Sanding machine

Abstract

The utility model discloses a sanding machine which comprises a machine frame, a conveyor line; the multiple sanding mechanisms are assembled on the rack and are arranged at intervals in the plate conveying direction; the sanding mechanism comprises a first frame body and a second frame body opposite to the first frame body; the two ends of the thickness fixing roller are rotationally mounted on the first frame body and the second frame body; the driving mechanism is in transmission connection with one end of the thickness determining roller; the tensioning roller is arranged above the thickness determining roller; the swinging component is arranged below the tensioning roller, and the two ends of the swinging component are connected with the tensioning roller; the swinging mechanism is assembled on the first frame body, connected with the swinging component and used for driving the swinging component to drive the tensioning roller to swing; the abrasive belt is wound on the thickness fixing roller and the tensioning roller; wherein the mesh number of the plurality of sanding belts wound on the plurality of sanding mechanisms is gradually increased in the plate conveying direction. By means of the sanding machine, fine treatment of the surface of the plate can be completed at a time.

Description

Technical Field

[0001] This utility model belongs to the field of sanding machine technology, specifically, it relates to an improvement in the structure of a sanding machine with multiple sanding mechanisms. Background Technology

[0002] A wide-belt grinding machine mainly consists of a frame, two rollers mounted on the upper and lower sides of the frame, a drive motor fixed to the end of one roller on the frame to drive its rotation, and an abrasive belt sleeved between the two rollers and rotating synchronously with them. During operation, the rollers rotate, driving the abrasive belt to rotate, thus grinding the workpiece against the belt. Grinding of sheet metal is primarily achieved through a single sanding mechanism. To achieve different levels of fineness in sanding the surface of the sheet metal, it is necessary to disassemble and replace the abrasive belt with one of different grits. This results in poor sanding precision for sheet metal and requires frequent belt replacements to meet varying fineness requirements. To achieve a finer surface finish, multiple grinding operations with different grits of abrasive belt are required, which is time-consuming, labor-intensive, and reduces production efficiency.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0004] This invention addresses the technical problems of existing sanders, such as their single sanding mechanism and poor sanding effect on boards, by proposing a new type of sander that can achieve fine grinding treatment of board surfaces in one pass.

[0005] To achieve the above-mentioned utility model / design objectives, the present utility model adopts the following technical solution:

[0006] A sander includes:

[0007] frame;

[0008] And a conveyor line arranged on the frame for conveying the sheet metal, with a feed end and a discharge end formed at both ends;

[0009] Multiple sanding mechanisms are provided, assembled on the frame and arranged at intervals along the conveying direction of the sheet metal;

[0010] The sanding mechanism includes:

[0011] First frame;

[0012] And a second frame positioned opposite the first frame;

[0013] The thickness roller is rotatably mounted at both ends onto the first and second frames;

[0014] A drive mechanism is connected to one end of the thickness roller and is used to drive the thickness roller to rotate.

[0015] A tensioning roller is positioned above the thickness-fixing roller;

[0016] A swinging component is arranged below the tension roller, with both ends connected to the tension roller;

[0017] The swing mechanism is assembled onto the first frame and connected to the swing component, driving the swing component to swing the tension roller.

[0018] A sanding belt is wound around the thickness roller and the tension roller;

[0019] Among them, the mesh size of the multiple sanding belts wound on the multiple sanding mechanisms gradually increases along the conveying direction of the board;

[0020] The vacuum unit includes:

[0021] Multiple dust hoods are arranged vertically on the frame. Each dust hood corresponds to a sanding mechanism and has a dust suction section for sucking up the dust generated by the sanding mechanism.

[0022] A cleaning component, located at the discharge end of the frame and connected to a dust collection device via piping, includes:

[0023] A cleaning hood is formed within which:

[0024] A variable-diameter cavity, wherein the inner diameter of the variable-diameter cavity gradually decreases from top to bottom, and an opening is formed at its bottom;

[0025] A sealing element is provided at the opening, and a narrow entrance is formed at the sealing element;

[0026] A guide, provided on the cleaning hood on one side of the opening, is used to guide airflow into the narrow inlet.

[0027] A baffle is disposed on the cleaning hood on the other side of the opening, opposite to the guide member, to block the airflow.

[0028] In some embodiments of this application, the swing mechanism includes:

[0029] The swing seat is assembled onto the first frame.

