Improved surface polishing device for loose and thin wood board processing

Abstract

The invention provides an improved surface polishing device for loose and thin wood board processing, which comprises a processing table, supporting legs, a bottom plate, a side plate, a water storage tank, a suction fan, a first motor, a threaded pipe, a movable adjusting buffer moving frame structure, a movable polishing cleaning frame structure and an adjustable limiting anti-falling frame structure, and the slidable bottom end supports the polishing frame structure, the shielding cleaning cover structure and the L-shaped supporting plate. The machining table, supporting legs, a connecting frame, a sliding block, a third motor, a rotating pipe, a second polishing roller and a multi-stage electric telescopic rod are arranged in a matched mode, so that the sliding block can be conveniently driven to move left and right through the multi-stage electric telescopic rod in the machining process; and in the moving process, a third motor drives a rotating pipe and a second polishing roller to rotate, meanwhile, the second polishing roller makes contact with the bottom end of the loose and thin wood board, and the purpose of polishing the bottom end of the loose and thin wood board is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of pine wood board processing equipment, and in particular relates to an improved surface polishing device for processing pine wood boards. Background Art

[0002] Pine wood boards are pine wood boards made of complete pine wood. Such boards are expensive. Wood boards are generally classified according to the actual name of the boards. Wood boards are materials frequently used in home decoration. With the continuous development of society and the continuous improvement of people's living standards, the floors in most families have been changed from tiles to wood boards. In the processing of wood boards, the wood boards need to be polished and waxed. The existing surface polishing device for processing pine wood boards includes a workbench, a support rod, a left side board, a right side board, a first telescopic member, a splint, a first motor, a threaded rod, a bearing, a limit rod, a moving block, a second telescopic member, a connecting frame, a rotating rod, a polishing roller, a second motor, a vacuum cleaner, an air pipe, and a suction hopper. The surface polishing device for processing pine wood boards is inconvenient to polish the upper and lower ends of the wood board at the same time during use, is inconvenient to wipe and clean after polishing, and cannot adjust the pressure buffer according to the rear end of the wood board during use. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an improved surface polishing device for processing pine wood boards. By setting a bottom end processing mechanism of the wood board during the processing process, the wood board processing efficiency is improved, and the polishing mechanism is improved during use to facilitate wiping and cleaning after polishing. In addition, by improving the moving mechanism during use, the pressure buffering adjustment during the polishing process is facilitated.

[0004] An improved surface polishing device for processing pine plywood comprises a processing table, wherein support legs are bolted to the four corners of the bottom end of the processing table; a bottom plate is bolted to the bottom between the support legs; side plates are bolted to the left and right sides of the upper end of the processing table; a water storage tank is bolted to the left side of the upper end of the bottom plate; a suction fan is bolted to the right side of the upper end of the bottom plate; a first motor is bolted to the middle position of the upper part of the outer wall of the side plate arranged on the right side; a threaded tube is bolted to the outer wall of the output shaft of the first motor, characterized in that a movable and adjustable buffer moving frame structure is slidably provided on the outer wall of the threaded tube; a movable and adjustable buffer moving frame structure is connected to the bottom end of the movable and adjustable buffer moving frame structure with a movable polishing and cleaning frame structure; An adjustable limit anti-slip frame structure is arranged on the right side of the movable polishing and cleaning frame structure; a slidable bottom end supporting polishing frame structure is arranged at the bottom of the front and rear ends of the processing table; a shielding cleaning cover structure is arranged at the upper end of the side plate; an L-shaped support plate is fixed by bolts on the bottom of the inner wall of the side plate; the movable and adjustable buffer movable frame structure includes a movable frame, and a threaded hole is opened in the middle position of the interior of the movable frame; T-shaped threaded rods are threadedly penetrated in the interior of the front and rear ends of the movable frame respectively; the bottom end of the T-shaped threaded rod is inserted in the middle position of the upper end of the pushing frame and a bearing is arranged at the connection; fixed springs are fixed in sequence from front to back in the bottom end of the pushing frame; guide rods are respectively penetrated in the interior of the front and rear ends of the pushing frame.

