Abrasive belt grinding device with pressure detection function

Abstract

The utility model discloses an abrasive belt grinding device with a pressure detection function, which relates to the technical field of belt sanders, and particularly comprises a base, two mounting seats are symmetrically mounted on one side surface of a first bracket, a lead screw and at least one guide support shaft are arranged between the two mounting seats, two ends of the guide support shaft are respectively connected with the mounting seats, and the two ends of the guide support shaft are respectively connected with the first bracket. The two ends of the lead screw are rotationally connected with the mounting bases correspondingly, and an adjusting motor connected with the lead screw is further arranged at the bottom of the lower mounting base. The lead screw is a two-way lead screw, nuts are installed at the two ends of the lead screw, and a guide sleeve is arranged on each guide supporting shaft in a sliding and sleeving mode. When the abrasive belt tensioning device is used and the lead screw drives the nuts to move away from each other, the two first supporting wheels open and tension the abrasive belt at the same time, the abrasive belt can drive the second rectangular base to be pressed on the pressure sensor, after the pressure value sensed by the pressure sensor reaches a set value, the adjusting motor stops moving, and the abrasive belt is tensioned at the moment.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive belt machines, in particular to an abrasive belt grinding device with pressure detection. Background Art

[0002] A belt sander is a mechanical device used for surface grinding, polishing and trimming of objects. It includes a grinding belt, a motor, a driving wheel, a driven wheel and a transmission device. During normal use, the grinding belt will be put on the driving wheel and the driven wheel. The rotation of the driving wheel drives the grinding belt to transmit at high speed, thereby achieving grinding of the object surface.

[0003] When the existing belt sander is in use, the surface of the belt sander itself will be worn out as the belt sander contacts and rubs against the object. Therefore, the belt sander needs to be replaced frequently. The tension of the existing belt sander is mostly adjusted manually, but the tension of the belt sander cannot be accurately controlled, resulting in the belt sander being too tight or loose. To this end, we propose a belt sander with pressure detection. Utility Model Content

[0004] In view of the deficiency that the sanding belts on the existing sanding belt machines have no tension detection, resulting in the sanding belts being loose and not being noticed, the utility model provides a sanding belt grinding device with pressure detection, which has the advantages of automatically tensioning the sanding belt and being able to monitor the sanding belt pressure, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a belt grinding device with pressure detection, including a base, a first bracket is vertically installed on the top of the base, two mounting seats are symmetrically installed on one side of the first bracket, a lead screw and at least one guide support shaft are arranged between the two mounting seats, the two ends of the guide support shaft are respectively connected to the mounting seats, and the two ends of the lead screw are respectively rotatably connected to the mounting seats, and an adjusting motor connected to the lead screw is also arranged at the bottom of the mounting seat located below;

[0006] The lead screw is a bidirectional lead screw and a screw nut is installed on both ends of the lead screw. A guide sleeve is slidably sleeved on the guide support shaft. The guide sleeve and the screw nut are connected by a connecting plate. A support extending outward horizontally is provided on the side of the guide sleeve away from the screw nut. A first bearing seat is provided on the side of the end of the support. A first support wheel is rotatably installed in each first bearing seat.

[0007] A fixing seat is installed in the middle of a side of the first bracket away from the mounting seat, a first rectangular seat is provided on one side of the fixing seat, the first rectangular seat is vertically arranged with the base, a second rectangular seat is vertically connected to a side of the first rectangular seat close to the fixing seat, the second rectangular seat extends toward the first supporting wheel, support shafts are installed at both ends of the connection between the second rectangular seat and the first rectangular seat, both ends of the support shaft are rotatably installed in the second bearing seat, the second bearing seats are fixed on the side of the fixing seat, the second rectangular seat is placed on the side of the fixing seat, a pressure sensor is installed on the surface of the fixing seat, and the second rectangular seat rotates around the support shaft and is placed on the surface of the pressure sensor;

[0008] A third bearing seat is installed on the side of the other end of the first rectangular seat, and a second support wheel is rotatably installed in the third bearing seat. The second support wheel is parallel to the first support wheel, and a transmission wheel is provided below the second support wheel. The transmission wheel is installed on a driving motor, and the driving motor is installed on a base, and the transmission wheel, the second support wheel and the first support wheel are connected by a sanding belt; a control cabinet is also included, and a controller is arranged in the control cabinet, and the controller is respectively connected to the pressure sensor, the driving motor and the regulating motor through wires.

[0009] Preferably, a protective plate is provided on a side of the mounting seat away from the first supporting wheel, and the protective plate extends to a side of the mounting seat away from the first bracket.

