CN114132768A - Cup separating mechanism and feeding device - Google Patents

Abstract

The invention relates to a cup separating mechanism and a feeding device. The cup separating mechanism is characterized by comprising a cup separating assembly with a bearing piece, wherein the bearing piece can move between an initial station and a first station, and the cup separating assembly shields the conveying channel to prevent two adjacent reaction cups from moving in the process that the bearing piece moves from the initial station to the first station; during the process of returning the carrier from the first station to the initial station, the two adjacent reaction cups which are blocked start moving one after the other. So can avoid two reaction cups because of the horizontal cup and the card cup phenomenon that lead to from the delivery channel in output simultaneously, ensure the orderliness that the reaction cup carried, and then improve feedway and carry reliability and work efficiency to the reaction cup. The cup separating mechanism has simple structure, so the manufacturing cost can be reduced.

Description

Cup separating mechanism and feeding device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a cup separating mechanism and a feeding device comprising the cup separating mechanism.

Background

The feeding device is used for conveying and supplying the reaction cups, however, for the traditional feeding device, in the process that the reaction cups are conveyed in a specific conveying channel, two adjacent reaction cups are almost simultaneously output from the conveying channel, so that the conveying posture of the reaction cups is changed from vertical type to horizontal type, and the phenomenon of 'cup clamping' which is stopped and cannot be conveyed occurs to the reaction cups. Therefore, the conventional feeding device has the defect of a stuck cup, and finally the reliability of the feeding device is low.

Disclosure of Invention

The invention solves the technical problem of how to improve the conveying orderliness of reaction cups to avoid the phenomenon of cup blockage.

A cup separating mechanism is used in cooperation with a first limiting piece and a second limiting piece, a conveying channel is formed between the first limiting piece and the second limiting piece at intervals, reaction cups can move on the conveying channel under the action of self gravity, the cup separating mechanism comprises a cup separating assembly with a bearing piece, the bearing piece can move between an initial station and a first station, and in the process that the bearing piece moves from the initial station to the first station, the cup separating assembly shields the conveying channel to prevent two adjacent reaction cups from moving; and during the process that the carrier returns from the first station to the initial station, the two blocked adjacent reaction cups start to move in sequence.

In one embodiment, the cup separating assembly further comprises a cup separating module connected with the carrier, the carrier is also provided with a second station, and the cup separating module straddles the conveying channel to prevent the reaction cups from moving in the process of moving the carrier from the initial station to the first station through the second station; for two adjacent reaction cups which are blocked, when the bearing piece moves from the first station to the second station, the cup dividing module allows one reaction cup to move; when the bearing piece moves a set distance from the second station to the initial station, the cup separating module allows the other reaction cup to move.

In one embodiment, the carrier moves linearly or rotationally between the initial station, a first station and a second station, the first station being further from the initial station than the second station.

In one embodiment, the cup separating module comprises fixed rods and sliding rods which are arranged at intervals, the bearing piece is provided with a first surface which is positioned in the thickness direction and faces the conveying channel, a sliding hole which penetrates through the whole bearing piece and is provided with an opening on the first surface is formed in the bearing piece, the sliding rods are in sliding fit with the sliding hole, the moving direction of the reaction cups in the conveying channel is taken as reference, and the sliding rods are positioned in front of the fixed rods; the sliding rod is longer than the protruding length of the fixed rod relative to the first surface at the initial station; during the process that the carrier moves from the second station to the first station, the sliding rod slides and reduces the protruding length relative to the first surface not less than the width of the conveying channel.

In one embodiment, the sliding device further comprises a stop member, the bearing member is located on a side where the first limiting member is located, the first surface faces the first limiting member, the stop member is located on a side where the second limiting member is located, and the stop member can be abutted with the sliding rod to enable the sliding rod to slide relative to the bearing member.

In one embodiment, at the initial station, the difference between the protruding lengths of the sliding rod and the fixed rod relative to the first surface is equal to half of the width of the conveying channel; during the movement of the carrier from the second station to the first station, the sliding bar has a reduced protruding length relative to the first surface equal to the width of the transport path.

In one embodiment, the device further comprises an abutting piece, and the abutting piece is abutted against the sliding rod and pushes the sliding rod to slide relative to the bearing piece to reset in the process that the bearing piece returns from the second station to the initial station.

In one embodiment, the sliding rod comprises a thick rod section and a thin rod section which are connected with each other, the cross-sectional dimension of the thick rod section is larger than that of the thin rod section, the thin rod section is in sliding fit with the sliding hole, and the thick rod section is positioned outside the sliding hole.

In one embodiment, at least one of the following schemes is further included:

in the initial station, the orthographic projection of the end part of the sliding rod along the gravity direction falls on the edge of the conveying channel;

the fixed rod and the sliding rod are both located outside the conveying channel.

A feeding device comprising the cup dispensing mechanism of any one of the above.

One technical effect of one embodiment of the invention is that: since the two adjacent reaction cups are prevented from moving successively during the process that the carrier moves from the first station to the initial station, the two reaction cups are prevented from moving simultaneously and are output from the conveying channel at almost the same time. So can avoid two reaction cups because of the horizontal cup and the card cup phenomenon that lead to from the delivery channel in output simultaneously, ensure the orderliness that the reaction cup carried, and then improve feedway and carry reliability and work efficiency to the reaction cup. The cup separating mechanism is simple in structure, is driven through a mechanical structure, does not need other complex circuit control structures, and can reduce the manufacturing cost.

