A mold maintenance polishing and oiling device

Abstract

The utility model discloses a mould maintenance and maintenance polishing oiling device, especially relates to mould maintenance technical field, including the cabinet, the cabinet top is fixed with the operation table, the operation table both sides all are installed with movable frame, and the movable frame between two is swingly connected with the pivot through bearing seat, the pivot outer end equidistance installation is used for polishing the polishing roller group of car mould, the drying case group of drying polishing after car mould and the oiling roller group of smearing lubricating oil for car mould, is rotated to car mould just above in proper order through drive pivot and drives polishing roller group, drying case group and oiling roller group to polish, oil car mould to the operation table. The utility model discloses the polishing roller group, drying case group and oiling roller group are integrated on the pivot, realize the polishing and oiling two steps operation of using one equipment, compared with traditional processing steps, be favorable to the polishing oiling processing efficiency of car mould, can also save the daily maintenance cost of car mould.

Description

Technical Field

[0001] This utility model relates to the field of mold maintenance technology, specifically to a mold maintenance, polishing and oiling device. Background Technology

[0002] Automotive molds are core tools in the production of automotive parts, and their precision, lifespan, and efficiency directly affect the quality, cost, and production cycle of automobiles. From stamped parts to plastic parts, automotive molds cover multiple areas such as body, interior, and powertrain systems. Polishing is often the final process in automotive mold manufacturing, and it is also an indispensable part of routine maintenance. Regular polishing can remove surface stress concentration points, delay fatigue crack propagation, increase the life of stamping dies by 20%-30%, and extend the life of injection molds by more than 50%.

[0003] Currently, after polishing, automotive molds require an additional layer of lubricating oil on their surface to isolate water and oxygen, prevent oxidation and rust, and lubricate the mold to reduce wear. Polishing and oiling of automotive molds are typically done in two steps, necessitating the use of two different processing equipment, such as a polishing machine and the oiling device described in prior art publication CN208711982U. This two-step process not only affects processing efficiency but also increases the daily maintenance costs of automotive molds.

[0004] In addition, traditional oiling devices often use spraying to apply lubricating oil to automotive molds. This results in some lubricating oil falling outside the mold, wasting the oil and increasing the cost of routine maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a mold maintenance, polishing, and oiling device. By integrating a polishing roller group, a drying box group, and an oiling roller group on a rotating shaft, it enables the completion of polishing and oiling operations with a single device. Compared with traditional processing steps, this device improves the efficiency of polishing and oiling automotive molds and saves on the daily maintenance costs of automotive molds, thus addressing the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold maintenance, polishing, and oiling device, including a cabinet, an operating table fixed on the top of the cabinet, movable frames installed on both sides of the operating table, and a rotating shaft movably connected between the two movable frames via bearing seats. At equal intervals on the outer end of the rotating shaft are installed a polishing roller group for polishing automotive molds, a drying box group for drying the polished automotive molds, and an oiling roller group for applying lubricating oil to the automotive molds. The rotating shaft drives the polishing roller group, drying box group, and oiling roller group to rotate sequentially above the automotive molds for polishing and oiling.

[0007] Preferably, the polishing roller assembly includes a polishing roller fixed to the outer end of the rotating shaft by a bracket, a hollow shaft fixed inside the polishing roller, and multiple through holes connected to the polishing roller on the hollow shaft. One end of the hollow shaft is movably connected to a water pipe for injecting polishing medium into the hollow shaft through a sealed bearing.

[0008] The drying chamber assembly includes an air outlet box fixed to the outer end of the rotating shaft by a bracket. One end of the air outlet box is movably connected to an air pipe for injecting hot air into the air outlet box through a sealed bearing. When the air outlet box rotates to be directly above the car mold, the hot air sprayed out is used to dry the polishing medium.

