Double-station belt sander

Abstract

The utility model discloses a double-station belt sander, which relates to the technical field of belt sanders and particularly comprises a base, a U-shaped frame is mounted at the top of the base, an opening of the U-shaped frame faces downwards, a support beam is arranged on one side of the top of the U-shaped frame, and the support beam is connected with one side, close to the U-shaped frame, of the U-shaped frame through a horizontal connecting frame. The two ends of the supporting beam are connected with the side face of the U-shaped frame through inclined supporting frames. The side faces of the two sides of the outer portion of the U-shaped frame are each provided with two strip-shaped supports, a certain distance is formed between the two strip-shaped supports, and the ends, away from the inclined supporting frame, of the strip-shaped supports extend out of the U-shaped frame. When the abrasive belt tensioning device is used, each abrasive belt is independent and can be tensioned independently, the tensioning degree of the abrasive belts can be adjusted by rotating the rotating wheels, the abrasive belts can be tensioned when being tightened, and the abrasive belts can be conveniently replaced when being loosened; and the abrasive belt further has a buffering function, that is, after the abrasive belt is impacted, the abrasive belt deforms to drive the buffering spring to be compressed, so that buffering is achieved, and the belt is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive belt machines, in particular to a double-station abrasive belt machine. Background Art

[0002] A belt sander is a machine used for grinding, polishing and finishing the surface of an object. The belt sander drives the belt drum to generate high-speed motion, so that the belt with sand grains contacts and rubs against the surface of the object, thereby performing grinding, polishing and finishing.

[0003] The grinding belts in existing belt sanders need to be replaced regularly because the sand on the belts becomes less and less as they are used, which significantly weakens the grinding effect. The tensioning mechanism of traditional belt sanders requires manual adjustment of the screw to adjust the feeding of the belts, which is cumbersome to operate. In addition, the belts are in rigid contact with the tensioning mechanism, which does not provide a buffering function for the belts. To this end, we propose a double-station belt sander. Utility Model Content

[0004] In view of the disadvantage that the existing sanding belt machine only contains one sanding belt, resulting in a small number of sanding belts, the utility model provides a double-station sanding belt machine, which has the advantages of double-station sanding belts and each sanding belt can be tensioned and buffered, thereby solving the problems raised in the above background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A double-station belt sander is designed, comprising a base, a U-shaped frame is installed on the top of the base, the U-shaped frame is opened downward, a support beam is arranged on one side of the top of the U-shaped frame, the support beam and the side close to the U-shaped frame are connected by a horizontal connecting frame, and the two ends of the support beam are connected to the side of the U-shaped frame by an oblique supporting frame;

[0007] Two strip supports are installed on the sides of both sides of the U-shaped frame, and a certain distance is set between the two strip supports. One end of the strip support away from the oblique support frame extends outside the U-shaped frame, and a first bearing seat is provided on the end of the strip support, and a first support wheel is rotatably installed in the first bearing seat;

[0008] An adjusting screw is respectively provided above both ends of the support beam, and both ends of the adjusting screw are respectively located above the support beam and the U-shaped frame, and both ends of the adjusting screw are rotatably installed in the third bearing seat, and the third bearing seats are respectively installed on the top of the support beam and the U-shaped frame, and mounting seats are also provided on the sides of the two third bearing seats located on the same adjusting screw, and the two mounting seats are connected by a guide support rod, and a support arm is movably penetrated on the guide support rod, and one end of the support arm penetrates and is threadedly connected to the adjusting screw, and a fixed seat is provided on the other end of the support arm away from the U-shaped frame;

[0009] A second bearing seat is installed on the side of the fixed seat away from the U-shaped frame, and a second supporting wheel is rotatably installed in the second bearing seat. Two guide shafts are vertically arranged on the side of the fixed seat close to the U-shaped frame, and the guide shafts are movably penetrated on the ends of the supporting arms. Buffer springs are sleeved on the guide shafts between the fixed seat and the supporting arms; the second supporting wheel and the first supporting wheel are respectively located on one side of the U-shaped frame and are connected by a sanding belt;

[0010] It also includes a driving device which is arranged at the bottom of the U-shaped frame and connected to the first supporting wheel.

[0011] Preferably, a rotating wheel is coaxially provided at one end of the adjusting screw away from the U-shaped frame, and the rotating wheel is connected to the end of the adjusting screw by a plurality of connecting rods.

[0012] Preferably, the support arms are respectively provided with positioning bolts corresponding to the guide support rods, and the positioning bolts can be turned to abut against the guide support rods.

