Abrasive paper replacing equipment

Abstract

The utility model relates to the technical field of workpiece grinding, in particular to abrasive paper replacing equipment. The abrasive paper replacement equipment comprises a machine table, a material tearing mechanism, a material supply mechanism and a detection mechanism, the material tearing mechanism comprises a first material tearing driving part and a material tearing part, the first material tearing driving part is arranged on the machine table, the material tearing part is connected to the first material tearing driving part, the material supply mechanism is arranged on the machine table and comprises a material bin and a material pushing assembly which are both arranged on the machine table, and the material bin is used for containing abrasive paper; a discharging port penetrating through the stock bin is formed in the end, connected with the machine table, of the stock bin, the pushing assembly corresponds to the discharging port and is used for pushing the abrasive paper on the lowermost layer in the stock bin to move to the material taking position from the discharging port, the detection mechanism is arranged on the machine table, the detection mechanism and the tearing mechanism are arranged in a spaced mode, and the detection mechanism is used for detecting whether the abrasive paper is arranged on the grinding head or not. According to the abrasive paper replacing equipment, the abrasive paper on the grinding head can be detached, new abrasive paper is provided for the grinding head, automatic operation is achieved, and the operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece grinding, and in particular to a sandpaper replacement device. Background Art

[0002] With the rapid development of the 3C product industry, consumers' requirements for product appearance quality are constantly increasing. After the product is processed, it is usually necessary to polish it to ensure that the product appearance meets the design requirements. In the existing polishing process, the product is generally polished by attaching sandpaper to the polishing head, and the sandpaper is replaced manually to ensure the yield of sandpaper polishing.

[0003] However, the process of replacing sandpaper relies on manual operation. For some small and thin sandpaper, it is difficult to remove manually. In addition, new sandpaper is prone to sticking to each other, which may cause multiple sandpapers to be taken out at a time during manual material removal, and then they need to be separated, which not only affects the work efficiency, but also increases the uncertainty in the production process. Utility Model Content

[0004] In view of the above, it is necessary to propose a sandpaper replacement device, which can remove the sandpaper on the grinding head and provide new sandpaper for the grinding head, so as to realize automated operation and improve operation efficiency.

[0005] The embodiment of the present application provides a sandpaper replacement device for replacing the sandpaper on the grinding head, comprising: a machine platform; a tearing mechanism, comprising a first tearing drive member and a tearing piece, the first tearing drive member being arranged on the machine platform, the tearing piece being connected to the first tearing drive member, the first tearing drive member being used to drive the tearing piece to be inserted between the grinding head and the sandpaper on the grinding head, so as to tear off the sandpaper on the grinding head when the grinding head is away from the tearing piece; a feeding mechanism, which is arranged on the machine platform and spaced apart from the tearing mechanism, the feeding mechanism comprising a material bin which is arranged on the machine platform and a pushing assembly, the silo is used to accommodate stacked sandpaper to be replaced, one end of the silo connected to the machine is provided with a discharge port penetrating the silo, the discharge port includes a first end and a second end arranged opposite to each other, the pushing assembly corresponds to the first end of the discharge port, and is used to push the sandpaper in the bottom layer of the silo to move out from the second end of the discharge port, and move the sandpaper to a material taking position; and a detection mechanism, which is arranged on the machine and spaced apart from the tearing mechanism, and the detection mechanism is used to detect whether the sandpaper obtained from the material taking position is installed on the grinding head.

[0006] The above-mentioned sandpaper replacement equipment can insert the tearing piece between the grinding head and the sandpaper connected to the grinding head through the tearing mechanism. When the grinding head is away from the tearing piece, the tearing piece stops the sandpaper from moving with the grinding head, and then the sandpaper is removed from the grinding head. The hopper in the feeding mechanism contains stacked sandpaper. The pushing assembly can push the sandpaper in the bottom layer of the hopper to the material taking position to complete the separation of the sandpaper, and prepare the sandpaper for the grinding head. The grinding head can directly obtain the sandpaper when it moves to the material taking position, thereby completing the automatic replacement of the sandpaper. The sandpaper on the grinding head can be detected by the detection mechanism to identify whether sandpaper is installed on the grinding head, thereby realizing the automation of sandpaper replacement with high operation efficiency.

