Nesting device and method for pre-filling needle

Abstract

The invention discloses a pre-filling needle nesting device and method, and relates to the technical field of pharmaceutical equipment.The pre-filling needle nesting device comprises a conveying auger, a first barrier is arranged above the conveying auger, a second barrier is arranged on one side of the first barrier, a pre-filling needle conveying channel is formed between the first barrier and the second barrier, and a pre-filling needle transferring mechanism is arranged on one side of the pre-filling needle conveying channel; a nest box conveying channel is arranged on the other side of the pre-filling needle conveying channel, a nest box positioning mechanism is arranged on the nest box conveying channel, a pre-filling needle jacking and positioning mechanism is arranged at the bottom of the pre-filling needle conveying channel, and the pre-filling needle jacking and positioning mechanism comprises a positioning groove used for containing the end of a pre-filling needle; according to the pre-filling needle nesting method, pre-filling needle nesting is achieved by controlling starting, stopping and running of the first conveying auger, the second conveying auger, the pre-filling needle transferring mechanism, the nest box positioning mechanism and the pre-filling needle jacking positioning mechanism. The pre-filling needle nesting device and the pre-filling needle nesting method have the advantages of reasonable layout and high production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of pharmaceutical equipment, and in particular relates to a method for inserting a pre-filled needle into a nest. Background Art

[0002] In a prefilled needle nesting device, objects such as syringes, vials and other similar vessels need to be inserted in an orderly manner into a container having a housing for receiving the objects.

[0003] A Chinese patent application with application number CN202280053482.X discloses a centering device, including a filling unit of the centering device and a filling method using the centering device, the centering device including a plate body, the plate body being circumferentially defined by a first edge and a second edge oriented toward the outside of the plate body and opposite to each other in a reference direction, wherein the first edge defines a plurality of first recesses, the second edge defines a plurality of second recesses, and each of the first recesses and the second recesses is used to receive a corresponding one of the objects. The plate body is arranged above the pre-filling needle, which may interfere with the laminar flow environment and there is a risk of contamination after the laminar flow is disturbed; the filling unit includes a driving device, which is configured to move the container relative to the centering device and below the centering device and in the operating area. The movement of the container in the above-mentioned operating area occurs in two directions of the reference direction X, so as to allow any series of shells of the container to be aligned with the first recess or the second recess and to remove the object from the recess in the manner previously described. The driving device includes a tray for supporting the container, which is motorized along the guide rail to translate according to the reference direction X. The container to be filled is picked up from the storage area and brought into the operating area by the loading device, which also moves the filled container from the operating area to the storage area. The layout space of the above-mentioned filling unit is not compact enough, the overall structure is bloated, the cost is relatively much higher, and the nest plate needs to be filled before the nest plate is placed in the nest box, and the movement continuity is poor.

[0004] The Chinese patent application scheme with application number CN202221209361.3 discloses an automatic nesting device for pre-filled syringes. The arranging and transporting mechanism is used to receive the pre-filled syringes at the channel and transport the arranged pre-filled syringes to the carrier plate at the nesting station. The discharging mechanism 31 includes a first moving device and a rotating device. The rotating device moves along the X-axis direction of the frame 1 under the drive of the first moving device. The output end of the rotating device has a rotating shaft, which rotates under the drive of the rotating device. The arranging frame is connected to the rotating shaft. The arranging frame rotates under the drive of the rotating device to allow the pre-filled syringes at the receiving opening to transition to the bayonet at the transport carrier plate. The above-mentioned nesting device and the nesting method in which a single pre-filled syringe enters the rotating device in turn are inefficient and have a greater risk of bottle jamming.