Drawings

FIG. 1 is a schematic perspective view of a reaction cup;

FIG. 2 is a schematic perspective view of a feeding device according to an embodiment;

FIG. 3 is a schematic perspective view of the feeding device shown in FIG. 2 from another perspective;

FIG. 4 is a schematic view of a first partial structure of the feeding device of FIG. 2 with parts removed;

FIG. 5 is a perspective view of FIG. 4 from another perspective;

FIG. 6 is a second partial schematic view of the feeder device of FIG. 2 with parts removed;

FIG. 7 is an exploded view of FIG. 6 from another perspective;

FIG. 8 is a schematic view of the operation of the cup dispensing mechanism of FIG. 6;

FIG. 9 is a partial cross-sectional structural view of FIG. 6;

FIG. 10 is a perspective view of the guide mechanism of FIG. 6;

FIG. 11 is a third partial schematic view of the feeding device shown in FIG. 2 with parts removed.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, 2 and 3, a feeding device 10 according to an embodiment of the present invention includes a feeding mechanism 100, a conveying mechanism 200, a cup dispensing mechanism 300, a guiding mechanism 400, a sorting mechanism 500 and a separating mechanism 600. The feeding device 10 is used for feeding the reaction cup 20, the reaction cup 20 comprises a cup body 21 and a flange 22, the flange 22 is approximately annular and is arranged around the cup body 21, the cup body 21 can be cylindrical, and the flange 22 protrudes relative to the cup body 21 along the radial direction of the cup body 21 for a certain length, so that the outer diameter of the flange 22 is larger than that of the cup body 21.

In some embodiments, the feed mechanism 100 includes a support base 110, a magazine 120, a pusher plate 130, a timing belt 144 assembly 140, a spacer plate 150, and a blocker plate 160. The storage bin 120 is fixed on the support 110, the storage bin 120 is substantially funnel-shaped, so that the storage bin 120 encloses a conical cavity, the partition plate 150 is connected with the storage bin 120 and located in the conical cavity, the partition plate 150 partitions the conical cavity into two relatively independent cavities, the two cavities are respectively marked as a storage cavity 121 and a conveying cavity 122, the storage cavity 121 is used for storing the empty reaction cups 20, and the conveying mechanism 200 is arranged in the conveying cavity 122 in a penetrating manner. The pushing plate 130 is slidably connected with the support 110 and is inserted into the storage cavity 121, and the pushing plate 130 can be tightly attached to the partition plate 150, so that the partition plate 150 has a limiting and guiding function on the movement of the pushing plate 130 in the storage cavity 121. The synchronous belt 144 assembly 140 comprises a motor 141, a driving wheel 142, a driven wheel 143 and a synchronous belt 144, the motor 141 is fixed on the support 110, the driving wheel 142 is connected with an output shaft of the motor 141, the driven wheel 143 is rotatably connected with the support 110, and the driving wheel 142 and the driven wheel 143 have the same diameter and are arranged at intervals in the vertical direction. The synchronous belt 144 is sleeved on the driving wheel 142 and the driven wheel 143, the tight edges and the loose edges of the synchronous belt 144 are arranged in parallel with each other at equal intervals, and the ejector plate 130 is fixed on the tight edges or the loose edges of the synchronous belt 144. When the motor 141 is operated, the push plate 130 may be driven to reciprocate in the vertical direction.

Referring to fig. 4, 5, 6 and 7, in some embodiments, the conveying mechanism 200 includes a first limiting member 210 and a second limiting member 220, the first limiting member 210 and the second limiting member 220 are substantially plate-shaped and spaced apart, a space between the first limiting member 210 and the second limiting member 220 forms a conveying channel 230 for the reaction cup 20 to pass through, an outer diameter of the cup body 21 is smaller than or equal to a width of the conveying channel 230, and an outer diameter of the flange 22 is larger than the width of the conveying channel 230. When the reaction cup 20 moves in the conveying channel 230, the flange 22 of the reaction cup 20 is carried on the first limiting member 210 and the second limiting member 220, and the portion of the cup body 21 below the flange 22 is received in the conveying channel 230, obviously, the reaction cup 20 is suspended on the first limiting member 210 and the second limiting member 220 by the action of the flange 22. The first limiting member 210 and the second limiting member 220 are disposed at a certain included angle with respect to the vertical direction, or the first limiting member 210 and the second limiting member 220 are disposed at a certain angle with respect to the horizontal direction, so that the conveying channel 230 is disposed at an inclined angle with respect to the horizontal direction, and the reaction cup 20 can move from top to bottom under the action of its own weight. Considering that the first limiting member 210 and the second limiting member 220 are disposed in the conveying cavity 122, a portion of the first limiting member 210 and the second limiting member 220 can be located inside the conveying cavity 122, and another portion of the first limiting member 210 and the second limiting member 220 can be located outside the conveying cavity 122 and the entire storage bin 120, obviously, the conveying channel 230 and the conveying cavity 122 are communicated with each other. The blocking plate 160 is fixedly connected to the bin 120 and positioned within the tapered cavity, and the blocking plate 160 is positioned above the delivery cavity 122 and the ejector plate 130.

