A hemming machine for producing inner drum of washing machine

Abstract

The invention relates to the technical field of edge wrapping of inner drums of washing machines, and specifically discloses an edge wrapping machine for producing inner drums of washing machines, comprising an edge pressing device, a pressing device and a buckling device, wherein the pressing device comprises a telescopic driving device four, a connecting plate is fixedly arranged at the movable end of the telescopic driving device four, two rotating shafts two are rotatably arranged on the connecting plate, and embossing gears that mesh with each other are fixedly arranged at the bottoms of the two rotating shafts two; the edge wrapping machine for producing inner drums of washing machines of the invention controls the rotation of a lower turntable to drive the bottom of the drum and the cylinder to rotate, controls the edge pressing device to make the edge wrap bend upward and face upward, controls the two embossing gears to move downward and forces the edge wrap to be inserted between the two embossing gears, the embossing gears rotate to press the edge wrap into a wrinkle shape, and finally controls the pressure plate to move to bend and buckle the edge wrap, and at the same time, the overall bending amount of the edge wrap will be distributed at each wrinkle, so as to avoid the edge wrap forming a convex portion when the edge wrap is pressed to the end, so as to facilitate the bending of the edge wrap and prevent the bent edge wrap from re-stretching.

Description

Technical Field

[0001] The invention relates to the technical field of edge wrapping of washing machine inner drums, and in particular to an edge wrapping machine for producing washing machine inner drums. Background Art

[0002] In the production process of the inner drum of the washing machine in the prior art, a plate is first processed into a cylinder with both ends transparent, and then a bottom is buckled on one end of the cylinder and screwed to tighten it to improve its safety, thereby processing it into a semi-finished inner drum.

[0003] In order to achieve the buckling of the cylinder and the bottom of the cylinder, refer to Figure 1 As shown, generally, one end of the cylinder 91 is firstly flanged by a flanger to form a buckle edge 911, and a rim 921 corresponding to the buckle edge 911 is formed on the cylinder bottom 92, and then the rim 921 is rolled and buckled on the buckle edge 911 by a rimming machine, wherein, with reference to Figure 2 As shown, the hemming machine mainly includes a bracket 10, on which is provided a rotatable lower turntable 40 and a pressing device 60 capable of pressing the hemming 921. The specific operation method is: the cylinder bottom 92 is placed on the lower turntable 40, and then the cylinder 91 is put on the cylinder bottom 92, so that the hemming 921 is fitted with the buckling edge 911, and then the lower turntable 40 is controlled to rotate to drive the cylinder 91 and the cylinder bottom 92 to rotate synchronously, and the pressing device 60 is controlled to press the hemming 921 to bend, so that the hemming 921 is rolled onto the buckling edge 911 of the cylinder 91, and the buckling purpose is achieved by utilizing the restriction of the buckling edge 911 by the hemming 921, thereby obtaining a semi-finished inner cylinder.

[0004] However, the above technical solution still has the following defects. Since the engagement of the cylinder 91 and the cylinder bottom 92 is achieved by bending the edge 921, and in the process of bending the edge 921 under the pressure of the edge pressing device 60, the edge profile of the edge 921 is generally converged inwards, and in the process of cumulative pushing of the edge pressing device 60 on the edge 921, the edge pressing device 60 will push the edge to form a protrusion 922 (such as Figure 3 As shown in FIG. 1 , the protrusion 922 is not only difficult to bend, but also, as the edge pressing device 60 pushes the protrusion 922, the protrusion is likely to be pressed and transferred to re-stretch the bent edge 921. Summary of the invention

[0005] The present invention provides an edge wrapping machine for producing washing machine inner drums, aiming to solve the problem in the related art that an edge pressing device pushes the edge wrapping to form a convex portion, which is not only difficult to bend but also may re-stretch the bent edge wrapping.

[0006] The edge wrapping machine for producing the inner drum of a washing machine of the present invention comprises a bracket, a lower turntable rotatably arranged on the bracket and an edge pressing device capable of pressing the edge wrapping, and further comprises:

[0007] The pressing device comprises a telescopic driving device 4 fixedly arranged on the bracket, a connecting plate fixedly arranged at the movable end of the telescopic driving device 4, a rotating driving device 2 fixedly arranged on the connecting plate, two rotating shafts 2 rotatably arranged on the connecting plate, and the output end of the rotating driving device 2 is fixedly connected to one end of one of the rotating shafts 2, and the bottoms of the two rotating shafts 2 are fixedly connected with embossed gears, and the bottom of each of the embossed gears is provided with a bevel, and the two bevels form a channel for the hemming to enter, and the teeth of the two embossed gears are meshed with each other, and the two embossed gears are used to be separately arranged on both sides of the hemming to press the hemming into a pleated shape;

[0008] The buckling device comprises a transverse moving device 2 fixedly arranged on the bracket, a rotating shaft 3 is rotatably arranged on the movable end of the transverse moving device 2, a pressure plate is fixed on the rotating shaft 3, and the pressure plate is used to press the edge to the buckling edge.