[0005] The Chinese patent application with application number CN202121930422.0 discloses a prefilled syringe lifting device. When the prefilled syringe lifting device is applied to the nesting machine, after the prefilled syringe conveyed by the auger is in place, the top plate lifts the prefilled syringe, and the manipulator clamps and fixes the prefilled syringe and inserts it into the nesting plate. In the above-mentioned nesting return scheme, there is a risk of damage to the end of the prefilled syringe by the top plate. Secondly, the auger and the top plate are staggered, and the spatial layout is not compact enough. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a pre-filling needle nesting device with a reasonable layout, simple and compact structure, and an efficient and accurate pre-filling needle nesting method.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A pre-filled needle nesting device comprises a conveying auger, a first fence is provided above the conveying auger, a second fence is provided on one side of the first fence, a pre-filled needle conveying channel is formed between the first fence and the second fence, a pre-filled needle transfer mechanism is provided on one side of the pre-filled needle conveying channel, a nest box conveying channel is provided on the other side of the pre-filled needle conveying channel, a nest box positioning mechanism is provided on the nest box conveying channel, a pre-filled needle lifting and positioning mechanism is provided at the bottom of the pre-filled needle conveying channel, the pre-filled needle lifting and positioning mechanism comprises a positioning groove for accommodating the end of the pre-filled needle to achieve precise positioning, the overall layout is reasonable, and the structure is simple and compact.

[0009] As a further improvement of the above technical solution:

[0010] The conveying auger includes a first conveying auger and a second conveying auger. The first conveying auger is connected to the pre-filled needle conveying chute. The first conveying auger is connected to the first servo drive mechanism, and the second conveying auger is connected to the second servo drive mechanism to achieve precise positioning and smooth conveying.

[0011] A pre-filling needle in-place sensor is provided on the side of the first conveying auger close to the second conveying auger. The pre-filling needle in-place sensor is arranged on the first conveying auger and is at least one station away from the second conveying auger to ensure the rest time of the second conveying auger when unloading materials and to ensure that there is no shortage of materials on the second conveying auger.

[0012] The positioning groove is trumpet-shaped and is used to accommodate the side wall of the end of the prefilling needle to achieve precise positioning while avoiding damage to the prefilling needle.

[0013] The pre-filling needle conveying slide rail is S-shaped, and a conveying dial wheel is provided under the pre-filling needle conveying slide rail. The structure is simple and compact, which can avoid damage to the pre-filling needle and achieve rapid discharge while avoiding interference with the rear end.

[0014] A collection trough is provided on one side of the pre-filling needle conveying chute, and a collection box or a detachable sampling mold docking with the collection trough is used for sampling and kicking waste from the front-end equipment.

[0015] A box pushing mechanism is also provided on one side of the nest box conveying passage, and the nest box positioning mechanism comprises a positioning rod for clamping the nest plate and a box blocking assembly for blocking the nest box, so as to realize the conveying and positioning of the nest box.

[0016] The nest box positioning mechanism is arranged on one side of the second conveying auger, the pre-filling needle lifting and positioning mechanism includes a lifting drive mechanism and a positioning member, the positioning member is provided with a positioning groove, the lifting drive mechanism is arranged on one side of the first conveying auger, the positioning member is arranged below the pre-filling needle conveying channel, the lifting drive mechanism and the positioning member are connected by a connecting rod, and the structural layout is compact.

[0017] The box entry end of the nest box conveying channel is connected to the pre-filled filling host through the box conveying channel. The box conveying channel is connected to the first lifting channel, the transverse conveying channel and the second lifting channel. An inspection channel is formed below the transverse conveying channel. The layout is reasonable. The inspection channel is convenient for personnel to pass through and operate the pre-filled filling host at the front end. At the same time, the box conveying channel can cache excess nest boxes.