[0007] In some embodiments, the tearing mechanism also includes a second tearing drive member, and the tearing piece is connected to the first tearing drive member through the second tearing drive member, and the first tearing drive member is used to drive the second tearing drive member and the tearing piece to move so that the tearing piece is inserted between the grinding head and the sandpaper on the grinding head, and the second tearing drive member is used to drive the tearing piece to move toward the machine table so that the tearing piece presses the sandpaper on the grinding head against the machine table.

[0008] In some embodiments, the material tearing mechanism also includes a slide rail assembly, which is arranged on the machine platform and close to the first material tearing drive component, the output end of the first material tearing drive component is connected to the slide rail assembly, the second material tearing drive component is connected to the slide rail assembly, and the first material tearing drive component drives the second material tearing drive component to move through the slide rail assembly.

[0009] In some embodiments, the tearing mechanism further includes a wear-resistant plate, which is disposed on the machine platform and corresponds to the tearing piece, and the wear-resistant plate is used to receive the sandpaper pressed by the tearing piece.

[0010] In some embodiments, the end of the tearing piece away from the first tearing drive piece is a V-shaped structure, the cross-sectional area of ​​the end of the tearing piece away from the first tearing drive piece is smaller than the cross-sectional area of ​​the end of the tearing piece close to the first tearing drive piece, and the thickness of the tearing piece gradually decreases in the direction away from the first tearing drive piece.

[0011] In some embodiments, the feeding mechanism also includes a guide member, which is connected to the machine and arranged between the material collection position and the material bin. A channel is arranged inside the guide member and passes through the guide member. The channel is connected to the second end of the discharge port. The pushing assembly pushes the sandpaper in the material bin to move to the channel, thereby allowing the sandpaper to pass through the channel and move to the material collection position.

[0012] In some embodiments, an observation window is provided on a side of the guide member facing away from the machine platform, the observation window is connected to the channel, and the width of the observation window is smaller than the width of the channel.

[0013] In some embodiments, the feeding mechanism further includes a first sensor, which is disposed on the machine platform and corresponds to the material taking position, and the first sensor is used to sense the sandpaper moving to the material taking position.

[0014] In some embodiments, the feeding mechanism further includes a second sensor, wherein the second sensor is connected to a side wall of the silo, and the second sensor is used to sense the sandpaper in the silo.

[0015] In some embodiments, the detection mechanism includes an exhaust head, and the exhaust head is used to exhaust air from the grinding head moved to the upper side of the exhaust head to detect whether the sandpaper is installed on the grinding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the sandpaper replacement device provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1 A side view of the sandpaper replacement device is shown when the tearing mechanism presses the sandpaper on the grinding head.

[0018] Figure 3 for Figure 1 An exploded schematic diagram of the feeding mechanism of the sandpaper changing device is shown.

[0019] Main component symbols

[0020] Sandpaper Changing Equipment 100

[0021] Machine 10

[0022] Material taking position 11

[0023] Tearing mechanism 20

[0024] The first tearing driving member 21

[0025] Tear piece 22

[0026] The second tearing driving member 23

[0027] Slide rail assembly 24

[0028] Slide 241

[0029] Connecting plate 242

[0030] Wear plate 25

[0031] Feeding mechanism 30

[0032] Silo 31

[0033] Discharge port 311

[0034] Pusher assembly 32

[0035] Push drive 321

[0036] Pushing piece 322

[0037] Guide 33

[0038] Channel 331

[0039] Observation window 332

[0040] First sensor 34

[0041] Second sensor 35

[0042] Testing agency 40

[0043] Vacuum head 41

[0044] Grinding head 200

[0045] Sandpaper 300 DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0047] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0048] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "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 be a mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0049] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0050] See also Figure 1 The embodiment of the present application provides a sandpaper replacement device 100 for replacing sandpaper 300 on a grinding head 200. The grinding head 200 can be connected to a robot arm or other driving mechanism so that the grinding head 200 can move freely in space. The grinding head 200 and the sandpaper 300 can be connected by Velcro. The sandpaper replacement device 100 includes a machine 10, a tearing mechanism 20, a feeding mechanism 30 and a detection mechanism 40.

