Linear type pump-free filling equipment for injection

Abstract

The utility model relates to the technical field of injection liquid filling, in particular to injection liquid linear type pump-free filling equipment which comprises a base, a support B, a movable frame and a synchronous assembly. A support A is arranged on the base, and a pump-free filling mechanism is arranged on the support A. The support B is connected with the base and the supporting frame, two movable plates are arranged on the supporting frame, and a bidirectional module driving the movable plates on the two sides to act synchronously is arranged on the supporting frame. The movable frames are arranged on the supporting frame in a sliding mode, distributed at equal intervals along a straight line and connected with the mounting plate, and the mounting plate is provided with a needle tube and a connecting tube B communicated with an output port on the corresponding side of the communicating needle tube and the pump-free filling mechanism. The synchronous assembly is located between the movable plates on the two sides and connected with the movable plates on the two sides and the movable frames, and the synchronous assembly drives the movable frames to be synchronously close to or away from each other in the state that the movable plates on the two sides are synchronously close to or away from each other. The distance between the needle tubes is easy and convenient to adjust, and the filling device can be suitable for filling of packaging bottles of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of injection solution filling technology, and in particular to a linear pumpless injection solution filling device. Background Technology

[0002] Pump-free filling is a filling method that does not require a traditional pump. It uses gravity and the pressure difference between the inside and outside of the container to propel the liquid in and out of the container. Its working principle is to utilize the pressure balance between the liquid and the gas inside the container to achieve a pressure difference between the inside and outside of the container. The flow of the liquid is controlled by the height difference between the container and the filling tube, thereby filling the injection solution into the packaging bottle.

[0003] Existing pumpless filling equipment is technologically mature; however, the spacing of its needle output ends is predetermined and all are fixed structures. This limits its ability to fill injection solutions only into bottles of the same size or with equal center-to-center spacing of the openings. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a linear pumpless filling device for injection solutions.

[0005] The technical solution of this utility model is: a linear pumpless filling device for injection liquid, including a base, a support A on the base, and a pumpless filling mechanism with several output ports on the support A.

[0006] Support B is connected to the base and is slidably connected to the support frame. Support B is equipped with a lifting drive component A that drives the support frame to rise and fall. Two movable plates that are slidably connected to the support frame are arranged in parallel on the support frame. A bidirectional module that drives the movable plates on both sides to move closer or further away synchronously is provided on the support frame.

[0007] The movable frame consists of several movable frames mounted on and slidably connected to the support frame. Each movable frame is located between two movable plates on both sides and is equidistantly distributed along a straight line where the centers of the two movable plates are located. The movable frame is connected to a mounting plate, on which a needle tube and a connecting pipe B connected to the needle tube are mounted. The input end of each connecting pipe B is connected to the output port on the corresponding side of the pumpless infusion mechanism.

[0008] And a synchronization component, which is located between the two movable plates and connects the two movable plates and each movable frame. When the two movable plates are driven to move closer or further apart in a bidirectional module, the synchronization component drives each movable frame to move closer or further apart in a bidirectional module, so as to adjust the distance between two adjacent needle tubes.

[0009] Preferably, the pumpless injection mechanism includes a hose, a flow equalizer, a carriage, a linear module, extrusion rollers, and a drive assembly. A bracket A has several sets of corresponding clamping plates B and A. Each end of the hose has a retaining ring, which engages with the corresponding clamping plates A and B. The input end of the hose is connected to connecting pipe A, and the input end of each connecting pipe B is connected to the output end of the hose on the corresponding side. The flow equalizer is connected to the base, and the input end of each connecting pipe A is connected to the corresponding branch pipe on the flow equalizer. The carriage is located between clamping plates A and B and is slidably connected to the bracket A. The linear module is connected to the bracket A and drives the carriage to rise and fall. A number of rotating shafts are equidistantly arranged on the carriage and rotatably connected to it. One end of each shaft extending out of the carriage is coaxially connected to a turntable, and the end of each shaft away from the turntable is coaxially connected to a gear, with adjacent gears meshing with each other. Each extrusion roller is connected to the turntable on the corresponding side and offset from the axis of the turntable on the corresponding side. Each hose is located between two extrusion rollers on the corresponding side. The drive assembly is connected to the carriage and drives each rotating shaft to rotate synchronously, with adjacent rotating shafts rotating in opposite directions.

