CN218317752U - A plasma bag fixture for plasma bag-breaking machine - Google Patents

Abstract

The utility model relates to a broken bag technical field of plasma bag specifically provides a plasma bag fixture for broken bag machine of plasma bag, and it is great to aim at solving motor drive jack catch mechanism plasma bag fixture's volume, weight and inertia, removes the lower problem of precision of in-process position. Mesh for this reason, the utility model discloses a plasma bag fixture for plasma bag-breaking machine includes the installation component, with claw mechanism and the actuating mechanism that the installation component is connected, actuating mechanism includes electromagnetic drive unit and reset unit, electromagnetic drive unit and reset unit cooperation so that drive claw mechanism opens and shuts. Through such setting, reduced plasma bag fixture's volume, weight and inertia to the precision of plasma bag fixture position in the removal process has been improved.

Description

A plasma bag fixture for plasma bag-breaking machine

Technical Field

The utility model relates to a broken bag technical field of plasma bag specifically provides a plasma bag fixture for broken bag machine of plasma bag.

Background

The blood product is mainly a bioactive preparation prepared from blood plasma of healthy people or specific immune human blood plasma by separation and purification technology, such as human serum albumin, human immunoglobulin, small product, etc., and is used for diagnosis, treatment or passive immunoprophylaxis. Plasma collected from healthy persons is contained in a standard plasma bag and frozen into an ice body for storage, and the plasma bag which is cleaned and sterilized before blood products are produced needs to be broken so as to take out the ice body plasma and put the ice body plasma into a melting slurry tank for melting.

The existing plasma bag breaking machine generally uses a conveying roller mechanism to convey a plasma bag, and in the process, the plasma bag is scratched by a bag breaking knife positioned below the conveying roller mechanism, so that plasma in the plasma bag is separated from the plasma bag in a subsequent process. However, in the process of transporting the plasma bag by the transport roller, the plasma bag is easily turned over so that the front side of the plasma bag to which the label paper is attached faces downward, and at least a part of the label paper is peeled off from the plasma bag while the plasma bag is cut by the bag-breaking knife, thereby contaminating plasma by dropping into the plasma.

In view of this, the inventors of the present invention thought that the movement of the plasma bag may be achieved by the gripper mechanism gripping the plasma bag. However, the jaw mechanism is typically driven by an electric motor. The clamping jaw mechanism is driven by the motor, so that the size, the weight and the inertia of the plasma bag clamping mechanism are large, and the position precision in the moving process is low.

Therefore, there is a need in the art for a new solution to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, solve motor drive jack catch mechanism blood plasma bag fixture's volume, weight and inertia promptly great, remove the lower problem of precision of in-process position. The utility model provides a plasma bag fixture for plasma bag-breaking machine, plasma bag fixture include the installation component, with jaw mechanism and actuating mechanism that the installation component is connected, actuating mechanism includes electromagnetic drive unit and the unit that resets, electromagnetic drive unit with the unit cooperation that resets is so that the drive jaw mechanism opens and shuts.

In an optimal technical scheme of the plasma bag clamping mechanism, the jaw mechanism comprises two symmetrical swing rods, two connecting rods and a sliding rod, the first ends of the two swing rods are pivotally connected to the mounting member, the first ends of the two connecting rods are respectively pivotally connected to one side, opposite to the two swing rods, of the two swing rods, the second ends of the two connecting rods are both pivotally connected to one end of the sliding rod, the sliding rod is slidably connected with the mounting member, and the driving mechanism is arranged between the mounting member and the sliding rod so as to drive the two swing rods to swing oppositely or back to back in a manner of driving the sliding rod to move along the axis of the sliding rod.

In a preferred embodiment of the above plasma bag holding mechanism, the reset unit includes an elastic member connecting the mounting member and the slide bar.

In the preferable technical scheme of the plasma bag clamping mechanism, the elastic member is a spring with two ends respectively connected with the mounting member and the sliding rod.

In the preferable technical scheme of the plasma bag clamping mechanism, the spring is sleeved on the sliding rod.

In the preferable technical scheme of the plasma bag clamping mechanism, the number of the springs is multiple, and the springs are uniformly distributed around the sliding rod.

In a preferred embodiment of the plasma bag holding mechanism, the electromagnetic driving unit includes a first electromagnet and a ferromagnetic member; the first electromagnet and the ferromagnetic body are respectively disposed on the mounting member and the slide bar, or the first electromagnet and the ferromagnetic body are respectively disposed on the slide bar and the mounting member.

In the preferable technical scheme of the above plasma bag holding mechanism, the ferromagnetic body is a permanent magnet, and the plasma bag holding mechanism is set to: when the claw mechanism is in a clamping state, the elastic component is in an extending state, so that the repulsion force between the first electromagnet and the permanent magnet pushes the sliding rod to move towards a direction away from the mounting component.

In a preferred technical solution of the above plasma bag holding mechanism, the driving mechanism includes a first electromagnet, a second electromagnet, and a limiting member, the first electromagnet and the second electromagnet are respectively disposed on the mounting member and the slide bar, the first electromagnet and the second electromagnet form the electromagnetic driving unit, and the first electromagnet and the second electromagnet form the reset unit, and the limiting member is configured to limit a maximum distance that the slide bar is away from the mounting member.

In a preferred technical scheme of the plasma bag clamping mechanism, the limiting component is a flexible rope which is connected with the mounting component and the sliding rod.

Under the condition of adopting above-mentioned technical scheme, plasma bag fixture includes the installation component, with jack catch mechanism and the actuating mechanism that the installation component is connected, actuating mechanism includes electromagnetic drive unit and reset unit, electromagnetic drive unit and reset unit cooperation so that drive jack catch mechanism opens and shuts. Through such setting, reduced plasma bag fixture's volume, weight and inertia to the precision of plasma bag fixture position in the removal process has been improved.