[0009] The beneficial effects of the present invention are as follows: the bottom of the cylinder is placed on the lower turntable, and then the cylinder is placed on the bottom of the cylinder, so that the edge on the bottom of the cylinder fits with the buckled edge on the cylinder, the lower turntable is controlled to rotate to drive the bottom of the cylinder and the cylinder to rotate synchronously, the edge pressing device is controlled to press the edge from bottom to top so that the edge is bent upward and faces upward, and then the telescopic driving device 4 is controlled to drive the connecting plate to move downward, the movement of the connecting plate drives the two rotating shafts 2 to move downward, the two rotating shafts 2 move downward and drive the two embossing gears to move downward, so that the edge is guided to move along the channel formed by the two oblique edges, and at the same time, the edge is forced to deform and insert between the two embossing gears, and the rotating driving device 2 is controlled to drive one of the rotating shafts The second rotating shaft drives the embossing gear on the second rotating shaft to rotate synchronously, and the rotating embossing gear will drive the other embossing gear to rotate through the edge wrapping. The rotation of the two embossing gears can press the edge wrapping into a wrinkled shape. Finally, the second transverse shifting device is controlled to drive the third rotating shaft and the pressure plate to move synchronously and approach the cylinder. The pressure plate moves to press the wrinkled edge wrapping to the upper surface of the buckled edge to buckle. In the process of the pressure plate gradually pressing the edge wrapping to bend, the wrinkles will be deformed, thereby distributing the overall bending amount of the edge wrapping at each wrinkle, thereby avoiding the formation of a convex portion on the edge wrapping when the edge wrapping is pressed to the end, so as to facilitate the bending of the edge wrapping, and then prevent the bent edge from re-stretching.

[0010] Preferably, a rotating drive device and a telescopic drive device are installed on the bracket, the output end of the rotating drive device is fixedly connected to the lower turntable, the movable end of the telescopic drive device is rotatably provided with an upper turntable, and the central axis of the output end of the rotating drive device, the central axis of the lower turntable, the central axis of the upper turntable and the central axis of the movable end of the telescopic drive device are collinear.

[0011] The effect is that by installing the telescopic driving device 1 on the bracket, the upper turntable is rotatably arranged at the movable end of the telescopic driving device 1, so that the telescopic driving device 1 can be controlled to drive the upper turntable to move downward to press the top of the cylinder, and the upper turntable and the lower turntable work together to clamp the cylinder and the bottom of the cylinder, so that the contact between the cylinder and the bottom of the cylinder is closer, and the cylinder and the bottom of the cylinder are more stable when rotating.

[0012] Preferably, the edge pressing device includes a transverse moving device 1, a guide column is fixedly provided on the movable end of the transverse moving device 1, a telescopic driving device 2 is fixedly installed on the guide column, a clamping head is slidably connected with a single degree of freedom on the guide column, the movable end of the telescopic driving device 2 is fixedly connected to the clamping head, a rotating shaft 1 is rotatably provided on the clamping head, and a movable disk is fixedly provided on the rotating shaft 1.

[0013] The effect is that the transverse movement device 1 can drive the guide column to move, and the movement of the guide column can drive the movable disk to be placed directly below the edge through the clamp and the rotating shaft 1, and the telescopic drive device 2 can drive the movable disk to move upward through the clamp to press the edge to deform, so as to realize the edge bending upward.

[0014] Preferably, the transverse movement device 1 includes a fixed plate 1 fixed on the support platform and a telescopic drive device 3 fixed on the support platform, a slide plate 1 is slidably arranged with a single degree of freedom on the fixed plate 1, the guide column is fixedly arranged on the slide plate 1, and the movable end of the telescopic drive device 3 is fixedly connected to the slide plate 1.

