Polishing device

Abstract

The utility model relates to a polishing device, this polishing device (1) includes: support (10), drive roll (31) and driven roll (32), they are arranged rotatably on support (10) at each other interval, driver (20), it is installed on support (10), and is used for driving drive roll (31), polishing abrasive band (40), it is tensioned on drive roll (31) and driven roll (32), support plate (52), it is arranged on support (10) with the section of polishing abrasive band (40) contact to be polished object section apart at predetermined distance, and stop (50), it is set up on the support (10) across polishing abrasive band (40).

Description

Technical Field

[0001] This utility model relates to a grinding device, which can be used, for example, to grind the surface of an object to be ground, such as the end face of an aluminum core. Background Technology

[0002] Aluminum cores can be used as auxiliary materials for aluminum coils. Aluminum cores are mainly extruded profiles, available in different inner diameters and wall thicknesses according to customer needs, with a typical length of about 5 meters. Depending on the width of the product to be wound onto the aluminum core, it needs to be cut to the appropriate size. However, during the cutting process, burrs and cutting steps are inevitably generated on the cut end face, which can easily damage the material when the products are finally stacked, resulting in product scrap. Therefore, before use, it is necessary to manually sand the end face to make it smooth. However, manual sanding is inefficient and has poor quality consistency. Utility Model Content

[0003] Therefore, according to this utility model, a polishing device is proposed, which can at least partially overcome the above-mentioned defects.

[0004] According to this utility model, the above-mentioned objective is thus achieved, namely, the grinding device includes: a support; a drive roller and a driven roller, which are spaced apart from each other and rotatably arranged on the support; a driver, which is mounted on the support and is used to drive the drive roller; a grinding belt, which is tensioned on the drive roller and the driven roller; a support plate, which is arranged on the support at a predetermined distance from the section of the grinding belt that contacts the object to be ground; and a stop, which is disposed on the support across the grinding belt.

[0005] According to an embodiment of this utility model, the driver is a motor.

[0006] According to an embodiment of the present invention, the driver is connected to the drive roller via a belt drive unit, wherein the belt drive unit includes a first pulley that is non-rotatably connected to the output shaft of the motor, a second pulley that is non-rotatably connected to the drive roller, and a drive belt tensioned on the first pulley and the second pulley.

[0007] According to an embodiment of the present invention, at least one of the drive roller, the driven roller, and the belt drive unit is provided with a cover.

[0008] According to an embodiment of the present invention, one roller neck of the drive roller near the motor is fixedly supported on the bracket in the axial direction, and the other roller neck is movably supported on the bracket in the axial direction.

[0009] According to an embodiment of the present invention, a support portion is provided for supporting the drive roller and the driven roller, and the support portion is detachably arranged on the bracket.

[0010] According to an embodiment of this utility model, the bracket is a frame structure made of profiles.

[0011] According to an embodiment of this utility model, the vertical height of the bracket can be adjusted, and / or

[0012] According to an embodiment of this utility model, the bracket is equipped with legs, and the height of the legs can be adjusted.

[0013] According to an embodiment of this utility model, the drive roller and the driven roller are constructed identically.

[0014] According to an embodiment of the present invention, the grinding device further includes a protective cover having an opening for placing the object to be ground, wherein the protective cover at least partially covers the sanding belt, and / or

[0015] According to an embodiment of the present invention, the grinding device also has a normally open switch for the driver.

[0016] The grinding device proposed in this utility model can grind the relevant surfaces of the object to be ground simply, safely and efficiently. Attached Figure Description

[0017] To better understand the above and other objects, features, advantages, and functions of this utility model, reference can be made to the preferred embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate the preferred embodiments of this utility model and do not limit the scope of this utility model in any way; the parts in the drawings are not drawn to scale. The utility model will now be described with the aid of the accompanying drawings.