Drawings

The preferred embodiments of the present invention will be described with reference to the accompanying drawings and a hammering type plasma bag breaking machine, wherein:

fig. 1 is a schematic structural view of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the position relationship among the bag cutting device, the hammering type separating device, the empty bag transferring device and the empty bag draining device in the hammering type plasma bag breaking machine according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bag cutting device of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 4 is a structural diagram of a hammering type separating device in a hammering type plasma bag breaking machine according to an embodiment of the invention;

fig. 5 is a structural diagram of a first fixing mechanism of a hammering type separating device in a hammering type plasma bag breaking machine according to an embodiment of the invention;

FIG. 6 is an enlarged view of detail A of FIG. 5;

fig. 7 is a schematic structural view of a second fixing mechanism of the hammering type separating device in the hammering type plasma bag breaking machine according to the embodiment of the invention;

fig. 8 is a schematic structural diagram of a hammering mechanism of a hammering type separating device in a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a hollow bag transfer device of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a hollow bag draining device of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

FIG. 11 is an enlarged view of detail B of FIG. 10;

fig. 12 is a schematic structural diagram of a bag cutting device in a hammering type plasma bag breaking machine according to another embodiment of the present invention.

List of reference numerals:

1. a housing; 11. a plasma bag positioning tool; 12. a plasma tank; 13. a packing auger; 14. a bag receiving platform; 2. a bag cutting device; 21. a first clamping mechanism; 211. a mounting frame a; 212. a connecting arm; 213. a connecting frame a; 214. a jaw mechanism a; 215. an arm connecting rod; 216. a connecting rod a; 217. a rocker; 218. a connecting rod; 219. a servo motor a; 210. a flexible cord; 22. a second clamping mechanism; 221. a mounting frame b; 222. a slide block a; 223. a connecting frame b; 224. a jaw mechanism b; 23. a first cutter; 24. a second cutter; 3. a hammer separator; 31. a first fixing mechanism; 311. a mounting member b; 312. a jaw mechanism c; 3121. a first swing link; 3122. a connecting rod b; 3123. a slide bar a; 313. a shearing mechanism; 3131. a second swing link; 31311. a shearing blade; 3132. a connecting rod d; 3133. a sliding rod b; 314. a pivotal shaft; 315. a servo motor b; 32. a second fixing mechanism; 321. a mounting member c; 322. a jaw mechanism d; 33. a hammering mechanism; 331. a connecting rod f; 332. a hammer head; 333. quickly mounting a clamp; 4. an empty bag transfer device; 41. a sliding mechanism; 411. a mounting frame c; 412. a slide block b; 413. a connecting frame c; 414. a slide rail; 415. a slide block c; 42. a rotating mechanism; 421. a connecting frame d; 422. a cylinder body; 423. a telescopic rod; 424. a crank; 5. an empty bag draining device; 51. a mounting frame d; 52. a support; 53. a stepping motor; 54. hanging a needle; 55. a bag withdrawing mechanism; 551. a bag withdrawing plate; 552. an electromagnet; 553. a magnet; 554. a spring; 6. a control unit; 7. a plasma bag positioning tool of a cleaning machine; 8. a plasma bag.

Detailed Description

First, it should be understood by those skilled in the art that the embodiments described below are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The hammering type plasma bag breaking machine will be described in detail with reference to fig. 1 to 12. Fig. 1 is a schematic structural view of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the position relationship among the bag cutting device, the hammering type separating device, the empty bag transferring device and the empty bag draining device in the hammering type plasma bag breaking machine according to the embodiment of the present invention; fig. 3 is a schematic structural diagram of a bag cutting device of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 4 is a structural diagram of a hammering type separating device in a hammering type plasma bag breaking machine according to an embodiment of the invention; fig. 5 is a structural diagram of a first fixing mechanism of a hammering type separating device in a hammering type plasma bag breaking machine according to an embodiment of the invention; FIG. 6 is an enlarged view of detail A of FIG. 5;

fig. 7 is a schematic structural view of a second fixing mechanism of the hammering type separating device in the hammering type plasma bag breaking machine according to the embodiment of the invention; fig. 8 is a schematic structural diagram of a hammering mechanism of a hammering type separating device in a hammering type plasma bag breaking machine according to an embodiment of the present invention; fig. 9 is a schematic structural view of a hollow bag transfer device of a hammering type plasma bag breaking machine according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a hollow bag draining device of a hammering type plasma bag breaking machine according to an embodiment of the present invention; FIG. 11 is an enlarged view of detail B of FIG. 10; fig. 12 is a schematic structural view of a bag cutting device of a hammering type plasma bag breaking machine according to another embodiment of the present invention.

As shown in fig. 1, the plasma bag breaking machine includes a housing 1 as a frame, a bag cutting device 2 provided in the housing 1, a hammer type separating device 3, an empty bag transfer device 4, and an empty bag draining device 5. The left side of the shell 1 is provided with a plasma bag positioning tool 7 of a cleaning machine, the inside of the shell 1 is provided with a plasma bag positioning tool 11 and a plasma tank 12 which is positioned below the bag scratching device 2, the hammering type separating device 3, the empty bag transfer device 4 and the empty bag draining device 5, the inside of the plasma tank 12 is provided with an auger 13, and the auger 13 is driven by a motor (not shown in the figure), so that plasma blocks in the plasma tank 12 are crushed and output to a plasma melting tank (not shown in the figure) from a discharge pipe. A bag receiving platform 14 is arranged at the right side of the shell 1 corresponding to the empty bag draining device 5 and is used for receiving the empty plasma bag 8 taken down from the empty bag draining device 5. The shell 1 is also provided with a control part 6, and the control part 6 is used for controlling the operations of the bag cutting device 2, the hammering type separating device 3, the empty bag transferring device 4, the empty bag draining device 5 and the packing auger 13, and can interact with an operator so as to input an operation instruction and output an operation state.