[0010] Preferably, the drive assembly includes a motor. One of the rotating shafts is coaxially connected to a bevel gear A, and a drive shaft rotatably connected to the bevel gear A is mounted on the carriage. The drive shaft is coaxially connected to a bevel gear B, which meshes with the bevel gear A. The motor body is connected to the carriage, and the motor output end is coaxially connected to the drive shaft.

[0011] Preferably, the top of bracket A is provided with an anti-drip mechanism, which includes a retainer, a pressure plate, and a cylinder B. Each retainer is connected to bracket A, and each retainer is provided with a through-tube groove and a pressure groove communicating with the through-tube groove. Each pressure groove is on the same straight line, and each connecting pipe B passes through the corresponding side of the pressure groove. A bracket C is provided at the top of bracket A, and a straight plate is slidably connected to bracket C. A pressure plate is provided at the bottom of the straight plate and is inserted into the pressure groove. The body of cylinder B is connected to bracket C, and the output end of cylinder B is connected to the straight plate.

[0012] Preferably, the lifting drive assembly A includes a cylinder A. A slide groove is provided on the bracket B, and a guide rod is disposed within the slide groove. One end of the support frame is inserted into the slide groove and slidably connected thereto, and the guide rod passes through the support frame and is slidably connected thereto. The body of cylinder A is connected to the bracket B, and the output end of cylinder A is connected to the support frame.

[0013] Preferably, the synchronization assembly includes connecting rods, connecting shafts, and hinge shafts. There are multiple connecting rods, all arranged in pairs and rotatably connected at their center via hinge shafts. Each hinge shaft is connected to the corresponding movable frame on its side. The ends of two adjacent connecting rod pairs are rotatably connected via connecting shafts to form a scissor lift. The connecting shafts at both ends of the scissor lift are inserted into and slidably connected to the corresponding movable plates on their sides.

[0014] Preferably, a guide rod is provided inside the support frame, and the guide rod passes through the movable plate and each movable frame and is slidably connected to them.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] By setting a cooperative structure consisting of movable plates, bidirectional modules, movable frames, and synchronization components on the support frame, the synchronization components adopt a simple scissor structure. When it is necessary to adjust the distance between two adjacent syringes, only the distance between the two movable plates needs to be adjusted. Then, the synchronization components drive each movable frame to move closer or further away synchronously, thereby achieving simultaneous adjustment of the distance between each syringe. The structure is simple and the adjustment operation is simple. In addition, this utility model also adds an anti-drip mechanism to effectively prevent dripping after the syringe leaves the packaging bottle, thereby further improving the amount of injection liquid filled into each packaging bottle by the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the drive assembly and each extrusion roller;

[0019] Figure 3 This is a schematic diagram of the internal structure of the support frame;

[0020] Figure 4 This is a schematic diagram of the spacing adjustment mechanism;

[0021] Figure 5 A schematic diagram of the anti-drip mechanism.