[0009] Preferably, one end of the rotating shaft is connected to a supply pipe assembly for providing polishing medium to the water supply pipe and hot air to the air supply pipe;

[0010] The supply pipe assembly includes a connecting pipe movably connected to one end of the rotating shaft. The outer end of the connecting pipe is movably connected to a supply box a via a sealed bearing. The end of the water pipe away from the hollow shaft and the end of the air pipe away from the air outlet box are both connected to the interior of the supply box a. The end of the connecting pipe away from the rotating shaft is fixedly connected to a supply box b. Both the supply box b and the connecting pipe have two independent cavities inside. Each of the two cavities in the supply box b is connected to a connecting pipe, and the two connecting pipes supply polishing medium and hot air to the two cavities respectively.

[0011] Preferably, the oiling roller assembly includes a sponge roller, both ends of which are movably connected to a telescopic rod via bearings. The end of the telescopic rod away from the sponge roller is fixed to the outer wall of the rotating shaft. An oil tank is fixed to the outer wall of the rotating shaft. Multiple oil outlet channels are provided in the oil tank. A sealing rod is inserted into each oil outlet channel. A hollow plug is fixed to the bottom end of the sealing rod. Multiple oil outlet holes are provided at the top and bottom of the hollow plug. When the sponge roller rotates to directly above the car mold, the sealing rod and the oil outlet channels are squeezed upward by the sponge roller. Then, the lubricating oil inside the oil tank flows out through the oil outlet channels and oil outlet holes and is absorbed by the sponge roller.

[0012] Preferably, the front side of the oil tank is fixedly connected to an oil injection pipe for adding lubricating oil into the oil tank, and a rubber stopper is inserted into the opening at the top of the oil injection pipe to prevent lubricating oil leakage.

[0013] Preferably, each movable frame includes a base fixed to the top of the cabinet, the movable frame being slidably connected to the top of the base, and both ends of the rotating shaft being mounted on the top of the movable frame via bearing seats;

[0014] A limiting plate is provided on one side of the two movable frames that are close to each other. The limiting plate is driven by a driving component installed at the bottom of the movable frame to move towards the center of the operating table.

[0015] Preferably, the operating table is provided with multiple drainage holes, and the bottom of the operating table is provided with a wastewater collection tank for collecting excess polishing media;

[0016] The wastewater collection tank assembly includes a water guide platform fixed to the bottom of the operating table. A water tank is fixedly connected to the bottom end of the water guide platform, and a drain pipe is connected to one side of the water tank. A valve is fixed to the outer end of the drain pipe.

[0017] Preferably, an audible and visual alarm is fixed to the rear top of the cabinet, and a control panel for controlling the rotation of the polishing roller group, the drying box group, and the oiling roller group is provided on the top side of one side of the cabinet. The audible and visual alarm lights up when the polishing roller group, the drying box group, and the oiling roller group are working, and the colors of the lights are different, which can help the surrounding workers to distinguish the working status of this utility model.

[0018] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0019] 1. By integrating the polishing roller group, drying box group and oiling roller group on the rotating shaft, the polishing and oiling two-step operation can be completed with one machine. Compared with the traditional processing steps, it is beneficial to improve the polishing and oiling efficiency of automotive molds, while also saving the daily maintenance cost of automotive molds.

[0020] 2. By using the oiling roller group to directly apply lubricating oil to the areas polished by the polishing roller group, the oiling position is ensured to be accurate, avoiding waste of lubricating oil. This helps to save on the daily maintenance costs of automotive molds and also eliminates the tedious operation of manually aligning the oiling position of automotive molds in the traditional spraying lubricating oil operation, thereby further improving the processing efficiency of automotive molds. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a front view of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the polishing roller assembly, drying box assembly, oiling roller assembly, and wastewater collection box assembly of this utility model;

[0025] Figure 4This is a schematic diagram of the polishing roller assembly, drying box assembly, and oiling roller assembly of this utility model;

[0026] Figure 5 This is a schematic diagram of the polishing roller assembly of this utility model when it is vertically downward.

[0027] Figure 6 This is a schematic diagram of the drying box assembly of this utility model when it is vertically downward.

[0028] Figure 7 This is a schematic diagram of the oil roller assembly of this utility model when it is vertically downward.

