Sand changing barrel

Abstract

The utility model belongs to the technical field of polishing equipment, and particularly relates to a sand changing barrel which comprises an upper cover plate, a counterweight plate assembly, a guide rod, a sand barrel assembly and a sliding sleeve which are sequentially arranged from top to bottom in the height direction, and the sand barrel assembly comprises a sliding shaft, a clamping spring, a chromium plating rod and a top hook; the balance weight plate assembly comprises a sliding shaft, a clamping spring and a balance weight plate. And one end of the upper cover plate is fixed on an external mechanism. Due to the fact that the balance weight plate assembly, the sand barrel assembly, the guide rod and the sliding sleeve are installed below the upper cover plate at the same time, the sand barrel replacing mechanism can achieve rapid and automatic sand replacing, and the polishing efficiency of a target object is improved. In the process of polishing the target object, the requirements of various polishing consumables with different mesh numbers can be met by using one sand changing barrel mechanism, different types of polishing mechanisms do not need to be replaced midway, and the polishing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a sand changing bucket, which is used to quickly change sandpaper during polishing operations to improve work efficiency and reduce sandpaper waste. Background Technology

[0002] In traditional polishing operations, sandpaper replacement is usually done manually, which is not only time-consuming and labor-intensive, but also prone to causing sandpaper damage during the replacement process. Furthermore, moving and positioning the sanding bucket is also a problem. Therefore, there is an urgent need for a sanding bucket that can quickly and efficiently replace sandpaper. Utility Model Content

[0003] The purpose of this invention is to provide a sand changing bucket to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides a sand changing bucket, comprising an upper cover plate, a counterweight plate assembly, a guide rod, a sand bucket assembly, and a sliding sleeve, which are stacked sequentially from bottom to top in the height direction. The sand bucket assembly includes a sliding shaft, a retaining spring, a chrome-plated rod, and a top hook; the counterweight plate assembly includes a sliding shaft, a retaining spring, and a counterweight plate; one end of the upper cover plate is fixed to an external mechanism.

[0005] Furthermore, the sand bucket assembly includes a sliding shaft, a retaining spring, a chrome-plated rod, a sand bucket, and a top hook. The sliding shaft is fixed in the groove of the sand bucket, and retaining springs are sleeved at both ends of the sliding shaft. The sliding shaft is hollow and has ball bearings that are sleeved on the chrome-plated rod. The top hook is installed in the groove below the sand bucket.

[0006] Furthermore, the guide rods are all arranged around the perimeter, with one end of the guide rod connected to the upper cover plate and the other end connected to the sand bucket; a movable counterweight plate assembly is provided in the middle of the guide rod; and a quick-release chrome-plated rod is provided between the upper cover plate and the sand bucket.

[0007] Furthermore, the counterweight assembly includes a sliding shaft, a retaining ring, and a counterweight plate.

[0008] Furthermore, the sliding shaft is fixed in the groove of the counterweight plate, and the upper and lower ends of the sliding shaft are fitted with retaining rings; the sliding shaft is hollow and has ball bearings fitted on the guide rod.

[0009] Furthermore, the other end of the chrome-plated rod is fixed to the sliding sleeve; the top hook is also embedded in the sliding sleeve.

[0010] The beneficial effects of this utility model are as follows:

[0011] Because a counterweight plate assembly, a sand bucket assembly, a guide rod, and a sliding sleeve are simultaneously installed under the upper cover plate, the sand bucket changing mechanism provided in this application can achieve rapid and automatic sand changing, thereby improving the polishing efficiency of the target item. During the polishing process, a single sand bucket changing mechanism can meet the needs of various polishing consumables with different grit sizes, eliminating the need to change to different types of polishing mechanisms midway, thus improving polishing efficiency. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the sand changing bucket provided in some embodiments of this utility model, wherein the sandpaper is not shown;

[0014] Figure 2 This is a schematic diagram of the overall structure of the sand changing bucket provided in some embodiments of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation structure of the sand changing bucket provided in some embodiments of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall front structure of the sand changing bucket provided in some embodiments of this utility model;