When the reaction cup feeder works, the motor 141 drives the pushing plate 130 to move upwards, the reaction cup 20 is located in a space between the pushing plate 130 and the partition plate 150, namely, the pushing plate 130 and the partition plate 150 limit the reaction cup 20, the pushing plate 130 pushes the reaction cup 20, when the reaction cup 20 is located at the top end of the partition plate 150, the partition plate 150 loses the limiting effect on the reaction cup 20, so that the reaction cup 20 falls into the conveying cavity 122 from the storage cavity 121, and further falls into the conveying channel 230 from the conveying cavity 122, so that the reaction cup 20 is conveyed out of the bin 120 through the conveying channel 230. In the process that the reaction cup 20 is pushed upwards by the pushing plate 130, the reaction cup 20 is usually in a horizontal state, i.e. the reaction cup 20 falls into the conveying cavity 122 in a horizontal posture; when the reaction cup 20 is in the vertical state, the upper end of the reaction cup 20 abuts against the blocking plate 160, and the reaction cup 20 is converted from the vertical state to the horizontal state to enter the conveying cavity 122 under the action of the blocking plate 160. Therefore, by providing the top pushing plate 130, during each upward movement of the top pushing plate 130, the top pushing plate 130 can push one reaction cup 20 into the conveying cavity 122 and enter the conveying channel 230, so that the conveying channel 230 can sequentially output the reaction cups 20 in the storage cavity 121 out of the storage bin 120.

Referring to fig. 6, 7 and 8, in some embodiments, the cup dispensing mechanism 300 includes a cup dispensing assembly 310, a mounting plate 320, a stopper 330, an abutment 340 and a linear motor 350. The mounting plate 320 may be fixed to the support 110, the linear motor 350 may be fixed to the mounting plate 320, and the linear motor 350 and the dispensing cup assembly 310 may drive the dispensing cup assembly 310 to perform a reciprocating linear motion in a horizontal direction. The cup separating assembly 310 has an initial station 303, and during the process that the linear motor 350 drives the cup separating assembly 310 to be far away from the initial station 303, the cup separating assembly 310 can shield the conveying channel 230 to prevent the reaction cup 20 from moving; during the process that the linear motor 350 drives the cup separating assembly 310 to move close to the initial station 303, two adjacent reaction cups 20 which are prevented from moving in the conveying channel 230 start moving at set time intervals.

The cup dispensing assembly 310 comprises a carrier 311 and a cup dispensing module 312, and it is obvious that when the cup dispensing assembly 310 is located at the initial station 303, the carrier 311 is also located at the initial station 303. The carrier 311 further has a first station 301 and a second station 302, the first station 301 is further away from the initial station 303 than the second station 302, that is, the second station 302 is located between the first station 301 and the initial station 303, which can also be understood as the initial station 303 is farthest away from the conveying channel 230, and the first station 301 is closest to the conveying channel 230, so that the carrier 311 makes a reciprocating linear motion between the initial station 303, the first station 301 and the second station 302. During the movement of the carrier 311 from the initial station 303 to the first station 301 through the second station 302, the cup dispensing module 312 straddles the transfer path 230 to prevent the reaction cups 20 from moving. When the carrier 311 moves from the first station 301 to the second station 302, the cup separating module 312 allows one reaction cup 20 to move; when the carrier 311 moves a set distance from the second station 302 to the initial station 303, the cup separating module 312 allows another reaction cup 20 to move. In other embodiments, the carrier 311 may rotate, so long as the two adjacent reaction cups 20 stopped in the conveying passage 230 are started to move at a predetermined time interval.

In some embodiments, the cup separating module 312 includes a fixed rod 312a and a sliding rod 312b, and both the fixed rod 312a and the sliding rod 312b may be cylindrical rods or prismatic rods, i.e., the cross section of both the fixed rod 312a and the sliding rod 312b may be circular, polygonal, or elliptical, etc. The interval between the sliding rod 312b and the fixing rod 312a may be larger than the outer diameter of the cup body 21 of the reaction cup 20 so that one reaction cup 20 can be received between the sliding rod 312b and the fixing rod 312 a. Referring to the output port of the conveying passage 230, the sliding rod 312b is closer to the output port than the fixed rod 312a, and it can also be understood that the fixed rod 312a is located at an obliquely upper position of the sliding rod 312 b. Referring to the moving direction of the reaction cup 20 in the conveying passage 230, the sliding rod 312b is located in front of the fixing rod 312a, the fixing rod 312a and the sliding rod 312b are located outside the conveying passage 230, and the fixing rod 312a and the sliding rod 312b can shield the conveying passage 230 at a position above the conveying passage 230, thereby preventing the reaction cup 20 from moving.

