Polishing and grinding machine for vacuum cup

Abstract

The present application belongs to the technical field of polishing and grinding, in particular to a polishing and grinding machine for vacuum cups. The machine comprises a machine bed, a support frame is fixed to the upper side of the machine bed, a sliding block is arranged on the upper side of the support frame, a first electric push rod is installed on the sliding block, a first connecting block is fixed to the telescopic end of the first electric push rod, a first fixing frame is fixed to the first connecting block, symmetrical rotating plates are rotatably connected to the first fixing frame, a connecting shell is fixed between the symmetrical rotating plates, an air bag is fixed to the outer side of the connecting shell between the symmetrical rotating plates, a friction sandpaper is detachably wrapped on the outer side of the air bag, and an air pump is installed on the upper side of the first fixing frame. The air pressure in the air bag is balanced by the air pressure balancing component, so that the pressure on each part of the outer side wall of the vacuum cup is always constant, thereby protecting the friction sandpaper on the outer side wall of the air bag.

Description

Technical Field

[0001] This invention relates to the field of polishing and grinding technology, and in particular mentions a polishing and grinding machine for thermos cups. Background Technology

[0002] As people become more aware of health and wellness, insulated cups are gaining more attention from young people. In the production process of insulated cups, the polishing step directly determines the smoothness and flatness of the surface. Currently, most insulated cups are polished directly using polishing wheels. However, when there are imperfections on the surface of the insulated cup (such as micro-protrusions), the polishing wheel will directly contact the micro-protrusions. This will significantly increase the pressure on both the micro-protrusions and the polishing wheel, which can easily lead to deformation of the insulated cup and reduce the lifespan of the polishing wheel. Summary of the Invention

[0003] In order to overcome the shortcomings mentioned in the background art, the present invention provides a polishing and grinding machine for thermos cups.

[0004] The technical solution of the present invention is as follows: a polishing and grinding machine for thermos cups, comprising a machine tool, a support frame fixedly connected to the upper side of the machine tool, a rotating frame rotatably connected to the upper side of the machine tool, a first connecting rod provided on the machine tool, a first motor mounted on the first connecting rod, a first drive wheel fixedly connected to the output shaft of the first motor, a first driven wheel fixedly connected to the rotating frame and engaging with the first drive wheel, a sliding block provided on the upper side of the support frame, a first electric push rod mounted on the sliding block, a first connecting block fixedly connected to the telescopic end of the first electric push rod, and a first driven wheel fixedly connected to the first connecting block. A fixed frame is provided, on which symmetrically distributed rotating plates are rotatably connected. A connecting shell is fixed between the symmetrically distributed rotating plates. An airbag located between the symmetrically distributed rotating plates is fixed to the outside of the connecting shell, and the connecting shell communicates with the airbag. Friction sandpaper is detachably wrapped around the outside of the airbag. An air pump is installed on the upper side of the first fixed frame, and the air outlet of the air pump communicates and cooperates with the connecting shell. A driving component for rotating the airbag is provided on the first connecting block, and an air pressure balancing component for maintaining the air pressure inside the airbag is provided on the connecting shell.

[0005] Furthermore, the driving component includes a first rotating rod, which is rotatably connected to the first fixed frame and fixedly connected to the connecting shell. A second rotating rod is rotatably connected to the first rotating rod via a bevel gear set. A second motor is mounted on the first connecting block, and the output shaft of the second motor is fixedly connected to the second rotating rod.

[0006] Furthermore, the air pressure balancing component includes an exhaust pipe, which is fixedly connected to the connecting shell and communicates with the airbag. The exhaust pipe is fixedly connected to the adjacent rotating plate, and the air outlet of the exhaust pipe passes through the adjacent rotating plate. A first slider is slidably connected inside the exhaust pipe, and a first elastic element is fixedly connected between the first slider and the exhaust pipe.

[0007] Furthermore, the diameter of the first slider is greater than the width of the exhaust pipe outlet.

[0008] Furthermore, it also includes a diameter-adapting mechanism, which is disposed on the support frame. The diameter-adapting mechanism is used to adapt to the diameter of various parts of the thermos cup. The diameter-adapting mechanism includes a first fixed tube, which is fixedly connected to the upper side of the support frame. A sliding rod is slidably connected to the first fixed tube. The end of the sliding rod away from the first fixed tube is fixedly connected to a sliding block. The sliding block is slidably connected to the support frame. A second slider is slidably connected inside the first fixed tube. A first sliding plate is fixedly connected inside the first fixed tube. A second elastic element is connected between the second slider and the first sliding plate. A flat pressure shell is fixedly connected to the upper side of the support frame. Two connecting pipes are connected between the flat pressure shell and the first fixed tube, and both connecting pipes are connected and cooperate with the second slider. A vent hole is provided on the upper side of the flat pressure shell. A second sliding plate is slidably connected inside the flat pressure shell. A second electric push rod is fixedly connected to the upper side of the support frame. The telescopic end of the second electric push rod is pressed and cooperated with the sliding block. A diameter-adapting component for adjusting the rotation speed of the rotating frame is provided on the first connecting block.

[0009] Furthermore, one-way valves are provided in both connecting pipes between the flat pressure shell and the first fixed pipe, and the one-way directions of the two one-way valves are opposite.