As shown in fig. 2 and 3, the bag breaking device 2 includes a cutter for moving the plasma bag 8 to the hammer type separating device 3, and a holding mechanism as a plasma bag transfer device, the cutter being provided on a moving path of the plasma bag 8 so that the lower surface of the plasma bag 8 is opened by the cutter during the movement of the plasma bag 8. Specifically, the gripper mechanism includes a first gripper mechanism 21 and a second gripper mechanism 22, the movement path includes a first path and a second path, and the tool includes a first tool 23 and a second tool 24 provided on the first path and the second path, respectively. The first clamping mechanism 21 is used for moving the plasma bag 8 from the plasma bag positioning tool 7 of the cleaning machine to the plasma bag positioning tool 11, and the second clamping mechanism 22 is used for moving the plasma bag 8 from the plasma bag positioning tool 11 to the hammering type separating device 3.

As shown in fig. 3, the first gripper mechanism 21 includes a multi-joint robot arm whose front end is connected to the housing 1, a link frame a213 pivotally connected to the tip end of the multi-joint robot arm, and eight gripper mechanisms a214 provided on the link frame a 213. The multi-joint mechanical arm comprises two mounting frames a211 fixed to the housing 1, two connecting arms 212 in sequence and two connecting arm driving parts (such as a servo motor a 219) respectively driving the two connecting arms 212 to rotate, the connecting frame a213 is in pivot connection with the tail end of the second connecting arm 212, two groups of connecting rods are respectively arranged on two sides of the multi-joint mechanical arm, each group of connecting rods comprises two connecting arm rods 215 and a connecting rod a216, one ends of the two connecting arm rods 215 are respectively in pivot connection with rotating shafts at two ends of the connecting arm 212, two ends of the connecting rod a216 are respectively in pivot connection with the other ends of the two connecting arm rods 215, and therefore a parallelogram mechanism is formed by the two corresponding connecting arms 212. The jaw mechanism a214 comprises two symmetrical swing rods, two connecting rods and a sliding rod, first ends of the two swing rods are pivotally connected to the connecting frame a213, first ends of the two connecting rods are respectively pivotally connected to opposite sides of the two swing rods, second ends of the two connecting rods are both pivotally connected with the first ends of the sliding rod, the sliding rod is slidably connected with the connecting frame a213, the second end of the sliding rod is connected with one end of the flexible rope 210, the second end of the flexible rope 210 penetrates through a through hole in a rotating shaft of the second connecting arm 212 and the connecting frame a213 and is connected to the first connecting arm 212, an elastic member is arranged between the connecting frame a213 and the sliding rod, the first elastic member is a spring sleeved on the sliding rod, and two ends of the spring are respectively connected with the connecting frame a213 and the sliding rod. In a state where the second link arm 212 pivots relative to the first link arm 212 to form a set angle (e.g., 35 °, 40 ° or other suitable angle), the flexible rope 210 is tensioned, the sliding rod is pulled by the flexible rope 210 relative to the link frame a213 by a certain distance, the elastic member is compressed by a corresponding distance, and the two swing rods swing towards each other by a corresponding angle to form a clamping state. It should be noted that the elastic member disposed between the connecting frame a213 and the sliding rod may include a plurality of springs, the plurality of springs are uniformly distributed around the sliding rod, two ends of each spring are respectively connected to the connecting frame a213 and the sliding rod, or the two ends of each spring are respectively connected to the connecting frame a213 and the sliding rod.

As shown in fig. 3, a first rotating shaft and a second rotating shaft which are parallel to each other are arranged between the two mounting frames a211, a proximal end of the first connecting arm 212 (i.e., one end close to the mounting frames a211 in the direction of the transmission chain) is pivotally connected to the first rotating shaft on the mounting frames a211, both ends of the first connecting rod a216 are respectively pivotally connected to the second rotating shaft on the mounting frames a211 and the other end of the connecting arm rod 215 connected to the distal end of the first connecting arm 212, the connecting arm rod 215 connected to the proximal end of the first connecting arm 212 is a virtual connecting rod and the position of the connecting arm rod and the mounting frames a211 is kept unchanged, and the connecting arm rod 215 pivotally connected to the same rotating shaft is fixedly connected, so that parallelogram mechanisms adjacent to each other are interlocked to keep the posture of the connecting frame a213 unchanged during the action of the multi-joint robot arm. It should be noted that the link arm 215 pivotally connected to the same pivot shaft may be integrally formed.

Through such setting, can make plasma bag 8 keep stable gesture in first fixture 21 centre gripping plasma bag 8 removal in-process, guarantee the accuracy of plasma bag 8 lower surface incision formation position. It is understood that the link arm 215 connected to the proximal end of the first link arm 212 may also be a solid link arm having two ends pivotally connected to the first rotating shaft and the second rotating shaft, respectively; in addition, the two sets of links may be provided only on one side of the articulated robot arm, but such stability is not as good as the stability of the two sets of links provided on both sides of the articulated robot arm.

