Pneumatic tube flow rotary five-station through-type workstation

Abstract

The present invention discloses a pneumatic flow rotary five-station through-type workstation, wherein the stator component comprises upper and lower transmission pipes, and the lower and upper ends of the upper and lower transmission pipes are respectively provided with upper and lower sealing rings; the rotor component comprises a transmission receiving pipe arranged in the middle of the upper and lower transmission pipes, and the pipe comprises inner and outer pipes, and the upper and lower ends of the inner pipe are respectively provided with upper and lower pressure plates, and the outer pipe is installed on the left and right rotating shafts, and the upper and lower parts of the inner pipe are provided with air holes, and the upper air hole is provided with a small one-way valve, and the inner pipe above the lower air hole is provided with a bottle holder, and the bottle holder is provided with a transmission bottle channel, and the bottle holder is provided with a cover plate that can be flipped to open or close the transmission bottle channel; the rotor driving component comprises a pulley transmission pair and a linkage mechanism driven by a motor; in the vertical position of the transmission receiving pipe, the upper and lower connecting rods drive the upper and lower sealing rings to press the upper and lower pressure plates. The present invention can realize two-way direct-through, two-way transmission and two-way buffer reception with immediate arrival and stop.

Description

Technical Field

[0001] The invention relates to a pneumatic tube flow conveying system component structure, in particular to a pneumatic tube flow rotary five-station through-type workstation. Background Art

[0002] The pneumatic tube logistics transmission system uses compressed air as its power, is automatically controlled by electromechanical and microcomputer technology, and transmits items through network pipelines, achieving safe and efficient item transmission between any two sending and receiving stations, eliminating the pain of workers running around, saving a lot of time, and improving work efficiency.

[0003] The pass-through workstation is the most commonly used form of receiving and sending station in pneumatic logistics transmission systems. Currently, all pass-through workstations have a common problem. Due to the limited number of workstations, the function of the workstation is restricted. In the single-tube bidirectional pipeline transmission system, the optimal receiving method of stopping at the same time as the arrival cannot be achieved, and the transmission efficiency is low. In addition, due to insufficient buffering capacity when receiving items, the inertia force will cause a huge impact on the workstation when the items are transmitted. Summary of the invention

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a pneumatic flow rotary five-station through-type workstation which has a compact structure, is flexible and can alleviate impact.

[0005] The pneumatic tube flow rotary five-station through-type workstation that can solve the above technical problems includes a stator component, a rotor component and a rotor drive component. The difference is:

[0006] 1. The stator component comprises an upper transmission tube and a lower transmission tube, and the lower ends of the upper and lower transmission tubes are respectively provided with an upper sealing ring and a lower sealing ring which can slide axially.

[0007] 2. The rotor component includes a delivery receiving tube arranged between the upper and lower delivery tubes, and the delivery receiving tube includes a coaxial inner tube and an outer tube. The upper and lower ends of the inner tube are respectively installed with an upper pressure plate and a lower pressure plate. The outer tube is installed on the left and right rotating shafts and is arranged between the upper and lower pressure plates. The upper and lower parts of the inner tube are provided with circumferentially uniformly distributed air holes. Each air hole at the upper end is provided with a small one-way valve to prevent air from flowing from the outer tube to the inner tube. A bottle holder is provided in the inner tube above each air hole at the lower end. A transmission bottle channel is provided in the middle of the bottle holder. A cover plate that can block the transmission bottle channel is provided on the bottle holder. One side end of the cover plate is hinged on the bottle holder. The shaft pin of the hinged part extends out of the inner and outer tubes to connect with motor II.

[0008] 3. The rotor driving component includes a pulley transmission pair driven by a motor I and a linkage mechanism, a rotating shaft I is coaxially installed in the driven large pulley of the pulley transmission pair, and the driven large pulley is provided with radially opposite and elastically embedded in the corresponding recess I on the rotating shaft I. The linkage mechanism includes a cam coaxially installed on the driven large pulley, and an upper connecting rod and a lower connecting rod respectively installed on the upper and lower sealing rings are provided above and below the cam. The upper and lower sealing rings press the ends of the upper and lower connecting rods into the radially opposite recesses II on the cam under the action of the corresponding upper and lower spring elements.

