Medicament subpackaging device

Abstract

The invention provides a medicament subpackaging device, and relates to the technical field of filling equipment, the medicament subpackaging device comprises a filling cylinder, a storage tank, a switch cylinder, a guide rod, a support, an elastic telescopic piece and a piston mechanism, the storage tank is fixed on the support, the filling cylinder is communicated with a filling nozzle and a feeding pipe, the feeding pipe is communicated with the storage tank, a cavity is arranged in the cylinder wall of the filling cylinder, and the cavity is communicated with the storage tank. The switch cylinder is rotationally connected into the cavity through an elastic piece, the piston end of the piston mechanism is movably connected into the filling cylinder, one end of the guide rod is slidably connected to the piston mechanism, the end of the guide rod is matched with the switch cylinder and the filling cylinder, and when the piston mechanism drives the guide rod to move up and down, the switch cylinder rotates; the fixed end of the elastic telescopic piece is connected to the support, the movable end of the elastic telescopic piece is connected with the guide rod in a sliding mode, the filling nozzle and the feeding pipe are alternately opened or closed, medicine is effectively sucked in or extruded out, medicine blocking is avoided, and the medicine filling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filling equipment, and in particular to a medicine dispensing device. Background Art

[0002] When medicines are produced in large quantities, filling machines are required for subpackaging. For example, the patent with announcement number CN218491446U discloses an ointment emulsifying and mixing filling machine, including a filling machine body, a containing cylinder is fixedly mounted on the surface of the filling machine body, the interior of the containing cylinder is connected to a conveying pipe, and a supporting structure is provided on the surface of the containing cylinder, and the supporting structure includes two long frames, and the surfaces of the two long frames are fixedly connected to the filling machine body. The beneficial effect is that bottles of different heights can be supported, so that the staff does not need to hold the bottles of lower height by hand to fill the ointment. However, for medicines with higher viscosity and poorer fluidity, when the filling machine is used to pack the medicines with higher viscosity, the medicine output is difficult, and there may even be a situation where the medicine is broken, which reduces the filling speed and the filling nozzle is easily blocked. For this reason, the present application proposes a medicine subpackaging device. Summary of the invention

[0003] In view of this, the present invention proposes a medicine packaging device to solve the above-mentioned problems.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A medicine dispensing device comprises a canning cylinder, a storage tank, a switch cylinder, a guide rod, a bracket, an elastic telescopic member and a piston mechanism, wherein the storage tank is fixed on the bracket, the filling cylinder is connected with a filling nozzle and a feeding pipe, the feeding pipe is connected with the storage tank, a cavity is provided in the cylinder wall of the filling cylinder, the switch cylinder is rotatably connected in the cavity through an elastic member, the piston mechanism is installed on the filling cylinder, the piston end of the piston mechanism is movably connected in the filling cylinder, one end of the guide rod is slidably connected to the piston mechanism, the end of the guide rod cooperates with the switch cylinder and the canning cylinder, when the piston mechanism drives the guide rod to move up and down, the switch cylinder rotates, thereby realizing alternate opening or closing of the filling nozzle and the feeding pipe, the fixed end of the elastic telescopic member is connected to the bracket, and the movable end of the elastic telescopic member is slidably connected to the guide rod.

[0006] Preferably, the filling cylinder comprises an inner cylinder and an outer cylinder, the inner cylinder is connected to the inside of the outer cylinder, and the cavity is located between the outer cylinder and the inner cylinder.

[0007] Preferably, a driving groove and a sliding groove are provided on the switch cylinder, the end of the guide rod cooperates with the driving groove, the driving groove is connected to the sliding groove, a guide block connected to the side wall of the outer cylinder is slidably connected in the sliding groove, and the inner cylinder is provided with a receiving groove for receiving the guide rod.

[0008] Preferably, the elastic member comprises a plurality of annular pressure springs, which are equidistantly arranged on the outer periphery of the switch cylinder along the circumferential direction, one end of the plurality of annular pressure springs is connected to the switch cylinder, and the ends of the plurality of annular pressure springs are connected to the filling cylinder.

[0009] Preferably, a discharge groove is provided at the bottom of the switch cylinder, and the discharge groove cooperates with the filling nozzle. A feed groove is provided on the side wall of the switch cylinder, and the feed groove cooperates with the feed pipe.

