Table tennis ball edge grinding device

Abstract

The invention relates to the technical field of table tennis edge grinding, in particular to a table tennis edge grinding device which comprises a machining table, a fixing frame is fixedly mounted on the upper surface of the machining table, a lead screw is rotatably mounted on the inner side of the fixing frame, and a negative pressure fixing mechanism is arranged on the outer surface of the lead screw. An edge grinding mechanism is arranged at the position, close to one side of the negative pressure fixing mechanism, of the upper surface of the fixing frame, a supporting frame is fixedly installed at the bottom of the machining table, and the negative pressure fixing mechanism comprises two clamping plates; the negative pressure fixing mechanism can effectively perform proper flexible clamping and negative pressure adsorption fixing on the polypropylene table tennis ball which is soft in texture and smooth in surface, so that the overall clamping and fixing stability of the table tennis ball is improved; and meanwhile, an adjusting dust suction mechanism arranged in the device can effectively suck and remove powdered scraps generated in the edge scraping process of the table tennis ball and a small amount of powdered scraps which float and adhere to the inner side of a rubber pad and a negative pressure hose.

Description

Technical Field

[0001] The invention relates to the technical field of table tennis ball edge grinding, in particular to a table tennis ball edge grinding device. Background Art

[0002] Polypropylene table tennis ball is a table tennis ball made of polypropylene material. Polypropylene is a plastic material with excellent properties such as heat resistance, weathering resistance, low temperature resistance and good plasticity. Therefore, it is widely used in the manufacture of various sports equipment.

[0003] Polypropylene table tennis balls are softer in texture than table tennis balls made of other materials, and their overall appearance is a smooth round shape. Therefore, the fixing mechanism in the existing table tennis ball edge grinding mechanism is difficult to properly and stably clamp the table tennis ball. At the same time, when the table tennis ball is scraped by the scraper to remove the excess edge of the outer surface, the excess edge will fall to the bottom, and the powder generated in this process is very easy to float and adhere to the fixing mechanism, which is more unfavorable for the subsequent fixing mechanism to stably clamp and fix the table tennis ball. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a table tennis ball edge grinding device.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a table tennis edge grinding device, comprising a processing table, a fixing frame is fixedly installed on the upper surface of the processing table, a screw rod is rotatably installed on the inner side of the fixing frame, a negative pressure fixing mechanism is arranged on the outer surface of the screw rod, an edge grinding mechanism is arranged on the upper surface of the fixing frame and on one side close to the negative pressure fixing mechanism, and a support frame is fixedly installed on the bottom of the processing table; The negative pressure fixing mechanism comprises two clamping plates, the inner sides of the two clamping plates are respectively rotatably mounted with clamping rings, the inner sides of the clamping rings are fixedly mounted with rubber pads, the inner sides of the clamping rings are fixedly mounted with an annular duct, the inner sides of the two annular ducts are correspondingly fixedly mounted with a group of negative pressure hoses inclined downward and a group of negative pressure hoses inclined upward, one end of the negative pressure hoses passes through the inner sides of the clamping rings and the inner sides of the rubber pads in sequence; A dust collecting mechanism is arranged on one of the clamping plates, and the dust collecting mechanism comprises a dust collecting box and two suction nozzles. The dust collecting box is fixedly mounted at the front end of one of the clamping plates, and the two suction nozzles are movably arranged at the inner sides of the two rubber pads.

[0006] Preferably, the edge grinding mechanism includes a fixed seat, which is fixedly installed on the upper surface of the fixed frame near one end, a connecting plate is fixedly installed on one side of the fixed seat, a telescopic cylinder is fixedly installed inside the fixed seat near the upper end, the telescopic end of the telescopic cylinder is fixedly connected to a sliding frame, the bottom end of the sliding frame is slidably matched with a sliding groove opened on the upper surface of the connecting plate, and a scraper is fixedly installed on the upper end of the sliding frame.

