Liquid medicine filling and packaging device

Abstract

The invention relates to the technical field of medicine bottle manufacturing, and mainly discloses a liquid medicine filling and packaging device which comprises a conveying unit, the conveying unit comprises a disc frame and driving disc sets arranged in parallel, the driving disc sets are arranged in the disc frame, and conveying chain sets are arranged on the driving disc sets in a winding mode; the filling unit is arranged on one side of the conveying chain group and is in butt joint with the bottle bodies on the conveying chain group; the bottle feeding unit is in butt joint with the starting end of the conveying chain set, the filling unit is arranged between the bottle feeding unit and the cap conveying unit, and the tail end of the conveying chain set is further in butt joint with the collecting unit. The problems that defects exist in multiple links of conveying positioning, filling efficiency and precision, bottle cap assembling, welding pretreatment and clamping jaw control in existing plastic medicine bottle filling and packaging, and the requirements for high precision, high sealing and high stability are difficult to meet are solved.

Description

Technical Field

[0001] This invention relates to the technical field of medicine bottle manufacturing, and in particular to a medicine liquid filling and packaging device. Background Technology

[0002] In the pharmaceutical manufacturing sector, the filling and packaging of plastic medicine bottles must meet GMP standards and the demands of large-scale production. However, existing equipment faces several technical bottlenecks. The conveying system lacks positioning accuracy, making bottles prone to shifting during transport, leading to problems such as leaks and scratches on the bottle neck. Furthermore, changing between different bottle sizes is cumbersome and time-consuming, making it difficult to adapt to flexible production needs. The filling process presents a dilemma between efficiency and accuracy. Single-flow filling either results in excessive flow leading to splashing and waste, or insufficient flow causing low production efficiency. While volumetric filling offers improved accuracy, it requires frequent replacement of components adapted to different drug viscosities, and incomplete cleaning can easily lead to batch-to-batch cross-contamination.

[0003] The lack of effective offset correction during bottle cap assembly means that caps are prone to circumferential twisting or axial tilting after being vibrated and fed into the bottle, making precise alignment with the bottle neck difficult and directly affecting the pass rate of subsequent welding seals. Furthermore, there is a risk of cap detachment or edge damage during the cap removal stage. Pre-treatment measures before welding are also inadequate. Uneven preheating of the cap and bottle neck, coupled with a lack of necessary pre-pressure positioning, results in insufficient weld strength and a tendency to generate air bubbles, compromising seal integrity. In addition, the absence of a coordinated gripper control mechanism leads to asynchronous bottle and cap clamping actions, increasing the risk of collisions between the grippers and the filling head. After welding, the cap may also lift with the grippers, and gripper height adjustment relies on manual operation. Equipment malfunctions must be detected through manual inspection, posing a potential risk of mass bottle damage. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the existing plastic medicine bottle filling and packaging has defects in many aspects such as conveying and positioning, filling efficiency and accuracy, bottle cap assembly, welding pretreatment and gripper control, and it is difficult to meet the requirements of high precision, high sealing and high stability.

[0005] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes a liquid filling and packaging device, which includes a conveying unit, including a tray frame and a drive tray group arranged in parallel, the drive tray group being disposed in the tray frame, and a conveyor chain group being disposed on the upper tray of the drive tray group; a filling unit, which is reciprocated on one side of the conveyor chain group and docks with the bottle body on the conveyor chain group; a bottle feeding unit and a cap feeding unit, the bottle feeding unit docking with the starting end of the conveyor chain group, the filling unit being disposed between the bottle feeding unit and the cap feeding unit, and the cap feeding unit being located downstream of the bottle feeding unit, and the end of the conveyor chain group also docking with a collection unit.

[0006] In a preferred embodiment of the liquid filling and packaging device of the present invention: the bottle feeding unit includes a movable guide rail and a movable gripper assembly. The movable guide rail is fixedly disposed on one side of the tray frame, the movable gripper assembly is slidably connected to the movable guide rail, and the bottle body is fixed on the movable gripper assembly.

[0007] In a preferred embodiment of the liquid filling and packaging device of the present invention: the drive disk group includes a first turntable and a second turntable, the first turntable and the second turntable have the same structure; the first turntable includes a first toothed disk, a second toothed disk and a docking disk arranged coaxially, the three of which are fixedly sleeved on the outside of the first rotating shaft in sequence.

[0008] In a preferred embodiment of the liquid filling and packaging device of the present invention: the tray frame includes a symmetrically arranged rotary box and a guide plate group connected to the rotary box, and a plurality of support frames are connected between the guide plate groups; the support frame includes a connecting beam and support legs symmetrically connected to its bottom, and a receiving frame is fixed on the support leg, and the plane of the receiving frame is parallel to the plane of the rotary box.

[0009] In a preferred embodiment of the liquid filling and packaging device of the present invention: the rotary box includes a sealing plate and an arc plate arranged parallel to each other, a rotation gap is formed between the sealing plate and the arc plate, connecting columns are fixedly connected at equal intervals on the outer edge of the arc plate, and the other end of the connecting column is fixedly connected to the arc plate; a connecting rod is fixedly connected to the top of the sealing plate, and the other end of the connecting rod is fixedly connected to the connecting beam.