The carrier 311 may have a block structure of a substantially rectangular parallelepiped, and the carrier 311 is connected to an output shaft of the linear motor 350. When the output shaft of the linear motor 350 expands and contracts, the carrier 311 can be driven to move linearly in the horizontal direction among the initial station 303, the first station 301 and the second station 302. The carrier 311 is located at a side of the first limiting member 210, and when the carrier 311 abuts against the first limiting member 210, a limit position at which the carrier 311 moves away from the initial station 303 can be defined. In other words, when the carrier 311 abuts against the first position-limiting member 210, the carrier 311 will not move away from the initial station 303 any more. The carrier 311 has a first surface 311a and a second surface 311b, the first surface 311a and the second surface 311b are two outer surfaces in the thickness direction of the carrier 311, the first surface 311a and the second surface 311b are oppositely oriented, the first surface 311a is disposed toward the conveying passage 230, and the second surface 311b is disposed away from the conveying passage 230. The bearing 311 is provided with a sliding hole 311c, the sliding hole 311c penetrates the entire bearing 311 along the thickness direction, obviously, the sliding hole 311c penetrates both the first surface 311a and the second surface 311b, so that there are openings on both the first surface 311a and the second surface 311b, and the sliding hole 311c is in sliding fit with both the sliding rod 312 b. The sliding rod 312b includes a thick rod section 3121 and a thin rod section 3122 connected to each other, the thick rod section 3121 has a cross-sectional size larger than that of the thin rod section 3122, the thin rod section 3122 is slidably fitted to the sliding hole 311c, and the thick rod section 3121 is located outside the sliding hole 311c and on a side where the second surface 311b is located. When the thin rod segment 3122 of the slide rod 312b slides in the slide hole 311c, the protruding length of the slide rod 312b with respect to the first surface 311a may be changed, and the protruding length of the slide rod 312b with respect to the second surface 311b may also be changed. Obviously, when the thick rod segment 3121 moves closer to the second surface 311b, the protruding length of the sliding rod 312b with respect to the first surface 311a increases, and the protruding length of the sliding rod 312b with respect to the second surface 311b decreases; when the thick rod section 3121 abuts against the second surface 311b, the sliding rod 312b slides to an extreme position relative to the carrier 311. Conversely, when the thick rod section 3121 moves away from the second surface 311b, the protruding length of the slide rod 312b with respect to the first surface 311a decreases, and the protruding length of the slide rod 312b with respect to the second surface 311b increases. The fixing rod 312a is fixedly connected to the carrier 311, so that the fixing rod 312a cannot slide relative to the carrier 311, that is, the fixing rod 312a always follows the carrier 311 to generate synchronous motion.

The stopper 330 is located at one side of the second limiting member 220, the stopper 330 may be fixed on the second limiting member 220, and the stopper 330 may be a plate-shaped structure. During the movement of the carriage 311 close to the first station 301, when the thin rod segment 3122 of the sliding rod 312b abuts against the stopper 330, the movement of the sliding rod 312b relative to the conveying channel 230 is stopped, and the carriage 311 moves relative to the sliding rod 312b close to the conveying channel 230. The abutment 340 may be a rod-shaped structure, the abutment 340 may be fixed on the mounting plate 320, during the process that the carrier 311 moves close to the initial station 303, the abutment 340 will press against the thick rod segment 3121 of the sliding rod 312b, the sliding rod 312b stops moving relative to the conveying channel 230, and the carrier 311 moves relative to the sliding rod 312b and moves away from the conveying channel 230, so that the sliding rod 312b is finally reset relative to the carrier 311. The reset means that when the carrier 311 is at the initial station 303, the position of the slide rod 312b relative to the carrier 311 is restored.

In some embodiments, at the initial station 303, an orthographic projection of the end of the sliding rod 312b along the direction of gravity may fall on the edge of the conveying passage 230, and the sliding rod 312b is longer than the fixed rod 312a with respect to the first surface 311a, i.e., the difference between the protruding lengths of the sliding rod 312b and the fixed rod 312a with respect to the first surface 311a is equal to half of the width H of the conveying passage 230. During the movement of the carrier block from the second station 302 to the first station 301; the sliding rod 312b has a reduced protruding length with respect to the first surface 311a equal to the width H of the conveyance path 230, and it is apparent that the sliding rod 312b has an increased protruding length with respect to the second surface 311b equal to the width H of the conveyance path 230. In other embodiments, at the initial station 303, the length of the protrusion of the sliding rod 312b from the first surface 311a is longer than that of the fixed rod 312 a; during the movement of the carrier 311 from the second station 302 to the first station 301, the sliding rod 312b slides and decreases in projection length with respect to the first surface 311a by a length greater than the width of the conveyance channel 230.

Referring to fig. 8, the operation of the cup mechanism 300 will now be described:

in the first step, the carrier 311 is at the initial station 303, the abutting part 340 abuts against the end of the sliding rod 312b on the side of the second surface 311b, the difference between the protruding lengths of the sliding rod 312b and the fixed rod 312a relative to the first surface 311a is just equal to half of the width H of the conveying channel 230, i.e. the difference between the protruding lengths is H/2, and the orthographic projection of the end of the sliding rod 312b on the side of the first surface 311a along the direction of gravity can just fall on the edge of the conveying channel 230, i.e. on the left edge of the conveying channel 230, at this time, the end of the fixed rod 312a on the side of the first surface 311a will be spaced from the left edge of the conveying channel 230 by the distance of half of the width H of the conveying channel 230, i.e. by the distance H/2.

In the second step, the linear motor 350 pushes the carrier 311 to move directly from the initial station 303 to the first station 301, and in the process from the initial station 303 to the first station 301, the carrier 311 will pass through the second station 302, and the carrier 311 may have a speed at the second station 302 and still move, which can be simply understood as that the carrier 311 always moves from the initial station 303 to the first station 301 at a speed greater than zero. Specifically, the method comprises the following steps:

first, when the carrier 311 moves to the right by a distance of the conveying unit width H from the initial station 303, the carrier 311 is located at the second station 302, the orthographic projection of the end of the fixed rod 312a located on the first surface 311a side falls just in the middle of the conveying passage 230, the distance from the right edge of the conveying passage 230 to the end is H/2, and the orthographic projection of the end of the sliding rod 312b located on the first surface 311a side falls just at the right edge of the conveying passage 230, at this time, the sliding rod 312b will have an abutting effect with the stopper 330, and the sliding rod 312b will stop moving relative to the conveying passage 230. During the movement of the carrier 311 from the initial station 303 to the second station 302, the sliding rod 312b shields the conveying channel 230 before the fixed rod 312a protrudes above the conveying channel 230 to form a barrier, so that the first reaction cup 20a in the conveying channel 230 is blocked in the conveying channel 230 by the sliding rod 312 b. After the fixing rod 312a extends above the conveying channel 230 to form a block, the fixing rod 312a blocks the second reaction cup 20b conveyed subsequently in the conveying channel 230, and the sliding rod 312b still plays a blocking role. In short, when the carrier 311 moves from the initial station 303 to the second station 302, the fixing rod 312a and the sliding rod 312b may block the two reaction cups 20 in the transfer passage 230. Obviously, the first reaction cup 20a is located between the fixed rod 312a and the sliding rod 312b, and the second reaction cup 20b is located above the first reaction cup 20 a.

