An automatic assembly device for plastic ball valve O-ring

Abstract

The invention relates to the technical field of O-ring assembly for plastic ball valves, and discloses an automatic O-ring assembly device for plastic ball valves, comprising a casing, a turntable movably installed in the middle of the casing, an O-ring feeding mechanism fixedly installed on the upper side of the casing and on the outer side of the turntable, an air supply mechanism fixedly installed on the lower side of one end of the O-ring feeding mechanism, and an assembling mechanism arranged on the outer side of the air supply mechanism; the assembling mechanism comprises a cylinder pushing component, a material guiding component, a second pushing component, a ring component, an air path component, and a fixed air bag, and a cylinder pushing component fixedly installed on the upper side of the casing; the invention realizes the purpose of automatic assembly by air bag telescopic docking workpieces and air bag alternately expanding pushing O-rings, and can synchronously assemble the plug and valve stem of the plastic ball valve in a set of equipment, saving equipment cost, and can perform uninterrupted assembly at the same time, thereby improving the working efficiency of the automatic assembly device.

Description

Technical Field

[0001] The invention relates to the technical field of plastic ball valve O-ring assembly, in particular to an automatic assembly device for a plastic ball valve O-ring. Background Art

[0002] A plastic ball valve is generally composed of a handle, two plugs, two union nuts, a valve body, a ball valve and a valve stem. The plug and the valve stem need to be equipped with O-rings, but the sizes of the O-rings required for the plug and the valve stem are inconsistent. The O-ring required for the valve stem is smaller, and the O-ring required for the plug is larger. Therefore, when automatically assembling the O-rings, two independent assembly devices are generally required for assembly.

[0003] At present, the automatic assembly devices for plugs and valve stem O-rings in most plastic ball valves on the market are mainly divided into two forms. One is to use two automatic sleeve mechanisms and automatic clamps to perform alternating feeding and assembly. The other is to use automatic clamps to dock the feeding mechanism with the plug and valve stem for assembly. However, the above two methods require intermittent transmission of the O-ring, and there is hard contact with the O-ring, plug and valve stem, which is easy to cause damage to the O-ring, plug and valve stem. At the same time, the assembly efficiency is reduced, and the plug and valve stem need to be assembled by two sets of equipment respectively, and the equipment cost is relatively high. Summary of the invention

[0004] The object of the present invention is to provide an automatic assembly device for an O-ring of a plastic ball valve to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic assembly device for an O-ring of a plastic ball valve, comprising a housing, a turntable movably mounted in the middle of the housing, an O-ring feeding mechanism fixedly mounted on the upper side of the housing and on the outer side of the turntable, an air supply mechanism fixedly mounted on the lower side of one end of the O-ring feeding mechanism, and an assembly mechanism disposed on the outer side of the air supply mechanism; The assembly mechanism includes a cylinder pushing component, a material guide component, a second material pusher component, a ring component, an air circuit component, and a fixed air bag. The upper side of the housing is fixedly installed with a cylinder pushing component, and two groups of material guide components are fixedly installed on the side of the cylinder pushing component close to the O-ring feeding mechanism. The lower outer side of the material guide component is fixedly connected with the second material pusher component, the lower end of the material guide component is connected with the air circuit component, the outer side of the air circuit component is provided with a ring component, and the lower end of the air circuit component is fixedly connected with a fixed air bag. The ferrule assembly is used to carry out airbag telescopic docking of workpieces, and the airbag alternately expands and pushes the O-ring to carry out automatic assembly.

[0006] Further, a ball valve plug feeding mechanism is arranged on the outside of the casing, a ball valve stem feeding mechanism is arranged on the outside of the casing and on the side opposite to the ball valve plug feeding mechanism, a finished product feeding mechanism is fixedly installed on the upper side of the casing and on the side opposite to the O-ring feeding mechanism, a cylinder clamping mechanism 1 is fixedly connected between the ball valve plug feeding mechanism and the finished product feeding mechanism on the upper side of the casing, and a cylinder clamping mechanism 2 is fixedly installed on the upper side of the casing and between the finished product feeding mechanism and the ball valve stem feeding mechanism; The O-ring feeding mechanism includes a vibration plate, a feeding track, and a pushing assembly. The upper side of the casing is fixedly connected to the vibration plate through a mounting platform, one side of the vibration plate is fixedly connected to the feeding track, and a pushing assembly is fixedly installed on the feeding track. The pushing assembly is used to push the O-ring forward continuously.

[0007] Start the ball valve plug feeding mechanism, ball valve stem feeding mechanism and O-ring feeding mechanism. The ball valve plug feeding mechanism and ball valve stem feeding mechanism respectively continuously transport the ball valve stem and ball valve plug to be assembled to the turntable, and the O-ring feeding mechanism vibrates and transports O-rings of two sizes; The turntable rotates intermittently, and the cylinder clamping mechanism 1 and the cylinder clamping mechanism 2 respectively clamp the corresponding ball valve stem and the ball valve plug on the ball valve plug feeding mechanism and the ball valve stem feeding mechanism through the clamping claws thereon, and after the ball valve stem and the ball valve plug are vertically corrected by rotation, the ball valve stem and the ball valve plug are respectively inserted into the corresponding sockets of the fixture on the turntable, wherein the ball valve plug is on the outside and the ball valve stem is on the inside; Furthermore, the material guiding assembly includes a fixed frame, a vibrator, a fixed tube 1, a material guiding cylinder, and a fixed tube 2; one side of the cylinder pushing assembly is fixedly connected to the fixed frame, the upper side of the fixed frame is fixedly connected to the vibrator, the inner side of the fixed frame is fixedly connected to the material guiding cylinder, a fixed tube 1 is provided in the middle part of the inner side of the material guiding cylinder, a fixed tube 2 is provided on the upper side of the fixed tube 1, and the fixed tube 1 and the fixed tube 2 are connected via a hose.