[0007] Preferably, the negative pressure fixing mechanism also includes two connecting frames, which are respectively fixedly installed on the upper and lower sides of the two clamping rings, a connecting shaft is fixedly installed in the middle of the outer surface of the connecting frame, an air duct is fixedly installed inside the connecting shaft, a first hose is fixedly connected to one side of the air duct near the bottom end, and the bottom end of the first hose passes through one side of the connecting shaft and is fixedly connected to the upper side of the annular duct with the upper side of the clamping ring in turn.

[0008] Preferably, a rotating box is fixedly connected to the upper end of the air duct, the upper end surface of one rotating box is fixedly connected to the output shaft of the second motor, the outer surface of the second motor is fixedly mounted on the upper surface of a clamping plate via a mounting bracket, the lower end surface of the other rotating box is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is rotatably connected to the inside of another mounting bracket, the other mounting bracket is fixedly mounted on the lower surface of another clamping plate, a rotating cylinder is rotatably mounted on the inner side of the rotating box, and a fixed tube is fixedly connected to one side of the rotating cylinder.

[0009] Preferably, one end of the two fixed tubes passes through the interior of the two mounting frames and is respectively fixedly connected to one side and the bottom end of the telescopic tube, the upper end of the telescopic tube passes through the upper end of the fixing frame and is fixedly connected to one end of the supporting tube, the other end of the supporting tube is fixedly connected to the air inlet of the vacuum pump, and the vacuum pump is fixedly mounted at the upper end of the fixing frame.

[0010] Preferably, one end of one of the clamping plates is fixedly connected to one side of the fixing frame, one end of the other clamping plate is slidingly matched with a slide groove opened on one side of the fixing frame, the interior of the other clamping plate is threadedly matched with the outer surface of the screw rod, and the upper end of the screw rod passes through the upper end of the fixing frame and is fixedly connected to the output shaft of the first motor.

[0011] Preferably, one side of the first motor is fixedly mounted on the upper end surface of the fixing frame by a fixing part, the inner sides of the two clamping rings clamp a ping-pong ball, a collection box is fixedly mounted on the fixing frame and below the ping-pong ball, an assembly plate is fixedly mounted on the upper surface of one of the clamping rings and close to one side, an assembly seat is fixedly mounted on the corresponding position of the upper surface of the other clamping ring, and the upper end of the assembly plate is plug-fitted into the insertion hole opened on the lower surface of the assembly seat.

[0012] Preferably, the adjustable dust suction mechanism also includes a connecting seat, which is fixedly mounted on the upper surface of a clamping plate close to one side, a driving shaft is rotatably mounted on the inner side of the connecting seat, one end of the driving shaft is fixedly connected to the output shaft of the third motor, the bottom side of the third motor is fixedly mounted on one side of the connecting seat through a fixing part, and a rotating frame is fixedly mounted on the outer surface of the driving shaft, and suction nozzles are fixedly connected to the bottom and upper ends of the rotating frame respectively, and the upper and lower ends of the two suction nozzles are fixedly connected to the upper and lower ends of the connecting pipes.

[0013] Preferably, a second hose is fixedly connected to one side of the connecting pipe, one end of the second hose passes through the interior of the rotating frame and is fixedly connected to an air guide box, the air guide box is fixedly installed on the lower surface of a clamping plate, a third hose is fixedly connected to the front side of the air guide box, one end of the third hose is fixedly connected to the bottom of the dust collection box, the bottom end of the air guide box is fixedly connected to a fourth hose, and a control unit is fixedly installed on the left side of the fixed frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a ping-pong ball is placed in a clamping ring on the inner side of a clamping plate, and then a first motor is started. The first motor drives the screw rod to rotate, and the screw rod drives another clamping plate to move downward to another clamping ring to be mounted on the outer side of the ping-pong ball. When the two clamping rings gradually approach each other, a vacuum pump is started, and the vacuum pump transmits negative pressure adsorption force to the two rotating boxes through the support tube, the telescopic tube and the two fixed tubes respectively. The negative pressure adsorption force is then transmitted to the two first hoses respectively through the two air guide tubes, and then transmitted to the two annular ducts respectively through the two first hoses, and then transmitted to the two groups of negative pressure hoses respectively through the two annular ducts, so that the rubber pads respectively arranged on the inner sides of the two clamping rings and a group of downwardly inclined negative pressure hoses and a group of upwardly inclined negative pressure hoses correspondingly arranged on the two rubber pads flexibly clamp and fix the outer surface of the ping-pong ball by negative pressure adsorption, thereby improving the stability of clamping and fixing the soft and smooth ping-pong ball, which is beneficial to the subsequent better scraping operation.