Then, when the carrier 311 moves from the second station 302 to the right by a distance of one conveying unit width H, the carrier 311 reaches the first station 301, the end of the fixed rod 312a on the side of the first surface 311a protrudes beyond the right edge of the conveying channel 230 by half the conveying unit width H, i.e., protrudes beyond the right edge H/2, and in view of the sliding rod 312b abutting against the stopper 330, the carrier 311 will move relative to the sliding rod 312b, so that the protruding length of the sliding rod 312b relative to the first surface 311a is reduced by a value equal to exactly one conveying unit width H; and the length of projection of the slide bar 312b with respect to the second surface 311b is increased by an amount just equal to one conveying unit width H. At this time, the protruding length of the sliding bar 312b with respect to the first surface 311a is shorter than that of the fixed bar 312a, i.e., the difference between the protruding lengths of the sliding bar 312b and the fixed bar 312a with respect to the first surface 311a is equal to half the width H of the conveying path 230.

Third, when the carrier 311 moves to the first station 301, the carrier 311 stops at the first station 301, and the carrier 311 moves leftward to return to the initial station 303. Likewise, during the process from the first station 301 to the initial station 303, the carrier 311 will pass through the second station 302, and the carrier 311 may have a speed at the second station 302 while still generating a motion, which may be simply understood as the carrier 311 always moving from the first station 301 to the initial station 303 at a speed greater than zero. Specifically, the method comprises the following steps:

first, the carrier 311 moves leftwards from the first station 301 by a distance equal to the width H of the conveying channel 230 to reach the second station 302, the sliding rod 312b, the fixed rod 312a and the carrier 311 all move synchronously, and considering that the protruding length of the sliding rod 312b relative to the first surface 311a at the first station 301 is just less than half of the width H of the conveying channel 230 by the fixed rod 312a, the orthographic projection of the end of the sliding rod 312b on the side of the first surface 311a just falls on the left edge of the conveying channel 230, that is, the sliding rod 312b completely separates from the conveying channel 230, so that the sliding rod 312b loses the blocking effect on the first reaction cup 20a, and the first reaction cup 20a will start to move from the conveying channel 230 and output. While the front projection of the fixing rod 312a at one side end of the first surface 311a is located at the middle of the conveying path 230, the fixing rod 312a prevents the second cuvette 20b from moving simultaneously with the first cuvette 20a, i.e., the second cuvette 20b will stay in the conveying path 230.

Then, when the carrier 311 moves to the left by a distance of the transport unit width H from the second station 302, the carrier 311 reaches the initial station 303. During the movement of the carrier 311 from the second station 302 to the initial station 303, when the fixing rod 312a moves by a distance of half the width H of the transportation path 230, the fixing rod 312a just exits the transportation path 230, so that the fixing rod 312a loses the blocking effect on the second reaction cup 20b, and the second reaction cup 20b starts to move to be output from the transportation path 230. Therefore, the movement interval of the first reaction cup 20a and the second reaction cup 20b is just the time required for the carrier 311 to move half the width H of the transportation path 230, so that the movement of the second reaction cup 20b is later than the movement of the first reaction cup 20a by a set time, and the two reaction cups 20 are ensured to move in sequence with a certain time offset. Whereas for the sliding bar 312b, when the carrier 311 is in the second station 302, the sliding bar 312b will be in contact with the abutment 340. During the process of returning the carrier 311 from the second station 302 to the initial station 303, the sliding rod 312b is stationary relative to the abutment 340, and the carrier 311 slides relative to the sliding rod 312b to move to the initial station 303, so that the protruding length of the sliding rod 312b relative to the first surface 311a is increased by the width H of the conveying channel 230, and the protruding length of the sliding rod 312b relative to the second surface 311b is decreased by the width H of the conveying channel 230. When the carrier 311 reaches the initial station 303, the sliding rod 312b is reset, so that the protruding length of the sliding rod 312b relative to the first surface 311a is longer than that of the fixed rod 312a, and the difference between the protruding lengths of the sliding rod 312b and the fixed rod 312a relative to the first surface 311a is equal to half of the width H of the conveying channel 230.

Therefore, by providing the cup separating mechanism 300, two adjacent cuvettes 20 in the conveying path 230 can be moved in sequence at a certain time interval, and the two cuvettes are prevented from moving simultaneously and being output from the conveying path 230 almost simultaneously. Therefore, the phenomena of cup crossing and cup clamping caused by the fact that the two reaction cups 20 are simultaneously output from the conveying channel 230 can be avoided, the conveying orderliness of the reaction cups 20 is ensured, and the conveying reliability and the working efficiency of the feeding device 10 to the reaction cups 20 are improved. The cup dispensing mechanism 300 is simple in structure, and is driven by a mechanical structure without other complicated circuit control structures, so that the reliability of the feeding device 10 can be improved on the basis of reducing the manufacturing cost.

