Large drum-type sander

Abstract

The utility model discloses a large drum-type sander which comprises a machine frame, transverse connecting plates are fixed to the front portion and the rear portion of the middle of the top face of a top plate of the machine frame, and rotating shaft portions at the two ends of a plurality of conveying rollers are movably connected to the two transverse connecting plates through bearings. A rotating shaft part at one end of each conveying roller extends out of the rear transverse connecting plate and is fixedly provided with a duplex chain wheel, and in the duplex chain wheels of every two adjacent conveying rollers, a chain is tensioned between the two corresponding chain wheels; bottom dust collection is adopted, so that the height can be reduced, the first grinding roller body and the second grinding roller body are adopted for continuous machining, products needing secondary grinding can be machined at a time, and the machining efficiency is high.

Description

Technical field:

[0001] The utility model relates to the technical field of woodworking equipment, and more specifically to a large-scale drum sanding machine. Background technology:

[0002] Woodworking sander is a woodworking machine tool that uses sanding belts and sandpaper (paper) to sand the surface of the workpiece.

[0003] However, in the existing woodworking sanding machine, a large amount of dust is generated during sanding. Therefore, a dust hood can only be provided above the sanding roller, and the dust hood needs to be fixed to the frame through a support plate or a support rod, and connected to a dust suction pipe, so as to absorb the dust generated by sanding. This greatly increases the height of the entire woodworking sanding machine, occupies too much space above, and does not need to be installed for workshops with limited height.

[0004] At the same time, generally only one grinding roller is arranged on the upper part. When the thickness of the plate to be ground off is large, it needs to be ground twice, which affects the processing efficiency and the grinding effect is not ideal. Utility model content:

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a large-scale drum sanding machine, which adopts bottom dust suction so that its height can be reduced, and adopts a first grinding roller body and a second grinding roller body for continuous processing, so that products that need secondary grinding can be processed in one time, and the processing efficiency is high.

[0006] The solution of the utility model to solve the technical problem is:

[0007] A large drum sanding machine comprises a frame, wherein the front and rear parts of the middle part of the top surface of the top plate of the frame are fixed with transverse connecting plates, the rotating shaft parts at both ends of a plurality of conveying rollers are movably connected to the two transverse connecting plates through bearings, the rotating shaft part at one end of the conveying roller extends out of the rear transverse connecting plate and is fixed with a double-row sprocket, and a chain is stretched between the corresponding two sprockets in the double-row sprockets of each two adjacent conveying rollers;

[0008] Side support plates are fixed to the front and rear of the top surface of the top plate of the frame, a first lifting plate is provided above the left parts of the two side support plates, a first grinding roller body is installed on the first lifting plate, a second lifting plate is provided above the right parts of the two side support plates, a second grinding roller body is installed on the second lifting plate, the first grinding roller body and the second grinding roller body are located between the two side support plates and close to the conveying roller below;

[0009] A lower adsorption groove is formed in the middle of the top surface of the top plate of the frame directly below all conveying rollers, and a plurality of suction connectors are fixed on the bottom surface of the top plate of the frame, and the suction connectors are connected to the adsorption grooves. The suction connectors can be connected to the suction connection pipes of the dust collection equipment in the factory to achieve suction, so that the dust generated during processing can be processed.

[0010] One end of a conveying roller extends out of the front transverse connecting plate and is fixed to the output shaft of the conveying motor fixed to the top surface of the top plate of the frame through a coupling.

[0011] Vertical fixing plates are fixed to the front and rear parts of the bottom surface of the first lifting plate, the rotating shafts at the front and rear ends of the first grinding roller body are movably connected to the two vertical fixing plates through bearings, the bottom of the first grinding roller body is lower than the bottom surface of the vertical fixing plate, the outside of the rotating shaft at one end of the first grinding roller body extends out of the corresponding vertical fixing plate and is fixed with a first transmission wheel, the top surface of the first lifting plate is fixed with a first driving motor, the output shaft of the first driving motor is fixed with a first driving wheel, the first transmission belt is tensioned on the first driving wheel and the first transmission wheel, and the first transmission belt is inserted into a through groove provided on the first lifting plate.

