A lapping machine

Abstract

The grinding and polishing machine of this utility model includes a frame, at least one horizontally mounted rotatable polishing barrel on the frame, and a drive mechanism for rotating the polishing barrel. The polishing barrel has a material inlet on its side and a sealing cover placed at the material inlet. The sealing cover is characterized by consisting of an inner cover plate with several irregularly shaped through holes and a breathable mesh plate attached to the outer surface of the inner cover plate. The breathable mesh plate has densely packed air vents at at least each of the irregularly shaped through holes. The irregularly shaped through holes are constricted through holes with a larger inner end and a smaller outer end, and the inner sidewall of the through hole is beveled. The breathable mesh plate is made of stainless steel. This utility model provides good air permeability and heat dissipation during polishing operations, is not prone to clogging the air vents on the sealing cover, has high polishing efficiency, low maintenance costs, and a long service life.

Description

Technical Field

[0001] This utility model relates to the field of hardware processing technology, and in particular to a grinding and polishing machine. Background Technology

[0002] Hardware parts refer to tools made from metals such as gold, silver, copper, iron, and tin through processing and casting, used for fixing, processing, and decoration. Hardware parts require a polishing machine for grinding and smoothing (also called polishing) during processing. The polishing process is completed inside a polishing drum, a hexagonal, rotatable, horizontally arranged, sealed drum. The front side of the drum has an opening and a sealing cover. The workpiece and polishing abrasive are fed into the opening. Driven by a motor, the drum rotates, causing the workpiece to tumble and come into full contact with the polishing abrasive. The slight collisions and vibrations between the workpieces, combined with the action of the polishing abrasive, achieve the purpose of degreasing, derusting, and polishing the workpiece.

[0003] Most current polishing barrels have equidistant ventilation holes on the side of the polishing chamber. A filter screen is fixedly installed at each ventilation hole. The ventilation holes serve to allow airflow and heat dissipation, while the filter screen acts as a dust filter, preventing external dust from entering the polishing chamber through the ventilation holes. For example, the ventilation hole and filter screen structure disclosed in patent number 202120797908.5 for a new type of high-speed polishing machine for hardware processing has several disadvantages: First, the ventilation holes are square, and the filter screen is made of dense steel wire mesh. During the polishing process, polishing abrasive can easily enter the square holes, causing blockage. This necessitates removing the sealing plate periodically to clean the abrasive from the ventilation holes, significantly reducing polishing efficiency. Second, the steel wire mesh inside the ventilation holes is fine and easily damaged over time, requiring frequent replacement, resulting in high maintenance costs and extreme inconvenience. In addition, existing sizing machines, when there are multiple sizing barrels, are driven by two motors. One motor drives the mounting plates at both ends of the sizing barrel to rotate, so that the sizing barrel revolves around the sun, and the other motor drives the sizing barrel to rotate on its own axis. The two drive motors result in high production costs for the overall sizing machine.

[0004] Therefore, the existing polishing machines cannot meet the requirements of the majority of consumers. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems and deficiencies by providing a grinding and polishing machine that has good air permeability and heat dissipation, is not prone to clogging of the air vents, has high polishing efficiency, low maintenance costs, and a long service life.

[0006] The technical solution of this utility model is implemented as follows:

[0007] The grinding and polishing machine of this utility model includes a frame, at least one horizontally mounted rotatable polishing barrel on the frame, and a drive mechanism for rotating the polishing barrel. One side of the polishing barrel has a feed inlet and a sealing cover placed at the feed inlet. The sealing cover is characterized by: an inner cover plate with several irregularly shaped through holes and a breathable mesh plate attached to the outer surface of the inner cover plate; the breathable mesh plate has densely packed air holes at least at each of the irregularly shaped through holes. Further, the irregularly shaped through holes are constricted through holes with a larger inner end and a smaller outer end, and the inner sidewall of the through hole is beveled. Further, the breathable mesh plate is made of stainless steel.

[0008] The irregularly shaped through-hole can be configured in various ways depending on the situation. Generally, the irregularly shaped through-hole is a non-square or non-circular through-hole (preferably an elongated through-hole). Further, the irregularly shaped through-hole can be a V-shaped through-hole, a W-shaped through-hole, or a lace-shaped through-hole. A V-shaped through-hole is preferred.

