A foil tape polishing device

Abstract

The application relates to the technical field of foil belt polishing, in particular to a foil belt polishing device which comprises two left and right supporting frames, the top end of each of the two supporting frames is rotationally connected with a tensioning roller through a rotating shaft, the top end of each of the two supporting frames is rotationally connected with a foil belt drum and a take-up roller through rotating shafts, the polishing device further comprises two front and rear stands, the top end of each of the stands is rotationally connected with a balance plate through a hinge, the connection between the balance plate and the top end of the stand is located at the center position of the balance plate, a sliding block is slidably connected to the stand, the top end of the sliding block is rotationally connected with a connecting rod through a hinge, the top end of the connecting rod is rotationally connected with one side of the bottom end of the balance plate through a hinge, the inner sides of the two ends of the balance plate located on the front side are rotationally connected with polishing rollers, the two ends of the balance plate located on the rear side are fixedly connected with inner rings, the outer sides of the inner rings are rotationally connected with the inner sides of the polishing rollers, and the rotating direction of the polishing rollers is opposite to the moving direction of the foil belt.

Description

Technical Field

[0001] This invention relates to the field of foil polishing technology, specifically to a foil polishing apparatus. Background Technology

[0002] Foil strip is a strip made of metal. During the production process of foil strip, the surface of the foil strip needs to be polished. For some thinner foil strips, polishing methods such as electrochemical polishing, chemical polishing, chemical mechanical polishing, ion beam cleaning, and ultrasonic polishing are often adopted. For some thicker foil strips, mechanical grinding is often used for polishing due to cost advantages.

[0003] like Figure 1 As shown, the existing polishing method involves a polishing disc 2 rotating at a constant speed. Thick cotton pads and abrasive paste are fixed on the polishing disc 2, allowing the cotton pads to contact the surface of the foil belt 1 to complete the polishing process. In this operation, because the polishing area of ​​the polishing disc 2 is circular, and the foil belt 1 moves forward at a uniform speed, there will be over-polished areas and under-polished areas during the movement of the foil belt 1. That is, the closer the foil belt 1 is to the center of the polishing disc 2, the longer its polishing time will be, and the farther away the foil belt 1 is from the center of the polishing disc 2, the shorter its polishing time will be, resulting in uneven polishing. At the same time, during the polishing process by the polishing disc 2, the rotating polishing disc 2 will cause the moving foil belt 1 to generate a biasing force, causing the moving foil belt 1 to deviate to one side. In addition, the above polishing method cannot achieve simultaneous polishing of the front and back sides, so there is still room for improvement in its polishing efficiency.

[0004] Therefore, a foil polishing device is proposed to address the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a foil polishing device to solve the problems mentioned in the background art, namely, that "the existing polishing method uses a polishing disc that rotates at a constant speed, with a thick cotton pad and abrasive paste fixed on the disc, so that the cotton pad contacts the surface of the foil to complete the polishing process. In the above operation, because the polishing area of ​​the polishing disc is circular and the foil moves forward at a uniform speed, there will be over-polished areas and under-polished areas during the foil's movement. That is, the foil closer to the center of the polishing disc will have a longer polishing time, and the foil farther away from the center of the polishing disc will have a shorter polishing time, resulting in uneven polishing. At the same time, during the polishing process, the rotating polishing disc will cause the moving foil to generate a biasing force, causing the foil to deviate to one side. In addition, the above polishing method cannot achieve simultaneous polishing of the front and back sides, so there is still room for improvement in its polishing efficiency."

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] Compared with the prior art, the beneficial effects of the present invention are: a foil strip polishing device includes two support frames, left and right, and tension rollers are rotatably connected to the top of each of the two support frames via a rotating shaft; and foil strip tubes and take-up rollers are rotatably connected to the top of each of the two support frames via rotating shafts respectively.