[0010] Preferably, the control cabinet is installed on the side of the protection plate, and a display screen and buttons are provided on the surface of the sealing cover of the control cabinet, and the display screen and buttons are respectively connected to the controller.

[0011] Preferably, an L-shaped support plate is provided between the two first support wheels, the upper and lower ends of the L-shaped support plate are respectively spaced a certain distance from the first support wheels, and the other end of the L-shaped support plate is placed on the side of the sanding belt with a gap fit between the two.

[0012] Preferably, a second bracket is provided below the first support wheel, the bottom of the second bracket is connected to the base, the second bracket is located on the outside of the sanding belt, and a placement platform is installed on the top of the second bracket, the placement platform and the sanding belt are gap-matched, and a certain distance is provided between the second bracket and the sanding belt.

[0013] Preferably, at least one triangular reinforcement plate is provided inside the L-shaped support plate, between the bottom of the placement platform and the second bracket.

[0014] Compared with the prior art, when the utility model is in use, when the lead screw drives the nut to move away from each other, the two first support wheels simultaneously stretch and tighten the sanding belt, and the sanding belt will drive the second rectangular seat to press on the pressure sensor. After the pressure value sensed by the pressure sensor reaches the set value, the motor is adjusted to stop moving. At this time, the sanding belt has been tensioned, and whether the sanding belt is loose can also be detected by the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .

[0017] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 .

[0018] Figure 4 This is a schematic diagram of the structure of the utility model Figure 4 .

[0019] Figure 5 This is a schematic diagram of the structure of the utility model after the protection plate is installed.

[0020] Figure 6 This is a schematic diagram of the structure of the utility model after the protective plate and the sanding belt are installed.

[0021] Figure 7 It is a structural schematic diagram of the pressure detection mechanism of the utility model.

[0022] In the figure: 1. base; 2. drive motor; 3. nut; 4. connecting plate; 5. guide sleeve; 6. first bracket; 7. mounting seat; 8. support; 9. first support wheel; 10. first bearing seat; 11. L-shaped support plate; 12. placement platform; 13. second bracket; 14. adjustment motor; 15. guide support shaft; 16. lead screw; 17. protection plate; 18. display screen; 19. control cabinet; 20. button; 21. transmission wheel; 22. second support wheel; 23. first rectangular seat; 24. fixed seat; 25. second bearing seat; 26. second rectangular seat; 27. third bearing seat; 28. support shaft; 29. ​​pressure sensor; 30. sanding belt. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figures 1 to 7The utility model provides a technical solution: a belt grinding device with pressure detection, wherein two mounting seats 7 are symmetrically installed on one side of a first bracket 6, the bottom of the first bracket 6 is vertically installed on a base 1, and a plurality of support pads are installed at the bottom edge of the base 1, and the base 1 can be fixed on the ground or placed on the ground.

[0025] like Figure 1 As shown, a lead screw 16 and at least one guide support shaft 15 are provided between the two mounting seats 7. In this embodiment, there is only one guide support shaft 15, and both ends of the guide support shaft 15 are respectively connected to the mounting seats 7, while both ends of the lead screw 16 are respectively rotatably connected to the mounting seats 7. The two are connected through bearings. In order to make the center of gravity of the entire device tilt downward to maintain stability, an adjustment motor 14 connected to the lead screw 16 is provided at the bottom of the mounting seat 7 located below, and the adjustment motor 14 is used to drive the lead screw 16 to rotate;

[0026] The lead screw 16 is a bidirectional lead screw and a nut 3 is installed on both ends thereof. A guide sleeve 5 is slidably sleeved on the guide support shaft 15. The guide sleeve 5 is connected to the nut 3 through a connecting plate 4, so that the nut 3 and the guide sleeve 5 are connected as a whole, and the guide sleeve 5 moves with the movement of the nut.

[0027] The supporting components and pressure detection mechanism of the abrasive belt 30 are described below. The supporting components of the abrasive belt 30 include a support 8 which is arranged on a side of the guide sleeve 5 away from the nut 3 and extends outward horizontally. A first bearing seat 10 is provided on the side of the end of the support 8. A first supporting wheel 9 is rotatably installed in each first bearing seat 10. The first supporting wheel 9 is arranged horizontally.