[0013] Preferably, the driving device comprises a mounting plate installed at the bottom of the U-shaped frame, and driving motors are respectively provided at both ends of the mounting plate, and the rotating shaft of the driving motor is connected to the end of the first supporting wheel.

[0014] Preferably, an L-shaped support plate is provided between the two first support wheels on the same side, one side of the L-shaped support plate is connected to the side of the U-shaped frame, and the other side of the L-shaped support plate is placed on the side of the sanding belt;

[0015] A support platform is provided on one side of the L-shaped support plate close to the sanding belt. One end of the support platform is connected to the L-shaped support plate through a connecting seat. The L-shaped support plate and the support platform are vertically arranged, and a gap is provided between the L-shaped support plate and the support platform for accommodating the sanding belt.

[0016] Preferably, an anti-slip limit block is provided at one end of the guide shaft away from the second supporting wheel.

[0017] Compared with the prior art, the utility model, when in use, 1. has sanding belts on both sides of the U-shaped frame, so that the entire sanding machine has two sanding stations, thereby increasing the sanding positions of the sanding machine;

[0018] 2. Each sanding belt is independent and can be tensioned separately. The tension of the sanding belt can be adjusted by turning the rotating wheel. When the sanding belt is tightened, it can be tightened. When the sanding belt is loosened, it can be easily replaced.

[0019] 3. The sanding belt also has a buffering function, that is, when the sanding belt is impacted, the deformation of the sanding belt will drive the buffer spring to be compressed, thereby achieving buffering and protecting the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 It is a partial structural schematic diagram of the utility model.

[0022] Figure 3 It is a schematic diagram of the specific structure of the connection between the adjusting screw and the support arm of the utility model.

[0023] Figure 4 It is a side view of the utility model.

[0024] In the figure: 1. U-shaped frame; 2. base; 3. first support wheel; 4. inclined support frame; 5. connecting seat; 6. L-shaped support plate; 7. first bearing seat; 8. strip support; 9. third bearing seat; 10. horizontal connecting frame; 11. rotating wheel; 12. connecting rod; 13. support beam; 14. support arm; 15. buffer spring; 16. guide shaft; 17. guide support rod; 18. sanding belt; 19. driving motor; 20. mounting plate; 21. support platform; 22. adjusting screw; 23. positioning bolt; 24. mounting seat; 25. second bearing seat; 26. second support wheel; 27. fixing seat. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figures 1 to 4 The utility model provides a technical solution: a double-station sanding machine, including a base 2, a U-shaped frame 1 is installed on the top of the base 2, the U-shaped frame 1 is opened downward, the U-shaped frame 1 and the base 2 are welded and fixed or fastened together by bolts, and the four corners of the bottom of the base 2 are provided with support legs or brake universal wheels.

[0027] like Figure 1 As shown, the support beam 13 is arranged in parallel on one side of the top of the U-shaped frame 1, and at least two horizontal connecting frames 10 are arranged between the support beam 13 and the U-shaped frame 1. The two ends of the horizontal connecting frames 10 are respectively connected to the support beam 13 and the U-shaped frame 1, and the two ends of the support beam 13 are connected to the side of the U-shaped frame 1 through the oblique support frame 4. At this time, the oblique support frame 4 and the horizontal connecting frame 10 form a triangular stable support structure, which makes the support beam 13 more stable.

[0028] like Figure 1As shown, two strip supports 8 are installed on the side surfaces on both sides of the outside of the U-shaped frame 1, and the strip supports 8 are fastened to the side surfaces of the U-shaped frame 1 by bolts. The ends of the strip supports 8 extend outside the U-shaped frame 1, and the ends of the strip supports 8 are provided with first bearing seats 7. The first bearing seats 7 are rotatably installed (specifically installed through bearings) with first support wheels 3, so that each first support wheel 3 can rotate freely.