[0008] The polishing device also includes two columns, front and rear. The top of each column is hinged to a balance plate. The connection between the balance plate and the top of the column is at the center of the balance plate. A slider is slidably connected to the column. The top of the slider is hinged to a connecting rod. The top of the connecting rod is hinged to one side of the bottom of the balance plate. Polishing rollers are rotatably connected to the inner sides of both ends of the balance plate on the front side. Inner rings are fixedly connected to both ends of the balance plate on the rear side. The outer side of the inner rings is rotatably connected to the inner side of the polishing rollers.

[0009] The foil strip on the foil roll passes sequentially through the left tension roller, the bottom and top of the two polishing rollers, and then winds around the take-up roller on the left tension roller. The rotation direction of the polishing roller is opposite to the movement direction of the foil strip.

[0010] Under the above configuration, when using the present invention, the foil strip tube is installed on the rotating shaft on the support frame located on the left side, so that the foil strip on the foil strip tube passes sequentially through the left tension roller, the bottom and top ends of the two polishing rollers, and the left tension roller and is wound onto the take-up roller. The take-up roller is driven by a drive motor, which is not shown in the figure. When the drive motor rotates, it will drive the take-up roller to rotate, thereby realizing the winding of the foil strip.

[0011] During the foil winding process, the foil strip continuously rubs against the polishing roller. The cotton cloth layer with abrasive paste on the polishing roller rubs against the polishing roller, thus achieving the polishing effect. The polishing roller is perpendicular to the foil strip. During polishing, the contact time between each part of the foil strip and the polishing roller is uniform, thus achieving the effect of uniform polishing. Moreover, the force direction of the foil strip is consistent with the movement direction of the foil strip, thereby avoiding the bias force generated by the rotating polishing disc during the polishing process in the prior art, which causes the foil strip to deviate to one side.

[0012] As a preferred embodiment of the foil polishing device of the present invention, an electric push rod is provided on one side of the column, and the movable end of the electric push rod is fixedly connected to the bottom end of the slider.

[0013] Under the above settings, the present invention can adjust the polishing time of the polishing roller, thereby increasing or decreasing the polishing effect of the polishing roller. When the polishing time is increased, the movable end of the electric push rod moves upward, and the movable end of the electric push rod drives the slider to move upward. When the slider moves upward, it will cause the balance plate to tilt through the connecting rod. When the balance plate tilts, the contact area between the polishing roller and the foil will increase, thereby changing the polishing time of the foil.

[0014] In this invention, polishing of the upper and lower layers of the foil strip is achieved simultaneously by two polishing rollers, increasing polishing efficiency. The polishing rollers in this invention rotate in opposite directions. The polishing rollers are driven by a drive mechanism. When the motor in the drive mechanism rotates, it drives the second bevel gear to rotate. When the second bevel gear rotates, it drives the first bevel gear to rotate. The rotation of the first bevel gear drives the polishing rollers to rotate. At the same time, the two polishing rollers rotate in opposite directions, which can achieve reverse rotation of the foil strip with the two polishing rollers respectively. The reverse rotation increases the friction.

[0015] As a preferred embodiment of the foil polishing device of the present invention, a driving mechanism is provided on the inner side of the balance plate located at the front. The driving mechanism includes a motor, which is fixedly connected to the inner side of the balance plate. A first bevel gear is fixedly connected to one end of the polishing roller, and a second bevel gear is fixedly connected to the output ends on both sides of the motor. The outer sides of the first bevel gear and the second bevel gear mesh with each other, and the two polishing rollers rotate in opposite directions by the rotation of the motor.

[0016] As a preferred embodiment of the foil polishing device of the present invention, a limiting rod is slidably connected to the inner side of the bottom end of the support frame located on the right side. One end of the limiting rod is fixedly connected to a sliding plate. The top end of the sliding plate is fixedly connected to the bottom ends of both sides of the take-up roller. A first spring is provided on the outer side of the limiting rod. The two ends of the first spring are fixedly connected to one side of the sliding plate and one side of the support frame, respectively.

