Sandpaper tearing device and automatic grinding and polishing equipment

Abstract

The present disclosure provides a sandpaper tearing device and an automatic grinding and polishing equipment. The sandpaper tearing device comprises a carrier plate, a cutting hole knife, a guide structure, two tearing pieces and a first driving mechanism. The carrier plate is movable along a first direction. The cutting hole knife comprises a knife body and a knife head. The knife body is arranged on the carrier plate and extends out of the carrier plate along the first direction. The knife head is connected to the end of the knife body. The guide structure is arranged on the knife body and is provided with two guide channels. The two ends of the guide channel are respectively a first port and a second port. The second port is located between the first port and the knife head. The opening directions of the two first ports respectively face away from the knife head along the first direction. The two second ports are arranged correspondingly in the first direction and the opening directions thereof are opposite along a second direction. The two tearing pieces are respectively arranged in the two guide channels. The two ends of the tearing piece are respectively a first end and a second end. The first end extends out of the first port and extends along the first direction. The two first ends are connected to the first driving mechanism. The second end is retractable from the second port along the second direction.

Description

Technical Field

[0001] This disclosure relates to the field of polishing equipment technology, and in particular to a sandpaper tearing device and an automated polishing equipment. Background Technology

[0002] In robotic automated grinding and polishing operations, sandpaper, as a consumable material, needs frequent replacement to ensure stable grinding results. The most crucial step in sandpaper replacement is tearing the used sandpaper off the grinding disc. Depending on the type of operation, the average sandpaper replacement frequency is approximately every 5 minutes. While existing sandpaper tearing devices can remove the sandpaper, they primarily tear it from the edges. However, the edges of used sandpaper are prone to curling and wear, leading to the failure of these devices. Delayed or ineffective sandpaper removal directly causes the automated grinding and polishing operation to stop. Therefore, sandpaper replacement in robotic automated grinding and polishing operations still relies to some extent on manual labor, and the inefficient sandpaper tearing process significantly impacts the production cycle of the grinding and polishing operation. Summary of the Invention

[0003] A primary objective of this disclosure is to overcome at least one of the deficiencies of the prior art described above, and to provide a sandpaper tearing device with high efficiency and success rate in sandpaper tearing and changing.

[0004] To achieve the above objectives, the present disclosure adopts the following technical solution: According to one aspect of this disclosure, a sandpaper tearing device is provided for automatically tearing sandpaper disposed on a sanding disc. The sandpaper is disposed on one side of the sanding disc, and a slot is provided in the middle of the sanding disc. The slot opens at least into the sandpaper-disposed disc surface, and the sandpaper covers the slot. The sandpaper tearing device includes a carrier plate, a cutting blade, a guide structure, two tearing blades, and a first driving mechanism. The carrier plate is movable along a first direction perpendicular to the sanding disc surface and has a first edge extending along a second direction perpendicular to the first direction. The cutting blade includes a blade body and a cutting head. The blade body is disposed on the carrier plate and extends beyond the first edge along the first direction. The cutting head is connected to the end of the blade body extending beyond the first edge. The guide structure is disposed on the blade body and has... The device has two guide channels, with a first port and a second port at each end. The second port is located between the first port and the cutting head. The opening directions of the two first ports are opposite to the cutting head along the first direction, and the two second ports are arranged correspondingly in the first direction with opposite opening directions along the second direction. Two tearing blades are respectively inserted through the two guide channels, with a first end and a second end at each end. The first end extends out of the first port and along the first direction, and the two first ends are connected to the first drive mechanism. The second end can extend and retract from the second port along the second direction. The first drive mechanism is disposed on the carrier plate and can drive the two first ends to move synchronously along the first direction.

[0005] According to one embodiment of this disclosure, along a third direction perpendicular to the first direction and perpendicular to the second direction, the height of the cutting head is greater than the height of the cutting body, so that a receiving groove is formed on the side of the cutting body facing away from the carrier plate; wherein the guiding structure is at least partially received in the receiving groove.

[0006] According to one embodiment of this disclosure, along the third direction, the side of the cutter head away from the carrier plate extends beyond or is flush with the side of the guide channel away from the cutter body.

