CN215286944U - Reaction tube feeding mechanism - Google Patents

Abstract

The utility model discloses a reaction tube feeding mechanism, which comprises a hopper, wherein the bottom of the inner cavity of the hopper is provided with a mounting hole, a material pushing plate is arranged in the mounting hole in a sliding manner, and the lower end of the hopper is provided with a driving component for driving the material pushing plate to move up and down; the upper end of the material pushing plate is provided with a containing groove for containing the reaction tube, and the upper end surface of the containing groove is an inclined surface which is inclined outwards along the inner part of the hopper; when the material pushing plate moves downwards to the lowest point, the reaction tubes in the hopper enter the accommodating groove and are vertically arranged, and the limiting lugs on the outer side wall of the upper end of each reaction tube are abutted against the upper end surface of the accommodating groove; when the material pushing plate rises to a first preset height, the reaction tube in the containing groove slides along the inclined surface and is conveyed to the next station. The utility model discloses a reaction tube feed mechanism, simple structure, it is efficient, degree of automation is high.

Description

Reaction tube feeding mechanism

Technical Field

The utility model belongs to the technical field of the medical treatment inspection instrument technique and specifically relates to a reaction tube feed mechanism.

Background

In the medical examination instrument in the in vitro diagnosis industry, the reaction tube is an indispensable container for storing biological samples and carrying out reaction tests and detection processes. With the progress of the technology, the requirement on the detection efficiency is higher and higher, in the streamline detection process, the traditional reaction tube feeding mode is that the reaction tube is manually stacked on a carrier and then is transferred to the following work flow by a manipulator, the physical consumption of an operator is large, the automation degree is not high, and the final feeding efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects of the prior art, the reaction tube feeding mechanism is simple in structure, high in efficiency and high in automation degree.

The utility model adopts the technical proposal that: the reaction tube feeding mechanism comprises a hopper, wherein a mounting hole is formed in the bottom of an inner cavity of the hopper, a material pushing plate is arranged in the mounting hole in a sliding mode, and a driving assembly used for driving the material pushing plate to move up and down is arranged at the lower end of the hopper; the upper end of the material pushing plate is provided with a containing groove for containing the reaction tube, and the upper end surface of the containing groove is an inclined surface which is inclined outwards along the inner part of the hopper; when the material pushing plate moves downwards to the lowest point, the reaction tubes in the hopper enter the accommodating groove and are vertically arranged, and the limiting lugs on the outer side wall of the upper end of each reaction tube are abutted against the upper end face of the accommodating groove; when the material pushing plate rises to a first preset height, the reaction tube in the containing groove slides along the inclined surface and is conveyed to the next station.

Compared with the prior art, the utility model has the following advantage:

in the reaction tube feeding mechanism of the utility model, the material pushing plate which moves up and down is arranged in the hopper, the upper end of the material pushing plate is provided with the accommodating groove, and the upper end surface of the accommodating groove is an inclined surface which is inclined outwards along the inner part of the hopper; after setting up like this, through the continuous up-and-down motion of scraping wings, be equivalent to a stirring mechanism, make the reaction tube in the hopper keep random state, the reaction tube is more along with the direction inclined plane gets into in the storage tank of scraping wings upper end, and when the scraping wings rose to predetermined position, the reaction tube in the storage tank can be along with inclined plane automatically sliding to next station, through the continuous activity from top to bottom of scraping wings, realize the continuous output of reaction tube, do not need artifical blowing at this in-process, whole material loading process automation is exported, high work efficiency.

As an improvement, two baffles which are parallel to each other are arranged in an inner cavity of the hopper, and a gap is reserved between the two baffles to form a sliding channel communicated with the mounting hole; the material pushing plate is in sliding fit in the sliding channel, and a feeding through hole communicated with the inner cavity of the hopper is formed in the side wall of the lower end of the sliding channel.

In another improvement, the lower end of the inner cavity of the hopper is provided with a guide inclined surface which inclines towards the mounting hole from top to bottom. In the secondary improved structure, a corresponding guide inclined plane is arranged, when the material pushing plate is positioned at the lowest point, the reaction tube at the lower end of the inner cavity of the hopper can better automatically slide to the accommodating groove at the upper end of the material pushing plate, and other auxiliary pushing mechanisms are not needed.

The improved structure is characterized in that a discharging hole is formed in the side wall of the hopper, and the lower end of the accommodating groove is communicated with the discharging hole; an error correction assembly is arranged on the side wall of the hopper corresponding to the discharge hole, and when the reaction tube does not slide to the discharge hole in an upright state with an upward opening, the reaction tube cannot pass through the discharge hole; the driving assembly drives the material pushing plate to ascend to a second preset height, and the error correction assembly is used for driving the staggered reaction tubes to return to the hopper. In this improved structure, set up the error correction subassembly, guarantee from each reaction tube of discharge opening output all with opening upright direction output to next station, need not carry out the adjustment of the position of reaction tube angle, raise the efficiency.

