An automatic belt replacing device

Abstract

The present application relates to a kind of polishing device, especially a kind of sand belt automatic replacement device, comprising: rack, take band device, the take band device is installed on the rack, for removing sand belt from sand belt polisher;The belt device is installed on the rack, and no less than one, for the sand belt is inserted into the sand belt polisher;The pusher device is installed on the rack, and is inserted in the take band device and belt device, respectively for removing sand belt from take band device, and the sand belt on the belt device is pushed to sand belt polisher.The sand belt automatic replacement device is removed by take band device, then the sand belt is installed on sand belt polisher by belt device and pusher device, overall structure is simple, sand belt replacement speed is fast, improves the overall efficiency of polishing, reduces polishing cost, while multiple specifications sand belt can be automatically replaced on a device.

Description

TECHNICAL FIELD

[0001] The present application relates to a polishing device, in particular to a sand belt automatic replacement device. BACKGROUND

[0002] The sand belt replacement of the existing sand belt polishing machine is mainly replaced by manual, when the sand belt is replaced manually, the sand belt is first taken off, and then a new sand belt is installed, when the sand belt is installed, the sand belt needs to be sleeved on three driving wheels, therefore, the efficiency of the manual sand belt replacement is low, the overall polishing efficiency is reduced, and the polishing cost is high. SUMMARY

[0003] In order to solve the above problems, the present application provides a sand belt automatic replacement device which can realize automatic replacement of the sand belt and has a simple structure, and the specific technical scheme is as follows:

[0004] The sand belt automatic replacement device comprises a rack, a belt taking device, a belt installing device and a pushing device.

[0005] Preferably, the belt taking device comprises a belt taking clamping device, the belt taking clamping device is installed on the rack and is provided with a plurality of belt taking clamping devices, the plurality of belt taking clamping devices are matched with the shape of the tightened sand belt, and the belt taking clamping device is used for clamping the tightened sand belt.

[0006] Further, the belt taking clamping device comprises a pneumatic finger and a clamping jaw.

[0007] Preferably, the belt installing device comprises a spreading device and a tightening device.

[0008] Preferably, the spreading device comprises a spreading rod, the spreading rod is fixed on the rack and is provided with a plurality of spreading rods, the plurality of spreading rods form an arc shape and are matched with the polishing wheel of the sand belt polishing machine.

[0009] Further, the device further comprises a spreading base plate, which is installed on the frame, and the spreading rod is installed on the spreading base plate.

[0010] Preferably, the tensioning device comprises a tensioning wheel, which is slidingly installed on the frame, and a tensioning spring, which is connected with the frame and the tensioning wheel respectively.

[0011] Preferably, the pushing device comprises a pushing plate, which is movably inserted into the tape taking device, a plurality of telescopic rods, which are installed on the pushing plate and movably inserted into the frame, and a pushing cylinder, which is installed on the frame and connected with the pushing plate.

[0012] Further, the pushing plate is provided with a position-avoiding hole matched with the belt sander.

[0013] Preferably, the device further comprises a fixing plate, which is installed on the frame, and the tape taking device, the tape loading device and the pushing device are installed on the fixing plate.

[0014] Compared with the prior art, the device has the following beneficial effects:

[0015] The device can automatically take down the abrasive belt through the tape taking device, and then automatically install the abrasive belt on the belt sander through the tape loading device and the pushing device, so that the overall structure is simple, the replacement speed of the abrasive belt is fast, the overall efficiency of polishing is improved, the polishing cost is reduced, and various specifications of abrasive belts can be automatically replaced on one device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of an embodiment;

[0017] Figure 2 is a front view of an embodiment;

[0018] Figure 3 is a structural schematic view of an embodiment after the pushing plate is hidden;

[0019] Figure 4 is a structural schematic view of a fixing plate;

[0020] Figure 5 is a structural schematic view of a spreading device;

[0021] Figure 6 is a structural schematic view of a pushing plate;

[0022] Figure 7 is a structural schematic view of an embodiment cooperating with a mechanical arm;

[0023] Figure 8 is a structural schematic diagram of a belt sander. DETAILED DESCRIPTION

[0024] The application will be further described in conjunction with the drawings.

