Rotary sanding device and rotary sanding machine

Abstract

The rotary sanding device is characterized in that the rotary sanding device comprises a fixed ring frame, a motor support, a motor, a rotary supporting seat and a rotary sanding mechanism, the rotary supporting seat is movably suspended in the middle of the fixed ring frame, the motor is fixed to the motor support, a gear transmission mechanism is connected between the rotary supporting seat and the motor, and the rotary sanding mechanism is fixed to the rotary supporting seat. The rotary supporting seat can be driven by the motor to rotate in the fixed ring frame; and the rotary sanding mechanism is arranged on the rotary supporting seat and is used for sanding the fed column type workpiece. The device is good in stability, high in machining precision and high in production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of woodworking machinery, and more particularly to a sanding device. Background Art

[0002] The existing sanding machine is to tension the sanding belt on two or more pulleys, and the sanding belt generates cutting motion through the rotation of the pulleys to achieve sanding and polishing of the workpiece. Sanding belt polishing is a kind of elastic grinding, with small system vibration and good stability, stable polishing speed, so the surface quality of the polished workpiece is high, and it is widely used. However, this polishing method is not suitable for polishing traditional column furniture parts. In the past, it has always been done manually, and its disadvantages are: large labor demand, high processing intensity, harsh environment and low processing efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a rotary sanding device which is stable, reliable, easy to operate and has high production efficiency.

[0004] Another object of the present invention is to provide a rotary sanding machine with high production efficiency.

[0005] The present invention adopts the following technical solutions to achieve the above-mentioned purpose: a rotary sanding device, characterized in that it includes a fixed ring frame, a motor support, a motor, a rotary support seat, and a rotary sanding mechanism. The rotary support seat is movably suspended in the middle of the fixed ring frame, the motor is fixed on the motor support, and a gear transmission mechanism is connected between the rotary support seat and the motor, so that the rotary support seat can rotate in the fixed ring frame under the drive of the motor; the rotary sanding mechanism is arranged on the rotary support seat to perform sanding treatment on the columnar workpiece fed in.

[0006] As a further illustration of the above scheme, the fixed ring frame includes a fixed ring seat and a guide ring, and more than two busbar mounting seats are movably arranged on the guide ring, and the busbar mounting seats are connected and fixed to the slewing support seat.

[0007] Furthermore, a through hole 1 for allowing the workpiece to be processed to pass through is provided in the middle of the rotary support seat, and a rotary sanding mechanism is provided outside the through hole 1, and performs sanding treatment on the workpiece to be processed while the workpiece passes through it.

[0008] Furthermore, the gear transmission mechanism includes a motor gear and a gear ring. The gear ring is fixed on the back of the slewing support seat. The motor support is provided with a second through hole. A positioning ring is correspondingly provided on the outer edge of the second through hole. The gear ring is sleeved outside the positioning ring. The motor gear is connected to drive the gear ring so that the gear ring can rotate relative to the positioning ring.

[0009] Furthermore, the rotary sanding mechanism comprises two sets of grinding wheel sanding parts arranged on a rotary support seat, and the grinding wheel sanding parts comprise a sanding movable seat and a sanding motor and a grinding wheel arranged thereon, and the sanding motor is connected to drive the grinding wheel.

[0010] Furthermore, the sanding motor is connected to drive the grinding wheel by a belt, and a belt tension adjustment mechanism is provided between the sanding motor and the grinding wheel for adjusting the tightness of the belt.

[0011] Furthermore, the belt tension adjustment mechanism includes an adjustment bracket and an adjustment wheel, the adjustment bracket is provided with an adjustment slot, the sanding movable seat is provided with a fastener corresponding to the adjustment slot, and the adjustment wheel is movably pressed against the belt.