[0010] Preferably, the piston mechanism comprises a piston and a cylinder, the cylinder is mounted on the filling barrel via a plurality of fixing rods, the cylinder is connected to the piston via a piston rod, and the piston is movably connected in the filling barrel.

[0011] Preferably, the piston rod is connected to a cross bar, and the guide rod is slidably connected to the cross bar.

[0012] Preferably, the elastic telescopic member includes an inner rod, an outer rod and a pressure spring, the outer rod is fixed to the bracket, the inner rod is slidably connected to the outer rod through the pressure spring, and the end of the inner rod is slidably connected to the guide rod.

[0013] Preferably, the outer wall of the switch cylinder is equidistantly connected with a plurality of connection blocks 1 along the circumferential direction, the outer wall of the outer cylinder is equidistantly connected with a plurality of connection blocks 2 along the circumferential direction, and both ends of the annular pressure spring are respectively connected with the connection block 1 and the connection block 2.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The up and down movement of the piston mechanism can drive the guide rod to move downward, and the end of the guide rod can abut against the switch barrel. The switch barrel rotates to open the filling nozzle and close the feeding pipe at the same time. The piston mechanism moves downward to apply pressure to the medicine in the canning barrel, and the medicine is filled into the bottle from the filling nozzle. When the piston end of the piston mechanism contacts the bottom of the canning barrel, all the medicine in the canning barrel is squeezed out, the switch barrel is reset, the filling nozzle is closed, the feeding pipe is opened, the piston mechanism moves upward, the canning barrel is under negative pressure, and the medicine in the storage tank is sucked into the canning barrel again. The up and down movement of the piston mechanism can realize the alternating opening or closing of the filling nozzle and the feeding pipe, change the pressure in the canning barrel, effectively suck in or squeeze out the medicine, avoid medicine blockage, and improve the medicine filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a side view structural schematic diagram of a medicine dispensing device of the present invention;

[0018] Figure 2 It is a partial cross-sectional structural schematic diagram of the canning cylinder, the switch cylinder, the guide rod and the piston mechanism of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the local A in the middle;

[0020] Figure 4 It is a partial structural schematic diagram of the inner cylinder, switch cylinder, guide rod and other components of the present invention;

[0021] Figure 5 It is a partial structural schematic diagram of the inner cylinder, switch cylinder, guide rod and other components of the present invention;

[0022] In the figure, 1, canning cylinder; 2, inner cylinder; 3, outer cylinder; 4, storage tank; 5, switch cylinder; 6, driving groove; 7, slide groove; 8, guide rod; 9, guide block; 10, bracket; 11, elastic telescopic member; 12, piston mechanism; 13, fixing rod; 14, piston rod; 15, cylinder; 16, connecting ring; 17, filling nozzle; 18, feeding pipe; 19, cavity; 20, elastic member; 21, annular pressure spring; 22, containing groove; 23, discharging groove; 24, feeding groove; 25, cross bar; 26, connecting block 1; 27, connecting block 2; 28, conveyor belt; 29, bottle; 30, guide surface. DETAILED DESCRIPTION

[0023] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0024] See also Figures 1 to 5The present invention provides a medicine dispensing device, comprising a filling cylinder 1, a storage tank 4, a switch cylinder 5, a guide rod 8, a bracket 10, an elastic telescopic member 11 and a piston mechanism 12. The storage tank 4 is fixed on the bracket 10. The bracket 10 is provided with a transmission belt for conveying a bottle 29, which plays a role in fixing and supporting the storage tank 4. The filling cylinder is connected with a filling nozzle 17 and a feeding pipe 18. During filling, the medicine is filled into the bottle 29 from the filling nozzle. The feeding pipe 18 is connected with the storage tank 4 through a connecting pipe. The medicine in the storage tank 4 is sucked into the feeding pipe 18 through the connecting pipe. A cavity 19 is provided in the cylinder wall of the filling cylinder. The switch cylinder 5 is rotated by the elastic member 20. Connected in the cavity 19, the elastic member 20 can realize the reset of the switch cylinder 5, the piston mechanism 12 is installed on the filling cylinder, the piston end of the piston mechanism 12 is movably connected in the filling cylinder, one end of the guide rod 8 is slidably connected to the piston mechanism 12, and the end of the guide rod 8 cooperates with the switch cylinder 5 and the canning cylinder 1. When the piston mechanism 12 drives the guide rod 8 to move up and down, the switch cylinder 5 is rotated, so that the filling nozzle 17 and the feeding tube 18 are alternately opened or closed. The fixed end of the elastic telescopic member 11 is connected to the bracket 10, and the movable end of the elastic telescopic member 11 is slidably connected to the guide rod 8, which effectively avoids the blockage of the medicine and improves the efficiency of the medicine filling.

