Aseptic connection machine

Abstract

This invention provides a sterile pipe-connecting machine, including a base plate with two slide rails mounted on it. A first clamping unit and a second clamping unit are mounted on the slide rails. A rotating unit is mounted on the first clamping unit. A thermal cutting unit, an outward expansion unit, and a clamping unit are mounted on the base plate. This invention uses a driving component C to drive a rotating rod to rotate, causing an arc-shaped pressure plate to rotate outward away from the pipe's flared end. This drives the first and second clamping units to move inward, bringing the flared ends of the two pipes into contact. Simultaneously, it drives the two unfolded arc-shaped pressure plates to move outward. Then, the driving component C drives the rotating rod to rotate, causing the arc-shaped pressure plates to rotate inward to a closed state. The inward movement of the two arc-shaped pressure plates compresses the flared ends of the two pipes, fusing them together to achieve the pipe-connecting process. The large contact area at the pipe connection point results in a good connection effect and high connection strength.

Description

Technical Field

[0001] This invention relates to the field of aseptic connection technology, and more particularly to aseptic connection machines. Background Technology

[0002] A sterile pipe connection machine is a medical device that allows two pipes (such as PVC pipes) to be interchanged and connected in a contaminated environment (i.e., a non-sterile environment) while maintaining the sterility of the connection. It is indispensable in fields such as blood collection and supply, clinical surgery, and biopharmaceuticals.

[0003] Chinese Patent Application No. 2022116964603 discloses a sterile pipe-connecting machine, including a left clamping assembly, a right clamping assembly, a left drive assembly, a right drive assembly, a cutter assembly, and a base assembly. The base assembly has an opening and closing driven gear and an opening and closing driven wheel mounted on its drive shaft. A motor and a propulsion driven gear are mounted on one side of the left fixed seat, and a propulsion drive gear is mounted on the output end of the motor. A pipe clamp is provided on the other side of the left fixed seat. The right drive assembly includes a right fixed seat, and a pipe clamp is provided on the right side of the right fixed seat. The cutter assembly is mounted on the right side of the base, and the cutter of the cutter assembly is located between the left clamping assembly and the right clamping assembly.

[0004] like Figure 22 As shown, when the aseptic pipe-connecting machine connects pipes, it performs heat fusion connection on the pipe ends. The contact area at the pipe connection point is small, resulting in poor pipe connection effect and low connection strength. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a sterile pipe fitting machine. The machine utilizes a drive assembly (C) to drive a rotating rod, which in turn rotates an arc-shaped pressure plate outwards away from the pipe's flared end. This drives the first and second clamping units inwards, bringing the flared ends of the two pipes into contact. Simultaneously, it drives the two unfolded arc-shaped pressure plates outwards. The drive assembly (C) then drives the rotating rod to rotate, causing the arc-shaped pressure plates to rotate inwards to a closed state. The inward movement of the two arc-shaped pressure plates compresses the flared ends of the two pipes, fusing them together to achieve the pipe fitting process. The large contact area at the pipe fitting point results in a good fitting effect and high fitting strength.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The sterile pipe fitting machine includes a base plate, on which two slide rails are mounted. The slide rails are provided with a first clamping unit and a second clamping unit. The first clamping unit is equipped with a rotating unit. The base plate is equipped with a thermal cutting unit, an outward expansion unit, and a clamping unit.

[0008] The first clamping unit and the second clamping unit clamp and fix the pipe, the thermal cutting unit performs thermal cutting on the pipe, the rotating unit drives the cut pipe to rotate, the outward expansion unit expands the cut pipe opening, and the clamping unit clamps the expanded pipe opening to fuse the two pipe openings and complete the connection.

[0009] The thermal cutting unit includes: a fixed base mounted on the base plate; a rotary drive f mounted on the fixed base; a swing arm mounted on the output end of the rotary drive f; and a thermal cutting blade mounted on the swing arm.

[0010] The first clamping unit includes: a U-shaped arm a, which is slidably disposed on the slide rail; a guide rod a, which is installed inside the U-shaped arm a; a sliding block a, which is slidably disposed on the guide rod a, and a limit block a is installed on the U-shaped arm a; a card holder a, which is installed on the sliding block a; a gripper a, which is installed on the U-shaped arm a; a gripper c, which is slidably disposed on the guide rod a; and a driving assembly a, which drives the gripper c to move.

[0011] The second clamping unit includes: a U-shaped arm b, which is slidably disposed on the slide rail; a guide rod b, which is installed inside the U-shaped arm b; a sliding block b, which is slidably disposed on the guide rod b, and a limit block b is installed on the U-shaped arm b; a card holder b, which is installed on the sliding block b; a gripper b, which is installed on the U-shaped arm b; a gripper d, which is slidably disposed on the guide rod b; and a drive assembly b, which drives the gripper d to move.

[0012] The drive assembly a includes: a rotary drive a mounted on the U-shaped arm a; a rotary sleeve a mounted on the output end of the rotary drive a; a transmission sleeve a rotatably mounted on the U-shaped arm a; a belt a sleeved on the rotary sleeve a and the transmission sleeve a; and a screw a mounted on the gripper c, with the screw a threadedly connected to the transmission sleeve a.