[0029] like Figure 1 and Figure 2 As shown, an adjusting screw 22 is respectively provided above both ends of the support beam 13, and both ends of the adjusting screw 22 are respectively located above the support beam 13 and the U-shaped frame 1, and both ends of the adjusting screw 22 are rotatably installed (specifically installed through bearings) in the third bearing seat 9, and the third bearing seat 9 is respectively installed on the top of the support beam 13 and the U-shaped frame 1, and a mounting seat 24 is also provided on the side of the two third bearing seats 9 located on the same adjusting screw 22, and the two mounting seats 24 are connected by a guide support rod 17, and a support arm 14 is movably penetrated on the guide support rod 17, so that the support arm 14 can move freely along the guide support rod 17;

[0030] One end of the support arm 14 passes through and is threadedly connected to the adjusting screw 22, and a fixing seat 27 is provided on the other end of the support arm 14 away from the U-shaped frame 1. The support arm 14 is supported by the adjusting screw 22 and the guide support rod 17 at the same time, so that there are two supporting points on the support arm 14, so that the support arm 14 can only make a linear reciprocating motion along the guide support rod 17 driven by the adjusting screw 22.

[0031] like Figure 3 As shown, a second bearing seat 25 is installed on the side of the fixed seat 27 away from the U-shaped frame 1, and a second support wheel 26 is rotatably installed (specifically installed through a bearing) in the second bearing seat 25. Two guide shafts 16 are vertically provided on the side of the fixed seat 27 close to the U-shaped frame 1. The guide shafts 16 are movably passed through the end of the support arm 14. The number of guide shafts 16 is at least two, and the function is the same as that of the support arm 14, which is supported by the adjusting screw 22 and the guide support rod 17 at the same time, that is, the fixed seat 27 can only move along the direction of the guide shaft 16 like the support arm 14, and an anti-slip limit block is provided on the end of the guide shaft 16 away from the second support wheel 26.

[0032] A buffer spring 15 is sleeved on the guide shaft 16 between the fixing seat 27 and the support arm 14; Figure 1 As shown, the second support wheel 26 and the first support wheel 3 are respectively located on one side of the U-shaped frame 1 and are connected by the sanding belt 18; a certain distance is set between the two strip supports 8, so that the sanding belt 18 between the two strip supports 8 is stretched to form a vertical grinding plane.

[0033] Specifically, a sanding belt 18 is installed on both sides of the U-shaped frame 1, so that the sanding belt machine has two sanding belts 18. The working efficiency of the sanding machine with two sanding belts 18 is improved compared with a sanding belt with one sanding belt, and the sanding belts can be tightened and easily replaced;

[0034] First, when the support arm 14 is driven to move away from the U-shaped frame 1 by rotating the adjusting screw 22, the support arm 14 drives the second support wheel 26 to tighten the sand belt 18, and the sand belt 18 drives the second support wheel 26 to elastically expand and contract in the opposite direction along the guide shaft 16, so that the buffer spring 15 can support the sand belt 18. When the sand belt 18 receives a large impact deformation, the sand belt 18 can be buffered by the buffer spring to prevent the sand belt 18 from breaking;

[0035] Secondly, when the sanding belt 18 needs to be replaced, the adjusting screw 22 is rotated in the reverse direction to drive the support arm 14 to move toward the direction close to the U-shaped frame 1, so that the second support wheel 26 is separated from the sanding belt 18. At this time, the sanding belt 18 can be easily removed and replaced.

[0036] like Figure 1 and Figure 2 As shown, in order to facilitate the rotation of the adjusting screw, a rotating wheel 11 is coaxially provided at the end of the adjusting screw 22 away from the U-shaped frame 1. The rotating wheel 11 is connected to the end of the adjusting screw 22 by a plurality of connecting rods 12. The operator can rotate the adjusting screw 22 by holding the rotating wheel 11.

[0037] Furthermore, a mounting plate 20 is provided at the bottom of the U-shaped frame 1, and drive motors 19 are provided at both ends of the mounting plate 20, and the rotating shaft of the drive motor 19 is connected to the end of the first support wheel 3. The mounting plate 20 and the drive motor 19 constitute a drive device for driving the first support wheel 3 to rotate, and the sanding belt is driven by the drive device to rotate rapidly.

[0038] like Figure 2 As shown, the support arms 14 are respectively provided with positioning bolts 23 corresponding to the guide support rods 17. Tightening the positioning bolts 23 can abut against the guide support rods 17. In order to prevent the support arms 14 from being displaced under mechanical vibration conditions, after the sanding belt is replaced, the support arms can be fixed by tightening the positioning bolts 23.

