Crank arm lifting mechanism assembling device for electric clothes hanger

Abstract

The invention relates to the technical field of shear fork arm assembling, and particularly discloses a crank arm lifting mechanism assembling device for an electric clothes hanger, which comprises a feeding mechanism, a riveting mechanism, a discharging mechanism, a guide rail and a moving trolley, the feeding mechanism comprises a feeding box I and a feeding box II, a containing groove for placing a lower shear fork arm is formed in the feeding box I, and a riveting mechanism is arranged in the containing groove; first baffles are symmetrically arranged on the two sides of the containing groove, second baffles are correspondingly arranged below the first baffles, a first driving assembly for driving the first baffles to move and a second driving assembly for driving the second baffles to move are arranged in the first feeding box, the second feeding box and the first feeding box are the same in structure, and the containing groove in the second feeding box is used for containing an upper shear fork arm. A positioning frame is arranged on the moving trolley, and clamping grooves corresponding to the lower shear fork arm and the upper shear fork arm are formed in the positioning frame. According to the crank arm lifting mechanism assembling device for the electric clothes hanger, the feeding mechanism is simple in structure, the production cost and the maintenance cost are relatively low, the feeding process is convenient and rapid, and the assembling efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of scissor arm assembly, and in particular to an assembly device of a curved arm lifting mechanism for an electric clothes drying rack. Background Art

[0002] The scissor structure in the crank arm lifting mechanism of the electric clothes drying rack is a key component for realizing its lifting function. The scissor structure usually includes an upper scissor arm and a lower scissor arm, which are connected together through a hinge point to form a retractable and foldable lifting mechanism. With the development of technology, intelligent assembly production lines are usually used to assemble the scissor structure in the crank arm lifting mechanism.

[0003] A Chinese patent application document with publication number CN114310349A discloses an intelligent clothes drying rack telescopic connecting rod assembly production line, including a mounting platform and a conveyor line fixed on the mounting platform, a gasket feeding mechanism, a scissor blade feeding mechanism, a transfer mechanism, an automatic riveting press and a feeding mechanism. The scissor blade feeding mechanism includes a scissor blade stacking mechanism and a conveying module. The scissor blade stacking mechanism includes a bottom plate, a driving assembly, a material shifting plate and a material storage bin. A material storage trough is provided on one side of the upper end surface of the material shifting plate. The conveying module includes a bracket, a transverse movement module, a lifting module, a connecting frame and a suction cup assembly.

[0004] When the scissor blades are assembled in the above technical scheme, the driving component drives the material transfer plate to slide, and by aligning the material trough with the bottom of the material bin, the scissor blades fall into the material trough. Then the driving component drives the material transfer plate to move, so that half of the material transfer plate blocks the bottom of the material bin, and the other half with the material trough is exposed from the bottom of the material bin. Then the scissor blades in the material trough are moved to the jig on the conveyor line through the suction cup assembly.

[0005] Although the above application documents realize automatic assembly of scissor blades, the scissor blade feeding mechanism includes many components and a complex structure, with high production and maintenance costs, and it is necessary to drive each component to cooperate in order to realize feeding, resulting in low assembly efficiency. In addition, in the process of the suction cup assembly moving the scissor blade to the jig, the position of the scissor blade is easily affected by unexpected external factors and changes, resulting in the scissor blade being unable to be placed in the jig according to the preset position, further affecting the assembly efficiency.

[0006] Therefore, the art needs an assembly device for a crank arm lifting mechanism for an electric clothes drying rack to solve the above problems. Summary of the invention

[0007] The present invention provides an assembly device for a crank arm lifting mechanism for an electric clothes drying rack, aiming to solve the problems in the related art that the scissor blade feeding mechanism includes numerous components, a complex structure, high production and maintenance costs, a cumbersome feeding process, and low assembly efficiency.

