Multi-station vertical abrasive belt adjusting mechanism and vertical belt sander

Abstract

The invention discloses a multi-station vertical abrasive belt adjusting mechanism and a vertical belt sander. The multi-station vertical abrasive belt adjusting mechanism comprises a vertical fixed base, a floating support, a fixed driving wheel, a floating driven wheel, a plurality of parallel first abrasive belts, a floating compensation assembly and a plurality of parallel movable contact assemblies. The floating support is driven by the floating compensation assembly to move so as to adjust the tightness of the first abrasive belt on the whole floating driven wheel, and the independent first abrasive belt can be accurately and finely adjusted in combination with adjustment of the movable contact assembly so as to prevent deformation of the first abrasive belt and ensure the grinding and polishing effect of the abrasive belt.

Description

Technical Field

[0001] The present application relates to the technical field of multi-station vertical sanding belt machines, and more specifically, to a multi-station vertical sanding belt adjustment mechanism and a vertical sanding belt machine. Background Art

[0002] The core feature of a vertical belt sander is that the sanding belt runs perpendicular to the ground. This design is particularly suitable for sanding, chamfering, deburring, and finishing plate edges and large flat surfaces. It is also convenient for handheld operation of smaller workpieces. Its main structure is based on a general-purpose belt sander, optimized for a "vertical" layout and user experience.

[0003] According to the application number 202223367235.3, a vertical floating sanding belt machine is disclosed, including a sanding belt machine body, a connecting plate, an active sanding belt wheel, a passive sanding belt wheel, a floating compensation device and an adjustment device. The connecting plate is slidably connected to the sanding belt machine body, and the floating compensation device is located between the active sanding belt wheel and the passive sanding belt wheel; the floating compensation device includes a mounting plate, one end of the mounting plate is provided with a telescopic device fixing plate, the telescopic device is connected to the telescopic device fixing plate, the telescopic end of the telescopic device is connected to a floating compensation wheel mounting frame, a guide device is provided on the mounting plate along the telescopic direction of the telescopic device, the guide device is connected to the guide plate, and a floating compensation wheel is provided on the floating compensation wheel mounting frame; the adjustment device includes a cylinder mounting plate connected to the sanding belt machine body, a deviation adjustment cylinder is provided on the cylinder mounting plate, the telescopic end of the deviation adjustment cylinder is connected to the deviation adjustment wheel mounting frame, and the deviation adjustment wheel mounting frame is provided with an deviation adjustment wheel.

[0004] Although the above-mentioned vertical floating sanding belt machine has the advantage of being not easy to break, its defect is at least that the vertical floating sanding belt machine is not suitable for grinding multiple workpieces at the same time, resulting in low machine efficiency. Therefore, it is necessary to design a multi-station vertical sanding belt machine.

[0005] The technical difficulty of the multi-station vertical belt sander lies in the need to grind workpieces at multiple stations at the same time. Due to the inconsistent surface tolerances of the unpolished workpieces themselves, and the fact that the sanding belt of the multi-station vertical belt sander itself will gradually stretch and lengthen due to frictional heat and mechanical tension during operation, the initial tension is reduced, which can easily lead to straightness deviations between multiple workpieces and the sanding belt surface when they are being grinded at the same time. For example, some workpieces are in close contact with the sanding belt surface, while some workpieces are not in close contact with the sanding belt surface, making some workpieces prone to grinding failure.

[0006] Therefore, the existing technology needs to be improved. Summary of the Invention

[0007] The purpose of this application is to provide a multi-station vertical sanding belt adjustment mechanism and a vertical sanding belt machine, aiming to solve the technical problem of how to adjust the tightness of the sanding belt of the multi-station vertical sanding belt machine in the prior art.

[0008] To achieve the above objectives, the technical solution adopted in this application is:

[0009] In a first aspect, the present application provides a multi-station vertical sanding belt adjustment mechanism, comprising:

[0010] Vertical fixed base;

[0011] a floating bracket, the floating bracket being movably disposed on an upper portion of the vertical fixed base along a first direction;

[0012] A fixed driving wheel, the fixed driving wheel being rotatably disposed at the lower portion of the vertical fixed base;

[0013] a floating passive wheel, the floating passive wheel being rotatably disposed on the floating support;

[0014] a plurality of parallel first abrasive belts, wherein the plurality of first abrasive belts are wound around the fixed driving wheel and the floating driven wheel;

[0015] a floating compensation assembly, the floating compensation assembly being disposed on the vertical fixed base and being drivingly connected to the floating bracket, the floating compensation assembly being used to drive the floating bracket to move along the first direction, so that the floating bracket moves up and down to adjust the tightness of the first abrasive belt;

[0016] A plurality of parallel movable contact components are arranged in cooperation with a plurality of first sanding belts, and the movable contact components are arranged at the front side of the vertical fixed base. The movable contact components are used to support and adjust the corresponding first sanding belts so that the first sanding belts are in contact with the workpiece.