[0051] Specifically, see Figure 1 The machine 10 is used to carry the tearing mechanism 20, the feeding mechanism 30 and the detecting mechanism 40. The machine 10 is a support frame or other mechanism with a load-bearing function, which can provide stable support for the tearing mechanism 20, the feeding mechanism 30 and the detecting mechanism 40.

[0052] See also Figure 1 and Figure 2 The tearing mechanism 20 includes a first tearing driving member 21 and a tearing member 22. The first tearing driving member 21 is disposed on the machine platform 10. The tearing member 22 is connected to the first tearing driving member 21. The first tearing driving member 21 is used to drive the tearing member 22 to insert between the grinding head 200 and the sandpaper 300 on the grinding head 200, so as to tear off the sandpaper 300 on the grinding head 200 when the grinding head 200 is away from the tearing member 22. The first tearing driving member 21 can be a functional mechanism such as a cylinder that can drive the tearing member 22 to move. The tearing member 22 can be a sheet structure. When removing the sandpaper 300, the grinding head 200 moves to the position of the tearing mechanism 20 and corresponds to the tearing member 22. The first tearing driving member 21 moves the tearing member 22 in the horizontal direction to insert between the grinding head 200 and the sandpaper 300, and then the grinding head 200 is away from the tearing member 22, so that the tearing member 22 tears off the sandpaper 300.

[0053] Please also see Figure 3The feeding mechanism 30 is arranged on the machine 10 and is spaced apart from the tearing mechanism 20. The feeding mechanism 30 includes a silo 31 and a pushing assembly 32 both of which are arranged on the machine 10. The silo 31 is used to accommodate the stacked sandpaper 300 to be replaced. The end of the silo 31 connected to the machine 10 is provided with a discharge port 311 that penetrates the silo 31. The discharge port 311 includes a first end and a second end that are arranged oppositely. The pushing assembly 32 corresponds to the first end of the discharge port 311 and is used to push the sandpaper 300 in the bottom layer of the silo 31 out from the second end of the discharge port 311 and move the sandpaper 300 to a material taking position 11. It can be understood that when the sandpaper 300 is stacked in the silo 31, the grinding surface is arranged toward the machine 10, and the side connected to the grinding head 200 is arranged away from the machine 10. The width of the discharge port 311 along the direction perpendicular to the machine 10 is greater than the thickness of one sandpaper 300 and less than the thickness of two sandpapers 300. Thus, when the pushing assembly 32 pushes the sandpaper 300 to move out of the bin 31 from the second end of the discharge port 311, only one sandpaper 300 is pushed out at a time to separate the sandpaper 300 and prevent the sandpaper 300 from sticking. The pushing assembly stops running after pushing the sandpaper 300 to the material taking position 11, and the grinding head 200 moves to the material taking position 11 and connects to the sandpaper 300 at the material taking position 11, completing the replacement of the sandpaper 300 of the grinding head 200. After the sandpaper 300 at the material taking position 11 is taken away, the pushing assembly pushes the sandpaper 300 at the bottom layer in the bin 31 to move to the material taking position 11 again.

[0054] The detection mechanism 40 is disposed on the machine 10 and spaced apart from the tearing mechanism 20. The detection mechanism 40 is used to detect whether the sandpaper 300 obtained from the material taking position 11 is installed on the grinding head 200. When the grinding head 200 is connected with new sandpaper 300, it moves to the detection mechanism 40, and the detection mechanism 40 detects whether the sandpaper 300 is connected to the grinding head 200.