[0008] The present invention discloses an assembly device of a crank arm lifting mechanism for an electric clothes drying rack, comprising a feeding mechanism, a riveting mechanism, a feeding mechanism, a guide rail and a movable trolley arranged on the guide rail, wherein the feeding mechanism comprises a feeding box 1 and a feeding box 2, wherein a receiving groove for placing a lower scissor arm is arranged in the feeding box 1, two baffle plates 1 are symmetrically arranged on both sides of the bottom of the receiving groove, and baffle plates 2 are respectively arranged below the two baffle plates 1, and a driving component 1 for driving the two baffle plates 1 to move toward or away from each other and a driving component 2 for driving the baffle plates 2 to move toward or away from each other are arranged in the feeding box 1, and the feeding box 2 has the same structure as the feeding box 1, and the receiving groove in the feeding box 2 is used for placing the upper scissor arm; Positioning frames are evenly spaced on the mobile trolley, and slots corresponding to the lower scissor arms and the upper scissor arms are opened on the positioning frames. When the positioning frame passes under the loading box 1, the driving component 1 drives the two baffles 1 to be inserted between the two upper and lower adjacent lower scissor arms, and the driving component 2 drives the two baffles 2 to move away from each other from the bottom of the lower scissor arms, and the lower scissor arms at the bottom fall into the corresponding slots. When the positioning frame passes under the loading box 2, the baffle 1 is inserted between the two upper and lower adjacent upper scissor arms, and the two baffles 2 move away from each other from the bottom of the upper scissor arms, and the upper scissor arms at the bottom fall into the corresponding slots.

[0009] When the mobile trolley passes through the bottom of the loading box one and the loading box two, the lower scissor fork arm and the upper scissor fork arm can be lowered in sequence, not only without causing interference, but also the loading mechanism has a simple structure, the production cost and the maintenance cost are relatively low, the loading process is convenient and fast, and the assembly efficiency is high. In addition, the upper scissor fork arm and the lower scissor fork arm directly fall into the corresponding slots on the positioning frame, avoiding the problem of misalignment caused by other external factors during the loading process.

[0010] Preferably, a pressing mechanism is respectively provided at both ends of the accommodating groove, and the pressing mechanism includes a pressing plate, a driving member 1 for driving the pressing plate to move up and down, and a driving member 2 for driving the two pressing plates to move toward or away from each other. When the baffle plate 2 moves away from each other until it is separated from the lower scissor arm or the upper scissor arm at the bottom, the driving member 1 drives the pressing plate to press the corresponding lower scissor arm or the upper scissor arm downward.

[0011] After the lower scissor arm and the upper scissor arm lose the support of the baffle plate 2, they fall into the slot on the positioning frame by their own gravity. During the falling process, the lower scissor arm and the upper scissor arm may be skewed. The upper scissor arm or the lower scissor arm is pressed downward by the pressing plate so that the upper scissor arm or the lower scissor arm can fall into the slot quickly to avoid the upper scissor arm and the lower scissor arm from skewed during the falling process.

[0012] Preferably, driving component 2 includes spring 2, gear 2 rotatably connected to feeding box 1 and rack 2 symmetrically arranged on the upper and lower sides of gear 2, two baffles 2 are elastically connected to feeding box 1 through spring 2, and the two baffles 2 are fixedly connected to corresponding rack 2, respectively. The travel direction of the moving trolley when passing under feeding box 1 is defined as the right side, and a pushing block is fixedly connected to the top of the positioning frame, and a protrusion is fixedly connected to the bottom of baffle 2 located on the right side of the accommodating groove, and when the pushing block pushes the protrusion to drive baffle 2 on the right side to move, baffle 2 drives baffle 2 on the left side to move away from each other through rack 2 and gear 2.

[0013] By arranging a pushing block on the positioning frame that cooperates with the bottom protrusion of the baffle plate 2, when the positioning frame passes through the loading box 1 and the loading box 2, the two baffle plates 2 can be automatically triggered to move away from each other, thereby canceling the support for the lower scissor arm and the upper scissor arm. The coordination is ingenious and the loading is quick.

[0014] Preferably, a driving assembly includes a spring, two gears rotatably connected to a loading box, and a rack located above the gear. The gear is meshed with a corresponding rack. Two baffles are elastically connected to the loading box through springs, and the two baffles are fixedly connected to the corresponding rack. When the two baffles move away from each other, the two baffles are driven to move toward each other through rack, gear and rack.

[0015] Preferably, the two baffle plates 1 are provided with a first inclined surface extending to the upper end surface on one side facing each other, and the two baffle plates 2 are provided with a second inclined surface extending to the upper end surface on one side facing each other.

[0016] The setting of the inclined surface 1 facilitates the smooth insertion of the baffle 1 between the upper and lower adjacent scissor fork arms or lower scissor fork arms; when the two baffles 2 move away from each other, the setting of the inclined surface 2 is conducive to the smooth separation of the upper scissor fork arm or the lower scissor fork arm from the baffle 2.

[0017] Preferably, driving member one includes gear three and rack three, gear three is coaxially connected to gear two, a sliding rod extending vertically is fixedly connected inside feeding box one, rack three is fixedly connected to a mounting plate slidably connected to the sliding rod, and rack three is meshed with gear three, and the pressing plate is connected to a slide plate slidably connected to the sliding rod, and the slide plate is located above the mounting plate and is elastically connected to the mounting plate through spring three.

