CN215285343U - Prefilled syringe liquid filling machine - Google Patents

Abstract

The utility model discloses a prefilled syringe liquid filling machine, including the transfer chain that is used for bearing and carrying the syringe, the transfer chain divides into filling station and capping station along the transmission direction of syringe, filling station department is equipped with the filling subassembly that is used for to filling injection solution in the syringe, capping station department is equipped with the capping subassembly that is used for with cap body cover the lower extreme of syringe after the filling; the filling station is further provided with a clamping assembly and a lifting assembly, the clamping assembly is used for clamping or loosening the injection tube of the injector, and the lifting assembly is used for driving the injection handle of the injector to be lifted upwards for a set distance relative to the injection tube when the filled injection tube is clamped by the clamping assembly. The prefilled syringe filling machine has the advantages of simple structure and high stability.

Description

Prefilled syringe liquid filling machine

Technical Field

The utility model belongs to the technical field of medicine packaging machinery, especially, relate to a pre-filling type syringe liquid filling machine.

Background

The pre-filled syringe is a common medical instrument and generally comprises an injection tube, an injection handle and a cap body, wherein a curled edge is arranged on the injection tube, the cap body is sleeved on a needle head end at the front end of the injection tube, and the injection handle is slidably arranged in the injection tube; when in injection, the cap body is taken down, and the injection solution pre-filled in the injection tube is pushed out of the injector by the pushing of the injection handle at the tail end of the bottle body.

The prefilled syringe filling and sealing machine in the market at present mainly purchases German and Italy products, has a complex structure and high price, has strict requirements on pharmaceutical packaging materials, and restricts the production and development of the prefilled syringe filling and sealing machine in China. In addition, the stability of the existing filling and sealing equipment is not very good in the filling process, and the problem that liquid medicine is dropped and leaked downwards frequently occurs before a cap is not added after the filling of an injector.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a pre-filled syringe filling machine with simple structure and high stability.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the prefilled syringe filling machine comprises a conveying line for bearing and conveying syringes, wherein the conveying line is divided into a filling station and a capping station along the transmission direction of the syringes, the filling station is provided with a filling assembly for filling injection solution into the syringes, and the capping station is provided with a capping assembly for sleeving cap bodies on the lower ends of the filled syringes;

the filling station is further provided with a clamping assembly and a lifting assembly, the clamping assembly is used for clamping or loosening the injection tube of the injector, and the lifting assembly is used for driving the injection handle of the injector to be lifted upwards for a set distance relative to the injection tube when the filled injection tube is clamped by the clamping assembly.

Specifically, the transfer chain includes the hold-in range and drives the step motor of hold-in range motion, evenly be equipped with a plurality of draw-in grooves that are used for hanging the injection tube on the hold-in range.

Specifically, the hold-in range is the annular in the horizontal plane and arranges, the draw-in groove sets up on the lateral wall of hold-in range, the outside of hold-in range is equipped with and prevents the injection tube is followed the first barrier of roll-off in the draw-in groove.

Specifically, the transfer chain still include with the step-by-step thumb wheel of the input butt joint of hold-in range, evenly distributed has the notch of a plurality of holding syringes on the step-by-step thumb wheel, the outside of step-by-step thumb wheel is equipped with and prevents the syringe from following the second barrier that deviates from in the notch.

Specifically, the clamping assembly comprises a pair of clamping blocks which are oppositely arranged on two sides of the injection cylinder and a first driving element which drives the pair of clamping blocks to move close to or away from each other so as to clamp or release the injection cylinder.

Specifically, the filling assembly comprises a filling needle arranged below the conveying line and a second driving element for driving the filling needle to move up and down so as to be in butt joint with the lower end of the injection cylinder.

Specifically, the lifting assembly comprises a chuck for clamping or loosening the injection handle and a fourth driving element for driving the chuck to move up and down, and the clamping or loosening of the chuck is driven by a fifth driving element.

Specifically, the capping assembly comprises a capping rod, a pressure plate, a sixth driving element and a seventh driving element, the capping rod is arranged right below the injection cylinder, the top of the capping rod is provided with an accommodating cavity, and the pair of second clamping blocks are oppositely arranged on two sides of the injection cylinder;

the sixth driving element is used for driving the capping rod to move up and down so as to enable the cap body in the accommodating cavity to be sleeved on the lower end of the injection cylinder, and the seventh driving element is used for driving the pair of second clamping blocks to mutually approach or separate so as to clamp or loosen the injection cylinder.