[0008] Furthermore, the second pusher assembly includes a cylinder barrel, a piston rod, an annular block, a guide plate, a pusher rod, and a spring. The lower outer side of the guide barrel is fixedly connected to the cylinder barrel, the inner side of the cylinder barrel is slidably connected to the piston rod, the lower side of the piston rod is fixedly connected to an annular block, the lower outer side of the guide barrel is fixedly connected to an evenly distributed guide plate, the lower side of the annular block is slidably connected to an evenly distributed pusher rod, the pusher rod corresponds to the guide plate, and the outer side of the pusher rod is sleeved with a spring.

[0009] When the O-ring enters the inner side of the guide tube and moves to the bottom of the conical shell, the external system controls the start-up cylinder to drive the piston rod to extend and retract. While the piston rod extends, it drives the annular block to move downward synchronously, and drives the push rod synchronously. While the push rod moves downward, it is guided by the guide plate to push the push rod inward, contact the upper edge of the O-ring at the bottom, and push it downward at the same time, so that the O-ring is sleeved on the outside of the ring airbag. Furthermore, the ring assembly includes a conical shell, a ring airbag 1, a ring airbag 2, a connecting block, and a telescopic airbag. The outer side of the lower end of the fixed tube 1 is fixedly connected to the conical shell, the lower side of the conical shell is provided with evenly distributed telescopic airbags, the inner side of the telescopic airbag is fixedly connected to the connecting block, the adjacent telescopic airbags are fixedly connected to the ring airbag 2, the inner side of the upper telescopic airbag is fixedly connected to the conical shell, and the ring airbag 1 is fixedly connected between the upper telescopic airbag and the conical shell.

[0010] Furthermore, the air path assembly includes a telescopic air pipe, a jet block 1, a jet pipe 2, and a jet pipe 3. The lower end of the fixed pipe 1 is connected to the telescopic air pipe, and the upper outer side of the telescopic air pipe is connected to the jet block 1. The jet block 1 is provided with an axially evenly distributed long nozzle, and the long nozzle penetrates the side wall of the conical shell and corresponds to the collar airbag 1. The outer side of the telescopic air pipe is also connected to evenly distributed jet pipe 2 and jet pipe 3. The jet pipes 2 and 3 are cross-distributed, the jet pipe 2 corresponds to the telescopic airbag, and the jet pipe 3 corresponds to the collar airbag 2.

[0011] Furthermore, the second jet pipe is connected to evenly distributed vertical short jet pipes, and adjacent vertical short jet pipes are arranged in opposite directions.

[0012] Furthermore, the three jet pipes are connected to evenly distributed transverse short nozzles, and the long nozzles, the vertical short nozzles, and the nozzles of the vertical short nozzles are all provided with solenoid valves.

[0013] Furthermore, a fixed airbag is fixedly connected to the inner side of the telescopic airbag on the lower side, the center of the fixed airbag is in the shape of a through hole, the ball valve plug is transmitted on the ball valve plug feeding mechanism, the ball valve stem is transmitted on the ball valve stem feeding mechanism, and the turntable is provided with evenly distributed clamps, and the clamps are provided with sockets corresponding to the ball valve stem and the ball valve plug.

[0014] The electromagnetic valve on the long nozzle of the jet block 1 is opened to inflate the ring airbag 1. During the continuous expansion of the ring airbag 1, the O-ring on it is pushed downward to transport the middle of the lower ring airbag 2. At this time, the external system intermittently controls the electromagnetic valves on the vertical short nozzles and the horizontal short nozzles on the jet pipe 3 and the jet pipe 2 to open, so that when the ring airbag 2 is inflated, the O-ring is pushed downward to reach the middle of the next ring airbag 2, and then the ring airbag 2 is inflated. This pushes the O-ring to gradually move downward. When it reaches the middle of the second lowest ring airbag, at the same time, the telescopic airbags are inflated at various locations, so that the telescopic airbags are extended, and the fixed airbag is docked with the ball valve stem or the ball valve plug to be assembled. The fixed airbag fixes the ball valve stem or the ball valve plug, so that after the telescopic airbag moves to the O-ring assembly position, the second lowest ring airbag is ventilated, and then the O-ring is pushed downward, so that the sealing ring and the ball valve stem or the ball valve plug are assembled. Furthermore, the air supply mechanism includes a telescopic cylinder, an air supply pipe, a quick-connect male head, a quick-connect female head, and a conical cover. Two conical covers are fixedly connected to the outer side of the fixed tube 2, and two quick-connect female heads are connected to the outer side of the fixed tube 2 and on the inner side of the conical cover. A quick-connect male head is arranged on the outer side of the quick-connect female head, and a through hole corresponding to the quick-connect male head is opened on the conical cover. One end of the quick-connect male head is connected to the air supply pipe, and a fixing ring is fixedly installed on the outer side of the air supply pipe. Two groups of telescopic cylinders are fixedly connected to the lower side of the feeding track through a fixing plate, and the telescopic end of the telescopic cylinder is fixedly connected to the fixing ring. Two O-ring holes are opened on the feeding track, and the O-ring hole near the edge of the feeding track is directly larger than the O-ring hole near the middle of the feeding track, and the O-ring hole corresponds to the fixed tube 2.