[0007] According to one embodiment of this disclosure, the guide channel includes a first channel and a second channel, the first channel extending along a first direction and the second channel extending along a second direction, with one end of the first channel and the second channel bent and connected, the other end of the first channel being the first port and the other end of the second channel being the second port; wherein, the end face of the blade facing the carrier plate in the third direction, extending beyond the blade body and facing away from the carrier plate, forms the first groove wall of the receiving groove, and the portion of the guide structure having the second channel is disposed at the first groove wall.

[0008] According to one embodiment of the present disclosure, the guiding structure includes two guiding units, and two guiding channels are respectively disposed in the two guiding units; wherein, the guiding unit includes a first part and a second part, the first part extends along the first direction, the second part extends along the second direction, one end of the first part and the second part are bent and connected, the first port is disposed on the other end face of the first part, and the second port is disposed on the other end face of the second part.

[0009] According to one embodiment of this disclosure, the first part includes a body part and a mounting part, one end of the body part is connected to the second part, one end of the mounting part is connected to the other end of the body part, and the first port is disposed on the other end face of the mounting part; wherein, along the second direction, the width of the mounting part is greater than the width of the body part, and the guide unit is disposed on the carrier plate via the mounting part.

[0010] According to one embodiment of this disclosure, at least a portion of the mounting portion overlaps with a portion of the blade on the carrier plate in an orthographic projection, and the mounting portion and the blade are jointly disposed on the carrier plate via a connector.

[0011] According to one embodiment of this disclosure, the two guide units are identical in structure and arranged mirror-image along the second direction, so that the two guide channels are arranged symmetrically about an axis of symmetry extending along the first direction.

[0012] According to one embodiment of this disclosure, the second end of the tearing blade is wedge-shaped or arc-shaped; and / or, the cutting head is wedge-shaped, and the cutting edge of the cutting head extends along the second direction.

[0013] As can be seen from the above technical solution, the advantages and positive effects of the sandpaper tearing device proposed in this disclosure are as follows: The sandpaper tearing device disclosed herein includes a carrier plate, a cutting blade, a guide structure, two tearing blades, and a first driving mechanism. The carrier plate is movable along a first direction. The cutting blade includes a blade body and a cutting head. The blade body is disposed on the carrier plate and extends out of the carrier plate along the first direction, and the cutting head is connected to the end of the blade body. The guide structure is disposed on the blade body and has two guide channels. The two ends of the guide channels are a first port and a second port, respectively. The second port is located between the first port and the cutting head. The opening directions of the two first ports are opposite to the cutting head along the first direction, and the two second ports are arranged correspondingly in the first direction and have opening directions opposite to those in the second direction. The two tearing blades are respectively inserted through the two guide channels, and the two ends of the tearing blades are a first end and a second end, respectively. The first end extends out of the first port and extends along the first direction, and the two first ends are connected to the first driving mechanism. The second end is retractable from the second port along the second direction. Through the above design, this disclosure enables the tearing blade to be inserted between the sandpaper and the grinding disc from the middle of the sandpaper. The two guide channels of the guide structure enable the opposite extension and retraction of the two tearing blades, thereby solving the problems of high tearing difficulty and poor tearing effect of the existing sandpaper edge tearing scheme, which is conducive to improving the efficiency and success rate of sandpaper tearing.

[0014] Another primary objective of this disclosure is to overcome at least one of the deficiencies of the prior art described above and to provide an automated polishing device employing the aforementioned sandpaper tearing device.

[0015] To achieve the above objectives, the present disclosure adopts the following technical solution: According to one aspect of this disclosure, an automated polishing device is provided, comprising a polishing mechanism and a sandpaper tearing device as described in the above embodiments; the polishing mechanism includes a polishing disc, on one side of which sandpaper is disposed, and a slot is provided in the middle of the polishing disc, the slot opening at least into the surface of the disc on which the sandpaper is disposed; the sandpaper tearing device is used to automatically tear off the sandpaper disposed on the polishing disc.