Referring to fig. 3, 7, 9 and 10, in some embodiments, the guide mechanism 400 corresponds to the output port of the conveying channel 230, so that the reaction cups 20 output from the conveying channel 230 are output through the guide mechanism 400, the guide mechanism 400 includes a guide member 410 and a collision member 420, the guide member 410 is fixed to the first limiting member 210 and/or the second limiting member 220, and the collision member 420 is connected to the guide member 410.

In some embodiments, the guide 410 includes a guide body 411, a first clip 412, and a second clip 413. The guide body 411 is provided with a guide hole 411a, and the central axis of the guide hole 411a extends along the gravity direction, so that the reaction cup 20 can freely fall in the guide hole 411 a; in a colloquial manner, the guide hole 411a is vertically disposed. The first clamping plate 412 and the second clamping plate 413 are arranged at intervals and are connected with the guide main body 411, the first clamping plate 412 can be tightly attached to the first limiting member 210 and can clamp the first limiting member 210, the second clamping plate 413 can be tightly attached to the second limiting member 220 and can clamp the second limiting member 220, and the second clamping plate 413 can be directly fixed on the second limiting member 220 through bolts, so that the whole guide member 410 is fixed. A communication groove 414 is formed between the first clamping plate 412 and the second clamping plate 413, and the communication groove 414 is simultaneously communicated with the conveying channel 230 and the guide hole 411a, so that the reaction cup 20 output from the conveying channel 230 can enter the guide hole 411a through the communication groove 414.

The cross-section of the guide hole 411a may be circular, polygonal, or elliptical, etc., and the guide hole 411a may be a stepped hole having a large top and a small bottom, and the diameter of the guide hole 411a is smaller than the outer diameter of the reaction cup 20 so that the reaction cup 20 can be dropped from the guide hole 411 a. For example, the guide hole 411a includes a first guide section 4111 and a second guide section 4112, the second guide section 4112 is located above the first guide section 4111, the diameter of the second guide section 4112 is greater than that of the first guide section 4111, the diameter of the second guide section 4112 increases along the direction in which the first guide section 4111 points to the second guide section 4112 (i.e., from bottom to top), so that the second guide section 4112 is in a tapered structure, and the diameter of the first guide section 4111 remains constant, so that the first guide section 4111 is in a cylindrical structure. The second guide section 4112 includes a third guide portion 4113 and a fourth guide portion 4114, the fourth guide portion 4114 is located above the third guide portion 4113, and a longitudinal section of the guide 410 is taken as a reference, and an intersection line between the longitudinal section and an inner wall surface of the fourth guide portion 4114 is a straight line 401, and the intersection line may also be a curved line; an intersection of the vertical cross section and the inner wall surface of the third guide portion 4113 is a curved line 402, and the curved line 402 may be an arc line.

In some embodiments, the collision member 420 collides with the reaction cup 20 in the transfer passage 230 to smoothly enter the reaction cup 20 into the guide hole 411 a. In order to increase the collision probability and guiding effect of the collision member 420 with the reaction cup 20, the orthographic projection of the collision member 420 on the guide member 410 covers at least part of the guide hole 411a, i.e. the orthographic projection of the collision member 420 on the cross section of the guide hole 411a covers at least part of the guide hole 411a, but of course, the orthographic projection may not cover the guide hole 411 a. Collision piece 420 includes fixed plate 421, collide arc 422, collide dull and stereotyped 423 and baffle 424, rectangular shape hole 421a has been seted up on the fixed plate 421, this rectangular shape hole 421a extends along the direction of gravity, the extending direction that also is rectangular shape hole 421a is the same with the extending direction of guiding hole 411a the central axis, the round hole has been seted up on the guide 410, during the installation, rectangular shape hole 421a is farther away from guiding hole 411a than the round hole relatively, can popular understand that rectangular shape hole 421a is located the outside of round hole, when wearing to establish fasteners such as bolt in rectangular shape hole 421a and the round hole simultaneously, and make the tip and the fixed plate 421 of fastener counterbalance tightly, so make fixed plate 421 pass through the fastener to be fixed on guide 410. By changing the installation positions of the fastening members and the elongated holes 421a, the installation positions of the fixing plate 421 and the entire collision member 420 with respect to the guide member 410 can be changed, thereby changing the collision force and the guide effect of the collision member 420 with respect to the reaction cup 20. The collision arc-shaped plate 422 is approximately in a curved shape, the collision arc-shaped plate 422 is curved towards the conveying channel 230, the collision arc-shaped plate 422 is connected between the fixed plate 421 and the collision flat plate 423, namely, the lower end of the collision arc-shaped plate 422 is connected with the fixed plate 421, the upper end of the collision arc-shaped plate 422 is connected with the collision flat plate 423, and the collision flat plate 423 can be in a planar structure.

By arranging the collision flat plate 423 and the collision arc-shaped plate 422, both can generate collision action with the reaction output from the conveying channel 230, so that the reaction cups 20 are output from the conveying channel 230 in a correct posture, the phenomena of cup crossing and cup clamping of the reaction cups 20 are prevented, and the reaction cups 20 are ensured to smoothly enter the guide holes 411a from the conveying channel 230 through the communication grooves 414. Meanwhile, for the guiding hole 411a, the caliber of the second guiding section 4112 is greater than that of the first guiding section 4111, the guiding function of the second guiding section 4112 with a large caliber can be fully exerted, so that the reaction cup 20 smoothly falls into the guiding hole 411a, furthermore, the intersecting line of the longitudinal section and the inner wall surface of the fourth guiding section 4114 is a straight line 401, the intersecting line of the longitudinal section and the inner wall surface of the third guiding section 4113 is a curve 402, the arrangement can make the stress of the inner wall surface of the second guiding section 4112 facing the reaction cup 20 more uniform, the cup sticking phenomenon is prevented from occurring in the reaction, the reaction cup 20 is ensured to smoothly fall into the guiding hole 411a, and the output from the guiding hole 411a is facilitated.