[0010] In a preferred embodiment of the liquid filling and packaging device of the present invention: the guide plate assembly includes an inner side plate and an outer side plate arranged in parallel, and the two ends of the inner side plate and the outer side plate are fixedly connected to the two side rotary boxes; a guide gap is formed between the inner side plate and the outer side plate, the outer side plate includes a side sealing plate and an inner guide plate, and an inner guide gap is opened in both the inner guide plate and the inner side plate; the connecting beam connects the inner guide plate and the inner side plate, and a pad is fixedly connected between the support leg and the inner side plate.

[0011] In a preferred embodiment of the liquid filling and packaging device of the present invention: the receiving frame includes symmetrically arranged U-shaped receiving plates, and receiving rods are symmetrically fixedly connected between the U-shaped receiving plates; a first adjusting slide is fixedly connected to the top of one side of the U-shaped receiving plate, and a second adjusting slide is fixedly connected to the top of the other side of the U-shaped receiving plate; the first adjusting slide extends to one receiving rod, and a third adjusting slide is fixedly connected to the other receiving rod; a filling area, a pressing area, and a welding area are sequentially formed between the first adjusting slide, the second adjusting slide, and the third adjusting slide.

[0012] In a preferred embodiment of the liquid filling and packaging device of the present invention: an extension block is fixed to the outside of the support leg, and a first guide rod and a second guide rod are fixedly connected in parallel to the top of the extension block, and a guide groove is formed between the first guide rod and the second guide rod.

[0013] In a preferred embodiment of the liquid filling and packaging device of the present invention: the conveyor chain group includes several sets of docking jaws connected end to end, the docking jaws include symmetrically arranged guide rods, the bottom of the guide rods are fixedly connected to a first jaw group, and the top of the guide rods are also slidably fixed to a second jaw group; both the first jaw group and the second jaw group include a first clamping plate and a second clamping plate that mesh with each other, and the first clamping plate and the second clamping plate are respectively rotatably sleeved on the outside of the guide rods.

[0014] In a preferred embodiment of the liquid filling and packaging device of the present invention: an extension rod is fixedly connected to the outer wall of the second clamping plate away from its clamping end, a first roller is rotatably connected to the extension rod, and a second roller is rotatably connected to both ends of the guide rod; the two ends of the two guide rods in the same group are fixed by a first connecting plate, and the two guide rods of two adjacent sets of mating jaws are fixed by a second connecting plate, and a third roller is rotatably connected to the side wall of the first connecting plate; an adjusting sleeve is also fixedly connected to the top of the second jaw group, an adjusting block is fixedly connected to the side wall of the adjusting sleeve, and a fourth roller is rotatably connected to the adjusting block.

[0015] In a preferred embodiment of the liquid filling and packaging device of the present invention: the bottom third roller makes rolling contact with the top of the first guide rod and the second guide rod; the top third roller is rolled within the inner guide gap; the top and bottom second rollers are rolled within the guide gap and guide groove, respectively; the fourth roller makes rolling contact with the top of the receiving frame; the toothed blocks on the first turntable and the second turntable are respectively movably inserted between the top and bottom second rollers.

[0016] In a preferred embodiment of the liquid filling and packaging device of the present invention: a stabilizing plate is horizontally fixedly connected between the supporting legs, and a first adjusting plate, a second adjusting plate and a third adjusting plate are respectively fixedly connected to the top of the stabilizing plate; the first adjusting plate is disposed at the junction of the first adjusting slide and the filling area, the second adjusting plate is disposed at the junction of the second adjusting slide and the pressing area, and the third adjusting plate is disposed at the junction of the third adjusting slide and the welding area.

[0017] In a preferred embodiment of the liquid filling and packaging device of the present invention: a first filling body and a second filling body are fixedly connected on the filling unit, and the liquid outlet ends of the first filling body and the second filling body are connected to the filling head; the bottle mouth is fixed in the clamping groove of the first clamping claw group, and the filling head passes through the clamping grooves of the second clamping claw group and the first clamping claw group in sequence and extends into the bottle body.

[0018] In a preferred embodiment of the liquid filling and packaging device of the present invention: the cap feeding unit includes a feeding tray, a feeding rail and a rotating disk, the feeding rail connects the feeding tray and the rotating disk, the bottle cap is placed in a cap-separating groove opened on the rotating disk, and the clamping groove of the second gripper group corresponds to the cap-separating groove.

[0019] In a preferred embodiment of the liquid filling and packaging device of the present invention: a first deflector is fixedly provided at the bottom of the U-shaped receiving plate on one side, the first deflector is located at the corresponding position of the cap feeding unit, and the first deflector contacts the first roller in the second gripper group; a second deflector and a third deflector are fixedly provided at the bottom of the U-shaped receiving plate on the other side, the second deflector and the third deflector are located at the corresponding position of the collecting unit, and the second deflector and the third deflector contact the first roller in the second gripper group and the first roller in the first gripper group respectively in turn; a fourth deflector is also provided at the bottom of the U-shaped receiving plate, the fourth deflector is located at the corresponding position of the moving gripper group.

[0020] In a preferred embodiment of the liquid filling and packaging device of the present invention: the collection unit includes a turntable and a set of collecting claws circumferentially fixed on its edge, the set of collecting claws gripping the bottle in the first set of claws.

[0021] In a preferred embodiment of the liquid filling and packaging device of the present invention: a heating unit is also provided on one side of the welding area, and a heating plate is provided on it between the first gripper group and the second gripper group.

[0022] In a preferred embodiment of the liquid filling and packaging device of the present invention: a cleaning unit and a flipping unit are also provided on one side of the conveying unit, and several sets of bottles are fixed in the flipping unit, and the bottle mouths of the several sets of bottles correspond to the cleaning end of the cleaning unit; the flipping unit flips the bottles and sends the bottles into the moving gripper group of the bottle inlet unit.