[0028] like Figure 4 As shown, the pressure detection mechanism includes a fixing seat 24 arranged in the middle of one side of the first bracket 6 away from the mounting seat 7, and a first rectangular seat 23 is arranged on one side of the fixing seat 24. The first rectangular seat 23 is arranged vertically downward with the base 1, as shown in FIG. Figure 7 As shown, the first rectangular seat 23 and the side of the fixing seat 24 are also perpendicular, and a driving motor 2 is provided on the side of the bottom of the first bracket 6 away from the first supporting wheel 9, and a transmission wheel 21 is connected to the rotating shaft of the driving motor 2. The transmission wheel 21 and the first supporting wheel 9 are located on the same side and parallel to each other;

[0029] A second rectangular seat 26 is vertically connected to one side of the first rectangular seat 23 close to the fixing seat 24. Figure 4 and Figure 7As shown, the second rectangular seat 26 and the first rectangular seat 23 form an L-shaped structure, the second rectangular seat 26 extends toward the first support wheel 9, and support shafts 28 are installed at both ends of the connection between the second rectangular seat 26 and the first rectangular seat 23. Both ends of the support shaft 28 are rotatably installed in the second bearing seat 25, specifically, they are installed together through bearings, and the second bearing seats 25 are fixed on the side of the fixed seat 24, so that the second rectangular seat 26 is placed on the side of the fixed seat 24, and the second rectangular seat 26 can rotate around the support shaft 28;

[0030] like Figure 7 As shown, a pressure sensor 29 is installed on the surface of the fixed seat 24, the second rectangular seat 26 rotates around the support shaft 28 and is placed on the surface of the pressure sensor 29, a third bearing seat 27 is installed on the side of the other end of the first rectangular seat 23, and a second support wheel 22 is rotatably installed in the third bearing seat 27. When the second rectangular seat 26 is placed on the pressure sensor 29, the second support wheel 22 is located above the first support wheel 9, and the second support wheel 22 is parallel to the first support wheel 9.

[0031] like Figure 6 As shown, the transmission wheel 21, the second support wheel 22 and the first support wheel 9 are connected by the sanding belt 30. When the driving motor 2 rotates, the sanding belt 30 can be driven to rotate quickly on the second support wheel 22 and the first support wheel 9, so that the sanding belt can grind the workpiece.

[0032] like Figure 5 As shown, a protective plate 17 is provided on the side of the mounting seat 7 away from the first support wheel 9, and the protective plate 17 extends to the side of the mounting seat 7 away from the first bracket 6. A control cabinet 19 is installed on the side of the protective plate 17. A controller is provided in the control cabinet 19, and the controller is respectively connected to the pressure sensor 29, the drive motor 2, and the adjustment motor 14 through wires.

[0033] Specifically, when the utility model is in use, when the adjusting motor 14 rotates, it can drive the lead screw 16 to rotate. Since the lead screw 16 is a bidirectional lead screw, the lead screw 16 can drive the screw nuts 3 at both ends thereof to move toward each other or away from each other. When the two screw nuts 3 move toward each other, that is, at this time, the two first support wheels 9 are close to each other, and the edge of the sanding belt is loose, so it is convenient to replace the sanding belt;

[0034] When the lead screw 16 drives the nut 3 to move away from each other, the distance between the two first support wheels 9 increases, so that the two first support wheels 9 support the sanding belt at the same time. As the supporting force of the sanding belt becomes stronger and stronger, the sanding belt will drive the second support wheel 22 to deflect toward the first support wheel 9, so that the second rectangular seat 26 is pressed on the pressure sensor 29. After the pressure value felt by the pressure sensor 29 reaches the set value, the regulating motor 14 stops moving, and the sanding belt has been tensioned at this time;

[0035] like Figure 5 As shown, a button 20 and an alarm (not numbered) are also provided on the sealing cover. The alarm, the display screen 18 and the button 20 are respectively connected to the controller. When the relaxation pressure of the sanding belt exceeds a preset value, an alarm prompts.

[0036] Furthermore, an L-shaped support plate 11 is provided between the two first support wheels 9, and a certain distance is provided between the upper and lower ends of the L-shaped support plate 11 and the first support wheel 9 respectively to avoid hindering the up and down movement of the first support wheel 9, and the other end of the L-shaped support plate 11 is placed on the side of the sanding belt 30 and there is a gap between the two; a second bracket 13 is provided below the first support wheel 9, and the bottom of the second bracket 13 is connected to the base 1, and the second bracket 13 is located on the outside of the sanding belt 30, and a placing platform 12 is installed on the top of the second bracket 13, and there is a gap between the placing platform 12 and the sanding belt 30, and there is a certain distance between the second bracket 13 and the sanding belt 30. When grinding the workpiece, the operator can place his hands on the placing platform 12, such as Figure 4 and Figure 5 As shown, at least one triangular reinforcement plate is provided inside the L-shaped support plate 11, between the bottom of the placement platform 12 and the second bracket 13, so that the L-shaped support plate 11 and the placement platform 12 have better support.