Specifically, the capping assembly further comprises a cap walking channel which is matched with the cap body and is obliquely arranged, and a cap straightening channel which is arranged on the cap walking channel, wherein the output end of the cap walking channel is in butt joint with a cap inlet at the side part of the accommodating cavity.

Specifically, the conveying line is further divided into a waste rejecting station at the downstream of the capping station, and a waste rejecting assembly is arranged at the waste rejecting station;

the waste rejecting assembly comprises a waste rejecting cylinder, a movable baffle and an air blowing nozzle, the movable baffle and the air blowing nozzle are respectively and oppositely arranged on the outer side and the inner side of the conveying line, the movable baffle is driven by the waste rejecting cylinder to be close to or far away from the conveying line, and an air jet of the air blowing nozzle is aligned to an injector on the conveying line.

Compared with the prior art, the utility model discloses at least one embodiment has following beneficial effect: add at filling station department and be equipped with centre gripping subassembly and lifting means, the centre gripping subassembly is used for pressing from both sides tight fixed injection tube, and lifting means is used for when the injection tube after the filling is pressed from both sides tightly by the centre gripping subassembly, drives the injection handle of syringe and upwards promotes the settlement distance to can effectively prevent the liquid medicine in the syringe from leaking downwards, promote the stability of canning high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic top view of a filling machine according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a canning component according to an embodiment of the present invention;

fig. 3 is a schematic view of a capping assembly mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a waste removing assembly according to an embodiment of the present invention;

wherein: 1. an injector; 2. a conveying line; 201. a synchronous belt; 202. a drive wheel; 203. a stepping dial wheel; 204. inputting a slide rail; 3. a card slot; 4. a filling station; 5. a capping station; 6. a filling assembly; 601. a perfusion needle; 602. a second drive element; 7. a capping assembly; 701. a capping rod is added; 702. a second clamping block; 703. a sixth drive element; 704. a seventh driving element; 705. a cap-moving channel; 706. the cap is leveled and vibrated; 707. a cap arranging hopper; 8. a clamping assembly; 801. a second clamping block; 802. a first drive element; 9. a lifting assembly; 901. a chuck; 902. a fourth drive element; 903. a fifth drive element; 10. a cap body; 11. a first barrier; 12. curling; 13. a waste removing station; 14. rejecting the assembly; 141. a waste rejecting cylinder; 142. a movable baffle; 143. a blowing nozzle; 144. a bottle discharging slideway; 15. and (7) positioning the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, a prefilled syringe filling machine comprises a conveying line 2 for carrying and conveying a syringe 1, wherein the conveying line 2 comprises a synchronous belt 201 and a stepping motor for driving the synchronous belt 201 to move, a plurality of clamping grooves 3 for hanging a syringe are uniformly arranged on the synchronous belt 201, when the syringe is vertically and rotatably hung on the synchronous belt 201, the needle end of the syringe faces downwards, the conveying line 2 is divided into a filling station 4 and a capping station 5 along the transmission direction of the syringe 1, a filling assembly 6 for filling injection solution into the syringe 1 is arranged at the filling station 4, and a capping assembly 7 for sleeving a cap body 10 at the lower end of the filled syringe is arranged at the capping station 5.

Specifically, filling station 4 department still is equipped with clamping component 8 and lifting unit 9, and clamping component 8 is used for pressing from both sides the injection tube of tight or unclamping syringe 1, and lifting unit 9 is used for when the injection tube after the filling is pressed from both sides tightly by clamping component 8, drives the injection handle of syringe 1 and upwards promotes the settlement distance relative to the injection tube.

In this embodiment, install centre gripping subassembly 8 and lifting unit 9 additional in filling station 4 department, when lifting unit 9 is pressed from both sides tightly by centre gripping subassembly 8 in the injection tube after the filling, can drive the relative injection tube of injection handle of syringe 1 and upwards promote the settlement distance to can effectively prevent that the liquid medicine in the syringe 1 from passing through the needle head end and down dripping and leaking, whole filling and sealing machine has simple structure compactness, low cost, advantage that stability is high.