As shown in fig. 3, two servo motors a219 are fixed to the two mounting brackets a211, respectively. An output shaft of one servo motor a219 is in driving connection with the proximal end of the first connecting arm 212 through a coupler, and the other servo motor a219 is in driving connection with the second connecting arm 212 through a connecting rod assembly. The linkage assembly comprises a rocker 217 and a connecting rod 218, the first end of the rocker 217 is pivotally connected to the first pivot, the output shaft of another servo motor a219 is drivingly connected to the first end of the rocker 217, the first end of the connecting rod 218 is pivotally connected to the second end of the rocker 217, the second end of the connecting rod 218 is pivotally connected to the second connecting arm 212, and the length between the point where the second end of the connecting rod 218 is connected to the second connecting arm 212 and the proximal end of the second connecting arm 212 is equal to the length of the rocker 217.

Through such an arrangement, the pivoting angle of each connecting arm 212 can be more conveniently controlled, and the action of the first clamping mechanism 21 can be conveniently controlled. Two servo motor a219 are fixed to two mounting brackets a211 respectively, can alleviate the inertia of multi-joint arm at the removal in-process, have further improved the flexibility ratio and the precision of first fixture 21 action. It should be noted that, the length between the position where the second end of the connecting rod 218 is connected to the second connecting arm 212 and the proximal end of the second connecting arm 212 may also be unequal to the length of the rocker 217, so that the relationship between the rotation angle of the connecting arm 212 and the corresponding angle of the rocker 217 needs to be obtained through experiments, and then the rocker 217 is rotated by a set angle through the servo motor a219 so that the connecting arm 212 rotates by the corresponding angle.

As shown in fig. 3, the second clamping mechanism 22 includes a mounting bracket b221 fixed to the housing 1, a slider a222 slidably connected to the mounting bracket b221, a connecting bracket b223 fixedly connected to the slider a222, eight claw mechanisms b224 arranged on the connecting bracket b223, and a driving mechanism for driving the claw mechanisms b224 to act. The jaw mechanism b224 comprises two symmetrical swing rods, two connecting rods and a sliding rod, wherein first ends of the two swing rods are pivotally connected to the connecting frame b223, first ends of the two connecting rods are respectively pivotally connected to one side of the two swing rods, second ends of the two connecting rods are both pivotally connected with first ends of the sliding rod, and the sliding rod is slidably connected with the connecting frame b 223. The driving mechanism comprises an electromagnetic driving unit and a reset unit, the electromagnetic driving unit comprises an electromagnet and a magnet which are respectively arranged on the connecting frame b223 and the sliding rod, the reset unit comprises an elastic component which is connected with the connecting frame b223 and the sliding rod, the elastic component is a spring of which two ends are respectively connected with the connecting frame b223 and the sliding rod, and the spring is sleeved on the sliding rod. In the de-energized state of the electromagnet, the spring is in an extended state and the jaw mechanism b224 is in an open state. When the electromagnet is electrified, repulsion force is generated between the electromagnet and the magnet, the magnet moves along the axis of the sliding rod towards the direction away from the electromagnet, the sliding rod moves along with the magnet, so that the two swing rods swing oppositely, the jaw mechanism b224 is in a clamping state, and the spring is further stretched. When the electromagnet is powered off, the sliding rod slides along the axis in the reverse direction under the action of the tensile force of the spring, so that the two swing rods swing back to back, finally the spring returns to the initial state, and the jaw mechanism b224 is in an open state. The first cutter 23 is arranged on the left side of the plasma bag positioning tool 11, and the second cutter 24 is arranged on the rear side of the plasma bag positioning tool 11. The first tool 23 comprises a first tool holder and eight first blades. The second tool 24 comprises a second tool holder and three second inserts.

It should be noted that the number of the connecting arms in the multi-joint mechanical arm may also be three, four or more, and the number of the corresponding groups of connecting rods and connecting rod assemblies is correspondingly set. In addition, it is only a specific arrangement that each of the first clamping mechanism 21 and the second clamping mechanism 22 includes eight jaw mechanisms, and the number of the jaw mechanisms in each of the first clamping mechanism 21 and the second clamping mechanism 22 may be one, three, six, ten or more. In addition, the elastic component arranged between the connecting frame b223 and the sliding rod can comprise a plurality of springs which are uniformly distributed around the sliding rod, and two ends of each spring are respectively connected with the connecting frame b223 and the sliding rod or can be rubber blocks of which two ends are respectively connected with the connecting frame b223 and the sliding rod. Further, the electromagnetic driving unit for driving the latch mechanism b224 may be configured to include an electromagnet and an iron block respectively provided on the connecting frame b223 and the slide bar, in which the spring is in a compressed state and the latch mechanism b224 is in a clamped state in a state where the electromagnet is de-energized. When the electromagnet is electrified, attraction force is generated between the electromagnet and the iron block, the iron block moves towards the direction close to the electromagnet along the axis of the sliding rod, the sliding rod moves along with the magnet, so that the two swing rods swing oppositely, the jaw mechanism b224 becomes an open state, and the spring is further compressed. When the electromagnet is powered off, the sliding rod slides along the axis in the opposite direction under the action of the elastic force of the spring, so that the two swing rods swing in opposite directions, finally the spring returns to the initial state, and the jaw mechanism b224 is changed into a clamping state. The driving mechanism driving the jaw mechanism b224 may also be configured to include first and second electromagnets respectively disposed on the connecting frame b223 and the slide bar, and a limiting member, the first and second electromagnets forming both the electromagnetic driving unit and the reset unit, the limiting member being a flexible cord connecting the connecting frame b223 and the slide bar, the flexible cord limiting a maximum distance that the slide bar moves in a direction away from the connecting frame b 223. The first electromagnet and the second electromagnet respectively generate driving force to drive the slide bar to move in different directions relative to the connecting frame b223 by generating attraction force and repulsion force. It should be noted that the limiting component may also be a limiting block disposed on the sliding rod.

