A grinding and polishing device and a polishing process for jewelry processing

Abstract

The invention relates to the technical field of polishing equipment, and discloses a grinding and polishing equipment and a polishing process for jewelry processing, comprising a shell, a polishing roller, a support shaft and a rolling wheel, wherein the support shaft is movably arranged above the shell, the rolling wheel is fixedly installed on the support shaft, the polishing roller is mounted between the rolling wheels, and the shell is provided with an interval adjustment mechanism; the grinding and polishing equipment, by arranging the support shaft, a rotating plate and a guide rod, can control the change in the spacing between the two rolling wheels, so that the polishing rollers with different diameters can be stably mounted between the two rolling wheels, and in conjunction with the arrangement of the driving shaft, it is convenient to drive the polishing rollers with different diameters to roll, so as to grind and polish jewelry of different sizes, and at the same time, by arranging an anti-drop mechanism, under the push of a telescopic spring, the clamping wheel clamps the polishing roller at the same time, and in conjunction with the rolling wheel, a four-point clamping effect can be achieved, so that the polishing roller is difficult to fall during rotation.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, in particular to a grinding and polishing equipment and a polishing process for jewelry processing. Background Art

[0002] In a broad sense, jewelry refers to jewelry, handicrafts or other collections made of gold, silver and natural materials (minerals, rocks and organisms, etc.) with a certain value. In the processing of jewelry products, after the products are manufactured through cutting, casting, forging or weaving, the surface of the jewelry needs to be ground and polished to remove the burrs or sticky oil stains of the jewelry to make the jewelry more shiny.

[0003] Chinese patent CN220051333U discloses a jewelry polishing machine, which installs a slip ring on the surface of a polishing cylinder and uses the slip ring to plug and fix with a moving rod slidably installed inside the polishing equipment housing, so that the cylinder will not fall off when rolling.

[0004] In the drum polishing machine equipment, the drum is a replaceable accessory. Usually, it is necessary to replace the drums of different diameters according to the volume of the jewelry to be ground and polished. For example, when polishing small jewelry, such as earrings, thin necklaces, etc., it is more appropriate to use a smaller diameter drum (such as a diameter of 30-50 cm). When the smaller diameter drum rotates, the movement distance of the jewelry and the abrasive is relatively short, and the frequency of collision and friction will be higher. For large jewelry, such as larger pendants, bracelets, etc., a larger diameter drum (such as a diameter of 60-100 cm) would be a better choice. The large diameter drum has a large internal space and can accommodate large jewelry, and can To ensure that the jewelry has enough space to move in the drum so that all parts of it can be polished evenly; if a large bracelet is placed in a small drum, some parts of the bracelet may not be able to fully contact the abrasive due to the narrow space, resulting in uneven polishing; in order to effectively drive the drum to rotate, the diameter of the drum should be slightly larger than the spacing between the two rollers that drive the drum to rotate. In the above-mentioned jewelry polishing machine, since the spacing of the rollers that drive the drum to rotate cannot be changed, when the above-mentioned jewelry polishing machine is used to drive drums of different diameters, when the difference between the drum diameter and the spacing between the two rollers is large, it is not convenient to drive the drum to rotate. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a grinding and polishing device and a polishing process for jewelry processing, which has the advantages of driving polishing rollers of different diameters to roll and preventing the rollers from falling off, thereby solving the problems mentioned in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A grinding and polishing device, comprising a housing, a polishing drum, a support shaft and a rolling wheel, wherein the support shaft is movably arranged above the housing, the rolling wheel is fixedly installed on the support shaft, the polishing drum is mounted between the rolling wheels, an interval adjustment mechanism is arranged on the housing, the interval adjustment mechanism comprises a rotating plate and a guide rod, the lower end of the rotating plate is rotatably installed on the outer side wall of the housing, the support shaft is rotatably connected to the rotating plate, the guide rod is slidably installed on the outside of the housing along the vertical direction, and the two ends of the guide rod are connected to the rotating plate, and are used to move and pull the rotating plates on both sides to rotate relative to each other;

[0008] The housing is also provided with an anti-drop mechanism, which includes a clamping wheel and a telescopic spring. The clamping wheel is arranged above the rolling wheel, and one end of the telescopic spring is connected to the rotating plate to push the clamping wheel to squeeze the side edge of the polishing drum.