[0010] Furthermore, the variable diameter adaptation component includes a second connecting block, which is fixedly connected to the support frame. A third slider is slidably connected to the second connecting block. The third slider is fixedly connected to the first connecting rod, which is slidably connected to the machine tool. A third elastic element is connected between the second connecting block and the third slider. A connecting frame is fixedly connected to the first connecting block. A fourth slider that slides and presses against the third slider is slidably connected to the connecting frame. The fourth slider is slidably connected to the second connecting block.

[0011] Furthermore, it also includes a polishing liquid spraying component, which is disposed on the first connecting block. The polishing liquid spraying component is used to spray polishing liquid onto the thermos cup. The polishing liquid spraying component includes a connecting plate, which is fixedly connected to the lower side of the first connecting block. The connecting plate is detachably connected to a second fixing tube. The second fixing tube is fixedly connected to and communicates with a nozzle on the side near the airbag. The second fixing tube is slidably connected to a push plug. The push plug is fixedly connected to a rack that is slidably connected to the connecting plate. The second connecting block is slidably connected to a second connecting rod that is slidably connected to the connecting plate. The second connecting rod is equipped with a third motor. The output shaft of the third motor is fixedly connected to a second drive wheel. The first connecting block is rotatably connected to a third rotating rod. The third rotating rod is fixedly connected to a second driven wheel that is in transmission cooperation with the second drive wheel. The third rotating rod is fixedly connected to a gear that meshes with the rack.

[0012] Furthermore, it also includes a thermos cup fixing mechanism, which is disposed on the machine tool and used to fix the polished thermos cup. The thermos cup fixing mechanism includes a second fixing frame, which is fixedly connected to the upper side of the machine tool and rotatably connected to the rotating frame. The rotating frame is slidably connected to a third sliding plate. A circumferentially distributed support plate is fixedly connected to the upper side of the second fixing frame, and the circumferentially distributed support plates all penetrate the third sliding plate. A first fixing block is rotatably connected to the upper end of the support plate, and a torsion spring is provided between the two. A circumferentially distributed pressing block is fixedly connected to the upper side of the third sliding plate, and the pressing block is pressed and engaged with the adjacent first fixing block. A third electric push rod is installed on the upper side of the machine tool, and the telescopic end of the third electric push rod is fixedly connected to the third sliding plate. A fourth electric push rod is installed on the support frame, and the telescopic end of the fourth electric push rod is rotatably connected to a second fixing block. The central axis of the second fixing block is on the same straight line as the central axis of the rotating frame.

[0013] The beneficial effects of this invention are: when there are micro-protrusions on the outer wall of the thermos being polished, the air pressure in the airbag is balanced by the air pressure balancing component, so that the pressure on all parts of the outer wall of the thermos is always at a constant value, thereby protecting the friction sandpaper on the outer wall of the airbag and avoiding the overuse of the polishing wheel due to the micro-protrusions on the outer wall of the thermos during the polishing process, which would reduce the service life of the polishing wheel.

[0014] This invention maintains a constant gas pressure inside the airbag by moving the airbag to fit the shape of the outer wall of the thermos.

[0015] This invention uses a first connecting block to drive the first drive wheel downwards, causing the diameter at the contact point between the first drive wheel and the first driven wheel to decrease, thus reducing the rotation speed of the rotating frame and consequently reducing the rotation speed of the thermos. This ensures that the thermos is polished evenly, preventing over-polishing of the diameter-changing parts of the thermos due to changes in its diameter, which would otherwise occur when polishing the diameter-changing parts of the thermos because the rotation speed of the thermos remains constant. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the flat pressure shell, the second connecting block, and the fourth electric push rod of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the first motor, the first drive wheel, and the first driven wheel of the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the first fixing frame, rotating plate, and airbag of the present invention;

[0020] Figure 5 This is a three-dimensional structural diagram of the air pump, the first rotating rod, and the exhaust pipe of the present invention;

[0021] Figure 6 This is a three-dimensional structural diagram of the exhaust pipe, the first slider, and the first elastic element of the present invention;

[0022] Figure 7 This is a three-dimensional structural diagram of the flat pressure shell, the second connecting block, and the connecting frame of the present invention;

[0023] Figure 8 This is a three-dimensional structural diagram of the second connecting block, the third slider, and the third elastic element of the present invention;

[0024] Figure 9 This is a three-dimensional structural diagram of the third elastic element, the connecting frame, and the fourth slider of the present invention;

[0025] Figure 10 This is a three-dimensional structural diagram of the second slider, the first sliding plate, and the second elastic element of the present invention;

[0026] Figure 11 This is a three-dimensional structural diagram of the connecting plate, the second fixing tube, and the pushing plug of the present invention;

[0027] Figure 12 This is a three-dimensional structural diagram of the third motor, the second drive wheel, and the third rotating rod of the present invention;

[0028] Figure 13 This is a three-dimensional structural diagram of the first fixing block, the pressing block, and the third electric push rod of the present invention.