[0022] Reference numerals: 1. Base; 2. Bracket A; 3. Clamping plate A; 4. Clamping plate B; 5. Hoose; 6. Connecting pipe A; 7. Flow equalizer; 8. Slide carriage; 9. Linear module; 10. Rotating shaft; 11. Turntable; 12. Extrusion roller; 13. Gear; 14. Motor; 15. Bracket B; 16. Support frame; 17. Cylinder A; 18. Movable plate; 19. Bidirectional module; 20. Movable frame; 21. Mounting plate; 22. Needle tube; 23. Connecting pipe B; 24. Synchronization assembly; 241. Connecting rod; 242. Connecting shaft; 243. Hinge shaft; 25. Clamping seat; 251. Through-tube groove; 252. Pressing tube groove; 26. Bracket C; 27. Straight plate; 28. Pressure plate; 29. ​​Cylinder B. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-4As shown, this utility model proposes a linear pumpless filling device for injection solutions, including a base 1, a support B15, a movable frame 20, and a synchronization component 24. A support A2 is mounted on the base 1, and a pumpless filling mechanism with several output ports is installed on the support A2. The pumpless filling mechanism includes a hose 5, a flow equalizer 7, a slide 8, a linear module 9, a squeeze roller 12, and a drive component. Several sets of corresponding clamping plates B4 and A3 are installed on the support A2. A retaining ring is installed at each end of the hose 5, and the retaining rings on both sides respectively engage with the corresponding clamping plates A3 and B4. The input end of the hose 5 is connected to a connecting pipe A6. The flow equalizer 7 is connected to the base 1, and the input end of each connecting pipe A6 is connected to a corresponding branch pipe on the flow equalizer 7. The slide 8 is located between the clamping plates A3 and B4 and is slidably connected to the support A2. The linear module 9 is connected to the support A2 and drives the slide 8 to rise and fall. Several rotating shafts 10 are equidistantly arranged on the slide 8 and are rotatably connected to it. One end of the rotating shaft 10 extending out of the slide 8 is coaxially connected to a turntable 11, and the other end of the rotating shaft 10 away from the turntable 11 is coaxially connected to a gear 13. Adjacent gears 13 mesh with each other. Each extrusion roller 12 is connected to the turntable 11 on the corresponding side and is offset from the axis of the turntable 11 on the corresponding side. Each hose 5 is located between two extrusion rollers 12 on the corresponding side. The drive assembly includes a motor 14. One of the rotating shafts 10 is coaxially connected to a bevel gear A. A transmission shaft is provided on the slide 8 and is rotatably connected to it. The transmission shaft is coaxially connected to a bevel gear B, which meshes with the bevel gear A. The body of the motor 14 is connected to the slide 8, and the output end of the motor 14 is coaxially connected to the transmission shaft. The bracket B15 is connected to the base 1, and the bracket B15 is slidably connected to the support frame 16. A lifting drive assembly A is installed on the bracket B15 to drive the support frame 16 to rise and fall. Two movable plates 18 are parallel to and slidably connected to the support frame 16. A bidirectional module 19 is installed on the support frame 16 to drive the two movable plates 18 to move synchronously closer or further away. Several movable frames 20 are installed on the support frame 16 and slidably connected to it. Each movable frame 20 is located between the two movable plates 18 and is equidistantly distributed along a straight line where the centers of the two movable plates 18 are located. The movable frames 20 are connected to a mounting plate 21. A needle tube 22 and a connecting pipe B23 communicating with the needle tube 22 are installed on the mounting plate 21, and the input end of each connecting pipe B23 is connected to the output end of the corresponding flexible tube 5. The synchronization assembly 24 includes a connecting rod 241, a connecting shaft 242, and a hinge shaft 243. There are multiple connecting rods 241, and all connecting rods 241 are paired together and rotatably connected at the center by hinge shafts 243. Each hinge shaft 243 is connected to the corresponding movable frame 20. The ends of two connecting rods 241 in two adjacent groups are rotatably connected by connecting shafts 242 to form a scissor lift. The connecting shafts 242 at both ends of the scissor lift are inserted into the corresponding movable plates 18 and slidably connected to them. A guide rod is provided in the support frame 16. The guide rod passes through the movable plate 18 and each movable frame 20 and is slidably connected to them.When the bidirectional module 19 drives the two movable plates 18 to move closer or further apart synchronously, the synchronization component 24 drives each movable frame 20 to move closer or further apart synchronously, so as to adjust the distance between two adjacent needle tubes 22.

[0025] In this embodiment, the base 1 of the device is fixed on the conveyor frame. The conveyor belt of the conveyor frame passes through the space above the base 1 and below the needle tube 22. The conveyor belt intermittently and continuously transports the packaging bottles. When a group of packaging bottles reaches the filling point, the cylinder A17 presses down the movable plate 18, so that each needle tube 22 is inserted into the corresponding side of the packaging bottle. Then, the motor 14 drives the transmission shaft to rotate, which in turn drives the bevel gear A, the rotating shaft 10, and the turntable 11 to rotate using the bevel gear B. Two adjacent turntables 11 rotate relative to each other, thereby making the same The squeezing rollers 12 on both sides of the tubing 5 approach synchronously, clamping the tubing 5 from its lower position. Then, the linear module 9 drives the slide 8 upwards, pushing the injection liquid inside the tubing 5 upwards. This allows the injection liquid to enter the packaging bottle from the connecting tube B23 and the needle tube 22, completing the filling. The motor 14 then drives the rotating shaft 10 to rotate in the opposite direction, causing the squeezing rollers 12 to stop squeezing the tubing 5. The linear module 9 pulls down the slide 8 to reset, and the conveyor belt transports the filled packaging bottle away for the next filling operation. When changing to a different size packaging bottle (taking the case where the outer diameter of the new packaging bottle is larger than the original), the new packaging bottle is still conveyed in a close-fitting state. At this time, the bidirectional module 19 is activated, driving the movable plates 18 on both sides to move away synchronously. This causes the scissor lift to extend, increasing the distance between the hinge shafts 243, thereby increasing the distance between each movable frame 20 at equal intervals.