[0030] And two power elements mounted on the swing seat, each power element including a telescopic action part, the telescopic action parts of the two power elements are arranged in opposite directions;

[0031] The first connecting assembly includes two first connecting members arranged opposite to each other, and the two first connecting members are respectively connected to the telescopic power part and the swinging member of the two power elements;

[0032] When the power extension part of one power element extends, the power extension part of the other power element retracts.

[0033] In some embodiments of this application, the two ends of the swing member are connected to the tension roller via a second connecting member, and the tension roller includes:

[0034] The inner tensioning roller has a flattened portion at its end.

[0035] The connecting column is vertically inserted and fixed inside the swinging component at one end, and locked to the flat part with screws at the other end.

[0036] In some embodiments of this application, the following are also included:

[0037] A lifting mechanism, located below the swinging component, is used to lift the swinging component and the tensioning roller;

[0038] A lifting beam is used to assemble the lifting mechanism, and its two ends are respectively connected and fixed to the first frame and the second frame.

[0039] The lifting mechanism includes a lifting cylinder, which includes a lifting cylinder rod. The lifting cylinder rod is connected to the swinging component. When the swinging component swings in the horizontal plane, the lifting cylinder rod can rotate relative to the cylinder body.

[0040] Some embodiments of this application include:

[0041] Dust blowing mechanism, including:

[0042] Dust blower;

[0043] And the dust blowing drive component mounted on the dust blowing frame;

[0044] The dust blowing pipe is connected to the dust blowing drive and can reciprocate under the drive of the dust blowing drive. The dust blowing pipe is provided with an air inlet and multiple air outlets arranged along its length, with the multiple air outlets facing the sanding belt.

[0045] In some embodiments of this application, a guide limiting member is provided at the feed end of the frame to facilitate the conveying of the sheet metal. The guide limiting member has a guide portion and a positioning portion connected to the guide portion.

[0046] Some embodiments of this application include:

[0047] Multiple pressure roller assemblies are arranged between adjacent sanding mechanisms, and each pressure roller assembly includes a pressure roller seat;

[0048] Each sanding mechanism has a pressure shoe assembly on both sides, the pressure shoe assembly comprising:

[0049] Press the sole of the boot;

[0050] And the pressure shoe connecting plate assembly, which is connected and fixed to the pressure roller seat corresponding to its position;

[0051] A pressure shoe reinforcing plate assembly is connected between the pressure shoe connecting plate assembly and the pressure shoe bottom plate assembly.

[0052] In some embodiments of this application, a suspension beam is provided above the frame;

[0053] The pressure roller seat is provided with a support beam, the bottom of the dust collection hood is fixedly connected to the support beam, and the top is fixedly connected to the suspension beam.

[0054] Compared with the prior art, the advantages and positive effects of this utility model are:

[0055] In this invention, multiple sanding mechanisms are arranged such that the mesh size of the sanding belts wound around them gradually increases along the conveying direction of the board. This allows for sequential grinding of the conveyed board from coarse to fine. Through the multi-layer sequential coarse-to-fine grinding method, the fine processing requirements of the board surface are achieved in one go, improving the surface processing accuracy of the board. Furthermore, there is no need to change the sanding belts during the processing, and the board is processed in one go, resulting in high processing efficiency.

[0056] In addition, by arranging multiple dust collection hoods corresponding to each sanding mechanism, dust in the area where each sanding mechanism is located can be adsorbed. Cleaning components are set at the end of the entire conveyor line to thoroughly adsorb dust on the board after multiple sanding processes. This not only ensures the cleanliness of the working environment of multiple sanding mechanisms but also ensures the cleanliness of the board after processing.

[0057] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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 based on these drawings without creative effort.

[0059] Figure 1This is a three-dimensional structure of an embodiment of the sander proposed in this utility model. Figure 1 ;

[0060] Figure 2 for Figure 1 Enlarged view of a portion at point A;

[0061] Figure 3 This is a three-dimensional structure of an embodiment of the sander proposed in this utility model. Figure 2 ;

[0062] Figure 4 for Figure 1 A magnified view of section B;

[0063] Figure 5 This is a three-dimensional structure of an embodiment of the sander proposed in this utility model. Figure 3 ;

[0064] Figure 6 yes Figure 5 A magnified view of a portion at point C;

[0065] Figure 7 This is a three-dimensional structure of an embodiment of the sander proposed in this utility model. Figure 4 ;

[0066] Figure 8 This is a front view of one embodiment of the sanding machine proposed in this utility model.

