Automatic cosmetic bottle cap screwing mechanism and method
阅读说明：本技术 一种化妆品瓶体自动拧盖机构及方法 (Automatic cosmetic bottle cap screwing mechanism and method ) 是由 王凯 于 2020-07-31 设计创作，主要内容包括：本发明公开了化妆品技术领域的一种化妆品瓶体自动拧盖机构及方法,包括固定架,所述固定架的底部通过螺栓固定连接有底座,所述固定架的内壁上设置有固定板,所述固定板的中部横向贯穿有螺纹杆,所述螺纹杆的右端贯穿固定架连接有手轮,所述螺纹杆的左端通过轴承转动连接有固定组件,所述固定架于固定组件的上方设置有拧盖组件,所述固定架于固定组件的下方设置有支座,所述支座的顶部设置有气缸,通过两组齿轮同轴转动,可以保证安装板移动时的水平度,且齿轮与齿条杆之间因啮合产生的阻力可以限制安装板下降的速度,避免安装板下降速度过快,导致气动三爪卡盘容易与盖体产生硬性接触,导致盖体容易损坏,不利于后续的拧盖。(The invention discloses an automatic cosmetic bottle cap screwing mechanism and a method in the technical field of cosmetics, and the automatic cosmetic bottle cap screwing mechanism comprises a fixed frame, wherein the bottom of the fixed frame is fixedly connected with a base through a bolt, the inner wall of the fixed frame is provided with a fixed plate, the middle part of the fixed plate transversely penetrates through a threaded rod, the right end of the threaded rod penetrates through the fixed frame and is connected with a hand wheel, the left end of the threaded rod is rotatably connected with a fixed assembly through a bearing, a cap screwing assembly is arranged above the fixed assembly of the fixed frame, the fixed frame is provided with a support below the fixed assembly, the top of the support is provided with an air cylinder, through the coaxial rotation of two groups of gears, the levelness of a mounting plate during movement can be ensured, and the descending speed of the mounting plate can be limited by the resistance generated by the meshing between the gears and the rack rods, so that, resulting in the cover being easily damaged and not conducive to subsequent screwing.)
1. The utility model provides an automatic screw capping mechanism of cosmetic bottle body, includes mount (1), its characterized in that: the bottom of mount (1) is through bolt fixedly connected with base (2), be provided with fixed plate (3) on the inner wall of mount (1), threaded rod (4) transversely runs through at the middle part of fixed plate (3), the right-hand member of threaded rod (4) runs through mount (1) and is connected with hand wheel (5), the left end of threaded rod (4) is rotated through the bearing and is connected with fixed subassembly (6), mount (1) is provided with in the top of fixed subassembly (6) and twists lid subassembly (7), mount (1) is provided with support (8) in the below of fixed subassembly (6), the top of support (8) is provided with cylinder (9), the top fixedly connected with backup pad (10) of cylinder (9).
2. The automatic cosmetic bottle capping mechanism of claim 1, wherein: the fixing component (6) comprises a fixing frame (61) which is rotatably connected with a threaded rod (4) through a bearing, two groups of guide rods (62) with the same structure transversely penetrate through the fixing frame (61), the right ends of the guide rods (62) are fixedly connected to the inner wall of the fixing frame (1) through fixing plates (3), two groups of movable rods (63) penetrate through the fixing frame (61), the movable rods (63) are arranged in two groups, the two groups of movable rods (63) are arranged below the guide rods (62), the two groups of movable rods (63) are connected with a driving component (64), the two groups of movable rods (63) penetrate through the front side and the rear side of the fixing frame (61), the bottom of the fixing frame (61) is fixedly connected with a bottom plate (65), the top of the bottom plate (65) is movably connected with the driving component (64), and the front ends of the movable rods (63) are provided with fixing blocks (66), and the opposite sides of the two groups of fixed blocks (66) are fixedly connected with arc-shaped plates (67), and the opposite sides of the two groups of arc-shaped plates (67) are provided with anti-skid pads.
3. An automatic screw-on mechanism for cosmetic bottle according to claim 2, wherein: the driving assembly (64) comprises a cross rod (641), the right end of the cross rod (641) penetrates through a fixed frame (61) and is fixedly connected onto a fixed plate (3), a supporting frame (642) is fixedly connected to the left end of the cross rod (641), a movable block (643) is movably connected onto the supporting frame (642), a connecting plate (644) is rotatably connected to the top of the movable block (643), an installation block (645) is fixedly connected to the rear side of the top of the connecting plate (644), strip-shaped frames (646) are fixedly connected to two sides of the installation block (645), fixed columns (647) are movably connected onto two groups of the strip-shaped frames (646), and the bottoms of the two groups of the fixed columns (647) are respectively arranged on two groups of the movable rods (63).