[0012] Furthermore, a slider guide rod mechanism and a motor drive mechanism are arranged between the sanding movable seat and the rotating support seat. The motor drive mechanism includes a driving motor, a screw rod, a screw rod sleeve, and a connecting piece. The screw rod is arranged in parallel with the slider guide rod mechanism. The driving motor is connected to drive the screw rod. The screw rod sleeve is sleeved on the screw rod. The connecting piece is connected between the screw rod nut and the sanding movable seat. During the process of the driving motor driving the screw rod to rotate, the sanding movable seat can be driven to move along the guide direction of the slider guide rod mechanism, so that it can be used to polish workpieces of different diameters.

[0013] Furthermore, the screw in the motor drive mechanism is provided with a forward thread segment and a reverse thread segment, and the forward thread segment and the reverse thread segment are respectively corresponding to the sanding movable seats of the two groups of grinding wheel sanding parts through the transmission of the screw nut and the connecting piece, so that the two groups of sanding movable seats can run synchronously in reverse, the control is simple and efficient, and the stability and accuracy of sanding can also be improved.

[0014] A rotary sanding machine, characterized in that it comprises a feeding belt line, a rotary sanding machine frame, multiple groups of rotary sanding devices, a positioning track assembly, and an upper conveying pressure wheel device. The multiple groups of rotary sanding devices are sequentially arranged on the rotary sanding machine frame, the feeding belt line is arranged at the input end of the first rotary sanding device, the rotary sanding machine frame is provided with multiple conveying booms, the upper conveying pressure wheel group and the positioning track assembly are respectively arranged on the conveying boom, and the positioning track assembly is provided with a lower conveying roller group corresponding to the upper conveying pressure wheel group.

[0015] The beneficial effects that can be achieved by the present invention using the above technical solution are:

[0016] The present invention adopts a rotary sanding structure which is mainly composed of a fixed ring frame, a motor support, a motor, a rotary support seat and a rotary sanding mechanism. The rotary support seat is movably suspended in the middle of the fixed ring frame, the motor is fixed on the motor support, and a gear transmission mechanism is connected between the rotary support seat and the motor, so that the rotary support seat can rotate in the fixed ring frame under the drive of the motor; the rotary sanding mechanism is arranged on the rotary support seat, and in the process of conveying the columnar workpiece forward, the rotary support seat rotates while cooperating with the operating sanding of the rotary sanding mechanism, so that the fed columnar workpiece can be sanded 360 degrees, without stopping for clamping, and the continuous sanding function of multiple workpieces can be realized, with extremely high production efficiency and good processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the rotary sanding machine of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the rotary sanding device of the invention;

[0019] Figure 3 It is a schematic structural diagram of the rotary sanding device of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the rotary sanding device of the present invention;

[0021] Figure 5 It is a schematic diagram of the rotary sanding mechanism structure;

[0022] Figure 6 It is a schematic diagram of the rotary sanding mechanism structure.