[0015] 2. In the present invention, the excess waste generated by scraping the edge of the table tennis ball falls into the collection box below and is subsequently processed in a centralized manner. As for the powder generated by scraping the edge of the table tennis ball, the dust suction wind is transported to the air guide box through the fourth hose, and the dust suction wind is then transported to the dust suction box through the third hose. The dust suction box suctions most of the powder generated during the scraping of the table tennis ball. As for a small amount of powder attached to the rubber pad due to floating in the air, the vacuum pump is stopped and started, and a clamping plate is driven to move upward by starting the first motor. After the worker takes off the table tennis ball, the third motor is started again. The third motor drives the drive shaft to rotate 180 degrees counterclockwise, and the drive shaft drives the rotating frame and the rotating frame to rotate 180 degrees counterclockwise. The suction nozzles installed at the upper and lower ends of the moving frame rotate to the inner sides of the clamping rings respectively, and start the first motor to drive the assembly seat installed on one clamping ring to assemble and cooperate with the assembly plate installed on the other clamping ring, and then open the solenoid valve arranged inside the second hose, and the dust suction wind is respectively delivered to the two suction nozzles through the second hose and the connecting pipe, and then start the second motor. The second motor first drives the two clamping rings to rotate clockwise about 85 degrees, so that the assembly plate is close to one side of the rotating frame, and then rotates counterclockwise about 355 degrees, so that the assembly plate is close to the other side of the rotating frame, so that the two suction nozzles can quickly and effectively remove the powder adhered to the inner side of the rubber pad and the negative pressure hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the overall appearance of a table tennis ball edge grinding device of the present invention; Figure 2 It is a structural schematic diagram of the main mechanism of a table tennis ball edge grinding device of the present invention; Figure 3 It is a structural schematic diagram of the fixing frame and the negative pressure fixing mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the negative pressure fixing mechanism and the regulating dust suction mechanism of the present invention; Figure 5 It is a structural schematic diagram of the negative pressure fixing mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of two clamping rings of the present invention; Figure 7 It is a structural schematic diagram of the dust collecting mechanism of the present invention; Figure 8 For the present invention Figure 5 Schematic diagram of the structure enlarged at point A in the middle.

[0017] In the figure: 1, processing table; 2, fixed frame; 3, screw rod; 4, clamping plate; 5, clamping ring; 6, rubber pad; 7, annular duct; 8, negative pressure hose; 9, suction nozzle; 10, dust suction box; 11, fixed seat; 12, telescopic cylinder; 13, sliding frame; 14, rotating box; 15, scraping knife; 16, connecting frame; 17, first motor; 18, table tennis ball; 19, collecting box; 20, connecting shaft; 21, air duct; 22 , first hose; 23, second motor; 24, rotating shaft; 25, rotating cylinder; 26, assembly plate; 27, fixed tube; 28, telescopic tube; 29, supporting tube; 30, vacuum pump; 31, connecting seat; 32, driving shaft; 33, third motor; 34, rotating frame; 35, connecting pipe; 36, second hose; 37, air guide box; 38, fourth hose; 39, control unit; 40, third hose; 41, assembly seat. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] like Figure 1 and Figure 2 The table tennis ball edge grinding device shown in the figure comprises a processing table 1, a fixing frame 2 is fixedly mounted on the upper surface of the processing table 1, a screw rod 3 is rotatably mounted on the inner side of the fixing frame 2, a negative pressure fixing mechanism is arranged on the outer surface of the screw rod 3, an edge grinding mechanism is arranged on the upper surface of the fixing frame 2 and on one side close to the negative pressure fixing mechanism, a support frame is fixedly mounted on the bottom of the processing table 1, the edge grinding mechanism comprises a fixing seat 11, the fixing seat 11 is fixedly mounted on the upper surface of the fixing frame 2 and close to one end, a connecting plate is fixedly mounted on one side of the fixing seat 11, a telescopic cylinder 12 is fixedly mounted inside the fixing seat 11 and close to the upper end, a sliding frame 13 is fixedly connected to the telescopic end of the telescopic cylinder 12, the bottom end of the sliding frame 13 is slidably matched with the slide groove provided on the upper surface of the connecting plate, and a scraper 15 is fixedly mounted on the upper end of the sliding frame 13. The telescopic cylinder 12 is started, and the telescopic cylinder 12 drives the scraper 15 to move to the middle redundant edge of the table tennis ball 18.