[0012] The front and rear parts of the bottom surface of the second lifting plate are both fixed with second vertical fixing plates, the rotating shafts at the front and rear ends of the second grinding roller body are movably connected to the two second vertical fixing plates through bearings, the bottom of the second grinding roller body is lower than the bottom surface of the second vertical fixing plate, the outside of the rotating shaft at one end of the second grinding roller body extends out of the corresponding second vertical fixing plate and is fixed with two second transmission wheels close to each other, the top surface of the second lifting plate is fixed with a second driving motor, the output shaft of the second driving motor is fixed with a second driving wheel, the second transmission belt is tensioned on the second driving wheel and one of the second transmission wheels, and the second transmission belt is inserted into a through groove provided on the second lifting plate;

[0013] A transmission roller is provided between the left parts of the two second vertical fixed plates, and the rotating shafts at the front and rear ends of the transmission roller are movably connected to the two second vertical fixed plates through bearings, and the end of the rotating shaft at the corresponding end of the transmission roller extends out of the corresponding second vertical fixed plate and is fixed with a third transmission wheel, and a third transmission belt is tensioned on the corresponding second transmission wheel and the third transmission wheel.

[0014] The beneficial effects of the utility model are:

[0015] It adopts bottom dust suction so that its height can be lowered, so that it can be installed in places where the height of the factory building is not high, and its height requirement is greatly reduced. In addition, it adopts the first grinding roller body and the second grinding roller body for continuous processing, so that the products that need secondary grinding can be processed in one time, and the processing efficiency is high. Description of the drawings:

[0016] Figure 1It is a partial structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial cross-sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the local structure at the first grinding roller;

[0019] Figure 4 It is a schematic diagram of the local structure at the second grinding roller;

[0020] Figure 5 It is a schematic diagram of the local structure at the conveyor roller. Specific implementation method:

[0021] For example, see Figures 1 to 5 As shown, a large drum sanding machine comprises a frame 10, wherein the front and rear parts of the middle part of the top surface of the top plate of the frame 10 are fixed with transverse connecting plates 11, the rotating shaft parts at both ends of a plurality of conveying rollers 12 are movably connected to the two transverse connecting plates 11 through bearings, all the conveying rollers 12 are parallel to each other, the rotating shaft parts at the rear ends of all the conveying rollers 12 extend out of the rear transverse connecting plate 11 and are fixed with double-row sprockets 13, and in the double-row sprockets 13 of each two adjacent conveying rollers 12, a chain 14 is stretched between the corresponding two sprockets;

[0022] The rotating shaft at the front end of one of the conveying rollers 12 extends out of the front transverse connecting plate 11 and is fixed to the output shaft of the conveying motor 180 fixed to the top surface of the top plate of the frame 10 through a coupling. It is driven by the conveying motor 180 to drive all the conveying rollers 12 to operate.

[0023] Furthermore, the front and rear parts of the top surface of the top plate of the frame 10 are fixed with side support plates 15, a first lifting plate 20 is provided above the left parts of the two side support plates 15, a first grinding roller body 21 is installed on the first lifting plate 20, a second lifting plate 30 is provided above the right parts of the two side support plates 15, a second grinding roller body 31 is installed on the second lifting plate 30, the first grinding roller body 21 and the second grinding roller body 31 are located between the two side support plates 15 and close to the conveying roller 12 below;

[0024] A lower adsorption groove 16 is formed in the middle of the top surface of the top plate of the frame 10 directly below all the conveying rollers 12, and a plurality of suction connectors 17 are fixed to the bottom surface of the top plate of the frame 10, and the suction connectors 17 are communicated with the adsorption groove 16. The suction connectors 17 can be connected to the suction port of the total dust collection equipment in the factory area through a connecting pipe, and the dust collection equipment is a conventional product that can be directly purchased, and will not be described in detail here.