[0067] In the diagram, 100 is the frame; 110 is the base frame; 120 is the top frame; 121 is the suspension beam; 130 is the side component of the frame; 200 is the conveyor line; 300 is the sanding mechanism; 310 is the first frame; 311 is the hanging bracket; 312 is the extension plate; 313 is the frame connector; 320 is the second frame; 330 is the thickness roller; 340 is the drive mechanism; 351 is the flat section; 360 is the sanding belt; 410 is the swing component; 420 is the swing mechanism; 421 is the swing seat; 422 is the telescopic action section; 423 is the first connecting component; 424 is the second connecting component; 500 is the dust suction hood; 511 is the dust suction section; 600 is the cleaning component; 6 10. Cleaning hood; 611. Variable diameter cavity; 612. Opening; 620. Sealing component; 621. Narrow inlet; 630. Guide component; 640. Partition component; 710. Tensioning motor; 720. Tensioning reducer; 730. Lifting mechanism; 740. Lifting beam; 750. Assembly base; 810. Dust blowing pipe; 811. Air outlet; 820. Guide limit component; 821. Guide section; 822. Positioning section; 830. Dust blowing drive component; 910. Pressure roller assembly; 911. Pressure roller seat; 912. Support beam; 920. Pressure shoe bottom plate; 931. First connecting plate; 932. Second connecting plate; 940. Pressure shoe reinforcing plate. Detailed Implementation

[0068] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0069] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this utility model.

[0070] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of the embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0071] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0072] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0073] In some embodiments of this application, a sanding machine is proposed, comprising:

[0074] 100 racks;

[0075] The frame 100 includes a base frame 110 and a top frame 120, and a connecting column is provided between the base frame 110 and the top frame 120.

[0076] An installation space is formed between the base frame 110, the top frame 120, and the connecting column.

[0077] A conveyor line 200 is provided on the frame 100 for conveying the sheet metal. The conveyor line 200 is specifically mounted on the base frame 110. The conveyor line 200 can adopt an existing conveyor line 200 structure for forward conveying the sheet metal.

[0078] The conveyor line 200 has a feeding end and a discharging end at both ends. The sheet material enters the conveyor line 200 from the feeding end and exits from the discharging end.

[0079] Doors that can be easily opened or closed are provided on the sides of the base frame 110 and the top frame 120 to facilitate internal maintenance.

[0080] The installation space is located above the conveyor line 200, and a sanding mechanism 300 is arranged in the installation space. The sanding mechanism 300 is mainly used to sand the board.

[0081] Multiple sanding units 300 are arranged in a spaced-out manner along the conveying direction of the sheet material.

[0082] In some embodiments, the sanding mechanism 300 is provided in a number of 7 or more.

[0083] In some embodiments, seven sanding mechanisms are provided along the board conveying direction, and the mesh size range of the sanding belt on each sanding mechanism is as follows: 100-120 mesh, 120-150 mesh, 150-180 mesh, 180-240 mesh, 240-320 mesh, 320-400 mesh, and above 400 mesh.

[0084] Multiple sanding units 300 are arranged at a certain distance to avoid interference between them during operation.

[0085] The sanding mechanism 300 includes a first frame 310 and a second frame 320.

[0086] The first frame 310 includes a bracket 311 and a frame connector 313 connected to the bracket 311. The frame connector 313 is fixed on the base frame 110.

[0087] An extension plate 312 is provided on the bracket 311, and a notch is provided on the extension plate 312. A screw is provided on the frame connector 313, and the screw extends out from the notch through the notch. A locking nut is screwed on the top of the extension plate 312 to fix the extension plate 312 and the frame connector 100.

[0088] The second frame 320 is positioned opposite to the first frame 310 and is fixed on the base frame 110.

[0089] The thickness roller 330 is rotatably mounted at both ends onto the first frame 310 and the second frame 320.

[0090] The drive mechanism 340 is connected to one end of the thickness roller 330 for driving the thickness roller 330 to rotate.

[0091] The drive mechanism 340 includes a drive motor and a pulley drive device that is connected to the drive motor. The driving pulley of the pulley drive device is connected to the output shaft of the drive motor, and the driven pulley is connected to the thickness roller 330 to drive the thickness roller 330 to rotate.