[0015] Preferably, the edge pressing device further includes a pressure maintaining mechanism;

[0016] The pressure-maintaining mechanism includes a connecting frame fixedly arranged on a slide plate 1, an elastic telescopic rod fixedly arranged on the connecting frame, a connecting block fixedly arranged on the movable end of the elastic telescopic rod, a guide plate slidingly arranged with a single degree of freedom on the connecting block, a movable frame fixedly arranged on the guide plate, an elastic member 1 arranged between the movable frame and the connecting block, and a contact roller 1 and a contact roller 2 rotatably arranged on the movable frame, the contact roller 1 can be moved to contact the outer surface of the cylinder, and the contact roller 2 can be moved to contact the buckling edge of the cylinder.

[0017] The effect is that when the edge pressing device moves toward the cylinder, the first abutting roller on the pressure maintaining mechanism can abut the outer surface of the cylinder and can roll synchronously with the rotation of the cylinder, thereby improving the stability of the edge pressing device, and the second abutting roller can pass over the edges of the hemming and the snapping edge and be crimped on the upper surface of the snapping edge. At the same time, the second abutting roller rolls along with the rotation of the snapping edge. When the edge pressing device moves on the movable plate to press the buckling edge and deform, the second abutting roller can press the snapping edge and support the snapping edge to prevent the snapping edge from bending along with the edge pressing.

[0018] Preferably, the elastic telescopic rod comprises a sleeve fixed on the connecting frame, the inner wall of the sleeve is slidably connected with a movable rod in a single degree of freedom, the movable rod is fixed on the connecting block, and an elastic member 2 is arranged between the inner wall of the sleeve and the movable rod.

[0019] Preferably, the pressing device further comprises a stabilizing frame, which is fixed on the bracket and has holes slidably connected to the two rotating shafts.

[0020] The effect is that when the two rotating shafts 2 move, the two rotating shafts 2 can respectively move in a directional manner along the two holes on the stabilizing frame, so as to improve the stability of the movement of the two rotating shafts 2.

[0021] Preferably, the transverse movement device 2 includes a fixed plate 2 fixed on the bracket and a telescopic drive device 5, the fixed plate 2 is slidably connected with a slide plate 2 with a single degree of freedom, a pressure plate frame is fixed on the slide plate 2, the movable end of the telescopic drive device 5 is fixedly connected to the pressure plate frame, and the rotating shaft 3 is rotatably arranged on the pressure plate frame.

[0022] The beneficial effects of the present invention are:

[0023] 1. Place the bottom of the cylinder on the lower turntable, and then place the cylinder on the bottom of the cylinder. Control the rotation of the lower turntable to drive the bottom of the cylinder and the cylinder to rotate synchronously. Control the edge pressing device to press the edge from bottom to top so that the edge can be bent upward and face upward. Then control the two embossing gears to move downward so that the edge moves along the channel formed by the two bevels, forcing the edge to deform and insert between the two embossing gears. Control the rotation of the embossing gears, and the rotating embossing gears can press the edge into a wrinkled shape. Finally, control the pressure plate to move and press the wrinkled edge to buckle against the upper surface of the buckled edge. In the process of the pressure plate gradually pressing the edge to bend, the wrinkles will deform, so that the overall bending amount of the edge is distributed at each wrinkle, so as to avoid the formation of a convex portion of the edge when the edge is pressed to the end, so as to facilitate the bending of the edge, and thus prevent the bent edge from re-stretching.

[0024] 2. By installing a telescopic driving device 1 on the bracket and rotating the upper turntable at the movable end of the telescopic driving device 1, the telescopic driving device 1 can be controlled to drive the upper turntable to move downward and press the top of the cylinder. The upper turntable and the lower turntable work together to clamp the cylinder and the bottom of the cylinder, so that the contact between the cylinder and the bottom of the cylinder is closer, and the cylinder and the bottom of the cylinder are more stable when rotating; by setting a pressure holding mechanism, when the edge pressing device moves toward the cylinder, the abutting roller 1 on the pressure holding mechanism can abut the outer surface of the cylinder and roll synchronously with the cylinder, thereby improving the stability of the edge pressing device, and the abutting roller 2 can be pressed on the upper surface of the buckled edge and roll synchronously. When the movable plate moves up to press the edge and deforms, the abutting roller 2 can press the buckled edge to support the buckled edge to prevent the buckled edge from bending with the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a cylinder and a cylinder bottom in the prior art.

[0026] Figure 2 It is a structural schematic diagram of an edge wrapping machine in the prior art.