[0025] Furthermore, an upper transverse plate 151 is fixed to the upper outer wall of the left part of the two side support plates 15 and the upper outer wall of the right part of the two side support plates 15, and the front end and rear part of the first lifting plate 20 and the second lifting plate 30 are directly above the corresponding upper transverse plate 151, and the front and rear bottom surfaces of the first lifting plate 20 and the second lifting plate 30 are movably connected to two vertical screws 1, and the vertical screw 1 is screwed into the middle screw through hole of the corresponding upper transverse plate 151, and the bottom end of the vertical screw 1 extends out of the bottom surface of the corresponding upper transverse plate 151 and is screwed with a locking nut 2, and the top surface of the locking nut 2 is pressed against the bottom surface of the corresponding upper transverse plate 151, and the bottom end of the vertical screw 1 is formed with a rotating part.

[0026] The upper part of the vertical screw rod 1 is sleeved with a compression spring 8, the top end of the compression spring 8 is pressed against the bottom surface of the end of the corresponding first lifting plate 20 or the second lifting plate 30, and the bottom end of the compression spring 8 is pressed against the top surface of the corresponding upper transverse plate 151.

[0027] Vertical fixing plates are fixed to the front and rear parts of the bottom surface of the first lifting plate 20, and the rotating shafts at the front and rear ends of the first grinding roller body 21 are movably connected to the two vertical fixing plates through bearings. The bottom of the first grinding roller body 21 is lower than the bottom surface of the vertical fixing plate, and the outside of the rotating shaft at one end of the first grinding roller body 21 extends out of the corresponding vertical fixing plate and is fixed with a first transmission wheel 22 (which is a synchronous wheel). A first driving motor 23 is fixed to the top surface of the first lifting plate 20, and a first driving wheel 24 (which is a synchronous wheel) is fixed on the output shaft of the first driving motor 23. The first transmission belt 25 (which is a synchronous belt) is tensioned on the first driving wheel 24 and the first transmission wheel 22, and the first transmission belt 25 is inserted into the through groove provided on the first lifting plate 20.

[0028] The front and rear parts of the bottom surface of the second lifting plate 30 are fixed with second vertical fixing plates, the rotating shafts at the front and rear ends of the second grinding roller body 31 are movably connected to the two second vertical fixing plates through bearings, the bottom of the second grinding roller body 31 is lower than the bottom surface of the second vertical fixing plate, the outside of the rotating shaft at one end of the second grinding roller body 31 extends out of the corresponding second vertical fixing plate and is fixed with two second transmission wheels 32 (which are synchronous wheels) close to each other, the top surface of the second lifting plate 30 is fixed with a second driving motor 39, the output shaft of the second driving motor 39 is fixed with a second driving wheel 33 (which is a synchronous wheel), the second transmission belt 34 (which is a synchronous belt) is tensioned on the second driving wheel 33 and one of the second transmission wheels 32, and the second transmission belt 34 is inserted into the through groove provided on the second lifting plate 30;

[0029] A transmission roller 35 is provided between the left parts of the two second vertical fixed plates, and the rotating shafts at the front and rear ends of the transmission roller 35 are movably connected to the two second vertical fixed plates through bearings. The end of the rotating shaft at the corresponding end of the transmission roller 35 extends out of the corresponding second vertical fixed plate and is fixed with a third transmission wheel 36 (which is a synchronous wheel), and a third transmission belt 37 (which is a synchronous belt) is tensioned on the corresponding second transmission wheel 32 and the third transmission wheel 36.

[0030] Sandpaper layers are fixed on the outer wall surfaces of the first grinding roller body 21 and the second grinding roller body 31 , and are used as grinding rollers; the bottom end of the driving roller 35 is on the same horizontal plane as the bottom end of the second grinding roller body 31 .

[0031] Upper connecting beams 18 are provided at the upper parts of the left and right parts of the two side support plates 15 , and the front and rear ends of the upper connecting beams 18 are fixed to the inner side walls of the two side support plates 15 . The upper connecting beams 18 increase the supporting force of the two side support plates 15 .