[0009] 4. An upper and lower limit mechanism is provided to limit the conveying and receiving tube in the vertical position. In the vertical position, the rotating shaft stops rotating, the upper and lower steel balls are separated from the corresponding notch Ⅰ, and the driven large pulley drives the cam to rotate 90°, and then the ends of the upper and lower connecting rods are embedded in the corresponding notch Ⅱ. The upper and lower connecting rods drive the upper and lower sealing rings to be pressed on the upper and lower pressure plates to realize the docking between the upper transmission tube, the lower transmission tube and the conveying and receiving tube.

[0010] One structure of the inner tube includes an upper circular tube and a lower square tube, wherein the square tube is tangentially connected to the circular tube, and a height of a connection surface between the square tube and the circular tube and the cover plate is greater than a turning radius of the cover plate.

[0011] Another structure of the inner tube is a square tube.

[0012] Furthermore, the upper and lower sealing rings are respectively installed on corresponding sliding guide mechanisms.

[0013] Furthermore, the pressing surface between each sealing ring and the corresponding pressure plate is a plane or an arc surface.

[0014] Beneficial effects of the present invention:

[0015] The pneumatic tube flow rotary five-station through-type workstation of the present invention has the characteristic of flexible transformation of multiple stations, and can realize two-way direct-through, two-way sending and two-way buffer reception with immediate arrival and stop, thereby realizing more efficient and stable pneumatic transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an implementation mode of the present invention.

[0017] Figure 2 for Figure 1 Side view of an embodiment.

[0018] Figure 3(a) shows Figure 1 Schematic diagram of the profile of the cam in the embodiment.

[0019] Figure 3(b) shows Figure 1 A cross-sectional view of the rotating shaft I in an embodiment.

[0020] Figure 4(a) shows Figure 1 Schematic diagram of the delivery receiving tube in the vertical upper receiving position in the implementation manner.

[0021] Figure 4(b) shows Figure 1 Schematic diagram of the delivery receiving tube in the vertical lower receiving position in the implementation manner.

[0022] Figure 4(c) shows Figure 1 Schematic diagram of the conveying and receiving pipe in the vertical passing position in the implementation manner.

[0023] Figure 5(a) shows Figure 1 Schematic diagram of the conveying and receiving tube in the embodiment being in the oblique bottle delivery position.

[0024] Figure 5(b) shows Figure 1 Schematic diagram of the conveying and receiving pipe in the embodiment being in the oblique bottle unloading position.

[0025] Figure number identification: 1. Upper transmission tube; 2. Lower transmission tube; 3. Upper sealing ring; 4. Lower sealing ring; 5. Inner tube; 6. Outer tube; 7. Upper pressure plate; 8. Lower pressure plate; 9. Air vent; 10. Small one-way leather valve; 11. Bottle holder; 12. Sliding guide mechanism; 13. Cover plate; 14. Rotating shaft; 15. Motor II; 16. Driven large pulley; 17. Cam; 18. Upper connecting rod; 19. Lower connecting rod; 20. Screw; 21. Steel ball; 22. Notch II; 23. Notch I; 24. Conveying and receiving tube; 25. Motor I; 26. Spring element; 27. Frame; 28. Active small pulley; 29. ​​Compression spring; 30. Belt; 31. Limit block; 32. Transmission bottle channel. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0027] The pneumatic flow rotary five-station through-type workstation of the present invention comprises a stator component, a rotor component and a rotor driving component arranged on a frame 27, wherein the frame 27 is a vertical square frame structure, including left and right side panels and upper and lower panels, and the front and rear sides of the square frame are open structures, such as Figure 1 , Figure 2 shown.