[0029] Figure 8 This is a schematic diagram of the structure of the oil tank and oil outlet of this utility model;

[0030] Figure 9 This is a schematic diagram of the wastewater collection tank assembly of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Cabinet; 2. Control panel; 3. Movable rack; 4. Polishing roller assembly; 5. Drying box assembly; 6. Oiling roller assembly; 7. Wastewater collection tank assembly; 8. Control panel; 9. Supply pipe assembly; 10. Rotary shaft; 11. Audible and visual alarm;

[0033] 31. Base; 32. Movable frame; 33. Limiting plate; 34. Driving component;

[0034] 41. Polishing roller; 42. Hollow shaft; 43. Water pipe;

[0035] 51. Air outlet box; 52. Air pipe;

[0036] 61. Sponge roller; 62. Telescopic rod; 63. Oil tank; 64. Oil injection pipe; 65. Oil outlet; 66. Sealing rod; 67. Hollow plug; 68. Oil outlet hole;

[0037] 71. Water guide platform; 72. Water tank; 73. Drain pipe;

[0038] 91. Supply box a; 92. Connecting pipe; 93. Supply box b; 94. Connecting pipe. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0040] This utility model provides, for example Figure 1-9The device shown is a mold maintenance, polishing, and oiling device, including a cabinet 1. The cabinet 1 has upper and lower layers. The upper layer has an operating table 2 fixed on top of the cabinet 1, and the automotive mold to be processed is placed on top of the operating table 2. The lower layer is located at the bottom of the operating table 2. Figure 3 and 9 As shown, the bottom of the operating table 2 is provided with a wastewater collection tank assembly 7 for collecting excess polishing media. Specifically, the wastewater collection tank assembly 7 includes a water guide platform 71 fixed to the bottom of the operating table 2. A water tank 72 is fixedly connected to the bottom end of the water guide platform 71. A drain pipe 73 is connected to one side of the water tank 72. A valve is fixed to the outer end of the drain pipe 73.

[0041] Movable racks 3 are also installed on both sides of the control panel 2, specifically, such as Figure 4 As shown: Each movable frame 3 includes a base 31 fixed to the top of the cabinet 1. A movable frame 32 is slidably connected to the top of the base 31. A linear drive device is installed on the base 31, which can drive the movable frame 32 to slide back and forth on the top of the base 31 to change the polishing position. A limiting plate 33 is provided on the side where the two movable frames 32 are close to each other. The limiting plate 33 is driven by a drive member 34 installed at the bottom of the movable frame 32 to move towards the center of the operating table 2. It can be used to clamp the car mold placed on the top of the operating table 2 so that it can remain stationary during the polishing process.

[0042] It is worth noting that the drive component 34 used in this embodiment is also a linear drive device. Existing linear drive components such as electric cylinders, hydraulic cylinders, and linear motors can all be used in this utility model, and no further restrictions are imposed here.

[0043] A rotating shaft 10 is movably connected between the two movable frames 3. Both ends of the rotating shaft 10 are mounted on the top of the movable frame 32 via bearing seats. Polishing roller assembly 4, drying box assembly 5, and oiling roller assembly 6 are installed at equal intervals on the outer end of the rotating shaft 10. Figure 4 As shown, the polishing roller group 4, drying box group 5, and oiling roller group 6 are used for polishing, drying, and oiling the car mold, respectively. The included angle between the polishing roller group 4, drying box group 5, and oiling roller group 6 is set to 120°. That is, every time the rotating shaft 10 rotates 120°, one of the polishing roller group 4, drying box group 5, and oiling roller group 6 can be rotated to be directly above the car mold, so that it is vertically downward, and the corresponding processing operation can be performed on the car mold.

[0044] An audible and visual alarm 11 is fixed on the top rear side of the cabinet 1. The audible and visual alarm 11 lights up when the polishing roller group 4, the drying box group 5, and the oiling roller group 6 are working, and the colors of the lights are different, which can help the surrounding workers to distinguish the working status of this utility model. The operation of the polishing roller group 4, the drying box group 5, and the oiling roller group 6 are all controlled by the control panel 8 installed on the top side of the cabinet 1. The lighting of the audible and visual alarm 11 is also controlled by the control panel 8.

