Magnetic suspension transfer clamp and bag arranging machine

Abstract

The invention discloses a magnetic suspension transfer clamp and a bag tidying machine, and relates to the technical field of bag tidying machines, the magnetic suspension transfer clamp comprises an external magnetic suspension stator and a magnetic suspension mover arranged above the magnetic suspension stator, the magnetic suspension mover is provided with a mounting plate, the mounting plate is provided with two rotating parts, the two rotating parts are rotatably connected with clamping jaws respectively, and the clamping jaws are connected with the magnetic suspension mover. The two clamping jaws can be synchronously driven to rotate in a reciprocating mode with the rotating axis of the rotating piece as the circle center so as to clamp or release an opening pipe of the powder-liquid double-chamber bag. According to the magnetic suspension transfer clamp, the magnetic suspension rotor above the magnetic suspension stator is driven by the external magnetic suspension stator, so that the transfer clamp is driven to perform station switching and transfer operation of the powder-liquid double-chamber bag, the frictional resistance in the movement process of the transfer clamp is reduced, and the generation of friction particles is reduced; the friction particles are prevented from being mixed into powder in the bag in the transferring process of the powder-liquid double-chamber bag, the powder is effectively prevented from being polluted by the friction particles, and the purity and quality stability of the filled powder are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of bag sorting machine technology, and particularly to a magnetic levitation transfer fixture and a bag sorting machine. Background Technology

[0002] Dual-chamber bag packaging is a ready-to-use infusion system that uses a special technology to divide a regular plastic infusion bag into two independent, sealed chambers, each containing a different medication. Before use, the two chambers are connected and mixed in the sealed chambers for intravenous infusion. Based on the state of the medication in the chambers, it is generally divided into two types: liquid-liquid dual-chamber bags and powder-liquid dual-chamber bags. After sterilization, the powder-liquid dual-chamber bags are transferred by a bag sorting machine, and then by a robot to a powder dispensing machine. To meet different design requirements and flexible production needs, the bag sorting machine uses a magnetic levitation structure. The clamps are placed on a magnetic levitation mover, which clamps the opening of the powder-liquid dual-chamber bag onto the filling interface seat. A slider moves the filling interface seat, transporting the powder-liquid dual-chamber bag to different workstations.

[0003] However, existing transfer fixtures use a synchronous belt to drive a slider, which results in high frictional resistance and generates friction particles, affecting the purity and quality stability of the powder after filling. Furthermore, the spacing and clamping force of the transfer fixtures are not adjustable, causing impact on the magnetic levitation actuator during bag loading and unloading, affecting the positioning accuracy of the transfer fixture when holding the powder-liquid dual-chamber bag. Therefore, this paper proposes a magnetic levitation transfer fixture and bag sorting machine to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic levitation transfer clamp and a bag sorting machine, which solves the technical problem that existing transfer clamps are prone to generating friction particles during the transfer process, affecting the quality of powder after filling.

[0005] To achieve the above objectives, the present invention provides a magnetic levitation transfer fixture, comprising: an external magnetic levitation stator and a magnetic levitation mover disposed above the magnetic levitation stator, wherein the transfer fixture is disposed on the magnetic levitation mover;

[0006] The transfer clamp includes: a mounting plate disposed on the top surface of the magnetic levitation mover; two rotating components are disposed on the mounting plate; the two rotating components are rotatably connected to grippers; the two grippers can be synchronously driven to reciprocate about the rotation axis of the rotating components to grip or release the mouth tube of the powder-liquid dual-chamber bag.

[0007] Preferably, a fixing part is provided at the second end of the mounting plate, a guide shaft is slidably provided on the side of the fixing part, a push shaft is provided at the first end of the guide shaft, and strip grooves are respectively provided at the first ends of the two grippers. The two strip grooves are set at an angle, and the push shaft is slidably connected to the two strip grooves respectively.

[0008] Preferably, the second ends of the two grippers are respectively provided with clamping parts, and the two clamping parts are provided with snap-fit ​​grooves on opposite sides, and the two snap-fit ​​grooves cooperate to clamp the lower end of the tube.

[0009] Preferably, a limiting plate is provided on the end face of the first end of the mounting plate, and a limiting groove is provided on the upper surface of the limiting plate, the limiting groove being used to engage the upper end of the inlet tube.