[0032] When the present embodiment is in use, the corresponding locking nut 2 can be loosened and the corresponding two vertical screws 1 can be rotated, so that the height position of the first lifting plate 20 and the height position of the second lifting plate 30 can be adjusted (when rotating, diagonal rotation is adopted, that is, the vertical screw 1 at one end of the front of the first lifting plate 20 or the second lifting plate 30 rotates one circle, and the vertical screw 1 at the other end of the corresponding rear portion is rotated one circle, and the adjustment is achieved by gradually rotating one circle). The bottom end of the first grinding roller body 31 can be lower than the bottom end of the second grinding roller body 31, and then all the locking nuts 2 are tightened, wherein the distance between the bottom end of the first grinding roller body 31 and the top end of the conveying roller 12 below reaches the thickness to be achieved after the wood board to be processed is processed, and the bottom end of the second grinding roller body 31 is slightly higher than the bottom end of the first grinding roller body 21;

[0033] Then, the conveying motor 180 is operated to make all the conveying rollers 12 operate, the first driving motor 23 is operated to make the first grinding roller body 31 rotate, and the second driving standby 32 is operated to make the second grinding roller body 31 and the transmission roller 35 rotate synchronously;

[0034] Then, place the wooden board above the rightmost conveying roller 12, and as all the conveying rollers 12 rotate, the wooden board is conveyed to the left, where it first passes through the second grinding roller body 31 to grind off a layer, and then passes through the conveying guide of the transmission roller 35 (the transmission roller 35 is located between the first grinding roller body 21 and the second grinding roller body 31) to continue to be conveyed to the left. After being polished by the first grinding roller body 21, the wooden board is output from the left. The dust generated during the grinding process is sucked in by the suction connector 17, so that the dust will be in the adsorption groove 16 and enter the subsequent dust suction process through the connecting pipe connected to the suction connector 17 for treatment, which is very convenient.

[0035] Since the second grinding roller body 31 and the first grinding roller body 21 are used for continuous grinding, double grinding is achieved, which greatly improves the grinding effect. Products that originally required two grindings can be processed at one time, and the efficiency is greatly improved.

[0036] Moreover, during grinding, the dust is absorbed by the dust suction device connected to the air suction connection head 17 below, so that there is no need to install a shell on the upper part, so that the grinding situation can be checked from the outside. Part of the dust in the grinding process will be blocked by the first lifting plate 20 and the second lifting plate 30, so that part of the dust flying upward can be blocked and then absorbed by the dust suction device connected to the air suction connection head 17 below. The dust suction force is enough to ensure that the upward dust generated by cutting is absorbed and removed downward when it flies into the air.

[0037] When this embodiment is in use and there is still dust floating outward, a protective cover can be installed on the top surface of the top plate of the rack 10 so that the upper equipment is placed in the upper protective cover to achieve protection.

[0038] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A large drum sanding machine, comprising a frame (10), characterized in that: A transverse connecting plate (11) is fixed to the front and rear of the middle of the top surface of the top plate of the frame (10); the rotating shafts at both ends of a plurality of conveying rollers (12) are movably connected to the two transverse connecting plates (11) through bearings; the rotating shaft at one end of the conveying roller (12) extends out of the rear transverse connecting plate (11) and is fixed with a double-row sprocket (13); and a chain (14) is tensioned between the corresponding two sprockets in the double-row sprockets (13) of each two adjacent conveying rollers (12); Side support plates (15) are fixed to the front and rear of the top surface of the top plate of the frame (10); a first lifting plate (20) is provided above the left parts of the two side support plates (15); a first grinding roller body (21) is installed on the first lifting plate (20); a second lifting plate (30) is provided above the right parts of the two side support plates (15); a second grinding roller body (31) is installed on the second lifting plate (30); the first grinding roller body (21) and the second grinding roller body (31) are located between the two side support plates (15) and close to the conveying roller (12) below; A lower adsorption groove (16) is formed in the middle of the top surface of the top plate of the frame (10) directly below all the conveying rollers (12), and a plurality of suction connectors (17) are fixed to the bottom surface of the top plate of the frame (10), and the suction connectors (17) are in communication with the adsorption groove (16).

2. A large drum sanding machine according to claim 1, characterized in that: One end of one of the conveying rollers (12) extends out of the front transverse connecting plate (11) and is fixed to the output shaft of a conveying motor (180) fixed to the top surface of the top plate of the frame (10) through a coupling.