[0029] The markings in the attached diagram are as follows: 1-Machine tool, 2-Support frame, 3-Rotating frame, 4-First connecting rod, 5-First motor, 6-First drive wheel, 7-First driven wheel, 8-Sliding block, 9-First electric push rod, 10-First connecting block, 11-First fixed frame, 12-Rotating plate, 13-Connecting shell, 14-Airbag, 15-Air pump, 16-First rotating rod, 17-Second rotating rod, 18-Second motor, 19-Exhaust pipe, 20-First slider, 21-First elastic element, 22-First fixed pipe, 23-Sliding rod, 24-Second slider, 25-First sliding plate, 26-Second elastic element, 27-Flat pressure. 28-Second slide plate, 29-Second electric push rod, 31-Second connecting block, 32-Third slider, 33-Third elastic element, 34-Connecting frame, 35-Fourth slider, 36-Connecting plate, 37-Second fixing tube, 38-Push plug, 39-Rack, 40-Second connecting rod, 41-Third motor, 42-Second drive wheel, 43-Third rotating rod, 44-Second driven wheel, 45-Gear, 46-Second fixing frame, 47-Third slide plate, 48-Support plate, 49-First fixing block, 50-Extrusion block, 51-Third electric push rod, 52-Fourth electric push rod, 53-Second fixing block. Detailed Implementation

[0030] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0031] Example 1: A polishing and grinding machine for thermos cups, such as Figures 1-6As shown, the machine tool includes a machine tool 1, on which a control panel is mounted. A support frame 2 is fixedly connected to the upper side of the machine tool 1. The following descriptions of the components are in sets of two, used for polishing the inner and outer sides of the thermos cup. The description below uses the left set as an example, and the left set is used for polishing the outer wall of the thermos cup. A rotating frame 3 is rotatably connected to the upper side of the machine tool 1, supporting the thermos cup. The machine tool 1 has a first connecting rod 4, and a first motor 5 electrically connected to the control panel is mounted at the lower end of the first connecting rod 4. A first drive wheel 6, which is frustum-shaped, is fixedly connected to the output shaft of the first motor 5. A first driven wheel 7 is fixedly connected to the rotating frame 3. The side of the first drive wheel 6 is parallel to the side of the first driven wheel 7, and the two are driven by friction. A sliding block 8 is mounted on the upper side of the support frame 2, and a component connected to the control panel is mounted on the rear side of the sliding block 8. The first electric push rod 9 is electrically connected to the panel. The lower end of the telescopic part of the first electric push rod 9 is fixedly connected to the first connecting block 10. The front side of the first connecting block 10 is fixedly connected to the first fixing frame 11. Two rotating plates 12 are symmetrically distributed vertically and vertically connected inside the first fixing frame 11. A connecting shell 13 is fixedly connected between the two rotating plates 12. An airbag 14 is fixedly connected to the outside of the connecting shell 13. The airbag 14 is located between the two rotating plates 12. The two rotating plates 12 are used to limit the expansion and deformation of the airbag 14. The connecting shell 13 is connected to the airbag 14. The outside of the airbag 14 is detachably wrapped with abrasive paper. The abrasive paper is sponge abrasive paper. An air pump 15 electrically connected to the control panel is installed on the upper side of the first fixing frame 11. The air pump 15 is used to pump air into the airbag 14 to inflate the airbag 14. The air outlet of the air pump 15 is connected and cooperates with the connecting shell 13.

[0032] A driving component is provided on the first connecting block 10. The driving component is used to rotate the airbag 14. The driving component includes a first rotating rod 16, which is rotatably connected to the center of the first fixed frame 11. The first rotating rod 16 is fixedly connected to the connecting shell 13. A second rotating rod 17 is rotatably connected to the first connecting block 10. Both the second rotating rod 17 and the first rotating rod 16 are fixedly connected to bevel gears, and the bevel gears on the two are meshed with each other. A second motor 18 electrically connected to the control panel is installed on the first connecting block 10. The output shaft of the second motor 18 is fixedly connected to the second rotating rod 17.

[0033] A pressure balancing component is provided on the connecting shell 13. The pressure balancing component is used to maintain the air pressure inside the airbag 14. The pressure balancing component includes an exhaust pipe 19, which is fixedly connected to the connecting shell 13 and communicates with the airbag 14. The exhaust pipe 19 is fixedly connected to the adjacent rotating plate 12, and the air outlet of the exhaust pipe 19 passes through the adjacent rotating plate 12. A first slider 20 is slidably connected inside the exhaust pipe 19. A first elastic element 21 is fixedly connected between the first slider 20 and the exhaust pipe 19. The first elastic element 21 is a spring. The diameter of the first slider 20 is larger than the width of the air outlet of the exhaust pipe 19.

[0034] For insulated cups with micro-protrusions on the surface, in order to avoid a significant increase in pressure on the micro-protrusions and polishing wheel due to direct contact between the polishing wheel and the micro-protrusions, which could lead to deformation of the insulated cup and a reduction in the service life of the polishing wheel, the present invention is implemented through the following steps, the specific steps of which are as follows:

[0035] When polishing a thermos cup is required, the staff fixes the thermos cup on the rotating frame 3. Then, the staff starts the air pump 15 through the control panel. The air pump 15 works to introduce gas into the connecting shell 13. The gas in the connecting shell 13 enters the air bag 14. The air bag 14 expands and moves the friction sandpaper on its outer side outward until the friction sandpaper on its outer side contacts the outer wall of the thermos cup. At this point, the air bag 14 stops expanding.