[0055] The sandpaper replacement device 100 provided in the embodiment of the present application can insert the tearing piece 22 between the grinding head 200 and the sandpaper 300 connected to the grinding head 200 through the tearing mechanism 20. When the grinding head 200 is away from the tearing piece 22, the tearing piece 22 stops the sandpaper 300 from moving with the grinding head 200, thereby removing the sandpaper 300 from the grinding head 200. The material bin 31 in the feeding mechanism 30 contains stacked sandpapers 300. The pushing assembly 32 can push the sandpaper 300 in the bottom layer of the material bin 31 to the material taking position 11, thereby completing the separation of the sandpaper 300 and preparing the sandpaper 300 for the grinding head 200. The grinding head 200 can directly obtain the sandpaper 300 when it moves to the material taking position 11, thereby completing the automatic replacement of the sandpaper 300. The sandpaper 300 on the grinding head 200 can be detected by the detection mechanism 40 to identify whether the sandpaper 300 is installed on the grinding head 200, thereby realizing the automated operation of replacing the sandpaper 300 with high operation efficiency.

[0056] In some embodiments, see Figure 1 and Figure 2 The tearing mechanism 20 also includes a second tearing driving member 23, and the tearing member 22 is connected to the first tearing driving member 21 through the second tearing driving member 23. The first tearing driving member 21 is used to drive the second tearing driving member 23 and the tearing member 22 to move, so that the tearing member 22 is inserted between the grinding head 200 and the sandpaper 300 on the grinding head 200. The second tearing driving member 23 is used to drive the tearing member 22 to move toward the machine table 10, so that the tearing member 22 presses the sandpaper 300 on the grinding head 200 against the machine table 10.

[0057] The second tearing driving member 23 may be a functional mechanism such as a cylinder that can drive the tearing member 22 to move. It can be understood that the second tearing driving member 23 is connected to the output end of the first tearing driving member 21, and the tearing member 22 is connected to the output end of the second tearing driving member 23. The second tearing driving member 23 drives the tearing member 22 to move in a direction perpendicular to the machine 10. When removing the sandpaper 300, the grinding head 200 moves to a position opposite to the tearing member 22, the first tearing driving member 21 drives the second tearing driving member 23 and the tearing member 22 to be inserted between the grinding head 200 and the sandpaper 300 connected to the grinding head 200, and then the second tearing driving member 23 drives the tearing member 22 to move toward the machine 10 to press the sandpaper 300 on the machine 10, and then the grinding head 200 moves away from the tearing member 22, thereby separating the sandpaper 300 from the grinding head 200. By providing a second tearing drive component 23, the tearing component 22 can press the sandpaper 300 against the machine 10 before removing the sandpaper 300, thereby improving the stability of removing the sandpaper 300 and preventing the sandpaper 300 from being partially connected to the sanding head 200 after the sanding head 200 moves away from the tearing component 22, resulting in the sandpaper 300 being unable to completely detach from the sanding head 200.

[0058] In some embodiments, see Figure 1 and Figure 2 The tearing mechanism 20 also includes a slide rail assembly 24, which is arranged on the machine platform 10 and close to the first tearing drive member 21. The output end of the first tearing drive member 21 is connected to the slide rail assembly 24, and the second tearing drive member 23 is connected to the slide rail assembly 24. The first tearing drive member 21 drives the second tearing drive member 23 to move through the slide rail assembly 24.

[0059] The slide rail assembly 24 includes a slide rail 241 and a connecting plate 242. The slide rail 241 is arranged on the machine 10 and corresponds to the output end position of the first tearing drive member 21. The connecting plate 242 is slidably connected to the slide rail 241. The output end of the first tearing drive member 21 is connected to the connecting plate 242 to drive the connecting plate 242 to slide along the slide rail 241. The second tearing drive member 23 is connected to the connecting plate 242 to move with the connecting plate 242. In this way, by providing the slide rail assembly 24, the stability of the first tearing drive member 21 driving the second tearing drive member 23 to move can be improved, thereby improving the accuracy of the tearing member 22 inserted between the grinding head 200 and the sandpaper 300.