[0013] The drive assembly b includes: a rotary drive component b, which is mounted on the U-shaped arm b; a rotary sleeve b, which is mounted on the output end of the rotary drive component b; a transmission sleeve b, which is rotatably mounted on the U-shaped arm b; a belt b, which is sleeved on the rotary sleeve b and the transmission sleeve b; and a screw b, which is mounted on the gripper d and is threadedly connected to the transmission sleeve b.

[0014] The rotating unit includes: a rotating bracket, one of which is rotatably mounted on the gripper a, and the other rotating bracket is rotatably mounted on the gripper c; a gear ring, which is mounted on the outside of the rotating bracket; a rotating drive g, which is mounted on the U-shaped arm a; a gear c, which is mounted on the output end of the rotating drive g and meshes with the gear ring; two rotating shafts, which are located inside the gripper a and the gripper c; and bearings, which are mounted at both ends of the rotating shafts and roll in contact with the outside of the rotating bracket.

[0015] The expansion unit includes: a track mounted on the base plate; a moving block slidably disposed on the track; a support rod mounted on the moving block; a linear drive a mounted on the support rod; a lifting plate mounted on the output end of the linear drive a, the lifting plate having a groove inside; a rotary drive c mounted on the lifting plate; a swing rod rotatably disposed within the groove, the rotary drive c driving the swing rod to swing within the groove; two fixed rods mounted on the swing rod; two baffles mounted at both ends of the fixed rods; and a tapered rod mounted on the baffles, the baffles being heating plates.

[0016] The clamping unit includes: a swing shell, which is installed in the groove; two arc-shaped shells, which are installed on the swing shell; a connecting rod, which is installed on the swing shell; a cylinder a, which is installed on the connecting rod; a block, which is installed on the cylinder a and has a sliding groove inside; two rack plates, which are slidably disposed in the sliding groove; a connecting frame, which is installed on the rack plates; a rotary drive d, which is installed inside the cylinder a; a gear d, which is installed at the output end of the rotary drive d and meshes with the two rack plates; and a clamping assembly, which is installed on the connecting frame.

[0017] The clamping assembly includes: a connecting block mounted on the connecting frame; an arc-shaped frame mounted on the connecting block; two rotating rods rotatably disposed at both ends of the arc-shaped frame; an arc-shaped pressure plate mounted on the rotating rod, the baffle having a placement groove, the arc-shaped pressure plate being located within the placement groove; and a driving assembly c driving the rotating rods to rotate.

[0018] The drive assembly c includes: a fixed sleeve installed at both ends of the arc-shaped frame; an elastic connector disposed inside the fixed sleeve and sleeved on the outside of the rotating rod, one end of the elastic connector being installed on the arc-shaped frame and the other end being installed on the rotating rod; a connecting shaft installed on the rotating rod; a cylinder b installed on the block; a rotary drive e installed inside the cylinder b; a winding shaft installed at the output end of the rotary drive e; and a rope, one end of which is connected to the connecting shaft and the other end of which is wound onto the winding shaft.

[0019] The present invention also includes an extrusion unit, the extrusion unit comprising: a fixed plate; a support bracket mounted on the fixed plate, the support bracket having a concave groove therein; two fixed frames mounted on the fixed plate; a linear drive member b mounted on one of the fixed frames; a pressure block mounted on the output end of the linear drive member b; a support plate mounted on the fixed plate; a linear drive member c mounted on the other fixed frame; and a straight pressure plate mounted on the output end of the linear drive member c.

[0020] The beneficial effects of this invention are as follows:

[0021] (1) In this invention, the rotating rod is driven by the driving component c to rotate, which causes the arc-shaped pressure plate to rotate outward away from the outer opening of the pipe. The first clamping unit and the second clamping unit are driven to move inward, causing the outer openings of the two pipes to contact each other. At the same time, the two unfolded arc-shaped pressure plates are driven to move outward. Then, the driving component c drives the rotating rod to rotate, causing the arc-shaped pressure plate to rotate inward to the closed state. The two arc-shaped pressure plates are driven to move inward, which squeezes the outer openings of the two pipes and makes them fuse together, thus achieving the pipe connection process. The contact area at the pipe connection point is large, resulting in a good pipe connection effect and high connection strength.

[0022] (2) The present invention drives two arc-shaped pressure plates to move outward, drives the first clamping unit and the second clamping unit to move outward, drives the outwardly expanding pipe opening to move to both sides until the arc-shaped pressure plates leave the conical rod; the rotating drive component c drives the swing rod to rotate downward, so that the conical rod leaves the clamping unit and the outwardly expanding pipe, which facilitates the subsequent clamping process.

[0023] (3) Before the clamping process, the two ends of the two pipes are placed into the slot, and the linear drive b drives the pressure block to insert into the slot to press down the two ends of the two pipes. After the clamping process, the linear drive c drives the straight pressure plate to press down on the pipe on the top of the support plate, squeezing the gas in the pipe towards the center, making the pipe full and preventing a flat or dented area from appearing on the pipe.

[0024] (4) In the initial state, the rope is loose. Under the elastic torque of the elastic connector, the two arc-shaped pressure plates are driven to be in a closed state. When the rotating drive e drives the winding shaft to rotate and wind up the rope, the rope pulls the connecting shaft, drives the rotating rod to rotate, and drives the arc-shaped pressure plates to rotate outward to the unfolded state. It should be noted that the two arc-shaped pressure plates are in the unfolded state, which makes it easy to remove the connected pipe.