[0027] Figure 3 It is a schematic diagram of the structure of the raised portion formed by the hemming in the prior art.

[0028] Figure 4 It is a structural schematic diagram of a specific embodiment of the present invention.

[0029] Figure 5 It is a structural schematic diagram of a bracket, a rotating drive device 1, a telescopic drive device 1, a lower turntable, an upper turntable, an edge pressing device, a pressing device and a buckling device in a specific embodiment of the present invention.

[0030] Figure 6 It is a structural schematic diagram of a support platform, a support leg, a support column and a support frame in a specific embodiment of the present invention.

[0031] Figure 7 It is a schematic structural diagram of a edge holding device in a specific embodiment of the present invention.

[0032] Figure 8 It is an exploded view of the edge holding device of a specific embodiment of the present invention.

[0033] Fig. 9 It is a structural schematic diagram of a pressing device according to a specific embodiment of the present invention.

[0034] Fig.10 It is a structural schematic diagram of the rotating shaft 2 and the embossed gear in a specific embodiment of the present invention.

[0035] Fig.11 It is a structural schematic diagram of a crimping device in a specific embodiment of the present invention.

[0036] Fig.12 It is a structural schematic diagram of the upturned state of the hemming in a specific embodiment of the present invention.

[0037] Fig.13 It is a schematic diagram of the structure of the hemming pressed into a wrinkled shape in a specific embodiment of the present invention.

[0038] Reference numerals:

[0039] 10. Bracket; 11. Support platform; 12. Support foot; 13. Support column; 14. Support frame; 20. Rotation drive device 1; 30. Telescopic drive device 1; 40. Lower turntable; 50. Upper turntable; 60. Edge pressing device; 61. Transverse movement device 1; 611. Fixed plate 1; 612. Telescopic drive device 3; 613. Guide part 1; 614. Slide plate 1; 62. Guide column; 621. Guide groove; 63. Telescopic drive device 2; 64. Chuck; 65. Rotating shaft 1; 66. Moving plate; 67. Pressure-maintaining mechanism; 671. Connecting frame; 672. Elastic telescopic rod; 6721. Sleeve; 6722. Movable rod; 6723. Elastic member 2; 673. Connecting block ;6731, guide hole;674, guide plate;675, movable frame;676, elastic member one;677, abutment roller one;678, abutment roller two;70, pressing device;71, telescopic drive device four;72, connecting plate;73, rotation drive device two;74, rotating shaft two;75, embossing gear;751, bevel edge;76, stabilizing frame;80, pressing device;81, transverse movement device two;811, fixed plate two;812, telescopic drive device five;813, guide part two;814, slide plate two;815, pressure plate frame;82, rotating shaft three;83, pressure plate;91, cylinder;911, buckling edge;92, cylinder bottom;921, edging;922, raised part. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0041] like Figures 4 to 13 As shown, the edge wrapping machine for the inner drum of a washing machine of the present invention comprises a bracket 10 to support the edge wrapping machine for the inner drum of a washing machine. A rotating drive device 20 and a telescopic drive device 30 are arranged on the bracket 10. The output end of the rotating drive device 20 is fixedly connected to a lower turntable 40. The movable end of the telescopic drive device 30 is provided with an upper turntable 50 through a rotating shaft. The bottom 92 of the drum is placed on the lower turntable 40, and then the cylinder 91 is placed on the bottom 92 of the drum. The telescopic drive device 30 is controlled to drive the upper turntable 50 to move downward to press against the cylinder. The top of 91 can press the cylinder 91 onto the bottom 92 of the cylinder, and the control rotation driving device 20 can drive the lower turntable 40 to rotate, thereby driving the bottom 92, the cylinder 91 and the upper turntable 50 to rotate synchronously. The edge pressing device 60, the pressing device 70 and the buckling device 80 are arranged on the bracket 10. The edge pressing device 60 can turn the edge 921 up, the pressing device 70 can press the turned-up edge 921 into a wrinkled shape, and the buckling device 80 can buckle the edge 921 inward, thereby buckling the edge 921 on the buckling edge 911.