[0010] Preferably, an adjusting rod is provided at the second end of the gripper, and when the gripper clamps the opening tube of the powder-liquid dual-chamber bag, one end of the adjusting rod abuts against the side of the limiting plate.

[0011] Preferably, the gripper is provided with an assembly hole, and a resin bushing is sleeved on the outer circumferential side of the rotating part, with the outer circumferential side of the resin bushing conforming to the wall of the assembly hole.

[0012] Preferably, a gasket is provided on the top surface of the mounting plate, and the top surface of the gasket is in contact with the bottom surface of the gripper.

[0013] Preferably, the fixing part is provided with a mounting hole, and a shaft support is provided in the mounting hole, the shaft support being sleeved on the outer peripheral side of the guide shaft.

[0014] A bag sorting machine includes the magnetic levitation transfer fixture described in any one of the above claims, and further includes a first pusher and a second pusher. The first pusher is used to push the guide shaft to reciprocate so as to drive the gripper to reciprocate about the rotation axis of the rotating component. The telescopic end of the second pusher is provided with a positioning plate. When the magnetic levitation transfer fixture is located at the upper bag station or the lower bag station, the telescopic end of the first pusher is used to abut against the guide shaft, and the positioning plate is used to abut against the mounting plate.

[0015] Preferably, a baffle is provided at the second end of the guide shaft, an elastic element is provided on the side of the mounting plate facing away from the gripper, and the other end of the elastic element is connected to the baffle.

[0016] Compared to the aforementioned background technology, the magnetic levitation transfer fixture provided by this invention has the following beneficial effects: By driving an external magnetic levitation stator to move an upper magnetic levitation mover, the transfer fixture performs station switching and transfer operations of powder-liquid dual-chamber bags. Compared to the traditional synchronous belt-driven slider transmission method, this significantly reduces frictional resistance during the transfer fixture's movement, reduces the generation of friction particles, and prevents friction particles from being mixed into the powder inside the bag during the transfer process. This effectively prevents powder contamination by friction particles and ensures the purity and quality stability of the powder after filling. Simultaneously, the distance and clamping force between the two jaws of the transfer fixture can be flexibly adjusted. During bag loading and unloading operations, the powder-liquid dual-chamber bag does not contact the magnetic levitation mover, completely preventing impact on the mover and improving its operational stability. This, in turn, enhances the clamping and positioning accuracy of the powder-liquid dual-chamber bag's opening, effectively ensuring the quality and efficiency of the powder-liquid dual-chamber bag transfer operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the magnetic levitation transfer fixture used in an embodiment of the present invention when holding the tube.

[0019] Figure 2 This is a three-dimensional structural diagram of the magnetic levitation transfer fixture provided in an embodiment of the present invention;

[0020] Figure 3 This is a top view of the magnetic levitation transfer fixture provided in an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional schematic diagram of the magnetic levitation transfer fixture provided in an embodiment of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a three-dimensional structural diagram of the magnetic levitation transfer fixture provided in an embodiment of the present invention.

[0024] Specifically, 1-magnetic levitation mover; 2-mounting plate; 201-fixed part; 202-mounting hole; 3-rotating part; 4-gripper; 401-strip groove; 402-clamping part; 403-snap groove; 404-assembly hole; 5-powder-liquid dual-chamber bag; 501-mouth tube; 6-limiting plate; 601-limiting groove; 7-adjusting rod; 8-guide shaft; 9-push shaft; 10-resin bushing; 11-shield; 12-shaft support; 13-baffle; 14-elastic part; 15-first pusher; 16-second pusher; 17-positioning plate. Detailed Implementation

[0025] 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.