[0025] (5) This invention can connect two pipes with different diameters, but it should be noted that the diameters of the two pipes should not differ too much, otherwise it will be difficult to proceed. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the first clamping unit of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the driving component a of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the second clamping unit of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the driving component b of the present invention;

[0031] Figure 6 This is a schematic diagram of the first angle of the rotating unit of the present invention;

[0032] Figure 7 This is a schematic diagram of the second angle of the rotating unit of the present invention;

[0033] Figure 8 This is a schematic diagram of the thermal cutting unit structure of the present invention;

[0034] Figure 9 This is a schematic diagram of the external expansion unit structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the second state of the clamping unit and the expansion unit of the present invention;

[0036] Figure 11 This is a schematic diagram of the clamping unit structure of the present invention;

[0037] Figure 12 This is a schematic diagram of the swing rod structure of the present invention;

[0038] Figure 13 This is a schematic diagram of the closed state of the arc-shaped pressure plate of the present invention;

[0039] Figure 14For the present invention Figure 13 Enlarged view of point A in the middle;

[0040] Figure 15 This is a schematic diagram of the structure of the driving component c of the present invention;

[0041] Figure 16 This is a schematic diagram of the extrusion unit structure of the present invention;

[0042] Figure 17 This is a schematic diagram of the first state of the pipe connection of the present invention;

[0043] Figure 18 This is a schematic diagram of the second state of the pipe connection of the present invention;

[0044] Figure 19 This is a schematic diagram of the third state of the pipe connection of the present invention;

[0045] Figure 20 This is a schematic diagram of the fourth state of the pipe connection of the present invention;

[0046] Figure 21 This is a schematic diagram of the fifth state of the pipe connection of the present invention;

[0047] Figure 22 This is a schematic diagram of the pipe connection structure of the present invention;

[0048] Figure 23 This is a schematic diagram of the structure of the card holder a and the sliding block a of the present invention;

[0049] Figure 24 This is a schematic diagram of the first state of the clamping unit and the expansion unit of the present invention;

[0050] Figure 25 This is a schematic diagram of the closed state of the arc-shaped pressure plate of the present invention;

[0051] Figure 26 This is a schematic diagram showing the state of the two pipes with different diameters connected together according to the present invention.

[0052] Figure Labels

[0053] 11. Base plate; 12. Slide rail; 2. First clamping unit; 21. U-shaped arm a; 211. Limiting block a; 22. Guide rod a; 23. Sliding block a; 231. Limiting post; 24. Card holder a; 241. Arc groove; 25. Gripper a; 26. Gripper c; 27. Drive assembly a; 271. Rotary drive component a; 272. Rotary sleeve a; 273. Transmission sleeve a; 274. Belt a; 275. Screw a; 3. Second clamping unit; 31. U-shaped arm b; 311. Limiting block b; 32. Guide rod b; 33. Sliding block b; 3 4. Card holder b; 35. Gripper b; 36. Gripper d; 37. Drive assembly b; 371. Rotary drive component b; 372. Rotary sleeve b; 373. Transmission sleeve b; 374. Belt b; 375. Screw b; 4. Rotary unit; 41. Rotary bracket; 42. Gear ring; 43. Rotary drive component g; 44. Gear c; 45. Rotary shaft; 46. Bearing; 5. Thermal cutting unit; 501. Fixed base; 502. Rotary drive component f; 503. Swing arm; 504. Thermal cutting blade; 6. Outer expansion unit; 601. Track; 602. 603. Moving block; 604. Support rod; 605. Linear drive component a; 606. Lifting plate; 607. Groove; 608. Rotary drive component c; 609. Swing rod; 6000. Fixed rod; 601. Baffle; 602. Placement slot; 610. Conical rod; 7. Clamping unit; 701. Swing shell; 702. Arc shell; 703. Connecting rod; 704. Cylinder a; 705. Block; 7051. Slide groove; 706. Rack plate; 707. Connecting frame; 708. Rotary drive component d; 709. Gear d; 71. Clamping assembly; 711. Connecting block; 712. Arc-shaped frame; 713. Rotating rod; 714. Arc-shaped pressure plate; 72. Drive assembly c; 721. Fixing sleeve; 722. Elastic connector; 723. Connecting shaft; 724. Cylinder b; 725. Rotary drive e; 726. Winding shaft; 727. Rope; 8. Extrusion unit; 801. Fixing plate; 802. Support bracket; 8021. Concave groove; 803. Fixing frame; 804. Linear drive b; 805. Pressure block; 806. Support plate; 807. Linear drive c; 808. Straight pressure plate. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] Example 1

[0058] like Figures 1-22 As shown, this embodiment provides a sterile pipe-connecting machine, including a base plate 11, on which two slide rails 12 are mounted. The slide rails 12 are provided with a first clamping unit 2 and a second clamping unit 3. A rotating unit 4 is mounted on the first clamping unit 2. A thermal cutting unit 5, an outward expansion unit 6, and a clamping unit 7 are mounted on the base plate 11. The first clamping unit 2 and the second clamping unit 3 clamp and fix the pipe. The thermal cutting unit 5 performs thermal cutting on the pipe. The rotating unit 4 drives the cut pipe to rotate. The outward expansion unit 6 expands the cut pipe opening. The clamping unit 7 clamps the expanded pipe opening to fuse the two pipe openings and complete the pipe connection.

