A plastic ball valve oiling and actuating lubricating machine

Abstract

A plastic ball valve oiling and actuating lubricating machine disclosed by the present invention comprises a frame, and further comprises the following components installed on the frame: a positioning device for loading and positioning a plurality of plastic ball valves arranged in a straight line at uniform intervals; an oiling device which is loaded with at least one oil storage tank and is located above the positioning device for synchronously dripping lubricating grease onto the ball cores of all the plastic ball valves on the positioning device; an actuating device located in front of the positioning device for synchronously coupling and actuating the rotation of the ball core shafts of all the plastic ball valves on the positioning device; a displacement device for actuating the forward and backward sliding of the actuating device to couple or disconnect it from the ball core shafts; A batch of plastic ball valves are synchronously positioned by the positioning device, synchronously lubricated by the oiling device, and the ball core shafts of the ball valves are synchronously coupled and rotated by the actuating device, realizing batch, automatic and standardized oiling and lubricating operations, ensuring the same lubrication effect and performance for each plastic ball valve; reducing the cost of the ball valve lubrication process and enhancing the market competitiveness.

Description

Technical Field

[0001] The present invention relates to a process processing device for plastic ball valves, in particular to an oiling and actuating lubricator for plastic ball valves. Background Art

[0002] The plastic ball valves of our company are manufactured using our company's patented injection mold (CN206011612U). First, the sealing ring and the ball core are pre-placed in the injection mold cavity of the valve housing. When the injection molding of the valve housing is completed, the valve core and the sealing ring are simultaneously positioned and installed in the injection-molded valve housing to obtain a semi-finished plastic ball valve. As long as a handle for rotating the ball core is added outside the ball valve, a finished plastic ball valve (CN204592520U) can be obtained. Before the finished plastic ball valve leaves the factory, it is necessary for workers to turn the ball core of the plastic ball valve to the closed position manually, then drip lubricating grease at both ends of the plastic ball valve, and then manually turn the handle back and forth to form a lubricating surface on the mating surfaces between the ball core, the valve housing, and the sealing ring. When the plastic ball valve is used to switch the water circuit after leaving the factory, turning the handle to drive the ball core to rotate is more flexible and smooth, without jamming phenomena. The problems existing in the above operation of manually lubricating the plastic ball valve before leaving the factory are as follows: ① The performance consistency of the plastic ball valve cannot be guaranteed: The amount of lubricating grease dripped manually is too much or too little, and the handle for manual operation and limit can only rotate the ball core forward or backward by 90 degrees, and the number of times of rotating the ball core is more or less, which directly affects the lubrication effect of the ball core of the plastic ball valve, resulting in poor performance consistency of a batch of finished plastic ball valves; ② The lubrication cost of non-automated, batch-produced, and standardized plastic ball valves is high: Manual operation is laborious and inefficient, and the amount of lubricating grease (consumables) dripped is uncontrollable, resulting in waste of lubricating grease, high labor costs and consumable costs, increasing the overall production cost of plastic ball valves, and leading to a decline in the market competitiveness of plastic ball valve products. Summary of the Invention

[0003] To solve the above problems, the present invention aims to provide an oiling and actuating lubricator for plastic ball valves, which can batch perform standardized and automated oiling and rotation for sufficient lubrication of plastic ball valves before the handles are installed, ensure the lubrication effect and performance consistency of a batch of plastic ball valves, and can also eliminate the labor cost of lubrication operation and the cost of waste of lubricating oil, and can greatly improve the market competitiveness of finished plastic ball valves.

[0004] To achieve the above object, the present invention provides an oiling and actuating lubricating machine for plastic ball valves, which comprises a frame, and is characterized by further comprising the following components mounted on the frame: a positioning device for loading and positioning a plurality of plastic ball valves arranged in a straight line at uniform intervals; an oiling device which is loaded with at least one oil storage tank and is located above the positioning device for synchronously dripping lubricating grease onto the ball cores of all the plastic ball valves on the positioning device; an actuating device located in front of the positioning device for synchronously coupling and actuating the rotation of the ball core shafts of all the plastic ball valves on the positioning device; and a displacement device for actuating the forward and backward sliding of the actuating device to couple or disengage it from the ball core shafts.