[0018] Figure 1 A perspective view of a polishing apparatus according to one embodiment of the present invention is shown schematically;

[0019] Figure 2 schematically shown Figure 1 A top view of the grinding device;

[0020] Figure 3 schematically shown Figure 1 Right view of the grinding device;

[0021] Figure 4 schematically shown Figure 1 Front view of the polishing device; and

[0022] Figure 5 A perspective view of a polishing apparatus according to another embodiment of the present invention is shown schematically. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. The following description is exemplary and not intended to limit the scope of the present invention. Those skilled in the art can conceive of other ways to implement the present invention based on the preferred embodiments described, and such other ways also fall within the scope of the present invention.

[0024] Figure 1 A perspective view of a polishing apparatus 1 according to one embodiment of the present invention is shown schematically. The polishing apparatus 1 includes: a support 10; a drive roller 31 and a driven roller 32, which are spaced apart from each other and rotatably arranged on the support 10; a driver 20, mounted on the support 10 and used to drive the drive roller 31; a polishing belt 40, tensioned on the drive roller 31 and the driven roller 32; and a stop 50, which is disposed across the polishing belt 40 on the support 10. The polishing apparatus 1 also includes a support plate 52 (see...). Figure 5 The sections of the object to be polished that are in contact with the sanding belt 40 are arranged on the support 10 at predetermined distances (e.g., 1 mm to 5 mm).

[0025] For ease of description, in Figure 1 The diagram also shows a Cartesian coordinate system XYZ, in which the grinding device 1 is placed on a horizontal plane defined by the X and Y directions and has a height in the Z direction.

[0026] The support frame 10 is constructed as a frame structure.

[0027] For example, the support 10 may be composed of profiles (such as extruded aluminum profiles) 11, 12, and 13 extending along the X, Y, and Z directions, respectively. In the example shown, the upper and lower horizontal profiles 11 extending in the X direction have different lengths, i.e., the upper profile is longer than the lower profile, and is set according to the required sanding belt 40; the transverse profiles 12 extending in the Y direction and perpendicular to the horizontal profiles 11 have the same length and cross-sectional shape; other profiles not indicated by reference numerals are also arranged between the vertical profiles 13 extending in the Z direction to further enhance the structural stability of the support.

[0028] When the bracket 10 is made of profiles, the aforementioned profiles 11, 12, and 13 may have a square cross-section and may have a groove (not shown) extending continuously on each side, the groove having a T-shaped cross-section. For this purpose, the profiles 11, 12, and 13 may be connected together by L-shaped brackets and threaded connections (not shown) consisting of bolts and nuts.

[0029] Profiles 11 and 13 are shown to have different cross-sectional dimensions than profile 12. Of course, profiles 11, 12, and 13 may have the same cross-sectional dimensions.

[0030] The drive roller 31 and the driven roller 32 are respectively disposed at both ends of the upper horizontal profile 11. Their length may be greater than the length of the transverse profile connecting the upper horizontal profile 11, so that at least one end of the drive roller 31 and the driven roller 32 protrudes beyond the upper horizontal profile 11 in the Y direction.

[0031] The driver 20 can be designed as a motor, which can be mounted on the bracket 10 via the bracket 24. The driver 20 is shown mounted within the interior space of the bracket at the lower profile 11 of the bracket 10. Of course, the driver 20 can also be positioned in other locations on the bracket 10 as needed, such as at the upper profile 11 (not shown).

[0032] The motor is preferably connected to the drive roller 31 via a transmission device to drive and rotate the drive roller 31. The transmission device shown is designed as a belt drive, comprising a first pulley 21 non-rotatably connected to the motor's output shaft, a second pulley 22 non-rotatably connected to the drive roller 31, and a transmission belt 23 tensioned between the first pulley 21 and the second pulley 22. Preferably, the first pulley 21 and the second pulley 22 may have the same number of grooves on their circumferential sides, preferably multiple trapezoidal grooves arranged side-by-side, with the number and cross-section of the transmission belt corresponding to the number and cross-section of the grooves. Not shown, a belt tensioner may be provided for the aforementioned belt drive, which may also be arranged on the support 10.