[0060] In some embodiments, see Figure 1 The tearing mechanism 20 further includes a wear plate 25, which is arranged on the machine 10 and corresponds to the tearing piece 22. The wear plate 25 is used to receive the sandpaper 300 held by the tearing piece 22. The wear plate 25 can be made of a highly wear-resistant material such as tungsten steel. The wear plate 25 corresponds to the tearing piece 22 in a direction perpendicular to the machine 10. When the second tearing driving member 23 drives the tearing piece 22 to move toward the machine 10, the tearing piece 22 holds the sandpaper 300 connected to the grinding head 200 on the wear plate 25, and then clamps the sandpaper 300, so that the sandpaper 300 is separated from the grinding head 200. It can be understood that when the tearing piece 22 holds the sandpaper 300 on the machine 10, the grinding surface of the sandpaper 300 contacts the machine 10. By setting the wear plate 25, the wear of the sandpaper 300 on the machine 10 can be effectively reduced, and the service life of the machine 10 can be increased.

[0061] In some embodiments, see Figure 1 The end of the tearing piece 22 away from the first tearing driving member 21 is a V-shaped structure, the cross-sectional area of ​​the end of the tearing piece 22 away from the first tearing driving member 21 is smaller than the cross-sectional area of ​​the end of the tearing piece 22 close to the first tearing driving member 21, and the thickness of the tearing piece 22 gradually decreases in the direction away from the first tearing driving member 21. In this way, the tearing piece 22 is convenient to be inserted between the grinding head 200 and the sandpaper 300 connected to the grinding head 200.

[0062] In some embodiments, see Figure 1 and Figure 3The feeding mechanism 30 further includes a guide member 33, which is connected to the machine 10 and disposed between the material taking position 11 and the material bin 31. A channel 331 penetrating the guide member 33 is disposed inside the guide member 33, and the channel 331 is connected to the second end of the discharge port 311. The pushing assembly 32 pushes the sandpaper 300 in the material bin 31 to move to the channel 331, and then the sandpaper 300 passes through the channel 331 and moves to the material taking position 11. The guide member 33 may be a plate-like structure, and the cross-sectional structure of the channel 331 is the same as that of the sandpaper 300, so as to limit the sandpaper 300 and prevent the sandpaper 300 from pressing each other when moving in the channel 331. The pushing assembly 32 pushes the sandpaper 300 in the lower layer of the material bin 31 out of the material bin 31, and then passes through the channel 331, so that the sandpaper 300 moves to the material taking position 11 and waits for the grinding head 200 to take the material.

[0063] In some embodiments, the length of the guide member 33 is greater than the length of the sandpaper 300, so that the material taking position 11 and the material bin 31 are spaced apart, so that the material bin 31 avoids the grinding head 200 when the grinding head 200 takes the material. The length of the guide member 33 is an integer multiple of the length of the sandpaper 300, such as five times, six times, seven times, etc. The distance that the material pushing assembly 32 pushes the sandpaper 300 to move is the same as the length of the sandpaper 300. When pushing the material, the material pushing assembly 32 pushes one piece of sandpaper 300 from the material bin 31 to the channel 331 at a time, and then pushes the second piece of sandpaper 300 to move into the channel 331. The second piece of sandpaper 300 pushes the first piece of sandpaper 300 to continue moving along the channel 331, and so on and so forth until the first piece of sandpaper 300 moves to the material taking position 11.

[0064] In some embodiments, see Figure 1 An observation window 332 is provided on the side of the guide member 33 facing away from the machine 10. The observation window 332 is connected to the channel 331, and the width of the observation window 332 is smaller than the width of the channel 331. By providing the observation window 332, the movement of the sandpaper 300 in the channel 331 can be observed, which is convenient for timely adjustment and repair after a paper jam occurs.

[0065] In this example, see Figure 1 and Figure 3 The push assembly 32 includes a push driving member 321 and a push member 322. The push driving member 321 is connected to the machine 10 and is arranged close to the silo 31. The push member 322 is connected to the push driving member 321 and is slidably arranged at the discharge port 311 of the silo 31. The push driving member 321 can be a cylinder, etc., and the push member 322 can be a plate-like structure. The push driving member 321 drives the push member 322 to reciprocate at the discharge port 311 at the bottom of the silo 31 to push the sandpaper 300 into the channel 331 of the guide member 33, and then move to the material taking position 11.