[0045] The polishing and oiling process of automotive molds will be described below in conjunction with specific structures:

[0046] First, according to the processing sequence, the automotive mold needs to be polished using polishing roller group 4. The specific structure of polishing roller group 4 is as follows: Figure 5 and Figure 6 As shown: a polishing roller 41 is fixed to the outer end of the rotating shaft 10 by a bracket. A hollow shaft 42 is fixed inside the polishing roller 41. The hollow shaft 42 is driven to rotate by a motor installed at one end. When the hollow shaft 42 rotates, it can drive the polishing roller 41 to rotate on the surface of the car mold, thereby achieving the polishing treatment of the car mold.

[0047] It is known that a processing medium is required during the polishing process of automotive molds, and different types of polishing media are needed for different stages of polishing. For example, water is used as the polishing medium in the rough polishing stage, while anhydrous ethanol is used as the polishing medium in the fine polishing / mirror polishing stage. In this embodiment, to ensure the smooth progress of the polishing stage, multiple interconnected through holes are provided on the hollow shaft 42 and the polishing roller 41. One end of the hollow shaft 42 is movably connected to a water pipe 43 for injecting polishing medium into the hollow shaft 42 through a sealed bearing. The polishing medium delivered to the hollow shaft 42 by the water pipe 43 can flow out through the through holes on the hollow shaft 42 and the polishing roller 41 before contacting the automotive mold, thereby reducing wear on the automotive mold during the polishing process and avoiding local overheating caused by friction.

[0048] Next, to prevent residual polishing media on the automotive mold from affecting the contact between the lubricating oil and the mold, it is necessary to use drying box 5 to remove the residual polishing media—water or anhydrous ethanol—from the automotive mold; such as Figure 6As shown: The specific structure of the drying box assembly 5 includes an air outlet box 51 fixed to the outer end of the rotating shaft 10 by a bracket. One end of the air outlet box 51 is movably connected to an air pipe 52 for injecting hot air into the air outlet box 51 through a sealed bearing. When the rotating shaft 10 drives the air outlet box 51 to rotate directly above the car mold, the motor at one end of the rotating shaft 10 needs to be turned off to keep the air outlet box 51 in that position. Then, the hot air sprayed through the air outlet box 51 dries the polishing medium water or anhydrous ethanol remaining on the car mold. The water can be evaporated into water vapor by the hot air, and the anhydrous ethanol can be directly heated and evaporated into the air.

[0049] In the above process, in order to facilitate the supply of polishing medium to the polishing roller 41 and the supply of hot air to the air box 51, a supply pipe assembly 9 for supplying polishing medium to the water pipe 43 and hot air to the air pipe 52 is connected to one end of the rotating shaft 10, specifically as follows: Figure 5 As shown: The supply pipe assembly 9 includes a connecting pipe 92 movably connected to one end of the rotating shaft 10. The outer end of the connecting pipe 92 is movably connected to the supply box a91 via a sealed bearing. The end of the water pipe 43 away from the hollow shaft 42 and the end of the air pipe 52 away from the air outlet box 51 are both connected to the inside of the supply box a91. The end of the connecting pipe 92 away from the rotating shaft 10 is fixedly connected to the supply box b93. Both the supply box b93 and the connecting pipe 92 have two independent cavities inside. The two cavities in the supply box b93 are respectively connected to a connecting pipe 94. The two connecting pipes 94 are respectively connected to a hot air blower and a box filled with polishing medium, so that the two cavities can be supplied with polishing medium through the two connecting pipes 94 respectively. The polishing medium and hot air are supplied to ensure the smooth operation of polishing and drying. In addition, in this embodiment, in order to ensure that the polishing roller group 4, the drying box group 5 and the oiling roller group 6 can rotate with the rotating shaft 10, the supply box a91 and the connecting pipe 92 are specially set to be rotatably connected by sealed bearings. This allows the water pipe 43 connected to the hollow shaft 42 and the air pipe 52 connected to the air outlet box 51 to drive the supply box a91 to rotate synchronously when the polishing roller group 4, the drying box group 5 and the oiling roller group 6 rotate, while keeping the connecting pipe 92 and the supply box b93 stationary, so as to avoid the pipe connected to the connecting pipe 94 from getting tangled.