[0017] Under the above settings, when the balance plate tilts, the foil strip will be subjected to increased force. In order to prevent the foil strip from breaking due to sudden increase in force, the present invention provides a buffer mechanism at the take-up roller. The buffer mechanism is achieved through the first spring and the displacement compensation of the first spring.

[0018] As a preferred embodiment of the foil polishing device of the present invention, the polishing roller includes an outer ring, a cotton cloth layer is fixedly connected to the outer side of the outer ring, a material taking tube is fixedly provided on the inner side of the outer ring, the outer ring is located on the outer side of the inner ring, there is an annular gap between the outer ring and the inner ring, the inner side of the annular gap is filled with abrasive paste, the outlet end of the material taking tube is located on the inner side of the cotton cloth layer, and the inlet end of the material taking tube can be intermittently exposed in the annular gap.

[0019] Under the above settings, when the polishing roller rotates, the cotton cloth layer on its surface can continuously acquire new abrasive paste to maintain the polishing effect. When the polishing roller rotates, the outer ring on the inner side of the polishing roller rotates relative to each other, and the protrusion can slide over the convex strip to move the protrusion towards the inner side of the slide groove. When the protrusion moves towards the inner side of the slide groove, it will squeeze the abrasive paste on the inner side of the slide groove through the second one-way valve to the inner side of the cotton cloth layer. After the protrusion slides over the convex strip, the protrusion gradually resets under the action of the second spring, and the slide groove gradually develops negative pressure. The inlet end on the slide rod is gradually exposed in the annular gap between the outer ring and the inner ring. Under the action of the negative pressure on the inner side of the slide groove, new abrasive paste enters the inner side of the slide groove, thereby realizing the cyclic injection of abrasive paste.

[0020] This method of applying the exfoliating compound is simple and quick, and can be linearly adjusted according to the rotation speed of the polishing roller. In actual use, it can prevent the amount of exfoliating compound applied from being too much or too little.

[0021] As a preferred embodiment of the foil polishing device of the present invention, a groove is provided on the inner side of the feeding tube, a piston is slidably connected to the inner side of the groove, one end of the piston is fixedly connected to a protrusion by a sliding rod, the sliding rod is slidably connected to the inner side of the feeding tube, the sliding rod is hollow, the inlet end of the feeding tube is opened on the sliding rod, and a second one-way valve is provided at the outlet end of the feeding tube.

[0022] As a preferred embodiment of the foil polishing device of the present invention, a second spring is provided on the inner side of the slide groove, and the two ends of the second spring are fixedly connected to the inner side of one end of the slide groove and one end of the piston, respectively. The abrasive paste in the annular gap is squeezed into the cotton cloth layer through the inner side of the slide groove by the reciprocating motion of the protrusion.

[0023] In a preferred embodiment of the foil polishing device of the present invention, a protruding strip is fixedly connected to the outer side of the inner ring, and the outer side of the protruding strip is slidably connected to the outer side of the protrusion. When the inner ring and the outer ring rotate relative to each other, the protrusion can slide past the protruding strip and move towards the inner side of the groove.

[0024] As a preferred embodiment of the foil polishing device of the present invention, a first one-way valve is provided on the inner side of the inner ring, the first one-way valve connects the inner side of the inner ring with the inner side of the annular gap, one end of the inner ring is connected to a polishing paste cylinder through a feeding pipe, the top of the polishing paste cylinder is provided with a feeding cap for adding polishing paste, and the top inner side of the polishing paste cylinder is connected to a booster pump.