[0036] During the process of the air pump 15 introducing gas into the airbag 14, the gas entering the airbag 14 impacts the first slider 20. When the friction paper on the outside of the airbag 14 has not yet contacted the outer wall of the thermos, the pressure of the gas inside the airbag 14 is insufficient to compress the adjacent first elastic element 21. Until the airbag 14 is about to expand to the point where the friction paper on its outside contacts the outer wall of the thermos, the pressure of the gas introduced into the airbag 14 begins to impact the movement of the first slider 20. The first slider 20 moves and compresses the adjacent first elastic element 21. Until the airbag 14 expands to the point where the friction paper on its outside contacts the outer wall of the thermos, the first slider 20 moves to the point where it no longer blocks the exhaust port on the lower side of the exhaust pipe 19. The gas introduced into the airbag 14 by the air pump 15 is discharged through the exhaust pipe 19, and the amount of gas introduced into the airbag 14 is consistent with the amount discharged by the exhaust pipe 19, thus maintaining the air pressure inside the airbag 14.

[0037] When the first slider 20 moves to the point where it no longer blocks the exhaust port on the lower side of the exhaust pipe 19, the staff starts the first motor 5 through the control panel. The output shaft of the first motor 5 drives the rotating frame 3 to rotate through the first drive wheel 6 and the first driven wheel 7. The rotating frame 3 drives the thermos cup on it to rotate. The thermos cup is polished by the friction sandpaper on the outside of the airbag 14 as it rotates.

[0038] When the first motor 5 starts working, the staff simultaneously starts the second motor 18 and the first electric push rod 9 through the control panel. The output shaft of the second motor 18 drives the second rotating rod 17 to rotate. The second rotating rod 17 drives the first rotating rod 16 to rotate through the bevel gear set. The first rotating rod 16 drives the connecting shell 13 to rotate. The connecting shell 13 drives the airbag 14 and the two rotating plates 12 to rotate. The airbag 14 drives the friction sandpaper on its outer side to rotate and polish the outer wall of the thermos cup. At the same time, the rotating airbag 14 makes the friction sandpaper on its outer side evenly contact the outer wall of the thermos cup. The first electric push rod 9 works so that its telescopic end extends downward. The telescopic end of the first electric push rod 9 drives the first connecting block 10 to move downward. The first connecting block 10 drives the parts on it to move downward synchronously. In this way, the outer wall of the thermos cup is fully polished.

[0039] During the process of sanding the outer wall of the thermos cup with the friction sandpaper on the outer wall of the airbag 14, if there are micro-protrusions on the outer wall of the thermos cup being sanded, and the friction sandpaper on the outer wall of the airbag 14 comes into contact with the micro-protrusions on the outer wall of the thermos cup, the airbag 14 is deformed under the squeezing action of the micro-protrusions on the outer wall of the thermos cup, and the pressure of the gas inside the airbag 14 begins to rise sharply. The first slider 20 starts to move again, and the first elastic element 21 is further compressed. The movement of the first slider 20 further increases the opening area of ​​the exhaust port on the lower side of the exhaust pipe 19, thus reducing the speed at which the air pump 15 introduces gas into the airbag 14. By reducing the speed at which the gas is discharged from the exhaust pipe 19, the pressure of the gas inside the airbag 14 is lowered, keeping it at the level used for normal polishing of the thermos. This ensures that when the friction sandpaper on the outer wall of the airbag 14 polishes the outer wall of the thermos, the pressure on all parts of the outer wall remains constant, thus protecting the friction sandpaper on the outer wall of the airbag 14. This prevents the polishing wheel from being overused and its lifespan reduced when there are micro-protrusions on the outer wall of the thermos being polished, as the polishing wheel would be squeezed by these micro-protrusions.

[0040] When polishing the micro protrusions on the outer wall of the thermos, as the micro protrusions on the outer wall of the thermos gradually decrease, under the action of the first elastic element 21, the first slider 20 begins to reset, reducing the opening area of ​​the exhaust port on the lower side of the exhaust pipe 19 and reducing the speed at which the exhaust pipe 19 discharges gas. At this time, since the speed at which the air pump 15 introduces gas into the air bag 14 is constant, the air bag 14 begins to expand and reset, thus keeping the pressure of the gas in the air bag 14 constant until the first slider 20 resets to the point where the amount of gas introduced into the air bag 14 is the same as the amount discharged from the exhaust pipe 19 (at this point, it means that the micro protrusions on the outer wall of the thermos have been polished away), the air bag 14 expands and resets to the normal state of polishing the thermos.

[0041] Once the outer wall of the thermos cup has been completely polished, the staff will turn off the first motor 5, the second motor 18 and the first electric push rod 9 through the control panel, and control the extension end of the first electric push rod 9 to reset through the control panel. Then the staff will remove the thermos cup placed on the rotating frame 3 and place a new thermos cup on the rotating frame 3, and then repeat the above process.

[0042] In this embodiment, the machine tool 1 and the first connecting rod 4 are fixedly connected to the support frame 2 and the sliding block 8. However, this is only in this embodiment. In other embodiments, the machine tool 1 and the first connecting rod 4 can be connected to the support frame 2 and the sliding block 8 in other ways, such as sliding connection. See the specific description in other embodiments for details.