Referring to fig. 1, in practical design, two ends of a synchronous belt 201 are connected with driving wheels 202, a stepping motor is connected with one of the driving wheels 202, the synchronous belt 201 is annularly arranged in a horizontal plane, a slot 3 is arranged on an outer side wall of the synchronous belt 201, a first barrier 11 for preventing the injector 1 from sliding out of the slot 3 is arranged on an outer side between an input end of the synchronous belt 201 and a capping station 5, an injection tube of the injector 1 can be clamped in the slot 3 from an outer side opening of the slot 3, the tail end of the injection tube has a turned edge 12, so the injection tube can be suspended in the slot 3 without falling off, after entering from the input end of the synchronous belt 201, after sequentially performing steps of canning, capping, and the like, the injection tube flows out from an output end of the synchronous belt 201, an output slide rail (not shown in the figure) which is obliquely arranged downwards is abutted to the output end of the synchronous belt 201, an output slide rail for the bottle body to slide in a hanging manner is arranged on the output slide rail, the filled vials that slide off the output slide fall into a collection hopper (not shown). Of course, the clamping groove 3 on the synchronous belt 201 can also adopt other structures, and only the injection tube needs to be ensured to be vertically hung on the synchronous belt 201.

Referring to fig. 1, specifically, the conveyor line 2 further includes a step dial wheel 203 butted with an input end of the synchronous belt 201 and an input slide rail 204 butted with an input end of the step bottle feeding dial wheel, a plurality of notches for accommodating the syringes 1 are uniformly distributed on the step dial wheel 203, the syringes can be suspended in the notches, a second barrier for preventing the syringes 1 from falling out of the notches is arranged on an outer side of the step dial wheel 203, the input slide rail 204 is arranged obliquely, an input slide rail for allowing the syringes to suspend and slide is arranged on the input slide rail 204, the syringes are suspended on the input slide rail 204 due to the limitation of the curled edge 12 and fall into the notches at the input end of the step dial wheel 203 along the input slide rail, and the second barrier extends to the input slide rail 204, so that when the step bottle feeding wheel rotates, the syringes can be driven to rotate synchronously with the syringes, and cannot fall from side openings of the notches.

Referring to fig. 2, in some embodiments, the clamping assembly 8 includes a pair of first clamping blocks 801 oppositely disposed at two sides of the syringe and a first driving element 802 driving the pair of first clamping blocks 801 to approach or move away from each other to clamp or release the syringe, the filling assembly 6 includes a filling needle 601 disposed below the conveying line 2 and a second driving element 602 driving the filling needle 601 to move up and down to be abutted with the lower end of the syringe, the filling needle 601 is connected with the filling pump, the lifting assembly 9 includes a collet 901 for clamping or releasing the injection handle and a fourth driving element 902 driving the collet 901 to move up and down, and the clamping or releasing of the collet 901 is driven by a fifth driving element 903.

In this embodiment, when the injector 1 moves to the filling station 4, the timing belt 201 stops moving, the first driving element 802 drives the pair of first clamping blocks 801 to approach each other and clamp the syringe, the second driving element 602 drives the filling needle 601 to move upward to abut against the lower end of the syringe (needle end), after the butt joint is completed, the filling pump is started, the injection solution is injected into the injection tube through the filling needle 601, the injection handle moves upwards for a set distance relative to the injection tube due to the filling pressure, after the filling, the filling needle 601 resets, the fifth driving element 903 drives the chuck 901 to clamp the injection handle, the fourth driving element 902 drives the chuck 901 to move upwards to pull the injection handle upwards for a certain distance, the liquid medicine in the injector 1 can be prevented from dripping downwards, after the steps are completed, the clamping head 901 loosens the injection handle, the first clamping block 801 loosens the injection tube, and the synchronous belt 201 continues to move to convey the filled injection tube to the next station.

Referring to fig. 3, in other embodiments, the capping assembly 7 comprises a capping rod 701, a pair of second clamping blocks 702, a sixth driving element 703 and a seventh driving element 704, the capping rod 701 is disposed right below the syringe and provided with a receiving cavity at the top, and the pair of second clamping blocks 702 are oppositely disposed at two sides of the syringe; the sixth driving element 703 is used to drive the capping rod 701 to move up and down to sleeve the cap body 10 in the receiving cavity on the lower end of the syringe, and the seventh driving element 704 is used to drive the pair of second clamping blocks 702 to move close to or away from each other to clamp or release the syringe.