[0059] In this embodiment, initially, there is a gap between the first clamping unit 2 and the second clamping unit 3. The initial state of the first clamping unit 2 is as follows: Figure 2 As shown, the initial state of the second clamping unit 3 is as follows: Figure 4 As shown;

[0060] like Figure 2 and Figure 3As shown, the first clamping unit 2 includes: a U-shaped arm a21, which is slidably mounted on the slide rail 12; a guide rod a22, which is installed inside the U-shaped arm a21; a sliding block a23, which is slidably mounted on the guide rod a22, and a limit block a211 is installed on the U-shaped arm a21; a card holder a24, which is installed on the sliding block a23; a gripper a25, which is installed on the U-shaped arm a21; a gripper c26, which is slidably mounted on the guide rod a22; and a drive assembly a27, which drives the gripper c26 to move.

[0061] like Figure 2 and Figure 3 As shown, the drive assembly a27 includes: a rotary drive a271, which is mounted on the U-shaped arm a21; a rotary sleeve a272, which is mounted on the output end of the rotary drive a271; a transmission sleeve a273, which is rotatably mounted on the U-shaped arm a21; a belt a274, which is sleeved on the rotary sleeve a272 and the transmission sleeve a273; and a screw a275, which is mounted on the gripper c26; the screw a275 is threadedly connected to the transmission sleeve a273.

[0062] like Figure 4 and Figure 5 As shown, the second clamping unit 3 includes: a U-shaped arm b31, which is slidably mounted on the slide rail 12; a guide rod b32, which is installed inside the U-shaped arm b31; a sliding block b33, which is slidably mounted on the guide rod b32; a limit block b311 is installed on the U-shaped arm b31; a card holder b34, which is installed on the sliding block b33; a gripper b35, which is installed on the U-shaped arm b31; a gripper d36, which is slidably mounted on the guide rod b32; a drive assembly b37, which drives the gripper d36 to move; and a screw b375 is threadedly connected to the transmission sleeve b373.

[0063] like Figure 4 and Figure 5 As shown, the drive assembly b37 includes: a rotary drive b371, which is mounted on the U-shaped arm b31; a rotary sleeve b372, which is mounted on the output end of the rotary drive b371; a transmission sleeve b373, which is rotatably mounted on the U-shaped arm b31; a belt b374, which is sleeved on the rotary sleeve b372 and the transmission sleeve b373; and a screw b375, which is mounted on the gripper d36. The movement of the U-shaped arm a21 and the U-shaped arm b31 on the slide rail 12 is preferably driven by a cylinder (not shown in the figure), which can realize the first clamping unit 2 and the second clamping unit 3 moving towards each other or in opposite directions.

[0064] like Figure 6and Figure 7 As shown, the rotating unit 4 includes: a rotating bracket 41, one of which is rotatably mounted on a gripper a25, and the other rotating bracket 41 is rotatably mounted on a gripper c26; a gear ring 42, which is mounted on the outside of the rotating bracket 41; a rotating drive g43, which is mounted on the U-shaped arm a21; a gear c44, which is mounted on the output end of the rotating drive g43 and meshes with the gear ring 42; two rotating shafts 45, which are located inside the gripper a25 and the gripper c26; and bearings 46, which are mounted at both ends of the rotating shafts 45 and roll in contact with the outside of the rotating bracket 41.

[0065] In this embodiment, two pipes are manually placed in the slots on both sides of the card holder a24 and the slots on both sides of the card holder b34; the rotary drive a271 drives the rotating sleeve a272 to rotate, and drives the transmission sleeve a273 to rotate through the belt a274. According to the principle of thread transmission, the screw a275 is driven to move forward, which drives the gripper c26 to move forward. The gripper c26 pushes the sliding block a23 and the card holder a24 to move forward until the gripper c26 contacts the gripper a25. At this time, the two rotating card holders 41 and the card holder a24 inside the gripper c26 and gripper a25 clamp the pipes.

[0066] The rotary drive component b371 drives the rotating sleeve b372 to rotate, and drives the transmission sleeve b373 to rotate via the belt b374. According to the principle of thread transmission, the drive screw b375 moves forward, which drives the gripper d36 to move forward. The gripper d36 pushes the sliding block b33 and the card holder b34 to move forward until the gripper d36 contacts the gripper b35. At this time, the gripper d36, the gripper b35, and the card holder b34 clamp the pipe. The first clamping unit 2 and the second clamping unit 3 clamp the two pipes.

[0067] like Figure 8 As shown, the thermal cutting unit 5 includes: a fixed base 501, which is mounted on the base plate 11; a rotary drive f502, which is mounted on the fixed base 501; a swing arm 503, which is mounted on the output end of the rotary drive f502; and a thermal cutting blade 504, which is mounted on the swing arm 503. The rotary drive f502 drives the swing arm 503 to rotate, which in turn drives the thermal cutting blade 504 to rotate and perform thermal cutting on the two pipes. After cutting, the rotary drive f502 drives the thermal cutting blade 504 to move to the initial position. The thermal cutting blade 504 is electrically heated.

[0068] In this embodiment, the rotary drive component g43 drives the gear c44 to rotate. Since the gear c44 meshes with the gear ring 42, it drives the two rotary clamps 41 to rotate 180 degrees, which in turn drives the two pipes on the cut side to rotate 180 degrees, thus exchanging the positions of the two pipes to facilitate the subsequent pipe connection process. It also drives the first clamping unit 2 and the second clamping unit 3 to move outward (in opposite directions), increasing the distance between the openings of the two cut pipes and leaving space for the subsequent insertion of the tapered rod 610.