[0015] The turntable rotates intermittently to drive the ball valve stem and the ball valve plug thereon to rotate synchronously. When the ball valve stem and the ball valve plug move to the assembly mechanism, the cylinder push component drives the two sets of guide components to move to the top of the ball valve stem and the ball valve plug respectively. At this time, the vibration plate continuously pushes through the feeding track and the push component 1, and the two O-rings of different sizes are constantly moving forward at a uniform speed. Since there are two O-ring holes on the feeding track, the O-ring hole near the edge of the feeding track is directly larger than the O-ring hole near the middle of the feeding track, so that the smaller O-ring falls from the O-ring hole near the middle of the feeding track to the corresponding fixed tube 2, and the larger O-ring falls from the O-ring hole near the edge of the feeding track to the corresponding fixed tube 2. The smaller O-ring corresponds to the ball valve plug, and the larger O-ring corresponds to the ball valve stem; Start the vibrator, which drives the guide barrel to vibrate at a low frequency, and then vibrates the fixed tube 2 and the fixed tube 1 synchronously. The O-ring dropped on the fixed tube 2 is continuously transported downward under the action of the vibration. The external system controls and starts two sets of telescopic cylinders to perform intermittent telescoping, and then mobilizes the air supply pipes and quick-connect male connectors at two locations to perform intermittent motion. The quick-connect male connectors at two locations respectively connect and separate with the corresponding quick-connect female connectors in an alternating manner, and the air supply pipe is connected to the external air supply equipment.

[0016] Compared with the prior art, the present invention provides an automatic assembly device for an O-ring of a plastic ball valve, which has the following beneficial effects: 1. The automatic assembly device for plastic ball valve O-rings realizes the purpose of automatic assembly by the airbag telescopic docking workpiece and the airbag alternately expanding to push the O-ring through the coordination between the O-ring feeding mechanism, the assembly mechanism, the ball valve plug feeding mechanism, the ball valve stem feeding mechanism and the air supply mechanism. The plug and the valve stem of the plastic ball valve can be synchronously assembled in a set of equipment, which saves equipment costs and can be assembled uninterruptedly, thereby improving the working efficiency of the automatic assembly device. The existing two methods of alternate feeding and assembly using two automatic sleeve mechanisms in coordination with the automatic clamping jaws and the two methods of assembly using the automatic clamping jaws to dock the feeding mechanism with the plug and the valve stem back and forth are changed, thereby improving the convenience of use.

[0017] 2. The automatic assembly device for plastic ball valve O-rings uses a material guide component, a material pusher component, a ring component, an air path component, and a fixed airbag to adaptively fix the fixed airbag to the ball valve stem and the ball valve plug, so that the stability of the workpiece is guaranteed during the O-ring assembly process. At the same time, the airbag soft contact fixation and airbag sleeve assembly methods are adopted to avoid hard contact with the O-ring and the workpiece, causing damage to them, thereby reducing the scrap rate. At the same time, the airbag is adapted to a certain range of workpieces with different specifications and O-rings for assembly, and has a wide range of uses.

[0018] 3. The automatic assembly device for the O-ring of the plastic ball valve can intermittently transfer the O-ring downward through the staggered movement of the fixed tube 1 and the fixed tube 2, and the staggered docking and separation of the quick-connect male head and the quick-connect female head, thereby avoiding the occurrence of material blockage and ensuring the stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 The enlarged schematic diagram of point A in the middle; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention from another angle; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle; Figure 5 It is a three-dimensional structural schematic diagram of the O-ring feeding mechanism of the present invention; Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the assembly mechanism of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the material guiding assembly of the present invention; Figure 8 It is a schematic diagram of the cutaway three-dimensional structure of the material guide assembly of the present invention; Fig. 9 For the present invention Figure 8 The enlarged schematic diagram of the center C; Fig.10 It is a schematic diagram of the combined three-dimensional structure of the pusher assembly 2 and the ferrule assembly of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the pusher assembly 2 of the present invention; Fig.12 It is a three-dimensional structural schematic diagram of the ferrule assembly of the present invention; Fig.13 It is a schematic diagram of the cutaway combined three-dimensional structure of the ferrule assembly and the gas path assembly of the present invention; Fig.14 It is a schematic diagram of the three-dimensional structure of the ring airbag after expansion of the present invention; Fig.15 It is a schematic diagram of the three-dimensional structure of the second ring airbag after expansion of the present invention.