[0017] In one embodiment, the floating support comprises:

[0018] A lifting base, the lifting base being fixed to the vertical fixed base;

[0019] a first bracket body, the first bracket body being rotatably connected to the floating passive wheel;

[0020] A lifting rod is connected to the first bracket body, and the lifting rod is embedded in the lifting base and is slidably connected to the lifting base. The lifting rod is used to be driven and connected to the floating compensation component.

[0021] In one embodiment, the lifting base comprises:

[0022] a first bottom plate, the first bottom plate being fixed to the vertical fixed base;

[0023] a first side plate, the first side plate being arranged on an upper side of the first bottom plate;

[0024] The second side plate is arranged at a lower side position of the first bottom plate, and the lifting rod passes through the first side plate and the second side plate in sequence and is slidably connected with the first side plate and the second side plate.

[0025] In one embodiment, the floating compensation component includes:

[0026] a first elastic member, wherein the first elastic member is sleeved on the lifting rod, and one end of the first elastic member abuts against the lifting rod, and the other end abuts against the second side plate;

[0027] A driving component is connected to the lifting rod in a driving manner. With the help of the driving action of the driving component, the lifting rod is moved up and down, thereby driving the floating passive wheel to move up and down.

[0028] In one embodiment, the driving component includes:

[0029] A driving cylinder, the driving cylinder being fixed to the vertical fixed base and having a piston rod;

[0030] a first connecting bracket, the first connecting bracket being fixed to the piston rod;

[0031] a rotating bracket, the rotating bracket being hinged to the first connecting bracket;

[0032] The second connecting bracket is hinged to the rotating bracket, the second connecting bracket is located on a side of the rotating bracket away from the first connecting bracket, the second connecting bracket is used to be fixedly connected to the lifting rod, and the second connecting bracket is fixedly connected to the first elastic member.

[0033] In one embodiment, the rotating bracket comprises:

[0034] A rotating base, the rotating base being arranged on the vertical fixed base;

[0035] a first rotating shaft, the first rotating shaft being disposed on the rotating base;

[0036] The first rotating plate has a middle portion sleeved on the first rotating shaft and rotatably connected to the first rotating shaft. One end of the first rotating plate is hinged to the first connecting bracket, and the other end is hinged to the second connecting bracket.

[0037] In one embodiment, the second connecting bracket includes:

[0038] a second fixing plate, wherein a first through hole is provided on the second fixing plate, wherein the first through hole is connected to the lifting rod and abuts against the first elastic member;

[0039] a first opening, the first opening being formed on the second fixing plate and communicating with the first through hole;

[0040] a limiting bolt, the limiting bolt being arranged on a side of the second fixing plate close to the first opening, the limiting bolt being used to clamp the first opening so that the second fixing plate is fixed to the lifting rod;

[0041] A U-shaped groove is provided on a side of the fixed plate away from the first opening, a second rotating shaft is provided in the U-shaped groove, and the first rotating plate is embedded in the U-shaped groove and hinged to the second rotating shaft.

[0042] In one embodiment, the movable contact assembly comprises:

[0043] A contact base, the contact base being arranged on the vertical fixed base, and having a plurality of parallel first mounting portions;

[0044] a plurality of sliding bases, each of the sliding bases being fixedly connected to the contact base via the first mounting portion; a first inclined surface being provided on a side of the sliding base facing away from the contact base, the first inclined surface being thinner at the top and thicker at the bottom, and a sliding groove being provided on the first inclined surface;

[0045] a plurality of contact plates, wherein the front surface of the contact plates abuts against the first abrasive belt, the back surface of the contact plates is provided with a second inclined surface that matches the first inclined surface, the thickness of the second inclined surface being larger at the top and smaller at the bottom, and a slider is provided on the second inclined surface, the slider being configured to be embedded in the slide groove and slidably connected to the slide groove;

[0046] a contact connecting plate, the contact connecting plate being arranged on the contact plate and extending from the contact plate toward one side of the sliding base;

[0047] An adjusting bolt is connected to the contact connecting plate and the sliding base. By means of rotational adjustment of the adjusting bolt, the contact plate moves up and down along the sliding base to adjust the tightness of the corresponding first abrasive belt.

[0048] In one embodiment, the fixed driving wheel includes:

[0049] A driving wheel body, the driving wheel body being rotatably connected to the vertical fixed base;

[0050] a plurality of spaced-apart connecting convex rings, each of which is disposed on the outer wall of the driving wheel body and is used to connect to the first abrasive belt, and each of which is provided with an anti-slip spiral groove;

[0051] The floating passive wheel comprises:

[0052] A passive wheel body, wherein the active wheel body is rotatably connected to the floating support;

[0053] a plurality of spaced connection grooves, each of which is provided on the outer wall of the driven wheel body and is used to connect with the first abrasive belt;

[0054] A limiting component is further provided between the floating support and the vertical fixed base, and the limiting component includes:

[0055] A limiting connecting plate, the limiting connecting plate is arranged on the floating bracket, and the limiting connecting plate is provided with an elongated hole;

[0056] A position limiting fixing seat, the position limiting fixing seat is arranged on the vertical fixing base;

[0057] A limit adjustment rod passing through the elongated hole and connected to the limit fixing seat;

[0058] A limiting nut is threadedly connected to the limiting adjustment rod, and the limiting nut is used to fix the limiting adjustment rod and the limiting connecting plate.