[0005] Preferably, the movable polishing and cleaning frame structure includes a polishing frame, a second motor is bolted to the lower front end of the polishing frame; a first polishing roller is arranged at the inner front end of the polishing frame; and a wiping roller is arranged at the inner rear end of the polishing frame.

[0006] Preferably, the adjustable limit anti-slip frame structure comprises an anti-slip frame, a sliding hole is provided in the middle position inside the anti-slip frame; a first bolt slides through the inside of the sliding hole; and a second bolt penetrates the middle of the bottom end of the anti-slip frame.

[0007] Preferably, the slidable bottom end supporting polishing frame structure includes a connecting frame, a sliding block is slidably arranged at the inner bottom end of the connecting frame; a third motor is bolted to the middle position of the front end of the sliding block arranged at the front end; a rotating tube is bolted to the outer wall of the output shaft of the third motor; a second polishing roller is bolted to the middle position of the outer wall of the rotating tube; and a multi-stage electric telescopic rod is bolted to the middle position of the upper right end of the connecting frame.

[0008] Preferably, the shieldable cleaning cover structure includes a connecting frame, and connecting rods are bolted to the four corners of the bottom end of the connecting frame; a shielding cover is bolted to the inner wall of the connecting frame; and a suction tube is threadedly penetrated through the middle position of the upper end of the shielding cover.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. In the present invention, the processing table, supporting legs, connecting frame, sliding block, third motor, rotating tube, second polishing roller and multi-stage electric telescopic rod are arranged in coordination with each other, which is conducive to driving the sliding block to move left and right through the multi-stage electric telescopic rod during the processing, and the third motor drives the rotating tube and the second polishing roller to rotate during the movement, and at the same time, the second polishing roller contacts the bottom end of the pine thin board, thereby achieving the purpose of polishing the bottom end of the pine thin board.

[0011] 2. In the present invention, the arrangement of the polishing frame, the second motor, the first polishing roller and the wiping roller is conducive to driving the first polishing roller and the wiping roller to rotate through the second motor during the polishing process, and the polishing work is realized when the pine and thin wood board passes through the bottom end of the first polishing roller, and then the pine and thin wood board passes through the bottom end of the wiping roller, so as to achieve the purpose of wiping and cleaning after polishing.

[0012] 3. In the present invention, the polishing frame, movable frame, threaded hole, T-threaded rod, pushing frame, fixed spring and guide rod are arranged in coordination with each other, which is conducive to adjusting the height of the pushing frame and increasing the pressure of the fixed spring at the same time through the threaded connection between the T-threaded rod and the movable frame during the polishing process, thereby facilitating the purpose of adjusting the pressure according to processing needs during the polishing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the movable and adjustable buffer movable frame structure of the present invention.

[0015] Figure 3 It is a structural schematic diagram of the movable polishing and cleaning frame structure of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the adjustable limiting anti-dropping frame structure of the present invention.

[0017] Figure 5 It is a structural schematic diagram of the slidable bottom end supporting polishing frame structure of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the shieldable cleaning cover structure of the present invention.

[0019] Figure 7 It is a cross-sectional view of the adjustable limit anti-dropping frame structure of the present invention.

[0020] In the figure:

[0021] 1. Processing table; 2. Support legs; 3. Bottom plate; 4. Side plate; 5. Water storage tank; 6. Suction fan; 7. First motor; 8. Threaded pipe; 9. Movable and adjustable buffer movable frame structure; 91. Moving frame; 92. Threaded hole; 93. T-shaped threaded rod; 94. Pushing frame; 95. Fixed spring; 96. Guide rod; 10. Movable polishing and cleaning frame structure; 101. Polishing frame; 102. Second motor; 103. First polishing roller; 104. Wiping roller; 11. Adjustable limit Anti-slip frame structure; 111, anti-slip frame; 112, sliding hole; 113, first bolt; 114, second bolt; 12, slidable bottom end supporting polishing frame structure; 121, connecting frame; 122, sliding block; 123, third motor; 124, rotating tube; 125, second polishing roller; 126, multi-stage electric telescopic rod; 13, shieldable cleaning cover structure; 131, connecting frame; 132, connecting rod; 133, shielding cover; 134, suction tube; 14, L-shaped support plate. DETAILED DESCRIPTION