[0009] A driving shaft is rotatably installed between the two ends of the shell, and the driving shaft is used to drive the support shaft to rotate. A driving motor is fixedly installed inside the shell, and the driving end of the driving motor is connected to the driving shaft through a transmission pulley.

[0010] Preferably, connecting shafts are provided on both sides of the driving shaft, both ends of the connecting shafts pass through the two side walls of the shell and are rotatably connected to the shell, and the two connecting shafts are vertically symmetrical relative to the driving shaft, the lower end of the rotating plate is rotatably connected to the end of the connecting shaft, a driving gear is fixedly installed on the driving shaft, and a transmission gear is fixedly installed on the connecting shaft, the driving gear and the transmission gear are meshingly connected, and the connecting shaft and the support shaft are connected through a transmission pulley.

[0011] Preferably, the interval adjustment mechanism also includes a guide rail, a lifting slider and a rotating block, the bottom of the guide rail is fixedly connected to the outer wall of one side of the shell, a sliding hole is opened in the middle of the guide rail, the lifting slider is slidably installed inside the sliding hole, the rotating block is rotatably installed on the rotating plate, the guide rod passes through the lifting slider and is fixedly connected to the lifting slider, and the end of the guide rod passes through the rotating block and is slidably connected to the rotating block.

[0012] Preferably, a screw and a control rod are provided on one side of the guide rail, the screw is rotatably mounted on the side of the guide rail, a threaded through hole threadedly connected to the screw is opened on the lifting slider, two ends of the control rod pass through the two side walls of the shell and are rotatably connected to the shell, and driving bevel gears are fixedly mounted on both sides of the control rod, a driven bevel gear is fixedly mounted on the lower end of the screw, the driven bevel gear and the driving bevel gear are meshingly connected, and a knob is fixedly mounted on the end of the control rod.

[0013] Preferably, a locking mechanism is provided on the side of the shell, and the locking mechanism includes a chuck, a block, a fixed plate, a pull rod and a return spring. The chuck is fixedly mounted on the control rod, one side of the block is engaged with the chuck, the fixed plate is fixedly mounted on one side of the shell, the pull rod is slidably mounted on the fixed plate, and one end of the pull rod is fixedly connected to the block, and both ends of the return spring are fixedly connected to the block and the fixed plate, respectively.

[0014] Preferably, the anti-drop mechanism also includes a support plate and a fixed shaft, the support plate is rotatably mounted on the upper end of the rotating plate, the fixed shaft is mounted on the upper end of the support plate, the clamping wheel is rotatably mounted on the fixed shaft, and the other end of the telescopic spring is connected to the support plate.

[0015] Preferably, the support plate includes a sleeve plate and a slide plate, the slide plate is slidably plugged into the upper end of the sleeve plate, the middle part of one side surface of the sleeve plate is rotatably connected to the upper end of the rotating plate, the upper end of the slide plate is fixedly connected to a fixed shaft, one side surface of the sleeve plate is threadedly connected with a bolt, the end of the bolt passes through a side wall of the sleeve plate and abuts against one side surface of the slide plate.

[0016] Preferably, a lower connecting rod is fixedly installed on one side of the rotating plate, a side extension plate is fixedly installed on the upper end of one side of the sleeve plate, an upper connecting rod is fixedly installed on one end of the side extension plate, both ends of the telescopic spring are respectively hung and installed with the lower connecting rod and the upper connecting rod, a notch is opened on the side of the rotating plate, an extension plate is fixedly installed on the lower end of the other side of the sleeve plate, an insertion rod is fixedly installed on one end of the extension plate, and the insertion rod is adapted to be plugged into the notch.

[0017] Preferably, a vibration base is installed at the bottom of the shell, and the vibration base includes a bottom plate and a vibration motor. A buffer pad is fixedly installed on the lower surface of the bottom plate, and a buffer spring is fixedly installed on the upper surface of the bottom plate. The upper end of the buffer spring is fixedly connected to the lower surface of the shell, and the vibration motor is fixedly installed on the lower surface of the shell.