[0016] As can be seen from the above technical solution, the advantages and positive effects of the automated grinding and polishing equipment proposed in this disclosure are as follows: The automated grinding and polishing equipment disclosed herein, by adopting the sandpaper tearing device disclosed herein, can improve the efficiency and success rate of sandpaper tearing, which is conducive to improving the production efficiency of grinding and polishing operations of automated grinding and polishing equipment. Attached Figure Description

[0017] The various objectives, features, and advantages of this disclosure will become more apparent from the following detailed description of preferred embodiments of the disclosure taken in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein: Figure 1This is a three-dimensional structural schematic diagram of a sandpaper tearing device according to an exemplary embodiment; Figure 2 yes Figure 1 A three-dimensional structural schematic diagram of a sandpaper tearing device in a working state is shown. Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the diagram; Figure 4 yes Figure 2 An enlarged schematic diagram of part B in the diagram; Figure 5 yes Figure 1 An enlarged schematic diagram of part of the structure of the sandpaper tearing device is shown; Figure 6 yes Figure 5 An enlarged schematic diagram of part C in the diagram; Figure 7 yes Figure 5 An enlarged schematic diagram of part D in the diagram; Figure 8 yes Figure 1 The diagram shows a three-dimensional structure of the sandpaper tearing device in conjunction with a grinding disc.

[0018] The annotations in the attached figures are explained as follows: 100. Sandpaper tearing device; 110. Carrier plate; 111. First edge; 120. Hole cutter; 121. Blade; 122. Blade tip; 1221. Blade; 123. Receiving tank; 1231. First tank wall; 130. Guiding structure; 1311. First port; 1312. Second port; 132. Guiding unit; 1321. Part One; 13211. Ontology part; 13212. Installation Department; 1322. Part Two; 133. Connectors; 140. Tear into pieces; 141. First end; 142. Second end; 150. Drive cylinder; 151. Cylinder block; 152. Telescopic pole; 153. Adapter board; 1531. Adapter section; 200. Grinding disc; 210. Sandpaper; X. First direction; Y. Second direction; Z. Third-party orientation. Detailed Implementation

[0019] Typical embodiments embodying the features and advantages of this disclosure will be described in detail in the following description. It should be understood that this disclosure can have various variations in different embodiments without departing from the scope of this disclosure, and the descriptions and drawings therein are illustrative in nature and not intended to limit this disclosure.

[0020] In the following description of various exemplary embodiments of this disclosure, reference is made to the accompanying drawings, which form part of this disclosure, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of this disclosure. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of this disclosure. Furthermore, while the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of this disclosure, these terms are used herein only for convenience, such as the orientation according to the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this disclosure.

[0021] See Figure 1 The illustration shows a representative three-dimensional structural diagram of the sandpaper tearing device 100 proposed in this disclosure, specifically illustrating the state when the second end 142 of the tearing blade 140 does not extend beyond the second port 1312 of the guide channel. In this exemplary embodiment, the sandpaper tearing device 100 proposed in this disclosure is described as an example applied to automated grinding and polishing equipment. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the relevant designs of this disclosure to other types of grinding equipment, and these changes are still within the scope of the principles of the sandpaper tearing device 100 proposed in this disclosure.

[0022] like Figure 1As shown, in one embodiment of this disclosure, the sandpaper tearing device 100 is used to automatically tear off sandpaper 210 disposed on a grinding disc 200. The sandpaper 210 is disposed on one side of the grinding disc 200, and a slot (e.g., a through hole or a groove opening into the disc surface) is provided in the center of the grinding disc 200. The slot at least opens into the disc surface where the sandpaper 210 is disposed, and the sandpaper 210 covers the slot. Based on this, the sandpaper tearing device 100 includes a carrier plate 110, a cutting blade 120, a guide structure 130, two tearing blades 140, and a first driving mechanism. (See also...) Figures 2 to 8 , Figure 2 The diagram shows a three-dimensional structural schematic of the sandpaper tearing device 100 in a working state, specifically showing the state when the second end 142 of the tearing blade 140 extends out of the second port 1312 of the guide channel; Figure 3 China representatively shows Figure 1 Enlarged diagram of part A in the diagram Figure 4 China representatively shows Figure 2 An enlarged schematic diagram of part B in the diagram; Figure 5 The diagram shows a representative enlarged schematic of a portion of the structure of the sandpaper tearing device 100; Figure 6 China representatively shows Figure 5 An enlarged schematic diagram of part C in the diagram; Figure 7 China representatively shows Figure 5 An enlarged schematic diagram of part D in the diagram; Figure 8 The figure shows a representative three-dimensional structural diagram of the sandpaper tearing device 100 in conjunction with a grinding disc 200. The structure, connection method, and functional relationship of the main components of the sandpaper tearing device 100 disclosed herein will be described in detail below with reference to the above-mentioned figures.