[0025] The filling cylinder comprises an inner cylinder 2 and an outer cylinder 3 , wherein the inner cylinder 2 is connected to the inner part of the outer cylinder 3 via a connecting ring 16 , and the cavity 19 is located between the outer cylinder 3 and the inner cylinder 2 . The medicine is sucked into the inner cylinder 2 under the action of the piston mechanism 12 .

[0026] The switch cylinder 5 is provided with a driving groove 6 and a sliding groove 7. The end of the guide rod 8 cooperates with the driving groove 6. The driving groove 6 is connected with the sliding groove 7. A guide surface 30 is provided on the driving groove 6. The guide rod 8 moves downward to act on the guide surface 30, so that the switch cylinder 5 rotates, the filling nozzle 17 is opened, and the feeding pipe 18 is closed. A guide block 9 connected to the side wall of the outer cylinder 3 is slidably connected in the sliding groove 7. When the piston end of the piston mechanism 12 contacts the bottom of the inner cylinder 2, that is, when the medicine in the inner cylinder 2 is completely squeezed out, the guide rod 8 acts on the guide block 9. Under the action of the elastic telescopic member 11 and the guide block 9, the guide rod 8 moves to the side close to the inner cylinder 2, and the guide rod 8 leaves the driving groove 6. The inner cylinder 2 is provided with a receiving groove 22 for accommodating the guide rod 8, wherein a discharge groove 23 is provided at the bottom of the switch cylinder 5, and the discharge groove 23 cooperates with the filling nozzle 17. When the two are aligned, the filling nozzle 17 is opened, and when they are staggered, the filling nozzle 17 is closed. The side wall of the switch cylinder 5 is provided with a feed groove 24, and the feed groove 24 cooperates with the feed pipe 18. When the two are aligned, the feed pipe is opened, and when they are staggered, the feed pipe is closed.

[0027] The elastic member 20 includes a plurality of annular pressure springs 21, which are equidistantly arranged on the outer periphery of the switch cylinder 5 along the circumferential direction, one end of the plurality of annular pressure springs 21 is connected to the switch cylinder 5, and the ends of the plurality of annular pressure springs 21 are connected to the filling cylinder. The annular pressure springs 21 can reset the switch cylinder 5.

[0028] The piston mechanism 12 includes a piston and a cylinder 15. The cylinder 15 is mounted on the filling barrel through a plurality of fixing rods 13. The cylinder 15 is connected to the piston through a piston rod 14. The piston is movably connected in the filling barrel.

[0029] The piston rod 14 is connected with a cross bar 25 , and the guide rod 8 is slidably connected with the cross bar 25 .

[0030] The elastic telescopic member 11 includes an inner rod (not marked), an outer rod (not marked) and a pressure spring (not marked). The outer rod (not marked) is fixed to the bracket 10, and the inner rod (not marked) is slidably connected to the outer rod (not marked) through a pressure spring (not marked). The end of the inner rod (not marked) is slidably connected to the guide rod 8.

[0031] When filling the medicine, under the action of the cylinder 15, the piston rod 14 drives the guide rod 8 to move downward, the end of the guide rod 8 abuts against the guide surface 30, the switch cylinder 5 rotates counterclockwise, the discharge slot 23 is aligned with the filling nozzle 17, the filling nozzle 17 is opened, and the feed slot 24 is staggered with the feed pipe 18, the feed pipe 18 is closed, the piston moves downward to pressurize the medicine in the inner cylinder 2, and the medicine is filled into the bottle 29 from the filling nozzle 17. When the piston contacts the bottom of the inner cylinder 2, the medicine in the inner cylinder 2 is completely squeezed out, and the guide rod 8 acts on the guide block 9. Under the action of 11, the guide rod 8 moves to the side close to the inner cylinder 2, the guide rod 8 leaves the driving groove 6 and enters the accommodating groove 22, the guide rod 8 loses the limit on the switch cylinder 5, the switch cylinder 5 is reset, the filling nozzle 17 is closed, the feeding pipe 18 is opened, the piston moves up, the inner cylinder 2 is under negative pressure, and the medicine in the storage tank 4 is sucked into the inner cylinder 2 again. The up and down movement of the piston mechanism 12 can realize the alternating opening or closing of the filling nozzle 17 and the feeding pipe 18, change the pressure in the inner cylinder 2, effectively suck in or squeeze out the medicine, avoid medicine blockage, and improve the medicine filling efficiency.