3. A large drum sanding machine according to claim 1, characterized in that: An upper transverse plate (151) is fixed to the upper outer wall of the left part of the two side support plates (15) and the upper outer wall of the right part of the two side support plates (15); the front end and the rear end of the first lifting plate (20) and the second lifting plate (30) are located directly above the corresponding upper transverse plate (151); the bottom surfaces of the front and rear parts of the first lifting plate (20) and the second lifting plate (30) are movably connected with a vertical screw rod (1); the vertical screw rod (1) is screwed into the middle screw connection through hole of the corresponding upper transverse plate (151); the bottom end of the vertical screw rod (1) extends out of the bottom surface of the corresponding upper transverse plate (151) and is screwed with a locking nut (2); the top surface of the locking nut (2) is pressed against the bottom surface of the corresponding upper transverse plate (151); and a rotating portion is formed at the bottom end of the vertical screw rod (1).

4. A large drum sanding machine according to claim 3, characterized in that: The upper part of the vertical screw rod (1) is sleeved with a compression spring (8), the top end of the compression spring (8) is pressed against the bottom surface of the end of the corresponding first lifting plate (20) or the second lifting plate (30), and the bottom end of the compression spring (8) is pressed against the top surface of the corresponding upper transverse plate (151).

5. A large drum sanding machine according to claim 1, characterized in that: The front and rear parts of the bottom surface of the first lifting plate (20) are both fixed with vertical fixing plates, the rotating shafts at the front and rear ends of the first grinding roller body (21) are movably connected to the two vertical fixing plates through bearings, the bottom of the first grinding roller body (21) is lower than the bottom surface of the vertical fixing plate, the outside of the rotating shaft at one end of the first grinding roller body (21) extends out of the corresponding vertical fixing plate and is fixed with a first transmission wheel (22), the top surface of the first lifting plate (20) is fixed with a first driving motor (23), the output shaft of the first driving motor (23) is fixed with a first driving wheel (24), the first transmission belt (25) is tensioned on the first driving wheel (24) and the first transmission wheel (22), and the first transmission belt (25) is inserted into a through groove provided on the first lifting plate (20).

6. A large drum sanding machine according to claim 1, characterized in that: The front and rear parts of the bottom surface of the second lifting plate (30) are both fixed with second vertical fixing plates, the rotating shafts at the front and rear ends of the second grinding roller body (31) are movably connected to the two second vertical fixing plates through bearings, the bottom of the second grinding roller body (31) is lower than the bottom surface of the second vertical fixing plate, the outside of the rotating shaft at one end of the second grinding roller body (31) extends out of the corresponding second vertical fixing plate and is fixed with two second transmission wheels (32) close to each other, the top surface of the second lifting plate (30) is fixed with a second driving motor (39), the output shaft of the second driving motor (39) is fixed with a second driving wheel (33), the second transmission belt (34) is tensioned on the second driving wheel (33) and one of the second transmission wheels (32), and the second transmission belt (34) is inserted into a through groove provided on the second lifting plate (30); A transmission roller (35) is provided between the left parts of the two second vertical fixed plates, and the rotating shafts at the front and rear ends of the transmission roller (35) are movably connected to the two second vertical fixed plates through bearings, and the end of the rotating shaft at the corresponding end of the transmission roller (35) extends out of the corresponding second vertical fixed plate and is fixed with a third transmission wheel (36), and a third transmission belt (37) is tensioned on the corresponding second transmission wheel (32) and the third transmission wheel (36).

7. A large drum sanding machine according to claim 6, characterized in that: Sandpaper layers are fixed on the outer wall surfaces of the first grinding roller body (21) and the second grinding roller body (31); the bottom end of the driving roller (35) and the bottom end of the second grinding roller body (31) are located on the same horizontal plane.

8. A large drum sanding machine according to claim 1, characterized in that: Upper connecting beams (18) are provided at the upper parts of the left and right parts of the two side supporting plates (15), and the front and rear ends of the upper connecting beam (18) are fixed on the inner side walls of the two side supporting plates (15).

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