[0020] In the figure: 1, housing; 2, O-ring feeding mechanism; 21, vibration plate; 22, feeding track; 23, pusher assembly 1; 3, assembly mechanism; 31, cylinder pusher assembly; 32, guide assembly; 321, fixed frame; 322, vibrator; 323, fixed tube 1; 324, guide tube; 325, fixed tube 2; 33, pusher assembly 2; 331, cylinder tube; 332, piston rod; 333, annular block; 334, guide plate; 335, pusher rod; 336, spring; 34, ferrule assembly; 341, conical shell; 342, ferrule airbag 1; 343 , ferrule air bag two; 344, connecting block; 345, telescopic air bag; 35, air path assembly; 351, telescopic air pipe; 352, jet block one; 353, jet pipe two; 354, jet pipe three; 36, fixed air bag; 4, ball valve plug feeding mechanism; 5, ball valve stem feeding mechanism; 6, finished product feeding mechanism; 7, cylinder clamping mechanism one; 8, cylinder clamping mechanism two; 9, air supply mechanism; 91, telescopic cylinder; 92, air supply pipe; 93, quick-connect male connector; 94, quick-connect female connector; 95, conical cover; 10, ball valve stem; 11, ball valve plug; 12, turntable. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example See also Figure 1-Figure 15 , an automatic assembly device for an O-ring of a plastic ball valve, comprising a housing 1, a turntable 12 is movably mounted in the middle of the housing 1, an O-ring feeding mechanism 2 is fixedly mounted on the upper side of the housing 1 and on the outer side of the turntable 12, an air supply mechanism 9 is fixedly mounted on the lower side of one end of the O-ring feeding mechanism 2, and an assembly mechanism 3 is arranged on the outer side of the air supply mechanism 9; The assembly mechanism 3 includes a cylinder push assembly 31, a material guide assembly 32, a material push assembly 2 33, a collar assembly 34, an air circuit assembly 35, and a fixed air bag 36. The cylinder push assembly 31 is fixedly installed on the upper side of the housing 1. Two sets of material guide assemblies 32 are fixedly installed on the side of the cylinder push assembly 31 close to the O-ring feeding mechanism 2. The lower outer side of the material guide assembly 32 is fixedly connected with the material push assembly 2 33. The lower end of the material guide assembly 32 is connected with the air circuit assembly 35. The outer side of the air circuit assembly 35 is provided with a collar assembly 34. The lower inner side of the air circuit assembly 35 is fixedly connected with the fixed air bag 36. The ring assembly 34 is used to perform airbag telescopic docking of workpieces, and the airbag alternately expands to push the O-ring for automatic assembly.

[0023] Further, a ball valve plug feeding mechanism 4 is provided on the outside of the casing 1, a ball valve stem feeding mechanism 5 is provided on the outside of the casing 1 and on the opposite side of the ball valve plug feeding mechanism 4, a finished product feeding mechanism 6 is fixedly installed on the upper side of the casing 1 and on the opposite side of the O-ring feeding mechanism 2, a cylinder clamping mechanism 1 7 is fixedly connected between the ball valve plug feeding mechanism 4 and the finished product feeding mechanism 6 on the upper side of the casing 1, and a cylinder clamping mechanism 2 8 is fixedly installed between the finished product feeding mechanism 6 and the ball valve stem feeding mechanism 5 on the upper side of the casing 1; The O-ring feeding mechanism 2 includes a vibration plate 21, a feeding track 22, and a pushing assembly 23. The upper side of the casing 1 is fixedly connected to the vibration plate 21 through a mounting platform, one side of the vibration plate 21 is fixedly connected to the feeding track 22, and a pushing assembly 23 is fixedly installed on the feeding track 22. The pushing assembly 23 is used to push the O-ring forward continuously.

[0024] Start the ball valve plug feeding mechanism 4, the ball valve stem feeding mechanism 5, and the O-ring feeding mechanism 2. The ball valve plug feeding mechanism 4 and the ball valve stem feeding mechanism 5 respectively continuously transport the ball valve stem 10 and the ball valve plug 11 to be assembled to the turntable 12, and the O-ring feeding mechanism 2 vibrates and transports the O-rings of two sizes; The turntable 12 rotates intermittently, and the cylinder clamping mechanism 1 7 and the cylinder clamping mechanism 2 8 respectively clamp the corresponding ball valve stem 10 and the ball valve plug 11 on the ball valve plug feeding mechanism 4 and the ball valve stem feeding mechanism 5 through the clamping claws thereon, and after the ball valve stem 10 and the ball valve plug 11 are vertically corrected by rotation, the ball valve stem 10 and the ball valve plug 11 are respectively inserted into the corresponding jacks of the clamps on the turntable 12, wherein the ball valve plug 11 is on the outside and the ball valve stem 10 is on the inside; Furthermore, the material guiding assembly 32 includes a fixed frame 321, a vibrator 322, a fixed tube 1 323, a material guiding cylinder 324, and a fixed tube 2 325. The fixed frame 321 is fixedly connected to one side of the cylinder pushing assembly 31, the vibrator 322 is fixedly connected to the upper side of the fixed frame 321, the material guiding cylinder 324 is fixedly connected to the inner side of the fixed frame 321, a fixed tube 1 323 is arranged in the middle part of the inner side of the material guiding cylinder 324, a fixed tube 2 325 is arranged on the upper side of the fixed tube 1 323, and the fixed tube 1 323 and the fixed tube 2 325 are connected through a hose.