[0009] Furthermore, the breathable mesh panel is detachably mounted on the outer surface of the inner cover plate.

[0010] Furthermore, the frame is equipped with a horizontal rotating frame and a drive motor connected to the rotating shaft of the rotating frame to drive its rotation. Multiple polishing barrels are mounted parallel to the rotating frame via connecting shafts. The drive mechanism includes a belt drive mechanism connecting the rotating shaft of the rotating frame and the connecting shaft of the polishing barrels. While the drive motor drives the rotating frame to revolve, the belt drive mechanism also drives each polishing barrel to rotate. The belt drive mechanism includes a first transmission gear located at the outer end of the rotating shaft of the rotating frame, a second transmission gear located on the connecting shaft of the polishing barrel, and a toothed transmission belt connecting the first and second transmission gears. When four polygonal polishing barrels are mounted on the frame, the second transmission gears of two adjacent polishing barrels are connected to the first transmission gear via a toothed transmission belt, and an adjusting wheel is provided between the two second transmission gears to adjust the tension of the toothed transmission belt.

[0011] The advantages of this utility model compared with the prior art are:

[0012] I. This utility model replaces the existing square or circular vent holes on the sealing cover with irregularly shaped vent holes. These irregularly shaped vent holes have a larger inner end and a smaller outer end, with beveled inner walls. This prevents the polishing abrasive from getting stuck and clogging the vent, significantly improving polishing efficiency, heat dissipation, and ventilation, while also reducing maintenance costs. Furthermore, this elongated cavity, unlike a square or circular cavity, has a narrower width and longer length compared to a square or circular cavity with the same internal volume and depth. This further reduces the likelihood of polishing abrasive entering and clogging the vent.

[0013] Second, since the breathable mesh plate is made of stainless steel plate attached to the outer surface of the inner cover plate, it is not easily damaged, has a reliable structure, and a long service life.

[0014] Third, since multiple smoothing barrels and the revolution frame are driven by a single motor and belt transmission mechanism to achieve revolution while also rotating independently, the overall production cost of the smoothing machine is effectively reduced.

[0015] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the sealing cap structure in this utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure after the middle sealing cap is flipped over;

[0019] Figure 4 for Figure 2 A schematic diagram of the assembly structure. Detailed Implementation

[0020] like Figures 1-3As shown, the grinding and polishing machine of this utility model includes a frame 1, multiple rotatable polishing barrels 2 mounted horizontally on the frame 1, and a drive mechanism for rotating the polishing barrels 2. The polishing barrels 2 have a feed inlet 21 on their side and a sealing cover (also called a feed inlet cover) placed over the feed inlet 21. The sealing cover mainly consists of an inner cover plate 22 with several irregularly shaped through holes 20 and a breathable mesh plate 23 attached to the outer surface of the inner cover plate 22. The breathable mesh plate 23 has densely packed breathable holes 24 at least at each of the irregularly shaped through holes 20. The irregularly shaped through holes 20 are elongated through holes that are neither square nor circular. The breathable mesh plate 23 is made of stainless steel. The inner side of the sealing cover also has a sealing rubber edge 25 that cooperates with the periphery of the feed inlet 21 to achieve a seal. Alternatively, a rubber sheet can be attached to the inner side of the sealing cover, with corresponding irregularly shaped holes corresponding to the positions of the irregularly shaped through holes. This invention replaces the existing square or round through holes on the sealing cover with elongated, irregularly shaped through holes, making it less likely for polishing abrasive to enter and cause blockages, thus greatly improving polishing efficiency and providing good heat dissipation and ventilation. Furthermore, the irregularly shaped through hole 20 is a constricted through hole with a larger inner end and a smaller outer end, and the inner sidewall of the through hole is beveled, further reducing the chance of blockage. The specific shape of the irregularly shaped through hole 20 can vary, such as a V-shaped, W-shaped, S-shaped, or lace-shaped through hole, etc. A V-shaped through hole as shown in the figure is preferred. To facilitate cleaning in case the irregularly shaped through hole becomes blocked, the ventilated mesh plate 23 is detachably mounted on the outer surface of the inner cover plate 22. This allows for easy cleaning by removing the ventilated mesh plate. The ventilated mesh plate is generally installed on the inner cover plate using locking screws.