[0069] It should be noted that: such as Figure 23 As shown, the card holder a24 has arc-shaped grooves 241 at both ends, and the sliding block a23 has a limiting post 231 slidably mounted on the top. The limiting post 231 and the arc-shaped groove 241 are magnetically attracted to each other. In the initial state, the limiting post 231 is inserted into the arc-shaped groove 241, and the movement of the sliding block a23 drives the card holder a24 to move. In the rotation process, the limiting post 231 is driven to move downward by the electric telescopic rod (the limiting post 231 retracts into the sliding block a23), and the limiting post 231 leaves the arc-shaped groove 241, so as not to interfere with the rotation process.

[0070] like Figures 9-13 As shown, the expansion unit 6 includes: a track 601 mounted on the base plate 11; a moving block 602 slidably mounted on the track 601, the moving block 602 moving on the track 601 preferably driven by a cylinder (not shown in the figure); a support rod 603 mounted on the moving block 602; a linear drive a 604 mounted on the support rod 603; and a lifting plate 605 mounted on the output end of the linear drive a 604, the lifting plate 605 having a groove 6051 inside. A rotary drive component c606 is mounted on a lifting plate 605; a swing rod 607 is rotatably disposed within a groove 6051, and the rotary drive component c606 drives the swing rod 607 to swing within the groove 6051; two fixed rods 608 are mounted on the swing rod 607; two baffles 609 are mounted at both ends of the fixed rods 608; and a tapered rod 610 is mounted on the baffle 609, which is a heating plate, and a placement groove 6091 is provided on the baffle 609.

[0071] In this embodiment, the moving block 602 slides on the track 601, driving the conical rod 610 to move, and the linear drive a604 drives the conical rod 610 to rise or fall, thereby adjusting the position of the conical rod 610.

[0072] The drive tapered rod 610 moves to the space between the two cut pipe openings, driving the first clamping unit 2 and the second clamping unit 3 to move inward (towards each other), driving the pipe openings on both sides to move and fit over the outside of the tapered rod 610 (e.g., ...). Figure 17As shown), the heating plate on the baffle 609 heats the conical rod 610 and the arc-shaped pressure plate 714, and the pipe openings on both sides expand outwards from the conical rod 610 onto the arc-shaped pressure plate 714 (as shown). Figure 18 (as shown);

[0073] like Figures 9-13 As shown, the clamping unit 7 includes: a swing shell 701, which is installed in the groove 6051; two arc-shaped shells 702, which are installed on the swing shell 701; a connecting rod 703, which is installed on the swing shell 701; a cylindrical body a 704, which is installed on the connecting rod 703; a block 705, which is installed on the cylindrical body a 704, and a sliding groove 7051 is formed in the block 705; and a rack. Plate 706, two rack plates 706 are slidably disposed in the slide groove 7051; connecting frame 707 is mounted on the rack plate 706; rotary drive component d708 is mounted in the cylinder a704; gear d709 is mounted at the output end of the rotary drive component d708 and meshes with the two rack plates 706; clamping assembly 71 is mounted on the connecting frame 707.

[0074] In this embodiment, the rotary drive d708 drives the gear d709 to rotate, causing the two rack plates 706 to move outward, which in turn drives the two arc-shaped pressure plates 714 to move towards each other or in opposite directions.

[0075] The two arc-shaped pressure plates 714 are driven to move outward (opposite motion), the first clamping unit 2 and the second clamping unit 3 are driven to move outward (opposite motion), and the flared pipe opening is driven to move to both sides (at this time, the flared pipe opening rests on the arc-shaped pressure plate 714) until the arc-shaped pressure plate 714 leaves the conical rod 610 (as shown). Figure 19 (as shown);

[0076] The rotary drive component c606 drives the swing rod 607 to rotate downwards, causing the tapered rod 610 to disengage from the clamping unit 7 and the outwardly expanding pipe (as shown in the image). Figure 10 (as shown);

[0077] like Figures 9-13 As shown, the clamping assembly 71 includes: a connecting block 711, which is mounted on the connecting frame 707; an arc-shaped frame 712, which is mounted on the connecting block 711; two rotating rods 713, which are rotatably disposed at both ends of the arc-shaped frame 712; an arc-shaped pressure plate 714, which is mounted on the rotating rod 713; and a driving assembly c72, which drives the rotating rod 713 to rotate. A placement groove 6091 is provided in the baffle 609, and the arc-shaped pressure plate 714 is located in the placement groove 6091.

[0078] It should be noted that: such as Figure 24 In the initial state of the expansion unit 6 and the clamping unit 7, the tapered rod 610 passes through two (closed) arc-shaped pressure plates 714, which are located in the placement groove 6091;

[0079] In this embodiment, the two arc-shaped pressure plates 714 are driven to move inward (towards each other), the first clamping unit 2 and the second clamping unit 3 are driven to move inward (towards each other), and the outwardly flared pipe opening is driven to move inward (at this time, the outwardly flared pipe opening rests on the arc-shaped pressure plates 714) until the two arc-shaped pressure plates 714 contact (e.g., Figure 20 (as shown);

[0080] Drive assembly C72 drives rotating rod 713 to rotate, causing arc-shaped pressure plate 714 to rotate outward away from the pipe flare (at this time, arc-shaped pressure plate 714 is in the unfolded state), driving first clamping unit 2 and second clamping unit 3 to move inward, driving the two pipe flares to contact each other, and simultaneously driving the two unfolded arc-shaped pressure plates 714 to move outward. Then, drive assembly C72 drives rotating rod 713 to rotate, causing arc-shaped pressure plate 714 to rotate inward to the closed state (e.g., Figure 21 (as shown);

[0081] The two arc-shaped pressure plates 714 are driven to move inward (towards each other) to squeeze the flared ends of the two pipes together, thus achieving the pipe connection process. The contact area at the pipe connection point is large, resulting in a good pipe connection effect and high connection strength.