[0059] In a second aspect, based on the multi-station vertical sanding belt adjustment mechanism provided in the above embodiment, the present application further provides a vertical sanding belt machine, which includes the multi-station vertical sanding belt adjustment mechanism described above. Thus, the vertical sanding belt machine can have all the technical features and beneficial effects of the multi-station vertical sanding belt adjustment mechanism described above.

[0060] The multi-station vertical sanding belt adjustment mechanism and vertical sanding belt machine provided by the present application have at least the following beneficial effects:

[0061] The present application discloses a multi-station vertical sanding belt adjustment mechanism and a vertical sanding belt machine, wherein the multi-station vertical sanding belt adjustment mechanism includes a vertical fixed base, a floating bracket, a fixed driving wheel, a floating passive wheel, a plurality of parallel first sanding belts, a floating compensation component and a plurality of parallel movable contact components, the floating bracket is movably arranged on the upper part of the vertical fixed base along a first direction, the fixed driving wheel is rotatably arranged on the lower part of the vertical fixed base, the floating passive wheel is rotatably arranged on the floating bracket, and the plurality of first sanding belts are all wound around the fixed driving wheel and the The floating passive wheel, the floating compensation component is arranged on the vertical fixed base, and the floating compensation component is connected to the floating bracket drive, the floating compensation component is used to drive the floating bracket to move along the first direction, so that the floating bracket moves up and down to adjust the tightness of the first sanding belt, and a number of the movable contact components are arranged in coordination with a number of the first sanding belts, the movable contact component is arranged at the front position of the vertical fixed base, and the movable contact component is used to support and adjust the corresponding first sanding belt so that the first sanding belt contacts the workpiece. In this application, the floating bracket is driven to move by the floating compensation component to adjust the tightness of the first sanding belt on the entire floating passive wheel, and combined with the adjustment of the movable contact component, the independent first sanding belt can be precisely fine-tuned to prevent the first sanding belt from deforming and ensure the sanding and polishing effect of the sanding belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0063] Figure 1 A schematic structural diagram of a multi-station vertical sanding belt adjustment mechanism provided in an embodiment of the present application;

[0064] Figure 2 A schematic diagram of the back structure of the multi-station vertical sanding belt adjustment mechanism provided in an embodiment of the present application;

[0065] Figure 3 A schematic structural diagram of a floating compensation assembly provided in an embodiment of the present application;

[0066] Figure 4 A schematic structural diagram of a second connecting bracket provided in an embodiment of the present application;

[0067] Figure 5 A schematic diagram of the assembly structure of the movable contact assembly provided in an embodiment of the present application;

[0068] Figure 6 A schematic structural diagram of a movable contact assembly provided in an embodiment of the present application;

[0069] Figure 7 A schematic diagram of the disassembled structure of the movable contact assembly provided in an embodiment of the present application;

[0070] Figure 8 A three-dimensional diagram of a vertical belt sander provided in an embodiment of the present application;

[0071] Figure 9 A schematic structural diagram of the limit assembly provided in an embodiment of the present application.

[0072] Among them, the reference numerals in the figures are:

[0073] 100, vertical fixed base; 200, floating bracket; 300, fixed driving wheel; 400, floating passive wheel; 500, first sanding belt; 600, floating compensation assembly; 700, movable contact assembly; 800, limit assembly; 210, lifting base; 220, first bracket body; 230, lifting rod; 211, first bottom plate; 212, first side plate; 213, second side plate; 310, driving wheel body; 320, connecting convex ring; 321, anti-slip spiral groove; 410, passive wheel body; 420, connecting groove; 610, first elastic member; 620, driving component; 621, driving cylinder; 622, first connecting bracket Frame; 630, rotating bracket; 640, second connecting bracket; 631, rotating base; 632, first rotating axis; 633, first rotating plate; 641, second fixed plate; 642, first opening; 643, limiting bolt; 644, U-shaped groove; 645, first through hole; 710, contact base; 720, sliding base; 730, contact plate; 740, contact connecting plate; 750, adjusting bolt; 721, first inclined surface; 722, slide groove; 731, second inclined surface; 732, slider; 810, limiting connecting plate; 811, long strip hole; 820, limiting fixing seat; 830, limiting adjustment rod; 840, limiting nut. DETAILED DESCRIPTION

[0074] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0075] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0076] Example 1:

[0077] See also Figure 1 and Figure 2 The present embodiment provides a multi-station vertical sanding belt adjustment mechanism, which includes a vertical fixed base 100, a floating bracket 200, a fixed driving wheel 300, a floating passive wheel 400, a plurality of parallel first sanding belts 500, a floating compensation assembly 600 and a plurality of parallel movable contact assemblies 700. The floating bracket 200 is movably arranged on the upper part of the vertical fixed base 100 along a first direction, the fixed driving wheel 300 is rotatably arranged on the lower part of the vertical fixed base 100, the floating passive wheel 400 is rotatably arranged on the floating bracket 200, and the plurality of first sanding belts 500 are all wound around the fixed driving wheel 300 and the floating compensation assembly 600. The passive wheel 400 and the floating compensation assembly 600 are arranged on the vertical fixed base 100, and the floating compensation assembly 600 is driven and connected to the floating bracket 200. The floating compensation assembly 600 is used to drive the floating bracket 200 to move along the first direction, so that the floating bracket 200 moves up and down to adjust the tightness of the first sanding belt 500. A number of movable contact assemblies 700 are arranged in coordination with a number of first sanding belts 500. The movable contact assembly 700 is arranged at the front side of the vertical fixed base 100. The movable contact assembly 700 is used to support and adjust the corresponding first sanding belt 500 so that the first sanding belt 500 contacts the workpiece.

[0078] In this embodiment, several parallel first abrasive belts 500 are wound around the fixed driving wheel 300 and the floating driven wheel 400. When the drive source drives the fixed driving wheel 300 to rotate, the fixed driving wheel 300 can drive the several parallel first abrasive belts 500 to rotate synchronously, thereby achieving simultaneous grinding and polishing of multiple workpieces. For example, four parallel first abrasive belts 500 can be installed on the fixed driving wheel 300 and the floating driven wheel 400, thereby forming four workstations for simultaneous grinding and polishing of four workpieces. During grinding and polishing, the workpiece contacts the first abrasive belts 500 and is located at the position of the movable contact assembly 700. That is, the first abrasive belts 500 are supported by the movable contact assembly 700 and abut the workpiece.

[0079] Among them, the floating bracket 200 is movably arranged on the vertical fixed base 100, that is, the floating bracket 200 can move up and down along the vertical fixed base 100, and the floating bracket 200 can drive the floating passive wheel 400 to move up and down, so as to simultaneously adjust the tightness of several parallel first sanding belts 500, and the adjustment of a single first sanding belt 500 needs to be adjusted through the corresponding movable contact component 700, so that its first sanding belt 500 is in close contact with the workpiece, which is equivalent to the floating compensation component 600 being used to adjust the tightness of the first sanding belt 500 on the entire floating passive wheel 400, and the movable contact component 700 can accurately fine-tune the single first sanding belt 500 to prevent the first sanding belt 500 from deformation.

[0080] Therefore, in this embodiment, the floating bracket 200 is driven to move by the floating compensation component 600 to adjust the tightness of the first sanding belt 500 on the entire floating passive wheel 400, and combined with the adjustment of the movable contact component 700, the independent first sanding belt 500 can be precisely fine-tuned to prevent the first sanding belt 500 from deformation and ensure the sanding and polishing effect of the sanding belt.

[0081] Specifically, see Figure 2 The floating bracket 200 includes: a lifting base 210, a first bracket body 220 and a lifting rod 230. The lifting base 210 is fixed to the vertical fixed base 100. The first bracket body 220 is rotatably connected to the floating passive wheel 400. The lifting rod 230 is connected to the first bracket body 220. The lifting rod 230 is embedded in the lifting base 210 and is slidably connected to the lifting base 210. The lifting rod 230 is used to be driven and connected to the floating compensation component 600.

[0082] In this embodiment, the floating passive wheel 400 is embedded in the first bracket body 220 and is rotatably connected to the first bracket body 220. A lifting rod 230 is provided at the bottom of the first bracket body 220. The lifting rod 230 can be located in the middle position of the bottom of the first bracket body 220. The lifting rod 230 is embedded in the lifting base 210 and is slidably connected to the lifting base 210. The lifting rod 230 is connected to the floating compensation assembly 600. The floating compensation assembly 600 can drive the lifting rod 230 to move up and down along the lifting base 210 to adjust the first sanding belt 500 on the entire floating passive wheel 400.

[0083] Specifically, see Figure 2 The lifting base 210 includes: a first bottom plate 211, a first side plate 212 and a second side plate 213. The first bottom plate 211 is fixed to the vertical fixed base 100, the first side plate 212 is arranged at the upper side of the first bottom plate 211, and the second side plate 213 is arranged at the lower side of the first bottom plate 211. The lifting rod 230 passes through the first side plate 212 and the second side plate 213 in sequence and is slidably connected to the first side plate 212 and the second side plate 213.

[0084] In this embodiment, the first side plate 212, the first bottom plate 211 and the second side plate 213 are connected in sequence to form a groove structure, and the lifting rod 230 passes through the first side plate 212 and the second side plate 213 in sequence and is slidably connected to the first side plate 212 and the second side plate 213, wherein the first side plate 212 is arranged at the upper side position of the first bottom plate 211. If the lifting rod 230 moves downward, the first side plate 212 has a limiting function. The first side plate 212 can provide support for the first bracket body 220, blocking the first bracket body 220 from moving downward and preventing the first bracket body 220 from falling. The second side plate 213 cooperates with the first side plate 212, and the second side plate 213 has a guiding function, so that the lifting rod 230 slides up and down more stably.