[0018] The present invention also discloses a polishing process for jewelry processing, which specifically comprises the following steps:

[0019] Place the jewelry and abrasive to be polished into the polishing drum, and make sure the cover of the polishing drum is locked;

[0020] The polishing drum is placed between the rolling wheels through the clamping wheels on both sides, and the spacing between the rolling wheels on both sides is adjusted by the spacing adjustment mechanism, so that the polishing drum can stably roll between the rolling wheels;

[0021] The rolling wheel is driven by a driving motor to rotate, so that the polishing drum is driven to rotate;

[0022] After polishing is completed, remove the polishing drum and pour out the jewels and abrasives inside.

[0023] Compared with the prior art, the present invention provides a grinding and polishing device and a polishing process for jewelry processing, which has the following beneficial effects:

[0024] 1. The grinding and polishing equipment can control the change in the spacing between the two rolling wheels by setting a supporting shaft, a rotating plate and a guide rod, so that polishing rollers with different diameters can be stably mounted between the two rolling wheels. With the setting of the driving shaft, it is convenient to drive the polishing rollers with different diameters to roll, so as to grind and polish jewelry of different sizes. At the same time, by setting an anti-drop mechanism, the clamping wheel clamps the polishing roller at the same time under the push of the telescopic spring, and cooperates with the rolling wheel to achieve a four-point clamping effect, so that the polishing roller is difficult to fall during rotation, thereby ensuring the safety of the grinding and polishing equipment during operation.

[0025] 2. The grinding and polishing equipment is provided with a guide rail, a lifting slider, a rotating block, a screw and a control rod. The control rod controls the rotation of the screw to control the height of the lifting slider, thereby adjusting the height of the guide rod, so that the height of the position where the rotating block is installed on the rotating plate is controlled. Under the condition that the lower end of the rotating plate can only rotate, the two rotating plates can be controlled to rotate synchronously in opposite directions, so as to facilitate the adjustment of the spacing between the rolling wheels, so that the spacing between the rolling wheels can be changed according to the diameter of the polishing roller used. In addition, in conjunction with the setting of the locking mechanism, the rotation of the control rod can be limited to prevent the polishing roller from pressing on the rolling wheel and pushing the rotating plate to rotate, thereby increasing the spacing between the rolling wheels and making it difficult to effectively drive the polishing roller to rotate.

[0026] 3. The grinding and polishing equipment is provided with a support plate, a fixed shaft, a lower connecting rod, a side extension plate, an upper connecting rod, a notch, an extension plate and an insertion rod. When the connecting line of the lower connecting rod and the upper connecting rod is parallel to the length direction of the rotating plate, the length of the telescopic spring is stretched to the maximum. Therefore, when the insertion rod is inserted into the notch and abuts against one end of the notch, the stretching length of the telescopic spring is shortened. Under the tension of the telescopic spring, the support plate can maintain a state in which the lower end is close to the center of the shell. When the polishing roller is placed inside the equipment, the bottom of the polishing roller must first squeeze the lower end of the support plate so that the support plate rotates to contact the rolling wheel. Under the pressure of the polishing roller, the support plate rotates to pull the telescopic spring to stretch to the maximum and gradually shorten, so that the clamping wheel can clamp the side of the polishing roller, making the operation of placing the polishing roller inside the equipment simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is one of the three-dimensional structural schematic diagrams of the grinding and polishing equipment of the present invention;

[0028] Figure 2 The second schematic diagram of the three-dimensional structure of the grinding and polishing equipment of the present invention;

[0029] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged local structure at point A in the middle;

[0030] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the local structure at B in the middle;

[0031] Figure 5 It is a three-dimensional structural cross-sectional view of the grinding and polishing equipment of the present invention;

[0032] Figure 6 This is one of the front structural schematic diagrams of the grinding and polishing equipment of the present invention;

[0033] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the local structure at C in the middle;

[0034] Figure 8 This is the second schematic diagram of the front view structure of the grinding and polishing equipment of the present invention.