[0028] The stator component includes an upper transmission tube 1 and a lower transmission tube 2. The tube body of the upper transmission tube 1 is vertically installed on the upper panel of the frame 27. The tube body of the lower transmission tube 2 coaxial with the upper transmission tube 1 is vertically installed on the lower panel of the frame 27. The lower end of the upper transmission tube 1 below the upper panel is sleeved with an upper sealing ring 3 (a combination structure of a sliding sleeve and a sealing ring) that can form a radial seal. The upper sealing ring 3 is installed below the upper panel through a front and rear sliding guide mechanism 12. Front and rear elastic elements 26 are pressed between the upper panel and the upper sealing ring 3; the upper end of the lower transmission tube 2 above the lower panel is sleeved with a lower sealing ring 4 (a combination structure of a sliding sleeve and a sealing ring) that can form a radial seal. The lower sealing ring 4 is also installed above the lower panel through a front and rear sliding guide mechanism 12. Front and rear elastic elements 26 are pressed between the lower panel and the lower sealing ring 4. Figure 1 , Figure 2 shown.

[0029] The rotor component includes a delivery receiving pipe 24 arranged between the upper and lower transmission pipes 1 and 2, and the delivery receiving pipe 24 includes a coaxial inner pipe 5 and an outer pipe 6, the inner pipe 5 includes an upper circular pipe and a tangentially connected square pipe at the lower part, and the outer pipe 6 is preferably a square pipe (it can also be a circular pipe), and an upper pressure plate 7 is installed at the upper end of the circular pipe of the inner pipe 5, and a lower pressure plate 8 is installed at the lower end of the square pipe of the inner pipe 5. The outer pipe 6 is arranged between the upper and lower pressure plates 7 and 8 and the outer pipe 6 is installed on the left and right rotating shafts 14, and the left rotating shaft 14 is installed on the left side plate of the frame 27. When the delivery receiving pipe 24 is rotated to a vertical position (upper and lower receiving stations or passing stations), it is coaxial with the upper and lower transmission pipes 1 and 2; the upper part of the circular pipe of the inner pipe 5 is provided with air holes 9 evenly distributed around the circumference, and each air hole 9 is provided with a small one-way skin valve 10, and the small one-way skin valve 10 can prevent air from the outer pipe 6 to the inner pipe 5 Flow, the lower part of the square tube of the inner tube 5 is also provided with air holes 9 evenly distributed around (not shown in the figure), and a bottle holder 11 is provided in the square tube of the inner tube 5 corresponding to the upper part of the lower air holes 9, and a transmission bottle channel 32 (also serving as an air duct) for the transmission bottle to pass through is provided in the center of the bottle holder 11, and a square cover plate 13 is provided on the end surface of the bottle holder 11, and one side end of the cover plate 13 is hinged on the bottle holder 11 through an axle pin, and one end of the axle pin extends out of the outer tube 6 and is connected to the output shaft of the motor Ⅰ25 installed at the corresponding position of the outer tube 6. When the motor Ⅰ25 rotates forward and reversely, the cover plate 13 is covered on the bottle holder 11 to prevent the air in the inner tube 5 from flowing outward through the transmission bottle channel 32, and the cover plate 13 is rotated 90° and flipped to a vertical position to open the transmission bottle channel 32, and the top of the cover plate 13 in the vertical position is lower than the intersection surface of the circular tube and the square tube of the inner tube 5. Figure 1 , Figure 2 shown.

[0030] The rotor driving component includes a motor II 15, a pulley transmission pair and a linkage mechanism. The pulley transmission pair includes a driven large pulley 16 and a driving small pulley 28. The right shaft end of the driven large pulley 16 is installed on the right side plate of the frame 27. The right shaft 14 is installed in the left end wheel body of the driven large pulley 16. The wheel body of the driven large pulley 16 is relatively provided with radial holes. Each radial hole is respectively provided with a steel ball 21, a compression spring 29 and a screw 20 from the inside to the outside. The spring force of the compression spring 29 is adjusted by adjusting the tightness of the compression spring 20. The spring force of the compression spring 29 presses the steel ball 21 into the corresponding notch Ⅰ23 on the right rotating shaft 14, so that the driven large pulley 16 and the right rotating shaft 14 are integrated and rotate synchronously; the motor Ⅱ 15 is installed on the right side plate of the frame 27 below the driven large pulley 16, and the driving small pulley 28 is installed on the output shaft of the motor 15. The driving small pulley 28 is connected to the driven large pulley 16 through a belt 30. Figure 1 , Figure 2 , as shown in Figure 3(b).