[0022] Embodiment 1: The present invention is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2As shown, an improved surface polishing device for processing pine fine wood boards includes a processing table 1, support legs 2, a bottom plate 3, a side plate 4, a water storage tank 5, a suction fan 6, a first motor 7, a threaded tube 8, a movable and adjustable buffer movable frame structure 9, a movable polishing and cleaning frame structure 10, an adjustable limit anti-drop frame structure 11, a slidable bottom end support polishing frame structure 12 and a shielding cleaning cover structure 13 and an L-shaped support plate 14. The four corners of the bottom end of the processing table 1 are respectively bolted with support legs 2; the bottom between the support legs 2 is bolted with a bottom plate 3; the left and right sides of the upper end of the processing table 1 are respectively bolted A side plate 4 is fixed; a water storage tank 5 is bolted to the left side of the upper end of the bottom plate 3; a suction fan 6 is bolted to the right side of the upper end of the bottom plate 3; a first motor 7 is bolted to the middle position of the upper outer wall of the side plate 4 arranged on the right; a threaded pipe 8 is bolted to the outer wall of the output shaft of the first motor 7; a movable and adjustable buffer moving frame structure 9 is slidably provided on the outer wall of the threaded pipe 8; a movable polishing and cleaning frame structure 10 is connected to the bottom end of the movable and adjustable buffer moving frame structure 9; an adjustable limit anti-dropping frame structure 11 is provided on the right side of the movable polishing and cleaning frame structure 10; The bottom of the front and rear ends of the processing table 1 is provided with a slidable bottom end supporting polishing frame structure 12; the upper end of the side plate 4 is provided with a shielding cleaning cover structure 13; the inner wall bottom of the side plate 4 is bolted with an L-shaped support plate 14; the movable and adjustable buffer moving frame structure 9 includes a moving frame 91, a threaded hole 92, a T-shaped threaded rod 93, a pushing frame 94, a fixing spring 95 and a guide rod 96, and a threaded hole 92 is opened in the middle position of the moving frame 91; the front and rear ends of the moving frame 91 are respectively threaded with a T-shaped threaded rod 93; the bottom end of the T-shaped threaded rod 93 is inserted into A bearing is provided at the middle position of the upper end of the pushing frame 94 and at the connection; a fixing spring 95 is fixed in sequence from front to back inside the bottom end of the pushing frame 94; guide rods 96 are respectively passed through the front and rear ends of the pushing frame 94; when in use, the processing table 1 is fixed in a suitable position, and an external power supply and an external control device are connected using an external wire. After the equipment is fixed, the T-threaded rod 93 is rotated according to the thickness of the pine wood board to be polished as needed. The T-threaded rod 93 and the movable frame 91 are threadedly connected to facilitate the adjustment of the pressure of the fixing spring 95 during the polishing process to improve the polishing effect.