[0025] Under the above configuration, the exfoliating paste in the annular gap of the present invention is replenished by the exfoliating paste cylinder and the first one-way valve. The exfoliating paste in the exfoliating paste cylinder flows into the annular gap through the first one-way valve under the pressure of the booster pump.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In this foil strip polishing device, the foil strip tube is installed on a rotating shaft on a support frame on the left side. The foil strip on the tube passes sequentially through the left tension roller, the bottom and top ends of two polishing rollers, and then winds around the left tension roller onto a take-up roller. The take-up roller is driven by a drive motor. When the drive motor rotates, it drives the take-up roller to rotate, thereby winding the foil strip. During the winding process, the foil strip continuously rubs against the polishing roller. The cotton cloth layer with abrasive paste on the polishing roller rubs against the polishing roller, thus achieving a polishing effect. The polishing roller is perpendicular to the foil strip. During polishing, the contact time between each part of the foil strip and the polishing roller is uniform, thus achieving a uniform polishing effect. Moreover, the force direction of the foil strip is consistent with the movement direction of the foil strip, thereby avoiding the situation in the prior art where the rotating polishing disc causes the moving foil strip to deviate to one side during polishing.

[0028] 2. This foil belt polishing device allows for adjustment of the polishing time of the polishing roller, thereby increasing or decreasing the polishing effect. When the polishing time is increased, the movable end of the electric push rod moves upward, driving the slider to move upward. After the slider moves upward, it tilts the balance plate via the connecting rod. When the balance plate tilts, the contact area between the polishing roller and the foil belt increases, thus changing the polishing time of the foil belt.

[0029] 3. In this foil polishing device, two polishing rollers simultaneously polish the upper and lower layers of the foil, increasing polishing efficiency. The polishing rollers rotate in opposite directions via a drive mechanism. When the motor in the drive mechanism rotates, it drives the second bevel gear to rotate, which in turn drives the first bevel gear to rotate. The rotation of the first bevel gear drives the polishing rollers to rotate. Simultaneously, the two polishing rollers rotate in opposite directions, enabling them to rotate in the opposite direction to the foil. This reverse rotation increases friction.

[0030] 4. In this foil polishing device, when the balance plate tilts, the foil will be subjected to increased force. In order to prevent the foil from breaking due to sudden increase in force, the present invention provides a buffer mechanism at the take-up roller. The buffer mechanism is achieved by the first spring and the displacement compensation of the first spring.

[0031] 5. This foil belt polishing device, when the polishing roller rotates, its surface cotton cloth layer can continuously acquire new abrasive paste to maintain the polishing effect. When the polishing roller rotates, the outer ring on the inner side of the polishing roller rotates relative to each other, and the protrusion can slide over the convex strip to move the protrusion towards the inner side of the slide groove. When the protrusion moves towards the inner side of the slide groove, it will squeeze the abrasive paste on the inner side of the slide groove through the second one-way valve to the inner side of the cotton cloth layer. After the protrusion slides over the convex strip, the protrusion gradually returns to its original position under the action of the second spring, and the slide groove gradually develops negative pressure. The inlet end on the slide rod is gradually exposed in the annular gap between the outer and inner rings. Under the action of the negative pressure on the inner side of the slide groove, new abrasive paste enters the inner side of the slide groove, thereby realizing the cyclic injection of abrasive paste. This abrasive paste injection method is simple and quick, and can be linearly adjusted according to the rotation speed of the polishing roller. In actual use, it can prevent the abrasive paste from being added too much or too little. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall installation structure of an existing polishing method;

[0033] Figure 2 This is a schematic diagram of the overall appearance and installation structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the installation structure of the present invention when the polishing time is relatively short;

[0035] Figure 4 This is a schematic diagram of the installation structure of the present invention when polishing is performed in multiple stages;

[0036] Figure 5 This is a schematic diagram of the overall front view of the mounting structure of the present invention;

[0037] Figure 6 For the present invention Figure 5 Schematic diagram of the installation structure at point A in the diagram;

[0038] Figure 7 This is a schematic diagram of the installation structure of the drive mechanism of the present invention;

[0039] Figure 8 This is a schematic diagram of the internal side view of the mounting structure of the polishing roller of the present invention;

[0040] Figure 9 For the present invention Figure 8 Schematic diagram of the installation structure at point B in the diagram;

[0041] Figure 10 This is a schematic diagram of the internal mounting structure of the polishing roller of the present invention.