[0020] like Figure 2-Figure 6As shown, the negative pressure fixing mechanism includes two clamping plates 4, and the inner sides of the two clamping plates 4 are respectively rotatably mounted with clamping rings 5, and the inner sides of the clamping rings 5 ​​are fixedly mounted with rubber pads 6, and the inner sides of the clamping rings 5 ​​are fixedly mounted with an annular conduit 7, and the inner sides of the two annular conduits 7 are correspondingly fixedly mounted with a group of downwardly inclined negative pressure hoses 8 and a group of upwardly inclined negative pressure hoses 8, and one end of the negative pressure hoses 8 passes through the inner sides of the clamping rings 5 ​​and the inner sides of the rubber pads 6 in sequence; the negative pressure fixing mechanism also includes two connecting frames 16, and the two connecting frames 16 are respectively fixedly mounted on the upper and lower sides of the two clamping rings 5, and the outer surfaces of the connecting frames 16 are A connecting shaft 20 is fixedly installed at the middle, and an air duct 21 is fixedly installed inside the connecting shaft 20. A first hose 22 is fixedly connected to one side of the air duct 21 and near the bottom end. The bottom end of the first hose 22 passes through one side of the connecting shaft 20 and is fixedly connected to the upper side of the annular conduit 7 on the upper side of the clamping ring 5 in turn. A ping-pong ball 18 is placed in a clamping ring 5 on the inner side of a clamping plate 4, and then the first motor 17 is started. The first motor 17 drives the screw rod 3 to rotate, and the screw rod 3 drives another clamping plate 4 to move downward until another clamping ring 5 is fitted to the outside of the ping-pong ball 18, and the two clamping rings 5 ​​gradually approach each other.

[0021] The upper end of the air duct 21 is fixedly connected with a rotating box 14, the upper end surface of one rotating box 14 is fixedly connected with the output shaft of the second motor 23, the outer surface of the second motor 23 is fixedly mounted on the upper surface of a clamping plate 4 through a mounting bracket, the lower end surface of the other rotating box 14 is fixedly connected with a rotating shaft 24, the bottom end of the rotating shaft 24 is rotatably connected to the inside of another mounting bracket, the other mounting bracket is fixedly mounted on the lower surface of another clamping plate 4, the inner side of the rotating box 14 is rotatably mounted with a rotating cylinder 25, one side of the rotating cylinder 25 A fixed tube 27 is fixedly connected, one end of the two fixed tubes 27 passes through the inside of the two mounting frames and is fixedly connected to one side and the bottom of the telescopic tube 28 respectively, the upper end of the telescopic tube 28 passes through the upper end of the fixed frame 2 and is fixedly connected to one end of the support tube 29, the other end of the support tube 29 is fixedly connected to the air inlet of the vacuum pump 30, and the vacuum pump 30 is fixedly installed at the upper end of the fixed frame 2, one end of a clamping plate 4 is fixedly connected to one side of the fixed frame 2, one end of the other clamping plate 4 is slidably matched with a slide groove opened on one side of the fixed frame 2, and the other clamping plate 4 The inner part of the screw rod 3 is threadedly matched with the outer surface of the screw rod 3. The upper end of the screw rod 3 passes through the upper end of the fixing frame 2 and is fixedly connected to the output shaft of the first motor 17. One side of the first motor 17 is fixedly installed on the upper end surface of the fixing frame 2 through a fixing piece. The inner sides of the two clamping rings 5 ​​clamp the table tennis ball 18. The vacuum pump 30 is started. The vacuum pump 30 transmits negative pressure adsorption force to the two rotating boxes 14 through the support tube 29, the telescopic tube 28 and the two fixed tubes 27 respectively. The negative pressure adsorption force is then transmitted to the two first hoses 22 respectively through the two air guide pipes 21. , and then transported to the two annular ducts 7 through the two first hoses 22, and then transported to the two groups of negative pressure hoses 8 through the two annular ducts 7, so that the rubber pads 6 respectively arranged on the inner sides of the two clamping rings 5 ​​and a group of downwardly inclined negative pressure hoses 8 and a group of upwardly inclined negative pressure hoses 8 correspondingly arranged on the two rubber pads 6 flexibly clamp and negatively adsorb and fix the outer surface of the table tennis ball 18, thereby improving the stability of clamping and fixing the soft and overall smooth table tennis ball 18, which is conducive to better subsequent scraping operations.