[0023] The beneficial effects of this invention are as follows: 1. This device adopts a "multi-roller-gap guide" structure, combined with a drive disc assembly for bidirectional synchronous drive, which greatly improves the positioning accuracy of bottle conveying and avoids problems such as leakage and scratches caused by deviation; at the same time, the modular quick change-up design can adapt to multiple sizes of medicine bottles without disassembling the whole machine, significantly shortening the change-up time and meeting the needs of flexible production.

[0024] 2. The dual-filler stepped filling design, through the synergy of "high-flow rapid filling + low-flow supplemental filling", not only improves production efficiency, but also controls the filling error to a very low range. In addition, the anti-drip structure of the filling head prevents residual liquid from dripping, reducing waste and meeting the requirement of no cross-contamination of the production environment.

[0025] 3. The cap feeding unit, in conjunction with the downward correction mechanism, can accurately correct the circumferential and axial offset of the bottle cap, ensuring that the bottle cap and the bottle mouth are coaxially aligned. Combined with stable gripper force control, it reduces the risk of bottle cap falling off and being damaged, laying a good foundation for subsequent welding and sealing, and improving the assembly qualification rate.

[0026] 4. The preheating unit in the welding area ensures uniform preheating of the contact area between the bottle cap and the bottle mouth. Combined with the pre-pressure positioning structure, it ensures that the two fit tightly before welding, effectively reducing the problems of air bubbles and incomplete welds, and significantly improving the sealing performance and shelf-life stability of the medicine.

[0027] 5. From the moment the bottle is placed into the bottle in the bottle-feeding unit until the filling and capping processes are completed, the bottles are never handed over again during this process, thus avoiding the problem of contamination of the medicine by environmental dust, mechanical debris and other foreign matter introduced due to multiple bottle handovers. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 The overall structure diagram of the liquid filling and packaging device is shown; Figure 2 The diagram shows the bottle-feeding unit structure of the liquid filling and sealing device; Figure 3 The diagram shows the structural diagram of the conveying unit of the liquid filling and packaging device; Figure 4 A diagram showing the tray frame structure of the liquid medicine filling and packaging device is provided. Figure 5 A structural diagram of the rotary box of the liquid filling and packaging device is shown; Figure 6 The diagram shows the connection between the guide plate assembly and the support frame of the liquid filling and packaging device; Figure 7 It shows Figure 6 Enlarged view at point M; Figure 8 The diagram shows the structure of the receiving frame for the liquid filling and packaging device; Figure 9 A diagram showing the distribution of the filling area, pressing area, and welding area of ​​the liquid filling and packaging device is provided. Figure 10 The diagram shows the connection between the conveyor chain assembly and the drive disc assembly of the liquid medicine filling and packaging device; Figure 11 A diagram showing the docking gripper structure of the liquid filling and packaging device is provided. Figure 12 The diagram shows the installation of the docking grippers in the liquid filling and packaging device; Figure 13 The diagram shows the structural diagram of the filling unit of the liquid filling and packaging device; Figure 14 The diagram shows the connection between the cap feeding unit and the conveying unit of the liquid medicine filling and packaging device; Figure 15 The diagram shows the installation location of the heating unit in the liquid filling and packaging device; Figure 16 A structural diagram of the collection unit of the liquid medicine filling and packaging device is shown; Figure 17 The diagram shows the installation distribution of the first, second, and third dial plates of the liquid filling and packaging device. Figure 18 A schematic diagram of the working process of the flipping unit of the liquid filling and packaging device is shown; Figure 19 The diagram shows the bottle delivery process of the flipping unit and moving gripper assembly in the liquid filling and sealing device. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0030] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0031] Reference Figures 1 to 19 This embodiment provides a liquid filling and packaging device, which includes a conveying unit 100, including a tray frame 101 and a drive tray group 102 arranged in parallel. The drive tray group 102 is disposed in the tray frame 101 and is driven by a servo motor to achieve synchronous rotation. The drive tray group 102 is provided with a conveying chain group 103 on the upper tray. The conveying chain group 103 can move cyclically along the tray frame 101 as the drive tray group 102 rotates, so as to realize the continuous conveying of bottle A.

[0032] The filling unit 200 is reciprocated on one side of the conveyor chain assembly 103 and precisely docks with the bottle A on the conveyor chain assembly 103 to ensure no leakage of medicine during the filling process; at the same time, the filling unit 200 is connected to the external medicine storage tank through a food-grade hose, which can replenish the medicine in real time.

[0033] It should be noted that during the filling process, the filling unit 200 will move synchronously with the conveyor chain group 103, so that the bottle A is filled while it is moving, thereby improving the filling efficiency. The filling unit 200 can be slidably connected to the mounting frame and is driven by a servo motor + synchronous belt / gear rack to realize the reciprocating movement of the filling unit 200 as a whole.

[0034] The bottle feeding unit 300 and the cap feeding unit 400 are connected to the starting end of the conveyor chain group 103. The bottle feeding unit 300 is used to smoothly transfer the empty bottle A conveyed by the external feeding mechanism to the conveyor chain group 103. The filling unit 200 is set between the bottle feeding unit 300 and the cap feeding unit 400 so that the bottle A is filled first and then capped. The end of the conveyor chain group 103 is also connected to the collection unit 500 to facilitate the unified collection of the sealed finished bottles.