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, to achieve the above objectives, the present invention provides a magnetic levitation transfer fixture, comprising: an external magnetic levitation stator (not shown in the figure) and a magnetic levitation mover 1 disposed above the magnetic levitation stator, wherein a transfer fixture is disposed on the magnetic levitation mover 1; the transfer fixture includes a mounting plate 2 disposed on the magnetic levitation mover 1, and two rotating members 3 disposed on the mounting plate 2, the two rotating members 3 being rotatably connected to grippers 4 respectively, the rotating members 3 passing through the middle part of the two grippers 4, according to the lever principle, when one end of the gripper 4 is controlled to rotate in the forward direction with the rotation axis of the rotating member 3 as the center, the other end of the gripper 4 will simultaneously rotate in the reverse direction with the same rotation axis of the rotating member 3 as the center, so as to drive the two grippers 4 to move closer or further away from each other, thereby realizing the stable gripping and release of the nozzle 501 of the powder-liquid dual-chamber bag 5. The external magnetic levitation stator drives the magnetic levitation mover 1 above it, thereby driving the transfer fixture to switch work positions and transfer the powder-liquid dual-chamber bag 5. Compared with the traditional synchronous belt drive slider transmission method, the frictional resistance during the movement of the transfer fixture is greatly reduced, the generation of friction particles is reduced, and friction particles are prevented from being mixed into the powder in the bag during the transfer process of the powder-liquid dual-chamber bag 5. This effectively prevents the powder from being contaminated by friction particles and ensures the purity and quality stability of the powder after filling.

[0028] It should be noted that by flexibly adjusting the distance and clamping force between the two jaws 4 of the transfer fixture, the powder-liquid dual-chamber bag 5 and the magnetic levitation mover 1 do not come into contact during the bag-up and bag-down operation, and there is no impact on the magnetic levitation mover 1, which improves the running stability of the magnetic levitation mover 1, thereby improving the clamping and positioning accuracy of the mouth tube 501 of the powder-liquid dual-chamber bag 5, and effectively ensuring the quality and efficiency of the powder-liquid dual-chamber bag 5 transfer operation.

[0029] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, a fixing part 201 is provided at the right end of the mounting plate 2, and a guide shaft 8 is slidably provided on the side of the fixing part 201. The guide shaft 8 extends along a first direction and can move linearly along the first direction. A push shaft 9 is provided on the bottom surface of the left end of the guide shaft 8. The push shaft 9 extends along a second direction. At the same time, strip grooves 401 are respectively provided at the first ends of the two grippers 4. The two strip grooves 401 are set at an angle. Specifically, the strip grooves 401 on the two grippers 4 are arranged crosswise on the horizontal projection plane. The push shaft 9 is slidably connected to the two strip grooves 401 respectively. By pushing and pulling the guide shaft 8 to move linearly along the first direction, the guide shaft 8 drives the push shaft 9 to slide synchronously relative to the two strip grooves 401, driving the two grippers 4 to move synchronously in opposite directions with the rotation axis of the rotating member 3 as the center, so as to realize the gripping and releasing of the mouth tube 501 of the powder and liquid double chamber bag 5. The key to this design is to ensure the synchronicity of the movement of the two grippers 4, so as to improve the gripping and positioning accuracy of the mouth tube 501 of the powder and liquid double chamber bag 5. Furthermore, the rotation angle of the two grippers 4 can be flexibly adjusted according to the push-pull distance of the guide shaft 8, facilitating precise control of the opening and closing distance and clamping force of the two grippers 4, ensuring the stability and reliability of the transfer fixture. The first direction is referred to as the X direction in the attached drawing, and the second direction is referred to as the Y direction in the attached drawing; the second direction is perpendicular to the first direction.

[0030] In some embodiments of the present invention, clamping portions 402 are respectively provided at the left ends of the two grippers 4, and snap-fit ​​grooves 403 are provided on opposite sides of the two gripping portions 402. The snap-fit ​​grooves 403 are generally arc-shaped. The lower end of the nozzle 501 of the powder-liquid dual-chamber bag 5 is clamped by the mutual cooperation of the two snap-fit ​​grooves 403. The snap-fit ​​grooves 403 increase the contact area between the clamping portions 402 and the nozzle 501, thereby improving the fit between the two grippers 4 and the nozzle 501 and effectively preventing the nozzle 501 from slipping off during the transfer process. On the other hand, it can disperse the clamping force of the two grippers 4 on the nozzle 501, preventing the nozzle 501 from deforming or breaking due to excessive local pressure.

[0031] Preferably, the shape and size of the snap-fit ​​groove 403 are designed according to the shape and size of the tube 501. The two snap-fit ​​grooves 403 are used for the precise clamping and positioning of the lower end of the tube 501 of the powder-liquid double chamber bag 5, which can further ensure the consistency of the posture of the powder-liquid double chamber bag 5 in subsequent processes such as transfer. With the adjustable opening and closing distance and clamping force of the two grippers 4, it can be adapted to the tubes 501 of different specifications of powder-liquid double chamber bags 5, effectively improving the versatility and adaptability of the overall magnetic levitation transfer fixture, so as to meet the stringent requirements of magnetic levitation tooling for high-precision operation.