[0022] A collection box 19 is fixedly installed on the fixed frame 2 and located below the table tennis ball 18. An assembly plate 26 is fixedly installed on the upper surface of a clamping ring 5 and near one side. An assembly seat 41 is fixedly installed at the corresponding position on the upper surface of the other clamping ring 5. The upper end of the assembly plate 26 is inserted and matched with the insertion hole opened on the lower surface of the assembly seat 41. When one clamping plate 4 moves to a suitable position toward the other clamping plate 4, the insertion hole in the assembly seat 41 installed on one clamping ring 5 is inserted and matched with the upper end of the assembly plate 26 installed on the other clamping ring 5, and the second motor 23 is started. The second motor 23 drives the connecting shaft 20 and the two clamping rings 5 ​​below and the table tennis ball 18 clamped inside the clamping ring 5 to rotate quickly and cooperate with the moving scraper 15, so as to scrape the excess edge in the middle of the outer surface of the table tennis ball 18.

[0023] like Figure 4 and Figure 7 As shown, a clamping plate 4 is provided with an adjustable dust suction mechanism, which includes a dust suction box 10 and two suction nozzles 9. The dust suction box 10 is fixedly mounted at the front end of a clamping plate 4, and the two suction nozzles 9 are movably arranged on the inner side of two rubber pads 6. The adjustable dust suction mechanism also includes a connecting seat 31, which is fixedly mounted on the upper surface of a clamping plate 4 and close to one side. A driving shaft 32 is rotatably mounted on the inner side of the connecting seat 31, and one end of the driving shaft 32 is fixedly connected to the output shaft of the third motor 33. The bottom side of the third motor 33 is fixedly mounted on one side of the connecting seat 31 through a fixing member. A rotating frame 34 is fixedly mounted on the outer surface of the shaft 32, and suction nozzles 9 are fixedly connected to the bottom and upper ends of the rotating frame 34 respectively, and the upper and lower sides of the two suction nozzles 9 are fixedly connected to the upper and lower ends of the connecting tube 35, and one side of the connecting tube 35 is fixedly connected to a second hose 36, and one end of the second hose 36 passes through the interior of the rotating frame 34 and is fixedly connected to an air guide box 37, which is fixedly installed on the lower surface of a clamping plate 4, and a third hose 40 is fixedly connected to the front side of the air guide box 37, and one end of the third hose 40 is fixedly connected to the bottom of the dust collection box 10, and the bottom end of the air guide box 37 is fixedly connected to the fourth hose 38. Then start the third motor 33, the third motor 33 drives the driving shaft 32 to rotate 180 degrees counterclockwise, and the driving shaft 32 drives the rotating frame 34 and the suction nozzles 9 installed at the upper and lower ends of the rotating frame 34 to rotate to the inner side of the clamping ring 5 respectively, and start the first motor 17 to drive the assembly seat 41 installed on one clamping ring 5 to assemble and cooperate with the assembly plate 26 installed on the other clamping ring 5, and then open the solenoid valve arranged inside the second hose 36, and the dust suction wind is respectively delivered to the two suction nozzles 9 through the second hose 36 and the connecting pipe 35, and then start the second motor 23, the second motor 23 first drives the two clamping rings 5 ​​to rotate clockwise about 85 degrees, so that the assembly plate 26 is close to one side of the rotating frame 34, and then rotates counterclockwise about 355 degrees, so that the assembly plate 26 is close to the other side of the rotating frame 34, so that the two suction nozzles 9 can quickly and effectively suck away the powder and debris adhered to the inner side of the rubber pad 6 and the negative pressure hose 8.