[0082] It should be noted that the expansion, dispersal, and clamping processes are relatively short, and the expansion port of the pipe is still in a molten state.

[0083] like Figure 14 As shown, the drive assembly c72 includes: a fixed sleeve 721, which is installed at both ends of the arc frame 712; an elastic connector 722, which is disposed inside the fixed sleeve 721 and sleeved on the outside of the rotating rod 713, with one end of the elastic connector 722 installed on the arc frame 712 and the other end installed on the rotating rod 713; a connecting shaft 723, which is installed on the rotating rod 713; a cylinder b724, which is installed on the block 705; a rotary drive e725, which is installed inside the cylinder b724; a winding shaft 726, which is installed at the output end of the rotary drive e725; and a rope 727, one end of which is connected to the connecting shaft 723 and the other end of which is wound onto the winding shaft 726.

[0084] It should be noted that in the initial state, the rope 727 is slack. Under the elastic torque of the elastic connector 722, the two arc-shaped pressure plates 714 are driven into a closed state (e.g., Figure 13(As shown); When the rotary drive e725 drives the winding shaft 726 to rotate, it winds up and tightens the rope 727. The rope 727 pulls the connecting shaft 723, which drives the rotating rod 713 to rotate, causing the arc-shaped pressure plate 714 to rotate outward to the unfolded state (as shown). Figure 25 (As shown); It should be noted that the two arc-shaped pressure plates 714 are in the unfolded state, which makes it easy to remove the connected pipes;

[0085] Regarding the arrangement of rope 727, grooves for the sliding of rope 727 are provided in the arc frame 712, connecting block 711, connecting frame 707, rack plate 706, and square block 705. Setting this groove is a conventional technical means and will not be described in detail here.

[0086] It is important to emphasize that: Figure 26 As shown, this embodiment can connect two pipes with different diameters, but it should be noted that the diameters of the two pipes cannot differ too much, otherwise it will be difficult to proceed.

[0087] Example 2

[0088] like Figure 16 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0089] like Figure 16 As shown, this embodiment also includes an extrusion unit 8, which includes: a fixed plate 801; a support bracket 802, which is mounted on the fixed plate 801 and has a concave groove 8021; two fixed frames 803, which are mounted on the fixed plate 801; a linear drive component b804, which is mounted on one of the fixed frames 803; a pressure block 805, which is mounted on the output end of the linear drive component b804; a support plate 806, which is mounted on the fixed plate 801; a linear drive component c807, which is mounted on the other fixed frame 803; and a straight pressure plate 808, which is mounted on the output end of the linear drive component c807.

[0090] Two extrusion units 8 are provided. Before the clamping process, the two ends of the two pipes are placed into the concave groove 8021. The linear drive unit b804 drives the pressure block 805 to insert into the concave groove 8021 and press down on the two ends of the two pipes. After the clamping process, the linear drive unit c807 drives the straight pressure plate 808 to press on the top pipe of the support plate 806, squeezing the gas in the pipe towards the center, making the pipe full and preventing a flat or dented area from appearing on the pipe.

[0091] Work steps

[0092] Step 1, Clamping process: Manually place the two pipes in the slots on both sides of the clamping bracket a24 and the slots on both sides of the clamping bracket b34; the rotating drive component a271 drives the rotating sleeve a272 to rotate, and drives the transmission sleeve a273 to rotate through the belt a274. According to the principle of thread transmission, the screw a275 is driven to move forward, which drives the clamping jaw c26 to move forward. The clamping jaw c26 pushes the sliding block a23 and the clamping bracket a24 to move forward until the clamping jaw c26 contacts the clamping jaw a25. At this time, the clamping jaw c26 and the two rotating clamping brackets 41 and the clamping bracket a24 inside the clamping jaw a25 clamp the pipes.

[0093] The rotary drive component b371 drives the rotating sleeve b372 to rotate, and drives the transmission sleeve b373 to rotate via the belt b374. According to the principle of thread transmission, the drive screw b375 moves forward, which drives the gripper d36 to move forward. The gripper d36 pushes the sliding block b33 and the card holder b34 to move forward until the gripper d36 contacts the gripper b35. At this time, the gripper d36, the gripper b35, and the card holder b34 clamp the pipe. The first clamping unit 2 and the second clamping unit 3 clamp the two pipes.

[0094] Step 2, thermal cutting process: The rotary drive unit f502 drives the swing arm 503 to rotate, which in turn drives the thermal cutting blade 504 to rotate to perform thermal cutting on the two pipes. After cutting, the rotary drive unit f502 drives the thermal cutting blade 504 to move back to the initial position.