[0033] Not shown, at least one of the drive roller 31, driven roller 32 and belt drive is provided with a cover to ensure the safety of the operator when the grinding device 1 is in motion.

[0034] One neck of the drive roller 31, closer to the motor, is axially fixedly supported on the bracket 10, while the other neck is axially movable on the bracket 10. Similarly, one neck of the driven roller 32 is axially fixedly supported on the bracket 10, while the other neck is axially movable on the bracket 10. This arrangement avoids potential jamming or uneven rotation of the drive roller 31 and / or driven roller 32 during operation due to thermal expansion.

[0035] The drive roller 31 and / or driven roller 32 can be arranged on the bracket 10 via the support portion 33. Specifically, the support portion 33 can be used to support the roller necks of the drive roller 31 and driven roller 32.

[0036] Support portions 33 can be correspondingly arranged at both ends of the upper horizontal profile 11 in the X direction, that is, a total of 4 support portions can be provided. The support portions 33 are detachably arranged on the bracket 10, which is advantageous for subsequent maintenance. Preferably, the length of the support portion 33 extending from the end of the upper horizontal profile 11 in the X direction is adjustable, so that the tension of the sanding belt 40 arranged on the drive roller 31 and the driven roller 32 can be adjusted by setting this length.

[0037] The vertical height of the bracket 10 is adjustable. For this purpose, the vertical profile 13 of the bracket 10 can be designed to be telescopic. In this case, the vertical profile 13 can be composed of multiple nested profile segments, and the vertical height of the bracket 10 can be adjusted by changing the telescopic length of each profile segment in the Z direction. Especially when the length of the vertical profile 13, composed of multiple nested profile segments, can be infinitely adjusted, the belt tensioning part mentioned above for the belt drive can be eliminated. Preferably, the vertical profiles 13 of the bracket 10 arranged sequentially in the X direction can be adjusted to have different lengths in use, so that the sanding belt 40 is arranged at an angle relative to the XY plane to match the object to be sanded.

[0038] Additionally, the support 10 is equipped with a foot 15, the height of which is adjustable. For example, the foot 15 may be designed with a threaded structure, and the height of the foot 15 can be changed by adjusting the length of the threaded rod extending from the foot 15, thereby ultimately adjusting the height of the grinding device relative to the base surface on which the grinding device is placed.

[0039] The drive roller 31 and the driven roller 32 can be constructed identically to minimize the number of components constituting the grinding device.

[0040] Although the stop 50 of the grinding device 1 is shown in the accompanying drawings as being designed in a basically straight line, the side of the stop 50 facing the object to be ground may also have a shape complementary to the shape of the surface of the object to be ground that contacts the stop 50, thereby facilitating the operator's work. The stop also prevents the object to be ground from accidentally flying out due to friction, thereby ensuring operational safety.

[0041] Preferably, the polishing device 1 also has a protective cover 51 (see Figure 5 The cover 51 covers the upper horizontal section for grinding between the corner sections of the sanding belt 40 tensioned on the drive roller 31 and driven roller 32 (when the grinding device 1 is placed on a horizontal plane and the drive roller 31 and driven roller 32 are arranged on a plane parallel to the horizontal plane). The cover 51 and the support plate 52 are respectively arranged on both sides of the aforementioned upper horizontal section of the sanding belt 40. The cover 51 has an opening for placing the object to be ground, the shape of which matches the shape of the object, thereby preventing the operator from accidentally contacting the operating sanding belt 40 and ensuring the operator's safety.

[0042] The abrasive belt 40 may include a substrate, abrasive particles, and a binder. The substrate is typically divided into paper-based and fabric-based substrates; the former is suitable for fine grinding, while the latter is suitable for coarse grinding. Common abrasives include alumina, silicon carbide, and diamond. Alumina is suitable for metals and wood, silicon carbide is suitable for hard and brittle materials, and diamond is suitable for ultrahard materials. Abrasive particles can have different grit sizes. The binder is used to fix the abrasive particles to the substrate; commonly used binders are resin binders with high temperature resistance and toughness. If necessary, a lubricant may be applied to the abrasive belt 40.