[0031] The linkage mechanism includes a cam 17 and upper and lower connecting rods 18, 19. The cam 17 is coaxially mounted on the right side shaft end of the driven large pulley 16 extending out of the right side plate of the frame 27. The upper and lower connecting rods 18, 19 are respectively vertically arranged at the upper and lower sides of the cam 17. The upper end of the upper connecting rod 18 is bent to the left and connected to the upper sealing ring 3 through the corresponding through-hole on the right side plate. The lower end of the lower connecting rod 19 is also bent to the left and connected to the lower sealing ring 4 through the corresponding through-hole on the right side plate. Under the action of the upper and lower elastic elements 26, the upper and lower sealing rings 3, 4 press the ends of the upper and lower connecting rods 18, 19 onto the profile of the cam 17. The ejector pins arranged at the ends of the upper and lower connecting rods 18, 19 can be snapped into the corresponding notches II 22 opened on the profile of the cam 17. The phase angles of the two opposite notches II 22 and the two opposite notches I 23 differ by 90°. Figure 1 , as shown in Figure 3(a).

[0032] The present invention has a five-station working mode:

[0033] 1. Upper receiving station, as shown in Figure 4(a).

[0034] The motor II 15 drives the delivery and receiving tube 24 to rotate clockwise in the front and rear directions. The upper pressure plate 7 is blocked by the upper limit block 31 (with a one-way passing structure) set on the upper sealing ring 3 and stays in the vertical position. The delivery and receiving tube 24 is blocked and stops rotating. The upper and lower steel balls 21 are pushed open by the shaft body of the right rotating shaft 14 and disengage from the notch I 23. The driven large pulley 16 drives the cam 17 to continue to rotate 90° clockwise (without driving the idling of the rotating shaft 14). When the end pins of the upper and lower connecting rods 18 and 19 are embedded in the relative notches II 22, the motor II 15 stops, and the upper and lower connecting rods 18 and 19 drive the upper and lower sealing rings 3 and 4 to move toward each other (the upper limit block 31 will not The upper sealing ring 3 is pressed against the upper pressure plate 7 and the lower sealing ring 4 is pressed against the lower pressure plate 8 to hinder the axial movement of the upper sealing ring 3, so that the upper transmission tube 1, the transmission receiving tube 24 and the lower transmission tube 2 are connected to each other, and the airflow of the upper transmission tube 1 is connected to the lower transmission tube 2 through the interlayer of the inner and outer tubes 5 and 6 of the transmission receiving tube 24. Under the action of airflow transmission, the transmission bottle enters the inner tube 5 of the transmission receiving tube 24 through the upper transmission tube 1. Since the cover plate 13 on the bottle holder 11 at the lower part of the inner tube is in the closed position, an air resistance is formed between the bottom of the transmission bottle and the cover plate 13, thereby slowing down the entry speed of the transmission bottle, so that the transmission bottle slowly falls onto the cover plate 13 of the bottle holder 11.

[0035] The pressing surface of each sealing ring and the corresponding pressure plate can be as follows Figure 1 The plane shown can also be Figure 2 The curved surface shown.

[0036] 2. Bottle unloading station, as shown in Figure 5(b).

[0037] The motor II 15 rotates in the reverse direction from the upper receiving station, driving the driven large pulley 16 and the cam 17 to rotate counterclockwise in the front and rear directions. The ejectors of the upper and lower connecting rods 18 and 19 break away from the recess II 22 and reach the contour surface of the cam 17. The spacing between the ejectors at the ends of the upper and lower connecting rods 18 and 19 increases, driving the upper and lower sealing rings 4 to move in the opposite direction, releasing the compression of the upper and lower sealing rings 3 and 4 with the upper and lower pressure plates 7 and 8. After the driven large pulley 16 rotates 90° counterclockwise, the upper and lower steel balls 21 are re-embedded in the recess I 23, driving the conveying and receiving tube 24 to rotate counterclockwise to the upper end of the inner tube 5 obliquely to the lower left, and the transmission bottle received in the inner tube 5 moves out of the conveying and receiving tube 24 to the outside of the frame 27 under the action of gravity.