[0037] 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. Furthermore, 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.

[0038] 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 belt grinding device with pressure detection, comprising a base (1), a first bracket (6) being vertically mounted on the top of the base (1), two mounting seats (7) being symmetrically mounted on one side of the first bracket (6), a lead screw (16) and at least one guide support shaft (15) being arranged between the two mounting seats (7), two ends of the guide support shaft (15) being respectively connected to the mounting seats (7), and two ends of the lead screw (16) being respectively rotatably connected to the mounting seats (7), and an adjusting motor (14) connected to the lead screw (16) being also arranged at the bottom of the mounting seat (7) located below; The lead screw (16) is a bidirectional lead screw and a screw nut (3) is installed on both ends thereof. A guide sleeve (5) is slidably sleeved on the guide support shaft (15). The guide sleeve (5) and the screw nut (3) are connected via a connecting plate (4). The invention is characterized in that: A support (8) extending outward horizontally is provided on the side of the guide sleeve (5) away from the nut (3), a first bearing seat (10) is provided on the side of the end of the support seat (8), and a first supporting wheel (9) is rotatably mounted in each first bearing seat (10); A fixed seat (24) is installed in the middle of a side of the first bracket (6) away from the mounting seat (7), a first rectangular seat (23) is provided on one side of the fixed seat (24), the first rectangular seat (23) is vertically arranged with the base (1), a second rectangular seat (26) is vertically connected to a side of the first rectangular seat (23) close to the fixed seat (24), the second rectangular seat (26) extends toward the first supporting wheel (9), support shafts (28) are installed at both ends of the connection between the second rectangular seat (26) and the first rectangular seat (23), both ends of the support shaft (28) are rotatably installed in the second bearing seat (25), the second bearing seat (25) is fixed on the side of the fixed seat (24), the second rectangular seat (26) is placed on the side of the fixed seat (24), and a pressure sensor (29) is installed on the surface of the fixed seat (24), the second rectangular seat (26) rotates around the support shaft (28) and is placed on the surface of the pressure sensor (29); A third bearing seat (27) is installed at the side surface of the other end of the first rectangular seat (23), and a second support wheel (22) is rotatably installed in the third bearing seat (27). The second support wheel (22) is parallel to the first support wheel (9), and a transmission wheel (21) is provided below the second support wheel (22). The transmission wheel (21) is installed on a drive motor (2), and the drive motor (2) is installed on a base (1), and the transmission wheel (21), the second support wheel (22) and the first support wheel (9) are connected by a sanding belt (30); and a control cabinet (19) is also included. A controller is provided in the control cabinet (19), and the controller is respectively connected to a pressure sensor (29), a drive motor (2) and an adjustment motor (14) by wires.

2. The belt grinding device with pressure detection according to claim 1, characterized in that: A protection plate (17) is provided on one side of the mounting seat (7) away from the first supporting wheel (9), and the protection plate (17) extends to the side of the mounting seat (7) away from the first bracket (6).

3. The belt grinding device with pressure detection according to claim 2, characterized in that: The control cabinet (19) is installed on the side of the protection plate (17). The surface of the sealing cover of the control cabinet (19) is provided with a display screen (18) and a button (20). The display screen (18) and the button (20) are respectively connected to the controller.

4. The belt grinding device with pressure detection according to claim 1, characterized in that: An L-shaped support plate (11) is provided between the two first support wheels (9), a certain distance is provided between the upper and lower ends of the L-shaped support plate (11) and the first support wheels (9), and the other end of the L-shaped support plate (11) is placed on the side of the sanding belt (30) with a clearance fit between the two.

5. The belt grinding device with pressure detection according to claim 4, characterized in that: A second bracket (13) is provided below the first supporting wheel (9), the bottom of the second bracket (13) is connected to the base (1), the second bracket (13) is located outside the sanding belt (30), and a placement platform (12) is installed on the top of the second bracket (13), the placement platform (12) and the sanding belt (30) are clearance-matched, and a certain distance is provided between the second bracket (13) and the sanding belt (30).

6. The belt grinding device with pressure detection according to claim 5, characterized in that: At least one triangular reinforcement plate is provided inside the L-shaped support plate (11), at the bottom of the placement platform (12) and between the second bracket (13).

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