[0005] Both axial ends of the plastic ball valve of the present invention have straight pipe sections for connecting pipes, and a neck ring for exposing the ball core shaft is radially arranged in the middle of the plastic ball valve; the positioning device is in a straight bar shape, and a plurality of positioning holes for upright insertion of the straight pipe sections of the plastic ball valves are evenly spaced on it, and a V-shaped fork plate for supporting the neck ring is vertically arranged at the front edge of each positioning hole. The automatic manipulator can batch-align and place the plastic ball valves without handles into the positioning holes in a row. Under the guidance of the V-shaped fork plate of the neck ring, the whole row of plastic ball valves can be regularly loaded on the straight bar-shaped positioning device at the same height and in the same direction.

[0006] The oiling device of the present invention comprises a hanging bracket and a plurality of slide bars horizontally installed in parallel above the frame. A slide sleeve for slidingly connecting with the slide bars is arranged in the middle of the rear part of the hanging bracket, and a tray for supporting the positioning oil storage tank is arranged at the bottom of the hanging bracket. The hanging bracket moves horizontally on the slide bars through the slide sleeve, and the position of the oiling device can be adjusted.

[0007] The actuating device of the present invention comprises a base plate rail-connected to the frame, a servo motor installed on the base plate, and a multi-axis synchronous rotating device installed on the base plate and driven by the servo motor. A plurality of claw-type linkage shafts actuated to rotate by it are installed on the multi-axis synchronous rotating device facing the positioning device. The axial direction of the claw-type linkage shaft is used for coupling or disengaging from the ball core shaft. When the claw-type linkage shaft is coupled with the ball core shaft, the servo motor drives the multi-axis synchronous rotating device to rotate the claw-type linkage shaft thereon forward or backward, synchronously driving the rotation of the ball core shafts of the plastic ball valves, so that the mating parts between the ball core shafts receiving a fixed amount of lubricating grease and the sealing rings and the inner walls of the valve housings are fully lubricated. In order to realize the standardized and automatic high-efficiency lubrication operation of the plastic ball valves, ensure the consistent lubrication effect and performance of the batch of plastic ball valves. After the lubrication operation of the plastic ball valves is completed, the actuating device retreats, so that the claw-type linkage shaft disengages from the ball core shafts of the plastic ball valves, and the automatic manipulator takes away the lubricated plastic ball valves in batches to enter the automatic installation process of the handles.

[0008] The multi-axis synchronous rotation device described in the present invention includes a shaft seat fixed on a base plate, and a plurality of shaft cylinders are evenly spaced and rotatably connected to the shaft seat, and the shaft cylinder exposed from the rear side of the shaft seat is used to attach the claw-type linkage shaft; a pulley for driving the coaxial rotation of each shaft cylinder is provided at the front side of the shaft seat corresponding to the position of each shaft cylinder, and a pulley driven by the servo motor is also provided at the corresponding position of the servo motor and the front side of the shaft seat, and the pulley on the servo motor and the pulley on the shaft seat are connected by multiple synchronous belts. By cross-linking the aforementioned pulleys with multiple synchronous belts, the servo motor can drive all the shaft cylinders on the multi-axis synchronous rotation device to rotate synchronously, and then all the claw-type linkage shafts attached to the shaft cylinders can also rotate synchronously. The claw-type linkage shafts that rotate synchronously in batches can actuate the ball core shafts of a batch of plastic ball valves to rotate synchronously, so as to efficiently realize the lubrication operation of the oiled plastic ball valves.

[0009] The displacement device described in the present invention is a rodless cylinder or an electric cylinder, and the displacement device is connected to drive the substrate to slide back and forth; the present invention preferably uses a rodless cylinder as the displacement device, which actuates the substrate to slide back and forth so that the actuating device as a whole can move back and forth, thereby realizing the clutch action of the ball core shaft of the plastic ball valve on the multi-axis synchronous rotation device and the positioning device.