[0042] refer to Figures 4 to 6 As shown, the bracket 10 includes a support platform 11, a support leg 12 is fixedly connected to the bottom of the support platform 11, a support column 13 is fixedly connected to the support platform 11, and a support frame 14 is welded to the support column 13. In this embodiment, the rotation drive device 20 is a drive motor fixedly installed on the support platform 11 through a connecting plate, and the output end of the rotation drive device 20 is fixedly connected to the lower turntable 40. The telescopic drive device 30 is a cylinder, and the movable end of the cylinder is rotatably connected to the upper turntable 50 through a bearing. It should be noted that the central axis of the output end of the rotation drive device 20, the central axis of the lower turntable 40, the central axis of the upper turntable 50 and the central axis of the movable end of the telescopic drive device 30 are on the same straight line.

[0043] By putting the cylinder bottom 92 on the lower turntable 40, and the cylinder 91 on the cylinder bottom 92, the telescopic driving device 30 is controlled to drive the upper turntable 50 to move downward and press the top of the cylinder 91, and the upper turntable 50 and the lower turntable 40 work together to clamp the cylinder 91 and the cylinder bottom 92, so that the cylinder 91 is pressed against the cylinder bottom 92, and the rotation driving device 20 is controlled to drive the lower turntable 40 to rotate, and the rotation of the lower turntable 40 can drive the cylinder bottom 92, the cylinder 91 and the upper turntable 50 to rotate synchronously.

[0044] refer to Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the edge pressing device 60 includes a transverse moving device 61, the movable end of the transverse moving device 61 is fixedly connected to a guide column 62, and a telescopic driving device 63 is fixedly installed on the guide column 62. In the present embodiment, the telescopic driving device 63 is a cylinder, and a guide groove 621 is provided on the guide column 62. The inner wall of the guide groove 621 is slidably connected with a clamping head 64 in a single degree of freedom. The movable end of the telescopic driving device 63 is fixedly connected to the clamping head 64, and a rotating shaft 65 is rotatably connected to the clamping head 64 through a bearing, and a movable disk 66 is fixedly connected to the rotating shaft 65.

[0045] The transverse movement device 61 can drive the guide column 62 to move. The movement of the guide column 62 can drive the movable plate 66 to be placed directly below the edge 921 through the clamping head 64 and the rotating shaft 65. The telescopic driving device 2 63 can drive the movable plate 66 to move upward through the clamping head 64 to press the edge 921 to deform, so that the edge 921 is bent upward.

[0046] Continue to refer Figure 7As shown, the transverse movement device 61 includes a fixed plate 611 fixedly connected to the support platform 11 and a telescopic drive device 3 612, the fixed plate 611 is provided with a guide portion 613, and the guide portion 613 is slidably connected with a slide plate 614 with a single degree of freedom. In the present embodiment, the cross-section of the guide portion 613 is T-shaped, and the slide plate 614 is provided with a T-shaped groove matched with the guide portion 613. The guide column 62 is welded to the slide plate 614, and the movable end of the telescopic drive device 3 612 is fixedly connected to the slide plate 614. In the present embodiment, the telescopic drive device 3 612 is a cylinder; the telescopic drive device 3 612 can drive the slide plate 614 to move by telescoping, and the slide plate 614 moves along the guide of the guide portion 613, thereby realizing the synchronous movement of the guide column 62.

[0047] Continue to refer Figure 7 and Figure 8 As shown, the edge pressing device 60 also includes a pressure maintaining mechanism 67, which includes a connecting frame 671 fixedly connected to the slide plate 614, an elastic telescopic rod 672 fixedly connected to the connecting frame 671, a movable end of the elastic telescopic rod 672 fixedly connected to a connecting block 673, a guide hole 6731 is opened on the connecting block 673, the inner wall of the guide hole 6731 is slidably connected with a guide plate 674 in a single degree of freedom, a movable frame 675 is fixedly connected to the guide plate 674, an elastic member 1 676 is fixedly connected between the movable frame 675 and the connecting block 673, the elastic member 1 676 is a spring, and an abutting roller 1 677 and an abutting roller 2 678 are rotatably connected to the movable frame 675 through a bearing, the abutting roller 1 677 can be moved to abut against the outer surface of the cylinder 91, the abutting roller 2 678 is truncated cone-shaped, and the abutting roller 2 678 can be moved to abut against the locking edge 911.

[0048] The movement of the slide plate 614 toward the cylinder 91 can drive the pressure-keeping mechanism 67 to move synchronously. During this period, the abutment roller 677 on the pressure-keeping mechanism 67 will abut the outer surface of the cylinder 91 and roll synchronously with the cylinder 91. During the movement of the abutment roller 678, its conical surface is pushed by the edge 921 and the buckling edge 911, forcing the abutment roller 678 to overcome the elastic force of the elastic member 676 and move upward, so that the abutment roller 678 passes over the edges of the edge 921 and the buckling edge 911 and is pressed against the upper surface of the buckling edge 911. At the same time, the abutment roller 678 rolls along with the rotation of the buckling edge 911. When the movable plate 66 moves up to press the edge 921 to deform, the abutment roller 678 can press the buckling edge 911 to prevent the buckling edge 911 from bending along with the edge 921.