[0025] Furthermore, the pusher assembly 33 includes a cylinder barrel 331, a piston rod 332, an annular block 333, a guide plate 334, a pusher rod 335, and a spring 336. The lower outer side of the guide barrel 324 is fixedly connected to the cylinder barrel 331, the inner side of the cylinder barrel 331 is slidably connected to the piston rod 332, the lower side of the piston rod 332 is fixedly connected to the annular block 333, the lower outer side of the guide barrel 324 is fixedly connected to the evenly distributed guide plate 334, the lower side of the annular block 333 is slidably connected to the evenly distributed pusher rod 335, the pusher rod 335 corresponds to the guide plate 334, and the outer side of the pusher rod 335 is sleeved with a spring 336.

[0026] When the O-ring enters the inner side of the guide tube 324 and moves to the bottom of the conical shell 341, the external system controls the start-up cylinder 331 to drive the piston rod 332 to extend and retract. When the piston rod 332 extends, it drives the annular block 333 to move downward synchronously, and drives the push rod 335 synchronously. When the push rod 335 moves downward, it is guided by the guide plate 334 to push the push rod 335 inward, contact the upper edge of the O-ring at the bottom, and push it downward, so that the O-ring is sleeved on the outer side of the ring airbag 1 342. Furthermore, the ring assembly 34 includes a conical shell 341, a ring airbag 1 342, a ring airbag 2 343, a connecting block 344, and a telescopic airbag 345. The outer side of the lower end of the fixed tube 1 323 is fixedly connected to the conical shell 341, and the lower side of the conical shell 341 is provided with evenly distributed telescopic airbags 345. The inner side of the telescopic airbag 345 is fixedly connected to the connecting block 344, and the adjacent telescopic airbags 345 are fixedly connected to the ring airbag 2 343. The inner side of the upper telescopic airbag 345 is fixedly connected to the conical shell 341, and the ring airbag 1 342 is fixedly connected between the upper telescopic airbag 345 and the conical shell 341.

[0027] Furthermore, the air path assembly 35 includes a telescopic air pipe 351, an air jet block 1 352, an air jet pipe 2 353, and an air jet pipe 3 354. The lower end of the fixed pipe 1 323 is connected to the telescopic air pipe 351, and the upper outer side of the telescopic air pipe 351 is connected to the air jet block 1 352. The air jet block 1 352 is provided with an axially uniformly distributed long nozzle, which passes through the side wall of the conical shell 341 and corresponds to the collar airbag 1 342. The outer side of the telescopic air pipe 351 is also connected to the uniformly distributed air jet pipe 2 353, the air jet pipe 3 354, the air jet pipe 2 353, and the air jet pipe 3 354 are cross-distributed. The air jet pipe 2 353 corresponds to the telescopic airbag 345, and the air jet pipe 3 354 corresponds to the collar airbag 2 343.

[0028] Furthermore, the second jet pipe 353 is connected to evenly distributed vertical short jet pipes, and adjacent vertical short jet pipes are arranged in opposite directions.

[0029] Furthermore, the jet pipe 354 is connected to evenly distributed short horizontal nozzles, and the long nozzle, the vertical short nozzle, and the nozzle outlets of the vertical short nozzles are all provided with solenoid valves.

[0030] Furthermore, a fixed airbag 36 is fixedly connected to the inner side of the lower telescopic airbag 345, and the center of the fixed airbag 36 is in the shape of a through hole. A ball valve plug 11 is transmitted on the ball valve plug feeding mechanism 4, and a ball valve stem 10 is transmitted on the ball valve stem feeding mechanism 5. The turntable 12 is provided with evenly distributed clamps, and the clamps are provided with sockets corresponding to the ball valve stem 10 and the ball valve plug 11.

[0031] The electromagnetic valve on the long nozzle of the jet block 1 352 is opened to inflate the ring airbag 1 342. During the continuous expansion of the ring airbag 1 342, the O-ring thereon is pushed downward to transport the middle part of the lower ring airbag 2 343. At this time, the external system intermittently controls the electromagnetic valves on the jet pipe 3 354, the vertical short nozzle and the horizontal short nozzle on the jet pipe 2 353 to open, so that when the ring airbag 2 343 is inflated, the O-ring is pushed downward to reach the middle part of the next ring airbag 2 343, and then the ring airbag 2 343 is inflated. The movable O-ring gradually moves downward, and when it reaches the middle of the second ring airbag 343 at the lowest side, at the same time, the telescopic airbags 345 at various locations are inflated, so that the telescopic airbags 345 are extended, and the fixed airbag 36 is docked with the ball valve stem 10 or the ball valve plug 11 to be assembled. The fixed airbag 36 fixes the ball valve stem 10 or the ball valve plug 11, so that after the telescopic airbag 345 moves to the position where the O-ring is assembled, the second ring airbag 343 at the lowest side is ventilated, and then the O-ring is pushed downward, so that the sealing ring and the ball valve stem 10 or the ball valve plug 11 are assembled; Furthermore, the air supply mechanism 9 includes a telescopic cylinder 91, an air supply pipe 92, a quick-connect male head 93, a quick-connect female head 94, and a conical cover 95. Two conical covers 95 are fixedly connected to the outer side of the fixed tube 325. Two quick-connect female heads 94 are connected to the outer side of the fixed tube 325 and on the inner side of the conical cover 95. A quick-connect male head 93 is arranged on the outer side of the quick-connect female head 94. A through hole corresponding to the quick-connect male head 93 is opened on the conical cover 95. One end of the quick-connect male head 93 is connected to the air supply pipe 92. A fixing ring is fixedly installed on the outer side of the air supply pipe 92. Two groups of telescopic cylinders 91 are fixedly connected to the lower side of the feeding track 22 through a fixing plate. The telescopic end of the telescopic cylinder 91 is fixedly connected to the fixing ring. Two O-ring holes are opened on the feeding track 22. The O-ring hole near the edge of the feeding track 22 is directly larger than the O-ring hole near the middle of the feeding track 22. The O-ring hole corresponds to the fixed tube 325.

