A drum opening device and opening method for a washing machine

Abstract

The present invention provides a drum opening device and an opening method for a washing machine, which relates to the technical field of washing machine manufacturing. The drum opening device of the washing machine includes a bearing base, on the top of which a first lateral support plate and a second lateral support plate are fixedly installed. On the top of the second lateral support plate, a transverse support platform is fixedly installed. At the bottom of the transverse support platform, a load-bearing station plate is fixedly installed. A vertical threaded sleeve is rotatably installed on the transverse support platform, and a lifting screw rod is installed in the vertical threaded sleeve by internal threads. At the bottom end of the lifting screw rod, a first mounting frame is fixedly installed. In the first mounting frame, a one-way adjusting lead screw is rotatably installed. A first linkage plate is installed on the one-way adjusting lead screw by threads. At the bottom of the first linkage plate, a first drilling unit is fixedly installed. The present invention has the advantages of being able to simultaneously open holes in the barrel body and the barrel bottom, thereby improving the hole opening efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machine manufacturing, and particularly relates to a drum opening device and an opening method for a washing machine. Background Art

[0002] A washing machine is a tool for washing clothes. It mainly consists of a stainless-steel inner barrel, a mechanical program controller, a housing protected by phosphating, electrophoresis, and spraying, and several heavy cement blocks used to balance the huge centrifugal force generated during the rotation of the drum for repeated movement. Together with the common action of washing powder and water, the clothes are washed clean. During the production and manufacturing process of the washing machine, in order to ensure that the stainless-steel inner barrel has good water permeability, several water-permeable holes are generally opened on its barrel body and the bottom of the barrel, so that the cleaning liquid can enter the barrel and at the same time be thrown out after the cleaning is completed. Most of the commonly used opening devices use a milling machine in cooperation with a drill bit or a special opening tool for opening holes, and good opening effects can be achieved.

[0003] However, during the process of opening holes in the inner barrel, since holes need to be opened on both the barrel body and the bottom of the barrel, it is necessary to first open holes on the barrel body. After the barrel body is opened, the inner barrel needs to be turned over to open holes on the bottom of the barrel, which greatly reduces the opening efficiency. After the opening is completed, the inner barrel needs to be removed again and the next inner barrel to be opened needs to be reinstalled to continue the opening work. The entire opening process is cumbersome, resulting in low opening efficiency.

[0004] Therefore, it is necessary to provide a new drum opening device and an opening method for a washing machine to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a drum opening device and an opening method for a washing machine that can simultaneously open holes on the barrel body and the bottom of the barrel to improve the opening efficiency.

[0006] To solve the above technical problems, the drum opening device of the washing machine provided by the present invention includes a bearing base. A first lateral support plate and a second lateral support plate are fixedly installed on the top of the bearing base. A transverse support platform is fixedly installed on the top of the second lateral support plate. A load-bearing station plate is fixedly installed at the bottom of the transverse support platform. A vertical threaded sleeve is rotatably installed on the transverse support platform. A lifting screw rod is installed in the vertical threaded sleeve by internal thread. The bottom end of the lifting screw rod is fixedly installed with a first mounting frame. A one-way adjusting lead screw is rotatably installed in the first mounting frame. A first linkage plate is installed on the one-way adjusting lead screw by thread. A first drilling unit is fixedly installed at the bottom of the first linkage plate. A transverse threaded sleeve is rotatably installed on the load-bearing station plate. A transverse movement screw rod is installed in the transverse threaded sleeve by internal thread. One end of the transverse movement screw rod is fixedly installed with a first connection frame. A first cylinder is fixedly installed in the first connection frame. The output shaft of the first cylinder extends outside the first connection frame and is movably connected to the first connection frame. A second mounting frame is fixedly installed on the output shaft of the first cylinder. A bidirectional adjusting lead screw is rotatably installed in the second mounting frame. Two second linkage plates are installed on the bidirectional adjusting lead screw by thread. A second drilling unit is fixedly installed on one side of each of the two second linkage plates. A driving connecting rod is rotatably installed on the transverse support platform. A driven connecting rod is arranged above the transverse support platform. First bevel gears are fixedly sleeved on both the driving connecting rod and the driven connecting rod. The two first bevel gears are meshed with each other. Second bevel gears are fixedly sleeved on both the driving connecting rod and the transverse threaded sleeve. The two second bevel gears are meshed with each other. Third bevel gears are sleeved on both the driven connecting rod and the vertical threaded sleeve. The two third bevel gears are meshed with each other.

[0007] Preferably, a folding plate is fixedly installed on the top of the transverse support platform. The driving connecting rod penetrates through the folding plate and is rotatably connected to the folding plate. A first servo motor is fixedly installed on the top of the folding plate. The output shaft of the first servo motor is fixedly connected to the top end of the driving connecting rod.

[0008] Preferably, a second servo motor is fixedly installed on the outer wall of one side of the first mounting frame. The output shaft of the second servo motor is fixedly connected to one end of the one-way adjusting lead screw. A third servo motor is fixedly installed on the top of the second mounting frame. The output shaft of the third servo motor is fixedly connected to the top end of the bidirectional adjusting lead screw.

[0009] Preferably, the first bevel gear, the second bevel gear and the third bevel gear are all of the same model.