[0017] Figure 5 This is a schematic cross-sectional view of the sand changing bucket along the AA direction provided in some embodiments of this utility model;

[0018] Figure 6 This is a partial enlarged structural schematic diagram of the sand changing bucket provided in some embodiments of this utility model;

[0019] Figure 7 This is an exploded structural diagram of the sand changing bucket provided in some embodiments of this utility model;

[0020] Figure 8 This is a schematic diagram of the top hook release state structure of the sand changing bucket provided in some embodiments of this utility model;

[0021] Figure 9 This is a schematic diagram of the top hook recovery state structure of the sand changing bucket provided in some embodiments of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10. Top cover plate; 20. Counterweight plate; 21. First sliding shaft; 22. First snap ring; 30. Guide rod; 31. Quick-release chrome-plated rod; 40. Sand bucket; 41. Second sliding shaft; 42. Second snap ring; 43. Second chrome-plated rod; 44. Top hook; 441. Outer wall of top hook; 45. Spring; 50. Sliding sleeve; 501. Inner wall of sliding sleeve; 60. Sandpaper; 70. Upper fixing plate; 71. Upper guide block; 72. Upper hook. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] Reference Figures 1 to 9As an embodiment of this utility model, a sand changing bucket includes an upper cover plate 10, a counterweight plate assembly, a guide rod 30, a sand bucket assembly, and a sliding sleeve 50 arranged sequentially from top to bottom in the height direction. The sand bucket assembly includes a second sliding shaft 41, a second snap ring 42, a second chrome-plated rod 43, and a top hook 44. The counterweight plate assembly includes a first sliding shaft 21, a first snap ring 22, and a counterweight plate 20. One end of the upper cover plate 10 is fixed with an upper hook 72, which is hung on an upper guide block 71. The upper guide block 71 is connected to an upper fixed plate 70 by bolts.

[0029] Because the upper cover plate 10 simultaneously houses the counterweight plate assembly, sand bucket assembly, guide rod 30, and sliding sleeve 50, the sand bucket changing mechanism provided in this application enables rapid and automatic sand changing, thereby improving the polishing efficiency of the target item. During the polishing process, a single sand bucket changing mechanism can meet the needs of various polishing consumables with different grit sizes, eliminating the need to change to different types of polishing mechanisms midway, thus improving polishing efficiency.

[0030] The counterweight assembly is configured between the upper cover plate 10 and the sand bucket assembly, and can move up and down between the guide rods 30 via the first sliding shaft 21. In some embodiments of this application, the counterweight assembly can apply pressure to the sandpaper consumable 60 in the direction of the sliding sleeve 50 by its own weight, thereby controlling the discharge of the sandpaper consumable. The counterweight assembly, guide rods 30, sand bucket assembly, and sliding sleeve 50 all work together to form a polishing structure for automatically replacing sandpaper consumables. This polishing structure can load sandpaper consumables of different grits, automatically replace sandpaper, and improve the polishing efficiency of the target item.

[0031] In this embodiment, the sand bucket assembly includes a second sliding shaft 41, a second retaining spring 42, a second chrome-plated rod 43, a sand bucket 40, and a top hook 44. The second sliding shaft 41 is fixed in the groove of the sand bucket 40, and the second retaining spring 42 is sleeved at both the upper and lower ends of the second sliding shaft 41. The second sliding shaft 41 is hollow and has ball bearings that are sleeved on the second chrome-plated rod 43. The top hook 44 is installed in the groove below the sand bucket 40.

[0032] Furthermore, the guide rods 30 are all arranged around the perimeter, with one end of the guide rod 30 connected to the upper cover plate 10 and the other end connected to the sand bucket 40; a movable counterweight plate assembly is provided in the middle of the guide rod 30; and a quick-release chrome-plated rod 31 is provided between the upper cover plate 10 and the sand bucket 40.

[0033] Specifically, the counterweight assembly includes a first sliding shaft 21, a first retaining spring 22, and a counterweight plate 20; the first sliding shaft 21 is fixed in the groove of the counterweight plate 20, and the first retaining spring 22 is sleeved at both the upper and lower ends of the first sliding shaft 21; the first sliding shaft 21 is hollow and has ball bearings which are sleeved on the guide rod 30.