[0025] As Figures 1 to 8 shown, an automatic belt replacing device includes a frame 1, a belt taking device, a belt loading device and a pushing device, the belt taking device is used to take off the belt 7 from the belt sander 9, the belt loading device is not less than one, and is used to insert the belt 7 into the belt sander 9. The pushing device is installed on the frame 1 and movably inserted into the belt taking device and the belt loading device, and is used to take off the belt 7 from the belt taking device and push the belt 7 on the belt loading device into the belt sander 9, respectively. The belt taking device realizes automatic taking off of the belt 7, and the belt loading device and the pushing device realize automatic installation of the belt 7, and the overall structure is simple, convenient to use and improves the overall polishing efficiency.

[0026] The frame 1 is provided with a fixed plate 2. The belt taking device, the belt loading device and the pushing device are all installed on the fixed plate 2. The fixed plate 2 facilitates machining and installation of the belt taking device, the belt loading device and the pushing device.

[0027] Specifically, the belt taking device includes a belt taking clamping device and a clamping connecting rod 33, the clamping connecting rod 33 is installed on an adjusting groove 21 on the fixed plate 2, the adjusting groove 21 is a waist-shaped groove, and the belt taking clamping device is installed on the clamping connecting rod 33. The clamping connecting rod 33 and the adjusting groove 21 are used to adjust the position of the belt taking clamping device. The belt taking clamping device is provided with four, and the belt taking clamping device matches the shape of the taut belt 7 and is used to clamp the taut belt 7. The belt taking clamping device includes a pneumatic finger 31 and a clamping jaw 32, the pneumatic finger 31 is installed on the clamping connecting rod 33, and the clamping jaw 32 is symmetrically installed on the pneumatic finger 31 and is used to clamp the belt 7. The pneumatic finger 31 is used to drive the clamping jaw 32 to clamp the belt 7, and the structure is simple and convenient to control.

[0028] The pushing device includes a pushing plate 41, a telescopic rod 42 and a pushing cylinder 44, the pushing cylinder 44 is installed on the fixed plate 2, respectively, and the piston rod of the pushing cylinder 44 is connected with the pushing plate 41. The telescopic rod 42 is fixed on four corners of the pushing plate 41 and movably inserted into a linear bearing 43, and the linear bearing 43 is installed on the fixed plate 2. The pushing plate 41 is provided with a position-avoiding hole 411 matched with the belt sander 9. The pushing plate 41 is further provided with a clamping groove and a pushing groove 413, the clamping groove is a waist-shaped groove, and the clamping jaw 32 is movably inserted into the clamping groove.

[0029] The belt mounting device includes a spreading device and a tensioning device, both mounted on the fixed plate 2. Two spreading devices are symmetrically arranged, and one tensioning device is located below the spreading devices, with the spreading devices symmetrically positioned on either side above the tensioning devices. The tensioning device is used to tension the abrasive belt 7 onto the spreading device, ensuring that the tensioned abrasive belt 7 matches the shape of the taut abrasive belt 7 of the belt sander 9. The spreading device includes spreading rods 51 and a spreading base plate 52. The spreading base plate 52 is fixed to the fixed plate 2, and eight spreading rods 51 are fixed to the spreading base plate 52, forming an arc shape that matches the grinding wheel 92 on the belt sander 9. The tensioning device includes a tensioning wheel 61 and a tensioning spring. The tensioning wheel 61 is slidably mounted on the fixed plate 2 via a linear guide pair and moves vertically. One end of the tensioning spring is fixed to the fixed plate 2, and the other end is connected to the tensioning wheel 61, providing tension force. When loading the sanding belt 7 onto the belt loading device, first place the sanding belt 7 onto the two support rods 51, then pull the tension wheel 61 upwards, place the sanding belt 7 onto the tension wheel 61 again, and then release the tension wheel 61. The tension wheel 61 then tightens the sanding belt 7 under the action of the tension spring. The tension wheel 61 is also movably inserted into the push groove 413.

[0030] Multiple belt-loading devices can be used to install sanding belts for various purposes.

[0031] During work:

[0032] First, install the appropriate size sanding belt 7 onto the corresponding belt loading device. When loading the sanding belt 7 onto the belt loading device, first put the sanding belt 7 onto the two support rods 51, then pull upwards onto the tension wheel 61, then put the sanding belt 7 onto the tension wheel 61, and then release the tension wheel 61. The tension wheel 61 tightens the sanding belt 7 under the action of the tension spring. The tension wheel 61 is also movably inserted into the push groove 413.