4. An automatic screw-on mechanism for cosmetic bottle according to claim 2, wherein: the screw cap component (7) comprises a first motor (71) fixedly connected to the top of the fixed frame (1), the power end of the bottom of the first motor (71) is connected with a screw rod (72), the bottom end of the screw rod (72) is rotatably connected with the inner wall of the fixed frame (1) through a bearing seat, the screw rod (72) is screwed with a mounting plate (73), the right side of the mounting plate (73) is movably connected with a protection component (74), the left end of the mounting plate (73) extends to the upper part of the fixed frame (61), the top of the mounting plate (73) is fixedly connected with a second motor (75), the power end of the bottom of the second motor (75) is connected with a rotating shaft (76), the bottom of rotation axis (76) runs through mounting panel (73) and is connected with pneumatic three-jaw chuck (77), and pneumatic three-jaw chuck (77) are located the top of fixed frame (61).
5. An automatic screw-on mechanism for cosmetic bottle according to claim 4, wherein: protection subassembly (74) include two sets of rack bar (741) that the structure is the same, and is two sets of the left end of rack bar (741) is fixed connection respectively on the front and back both sides of mounting panel (73) right-hand member, and is two sets of the right side of rack bar (741) all meshes and is connected with gear (742), and is two sets of gear (742) all cup joints on axis of rotation (743), the front end of axis of rotation (743) passes through the bearing and is connected with the inner wall rotation of mount (1).
6. An automatic screw-on mechanism for cosmetic bottle according to claim 2, wherein: the left ends of the two groups of guide rods (62) are provided with external threads, the left ends of the two groups of guide rods (62) are connected with a blocking cover through the external threads, and the blocking cover is provided with an annular anti-skidding sleeve.
7. An automatic screw-on mechanism for cosmetic bottle according to claim 3, wherein: the bottom of the movable block (643) is attached to the bottom plate (65), and the two groups of strip frames (646) are located below the guide rod (62).
8. An automatic screw-on mechanism for cosmetic bottle according to claim 4, wherein: the left side fixed connection mount pad of mount (1), and the top of mount pad is provided with the montant, mounting panel (73) fixed connection is run through on mount (1) in the top of montant.
9. The method for an automatic cosmetic bottle capping mechanism according to any one of claims 1 to 8, wherein: the method comprises the following steps:
s1: the cosmetic bottle body is placed on the supporting plate (10), and the supporting plate (10) moves upwards through the work of the air cylinder (9), so that the cosmetic bottle body is driven to ascend and is positioned between the two groups of arc-shaped plates (67);
s2: the hand wheel (5) is rotated clockwise, the threaded rod (4) is rotated clockwise, the fixed frame (61) is moved leftwards under the guidance of the guide rod (62), the fixed frame is movably connected with the movable block (643) through the bottom plate (65), and the support frame (642) is fixedly arranged, so that the movable block (643) drives the connecting plate (644) to rotate leftwards, the mounting block (645) drives the left strip-shaped frame (646) to move forwards through the connecting plate (644) to move backwards, the right strip-shaped frame (646) moves backwards, the left movable rod (63) is driven to move forwards through the fixed column (647) on the strip-shaped frame (646), the right movable rod (63) moves backwards, the cosmetic bottle body can be fixed through the two groups of arc-shaped plates (67) which are slowly close to each other, after the cosmetic bottle body is screwed, the fixed frame (61) is moved rightwards through the hand wheel (5) which is rotated anticlockwise, the connecting plate (644) is rotated rightwards, so that the two groups of arc-shaped plates (67) can move towards the direction away from each other, and the cosmetic bottle body can be taken down without arranging two groups of cylinders, and the cost is lower;
s3: after the cosmetic bottle body is fixed, a first motor (71) is started, a screw rod (72) is made to rotate, the mounting plate (73) can be driven to lift, the mounting plate (73) moves downwards, a pneumatic three-jaw chuck (77) can be located on a cover body of the cosmetic bottle body, the cover body can be clamped through the work of the pneumatic three-jaw chuck (77), a rotating shaft (76) is driven to rotate reversely through a second motor (75), the pneumatic three-jaw chuck (77) rotates reversely, meanwhile, the first motor (71) rotates through the screw rod (72), the mounting plate (73) moves upwards, and the cover body can be unscrewed from the cosmetic bottle body by controlling the rotating speed of the cover body to be matched with the ascending distance of the mounting plate (73);
s4: when the mounting plate (73) moves downwards, the two groups of rack rods (741) move downwards along with the mounting plate (73) and can drive the two groups of gears (742) to rotate, and because the two groups of gears (742) rotate coaxially, the levelness of the mounting plate (73) during moving can be ensured, the descending speed of the mounting plate (73) can be limited by resistance generated by meshing between the gears (742) and the rack rods (741), the phenomenon that the descending speed of the mounting plate (73) is too high, the pneumatic three-jaw chuck (77) is easily in hard contact with the cover body, the cover body is easily damaged, and subsequent screwing is not facilitated is avoided.