[0092] The tension roller 350 is positioned above the thickness roller 330;

[0093] The swing member 410 is arranged below the tension roller 350 and its two ends are connected to the tension roller 350. The swing member 410 is used to realize the assembly support of the tension roller 350.

[0094] In some embodiments, the swing member 410 is a swing beam, which is laterally arranged below the tension roller 350 to assemble the tension roller 350.

[0095] The swing mechanism 420 is assembled onto the first frame 310 and connected to the swing component 410, driving the swing component 410 to drive the tension roller 350 to swing.

[0096] When the swing mechanism 420 is activated, it can drive the swing component 410 and the tension roller 350 mounted on the swing component 410 to swing back and forth.

[0097] A sanding belt 360 is wound around the thickness roller 330 and the tension roller 350.

[0098] When the sanding mechanism 300 is in operation, the drive mechanism 340 drives the thickness roller 330 to rotate, and the sanding belt 360 transmits power to the tension roller 350 to rotate, so that the sanding belt 360 makes a back-and-forth motion between the tension roller 350 and the thickness roller 330 to sand the conveyed plate.

[0099] To prevent the sanding belt 360 from exceeding the ends of the thickness roller 330 and tension roller 350 during operation, the swing mechanism 420 can drive the swing component 410 and the tension roller connected to the swing component 410 to swing, so that the sanding belt 360 swings left and right while making a back-and-forth motion, thereby correcting the deviation of the sanding belt 360.

[0100] Among them, the multiple sanding belts 360 wound on the multiple sanding mechanisms 300 have a gradually increasing mesh size along the conveying direction of the board. The larger the mesh size of the sanding belt 360, the finer its grinding of the board.

[0101] In this embodiment, multiple sanding mechanisms 300 are configured such that the mesh size of the sanding belt 360 wound above them gradually increases along the conveying direction of the board. This allows for sequential grinding of the conveyed board from coarse to fine. Through the multi-layer sequential grinding method, the fine processing requirements of the board surface are achieved in one go, improving the surface processing accuracy of the board. Furthermore, there is no need to change the sanding belt 360 during the processing, and the board is processed in one go, resulting in high processing efficiency.

[0102] When the sanding mechanism 300 sands the board conveyed by the conveyor line 200, a large amount of dust and debris will be generated, which will cause serious environmental pollution. Furthermore, since multiple sanding mechanisms 300 are set in this embodiment, a large amount of dust and polluting gas will be generated during operation, which will affect the health of the surrounding workers.

[0103] To avoid the above problems, a dust collection unit is provided on the sander in this embodiment. The dust collection unit consists of a dust collection hood 500 arranged on one side of each sander 300 and a cleaning component 600 arranged at the discharge end of the conveyor line 200.

[0104] Multiple dust hoods 500 are arranged vertically on the frame 100. Each dust hood 500 corresponds to a sanding mechanism 300 and has a dust suction part 511 for sucking up the dust generated by the sanding mechanism 300.

[0105] In a specific configuration, the dust hood 500 is positioned on the side of the sanding mechanism 300 near the feed end.

[0106] By arranging a dust hood 500 at each sanding mechanism 300, the dust and gas generated by the multiple sanding mechanisms 300 during operation can be quickly sucked away, avoiding pollution of the surrounding environment.

[0107] When the dust hood 500 is arranged vertically within the frame 100, it can reduce the space occupied while ensuring the dust collection effect, so as to achieve a compact arrangement of multiple sanding mechanisms 300 and multiple dust hoods 500, thereby reducing the space occupied by the whole machine.

[0108] In some embodiments of this application, the dust suction part 511 of the dust suction hood 500 is a dust suction port formed at its bottom, with a hollow dust suction chamber formed inside, and a dust discharge port provided at the top position. The dust discharge port is connected to the dust suction device through a dust discharge pipe.

[0109] The dust collection unit also includes a cleaning component 600, located at the discharge end. This component connects to the dust collection equipment via a pipe and uses strong suction to remove dust adhering to the material, ensuring the cleanliness of the processed material. It can also absorb some dust located in the installation space. The cleaning component 600 includes:

[0110] Cleaning cover 610, wherein the following are formed within the cleaning cover 610:

[0111] First cavity;

[0112] And a variable diameter cavity 611 connected to the first cavity, wherein the inner diameter of the variable diameter cavity 611 gradually decreases from top to bottom, and an opening 612 is formed at its bottom.