[0066] In some embodiments, see Figure 1 and Figure 3 The feeding mechanism 30 further includes a first sensor 34, which is disposed on the machine 10 and corresponds to the material taking position 11. The first sensor 34 is used to sense the sandpaper 300 moving to the material taking position 11. The first sensor 34 may be a proximity switch, etc. When the sandpaper 300 moves to the material taking position 11, the first sensor 34 detects the sandpaper 300, and the pushing assembly 32 stops moving, waiting for the sandpaper 300 at the material taking position 11 to be taken away by the grinding head 200. After the sandpaper 300 at the material taking position 11 is taken away, the first sensor 34 detects that there is no material at the material taking position 11, and at this time, the pushing assembly 32 moves to push the sandpaper 300 to the material taking position 11.

[0067] In some embodiments, see Figure 1 and Figure 3 The feeding mechanism 30 further includes a second sensor 35, which is connected to the side wall of the silo 31 and is used to sense the sandpaper 300 in the silo 31. The second sensor 35 may be a beam-type infrared sensor, etc. The second sensor 35 may be disposed at the lower part of the silo 31 and may be connected to an alarm (not shown). When the sandpaper 300 in the silo 31 is continuously moved to the material taking position 11 until the uppermost layer of sandpaper 300 passes through the second sensor 35, the second sensor 35 cannot detect the sandpaper 300 at this time, and a signal may be sent, and the alarm may sound an alarm to remind the user to replenish the sandpaper 300.

[0068] In some embodiments, see Figure 1 The detection mechanism 40 includes an exhaust head 41, which is disposed on the machine 10. The exhaust head 41 is used to exhaust air from the grinding head 200 that moves to the upper side of the exhaust head 41, so as to detect the sandpaper 300 connected to the grinding head 200. The exhaust head 41 is connected to an external exhaust device (not shown) so that the exhaust head 41 can exhaust air. During the detection, the grinding head 200 abuts against the exhaust head 41, and the exhaust head 41 starts to exhaust air. At this time, if the sandpaper 300 is connected to the grinding head 200, the pressure gauge of the external exhaust device can display negative pressure, indicating that the sandpaper 300 is connected to the grinding head 200. If the sandpaper 300 is not connected to the grinding head 200, it can be understood that since the grinding head 200 and the sandpaper 300 are connected by Velcro, and there are multiple hook-shaped structures at the end of the grinding head 200, when the vacuum head 41 evacuates the grinding head 200, the indication of the pressure gauge of the external vacuum equipment is obviously smaller than the indication when the grinding head 200 is connected with the sandpaper 300, which means that the grinding head 200 is not connected with the sandpaper 300, and the grinding head 200 can be moved to the material taking position 11 again to take the material.

[0069] The working process of the sandpaper replacement device 100 provided in the embodiment of the present application is roughly as follows:

[0070] First, the pushing assembly 32 operates to continuously push the sandpaper 300 in the bin 31 into the channel 331 of the guide member 33 until the sandpaper 300 moves to the material taking position 11 and waits for the grinding head 200 to take the material.

[0071] The grinding head 200 moves to the tearing mechanism 20 and corresponds to the tearing piece 22. The first tearing driving member 21 drives the second tearing driving member 23 and the tearing piece 22 to move toward the grinding head 200 through the slide rail assembly 24 until the tearing piece 22 is inserted between the grinding head 200 and the sandpaper 300 connected to the grinding head 200. Then the second tearing driving member 23 drives the tearing piece 22 to move toward the machine table 10, thereby pressing the sandpaper 300 on the wear-resistant plate 25, and then the grinding head 200 moves away from the tearing piece 22, thereby separating the sandpaper 300 from the grinding head 200.

[0072] Then, the grinding head 200 moves to the material taking position 11, and then connects with the sandpaper 300 on the material taking piece. After the connection is completed, the grinding head 200 moves to the detection mechanism 40, and the detection mechanism 40 detects whether the sandpaper 300 is connected to the grinding head 200. At this time, the first sensor 34 of the material taking position 11 detects that there is no sandpaper 300 at the material taking position 11, and the push component operates to push the sandpaper 300 to the material taking position 11, waiting for the next material taking.