[0085] Specifically, see Figure 2 The floating compensation assembly 600 includes: a first elastic member 610 and a driving member 620. The first elastic member 610 is sleeved on the lifting rod 230, and one end of the first elastic member 610 is in contact with the lifting rod 230, and the other end is in contact with the second side plate 213. The driving member 620 is driven and connected to the lifting rod 230. With the help of the driving action of the driving member 620, the lifting rod 230 is displaced up and down, thereby driving the floating passive wheel 400 to move up and down.

[0086] In this embodiment, the driving component 620 is drivably connected to the lifting rod 230. The driving component 620 is used to drive the lifting rod 230 upward or downward to adjust the tension of the first abrasive belt 500 on the floating driven wheel 400. The first elastic member 610 has a buffering effect. For example, the first elastic member 610 can be made of a compression spring. The compression spring is mounted on the lifting rod 230 and abuts against the second side plate 213. When the floating driven wheel 400, the first bracket body 220, and the lifting rod 230 move downward along the lifting base 210 due to their own weight, the driving component 620 can drive the lifting rod 230 upward, while the compression spring provides downward pulling force to the lifting rod 230, so that the driving component 620 and the compression spring reach a balanced state, thereby improving the stability of the first abrasive belt 500 on the floating driven wheel 400. For example, the driving component 620 can be made of a driving cylinder 621. The air pressure of the driving cylinder 621 fluctuates to a certain extent during operation, and the compression spring can offset the air pressure fluctuation, so that the first sanding belt 500 is in a stable state.

[0087] Specifically, see Figure 3 The driving component 620 includes: a driving cylinder 621, a first connecting bracket 622, a rotating bracket 630 and a second connecting bracket 640. The driving cylinder 621 is fixed to the vertical fixed base 100. The driving cylinder 621 has a piston rod. The first connecting bracket 622 is fixed to the piston rod. The rotating bracket 630 is hinged to the first connecting bracket 622. The second connecting bracket 640 is hinged to the rotating bracket 630. The second connecting bracket 640 is located on the side of the rotating bracket 630 away from the first connecting bracket 622. The second connecting bracket 640 is used to be fixedly connected to the lifting rod 230, and the second connecting bracket 640 is fixedly connected to the first elastic member 610.

[0088] In this embodiment, the driving cylinder 621 is connected to the lifting rod 230 through the first connecting bracket 622, the rotating bracket 630 and the second connecting bracket 640. This arrangement allows the driving cylinder 621 to be installed on one side of the lifting rod 230, that is, the driving cylinder 621 is installed on the side of the lifting rod 230, rather than on the end of the lifting rod 230. This can make full use of the space in the width direction of the vertical fixed base 100, and at the same time can reduce the size of the entire vertical fixed base 100 in the height direction.

[0089] The driving cylinder 621 drives the piston rod to move, and the piston rod drives the rotating bracket 630 to rotate through the first connecting bracket 622. The rotating bracket 630 drives the second connecting bracket 640 to move up or down through rotation, and then the second connecting bracket 640 drives the lifting rod 230 to move up and down, with flexible movement and high stability.

[0090] Specifically, see Figure 3The rotating bracket 630 includes: a rotating base 631, a first rotating shaft 632 and a first rotating plate 633. The rotating base 631 is set on the vertical fixed base 100, the first rotating shaft 632 is set on the rotating base 631, the middle part of the first rotating plate 633 is sleeved on the first rotating shaft 632 and is rotatably connected to the first rotating shaft 632, one end of the first rotating plate 633 is hinged to the first connecting bracket 622, and the other end is hinged to the second connecting bracket 640.

[0091] In this embodiment, the driving cylinder 621 drives the piston rod to move, and the piston rod drives the first rotating plate 633 to rotate around the first rotating axis 632 through the first connecting bracket 622. The first rotating plate 633 drives the lifting rod 230 to move linearly up and down through the second connecting bracket 640, with flexible movement and high stability.

[0092] Specifically, see Figure 4 The second connecting bracket 640 includes: a second fixing plate 641, a first opening 642, a limiting bolt 643 and a U-shaped groove 644. The second fixing plate 641 is provided with a first through hole 645, the first through hole 645 is connected to the lifting rod 230 and abuts against the first elastic member 610, the first opening 642 is opened in the second fixing plate 641, and the first opening 642 is communicated with the first through hole 645, the limiting bolt 643 is provided on the side of the second fixing plate 641 close to the first opening 642, the limiting bolt 643 is used to clamp the first opening 642 so that the second fixing plate 641 is fixed to the lifting rod 230, the U-shaped groove 644 is provided on the side of the fixing plate away from the first opening 642, a second rotating shaft is provided in the U-shaped groove 644, the first rotating plate 633 is embedded in the U-shaped groove 644 and is hinged to the second rotating shaft.

