A polishing device for watch strap processing

Abstract

The present invention relates to the technical field of watchband grinding and processing, and discloses a grinding device for watchband processing, comprising a workbench and a support frame, wherein the support frame is arranged on the workbench and fixedly connected to the top of the workbench, and further comprising: a grinding device, which is arranged on the support frame, and is used to grind a workpiece to be processed, and the grinding device is fixedly connected to the support frame; a conveyor belt, which is arranged on the workbench, and is used to convey the workpiece to be polished to the bottom of the grinding device, and the conveyor belt is fixedly connected to the top of the workbench. The grinding device for watchband processing can cool down the grinding head and the workpiece, so as to avoid the situation that the grinding head wears faster due to excessively high temperature during the grinding process, and also avoid the situation that the workpiece is easily deformed due to high temperature, and also avoid the situation that the cold wind can only blow to the top of the annular grinding block, resulting in uneven heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of watch strap grinding processing, in particular to a grinding device for watch strap processing. Background Art

[0002] The hole grinding machine for strap production is a key equipment in the watch and accessories manufacturing industry. It can be used to accurately process the holes of watches, wristbands and other accessories. The hole grinding machine can grind and trim these holes to ensure their accurate size so that the buckle can be smoothly installed or other parts can be connected during subsequent assembly, ensuring the accuracy, quality and appearance of the strap.

[0003] During the grinding process of the existing grinding equipment, the temperature of the grinding head and the workpiece is relatively high, which can easily accelerate the wear of the grinding head and also easily cause the precision workpiece to soften and deform. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A watchband processing polishing device, comprising a workbench and a support frame, wherein the support frame is arranged on the workbench and fixedly connected to the top of the workbench, and further comprising:

[0005] A grinding mechanism, which is arranged on the support frame and is used to grind the workpiece to be processed, and the grinding mechanism is fixedly connected to the support frame;

[0006] A conveyor belt, which is arranged on the workbench and is used to convey the workpiece to be polished to the bottom of the polishing mechanism, and the conveyor belt is fixedly connected to the top of the workbench;

[0007] A positioning mold is arranged on the conveyor belt. The positioning mold is used to carry the workpiece to be polished and to limit the workpiece. The positioning mold is fixedly installed on the conveyor belt.

[0008] Preferably, the grinding mechanism includes a lifting push rod, the movable end of the lifting push rod is fixedly connected to a fixing seat, the fixing seat is provided with a mounting groove, the grinding head is fixedly installed inside the mounting groove by a combination of bolts and nuts, the bottom of the fixing seat is fixedly connected to an annular air duct, the inner side of the annular air duct is connected to an air outlet, and the side of the annular air duct away from the air outlet is connected to a cooling air fan through the air duct, which can cool the grinding head and the workpiece, thereby avoiding the situation where the grinding head wears faster due to excessive temperature during the grinding process, and also avoiding the situation where the workpiece is easily deformed due to high temperature.

[0009] Preferably, the top of the lifting push rod passes through the support frame and is fixedly connected to the support frame, and the side of the air cooler is fixedly connected to the fixing seat through a bracket.

[0010] Preferably, the air outlet nozzles are provided in multiple groups and are evenly distributed on the annular air duct, and the air outlets of the air outlet nozzles face the end of the grinding head.

[0011] Preferably, the grinding head includes a positioning plate, a small motor is fixedly connected to the center position of the bottom of the positioning plate, the output end of the small motor is fixedly connected to a rotating shaft, an annular grinding block is sleeved and fixedly connected to the rotating shaft, and a heat dissipation groove is provided on the side of the annular grinding block to avoid the situation where cold air can only blow to the top of the annular grinding block and cause uneven heat dissipation, thereby enabling the grinding head to obtain better heat dissipation effect.

[0012] Preferably, the positioning plate is arranged inside the mounting groove and fixed inside the mounting groove by a combination of bolts and nuts, and the heat dissipation grooves are arranged in multiple groups and are evenly distributed on the annular grinding block.

[0013] Preferably, the fixed seat includes a fixed base, a telescopic slide groove is provided on the top of the fixed base, a sliding block is slidably connected to the inner wall of the telescopic slide groove, an arc spring is fixedly connected to the bottom of the sliding block, one end of the arc spring away from the sliding block is fixedly connected to the bottom of the inner wall of the telescopic slide groove, and a control switch is fixedly connected to the center position of the bottom of the inner wall of the telescopic slide groove, so as to stop the grinding work when the grinding head is not aligned with the hole on the workpiece, avoid irreversible damage to the workpiece, and protect the workpiece.