[0023] In this embodiment, combined with the Figure 3As shown, the movable polishing and cleaning frame structure 10 includes a polishing frame 101, a second motor 102, a first polishing roller 103 and a wiping roller 104. The second motor 102 is bolted to the lower front end of the polishing frame 101; the first polishing roller 103 is arranged at the inner front end of the polishing frame 101; the wiping roller 104 is arranged at the inner rear end of the polishing frame 101; then the first motor 7 drives the threaded tube 8 to rotate, and in the process of rotation, the threaded tube 8 penetrates the inside of the threaded hole 92, and then drives the movable frame 91 to move, and drives the polishing frame 101 to move, and in the moving At the same time, the second motor 102 is controlled to drive the first polishing roller 103 and the wiping roller 104 to rotate, and then the pine wood board to be polished is placed on the upper end of the L-shaped support plate 14 for pushing. In the process of pushing the pine wood board, the first polishing roller 103 contacts the upper end of the pine wood board, and then liquid wax or solid wax is applied to the surface of the first polishing roller 103, so that the first polishing roller 103 can perform polishing work in the process of rotating on the surface of the pine wood board. In the process of polishing, the upper end of the polishing frame 101 is pushed by the fixed spring 95 to increase the pressure on the first polishing roller 103 and the surface of the pine wood board to improve the polishing effect.

[0024] In this embodiment, combined with the Figure 4 As shown, the adjustable limit anti-slip frame structure 11 includes an anti-slip frame 111, a sliding hole 112, a first bolt 113 and a second bolt 114. The anti-slip frame 111 is provided with a sliding hole 112 in the middle position thereof; the sliding hole 112 is penetrated by a first bolt 113 for sliding inside; the bottom middle of the anti-slip frame 111 is penetrated by a second bolt 114; during the polishing process, the first bolt 113 is rotated according to the rear end of the pine wood board, and the distance from the left end of the first bolt 113 to the anti-slip frame 111 is adjusted. In the process of pushing the polishing frame 101 by the fixing spring 95, the limit work is realized after the cooperation of the anti-slip frame 111 and the first bolt 113, so as to prevent the pine wood board from being damaged due to excessive pressure during the polishing process.

[0025] In this embodiment, combined with the Figure 5As shown, the slidable bottom end supporting polishing frame structure 12 includes a connecting frame 121, a sliding block 122, a third motor 123, a rotating tube 124, a second polishing roller 125 and a multi-stage electric telescopic rod 126. The sliding block 122 is slidably arranged at the bottom end of the connecting frame 121; the third motor 123 is bolted to the middle position of the front end of the sliding block 122 arranged at the front end; the rotating tube 124 is bolted to the outer wall of the output shaft of the third motor 123; the second polishing roller 125 is bolted to the middle position of the outer wall of the rotating tube 124; the middle position of the upper right end of the connecting frame 121 The bolts are arranged preferably with a multi-stage electric telescopic rod 126; while pushing the pine wood board to move, the bottom end of the pine wood board is brought into contact with the upper end of the second polishing roller 125, and then liquid wax or fixed wax is applied to the surface of the second polishing roller 125, and the third motor 123 drives the rotating tube 124 and the second polishing roller 125 to rotate, and the second polishing roller 125 contacts the bottom end of the pine wood board during the rotation process and cooperates with the multi-stage electric telescopic rod 126 to drive the sliding block 122 to move left and right, and drives the second polishing roller 125 to move left and right during the movement, so as to achieve the purpose of polishing the bottom end of the pine wood board.

[0026] In this embodiment, combined with the Figure 6 As shown, the shieldable cleaning cover structure 13 includes a connecting frame 131, a connecting rod 132, a shielding cover 133 and a suction pipe 134, and the connecting rods 132 are bolted to the four corners of the bottom end of the connecting frame 131; the shielding cover 133 is bolted to the inner wall of the connecting frame 131; the suction pipe 134 is threadedly penetrated through the middle position of the upper end of the shielding cover 133; during the polishing process, the suction fan 6 is connected through the upper end pipeline of the suction pipe 134, and then the impurities generated during the polishing process are adsorbed and cleaned through the power generated by the suction fan 6, and the gas with impurities is transported to the inner bottom end of the water storage tank 5 during the adsorption and cleaning process, and the gas is filtered and cleaned by filling a proper amount of clean water in the water storage tank 5, thereby completing the surface polishing of the pine wood board.