[0033] When changing the sanding belt 7, the robotic arm 8 moves the belt sander 9 to the belt picking device, positioning the sanding belt 7 opposite the gripper 32. At this time, the pneumatic finger 31 is in the open position. Then, the robotic arm 8 moves the sanding belt 7 from the belt sander 9 onto the gripper 32. The pneumatic finger 31 then moves the gripper 32 to clamp the sanding belt 7, and the belt sander 9 releases the sanding belt 7. The robotic arm 8 then moves the belt sander 9 backwards and then to the belt loading device. The robotic arm 8 moves the belt sander 9 to the open position. At the end of the rod 51, the three grinding wheels 92 correspond one-to-one with the two belt mounting devices and the tensioning wheel 61. The diameter of the grinding wheels 92 of the belt sander 9 is the same as the diameter of the arc formed by the spreading rod 51. Then, the push cylinder 44 extends, and the piston rod of the push cylinder 44 drives the push plate 41 to move towards the belt sander 9. The push plate 41 pushes the sanding belt 7 to the grinding wheel 92 on the belt sander 9. Then, the tensioning device 91 of the belt sander 9 tensions the sanding belt 7, completing the replacement of the sanding belt 7.

[0034] When the belt sander 9 is working, the operator will put the new sanding belt 7 onto the belt loading device.

[0035] When the belt-removing device removes the sanding belt 7, the pneumatic finger 31 first releases the sanding belt 7, and then the piston rod of the push cylinder 44 drives the push plate 41 to move outward. The push plate 41 pushes the sanding belt 7 off the gripper 32, and the sanding belt 7 falls into the recycling tank 11 below the frame 1.

[0036] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic belt changing device, characterized in that, include: Rack (1), A belt-retrieving device is mounted on the frame (1) for removing the sanding belt (7) from the belt sander (9). A belt loading device, wherein at least one is mounted on the frame (1), for inserting the sanding belt (7) into the belt sander (9); and A pushing device is installed on the frame (1) and is movably inserted into the belt taking device and the belt loading device, respectively used to take the removed sanding belt (7) from the belt taking device and push the sanding belt (7) on the belt loading device onto the sanding belt grinder (9). The loading device includes: A spreading device is installed on the frame (1), and several spreading devices are provided; Tensioning device, wherein the tensioning device is installed on the frame (1) and there is not less than one tensioning device, and the spreading device and the tensioning device are arranged opposite to each other; The tensioning device is used to tension the sanding belt (7) on the spreading device, and the tensioned sanding belt (7) matches the shape of the sanding belt (7) taut by the sanding belt grinder (9). The pushing device includes: Push plate (41), which is movably inserted into the tape taking device; Telescopic rods (42) are mounted on the push plate (41), and several telescopic rods (42) are provided. The telescopic rods (42) are also movably inserted into the frame (1); and Push cylinder (44), the push cylinder (44) is mounted on the frame (1) and connected to the push plate (41); The push plate (41) is provided with a clearance hole (411) that matches the belt sander (9).

2. The automatic belt changing device according to claim 1, characterized in that, The tape-taking device includes: A belt clamping device is installed on the frame (1) and there are several of them. The shape of the belt clamping device matches the tension of the sanding belt (7) and is used to clamp the tensioned sanding belt (7).

3. The automatic belt changing device according to claim 2, characterized in that, The belt clamping device includes: A pneumatic finger (31), said pneumatic finger (31) being mounted on the frame (1); and The gripper (32) is symmetrically mounted on the pneumatic finger (31) for clamping the sanding belt (7).

4. The automatic belt changing device according to claim 1, characterized in that, The spreading device includes: A support rod (51) is fixed on the frame (1) and there are several of them. The support rods (51) form an arc shape and match the grinding wheel (92) on the belt sander (9).

5. The automatic belt changing device according to claim 4, characterized in that, Also includes: The base plate (52) is spread out and installed on the frame (1), and the spreading rod (51) is installed on the base plate (52).

6. The automatic belt changing device according to claim 4, characterized in that, The tensioning device includes: Tensioner (61), said tensioner (61) being slidably mounted on said frame (1); and A tension spring is connected to the frame (1) and the tension wheel (61) respectively.

7. An automatic belt changing device according to any one of claims 1 to 6, characterized in that, It also includes a fixing plate (2), which is mounted on the frame (1), and the tape picking device, the tape loading device and the pushing device are all mounted on the fixing plate (2).

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