[0010] The frame of the present invention has a table and two columns located on the left and right sides of the back of the table; the positioning device, the actuating device and the displacement device are installed on the table, and the oiling device is installed on the two columns. With such a design, the lubricating grease in the oil storage tank loaded by the oiling device is controlled to drip quantitatively and batchwise into the cavities of all plastic ball valves positioned and placed on the positioning device, and the displacement device actuates the actuating device to linearly displace a certain amplitude toward the positioning device, so that the actuating device coupling actuates the ball core shafts of all plastic ball valves on the positioning device to rotate, so as to realize the batch operation of lubricating the plastic ball valves.

[0011] The two ends of the sliding rod of the oiling device of the present invention are fixed on the pillars; the whole oiling device is located on the table, so that the lubricating grease dripped from the oiling device in batches can fall into the cavity of the plastic ball valve placed on the positioning device, so that the ball core surface of the plastic ball valve is oiled.

[0012] The base plate of the actuating device of the present invention is mounted on the table through a straight guide rail assembly; the displacement device on the table drives the bottom surface of the connected base plate; the base plate is driven to move forward or backward by a certain amplitude by the displacement device, so that the coupling action of the ball core shafts of all plastic ball valves on the actuating device and the positioning device can be realized.

[0013] At the bottom of the pallet of the present invention, there are several oil nozzles for synchronously dripping lubricating grease onto the ball cores of all plastic ball valves on the positioning device, and the oil nozzles are supplied with oil quantitatively by an oil storage tank; in the present invention, one oil nozzle is connected to one oil storage tank; of course, one oil storage tank can also be connected to multiple oil nozzles, and the purpose is to quantitatively and uniformly supply lubricating grease to a batch of oil nozzles to avoid excessive lubricating grease dripping onto the ball cores in the inner cavity of the plastic ball valve, resulting in unnecessary waste.

[0014] The beneficial effects of the present invention are as follows:

[0015] ① A batch of plastic ball valves are synchronously positioned by the positioning device, synchronously lubricated by the lubricating device, and the ball core shafts of the ball valves are synchronously coupled and rotated by the actuating device, realizing batch, automatic, and standardized lubrication operations to ensure that the lubrication effects and performances of each plastic ball valve are consistent;

[0016] ② It reduces the lubrication process cost of plastic ball valves and enhances the market competitiveness of plastic ball valve finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 。

[0018] Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 。

[0019] Figure 3 is a left view structural schematic diagram of the present invention.

[0020] Figure 4 is a schematic structural diagram for explaining the batch loading and positioning of plastic ball valves by the positioning device of the present invention.

[0021] Figure 5 is a left view of the structure where the plastic ball valve on the positioning device of the present invention is separated from the actuating device.

[0022] Figure 6 is a left view of the structure where the plastic ball valve on the positioning device of the present invention is coupled with the actuating device.

[0023] Figure 7 is a three-dimensional view of the structure where the plastic ball valve on the positioning device of the present invention is separated from the actuating device.

[0024] Figure 8 is a three-dimensional view of the structure where the plastic ball valve on the positioning device of the present invention is coupled with the actuating device.

[0025] In the figure, the attached drawing reference signs are:

[0026] 10. Frame; 11. Tabletop; 12. Column;

[0027] 20. Positioning device; 21. Positioning hole; 22. Fork plate;

[0028] 30. Oil application device; 31. Hanger; 311. Sliding sleeve; 312. Support plate; 32. Slide bar;

[0029] 40. Oil storage tank; 41. Oil drip nozzle;

[0030] 50. Actuating device; 51. Substrate; 52. Servo motor; 53. Claw-type linkage shaft; 54. Multi-axis synchronous rotation device; 541. Shaft seat; 542. Shaft cylinder; 543. Belt pulley; 544. Timing belt;

[0031] 60. Displacement device;

[0032] 70. Plastic ball valve; 71. Straight pipe section; 72. Neck ring; 73. Ball core shaft. Detailed implementation mode

[0033] The present invention will be further described below in conjunction with the drawings and embodiments.