[0023] Description of the accompanying drawings: 1. Feed belt line 2. Rotary sanding machine frame 3. Rotary sanding device 3-1. Fixed ring frame 3-11. Fixed ring seat 3-12. Guide ring 3-13. Busbar mounting seat 3-2. Motor support 3-21. Through hole 2 3-3. Motor 3-4. Rotary support seat 3-41. Through hole 1 3-5. Rotary sanding mechanism 3-51. Sanding movable seat 3-52. Sanding motor 3-53. Grinding wheel 3-54. Belt tension adjustment mechanism 3-541. Adjustment bracket 3-54 2. Adjusting wheel 3-543, adjusting slide 3-6, gear transmission mechanism 3-61, motor gear 3-62, gear ring 3-63, positioning ring 3-7, slider guide rod mechanism 3-8, motor drive mechanism 3-81, drive motor 3-82, screw 3-83, screw sleeve 3-84, connector 4, positioning track assembly 5, upper conveying pressure wheel device 6, material receiving platform 7, fixed bracket 8, cross bar 9, rod sleeve 10, suspension rod 11, feed conveying wheel 12, hanging arm 13, lower conveying roller group. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "at least" means one or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the invention, unless otherwise specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “below”, and “above” a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “above”, “below”, and “below” a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] The following is a further description of the specific implementation of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0029] like Figure 1-Figure 6As shown, the present invention is a rotary sanding device, which is used in a rotary sanding machine. The rotary sanding machine structurally includes a feeding belt line 1, a rotary sanding machine frame 2, multiple groups of rotary sanding devices 3, a positioning track assembly 4, an upper conveying pressure wheel device 5 and a material receiving platform 6. Multiple groups of fixed brackets 7 are respectively arranged on both sides of the feeding belt line, and a cross bar 8 is connected between the fixed brackets on both sides. A rod sleeve 9 is arranged on the cross bar, and a vertically arranged suspension rod 10 is installed on the rod sleeve. A feeding conveying wheel 11 is arranged on the suspension rod, which cooperates with the feeding belt line 1 below to realize the forward conveying function of the columnar workpiece. A plurality of rotary sanding devices 3 are sequentially arranged on the rotary sanding machine frame 2, a feeding belt line is arranged at the input end of the first rotary sanding device 3, a supporting chassis is arranged at the lower part of the rotary sanding machine frame 2, a crossbeam is arranged at the upper part of the rotary sanding machine frame 2, a plurality of conveying arms 12 are suspended on the crossbeam, an upper conveying pressure wheel group and a positioning track assembly are respectively arranged on the conveying suspension arm 12, and a lower conveying roller group 13 is arranged on the positioning track assembly to correspond to the upper conveying pressure wheel group. The positioning track assembly structurally includes a bottom plate, an upper L-shaped plate, and a lower L-shaped plate, the bottom plate is arranged horizontally, the upper L-shaped plate and the lower L-shaped plate are distributed up and down, and the assembly is a T-shaped structure; wherein, the two sides of the lower L-shaped plate are distributed left and right and supported on the bottom plate; the lower conveying roller group 13 is installed on the lower L-shaped plate, so that the columnar workpiece can be positioned and supported by the lower conveying roller group 13 and the upper L-shaped plate during the forward feeding process, and combined with the top pressure effect of the upper conveying pressure wheel group, the entire feeding process is stable and has little jitter. In this embodiment, there are three rotary sanding devices and four conveying arms, so that each rotary sanding device has a conveying arm on the front and rear sides, thereby ensuring the stability of the forward conveying process of the columnar workpiece and ensuring the processing accuracy.

[0030] The rotary sanding device 3 includes a fixed ring frame 3-1, a motor support 3-2, a motor 3-3, a rotary support seat 3-4, and a rotary sanding mechanism 3-5. The rotary support seat 3-4 is movably suspended in the middle of the fixed ring frame 3-1, the motor 3-3 is fixed on the motor support 3-2, and a gear transmission mechanism 3-6 is connected between the rotary support seat 3-4 and the motor 3-3, so that the rotary support seat can rotate in the fixed ring frame under the drive of the motor; the rotary sanding mechanism 3-5 is arranged on the rotary support seat 3-4 to perform sanding treatment on the columnar workpiece fed in. The fixed ring frame 3-1 includes a fixed ring seat 3-11 and a guide ring 3-12. Two busbar mounting seats 3-13 are movably arranged on the guide ring 3-12. The busbar mounting seats are connected and fixed to the slewing support seat. The busbar mounting seats are provided with busbars for supplying power to the motor structure installed on the slewing support seat, thereby avoiding the line entanglement problem caused by direct wiring when the slewing support seat 3-4 rotates relative to the fixed ring frame 3-1. It is worth noting that the busbar is a readily available accessory, and its specific structure is not described in detail here. A through hole 1-3-41 is provided in the middle of the slewing support seat 3-4 for the workpiece to be processed to pass through. The rotary sanding mechanism is arranged outside the through hole 1-3-41, and performs sanding treatment on the workpiece to be processed while it passes through. The gear transmission mechanism 3-6 includes a motor gear 3-61 and a gear ring 3-62. The motor gear and the gear ring are meshed for transmission. The gear ring is fixed to the back of the slewing support seat. The motor support 3-2 is provided with a through hole 2 3-21. The through hole 2 3-21 is concentric with the through hole 1 3-41. A positioning ring 3-63 is correspondingly provided on the outer edge of the through hole 2 3-21. The gear ring 3-62 is sleeved outside the positioning ring 3-63. When the motor is running, the motor drives the gear ring through the motor gear connection, so that the gear ring can rotate relative to the positioning ring. At the same time, the slewing support seat also rotates synchronously.