[0032] The turntable 12 rotates intermittently to drive the ball valve stem 10 and the ball valve plug 11 thereon to rotate synchronously. When the ball valve stem 10 and the ball valve plug 11 move to the assembly mechanism 3, the cylinder push component 31 drives the two sets of material guide components 32 to move to the top of the ball valve stem 10 and the ball valve plug 11 respectively. At this time, the vibration plate 21 continuously pushes through the feeding track 22 and the pushing component 23, and the two O-rings of different sizes are constantly moving forward at a uniform speed. Two O-ring holes are provided on the track 22. The O-ring hole near the edge of the feeding track 22 is directly larger than the O-ring hole near the middle of the feeding track 22, so that the smaller O-ring falls from the O-ring hole near the middle of the feeding track 22 to the corresponding second fixing tube 325, and the larger O-ring falls from the O-ring hole near the edge of the feeding track 22 to the corresponding second fixing tube 325. The smaller O-ring corresponds to the ball valve plug 11, and the larger O-ring corresponds to the ball valve stem 10. Start the vibrator 322, which drives the guide tube 324 to vibrate at a low frequency, thereby synchronously vibrating the fixed tube 2 325 and the fixed tube 1 323. The O-ring dropped on the fixed tube 2 325 is continuously transported downward under the action of the vibration. The external system controls and starts the two sets of telescopic cylinders 91 to perform intermittent telescoping, thereby mobilizing the air supply pipes 92 and quick-connect male connectors 93 at two locations to perform intermittent motion. The quick-connect male connectors 93 at two locations respectively connect and separate with the corresponding quick-connect female connectors 94 in an alternating manner, and the air supply pipe 92 is connected to the external air supply equipment.