[0010] Preferably, a connecting rotating shaft is rotatably installed on the first side support plate. One end of the connecting rotating shaft close to the second side support plate is fixedly installed with an adapter plate. Second connecting frames are fixedly installed on both the top and bottom of the adapter plate. Drive shafts are rotatably installed on one side of each of the two second connecting frames away from the first side support plate. Fourth servo motors are fixedly installed in each of the two second connecting frames. Output shafts of the two fourth servo motors are fixedly connected to ends of the two drive shafts respectively. Clamping mechanisms are arranged at one ends of the two drive shafts away from the first side support plate for clamping and fixing the drum to be drilled.

[0011] Preferably, any one of the clamping mechanisms includes a U-shaped frame. The U-shaped frame is fixedly installed at the end of the corresponding drive shaft. Second cylinders are fixedly installed on both the top inner wall and the bottom inner wall of the U-shaped frame. Connecting folding strips are fixedly installed on output shafts of the two second cylinders. Arc-shaped clamping pieces are fixedly installed on one side of each of the two connecting folding strips. Stop pieces are fixedly installed on inner walls of the two arc-shaped clamping pieces.

[0012] Preferably, a linkage column is fixedly installed at one end of the connecting rotating shaft away from the second side support plate. A curved chute is formed in the linkage column. A guiding pull rod is slidably installed in the curved chute. Two third cylinders are fixedly installed on one side of the first side support plate away from the second side support plate. Fixed strips are fixedly installed on output shafts of the two third cylinders. The two fixed strips are fixedly connected to the guiding pull rod through columns.

[0013] Preferably, two rodless cylinders are fixedly installed on the top of the bearing base. The same support panel is fixedly installed on sliders of the two rodless cylinders. A fourth cylinder is fixedly installed on the top of the support panel. A pushing block is fixedly installed on the output shaft of the fourth cylinder. A first concave seat is fixedly installed on the top of the pushing block. A first central shaft and a second central shaft are rotatably installed in the first concave seat. A fifth servo motor is fixedly installed on an outer wall of one side of the first concave seat. The output shaft of the fifth servo motor is fixedly connected to one end of the first central shaft. A driving circular gear is fixedly sleeved on the first central shaft. A toothless circular gear is fixedly sleeved on the second central shaft. The toothless circular gear meshes with the driving circular gear. A support prism is fixedly installed on the toothless circular gear. A second concave seat is fixedly installed on the top of the support prism. Fifth cylinders are fixedly installed on both inner walls of two sides of the second concave seat. V-shaped clamping seats are fixedly installed on output shafts of the two fifth cylinders.

[0014] Preferably, a sixth cylinder is fixedly installed on the side of the second lateral support plate away from the first lateral support plate. A connecting plate is fixedly installed on the output shaft of the sixth cylinder. A placement table and a third mounting bracket are fixedly installed on the side of the connecting plate close to the second lateral support plate. The third mounting bracket is located below the placement table, and both the placement table and the third mounting bracket penetrate through the second lateral support plate and are movably connected to the second lateral support plate. A pushing screw rod is rotatably installed in the third mounting bracket. A sixth servo motor is fixedly installed on the outer wall of one side of the third mounting bracket. The output shaft of the sixth servo motor is fixedly connected to one end of the pushing screw rod. A pushing plate is threadedly installed on the pushing screw rod. The top of the pushing plate penetrates through the placement table and is movably connected to the placement table. A seventh cylinder is fixedly installed at the bottom of the placement table. A clamping plate is fixedly installed on the output shaft of the seventh cylinder. The clamping plate penetrates through the placement table and is slidably connected to the placement table. An extension arm is fixedly installed on the side of the second lateral support plate close to the first lateral support plate. A T-shaped sliding groove is formed in the extension arm. A T-shaped insertion block is slidably installed in the T-shaped sliding groove. The T-shaped insertion block is fixedly connected to the extension arm by a bolt. A waste box is fixedly installed on one side of the T-shaped insertion block. The waste box is located below the second drilling unit. A through groove is formed in the bearing base. A waste vehicle is arranged in the through groove. A belt conveyor unit is arranged on the bearing base. The belt conveyor unit penetrates through the second lateral support plate and is movably connected to the second lateral support plate. The waste vehicle and the belt conveyor unit are respectively located on both sides of the first concave seat.

[0015] The present invention also provides a method for opening holes in a drum of a washing machine, including the following steps:

[0016] S1. Fix the drum: First, place a drum to be opened with holes on the lower arc-shaped clamping pieces in the two clamping mechanisms, so that the two drums are in contact with the corresponding baffle plates. Start the four second cylinders, and use the corresponding two arc-shaped clamping pieces to clamp the two drums.

[0017] S2. Open holes in the cylinder body: Start the first drilling unit and the second drilling unit, then start the first servo motor in the forward direction. The driving link and the driven link rotate simultaneously, the vertical threaded sleeve and the horizontal threaded sleeve start to rotate. On one side, the lifting screw rod starts to descend, and on the other side, the transverse movement screw rod moves towards the drum. When the first drilling unit and the second drilling unit respectively contact the barrel body and the barrel bottom, perform the hole opening operation synchronously.

[0018] S3. Adjust the hole position: Start the first servo motor in the reverse direction, take out the first drilling unit and the second drilling unit. Start the corresponding fourth servo motor in the forward direction, and rotate the clamped drum by a specified angle, thereby adjusting the hole position.

[0019] S4. Replace the drum: Start the output shafts of the two third cylinders to extend. The linkage column drives the connecting rotating shaft to rotate together, causing the two second connecting frames to exchange positions with each other. Then, continue to perform the hole-opening operation on the next drum.

