Sanding machine for medium-density fiberboard production

Abstract

The utility model discloses a sanding machine for medium-density fiberboard production, and relates to the technical field of sanding machines. Comprising a lathe, conveying rollers distributed in an array mode are installed at the top of the lathe, a fixing frame is fixedly welded to the position, close to the center, above the lathe, abrasive belt wheels distributed symmetrically are installed at the top end of the fixing frame, and abrasive belts are arranged on the outer sides of the abrasive belt wheels; a limiting mechanism for limiting the medium-density fiberboard is arranged above the lathe and located on the inner side of the fixing frame, the limiting mechanism comprises limiting clamping plates which are symmetrically distributed, and vertical guide rails are arranged at the tops of the limiting clamping plates and located on the two sides of the fixing frame; an adjusting mechanism for adjusting and controlling the abrasive belt is arranged on the inner side of the fixing frame and comprises a lifting frame, a transverse guide rail and an adjusting wheel. The surface of the medium-density fiberboard is subjected to large-area polishing through the abrasive belt in the vertical direction of the medium-density fiberboard, the machining efficiency of the medium-density fiberboard is improved, and it is guaranteed that the polished medium-density fiberboard is uniform in thickness and smooth and flat in surface.

Description

Technical Field

[0001] The utility model relates to the technical field of sanding machines, in particular to a sanding machine used for the production of medium-density fiberboards. Background Art

[0002] In the production process of medium-density fiberboard, the hot-pressed boards usually have certain thickness tolerances and surface unevenness, and sometimes may have indentations or other defects. The board surface needs to be sanded and polished by a sander to eliminate these defects.

[0003] In the prior art, there is a sanding machine for medium-density fiberboard production with a publication number of CN213319236U, which includes a workbench, a semi-enclosed frame fixedly mounted on one side of the workbench, a placement slot fixedly mounted in the middle of one side of the workbench, a plurality of through holes opened on the bottom surface of the placement slot, and a material storage box fixedly mounted in the middle of the other side of the workbench. This solution generates an adsorption force through the first rotating motor and the rotating shaft, which adsorbs the debris on the placement slot from the plurality of through holes opened on the bottom surface of the placement slot, does not require manual cleaning, does not affect the sanding speed, and effectively reduces the workload of workers.

[0004] However, the above scheme still has some shortcomings. For example, the medium density fiberboard after production usually has a large surface area. The above scheme uses a grinding head to process the medium density fiberboard, and can only grind and polish part of the medium density fiberboard at the same time. The processing efficiency of the surface of the medium density fiberboard is low, and after processing, the medium density fiberboard will still have uneven local flatness, affecting the overall effect of the medium density fiberboard. In view of this, the utility model proposes a sanding machine for the production of medium density fiberboard. Utility Model Content

[0005] The utility model aims to provide a sanding machine for medium density fiberboard production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a sanding machine for medium-density fiberboard production, comprising a lathe, the top of which is equipped with an array of conveying rollers, a fixing frame is welded and fixed above the lathe and near the center, a symmetrically distributed abrasive belt wheels are installed on the top of the fixing frame, and an abrasive belt is arranged on the outside of the abrasive belt wheels;

[0007] A limiting mechanism for limiting the position of the medium density fiberboard is provided above the lathe and located on the inner side of the fixing frame, and the limiting mechanism includes symmetrically distributed limiting clamps, and vertical guide rails are provided on the top of the limiting clamps and located on both sides of the fixing frame;

[0008] An adjusting mechanism for adjusting the sanding belt is provided on the inner side of the fixing frame, and the adjusting mechanism comprises a lifting frame, a transverse guide rail and an adjusting wheel. The rotating shaft of the adjusting wheel extends to the inner side of the vertical guide rail and the transverse guide rail, and is movably connected to the vertical guide rail and the transverse guide rail respectively.

[0009] Preferably, the rotating shaft of the conveying roller is rotatably connected to the side wall of the lathe, and the conveying rollers are driven by gears and chains. A support plate is welded and fixed on the top of the lathe and between adjacent conveying rollers.

[0010] Furthermore, a collection box is provided at the bottom of the lathe and below the fixing frame, and the collection box is snap-fitted with the bottom of the lathe.

[0011] Preferably, the rotating shaft of the grinding belt wheel passes through the fixed frame and is rotatably connected to the fixed frame, a first motor coaxially driving with the grinding belt wheel is installed on the outer side wall of the fixed frame, and a protective plate is installed on the outer side of the fixed frame.