[0027] In the present embodiment, specifically, the processing table 1 adopts a stainless steel table with a through hole in the middle position; the two ends of the threaded tube 8 respectively pass through the middle position of the upper end of the side panel 4 and a bearing is provided at the connection; the front and rear ends of the threaded tube 8 are respectively provided with stainless steel rods and the two ends of the stainless steel rods are respectively connected with the side panel 4 by bolts; the air outlet of the suction fan 6 is connected to the middle position of the water storage tank 5 through an inverted U-shaped tube.

[0028] In this embodiment, specifically, the guide rod 96 slides seamlessly through the front and rear ends of the moving frame 91 ; the pushing frame 94 is respectively arranged inside the front and rear ends of the moving frame 91 .

[0029] In this embodiment, specifically, the threaded tube 8 is threadedly penetrated through the interior of the threaded hole 92 ; the stainless steel rods provided at the front and rear ends of the threaded tube 8 are respectively and seamlessly slidably penetrated through the interior of the moving frame 91 .

[0030] In the present embodiment, specifically, the outer wall of the output shaft of the second motor 102 is bolted with a stainless steel tube, and bearings are provided at the connection between the front and rear ends of the stainless steel tube and the polishing frame 101; the first polishing roller 103 is bolted to the front of the outer wall of the stainless steel tube; and the wiping roller 104 is bolted to the back of the outer wall of the stainless steel tube.

[0031] In this embodiment, specifically, the bottom ends of the guide rod 96 are bolted to the front and rear of the upper end of the polishing frame 101 respectively; the bottom ends of the fixing spring 95 are respectively contacted with the front and rear of the upper end of the polishing frame 101.

[0032] In this embodiment, specifically, the anti-drop frame 111 is a stainless steel frame with an inverted triangle at the upper end; the outer walls of the first bolt 113 and the second bolt 114 are respectively sleeved with spring washers.

[0033] In this embodiment, specifically, the anti-slip frame 111 is respectively arranged in front of the right middle position and behind the right middle position of the moving frame 91; the first bolt 113 is respectively threadedly connected to the lower front part of the right middle position and the lower rear part of the right middle position of the moving frame 91; the second bolt 114 is respectively threadedly connected to the front part of the right middle position and the rear part of the right middle position of the polishing frame 101.

[0034] In this embodiment, specifically, the two ends of the rotating tube 124 respectively penetrate the inner middle position of the sliding block 122 and are provided with bearings at the connection; the multi-stage electric telescopic rod 126 respectively penetrates the upper middle position of the right end of the connecting frame 121; the left end of the multi-stage electric telescopic rod 126 is bolted to the middle position of the right end of the sliding block 122.

[0035] In the present embodiment, specifically, the connecting frame 121 is respectively arranged in front of and behind the bottom end of the processing table 1 and is respectively bolted to the upper part of the outer wall of the supporting leg 2; the upper end of the second polishing roller 125 passes through the through hole arranged in the middle position inside the processing table 1.

[0036] In this embodiment, specifically, the bottom ends of the connecting rod 132 are bolted to the front and rear of the upper ends of the side panels 4 respectively; the connecting frame 131 and the shielding cover 133 are arranged above the processing table 1; and the suction pipe 134 is connected to the suction fan 6.