In this embodiment, when the injector 1 moves to the capping station 5, the synchronous belt 201 stops moving, the seventh driving element 704 drives the second clamping block 702 to clamp the injection tube, so that the position of the injection tube remains unchanged, and then the sixth driving element 703 drives the capping rod 701 to move upward to sleeve the cap body 10 in the accommodating cavity on the lower end of the injection tube, thereby completing capping; after the capping is completed, the sixth driving element 703 drives the capping rod 701 to move downwards to separate from the injection tube, the seventh driving element 704 drives the second clamping block 702 to loosen the injection tube, and the capped injector 1 can be conveyed to the next station by using the synchronous belt 201.

When capping, in order to prevent that the injection tube from being pushed to move upwards, a positioning plate 15 is arranged above the curled edge 12 of the injection tube at the filling station 4 and the capping station 5, a gap for the movement of the curled edge 12 exists between the curled edge 12 of the injection tube and the synchronous belt 201, and the positioning plate 15 supports against the upper end face of the injection tube so that the cap can be stably pressed into the injection tube. Similarly, a positioning plate can be arranged above the crimping edge 12 of the syringe at the filling station 4.

Referring to fig. 1 and 3, in other embodiments, the capping assembly 7 further includes a cap-removing channel 705 adapted to the cap body 10 and disposed obliquely, and a cap-straightening vibrator 706 disposed on the cap-removing channel 705, wherein an output end of the cap-removing channel 705 is in butt joint with a cap inlet at a side of the receiving cavity. In this example, the cap body 10 coming out of the cap-sorting hopper 707 is conveyed to the accommodating cavity through the cap-walking channel 705, and is conveyed into the accommodating cavity under the vibration action of the cap-sorting flat vibration 706, and the cap body 10 in the accommodating cavity is pushed and sleeved outside the needle end of the syringe through the cap-adding rod 701 at the top, so that the loading of the cap body 10 can be completed, and the whole set of implementation structure has the advantages of simplicity and reliability. Wherein, the first to seventh driving elements can adopt oil cylinders, air cylinders or linear motors.

Referring to fig. 1 and 4, in other embodiments, the conveying line 2 is further divided into a waste rejecting station 13 located downstream of the capping station 5, a waste rejecting assembly 14 is arranged at the waste rejecting station 13, the waste rejecting assembly 14 includes a waste rejecting cylinder 141, a movable baffle 142 and a blowing nozzle 143, the movable baffle 142 and the blowing nozzle 143 are respectively and oppositely arranged at the outer side and the inner side of the conveying line, the movable baffle 142 is driven by the waste rejecting cylinder 141 to be close to or far from the conveying line, and an air outlet of the blowing nozzle 143 is aligned with the injector 1 on the synchronous belt 201.

When the bottle body moves to the waste rejecting station 13, the waste rejecting cylinder 141 drives the movable baffle 142 at the front end to retreat, and the blowing nozzle 143 at the opposite lower end is opened for blowing, at this time, the outer side of the synchronous belt 201 is not limited by the movable baffle 142, the injector 1 can be separated from the side opening of the clamping groove 3 of the synchronous belt 201 under the action of external force, if the synchronous belt 201 is provided with an empty injector 1, the weight of the empty injector 1 is light, so the injector 1 is separated from the clamping groove 3 under the action of the air flow of the blowing nozzle 143 and then falls into the bottle falling slide rail 144, and the injector 1 filled with injection solution cannot be blown down by the blowing nozzle 143 to enter the collecting hopper due to the moderate weight, so that the waste rejecting action is completed.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated. The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Claims (10)

1. Prefilled syringe liquid filling machine, including transfer chain (2) that is used for bearing and carrying syringe (1), transfer chain (2) divide into filling station (4) and capping station (5) along the direction of transmission of syringe (1), filling station (4) department is equipped with and is used for to filling subassembly (6) of injection solution in syringe (1), capping station (5) department is equipped with and is used for capping subassembly (7) of capping the lower extreme of the injection tube after the filling with cap body (10), its characterized in that: the filling device is characterized in that a clamping assembly (8) and a lifting assembly (9) are further arranged at the filling station (4), the clamping assembly (8) is used for clamping or loosening the injection tube of the injector (1), and the lifting assembly (9) is used for driving the injection handle of the injector (1) to be lifted upwards for a set distance relative to the injection tube when the filled injection tube is clamped by the clamping assembly (8).