[0035] In the figure:

[0036] 1. Shell;

[0037] 2. Polishing drum;

[0038] 3. Support shaft; 31. Rolling wheel;

[0039] 4. driving shaft; 41. driving motor; 42. driving gear;

[0040] 5. Interval adjustment mechanism; 51. Turntable; 52. Guide rod; 53. Guide rail; 531. Slide hole; 54. Lifting slide block; 55. Turn block; 56. Screw rod; 561. Driven bevel gear; 57. Control rod; 571. Active bevel gear; 58. Lower connecting rod; 59. Notch;

[0041] 6. Locking mechanism; 61. Chuck; 62. Block; 63. Fixing plate; 64. Pull rod; 65. Return spring;

[0042] 7. Anti-drop mechanism; 71. Clamping wheel; 72. Telescopic spring; 73. Support plate; 731. Sleeve plate; 732. Slide plate; 733. Bolt; 74. Fixed shaft; 75. Side extension plate; 76. Upper connecting rod; 77. Extension plate; 78. Insert rod;

[0043] 8. Connecting shaft; 81. Transmission gear;

[0044] 9. Vibration base; 91. Bottom plate; 92. Vibration motor; 93. Buffer pad; 94. Buffer spring. DETAILED DESCRIPTION

[0045] 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.

[0046] Embodiment 1

[0047] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 The present invention provides a grinding and polishing device, comprising a housing 1, a polishing drum 2, a support shaft 3 and a rolling wheel 31, wherein the support shaft 3 is movably arranged above the housing 1, the rolling wheel 31 is fixedly installed on the support shaft 3, the polishing drum 2 is mounted between the rolling wheels 31, and an interval adjustment mechanism 5 is arranged on the housing 1, the interval adjustment mechanism 5 comprises a rotating plate 51 and a guide rod 52, the lower end of the rotating plate 51 is rotatably installed on the outer side wall of the housing 1, the support shaft 3 is rotatably connected with the rotating plate 51, the guide rod 52 is slidably installed on the outside of the housing 1 along the vertical direction, and the two ends of the guide rod 52 are connected with the rotating plate 51, and are used to move and pull the rotating plates 51 on both sides to rotate relative to each other;

[0048] The housing 1 is also provided with an anti-drop mechanism 7, which includes a clamping wheel 71 and a telescopic spring 72. The clamping wheel 71 is arranged above the rolling wheel 31, and one end of the telescopic spring 72 is connected to the rotating plate 51, so as to push the clamping wheel 71 to squeeze the side edge of the polishing drum 2.

[0049] A driving shaft 4 is rotatably installed between the two ends of the shell 1, and the driving shaft 4 is used to drive the support shaft 3 to rotate. A driving motor 41 is fixedly installed inside the shell 1, and the driving end of the driving motor 41 is connected to the driving shaft 4 through a transmission pulley.

[0050] As can be seen from the above, the grinding and polishing equipment, by setting the support shaft 3, the rotating plate 51 and the guide rod 52, can control the position of the rolling wheel 31 installed on the rotating plate 51 by moving the guide rod 52 up and down, thereby controlling the distance between the relative rolling wheels 31, so that the polishing rollers 2 with different diameters can be stably mounted between the two rolling wheels 31, and in conjunction with the setting of the driving shaft 4, the driving motor 41 drives the rolling wheel 31 to rotate when working, so as to facilitate driving the polishing rollers 2 with different diameters to roll, so as to facilitate grinding and polishing of jewelry of different sizes. At the same time, by setting the anti-drop mechanism 7, under the push of the telescopic spring 72, the clamping wheel 71 clamps the polishing roller 2 at the same time, and cooperates with the two rolling wheels 31 to achieve a four-point clamping effect, so that the polishing roller 2 is difficult to fall during rotation, thereby ensuring the safety of the grinding and polishing equipment during operation;

[0051] When using the grinding and polishing equipment, the jewelry and abrasive to be polished are placed in the polishing drum 2, and the drum cover of the polishing drum 2 is locked; the polishing drum 2 is placed between the rolling wheels 31 through the clamping wheels 71 on both sides, and the spacing between the rolling wheels 31 on both sides is adjusted by the spacing adjustment mechanism 5, so that the polishing drum 2 can stably roll between the rolling wheels 31; the rolling wheels 31 are driven to rotate by the driving motor 41, so that the polishing drum 2 is driven to rotate; after polishing is completed, the polishing drum 2 is taken out and the jewelry and abrasive inside are poured out.