[0018] Preferably, the second driving member includes a guide plate fixedly connected to the feeding box one, a guide groove in the shape of a right-angled triangle is provided on the guide plate, a one-way blocking structure is provided in the guide groove, the pressing plate and the slide plate are slidably matched and elastically connected by spring four, a guide block extending into the guide groove is fixedly connected to the pressing plate, when the pressing plate moves downward, the guide block moves downward along one of the right-angled sides of the guide groove, when the pressing plate moves upward, the one-way blocking structure guides the guide block to move upward along the hypotenuse of the guide groove, the guide block drives the pressing plate to squeeze spring four, when the guide block moves along the hypotenuse of the guide groove to the other right-angled side, the spring four pushes the guide block to drive the pressing plate to insert between the upper scissor fork arm or the lower scissor fork arm.

[0019] Preferably, the positioning frame is slidably connected to the moving trolley along the traveling direction of the moving trolley, a distance adjustment component is arranged between two adjacent positioning frames, both ends of the accommodating groove are elastically connected with clamping plates, and the upper scissor arm or the lower scissor arm is placed between the two clamping plates.

[0020] The distance between two adjacent positioning frames is adjusted by the distance adjustment component, so that the positioning frames can adapt to the assembly of upper scissor arms and lower scissor arms of different lengths, thereby improving the applicability of the present invention.

[0021] Preferably, the distance adjusting assembly includes a scissor structure rotatably connected to the positioning frame, the scissor structure includes a scissor arm 1 and a scissor arm 2, the scissor structures on two adjacent positioning frames are hinged, and the moving trolley is provided with a slide groove perpendicular to its travel direction, and the scissor arm 1 and the scissor arm 2 on the positioning frame at one end slide in cooperation with the slide groove, and the moving trolley is provided with an electric push cylinder, which drives the positioning frame to move along the travel direction of the moving trolley.

[0022] Preferably, a positioning plate is provided between the guide rail and the feeding mechanism and the riveting mechanism. The positioning plates are symmetrically arranged on both sides of the moving trolley and are slidably connected to the guide rail. A driving member three is provided on the guide rail for driving the two positioning plates to move towards or away from each other. An arc-shaped guide surface is provided at one end of the positioning plate facing the feeding mechanism. When the two ends of the upper scissor fork arm or the lower scissor fork arm on the moving trolley contact with the arc-shaped guide surface, the arc-shaped guide surface squeezes the upper scissor fork arm or the lower scissor fork arm to be centrally arranged on the positioning frame.

[0023] The beneficial effects of the present invention are as follows: when the mobile trolley passes through the bottom of the loading box one and the loading box two, the lower scissor arm and the upper scissor arm can be lowered in sequence, and the lowering of the lower scissor arm and the upper scissor arm will not cause interference, and the loading mechanism has a simple structure, and the production cost and maintenance cost are relatively low. The loading process is convenient and fast, and the assembly efficiency is high. In addition, the upper scissor arm and the lower scissor arm fall directly into the corresponding slots on the positioning frame, avoiding the problem of misalignment caused by other external factors during the loading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1The present invention is a partial structural schematic diagram of an assembly device of a crank arm lifting mechanism for an electric clothes drying rack.

[0025] Figure 2 The present invention is a cross-sectional view of a loading box 2 of an assembly device of a crank arm lifting mechanism for an electric clothes drying rack.

[0026] Figure 3 The present invention is a structural schematic diagram of a mobile trolley of a crank arm lifting mechanism assembly device for an electric clothes drying rack.

[0027] Figure 4 The utility model is a schematic diagram of assembling a positioning frame and a moving trolley of an assembly device of a crank arm lifting mechanism for an electric clothes drying rack of the present invention.

[0028] Figure 5 The present invention is a schematic diagram of the structure of the drive assembly 1 and the drive assembly 2 of the crank arm lifting mechanism assembly device for the electric clothes drying rack Figure 1 .

[0029] Figure 6 The present invention is a schematic diagram of the structure of the drive assembly 1 and the drive assembly 2 of the crank arm lifting mechanism assembly device for the electric clothes drying rack Figure 2 .

[0030] Figure 7 The present invention is a schematic diagram of the structure of the driving member 1 and the driving member 2 of the crank arm lifting mechanism assembly device for the electric clothes drying rack Figure 1 .

[0031] Figure 8 The present invention is a schematic diagram of the structure of the driving member 1 and the driving member 2 of the crank arm lifting mechanism assembly device for the electric clothes drying rack Figure 2 .