Preferably, the error correction assembly comprises a shifting sheet and a first driving motor, the first driving motor is mounted on the outer side wall of the hopper, an output shaft of the first driving motor is connected with a first eccentric wheel, the first eccentric wheel is provided with a first connecting rod, one end of the shifting sheet is provided with a waist-shaped sliding groove, the first connecting rod is in sliding fit in the waist-shaped sliding groove, and the other end of the shifting sheet is hinged to the upper end of the discharge hole; the shifting piece is provided with a convex plate, and the convex plate is in sliding fit with the discharge hole.

And the upper end of the sliding channel is provided with limiting flanges on two sides of the channel, and a blanking notch is formed in one end, close to the discharge hole, of each limiting flange.

In a further improvement, a feeding chute which inclines downwards is arranged on the outer side wall of the hopper corresponding to the discharge hole, and one end of the high position of the feeding chute passes through the discharge hole and is attached to one end of the sliding channel; and the feeding chute is also provided with an inductor for inducing the reaction tube, and the inductor is in signal connection with the driving assembly.

And the driving assembly comprises a mounting seat, a second driving motor is arranged on the mounting seat, a second eccentric wheel is connected to an output shaft of the second driving motor, a second connecting rod is arranged on the second eccentric wheel, a horizontally arranged long waist shape is arranged at the lower end of the material pushing plate, and the second connecting rod is in sliding fit in the long waist hole. The reciprocating up-and-down motion of the material pushing plate is realized by the combination of the circumferential rotation of the motor and the driving action of the eccentric wheel, the structure is simple, and the driving is stable.

In a further improvement, a coded disc is further arranged on an output shaft of the second driving motor, two notches are formed in the outer edge of the coded disc along the circumferential direction, a coded disc optical coupler is arranged on the mounting seat, and the coded disc optical coupler is in signal connection with the second driving motor and the inductor; when the coded disc is rotated to enable the two notches to rotate into the detection grooves of the coded disc optocoupler respectively, the material pushing plate is correspondingly kept at a first preset height or a second preset height.

Drawings

Fig. 1 is a schematic structural diagram of a feeding mechanism of the reaction tube of the present invention.

Fig. 2 is a cross-sectional view of the reaction tube feeding mechanism of the present invention perpendicular to the direction of the material pushing plate.

Fig. 3 is a cross-sectional view of the reaction tube feeding mechanism of the present invention parallel to the direction of the material pushing plate.

Fig. 4 is a schematic structural diagram of another operating state of the reaction tube feeding mechanism of the present invention.

Fig. 5 is a cross-sectional view taken parallel to the ejector plate in fig. 4. (the stripper plate is at a first predetermined height)

Fig. 6 is a cross-sectional view taken parallel to the ejector plate in fig. 4. (the stripper plate is at a second predetermined height)

Fig. 7 is a schematic structural diagram of a driving assembly portion in the present invention.

Fig. 8 is a schematic structural diagram of a code wheel in the present invention.

Fig. 9 is an enlarged schematic diagram at X in fig. 2.

Wherein, 1-hopper, 1.1-discharge hole, 2-mounting hole, 3-guide slope, 4-material pushing plate, 4.1-containing groove, 4.2-long waist hole, 5-baffle, 6-sliding channel, 6.1-feeding through hole, 7-shifting plate, 7.1-waist type chute, 8-first driving motor, 9-convex plate, 10-first eccentric wheel, 11-first connecting rod, 12-limit baffle, 12.1-blanking gap, 13-feeding chute, 14-inductor, 15-mounting seat, 16-second driving motor, 17-second eccentric wheel, 18-second connecting rod, 19-code disc, 19.1-gap, 20-optical coupling code disc.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it should be noted that the terms "bottom", "upper and lower", "upper end", "outer side wall", "lower end", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, the terms "first" and "second" are used for convenience of description and distinction, and have no specific meaning.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the reaction tube feeding mechanism provided by the present invention comprises a hopper 1 with an upper opening, a mounting hole 2 is provided at the bottom of the inner cavity of the hopper 1, a material pushing plate 4 is slidably provided in the mounting hole 2, and a driving assembly for driving the material pushing plate 4 to slide up and down is provided at the lower end of the hopper 1; in this embodiment, specifically, the driving assembly includes a mounting seat 15, a second driving motor 16 is mounted on a side wall of an upper end of the mounting seat 15, an output shaft of the second driving motor 16 is connected with a second eccentric wheel 17, the second eccentric wheel 17 is provided with a second connecting rod 18, a horizontally arranged long waist-shaped hole 4.2 is arranged at a lower end of the material pushing plate 4, and the second connecting rod 18 is fitted in the long waist-shaped hole 4.2. In the structure, the pushing plate 4 can continuously move up and down through the circumferential rotation of the second eccentric wheel 17.