[0035] The bottle feeding unit 300 includes a movable guide rail 301 and a movable gripper assembly 302. The movable guide rail 301 is fixed to one side of the tray frame 101 by bolts. The movable gripper assembly 302 is slidably connected to the movable guide rail 301 by a slider and is driven by a pneumatic cylinder to move back and forth along the guide rail. The bottle A is fixed to the movable gripper assembly 302 by the elastic clamping of the gripper, ensuring that the bottle A does not tilt or invert during the transfer process.

[0036] The drive disk assembly 102 includes a first turntable 102a and a second turntable 102b. The first turntable 102a and the second turntable 102b have the same structure and correspond to the top and bottom of the conveyor chain assembly 103, respectively, to realize bidirectional driving and positioning of the conveyor chain assembly 103.

[0037] The first turntable 102a includes a first toothed disc 102a-1, a second toothed disc 102a-2, and a docking disc 102a-3 arranged coaxially. The three are connected by a key and fixedly sleeved on the outside of the first rotating shaft 102a-4. The tooth spacing of the first toothed disc 102a-1 and the second toothed disc 102a-2 is adapted to the roller spacing of the conveyor chain assembly 103 for meshing and driving the conveyor chain assembly 103 to move. The docking disc 102a-3 plays the role of auxiliary support for the conveyor chain assembly 103.

[0038] The tray frame 101 includes a symmetrically arranged rotary box 101a and a guide plate group 101b connecting the rotary box 101a. Several sets of support frames 101c are welded together between the guide plate groups 101b. The support frames 101c are used to enhance the overall structural strength of the tray frame 101 and prevent shaking during equipment operation.

[0039] The support frame 101c includes a connecting beam 101c-1 and support legs 101c-2 symmetrically welded to its bottom. Adjustable foot pads can be installed on the bottom of the support legs 101c-2 to facilitate adjustment of the level of the disc frame 101. A receiving frame 101d is fixed to the support legs 101c-2 by bolts. The plane of the receiving frame 101d is parallel to the plane of the rotary box 101a to ensure that the conveyor chain group 103 moves smoothly above the receiving frame 101d.

[0040] The rotary box 101a includes a sealing plate 101a-1 and an arc-shaped plate 101a-2 arranged parallel to each other. A rotation gap X1 is formed between the sealing plate 101a-1 and the arc-shaped plate 101a-2. This gap is used to accommodate the turning part of the conveyor chain group 103 and avoid motion interference. The outer edge of the arc-shaped plate 101a-2 is welded and fixedly connected with connecting columns 101a-2a at equal intervals. The other end of the connecting column 101a-2a is welded and fixed to the arc-shaped plate 101a-2 to further strengthen the structural stability of the arc-shaped plate 101a-2.

[0041] A connecting rod 101a-1a is welded and fixedly connected to the top of the sealing plate 101a-1. The other end of the connecting rod 101a-1a is fixedly connected to the connecting beam 101c-1 by bolts, so as to achieve a stable connection between the rotary box 101a and the support frame 101c.

[0042] The guide plate assembly 101b includes an inner side plate 101b-1 and an outer side plate 101b-2 arranged in parallel. The inner side plate 101b-1 and the outer side plate 101b-2 are fixedly connected to the two side rotary boxes 101a by bolts at both ends, forming a straight conveying channel of the conveyor chain assembly 103.

[0043] A guide gap X2 is formed between the inner side plate 101b-1 and the outer side plate 101b-2. This gap is used to limit the movement trajectory of the rollers of the conveyor chain assembly 103. The outer side plate 101b-2 includes a side sealing plate 101b-2a and an inner guide plate 101b-2b. Both the inner guide plate 101b-2b and the inner side plate 101b-1 are provided with an inner guide gap X3. The inner guide gap X3 is adapted to the rollers of the conveyor chain assembly 103 to ensure accurate conveying direction.

[0044] The connecting beam 101c-1 is bolted to the inner guide plate 101b-2b and the inner side plate 101b-1. The support leg 101c-2 is bolted to the inner side plate 101b-1 and a pad 101b-1a is fixedly connected. The pad 101b-1a is used to adjust the height of the inner side plate 101b-1 so that the inner guide gap X3 is adapted to the conveyor chain group 103.

[0045] The receiving frame 101d includes symmetrically arranged U-shaped receiving plates 101d-1, and receiving rods 101d-2 are symmetrically welded and fixedly connected between the U-shaped receiving plates 101d-1. The receiving rods 101d-2 are used to support the bottom structure of the conveyor chain assembly 103.

[0046] The top of the U-shaped receiving plate 101d-1 on one side is fixedly connected to the first adjusting slide 101d-1a by bolts, and the top of the U-shaped receiving plate 101d-1 on the other side is fixedly connected to the second adjusting slide 101d-1b by bolts. The adjusting slides are used to cooperate with the gripper assembly that can move up and down in the conveyor chain group 103 to change the height of the gripper assembly.

[0047] The first adjusting slide 101d-1a extends to a receiving rod 101d-2, and the third adjusting slide 101d-1c is fixedly connected to the other receiving rod 101d-2 by bolts.

[0048] The first adjusting slide 101d-1a, the second adjusting slide 101d-1b, and the third adjusting slide 101d-1c form a filling area Q1, a pressing area Q2, and a welding area Q3 in sequence. Each area corresponds to an independent working mechanism to ensure that each process is carried out in an orderly manner.