[0039] Further, such as Figure 1 As shown, an L-shaped support plate 6 is provided between the two first support wheels 3 on the same side, one side of the L-shaped support plate 6 is connected to the side of the U-shaped frame 1, and the other side of the L-shaped support plate 6 is placed on the side of the sanding belt 18;

[0040] like Figure 2As shown, a support platform 21 is provided on the side of the L-shaped support plate 6 close to the sanding belt 18, one end of the support platform 21 is connected to the L-shaped support plate 6 via a connecting seat 5, the L-shaped support plate 6 and the support platform 21 are vertically arranged, and a gap is provided between the L-shaped support plate 6 and the support platform 21 for accommodating the sanding belt 18, because when the workpiece contacts the sanding belt 18, the sanding belt 18 is squeezed, and when the deformed sanding belt contacts the L-shaped support plate 6, the L-shaped support plate 6 supports the sanding belt.

[0041] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-station belt sander, comprising a base (2), a U-shaped frame (1) is installed on the top of the base (2), and the U-shaped frame (1) is opened downward, characterized in that: A support beam (13) is provided on one side of the top of the U-shaped frame (1); the support beam (13) and the side close to the U-shaped frame (1) are connected via a horizontal connecting frame (10), while the two ends of the support beam (13) are connected to the side of the U-shaped frame (1) via an oblique supporting frame (4); Two strip supports (8) are installed on the side surfaces of both sides of the U-shaped frame (1), a certain distance is set between the two strip supports (8), one end of the strip supports (8) away from the inclined support frame (4) extends outside the U-shaped frame (1), and a first bearing seat (7) is provided on the end of the strip supports (8), and a first support wheel (3) is rotatably installed in the first bearing seat (7); An adjusting screw (22) is respectively provided above both ends of the support beam (13), and both ends of the adjusting screw (22) are respectively located above the support beam (13) and the U-shaped frame (1), and both ends of the adjusting screw (22) are rotatably mounted in the third bearing seat (9), and the third bearing seat (9) is respectively mounted on the top of the support beam (13) and the U-shaped frame (1), and mounting seats (24) are also provided on the side surfaces of the two third bearing seats (9) located on the same adjusting screw (22), and the two mounting seats (24) are connected by a guide support rod (17), and a support arm (14) is movably penetrated on the guide support rod (17), and one end of the support arm (14) penetrates and is threadedly connected to the adjusting screw (22), and a fixed seat (27) is provided on the other end of the support arm (14) away from the U-shaped frame (1); A second bearing seat (25) is installed on a side of the fixed seat (27) away from the U-shaped frame (1), a second supporting wheel (26) is rotatably installed in the second bearing seat (25), two guide shafts (16) are vertically arranged on a side of the fixed seat (27) close to the U-shaped frame (1), the guide shafts (16) are movably passed through the ends of the supporting arms (14), and buffer springs (15) are sleeved on the guide shafts (16) between the fixed seat (27) and the supporting arms (14); the second supporting wheel (26) and the first supporting wheel (3) are respectively located on one side of the U-shaped frame (1) and are connected via a sanding belt (18); It also includes a driving device which is arranged at the bottom of the U-shaped frame (1) and connected to the first supporting wheel (3).

2. A double-station belt sander according to claim 1, characterized in that: A rotating wheel (11) is coaxially arranged at one end of the adjusting screw (22) away from the U-shaped frame (1), and the rotating wheel (11) and the end of the adjusting screw (22) are connected via a plurality of connecting rods (12).

3. A double-station belt sander according to claim 2, characterized in that: The support arms (14) are respectively provided with positioning bolts (23) corresponding to the guide support rods (17). The positioning bolts (23) can be turned to abut against the guide support rods (17).

4. A double-station belt sander according to claim 1, characterized in that: The driving device comprises a mounting plate (20) mounted on the bottom of the U-shaped frame (1), and driving motors (19) are respectively provided at both ends of the mounting plate (20), and the rotating shaft of the driving motor (19) is connected to the end of the first supporting wheel (3).

5. A double-station belt sander according to claim 1 or 4, characterized in that: An L-shaped support plate (6) is provided between the two first support wheels (3) on the same side, one side of the L-shaped support plate (6) is connected to the side of the U-shaped frame (1), and the other side of the L-shaped support plate (6) is placed on the side of the sanding belt (18); A support platform (21) is provided on one side of the L-shaped support plate (6) close to the sanding belt (18); one end of the support platform (21) is connected to the L-shaped support plate (6) via a connecting seat (5); the L-shaped support plate (6) and the support platform (21) are vertically arranged; and a gap for accommodating the sanding belt (18) is provided between the L-shaped support plate (6) and the support platform (21).

6. A double-station belt sander according to claim 1, characterized in that: An anti-dropping limit block is provided at one end of the guide shaft (16) away from the second supporting wheel (26).

Images