[0032] Fig. 9 The utility model is a schematic diagram of assembling a guide plate and a pressing plate of an assembly device of a crank arm lifting mechanism for an electric clothes drying rack according to the present invention.

[0033] Fig.10 The invention discloses an assembly diagram of a positioning plate and a guide rail of a crank arm lifting mechanism assembly device for an electric clothes drying rack.

[0034] Reference numerals: 1. Guide rail; 2. Mobile trolley; 21. Positioning frame; 22. Slot; 23. Push block; 24. Slide; 25. Electric push cylinder; 3. Riveting mechanism; 31. Mounting frame; 4. Loading box 1; 41. Lower shear fork arm; 5. Loading box 2; 51. Upper shear fork arm; 52. Accommodating slot; 53. Slide bar; 54. Guide plate; 55. Guide slot; 56. Clamping plate; 6. Baffle 1; 61. Spring Spring one; 62, gear one; 63, rack one; 64, inclined plane one; 7, baffle two; 71, spring two; 72, gear two; 73, rack two; 74, bump; 75, inclined plane two; 8, pressing plate; 81, gear three; 82, rack three; 83, mounting plate; 84, slide plate; 85, spring three; 86, spring four; 9, scissor arm one; 91, scissor arm two; 10, positioning plate. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figures 1 to 10 As shown, an assembly device of a crank arm lifting mechanism for an electric clothes drying rack of the present invention comprises a feeding mechanism, a riveting mechanism 3, a unloading mechanism, a guide rail 1 and a moving trolley 2 arranged on the guide rail 1. The guide rail 1 is a closed runway-shaped structure, comprising two arc-shaped portions and a straight portion connecting the two arc-shaped portions, and the feeding mechanism, the riveting mechanism 3 and the unloading mechanism are arranged on one of the straight portions. The moving trolley 2 circulates along the guide rail 1 to achieve repetitive work. The riveting mechanism 3 comprises a mounting frame 31 and an automatic riveting machine (not shown in the figure) arranged on the mounting frame 31, and the unloading mechanism comprises a suction cup assembly (not shown in the figure) arranged next to the guide rail 1 and a driving mechanism (not shown in the figure) for driving the suction cup assembly to move. The automatic riveting machine, the suction cup assembly and the driving mechanism are prior art and will not be described in detail here.

[0037] The moving direction of the mobile car 2 when passing under the feeding mechanism is defined as the right side. The feeding mechanism includes a feeding box 1 4 and a feeding box 2 5 arranged from left to right, a receiving slot 52 for placing the lower scissor arm 41 is arranged in the feeding box 1 4, and a receiving slot 52 for placing the upper scissor arm 51 is arranged in the feeding box 2 5. The structures in the feeding box 1 4 and the feeding box 2 5 are the same, and are symmetrical about the vertical plane where the midpoint between the feeding box 1 4 and the feeding box 2 5 is located.

[0038] like Figure 2 and Figure 5As shown, two baffle plates 6 are symmetrically arranged on both sides of the bottom of the accommodating groove 52, and baffle plates 2 7 are respectively arranged below the two baffle plates 6. A driving component 1 for driving the two baffle plates 6 to move toward or away from each other and a driving component 2 for driving the baffle plates 2 7 to move toward or away from each other are arranged in the loading box 4.

[0039] like Figure 1 , Figure 3 and Figure 5 As shown, the mobile trolley 2 is evenly spaced with positioning frames 21, and the positioning frames 21 are provided with slots 22 corresponding to the lower scissor arms 41 and the upper scissor arms 51. When the positioning frame 21 passes under the loading box 1 4, the driving component 1 in the loading box 1 4 drives the two baffles 1 6 to be inserted between the two lower scissor arms 41 adjacent to each other, and the driving component 2 drives the two baffles 2 7 from the bottom of the lower scissor arms 41 to move away from each other, and the lower scissor arms 41 at the bottom fall into the corresponding slots 22; when the positioning frame 21 passes under the loading box 2 5, the driving component 1 in the loading box 2 5 drives the baffle 1 6 to be inserted between the two upper scissor arms 51 adjacent to each other, and the driving component 2 drives the two baffles 2 7 from the bottom of the upper scissor arms 51 to move away from each other, and the upper scissor arms 51 at the bottom fall into the corresponding slots 22.

[0040] According to the present invention, when the mobile trolley 2 passes through the bottom of the loading box 1 4 and the loading box 2 5, the lower scissor arm 41 and the upper scissor arm 51 can be lowered in sequence, not only without causing interference, but also the loading mechanism has a simple structure, and the production cost and maintenance cost are relatively low. The loading process is convenient and fast, and the assembly efficiency is high. In addition, the upper scissor arm 51 and the lower scissor arm 41 directly fall into the corresponding slots 22 on the positioning frame 21, avoiding the problem of misalignment caused by other external factors during the loading process.