[0052] Embodiment 2

[0053] like Figure 2 and Figure 5 As shown, the difference between this embodiment and the above embodiment is that connecting shafts 8 are provided on both sides of the driving shaft 4, both ends of the connecting shafts 8 pass through the two side walls of the shell 1 and are rotatably connected to the shell 1, and the two connecting shafts 8 are vertically symmetrical relative to the driving shaft 4, the lower end of the rotating plate 51 is rotatably connected to the end of the connecting shaft 8, a driving gear 42 is fixedly installed on the driving shaft 4, and a transmission gear 81 is fixedly installed on the connecting shaft 8, the driving gear 42 and the transmission gear 81 are meshingly connected, and the connecting shaft 8 and the support shaft 3 are connected through a transmission pulley.

[0054] From the above, it can be seen that by setting the connecting shaft 8, the distance between the connecting shaft 8 and the driving shaft 4 remains unchanged, and when the rotating plate 51 rotates, the distance between the connecting shaft 8 and the supporting shaft 3 will not change. Therefore, by driving the driving gear 42, the transmission gear 81 and the transmission pulley, the supporting shaft 3 can be controlled by the driving shaft 4.

[0055] A vibration base 9 is installed at the bottom of the shell 1, and the vibration base 9 includes a bottom plate 91 and a vibration motor 92. A buffer pad 93 is fixedly installed on the lower surface of the bottom plate 91, and a buffer spring 94 is fixedly installed on the upper surface of the bottom plate 91. The upper end of the buffer spring 94 is fixedly connected to the lower surface of the shell 1, and the vibration motor 92 is fixedly installed on the lower surface of the shell 1.

[0056] As can be seen from the above, when the vibration motor 92 is working, it drives the housing 1 to rotate, so that the rolling wheel 31 and the clamping wheel 71 vibrate, which can drive the polishing drum 2 to vibrate; under normal circumstances, the polishing of the polishing drum 2 mainly relies on the rotation of the drum to make the abrasive and the workpiece rub against each other. However, during the rotation process, the abrasive may agglomerate, especially some fine abrasive particles. When the vibration structure is added, the vibration will cause the abrasive to be continuously broken up, and its fluidity will be enhanced. This enhanced fluidity can also make it easier for the abrasive to enter the gaps and complex-shaped parts of the workpiece.

[0057] Embodiment 3

[0058] like Figure 1 and Figure 3 As shown, the difference between this embodiment and the above embodiment is that the interval adjustment mechanism 5 also includes a guide rail 53, a lifting slider 54 and a rotating block 55. The bottom of the guide rail 53 is fixedly connected to the outer wall of one side of the shell 1. A sliding hole 531 is opened in the middle of the guide rail 53. The lifting slider 54 is slidably installed in the sliding hole 531. The rotating block 55 is rotatably installed on the rotating plate 51. The guide rod 52 passes through the lifting slider 54 and is fixedly connected to the lifting slider 54, and the end of the guide rod 52 passes through the rotating block 55 and is slidably connected to the rotating block 55.

[0059] As can be seen from the above, when the lifting slider 54 slides in the sliding hole 531 opened on the guide rail 53, the height of the guide rod 52 changes, driving the height of the rotating block 55 slidably connected to the guide rod 52 to change. Since the rotating block 55 is rotatably connected to the rotating plate 51, and the lower end of the rotating plate 51 is rotatably installed on the connecting shaft 8, the rotating plate 51 can rotate accordingly, thereby driving the support shaft 3 to move, and the relative spacing of the rolling wheels 31 changes accordingly.

[0060] A screw rod 56 and a control rod 57 are provided on one side of the guide rail 53. The screw rod 56 is rotatably installed on one side of the guide rail 53. A threaded through hole threadedly connected to the screw rod 56 is opened on the lifting slider 54. Both ends of the control rod 57 penetrate the two side walls of the shell 1 and are rotatably connected to the shell 1. A driving bevel gear 571 is fixedly installed on both sides of the control rod 57. A driven bevel gear 561 is fixedly installed on the lower end of the screw rod 56. The driven bevel gear 561 and the driving bevel gear 571 are meshed and connected. A knob is fixedly installed on the end of the control rod 57.