[0014] Preferably, the mounting groove is provided at the bottom of the fixed base, the top of the sliding block is fixedly connected to the movable end of the lifting push rod, and the control switch is electrically connected to the lifting push rod.

[0015] Preferably, the positioning mold includes a mold base, a model groove is provided on the top of the mold base, a dust collecting cavity is provided inside the mold base, a through hole connected to the model groove is provided on the top of the dust collecting cavity, a filter port is provided on the side of the dust collecting cavity, and a filter net is fixedly connected to the inner wall of the filter port to facilitate the collection and treatment of dust and impurities generated by grinding, thereby preventing the dust and impurities from floating into the air and affecting the processing environment.

[0016] Preferably, the bottom of the mold base is fixedly connected to the conveyor belt, and the shape of the mold groove is adapted to the shape of the workpiece.

[0017] The present invention provides a polishing mechanism for watch strap processing, which has the following beneficial effects:

[0018] 1. The grinding device for processing watch straps, when in use, drives the positioning mold and the workpiece inside it to move to the bottom of the grinding mechanism through the conveyor belt, the lifting push rod drives the fixed seat to descend, the fixed seat drives the grinding head inside the mounting groove to descend, and the lifting push rod drives the grinding head to be inserted into the hole on the workpiece inside the positioning mold, and the inner wall of the hole on the workpiece can be ground by the grinding head. At the same time, during the grinding process, the cold air fan sends cold air into the annular air duct, and the cold air inside the annular air duct is discharged to the grinding head and the workpiece through the air outlet, so as to cool the grinding head and the workpiece, thereby avoiding the situation that the grinding head wears faster due to excessive temperature during the grinding process, and also avoiding the situation that the workpiece is easily deformed due to high temperature.

[0019] 2. The grinding device for processing the watch strap, when the grinding head moves downward driven by the lifting push rod, first the rotating shaft is inserted into the hole of the workpiece, and as the grinding head continues to descend, the annular grinding block is driven to enter the hole of the workpiece, and at this time the small motor drives the rotating shaft to rotate, and the rotating shaft drives the annular grinding block to rotate, so that the inner wall of the hole on the workpiece can be ground by the annular grinding block. At the same time, since the annular grinding block is provided with a heat dissipation groove, when cold air blows onto the annular grinding block, it can pass through the heat dissipation groove. On the one hand, the heat dissipation area of ​​the annular grinding block can be increased through the heat dissipation groove, and on the other hand, the cold air can be sent to the bottom of the annular grinding block to avoid the situation where the cold air can only blow to the top of the annular grinding block, resulting in uneven heat dissipation, thereby enabling the grinding head to obtain a better heat dissipation effect.

[0020] 3. For the grinding device for processing watch straps, when the grinding head is not aligned with the hole on the workpiece when it descends, the grinding head will be supported by the workpiece, thereby generating an upward extrusion force on the grinding head. The grinding head drives the fixed base to squeeze the arc spring. While the arc spring is compressed, the fixed base gradually approaches the sliding block. The sliding block squeezes the control switch, and the lifting push rod can be controlled to retract through the control switch, so that when the grinding head is not aligned with the hole on the workpiece, the grinding work can be stopped to avoid irreversible damage to the workpiece and protect the workpiece.

[0021] 4. For the polishing device for processing the watch strap, when the air cooler blows cold air into the workpiece inside the model slot, the cold air can enter the dust collecting cavity through the through hole inside the model slot. At the same time, in the process of the cold air entering the dust collecting cavity, the dust and impurities generated by polishing inside the model slot can enter the dust collecting cavity under the action of the airflow, and pass through the filter to be discharged to the outside of the mold base, so as to facilitate the collection and treatment of the dust and impurities generated by polishing, and prevent the dust and impurities from floating into the air and affecting the processing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the polishing device for processing the watch strap of the present invention;

[0023] Figure 2This is a schematic diagram of the installation structure of the grinding mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the top structure of the fixing seat of the present invention;

[0025] Figure 4 This is a schematic diagram of the bottom structure of the fixing base of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the fixing seat of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the grinding head of the present invention;

[0028] Figure 7 This is a schematic diagram of the positioning mold structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the cross-sectional structure of the positioning mold of the present invention.