[0020] Compared with the related art, the drum hole-opening device and the hole-opening method of the washing machine provided by the present invention have the following beneficial effects:

[0021] First, through the provided driving link and driven link, and the transmission cooperation of the first bevel gear, the second bevel gear, and the third bevel gear, the first drilling unit and the second drilling unit can operate simultaneously, and while opening holes in the barrel body of the drum, opening holes in the bottom of the drum at the same time. The two can be carried out simultaneously, which can greatly shorten the time for opening holes in the drum and improve the production efficiency of the drum.

[0022] Second, by utilizing the sliding cooperation between the curved chute and the guiding pull rod, every time the guiding pull rod moves horizontally once, the two second connecting frames can alternate positions once. Thus, after one hole-opening is completed, the next drum can be quickly opened, and further improve the work efficiency. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0024] Figure 2 It is a partial front view plane structural diagram of the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0025] Figure 3 It is an assembly schematic diagram of the two second connecting frames in the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0026] Figure 4 It is a connection structural diagram of the connecting rotating shaft and the connecting plate in the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0027] Figure 5 It is a connection structural diagram of the transmission shaft and the C-shaped frame in the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0028] Figure 6 It is a connection structural diagram of the horizontal support platform and the load-bearing station board in the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0029] Figure 7 It is an internal structural diagram of the second mounting bracket in the first embodiment of the drum hole-opening device of the washing machine provided by the present invention;

[0030] Figure 8Schematic diagram of the internal structure of the first mounting bracket in the first embodiment of the drum opening device for the washing machine provided by the present invention;

[0031] Figure 9 Schematic diagram of the structure of the second embodiment of the drum opening device for the washing machine provided by the present invention;

[0032] Figure 10 Schematic diagram of the structure of the second embodiment of the drum opening device for the washing machine provided by the present invention from another perspective;

[0033] Figure 11 Schematic diagram of the connection structure between the bearing base and the second lateral support plate in the second embodiment of the drum opening device for the washing machine provided by the present invention;

[0034] Figure 12 Schematic diagram of the connection structure between the extension arm and the T-shaped insert block in the second embodiment of the drum opening device for the washing machine provided by the present invention;

[0035] Figure 13 Schematic diagram of the connection structure between the first central shaft and the driving circular gear in the second embodiment of the drum opening device for the washing machine provided by the present invention;

[0036] Figure 14 Schematic diagram of the connection structure between the second central shaft and the toothless circular gear in the second embodiment of the drum opening device for the washing machine provided by the present invention;

[0037] Figure 15 Schematic diagram of the connection structure between the pushing lead screw and the pushing plate in the second embodiment of the drum opening device for the washing machine provided by the present invention;

[0038] Figure 16 Schematic diagram of the structure of the placement table in the second embodiment of the drum opening device for the washing machine provided by the present invention.

[0039] Reference numerals in the figure: 1, bearing base; 2, first lateral support plate; 3, second lateral support plate; 4, transverse support platform; 5, load-bearing station board; 6, vertical threaded sleeve; 7, lifting screw rod; 8, first mounting bracket; 9, one-way adjusting lead screw; 10, first linkage plate; 11, first drilling unit; 12, transverse threaded sleeve; 13, transverse movement screw rod; 14, first connection frame; 15, first cylinder; 16, second mounting bracket; 17, two-way adjusting lead screw; 18, second linkage plate; 19, second drilling unit; 20, active connecting rod; 21, driven connecting rod; 22, first bevel gear; 23, second bevel gear; 24, third bevel gear; 25, connecting rotating shaft; 26, connecting plate; 27, second connection frame; 28, transmission shaft; 29, C-shaped frame; 30, second cylinder; 31, connecting folding strip; 32, arc-shaped clamping piece; 33, retaining piece; 34, linkage column; 35, curved chute; 36, third cylinder; 37, fixing strip; 38, guiding pull rod; 39, extension arm; 40, T-shaped insert block; 41, waste box; 42, rodless cylinder; 43, support panel; 44, fourth cylinder; 45, pushing block; 46, first concave seat; 47, first central axis; 48, active circular gear; 49, second central axis; 50, toothless circular gear; 51, support prism; 52, second concave seat; 53, fifth cylinder; 54, V-shaped clamping seat; 55, waste vehicle; 56, belt conveyor unit; 57, sixth cylinder; 58, connecting plate; 59, placing table; 60, third mounting bracket; 61, pushing lead screw; 62, pushing plate; 63, seventh cylinder; 64, clamping plate. Specific implementation mode

[0040] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0041] First embodiment:

[0042] Please refer to Figures 1 - 8, in the first embodiment of the present invention, the drum opening device of the washing machine includes: a bearing base 1, with a first lateral support plate 2 and a second lateral support plate 3 fixed to the top of the bearing base 1. A transverse support platform 4 is fixed to the top of the second lateral support plate 3, and a load-bearing station plate 5 is fixed to the bottom of the transverse support platform 4. A vertical threaded sleeve 6 is rotatably installed on the transverse support platform 4, and a lifting screw rod 7 is installed with internal threads therein. The bottom end of the lifting screw rod 7 is fixed with a first mounting frame 8, and a vertical limiting rod is slidably installed on the transverse support platform 4. The bottom end of the vertical limiting rod is fixed to the first mounting frame 8, and a one-way adjusting lead screw 9 is rotatably installed in the first mounting frame 8. A second servo motor is fixed to the outer wall of one side of the first mounting frame 8, and its output shaft is fixedly connected to one end of the one-way adjusting lead screw 9. A first linkage plate 10 is threadedly installed on the one-way adjusting lead screw 9, and two first limiting slide rods are fixed in the first mounting frame 8. Both of the two first limiting slide rods penetrate through the first linkage plate 10 and are slidably connected thereto. The bottom of the first linkage plate 10 is fixed with a first drilling unit 11. A transverse threaded sleeve 12 is rotatably installed on the load-bearing station plate 5, and a transverse moving screw rod 13 is installed with internal threads therein. One end of the transverse moving screw rod 13 is fixed with a first connecting frame 14, and a transverse limiting rod is slidably installed on the load-bearing station plate 5. One end of the transverse limiting rod is fixed to the first connecting frame 14. A first cylinder 15 is fixed in the first connecting frame 14, and its output shaft extends outside the first connecting frame 14 and is movably connected to the first connecting frame 14. A second mounting frame 16 is fixed to the output shaft of the first cylinder 15. A two-way adjusting lead screw 17 is rotatably installed in the second mounting frame 16, and a third servo motor is fixed to the top of the second mounting frame 16. Its output shaft is fixedly connected to the top end of the two-way adjusting lead screw 17. Two second linkage plates 18 are threadedly installed on the two-way adjusting lead screw 17, and two second limiting slide rods are fixed in the second mounting frame 16. Both of the two second limiting slide rods penetrate through the two second linkage plates 18 and are slidably connected to the two second linkage plates 18. A second drilling unit 19 is fixed to one side of each of the two second linkage plates 18. Both the second drilling unit 19 and the first drilling unit 11 are composed of a motor and a drill bit, and are common drilling components on the market, so no more details will be given here. A driving connecting rod 20 is rotatably installed on the transverse support platform 4, and a folding plate is fixed to the top of the transverse support platform 4. The provided driving connecting rod 20 penetrates through the folding plate and is rotatably connected to the folding plate. A first servo motor is fixed to the top of the folding plate, and its output shaft is fixedly connected to the top end of the driving connecting rod 20. Two mounting blocks are fixed to the top of the transverse support platform 4, and the same driven connecting rod 21 is rotatably installed on the two mounting blocks. First bevel gears 22 are fixedly sleeved on both the driving connecting rod 20 and the driven connecting rod 21, and the two first bevel gears 22 are meshed with each other. Second bevel gears 23 are fixedly sleeved on both the driving connecting rod 20 and the transverse threaded sleeve 12, and the two second bevel gears 23 are meshed with each other. Third bevel gears 24 are sleeved on both the driven connecting rod 21 and the vertical threaded sleeve 6, and the two third bevel gears 24 are meshed with each other. Through the meshing transmission of multiple bevel gears,It is possible to drive the vertical threaded sleeve 6 and the horizontal threaded sleeve 12 to rotate simultaneously only by starting the first servo motor, so that the barrel body and the bottom of the drum can be drilled simultaneously. Moreover, the first bevel gear 22, the second bevel gear 23 and the third bevel gear 24 are all of the same model, which can ensure the same rotational speed.,

[0043] In the above method, in order to clamp and fix the drum to facilitate the hole opening process, a connecting rotating shaft 25 is rotatably installed on the first side support plate 2. One end of the connecting rotating shaft 25 close to the second side support plate 3 is fixed with an adapter plate 26. Second connecting frames 27 are fixed to the top and bottom of the adapter plate 26. Drive shafts 28 are rotatably installed on the sides of the two second connecting frames 27 away from the first side support plate 2. Fourth servo motors are fixed inside the two second connecting frames 27. The output shafts of the two fourth servo motors are respectively fixedly connected to the ends of the two drive shafts 28. Clamping mechanisms are provided at the ends of the two drive shafts 28 away from the first side support plate 2 for clamping and fixing the drum to be drilled. Any one of the clamping mechanisms includes a U-shaped frame 29, which is fixedly installed at the end of the corresponding drive shaft 28. An annular guide rail is fixed on the second connecting frame 27, and two stabilizing blocks are slidably installed on the annular guide rail. One side of each of the two stabilizing blocks is fixed to the U-shaped frame 29, which can ensure the stability of the rotation of the U-shaped frame 29. Second cylinders 30 are fixed to the inner walls of the top and bottom of the U-shaped frame 29. Connecting folding strips 31 are fixed to the output shafts of the two second cylinders 30. Arc-shaped clamping pieces 32 are fixed to one side of the two connecting folding strips 31. Stop pieces 33 are fixed to the inner walls of the two arc-shaped clamping pieces 32. The inner diameter of the arc-shaped clamping piece 32 is the same as the diameter of the drum, which can fit well with the outer wall of the drum, thus achieving a good clamping effect.

[0044] In this method, in order to enable the two second connecting frames 27 to rotate so that they can exchange positions with each other, a linkage column 34 is fixed to the end of the connecting rotating shaft 25 away from the second side support plate 3. A curved chute 35 is provided on the linkage column 34. A guiding pull rod 38 is slidably installed in the curved chute 35. Two third cylinders 36 are fixed to the side of the first side support plate 2 away from the second side support plate 3. Fixed strips 37 are fixed to the output shafts of the two third cylinders 36. The two fixed strips 37 are fixedly connected to the guiding pull rod 38 through columns.