[0061] As can be seen from the above, by setting the screw 56 and the control rod 57, due to the meshing connection between the driven bevel gear 561 and the active bevel gear 571, rotating the control rod 57 can control the rotation of the screw 56, thereby driving the lifting slider 54 threadedly connected to the screw 56 and slidably installed on the guide rail 53 to move up and down. Therefore, the spacing between the relative rolling wheels 31 can be controlled by rotating the control rod 57.

[0062] A locking mechanism 6 is provided on the side of the shell 1, and the locking mechanism 6 includes a chuck 61, a block 62, a fixing plate 63, a pull rod 64 and a return spring 65. The chuck 61 is fixedly mounted on the control rod 57, one side of the block 62 is engaged with the chuck 61, the fixing plate 63 is fixedly mounted on one side of the shell 1, the pull rod 64 is slidably mounted on the fixing plate 63, and one end of the pull rod 64 is fixedly connected to the block 62, and both ends of the return spring 65 are fixedly connected to the block 62 and the fixing plate 63 respectively.

[0063] As can be seen from the above, when the reset spring 65 is extended, the chuck 61 and the block 62 are in close contact to achieve a clamping and limiting effect, so that the control rod 57 cannot rotate; when the pull rod 64 is pulled to make the reset spring 65 contract, the chuck 61 and the block 62 are separated, and the control rod 57 can be rotated.

[0064] Embodiment 4

[0065] like Figure 1 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the difference between this embodiment and the above embodiment is that the anti-drop mechanism 7 also includes a support plate 73 and a fixed shaft 74, the support plate 73 is rotatably mounted on the upper end of the rotating plate 51, the fixed shaft 74 is mounted on the upper end of the support plate 73, the clamping wheel 71 is rotatably mounted on the fixed shaft 74, and the other end of the telescopic spring 72 is connected to the support plate 73.

[0066] From the above, it can be seen that under the action of the clamping wheel 71, the telescopic spring 72, the support plate 73 and the fixed shaft 74, when the polishing roller 2 is between the rolling wheel 31 and the clamping wheel 71, it is clamped by the pressure of the telescopic spring 72, making it difficult for the polishing roller 2 to fall off during the process of being driven to rotate by the rolling wheel 31.

[0067] The support plate 73 includes a sleeve plate 731 and a slide plate 732. The slide plate 732 is slidably plugged into the upper end of the sleeve plate 731. The middle part of one side of the sleeve plate 731 is rotatably connected to the upper end of the rotating plate 51. The upper end of the slide plate 732 is fixedly connected to the fixed shaft 74. A bolt 733 is threadedly connected to one side of the sleeve plate 731. The end of the bolt 733 passes through a side wall of the sleeve plate 731 and abuts against one side of the slide plate 732.

[0068] As can be seen from the above, since the support plate 73 includes the sleeve plate 731 and the slide plate 732, the position of the clamping wheel 71 is adjustable, and the slide plate 732 can be fixed after the adjustment is completed by setting the bolts 733.

[0069] A lower connecting rod 58 is fixedly installed on one side of the rotating plate 51, a side extension plate 75 is fixedly installed on the upper end of one side of the sleeve plate 731, an upper connecting rod 76 is fixedly installed on one end of the side extension plate 75, two ends of the telescopic spring 72 are respectively hung and installed on the lower connecting rod 58 and the upper connecting rod 76, a notch 59 is opened on the side of the rotating plate 51, an extension plate 77 is fixedly installed on the lower end of the other side of the sleeve plate 731, an insertion rod 78 is fixedly installed on one end of the extension plate 77, and the insertion rod 78 is adapted to be plugged into the notch 59.