[0030] In the figure: 1. workbench; 2. support frame; 3. grinding mechanism; 31. lifting push rod; 32. fixed seat; 321. fixed base; 322. telescopic slide; 323. sliding block; 324. arc spring; 325. control switch; 33. mounting slot; 34. grinding head; 341. positioning plate; 342. rotating shaft; 343. annular grinding block; 344. heat dissipation slot; 346. small motor; 35. annular air duct; 36. air outlet; 37. air cooler; 4. conveyor belt; 5. positioning mold; 51. mold base; 52. model slot; 53. dust collection cavity; 54. filter port; 55. filter net. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 6 The present invention provides a technical solution to solve the problem that the temperature of the grinding head and the workpiece during the grinding process of the existing grinding equipment is high, which is easy to accelerate the wear of the grinding head and also easy to soften and deform the precision workpiece: a grinding device for strap processing, including a workbench 1 and a support frame 2, the support frame 2 is arranged on the workbench 1 and fixedly connected to the top of the workbench 1, and also includes:

[0033] A grinding mechanism 3, which is arranged on the support frame 2, and is used to grind the workpiece to be processed, and the grinding mechanism 3 is fixedly connected to the support frame 2;

[0034] A conveyor belt 4 is arranged on the workbench 1 and is used to convey the workpiece to be polished to the bottom of the polishing mechanism 3. The conveyor belt 4 is fixedly connected to the top of the workbench 1;

[0035] The positioning mold 5 is arranged on the conveyor belt 4 . The positioning mold 5 is used to carry the workpiece to be polished and to limit the workpiece. The positioning mold 5 is fixedly installed on the conveyor belt 4 .

[0036] The grinding mechanism 3 includes a lifting push rod 31, the movable end of the lifting push rod 31 is fixedly connected to a fixing seat 32, the fixing seat 32 is provided with a mounting groove 33, a grinding head 34 is fixedly installed inside the mounting groove 33 by a combination of bolts and nuts, an annular air duct 35 is fixedly connected to the bottom of the fixing seat 32, the inner side of the annular air duct 35 is connected to an air outlet 36, and the side of the annular air duct 35 away from the air outlet 36 is connected to a cooling fan 37 through an air duct.

[0037] The top of the lifting push rod 31 passes through the support frame 2 and is fixedly connected to the support frame 2. The side of the cooling fan 37 is fixedly connected to the fixing seat 32 through a bracket. The air outlet nozzles 36 are provided in multiple groups and are evenly distributed on the annular air duct 35. The air outlets of the air outlet nozzles 36 face the end of the grinding head 34.

[0038] When in use, the conveyor belt 4 drives the positioning mold 5 and the workpiece inside to move to the bottom of the grinding mechanism 3, the lifting push rod 31 drives the fixed seat 32 to descend, and the fixed seat 32 drives the grinding head 34 inside the mounting groove 33 to descend, and the lifting push rod 31 drives the grinding head 34 to be inserted into the hole on the workpiece inside the positioning mold 5, so that the inner wall of the hole on the workpiece can be ground by the grinding head 34, and at the same time, during the grinding process, the cold air fan 37 sends cold air into the annular air duct 35, and the cold air inside the annular air duct 35 is discharged to the grinding head 34 and the workpiece through the air outlet 36, so that the grinding head 34 and the workpiece can be cooled down, so as to avoid the situation that the grinding head 34 wears out quickly due to excessive temperature during the grinding process, and at the same time, it can also avoid the situation that the workpiece is easily deformed due to high temperature;

[0039] The grinding head 34 includes a positioning plate 341, a small motor 346 is fixedly connected to the center of the bottom of the positioning plate 341, a rotating shaft 342 is fixedly connected to the output end of the small motor 346, an annular grinding block 343 is sleeved and fixedly connected to the rotating shaft 342, a heat dissipation groove 344 is opened on the side of the annular grinding block 343, the positioning plate 341 is arranged inside the mounting groove 33 and fixed inside the mounting groove 33 by a combination of bolts and nuts, and a plurality of heat dissipation grooves 344 are arranged and evenly distributed on the annular grinding block 343;

[0040] When the grinding head 34 moves downward under the drive of the lifting push rod 31, the rotating shaft 342 is first inserted into the hole of the workpiece. As the grinding head 34 continues to descend, the annular grinding block 343 is driven to enter the hole of the workpiece. At this time, the small motor 346 drives the rotating shaft 342 to rotate, and the rotating shaft 342 drives the annular grinding block 343 to rotate, so that the inner wall of the hole on the workpiece can be polished by the annular grinding block 343. At the same time, since the annular grinding block 343 is provided with a heat dissipation groove 344, when cold air blows onto the annular grinding block 343, it can pass through the heat dissipation groove 344. On the one hand, the heat dissipation area of ​​the annular grinding block 343 can be increased through the heat dissipation groove 344, and on the other hand, the cold air can be sent to the bottom of the annular grinding block 343 to avoid the situation where the cold air can only blow to the top of the annular grinding block 343, resulting in uneven heat dissipation, thereby enabling the grinding head 34 to obtain a better heat dissipation effect.