[0032] To further address the issues of poor compatibility and easy damage to the nozzle 501 caused by the snap-fit ​​groove 403, a removable silicone anti-slip pad layer (not shown in the figure) is added to the inner wall of the snap-fit ​​groove 403. Preferably, the anti-slip pad is made of rubber, and annular patterns matching the outer wall of the nozzle 501 of the powder-liquid dual-chamber bag 5 are provided on the surface of the anti-slip pad layer. This increases the gripping friction of the gripper 4 on the nozzle 501 to prevent the nozzle 501 from slipping off. At the same time, it allows the gripper 4 to make flexible contact with the nozzle 501 to further buffer the gripping force and avoid the deformation of the nozzle 501 caused by rigid contact between the gripper 4 and the nozzle 501. Moreover, the anti-slip pad layer can be removed and replaced to adapt to nozzles 501 of different materials and specifications, effectively improving the versatility and adaptability of the overall magnetic levitation transfer fixture.

[0033] In some embodiments of the present invention, a limiting plate 6 is provided on the end face of the first end of the mounting plate 2, and a limiting groove 601 is provided on the upper surface of the limiting plate 6. The limiting groove 601 is used to clamp the upper end of the interface tube 501. The shape and size of the limiting groove 601 are designed according to the shape and size of the interface tube 501. Before the clamping grooves 403 of the two clamping parts 402 contact the lower end of the interface tube 501 of the powder-liquid dual-chamber bag 5, the limiting groove 601 pre-clamps the upper end of the interface tube 501. That is, the contact between the limiting groove 601 and the upper end of the interface tube 501 of the powder-liquid dual-chamber bag 5 is before the contact between the two clamping grooves 403 and the lower end of the interface tube 501 of the powder-liquid dual-chamber bag 5. This achieves alignment before clamping, thereby correcting problems such as offset and skew of the interface tube 501 in the clamping state and improving the alignment efficiency and positioning accuracy of the two grippers 4 to the lower end of the interface tube 501.

[0034] In some embodiments, multiple pressure sensors (not shown in the figure) are provided in the limiting groove 601 of the limiting plate 6, and the multiple pressure sensors are controlled and linked with the guide shaft 8. When the upper end of the nozzle 501 of the powder-liquid dual-chamber bag 5 is inserted into the limiting groove 601, the multiple pressure sensors can capture the contact pressure distribution data with the outer wall of the nozzle 501 in real time. If uneven pressure distribution is detected, it is determined that the nozzle 501 has a displacement or skew problem. At this time, the guide shaft 8 is controlled to move in the opposite direction in the first direction to fine-tune the stroke, so as to drive the two grippers 4 to rotate slightly to straighten the nozzle 501 until the pressure distribution fed by the multiple pressure sensors is uniform. Then, the guide shaft 8 is controlled to move in the opposite direction in the first direction by a preset distance to drive the grippers 4 to perform the clamping action, thereby realizing the closed-loop control process of pre-positioning, posture calibration and precise clamping. Meanwhile, the inner diameter of the limiting groove 601 is larger than the outer diameter of the upper end of the tube 501. When the tube 501 is straightened to the standard posture, the side wall of the limiting groove 601 is in a non-contact state with the outer wall of the tube 501. This will not interfere with the subsequent precise fitting of the snap-fit ​​groove 403 and the lower end of the tube 501, and will also prevent the limiting groove 601 from exerting additional pressure on the calibrated tube 501. This effectively avoids positioning deviations caused by structural interference, improves the alignment efficiency and clamping positioning accuracy of the two grippers 4 on the lower end of the tube 501, and thus ensures the posture stability of the powder-liquid dual-chamber bag 5 during the transfer process.