[0041] like Figure 2 , Figures 4 to 6As shown, the upper material box 2 5 is described as an example, and the driving assembly 2 includes a spring 2 71, a gear 2 72 rotatably connected to the upper material box 2 5, and a rack 2 73 symmetrically arranged on the upper and lower sides of the gear 2 72. The two baffles 2 7 are elastically connected to the upper material box 2 5 through the spring 2 71 on the sides facing away from each other, and the two baffles 2 7 are fixedly connected to the corresponding rack 2 73. The bottom of the baffle 2 7 located on the right side of the receiving groove 52 is fixedly connected with a protrusion 74, and the top of the positioning frame 21 is fixedly connected with a push block 23 that matches the position of the protrusion 74. When the positioning frame 21 passes under the loading box 25 and the pushing block 23 on its top contacts the protrusion 74, the pushing block 23 pushes the protrusion 74 to drive the baffle 27 on the right side to move, and the baffle 27 on the right side drives the baffle 27 on the left side to move away from each other through the rack 273 and the gear 272. The upper scissor arm 51 at the bottom loses the support of the two baffles 27 and automatically falls into the slot 22 on the positioning frame 21.

[0042] Since the accommodating groove 52 is tilted according to the inclination angle of the upper scissor arm 51, the moving direction of the baffle plate 27 is perpendicular to the accommodating groove 52. Therefore, when the moving trolley 2 moves to the right, there is an angle between the moving direction of the pushing block 23 and the moving direction of the baffle plate 27. As the moving trolley 2 moves, the pushing block 23 will disengage from the protrusion 74, and the baffle plate 27 will automatically reset under the elastic force of the spring 2 71, and re-form support under the upper scissor arm 51.

[0043] It is understandable that in other embodiments, the pushing block 23 can also be slidably matched with the positioning frame 21 in the vertical direction and elastically connected, and an inclined wedge surface is set on the top of the pushing block 23. After the pushing block 23 pushes the baffle 27 into place through the protrusion 74, the protrusion 74 squeezes the inclined wedge surface of the pushing block 23 to make the pushing block 23 move downward. After the pushing block 23 is separated from the squeezing of the protrusion 74, the pushing block 23 automatically pops out.

[0044] The driving assembly 1 includes a spring 161, two gears 162 rotatably connected to the feeding box 25, and a rack 163 located above the gear 162. The gear 162 is located above the corresponding rack 273 and meshes with the corresponding rack 273. The two baffles 16 are elastically connected to the feeding box 25 on the sides away from each other through the spring 161, and the two baffles 16 are fixedly connected to the corresponding rack 163. When the two baffles 27 move away from each other, the rack 273, the gear 162 and the rack 163 drive the two baffles 16 to move toward each other, so that when the baffle 27 is opened, the baffle 16 supports the upper scissor arm 51. When the baffle 27 is reset, the baffle 16 opens, so that the upper scissor arm 51 moves downward to the baffle 27, waiting for the next feeding. The distance between the baffle 16 and the baffle 27 is just enough to accommodate an upper scissor arm 51.

[0045] The two baffles 1 6 are provided with an inclined surface 64 extending to the upper end surface on one side facing each other, so as to facilitate the smooth insertion of the baffle 1 6 between the upper and lower adjacent scissor arms 51. The two baffles 2 7 are provided with an inclined surface 75 extending to the upper end surface on one side facing each other, so as to facilitate the smooth separation of the upper scissor arms 51 and the baffles 2 7 when the two baffles 2 7 move away from each other.

[0046] like Figure 5 and Figure 7 As shown, after the upper scissor arm 51 loses the support of the baffle plate 27, it falls into the slot 22 on the positioning frame 21 by its own gravity. During the falling process, the upper scissor arm 51 may be skewed. In order to make the upper scissor arm 51 fall smoothly into the slot 22, in this embodiment, a pressing mechanism is respectively provided at both ends of the accommodating slot 52, and the pressing mechanism includes a pressing plate 8, a driving member 1 for driving the pressing plate 8 to move up and down, and a driving member 2 for driving the two pressing plates 8 to move toward or away from each other. When the baffle plate 27 moves away from each other to the upper scissor arm 51 that is separated from the bottom, the driving member 1 drives the pressing plate 8 to press the corresponding upper scissor arm 51 downward, so that the upper scissor arm 51 falls quickly into the slot 22, and at the same time, the upper scissor arm 51 is prevented from being skewed during the falling process.