[0034] As Figure 1 , Figure 2 , Figure 3 , Figures 5 to 8 shown, a plastic ball valve oiling actuating lubricating machine includes a frame 10, and further includes those installed on the frame 10: a positioning device 20 for loading a number of plastic ball valves 70 arranged in a straight line with uniform positioning intervals; an oil application device 30 which is loaded with at least one oil storage tank 40 and is located above the positioning device 20 for synchronously dripping lubricating grease onto the ball cores of all the plastic ball valves 70 on the positioning device 20; an actuating device 50 located in front of the positioning device 20 for synchronously coupling and actuating the rotation of the ball core shafts 73 of all the plastic ball valves 70 on the positioning device 20; a displacement device 60 for actuating the forward and backward sliding of the actuating device 50 to couple or disengage it from the ball core shaft 73.

[0035] The following details the specific assembly structure of the present invention (taking the lubrication of plastic ball valves in groups of four per batch as an example).

[0036] As Figure 1 , Figure 2 , Figure 3 , Figures 5 to 8 shown, the frame 10 of the present invention has a tabletop 11 and two columns 12 located on the left and right sides behind the tabletop 11. The positioning device 20, the actuating device 50 and the displacement device 60 are installed on the tabletop 11, and the oil application device 30 is installed on the two columns 12.

[0037] As Figures 4 to 8As shown, the plastic ball valve 70 of the present invention without a handle has straight pipe sections 71 for connecting pipes at both axial ends, and a neck ring 72 with a ball core shaft 73 exposed in the middle in the radial direction of the plastic ball valve 70.

[0038] Figures 1 to 8 As shown, the positioning device 20 of the present invention installed on the table 11 is in a straight strip shape, and four positioning holes 21 for upright insertion and removal of the straight pipe section 71 of the plastic ball valve 70 are uniformly spaced thereon. At the front edge of each positioning hole 21, a V-shaped fork plate 22 for supporting the neck ring 72 is vertically provided.

[0039] As Figure 1 、 Figure 2 、 Figure 3 、 Figures 5 to 8 As shown, the oiling device 30 of the present invention includes a hanging rack 31 and several slide rods 32 horizontally installed in parallel above the frame 10. Both ends of each slide rod 32 are fixedly connected to the columns 12 of the frame 10. A slide sleeve 311 for slidingly connecting with the slide rod 32 is provided in the middle of the rear part of the hanging rack 31. A support plate 312 for supporting and positioning four oil storage tanks 40 is provided at the bottom of the hanging rack 31. Four oil dripping nozzles 41 for synchronously dripping lubricating grease onto the ball cores of all the plastic ball valves 70 on the positioning device 20 are provided at the bottom of the support plate 312, and the four oil dripping nozzles 41 are supplied with oil quantitatively synchronously by the corresponding oil storage tanks 40.

[0040] As Figure 1 、 Figure 2 、 Figure 3 、 Figures 5 to 8 As shown, the actuating device 50 of the present invention includes a base plate 51 connected to the table 11 of the frame 10 through a straight guide rail assembly, a servo motor 52 installed on the base plate 51, and a multi-axis synchronous rotation device 54 installed on the base plate 51 and driven by the servo motor 52. Four claw-type linkage shafts 53 actuated to rotate by the multi-axis synchronous rotation device 54 are installed in the direction facing the positioning device 20. The axial direction of the claw-type linkage shafts 53 is used for coupling or disengaging with the ball core shaft 73 of the plastic ball valve 70. The multi-axis synchronous rotation device 54 of the present invention includes a shaft seat 541 fixed to the base plate 51. Four shaft cylinders 542 are rotatably connected to the shaft seat 541 at equal intervals. The shaft cylinders 542 exposed from the rear side of the shaft seat 541 are used for connecting the claw-type linkage shafts 53; belt pulleys 543 for driving their coaxial rotation are provided at the front side of the shaft seat 541 corresponding to the positions of the shaft cylinders 542. A belt pulley 543 driven by the servo motor 52 is also provided at the corresponding position on the front side of the servo motor 52 and the shaft seat 541. The belt pulleys 543 on the servo motor 52 and the shaft seat 541 are connected by a plurality of synchronous belts 544.