[0043] Example 2: Based on Example 1, as follows Figures 7-10 As shown, it also includes a diameter-adapting mechanism, which is mounted on the support frame 2. The diameter-adapting mechanism is used to adapt to the diameter of various parts of the thermos cup. The diameter-adapting mechanism includes a first fixed tube 22, which is fixed to the upper side of the support frame 2. A sliding rod 23 is slidably connected to the right side of the first fixed tube 22, and the right end of the sliding rod 23 is fixedly connected to a sliding block 8. The sliding block 8 is slidably connected to the support frame 2. A second slider 24 is slidably connected to the left side of the first fixed tube 22. A first sliding plate 25 is fixedly connected to the left side of the first fixed tube 22. The second slider 24 is located to the right of the first sliding plate 25. A second elastic element 26, which is a spring, connects the second slider 24 and the first sliding plate 25. A flat pressure shell 27 is fixedly connected to the upper side of the support frame 2. The flat pressure shell 27 has two connecting points with the first fixed tube 22. The pipe has a check valve installed in both connecting pipes. The upper check valve is used to prevent the hydraulic oil in the flat pressure shell 27 from returning to the first fixed pipe 22, and the lower check valve is used to prevent the hydraulic oil in the first fixed pipe 22 from returning to the flat pressure shell 27. The second slider 24 is provided with a T-shaped oil passage. Both connecting pipes are connected and cooperate with the T-shaped oil passage in the second slider 24. The upper side of the flat pressure shell 27 is provided with a vent hole, which is used to balance the pressure inside the flat pressure shell 27. The second slide plate 28 is slidably connected inside the flat pressure shell 27. The second slide plate 28 is located on the upper side of the connection between the flat pressure shell 27 and the two connecting pipes. The upper side of the support frame 2 is fixed with a second electric push rod 29 that is electrically connected to the control panel. When the extension end of the second electric push rod 29 contacts the sliding block 8, the extension end of the second electric push rod 29 moves to the right, causing the sliding block 8 to move to the right and reset.

[0044] The first connecting block 10 is provided with a diameter-adapting component, which is used to adjust the rotation speed of the rotating frame 3. The diameter-adapting component includes a second connecting block 31, which is fixed to the left side of the rear side of the support frame 2. A third slider 32 is slidably connected to the right side of the second connecting block 31. The third slider 32 is fixed to the first connecting rod 4, which is slidably connected to the machine tool 1. The third slider 32 is provided with an inclined slide groove, the upper part of which is inclined to the left. A third elastic element 33, which is a tension spring, is connected between the second connecting block 31 and the third slider 32. A connecting frame 34 is fixed to the left side of the first connecting block 10. A vertical slide groove is provided on the connecting frame 34. A fourth slider 35 is slidably connected in the vertical slide groove of the connecting frame 34. The fourth slider 35 is slidably connected to the second connecting block 31, and simultaneously slides in the inclined slide groove on the third slider 32.

[0045] During the polishing process of a thermos, if the diameter of the thermos is inconsistent in different parts, the areas with larger diameters are prone to over-polishing by the polishing wheel. Therefore, to adapt to the shape of the thermos, the following steps are taken to protect it. The specific operating steps are as follows:

[0046] During the process of sanding the outer wall of the thermos cup with abrasive paper on the outer wall of the airbag 14, when the airbag 14 moves to the diameter change point on the outer side of the thermos cup, under the squeezing action of the outer wall of the thermos cup, the airbag 14 repeats the steps in Embodiment 1 to deform until the first elastic element 21 can no longer be compressed (i.e., the first elastic element 21 is compressed to its limit). Under the squeezing action of the outer wall of the thermos cup, the airbag 14 moves to the left through the connecting shell 13, the two rotating plates 12, the first fixed frame 11 and the first connecting block 10. The first connecting block 10 drives the parts on it and the first electric push rod 9 to move to the left synchronously. The first electric push rod 9 drives the sliding rod 23 to move to the left synchronously through the sliding block 8. 3. The hydraulic oil in the first fixed tube 22 is squeezed to the left, and the second slider 24 is moved to the left through the hydraulic oil. The second elastic element 26 is compressed. After the second slider 24 moves slightly to the left, its T-shaped oil passage is connected to the connecting pipe on the upper side of the first fixed tube 22. Then, as the sliding rod 23 moves to the left, the hydraulic oil in the first fixed tube 22 enters the flat pressure shell 27 through the T-shaped oil passage and the connecting pipe on the upper side. The increase of hydraulic oil in the flat pressure shell 27 causes the second sliding plate 28 to move upward. In this way, when the airbag 14 is completely squeezed and deformed, the airbag 14 is moved to adapt to the shape of the outer wall of the thermos cup. In the above process, the pressure of the gas in the airbag 14 is always kept constant.