[0070] As can be seen from the above, when the connecting line of the lower connecting rod 58 and the upper connecting rod 76 is parallel to the length direction of the rotating plate 51, the length of the telescopic spring 72 is stretched to the maximum as shown in the figure. Figure 7As shown in , at this time, a part of the insertion rod 78 is inserted into the notch 59, and the insertion rod 78 does not abut against the end of the notch 59, leaving a small amount of moving space. Therefore, when the insertion rod 78 is inserted into the inside of the notch 59 and abuts against one end of the notch 59, the stretching length of the telescopic spring 72 is shortened, and the sleeve plate 731 can maintain a state where the lower end is close to the center of the shell 1 under the tension of the telescopic spring 72. When the polishing roller 2 is placed inside the equipment, the bottom of the polishing roller 2 must first squeeze the lower end of the sleeve plate 731 so that the sleeve plate 731 rotates to contact the rolling wheel 31. Due to the pressure of the polishing roller 2, the sleeve plate 731 rotates and pulls The telescopic spring 72 is stretched to its maximum and then gradually shortened, so that the clamping wheel 71 can clamp the side of the polishing roller 2, making it simple and convenient to place the polishing roller 2 inside the device. In addition, when the polishing roller 2 is taken out of the device, the polishing roller 2 moves upward to squeeze the clamping wheel 71, so that the spacing between the clamping wheels 71 increases. However, in this embodiment, in most cases, the rotation of the sleeve plate 731 cannot achieve a state in which the line connecting the lower connecting rod 58 and the upper connecting rod 76 is parallel to the length direction of the rotating plate 51. That is to say, after the polishing roller 2 is taken out, under the pulling force of the telescopic spring 72, the device will appear as shown in the attached figure. Figure 8 In the state shown, the clamping wheels 71 on both sides are close to each other, and the overall height of the equipment is reduced, which is convenient for storing the device.

[0071] Embodiment 5

[0072] See also Figure 1 - Figure 8 The present invention also discloses a polishing process for jewelry processing, the specific steps are:

[0073] Place the jewelry to be polished and the abrasive into the polishing drum 2, and ensure that the cover of the polishing drum 2 is locked;

[0074] The polishing drum 2 is placed between the rolling wheels 31 through the clamping wheels 71 on both sides, and the interval between the rolling wheels 31 on both sides is adjusted by the interval adjustment mechanism 5, so that the polishing drum 2 can stably roll between the rolling wheels 31;

[0075] The driving motor 41 drives the rolling wheel 31 to rotate, so as to drive the polishing drum 2 to rotate;

[0076] After polishing is completed, the polishing drum 2 is taken out and the jewels and abrasives inside are poured out.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding and polishing device, comprising a housing, a polishing drum, a support shaft and a rolling wheel, wherein the support shaft is movably arranged above the housing, the rolling wheel is fixedly mounted on the support shaft, and the polishing drum is mounted between the rolling wheels, characterized in that: The shell is provided with an interval adjustment mechanism, which includes a rotating plate and a guide rod. The lower end of the rotating plate is rotatably mounted on the outer side wall of the shell, the support shaft is rotatably connected to the rotating plate, the guide rod is slidably mounted on the outside of the shell along the vertical direction, and both ends of the guide rod are connected to the rotating plate, so as to move and pull the rotating plates on both sides to rotate relative to each other; The housing is also provided with an anti-drop mechanism, which includes a clamping wheel and a telescopic spring. The clamping wheel is arranged above the rolling wheel, and one end of the telescopic spring is connected to the rotating plate to push the clamping wheel to squeeze the side edge of the polishing drum. A driving shaft is rotatably installed between the two ends of the shell, and the driving shaft is used to drive the support shaft to rotate. A driving motor is fixedly installed inside the shell, and the driving end of the driving motor is connected to the driving shaft through a transmission pulley.

2. A grinding and polishing device according to claim 1, characterized in that: Connecting shafts are provided on both sides of the driving shaft, and both ends of the connecting shaft pass through the two side walls of the shell and are rotatably connected to the shell, and the two connecting shafts are vertically symmetrical relative to the driving shaft. The lower end of the rotating plate is rotatably connected to the end of the connecting shaft, and a driving gear is fixedly installed on the driving shaft, and a transmission gear is fixedly installed on the connecting shaft. The driving gear and the transmission gear are meshed and connected, and the connecting shaft and the supporting shaft are connected through a transmission pulley.