[0024] like Figure 4-Figure 8As shown, a control unit 39 is fixedly installed on the left side of the fixing frame 2. When it is necessary to scrape the outer surface of the ping-pong ball 18, the control unit 39 controls the first motor 17, the second motor 23, the vacuum pump 30 and the telescopic cylinder 12 to cooperate to scrape the excess edges on the outer surface of the ping-pong ball 18. When it is necessary to vacuum the powder generated when the ping-pong ball 18 is scraped, since the second hose 36 is provided with a solenoid valve inside, the control unit 39 controls the first motor 17, the second motor 23, the vacuum pump 30 and the third motor 33 and the solenoid valve to effectively cooperate, thereby sucking away most of the powder generated by scraping the ping-pong ball 18 and synchronously sucking away a small amount of dust adhering to the inner side of the rubber pad 6 and the negative pressure hose 8.

[0025] During use, the table tennis ball 18 is placed in a clamping ring 5 inside a clamping plate 4, and then the first motor 17 is started. The first motor 17 drives the screw rod 3 to rotate, and the screw rod 3 drives another clamping plate 4 to move downward until another clamping ring 5 is fitted to the outside of the table tennis ball 18. While the two clamping rings 5 ​​gradually approach each other, the vacuum pump 30 is started. The vacuum pump 30 transmits negative pressure adsorption force to the two rotating boxes 14 through the support tube 29, the telescopic tube 28 and the two fixed tubes 27 respectively, and the negative pressure adsorption force is then transmitted to the two first rotating boxes 14 through the two air guide tubes 21. The rubber pads 6 respectively arranged on the inner sides of the two clamping rings 5 ​​and the corresponding groups of negative pressure hoses 8 and negative pressure hoses 8 arranged on the two rubber pads 6 flexibly clamp and fix the outer surface of the table tennis ball 18 by negative pressure adsorption, thereby improving the stability of clamping and fixing the table tennis ball 18 which is relatively soft and smooth as a whole, and facilitating better scraping operation in the future; After that, the telescopic cylinder 12 is started, and the telescopic cylinder 12 drives the scraper 15 to move toward the middle excess edge of the table tennis ball 18. When one clamping plate 4 moves to the other clamping plate 4 to a suitable position, the insertion hole in the assembly seat 41 installed on one clamping ring 5 is inserted and matched with the upper end of the assembly plate 26 installed on the other clamping ring 5. At the same time, the second motor 23 is started, and the second motor 23 drives the connecting shaft 20 and the two clamping rings 5 ​​below and the table tennis ball 18 clamped inside the clamping ring 5 to rotate quickly and cooperate with the moving scraper 15, so as to perform the scraping operation on the excess edge in the middle of the outer surface of the table tennis ball 18. Excess waste generated by scraping the edge of the ping-pong ball 18 falls into the collection box 19 below for subsequent centralized processing. As for the powder generated by scraping the edge of the ping-pong ball 18, the dust suction wind is transported to the air guide box 37 through the fourth hose 38, and the dust suction wind is then transported to the dust box 10 through the third hose 40. The dust box 10 removes most of the powder generated during the scraping of the ping-pong ball 18. For a small amount of powder that is attached to the rubber pad 6 due to floating in the air, the vacuum pump 30 is stopped and started, and a clamping plate 4 is driven to move upward by starting the first motor 17. After the worker takes off the ping-pong ball 18, the third motor 33 is started again. The third motor 33 drives the drive shaft 32 to rotate 180 degrees counterclockwise, and the drive shaft 32 drives the rotating frame 34 and the rotating frame The suction nozzles 9 installed at the upper and lower ends of 34 rotate to the inner side of the clamping ring 5 respectively, and start the