[0012] Furthermore, left-right symmetrical sliding rods are installed on the inner side of the lathe and near the edge, and the two ends of the limit clamp are respectively slidably connected to the sliding rods. A bidirectional screw is provided between the left and right sliding rods. The bidirectional screw is respectively threadedly connected to the limit clamps on the front and rear sides, and the end of the bidirectional screw is rotatably connected to the side wall of the lathe. A second motor coaxially driven with the bidirectional screw is installed inside the lathe.

[0013] Preferably, the lifting frame is arranged on the inner side of the sanding belt, the transverse guide rails are symmetrically arranged at the left and right ends of the lifting frame and are welded and fixed to the lifting frame, and symmetrically distributed guide grooves are opened on the transverse guide rails near the edge, and the rotating shaft of the adjusting wheel moves laterally along the guide grooves.

[0014] Furthermore, a fixing frame is provided above the lifting frame and is welded and fixed to the inner wall of the fixing frame. A hydraulic cylinder is installed on the top of the fixing frame and near the four corners. The piston rod of the hydraulic cylinder is fixedly connected to the lifting frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The sanding machine used for the production of medium-density fiberboard is provided with a conveying roller, a sanding belt and a limit mechanism. During processing, the sanding belt can be used to sand a large area of ​​the surface of the medium-density fiberboard along the vertical direction, thereby improving the processing efficiency of the medium-density fiberboard and ensuring that the thickness of the medium-density fiberboard after sanding is uniform and the surface is smooth and flat.

[0017] At the same time, through the cooperation of the limiting mechanism and the adjusting mechanism, the adjusting wheel can be adjusted according to the width of the medium density fiberboard, and then the bottom end of the sanding belt can be regulated to ensure that the sanding belt is in uniform contact with the surface of the medium density fiberboard during the sanding process, which facilitates the processing of the medium density fiberboard and effectively improves the processing effect of the surface of the medium density fiberboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the lathe structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0021] Figure 4 This is a cross-sectional view of the internal structure of the fixing frame of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the regulating mechanism of the utility model.

[0023] In the figure: 1. lathe; 11. conveyor roller; 12. support plate; 13. collecting box; 2. fixed frame; 21. abrasive belt wheel; 22. abrasive belt; 23. first motor; 24. protective plate; 3. limit clamp; 31. vertical guide rail; 32. slide rod; 33. bidirectional screw; 34. second motor; 4. lifting frame; 41. transverse guide rail; 42. guide groove; 43. adjusting wheel; 5. fixed frame; 51. hydraulic cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the production process of medium-density fiberboard, the hot-pressed boards usually have certain thickness tolerances and surface unevenness, and sometimes may have indentations or other defects. The board surface needs to be sanded and polished by a sanding machine to eliminate these defects and make the board thickness uniform and the surface smooth and flat. The sanding machine for medium-density fiberboard production provided by the utility model is mainly used for continuous sanding of medium-density fiberboard. When in use, the limiting mechanism and the adjusting mechanism need to be adjusted in advance according to the width of the medium-density fiberboard, so as to ensure that the sanding belt fits evenly with the surface of the medium-density fiberboard and improve the uniformity during sanding.

[0026] like Figure 1 - Figure 5 As shown, the utility model provides a technical solution: a sanding machine for medium-density fiberboard production, comprising a lathe 1, a conveying roller 11 distributed in an array is installed on the top of the lathe 1, a fixing frame 2 is welded and fixed above and near the center of the lathe 1, a symmetrically distributed abrasive belt wheels 21 are installed on the top of the fixing frame 2, and an abrasive belt 22 is arranged on the outer side of the abrasive belt wheel 21;

[0027] A limiting mechanism for limiting the position of the medium density fiberboard is provided above the lathe 1 and located on the inner side of the fixing frame 2. The limiting mechanism includes symmetrically distributed limiting clamps 3. Vertical guide rails 31 are provided on the top of the limiting clamps 3 and located on both sides of the fixing frame 2.

[0028] An adjusting mechanism for regulating the sanding belt 22 is provided on the inner side of the fixed frame 2, and the adjusting mechanism includes a lifting frame 4, a transverse guide rail 41 and an adjusting wheel 43. The rotating shaft of the adjusting wheel 43 extends to the inner side of the vertical guide rail 31 and the transverse guide rail 41, and is movably connected to the vertical guide rail 31 and the transverse guide rail respectively.

[0029] During the production of medium-density fiberboard, the produced medium-density fiberboard is placed on the conveying roller 11, and then the limiting clamp 3 is adjusted to make the limiting clamp 3 contact the edge of the medium-density fiberboard, thereby limiting the medium-density fiberboard to prevent deviation during processing. Afterwards, the adjusting wheel 43 is driven to move by the adjusting mechanism, so that the adjusting wheel 43 adjusts the bottom of the sanding belt 22 to ensure that the bottom of the sanding belt 22 is evenly fitted with the upper surface of the medium-density fiberboard, thereby improving the grinding effect of the medium-density fiberboard, and during the grinding process, due to the limitation of the limiting clamp 3, the sanding belt 22 can be prevented from driving the medium-density fiberboard to move and affecting the grinding uniformity.