[0032] Example 2

[0033] See also Figures 3 to 5 The difference between this embodiment and embodiment 1 is that: the outer wall of the switch cylinder 5 is connected with a plurality of connection blocks 26 at equal intervals along the circumferential direction, the outer wall of the outer cylinder 3 is connected with a plurality of connection blocks 27 at equal intervals along the circumferential direction, and the two ends of the annular pressure spring 21 are respectively connected to the connection block 1 26 and the connection block 2 27, so that the switch cylinder 5 can be reset.

[0034] The cross section of the cavity 19 is in a trapezoidal shape, which is convenient for installing the elastic member 20 .

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A medicine dispensing device, characterized in that: It includes a canning cylinder, a storage tank, a switch cylinder, a guide rod, a bracket, an elastic telescopic member and a piston mechanism. The storage tank is fixed on the bracket. The filling cylinder is connected with a filling nozzle and a feeding pipe. The feeding pipe is connected with the storage tank. A cavity is provided in the cylinder wall of the filling cylinder. The switch cylinder is rotatably connected in the cavity through an elastic member. The piston mechanism is installed on the filling cylinder. The piston end of the piston mechanism is movably connected in the filling cylinder. One end of the guide rod is slidably connected to the piston mechanism. The end of the guide rod cooperates with the switch cylinder and the canning cylinder. When the piston mechanism drives the guide rod to move up and down, the switch cylinder rotates, thereby realizing alternate opening or closing of the filling nozzle and the feeding pipe. The fixed end of the elastic telescopic member is connected to the bracket, and the movable end of the elastic telescopic member is slidably connected to the guide rod.

2. A medicine dispensing device according to claim 1, characterized in that: The filling cylinder comprises an inner cylinder and an outer cylinder, the inner cylinder is connected to the inside of the outer cylinder, and the cavity is located between the outer cylinder and the inner cylinder.

3. A medicine dispensing device according to claim 2, characterized in that: The switch cylinder is provided with a driving groove and a sliding groove, the end of the guide rod cooperates with the driving groove, the driving groove is connected to the sliding groove, a guide block connected to the side wall of the outer cylinder is slidably connected in the sliding groove, and the inner cylinder is provided with a receiving groove for receiving the guide rod.

4. A medicine dispensing device according to claim 4, characterized in that: The elastic member comprises a plurality of annular pressure springs, which are equidistantly arranged on the outer periphery of the switch cylinder along the circumferential direction, one end of the plurality of annular pressure springs is connected to the switch cylinder, and the ends of the plurality of annular pressure springs are connected to the filling cylinder.

5. A medicine dispensing device according to claim 1, characterized in that: The bottom of the switch cylinder is provided with a discharge groove, and the discharge groove cooperates with the filling nozzle. The side wall of the switch cylinder is provided with a feed groove, and the feed groove cooperates with the feed pipe.

6. A medicine dispensing device according to claim 1, characterized in that: The piston mechanism comprises a piston and a cylinder. The cylinder is mounted on the filling barrel through a plurality of fixing rods. The cylinder is connected to the piston through a piston rod. The piston is movably connected in the filling barrel.

7. A medicine dispensing device according to claim 6, characterized in that: The piston rod is connected with a cross bar, and the guide rod is slidably connected with the cross bar.

8. A medicine dispensing device according to claim 1, characterized in that: The elastic telescopic member comprises an inner rod, an outer rod and a pressure spring, the outer rod is fixed on the bracket, the inner rod is slidably connected to the outer rod through the pressure spring, and the end of the inner rod is slidably connected to the guide rod.

9. A medicine dispensing device according to claim 4, characterized in that: The outer wall of the switch cylinder is equidistantly connected with a plurality of connection blocks 1 along the circumferential direction, the outer wall of the outer cylinder is equidistantly connected with a plurality of connection blocks 2 along the circumferential direction, and both ends of the annular pressure spring are respectively connected with the connection block 1 and the connection block 2.

10. A medicine dispensing device according to claim 1, characterized in that: The cross section of the cavity is in a trapezoidal shape.

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