[0042] In the diagram: 1. Foil strip; 2. Grinding disc; 3. Support frame; 4. Foil strip tube; 5. Motor; 6. Polishing roller; 7. Balance plate; 8. Column; 9. Electric push rod; 10. Slider; 11. Connecting rod; 12. Feeding pipe; 13. Booster pump; 14. Feeding cover; 15. Abrasive paste cylinder; 16. Tensioning roller; 17. Take-up roller; 18. Limiting rod; 19. First spring; 20. Slide plate; 21. First bevel gear; 22. Second bevel gear;

[0043] 61. Cotton cloth layer; 62. Outer ring; 63. Annular gap; 64. Inner ring; 65. First one-way valve; 66. Feed tube; 67. Raised bar; 68. Slide groove; 69. Piston; 610. Raised block; 611. Second spring; 612. Second one-way valve; 613. Inlet end; 614. Outlet end. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] Please see Figure 2-7 The present invention provides a technical solution:

[0047] A foil polishing device includes two support frames 3 on the left and right. The top ends of the two support frames 3 are rotatably connected to tension rollers 16 via rotating shafts. The top ends of the two support frames 3 are respectively rotatably connected to foil tubes 4 and take-up rollers 17 via rotating shafts.

[0048] The polishing device also includes two columns 8, one at the front and one at the back. The top of each column 8 is rotatably connected to a balance plate 7 via a hinge. The connection between the balance plate 7 and the top of the column 8 is at the center of the balance plate 7. A slider 10 is slidably connected to the column 8. The top of the slider 10 is rotatably connected to a connecting rod 11 via a hinge. The top of the connecting rod 11 is rotatably connected to one side of the bottom of the balance plate 7 via a hinge. Polishing rollers 6 are rotatably connected to the inner sides of both ends of the balance plate 7 located at the front. Inner rings 64 are fixedly connected to both ends of the balance plate 7 located at the rear. The outer side of the inner rings 64 is rotatably connected to the inner side of the polishing rollers 6.

[0049] The foil strip 1 on the foil strip 4 passes sequentially through the left tension roller 16, the bottom and top of the two polishing rollers 6, and the left tension roller 16 is wound onto the take-up roller 17. The rotation direction of the polishing roller 6 is opposite to the movement direction of the foil strip 1.

[0050] Under the above configuration, when the present invention is used, the foil strip 4 is mounted on the rotating shaft on the support frame 3 located on the left side, so that the foil strip 1 on the foil strip 4 passes sequentially through the left tension roller 16, the bottom and top ends of the two polishing rollers 6, and the left tension roller 16 and is wound onto the take-up roller 17. The take-up roller 17 is driven by a drive motor, which is not shown in the figure. When the drive motor rotates, it will drive the take-up roller 17 to rotate, thereby realizing the winding of the foil strip 1.

[0051] During the winding process of foil strip 1, foil strip 1 will continuously rub against polishing roller 6. The cotton cloth layer 61 with abrasive paste on polishing roller 6 will rub against polishing roller 6, thereby achieving the polishing effect. Polishing roller 6 is perpendicular to foil strip 1. During polishing, the contact time between each position of foil strip 1 and polishing roller 6 is uniform, thereby achieving the effect of uniform polishing. Moreover, the force direction of foil strip 1 is consistent with the movement direction of foil strip 1, thereby avoiding the bias force generated by the rotating polishing disc 2 during the polishing process in the prior art, which causes the moving foil strip 1 to deviate to one side.

[0052] Example 2

[0053] This embodiment is a further improvement on embodiment 1. Please refer to [link / reference]. Figure 2-7 An electric push rod 9 is provided on one side of the aforementioned column 8, and the movable end of the electric push rod 9 is fixedly connected to the bottom end of the slider 10.