[0023] like Figures 1 to 8As shown, in one embodiment of this disclosure, the carrier plate 110 is movable along a first direction X perpendicular to the surface of the grinding disc 200. The carrier plate 110 has a first edge 111 extending along a second direction Y perpendicular to the first direction X, i.e., the first edge 111 is perpendicular to the first direction X. The piercing cutter 120 includes a blade 121 and a cutting head 122. The blade 121 is disposed on the carrier plate 110 and extends out of the first edge 111 of the carrier plate 110 along the first direction X. The cutting head 122 is connected to the end of the blade 121 that extends out of the first edge 111. The guide structure 130 is disposed on the blade 121 of the piercing cutter 120. The guide structure 130 has two guide channels, the two ends of which are a first port 1311 and a second port 1312, respectively. The second port 1312 is located between the first port 1311 and the cutting head 122. In this design, the opening directions of the two first ports 1311 of the two guide channels are opposite to the cutter head 122 along the first direction X. The opening directions of the two second ports 1312 of the two guide channels are correspondingly arranged along the first direction X, and the opening directions of the two second ports 1312 are opposite along the second direction Y. For example, assuming that the first direction X and the second direction Y shown in the figure are both horizontal, and the first direction X is defined as "front and back directions", then the opening directions of the two second ports 1312 are "left and right directions" respectively. The two guide channels can respectively guide and restrict the movement of the two tearing blades 140. The two tearing blades 140 are respectively inserted into the two guide channels, and the two ends of the tearing blade 140 are a first end 141 and a second end 142, respectively. The first end 141 extends out of the first port 1311 of the guide channel and extends along the first direction X. The two first ends 141 of the two tearing blades 140 are connected to the first drive mechanism. The second end 142 can extend and retract from the second port 1312 of the guide channel along the second direction Y. The first driving mechanism is disposed on the carrier plate 110, and the first driving mechanism can drive the two first ends 141 to move synchronously along the first direction X. Through the above design, this disclosure can realize the tearing blade 140 being inserted between the sandpaper 210 and the grinding disc 200 through the middle of the sandpaper 210 for tearing. The two guide channels of the guide structure 130 realize the opposite extension and retraction of the two tearing blades 140, thereby solving the problems of high tearing difficulty and poor tearing effect of the existing solution using the edge tearing method of sandpaper 210, which is conducive to improving the efficiency and success rate of sandpaper 210 tearing.

[0024] As described above, the working process of tearing sandpaper 210 using the sandpaper tearing device 100 proposed in this disclosure generally includes the following: when it is necessary to tear sandpaper 210 set on the sanding disc 200, this disclosure drives the carrier plate 110 to move along the first direction X toward the sanding disc 200. During this movement, the cutting blade 120 cuts a hole in the middle position of the sanding disc 200 (e.g., but not limited to the geometric center position of the disc surface of the sanding disc 200) and extends into the slot of the sanding disc 200 until the positions of the two second ports 1312 correspond to the area between the disc surface of the sanding disc 200 and the sandpaper 210 (e.g., the area of ​​the adhesive layer that bonds the sanding disc 200 and the sandpaper 210), and the carrier plate 110 stops moving. Then, the first drive mechanism drives the two first ends 141 of the two tearing blades 140 to move synchronously towards the grinding disc 200 in the first direction X. Guided by the two guide channels, the two second ends 142 of the two tearing blades 140 extend from the two second ports 1312 and are inserted into the area between the grinding disc 200 and the sandpaper 210 on both sides of the slot. By controlling the extension length of the tearing blades 140, it is possible to select that the second end 142 of the tearing blades 140 extends beyond the edge of the sandpaper 210 when it is in place. Finally, the grinding disc 200 is rotated so that the two tearing blades 140 rotate relative to the sandpaper 210 and the grinding disc 200 (for example, a relative rotation of half a circle, i.e., 180°, or a certain angle of rotation beyond this, such as a total rotation of 185°, etc.), thereby achieving the complete removal and detachment of the sandpaper 210 from the surface of the grinding disc 200. After the sandpaper 210 is removed, the grinding disc 200 moves to another position along with other structures of the equipment (such as a robotic arm), such as moving to a new sandpaper 210 replacement station. This disclosure can drive the carrier plate 110 to reset and drive the two tearing blades 140 to retract respectively through the first driving mechanism, thus completing a complete sandpaper tearing process 210, and can wait for the next sandpaper tearing process 210 to begin.