[0041] As Figure 1 、 Figure 2 、 Figure 3 、Figures 5 to 8 As shown in Figures 5 to 8 , the displacement device 60 on the table 11 of the frame 10 of the present invention uses a rodless cylinder. The displacement device 60 is connected to drive the substrate 51 to slide back and forth, so that the entire actuating device 50 can move back and forth. The front and rear displacement of the multi-axis synchronous rotation device 54 can make the four jaw-type linkage shafts 53 thereon align and couple or disengage from the ball core shafts 73 of the four plastic ball valves 70 on the positioning device 20.

[0042] The following details the working principle and implementation actions of the present invention for lubricating the plastic ball valve 70.

[0043] As Figures 1 to 3 shown, the present invention is in a standby state; as Figure 4 shown, an automated manipulator (not shown) can align a row of four plastic ball valves 70 without handles and place them into the four positioning holes 21. The neck rings of the plastic ball valves 70 are guided by the V-shaped fork plates 22. As Figure 5 and Figure 7 shown, the entire row of plastic ball valves 70 is regularly loaded on the straight bar-shaped positioning device 20 at the same height and in the same direction, and all the ball core shafts 73 face the actuating device 50 forward, and the pipe orifices of the straight pipe sections 71 at the upper ends of all the plastic ball valves 70 face upward; in this way, the synchronous positioning loading of a batch of plastic ball valve 70 semi-finished products is realized.

[0044] As Figure 5 and Figure 4 shown, the four oil storage tanks 40 on the oiling device 30 supply oil to the corresponding four oil nozzles 41 synchronously and quantitatively, and the lubricating grease quantitatively dripped from the four oil nozzles 41 is dripped onto the ball core surfaces in the corresponding four plastic ball valves 70 on the positioning device 20; in this way, the synchronous lubrication of a batch of plastic ball valve 70 semi-finished products is realized.

[0045] As Figures 5 to 8 shown, the displacement device 60 actuates the substrate 51 to slide backward by a certain amplitude, so that the entire actuating device 50 slides backward. The multi-axis synchronous rotation device 54 on the actuating device 50 moves backward, and the four jaw-type linkage shafts 53 mounted on the four shaft barrels 542 of the multi-axis synchronous rotation device 54 move backward. The four jaw-type linkage shafts 53 are aligned and coupled with the ball core shafts 73 of the four plastic ball valves 70 on the positioning device 20; then the servo motor 52 is started, and through the cooperation of the belt pulley 543 and the synchronous belt 544, the four shaft barrels 542 on the multi-axis synchronous rotation device 54 drive the jaw-type linkage shafts 53 to rotate synchronously, which can drive the ball core shafts 73 of the four plastic ball valves 70 to rotate synchronously. The ball cores in the ball valves 70 rotate, so that the lubricating grease is fully lubricated with the sealing rings and the inner walls of the valve shells; in this way, the lubrication of a batch of plastic ball valve 70 semi-finished products is realized, ensuring that the lubrication effects and performances of each batch of plastic ball valves 70 processed by the present invention are consistent.

[0046] As Figure 6and Figure 5 , Figure 8 and Figure 7 As shown in Figure 5 , Figure 8 and Figure 7 , the substrate 51 is then reversely actuated by the displacement device 60, so that the substrate 51 slides backward by an amplitude to reset, and the four jaw-type linkage shafts 53 on the multi-axis synchronous rotation device 54 are disengaged from the ball core shafts 73 of the four plastic ball valves 70. Thus, the lubrication automation and standardization operation of four semi-finished plastic ball valves 70 in each batch are completed.

[0047] The above embodiments are only for illustrating the present invention, rather than limiting the present invention. Those of ordinary skill in the art can also make various transformations or changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention, as defined by each claim.