[0113] The first cavity is located at the upper position. The variable diameter cavity 611 is connected to the first cavity. The first cavity has a large cavity space. As the inner diameter of the variable diameter cavity 611 continuously decreases, its internal cavity space gradually narrows.

[0114] A sealing element 620 is provided at the opening 612, and a narrow entrance 621 is formed at the sealing element 620.

[0115] The sealing component 620 is a sealing plate, which is fixed at the opening 612 and is used to seal part of the opening 612.

[0116] The elongated inlet 621 is an elongated inlet to facilitate the intake of airflow.

[0117] A guide 630 is provided on the cleaning hood 610 on one side of the opening 612 to guide airflow into the narrow inlet 621;

[0118] A baffle 640 is disposed on the cleaning cover 610 on the other side of the opening 612, opposite to the guide 630, and is used to block the airflow.

[0119] The guide member 630 is a guide plate that extends at an incline toward the feed end and is used to guide the airflow in the installation space toward the narrow inlet 621.

[0120] The baffle 640 is a baffle plate that is fixed on the cleaning hood 610 and located on the other side of the opening 612. It is used to block the airflow so that the airflow can flow back to the cleaning hood 610 as much as possible and will not flow out into the external space.

[0121] The internal space of the cleaning hood 610 is designed with a large upper space and a gradually decreasing lower space, and the air intake position is arranged as a narrow and long inlet. When it is connected to a vacuum cleaner, a large negative pressure can be generated in the narrow and long inlet 621, which can generate a large suction force to suck up a large amount of dust on the board, resulting in a good cleaning effect on the board.

[0122] By arranging multiple dust collection hoods 500 corresponding to each sanding mechanism 300, dust in the area where each sanding mechanism 300 is located can be adsorbed. A cleaning component 600 is set at the end of the entire conveyor line 200, which can thoroughly adsorb dust on the board after multiple sanding processes. This not only ensures the cleanliness of the working environment of the multiple sanding mechanisms 300, but also ensures the cleanliness of the board after processing.

[0123] In some embodiments of this application, the swing mechanism 420 includes:

[0124] The swing seat 421 is assembled onto the first frame 310;

[0125] And two power elements mounted on the swing seat 421, each power element including a telescopic action part 422, the telescopic action parts 422 of the two power elements are arranged in opposite directions;

[0126] The first connecting component includes two first connecting members 423 arranged opposite to each other. The two first connecting members 423 are respectively connected to the telescopic power part of the two power elements and the swing member 410.

[0127] When the power extension part of one power element extends, the power extension part of the other power element retracts.

[0128] In some embodiments of this application, the two ends of the swing member 410 are connected to the tension roller 350 via a second connecting member 424, and the tension roller 350 includes:

[0129] The tensioning inner roller has a flat portion 351 formed at its end.

[0130] The connecting column is vertically inserted and fixed in the swing member 410 at one end, and locked and fixed to the flat part 351 by screws at the other end.

[0131] In some embodiments of this application, the sander further includes:

[0132] The lifting mechanism 730 is arranged below the swing member 410 and is used to lift the swing member 410 and the tension roller 350.

[0133] The lifting beam 740 is used to assemble the lifting mechanism 730, and its two ends are respectively connected and fixed to the mounting base 750 of the first frame 310 and the frame 100.

[0134] The lifting mechanism 730 includes a lifting cylinder, which includes a lifting cylinder rod. The lifting cylinder rod is connected to the swing member 410. When the swing member 410 swings, the lifting cylinder rod can rotate relative to the cylinder body to ensure that the cylinder body does not swing with the swing member 410.

[0135] Some embodiments of this application include:

[0136] Dust blowing mechanism, including:

[0137] Dust blower;

[0138] and the dust blowing drive component 830 mounted on the dust blowing frame;

[0139] The dust blowing pipe 810 is connected to the dust blowing drive and can reciprocate under the drive of the dust blowing drive. The dust blowing pipe 810 is provided with an air inlet and a plurality of air outlets 811 arranged along its length direction. The plurality of air outlets 811 are arranged facing the sanding belt 360.

[0140] A support member is provided on the frame 100 to cooperate with the dust blowing pipe 810, and the dust blowing pipe 810 and the support member are slidably connected.