Technical Field
The invention relates to the technical field of cosmetics, in particular to an automatic cosmetic bottle cap screwing mechanism and method.
Background
The cosmetic finished product is manufactured after large-scale raw materials are matched before being manufactured, therefore, a cover body of a raw material bottle needs to be taken down, the cover body of the common raw material bottle is fixed firmly, a cover screwing mechanism needs to be used, the existing cover screwing mechanism generally pushes a clamping plate to clamp through two groups of cylinders when the cosmetic bottle is fixed, two groups of cylinders need to be controlled to clamp when the cosmetic bottle is in work, the cosmetic bottle needs to be loosened by controlling two groups of cylinders when the cosmetic bottle is loosened, the cosmetic bottle is troublesome and high in cost, when the cosmetic bottle is screwed through a pneumatic three-jaw chuck, the pneumatic three-jaw chuck is easy to be in rigid contact with the cover body due to the fact that the driving force of a driving motor is large, the cover body is easy to damage, and subsequent screwing is not facilitated, and therefore, the automatic cover screwing mechanism and the.
Disclosure of Invention
The invention aims to provide an automatic cosmetic bottle screwing mechanism and a method, and aims to solve the problems that the conventional cosmetic bottle screwing mechanism provided in the background art generally pushes a clamping plate to clamp through two groups of cylinders when a cosmetic bottle is fixed, so that the two groups of cylinders need to be controlled to clamp when the cosmetic bottle is in work, and the two groups of cylinders need to be controlled to loosen the cosmetic bottle when the cosmetic bottle is loosened, the cosmetic bottle screwing mechanism is relatively troublesome and high in cost, and when the cosmetic bottle is screwed through a pneumatic three-jaw chuck, the pneumatic three-jaw chuck is easy to generate rigid contact with a cover body due to the fact that the driving force of a driving motor is large, the cover body is easy to damage, and the subsequent cosmetic bottle.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic screw capping mechanism of cosmetic bottle, includes the mount, the bottom of mount is through bolt fixedly connected with base, be provided with the fixed plate on the inner wall of mount, the middle part of fixed plate transversely runs through threaded rod, the right-hand member of threaded rod runs through the mount and is connected with the hand wheel, the left end of threaded rod is rotated through the bearing and is connected with fixed subassembly, the mount is provided with the screw capping subassembly in fixed subassembly's top, the mount is provided with the support in fixed subassembly's below, the top of support is provided with the cylinder, the top fixedly connected with backup pad of cylinder.
Preferably, fixed subassembly includes the fixed frame of being connected through bearing and threaded rod rotation, transversely run through on the fixed frame have two sets of guide arms that the structure is the same, and are two sets of the right-hand member of guide arm all runs through fixed plate fixed connection on the inner wall of mount, run through on the fixed frame has the movable rod, and the movable rod is provided with two sets ofly, two sets of the movable rod all is located the below of guide arm, and is two sets of the movable rod all is connected with drive assembly, and is two sets of the movable rod all runs through both sides around the fixed frame, fixed frame bottom fixedly connected with bottom plate, and the top and the drive assembly swing joint of bottom plate, and is two sets of the front end of movable rod all is provided with the fixed block, and is two sets of the equal fixedly connected with arc of opposite side of fixed block.
Preferably, the drive assembly includes the horizontal pole, the right-hand member of horizontal pole runs through fixed frame fixed connection on the fixed plate, the left end fixedly connected with carriage of horizontal pole, swing joint has the movable block on the carriage, the top of movable block is rotated and is connected with the connecting plate, the top rear side fixedly connected with installation block of connecting plate, the equal fixedly connected with bar frame in both sides of installation block, it is two sets of equal swing joint has the fixed column on the bar frame, and is two sets of the bottom of fixed column sets up respectively on two sets of the movable rod.