[0034] In some embodiments of this application, reference is made to Figures 2 to 9 As shown, the other end of the second chrome-plated rod 43 is fixed to the sliding sleeve 50; the top hook 44 is also embedded in the sliding sleeve 50.

[0035] In this layout, once the sliding sleeve 50 is successfully aligned, the sandpaper consumable 60 installed between the sand changing buckets will be pushed downwards by the counterweight plate assembly due to its own weight. During the sand changing process, the scouring pad moves to the bottom of the sand changing bucket and aligns with the sliding sleeve 50. After successful alignment, the scouring pad will push upwards against the sand changing bucket. Since the components above the sliding sleeve 50 are connected to the upper fixed plate 71, and the components above the sand bucket 40 are fixed, the sliding sleeve 50 will be pushed upwards. A spring 45 is installed between the sand bucket 40 and the sliding sleeve 50. When the sliding sleeve 50 moves upwards, the spring 45 will be compressed, and the upper end of the outer wall 441 of the top hook will move outwards due to contact with the upper end of the inner wall 501 of the sliding sleeve, thereby causing the installed... The tip of the hook 44 inside the sand bucket 40 moves outward, pushing the sandpaper 60 downward under the weight of the counterweight plate 20, thus completing the replacement of the sandpaper 60. After the sand bucket has replaced the sandpaper 60, the polishing disc moves out from under the sand bucket, and the sliding sleeve 50 loses the upward thrust of the polishing disc. The spring 45, due to the loss of the polishing disc's thrust, is compressed and then released, causing the spring 45 to return to its original position and push the sliding sleeve 50 back to its original position. As the sliding sleeve 50 moves downward, the upper end of the inner wall 501 of the sliding sleeve moves downward and contacts the lower end of the outer wall 441 of the hook, causing the tip of the hook 44 inside the sand bucket 40 to move inward. The hook 44 hooks the sandpaper 60 from below to prevent excessive release of the sandpaper 60. This solves the problem of using a single sand bucket replacement mechanism to meet the needs of various polishing consumables with different grits during the polishing process, eliminating the need to change different types of polishing mechanisms midway, thus improving polishing efficiency.

[0036] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sand changing pot, characterized in that, Including in the height direction from top to bottom in turn set of upper cover plate (10), counterweight plate assembly, guide rod (30), sand bucket assembly and sliding sleeve (50), the sand bucket assembly includes second sliding shaft (41), second snap spring (42), second chromium plated bar (43) and top hook (44); The counterweight plate assembly includes first sliding shaft (21), first snap spring (22) and counterweight plate (20); One end of the upper cover plate (10) is fixed on the external mechanism.

2. A sand changing bucket as claimed in claim 1, wherein The sand bucket assembly includes second sliding shaft (41), second snap spring (42), second chromium plated bar (43), sand bucket (40) and top hook (44), the second sliding shaft (41) is fixed in the recess of the sand bucket (40), and the upper and lower ends of the second sliding shaft (41) are sleeved with second snap spring (42); The second sliding shaft (41) is hollow and provided with a ball and is sleeved on the second chromium plated bar (43); The top hook (44) is installed in the recess below the sand bucket (40).

3. A sand changing bucket as claimed in claim 1, wherein The guide rod (30) is arranged around, one end of the guide rod (30) is connected to the upper cover plate, and the other end is connected to the sand bucket; The guide rod (30) is provided with a movable counterweight plate assembly in the middle; A quick release type chromium plated bar (31) is arranged between the upper cover plate and the sand bucket.

4. A sand changing bucket as claimed in claim 1, wherein, The first sliding shaft (21) is fixed in the recess of the counterweight plate (20), and the upper and lower ends of the first sliding shaft (21) are sleeved with first snap spring (22); The first sliding shaft (21) is hollow and provided with a ball and is sleeved on the guide rod (30).

5. A sand changing bucket according to claim 1 or 2, wherein The other end of the second chromium plated bar (43) is fixed on the sliding sleeve (50); The top hook (44) is also embedded in the sliding sleeve (50).

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