[0141] The dust blowing drive component 830 is a dust blowing cylinder, which has a dust blowing cylinder rod. The dust blowing cylinder rod is fixedly connected to one end of the dust blowing pipe 810, and the other end of the dust blowing pipe 810 is slidably connected to the support component.

[0142] During dust blowing, the dust blowing cylinder rod of the dust blowing cylinder extends and retracts, thereby driving the dust blowing pipe 810 connected to it to move back and forth along the width direction of the sanding belt 360, and blowing away the dust on the sanding belt 360 through multiple air outlets 811 above it.

[0143] An air blowing device is connected to the air inlet of the dust blowing pipe 810, which continuously blows air into the dust blowing pipe 810 through the air inlet.

[0144] The air blowing equipment can directly adopt the existing air blowing structure.

[0145] In some embodiments of this application, a guide limiting member 820 for facilitating the conveying of the plate is provided on the side of the frame 100 near the feed end. The guide limiting member 820 has a guide portion 821 and a positioning portion 822 connected to the guide portion 821.

[0146] The guide limit component 820 is a guide limit cover, which is fixed on the frame 100 and is used to limit and guide the position of the plate.

[0147] When the staff member placing the board is short, the board may be warped at the front end when placed on the conveyor line 200. The guide limiter 820 set on the frame 100 can limit the warped board and guide the board through the guide part 821 set above it. The positioning part 822 ensures that the board is ultimately kept straight during the conveying.

[0148] The guide portion 821 is an inclined guide surface formed at the bottom of the guide limiting member 820, and the positioning portion 822 is a flat positioning surface connected to the inclined guide surface.

[0149] In some embodiments of this application, the sander includes:

[0150] Multiple pressure roller assemblies 910 are arranged between adjacent sanding mechanisms 300. Each pressure roller assembly 910 includes a pressure roller seat 911. The pressure roller assembly 910 is mainly used to press the board to prevent the board from warping during sanding.

[0151] The pressure roller assembly 910 can directly adopt the existing pressure roller assembly 910 structure, which will not be described in detail here.

[0152] Each sanding mechanism 300 has a pressure shoe assembly on both sides. The pressure shoe assembly is also used to press and limit the sheet material to prevent it from warping. The pressure shoe assembly includes:

[0153] The pressure shoe sole plate 920 is a flat plate with a flat bottom.

[0154] And the pressure shoe connecting plate assembly, which is connected and fixed to the pressure roller seat 911 corresponding to its position;

[0155] A pressure shoe reinforcing plate assembly is connected between the pressure shoe connecting plate assembly and the pressure shoe bottom plate 920.

[0156] In some embodiments of this application, the pressure shoe connecting plate assembly includes a first connecting plate 931, of which two are provided and symmetrically arranged on both sides of the pressure roller seat 911, along the width direction of the conveyor line 200.

[0157] The second connecting plate 932 group is provided in two sets, which are respectively arranged at both ends of the two first connecting plates 931 and respectively connected to both ends of the two first connecting plates 931.

[0158] Each set of second connecting plates includes two second connecting plates 932. The two second connecting plates 932 are welded and fixed to the two first connecting plates 931 respectively. The two second connecting plates 932 are fixedly connected by screws and pressure roller seat 911.

[0159] The pressure shoe reinforcement plate assembly includes two pressure shoe reinforcement plates 940, which are respectively connected between the first connecting plate 931 and the pressure shoe bottom plate 920.

[0160] In some embodiments of this application, a suspension beam 121 is provided above the frame 100;

[0161] A support beam 912 is provided on the pressure roller seat 911. The bottom of the dust collection hood 500 is fixedly connected to the support beam 912, and the top is fixedly connected to the suspension beam 121.

[0162] The dust hood 500 is supported and fixed by the cooperation of the support beam 912 and the suspension beam 121.

[0163] The frame 100 includes a frame side member 130, a filling cavity is formed inside the frame side member, and concrete is filled in the filling cavity. Filling the frame side member with concrete can enhance the strength of the entire frame 100 and reduce machine vibration.