[0049] It should be noted that the elastic telescopic rod 672 includes a sleeve 6721 fixedly connected to the connecting frame 671, the inner wall of the sleeve 6721 is slidably connected with a movable rod 6722 in a single degree of freedom, the movable rod 6722 is welded to the connecting block 673, and an elastic part 2 6723 is fixedly connected between the inner wall of the sleeve 6721 and the movable rod 6722, and the elastic part 2 6723 is a spring.

[0050] refer to Figure 4 , Figure 5 , Fig. 9 and Fig.10 As shown, the pressing device 70 includes a telescopic driving device 71 fixedly mounted on the support platform 11, the telescopic driving device 71 is a cylinder, the movable end of the telescopic driving device 71 is fixedly connected to a connecting plate 72, a rotating driving device 73 is fixedly mounted on the connecting plate 72, the rotating driving device 73 is a driving motor fixedly mounted on the connecting plate 72, the connecting plate 72 is rotatably connected to two rotating shafts 74 through bearings, and the output end of the rotating driving device 73 is fixedly connected to one of the rotating shafts 74, and the bottoms of the two rotating shafts 74 are fixedly connected to embossing gears 7 5. The teeth of the two embossed gears 75 mesh with each other, and there is a gap between the meshing teeth of the two embossed gears 75, and the gap is greater than the thickness of the edging 921. In addition, a bevel 751 is provided at the bottom edge of each embossed gear 75, and the bevels 751 on the two embossed gears 75 form a "human" shaped channel. When the two embossed gears 75 move downward, the edging 921 can be guided and moved along the channel so that the edging 921 is guided to the gap between the meshing teeth of the two embossed gears 75. The two embossed gears 75 are disposed on both sides of the edging 921, and the edging 921 can be pressed into a wrinkled shape.

[0051] After the edging 921 on the bottom 92 of the cylinder is bent and turned upward by the edge pressing device 60, the telescopic driving device 4 71 is controlled to drive the connecting plate 72 to move, and the movement of the connecting plate 72 drives the two rotating shafts 2 74 to move downward, and the two rotating shafts 2 74 move downward to drive the two embossing gears 75 to move downward, and the edging 921 can move along the guide of the "human" shaped channel formed by the beveled edges 751 on the two embossing gears 75, so that the edging 921 is deformed and inserted between the two embossing gears 75, and the rotating driving device 2 73 is controlled to drive one of the rotating shafts 2 74 to rotate, and the embossing gear 75 on the rotating shaft 2 74 rotates synchronously, and the rotating embossing gear 75 will drive the other embossing gear 75 to rotate through the edging 921, and the rotation of the two embossing gears 75 can press the edging 921 into a wrinkled shape.

[0052] Continue to refer Figure 8As shown, the pressing device 70 also includes a stabilizing frame 76, which is welded on the support platform 11. The stabilizing frame 76 is provided with a hole that is slidably connected to the two rotating shafts 74 with a single degree of freedom. When the two rotating shafts 74 move, the two rotating shafts 74 can move in a directional manner along the two holes on the stabilizing frame 76 respectively to improve the stability of the movement of the two rotating shafts 74.

[0053] refer to Figure 4 , Figure 5 and Fig.11 As shown, the pressing device 80 includes a transverse moving device 2 81 fixedly mounted on the support platform 11, and the movable end of the transverse moving device 2 81 is rotatably connected to a rotating shaft 3 82 through a bearing, and a pressure plate 83 is fixedly connected to the rotating shaft 3 82; the transverse moving device 2 81 can drive the rotating shaft 3 82 to move, and the movement of the rotating shaft 3 82 drives the pressure plate 83 to move, and the movement of the pressure plate 83 can press the wrinkled edge 921 to snap into the upper surface of the snapping edge 911.