[0095] Step 3, Rotation Process: The rotation drive component g43 drives the gear c44 to rotate. Since the gear c44 meshes with the gear ring 42, it drives the two rotating clamps 41 to rotate 180 degrees, which in turn drives the two pipes on the cut side to rotate 180 degrees, thus exchanging the positions of the two pipes to facilitate the subsequent pipe connection process; it drives the first clamping unit 2 and the second clamping unit 3 to move outward (in opposite directions), increasing the distance between the openings of the two cut pipes and leaving space for the subsequent movement of the tapered rod 610;

[0096] Step 4, Outward Expansion Process: Drive the tapered rod 610 to move between the two cut pipe openings, drive the first clamping unit 2 and the second clamping unit 3 to move inward (towards each other), and drive the pipe openings on both sides to move and fit over the outside of the tapered rod 610 (e.g., Figure 17 As shown), the heating plate on the baffle 609 heats the conical rod 610 and the arc-shaped pressure plate 714, and the pipe openings on both sides expand outwards from the conical rod 610 onto the arc-shaped pressure plate 714 (as shown). Figure 18 (as shown);

[0097] Step 5, Dispersal Process: Drive the two arc-shaped pressure plates 714 to move outwards (opposite motion), drive the first clamping unit 2 and the second clamping unit 3 to move outwards (opposite motion), drive the flared pipe opening to move to both sides (at this time, the flared pipe opening rests on the arc-shaped pressure plates 714), until the arc-shaped pressure plates 714 leave the conical rod 610 (e.g., Figure 19 (as shown);

[0098] The rotary drive component c606 drives the swing rod 607 to rotate downwards, causing the tapered rod 610 to disengage from the clamping unit 7 and the outwardly expanding pipe (as shown in the image). Figure 10 (as shown);

[0099] Step Six, Clamping Process: Drive the two arc-shaped pressure plates 714 to move inward (towards each other), drive the first clamping unit 2 and the second clamping unit 3 to move inward (towards each other), and drive the outwardly flared pipe opening to move inward (at this time, the outwardly flared pipe opening rests on the arc-shaped pressure plates 714) until the two arc-shaped pressure plates 714 contact (e.g., Figure 20 (as shown);

[0100] Drive assembly C72 drives rotating rod 713 to rotate, causing arc-shaped pressure plate 714 to rotate outward away from the pipe flare (at this time, arc-shaped pressure plate 714 is in the unfolded state), driving first clamping unit 2 and second clamping unit 3 to move inward, driving the two pipe flares to contact each other, and simultaneously driving the two unfolded arc-shaped pressure plates 714 to move outward. Then, drive assembly C72 drives rotating rod 713 to rotate, causing arc-shaped pressure plate 714 to rotate inward to the closed state (e.g., Figure 21 (as shown);

[0101] The two arc-shaped pressure plates 714 are driven to move inward (towards each other) to squeeze the flared ends of the two pipes together, thus completing the pipe connection process.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sterile pipe-connecting machine, comprising a base plate (11), characterized in that, Two slide rails (12) are installed on the base plate (11). The slide rails (12) are provided with a first clamping unit (2) and a second clamping unit (3). The first clamping unit (2) is provided with a rotating unit (4). The base plate (11) is provided with a thermal cutting unit (5), an outward expansion unit (6) and a clamping unit (7). The first clamping unit (2) and the second clamping unit (3) clamp and fix the pipe, the thermal cutting unit (5) performs thermal cutting on the pipe, the rotating unit (4) drives the pipe after cutting to rotate, the outward expansion unit (6) expands the pipe opening after cutting, and the clamping unit (7) clamps the expanded pipe opening to fuse the two pipe openings and complete the pipe connection. The thermal cutting unit (5) includes: a fixed base (501) mounted on the base plate (11); a rotary drive f (502) mounted on the fixed base (501); a swing arm (503) mounted on the output end of the rotary drive f (502); and a thermal cutting blade (504) mounted on the swing arm (503). The expansion unit (6) includes: a track (601) mounted on the base plate (11); a moving block (602) slidably mounted on the track (601); a support rod (603) mounted on the moving block (602); a linear drive a (604) mounted on the support rod (603); a lifting plate (605) mounted at the output end of the linear drive a (604), and a groove (6051) provided in the lifting plate (605); and a rotary drive c (606). The rotary drive component c (606) is mounted on the lifting plate (605); the swing rod (607) is rotatably disposed in the groove (6051), and the rotary drive component c (606) drives the swing rod (607) to swing in the groove (6051); the fixed rod (608) is mounted on the swing rod (607); the baffle (609) is mounted on both ends of the fixed rod (608); the tapered rod (610) is mounted on the baffle (609), and the baffle (609) is a heating plate; The clamping unit (7) includes: a swing shell (701), which is installed in the groove (6051); an arc-shaped shell (702), two of which are installed on the swing shell (701); a connecting rod (703), which is installed on the swing shell (701); a cylinder a (704), which is installed on the connecting rod (703); a block (705), which is installed on the cylinder a (704), and the block (705) has a sliding groove (7051) inside it; and a rack plate. (706), the two rack plates (706) are slidably disposed in the slide groove (7051); connecting frame (707), the connecting frame (707) is installed on the rack plate (706); rotary drive d (708), the rotary drive d (708) is installed in the cylinder a (704); gear d (709), the gear d (709) is installed at the output end of the rotary drive d (708), the gear d (709) meshes with the two rack plates (706); clamping assembly (71), the clamping assembly (71) is installed on the connecting frame (707).