[0054] Under the above settings, the present invention can adjust the polishing time of the polishing roller 6, thereby increasing or decreasing the polishing effect of the polishing roller 6. When the polishing time is increased, the movable end of the electric push rod 9 moves upward, and the movable end of the electric push rod 9 drives the slider 10 to move upward. When the slider 10 moves upward, it will cause the balance plate 7 to tilt through the connecting rod 11. When the balance plate 7 tilts, the contact area between the polishing roller 6 and the foil belt 1 will increase, thereby changing the polishing time of the foil belt 1.

[0055] In this invention, polishing of the upper and lower layers of the foil strip 1 is achieved simultaneously by two polishing rollers 6, increasing the polishing efficiency. The polishing rollers 6 rotate in opposite directions via a drive mechanism. When the motor 5 in the drive mechanism rotates, it drives the second bevel gear 22 to rotate. When the second bevel gear 22 rotates, it drives the first bevel gear 21 to rotate. The rotation of the first bevel gear 21 drives the polishing rollers 6 to rotate. At the same time, the two polishing rollers 6 rotate in opposite directions, which can achieve reverse rotation of the foil strip 1 with the two polishing rollers 6 respectively. The reverse rotation increases the friction.

[0056] Specifically, a drive mechanism is provided on the inner side of the balance plate 7 located on the front side. The drive mechanism includes a motor 5, which is fixedly connected to the inner side of the balance plate 7. One end of the polishing roller 6 is fixedly connected to a first bevel gear 21, and the output ends on both sides of the motor 5 are fixedly connected to second bevel gears 22. The outer sides of the first bevel gear 21 and the second bevel gear 22 mesh with each other, and the two polishing rollers 6 rotate in opposite directions by the rotation of the motor 5.

[0057] Example 3

[0058] This embodiment is a further improvement on embodiment 1. Please refer to [link / reference]. Figure 2-7 A limiting rod 18 is slidably connected to the inner side of the bottom end of the support frame 3 located on the right side. One end of the limiting rod 18 is fixedly connected to a slide plate 20. The top end of the slide plate 20 is fixedly connected to the bottom ends of both sides of the take-up roller 17. A first spring 19 is provided on the outer side of the limiting rod 18. The two ends of the first spring 19 are fixedly connected to one side of the slide plate 20 and one side of the support frame 3, respectively.

[0059] Under the above settings, when the balance plate 7 tilts, the foil strip 1 will be subjected to increased force. In order to prevent the foil strip 1 from breaking due to sudden increase in force, the present invention provides a buffer mechanism at the take-up roller 17. The buffer mechanism is achieved through the displacement compensation of the first spring 19.

[0060] Example 4

[0061] This embodiment is a further improvement on embodiment 1. Please refer to [link / reference]. Figure 2-10 The polishing roller 6 includes an outer ring 62, a cotton cloth layer 61 is fixedly connected to the outer side of the outer ring 62, a material taking tube 66 is fixedly provided on the inner side of the outer ring 62, the outer ring 62 is located on the outer side of the inner ring 64, there is an annular gap 63 between the outer ring 62 and the inner ring 64, the inner side of the annular gap 63 is filled with abrasive paste, the outlet end 614 of the material taking tube 66 is located on the inner side of the cotton cloth layer 61, and the inlet end 613 of the material taking tube 66 can be intermittently exposed in the annular gap 63.

[0062] Under the above settings, when the polishing roller 6 rotates, the cotton cloth layer 61 on its surface can continuously acquire new abrasive paste to maintain the polishing effect. When the polishing roller 6 rotates, the outer ring 62 on the inner side of the polishing roller 6 rotates relative to each other. The protrusion 610 can slide past the protrusion 67 and move towards the inner side of the slide groove 68. When the protrusion 610 moves towards the inner side of the slide groove 68, it will squeeze the abrasive paste on the inner side of the slide groove 68 through the second one-way valve 612 and squeeze it towards the inner side of the cotton cloth layer 61. After the protrusion 610 slides past the protrusion 67, the protrusion 610 gradually resets under the action of the second spring 611. The slide groove 68 gradually develops negative pressure, and the inlet end 613 on the slide rod is gradually exposed in the annular gap 63 between the outer ring 62 and the inner ring 64. Under the action of the negative pressure on the inner side of the slide groove 68, new abrasive paste enters the inner side of the slide groove 68, thereby realizing the cyclic injection of abrasive paste.