2. A pre-filled syringe filling machine as set forth in claim 1 wherein: the conveying line (2) comprises a synchronous belt (201) and a stepping motor for driving the synchronous belt (201) to move, and a plurality of clamping grooves (3) used for hanging the injection cylinder are uniformly formed in the synchronous belt (201).

3. A pre-filled syringe filling machine as set forth in claim 2 wherein: hold-in range (201) are the annular in the horizontal plane and arrange, draw-in groove (3) set up on the lateral wall of hold-in range (201), the outside of hold-in range (201) is equipped with and prevents the injection cylinder is followed first barrier (11) of roll-off in draw-in groove (3).

4. A pre-filled syringe filling machine as set forth in claim 3 wherein: the conveying line (2) further comprises a stepping dial wheel (203) which is in butt joint with the input end of the synchronous belt (201), a plurality of notches for accommodating the syringe (1) are uniformly distributed on the stepping dial wheel (203), and a second barrier for preventing the syringe (1) from being separated from the notches is arranged on the outer side of the stepping dial wheel (203).

5. A pre-filled syringe filling machine as set forth in any one of claims 1 to 4, wherein: the clamping assembly (8) comprises a pair of first clamping blocks (801) which are oppositely arranged at two sides of the syringe and a first driving element (802) which drives the first clamping blocks (801) to move close to or away from each other so as to clamp or release the syringe.

6. A pre-filled syringe filling machine as set forth in any one of claims 1 to 4, wherein: the filling assembly (6) comprises a filling needle (601) arranged below the conveying line (2) and a second driving element (602) driving the filling needle (601) to move up and down to be in butt joint with the lower end of the injection cylinder.

7. A pre-filled syringe filling machine as set forth in any one of claims 1 to 4, wherein: the lifting assembly (9) comprises a chuck (901) for clamping or loosening the injection handle and a fourth driving element (902) for driving the chuck (901) to move up and down, wherein the clamping or loosening of the chuck (901) is driven by a fifth driving element (903).

8. A pre-filled syringe filling machine as set forth in any one of claims 1 to 4, wherein: the capping assembly (7) comprises a capping rod (701), a pair of second clamping blocks (702), a sixth driving element (703) and a seventh driving element (704), the capping rod (701) is arranged right below the injection cylinder, the top of the capping rod is provided with an accommodating cavity, and the pair of second clamping blocks (702) are oppositely arranged on two sides of the injection cylinder;

the sixth driving element (703) is used for driving the capping rod (701) to move up and down so as to sleeve the cap body (10) in the accommodating cavity on the lower end of the injection cylinder, and the seventh driving element (704) is used for driving the pair of second clamping blocks (702) to move close to or away from each other so as to clamp or release the injection cylinder.

9. A pre-filled syringe filling machine as set forth in claim 8 wherein: the capping assembly (7) further comprises a cap walking channel (705) which is matched with the cap body (10) and is obliquely arranged, and a cap straightening flat vibrator (706) arranged on the cap walking channel (705), wherein the output end of the cap walking channel (705) is in butt joint with a cap inlet on the side of the accommodating cavity.

10. A pre-filled syringe filling machine as set forth in any one of claims 1 to 4, wherein: the conveying line (2) is also divided into a waste rejecting station (13) at the downstream of the capping station (5), and a waste rejecting assembly (14) is arranged at the waste rejecting station (13);

the waste removing assembly (14) comprises a waste removing cylinder (141), a movable baffle (142) and a gas blowing nozzle (143), the movable baffle (142) and the gas blowing nozzle (143) are respectively and oppositely arranged on the outer side and the inner side of the conveying line (2), the movable baffle (142) is close to or far away from the conveying line (2) through the driving of the waste removing cylinder (141), and a gas jet of the gas blowing nozzle (143) is aligned to the injector (1) on the conveying line (2).

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