[0041] The fixed seat 32 includes a fixed base 321, a telescopic slide groove 322 is provided at the top of the fixed base 321, a sliding block 323 is slidably connected to the inner wall of the telescopic slide groove 322, an arc spring 324 is fixedly connected to the bottom of the sliding block 323, one end of the arc spring 324 away from the sliding block 323 is fixedly connected to the bottom of the inner wall of the telescopic slide groove 322, a control switch 325 is fixedly connected to the center of the bottom of the inner wall of the telescopic slide groove 322, the mounting groove 33 is provided at the bottom of the fixed base 321, the top of the sliding block 323 is fixedly connected to the movable end of the lifting push rod 31, and the control switch 325 is electrically connected to the lifting push rod 31;

[0042] When the grinding head 34 is not aligned with the hole on the workpiece when it descends, the grinding head 34 will be supported by the workpiece, thereby generating an upward squeezing force on the grinding head 34. The grinding head 34 drives the fixed base 321 to squeeze the arc spring 324. While the arc spring 324 is compressed, the fixed base 321 gradually approaches the sliding block 323, and the sliding block 323 is squeezed to the control switch 325. The lifting push rod 31 can be controlled to retract through the control switch 325, so that when the grinding head 34 is not aligned with the hole on the workpiece, the grinding work can be stopped to avoid irreversible damage to the workpiece and protect the workpiece.

[0043] See also Figure 1-Figure 8 The present invention provides a technical solution to solve the problem that dust and impurities generated during the grinding process are easily dispersed into the surrounding environment and affect the processing environment: the positioning mold 5 includes a mold base 51, a mold groove 52 is provided on the top of the mold base 51, a dust collecting cavity 53 is provided inside the mold base 51, a through hole connected to the mold groove 52 is provided on the top of the dust collecting cavity 53, a filter port 54 is provided on the side of the dust collecting cavity 53, a filter screen 55 is fixedly connected to the inner wall of the filter port 54, the bottom of the mold base 51 is fixedly connected to the conveyor belt 4, and the shape of the mold groove 52 is adapted to the shape of the workpiece;

[0044] A positioning mold 5 is provided. When the air cooler 37 blows cold air into the workpiece inside the model groove 52, the cold air can enter the dust collecting cavity 53 through the through hole inside the model groove 52. At the same time, in the process of the cold air entering the dust collecting cavity 53, the dust and impurities generated by grinding inside the model groove 52 can enter the dust collecting cavity 53 under the action of the airflow, and be discharged to the outside of the mold base 51 through the filter 55, so as to facilitate the collection and treatment of the dust and impurities generated by grinding, and prevent the dust and impurities from floating into the air and affecting the processing environment.

[0045] Working principle: When in use, the conveyor belt 4 drives the positioning mold 5 and the workpiece inside to move to the bottom of the grinding mechanism 3, the lifting push rod 31 drives the fixed seat 32 to descend, and the fixed seat 32 drives the grinding head 34 inside the installation groove 33 to descend. When the grinding head 34 moves downward driven by the lifting push rod 31, the rotating shaft 342 is first inserted into the hole of the workpiece. As the grinding head 34 continues to descend, the annular grinding block 343 is driven to enter the hole of the workpiece. At this time, the small motor 346 drives the rotating shaft 342 to rotate, and the rotating shaft 342 drives the annular grinding block 343 to rotate. 43 is rotated, the inner wall of the hole on the workpiece can be polished by the annular polishing block 343, and the polishing head 34 is driven by the lifting push rod 31 to insert into the hole on the workpiece inside the positioning mold 5, so that the inner wall of the hole on the workpiece can be polished by the polishing head 34. At the same time, during the polishing process, the cold air fan 37 sends cold air into the annular air duct 35, and the cold air in the annular air duct 35 is discharged to the polishing head 34 and the workpiece through the air outlet 36, so that the polishing head 34 and the workpiece can be cooled. At the same time, since the heat dissipation groove 344 is opened on the annular polishing block 343, when When the cold air blows onto the annular grinding block 343, it can pass through the heat dissipation groove 344. On the one hand, the heat dissipation area of ​​the annular grinding block 343 can be increased through the heat dissipation groove 344, and on the other hand, the cold air can be sent to the bottom of the annular grinding block 343. When the air cooler 37 blows the cold air onto the workpiece inside the model groove 52, the cold air can enter the dust collecting cavity 53 through the through hole inside the model groove 52. At the same time, when the cold air enters the dust collecting cavity 53, the dust and impurities generated by grinding inside the model groove 52 can enter the dust collecting cavity 53 under the action of the airflow. And it passes through the filter 55 and is discharged to the outside of the mold base 51, so as to facilitate the collection and treatment of dust and impurities generated by grinding. When the grinding head 34 is not aligned with the hole on the workpiece when it descends, the grinding head 34 will be supported by the workpiece, thereby generating an upward extrusion force on the grinding head 34. The grinding head 34 drives the fixed base 321 to squeeze the arc spring 324. While the arc spring 324 is compressed, the fixed base 321 gradually approaches the sliding block 323, and the sliding block 323 is squeezed to the control switch 325, so that the lifting push rod 31 can be controlled to retract through the control switch 325.