The upper end of the material pushing plate 4 is provided with a containing groove 4.1 for containing the reaction tube 100, and the lower end of the inner cavity of the hopper 1 is provided with a guide inclined plane 3 which is inclined towards the mounting hole 2 from top to bottom; in the structure, the guide inclined plane 3 is arranged to enable the reaction tube 100 in the hopper 1 to automatically slide to the accommodating groove 4.1 along the guide inclined plane 3 under the action of self gravity; moreover, a discharge hole 1.1 is arranged on the side wall of the hopper 1, and the upper end surface of the accommodating groove 4.1 is an inclined surface which is inclined outwards along the inner part of the hopper; when the material pushing plate 4 moves downwards to the lowest point, the reaction tubes 100 in the hopper 1 enter the accommodating groove 4.1 and are vertically arranged under the action of the gravity of the tube body, and the limiting lugs 101 on the outer side wall of the upper end of the reaction tubes 100 are abutted against the upper end surface of the accommodating groove 4.1, as shown in fig. 9; when the material pushing plate 4 rises to the first predetermined height position, the lower end of the containing groove 4.1 corresponds to the discharge hole 1.1, so that the reaction tube 100 in the containing groove 4.1 slides through the discharge hole 1.1 and is conveyed to the next station. In this structure, the inclination angle of the upper end surface of the accommodating groove 4.1 is 25 ° to 30 °, and in this embodiment, the inclination angle is preferably 25 °.

In order to ensure that the reaction tube 100 in the containing groove 4.1 can be kept stable in the ascending process of the material pushing plate 4, two baffle plates 5 which are parallel to each other are arranged in the inner cavity of the hopper 1, and a gap is reserved between the two baffle plates 5 to form a sliding channel 6 communicated with the mounting hole 2; the material pushing plate 4 is in sliding fit in the sliding channel 6, and a feeding through hole 6.1 communicated with the inner cavity of the hopper 1 is formed in the side wall of the lower end of the sliding channel 6. In this embodiment, the mounting hole 2 is disposed at the center of the bottom of the inner cavity of the hopper 1, the guide inclined planes 3 are disposed on two sides of the inner cavity of the hopper 2, and the two guide inclined planes 3 are inclined toward the position of the mounting hole 2, so that after the arrangement, when the material pushing plate 4 in the mounting hole 2 is lowered to the lowest point, the upper end surface of the material pushing plate 4 is parallel to the lowest point of the bottom of the inner cavity of the hopper 1, the reaction tube 100 at the lower end of the hopper 1 passes through the feeding through hole 6.2 under the guiding action along the guide inclined planes 3 to enter the accommodating groove 4.1, and is arranged along the upward vertical direction of the opening under the action of the gravity center adjustment of the reaction tube 100, and the limit lug 101 on the upper end side wall of each reaction tube 100 abuts against the upper end surface of the accommodating groove 4.1.

In this embodiment, an error correction component is further disposed on the sidewall of the hopper 1 at a position corresponding to the discharge hole 1.1, and when the reaction tube 100 slides to the discharge hole 1.1 in an upright state with an upward opening, the reaction tube 100 can pass through the discharge hole 1.1 to output a material, as shown in fig. 3; when the reaction tube 100 is not slid to the discharge hole 1.1 in the upright state with the opening facing upward, the misaligned reaction tube 100 cannot pass through the discharge hole 1.1, and the error correction assembly is used to drive the misaligned reaction tube 100 back into the hopper 1.

Specifically, the error correction assembly comprises a shifting sheet 7 and a first driving motor 8, the first driving motor 8 is installed on the outer side wall of the hopper 1, one end of the shifting sheet 7 is hinged to the side wall of the hopper 1, and the other end of the shifting sheet 7 is connected with an output shaft of the first driving motor 8; the shifting sheet 7 is provided with a convex plate 9, and the convex plate 9 is in sliding fit with the upper end of the discharge hole 1.1. On the other hand, in order to improve the continuity of the reciprocating motion of the plectrum 7, a first eccentric wheel 10 is arranged on an output shaft of the first driving motor 8, a first connecting rod 11 is arranged on the first eccentric wheel 10, a waist-shaped chute 7.1 is arranged on the plectrum 7, the first connecting rod 11 is in sliding fit in the waist-shaped chute 7.1, the first driving motor 8 drives the first eccentric wheel 10 to rotate circumferentially to drive the first connecting rod 11 to reciprocate between the waist-shaped chutes 7.1, so that the convex plate 9 swings back and forth at the upper end of the discharge hole 1.1 along the sliding direction of the reaction tube.