[0018] A method for inserting a pre-filling needle into a nest comprises the pre-filling needle inserting device as described above, wherein a nest box positioning mechanism positions the nest box and a first conveying auger operates; during the operation of the first conveying auger, when the pre-filling needle in-place sensor detects the presence of a bottle, the second conveying auger operates according to the acceleration cam curve, and after the operation is set, it switches to the operation cam curve, if the pre-filling needle in-place sensor continues to detect the presence of a bottle, the second conveying auger operates according to the operation cam curve, if the pre-filling needle in-place sensor detects the absence of a bottle, the second conveying auger operates according to the deceleration cam curve; the first conveying auger and the second conveying auger operate, and after the operation is set, the first conveying auger and the second conveying auger stop operating, the pre-filling needle lifting and positioning mechanism lifts and positions the pre-filling needle, and after the pre-filling needle transport mechanism transports the pre-filling needle, the first conveying auger and the second conveying auger continue to operate; when the discharge amount of the pre-filling needle transport mechanism is greater than or equal to the set value, the nest box positioning mechanism releases the box, the box pushing mechanism pushes the next nest box to move, and the nest box positioning mechanism positions the next nest box.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The present invention provides a prefilling needle nesting device, wherein the flange at the upper end of the prefilling needle bottle is suspended between the first fence and the second fence, and the conveying auger continuously conveys the prefilling needle in the prefilling needle conveying channel, and then the prefilling needle lifting and positioning mechanism positions and lifts the prefilling needle, the nest box positioning mechanism positions the nest box and the nest plate in the nest box, and the prefilling needle is transported to the nest plate by the prefilling needle transport mechanism to complete the nesting of the prefilling needle. The prefilling needle lifting and positioning mechanism is arranged at the bottom of the prefilling needle conveying channel, the nest box positioning mechanism is arranged on the nest box conveying channel, and the nest box conveying channel and the prefilling needle transport mechanism are respectively arranged on both sides of the prefilling needle conveying channel. The overall layout is reasonable and the structure is more compact; the conveying auger realizes rough positioning of the prefilling needle, and the positioning groove realizes precise positioning of the prefilling needle, which is convenient for the prefilling needle transport mechanism to grab and complete the rapid transport of the prefilling needle. During the lifting process, the end of the prefilling needle is accommodated in the positioning groove, and the positioning groove clamps the side wall of the end of the prefilling needle to prevent the needle tip and the cap of the end of the prefilling needle from being damaged during the lifting process. The conveying auger continuously conveys the pre-filled needles, and the pre-filled needle transfer mechanism places the pre-filled needles directly into the nesting plate in the nesting box. The nesting efficiency is high and continuous, and can match the speed of the front-end equipment.

[0021] The present invention provides a method for nesting pre-filled needles. The second conveying auger accelerates to start and decelerates to stop according to the signal whether there is a bottle, so as to avoid damaging the pre-filled needle. The first conveying auger and the second conveying auger can run and stop synchronously after entering the running cam curve. The program control is simple and the debugging difficulty is reduced. The second conveying auger runs according to the signal whether there is a bottle, so that the second conveying auger can discharge bottles without missing bottles. The nest box positioning mechanism and the box pushing mechanism act according to the discharge amount of the pre-filled needle transport mechanism, so as to realize efficient and accurate nesting, and ensure that the nest box is positioned when entering the nest and is transported away after being full. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a pre-filled needle nesting device of the present invention;

[0023] Figure 2 It is a cross-sectional view of a pre-filled needle nesting device of the present invention;

[0024] Figure 3 for Figure 2 A partial enlarged view of

[0025] Figure 4 It is a structural schematic diagram of a pre-filled needle nesting device connected to a pre-filled filling host according to the present invention;

[0026] Figure 5 It is a structural schematic diagram of a nest box conveying channel of a pre-filled needle nesting device of the present invention;

[0027] Figure 6 It is a structural schematic diagram of a blocking box assembly of a pre-filled needle nesting device of the present invention;

[0028] Figure 7 This is a control logic diagram of a pre-filling needle nesting method of the present invention.