2. The aseptic pipe-connecting machine according to claim 1, characterized in that, The first clamping unit (2) includes: U-shaped arm a (21), the U-shaped arm a (21) is slidably disposed on the slide rail (12); Guide rod a (22), the guide rod a (22) is installed inside the U-shaped arm a (21); Sliding block a (23), the sliding block a (23) is slidably disposed on the guide rod a (22), and a limit block a (211) is installed on the U-shaped arm a (21); Card holder a (24), said card holder a (24) is mounted on said sliding block a (23); Gripper a (25), said gripper a (25) is mounted on said U-shaped arm a (21); The gripper c (26) is slidably disposed on the guide rod a (22); Drive component a (27) drives the gripper c (26) to move.

3. The aseptic pipe-connecting machine according to claim 2, characterized in that, The second clamping unit (3) includes: U-shaped arm b (31), the U-shaped arm b (31) is slidably disposed on the slide rail (12); Guide rod b (32), the guide rod b (32) is installed inside the U-shaped arm b (31); Sliding block b (33), the sliding block b (33) is slidably disposed on the guide rod b (32), and a limit block b (311) is installed on the U-shaped arm b (31). Card holder b (34), said card holder b (34) is mounted on said sliding block b (33); Gripper b (35), said gripper b (35) is mounted on said U-shaped arm b (31); The gripper d (36) is slidably disposed on the guide rod b (32); Drive component b (37) drives the gripper d (36) to move.

4. The aseptic pipe-connecting machine according to claim 3, characterized in that, The driving component a (27) includes: A rotary drive a (271) is mounted on the U-shaped arm a (21); Rotating sleeve a (272), the rotating sleeve a (272) is installed at the output end of the rotating drive a (271); Transmission sleeve a (273), which is rotatably mounted on the U-shaped arm a (21); Belt a (274), which is sleeved on the rotating sleeve a (272) and the transmission sleeve a (273); Screw a (275), the screw a (275) is mounted on the jaw c (26), and the screw a (275) is threadedly connected to the transmission sleeve a (273); The driving component b (37) includes: Rotary drive component b (371), said rotary drive component b (371) is mounted on the U-shaped arm b (31); Rotating sleeve b (372), the rotating sleeve b (372) is installed at the output end of the rotating drive component b (371); Transmission sleeve b (373), which is rotatably mounted on the U-shaped arm b (31); Belt b (374), which is sleeved on the rotating sleeve b (372) and the transmission sleeve b (373); Screw b (375) is mounted on the jaw d (36) and is threadedly connected to the transmission sleeve b (373).

5. The aseptic pipe-connecting machine according to claim 2, characterized in that, The rotating unit (4) includes: Rotary card holder (41), one of the rotary card holders (41) is rotatably mounted on the gripper a (25), and the other rotary card holder (41) is rotatably mounted on the gripper c (26); A toothed ring (42) is mounted on the outside of the rotating bracket (41); A rotary drive component g (43) is mounted on the U-shaped arm a (21); Gear c (44), the gear c (44) is installed at the output end of the rotary drive g (43), and the gear c (44) meshes with the gear ring (42); Rotating shaft (45), two of the rotating shafts (45) are disposed in the gripper a (25), and two of the rotating shafts (45) are disposed in the gripper c (26); The bearing (46) is installed at both ends of the rotating shaft (45) and makes rolling contact with the outer side of the rotating bracket (41).

6. The aseptic pipe-connecting machine according to claim 1, characterized in that, The clamping assembly (71) includes: A connecting block (711) is mounted on the connecting frame (707); An arc-shaped frame (712) is mounted on the connecting block (711); Rotating rods (713), two of the rotating rods (713) are rotatably disposed at both ends of the arc-shaped frame (712); An arc-shaped pressure plate (714) is installed on the rotating rod (713). A placement groove (6091) is provided in the baffle (609), and the arc-shaped pressure plate (714) is located in the placement groove (6091). Drive component c (72) drives the rotating rod (713) to rotate.

7. The aseptic pipe-connecting machine according to claim 6, characterized in that, The driving component c (72) includes: A fixing sleeve (721) is installed at both ends of the arc-shaped frame (712); An elastic connector (722) is provided inside the fixed sleeve (721). The elastic connector (722) is sleeved on the outside of the rotating rod (713). One end of the elastic connector (722) is installed on the arc frame (712), and the other end is installed on the rotating rod (713). A connecting shaft (723) is mounted on the rotating rod (713); Cylinder b (724), wherein cylinder b (724) is mounted on the block (705); A rotary drive element e (725) is installed inside the cylinder b (724); A take-up shaft (726) is mounted on the output end of the rotary drive element e (725); A rope (727), one end of which is connected to the connecting shaft (723), and the other end of which is wound onto the winding shaft (726).

8. The aseptic pipe-connecting machine according to claim 1, characterized in that, It also includes an extrusion unit (8), which includes: Fixing plate (801); Support bracket (802), the support bracket (802) is installed on the fixing plate (801), and a concave groove (8021) is provided in the support bracket (802). Fixture (803), two of the fixtures (803) are mounted on the fixing plate (801); A linear drive element b (804) is mounted on one of the mounting brackets (803); Pressure block (805), the pressure block (805) is installed at the output end of the linear drive component b (804); A support plate (806) is mounted on the fixing plate (801); A linear drive component c (807) is mounted on another of the aforementioned brackets (803); A straight pressure plate (808) is installed at the output end of the linear drive component c (807).

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