[0026] Example 2

[0027] like Figure 1 and Figure 5As shown, this utility model proposes a linear pumpless filling device for injectable solutions. Compared to Embodiment 1, the top of the support A2 is equipped with an anti-drip mechanism, which includes a retainer 25, a pressure plate 28, and a cylinder B29. Each retainer 25 is connected to the support A2. Each retainer 25 has a tube-passing groove 251 and a pressing groove 252 communicating with the tube-passing groove 251. Each pressing groove 252 is on the same straight line, and each connecting pipe B23 passes through the corresponding side of the pressing groove 252. A support C26 is provided at the top of the support A2. The support C26 is slidably connected to a straight plate 27. A pressure plate 28 is provided at the bottom of the straight plate 27 and is inserted into the pressing groove 252. The body of the cylinder B29 is connected to the support C26, and the output end of the cylinder B29 is connected to the straight plate 27. The lifting drive assembly A includes a cylinder A17. A sliding groove is provided on bracket B15, and a guide rod is installed in the sliding groove. One end of support frame 16 is inserted into the sliding groove and slidably connected thereto, and the guide rod passes through support frame 16 and is slidably connected thereto. The body of cylinder A17 is connected to bracket B15, and the output end of cylinder A17 is connected to support frame 16.

[0028] In this embodiment, when the movable plate lowers its height and the squeezing rollers 12 on both sides of the hose 5 no longer squeeze the hose, the cylinder B29 pulls up the straight plate 27, which in turn drives the pressure plate 28 to rise. The pressure plate 28 no longer applies pressure to the connecting tube B23, thereby causing the pressed part of the connecting tube B23 to reset, and thus causing the connecting tube B23 to draw back the injection solution at the nozzle of the needle tube 22, effectively preventing the injection solution from dripping from the nozzle of the needle tube 22, and thus effectively ensuring that the amount of injection solution in each packaging bottle is consistent.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A linear pumpless filling apparatus for injection solutions, characterized in that, The application relates to a pump-free perfusion device. The base (1) is provided with a support A (2), and a pump-free perfusion mechanism with a plurality of output ports is arranged on the support A (2). The support B (15) is connected with the base (1), and a support frame (16) is slidably connected with the support B (15). The support B (15) is provided with a lifting driving assembly A for driving the support frame (16) to lift. The support frame (16) is provided with two movable plates (18) which are parallel to each other and are slidably connected with the support frame (16). The support frame (16) is provided with a bidirectional module (19) for driving the two movable plates (18) to move towards or away from each other. A plurality of movable frames (20) are arranged on the support frame (16) and are slidably connected with the support frame (16). Each movable frame (20) is located between the two movable plates (18) and is equidistantly distributed along a straight line where the centers of the two movable plates (18) are located. The movable frame (20) is connected with a mounting plate (21). The mounting plate (21) is provided with a needle tube (22) and a connecting pipe B (23) which is in communication with the needle tube (22). The input ends of the connecting pipes B (23) are respectively in communication with the output ports of the corresponding sides of the pump-free perfusion mechanism. A synchronous assembly (24) is located between the two movable plates (18) and is connected with the two movable plates (18) and the movable frames (20). The synchronous assembly (24) drives the movable frames (20) to move towards or away from each other in the state that the two movable plates (18) are driven by the bidirectional module (19) to move towards or away from each other, so as to adjust the distance between the adjacent two needle tubes (22).