[0054] Continue to refer Fig.11 As shown, the transverse movement device 81 includes a fixed plate 811 fixedly connected to the support platform 11 and a telescopic drive device 812. The fixed plate 811 is provided with a guide portion 813. The guide portion 813 is slidably connected with a slide plate 814 with a single degree of freedom. It should be noted that the cross-section of the guide portion 813 is T-shaped, and the slide plate 814 is provided with a groove matching the guide portion 813. A pressure plate frame 815 is welded to the slide plate 814. The movable end of the telescopic drive device 812 is fixedly connected to the pressure plate frame 815. In this embodiment, the telescopic drive device 812 is a cylinder. The telescopic drive device 812 can drive the slide plate 814 to move by telescoping, and the slide plate 814 moves along the guide of the guide portion 813, thereby driving the rotating shaft 82 and the pressure plate 83 to move synchronously.

[0055] When in use, place the cylinder bottom 92 on the lower turntable 40, and then place the cylinder 91 on the cylinder bottom 92, so that the edge 921 on the cylinder bottom 92 fits with the buckled edge 911 on the cylinder 91, control the telescopic drive device 30 to extend and drive the upper turntable 50 to move downward and press the top of the cylinder 91, so that the cylinder 91 can be pressed onto the cylinder bottom 92, so that the edge 921 on the cylinder bottom 92 fits fully with the buckled edge 911 on the cylinder 91, control the rotation drive device 20 to drive the lower turntable 40 to rotate, and the lower turntable 40 rotates to drive the cylinder bottom 92, the cylinder 91 and the upper turntable 50 to rotate synchronously; control the telescopic drive device 3 612 to extend and drive the slide plate 614 to move, so that the slide plate 614 is guided along the guide part 613 to approach the cylinder 91, and the movement of the slide plate 614 drives the pressure holding mechanism 67 and the guide column 62 to move synchronously, during which the abutting roller 677 on the pressure holding mechanism 67 will abut against the cylinder 9 1 and rolls synchronously with the cylinder 91, and during the movement of the contact roller 2 678, its conical surface is pushed by the edge 921 and the buckling edge 911, forcing the contact roller 2 678 to overcome the elastic force of the elastic member 1 676 and move upward, so that the contact roller 2 678 passes over the edges of the edge 921 and the buckling edge 911 and is pressed on the upper surface of the buckling edge 911. At the same time, the contact roller 2 678 rolls along with the rotation of the buckling edge 911. As the slide plate 1 614 continues to move, the elastic telescopic rod 672 is compressed, and the slide plate 1 614 moves to drive the guide column 62 to continue to move. The guide column 62 moves through the clamp 64 and the rotating shaft 1 65 to continue to drive the moving plate 66 to move until the moving plate 66 moves to the bottom of the edge 921; then the telescopic driving device 2 63 is controlled to drive the moving plate 66 to move upward through the clamp 64, and the moving plate 66 moves upward to press the edge 921 to deform, so that the edge 921 is bent upward and faces upward (such as Fig.12 As shown), at the same time, the abutment roller 2 678 presses the buckling edge 911 to prevent the buckling edge 911 from bending with the edge 921; after the edge 921 is bent upward and faces upward, the telescopic driving device 4 71 is controlled to drive the connecting plate 72 to move downward, and the movement of the connecting plate 72 drives the two rotating shafts 2 74 to move downward, and the two rotating shafts 2 74 move downward to drive the two embossing gears 75 to move downward, and the edge 921 can move along the guide of the "human" shaped channel formed by the beveled edges 751 on the two embossing gears 75, forcing the edge 921 to deform and insert between the two embossing gears 75, and the rotating driving device 2 73 is controlled to drive one of the rotating shafts 2 74 to rotate, and the embossing gear 75 on the rotating shaft 2 74 rotates synchronously, and the rotating embossing gear 75 will drive the other embossing gear 75 to rotate through the edge 921, and the rotation of the two embossing gears 75 can press the edge 921 into a wrinkled shape (such as Fig.13As shown); finally, the telescopic driving device five 812 is controlled to drive the slide plate two 814 to move, and the slide plate two 814 drives the rotating shaft three 82 and the pressure plate 83 to move synchronously and approach the cylinder 91, and the pressure plate 83 moves to press the wrinkled edge 921 to snap onto the upper surface of the buckled edge 911. During the bending process of the edge 921, the wrinkles will deform, so that the overall bending amount of the edge 921 is distributed at each wrinkle, thereby avoiding the formation of a protrusion 922 on the edge 921 when the edge 921 is pressed to the end, so as to facilitate the bending of the edge 921, thereby preventing the bent edge 921 from re-expanding.