[0035] In some embodiments of the present invention, an adjusting rod 7 is provided at the left end of the gripper 4. When the gripper 4 grips the mouth tube 501 of the powder-liquid dual-chamber bag 5, one end of the adjusting rod 7 abuts against the side of the limiting plate 6. By adjusting the position of the adjusting rod 7 relative to the gripper 4, the minimum opening and closing distance of the left ends of the two grippers 4 can be precisely controlled to achieve flexible adjustment of the clamping force. This effectively avoids deformation and damage to the mouth tube 501 caused by excessive clamping force of the two grippers 4, ensuring the structural integrity of the powder-liquid dual-chamber bag 5. At the same time, it can prevent the mouth tube 501 from slipping or shifting during the transfer process due to insufficient clamping force of the two grippers 4, effectively ensuring the stability and reliability of the magnetic levitation transfer fixture.

[0036] like Figure 4 and Figure 5As shown, in some embodiments of the present invention, the gripper 4 is provided with an assembly hole 404. Optionally, the rotating component 3 is a pin, and a threaded hole is provided on the mounting plate 2. The rotating component 3 passes through the assembly hole 404 and is threadedly connected to the threaded hole to lock the gripper 4 on the mounting plate 2. A resin bushing 10 is sleeved on the outer circumferential side of the rotating component 3. The outer circumferential side of the resin bushing 10 fits against the hole wall of the assembly hole 404. The resin bushing 10 effectively separates the rotating component 3 and the gripper 4. Taking advantage of the excellent self-lubricating properties of the resin material, the rotational friction resistance between the rotating component 3 and the gripper 4 can be reduced, ensuring the smoothness of the gripper 4 when rotating relative to the rotation axis of the rotating component 3, ensuring that the two grippers 4 complete the gripping and releasing actions synchronously, and further ensuring the reliability of the magnetic levitation transfer fixture.

[0037] In addition, the resin bushing 10 can effectively buffer the contact wear between the rotating part 3 and the gripper 4, reduce the particle debris generated by the direct friction between the rotating part 3 and the gripper 4, thereby avoiding the pollution of the clean operating environment of the magnetic levitation fixture by friction particles, and at the same time, it can extend the service life of the rotating part 3 and the gripper 4, effectively reducing the maintenance cost of the magnetic levitation transfer fixture.

[0038] In some embodiments of the present invention, a shim 11 is provided on the top surface of the mounting plate 2. The top surface of the shim 11 is in contact with the bottom surface of the gripper 4. The thickness adjustment function of the shim 11 is used to precisely control the tightening force of the rotating component 3, avoiding jamming of the gripper 4 due to excessive tightening of the rotating component 3, and also preventing wobbling of the gripper 4 when rotating due to excessive loose tightening of the rotating component 3. This ensures the smoothness and stability of the gripper 4 when rotating around the rotation axis of the rotating component 3. At the same time, the shim 11 can disperse the contact pressure between the gripper 4 and the mounting plate 2, reduce wear and tear between them, and prevent friction particles from being generated by direct contact friction between the gripper 4 and the mounting plate 2, further maintaining the clean operating environment required for the magnetic levitation tooling.

[0039] In some embodiments of the present invention, a mounting hole 202 is provided on the fixing part 201, and a shaft support 12 is provided inside the mounting hole 202. The shaft support 12 is sleeved on the outer peripheral side of the guide shaft 8 and is slidably connected to the guide shaft 8. The shaft support 12 provides dual radial and axial limiting for the guide shaft 8, which can constrain the guide shaft 8 to always make a smooth linear movement along a preset first direction, avoid the guide shaft 8 from deviating during the push-pull process, ensure that the linear movement of the guide shaft 8 is accurately transmitted to the push shaft 9, and thus ensure that the push shaft 9 slides stably in the cross-shaped groove 401 of the two grippers 4, realize precise control of the rotation angle of the grippers 4, improve the motion accuracy of the synchronous reverse opening and closing of the two grippers 4, and improve the clamping and positioning effect of the overall magnetic levitation transfer fixture on the mouth tube 501. In addition, the sliding cooperation between the shaft support 12 and the guide shaft 8 can prevent direct friction between the guide shaft 8 and the fixing part 201, reduce the amount of friction particles generated, and effectively extend the service life of the magnetic levitation transfer fixture.