first motor 17 to drive the assembly seat 41 installed on one clamping ring 5 to assemble and cooperate with the assembly plate 26 installed on the other clamping ring 5, then open the solenoid valve arranged inside the second hose 36, and the dust suction wind is respectively delivered to the two suction nozzles 9 through the second hose 36 and the connecting pipe 35, and then start the second motor 23. The second motor 23 first drives the two clamping rings 5 ​​to rotate clockwise about 85 degrees, so that the assembly plate 26 is close to one side of the rotating frame 34, and then rotates counterclockwise about 355 degrees, so that the assembly plate 26 is close to the other side of the rotating frame 34, so that the two suction nozzles 9 can quickly and effectively remove the powder and debris adhered to the inner side of the rubber pad 6 and the negative pressure hose 8.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A table tennis ball edge grinding device, comprising a processing table (1), characterized in that: A fixing frame (2) is fixedly mounted on the upper surface of the processing table (1); a screw rod (3) is rotatably mounted on the inner side of the fixing frame (2); a negative pressure fixing mechanism is arranged on the outer surface of the screw rod (3); an edge grinding mechanism is arranged on the upper surface of the fixing frame (2) and on a side close to the negative pressure fixing mechanism; and a support frame is fixedly mounted on the bottom of the processing table (1); The negative pressure fixing mechanism comprises two clamping plates (4), the inner sides of the two clamping plates (4) are respectively rotatably mounted with clamping rings (5), the inner sides of the clamping rings (5) are fixedly mounted with rubber pads (6), the inner sides of the clamping rings (5) are fixedly mounted with an annular conduit (7), the inner sides of the two annular conduits (7) are correspondingly fixedly mounted with a group of negative pressure hoses (8) tilted downward and a group of negative pressure hoses (8) tilted upward, one end of the negative pressure hoses (8) passes through the inner sides of the clamping rings (5) and the inner sides of the rubber pads (6) in sequence; An adjustable dust suction mechanism is provided on one of the clamping plates (4), the adjustable dust suction mechanism comprising a dust suction box (10) and two suction nozzles (9), the dust suction box (10) is fixedly mounted at the front end of one of the clamping plates (4), and the two suction nozzles (9) are movably arranged at the inner sides of two rubber pads (6).

2. A table tennis ball edging device according to claim 1, characterized in that: The edge grinding mechanism comprises a fixed seat (11), the fixed seat (11) is fixedly mounted on the upper surface of the fixed frame (2) near one end, a connecting plate is fixedly mounted on one side of the fixed seat (11), a telescopic cylinder (12) is fixedly mounted inside the fixed seat (11) near the upper end, the telescopic end of the telescopic cylinder (12) is fixedly connected to a sliding frame (13), the bottom end of the sliding frame (13) is slidably matched with a sliding groove provided on the upper surface of the connecting plate, and an edge scraping knife (15) is fixedly mounted on the upper end of the sliding frame (13).

3. A table tennis ball edging device according to claim 1, characterized in that: The negative pressure fixing mechanism further comprises two connecting frames (16), the two connecting frames (16) being fixedly mounted on the upper and lower sides of the two clamping rings (5), respectively; a connecting shaft (20) is fixedly mounted in the middle of the outer surface of the connecting frame (16); an air guide tube (21) is fixedly mounted inside the connecting shaft (20); a first hose (22) is fixedly connected to one side of the air guide tube (21) near the bottom end; the bottom end of the first hose (22) passes through one side of the connecting shaft (20) and the upper side of the clamping ring (5) to be fixedly connected to the upper side of the annular conduit (7).