[0047] like Figure 7 and Figure 8 As shown, the driving member 1 includes a gear 3 81 and a rack 3 82, the gear 3 81 is coaxially fixedly connected to the gear 2 72, a sliding rod 53 extending vertically is fixedly connected inside the loading box 2 5, the rack 3 82 is fixedly connected to a mounting plate 83 slidably connected to the sliding rod 53, and the rack 3 82 is meshed with the gear 3 81, and the pressing plate 8 is connected to a slide plate 84 slidably connected to the sliding rod 53, and the slide plate 84 is located above the mounting plate 83 and is elastically connected to the mounting plate 83 through a spring 3 85. The pressing plate 8 is inserted above the upper scissor arm 51 at the bottom. When the two baffles 27 move away from each other, the gear 2 72 drives the gear 3 81 to rotate synchronously, and the gear 3 81 drives the mounting plate 83 to move downward along the slide bar 53 through the rack 3 82. Since the pressing plate 8 is inserted above the upper scissor arm 51, before the two baffles 27 are fully opened to both sides, the pressing plate 8 and the connected slide plate 84 cannot move. Therefore, when the mounting plate 83 moves downward, the spring 3 85 is stretched and stored. When the upper scissor arm 51 at the bottom loses the support of the baffle 27, the elastic force of the spring 3 85 causes the slide plate 84 to drive the pressing plate 8 to move downward, and the pressing plate 8 squeezes the upper scissor arm 51 and quickly falls into the slot 22.

[0048] like Figure 8 and Fig. 9As shown, the driving member 2 includes a guide plate 54 fixedly connected to the feeding box 2 5, and a guide groove 55 in the shape of a right triangle is provided on the guide plate 54. A one-way blocking structure is arranged in the guide groove 55. The guide groove 55 includes a vertical right-angled side 1, a horizontal right-angled side 2 and a hypotenuse. The one-way blocking structure includes a stopper (not shown in the figure) rotatably connected to the guide groove 55, and a torsion spring (not shown in the figure) is arranged at the rotation connection. The stopper is arranged at the intersection of the right-angled side 1 and the hypotenuse. The pressing plate 8 is slidably matched with the slide plate 84 and elastically connected by the spring 4 86. A guide block (not shown in the figure) extending into the guide groove 55 is fixedly connected to the pressing plate 8. The stopper allows the guide block to move along the right-angled side 1 over the stopper to the position corresponding to the hypotenuse.

[0049] When the pressing plate 8 moves downward under the elastic force of the spring 3 85, the guide block moves vertically downward along the right angle side 1 of the guide slot 55 and moves over the stopper to a position corresponding to the oblique side of the guide slot 55. When the two baffles 2 7 move and reset in the direction of approaching each other, the gear 2 72 drives the gear 3 81 to rotate synchronously, and the gear 3 81 drives the mounting plate 83 to move upward along the slide bar 53 through the rack 3 82. The mounting plate 83 drives the pressing plate 8 to move upward through the spring 3 85 and the slide plate 84. The stopper prevents the guide block from moving upward along the right angle side 1 and guides the guide block to move along the oblique side of the guide slot 55. In the process of the guide block moving upward along the oblique side, the pressing plate 8 is driven to squeeze the spring 4 86. When the guide block moves along the oblique side of the guide slot 55 to the right angle side 2, the elastic force of the spring 4 86 pushes the guide block to drive the pressing plate 8 to insert above the upper scissor arm 51 at the bottom.

[0050] like Figure 1 , Figure 3 and Figure 4 As shown, the positioning frame 21 is slidably connected to the moving trolley 2 along the left-right direction, a distance adjustment component is provided between two adjacent positioning frames 21, and clamping plates 56 are elastically connected to the two ends of the accommodating groove 52, and the upper scissor arm 51 is placed between the two clamping plates 56. The distance between the two adjacent positioning frames 21 is adjusted by the distance adjustment component, so that the positioning frame 21 can adapt to the assembly of upper scissor arms 51 and lower scissor arms 41 of different lengths, thereby improving the applicability of the present invention.