[0040] like Figure 6 As shown, in addition to the magnetic levitation transfer clamp described above, the present invention also provides a bag sorting machine including the magnetic levitation transfer clamp disclosed in the above embodiments, and further includes a first pusher 15 and a second pusher 16. The first pusher 15 can push the guide shaft 8 to reciprocate linearly along a first direction, so as to drive the two grippers 4 to reciprocate synchronously in opposite directions around the rotation axis of the rotating member 3, thereby realizing the gripping and releasing of the powder and liquid double chamber bag 5 opening tube 501. Meanwhile, the telescopic end of the second pusher 16 is equipped with a positioning plate 17. When the magnetic levitation transfer fixture is in the upper or lower bag position, before the telescopic end of the first pusher 15 approaches and abuts against the guide shaft 8, the positioning plate 17 of the telescopic end of the second pusher 16 can approach and abut against the mounting plate 2. This allows the second pusher 16 to exert opposite forces on the mounting plate 2 to the first pusher 15 when the first pusher 15 is pressing against the guide shaft 8, preventing the first pusher 15 from pushing the entire magnetic levitation transfer fixture and causing it to shake. The key to this design is that it can provide stable support and positioning for the magnetic levitation transfer fixture in the upper or lower bag position, avoiding shaking or displacement of the magnetic levitation transfer fixture during position switching and clamping operations, and ensuring the accuracy and stability of the clamping, transfer, and release actions of the powder-liquid dual-chamber bag 5. On the other hand, it will not cause impact damage to the magnetic levitation actuator 1, effectively and significantly extending the service life of the magnetic levitation fixture. The structure of other parts of this bag sorting machine can be found in existing technology and will not be described in detail here.

[0041] In some embodiments of the present invention, a baffle 13 is provided at the right end of the guide shaft 8. The baffle 13 is integrally formed at the right end of the guide shaft 8. An elastic element 14 is provided on the side of the mounting plate 2 facing away from the gripper 4. Preferably, the elastic element 14 is a support spring. The right end of the elastic element 14 is connected to the baffle 13. Utilizing the extension and rebound characteristics of the elastic element 14, it can provide flexible buffering and reset assistance for the reciprocating linear motion of the guide shaft 8, avoiding the impact problem caused by rigid collision during the push-pull process of the guide shaft 8, and ensuring the smoothness of the opening and closing action of the gripper 4 driven by the guide shaft 8. At the same time, the elastic element 14 can assist the guide shaft 8 to quickly return to the initial position, improve the response efficiency of the opening and closing action of the gripper 4, ensure the accuracy of clamping and releasing the powder-liquid dual-chamber bag 5 opening tube 501, and improve the operational reliability of the magnetic levitation transfer fixture. On the other hand, the buffering effect of the elastic element 14 can weaken the vibration generated when the guide shaft 8 moves, reduce the amount of friction particles generated between the guide shaft 8 and the shaft support 12, so as to maintain the clean operating environment required by the magnetic levitation fixture.

[0042] In some embodiments, laser position sensors (not shown in the figure) are installed at both the upper bag station and the lower bag station of the bag sorting machine. The laser position sensors are linked with the first pusher 15 and the second pusher 16 respectively. When the magnetic levitation transfer fixture moves to the upper bag station or the lower bag station, the laser position sensor can accurately identify the position of the transfer fixture and trigger a signal. The first pusher 15 automatically pushes the guide shaft 8 to complete the opening and closing clamping action, and the second pusher 16 synchronously drives the positioning plate 17 to abut against the mounting plate 2 to achieve positioning. No manual intervention or additional electronic control programming is required, which effectively improves the working efficiency of the bag sorting machine and reduces labor costs.

[0043] The working principle of this invention is as follows: When the magnetic levitation transfer fixture is at the upper bag station or the lower bag station, when the control drive first pusher pushes the guide shaft 8 to move forward a preset distance in the first direction, the baffle 13 at the right end of the guide shaft 8 cooperates with the elastic member 14. The guide shaft 8 drives the push shaft 9 to slide synchronously relative to the two strip grooves 401, driving the two grippers 4 to move synchronously in opposite directions with the rotation axis of the rotating member 3 as the center. The left ends of the two grippers 4 move away from each other. At this time, the mouth tube 501 of the powder-liquid double chamber bag 5 can be taken out and placed into the clamping position between the two grippers 4. When the control drive first pusher returns to the initial position and no longer contacts the guide shaft 8, under the elastic support of the elastic member 14, the guide shaft 8 moves in the opposite direction in the first direction until the snap-fit ​​groove 403 of the clamping part 402 on the two grippers 4 fits against the lower end of the mouth tube 501 to achieve stable clamping.