[0043] The grinding device 1 also has a switch for the drive unit 20. To further enhance safety, the switch can preferably be designed as a normally open switch 60 fixed to the mounting surface of the grinding device. In this case, when the grinding device is running, the operator closes the normally open switch, for example, by using their foot, thereby causing the drive unit, such as a motor, to operate, which in turn drives the sanding belt 40 to perform subsequent grinding work on the object to be ground; when the operator's foot leaves the normally open switch, the normally open switch opens, thereby de-energizing the drive unit and stopping the sanding belt 40.

[0044] In another embodiment not shown, the brackets 10 can also be welded together with each other using steel profiles.

[0045] The proposed grinding device can be used, for example, to process cut metal tubes, such as aluminum tubes. During grinding, the protective cover 51 (if applicable) is first installed, and then the switch is closed. This causes the grinding belt 40 to rotate at a predetermined speed and direction under the drive of the drive roller. The operator can press the metal tube against the grinding belt 40 on one side of the stop for a predetermined time, such as 3 to 5 seconds, to grind the end face to be ground flat. This greatly improves grinding efficiency and ensures that the entire end face is ground. Especially when the grinding belt 40 is equipped with a support plate 52 spaced at a predetermined distance from it, the support plate 52 can support the grinding belt 40 as it is pressed down by the metal tube during grinding, further contributing to ensuring the grinding effect.

[0046] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples. The scope of protection of this utility model is defined by the appended claims. Without departing from the principles and essence of this utility model, those skilled in the art may make changes or modifications to these embodiments, but all such changes and modifications shall fall within the scope of protection of this utility model.

Claims

1. A polishing device (1), characterized in that, The polishing device (1) includes: Support (10); The drive roller (31) and the driven roller (32) are arranged rotatably on the support (10) with spaced apart from each other; A driver (20) is mounted on the bracket (10) and is used to drive the drive roller (31). A sanding belt (40) is tensioned on the drive roller (31) and the driven roller (32); Support plate (52), which is arranged on bracket (10) at a predetermined distance from the section of the abrasive belt (40) that is in contact with the object to be abraded; and A stop (50) is provided on the bracket (10) across the abrasive belt (40).

2. The polishing device (1) according to claim 1, characterized in that, The driver (20) is a motor.

3. The polishing device (1) according to claim 2, characterized in that, The driver (20) is connected to the drive roller (31) via a belt drive unit, wherein the belt drive unit includes a first pulley (21) that is non-rotatably connected to the output shaft of the motor, a second pulley (22) that is non-rotatably connected to the drive roller (31), and a drive belt (23) tensioned on the first pulley (21) and the second pulley (22).

4. The polishing device (1) according to claim 3, characterized in that, At least one of the drive roller (31), the driven roller (32), and the belt drive is provided with a cover.

5. The polishing device (1) according to claim 3, characterized in that, One of the drive rollers (31) near the motor is axially fixedly supported on the bracket (10), and the other roller is axially movable and supported on the bracket (10).

6. The polishing apparatus (1) according to claim 5, characterized in that, A support (33) is provided for supporting the drive roller (31) and the driven roller (32), and the support (33) is detachably arranged on the bracket (10).

7. The polishing apparatus (1) according to any one of claims 1 to 6, characterized in that, The bracket (10) is a frame structure made of profiles.

8. The polishing apparatus (1) according to any one of claims 1 to 6, characterized in that, The vertical height of the bracket (10) can be adjusted, and / or The bracket (10) is equipped with legs (15) whose height can be adjusted.

9. The polishing apparatus (1) according to any one of claims 1 to 6, characterized in that, The drive roller (31) and the driven roller (32) are constructed identically.

10. The polishing apparatus (1) according to any one of claims 1 to 6, characterized in that, The polishing device (1) also has a cover (51) having an opening for placing the object to be polished, wherein the cover (51) at least partially covers the polishing belt (40), and / or The grinding device (1) also has a normally open switch (60) for the driver (20).

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