2. The linear pumpless filling apparatus for injection solutions according to claim 1, characterized in that, The pump-free perfusion mechanism comprises a hose (5), a flow equalizer (7), a sliding frame (8), a linear module (9), a squeezing roller (12) and a driving assembly. A plurality of sets of clamping plates B (4) and clamping plates A (3) corresponding in up-down direction are arranged on the support A (2). The two ends of the hose (5) are respectively provided with a clamping ring. The two clamping rings are respectively clamped with the clamping plate A (3) and the clamping plate B (4) of the corresponding side. The input end of the hose (5) is in communication with the connecting pipe A (6). The input ends of the connecting pipes B (23) are respectively in communication with the output ends of the corresponding sides of the hose (5). The flow equalizer (7) is connected with the base (1). The input ends of the connecting pipes A (6) are respectively in communication with the shunt pipes of the flow equalizer (7). The sliding frame (8) is located between the clamping plate A (3) and the clamping plate B (4) and is slidably connected with the support A (2). The linear module (9) is connected with the support A (2) and drives the sliding frame (8) to lift. A plurality of rotating shafts (10) are equidistantly arranged on the sliding frame (8) and are rotatably connected with the sliding frame (8). The one ends of the rotating shafts (10) extending out of the sliding frame (8) are coaxially connected with rotating discs (11). The one ends of the rotating shafts (10) away from the rotating discs (11) are coaxially connected with gears (13). The adjacent two gears (13) are meshed with each other. The squeezing rollers (12) are respectively connected with the rotating discs (11) of the corresponding sides and are deviated from the shafts of the rotating discs (11). The hoses (5) are respectively located between the two squeezing rollers (12) of the corresponding sides. The driving assembly is connected with the sliding frame (8) and drives the rotating shafts (10) to rotate synchronously. The directions of rotation of the adjacent two rotating shafts (10) are opposite.

3. A linear pumpless filling apparatus for injection solutions according to claim 2, characterized in that, The driving assembly comprises a motor (14); one rotating shaft (10) is coaxially connected with a bevel gear A; a transmission shaft is arranged on the sliding frame (8) and rotationally connected with the sliding frame (8); the transmission shaft is coaxially connected with a bevel gear B; the bevel gear B is in meshing connection with the bevel gear A; the body of the motor (14) is connected with the sliding frame (8); and the output end of the motor (14) is coaxially connected with the transmission shaft.

4. The linear pumpless filling apparatus for injection solutions according to claim 2, characterized in that, The top end of the support A (2) is provided with a drip-proof mechanism, which comprises a clamping seat (25), a pressing plate (28) and a cylinder B (29); each clamping seat (25) is connected with the support A (2), the clamping seat (25) is provided with a pipe passing groove (251) and a pipe pressing groove (252) in communication with the pipe passing groove (251), each pipe pressing groove (252) is on the same straight line, and each connecting pipe B (23) passes through the corresponding side pipe pressing groove (252); the top end of the support A (2) is provided with a support C (26), the support C (26) is slidingly connected with a straight plate (27), the bottom of the straight plate (27) is provided with a pressing plate (28), and the pressing plate (28) is inserted into the pipe pressing groove (252); the body of the cylinder B (29) is connected with the support C (26), and the output end of the cylinder B (29) is connected with the straight plate (27).

5. The linear pumpless filling apparatus for injection solutions according to claim 1, characterized in that, The lifting driving assembly A comprises a cylinder A (17); a sliding groove is arranged on the support B (15), a guide rod is arranged in the sliding groove, one end of a supporting frame (16) is inserted into the sliding groove and slidingly connected therewith, and the guide rod penetrates through the supporting frame (16) and is slidingly connected therewith; the body of the cylinder A (17) is connected with the support B (15), and the output end of the cylinder A (17) is connected with the supporting frame (16).

6. The linear pumpless filling apparatus for injection solutions according to claim 1, characterized in that, The synchronous assembly (24) comprises connecting rods (241), connecting shafts (242) and hinged shafts (243); the number of the connecting rods (241) is multiple, all the connecting rods (241) are in pairs and rotationally connected at the central part through the hinged shafts (243), and each hinged shaft (243) is connected with the corresponding side movable frame (20); the end portions of two connecting rods (241) of adjacent two groups are rotationally connected through the connecting shafts (242) to form a scissor frame, and the connecting shafts (242) at both ends of the scissor frame are inserted into the corresponding side movable plate (18) and slidingly connected therewith.

7. A linear pumpless filling apparatus for injection solutions according to claim 6, characterized in that, A guide rod is arranged in the supporting frame (16), the guide rod penetrates through the movable plate (18) and each movable frame (20) and is slidingly connected therewith.

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