[0044] In summary, by driving the magnetic levitation mover 1 above the external magnetic levitation stator, the transfer fixture is used to switch workstations and transfer the powder-liquid dual-chamber bag 5. This reduces the generation of friction particles and prevents friction particles from being mixed into the powder inside the bag during the transfer process of the powder-liquid dual-chamber bag 5. This effectively prevents the powder from being contaminated by friction particles and ensures the purity and quality stability of the powder after filling.

[0045] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0046] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A magnetic levitation transfer fixture, characterized in that, include: An external magnetic levitation stator and a magnetic levitation mover (1) disposed above the magnetic levitation stator, wherein a transfer clamp is disposed on the magnetic levitation mover (1); The transfer clamp includes: a mounting plate (2) disposed on the top surface of the magnetic levitation mover (1), and two rotating parts (3) disposed on the mounting plate (2). The two rotating parts (3) are rotatably connected to the grippers (4). The two grippers (4) can be synchronously driven to reciprocate around the rotation axis of the rotating parts (3) to grip or release the mouth tube (501) of the powder liquid double chamber bag (5).

2. The magnetic levitation transfer fixture according to claim 1, characterized in that, The second end of the mounting plate (2) is provided with a fixing part (201), and a guide shaft (8) is slidably provided on the side of the fixing part (201). The first end of the guide shaft (8) is provided with a push shaft (9), and the first ends of the two grippers (4) are respectively provided with strip grooves (401). The two strip grooves (401) are set at an angle, and the push shaft (9) is slidably connected to the two strip grooves (401).

3. A magnetic levitation transfer fixture according to claim 2, characterized in that, The second ends of the two grippers (4) are respectively provided with gripping parts (402), and the two gripping parts (402) are provided with snap-fit ​​grooves (403) on opposite sides. The two snap-fit ​​grooves (403) cooperate to clamp the lower end of the mouth tube (501).

4. A magnetic levitation transfer fixture according to claim 1, characterized in that, A limiting plate (6) is provided on the end face of the first end of the mounting plate (2), and a limiting groove (601) is provided on the upper part of the limiting plate (6). The limiting groove (601) is used to snap the upper end of the inlet tube (501).

5. A magnetic levitation transfer fixture according to claim 4, characterized in that, An adjusting rod (7) is provided at the second end of the gripper (4). When the gripper (4) grips the mouth tube (501) of the powder liquid double chamber bag (5), one end of the adjusting rod (7) abuts against the side of the limiting plate (6).

6. A magnetic levitation transfer fixture according to any one of claims 1-5, characterized in that, The gripper (4) is provided with an assembly hole (404), and a resin bushing (10) is sleeved on the outer circumferential side of the rotating part (3), with the outer circumferential side of the resin bushing (10) fitting against the wall of the assembly hole (404).

7. A magnetic levitation transfer fixture according to claim 6, characterized in that, A gasket (11) is provided on the top surface of the mounting plate (2), and the top surface of the gasket (11) is attached to the bottom surface of the gripper (4).

8. A magnetic levitation transfer fixture according to claim 2, characterized in that, The fixing part (201) is provided with a mounting hole (202), and a shaft support (12) is provided in the mounting hole (202). The shaft support (12) is sleeved on the outer peripheral side of the guide shaft (8).

9. A bag sorting machine, characterized in that, The magnetic levitation transfer fixture according to any one of claims 1-8 further includes a first pusher (15) and a second pusher (16). The first pusher (15) is used to push the guide shaft (8) to reciprocate so as to drive the gripper (4) to reciprocate around the rotation axis of the rotating member (3). The telescopic end of the second pusher (16) is provided with a positioning plate (17). When the magnetic levitation transfer fixture is located at the upper bag station or the lower bag station, the telescopic end of the first pusher (15) is used to abut against the guide shaft (8), and the positioning plate (17) is used to abut against the mounting plate (2).

10. A bag sorting machine according to claim 9, characterized in that, A baffle (13) is provided at the second end of the guide shaft (8), and an elastic element (14) is provided on the side of the mounting plate (2) facing away from the gripper (4), with the other end of the elastic element (14) connected to the baffle (13).

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