[0164] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A sanding machine, characterized in that, Including: frame; And a conveyor line arranged on the frame for conveying the sheet metal, with a feed end and a discharge end formed at both ends; The sanding mechanism consists of seven or more units, which are mounted on the frame and arranged at intervals along the conveying direction of the sheet metal. The sanding mechanism includes: First frame; And a second frame positioned opposite the first frame; The thickness roller is rotatably mounted at both ends onto the first and second frames; A drive mechanism is connected to one end of the thickness roller and is used to drive the thickness roller to rotate. A tensioning roller is positioned above the thickness-fixing roller; A swinging component is arranged below the tension roller, with both ends connected to the tension roller; The swing mechanism is assembled onto the first frame and connected to the swing component, driving the swing component to swing the tension roller. A sanding belt is wound around the thickness roller and the tension roller; Among them, the mesh size of the multiple sanding belts wound on the multiple sanding mechanisms gradually increases along the conveying direction of the board.

2. The sander according to claim 1, characterized in that, The sanding mechanism is set up with 7 units, and the mesh size range of the sanding belt on each sanding mechanism along the board conveying direction is as follows: 100-120 mesh, 120-150 mesh, 150-180 mesh, 180-240 mesh, 240-320 mesh, 320-400 mesh, and above 400 mesh.

3. The sander according to claim 1, characterized in that, Includes: The vacuum unit includes: Multiple dust hoods are arranged vertically on the frame. Each dust hood corresponds to a sanding mechanism and has a dust suction section for sucking up the dust generated by the sanding mechanism. A cleaning component, located at the discharge end of the frame and connected to a dust collection device via piping, includes: A cleaning hood is formed within which: A variable-diameter cavity, wherein the inner diameter of the variable-diameter cavity gradually decreases from top to bottom, and an opening is formed at its bottom; A sealing element is provided at the opening, and a narrow entrance is formed at the sealing element; A guide, provided on the cleaning hood on one side of the opening, is used to guide airflow into the narrow inlet. A baffle is disposed on the cleaning hood on the other side of the opening, opposite to the guide member, to block the airflow.

4. The sander according to claim 1, characterized in that, The swing mechanism includes: The swing seat is assembled onto the first frame. And two power elements mounted on the swing seat, each power element including a telescopic action part, the telescopic action parts of the two power elements are arranged in opposite directions; The first connecting assembly includes two first connecting members arranged opposite to each other, and the two first connecting members are respectively connected to the telescopic power part and the swinging member of the two power elements; When the power extension part of one power element extends, the power extension part of the other power element retracts.

5. The sander according to claim 4, characterized in that, The two ends of the swinging member are connected to the tensioning roller via a second connecting member, and the tensioning roller includes: The inner tensioning roller has a flattened portion at its end. The second connecting member is vertically inserted and fixed inside the swinging member at one end, and locked to the flat part by screws at the other end.

6. The sander according to claim 1, characterized in that, It also includes: A lifting mechanism, located below the swinging component, is used to lift the swinging component and the tensioning roller; The lifting beam is used to assemble the lifting mechanism, and its two ends are respectively connected and fixed to the first frame and the mounting base assembled on the frame.

7. The sander according to claim 1, characterized in that, Including: Multiple dust blowing mechanisms are provided, each positioned corresponding to one of the multiple sanding mechanisms, including: Dust blower; And the dust blowing drive component mounted on the dust blowing frame; The dust blowing pipe is connected to the dust blowing drive and can reciprocate under the drive of the dust blowing drive. The dust blowing pipe is provided with an air inlet and multiple air outlets arranged along its length, with the multiple air outlets facing the sanding belt.

8. The sander according to claim 1, characterized in that, A guide and limiting component is provided at the feed end of the frame to facilitate the conveying of the sheet metal. The guide and limiting component has a guide portion and a positioning portion connected to the guide portion.

9. The sander according to claim 3, characterized in that, include: Multiple pressure roller assemblies are arranged between adjacent sanding mechanisms, and each pressure roller assembly includes a pressure roller seat; Each sanding mechanism has a pressure shoe assembly on both sides, the pressure shoe assembly comprising: Press the sole of the boot; And the pressure shoe connecting plate assembly, which is connected and fixed to the pressure roller seat corresponding to its position; A pressure shoe reinforcing plate assembly is connected between the pressure shoe connecting plate assembly and the pressure shoe bottom plate assembly.

10. The sander according to claim 9, characterized in that, Multiple suspension beams are installed above the frame; Each of the pressure roller seats is provided with a support beam, and the bottom of each of the dust collection hoods is fixedly connected to the support beam, and the top is fixedly connected to the suspension beam.

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