[0045] In this embodiment:

[0046] In the initial state, the output shaft of the first cylinder 15 is in the extended state, and the output shaft of the second cylinder 30 is in the retracted state;

[0047] When the drum needs to be drilled, first place a drum to be drilled on the lower arc-shaped clamping pieces 32 in both groups of clamping mechanisms and make it contact the baffle 33 inside. Then start the four second cylinders 30, and use the corresponding two arc-shaped clamping pieces 32 to clamp the two drums. At this time, the upper drum is located below the first drilling unit 11, and the center of its axis is on the same axis as the centers of the two second drilling units 19. Then, directly start the first drilling unit 11 and the second drilling unit 19, and the drill bits on the two drilling units start to rotate. Immediately, start the first servo motor in the forward direction, and its output shaft drives the active connecting rod 20 to rotate. At this time, due to the meshing of the two first bevel gears 22, the driven connecting rod 21 rotates simultaneously. At the same time, due to the transmission cooperation of the two second bevel gears 23 and the two third bevel gears 24, the vertical threaded sleeve 6 and the horizontal threaded sleeve 12 start to rotate. On one side, the lifting screw rod 7 starts to descend, and on the other side, the transverse movement screw rod 13 moves horizontally towards the drum. When the first drilling unit 11 and the second drilling unit 19 respectively contact the barrel body and the bottom of the barrel, the hole-opening work is carried out simultaneously;

[0048] After each drilling unit has drilled a hole, start the first servo motor in the reverse direction and take out the first drilling unit 11 and the second drilling unit 19. Then, start the corresponding fourth servo motor in the forward direction, and its output shaft drives the corresponding transmission shaft 28 to rotate, so that the clamped drum can be driven to rotate. After rotating a specified angle, turn off the fourth servo motor. Then continue to start the first servo motor in the forward direction, and the hole-opening work is carried out again. After the hole-opening is completed, start the first servo motor in the reverse direction again, and start the fourth servo motor in the forward direction again to rotate the drum by a specified angle for hole-opening. Repeat this process until a full circle of the barrel body and a full circle of the bottom of the barrel are drilled. First, start the second servo motor in the forward direction, and its output shaft drives the one-way adjusting lead screw 9 to rotate, so that the first linkage plate 10 drives the first drilling unit 11 to move horizontally. When the first drilling unit 11 moves a short distance, it is vertically aligned with the part of the barrel body that has not been drilled again. Then start the third servo motor in the forward direction to make the two second linkage plates 18 approach each other, so as to adjust the positions of the two second drilling units 19 and align the two second drilling units 19 with the part of the bottom of the barrel that has not been drilled. Subsequently, continue to carry out the hole-opening work on the drum according to the same operation method as above, and then repeat this process. After each full circle of hole-opening, adjust the positions of the first drilling unit 11 and the second drilling unit 19 until all the holes on the drum are drilled;

[0049] During the hole - opening process, since the number of hole - opening circles at the bottom of the cylinder is less than that of the cylinder body, when all the holes at the bottom of the cylinder are opened, the cylinder body has not completed all the hole - opening work yet. At this time, the output shaft of the first cylinder 15 can be retracted to move the second drilling unit 19 away from the drum. In this way, during the operation of the first servo - motor, only the first drilling unit 11 will contact the cylinder body for hole - opening, and the second drilling unit 19 will not contact the bottom of the cylinder.

[0050] Until all the holes are opened, the output shafts of the two third cylinders 36 are extended. During the extension process, through the cooperation between the curved chute 35 and the guiding pull rod 38, the linkage column 34 drives the connecting rotating shaft 25 to rotate, and then the two second connecting frames 27 rotate. After the guiding pull rod 38 moves to the final position, the two second connecting frames 27 rotate 180°, exchange positions with each other, and then continue to perform the hole - opening work on the next drum.

[0051] On the other side, the output shafts of the corresponding two second cylinders 30 are retracted to release the drum that has been hole - opened, then it can be directly removed, and the next drum to be hole - opened can be fixed.

[0052] During the above - mentioned process, when the transmission shaft 28 rotates to adjust the hole - opening position of the drum, after the fourth servo - motor rotates forward 360°, by starting the fourth servo - motor in reverse and making it rotate backward 360°, this can prevent the cable from getting entangled.

[0053] Compared with the related technology, the drum hole - opening device of the washing machine provided by the present invention has the following beneficial effects:

[0054] First, through the setting of the active connecting rod 20 and the driven connecting rod 21, as well as the transmission cooperation of the first bevel gear 22, the second bevel gear 23, and the third bevel gear 24, the first drilling unit 11 and the second drilling unit 19 can operate simultaneously, and while opening holes in the cylinder body of the drum, they can also open holes in the bottom of the drum at the same time. The two can be carried out simultaneously, which can greatly shorten the hole - opening time of the drum and improve the production efficiency of the drum.

[0055] Second, by using the sliding cooperation between the curved chute 35 and the guiding pull rod 38, every time the guiding pull rod 38 moves horizontally once, the two second connecting frames 27 can alternate positions. Thus, after one hole - opening is completed, the next drum can be quickly hole - opened, which can further improve the work efficiency.

[0056] Second Embodiment:

[0057] Based on the drum opening device of the washing machine provided in the first embodiment of the present application, another drum opening device of the washing machine is proposed in the second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0058] The following further describes the second embodiment of the present invention in conjunction with the drawings and embodiments.