Preferably, the screw capping subassembly includes the first motor of fixed connection at the mount top, the power end of first motor bottom is connected with the lead screw, the bottom of lead screw is passed through the bearing frame and is connected with the inner wall rotation of mount, the spiro union has the mounting panel on the lead screw, the right side swing joint of mounting panel has the protection subassembly, the left end of mounting panel extends to the top of fixed frame, the top fixedly connected with second motor of mounting panel, the power end of second motor bottom is connected with the rotation axis, the bottom through mounting panel of rotation axis is connected with pneumatic three-jaw chuck, and pneumatic three-jaw chuck is located the top of fixed frame.
Preferably, the protection subassembly includes the same rack bar of two sets of structures, and is two sets of fixed connection is on both sides around the mounting panel right-hand member respectively for the left end of rack bar, and is two sets of the right side of rack bar all meshes and is connected with the gear, and is two sets of the gear all cup joints in the axis of rotation, the inner wall rotation connection of bearing and mount is passed through to the front end of axis of rotation.
Preferably, the left ends of the two groups of guide rods are provided with external threads, the left ends of the two groups of guide rods are connected with a blocking cover through the external threads, and the blocking cover is provided with an annular anti-skidding sleeve.
Preferably, the bottom of the movable block is attached to the bottom plate, and the two groups of strip-shaped frames are located below the guide rod.
Preferably, the left side fixed connection mount pad of mount, and the top of mount pad is provided with the montant, the top of montant runs through mounting panel fixed connection on the mount.
Preferably, the method for automatically screwing the cover on the cosmetic bottle body specifically comprises the following steps:
s1: the cosmetic bottle body is placed on the supporting plate, and the supporting plate moves upwards through the work of the air cylinder to drive the cosmetic bottle body to ascend and enable the cosmetic bottle body to be located between the two groups of arc-shaped plates;
s2: the hand wheel is rotated clockwise, so that the threaded rod rotates clockwise, the fixed frame moves leftwards under the guidance of the guide rod and is movably connected with the movable block through the bottom plate, and the support frame is fixedly arranged, so that the movable block drives the connecting plate to rotate leftwards, the mounting block drives the left strip-shaped frame to move forwards through the connecting plate to rotate leftwards, the right strip-shaped frame moves backwards, the left movable rod is driven to move forwards through the fixed column on the strip-shaped frame, the right movable rod moves backwards, the cosmetic bottle body can be fixed through the two groups of arc plates which are slowly close to each other, after the cover is screwed, the fixed frame moves rightwards through the anticlockwise rotation of the hand wheel, the connecting plate rotates rightwards, the two groups of arc plates can move towards the direction which is far away from each other, the cosmetic bottle body can be taken down, and two, the cost is low;
s3: after the cosmetic bottle body is fixed, starting a first motor to enable a screw rod to rotate, driving a mounting plate to lift, enabling a mounting plate to move downwards, enabling a pneumatic three-jaw chuck to be located on a cover body of the cosmetic bottle body, clamping the cover body through the work of the pneumatic three-jaw chuck, driving a rotating shaft to rotate reversely through a second motor, enabling the pneumatic three-jaw chuck to rotate reversely, enabling the mounting plate to move upwards through the rotation of the screw rod by the first motor, and screwing the cover body off the cosmetic bottle body by controlling the rotating speed of the cover body to be matched with the lifting distance of the mounting plate;
s4: when the mounting panel moves down, two sets of rack bars can drive two sets of gears to rotate along with the mounting panel moves down, and because two sets of gears are coaxial rotation, levelness when consequently can guarantee the mounting panel and remove, and can restrict the speed that the mounting panel descends because of the resistance that the meshing produced between gear and the rack bar, avoid the mounting panel falling velocity too fast, lead to pneumatic three-jaw chuck to produce rigid contact with the lid easily, lead to the lid to damage easily, be unfavorable for subsequent screw capping.