Claims

1. An oiling and actuating lubricating machine for a plastic ball valve, comprising a frame (10), characterized in that: It also includes components installed on the frame (10): A positioning device (20) for loading a number of plastic ball valves (70) arranged in a straight line with evenly spaced positioning intervals; An oiling device (30) which is loaded with at least one oil storage tank (40) and is located above the positioning device (20), for synchronously dripping lubricating grease onto the ball cores of all the plastic ball valves (70) on the positioning device (20); An actuating device (50) located in front of the positioning device (20), which is used to synchronously couple and actuate the rotation of the ball core shafts (73) of all the plastic ball valves (70) on the positioning device (20); A displacement device (60) for actuating the actuating device (50) to slide forward and backward to couple or disengage it from the ball core shaft (73); The actuating device (50) includes a base plate (51) rail-connected to the frame (10), a servo motor (52) installed on the base plate (51), and a multi-axis synchronous rotating device (54) installed on the base plate (51) and driven by the servo motor (52). A number of claw-type linkage shafts (53) actuated to rotate by it are installed in the direction facing the positioning device (20). The axial direction of the claw-type linkage shafts (53) is used to couple or disengage from the ball core shaft (73); The frame (10) has a tabletop (11) and two columns (12) located on the left and right sides behind the tabletop (11); the positioning device (20), the actuating device (50) and the displacement device (60) are installed on the tabletop (11), and the oiling device (30) is installed on the two columns (12).

2. A plastic ball valve oiling, actuating and lubricating machine according to claim 1, characterized in that: The axial two ends of the plastic ball valve (70) have straight pipe sections (71) for connecting pipes, and a neck ring (72) for exposing the ball core shaft (73) is radially provided in the middle of the plastic ball valve (70); The positioning device (20) is in a straight strip shape, and a number of positioning holes (21) for upright insertion and removal of the straight pipe sections (71) of the plastic ball valves (70) are evenly spaced on it. At the front edge of each positioning hole (21), a V-shaped fork plate (22) for supporting the neck ring (72) is vertically provided.

3. The oiling actuating lubricator for a plastic ball valve according to claim 1, characterized in that: The oiling device (30) includes a hanging rack (31) and a number of sliding rods (32) installed horizontally in parallel above the frame (10). A sliding sleeve (311) for sliding connection with the sliding rods (32) is provided in the middle of the rear part of the hanging rack (31), and a support plate (312) for supporting the positioning oil storage tank (40) is provided at the bottom of the hanging rack (31).

4. A plastic ball valve oiling and actuating lubricating machine according to claim 1, characterized in that: The multi-axis synchronous rotation device (54) described above includes a shaft seat (541) fixed to the substrate (51). A plurality of shaft cylinders (542) are rotatably connected to the shaft seat (541) at uniform intervals. The shaft cylinders (542) exposed from the rear side of the shaft seat (541) are used to connect the claw-type linkage shaft (53). At the front side of the shaft seat (541), corresponding to the positions of the shaft cylinders (542), there are belt pulleys (543) for driving them to rotate coaxially. At the corresponding position on the front side of the servo motor (52) and the shaft seat (541), there is also a belt pulley (543) driven by it. The belt pulleys (543) on the servo motor (52) and the shaft seat (541) are connected by a plurality of synchronous belts (544).

5. The oiling actuating lubricator for a plastic ball valve according to claim 4, characterized in that: The displacement device (60) described above is a rodless cylinder or an electric cylinder, and the displacement device (60) is connected to drive the substrate (51) to slide back and forth.

6. The oiling actuating lubricator for a plastic ball valve according to claim 3, wherein: Both ends of the slide rod (32) of the oiling device (30) described above are fixedly connected to the column (12).

7. The oiling actuating lubricator for a plastic ball valve according to claim 4, wherein: The substrate (51) of the actuating device (50) described above is connected to the table surface (11) through a linear guide rail assembly; the displacement device (60) on the table surface (11) is drivingly connected to the bottom surface of the substrate (51).

8. A plastic ball valve oiling and actuating lubricating machine according to claim 3, characterized in that: At the bottom of the pallet (312), there are a number of oil nozzles (41) for synchronously dripping lubricating grease onto the ball cores of all the plastic ball valves (70) on the positioning device (20). The oil nozzles (41) are supplied with oil quantitatively by an oil storage tank (40).

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