The upper end of the sliding channel 6 is provided with limiting flanges 12 at two sides of the channel, and a blanking gap 12.1 is arranged at one end of each limiting flange 12 close to the discharge hole 1.1.

On the other hand, in order to further ensure that the reaction tube 100 stably outputs the material to the next station, a downward inclined feeding chute 13 is arranged on the outer side wall of the hopper 1, and one end of the feeding chute 13 at the high position passes through the discharging hole 1.1 and is attached to one end of the sliding channel 6 at the low position; and the feeding chute 13 is also provided with a sensor 14 for sensing the reaction tube 100, and the sensor 14 is in signal connection with the driving assembly. In the structure, in order to further improve the automatic control effect, the output shaft of the second driving motor 16 is further provided with a coded disc 19, the outer edge of the coded disc 19 is circumferentially provided with two notches 19.1, a coded disc optical coupler 20 is arranged on the mounting seat 15, as shown in fig. 7 and 8, and the coded disc optical coupler 20 is in signal connection with the second driving motor 16 and the inductor 14; when the coded disc 19 is rotated to enable the two notches 19.1 to rotate into the detection grooves of the coded disc optocoupler 20 respectively, the material pushing plate 4 is correspondingly kept at a first preset height or a second preset height.

As shown in fig. 1 and 3, when the material pushing plate 4 rises to the first predetermined height position, and each reaction tube 100 in the accommodating groove 4.1 at the upper end of the material pushing plate 4 is slid and output in the upright state with the opening facing upward, the upper end of the reaction tube 100 can just pass through the discharge hole 1.1, so that the automatic feeding of the reaction tube 100 is realized.

The working principle of the error correction component is as follows:

as shown in fig. 4 and 5, the material pushing plate 4 is lifted to a first preset height position, at this time, one of the notches 19.1 on the code wheel 19 is located in the detection slot of the code wheel optocoupler 20, and at this time, there is a dislocated reaction tube 100 in a horizontal state at the upper end of the material pushing plate 4, at this time, due to the limiting action of the limiting lug 101 on the side wall of the reaction tube 100, the reaction tube 100 is blocked on the side wall of the inner cavity of the hopper 1 near the discharge hole 1.1, at this time, the sensor 14 cannot detect that the reaction tube 100 passes through, the second driving motor 16 continues to rotate until another notch 19.1 on the code wheel 19 rotates into the detection slot of the code wheel optocoupler 20, the second driving motor 19 stops, at this time, the material pushing plate 4 is located at a second preset height position, as shown in fig. 6, then the first driving motor 8 operates to drive the shifting plate 7 to rotate, so that the convex plate 9 on the shifting plate 7 pushes the horizontal reaction tube 100 to move towards one end of the inner cavity of the hopper 1, because the blanking gap 12.1 is arranged at one end of the upper end of the sliding channel 6 close to the discharge hole 1.1, the reaction tube 100 after reverse movement rolls from the upper end of the material pushing plate 4 into the inner cavity of the hopper 1, thereby realizing the removal of the dislocation reaction tube 100 and ensuring that the reaction tube 100 output each time is output in the correct vertical direction.

In this structure, when a plurality of reaction tubes 100 are stacked or inverted, the reaction tubes 100 which are not positioned in the correct direction can not pass through the discharge hole 1.1 smoothly, and the error correction assembly can discharge materials.

In addition, in the structure, the driving assembly drives the material pushing plate 4 to move up and down continuously, which is equivalent to a material stirring mechanism, so that the reaction tubes 100 in the hopper 1 are kept in a random state, the reaction tubes 100 can enter the accommodating groove 4.1 at the upper end of the material pushing plate along with the guide inclined plane 3 more easily, and the material loading rate is improved; in addition, in the embodiment, the material pushing plate 4 is made of POM material, so that the surface smoothness is good.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims (9)