[0025] like Figures 3 to 5 As shown, in one embodiment of this disclosure, a third direction Z is defined, which is perpendicular to the first direction X and the second direction Y. Based on this, the height of the cutting head 122 can be greater than the height of the cutting body 121, so that a receiving groove 123 is formed on the side of the cutting body 121 facing away from the carrier plate 110, i.e., the side of the cutting head 122 facing away from the carrier plate 110 in the third direction Z is higher than the side of the cutting body 121 facing away from the carrier plate 110. Accordingly, at least a portion of the guide structure 130 (e.g., but not limited to all shown in the figures) can be accommodated in the receiving groove 123. Through the above design, this disclosure can utilize the receiving groove 123 formed by the cutting blade 120 to accommodate the guide structure 130, which helps to simplify the structural complexity and facilitates the arrangement of the guide structure 130. In some embodiments, the guide structure 130 may also be disposed at other relative positions to the cutting blade 120, and is not limited to this embodiment.

[0026] like Figures 3 to 5 As shown, based on the design that the guide structure 130 is at least partially accommodated in the receiving groove 123 formed by the cutting blade 120, in one embodiment of this disclosure, along the third direction Z, the side of the blade head 122 away from the carrier plate 110 can be flush with the side of the guide channel away from the blade body 121. Through the above structural design, when the tearing blade 140 extends and inserts between the sandpaper 210 and the grinding disc 200, this disclosure can ensure that the tearing blade 140 is completely within the range of the opening cut by the blade head 122 on the sandpaper 210 in the third direction Z, avoiding the tearing blade 140 being blocked by the uncut sandpaper 210 when it extends, thus achieving a better extension effect for the tearing blade 140. In some embodiments, the side of the blade head 122 away from the carrier plate 110 can also extend beyond the side of the guide channel away from the blade body 121, that is, the side of the blade head 122 away from the carrier plate 110 is farther from the carrier plate 110 than the side of the guide channel away from the blade body 121, and is not limited to this embodiment.

[0027] like Figures 3 to 5 As shown, based on the design that the guide structure 130 is at least partially accommodated in the receiving groove 123 formed by the cutting blade 120, in one embodiment of this disclosure, the guide channel may include a first channel and a second channel. The first channel extends along a first direction X, and the second channel extends along a second direction Y. One end of the first channel and the second channel are bent and connected (e.g., using an arc-shaped bending structure). The other end of the first channel is the aforementioned first port 1311 of the guide channel, and the other end of the second channel is the aforementioned second port 1312 of the guide channel. On this basis, the portion of the blade head 122 facing the carrier plate 110 and extending beyond the blade body 121 in the third direction Z, opposite to the carrier plate 110, forms the first groove wall 1231 of the receiving groove 123. The portion of the guide structure 130 with the second channel (e.g., the second part 1322 in the following embodiment) may be disposed at the first groove wall 1231.

[0028] like Figures 3 to 7 As shown, in one embodiment of this disclosure, the guide structure 130 may include two guide units 132, and two guide channels are respectively disposed in the two guide units 132. The guide channel may be a hollow guide groove structure disposed in the guide unit 132. Specifically, the guide unit 132 includes a first part 1321 and a second part 1322, the first part 1321 extending along a first direction X, and the second part 1322 extending along a second direction Y. One end of the first part 1321 and the second part 1322 are bent and connected (for example, by adopting an arc-shaped bending structure), the first port 1311 of the guide channel is disposed on the other end face of the first part 1321, and the second port 1312 of the guide channel is disposed on the other end face of the second part 1322.