[0051] The distance adjustment component includes a scissor structure rotatably connected to each positioning frame 21, and the scissor structure includes a scissor arm 1 9 and a scissor arm 2 91, and the scissor structures on two adjacent positioning frames 21 are hinged. A slide 24 extending in the front-to-back direction is provided on the mobile trolley 2, and the scissor arm 1 9 and the scissor arm 2 91 on the positioning frame 21 at the left end are respectively slidably matched with the slide 24. An electric push cylinder 25 is fixedly connected to the mobile trolley 2, and the driving end of the electric push cylinder 25 is fixedly connected to the positioning frame 21 at the left end. When the electric push cylinder 25 drives the positioning frame 21 at the left end to move to the left, the positioning frame 21 will squeeze the scissor arm 1 9 and the scissor arm 2 91 to move away from each other in the slide 24, so that the angle between the scissor arm 1 9 and the scissor arm 2 91 becomes larger, thereby realizing that the spacing between the positioning frames 21 is adjusted to be equal distance smaller, and vice versa.

[0052] like Figure 1 and Fig.10 As shown, the guide rail 1 is provided with a positioning plate 10 between the feeding mechanism and the riveting mechanism 3. The positioning plates 10 are symmetrically arranged on both sides of the moving trolley 2 and are slidably connected with the guide rail 1 along the front-back direction. The guide rail 1 is provided with a driving member 3 (not shown in the figure) for driving the two positioning plates 10 to move toward or away from each other. As an example, the driving member 3 is an electric push rod, which controls the electric push rod to drive the positioning plates 10 to move according to the length of the upper scissor arm 51 and the lower scissor arm 41, so that the distance between the two positioning plates 10 is adapted to the distance between the front and rear ends of the upper scissor arm 51 or the lower scissor arm 41 when it is in the slot 22. An arc-shaped guide surface (not shown in the figure) is provided at one end of the positioning plate 10 facing the feeding mechanism. When the two ends of the upper scissor arm 51 or the lower scissor arm 41 on the moving trolley 2 contact the arc-shaped guide surface, the arc-shaped guide surface squeezes the upper scissor arm 51 or the lower scissor arm 41 to be centrally arranged on the positioning frame 21.

[0053] In the description of the present invention, it should 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" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] 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.

[0055] 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. An assembly device for a crank arm lifting mechanism for an electric clothes drying rack, comprising a loading mechanism, a riveting mechanism (3), a unloading mechanism, a guide rail (1) and a moving trolley (2) arranged on the guide rail (1), characterized in that: The feeding mechanism comprises a feeding box 1 (4) and a feeding box 2 (5), wherein a receiving groove (52) for receiving the lower scissor arm (41) is arranged in the feeding box 1 (4), two baffles 1 (6) are symmetrically arranged on both sides of the bottom of the receiving groove (52), and baffles 2 (7) are arranged respectively below the two baffles 1 (6), and a driving component 1 for driving the two baffles 1 (6) to move toward or away from each other and a driving component 2 for driving the baffles 2 (7) to move toward or away from each other are arranged in the feeding box 1 (4), and the feeding box 2 (5) has the same structure as the feeding box 1 (4), and the receiving groove (52) in the feeding box 2 (5) is used to receive the upper scissor arm (51), move Positioning frames (21) are evenly spaced on the trolley (2), and slots (22) corresponding to the lower scissor arms (41) and the upper scissor arms (51) are formed on the positioning frames (21). When the positioning frames (21) pass under the first loading box (4), the driving component drives the two baffles (6) to be inserted between the two upper and lower adjacent lower scissor arms (41). The driving component drives the two baffles (7) to move away from each other from the bottom of the lower scissor arms (41), and the lower scissor arms (41) at the bottom fall into the corresponding slots (22). When the positioning frames (21) pass under the second loading box (5), the upper scissor arms (51) fall into the corresponding slots (22).

2. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 1, characterized in that: A pressing mechanism is provided at both ends of the accommodating groove (52), the pressing mechanism comprising a pressing plate (8), a driving member 1 for driving the pressing plate (8) to move up and down, and a driving member 2 for driving the two pressing plates (8) to move towards or away from each other. When the baffle plate 2 (7) moves in a direction away from each other until it is separated from the lower scissor arm (41) or the upper scissor arm (51) at the bottom, the driving member 1 drives the pressing plate (8) to press downward the corresponding lower scissor arm (41) or the upper scissor arm (51).

3. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 2, characterized in that: The driving assembly 2 comprises a spring 2 (71), a gear 2 (72) rotatably connected to the loading box 1 (4), and a rack 2 (73) symmetrically arranged on the upper and lower sides of the gear 2 (72); the two baffles 2 (7) are elastically connected to the loading box 1 (4) through the spring 2 (71), and the two baffles 2 (7) are fixedly connected to the corresponding rack 2 (73), and the moving direction of the moving trolley (2) when passing under the loading box 1 (4) is defined as the right side; the top of the positioning frame (21) is fixedly connected with a pushing block (23); the bottom of the baffle 2 (7) located on the right side of the accommodating groove (52) is fixedly connected with a protrusion (74); when the pushing block (23) pushes the protrusion (74) to drive the baffle 2 (7) on the right side to move, the baffle 2 (7) drives the baffle 2 (7) on the left side to move in a direction away from each other through the rack 2 (73) and the gear 2 (72).

4. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 3, characterized in that: The driving assembly 1 comprises a spring 1 (61), two gears 1 (62) rotatably connected to a loading box 1 (4), and a rack 1 (63) located above the gear 1 (62); the gear 1 (62) is meshed with a corresponding rack 2 (73); the two baffles 1 (6) are elastically connected to the loading box 1 (4) through the spring 1 (61), and the two baffles 1 (6) are fixedly connected to the corresponding rack 1 (63); when the two baffles 2 (7) move in a direction away from each other, the rack 2 (73), the gear 1 (62) and the rack 1 (63) drive the two baffles 1 (6) to move in a direction close to each other.

5. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 4, characterized in that: The two baffle plates 1 (6) are provided with a first inclined surface (64) extending to the upper end surface on one side facing each other, and the two baffle plates 2 (7) are provided with a second inclined surface (75) extending to the upper end surface on one side facing each other.

6. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 4, characterized in that: The driving member 1 includes a gear 3 (81) and a rack 3 (82), the gear 3 (81) is coaxially connected to the gear 2 (72), a sliding rod (53) extending vertically is fixedly connected inside the loading box 1 (4), the rack 3 (82) is fixedly connected to a mounting plate (83) slidably connected to the sliding rod (53), and the rack 3 (82) is meshed with the gear 3 (81), the pressing plate (8) is connected to a slide plate (84) slidably connected to the sliding rod (53), and the slide plate (84) is located above the mounting plate (83) and is elastically connected to the mounting plate (83) through a spring 3 (85).

7. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 6, characterized in that: The second driving member comprises a guide plate (54) fixedly connected to the first feeding box (4), a guide groove (55) in the shape of a right triangle is provided on the guide plate (54), a one-way blocking structure is provided in the guide groove (55), the pressing plate (8) and the sliding plate (84) are slidably matched and elastically connected through a spring four (86), a guide block extending into the guide groove (55) is fixedly connected to the pressing plate (8), when the pressing plate (8) moves downward, the guide block moves downward along one of the right-angled sides of the guide groove (55), when the pressing plate (8) moves upward, the one-way blocking structure guides the guide block to move upward along the oblique side of the guide groove (55), the guide block drives the pressing plate (8) to squeeze the spring four (86), when the guide block moves along the oblique side of the guide groove (55) to the other right-angled side, the spring four (86) pushes the guide block to drive the pressing plate (8) to be inserted between the upper scissor arm (51) or the lower scissor arm (41).

8. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 1, characterized in that: The positioning frame (21) is slidably connected to the moving trolley (2) along the traveling direction of the moving trolley (2), a distance adjustment component is provided between two adjacent positioning frames (21), and clamping plates (56) are elastically connected to the two ends of the accommodating groove (52), and the upper scissor arm (51) or the lower scissor arm (41) is placed between the two clamping plates (56).

9. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 8, characterized in that: The distance adjustment component comprises a scissor structure rotatably connected to a positioning frame (21), the scissor structure comprising a scissor arm 1 (9) and a scissor arm 2 (91), the scissor structures on two adjacent positioning frames (21) are hinged, a slide groove (24) perpendicular to the travel direction of the moving trolley (2) is provided, the scissor arm 1 (9) and the scissor arm 2 (91) on the positioning frame (21) at one end are slidably matched with the slide groove (24), and an electric push cylinder (25) is provided on the moving trolley (2), and the electric push cylinder (25) drives the positioning frame (21) to move along the travel direction of the moving trolley (2).

10. The assembly device of the crank arm lifting mechanism for the electric clothes drying rack according to claim 9, characterized in that: The guide rail (1) is provided with a positioning plate (10) between the feeding mechanism and the riveting mechanism (3). The positioning plates (10) are symmetrically arranged on both sides of the moving trolley (2) and are slidably connected to the guide rail (1). A driving member (3) is provided on the guide rail (1) for driving the two positioning plates (10) to move toward or away from each other. An arc-shaped guide surface is provided at one end of the positioning plate (10) facing the feeding mechanism. When both ends of the upper scissor fork arm (51) or the lower scissor fork arm (41) on the moving trolley (2) contact the arc-shaped guide surface, the arc-shaped guide surface squeezes the upper scissor fork arm (51) or the lower scissor fork arm (41) to be centrally arranged on the positioning frame (21).

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