In some embodiments, the collision member 420 further includes a baffle 424, the baffle 424 is connected to the fixing plate 421 in a bending manner, the guide holes 411a are located within a range surrounded by the baffle 424 and the fixing plate 421, and the baffle 424 is configured to limit the reaction cup 20 from the side, so as to prevent the reaction cup 20 from failing to fall into the guide holes 411a after the collision member 420 collides. The baffle 424 may also function to prevent cup jamming.

In some embodiments, the sorting mechanism 500 includes a first positioning plate 510, a second positioning plate 520, and a cover plate 540, the first positioning plate 510 and the second positioning plate 520 are spaced apart, the first positioning plate 510 and the second positioning plate 520 are inclined with respect to the horizontal, and a gap between the first positioning plate 510 and the second positioning plate 520 forms the sorting channel 530. The sorting passage 530 is also disposed obliquely and below the guide hole 411 a. When the cuvette 20 in the guide hole 411a is dropped in a vertical posture, the cuvette 20 falls into the sorting channel 530 and slides down the sorting channel 530 in order by its own weight. The width of the sequencing channel 530 is slightly larger than the outer diameter of the cup 21 of the cuvette 20, and the width of the sequencing channel 530 is smaller than the outer diameter of the flange 22 of the cuvette 20, so that the cup 21 of the cuvette 20 is received in the sequencing channel 530, and the flange 22 of the cuvette 20 abuts against the first positioning plate 510 and the second positioning plate 520, so that the cuvette 20 is suspended in the sequencing channel 530.

The cover plate 540 may be rotatably disposed on the first positioning plate 510 or the second positioning plate 520, and the cover plate 540 may cover the sequencing channel 530 to a certain extent, so that the cover plate 540 protects the reaction cups 20 of the sequencing channel 530. When service and maintenance of the sequencing channel 530 is required, the cover plate 540 may be rotated such that the cover plate 540 opens the sequencing channel 530 to provide good clearance for maintenance of the sequencing channel 530.

Referring to fig. 2, 3, and 11, in some embodiments, the detaching mechanism 600 includes a detaching member 610, an elastic member 620, a fixing member 630, a driver 641, a gear 642, a rack 643, a first sensor 651, and a second sensor 652. The separating member 610 can move relative to the sequencing channel 530 and is used for receiving the reaction cup 20 from the sequencing channel 530, the separating member 610 can be approximately in a rectangular parallelepiped block structure and can move linearly in the horizontal direction, a separating hole 611 is formed in the separating member 610, the central axis of the separating hole 611 extends in the vertical direction, the caliber of the separating hole 611 is larger than the outer diameter of the body of the reaction cup 20 and smaller than the outer diameter of the flange 22, the flange 22 is in contact with the separating member 610, and then the reaction cup 20 is suspended in the separating hole 611. The number of the separation holes 611 may be one. When the separating member 610 moves to the position where the separating hole 611 corresponds to the sequencing channel 530, the separating hole 611 and the sequencing channel 530 are communicated with each other, so that the reaction cup 20 in the sequencing channel 530 can enter the separating hole 611 under the action of gravity, and the subsequent separating member 610 carries the reaction cup 20 to move to the next working position.

The fixing member 630 is fixedly disposed, the driver 641 may be a stepping motor, the driver 641 is disposed on the fixing member 630, the gear 642 is disposed on an output shaft of the driver 641, and the driver 641 may drive the gear 642 to rotate. The fixing member 630 is further provided with a slide rail extending in a horizontal direction, and the separating member 610 is slidably engaged with the slide rail such that the separating member 610 reciprocates in a linear motion in the extending direction of the slide rail. A rack 643 is fixed to the separator 610, and the rack 643 is engaged with a gear 642. When the driver 641 drives the gear 642 to rotate, the rack 643 and the gear 642 are engaged to drive the separating element 610 to reciprocate along the slide rail relative to the fixing element 630.

The first sensor 651 may be disposed on the fixing member 630, and when the separation hole 611 faces the sequencing channel 530 to communicate with the sequencing channel 530, the first sensor 651 sends a feedback message to indicate that the separating member 610 has slid in place, thereby stopping the sliding of the separating member 610 with respect to the fixing member 630. After the reaction cups 20 from the sequencing channel 530 are received in the separation hole 611, the second sensor 652 can detect the presence of the reaction cups 20 in the separation hole 611 and send a feedback message, and at this time, the driver 641 can be controlled to drive the separating member 610 to slide relative to the fixing member 630, so as to move the reaction cups 20 to the next working position.

The elastic member 620 is connected with the separating member 610, the elastic member 620 is located beside the separating hole 611, and the orthographic projection of the elastic member 620 on the separating member 610 is located outside the separating hole 611, so as to prevent the elastic member 620 from shielding the separating hole 611, and ensure that the reaction cups 20 in the sequencing channel 530 can smoothly enter the separating hole 611. During the process of the separating member 610 driving the reaction cups 20 away from the sequencing channel 530, the elastic member 620 exerts a resisting force to move the reaction cups 20 in the sequencing channel 530 away from the separating member 610. For example, the elastic member 620 may be a cylindrical spring, a conical spring, a resilient plate, or the like. The elastic member 620 has a fixed end fixedly coupled to the separating member 610 and a free end for pressing against the reaction cups 20 in the sequencing channel 530.