[0046] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A watch strap polishing device, comprising a workbench (1) and a support frame (2), wherein the support frame (2) is arranged on the workbench (1) and is fixedly connected to the top of the workbench (1), characterized in that: Also includes: A grinding mechanism (3), the grinding mechanism (3) being arranged on the support frame (2), the grinding mechanism (3) being used to grind a workpiece to be processed, the grinding mechanism (3) being fixedly connected to the support frame (2); A conveyor belt (4), the conveyor belt (4) being arranged on the workbench (1), the conveyor belt (4) being used to convey the workpiece to be polished to the bottom of the polishing mechanism (3), the conveyor belt (4) being fixedly connected to the top of the workbench (1); A positioning mold (5), the positioning mold (5) being arranged on the conveyor belt (4), the positioning mold (5) being used to carry a workpiece to be polished and to limit the position of the workpiece, the positioning mold (5) being fixedly mounted on the conveyor belt (4); The grinding mechanism (3) comprises a lifting push rod (31), the movable end of the lifting push rod (31) is fixedly connected to a fixing seat (32), the fixing seat (32) is provided with a mounting groove (33), a grinding head (34) is fixedly installed inside the mounting groove (33) by means of a combination of bolts and nuts, an annular air duct (35) is fixedly connected to the bottom of the fixing seat (32), an inner side surface of the annular air duct (35) is connected to an air outlet (36), and a side of the annular air duct (35) away from the air outlet (36) is connected to a cooling fan (37) via an air duct; The grinding head (34) comprises a positioning plate (341), a small motor (346) is fixedly connected to the center of the bottom of the positioning plate (341), an output end of the small motor (346) is fixedly connected to a rotating shaft (342), an annular grinding block (343) is sleeved and fixedly connected to the rotating shaft (342), and a heat dissipation groove (344) is provided on the side of the annular grinding block (343); The positioning plate (341) is arranged inside the mounting groove (33) and is fixed inside the mounting groove (33) by a combination of bolts and nuts; a plurality of heat dissipation grooves (344) are arranged and evenly distributed on the annular grinding block (343); The fixed seat (32) comprises a fixed base (321), a telescopic slide groove (322) is provided on the top of the fixed base (321), a sliding block (323) is slidably connected to the inner wall of the telescopic slide groove (322), an arc spring (324) is fixedly connected to the bottom of the sliding block (323), one end of the arc spring (324) away from the sliding block (323) is fixedly connected to the bottom of the inner wall of the telescopic slide groove (322), and a control switch (325) is fixedly connected to the center of the bottom of the inner wall of the telescopic slide groove (322); The mounting groove (33) is provided at the bottom of the fixed base (321), the top of the sliding block (323) is fixedly connected to the movable end of the lifting push rod (31), and the control switch (325) is electrically connected to the lifting push rod (31).

2. A watchband polishing device according to claim 1, characterized in that: The top of the lifting push rod (31) passes through the support frame (2) and is fixedly connected to the support frame (2), and the side of the cooling air fan (37) is fixedly connected to the fixing seat (32) via a bracket.

3. A watchband polishing device according to claim 1, characterized in that: The air outlet nozzles (36) are provided in multiple groups and are evenly distributed on the annular air duct (35), and the air outlets of the air outlet nozzles (36) face the end of the grinding head (34).

4. A watchband polishing device according to claim 1, characterized in that: The positioning mold (5) comprises a mold base (51), a mold groove (52) is provided on the top of the mold base (51), a dust collecting cavity (53) is provided inside the mold base (51), a through hole communicating with the mold groove (52) is provided on the top of the dust collecting cavity (53), a filter port (54) is provided on the side of the dust collecting cavity (53), and a filter screen (55) is fixedly connected to the inner wall of the filter port (54).

5. A watchband polishing device according to claim 4, characterized in that: The bottom of the mold base (51) is fixedly connected to the conveyor belt (4), and the shape of the mold groove (52) is adapted to the shape of the workpiece.

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