[0047] When the thermos cup is polished or the airbag 14 encounters a smaller diameter area, the airbag 14 first deforms and resets. After the airbag 14 deforms and resets, the staff activates the second electric push rod 29 through the control panel. The telescopic end of the second electric push rod 29 drives the sliding block 8 to move to the right and reset. The sliding block 8 drives the sliding rod 23 to move to the right and reset. A negative pressure is generated in the first fixed tube 22. At this time, under the action of the second elastic element 26, the second slider 24 moves slightly to the right so that its T-shaped oil passage is no longer connected to the connecting pipe on the upper side of the first fixed tube 22. When the T-shaped oil passage on the second slider 24 is no longer connected to the connecting pipe on the upper side of the first fixed tube 22, the T-shaped oil passage on the second slider 24 is connected to the connecting pipe on the lower side of the first fixed tube 22. At this time, as the sliding rod 23 moves to the right and resets, the hydraulic oil in the flat pressure shell 27 flows back to the first fixed tube 22 through the lower connecting pipe and the T-shaped oil passage on the second slider 24. The second slide plate 28 moves downward and resets.

[0048] During the leftward movement of the first connecting block 10, the first connecting block 10 drives the fourth slider 35 to move to the left via the connecting frame 34. The leftward movement of the fourth slider 35 compresses the third slider 32 to move downward, stretching the third elastic element 33. The third slider 32 drives the first connecting rod 4 to move downward, and the first connecting rod 4 drives the first drive wheel 6 to move downward via the output shaft of the first motor 5. The diameter of the contact point between the first drive wheel 6 and the first driven wheel 7 begins to decrease, reducing the rotation speed of the rotating frame 3 and thus reducing the rotation speed of the thermos cup. This ensures that the thermos cup is polished evenly, avoiding over-polishing of the diameter-changing part of the thermos cup when polishing it because the rotation speed remains constant, due to the change in the diameter of the thermos cup.

[0049] Similarly, during the process of the first connecting block 10 moving to the right, the first connecting block 10 drives the fourth slider 35 to move to the right through the connecting frame 34. The fourth slider 35 moves to the right and presses the third slider 32 to move upward. The third elastic element 33 resets, and the third slider 32 drives the first connecting rod 4 to move upward and reset. The first connecting rod 4 drives the first drive wheel 6 to move upward and reset through the output shaft of the first motor 5.

[0050] Example 3: Based on Example 2, such as Figure 11 and 12As shown, it also includes a polishing liquid spraying component, which is mounted on the first connecting block 10. The polishing liquid spraying component is used to spray polishing liquid onto the thermos cup. The polishing liquid spraying component includes a connecting plate 36, which is fixed to the lower rear side of the first connecting block 10. A second fixing tube 37 is detachably connected to the front side of the connecting plate 36. The second fixing tube 37 stores polishing liquid. A nozzle is fixedly connected to and communicates with the front side of the second fixing tube 37. The nozzle is used to spray polishing liquid onto the thermos cup. A push plug 38 is slidably connected to the rear part of the second fixing tube 37. A rack 39 is fixedly connected to the rear side of the push plug 38. The rack 39 is slidably connected to the connecting plate 36. Next, a second connecting rod 40 is slidably connected to the right side of the second connecting block 31. The second connecting rod 40 is slidably connected to the connecting plate 36. A third motor 41 electrically connected to the control panel is installed on the second connecting rod 40. The third motor 41 is a geared motor. A second drive wheel 42 is fixedly connected to the output shaft of the third motor 41. The second drive wheel 42 is frustoconical. A third rotating rod 43 is rotatably connected to the first connecting block 10. A second driven wheel 44 is fixedly connected to the third rotating rod 43. The side of the second drive wheel 42 is parallel to the side of the second driven wheel 44, and the two are driven by friction. A gear 45 meshing with the rack 39 is fixedly connected to the third rotating rod 43.

[0051] When the second motor 18 is working, the staff simultaneously starts the third motor 41 through the control panel. The output shaft of the third motor 41 drives the second driven wheel 44 to rotate through the second drive wheel 42. The second driven wheel 44 drives the gear 45 to rotate through the third rotating rod 43. The gear 45 drives the plug 38 to move forward through the rack 39. The push of the plug 38 forward squeezes the polishing liquid in the second fixed tube 37. The polishing liquid is sprayed from the nozzle on the front side of the second fixed tube 37 to the position of the thermos cup being polished, thereby enhancing the polishing effect.

[0052] During the downward movement of the first connecting block 10 driven by the telescopic end of the first electric push rod 9, the first connecting block 10 drives the second connecting rod 40 downward through the connecting plate 36. The second connecting rod 40 drives the parts on it to move downward synchronously. During the leftward movement of the first connecting block 10 driven by the telescopic end of the first electric push rod 9, the first connecting block 10 drives the connecting plate 36 to move to the left. The connecting plate 36 drives the third rotating rod 43 to move to the left. The third rotating rod 43 drives the second driven wheel 44 to move to the left. The diameter at the contact point between the second driving wheel 42 and the second driven wheel 44 begins to increase, which increases the rotation speed of the third rotating rod 43, thereby increasing the forward movement speed of the push plug 38. This, in turn, increases the amount of polishing liquid sprayed by the nozzle on the front side of the second fixed tube 37 per unit time. In this way, polishing liquid is evenly sprayed onto the diameter change area of ​​the thermos cup, avoiding a decrease in the amount of polishing liquid sprayed per unit area at the diameter change area of ​​the thermos cup due to the increased diameter of the thermos cup, which would affect the polishing effect of the thermos cup.

[0053] When the polishing fluid in the second fixing tube 37 is used up, the staff can remove the second fixing tube 37, fill the second fixing tube 37 with polishing fluid, and then install the second fixing tube 37 on the connecting plate 36.