[0031] The rotary sanding mechanism 3-5 includes two sets of grinding wheel sanding parts arranged on a rotary support seat, and the grinding wheel sanding parts include a sanding movable seat 3-51 and a sanding motor 3-52 and a grinding wheel 3-53 arranged thereon, and the sanding motor is connected to drive the grinding wheel. The sanding motor is connected to drive the grinding wheel by a belt, and a belt tension adjustment mechanism 3-54 is arranged between the sanding motor and the grinding wheel for adjusting the tightness of the belt. The belt tension adjustment mechanism 3-54 includes an adjustment bracket 3-541 and an adjustment wheel 3-542, and an adjustment slot 5-543 is arranged on the adjustment bracket 3-541. A fastener corresponding to the adjustment slot is arranged on the sanding movable seat 3-51. By changing the position of the fastener in the adjustment slot, the adjustment wheel can be kept active to press on the belt, and the belt can always be kept in a tensioned state. In this embodiment, the adjustment bracket is in the form of a rod, and the adjustment slot 5-543 is a strip-shaped slot hole set in the middle of the rod. A through hole corresponding to the adjustment wheel 3-542 is set in the sanding movable seat, so that the wheel axle of the adjustment wheel 3-542 can pass through the through hole to connect and fix with the adjustment bracket. In this way, the adjustment wheel can be hidden in the back of the sanding movable seat 3-51, which will not interfere with the grinding wheel and ensure the stability of the sanding process. It is worth noting that the adjustment bracket 3-541 can also be directly fixed on the sanding movable seat 3-51, and a shaft rod is set on the axis core of the adjustment wheel. The shaft rod is passed through the adjustment slot and fixed by fasteners, which can also realize the position adjustment of the adjustment wheel.

[0032] Furthermore, a slider guide rod mechanism 3-7 and a motor drive mechanism 3-8 are arranged between the sanding movable seat 3-51 and the swivel support seat 3-4. The motor drive mechanism 3-8 includes a driving motor 3-81, a screw rod 3-82, a screw thread sleeve 3-83, and a connecting piece 3-84. The screw rod is arranged in parallel with the slider guide rod mechanism 3-7. The driving motor is connected to drive the screw rod 3-82. The screw thread sleeve 3-83 is sleeved on the screw rod. The connecting piece is connected between the screw nut and the sanding movable seat. When the driving motor drives the screw rod to rotate, the sanding movable seat can be driven to move along the guide direction of the slider guide rod mechanism, so that it can be used to polish workpieces of different diameters. The screw in the motor drive mechanism 3-8 is provided with a forward thread segment and a reverse thread segment, and the forward thread segment and the reverse thread segment are respectively corresponding to the sanding movable seats of the two groups of grinding wheel sanding parts through the transmission of the screw nut and the connecting piece, so that the two groups of sanding movable seats can run synchronously in reverse, the control is simple and efficient, and the stability and accuracy of sanding can be improved.

[0033] It is worth noting that one of the features of the rotary sanding machine of the present technical solution is that the sanding mechanism as a whole rotates 360 degrees around the workpiece. Therefore, in addition to processing columnar furniture parts, it can also be used to process other forms of workpieces and perform sanding around the side of the workpiece.