[0029] The accompanying drawings of the present invention are as follows: 1. conveying auger; 2. first fence; 3. pre-filling needle conveying channel; 4. pre-filling needle transport mechanism; 5. nest box conveying channel; 6. nest box positioning mechanism; 7. pre-filling needle lifting and positioning mechanism; 8. positioning groove; 9. first conveying auger; 10. second conveying auger; 11. first servo drive mechanism; 12. second servo drive mechanism; 13. pre-filling needle conveying slide; 14. conveying dial wheel; 15. collecting trough; 16. collecting box; 17. sampling mold; 18. box pushing mechanism; 19. positioning rod; 20. box blocking assembly; 21. lifting drive mechanism; 22. positioning member; 23. connecting rod; 24. box conveying channel; 25. pre-filled filling host; 26. first lifting channel; 27. horizontal conveying channel; 28. second lifting channel; 29. ​​maintenance channel; 30. second fence; 31. pre-filling needle in place sensor. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] like Figures 1 to 6 As shown, a pre-filled needle nesting device includes a conveying auger 1, a first fence 2 is provided above the conveying auger 1, a second fence 30 is provided on one side of the first fence 2, a pre-filled needle conveying channel 3 is formed between the first fence 2 and the second fence 30, a pre-filled needle transport mechanism 4 is provided on one side of the pre-filled needle conveying channel 3, a nest box conveying channel 5 is provided on the other side of the pre-filled needle conveying channel 3, a nest box positioning mechanism 6 is provided on the nest box conveying channel 5, a pre-filled needle lifting and positioning mechanism 7 is provided at the bottom of the pre-filled needle conveying channel 3, and the pre-filled needle lifting and positioning mechanism 7 includes a positioning groove 8 for accommodating the end of the pre-filled needle, and the positioning groove 8 is trumpet-shaped.

[0033] The second fence 30 is wider than the first fence 2. The conveying auger 1 is installed below the first fence 2. The first fence 2 is narrower, which is convenient for the installation and commissioning of the conveying auger 1. The second fence 30 is set wider to support the overall bracket and be used for the installation of other structures.

[0034] The flange at the upper end of the prefilled needle bottle is suspended between the first fence 2 and the second fence 30, and the conveying auger 1 continuously conveys the prefilled needle in the prefilled needle conveying channel 3, and then the prefilled needle lifting and positioning mechanism 7 positions and lifts the prefilled needle, and the nest box positioning mechanism 6 positions the nest box and the nest plate in the nest box, and the prefilled needle is transported to the nest plate through the prefilled needle transport mechanism 4 to complete the entry of the prefilled needle into the nest. The pre-filling needle lifting and positioning mechanism 7 is arranged at the bottom of the pre-filling needle conveying channel 3, which is located at the bottom of the conveying auger 1, so as to reasonably utilize the space below and avoid widening the table in the length and width directions. A nest box positioning mechanism 6 is arranged on the nest box conveying channel 5, so as to reasonably utilize the space on the nest box conveying channel 5, and no additional nest plate positioning area is required. The nest box conveying channel 5 and the pre-filling needle transfer mechanism 4 are respectively arranged on both sides of the pre-filling needle conveying channel 3. The pre-filling needle transfer mechanism 4 is a four-axis robot with a clamp, which can clamp a row of ten pre-filling needles at a time, put them into the nest plate, and arrange them along the length direction of the pre-filling needle conveying channel 3 to avoid interference of the pre-filling needle transfer mechanism 4 with the nest box conveying channel 3. The overall layout is reasonable and the structure is more compact. The groove of the conveying auger realizes rough positioning of the pre-filling needle, and the positioning groove 8 realizes precise positioning of the pre-filling needle, which is convenient for the pre-filling needle transfer mechanism 4 to grasp and complete the rapid transfer of the pre-filling needle. During the lifting process, the end of the prefilling needle is accommodated in the positioning groove 8, and the positioning groove 8 clamps the side wall of the end of the prefilling needle to achieve precise positioning. The trumpet-shaped positioning groove 8 can guide the prefilling needle when it enters the positioning groove 8 to avoid damage to the needle tip and cap of the prefilling needle end during the lifting process. The conveying auger 1 continuously conveys the prefilling needle, and the prefilling needle transfer mechanism 7 directly puts the prefilling needle into the nesting plate in the nesting box. The nesting efficiency is high and consistent, and it can match the speed of the front-end equipment.