[0049] In the filling area Q1, the filling unit 200 injects the medicine into the bottle A. In the pressing area Q2, the tilt of the bottle cap C is adjusted. In the welding area Q3, the bottle cap C and the bottle A are in a tight fit to achieve welding.

[0050] An extension block 101c-2a is welded and fixed to the outside of the support leg 101c-2. The top of the extension block 101c-2a is connected to a first guide rod 101c-2b and a second guide rod 101c-2c by bolts. A guide groove X4 is formed between the first guide rod 101c-2b and the second guide rod 101c-2c. The guide groove X4 is adapted to the bottom roller of the conveyor chain group 103 to help the conveyor chain group 103 maintain horizontal movement.

[0051] The conveyor chain assembly 103 includes several sets of docking grippers 103a connected end to end. Each docking gripper 103a includes symmetrically arranged guide rods 103e. A first gripper assembly 103b is welded and fixed to the bottom of the guide rod 103e. The first gripper assembly 103b is used to hold and fix the bottle body A. A second gripper assembly 103c is also slidably fixed to the top of the guide rod 103e via a slider. The second gripper assembly 103c is used to subsequently hold the bottle cap C.

[0052] Both the first gripper group 103b and the second gripper group 103c include a first clamping plate 103b-1 and a second clamping plate 103b-2 that mesh with each other. The first clamping plate 103b-1 and the second clamping plate 103b-2 are respectively rotatably sleeved on the outside of the guide rod 103e through bearings. A silicone pad can be installed on the inner side of the clamping plate to avoid damaging the bottle body A or the bottle cap C.

[0053] An extension rod 103b-2a is welded and fixedly connected to the outer wall of the second clamping plate 103b-2 away from its clamping end. A first roller L1 is rotatably connected to the extension rod 103b-2a via a pin. The first roller L1 is used to cooperate with the external lever plate to control the opening and closing of the clamping plate. The two ends of the guide rod 103e are also rotatably connected to the second roller L2 via bearings. The second roller L2 is used to roll and guide within the gap of the disc frame 101.

[0054] The two guide rods 103e in the same group are welded and fixed at both ends by the first connecting plate 103e-1 to ensure that the guide rods 103e in the same group move synchronously. The two guide rods 103e of the two adjacent docking jaws 103a are fixed by bolts through the second connecting plate 103e-2 to realize the connection between the head and tail of the conveyor chain group 103. The side wall of the first connecting plate 103e-1 is rotatably connected to the third roller L3 by the pin shaft. The third roller L3 is used to assist the conveyor chain group 103 in moving on the receiving frame 101d.

[0055] An adjusting sleeve 103d is also fixedly connected to the second gripper assembly 103c at the top by bolts. An adjusting block 103d-1 is welded and fixedly connected to the side wall of the adjusting sleeve 103d. A fourth roller L4 is rotatably connected to the adjusting block 103d-1 by a pin. The fourth roller L4 rolls in contact with the top of the receiving frame 101d. The height of the second gripper assembly 103c can be adjusted by adjusting the adjusting sleeve 103d.

[0056] The bottom third roller L3 makes rolling contact with the top of the first guide rod 101c-2b and the second guide rod 101c-2c. The top third roller L3 is rolled within the inner guide gap X3. The top and bottom second rollers L2 are rolled within the guide gap X2 and guide groove X4, respectively. The fourth roller L4 makes rolling contact with the top of the receiving frame 101d. The cooperation of multiple sets of rollers ensures that the conveyor chain group 103 moves smoothly and has a precise trajectory.

[0057] The toothed blocks on the first turntable 102a and the second turntable 102b are respectively movably inserted between the top and bottom second rollers L2. Through the meshing of the toothed blocks and the rollers, the conveyor chain group 103 is driven to move synchronously with the turntable.

[0058] A stabilizing plate 101e is horizontally welded and fixed between the support legs 101c-2. The stabilizing plate 101e is used to enhance the overall stability of the support legs 101c-2. The top of the stabilizing plate 101e is fixedly connected with a first adjusting plate 101e-1, a second adjusting plate 101e-2, and a third adjusting plate 101e-3 by bolts. The surface of the adjusting plate is smooth and is used to cooperate with the rollers of the gripper and the first adjusting slide 101d-1a, the second adjusting slide 101d-1b, and the third adjusting slide 101d-1c to realize the vertical movement limit control of the second gripper group 103c.

[0059] The first adjusting plate 101e-1 is located at the junction of the first adjusting slide 101d-1a and the filling area Q1. It is used to trigger the second gripper assembly 103c to move downward when the bottle A enters the filling area Q1, so as to avoid the second gripper assembly 103c from colliding with the filling component extending from the filling unit 200. The second adjusting plate 101e-2 is located at the junction of the second adjusting slide 101d-1b and the pressing area Q2. It is used to trigger the second gripper assembly 103b to move the bottle cap C downward and slightly squeeze the bottle mouth below to adjust its position, so as to avoid the second gripper assembly 103b from shifting its grip after gripping the bottle cap C. Appropriate downward adjustment can make the second gripper assembly 103b horizontally clamp the bottle cap C. The third adjusting plate 101e-3 is located at the junction of the third adjusting slide 101d-1c and the welding area Q3. It is used to maintain the state of tight contact between the heated bottle mouth and the bottle cap C, so as to ensure that the bottle cap C is firmly welded.