In the process that the first clamping mechanism 21 clamps the plasma bags 8 to move from the plasma bag positioning tool 7 to the plasma bag positioning tool 11 of the cleaning machine, each first blade forms a first notch on the lower surface of one plasma bag 8 along the length direction of the plasma bag 8. In the process that the second clamping mechanism 22 clamps the plasma bag 8 to move from the plasma bag positioning tool 11 to the hammer separation device 3, three second blades form three second cuts in the width direction of the plasma bag 8 on the lower surface of each plasma bag 8. One first incision and three second incisions in the lower surface of each plasma bag 8 form a "feng" shaped opening. The direction of the first incision is vertical to that of the second incision, so that the size of the opening can be increased, and the plasma block can be conveniently separated.

As shown in fig. 4 to 8, the hammer type separating device 3 includes a fixing mechanism for holding both ends of the plasma bag 8 having an opening in the lower surface thereof so as to fix the plasma bag 8, and a hammer mechanism 33 for striking the plasma bag 8 from above the plasma bag 8 so that the plasma cake in the plasma bag 8 is pulled out from the opening. The securing mechanism comprises a first securing mechanism 31 for holding a first end of the plasma bag 8 and a second securing mechanism 32 for holding a second end of the plasma bag 8.

As shown in fig. 5 and 6, the first fixing mechanism 31 includes a mounting member b311, eight jaw mechanisms c312 disposed on the mounting member b311, and eight shearing mechanisms 313 disposed on the mounting member b311, wherein two ends of the mounting member b311 are pivotally connected to the housing 1 through pivot shafts 314, and a servo motor b315 is used for driving the mounting member b311 to rotate by a preset angle. The latch mechanism c312 includes two pairs of first swing levers 3121 engaged with each other, two pairs of connecting levers 3122, two slide bars a3123, and two driving mechanisms. The jaw mechanism c312 includes two link mechanisms respectively driven by two driving mechanisms, wherein a pair of first oscillating bars 3121, a pair of connecting bars b3122 and a sliding bar a3123 constitute one link mechanism. Specifically, first ends of two first oscillating bars 3121 are pivotally connected to the mounting member b311, first ends of two links b3122 are pivotally connected to opposite sides of the two first oscillating bars 3121, respectively, second ends of the two links b3122 are both pivotally connected to one end of a sliding bar a3123, and the sliding bar a3123 is slidably connected to the mounting member b311, thereby constituting one link mechanism. The driving mechanism comprises an electromagnetic driving unit and a resetting unit. The electromagnetic driving unit includes an electromagnet and a magnet provided on the mounting member b311 and the slide bar a3123, respectively, and the restoring unit includes an elastic member connecting the mounting member b311 and the slide bar a3123, the elastic member being a spring having both ends connected to the mounting member b311 and the slide bar 3123, respectively, and the spring being fitted over the slide bar a 3123. The drive mechanism of the jaw mechanism c312 may be adjusted in the manner as described above.

A shearing mechanism 313 is arranged between one pair of first swing rods 3121 and the other pair of first swing rods 3121 in the jaw mechanism c312, and the shearing mechanism 313 is used for shearing off the connecting pipe at the first end of the plasma bag 8. The cutting mechanism 313 includes two symmetrical second swing links 3131, two connecting rods d3132 and a sliding rod b3133, first ends of the two second swing links 3131 are pivotally connected to the mounting member b311, a first end of each connecting rod d3132 is pivotally connected to an opposite side of the second swing link 3131, the sliding rod b3133 is slidably connected to the mounting member b311, the sliding rod b3133 is pivotally connected to second ends of the two connecting rods d3132, and a second end of one of the second swing links 3131 is provided with a cutting blade 31311. An electromagnet and a magnet on the mounting member b311 and the sliding bar b3133, an elastic member is arranged between the mounting member b311 and the sliding bar b3133, the elastic member is a spring with two ends respectively connected with the mounting member b311 and the sliding bar b3133, and the spring is sleeved on the sliding bar b 3133. The two second swing bars 3131 are swung toward or away from each other by moving the sliding bar b3133 relative to the mounting member b311, thereby cutting off the adapter at the first end of the plasma bag 8. The servo motor b315 can drop the stub cut off from the first end of the plasma bag 8 to a set collection tank by driving the mounting member b311 to rotate by a preset angle so as to be collected.

It is understood that the mounting members b311 and c321 may also be fixedly connected with the housing 1.

As shown in fig. 7, the second fixing mechanism 32 includes a mounting member c321, eight click mechanisms d322 provided on the mounting member c 321. The structure of the latch mechanism d322 is the same as the latch mechanism c312 and will not be described in detail.

As shown in fig. 8, the hammering mechanism 33 includes a connecting frame b223 as a mounting member, a hammering member slidably connected to the connecting frame b223, and a driving mechanism, and the hammering member includes a link f331 and a hammer head 332 detachably connected to the link f331 by a quick-fit clamp 333. The surface layer structure of the hammer 332 is made of an elastic material (such as rubber, silicone, etc.). The driving mechanism comprises an electromagnetic driving unit and a resetting unit, the electromagnetic driving unit comprises a first electromagnet and a ferromagnetic body (such as an iron block) which are respectively arranged on the connecting frame b223 and the connecting rod f331, the resetting unit comprises a spring, two ends of the spring are respectively connected with the connecting frame b223 and the connecting rod f331, and the spring is sleeved on the connecting rod f 331. The driving mechanism of the hammering member may be adjusted in the manner as described above.