[0050] Finally, lubricating oil is applied to the polished areas of the automotive mold using the oil roller assembly 6, specifically as follows: Figure 4-8As shown: The structure of the oil roller group 6 includes a sponge roller 61 driven by a motor. Both ends of the sponge roller 61 are movably connected to telescopic rods 62 through bearings. The end of the telescopic rod 62 away from the sponge roller 61 is fixed to the outer wall of the rotating shaft 10. An oil tank 63 is fixed to the outer wall of the rotating shaft 10. Multiple oil outlet channels 65 are opened in the oil tank 63. A sealing rod 66 is inserted into the oil outlet channel 65. A hollow plug 67 is fixed to the bottom end of the sealing rod 66. Multiple oil outlet holes 68 are opened at the top and bottom of the hollow plug 67. When the sponge roller 61 rotates to directly above the car mold, the sealing rod 66 and the oil outlet channel 65 are squeezed upward by the sponge roller 61. Then, the lubricating oil inside the oil tank 63 flows out through the oil outlet channel 65 and the oil outlet hole 68 and is absorbed by the sponge roller 61. After the sponge roller 61 absorbs the lubricating oil, it can be driven to rotate by a motor installed at one end, so that the side with the absorbed lubricating oil can be rotated downward to contact the car mold, thereby applying the lubricating oil to the car mold.

[0051] Moreover, through Figure 7 It can be seen that a spring is installed in the telescopic rod 62. When the sponge roller 61 rotates with the rotating shaft 10 to directly above the car mold, it compresses the telescopic rod 62 upwards. This allows the spring in the telescopic rod 62 to simultaneously apply a downward force to the sponge roller 61. Under this force, the bottom of the sponge roller 61 is pressed against the surface of the car mold, allowing the sponge roller 61 to apply lubricating oil to the grooves on the surface of the car mold and improving the overall coverage of the lubricating oil. Also under the force of this spring, when the sponge roller 61 moves away from the top of the car, the compressed spring in the telescopic rod 62 will push the sponge roller 61 away from the rotating shaft 10. This allows the sealing rod 66 and the hollow plug 67, which were previously pushed upwards by the sponge roller 61, to move downwards along the oil outlet 65, blocking the oil outlet 65 and preventing lubricating oil from flowing out of the oil tank 63 during other processing steps, thus avoiding waste of lubricating oil.

[0052] In addition, if the lubricating oil runs out, lubricating oil can be added to the oil tank 63 through the oil filling pipe 64 installed on the front side of the oil tank 63. The top of the oil filling pipe 64 has a rubber stopper, which can be inserted into the opening of the oil filling pipe 64 when no oil is needed to prevent lubricating oil leakage.

[0053] It is worth noting that the motors used to drive the rotating shaft 10, polishing roller group 4 and oiling roller group 6 in this utility model can be SEW Eurodrive R series geared motors, Neugart PLE series geared motors or NMRV series geared motors available on the market. Other series of motors that can drive the rotating shaft 10, polishing roller group 4 and oiling roller group 6 can also be used in this utility model, and no further restrictions are imposed here.

[0054] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mold maintenance, polishing, and oiling device, comprising a cabinet (1), characterized in that: The cabinet (1) has an operating table (2) fixed on top. Movable frames (3) are installed on both sides of the operating table (2). A rotating shaft (10) is movably connected between the two movable frames (3) through a bearing seat. A polishing roller group (4) for polishing the car mold, a drying box group (5) for drying the polished car mold, and an oiling roller group (6) for applying lubricating oil to the car mold are installed at equal intervals on the outer end of the rotating shaft (10). The polishing roller group (4), the drying box group (5) and the oiling roller group (6) are driven by the rotating shaft (10) to rotate in sequence to directly above the car mold to polish and oil the car mold.