[0029] like Figures 3 to 7As shown, based on the design of the guide structure 130 including two guide units 132, and each guide unit 132 including a first part 1321 and a second part 1322, in one embodiment of this disclosure, the first part 1321 may include a body part 13211 and a mounting part 13212. One end of the body part 13211 is connected to the second part 1322, and one end of the mounting part 13212 is connected to the other end of the body part 13211. The first port 1311 of the guide channel is disposed on the other end face of the mounting part 13212. Furthermore, along the second direction Y, the width of the mounting part 13212 can be greater than the width of the body part 13211, and the guide unit 132 can be disposed on the carrier plate 110 via the mounting part 13212. Through the above design, this disclosure can utilize the mounting part 13212 to increase the assembly area between the guide unit 132 and the carrier plate 110, which helps to reduce assembly difficulty and improve the conversion effect. Meanwhile, by adopting a design with a narrower body portion 13211 for the first part 1321, material costs can be saved and the weight of the device can be reduced. In some embodiments, depending on the different assembly requirements of the guide unit 132 and the carrier plate 110 (hole cutter 120), the first part 1321 may also adopt a structure with a uniform width, for example, including only the body portion 13211 shown in the figure without including the mounting portion 13212, and is not limited to this embodiment.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, the first part 1321 based on the guide unit 132 includes a body part 13211 and a mounting part 13212. In one embodiment of this disclosure, at least a portion of the mounting part 13212 and a portion of the blade 121 can overlap on the orthographic projection onto the carrier plate 110. Accordingly, the mounting part 13212 and the blade 121 can be jointly disposed on the carrier plate 110 via the connector 133. Through the above design, this disclosure can simultaneously assemble the guide structure 130 and the cutting blade 120 to the carrier plate 110 using the connector 133, which helps to reduce assembly steps, improve assembly efficiency, and reduce structural complexity.

[0031] like Figure 5As shown, based on the design of the guide structure 130 including two guide units 132, in one embodiment of this disclosure, the two guide units 132 are symmetrically arranged about an axis of symmetry extending along the second direction Y. That is, a reference plane is defined parallel to the first direction X and parallel to the second direction Y, and the orthographic projections of the two guide units 132 on this reference plane are symmetrical in shape. In other words, the two guide channels are also symmetrically arranged about the aforementioned axis of symmetry. In other words, the two guide units 132 can be identical components and arranged in a mirror image. Through the above design, this disclosure can reduce structural complexity. When the guide structure 130 includes two guide units 132, there is no need to add an additional guide unit 132 to select "left" or "right" when assembling the sandpaper tearing device 100, further improving manufacturing efficiency and avoiding misassembly. In some embodiments, when the guide structure 130 is an integral component and both guide channels are disposed on the integral component, the two guide channels can still adopt the above-mentioned symmetrical design, and are not limited to this embodiment.

[0032] like Figure 3 As shown, in one embodiment of this disclosure, the second end 142 of the tear strip 140 can be wedge-shaped. Through this design, the present disclosure utilizes the wedge-shaped tear strip 140 to more easily separate the connection (e.g., adhesive layer bonding) between the sandpaper 210 and the grinding disc 200. In some embodiments, the second end 142 of the tear strip 140 can also be other shapes. For example, the second end 142 of the tear strip 140 can be arc-shaped (e.g., but not limited to a rounded chamfered structure). Accordingly, the present disclosure can effectively prevent the tear strip 140 from hooking onto the sandpaper 210 and the grinding disc 200 when the tear strip 140 is inserted between them, ensuring smooth insertion of the tear strip 140.

[0033] In one embodiment of this disclosure, the material of the tear strip 140 may be a flexible material, such as, but not limited to, a flexible metal material.

[0034] like Figure 5 As shown, in one embodiment of this disclosure, the blade head 122 can be wedge-shaped, and the cutting edge 1221 of the cutting blade head 122 can extend along the second direction Y. In other words, the extension direction of the cutting edge 1221 is parallel to the opening direction of the second port 1312 of the guide channel, that is, the extension and retraction direction of the tearing blade 140 from the second port 1312 is parallel to the extension direction of the cutting edge 1221. With the above design, when the piercing knife breaks through the sandpaper 210, the wedge-shaped structure of the blade head 122 can expand the pores of the sandpaper 210, making it easier for the two tearing blades 140 to extend better.

[0035] like Figure 1 and Figure 2As shown, in one embodiment of this disclosure, the first driving mechanism can be a driving cylinder 150. Specifically, the driving cylinder 150 includes a cylinder body 151 and a telescopic rod 152. The cylinder body 151 is disposed on the carrier plate 110, and the telescopic rod 152 extends along a first direction X and can extend and retract from the side of the cylinder body 151 near the cutting blade 120. Furthermore, an adapter plate 153 is connected to one end of the telescopic rod 152 extending out of the cylinder body 151. The adapter plate 153 has an adapter portion 1531 extending along the first direction X, and the first ends 141 of the two tearing blades 140 are connected to this adapter portion 1531. Through the above design, this disclosure eliminates the need to bend the first end 141 of the tear strip 140, and allows the first end 141 to be connected using the adapter 1531. Furthermore, by utilizing the unrestricted nature of the adapter 1531 in the first direction X, the connection area between the first end 141 and the adapter 1531 can be designed to be larger in the first direction X, thereby enhancing the connection effect between the telescopic bar and the tear strip 140. In some embodiments, the first drive mechanism may also employ other drive devices, such as a motor, electric actuator, or drive screw mechanism, and is not limited to this embodiment.