Under the state that the first fixing mechanism 31 and the second fixing mechanism 32 respectively clamp the plasma bag 8, the first electromagnet is powered on and powered off according to a set frequency, the adsorption force between the first electromagnet and the ferromagnetic body is generated and disappeared according to the same frequency, under the synergistic action of the adsorption force and the elastic force of the spring, the connecting rod f331 slides back and forth relative to the connecting frame b223, so that the hammer head 332 is driven to move up and down, the hammer head 332 hits the upper surface of the plasma bag 8, and the plasma block in the plasma bag 8 is separated from the opening on the lower surface of the plasma bag 8 and falls into the plasma tank 12.

Through being connected tup 332 and connecting rod f331 detachably, can choose the tup 332 of different specifications for use according to the plasma bag 8 of different specifications to smash the plasma clot in the plasma bag 8 and make the plasma clot deviate from the opening of plasma bag 8 lower surface more conveniently. Connect tup 332 and connecting rod f331 through fast-assembling clamp 333, made things convenient for the dismouting of tup 332 with connecting rod f331, improved the efficiency of changing tup 332, and then improved production efficiency. The surface structure of tup 332 sets to flexible material, can reduce the risk that plasma bag 8 takes place to break when tup 332 hits the plasma bag 8, avoids plasma bag 8's incomplete piece to drop and pollutes plasma.

On the basis of the above-described embodiment, it is preferable that the mounting member c321 be provided with a gripper driven by a driving portion for gripping the plasma bag 8, so as to improve the firmness of the plasma bag 8 during the striking of the plasma bag 8 by the hammer mechanism 33, reducing the risk of the plasma bag 8 falling. For example, the jaw mechanism b224 in the second gripper mechanism 22 functions as a mechanical jaw provided on the mounting member c321 driven by a driving portion. By sharing the jaw mechanism b224, the number of parts is reduced, and the manufacturing cost is reduced.

Referring to fig. 10, the empty bag draining device 5 includes a hanging needle 54 for hanging an empty plasma bag 8.

As shown in fig. 9, the empty bag transfer device 4 includes a slide mechanism 41 connected to the housing 1, a rotation mechanism 42 connected to the slide mechanism, and a second fixing mechanism 32 connected to the rotation mechanism 42. The sliding mechanism 41 includes a mounting bracket c411 fixed to the housing 1, a slider b412 slidably connected to the mounting bracket c411, a connecting bracket c413 fixedly connected to the slider b412, a sliding rail 414 disposed at a lower portion of the connecting bracket c413, and a slider c415 slidably connected to the sliding rail 414, and a sliding direction of the slider b412 relative to the mounting bracket c411 and a sliding direction of the slider c415 relative to the sliding rail 414 are both in a horizontal plane and are perpendicular to each other. The rotating mechanism 42 comprises a connecting frame d421 fixedly connected with the sliding block c415, a cylinder d422 pivotally connected with the connecting frame d421, and a crank 424 pivotally connected with an expansion link 423 of the cylinder d422, wherein the crank 424 is pivotally connected with the connecting frame d421, and the second fixing mechanism 32 is fixedly connected with the crank 424.

The second fixing mechanism 32 can hold the empty plasma bag 8 and rotate by 90 ° around its rotation axis from a horizontal posture when the connecting frame 42 is moved to the preset position so as to hook the empty plasma bag 8 to the hanging needle 534. Specifically, the telescopic rod 432 of the cylinder d431 is extended and contracted to rotate the crank 433 counterclockwise by 90 °, and then the second fixing mechanism 32 rotates counterclockwise by 90 °, so that the plasma bag 8 clamped by the second fixing mechanism 32 is hooked on the hanging needle 534 on the left side of the empty bag draining device 5. The jaw mechanism d322 on the second securing mechanism 32 releases the plasma bag 8, after which the empty bag transfer device 4 moves back to the initial position (the position shown in fig. 9).

Note that, the slide mechanism 41 may be configured to: the sliding direction of the sliding block b412 relative to the mounting rack c411 is perpendicular to the sliding direction of the sliding block c415 relative to the sliding rail 414, the sliding direction of the sliding block b412 relative to the mounting rack c411 is a horizontal direction, the sliding direction of the sliding block c415 relative to the sliding rail 414 is a vertical direction, or the sliding direction of the sliding block b412 relative to the mounting rack c411 and the sliding direction of the sliding block c415 relative to the sliding rail 414 are both located in a horizontal plane but form an included angle of 45 °; the sliding mechanism 41 may further include only a mounting bracket c411 fixed to the housing 1 and a slider b412 slidably connected to the mounting bracket c411, and the connecting bracket d421 of the rotating mechanism 42 is fixedly connected to the slider b 412. Further, the cylinder d431 may be replaced with a linear motor.

In another possible embodiment, the sliding mechanism 41 includes a first sliding member connected to the sliding mechanism, and a second sliding member connected to the first sliding member, a sliding direction of the second sliding member with respect to the first sliding member is parallel to a sliding direction of the first sliding member with respect to the frame, and the rotating mechanism is connected to the second sliding member. The rotating mechanism comprises a crank which is pivotally connected with the second sliding component and a connecting rod of which two ends are respectively pivotally connected with the first sliding component and the crank, and the second fixing mechanism 32 is connected with the crank. During the movement of the second sliding member relative to the first sliding member, the connecting rod drives the crank to rotate, which in turn drives the second fixing mechanism 32 to rotate.