Compared with the prior art, the invention has the beneficial effects that: the fixing frame can move leftwards or rightwards by rotating the hand wheel clockwise and anticlockwise, the connecting plate can rotate leftwards by moving the fixing frame leftwards, thereby leading the mounting block to drive the left strip-shaped frame to move forwards and the right strip-shaped frame to move backwards, thereby driving the movable rod on the left side to move forwards and the movable rod on the right side to move backwards through the fixed column on the strip-shaped frame, furthermore, the cosmetic bottle body can be fixed by two groups of arc plates which are slowly close to each other, two groups of cylinders are not needed, the cost is lower, and by the coaxial rotation of two groups of gears, the levelness of the mounting plate during moving can be guaranteed, the speed of descending of the mounting plate can be limited due to resistance generated by meshing between the gear and the rack rod, the phenomenon that the descending speed of the mounting plate is too high, the pneumatic three-jaw chuck is prone to rigid contact with the cover body, the cover body is prone to damage, and subsequent screwing is not facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of a fixing assembly according to the present invention;
FIG. 3 is a schematic view of a driving assembly according to the present invention;
fig. 4 is a schematic structural diagram of the protection component of the present invention.
In the figure: 1. a fixed mount; 2. a base; 3. a fixing plate; 4. a threaded rod; 5. a hand wheel; 6. a fixing assembly; 61. a fixing frame; 62. a guide bar; 63. a movable rod; 64. a drive assembly; 641. a cross bar; 642. a support frame; 643. a movable block; 644. a connecting plate; 645. mounting blocks; 646. a bar frame; 647. fixing a column; 65. a base plate; 66. a fixed block; 67. an arc-shaped plate; 7. a screw cap assembly; 71. a first motor; 72. a screw rod; 73. mounting a plate; 74. a protection component; 741. a rack bar; 742. a gear; 743. a rotating shaft; 75. a second motor; 76. a rotating shaft; 77. a pneumatic three-jaw chuck; 8. a support; 9. a cylinder; 10. and a support plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: an automatic cosmetic bottle cap screwing mechanism, please refer to fig. 1, which comprises a fixing frame 1, the bottom of the fixing frame 1 is fixedly connected with a base 2 through a bolt, the base 2 increases the contact area of the fixing frame 1 and the ground, so that the fixing frame 1 is stable when placed, a fixing plate 3 is arranged on the inner wall of the fixing frame 1, a threaded rod 4 transversely penetrates through the middle part of the fixing plate 3, the right end of the threaded rod 4 penetrates through the fixing frame 1 and is connected with a hand wheel 5, the left end of the threaded rod 4 is rotatably connected with a
Referring to fig. 1 and 2, the fixing assembly 6 includes a fixing frame 61 rotatably connected to the threaded rod 4 through a bearing, two sets of guide rods 62 having the same structure transversely penetrate through the fixing frame 61, right ends of the two sets of guide rods 62 both penetrate through the fixing plate 3 and are fixedly connected to an inner wall of the fixing frame 1, the guide rods 62 are used for guiding the fixing frame 61 when moving, two sets of movable rods 63 penetrate through the fixing frame 61, the movable rods 63 are arranged in two sets, the movable rods 63 penetrate through a front and rear direction of the fixing frame 61, the movable rod 63 on the right side is longer than the movable rod 63 on the left side, the two sets of movable rods 63 are arranged below the guide rods 62, the two sets of movable rods 63 are connected to a driving assembly 64, the two sets of movable rods 63 penetrate through front and rear sides of the fixing frame 61, a bottom plate 65 is fixedly connected to a bottom of the fixing frame 61, a top of the bottom plate, and the opposite sides of two sets of fixed blocks 66 all fixedly connected with arc 67, and the opposite side of two sets of arc 67 all is provided with the slipmat, and the slipmat is the rubber pad, can press from both sides tight cosmetic bottle through arc 67.
Referring to fig. 1, 2 and 3, the driving
Referring to fig. 1, the screw cap assembly 7 includes a first motor 71 fixedly connected to the top of the fixing frame 1, a power end of the bottom of the first motor 71 is connected to a lead screw 72, the first motor 71 is connected to a power rotating shaft through a speed reducer, a bottom end of the lead screw 72 is rotatably connected to the inner wall of the fixing frame 1 through a bearing seat, a mounting plate 73 is screwed on the lead screw 72, the lead screw 72 rotates forward and backward through the forward and backward rotation of the first motor 71 to drive the mounting plate 73 to lift, a protection assembly 74 is movably connected to the right side of the mounting plate 73, the left end of the mounting plate 73 extends to the upper side of the fixing frame 61, a second motor 75 is fixedly connected to the top of the mounting plate 73, a power end of the bottom of the second motor 75 is connected to a rotating shaft 76, the second motor 75 is connected to the power rotating shaft through the speed reducer, a bottom end of the rotating shaft, the cover body can be clamped by the pneumatic three-jaw chuck 77, and the rotating shaft 76 is driven to rotate reversely by the second motor 75, so that the pneumatic three-jaw chuck 77 can be driven to rotate reversely.