[0036] In one embodiment of this disclosure, in order to realize the movement of the carrier plate 110 along the first direction X, a second driving mechanism (not shown in the figures) can be provided to drive the carrier plate 110. The second driving mechanism can be a cylinder, a motor, an electric actuator, a drive screw mechanism, etc.

[0037] It should be noted that the sandpaper tearing devices shown in the accompanying drawings and described in this specification are merely a few examples among many sandpaper tearing devices capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the sandpaper tearing devices shown in the accompanying drawings or described in this specification.

[0038] In summary, the sandpaper tearing device 100 disclosed herein includes a carrier plate 110, a cutting blade 120, a guide structure 130, two tearing blades 140, and a first driving mechanism. The carrier plate 110 is movable along a first direction X. The cutting blade 120 includes a blade body 121 and a cutting head 122. The blade body 121 is disposed on the carrier plate 110 and extends out of the carrier plate 110 along the first direction X, and the cutting head 122 is connected to the end of the blade body 121. The guide structure 130 is disposed on the blade body 121 and has two guide channels. The two ends of the guide channels are a first port 1311 and a second port 1312, respectively. The second port 1312 is located between the first port 1311 and the cutting head 122. The opening directions of the two first ports 1311 are opposite to the cutting head 122 along the first direction X, and the two second ports 1312 are arranged correspondingly in the first direction X and their opening directions are opposite along the second direction Y. Two tearing blades 140 are respectively inserted into two guide channels, with the two ends of the tearing blades 140 being a first end 141 and a second end 142, respectively. The first end 141 extends out of the first port 1311 and extends along the first direction X, and the two first ends 141 are connected to the first drive mechanism. The second end 142 can extend and retract from the second port 1312 along the second direction Y. Through the above design, this disclosure can realize that the tearing blades 140 are inserted between the sandpaper 210 and the grinding disc 200 through the middle of the sandpaper 210 for tearing, and the two guide channels of the guide structure 130 realize the opposite extension and retraction of the two tearing blades 140. This solves the problems of high tearing difficulty and poor tearing effect of the existing solution using the edge tearing method of sandpaper 210, and is conducive to improving the efficiency and success rate of sandpaper 210 tearing.

[0039] Based on the detailed description of several exemplary embodiments of the sandpaper tearing device 100 proposed in this disclosure above, an exemplary embodiment of the automated grinding and polishing equipment proposed in this disclosure will be described below.

[0040] According to one aspect of this disclosure, an automated polishing apparatus is provided, comprising a polishing mechanism and a sandpaper-tearing device 100 as described in the above embodiment. The polishing mechanism includes a polishing disc 200, on one side of which sandpaper 210 is disposed, and a slot is provided in the center of the polishing disc 200, the slot opening at least into the disc surface where the sandpaper 210 is disposed. The sandpaper-tearing device 100 is used to automatically tear off the sandpaper 210 disposed on the polishing disc 200.

[0041] It should be noted that the automated grinding and polishing equipment shown in the accompanying drawings and described in this specification are merely a few examples among many automated grinding and polishing equipment capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the automated grinding and polishing equipment shown in the accompanying drawings or described in this specification.

[0042] In summary, the automated grinding and polishing equipment proposed in this disclosure, by adopting the sandpaper tearing device 100 proposed in this disclosure, can improve the efficiency and success rate of sandpaper 210 tearing, which is conducive to improving the production efficiency of grinding and polishing operations of automated grinding and polishing equipment.

[0043] The foregoing has described and / or illustrated exemplary embodiments of the sandpaper tearing device and automated polishing equipment disclosed herein. However, the embodiments of this disclosure are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms “a,” “an,” and “the above” are used to indicate the presence of one or more elements / components / etc. The terms “comprising,” “including,” and “having” are used to indicate an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to those listed. Furthermore, the terms “first” and “second” in the claims and specification are used only as illustrative marks and are not intended to limit the numerical scope of the subject matter.