As shown in fig. 10, the empty bag draining device 5 includes a mounting bracket d51 connected to the housing 1, a stepping motor 53 fixed on the mounting bracket d51, a bracket 52 fixedly connected to an output shaft of the stepping motor 53, and a hanging needle 54 provided on both sides of the bracket 52 and horizontally extending in a direction away from the bracket 52, an axis of the output shaft of the stepping motor 53 being located in a vertical plane. As shown in fig. 11, the holder 52 is provided with a bag withdrawing mechanism 55, the bag withdrawing mechanism 55 comprises a bag withdrawing plate 551 and a driving mechanism, the bag withdrawing plate 551 is provided with a through hole along the thickness direction thereof, the through hole is sleeved on the hanging needle 54, the driving mechanism comprises an electromagnetic driving unit and a resetting unit, the electromagnetic driving unit comprises an electromagnet 552 and a magnet 553 respectively arranged on the holder 52 and the bag withdrawing plate 551, the resetting unit comprises a spring 554 respectively connected with the holder 52 and the bag withdrawing plate 551 at two ends, and the spring 554 is sleeved on the hanging needle 54.

In the using process, when the plasma in the empty plasma bag 8 hooked on the hanging needle 54 on the left side of the bracket 52 (the hanging needle 54 positioned at the bag hanging station) is drained and cleaned, the stepping motor 53 works to drive the bracket 52 to rotate 180 degrees, the drained plasma bag 8 moves to the bag withdrawing station, at the moment, the electromagnet 552 is electrified, repulsion force is generated between the electromagnet 552 and the magnet 553, the bag withdrawing plate 551 is driven to move rightwards along the axis of the hanging needle 54, the empty plasma bag 8 is separated from the hanging needle 534 and then is collected to the bag receiving platform 15, and the spring 554 is stretched in the process. Thereafter, the electromagnet 552 is de-energized, the repulsive force between the electromagnet 552 and the magnet 553 disappears, and the spring 554 is restored to the original state, thereby driving the bag withdrawing plate 551 to move back to the original position.

Through such setting, simplified empty bag draining device 5's structure, reduced empty bag draining device 5's whole weight, it is more accurate convenient to move back the bag operation. The driving mechanism for driving the bag returning plate 551 may be adjusted as described above.

It should be noted that the hanging needle 54 may extend horizontally away from the rack 52 on only one side of the rack 52, and the rack 52 may be rotated 90 ° so that the plasma bag 8 with the clean blood may be moved from the bag hanging station to the bag withdrawing station.

In another possible embodiment, the stepping motor 53 may be arranged such that the axis of its output shaft is in a horizontal plane and the axis of the hanging needle 54 on the bag hanging station support 52 is in a horizontal state. When the output shaft of the stepping motor 53 rotates by 90 degrees, the axis of the hanging needle 54 on the bracket 52 is in a vertical state, and the hanging needle 54 on the bracket 52 reaches a bag withdrawing station.

In another possible embodiment, the bracket 52 is configured as a circular bracket, the hanging needles 54 are uniformly distributed around the circular bracket, and the stepping motor 53 drives the circular bracket to rotate around the rotating shaft thereof, so that the hanging needles 54 with the plasma bags hung at the bag hanging station move to the bag withdrawing station, and the hanging needles 54 with the plasma bags removed at the bag withdrawing station continuously move back to the bag hanging station.

In other possible embodiments, the bag-returning mechanism in each of the above embodiments can be eliminated.

In another possible embodiment, as shown in fig. 12, the bag breaking device 2 includes a cutter and a holding mechanism as a plasma bag transfer device for moving the plasma bag 8 to the hammer separation device 3, the cutter being disposed on a moving path of the plasma bag 8 so that the lower surface of the plasma bag 8 is opened by the cutter during the movement of the plasma bag 8. The cutters include a first cutter 23 and a second cutter 24, which are respectively disposed on the moving path of the plasma bag 8. The clamping mechanism comprises a sliding mechanism connected with the shell 1, a link mechanism connected with the sliding mechanism and a connecting frame a213 connected with the link mechanism, wherein the connecting frame a213 is provided with a jaw mechanism a214 and a first driving mechanism for driving the jaw mechanism. The sliding mechanism comprises a mounting frame b221 fixed to the housing 1 and two mounting frames a211 connected with the mounting frame b221 in a sliding manner, the link mechanism comprises two connecting arms 212 which are connected in a pivoting manner in sequence and two connecting arm driving portions (such as servo motors a 219) which respectively drive the two connecting arms 212 to rotate, the connecting frame a213 is connected with the tail ends of the second connecting arms 212 in a pivoting manner, two groups of connecting rods are respectively arranged on two sides of the multi-joint mechanical arm, each group of connecting rods comprises two connecting arm rods 215 and a connecting rod a216, one ends of the two connecting arm rods 215 are respectively connected to rotating shafts at two ends of the connecting arm 212 in a pivoting manner, two ends of the connecting rod a216 are respectively connected to the other ends of the two connecting arm rods 215 in a pivoting manner, and therefore, a parallelogram mechanism is formed by the corresponding connecting arms 212. The jaw mechanism a214 comprises two symmetrical swing rods, two connecting rods and a sliding rod, wherein first ends of the two swing rods are pivotally connected to the connecting frame a213, first ends of the two connecting rods are respectively pivotally connected to one side of the two swing rods opposite to each other, second ends of the two connecting rods are both pivotally connected with the first ends of the sliding rod, the sliding rod is slidably connected with the connecting frame a213, the second end of the sliding rod is connected with one end of the flexible rope 210, the second end of the flexible rope 210 penetrates through a through hole in a rotating shaft of the second connecting arm 212 and the connecting frame a213 and is connected to the first connecting arm 212, an elastic member is arranged between the connecting frame a213 and the sliding rod, the first elastic member is a spring sleeved on the sliding rod, and two ends of the spring are respectively connected with the connecting frame a213 and the sliding rod. In a state where the second connecting arm 212 pivots relative to the first connecting arm 212 to form a set angle (e.g. 35 °, 40 ° or other suitable angle), the flexible rope 210 is tensioned, the sliding rod is pulled by the flexible rope 210 relative to the connecting frame a213 by a certain distance, the elastic member is compressed by a corresponding distance, and the two swing rods swing towards each other by a corresponding angle to form a clamping state.