[0063] This method of applying the exfoliating compound is simple and quick, and can be linearly adjusted according to the rotation speed of the polishing roller 6. In actual use, it can prevent the amount of exfoliating compound from being applied too much or too little.

[0064] Specifically, a groove 68 is provided on the inner side of the aforementioned material taking tube 66, and a piston 69 is slidably connected to the inner side of the groove 68. One end of the piston 69 is fixedly connected to a protrusion 610 via a slide rod. The slide rod is slidably connected to the inner side of the material taking tube 66 and is hollow. The inlet end 613 of the material taking tube 66 is located on the slide rod, and a second one-way valve 612 is provided at the outlet end 614 of the aforementioned material taking tube 66.

[0065] Specifically, a second spring 611 is provided on the inner side of the aforementioned groove 68. The two ends of the second spring 611 are fixedly connected to the inner side of one end of the groove 68 and one end of the piston 69, respectively. Through the reciprocating motion of the aforementioned protrusion 610, the scrub in the annular gap 63 is squeezed into the cotton cloth layer 61 through the inner side of the groove 68.

[0066] Specifically, a protrusion 67 is fixedly connected to the outer side of the inner ring 64. The outer side of the protrusion 67 is slidably connected to the outer side of the protrusion 610. When the inner ring 64 and the outer ring 62 rotate relative to each other, the protrusion 610 can slide over the protrusion 67 and move towards the inner side of the groove 68.

[0067] Specifically, a first one-way valve 65 is provided on the inner side of the inner ring 64. The first one-way valve 65 connects the inner side of the inner ring 64 with the inner side of the annular gap 63. One end of the inner ring 64 is connected to the abrasive paste cylinder 15 through the feeding pipe 12. The top of the abrasive paste cylinder 15 is provided with a feeding cap 14 for adding abrasive paste. The top of the abrasive paste cylinder 15 is connected to the inner side of the top of the abrasive paste cylinder 15 and a booster pump 13.

[0068] Under the above configuration, the exfoliating paste in the annular gap 63 of the present invention is replenished by the exfoliating paste cylinder 15 and the first one-way valve 65. The exfoliating paste in the exfoliating paste cylinder 15 is replenished by the first one-way valve 65 under the pressure of the booster pump 13.

[0069] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foil polishing apparatus comprising two left and right support frames (3), characterized in that: The top end of each of the two support frames (3) is rotatably connected with a tension roller (16) through a rotating shaft, and the top end of each of the two support frames (3) is rotatably connected with a foil tape drum (4) and a take-up roller (17) respectively; The polishing device further comprises two front and rear vertical columns (8), the top end of the vertical column (8) is rotatably connected with a balance plate (7) through a hinge, the connection between the balance plate (7) and the top end of the vertical column (8) is located at the center of the balance plate (7), a sliding block (10) is slidably connected to the vertical column (8), the top end of the sliding block (10) is rotatably connected with a connecting rod (11) through a hinge, the top end of the connecting rod (11) is rotatably connected with one side of the bottom end of the balance plate (7) through a hinge, the inner side of both ends of the balance plate (7) on the front side is rotatably connected with a polishing roller (6), and the inner side of both ends of the balance plate (7) on the rear side is fixedly connected with an inner ring (64), the outer side of the inner ring (64) is rotatably connected with the inner side of the polishing roller (6). The foil tape (1) on the foil tape drum (4) sequentially passes through the left tension roller (16), the bottom end and the top end of the two polishing rollers (6), and the left tension roller (16) is wound on the take-up roller (17), and the rotating direction of the polishing roller (6) is opposite to the moving direction of the foil tape (1).