[0035] The conveying auger 1 includes a first conveying auger 9 and a second conveying auger 10. The first conveying auger 9 is connected to a first servo drive mechanism 11, and the second conveying auger 10 is connected to a second servo drive mechanism 12. The first conveying auger 9 is connected to a pre-filling needle conveying chute 13. A pre-filling needle in-place sensor 31 is provided on the side of the first conveying auger 9 close to the second conveying auger 10. The pre-filling needle in-place sensor 31 is arranged on the first conveying auger 9 and is at least one station away from the second conveying auger 10. The first conveying auger 9 and the second conveying auger 10 are precisely controlled to ensure that there is no missing bottle discharge. The start and stop of the second conveying auger 10 is controlled by the pre-filling needle in-place sensor 31. At least one station is reserved from the time when the pre-filling needle in-place sensor 31 detects the pre-filling needle to the time when the pre-filling needle is conveyed to the second auger 10, and sufficient time is reserved for the second conveying auger 10 to start and run to avoid damaging the pre-filling needle.

[0036] The pre-filling needle conveying slide is S-shaped, and a conveying dial 14 is provided at the bottom of the pre-filling needle conveying slide. The S-shaped pre-filling needle conveying slide can cache the pre-filling needle when the first conveying auger 9 is not started, and the slide is flatter. The pre-filling needle slides down slowly when utilizing the component of gravity to avoid overshoot and damage to the pre-filling needle. Since the S-shaped slide will lose the component of gravity at the bend, the pre-filling needle is pushed to continue to slide down through the conveying dial 14, and can cooperate with the subsequent first conveying auger 10 to discharge the material. The pre-filling needle is pushed from below by the conveying dial 14 to avoid disturbance of the laminar flow and reduce the risk of contamination.

[0037] A material collecting trough 15 is provided on one side of the prefilling needle conveying chute 13, and the material collecting trough 15 is docked with a material collecting box 16 or a detachable docking sampling mold 17 to collect waste generated by the front-end equipment and sample the samples generated by the front-end equipment.

[0038] The pre-filling needle conveying chute 13 and the collecting trough 15 are respectively connected to the discharge channel and the sampling and kicking channel of the full weighing pre-filling equipment (the whole machine is not shown in the figure), wherein the discharge channel and the sampling and kicking channel are respectively arranged on different dial wheels, and the pre-filling needle conveying chute 13 is an S-shaped slide rail, so that the discharge channel can be connected with the first conveying auger 9 and avoid the driving mechanism of the first conveying auger 9 to avoid interference, thereby reducing the width requirement of the pre-filling needle nesting device and making the overall structure more compact.

[0039] A box pushing mechanism 18 is also provided on one side of the nest box conveying passage 5. The nest box positioning mechanism 6 includes a positioning rod 19 for clamping the nest plate and a box blocking assembly 20 for blocking the nest box, so as to realize the conveying and positioning of the nest box.

[0040] Among them, the box pushing mechanism 18 is arranged on one side of the conveying dial wheel 14, and the box pushing mechanism 18 includes a box pushing driving mechanism and a pushing rod. The box pushing driving mechanism and the dial wheel driving mechanism of the conveying dial wheel 14 are installed on the same frame to ensure a compact structure. When the nest box is filled with pre-filled needles, the conveyor belt (not shown in the figure) outputs the nest box, and the box pushing mechanism pushes the next nest box to the nest box positioning mechanism 6. The blocking box assembly 20 blocks the nest box, and the positioning rod 19 is inserted into the positioning holes on both sides of the nest plate to complete the positioning. The blocking box assembly 20 can be used as follows Figure 6 The lifting plate lifting mechanism shown in the figure drives the lifting plate to lift the nest box, and on one side, another baffle lifting driving mechanism drives the baffle to block the nest box to complete the positioning. Figure 1 As shown, around the nest box, the gear lever is driven to rotate by a rotary drive mechanism to block the nest box to complete the positioning.