1. The utility model provides a reaction tube feed mechanism which characterized in that: the material pushing device comprises a hopper (1), wherein a mounting hole (2) is formed in the bottom of an inner cavity of the hopper (1), a material pushing plate (4) is arranged in the mounting hole (2) in a sliding mode, and a driving assembly used for driving the material pushing plate (4) to move up and down is arranged at the lower end of the hopper (1); the upper end of the material pushing plate (4) is provided with a containing groove (4.1) for containing the reaction tube (100), and the upper end surface of the containing groove (4.1) is an inclined surface which is obliquely arranged outwards along the interior of the hopper (1);

when the material pushing plate (4) moves downwards to the lowest point, the reaction tubes (100) in the hopper (1) enter the accommodating groove (4.1) and are vertically arranged, and the limiting lugs (101) on the outer side wall of the upper end of the reaction tubes (100) are abutted against the upper end surface of the accommodating groove (4.1); when the material pushing plate (4) rises to a first preset height, the reaction tube (100) in the containing groove (4.1) is conveyed to the next station along the inclined surface in a sliding manner.

2. The reaction tube feeding mechanism according to claim 1, wherein: two baffle plates (5) which are parallel to each other are arranged in the inner cavity of the hopper (1), and a gap is reserved between the two baffle plates (5) to form a sliding channel (6) which is communicated with the mounting hole (2); the material pushing plate (4) is in sliding fit in the sliding channel (6), and a feeding through hole (6.1) communicated with the inner cavity of the hopper (1) is formed in the side wall of the lower end of the sliding channel (6).

3. The reaction tube feeding mechanism according to claim 2, wherein: the lower end of the inner cavity of the hopper (1) is provided with a guide inclined plane (3) which inclines towards the mounting hole (2) from top to bottom.

4. The reaction tube feeding mechanism according to claim 2, wherein: a discharge hole (1.1) is formed in the side wall of the hopper (1), and the lower end of the accommodating groove (4.1) is communicated with the discharge hole (1.1); an error correction component is arranged on the side wall of the hopper (1) at a position corresponding to the discharge hole (1.1), and when the reaction tube (100) does not slide to the discharge hole (1.1) in a vertical state with an upward opening, the reaction tube (100) cannot pass through the discharge hole (1.1); the driving assembly drives the material pushing plate (4) to ascend to a second preset height, and the error correction assembly is used for driving the staggered reaction tubes (100) to return to the hopper (1).

5. The reaction tube feeding mechanism according to claim 4, wherein: the error correction assembly comprises a shifting sheet (7) and a first driving motor (8), the first driving motor (8) is installed on the outer side wall of the hopper (1), an output shaft of the first driving motor (8) is connected with a first eccentric wheel (10), a first connecting rod (11) is arranged on the first eccentric wheel (10), a waist-shaped sliding groove (7.1) is formed in one end of the shifting sheet (7), the first connecting rod (11) is in sliding fit in the waist-shaped sliding groove (7.1), and the other end of the shifting sheet (7) is hinged to the upper end of the discharge hole (1.1); the poking sheet (7) is provided with a convex plate (9), and the convex plate (9) is in sliding fit with the discharge hole (1.1).

6. The reaction tube feeding mechanism according to claim 4, wherein: both sides of the upper end of the sliding channel (6) are provided with limiting flanges (12), and one end, close to the discharge hole (1.1), of each limiting flange (12) is provided with a blanking notch (12.1).

7. The reaction tube feeding mechanism according to claim 4, wherein: a feeding chute (13) which inclines downwards is arranged on the outer side wall of the hopper (1) at a position corresponding to the discharge hole (1.1), and one end of the high position of the feeding chute (13) passes through the discharge hole (1.1) and is attached to one end of the sliding channel (6); and an inductor (14) for inducing the reaction tube (100) is also arranged on the feeding chute (13), and the inductor (14) is in signal connection with the driving assembly.

8. The reaction tube feeding mechanism according to claim 7, wherein: the driving assembly comprises a mounting seat (15), a second driving motor (16) is arranged on the mounting seat (15), a second eccentric wheel (17) is connected to an output shaft of the second driving motor (16), a second connecting rod (18) is arranged on the second eccentric wheel (17), a long waist hole (4.2) which is horizontally arranged is formed in the lower end of the material pushing plate (4), and the second connecting rod (18) is in sliding fit with the long waist hole (4.2).

9. The reaction tube feeding mechanism according to claim 8, wherein: a coded disc (19) is further arranged on an output shaft of the second driving motor (16), two notches (19.1) are formed in the outer edge of the coded disc (19) along the circumferential direction, a coded disc optical coupler (20) is arranged on the mounting seat (15), and the coded disc optical coupler (20) is in signal connection with the second driving motor (16) and the inductor (14); when the coded disc (19) is rotated to enable the two notches (19.1) to rotate into the detection grooves of the coded disc optocoupler (20), the material pushing plate (4) is correspondingly kept at a first preset height or a second preset height.

Images