2. The foil polishing apparatus of claim 1, wherein: One side of the vertical column (8) is provided with an electric push rod (9), and the movable end of the electric push rod (9) is fixedly connected with the bottom end of the sliding block (10).

3. The foil polishing apparatus of claim 2, wherein: The inner side of the balance plate (7) on the front side is provided with a driving mechanism, the driving mechanism comprises a motor (5), the motor (5) is fixedly connected to the inner side of the balance plate (7), one end of the polishing roller (6) is fixedly connected with a first bevel gear (21), the output ends on both sides of the motor (5) are fixedly connected with second bevel gears (22), the outer sides of the first bevel gear (21) and the second bevel gears (22) are meshed, and the opposite direction rotation of the two polishing rollers (6) is realized through the rotation of the motor (5).

4. The foil polishing apparatus of claim 3, wherein: The bottom end of the support frame (3) on the right side is slidably connected with a limiting rod (18) on the inner side, one end of the limiting rod (18) is fixedly connected with a sliding plate (20), the top end of the sliding plate (20) is fixedly connected with the bottom end on both sides of the take-up roller (17), the outer side of the limiting rod (18) is provided with a first spring (19), and the two ends of the first spring (19) are fixedly connected with one side of the sliding plate (20) and one side of the support frame (3) respectively.

5. The foil polishing apparatus of claim 4, wherein: The polishing roller (6) comprises an outer ring (62), the outer side of the outer ring (62) is fixedly connected with a cotton cloth layer (61), the inner side of the outer ring (62) is fixedly provided with a material taking pipe (66), the outer ring (62) is arranged on the outer side of the inner ring (64), there is an annular gap (63) between the outer ring (62) and the inner ring (64), the inner side of the annular gap (63) is filled with a sanding paste, the outlet end (614) of the material taking pipe (66) is arranged on the inner side of the cotton cloth layer (61), and the inlet end (613) of the material taking pipe (66) can be intermittently exposed in the annular gap (63).

6. The foil polishing apparatus of claim 5, wherein: The inner side of the taking-out pipe (66) is provided with a sliding groove (68), the inner side of the sliding groove (68) is slidably connected with a piston (69), one end of the piston (69) is fixedly connected with a protruding block (610) through a sliding rod, the sliding rod is slidably connected with the inner side of the taking-out pipe (66), the sliding rod is hollow, the inlet end (613) of the taking-out pipe (66) is arranged on the sliding rod, and the outlet end (614) of the taking-out pipe (66) is provided with a second one-way valve (612).

7. The foil polishing apparatus of claim 6, wherein: The inner side of the sliding groove (68) is provided with a second spring (611), both ends of the second spring (611) are fixedly connected with the inner side of one end of the sliding groove (68) and one end of the piston (69), and the reciprocating movement of the protruding block (610) can extrude the polishing cream in the annular gap (63) to the cotton cloth layer (61) through the inner side of the sliding groove (68).

8. The foil polishing apparatus of claim 7, wherein: The outer side of the inner ring (64) is fixedly connected with a convex strip (67), the outer side of the convex strip (67) is slidably connected with the outer side of the protruding block (610), when the inner ring (64) and the outer ring (62) relatively rotate, the protruding block (610) can slide through the convex strip (67) and move to the inner side of the sliding groove (68).

9. The foil polishing apparatus of claim 8, wherein: The inner side of the inner ring (64) is provided with a first one-way valve (65), the first one-way valve (65) connects the inner side of the inner ring (64) with the inner side of the annular gap (63), one end of the inner ring (64) is communicated with a polishing cream cylinder (15) through a replenishing pipe (12), the top end of the polishing cream cylinder (15) is provided with a feeding cover (14) for feeding the polishing cream, and the top end of the polishing cream cylinder (15) is communicated with a booster pump (13).

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