[0021] The frame 1 is equipped with a horizontal rotating frame 3 and a drive motor 4 connected to the rotating shaft of the rotating frame 3 to drive the rotating frame 3 to rotate. Multiple polishing barrels 2 are mounted parallel to the rotating frame 3 via connecting shafts. The drive mechanism includes a belt drive mechanism connecting the rotating shaft of the rotating frame 3 and the connecting shaft of the polishing barrels 2. While the drive motor 4 drives the rotating frame 3 to revolve, the belt drive mechanism also drives each polishing barrel 2 to rotate. The belt drive mechanism includes a first transmission gear 5 mounted on the outer end of the rotating shaft of the rotating frame 3, a second transmission gear 6 mounted on the connecting shaft of the polishing barrel 2, and a toothed transmission belt 7 connecting the first transmission gear 5 and the second transmission gear 6. Furthermore, a protective cover (not shown in the figure) is provided outside the belt drive mechanism. As shown in the figure, when four polygonal polishing barrels 2 are mounted on the frame 1, the second transmission gears 6 of two adjacent polishing barrels 2 are connected to the first transmission gear 5 via a toothed transmission belt 7, and an adjusting wheel 8 is provided between the two second transmission gears 6 to adjust the tension of the toothed transmission belt.

[0022] In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "lying", "vertical", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0023] Although this invention has been described with reference to specific embodiments, such description is not intended to limit the invention. Other variations of the disclosed embodiments, based on the description of this invention, will be foreseeable to those skilled in the art, and such variations should fall within the scope defined by the appended claims.

Claims

1. A grinding and polishing machine, comprising a frame (1), at least one horizontally mounted rotatable polishing barrel (2) on the frame (1), a drive mechanism for rotating the polishing barrel (2), wherein the polishing barrel (2) has a feed inlet (21) on its side and a sealing cover placed at the feed inlet (21), characterized in that: The sealing cover is mainly composed of an inner cover plate (22) with several irregular through holes (20) and a breathable mesh plate (23) attached to the outer surface of the inner cover plate (22). The breathable mesh plate (23) has dense breathable holes (24) at least at each irregular through hole (20). The irregular through hole (20) is a narrow-mouthed through hole with a large inner end and a small outer end, and the inner sidewall of the through hole is a bevel. The irregular through hole (20) is a non-square or non-circular through hole.

2. The grinding and polishing machine according to claim 1, characterized in that: The breathable mesh plate (23) is made of stainless steel.

3. The grinding and polishing machine according to claim 1, characterized in that: The irregular through hole (20) is a V-shaped through hole, a W-shaped through hole, or a lace-shaped through hole.

4. The grinding and polishing machine according to claim 1, characterized in that: The breathable mesh plate (23) is detachably mounted on the outer surface of the inner cover plate (22).

5. The grinding and polishing machine according to claim 1, characterized in that: The inner side of the sealing cap is also provided with a sealing rubber edge (25) that cooperates with the periphery of the material inlet (21) to achieve a seal.

6. The grinding and polishing machine according to claim 1 or 2, characterized in that: The frame (1) is provided with a horizontal orbital frame (3) and a drive motor (4) connected to the rotating shaft of the orbital frame (3) to drive the orbital frame (3) to rotate. Multiple smoothing barrels (2) are installed parallel to the orbital frame (3) through connecting shafts. The drive mechanism includes a belt drive mechanism that connects the rotating shaft of the orbital frame (3) and the connecting shaft of the smoothing barrels (2). While the drive motor (4) drives the orbital frame (3) to revolve, the belt drive mechanism drives each smoothing barrel (2) to rotate.

7. The grinding and polishing machine according to claim 6, characterized in that: The belt drive mechanism includes a first drive gear (5) mounted on the outer end of the rotating shaft of the rotating frame (3), a second drive gear (6) mounted on the connecting shaft of the smoothing barrel (2), and a toothed drive belt (7) connecting the first drive gear (5) and the second drive gear (6).

8. The grinding and polishing machine according to claim 7, characterized in that: The frame (1) is equipped with four polygonal smoothing barrels (2). The second transmission gears (6) of two adjacent smoothing barrels (2) are connected to the first transmission gear (5) through a toothed transmission belt (7). An adjusting wheel (8) is provided between the two second transmission gears (6) to adjust the tension of the toothed transmission belt.

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