[0093] In this embodiment, the first opening 642 can be clamped by the limiting bolt 643, so that the first through hole 645 fixes the lifting rod 230, and the second fixing plate 641 is provided with a U-shaped groove 644 on the side facing the rotating bracket 630. The first rotating plate 633 is embedded in the U-shaped groove 644 and hinged to the U-shaped groove 644 through the second rotating shaft. The compression spring is sleeved on the lifting rod 230, and one end of the compression spring is fixed to the second side plate 213, and the other end of the compression spring is in contact with the second fixing plate 641, that is, the driving cylinder 621 acts on the second connecting bracket 640 through the rotating bracket 630, and the second connecting bracket 640 simultaneously offsets the air pressure fluctuation of the driving cylinder 621 through the compression spring, thereby providing stable support for the first sanding belt 500.

[0094] Specifically, see Figure 5 、 Figure 6 and Figure 7The movable contact assembly 700 includes: a contact base 710, a plurality of sliding bases 720, a plurality of contact plates 730, a contact connecting plate 740 and an adjusting bolt 750. The contact base 710 is arranged on the vertical fixed base 100. The contact base 710 is provided with a plurality of parallel first mounting portions. The sliding base 720 is fixedly connected to the contact base 710 through the first mounting portion. The sliding base 720 is provided with an inclined first inclined surface 721 on the side away from the contact base 710. The thickness of the first inclined surface 721 is smaller at the top and larger at the bottom. A sliding groove 722 is provided on the first inclined surface 721. The front side of the contact plate 730 abuts against the first sanding belt 500. The contact plate The back of 730 is provided with a second inclined surface 731 that matches the first inclined surface 721. The thickness of the second inclined surface 731 is larger at the top and smaller at the bottom. A slider 732 is provided on the second inclined surface 731. The slider 732 is used to be embedded in the slide groove 722 and slidably connected with the slide groove 722. The contact connecting plate 740 is provided on the contact plate 730. The contact connecting plate 740 extends from the contact plate 730 to one side of the sliding base 720. The adjusting bolt 750 is connected to the contact connecting plate 740 and the sliding base 720. With the help of the rotation adjustment of the adjusting bolt 750, the contact plate 730 moves up and down along the sliding base 720 to adjust the tightness of the corresponding first abrasive belt 500.

[0095] In this embodiment, the first abrasive belt 500 is wound around the fixed driving wheel 300 and the floating driven wheel 400. The movable contact assembly 700 is disposed on the side of the first abrasive belt 500 facing the workpiece. The movable contact assembly 700 can support the first abrasive belt 500 and enable the first abrasive belt 500 to contact the workpiece. A contact base 710 is mounted on the vertical fixed base 100. The contact base 710 is provided with a plurality of parallel sliding bases 720. For example, the contact base 710 is provided with four parallel sliding bases 720, each sliding base 720 being provided corresponding to each first abrasive belt 500. The sliding base 720 is provided with a first inclined surface 721 with a small upper portion and a large lower portion, and a sliding groove 722 is provided on the first inclined surface 721. The back of the contact plate 730 is provided with a second inclined surface 731 with a large upper portion and a small lower portion, and a slider 732 is provided on the second inclined surface 731. The slider 732 is embedded in the sliding groove 722 and is slidably connected to the sliding groove 722. In addition, a contact connecting plate 740 is provided on the contact plate 730. The contact connecting plate 740 extends from the contact plate 730 to one side of the sliding base 720. The contact connecting plate 740 is used to install an adjusting bolt 750. The adjusting bolt 750 is provided on the contact plate 730. The screw threaded connection 750 passes through the contact connecting plate 740 and is threadedly connected to the sliding base 720. By rotating the adjusting bolt 750, the adjusting bolt 750 is screwed into the sliding base 720. The contact connecting plate 740 drives the contact plate 730 to move downward, that is, the slider 732 moves downward along the slide groove 722, causing the second inclined surface 731 to slide on the first inclined surface 721. During the downward movement of the second inclined surface 731, the contact plate 730 will move toward the side of the first sanding belt 500, that is, the contact plate 730 will push the first sanding belt 500 outward to achieve the purpose of accurately fine-tuning the first sanding belt 500.

[0096] Specifically, see Figure 2 The fixed driving wheel 300 includes a driving wheel body 310 and a plurality of spaced connecting protrusions 320. The driving wheel body 310 is rotatably connected to the vertical fixed base 100. The connecting protrusions 320 are provided on the outer wall of the driving wheel body 310. The connecting protrusions 320 are used to connect to the first abrasive belt 500, and an anti-slip spiral groove 321 is provided on the connecting protrusions 320.

[0097] The floating driven wheel 400 includes: a driven wheel body 410 and a plurality of spaced connection grooves 420 . The driving wheel body 310 is rotatably connected to the floating bracket 200 . The connection grooves 420 are provided on the outer wall of the driven wheel body 410 and are used to connect to the first sanding belt 500 .

[0098] In this embodiment, the fixed driving wheel 300 and the floating passive wheel 400 are provided with several parallel first sanding belts 500. The fixed driving wheel 300 is connected to each first sanding belt 500 through several spaced connecting convex rings 320, and the connecting convex rings 320 are provided with anti-slip spiral grooves 321, so the transmission performance is stable. The floating passive wheel 400 is connected to each first sanding belt 500 through several spaced connecting grooves 420, which increases the high-speed stability and operation safety of the first sanding belt 500.