[0054] Example 4: Based on Example 3, such as Figure 3 and Figure 13 As shown, it also includes a thermos cup fixing mechanism, which is mounted on the machine tool 1. The thermos cup fixing mechanism is used to fix the thermos cup being polished. The thermos cup fixing mechanism includes a second fixing frame 46 rotatably connected to the rotating frame 3. The second fixing frame 46 is fixed to the upper side of the machine tool 1. The rotating frame 3 is slidably connected to a third sliding plate 47, which is located above the second fixing frame 46. Four circumferentially distributed support plates 48 are fixed to the upper side of the second fixing frame 46. All four support plates 48 pass through the third sliding plate 47. A first fixing block 49 is rotatably connected to the upper end of the support plates 48. The first fixing block 49 is used to center the thermos cup, and a space is provided between the two. There is a torsion spring. Four circumferentially distributed extrusion blocks 50 are fixedly connected to the upper side of the third slide plate 47. An inclined surface is provided on the upper side of the extrusion block 50. The extrusion block 50 extrudes the adjacent first fixed block 49 through its inclined surface, causing the first fixed block 49 to rotate and fix the thermos cup. A third electric push rod 51 electrically connected to the control panel is installed on the upper side of the machine tool 1. The telescopic end of the third electric push rod 51 is fixedly connected to the third slide plate 47. A fourth electric push rod 52 electrically connected to the control panel is installed on the support frame 2. The telescopic end of the fourth electric push rod 52 is rotatably connected to the second fixed block 53. The central axis of the second fixed block 53 is on the same straight line as the central axis of the rotating frame 3.

[0055] To prevent the thermos from being improperly centered during the polishing process, thus affecting the polishing effect, after placing the thermos on the rotating frame 3, the operator activates the third electric push rod 51 via the control panel. The telescopic end of the third electric push rod 51 moves the third sliding plate 47 upward, which in turn moves the four pressing blocks 50 on it upward. The pressing blocks 50 press the adjacent first fixing blocks 49, causing the four first fixing blocks 49 to rotate towards the center of the third sliding plate 47 until the opposing sides of the four first fixing blocks 49 are in contact with the thermos. At this point, the central axis of the thermos coincides with the central axis of the rotating frame 3. The operator then proceeds to... The control panel controls the retraction end of the third electric push rod 51 to return to its original position. The retraction end of the third electric push rod 51 drives the third slide plate 47 to move downward. The third slide plate 47 drives the four pressing blocks 50 on it to move downward. The pressing blocks 50 no longer press the adjacent first fixed blocks 49 when they move downward. At this time, under the action of gravity, the four first fixed blocks 49 rotate away from the center of the third slide plate 47 to return to their original position. Then, the staff starts the fourth electric push rod 52 through the control panel. The retraction end of the fourth electric push rod 52 drives the second fixed block 53 to move downward and press against the thermos cup. This ensures that the central axis of the thermos cup coincides with the central axis of the rotating frame 3 and the second fixed block 53.

[0056] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the invention.

Claims

1. A polishing and grinding machine for thermos cups, comprising a machine tool (1), a support frame (2) fixedly connected to the upper side of the machine tool (1), a rotating frame (3) rotatably connected to the upper side of the machine tool (1), a first connecting rod (4) provided on the machine tool (1), a first motor (5) mounted on the first connecting rod (4), a first drive wheel (6) fixedly connected to the output shaft of the first motor (5), a first driven wheel (7) fixedly connected to the rotating frame (3) and engaging with the first drive wheel (6), a sliding block (8) provided on the upper side of the support frame (2), a first electric push rod (9) mounted on the sliding block (8), a first connecting block (10) fixedly connected to the telescopic end of the first electric push rod (9), and a first fixing frame (11) fixedly connected to the first connecting block (10), characterized in that: It also includes symmetrically distributed rotating plates (12), each of which is rotatably connected to the first fixed frame (11). A connecting shell (13) is fixed between the symmetrically distributed rotating plates (12). An airbag (14) located between the symmetrically distributed rotating plates (12) is fixed to the outside of the connecting shell (13), and the connecting shell (13) communicates with the airbag (14). The outside of the airbag (14) is detachably wrapped with abrasive paper. An air pump (15) is installed on the upper side of the first fixed frame (11). The air outlet of the air pump (15) communicates with the connecting shell (13). A driving component for rotating the airbag (14) is provided on the first connecting block (10), and an air pressure balancing component for maintaining the air pressure inside the airbag (14) is provided on the connecting shell (13). The air pressure balancing component includes an exhaust pipe (19), which is fixedly connected to the connecting shell (13). The exhaust pipe (19) is connected to the airbag (14). The exhaust pipe (19) is fixedly connected to the adjacent rotating plate (12), and the air outlet of the exhaust pipe (19) passes through the adjacent rotating plate (12). A first slider (20) is slidably connected inside the exhaust pipe (19). A first elastic element (21) is fixedly connected between the first slider (20) and the exhaust pipe (19). The diameter of the first slider (20) is greater than the width of the exhaust port of the exhaust pipe (19).