[0034] Compared with the prior art, the present invention arranges a rotary sanding mechanism on a rotary support seat. During the process of conveying the columnar workpiece forward, the rotary support seat rotates while cooperating with the rotary sanding mechanism to perform 360-degree sanding on the fed columnar workpiece, thereby realizing the continuous sanding function of multiple workpieces and having high production efficiency.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A rotary sanding device, characterized in that: It includes a fixed ring frame, a motor support, a motor, a rotary support seat, and a rotary sanding mechanism. The rotary support seat is movably suspended in the middle of the fixed ring frame, the motor is fixed on the motor support seat, and a gear transmission mechanism is connected between the rotary support seat and the motor, so that the rotary support seat can rotate in the fixed ring frame under the drive of the motor; the rotary sanding mechanism is arranged on the rotary support seat to perform sanding treatment on the columnar workpiece fed in.

2. A rotary sanding device according to claim 1, characterized in that: The fixed ring frame comprises a fixed ring seat and a guide ring. More than two busbar mounting seats are movably arranged on the guide ring. The busbar mounting seats are connected and fixed to the slewing support seat.

3. A rotary sanding device according to claim 1, characterized in that: A through hole 1 for allowing a workpiece to be processed to pass through is arranged in the middle of the rotary support seat, and a rotary sanding mechanism is arranged outside the through hole 1 and performs sanding treatment on the workpiece to be processed while the workpiece passes through.

4. A rotary sanding device according to claim 1, characterized in that: The gear transmission mechanism includes a motor gear and a gear ring. The gear ring is fixed on the back of the slewing support seat. The motor support is provided with a second through hole. A positioning ring is correspondingly provided on the outer edge of the second through hole. The gear ring is sleeved outside the positioning ring. The motor gear is connected to drive the gear ring so that the gear ring can rotate relative to the positioning ring.

5. A rotary sanding device according to claim 1, characterized in that: The rotary sanding mechanism comprises two sets of grinding wheel sanding parts arranged on a rotary support seat, the grinding wheel sanding parts comprise a sanding movable seat and a sanding motor and a grinding wheel arranged thereon, and the sanding motor is connected to drive the grinding wheel.

6. A rotary sanding device according to claim 5, characterized in that: The sanding motor is connected with a belt to drive the grinding wheel, and a belt tension adjustment mechanism is arranged between the sanding motor and the grinding wheel.

7. A rotary sanding device according to claim 6, characterized in that: The belt tension adjustment mechanism comprises an adjustment bracket and an adjustment wheel. The adjustment bracket is provided with an adjustment slot. The sanding movable seat is provided with a fastener corresponding to the adjustment slot. The adjustment wheel is movably pressed on the belt.

8. The rotary sanding device according to claim 1, characterized in that: A slider guide rod mechanism and a motor drive mechanism are arranged between the sanding movable seat and the rotary support seat. The motor drive mechanism includes a drive motor, a screw rod, a screw thread sleeve, and a connecting piece. The screw rod and the slider guide rod mechanism are arranged in parallel. The drive motor is connected to drive the screw rod. The screw thread sleeve is sleeved on the screw rod. The connecting piece is connected between the screw nut and the sanding movable seat.

9. A rotary sanding device according to claim 8, characterized in that: The screw in the motor drive mechanism is provided with a forward thread segment and a reverse thread segment. The forward thread segment and the reverse thread segment are respectively corresponding to the sanding movable seats installed on the two groups of grinding wheel sanding parts through the transmission of the screw nut and the connecting piece, so that the two groups of sanding movable seats can run synchronously in reverse.

10. A rotary sanding machine, characterized in that: It includes a feeding belt line, a rotary sanding machine frame, multiple groups of rotary sanding devices as described in any one of claims 1 to 9, a positioning track assembly, and an upper conveying pressure wheel device. The multiple groups of rotary sanding devices are arranged on the rotary sanding machine frame in sequence, the feeding belt line is arranged at the input end of the first rotary sanding device, the rotary sanding machine frame is provided with multiple conveying booms, the upper conveying pressure wheel group and the positioning track assembly are respectively arranged on the conveying boom, and the positioning track assembly is provided with a lower conveying roller group corresponding to the upper conveying pressure wheel group.

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