[0060] The filling unit 200 is fixed with a first filling body 201 and a second filling body 202 connected by a flange. Both the first filling body 201 and the second filling body 202 contain liquid medicine and are connected to a filling pressure device. It should be noted that the first filling body 201 and the second filling body 202 are of different sizes. At the beginning of filling, the larger second filling body 202 quickly injects a large amount of liquid medicine into the medicine bottle. After the liquid medicine in the second filling body 202 is emptied, the medicine bottle is almost full. Then the first filling body 201 is opened to continue injecting liquid medicine into the medicine bottle at a smaller flow rate. When the first filling body 201 is emptied, the liquid medicine in the medicine bottle reaches the required amount. This process ensures accurate dosage and avoids liquid medicine splashing. The liquid outlets of the first filling body 201 and the second filling body 202 are connected to the filling head 203 through pipes. A solenoid valve is installed on the pipes to control the start and stop of filling.

[0061] The bottle mouth of bottle A is elastically fixed by the clamping groove B of the first clamping jaw assembly 103b. The filling head 203 passes through the clamping groove B of the second clamping jaw assembly 103c and the first clamping jaw assembly 103b in sequence and extends into the bottle A. The bottom of the filling head 203 is provided with an anti-drip structure to prevent residual medicine from dripping after filling.

[0062] The cap feeding unit 400 includes a feeding tray 401, a feeding rail 402, and a rotating disk 403. The feeding tray 401 is a vibrating feeding tray, used to arrange the bottle caps C in an orderly manner and transport them to the feeding rail 402. The feeding rail 402 connects the feeding tray 401 and the rotating disk 403 through a bracket. The bottle caps C slide along the feeding rail 402 into the rotating disk 403. The rotating disk 403 is driven by a stepper motor to rotate in an indexing manner. The bottle caps C are placed in the cap-separating slot 403a opened on the rotating disk 403. The clamping slot B of the second gripper group 103c corresponds to the position of the cap-separating slot 403a to ensure that the bottle caps C can be accurately clamped.

[0063] A first push plate B1 is fixedly installed at the bottom of the U-shaped receiving plate 101d-1 on one side by bolts. The first push plate B1 is located at the corresponding position of the cap feeding unit 400, and the first push plate B1 is in contact with the first roller L1 in the second gripper group 103c. When the conveyor chain group 103 drives the second gripper group 103c to move to the cap feeding unit 400, the first push plate B1 pushes the first roller L1, so that the second gripper group 103c opens and clamps the bottle cap C in the cap slot 403a.

[0064] On the other side, a second lever plate B2 and a third lever plate B3 are fixedly installed at the bottom of the U-shaped receiving plate 101d-1 by bolts. The second lever plate B2 and the third lever plate B3 are located at corresponding positions in the collection unit 500, and the second lever plate B2 and the third lever plate B3 respectively contact the first roller L1 in the second gripper group 103c and the first roller L1 in the first gripper group 103b. When the finished bottle moves to the collection unit 500, the second lever plate B2 first pushes the roller of the second gripper group 103c. The second gripper assembly 103c releases the bottle cap C, and in conjunction with the first adjusting slide 101d-1a, the second gripper assembly 103c is raised as a whole, thus separating the second gripper assembly 103c from the bottle cap C. At this time, the filled bottle A is only gripped and moved by the first gripper assembly 103b. Then, the third lever B3 pushes the roller of the first gripper assembly 103b, causing the first gripper assembly 103b to release the bottle A, and the bottle A is handed over to the receiving gripper assembly 502 of the collecting unit 500.

[0065] The bottom of the U-shaped receiving plate 101d-1 is also provided with a fourth deflector plate B4. The fourth deflector plate B4 is located at the corresponding position of the movable gripper assembly 302 and is fixed to the pneumatic device. The pneumatic device can control the fourth deflector plate B4 to move laterally. During the process of the movable gripper assembly 302 handing the bottle to the conveyor chain assembly 103, the fourth deflector plate B4 pushes the extension rod 103b-2a of the first gripper assembly 103b in the corresponding area, driving the first gripper assembly 103b to open. Then, the movable gripper assembly 302 moves forward and puts the bottle A into the clamping groove B. The fourth deflector plate B4 retracts. After the first gripper assembly 103b clamps the bottle, the pneumatic device on the movable gripper assembly 302 controls the grippers on it to open. Then, the movable gripper assembly 302 moves backward and disengages from the bottle A, thus completing the bottle handing operation.

[0066] The collection unit 500 includes a turntable 501 and a collection gripper assembly 502 that is circumferentially fixed to its edge by bolts. The opening and closing of the collection gripper assembly 502 is also achieved by the movement of a lever. The turntable 501 is driven by a servo motor, and its rotation speed is adapted to the speed of the conveyor chain assembly 103. During the rotation of the turntable 501, the collection gripper assembly 502 accurately grips the loose bottle A in the first gripper assembly 103b and transports it to the subsequent conveyor belt or collection box.

[0067] A heating unit is also provided on one side of the welding area Q3. The heating unit is fixed on the tray 101 by a bracket. The heating plate on it is an electric heating plate. The temperature can be adjusted by a temperature controller. The heating plate is located between the first clamping jaw group 103b and the second clamping jaw group 103c. It is used to preheat the contact part between the bottle cap C and the bottle body A to prepare for subsequent welding and sealing, and to ensure welding strength and sealing performance.

[0068] A cleaning unit and a flipping unit are also provided on one side of the conveying unit 100. Several sets of bottles A are fixed in the flipping unit, and the bottle mouths of several sets of bottles A correspond to the cleaning end of the cleaning unit. The flipping unit flips the bottles A and sends the bottles A into the movable gripper group 302 of the bottle inlet unit 300.