[0059] Please refer to Figures 9 - 16 , the drum opening device of the washing machine further includes two rodless cylinders 42. Both of the two rodless cylinders 42 are fixed on the top of the bearing base 1. A same support panel 43 is fixed on the sliders of the two rodless cylinders 42, and a fourth cylinder 44 is fixed on the top of the support panel 43. A push block 45 is fixed on its output shaft, a first concave seat 46 is fixed on the top of the push block 45, a first central shaft 47 and a second central shaft 49 are rotatably installed therein, and a fifth servo motor is fixed on the outer wall of one side of the first concave seat 46. Its output shaft is fixedly connected to one end of the first central shaft 47. A driving circular gear 48 is fixedly sleeved on the first central shaft 47, a toothless circular gear 50 is fixedly sleeved on the second central shaft 49, and the toothless circular gear 50 meshes with the driving circular gear 48. By controlling the positive and reverse rotation of the output shaft of the fifth servo motor, the toothless circular gear 50 can be driven to rotate forward and backward. A support prism 51 is fixed on the toothless circular gear 50, and a second concave seat 52 is fixed on its top. Fifth cylinders 53 are fixed on the inner walls of both sides of the second concave seat 52. V-shaped clamping seats 54 are fixed on the output shafts of the two fifth cylinders 53, which can reliably clamp the drum.

[0060] In the above method, in order to facilitate people to install the next drum to be drilled in the clamping mechanism, a sixth cylinder 57 is fixed on the side of the second lateral support plate 3 away from the first lateral support plate 2. A connecting plate 58 is fixed on its output shaft. On the side of the connecting plate 58 close to the second lateral support plate 3, a placement table 59 and a third mounting bracket 60 are fixed. The third mounting bracket 60 is located below the placement table 59. Two baffles are fixed on the top of the placement table 59, which can limit the drum to be drilled between the two. Both the placement table 59 and the third mounting bracket 60 penetrate the second lateral support plate 3 and are movably connected to the second lateral support plate 3. This movable connection method is realized by opening a first movable opening on the second lateral support plate 3. A pushing lead screw 61 is rotatably installed in the third mounting bracket 60. A sixth servo motor is fixed on the outer wall of one side of the third mounting bracket 60, and its output shaft is fixedly connected to one end of the pushing lead screw 61. A pushing plate 62 is threadedly installed on the pushing lead screw 61. A long slot is opened on the placement table 59. The pushing plate 62 penetrates the long slot and contacts the inner wall of the long slot. In this way, the pushing plate 62 can move in the long slot, and it can be ensured that the pushing plate 62 can only move linearly and will not deviate. A seventh cylinder 63 is fixed on the bottom of the placement table 59, and a clamping plate 64 is fixed on its output shaft. The clamping plate 64 penetrates the placement table 59 and is slidably connected to the placement table 59. An extension arm 39 is fixed on the side of the second lateral support plate 3 close to the first lateral support plate 2. A T-shaped sliding groove is opened on the extension arm 39. A T-shaped plug 40 is slidably installed in the T-shaped sliding groove. The T-shaped plug 40 is fixedly connected to the extension arm 39 by bolts. A waste box 41 is fixed on one side of the T-shaped plug 40. The waste box 41 is located below the second drilling unit 19, so as to catch the falling metal chips. A through groove is opened on the bearing base 1. A waste vehicle 55 is arranged in the through groove. Through the cooperation of the driving circular gear 48 and the toothless circular gear 50, the remaining metal chips in the drum can be poured into the waste vehicle 55. A common belt conveyor unit 56 on the market is arranged on the bearing base 1. The belt conveyor unit 56 penetrates the second lateral support plate 3 and is movably connected to the second lateral support plate 3. This movable connection method is realized by opening a second movable opening on the second lateral support plate 3. The drum after drilling can be directly placed on the belt conveyor unit 56 and conveyed to the next process. The waste vehicle 55 and the belt conveyor unit 56 are respectively located on both sides of the first concave seat 46.

[0061] In this embodiment:

[0062] Multiple drums to be drilled are placed on the placement table 59 in advance. And in the initial state, the output shaft of the sixth cylinder 57 is in the extended state;

[0063] When drilling the drum, a small amount of metal chips will be generated. Some of the chips will directly pass through the holes or fall directly into the waste box 41 along the outer wall of the drum;

[0064] And when it is necessary to replace the drum with holes opened, two rodless cylinders 42 can be started first. The sliders of the two rodless cylinders 42 drive the support panel 43 to rise. The first concave seat 46 and the second concave seat 52 also rise accordingly. Until reaching the highest position, the two V-shaped clamping seats 54 are located on both sides of the drum with holes opened. Then, the output shafts of the two fifth cylinders 53 are started to extend, so that the two V-shaped clamping seats 54 approach each other, and finally the drum is clamped. Then, the output shaft of the corresponding second cylinder 30 is started to retract to loosen the drum. Then, the output shaft of the fourth cylinder 44 is started to extend to take the drum out of the arc-shaped clamping piece 32. At any time, the rodless cylinder 42 is started, and the slider on it drives the support panel 43 to descend. After descending to the initial position, the fifth servo motor is started forward, and its output shaft drives the first central shaft 47 to rotate. At this time, by the meshing of the driving circular gear 48 and the toothless circular gear 50, the support prism 51 drives the second concave seat 52 to rotate. At this time, the opening part of the drum gradually tilts downward, and the debris inside will fall into the waste car 55;

[0065] After discharging the waste, the fifth servo motor is started in reverse, and the drum starts to rotate in reverse. When the bottom of the drum rotates to contact the belt conveyor unit 56, the output shaft of the fifth cylinder 53 is started to retract to loosen the drum, and the drum is automatically conveyed away by the belt conveyor unit 56. Then, the fifth servo motor is started forward to rotate the second concave seat 52 back to its original position;