Referring to fig. 1 and 4, the protection assembly 74 includes two sets of rack rods 741 having the same structure, left ends of the two sets of rack rods 741 are respectively and fixedly connected to front and rear sides of a right end of the mounting plate 73, right sides of the two sets of rack rods 741 are respectively engaged with gears 742, right sides of the rack rods 741 are vertically and uniformly provided with racks, the two sets of gears 742 are sleeved on the rotating shaft 743, a front end of the rotating shaft 743 is rotatably connected with an inner wall of the fixing frame 1 through a bearing, when the mounting plate 73 moves downward, the two sets of rack rods 741 move downward along with the mounting plate 73 and can drive the two sets of gears 742 to rotate, resistance generated by engagement between the gears 742 and the rack rods 741 can limit a descending speed of the mounting plate 73, and the mounting plate 73 is.
Referring to fig. 1 and 2, the left ends of the two sets of
Referring to fig. 1, the bottom of the
Referring to fig. 1, the left side of the fixing frame 1 is fixedly connected to the mounting base, a vertical rod is disposed at the top of the mounting base, the top end of the vertical rod penetrates through the mounting plate 73 and is fixedly connected to the fixing frame 1, and the vertical rod is disposed to further guide the mounting plate 73.
A method for an automatic cosmetic bottle capping mechanism comprises the following steps:
s1: the cosmetic bottle body is placed on the supporting plate 10, and the supporting plate 10 moves upwards through the work of the air cylinder 9, so that the cosmetic bottle body is driven to ascend and is positioned between the two groups of arc-shaped
s2: the hand wheel 5 is rotated clockwise, so that the threaded rod 4 rotates clockwise, so that the fixed frame 61 moves leftwards under the guidance of the guide rod 62, is movably connected with the movable block 643 through the bottom plate 65, and because the supporting frame 642 is fixedly arranged, when the fixed frame 61 moves leftwards, the right side of the movable block 643 moves backwards along the inner wall of the right side of the supporting frame 642, so that the movable block 643 drives the connecting plate 644 to rotate leftwards, the connecting plate 644 rotates leftwards, the mounting block 645 drives the left strip-shaped frame 646 to move forwards, the right strip-shaped frame 646 moves backwards, the fixed column 647 on the strip-shaped frame 646 drives the left movable rod 63 to move forwards, the right movable rod 63 moves backwards, the cosmetic bottle body is fixed through the two groups of arc-shaped plates 67 which are slowly close to each other, after the cover is screwed, the hand wheel 5 is rotated anticlockwise, so that the fixed frame 61, the connecting plate 644 rotates rightwards, so that the two groups of arc-shaped plates 67 move towards the direction away from each other, and the cosmetic bottle body can be taken down without arranging two groups of cylinders, and the cost is low;
s3: after the cosmetic bottle body is fixed, the first motor 71 is started, the screw rod 72 can rotate forward and backward through forward and backward rotation of the first motor 71, the mounting plate 73 can be driven to lift, the mounting plate 73 moves downwards, the pneumatic three-jaw chuck 77 can be located on the cover body of the cosmetic bottle body, the cover body can be clamped through the work of the pneumatic three-jaw chuck 77, the second motor 75 drives the rotating shaft 76 to rotate reversely, the pneumatic three-jaw chuck 77 rotates reversely, meanwhile, the first motor 71 rotates through the screw rod 72, the mounting plate 73 moves upwards, and the cover body can be unscrewed from the cosmetic bottle body by controlling the rotating speed of the cover body to be matched with the lifting distance of the mounting plate 73;
s4: when the mounting plate 73 moves downwards, the two sets of rack rods 741 move downwards along with the mounting plate 73, the two sets of gears 742 can be driven to rotate through the meshed relation between the two sets of rack rods 741 and the gears 742, and because the two sets of gears 742 both rotate on the rotating shafts 743 and rotate coaxially, the levelness of the mounting plate 73 during moving can be ensured, so that the accuracy of screwing can be improved, the descending speed of the mounting plate 73 can be limited due to the resistance generated by meshing between the gears 742 and the rack rods 741, the phenomenon that the descending speed of the mounting plate 73 is too high is avoided, the pneumatic three-jaw chuck 77 is easily in hard contact with the cover body, the cover body is easily damaged, and the subsequent screwing is not facilitated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
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