[0038] 3. Bottle throwing station, as shown in Figure 5(a).

[0039] The motor II 15 self-unloading bottle station rotates in the reverse direction to drive the conveying and receiving tube 24 to rotate clockwise until the upper end of the inner tube 5 is obliquely upward to the left, and the transmission bottle is manually placed in the inner tube 5 of the conveying and receiving tube 24 from the upper end.

[0040] 4. Lower receiving station, as shown in Figure 4(b).

[0041] The motor II 15 continues to rotate at the unloading bottle position, driving the driven large pulley 16 and the cam 17 to rotate counterclockwise. The upper pressure plate 7 is blocked by the lower limit block 31 (with a one-way passing structure) provided on the lower sealing ring 4 and stays in a vertical position (the upper end of the inner tube 5 faces downward), the conveying and receiving tube 24 stops rotating, and the upper and lower steel balls 21 are pushed open by the shaft body of the right rotating shaft 14 and disengage from the notch I 23. The driven large pulley 16 continues to rotate counterclockwise by 90° (without driving the idling of the rotating shaft 14). When the ejector pins of the upper and lower connecting rods 18 and 19 are embedded in the opposite notch II 22 of the cam 17, the motor II 15 stops, and the upper and lower connecting rods 18 and 19 drive the upper and lower sealing rings 3 and 4 to move toward each other. The upper sealing ring 3 is pressed against the upper pressure plate 7 and the lower sealing ring 4 is pressed against the lower pressure plate 8 by the lower limit block 31 (the lower limit block 31 will not hinder the axial movement of the lower sealing ring 4), so that the upper transmission tube 1, the transmission receiving tube 24 and the lower transmission tube 2 are connected to each other, and the airflow of the lower transmission tube 2 is connected to the upper transmission tube 1 through the interlayer of the inner and outer tubes 5 and 6 of the transmission receiving tube 24. Under the action of airflow transmission, the transmission bottle enters the inner tube 5 of the transmission receiving tube 24 through the lower transmission tube 2. Since the cover plate 13 is still in the closed position, an air resistance is formed between the transmission bottle and the cover plate 13, thereby slowing down the entry speed of the transmission bottle, so that the transmission bottle slowly arrives at the cover plate 13 of the bottle holder 11.

[0042] 5. Pass through the work station, as shown in Figure 4(c).

[0043] The motor Ⅱ 15 reverses at the unloading bottle station and drives the conveying and receiving tube 24 to rotate clockwise. The upper pressure plate 7 is blocked by the limit block 31 set on the upper sealing ring 3 and stays in the vertical position. The conveying and receiving tube 24 stops rotating. The upper and lower steel balls 21 are pushed open by the shaft body of the right rotating shaft 14 and disengage from the notch Ⅰ 23. The driven large pulley 16 continues to rotate 90° clockwise (without driving the idling of the rotating shaft 14). When the end pins of the upper and lower connecting rods 18 and 19 are embedded in the notch Ⅱ 22, the motor Ⅱ 15 stops, and the upper and lower connecting rods 18 and 19 drive the upper and lower sealing rings 3 and 4. The upper sealing ring 3 is pressed against the upper pressure plate 7 and the lower sealing ring 4 is pressed against the lower pressure plate 8, so that the upper transmission tube 1, the transmission receiving tube 24 and the lower transmission tube 2 are connected. The motor I 25 is reversed to flip the cover plate 13 to a vertical position. The cover plate 13 opens the transmission bottle channel 32 of the bottle holder 11 and connects the upper transmission tube 1, the transmission receiving tube 24 and the lower transmission tube 2. The transmission bottle in the lower transmission tube 2 is uploaded to the upper transmission tube 1 through the transmission receiving tube 24 under the action of the airflow from bottom to top.