[0069] The cleaning unit is located between the bottle forming device and the conveying unit 100. During use, after the bottle A is formed in the bottle forming device, it is sent to the corresponding position of the flipping unit by the corresponding conveying component, and the gripper group on the flipping unit completes the operation of the bottle A. At the same time, the mouth of the inverted bottle A is aligned with the cleaning end of the cleaning unit, and the cleaning unit immediately performs a cleaning operation on the inside of the bottle A. This operation can greatly reduce the static electricity intensity inside the bottle A, and further reduce the risk of contamination inside the bottle A.

[0070] Furthermore, after bottle A is cleaned, the flipping unit drives bottle A to rotate with the bottle opening facing upwards, and completes the handover of the bottle with the moving gripper group 302 of the bottle infeed unit 300. At this time, bottle A is further sent to the conveyor chain group 103.

[0071] In summary, this liquid medicine filling and packaging device, through the coordinated operation of the conveying unit 100, filling unit 200, bottle feeding unit 300, cap feeding unit 400, collection unit 500, and heating unit, achieves fully automated operation of plastic medicine bottles from empty bottle loading to finished product packaging and collection. The overall working principle is as follows: After the device is started, the moving gripper group 302 of the bottle feeding unit 300 moves back and forth along the moving guide rail 301 under the drive of the pneumatic cylinder, and smoothly transfers the empty bottle A conveyed by the external feeding mechanism to the conveying chain group 103 of the conveying unit 100 through elastic clamping.

[0072] The conveyor chain assembly 103 is driven by the parallel drive disc assembly 102. Through the meshing of the toothed disc and the rollers of the conveyor chain assembly, the docking jaws 103a connected at both ends are driven to move cyclically along the disc frame 101. With the cooperation of multiple sets of rollers (second roller L2, third roller L3, fourth roller L4) and the gaps between the disc frame (guide gap X2, inner guide gap X3, guide groove X4), the conveying trajectory is accurate and the movement is stable.

[0073] When empty bottle A enters the filling area Q1 (formed by the area between the first adjusting slide 101d-1a and the second adjusting slide 101d-1b) along with the conveyor chain 103, the first adjusting plate 101e-1 triggers the second gripper group 103c to move downwards to avoid collision with the filling components of the filling unit 200; at the same time, the first gripper group 103b elastically fixes the bottle mouth of bottle A through the clamping groove B, and the first filling body 201 and the second filling body 202 of the filling unit 200 work together; firstly, the second filling body 202 quickly injects a large amount of medicine into the bottle at a high flow rate, and after it is emptied, the first filling body 201 replenishes it at a low flow rate until the medicine is accurately measured. The anti-drip structure at the bottom of the filling head 203 prevents residual medicine from dripping. After filling is completed, the conveyor chain continues to drive bottle A to rotate.

[0074] Subsequently, bottle A enters the second adjusting slide 101d-1b, and the second gripper assembly 103c is lifted. At this time, the cap feeding unit 400 has arranged the bottle caps C in an orderly manner through the vibrating feeding plate 401, and transported them to the cap-separating groove 403a of the rotating disk 403 via the feeding rail 402. The rotating disk 403 rotates in increments to align the bottle caps C with the clamping groove B of the second gripper assembly 103c. The first lever B1 pushes the first roller L1 of the second gripper assembly 103c to open it and accurately clamp the bottle caps C.

[0075] Subsequently, bottle A enters the pressing area Q2 (the area between the second adjusting slide 101d-1b and the third adjusting slide 101d-1c), and at the same time, the second adjusting plate 101e-2 triggers the second gripper group 103c to move the bottle cap C down, which slightly squeezes the bottle mouth of bottle A below, corrects the offset of the bottle cap C, and ensures that the bottle cap C is coaxially aligned with the bottle mouth.

[0076] After the bottle cap C is adjusted, the second gripper group 103c moves along the inclined surface of the third adjusting slide 101d-1c to above the third adjusting slide 101d-1c. A heating gap is formed between the second gripper group 103c and the first gripper group 103b. The electric heating plate of the heating unit preheats the contact area between the bottle cap C and the bottle body A, laying the foundation for welding and sealing. After heating, the bottle body A and the bottle cap C then enter the welding area Q3 (the area between the third adjusting slide 101d-1c and the first adjusting slide 101d-1a) along with the conveyor chain. The third adjusting plate 101e-3 cooperates with the third adjusting slide 101d-1c to maintain the relative position of the second gripper group 103c and the first gripper group 103b, ensuring that the preheated bottle cap C fits tightly with the bottle mouth, ensuring the subsequent welding strength and sealing performance.

[0077] After welding, the finished bottle flows to the corresponding position of the collection unit 500 along the conveyor chain. The second deflector B2 first pushes the first roller L1 of the second gripper group 103c to loosen the bottle cap C. At the same time, the first adjusting slide 101d-1a raises the second gripper group 103c as a whole to achieve complete separation from the bottle cap C. Then, the third deflector B3 pushes the first roller L1 of the first gripper group 103b to loosen the bottle body A. The turntable 501 of the collection unit 500 drives the collection gripper group 502 to accurately pick up the loosened finished bottle and transport it to the downstream conveyor belt or collection box, finally completing the entire liquid filling and packaging process.