2. The mold maintenance, polishing, and oiling device according to claim 1, characterized in that: The polishing roller assembly (4) includes a polishing roller (41) fixed to the outer end of the rotating shaft (10) by a bracket. A hollow shaft (42) is fixed inside the polishing roller (41). Multiple through holes are opened on the hollow shaft (42) and the polishing roller (41). One end of the hollow shaft (42) is movably connected to a water pipe (43) for injecting polishing medium into the hollow shaft (42) through a sealed bearing. The drying box assembly (5) includes an air outlet box (51) fixed to the outer end of the rotating shaft (10) by a bracket. One end of the air outlet box (51) is movably connected to an air pipe (52) for injecting hot air into the air outlet box (51) through a sealed bearing. When the air outlet box (51) rotates to directly above the car mold, the hot air sprayed out is used to dry the polishing medium remaining on the car mold.

3. The mold maintenance, polishing, and oiling device according to claim 2, characterized in that: One end of the rotating shaft (10) is connected to a supply pipe assembly (9) for providing polishing medium to the water supply pipe (43) and hot air to the air supply pipe (52); The supply pipe assembly (9) includes a connecting pipe (92) movably connected to one end of the rotating shaft (10). The outer end of the connecting pipe (92) is movably connected to the supply box a (91) through a sealed bearing. The end of the water pipe (43) away from the hollow shaft (42) and the end of the air pipe (52) away from the air outlet box (51) are both connected to the inside of the supply box a (91). The end of the connecting pipe (92) away from the rotating shaft (10) is fixedly connected to the supply box b (93). The supply box b (93) and the connecting pipe (92) are each provided with two independent cavities. The two cavities in the supply box b (93) are respectively connected to a connecting pipe (94). The two connecting pipes (94) supply polishing medium and hot air to the two cavities respectively.

4. The mold maintenance, polishing, and oiling device according to claim 1, characterized in that: The oiling roller assembly (6) includes a sponge roller (61). Both ends of the sponge roller (61) are movably connected to telescopic rods (62) via bearings. The end of the telescopic rod (62) away from the sponge roller (61) is fixed to the outer wall of the rotating shaft (10). An oil tank (63) is fixed to the outer wall of the rotating shaft (10). Multiple oil outlet channels (65) are provided in the oil tank (63). A sealing rod (66) is inserted into the oil outlet channel (65). A hollow plug (67) is fixed to the bottom end of the sealing rod (66). Multiple oil outlet holes (68) are provided at the top and bottom of the hollow plug (67). When the sponge roller (61) rotates to directly above the car mold, the sealing rod (66) and the oil outlet channel (65) are squeezed upward by the sponge roller (61). Then, the lubricating oil inside the oil tank (63) flows out through the oil outlet channel (65) and the oil outlet hole (68) and is absorbed by the sponge roller (61).

5. The mold maintenance, polishing, and oiling device according to claim 4, characterized in that: The front side of the oil tank (63) is fixedly connected to an oil injection pipe (64) for adding lubricating oil into the oil tank (63).

6. The mold maintenance, polishing, and oiling device according to claim 1, characterized in that: Each movable frame (3) includes a base (31) fixed to the top of the cabinet (1), and a movable frame (32) is slidably connected to the top of the base (31). Both ends of the rotating shaft (10) are mounted on the top of the movable frame (32) through bearing seats. A limiting plate (33) is provided on one side of the two movable frames (32) that are close to each other. The limiting plate (33) is driven by a driving member (34) installed at the bottom of the movable frame (32) to move towards the center of the operating table (2).

7. The mold maintenance, polishing, and oiling device according to claim 2, characterized in that: The operating table (2) is provided with multiple drainage holes, and the bottom of the operating table (2) is provided with a wastewater collection box group (7) for collecting excess polishing media; The wastewater collection tank assembly (7) includes a water guide platform (71) fixed at the bottom of the operating table (2). A water tank (72) is fixedly connected to the bottom end of the water guide platform (71). A drain pipe (73) is connected to one side of the water tank (72). A valve is fixed to the outer end of the drain pipe (73).

8. The mold maintenance, polishing, and oiling device according to claim 1, characterized in that: A sound and light alarm (11) is fixed on the rear top of the cabinet (1). A control panel (8) for controlling the rotation of the polishing roller group (4), the drying box group (5) and the oiling roller group (6) is provided on the top side of one side of the cabinet (1). The sound and light alarm (11) lights up when the polishing roller group (4), the drying box group (5) and the oiling roller group (6) are working.

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