3. A grinding and polishing device according to claim 1, characterized in that: The interval adjustment mechanism also includes a guide rail, a lifting slider and a rotating block. The bottom of the guide rail is fixedly connected to the outer wall of one side of the shell. A sliding hole is opened in the middle of the guide rail. The lifting slider is slidably installed in the sliding hole. The rotating block is rotatably installed on the rotating plate. The guide rod passes through the lifting slider and is fixedly connected to the lifting slider, and the end of the guide rod passes through the rotating block and is slidably connected to the rotating block.

4. A grinding and polishing device according to claim 3, characterized in that: A screw and a control rod are provided on one side of the guide rail, the screw is rotatably installed on the side of the guide rail, a threaded through hole threadedly connected to the screw is opened on the lifting slider, two ends of the control rod penetrate the two side walls of the shell and are rotatably connected to the shell, and driving bevel gears are fixedly installed on both sides of the control rod, a driven bevel gear is fixedly installed on the lower end of the screw, the driven bevel gear and the driving bevel gear are meshed and connected, and a knob is fixedly installed on the end of the control rod.

5. A grinding and polishing device according to claim 4, characterized in that: A locking mechanism is provided on the side of the shell, and the locking mechanism includes a chuck, a block, a fixed plate, a pull rod and a return spring. The chuck is fixedly mounted on the control rod, one side of the block is engaged with the chuck, the fixed plate is fixedly mounted on one side of the shell, the pull rod is slidably mounted on the fixed plate, and one end of the pull rod is fixedly connected to the block, and both ends of the return spring are fixedly connected to the block and the fixed plate, respectively.

6. A grinding and polishing device according to claim 1, characterized in that: The anti-drop mechanism also includes a support plate and a fixed shaft. The support plate is rotatably mounted on the upper end of the rotating plate, the fixed shaft is mounted on the upper end of the support plate, the clamping wheel is rotatably mounted on the fixed shaft, and the other end of the telescopic spring is connected to the support plate.

7. A grinding and polishing device according to claim 6, characterized in that: The support plate includes a sleeve plate and a slide plate. The slide plate is slidably plugged into the upper end of the sleeve plate. The middle part of one side of the sleeve plate is rotatably connected to the upper end of the rotating plate. The upper end of the slide plate is fixedly connected to a fixed shaft. One side of the sleeve plate is threadedly connected with a bolt. The end of the bolt passes through a side wall of the sleeve plate and abuts against one side of the slide plate.

8. A grinding and polishing device according to claim 7, characterized in that: A lower connecting rod is fixedly installed on one side of the rotating plate, a side extension plate is fixedly installed on the upper end of one side of the sleeve plate, an upper connecting rod is fixedly installed on one end of the side extension plate, both ends of the telescopic spring are respectively hung and installed with the lower connecting rod and the upper connecting rod, a notch is opened on the side of the rotating plate, an extension plate is fixedly installed on the lower end of the other side of the sleeve plate, an insertion rod is fixedly installed on one end of the extension plate, and the insertion rod is adapted to be plugged into the notch.

9. The grinding and polishing equipment according to claim 1, characterized in that: A vibration base is installed at the bottom of the shell, and the vibration base includes a bottom plate and a vibration motor. A buffer pad is fixedly installed on the lower surface of the bottom plate, and a buffer spring is fixedly installed on the upper surface of the bottom plate. The upper end of the buffer spring is fixedly connected to the lower surface of the shell, and the vibration motor is fixedly installed on the lower surface of the shell.

10. A polishing process for jewelry processing, using a grinding and polishing device as claimed in any one of claims 1 to 9, characterized in that: The specific steps are: Place the jewelry and abrasive to be polished into the polishing drum, and make sure the cover of the polishing drum is locked; The polishing drum is placed between the rolling wheels through the clamping wheels on both sides, and the spacing between the rolling wheels on both sides is adjusted by the spacing adjustment mechanism, so that the polishing drum can stably roll between the rolling wheels; The rolling wheel is driven by a driving motor to rotate, so that the polishing drum is driven to rotate; After polishing is completed, remove the polishing drum and pour out the jewels and abrasives inside.

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