[0044] Although the sandpaper tearing apparatus and automated polishing equipment disclosed herein have been described with respect to different specific embodiments, those skilled in the art will recognize that modifications may be made to the implementation of this disclosure within the spirit and scope of the claims.

Claims

1. A sandpaper tearing device for automatically tearing sandpaper off a sanding disc, wherein the sandpaper is disposed on one side of the sanding disc, a slot is provided in the middle of the sanding disc, the slot has an opening on the disc surface where the sandpaper is disposed, and the sandpaper covers the slot; characterized in that: The sandpaper tearing device includes a carrier plate, a cutting blade, a guide structure, two tearing blades, and a first driving mechanism. The carrier plate is movable along a first direction perpendicular to the surface of the grinding disc and has a first edge extending along a second direction perpendicular to the first direction. The cutting tool includes a blade and a cutting head. The blade is disposed on the carrier plate and extends out of the first edge along the first direction. The cutting head is connected to the end of the blade that extends out of the first edge. The guide structure is disposed on the blade body and has two guide channels. The two ends of the guide channels are a first port and a second port, respectively. The second port is located between the first port and the blade head. The opening directions of the two first ports are respectively opposite to the blade head along the first direction. The two second ports are arranged correspondingly in the first direction and their opening directions are opposite along the second direction. The guide channel includes a first channel and a second channel. The first channel extends along the first direction, and the second channel extends along the second direction. One end of the first channel and one end of the second channel are bent and connected. The other end of the first channel is the first port, and the other end of the second channel is the second port. Along a third direction perpendicular to both the first and second directions, the height of the cutting head is greater than the height of the cutting body, so that a receiving groove is formed on the side of the cutting body facing away from the carrier plate; the guiding structure is at least partially accommodated in the receiving groove; wherein, the end face of the cutting head facing the carrier plate in the third direction that extends beyond the cutting body and faces away from the carrier plate forms the first groove wall of the receiving groove, and the portion of the guiding structure having the second channel is disposed at the first groove wall; The guiding structure includes two guiding units, and each of the two guiding channels is disposed in one guiding unit; wherein, the guiding unit includes a first part and a second part, the first part extends along the first direction, the second part extends along the second direction, one end of the first part and one end of the second part are bent and connected, the first port is disposed on the other end face of the first part, and the second port is disposed on the other end face of the second part; The two tear pieces are respectively inserted through the two guide channels, and the two ends of the tear pieces are a first end and a second end, respectively; the first end extends out of the first port and extends along the first direction, and the two first ends are connected to the first drive mechanism; the second end can extend and retract from the second port along the second direction; The first driving mechanism is disposed on the carrier plate and can drive the two first ends to move synchronously along the first direction.

2. The sanding device of claim 1, wherein Along the third direction, the side of the cutter head away from the carrier plate extends beyond or is flush with the side of the guide channel away from the cutter body.

3. The sandpaper tearing device according to claim 1, characterized in that, The first part includes a body part and a mounting part. One end of the body part is connected to the second part, and one end of the mounting part is connected to the other end of the body part. The first port is disposed on the end face of the other end of the mounting part. In the second direction, the width of the mounting part is greater than the width of the body part, and the guide unit is disposed on the carrier plate via the mounting part.

4. The sandpaper tearing device according to claim 3, characterized in that, At least a portion of the mounting portion overlaps with a portion of the blade on the carrier plate in its orthographic projection, and the mounting portion and the blade are jointly disposed on the carrier plate via a connector.

5. The sandpaper tearing device according to claim 1, characterized in that, The two guide units are identical in structure and are arranged in a mirror image along the second direction, so that the two guide channels are arranged symmetrically about an axis of symmetry extending along the first direction.

6. The sandpaper tearing device according to claim 1, characterized in that: The second end of the tear is wedge-shaped or arc-shaped; and / or The blade is wedge-shaped, and the cutting edge of the blade extends along the second direction.

7. An automated grinding and polishing equipment, characterized in that, It includes a polishing mechanism and a sandpaper tearing device as described in any one of claims 1 to 6; the polishing mechanism includes a polishing disc.

Images