[0037] Embodiment 2: Below in conjunction with attached Figure 1 To Attachment Figure 7As shown, the present invention is described in detail. When in use, the processing table 1 is fixed in a suitable position, and an external wire is used to connect the external power supply and the external control device. After the equipment is fixed, according to the thickness of the pine wood board to be polished, the T-shaped threaded rod 93 is rotated, and the threaded connection arrangement of the T-shaped threaded rod 93 and the movable frame 91 is arranged to facilitate the adjustment of the pressure of the fixed spring 95 during the polishing process to improve the polishing effect. Then, the first motor 7 drives the threaded tube 8 to rotate, and during the rotation, the threaded tube 8 is threadedly penetrated through the inside of the threaded hole 92, and then drives the movable frame 91 to move, and drives the polishing frame 101 to move, and at the same time of moving. The second motor 102 is controlled to drive the first polishing roller 103 and the wiping roller 104 to rotate, and then the pine wood board to be polished is placed on the upper end of the L-shaped support plate 14 for pushing. In the process of pushing the pine wood board, the first polishing roller 103 is made to contact the upper end of the pine wood board, and then liquid wax or solid wax is applied to the surface of the first polishing roller 103, so that the first polishing roller 103 can perform polishing work in the process of rotating the surface of the pine wood board. In the process of polishing, the upper end of the polishing frame 101 is pushed by the fixed spring 95 to increase the pressure between the first polishing roller 103 and the surface of the pine wood board to improve the polishing effect. In the process of polishing, according to the pine wood board, The rear end of the polishing frame 101 is rotated, the first bolt 113 is rotated, and the distance between the left end of the first bolt 113 and the anti-slip frame 111 is adjusted. In the process of pushing the polishing frame 101 by the fixing spring 95, the anti-slip frame 111 and the first bolt 113 cooperate to realize the limiting work, so as to prevent the pine and thin wood board from being damaged due to excessive pressure during the polishing process. While pushing the pine and thin wood board to move, the bottom end of the pine and thin wood board is brought into contact with the upper end of the second polishing roller 125, and then liquid wax or fixed wax is applied to the surface of the second polishing roller 125, and the third motor 123 drives the rotating tube 124 and the second polishing roller 125 to rotate. The bottom end of the thin wood board is touched and the multi-stage electric telescopic rod 126 is cooperated with to drive the sliding block 122 to move left and right, and in the process of movement, the second polishing roller 125 is driven to move left and right to achieve the purpose of polishing the bottom end of the thin wood board. During the polishing process, the upper end pipe of the suction tube 134 is connected to the suction fan 6, and then the power generated by the suction fan 6 is used to adsorb and clean the impurities generated in the polishing process. In the process of adsorption and cleaning, the gas with impurities is transported to the bottom end of the water storage tank 5, and the gas is filtered and cleaned by filling a proper amount of clean water in the water storage tank 5, thereby completing the surface polishing of the thin wood board.

[0038] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. An improved surface polishing device for processing pine wood boards, comprising a processing table (1), wherein support legs (2) are bolted to the four corners of the bottom end of the processing table (1); a bottom plate (3) is bolted to the bottom between the support legs (2); side plates (4) are bolted to the left and right sides of the upper end of the processing table (1); a water storage tank (5) is bolted to the left side of the upper end of the bottom plate (3); a suction fan (6) is bolted to the right side of the upper end of the bottom plate (3); a first motor (7) is bolted to the middle position of the upper outer wall of the side plate (4) arranged on the right side; a threaded pipe (8) is bolted to the outer wall of the output shaft of the first motor (7); characterized in that The outer wall of the threaded tube (8) in the improved surface polishing device for processing pine and fine wood boards is slidably provided with a movable and adjustable buffer movable frame structure (9); the bottom end of the movable and adjustable buffer movable frame structure (9) is connected to a movable polishing and cleaning frame structure (10); the right side of the movable polishing and cleaning frame structure (10) is provided with an adjustable limit anti-slip frame structure (11); the bottom of the front and rear ends of the processing table (1) is provided with a slidable bottom end supporting polishing frame structure (12); the upper end of the side plate (4) is provided with a shielding and cleaning cover structure (13); the bottom of the inner wall of the side plate (4) is bolted to the bottom. An L-shaped support plate (14) is fixed thereon; the movable and adjustable buffer movable frame structure (9) comprises a movable frame (91), a threaded hole (92) is provided at the middle position inside the movable frame (91); a T-shaped threaded rod (93) is threadedly penetrated inside the front and rear ends of the movable frame (91); the bottom end of the T-shaped threaded rod (93) is inserted into the middle position of the upper end of the pushing frame (94) and a bearing is provided at the connection; a fixed spring (95) is fixed in sequence inside the bottom end of the pushing frame (94) from front to back; and a guide rod (96) is respectively penetrated inside the front and rear ends of the pushing frame (94).