In operation, first, the driver 641 drives the separating element 610 to move, so that the separating hole 611 on the separating element 610 faces the sequencing channel 530, and the reaction cup 20 in the sequencing channel 530 is ensured to smoothly enter the separating hole 611. Then, the driver 641 drives the separating member 610 to move rightward, so that the separating hole 611 moves away from the sorting channel 530. When the separation holes 611 and the sequencing channel 530 are completely staggered, the separation pieces 610 block the output port of the sequencing channel 530, and effectively prevent the reaction cups 20 in the sequencing channel 530 from outputting. In the process that the elastic member 620 moves to the right along with the separating member 610, when the elastic member 620 passes through the sequencing channel 530, in view of the certain length and elasticity of the elastic member 620, the elastic member 620 compresses and applies an upward pressing force to the reaction cups 20 abutting against the separating member 610, so that the reaction cups 20 in the sequencing channel 530 can be reordered under the action of the pressing force, for example, the reaction cups 20 in the horizontal state can be converted into the vertical state, the phenomena of cup crossing and cup blocking of the reaction cups 20 in the sequencing channel 530 are prevented, the reaction cups 20 are ensured to run in the sequencing channel 530 in order, and the reliability and the working efficiency of the feeding device 10 for conveying the reaction cups 20 are further improved. Meanwhile, the elastic member 620 has a simple structure and a low cost, so that it is possible to prevent the structure from being complicated and increase the manufacturing cost while ensuring the reliability of the feeding device 10. In the case that the total stroke of the separating member 610 moving to the right is small, the elastic member 620 may always press the reaction cup 20 in the sequencing channel 530. In the case that the total stroke of the separation member 610 moving to the right is large, the reaction cups 20 in the sequencing channel 530 are all in the vertical state due to the pressing force of the elastic member 620 and the reaction cups 20 for a certain time. When the separating member 610 moves to the right to the set position, the elastic member 620 may not be pressed against the reaction cups 20 in the sequencing channel 530. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A cup separating mechanism is used in cooperation with a first limiting part and a second limiting part, wherein a conveying channel is formed at intervals between the first limiting part and the second limiting part, and reaction cups can move on the conveying channel under the action of self gravity; and during the process that the carrier returns from the first station to the initial station, the two blocked adjacent reaction cups start to move in sequence.

2. The cup dispensing mechanism of claim 1, wherein the cup dispensing assembly further comprises a cup dispensing module connected to the carrier, the carrier further having a second station, the cup dispensing module straddling the transfer lane to inhibit movement of the reaction cups during movement of the carrier from the home station to the first station via the second station; for two adjacent reaction cups which are blocked, when the bearing piece moves from the first station to the second station, the cup dividing module allows one reaction cup to move; when the bearing piece moves a set distance from the second station to the initial station, the cup separating module allows the other reaction cup to move.

3. A cup dispensing mechanism according to claim 2, wherein the carrier is linearly or rotationally movable between the initial station, a first station and a second station, the first station being further from the initial station than the second station.

4. The cup separating mechanism as claimed in claim 2, wherein the cup separating module comprises a fixed rod and a sliding rod arranged at an interval, the bearing member has a first surface facing the conveying channel in the thickness direction, the bearing member is provided with a sliding hole penetrating the whole bearing member and having an opening on the first surface, the sliding rod is in sliding fit with the sliding hole, the sliding rod is located in front of the fixed rod with reference to the moving direction of the reaction cup in the conveying channel; the sliding rod is longer than the protruding length of the fixed rod relative to the first surface at the initial station; during the process that the carrier moves from the second station to the first station, the sliding rod slides and reduces the protruding length relative to the first surface not less than the width of the conveying channel.

5. The cup dispensing mechanism of claim 4, further comprising a stop member, wherein the bearing member is located on a side where the first retaining member is located, the first surface faces the first retaining member, and the stop member is located on a side where the second retaining member is located, the stop member being capable of abutting against the slide bar to slide the slide bar relative to the bearing member.

6. The cup dispensing mechanism of claim 4, wherein, at the initial station, the difference between the projection lengths of the sliding rod and the fixed rod relative to the first surface is equal to half of the width of the conveying channel; during the movement of the carrier from the second station to the first station, the sliding bar has a reduced protruding length relative to the first surface equal to the width of the transport path.

7. The cup dispensing mechanism of claim 4, further comprising an abutment that presses against the sliding bar and urges the sliding bar to slide relative to the carrier to reposition the carrier during the return of the carrier from the second station to the initial station.

8. The cup dispensing mechanism of claim 4, wherein said sliding rod comprises a thick rod section and a thin rod section connected to each other, said thick rod section having a larger cross-sectional dimension than said thin rod section, said thin rod section being in sliding engagement with said sliding hole, said thick rod section being located outside said sliding hole.

9. The cup dispensing mechanism of claim 4, further comprising at least one of:

in the initial station, the orthographic projection of the end part of the sliding rod along the gravity direction falls on the edge of the conveying channel;

the fixed rod and the sliding rod are both located outside the conveying channel.

10. A feeder device, characterized by comprising a cup dispensing mechanism according to any one of claims 1 to 9.

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