[0030] like Figure 2 As shown, the rotating shaft of the conveying roller 11 is rotatably connected to the side wall of the lathe 1, and the transmission is performed between each conveying roller 11 through gears and chains. A support plate 12 is welded and fixed on the top of the lathe 1 and located between adjacent conveying rollers 11. A third motor coaxially transmitted with the conveying roller 11 is installed inside the lathe 1. When the third motor is running, the transmission is performed through gears and chains, so that the conveying roller 11 can rotate and the medium-density fiberboard can be continuously transported to the right. At the same time, the support plate 12 provides auxiliary support for the medium-density fiberboard, which can improve the stability of the medium-density fiberboard during transportation.

[0031] A collecting box 13 is provided at the bottom of the lathe 1 and below the fixed frame 2. The collecting box 13 is snap-fitted with the bottom of the lathe 1 so that the collecting box 13 can be freely disassembled at the top of the lathe 1. When processing the medium-density fiberboard, the generated debris will fall into the collecting box 13 through the gap between the conveying roller 11 and the support plate 12 for collection. In addition, a fan structure can be installed inside the collecting box 13 to generate a downward airflow on the inner side of the collecting box 13, and the debris is driven into the collecting box 13 by the airflow, thereby enhancing the debris collection effect.

[0032] like Figure 3 As shown, a left-right symmetrical sliding rod 32 is installed on the inner side of the lathe 1 and near the edge, and the two ends of the limit clamp 3 are respectively slidably connected to the sliding rod 32, and a bidirectional screw 33 is provided between the sliding rods 32 on the left and right sides. The bidirectional screw 33 is respectively threadedly connected to the limit clamp 3 on the front and rear sides, and the end of the bidirectional screw 33 is rotatably connected to the side wall of the lathe 1, and a second motor 34 coaxially driven with the bidirectional screw 33 is installed inside the lathe 1.

[0033] When the second motor 34 is running, it can drive the bidirectional screw 33 to rotate, so that the limiting clamps 3 on the front and rear sides can move relative to each other, so that the limiting clamps 3 can be adjusted to the two sides of the medium density fiberboard for limiting, which is convenient for processing the medium density fiberboard. At the same time, the limiting clamps 3 can drive the vertical guide rails 31 to move, so that the vertical guide rails 31 drive the adjusting wheels 43 to move along the transverse guide rails 41, so as to synchronously adjust the distance between the adjusting wheels 43 on the front and rear sides, which is convenient for subsequent adjustment of the sanding belt 22.

[0034] like Figure 4 and 5 As shown, the rotating shaft of the grinding belt wheel 21 passes through the fixed frame 2 and is rotatably connected to the fixed frame 2. A first motor 23 that is coaxially driven with the grinding belt wheel 21 is installed on the outer wall of the fixed frame 2. A protective plate 24 is installed on the outer side of the fixed frame 2. When the first motor 23 drives the grinding belt wheel 21 to rotate, the grinding belt 22 can grind and polish the surface of the medium-density fiberboard. During use, the protective plate 24 protects the outer side of the grinding belt 22 to prevent users from being injured by contact with the grinding belt 22.

[0035] The lifting frame 4 is arranged on the inner side of the sanding belt 22, and the transverse guide rails 41 are symmetrically arranged at the left and right ends of the lifting frame 4 and are welded and fixed to the lifting frame 4. Symmetrically distributed guide grooves 42 are opened on the transverse guide rails 41 and near the edge. The rotating shaft of the adjusting wheel 43 moves laterally along the guide grooves 42, and another adjusting wheel 43 is installed in the middle of the adjusting wheels 43 on the front and rear sides of the transverse guide rails 41. The three groups of adjusting wheels 43 cooperate with each other to enhance the adjustment effect of the sanding belt 22. While improving the contact effect between the sanding belt 22 and the surface of the medium-density fiberboard, it is effectively prevented that the sanding belt 22 is loosened to affect the grinding effect.

[0036] A fixing frame 5 is provided above the lifting frame 4 and is welded and fixed to the inner wall of the fixing frame 2 . A hydraulic cylinder 51 is installed on the top of the fixing frame 5 and near the four corners. The piston rod of the hydraulic cylinder 51 is fixedly connected to the lifting frame 4 .