2. The polishing and grinding machine for thermos cups according to claim 1, characterized in that: The driving component includes a first rotating rod (16), which is rotatably connected to the first fixed frame (11). The first rotating rod (16) is fixedly connected to the connecting shell (13). The first connecting block (10) is rotatably connected to a second rotating rod (17) which is driven by a bevel gear set to the first rotating rod (16). The first connecting block (10) is equipped with a second motor (18), and the output shaft of the second motor (18) is fixedly connected to the second rotating rod (17).

3. The polishing and grinding machine for thermos cups according to claim 1, characterized in that: It also includes a diameter-adapting mechanism, which is mounted on the support frame (2). The diameter-adapting mechanism is used to adapt to the diameter of various parts of the thermos cup. The diameter-adapting mechanism includes a first fixed tube (22), which is fixed to the upper side of the support frame (2). The first fixed tube (22) is slidably connected to a sliding rod (23). The end of the sliding rod (23) away from the first fixed tube (22) is fixedly connected to the sliding block (8). The sliding block (8) is slidably connected to the support frame (2). A second slider (24) is slidably connected inside the first fixed tube (22). A first sliding plate (25) is fixedly connected inside the first fixed tube (22). The second slider (24) is slidably connected to the sliding block (8). 4) A second elastic element (26) is connected between the support frame (2) and the first slide plate (25). A flat pressure shell (27) is fixedly connected to the upper side of the support frame (2). Two connecting pipes are connected between the flat pressure shell (27) and the first fixed pipe (22), and both connecting pipes are connected to the second slider (24). A vent hole is provided on the upper side of the flat pressure shell (27). A second slide plate (28) is slidably connected inside the flat pressure shell (27). A second electric push rod (29) is fixedly connected to the upper side of the support frame (2). The telescopic end of the second electric push rod (29) is pressed and engaged with the sliding block (8). A variable diameter adaptation component for adjusting the rotation speed of the rotating frame (3) is provided on the first connecting block (10).

4. A polishing and grinding machine for thermos cups according to claim 3, characterized in that: One-way valves are provided in both connecting pipes between the flat pressure shell (27) and the first fixed pipe (22), and the one-way directions of the two one-way valves are opposite.

5. A polishing and grinding machine for thermos cups according to claim 3, characterized in that: The variable diameter adaptation component includes a second connecting block (31), which is fixedly connected to the support frame (2). The second connecting block (31) is slidably connected to a third slider (32). The third slider (32) is fixedly connected to the first connecting rod (4). The first connecting rod (4) is slidably connected to the machine tool (1). A third elastic element (33) is connected between the second connecting block (31) and the third slider (32). The first connecting block (10) is fixedly connected to a connecting frame (34). The connecting frame (34) is slidably connected to a fourth slider (35) that is slidably pressed and engaged with the third slider (32). The fourth slider (35) is slidably connected to the second connecting block (31).

6. A polishing and grinding machine for thermos cups according to claim 5, characterized in that: It also includes a polishing liquid spraying component, which is disposed on the first connecting block (10). The polishing liquid spraying component is used to spray polishing liquid onto the thermos cup. The polishing liquid spraying component includes a connecting plate (36), which is fixedly connected to the lower side of the first connecting block (10). The connecting plate (36) is detachably connected to a second fixing tube (37). The second fixing tube (37) is fixedly connected to and communicates with a nozzle on the side near the airbag (14). The second fixing tube (37) is slidably connected to a push plug (38), which is fixedly connected to the connecting... The plate (36) is slidably connected to the rack (39), the second connecting block (31) is slidably connected to the second connecting rod (40) which is slidably connected to the connecting plate (36), the second connecting rod (40) is equipped with a third motor (41), the output shaft of the third motor (41) is fixedly connected to a second drive wheel (42), the first connecting block (10) is rotatably connected to a third rotating rod (43), the third rotating rod (43) is fixedly connected to a second driven wheel (44) which is in transmission cooperation with the second drive wheel (42), and the third rotating rod (43) is fixedly connected to a gear (45) that meshes with the rack (39).

7. A polishing and grinding machine for thermos cups according to claim 1, characterized in that: It also includes a thermos cup fixing mechanism, which is mounted on the machine tool (1). The thermos cup fixing mechanism is used to fix the polished thermos cup. The thermos cup fixing mechanism includes a second fixing frame (46), which is fixed to the upper side of the machine tool (1). The second fixing frame (46) is rotatably connected to the rotating frame (3). The rotating frame (3) is slidably connected to a third sliding plate (47). A circumferentially distributed support plate (48) is fixed to the upper side of the second fixing frame (46). The circumferentially distributed support plates (48) all penetrate the third sliding plate (47). The upper end of the support plate (48) is rotatably connected to a... The first fixed block (49) is provided with a torsion spring between them. The upper side of the third slide plate (47) is fixed with a circumferentially distributed extrusion block (50). The extrusion block (50) is extruded and engaged with the adjacent first fixed block (49). The upper side of the machine tool (1) is equipped with a third electric push rod (51). The telescopic end of the third electric push rod (51) is fixed with the third slide plate (47). The support frame (2) is equipped with a fourth electric push rod (52). The telescopic end of the fourth electric push rod (52) is rotatably connected to a second fixed block (53). The central axis of the second fixed block (53) is on the same straight line as the central axis of the rotating frame (3).

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