[0033] The specific usage and function of this embodiment are as follows: When in use, the ball valve plug feeding mechanism 4, the ball valve stem feeding mechanism 5 and the O-ring feeding mechanism 2 are controlled and started through the external control system. The ball valve plug feeding mechanism 4 and the ball valve stem feeding mechanism 5 respectively continuously transport the ball valve stem 10 and the ball valve plug 11 to be assembled to the turntable 12, and the O-ring feeding mechanism 2 vibrates and transports the O-rings of two sizes. The turntable 12 rotates intermittently, and the cylinder clamping mechanism 1 7 and the cylinder clamping mechanism 2 8 respectively clamp the corresponding ball valve stem 10 and the ball valve plug 11 on the ball valve plug feeding mechanism 4 and the ball valve stem feeding mechanism 5 through the clamping claws thereon, and after the ball valve stem 10 and the ball valve plug 11 are vertically corrected by rotation, the ball valve stem 10 and the ball valve plug 11 are respectively inserted into the corresponding jacks of the clamps on the turntable 12, wherein the ball valve plug 11 is on the outside and the ball valve stem 10 is on the inside; Then the turntable 12 rotates intermittently to drive the ball valve stem 10 and the ball valve plug 11 thereon to rotate synchronously. When the ball valve stem 10 and the ball valve plug 11 move to the assembly mechanism 3, the cylinder push component 31 drives the two sets of guide components 32 to move to the top of the ball valve stem 10 and the ball valve plug 11 respectively. At this time, the vibration plate 21 continuously pushes through the feeding track 22 and the pushing component 23. Two O-rings of different sizes are constantly moving forward at a uniform speed. Two O-ring holes are provided on the feeding track 22. The O-ring hole near the edge of the feeding track 22 is directly larger than the O-ring hole near the middle of the feeding track 22, so that the smaller O-ring falls from the O-ring hole near the middle of the feeding track 22 to the corresponding second fixing tube 325, and the larger O-ring falls from the O-ring hole near the edge of the feeding track 22 to the corresponding second fixing tube 325. The smaller O-ring corresponds to the ball valve plug 11, and the larger O-ring corresponds to the ball valve stem 10. The vibrator 322 is started, and the vibrator 322 drives the guide tube 324 to vibrate at a low frequency, thereby synchronously vibrating the fixed tube 2 325 and the fixed tube 1 323. The O-ring dropped on the fixed tube 2 325 is continuously transported downward under the action of the vibration. The external system controls and starts the two sets of telescopic cylinders 91 to perform intermittent telescopic movement, thereby mobilizing the air supply pipes 92 and the quick-connect male connectors 93 at two locations to perform intermittent movement. The quick-connect male connectors 93 at two locations respectively connect and separate with the corresponding quick-connect female connectors 94 in an alternating manner, and the air supply pipes 92 are connected to the external air supply equipment. By staggered docking and separation of the quick-connect male head 93 and the quick-connect female head 94, the O-ring can be intermittently transferred downward to avoid material blockage, and at the same time, compressed gas is provided to the inner side of the jet block 1 352. Since the fixed pipe 2 325 is connected to the fixed pipe 1 323 through a hose, and the fixed pipe 2 325 passes through the quick-connect male head 93 and the air supply pipe 92, the ring assembly 34 can move within a certain range, and has a wide range of applications. When the O-ring enters the inner side of the guide tube 324 and moves to the bottom of the conical shell 341, the external system controls the start-up cylinder 331 to drive the piston rod 332 to extend and retract. When the piston rod 332 extends, it drives the annular block 333 to move downward synchronously, and drives the push rod 335 synchronously. When the push rod 335 moves downward, it is guided by the guide plate 334 to push the push rod 335 inward, contact the upper edge of the O-ring at the bottom, and push it downward, so that the O-ring is sleeved on the outer side of the ring airbag 1 342. The external system opens the electromagnetic valve on the long nozzle of the jet block 1 352, so that the ring airbag 1 342 is inflated. During the continuous expansion of the ring airbag 1 342, the O-ring thereon is pushed downward to transport the middle part of the lower ring airbag 2 343. At this time, the external system intermittently controls the electromagnetic valves on the jet pipe 3 354, the vertical short nozzle and the horizontal short nozzle on the jet pipe 2 353 to open, so that when the ring airbag 2 343 is inflated, the O-ring is pushed downward to reach the middle part of the next ring airbag 2 343, and then the ring airbag 2 343 is inflated. This pushes the O-ring to gradually move downward, and when it reaches the middle of the second ring airbag 343 at the lowest side, at the same time, due to the inflation of the telescopic airbags 345 at various locations, the telescopic airbags 345 are extended, and the fixed airbag 36 is docked with the ball valve stem 10 or the ball valve plug 11 to be assembled. The fixed airbag 36 fixes the ball valve stem 10 or the ball valve plug 11, so that after the telescopic airbag 345 moves to the position where the O-ring is assembled, the second ring airbag 343 at the lowest side is ventilated, and then the O-ring is pushed downward, so that the sealing ring and the ball valve stem 10 or the ball valve plug 11 are assembled; The two groups of assembly mechanisms 3 can simultaneously perform O-ring assembly on the ball valve stem 10 and the ball valve plug 11. There is no need for intermittent alternating material connection and assembly, and uninterrupted assembly is possible. After the O-ring assembly of the ball valve stem 10 and the ball valve plug 11 is completed, it will be driven to the finished product feeding mechanism 6, and the cylinder clamping mechanism 2 8 will transport the assembled ball valve stem 10 and the ball valve plug 11 to the finished product feeding mechanism 6 through the automatic clamping claws thereon, and the finished product feeding mechanism 6 is connected to the next process.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly device for an O-ring of a plastic ball valve, comprising a housing (1), a turntable (12) being movably mounted in the middle of the housing (1), characterized in that: An O-ring feeding mechanism (2) is fixedly mounted on the upper side of the housing (1) and on the outer side of the turntable (12); an air supply mechanism (9) is fixedly mounted on the lower side of one end of the O-ring feeding mechanism (2); and an assembly mechanism (3) is arranged on the outer side of the air supply mechanism (9); The assembly mechanism (3) comprises a cylinder pushing component (31), a material guiding component (32), a material pushing component II (33), a collar component (34), an air path component (35), and a fixed air bag (36); the cylinder pushing component (31) is fixedly mounted on the upper side of the housing (1); two groups of material guiding components (32) are fixedly mounted on a side of the cylinder pushing component (31) close to the O-ring feeding mechanism (2); the lower outer side of the material guiding component (32) is fixedly connected to the material pushing component II (33); the lower end of the material guiding component (32) is connected to the air path component (35); the outer side of the air path component (35) is provided with a collar component (34); and the lower inner side of the air path component (35) is fixedly connected to the fixed air bag (36); The ferrule assembly (34) is used to perform airbag telescopic docking of workpieces, and the airbag alternately expands and pushes the O-ring to perform automated assembly.

2. The automatic assembly device for plastic ball valve O-ring according to claim 1, characterized in that: A ball valve plug feeding mechanism (4) is arranged on the outside of the casing (1), a ball valve stem feeding mechanism (5) is arranged on the outside of the casing (1) and on the side opposite to the ball valve plug feeding mechanism (4), a finished product feeding mechanism (6) is fixedly installed on the upper side of the casing (1) and on the side opposite to the O-ring feeding mechanism (2), a cylinder clamping mechanism 1 (7) is fixedly connected on the upper side of the casing (1) and between the ball valve plug feeding mechanism (4) and the finished product feeding mechanism (6), and a cylinder clamping mechanism 2 (8) is fixedly installed on the upper side of the casing (1) and between the finished product feeding mechanism (6) and the ball valve stem feeding mechanism (5); The O-ring feeding mechanism (2) comprises a vibration plate (21), a feeding track (22), and a pusher assembly (23); the upper side of the housing (1) is fixedly connected to the vibration plate (21) via a mounting platform; one side of the vibration plate (21) is fixedly connected to the feeding track (22); a pusher assembly (23) is fixedly mounted on the feeding track (22); the pusher assembly (23) is used to push the O-ring forward continuously.