2. The improved surface polishing device for processing pine wood boards as claimed in claim 1, characterized in that: The movable polishing and cleaning frame structure (10) comprises a polishing frame (101), a second motor (102) being fixed by bolts at the lower front end of the polishing frame (101); a first polishing roller (103) is arranged at the inner front end of the polishing frame (101); and a wiping roller (104) is arranged at the inner rear end of the polishing frame (101).

3. The improved surface polishing device for processing pine wood boards as claimed in claim 1, characterized in that: The adjustable limit anti-slip frame structure (11) comprises an anti-slip frame (111), a sliding hole (112) is provided in the middle position inside the anti-slip frame (111); a first bolt (113) slides through the inside of the sliding hole (112); and a second bolt (114) penetrates the middle of the bottom end of the anti-slip frame (111).

4. The improved surface polishing device for processing pine wood boards as claimed in claim 1, characterized in that: The slidable bottom end supporting polishing frame structure (12) comprises a connecting frame (121), the inner bottom end of the connecting frame (121) is slidably provided with a sliding block (122); a third motor (123) is bolted to the middle position of the front end of the sliding block (122) arranged at the front end; a rotating tube (124) is bolted to the outer wall of the output shaft of the third motor (123); a second polishing roller (125) is bolted to the middle position of the outer wall of the rotating tube (124); and a multi-stage electric telescopic rod (126) is bolted to the middle position of the upper right end of the connecting frame (121).

5. The improved surface polishing device for processing pine wood boards as claimed in claim 2, characterized in that: The shieldable cleaning cover structure (13) comprises a connecting frame (131), and connecting rods (132) are respectively bolted to the four corners of the bottom end of the connecting frame (131); a shielding cover (133) is bolted to the inner wall of the connecting frame (131); and a suction pipe (134) is threadedly penetrated at the middle position of the upper end of the shielding cover (133).

6. The improved surface polishing device for processing pine wood boards as claimed in claim 1, characterized in that: The processing table (1) is a stainless steel table with a through hole in the middle of the interior; the two ends of the threaded tube (8) respectively penetrate the middle of the upper end of the side plate (4) and are provided with bearings at the connection; the front and rear ends of the threaded tube (8) are respectively provided with stainless steel rods and the two ends of the stainless steel rods are respectively connected to the side plate (4) by bolts; the air outlet of the suction fan (6) is connected to the middle of the interior of the water storage tank (5) through an inverted U-shaped tube.

7. The improved surface polishing device for processing pine wood boards as claimed in claim 1, characterized in that: The threaded tube (8) is threadedly penetrated into the interior of the threaded hole (92); the stainless steel rods arranged at the front and rear ends of the threaded tube (8) respectively slide seamlessly through the interior of the moving frame (91).

8. The improved surface polishing device for processing pine wood boards as claimed in claim 2, characterized in that: The bottom ends of the guide rods (96) are bolted to the front and rear ends of the upper ends of the polishing frame (101) respectively; the bottom ends of the fixing springs (95) are contacted to the front and rear ends of the upper ends of the polishing frame (101) respectively.

9. The improved surface polishing device for processing pine wood boards as claimed in claim 3, characterized in that: The anti-dropping frame (111) is respectively arranged at the front of the right middle position and the rear of the right middle position of the moving frame (91); the first bolt (113) is respectively threadedly connected to the lower part of the front of the right middle position and the lower part of the rear of the right middle position of the moving frame (91); and the second bolt (114) is respectively threadedly connected to the front of the right middle position and the rear of the right middle position of the polishing frame (101).

10. The improved surface polishing device for processing pine wood boards as claimed in claim 4, characterized in that: The connecting frame (121) is respectively arranged in front of and behind the bottom end of the processing table (1) and is respectively bolted to the upper part of the outer wall of the supporting leg (2); the upper end of the second polishing roller (125) passes through a through hole arranged in the middle position inside the processing table (1).

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