[0073] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A sandpaper replacement device for replacing sandpaper on a grinding head, characterized in that: include: Machine; The tearing mechanism comprises a first tearing driving member and a tearing piece, wherein the first tearing driving member is arranged on the machine platform, the tearing piece is connected to the first tearing driving member, and the first tearing driving member is used to drive the tearing piece to be inserted between the grinding head and the sandpaper on the grinding head, so as to tear off the sandpaper on the grinding head when the grinding head is away from the tearing member; A feeding mechanism is arranged on the machine platform and spaced apart from the tearing mechanism, the feeding mechanism comprises a silo and a pushing assembly both of which are arranged on the machine platform, the silo is used to accommodate the stacked sandpaper to be replaced, one end of the silo connected to the machine platform is provided with a discharge port that penetrates the silo, the discharge port comprises a first end and a second end that are arranged oppositely, the pushing assembly corresponds to the first end of the discharge port, and is used to push the sandpaper in the lower layer of the silo to move out from the second end of the discharge port, and move the sandpaper to a material taking position; and The detection mechanism is arranged on the machine platform and spaced apart from the tearing mechanism, and the detection mechanism is used to detect whether the sandpaper obtained from the material taking position is installed on the grinding head.

2. The sandpaper replacement device according to claim 1, characterized in that: The tearing mechanism also includes a second tearing drive member, and the tearing member is connected to the first tearing drive member through the second tearing drive member, and the first tearing drive member is used to drive the second tearing drive member and the tearing member to move so that the tearing member is inserted between the grinding head and the sandpaper on the grinding head, and the second tearing drive member is used to drive the tearing member to move toward the machine table so that the tearing member presses the sandpaper on the grinding head against the machine table.

3. The sandpaper replacement device according to claim 2, characterized in that: The material tearing mechanism also includes a slide rail assembly, which is arranged on the machine platform and close to the first material tearing drive component. The output end of the first material tearing drive component is connected to the slide rail assembly, and the second material tearing drive component is connected to the slide rail assembly. The first material tearing drive component drives the second material tearing drive component to move through the slide rail assembly.

4. The sandpaper replacement device according to claim 2, characterized in that: The tearing mechanism further includes a wear-resistant plate, which is disposed on the machine platform and corresponds to the tearing piece, and is used for receiving the sandpaper pressed by the tearing piece.

5. The sandpaper replacement device according to claim 1, characterized in that: The end of the tearing piece away from the first tearing drive piece is a V-shaped structure, the cross-sectional area of ​​the end of the tearing piece away from the first tearing drive piece is smaller than the cross-sectional area of ​​the end of the tearing piece close to the first tearing drive piece, and the thickness of the tearing piece gradually decreases in the direction away from the first tearing drive piece.

6. The sandpaper replacement device according to claim 1, characterized in that: The feeding mechanism also includes a guide member, which is connected to the machine platform and arranged between the material taking position and the silo. A channel is arranged inside the guide member and passes through the guide member. The channel is connected to the second end of the discharge port. The pushing assembly pushes the sandpaper in the silo to move to the channel, thereby allowing the sandpaper to pass through the channel and move to the material taking position.

7. The sandpaper replacement device according to claim 6, characterized in that: An observation window is provided on a side of the guide member away from the machine platform. The observation window is communicated with the channel, and the width of the observation window is smaller than the width of the channel.

8. The sandpaper replacement device according to claim 1, characterized in that: The feeding mechanism further includes a first sensor, which is disposed on the machine platform and corresponds to the material taking position, and is used to sense the sandpaper moving to the material taking position.

9. The sandpaper replacement device according to claim 1, characterized in that: The feeding mechanism further includes a second sensor, which is connected to the side wall of the silo and is used to sense the sandpaper in the silo.

10. The sandpaper replacement device according to claim 1, characterized in that: The detection mechanism includes an exhaust head, which is arranged on the machine platform. The exhaust head is used to exhaust air from the grinding head moved to the upper side of the exhaust head, so as to detect whether the sandpaper is installed on the grinding head.

Images