3. The automatic assembly device for plastic ball valve O-ring according to claim 2, characterized in that: The material guide assembly (32) comprises a fixed frame (321), a vibrator (322), a fixed tube 1 (323), a material guide cylinder (324), and a fixed tube 2 (325); one side of the cylinder pushing assembly (31) is fixedly connected to the fixed frame (321); the upper side of the fixed frame (321) is fixedly connected to the vibrator (322); the inner side of the fixed frame (321) is fixedly connected to the material guide cylinder (324); a fixed tube 1 (323) is provided at the middle part of the inner side of the material guide cylinder (324); a fixed tube 2 (325) is provided on the upper side of the fixed tube 1 (323); and the fixed tube 1 (323) and the fixed tube 2 (325) are connected via a hose.

4. The automatic assembly device for plastic ball valve O-ring according to claim 3, characterized in that: The pusher assembly 2 (33) comprises a cylinder barrel (331), a piston rod (332), an annular block (333), a guide plate (334), a pusher rod (335), and a spring (336). The cylinder barrel (331) is fixedly connected to the outer side of the lower part of the guide barrel (324). The piston rod (332) is slidably connected to the inner side of the cylinder barrel (331). The lower side of the piston rod (332) is fixedly connected to the annular block (333). The lower outer side of the guide barrel (324) is fixedly connected to an evenly distributed guide plate (334). The lower side of the annular block (333) is slidably connected to an evenly distributed pusher rod (335). The pusher rod (335) corresponds to the guide plate (334). The outer side of the pusher rod (335) is sleeved with a spring (336).

5. The automatic assembly device for plastic ball valve O-ring according to claim 3, characterized in that: The ferrule assembly (34) comprises a conical shell (341), a first ferrule airbag (342), a second ferrule airbag (343), a connecting block (344), and a telescopic airbag (345); the outer side of the lower end of the first fixed tube (323) is fixedly connected to the conical shell (341); the lower side of the conical shell (341) is provided with evenly distributed telescopic airbags (345); the inner side of the telescopic airbag (345) is fixedly connected to the connecting block (344); the second ferrule airbag (343) is fixedly connected between adjacent telescopic airbags (345); the inner side of the upper telescopic airbag (345) is fixedly connected to the conical shell (341); and the first ferrule airbag (342) is fixedly connected between the upper telescopic airbag (345) and the conical shell (341).

6. The automatic assembly device for plastic ball valve O-rings according to claim 5, characterized in that: The air path assembly (35) comprises a telescopic air pipe (351), an air jet block 1 (352), an air jet pipe 2 (353), and an air jet pipe 3 (354). The lower end of the fixed pipe 1 (323) is connected to the telescopic air pipe (351). The upper outer side of the telescopic air pipe (351) is connected to the air jet block 1 (352). The air jet block 1 (352) is provided with an axially evenly distributed long strip of nozzles. The long strip of nozzles penetrates the side wall of the conical shell (341) and corresponds to the collar air bag 1 (342). The outer side of the telescopic air pipe (351) is also connected to an evenly distributed second air jet pipe (353) and a third air jet pipe (354). The second air jet pipe (353) and the third air jet pipe (354) are cross-distributed. The second air jet pipe (353) corresponds to the telescopic air bag (345), and the third air jet pipe (354) corresponds to the collar air bag 2 (343).

7. The automatic assembly device for plastic ball valve O-ring according to claim 6, characterized in that: The second jet pipe (353) is connected to evenly distributed vertical short jet pipes, and adjacent vertical short jet pipes are arranged in opposite directions.

8. The automatic assembly device for plastic ball valve O-rings according to claim 7, characterized in that: The jet pipe three (354) is connected to a uniformly distributed transverse short jet pipe, and the long jet pipe, the vertical short jet pipe, and the jet outlets of the vertical short jet pipe are all provided with electromagnetic valves.

9. The automatic assembly device for plastic ball valve O-rings according to claim 5, characterized in that: The inner side of the telescopic airbag (345) at the lower side is fixedly connected to a fixed airbag (36), the center of the fixed airbag (36) is in the shape of a through hole, the ball valve plug feeding mechanism (4) is supplied with a ball valve plug (11), the ball valve stem feeding mechanism (5) is supplied with a ball valve stem (10), and the turntable (12) is provided with evenly distributed clamps, the clamps are provided with jacks corresponding to the ball valve stem (10) and the ball valve plug (11).

10. The automatic assembly device for plastic ball valve O-rings according to claim 3, characterized in that: The air supply mechanism (9) comprises a telescopic cylinder (91), an air supply pipe (92), a quick-connect male head (93), a quick-connect female head (94), and a conical cover (95); the outer side of the second fixed pipe (325) is fixedly connected to two conical covers (95); the outer side of the second fixed pipe (325) and the inner side of the conical cover (95) are connected to two quick-connect female heads (94); the outer side of the quick-connect female head (94) is provided with a quick-connect male head (93); the conical cover (95) is provided with a through hole corresponding to the quick-connect male head (93); the quick-connect female head (94 ... One end of the male connector (93) is connected to an air supply pipe (92), a fixing ring is fixedly installed on the outer side of the air supply pipe (92), two sets of telescopic cylinders (91) are fixedly connected to the lower side of the feeding track (22) through a fixing plate, and the telescopic ends of the telescopic cylinders (91) are fixedly connected to the fixing ring. Two O-ring holes are opened on the feeding track (22), and the O-ring hole near the edge of the feeding track (22) is directly larger than the O-ring hole near the middle of the feeding track (22), and the O-ring hole corresponds to the second fixing pipe (325).

Images