[0066] While the above steps are being carried out, the output shaft of the sixth cylinder 57 can be started to retract at the same time. The connecting plate 58 drives the placement table 59 to move towards the clamping mechanism below. Finally, the placement table 59 is relatively close to the clamping mechanism. Then, the output shaft of the seventh cylinder 63 is started to extend first to drive the positioning plate 64 downward, which will not obstruct the drum. Then, the output shaft of the second cylinder 30 located below in the clamping mechanism is started to extend. At this time, the top end face of the placement table 59 is tangent to the bottommost part of the arc-shaped clamping piece 32. Then, the sixth servo motor is started forward, and its output shaft drives the pushing screw 61 to rotate, so that the pushing plate 62 drives a plurality of drums to move together. When the first drum moves into the arc-shaped clamping piece 32 and contacts the corresponding baffle 33, the sixth servo motor is turned off. Then, the output shaft of another second cylinder 30 in the clamping mechanism is started to extend, and the drum can be clamped. Then, the output shaft of the sixth cylinder 57 is started to extend again to bring the placement table 59 back to its original position. Then, the output shaft of the seventh cylinder 63 is started to retract to bring the positioning plate 64 back to its original position to form a positioning effect. Then, this can be repeated to reinstall the drum to be drilled. And when the drums in the placement table 59 are about to be exhausted, the drums can be placed upward again.

[0067] The present invention also provides a method for opening holes in the drum of a washing machine, including the following steps:

[0068] S1. Fixed drum: First, place a drum to be perforated on the lower arc-shaped clamping pieces 32 in both groups of clamping mechanisms, so that the two drums contact the corresponding baffle plates 33. Start the four second cylinders 30, and use the corresponding two arc-shaped clamping pieces 32 to clamp the two drums.

[0069] S2. Cylinder body perforation: Start the first drilling unit 11 and the second drilling unit 19, then start the first servo motor in the forward direction. The driving connecting rod 20 and the driven connecting rod 21 rotate simultaneously, the vertical thread sleeve 6 and the horizontal thread sleeve 12 start to rotate. On one side, the lifting screw rod 7 starts to descend, and on the other side, the transverse movement screw rod 13 moves towards the drum. When the first drilling unit 11 and the second drilling unit 19 respectively contact the cylinder body and the bottom of the cylinder, perform the perforation operation synchronously.

[0070] S3. Hole position adjustment: Start the first servo motor in the reverse direction to take out the first drilling unit 11 and the second drilling unit 19. Start the corresponding fourth servo motor in the forward direction to rotate the clamped drum by a specified angle, thereby adjusting the hole position.

[0071] S4. Replace the drum: Start the output shafts of the two third cylinders 36 to extend. The linkage column 34 drives the connecting rotating shaft 25 to rotate together, so that the two second connecting frames 27 exchange positions with each other, and then continue to perform the perforation work on the next drum.

[0072] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A drum hole opening device for a washing machine, comprising a bearing base, characterized in that: The top of the bearing base is fixedly installed with a first lateral support plate and a second lateral support plate, the top of the second lateral support plate is fixedly installed with a transverse support platform, the bottom of the transverse support platform is fixedly installed with a loading station plate, a vertical threaded sleeve is rotatably installed on the transverse support platform, a lifting screw is installed with an inner thread of the vertical threaded sleeve, a first mounting frame is fixedly installed on the bottom end of the lifting screw, a one-way adjusting screw is rotatably installed in the first mounting frame, a first linkage plate is threadedly installed on the one-way adjusting screw, a first drilling unit is fixedly installed on the bottom of the first linkage plate, a transverse threaded sleeve is rotatably installed on the loading station plate, a transverse screw is installed with an inner thread of the transverse threaded sleeve, one end of the transverse screw is fixedly installed with a first connecting frame, a first cylinder is fixedly installed in the first connecting frame, and the first cylinder The output shaft of the cylinder extends outside the first connecting frame and is movably connected to the first connecting frame, a second mounting frame is fixedly installed on the output shaft of the first cylinder, a two-way adjusting screw is rotatably installed in the second mounting frame, two second linkage plates are threadedly installed on the two-way adjusting screw, and a second drilling unit is fixedly installed on one side of the two second linkage plates, an active connecting rod is rotatably installed on the horizontal support, a driven connecting rod is arranged above the horizontal support, a first bevel gear is fixedly sleeved on the active connecting rod and the driven connecting rod, and the two first bevel gears are meshed with each other, a second bevel gear is fixedly sleeved on the active connecting rod and the horizontal threaded sleeve, and the two second bevel gears are meshed with each other, a third bevel gear is sleeved on the driven connecting rod and the vertical threaded sleeve, and the two third bevel gears are meshed with each other; A connecting shaft is rotatably installed on the first lateral support plate, a connecting plate is fixedly installed on one end of the connecting shaft close to the second lateral support plate, a second connecting frame is fixedly installed on the top and bottom of the connecting plate, a transmission shaft is rotatably installed on one side of the two second connecting frames away from the first lateral support plate, a fourth servo motor is fixedly installed in the two second connecting frames, the output shafts of the two fourth servo motors are fixedly connected to the ends of the two transmission shafts respectively, and a clamping mechanism is provided on one end of the two transmission shafts away from the first lateral support plate for clamping and fixing the roller to be drilled.

2. The drum hole opening device of a washing machine according to claim 1, characterized in that: A folding plate is fixedly installed on the top of the transverse support, the active connecting rod passes through the folding plate and is rotatably connected to the folding plate, a first servo motor is fixedly installed on the top of the folding plate, and the output shaft of the first servo motor is fixedly connected to the top end of the active connecting rod.