[0037] When the hydraulic cylinder 51 operates to drive the lifting frame 4 to move downward, it can drive the adjusting wheels 43 on the front and rear sides to move downward along the vertical guide rails 31. Through the cooperation between the vertical guide rails 31 and the transverse guide rails 41, the adjusting wheels 43 can be adjusted according to the width of the medium-density fiberboard, and then the bottom end of the sanding belt 22 can be regulated to improve the contact effect between the sanding belt 22 and the surface of the medium-density fiberboard, thereby facilitating the processing of the medium-density fiberboard.

[0038] Working principle: First, place the medium density fiberboard on the conveying roller 11, then operate the second motor 34 to drive the bidirectional screw 33 to rotate, so that the limiting clamp 3 slides along the slide bar 32 and contacts the edge of the medium density fiberboard for limiting. At the same time, the limiting clamp 3 drives the vertical guide rail 31 to move, so that the adjusting wheel 43 slides along the guide groove 42. Then, operate the hydraulic cylinder 51 to drive the lifting frame 4 to move downward, so that the adjusting wheel 43 slides along the vertical guide rail 31 and squeezes the inner side of the sanding belt 22, so that the surface of the sanding belt 22 fits the medium density fiberboard, ensuring that the sanding belt 22 can evenly grind the surface of the medium density fiberboard.

[0039] Furthermore, the conveying roller 11 continuously conveys the medium-density fiberboard to one side of the fixed frame 2. At the same time, the first motor 23 is operated to drive the sanding wheel 21 to rotate, so that the sanding belt 22 grinds and polishes the surface of the medium-density fiberboard. The debris generated during the processing falls into the collection box 13 through the gap between the conveying roller 11 and the support plate 12 for collection.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. Sanding machines, including lathes, for the production of medium density fiberboard, characterized in that: The top of the lathe is equipped with conveying rollers distributed in an array, a fixing frame is welded and fixed above and near the center of the lathe, a symmetrically distributed abrasive belt wheels are installed on the top of the fixing frame, and an abrasive belt is arranged on the outside of the abrasive belt wheels; A limiting mechanism for limiting the position of the medium density fiberboard is provided above the lathe and located on the inner side of the fixing frame, and the limiting mechanism includes symmetrically distributed limiting clamps, and vertical guide rails are provided on the top of the limiting clamps and located on both sides of the fixing frame; An adjusting mechanism for adjusting the sanding belt is provided on the inner side of the fixing frame, and the adjusting mechanism comprises a lifting frame, a transverse guide rail and an adjusting wheel. The rotating shaft of the adjusting wheel extends to the inner side of the vertical guide rail and the transverse guide rail, and is movably connected to the vertical guide rail and the transverse guide rail respectively.

2. The sanding machine for medium density fiberboard production according to claim 1, characterized in that: The rotating shaft of the conveying roller is rotatably connected to the side wall of the lathe, and the conveying rollers are driven by gears and chains. A support plate is welded and fixed on the top of the lathe and located between adjacent conveying rollers.

3. The sanding machine for medium density fiberboard production according to claim 1, characterized in that: A collection box is provided at the bottom of the lathe and below the fixing frame, and the collection box is snap-fitted with the bottom of the lathe.

4. The sanding machine for medium density fiberboard production according to claim 1, characterized in that: The rotating shaft of the grinding belt wheel passes through the fixed frame and is rotatably connected to the fixed frame. A first motor coaxially driving with the grinding belt wheel is installed on the outer wall of the fixed frame, and a protective plate is installed on the outer side of the fixed frame.

5. The sanding machine for medium density fiberboard production according to claim 1, characterized in that: A left-right symmetrical sliding rod is installed on the inner side of the lathe and near the edge. The two ends of the limit clamp are respectively slidably connected to the sliding rod. A bidirectional screw is provided between the left and right sliding rods. The bidirectional screw is respectively threadedly connected to the limit clamps on the front and rear sides, and the end of the bidirectional screw is rotatably connected to the side wall of the lathe. A second motor coaxially transmitted with the bidirectional screw is installed inside the lathe.

6. The sanding machine for medium density fiberboard production according to claim 1, characterized in that: The lifting frame is arranged on the inner side of the sanding belt, the transverse guide rails are symmetrically arranged on the left and right ends of the lifting frame and are welded and fixed to the lifting frame, symmetrically distributed guide grooves are opened on the transverse guide rails near the edges, and the rotating shaft of the regulating wheel moves laterally along the guide grooves.

7. The sanding machine for medium density fiberboard production according to claim 6, characterized in that: A fixing frame is provided above the lifting frame and is welded and fixed to the inner wall of the fixing frame. A hydraulic cylinder is installed on the top of the fixing frame and near the four corners. The piston rod of the hydraulic cylinder is fixedly connected to the lifting frame.

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