[0099] Specifically, see Figure 8 and Figure 9 A limiting assembly 800 is also arranged between the floating bracket 200 and the vertical fixed base 100. The limiting assembly 800 includes: a limiting connecting plate 810, a limiting fixing seat 820, a limiting adjustment rod 830 and a limiting nut 840. The limiting connecting plate 810 is arranged on the floating bracket 200. A long hole 811 is provided on the limiting connecting plate 810. The limiting fixing seat 820 is arranged on the vertical fixed base 100. The limiting adjustment rod 830 passes through the long hole 811 and is connected to the limiting fixing seat 820. The limiting nut 840 is threadedly connected to the limiting adjusting rod 830. The limiting nut 840 is used to fix the limiting adjustment rod 830 and the limiting connecting plate 810.

[0100] In this embodiment, after the floating bracket 200 is fixed at a certain height by the floating compensation assembly 600, the limit adjustment rod 830 can be fixed to the limit connection plate 810 via the limit nut 840 to secure the floating bracket 200 to the vertical fixed base 100. For example, when the height of the floating bracket 200 needs to be adjusted, the limit nut 840 can be loosened, and then the height of the floating bracket 200 can be adjusted using the floating compensation assembly 600. After adjustment, the limit nut 840 can be tightened again to secure the floating bracket 200 to the vertical fixed base 100, thereby improving the stability of the floating bracket 200.

[0101] Example 2:

[0102] See also Figure 8 Based on the multi-station vertical sanding belt adjustment mechanism provided in the above embodiment, the present application further provides a vertical sanding belt machine, including the multi-station vertical sanding belt adjustment mechanism. Thus, the vertical sanding belt machine can have all the technical features and beneficial effects of the multi-station vertical sanding belt adjustment mechanism described above.

[0103] In summary, the present application discloses a multi-station vertical sanding belt adjustment mechanism and a vertical sanding belt machine, wherein the multi-station vertical sanding belt adjustment mechanism includes a vertical fixed base, a floating bracket, a fixed driving wheel, a floating passive wheel, a plurality of parallel first sanding belts, a floating compensation assembly and a plurality of parallel movable contact assemblies, the floating bracket is movably arranged on the upper part of the vertical fixed base along a first direction, the fixed driving wheel is rotatably arranged on the lower part of the vertical fixed base, the floating passive wheel is rotatably arranged on the floating bracket, the plurality of first sanding belts are all wound around the fixed driving wheel and the floating passive wheel, the floating compensation assembly is arranged on the vertical fixed base, and the floating compensation assembly is driven and connected to the floating bracket, the floating compensation assembly is used to drive the floating bracket to move along the first direction, so that the floating bracket moves up and down to adjust the tightness of the first sanding belt, the plurality of movable contact assemblies are arranged in coordination with the plurality of first sanding belts, the movable contact assembly is arranged at the front side position of the vertical fixed base, and the movable contact assembly is used to support the first sanding belt so that the first sanding belt contacts the workpiece. In this application, the floating bracket is driven to move by the floating compensation component to adjust the tightness of the first sanding belt on the entire floating passive wheel, and combined with the adjustment of the movable contact component, the independent first sanding belt can be precisely fine-tuned to prevent deformation of the first sanding belt and ensure the sanding and polishing effect of the sanding belt.

[0104] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A multi-station vertical sand belt adjustment mechanism, characterized in that: include: Vertical fixed base; a floating bracket, the floating bracket being movably disposed on an upper portion of the vertical fixed base along a first direction; A fixed driving wheel, the fixed driving wheel being rotatably disposed at the lower portion of the vertical fixed base; a floating passive wheel, the floating passive wheel being rotatably disposed on the floating support; a plurality of first abrasive belts arranged in parallel, wherein the first abrasive belts are all wound around the fixed driving wheel and the floating driven wheel; a floating compensation assembly, the floating compensation assembly being disposed on the vertical fixed base and being drivingly connected to the floating bracket, the floating compensation assembly being used to drive the floating bracket to move along the first direction, so that the floating bracket moves up and down to adjust the tightness of the first abrasive belt; A plurality of parallel movable contact components are arranged in cooperation with a plurality of first sanding belts, and the movable contact components are arranged at the front side of the vertical fixed base. The movable contact components are used to support and adjust the corresponding first sanding belts so that the first sanding belts are in contact with the workpiece.

2. The multi-station vertical sanding belt adjustment mechanism according to claim 1, characterized in that: The floating support comprises: A lifting base, the lifting base being fixed to the vertical fixed base; a first bracket body, the first bracket body being rotatably connected to the floating passive wheel; A lifting rod is connected to the first bracket body, and the lifting rod is embedded in the lifting base and is slidably connected to the lifting base. The lifting rod is used to be driven and connected to the floating compensation component.