3. The drum hole opening device of a washing machine according to claim 2, characterized in that: A second servo motor is fixedly mounted on an outer wall of one side of the first mounting frame, and an output shaft of the second servo motor is fixedly connected to one end of the one-way adjustment screw. A third servo motor is fixedly mounted on the top of the second mounting frame, and an output shaft of the third servo motor is fixedly connected to the top end of the two-way adjustment screw.

4. The drum hole opening device of a washing machine according to claim 3, characterized in that: The first bevel gear, the second bevel gear and the third bevel gear are all of the same model.

5. The drum hole opening device of a washing machine according to claim 4, characterized in that: Any one of the clamping mechanisms includes a U-shaped frame, the U-shaped frame is fixedly installed at the end of the corresponding transmission shaft, second cylinders are fixedly installed on the inner walls of the top and bottom of the U-shaped frame, connecting folding strips are fixedly installed on the output shafts of the two second cylinders, arc-shaped clamping pieces are fixedly installed on one side of the two connecting folding strips, and baffle pieces are fixedly installed on the inner walls of the two arc-shaped clamping pieces.

6. The drum hole opening device of a washing machine according to claim 5, characterized in that: One end of the connecting rotating shaft away from the second lateral support plate is fixedly installed with a linkage column, a curved chute is formed in the linkage column, a guiding pull rod is slidably installed in the curved chute, two third cylinders are fixedly installed on the side of the first lateral support plate away from the second lateral support plate, fixing strips are fixedly installed on the output shafts of the two third cylinders, and the two fixing strips are fixedly connected to the guiding pull rod through columns.

7. The drum hole opening device of a washing machine according to claim 1, characterized in that: Two rodless cylinders are fixedly installed on the top of the bearing base, the same support panel is fixedly installed on the sliders of the two rodless cylinders, a fourth cylinder is fixedly installed on the top of the support panel, a pushing block is fixedly installed on the output shaft of the fourth cylinder, a first concave seat is fixedly installed on the top of the pushing block, a first central shaft and a second central shaft are rotatably installed in the first concave seat, a fifth servo motor is fixedly installed on the outer wall of one side of the first concave seat, the output shaft of the fifth servo motor is fixedly connected to one end of the first central shaft, a driving circular gear is fixedly sleeved on the first central shaft, a toothless circular gear is fixedly sleeved on the second central shaft, the toothless circular gear meshes with the driving circular gear, a support prism is fixedly installed on the toothless circular gear, a second concave seat is fixedly installed on the top of the support prism, fifth cylinders are fixedly installed on the inner walls of both sides of the second concave seat, and V-shaped clamping seats are fixedly installed on the output shafts of the two fifth cylinders.

8. The drum hole opening device of a washing machine according to claim 7, characterized in that: A sixth cylinder is fixedly installed on a side of the second lateral support plate away from the first lateral support plate, a joint plate is fixedly installed on the output shaft of the sixth cylinder, a placing table and a third mounting frame are fixedly installed on a side of the joint plate close to the second lateral support plate, the third mounting frame is located below the placing table, and the placing table and the third mounting frame both penetrate the second lateral support plate and are movably connected to the second lateral support plate, a push screw is rotatably installed in the third mounting frame, a sixth servo motor is fixedly installed on an outer wall of one side of the third mounting frame, the output shaft of the sixth servo motor is fixedly connected to one end of the push screw, a push plate is threadedly installed on the push screw, the top of the push plate penetrates the placing table and is movably connected to the placing table, and the bottom of the placing table is fixedly installed There is a seventh cylinder, a locking plate is fixedly installed on the output shaft of the seventh cylinder, the locking plate passes through the placing table and is slidably connected to the placing table, an extension arm is fixedly installed on the side of the second lateral support plate close to the first lateral support plate, a T-shaped slide groove is provided on the extension arm, a T-shaped plug block is slidably installed in the T-shaped slide groove, the T-shaped plug block is fixedly connected to the extension arm through bolts, a waste box is fixedly installed on one side of the T-shaped plug block, the waste box is located below the second drilling unit, a through groove is provided on the bearing base, a waste cart is provided in the through groove, a belt conveyor unit is provided on the bearing base, the belt conveyor unit passes through the second lateral support plate and is movably connected to the second lateral support plate, and the waste cart and the belt conveyor unit are respectively located on both sides of the first concave seat.

9. A method for drilling holes in a drum of a washing machine using the drum drilling device according to claim 6, characterized in that: The following steps are involved: S1. Fixing the roller: first, place a roller to be drilled on the lower arc-shaped clamping pieces in the two sets of clamping mechanisms, so that the two rollers are in contact with the corresponding baffles, start the four second cylinders, and clamp the two rollers with the corresponding two arc-shaped clamping pieces; S2, drilling holes in the barrel: start the first drilling unit and the second drilling unit, and then start the first servo motor in the forward direction, the active connecting rod and the driven connecting rod rotate at the same time, the vertical threaded sleeve and the horizontal threaded sleeve begin to rotate, the lifting screw on one side begins to descend, and the lateral screw on the other side moves horizontally toward the drum, when the first drilling unit and the second drilling unit contact the barrel body and the bottom of the barrel respectively, the drilling operation is carried out synchronously; S3, hole position adjustment: reversely start the first servo motor to bring out the first drilling unit and the second drilling unit, and forwardly start the corresponding fourth servo motor to rotate the clamped roller to a specified angle, thereby adjusting the hole position; S4, replacing the roller: start the output shafts of the two third cylinders to extend, and the linkage column rotates with the connecting shaft, so that the two second connecting frames exchange positions with each other, and then continue to open holes on the next roller.

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