[0041] The nest box positioning mechanism 6 is arranged on one side of the second conveying auger 10, and the prefilling needle lifting and positioning mechanism 7 includes a lifting drive mechanism 21 and a positioning member 22. The positioning member 22 is provided with a positioning groove 8. The lifting drive mechanism 21 is arranged on one side of the first conveying auger 9. The positioning member 22 is arranged below the prefilling needle conveying channel 3. The lifting drive mechanism 21 and the positioning member 22 are connected by a connecting rod 23. The nest box positioning mechanism 6 and the prefilling needle lifting and positioning mechanism 7 are arranged on both sides of the second conveying auger 10 to reduce the moving stroke required by the prefilling needle transport mechanism 4, and the lifting drive mechanism 21 is arranged on one side of the first conveying auger, and the installation arrangement is completed by using the free position, and the structure is compact.

[0042] The box entry end of the nest box conveying channel 5 is connected to the prefilled filling host 25 through the box conveying channel 24. The box conveying channel 24 is connected to the first lifting channel 26, the transverse conveying channel 27 and the second lifting channel 28. The inspection channel 29 is formed below the transverse conveying channel 27. The layout is reasonable. The inspection channel 29 is convenient for personnel to pass through and operate the prefilled filling host 25 at the front end. The prefilled needles to be filled are placed in the nest box. Before entering the prefilled filling host 25, the prefilled needles are placed in a single row in the prefilled filling host 25 for weighing, filling and plugging through a nesting machine or other devices. The empty nest box is conveyed to the prefilled needle nesting machine through the box conveying channel 5. Since the weighing, filling and plugging process will produce unqualified bottles or samples, the assembled prefilled needles that finally return to the nest box will be less than those taken out of the nest box. The longer nest box conveying channel 5 can cache the excess nest boxes.

[0043] Example 2

[0044] A method for inserting a pre-filling needle into a nest comprises the pre-filling needle inserting device as described above, wherein a nest box positioning mechanism 6 positions a nest box, and a first conveying auger 9 operates; during the operation of the first conveying auger 9, when the pre-filling needle in-place sensor 31 detects that there is a bottle, the second conveying auger 10 operates according to the acceleration cam curve, and after the operation is set, it switches to the operation cam curve, if the pre-filling needle in-place sensor 31 continues to detect that there is a bottle, the second conveying auger 10 operates according to the operation cam curve, if the pre-filling needle in-place sensor 31 detects that there is no bottle, the second conveying auger 10 operates according to the deceleration cam curve; the first conveying auger 9 and the second conveying auger 10 operate, and after the operation is set, the first conveying auger 9 and the second conveying auger 10 stop operating, the pre-filling needle lifting positioning mechanism 7 lifts and positions the pre-filling needle, and after the pre-filling needle transport mechanism 4 transports the pre-filling needle, the first conveying auger 9 and the second conveying auger 10 continue to operate; when the discharge amount of the pre-filling needle transport mechanism 4 is greater than or equal to the set value, the nest box positioning mechanism 6 releases the box, the box pushing mechanism 18 pushes the next nest box to move, and the nest box positioning mechanism 6 positions the next nest box.

[0045] The second conveying auger 10 accelerates to start and decelerates to stop according to the bottle presence or absence signal to avoid damage to the pre-filling needle. The first conveying auger 9 and the second conveying auger 10 can run and stop synchronously after entering the running cam curve. The program control is simple and the debugging difficulty is reduced. The second conveying auger 10 runs according to the bottle presence or absence signal to ensure that the second conveying auger 10 discharges all bottles. The nest box positioning mechanism 6 and the box pushing mechanism 18 act according to the discharge amount of the pre-filling needle transfer mechanism 4 to achieve efficient and accurate nesting, ensuring that the nest box is positioned when entering the nest and is transported away after being full.