Claims

1. A pneumatic flow rotary five-station through-type workstation, comprising a stator component, a rotor component and a rotor drive component, characterized in that: The stator component comprises an upper transmission tube (1) and a lower transmission tube (2), and the lower ends and upper ends of the upper and lower transmission tubes (1, 2) are respectively provided with an upper sealing ring (3) and a lower sealing ring (4) which can slide axially; The rotor component comprises a delivery receiving tube (24) arranged between the upper and lower transmission tubes (1, 2), the delivery receiving tube comprises a coaxial inner tube (5) and an outer tube (6), the upper and lower ends of the inner tube (5) are respectively provided with an upper pressure plate (7) and a lower pressure plate (8), the outer tube (6) is installed on the left and right rotating shafts (14) and is arranged between the upper and lower pressure plates (7, 8), the upper and lower parts of the inner tube (5) are provided with circumferentially evenly distributed air holes (9), and each air hole (9) at the upper end is provided with a blocking A small one-way valve (10) is provided to stop the air from flowing from the outer tube (6) to the inner tube (5); a bottle holder (11) is provided in the inner tube (5) above each air hole (9) at the lower end; a transmission bottle passage (32) is provided in the middle of the bottle holder (11); a cover plate (13) is provided on the bottle holder (11) to block the transmission bottle passage (32); one side end of the cover plate (13) is hingedly mounted on the bottle holder (11); a pin shaft at the hinged portion extends out of the inner and outer tubes (5, 6) to connect to a motor I (25); The rotor driving component comprises a pulley transmission pair driven by a motor II (15) and a linkage mechanism, a rotating shaft (14) is coaxially mounted in a driven large pulley (16) of the pulley transmission pair, a steel ball (21) is arranged in the driven large pulley (16) and is elastically embedded in a recess I (23) correspondingly provided on the rotating shaft (14), the linkage mechanism comprises a cam (17) coaxially mounted on the driven large pulley (16), an upper connecting rod (18) and a lower connecting rod (19) are arranged above and below the cam (17) and are respectively mounted on the upper and lower sealing rings (3, 4), and the upper and lower sealing rings (3, 4) press the ends of the upper and lower connecting rods (18, 19) into recesses II (22) correspondingly provided on the cam (17) under the action of correspondingly arranged upper and lower spring elements (26); An upper and lower limit mechanism is provided for limiting the conveying and receiving pipe (24) in a vertical position. In the vertical position, the rotating shaft (14) stops rotating, the upper and lower steel balls (21) are separated from the corresponding notch I (23), and the driven large belt pulley (16) drives the cam (17) to rotate 90 degrees, and then the ends of the upper and lower connecting rods (18, 19) are embedded in the corresponding notch II (22). The upper and lower connecting rods (18, 19) drive the upper and lower sealing rings (3, 4) to be pressed on the upper and lower pressure plates (7, 8) to achieve the docking between the upper conveying pipe (1), the lower conveying pipe (2) and the conveying and receiving pipe.

2. The pneumatic tube flow rotary five-station through-type workstation according to claim 1 is characterized in that: The inner tube (5) comprises an upper circular tube and a lower square tube, the square tube is tangentially connected to the circular tube, and the height of the connection surface between the square tube and the circular tube and the cover plate (13) is greater than the turning radius of the cover plate (13).

3. The pneumatic tube flow rotary five-station through-type workstation according to claim 1 is characterized in that: The inner tube (5) is a square tube.

4. The pneumatic tube flow rotary five-station through-type workstation according to any one of claims 1 to 3, characterized in that: The upper and lower sealing rings (3, 4) are respectively mounted on corresponding sliding guide mechanisms (12).

5. The pneumatic flow rotary five-station through-type workstation according to any one of claims 1 to 3, characterized in that: The pressing surface between each sealing ring and the corresponding pressure plate is a flat surface or an arc surface.

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