4. A table tennis ball edge grinding device according to claim 3, characterized in that: The upper end of the air guide pipe (21) is fixedly connected to a rotating box (14), the upper end surface of one rotating box (14) is fixedly connected to the output shaft of a second motor (23), the outer surface of the second motor (23) is fixedly mounted on the upper surface of a clamping plate (4) via a mounting frame, the lower end surface of the other rotating box (14) is fixedly connected to a rotating shaft (24), the bottom end of the rotating shaft (24) is rotatably connected to the inside of another mounting frame, the other mounting frame is fixedly mounted on the lower surface of another clamping plate (4), a rotating cylinder (25) is rotatably mounted on the inner side of the rotating box (14), and a fixed tube (27) is fixedly connected to one side of the rotating cylinder (25).

5. A table tennis ball edge grinding device according to claim 4, characterized in that: One end of the two fixed tubes (27) passes through the interior of the two mounting frames and is respectively fixedly connected to one side and the bottom end of the telescopic tube (28); the upper end of the telescopic tube (28) passes through the upper end of the fixed frame (2) and is fixedly connected to one end of the support tube (29); the other end of the support tube (29) is fixedly connected to the air inlet of the vacuum pump (30); and the vacuum pump (30) is fixedly mounted at the upper end of the fixed frame (2).

6. A table tennis ball edge grinding device according to claim 5, characterized in that: One end of one of the clamping plates (4) is fixedly connected to one side of the fixing frame (2), one end of the other clamping plate (4) is slidably engaged with a slide groove provided on one side of the fixing frame (2), the interior of the other clamping plate (4) is threadedly engaged with the outer surface of the screw rod (3), and the upper end of the screw rod (3) passes through the upper end of the fixing frame (2) and is fixedly connected to the output shaft of the first motor (17).

7. A table tennis ball edge grinding device according to claim 6, characterized in that: One side of the first motor (17) is fixedly mounted on the upper end surface of the fixing frame (2) via a fixing member; the inner sides of the two clamping rings (5) clamp a ping-pong ball (18); a collecting box (19) is fixedly mounted on the fixing frame (2) and below the ping-pong ball (18); an assembly plate (26) is fixedly mounted on the upper surface of one of the clamping rings (5) and close to one side; an assembly seat (41) is fixedly mounted on the upper surface of the other clamping ring (5) at a corresponding position; the upper end of the assembly plate (26) is plug-fitted into a plug-in hole provided on the lower surface of the assembly seat (41).

8. The table tennis ball edge grinding device according to claim 1, characterized in that: The adjustable dust suction mechanism further comprises a connecting seat (31), the connecting seat (31) being fixedly mounted on the upper surface of a clamping plate (4) and close to one side, a driving shaft (32) being rotatably mounted on the inner side of the connecting seat (31), one end of the driving shaft (32) being fixedly connected to the output shaft of a third motor (33), the bottom side of the third motor (33) being fixedly mounted on one side of the connecting seat (31) via a fixing member, a rotating frame (34) being fixedly sleeved on the outer surface of the driving shaft (32), the bottom end and the upper end of the rotating frame (34) being fixedly connected to suction nozzles (9) respectively, and the upper and lower sides of the two suction nozzles (9) being fixedly connected to the upper and lower ends of the connecting pipe (35).

9. A table tennis ball edge grinding device according to claim 8, characterized in that: A second hose (36) is fixedly connected to one side of the connecting pipe (35); one end of the second hose (36) passes through the interior of the rotating frame (34) and is fixedly connected to an air guide box (37); the air guide box (37) is fixedly mounted on the lower surface of a clamping plate (4); a third hose (40) is fixedly connected to the front side of the air guide box (37); one end of the third hose (40) is fixedly connected to the bottom of the dust collection box (10); the bottom end of the air guide box (37) is fixedly connected to a fourth hose (38); and a control unit (39) is fixedly mounted on the left side of the fixed frame (2).

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