[0046] like Figure 7 A complete box loading process is shown: the pre-filling needle nesting process starts, the nest box positioning mechanism 6 positions the nest box, the first conveying auger 9 runs according to the running cam curve, the pre-filling needle enters the first conveying auger 9 through the pre-filling needle conveying chute 13, and the pre-filling needle in-place sensor 31 detects that there is a bottle. Since the pre-filling needle in-place sensor 31 is two stations away from the second conveying auger 9, it is shifted according to the detection signal, that is, two circles are counted after the bottle is detected, and the first conveying auger 9 conveys a pre-filling needle forward every time it moves to a station. The motor travels one circle for 360 degrees. It is determined that there is a bottle at the last station of the first conveying auger 9. The first conveying auger 9 runs to 320 degrees, and the second conveying auger 11 is hung in the acceleration cam Curve, within the time when the first conveying auger 9 completes the remaining 40 degrees, the second conveying auger 10 completes one circle, thereby avoiding overshoot of the pre-filling needle entering the second conveying auger 10 from the first conveying auger 9, and when the first conveying auger 9 runs to 0 degrees, the second conveying auger is hung in the normal cam curve, and the operation mode of the second conveying auger 10 is controlled according to the bottle signal. When there is a bottle, the normal cam curve is continuously run. When the sensor after the shift receives the bottle-free signal, the second conveying auger 10 is hung in the deceleration curve to avoid overshoot of the pre-filling needle in the second conveying auger 10 and damage. When there is no bottle, the second conveying auger 10 stops running through the deceleration curve to avoid vacancies of the pre-filling needle on the second conveying auger 10.

[0047] After the first conveying auger 9 starts running, it is determined whether it is the first operation, that is, if the first conveying auger 9 is running for the first time, there is no bottle on the first conveying auger 9, if it is not the first operation, the second conveying auger 10 has two pre-filling needles at the first two stations of the first conveying auger 9. Therefore, if it is the first operation, the second conveying auger needs to feed 12 bottles, instead of the first operation, the second conveying auger feeds 10 bottles, wherein the number of 10 bottles is set because the pre-filling needle nest box is usually a cube, each column has 10 pre-filling needles, and each box has 10 columns. After completing the counting of 10 bottles, the first conveying auger 9 is positioned to 0 degrees and stops, and the second conveying auger 10 stops synchronously. The main shafts of the first conveying auger 9 and the second conveying auger 10 can be hung together to achieve synchronous stop. After the second conveying auger 10 stops, the pre-filling needle lifting positioning mechanism 7 positions the pre-filling needle. After positioning in place, wait for the pre-filling needle transport mechanism 4 to complete bottle grabbing, and judge whether the pre-filling needle transport mechanism has placed the bottle 10 times. If the box is full, the nest box positioning mechanism 6 places the box, completes one pre-filling needle into the nest, and starts the positioning of the next nest box. If it is less than 10 times, the first conveying auger 9 starts running again according to the running cam curve.

[0048] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A pre-filled needle nesting device, characterized in that: The invention comprises a conveying auger (1), wherein a first fence (2) is arranged above the conveying auger (1), a second fence (30) is arranged on one side of the first fence (2), a pre-filling needle conveying channel (3) is formed between the first fence (2) and the second fence (30), a pre-filling needle transfer mechanism (4) is arranged on one side of the pre-filling needle conveying channel (3), a nest box conveying channel (5) is arranged on the other side of the pre-filling needle conveying channel (3), a nest box positioning mechanism (6) is arranged on the nest box conveying channel (5), a pre-filling needle lifting and positioning mechanism (7) is arranged at the bottom of the pre-filling needle conveying channel (3), and the pre-filling needle lifting and positioning mechanism (7) comprises a positioning groove (8) for accommodating the end of the pre-filling needle.