A first rotating shaft and a second rotating shaft which are parallel to each other are arranged between the two mounting frames a211, the proximal end (i.e. the end close to the mounting frames a211 in the direction of the transmission chain) of the first connecting arm 212 is pivotally connected to the first rotating shaft on the mounting frames a211, both ends of the first connecting rod a216 are respectively pivotally connected with the second rotating shaft on the mounting frames a211 and the other end of the connecting arm rod 215 connected to the distal end of the first connecting arm 212, the connecting arm rod 215 connected to the proximal end of the first connecting arm 212 is a virtual connecting rod and the position of the connecting arm rod and the mounting frames a211 is kept unchanged, and the connecting arm rod 215 pivotally connected to the same rotating shaft is fixedly connected, so that parallelogram mechanisms which are adjacent to each other are arranged in a linkage manner to keep the posture of the connecting frame a213 unchanged during the action of the multi-joint mechanical arm.

The two servo motors a219 are fixed to the two mounting brackets a211, respectively. An output shaft of one servo motor a219 is in driving connection with the proximal end of the first connecting arm 212 through a coupler, and the other servo motor a219 is in driving connection with the second connecting arm 212 through a connecting rod assembly. The linkage assembly comprises a rocker 217 and a connecting rod 218, the first end of the rocker 217 is pivotally connected to the first pivot, the output shaft of another servo motor a219 is drivingly connected to the first end of the rocker 217, the first end of the connecting rod 218 is pivotally connected to the second end of the rocker 217, the second end of the connecting rod 218 is pivotally connected to the second connecting arm 212, and the length between the point where the second end of the connecting rod 218 is connected to the second connecting arm 212 and the proximal end of the second connecting arm 212 is equal to the length of the rocker 217.

Through the arrangement, the bag cutting device 2 can enable the jaw mechanism a214 to clamp the plasma bag 8 to move horizontally under the action of the sliding mechanism, and can enable the jaw mechanism a214 to clamp the plasma bag 8 to move along an arc-shaped track under the action of the connecting rod mechanism, and the moving range of the plasma bag 8 is improved through the cooperation of the jaw mechanism a214 and the connecting rod mechanism.

As shown in fig. 12, it is preferable that the connecting frame a213 is further provided with a hammer mechanism and a second driving mechanism for driving the hammer mechanism. The hammer mechanism and corresponding second drive mechanism are the same as the hammer mechanism and corresponding drive mechanism in fig. 8 and will not be described in detail here.

The sliding mechanism may include a first sliding member slidably connected to the housing 1 and a second sliding member connected to the first sliding member, and the connecting frame a213 may be fixedly connected to the second sliding member. The first slide member is movable in a first direction relative to the housing 1 and the second slide member is movable in a second direction relative to the first slide member, the first and second directions may both be in a horizontal plane and perpendicular, or in a horizontal plane and a vertical plane, respectively.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a plasma bag fixture for plasma bag-breaking machine, its characterized in that, plasma bag fixture include the installation component, with jack catch mechanism and actuating mechanism that the installation component is connected, actuating mechanism includes electromagnetic drive unit and the reset unit, electromagnetic drive unit with the reset unit cooperation is so that the drive jack catch mechanism opens and shuts.

2. The plasma bag clamping mechanism of claim 1, wherein the jaw mechanism comprises two symmetrical swing rods, two connecting rods and a sliding rod,

the first ends of the two swing rods are pivotally connected to the mounting member, the first ends of the two connecting rods are respectively pivotally connected to one side of the two swing rods, the second ends of the two connecting rods are both pivotally connected with one end of the sliding rod, the sliding rod is slidably connected with the mounting member,

the driving mechanism is arranged between the mounting component and the sliding rod so as to drive the two swing rods to swing towards or away from each other in a mode of driving the sliding rod to move along the axis of the sliding rod.

3. The plasma bag clamping mechanism of claim 2 wherein the reset unit comprises a resilient member connecting the mounting member and the slide bar.

4. The plasma bag clamping mechanism of claim 3 wherein the resilient member is a spring having two ends respectively connecting the mounting member and the slide bar.

5. The plasma bag clamping mechanism of claim 4 wherein the spring is sleeved on the sliding bar.

6. The plasma bag clamping mechanism of claim 4 wherein the number of the springs is multiple, and the multiple springs are evenly distributed around the sliding rod.

7. The plasma bag clamping mechanism according to any one of claims 3 to 6 wherein the electromagnetic drive unit comprises a first electromagnet and a ferromagnetic body;

the first electromagnet and the ferromagnetic body are respectively disposed on the mounting member and the slide bar, or the first electromagnet and the ferromagnetic body are respectively disposed on the slide bar and the mounting member.

8. The plasma bag clamping mechanism of claim 7 wherein the ferromagnetic body is a permanent magnet, the plasma bag clamping mechanism configured to: when the claw mechanism is in a clamping state, the elastic component is in an extending state, so that the repulsion force between the first electromagnet and the permanent magnet pushes the sliding rod to move towards a direction away from the mounting component.

9. The plasma bag clamping mechanism according to claim 2 wherein the driving mechanism comprises a first electromagnet, a second electromagnet and a stop member, the first electromagnet and the second electromagnet being disposed on the mounting member and the slide bar, respectively, the first electromagnet and the second electromagnet forming the electromagnetic drive unit and the first electromagnet and the second electromagnet forming the reset unit, the stop member for limiting a maximum distance of the slide bar from the mounting member.

10. The plasma bag clamping mechanism of claim 9 wherein the stop member is a flexible cord connecting the mounting member and the slide bar.

Images