3. The multi-station vertical sanding belt adjustment mechanism according to claim 2, characterized in that: The lifting base comprises: a first bottom plate, the first bottom plate being fixed to the vertical fixed base; a first side plate, the first side plate being arranged on an upper side of the first bottom plate; The second side plate is arranged at a lower side position of the first bottom plate, and the lifting rod passes through the first side plate and the second side plate in sequence and is slidably connected with the first side plate and the second side plate.

4. The multi-station vertical sanding belt adjustment mechanism according to claim 3, characterized in that: The floating compensation component includes: a first elastic member, wherein the first elastic member is sleeved on the lifting rod, and one end of the first elastic member abuts against the lifting rod, and the other end abuts against the second side plate; A driving component is connected to the lifting rod in a driving manner. With the help of the driving action of the driving component, the lifting rod is moved up and down, thereby driving the floating passive wheel to move up and down.

5. The multi-station vertical sanding belt adjustment mechanism according to claim 4, characterized in that: The driving component includes: A driving cylinder, the driving cylinder being fixed to the vertical fixed base and having a piston rod; a first connecting bracket, the first connecting bracket being fixed to the piston rod; a rotating bracket, the rotating bracket being hinged to the first connecting bracket; The second connecting bracket is hinged to the rotating bracket, the second connecting bracket is located on a side of the rotating bracket away from the first connecting bracket, the second connecting bracket is used to be fixedly connected to the lifting rod, and the second connecting bracket is fixedly connected to the first elastic member.

6. The multi-station vertical sanding belt adjustment mechanism according to claim 5, characterized in that: The rotating bracket includes: A rotating base, the rotating base being arranged on the vertical fixed base; a first rotating shaft, the first rotating shaft being disposed on the rotating base; The first rotating plate has a middle portion sleeved on the first rotating shaft and rotatably connected to the first rotating shaft. One end of the first rotating plate is hinged to the first connecting bracket, and the other end is hinged to the second connecting bracket.

7. The multi-station vertical sanding belt adjustment mechanism according to claim 6, characterized in that: The second connecting bracket includes: a second fixing plate, wherein a first through hole is provided on the second fixing plate, wherein the first through hole is connected to the lifting rod and abuts against the first elastic member; a first opening, the first opening being formed on the second fixing plate and communicating with the first through hole; a limiting bolt, the limiting bolt being arranged on a side of the second fixing plate close to the first opening, the limiting bolt being used to clamp the first opening so that the second fixing plate is fixed to the lifting rod; A U-shaped groove is provided on a side of the fixed plate away from the first opening, a second rotating shaft is provided in the U-shaped groove, and the first rotating plate is embedded in the U-shaped groove and hinged to the second rotating shaft.

8. The multi-station vertical sanding belt adjustment mechanism according to claim 1, characterized in that: The movable contact assembly comprises: A contact base, the contact base being arranged on the vertical fixed base, and having a plurality of parallel first mounting portions; a plurality of sliding bases, each of the sliding bases being fixedly connected to the contact base via the first mounting portion; a first inclined surface being provided on a side of the sliding base facing away from the contact base, the first inclined surface being thinner at the top and thicker at the bottom, and a sliding groove being provided on the first inclined surface; a plurality of contact plates, wherein the front surface of the contact plates abuts against the first abrasive belt, the back surface of the contact plates is provided with a second inclined surface that matches the first inclined surface, the thickness of the second inclined surface being larger at the top and smaller at the bottom, and a slider is provided on the second inclined surface, the slider being configured to be embedded in the slide groove and slidably connected to the slide groove; a contact connecting plate, the contact connecting plate being arranged on the contact plate and extending from the contact plate toward one side of the sliding base; An adjusting bolt is connected to the contact connecting plate and the sliding base. By means of rotational adjustment of the adjusting bolt, the contact plate moves up and down along the sliding base to adjust the tightness of the corresponding first abrasive belt.

9. The multi-station vertical sanding belt adjustment mechanism according to claim 1, characterized in that: The fixed driving wheel comprises: A driving wheel body, the driving wheel body being rotatably connected to the vertical fixed base; a plurality of spaced-apart connecting convex rings, each of which is disposed on the outer wall of the driving wheel body and is used to connect to the first abrasive belt, and each of which is provided with an anti-slip spiral groove; The floating passive wheel comprises: A passive wheel body, wherein the active wheel body is rotatably connected to the floating support; a plurality of spaced connection grooves, each of which is provided on the outer wall of the driven wheel body and is used to connect with the first abrasive belt; A limiting component is further provided between the floating support and the vertical fixed base, and the limiting component includes: A limiting connecting plate, the limiting connecting plate is arranged on the floating bracket, and the limiting connecting plate is provided with an elongated hole; A position limiting fixing seat, the position limiting fixing seat is arranged on the vertical fixing base; A limit adjustment rod passing through the elongated hole and connected to the limit fixing seat; A limiting nut is threadedly connected to the limiting adjustment rod, and the limiting nut is used to fix the limiting adjustment rod and the limiting connecting plate.

10. A vertical belt sander, characterized in that: It comprises the multi-station vertical sanding belt adjustment mechanism as described in any one of claims 1 to 9.

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