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hemming machine for producing inner drums of washing machines, comprising a bracket, a lower turntable rotatably arranged on the bracket, a drum bottom placed on the lower turntable, an hemming on the drum bottom and an edge pressing device capable of pressing the hemming, characterized in that: Also includes: The pressing device comprises a telescopic driving device 4 fixedly arranged on the bracket, a connecting plate fixedly arranged at the movable end of the telescopic driving device 4, a rotating driving device 2 fixedly arranged on the connecting plate, two rotating shafts 2 rotatably arranged on the connecting plate, and the output end of the rotating driving device 2 is fixedly connected to one end of one of the rotating shafts 2, and the bottoms of the two rotating shafts 2 are fixedly connected with embossed gears, and the bottom of each of the embossed gears is provided with a bevel, and the two bevels form a channel for the hemming to enter, and the teeth of the two embossed gears are meshed with each other, and the two embossed gears are used to be separately arranged on both sides of the hemming to press the hemming into a pleated shape; The buckling device comprises a transverse moving device 2 fixedly arranged on the bracket, a rotating shaft 3 is rotatably arranged on the movable end of the transverse moving device 2, a pressure plate is fixedly arranged on the rotating shaft 3, and the pressure plate is used to press the edge wrapping onto the buckling edge; The edge pressing device includes a transverse moving device 1, a guide column is fixedly provided at the movable end of the transverse moving device 1, a telescopic driving device 2 is fixedly installed on the guide column, a clamping head is connected with a single degree of freedom sliding connection on the guide column, the movable end of the telescopic driving device 2 is fixedly connected to the clamping head, a rotating shaft 1 is rotatably provided on the clamping head, and a movable disk is fixedly provided on the rotating shaft 1.

2. The hemming machine for washing machine inner drum production according to claim 1, characterized in that: A rotating drive device 1 and a telescopic drive device 1 are installed on the bracket, the output end of the rotating drive device 1 is fixedly connected to the lower turntable, the movable end of the telescopic drive device 1 is rotatably provided with an upper turntable, and the central axis of the output end of the rotating drive device 1, the central axis of the lower turntable, the central axis of the upper turntable and the central axis of the movable end of the telescopic drive device 1 are collinear.

3. The hemming machine for washing machine inner drum production according to claim 1, characterized in that: The transverse movement device 1 includes a fixed plate 1 fixed on the support platform and a telescopic drive device 3 fixed on the support platform, a slide plate 1 is slidably arranged with a single degree of freedom on the fixed plate 1, the guide column is fixedly arranged on the slide plate 1, and the movable end of the telescopic drive device 3 is fixedly connected to the slide plate 1.

4. The hemming machine for washing machine inner drum production according to claim 3, characterized in that: The edge pressing device also includes a pressure maintaining mechanism; The pressure-maintaining mechanism includes a connecting frame fixedly arranged on a slide plate 1, an elastic telescopic rod fixedly arranged on the connecting frame, a connecting block fixedly arranged on the movable end of the elastic telescopic rod, a guide plate slidingly arranged with a single degree of freedom on the connecting block, a movable frame fixedly arranged on the guide plate, an elastic member 1 arranged between the movable frame and the connecting block, and a contact roller 1 and a contact roller 2 rotatably arranged on the movable frame, the contact roller 1 can be moved to contact the outer surface of the cylinder, and the contact roller 2 can be moved to contact the buckling edge of the cylinder.

5. The hemming machine for producing the inner drum of a washing machine according to claim 4, characterized in that: The elastic telescopic rod comprises a sleeve fixed on the connecting frame, the inner wall of the sleeve is slidably connected with a movable rod in a single degree of freedom, the movable rod is fixed on the connecting block, and a second elastic member is arranged between the inner wall of the sleeve and the movable rod.

6. The hemming machine for producing the inner drum of a washing machine according to any one of claims 1 to 5, characterized in that: The pressing device also includes a stabilizing frame, which is fixed on the bracket and has holes slidably connected to the two rotating shafts.

7. The hemming machine for washing machine inner drum production according to any one of claims 1 to 5, characterized in that: The transverse movement device 2 includes a fixed plate 2 fixed on the bracket and a telescopic drive device 5, the fixed plate 2 is slidably connected with a slide plate 2 with a single degree of freedom, a pressure plate frame is fixed on the slide plate 2, the movable end of the telescopic drive device 5 is fixedly connected to the pressure plate frame, and the rotating shaft 3 is rotatably set on the pressure plate frame.

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