2. A pre-filled needle nesting device as claimed in claim 1, characterized in that: A box pushing mechanism (18) is also provided on one side of the nest box conveying channel (5); the conveying auger (1) comprises a first conveying auger (9) and a second conveying auger (10); the first conveying auger (9) is connected to a pre-filling needle conveying chute (13); the first conveying auger (9) is connected to a first servo drive mechanism (11); and the second conveying auger (10) is connected to a second servo drive mechanism (12).

3. A pre-filled needle nesting device as claimed in claim 2, characterized in that: A pre-filling needle in-position sensor (31) is provided on a side of the first conveying auger (9) close to the second conveying auger (10); the pre-filling needle in-position sensor (31) is arranged on the first conveying auger (9) and is at least one station away from the second conveying auger (10).

4. A pre-filled needle nesting device as claimed in claim 2, characterized in that: The pre-filling needle conveying slide rail is S-shaped, and a conveying dial wheel (14) is provided below the pre-filling needle conveying slide rail.

5. A pre-filled needle nesting device as claimed in claim 1, characterized in that: The positioning groove (8) is trumpet-shaped.

6. A pre-filled needle nesting device as claimed in claim 2, characterized in that: A material collecting groove (15) is provided on one side of the pre-filling needle conveying chute (13), and the material collecting groove (15) is docked with a material collecting box (16) or a detachable docking sampling mold (17).

7. A pre-filled needle nesting device as claimed in claim 1, characterized in that: The nest box positioning mechanism (6) comprises a positioning rod (19) for clamping into a nest plate and a blocking box assembly (20) for blocking the nest box.

8. A pre-filled needle nesting device as claimed in claim 2, characterized in that: The nest box positioning mechanism (6) is arranged on one side of the second conveying auger (10), the pre-filling needle lifting positioning mechanism (7) comprises a lifting drive mechanism (21) and a positioning member (22), the positioning member (22) is provided with a positioning groove (8), the lifting drive mechanism (21) is arranged on one side of the first conveying auger (9), the positioning member (22) is arranged below the pre-filling needle conveying channel (3), and the lifting drive mechanism (21) and the positioning member (22) are connected by a connecting rod (23).

9. A pre-filled needle nesting device as claimed in claim 1, characterized in that: The box entry end of the nest box conveying channel (5) is connected to the pre-filled filling host (25) via a box conveying channel (24); the box conveying channel (24) is connected to a first lifting channel (26), a transverse conveying channel (27) and a second lifting channel (28); and an inspection channel (29) is formed below the transverse conveying channel (27).

10. A method for inserting a pre-filled needle into a nest, characterized in that: A pre-filled needle nesting device comprising any one of claims 3 to 9, wherein: The nest box positioning mechanism (6) positions the nest box, and the first conveying auger (1) operates; During the operation of the first conveying auger (1), when the pre-filling needle in-position sensor (31) detects that there is a bottle, the second conveying auger (2) operates according to the acceleration cam curve, and after the set stroke is run, it switches to the operation cam curve. If the pre-filling needle in-position sensor (31) continues to detect that there is a bottle, the second conveying auger (2) operates according to the operation cam curve. If the pre-filling needle in-position sensor (31) detects that there is no bottle, the second conveying auger (2) operates according to the deceleration cam curve; The first conveying auger (1) and the second conveying auger (2) are in operation. After the operation reaches the set stroke, the first conveying auger (1) and the second conveying auger (2) stop operating. The pre-filling needle lifting and positioning mechanism (7) lifts and positions the pre-filling needle. After the pre-filling needle transport mechanism (4) transports the pre-filling needle, the first conveying auger (1) and the second conveying auger (2) continue operating. When the discharge amount of the pre-filling needle transfer mechanism (4) is greater than or equal to the set value, the nest box positioning mechanism releases the box, the box pushing mechanism (18) pushes the next nest box to move, and the nest box positioning mechanism (6) positions the next nest box.

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