[0078] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A pharmaceutical liquid filling and packaging device, characterized in that: include, The conveying unit (100) includes a tray frame (101) and a drive tray group (102) arranged in parallel. The drive tray group (102) is located inside the tray frame (101), and a conveyor chain group (103) is provided on the drive tray group (102). A filling unit (200) is reciprocated on one side of a conveyor chain assembly (103) and docks with a bottle (A) on the conveyor chain assembly (103); The bottle feeding unit (300) and the cap feeding unit (400) are connected to the starting end of the conveyor chain assembly (103). The filling unit (200) is located between the bottle feeding unit (300) and the cap feeding unit (400), and the cap feeding unit (400) is located downstream of the bottle feeding unit (300). The end of the conveyor chain assembly (103) is also connected to the collection unit (500).

2. The liquid filling and packaging device according to claim 1, characterized in that: The bottle feeding unit (300) includes a movable guide rail (301) and a movable gripper assembly (302). The movable guide rail (301) is fixedly mounted on one side of the tray frame (101), and the movable gripper assembly (302) is slidably connected to the movable guide rail (301). The bottle body (A) is fixed to the movable gripper assembly (302).

3. The liquid filling and packaging apparatus according to claim 1 or 2, characterized in that: The drive disk assembly (102) includes a first turntable (102a) and a second turntable (102b), and the first turntable (102a) and the second turntable (102b) have the same structure; The first turntable (102a) includes a first toothed disc (102a-1), a second toothed disc (102a-2), and a mating disc (102a-3) arranged coaxially, which are sequentially fixedly sleeved on the outside of the first rotating shaft (102a-4).

4. The liquid filling and packaging device according to claim 3, characterized in that: The tray frame (101) includes a symmetrically arranged rotary box (101a) and a guide plate group (101b) connecting the rotary box (101a), and a number of support frames (101c) are connected between the guide plate groups (101b). The support frame (101c) includes a connecting beam (101c-1) and a support leg (101c-2) symmetrically connected to its bottom. A receiving frame (101d) is fixed on the support leg (101c-2), and the plane of the receiving frame (101d) is parallel to the plane of the rotary box (101a).

5. The liquid filling and packaging device according to claim 4, characterized in that: The rotary box (101a) includes a sealing plate (101a-1) and an arc-shaped plate (101a-2) arranged parallel to each other. A rotation gap (X1) is formed between the sealing plate (101a-1) and the arc-shaped plate (101a-2). A connecting column (101a-2a) is fixedly connected at equal intervals to the outer edge of the arc-shaped plate (101a-2). The other end of the connecting column (101a-2a) is fixedly connected to the arc-shaped plate (101a-2). A connecting rod (101a-1a) is fixedly connected to the top of the sealing plate (101a-1), and the other end of the connecting rod (101a-1a) is fixedly connected to the connecting beam (101c-1).

6. The liquid filling and packaging apparatus according to claim 4 or 5, characterized in that: The guide plate assembly (101b) includes an inner side plate (101b-1) and an outer side plate (101b-2) arranged in parallel. The two ends of the inner side plate (101b-1) and the outer side plate (101b-2) are fixedly connected to the two side rotary boxes (101a). A guide gap (X2) is formed between the inner side plate (101b-1) and the outer side plate (101b-2). The outer side plate (101b-2) includes a side sealing plate (101b-2a) and an inner guide plate (101b-2b). An inner guide gap (X3) is provided in both the inner guide plate (101b-2b) and the inner side plate (101b-1). The connecting beam (101c-1) connects the inner guide plate (101b-2b) and the inner side plate (101b-1), and a pad (101b-1a) is fixedly connected between the support leg (101c-2) and the inner side plate (101b-1).

7. The liquid filling and packaging apparatus according to claim 6, characterized in that: The support frame (101d) includes symmetrically arranged spiral support plates (101d-1), and support rods (101d-2) are symmetrically fixedly connected between the spiral support plates (101d-1). A first adjusting slide (101d-1a) is fixedly connected to the top of the U-shaped support plate (101d-1) on one side, and a second adjusting slide (101d-1b) is fixedly connected to the top of the U-shaped support plate (101d-1) on the other side. The first adjusting slide (101d-1a) extends to a receiving rod (101d-2), and a third adjusting slide (101d-1c) is fixedly connected to the other receiving rod (101d-2). The first adjusting slide (101d-1a), the second adjusting slide (101d-1b), and the third adjusting slide (101d-1c) form a filling area (Q1), a pressing area (Q2), and a welding area (Q3) in sequence.

8. The liquid filling and packaging apparatus according to claim 7, characterized in that: An extension block (101c-2a) is fixed to the outside of the support leg (101c-2). A first guide rod (101c-2b) and a second guide rod (101c-2c) are fixedly connected to the top of the extension block (101c-2a) in parallel. A guide groove (X4) is formed between the first guide rod (101c-2b) and the second guide rod (101c-2c).

9. The liquid filling and packaging apparatus according to claim 7 or 8, characterized in that: The conveyor chain assembly (103) includes several sets of docking jaws (103a) connected end to end. Each docking jaw (103a) includes symmetrically arranged guide rods (103e). A first jaw assembly (103b) is fixedly connected to the bottom of the guide rod (103e), and a second jaw assembly (103c) is slidably fixed to the top of the guide rod (103e). Both the first gripper group (103b) and the second gripper group (103c) include a first clamping plate (103b-1) and a second clamping plate (103b-2) that mesh with each other. The first clamping plate (103b-1) and the second clamping plate (103b-2) are respectively rotatably sleeved on the outside of the guide rod (103e).

10. The liquid filling and packaging apparatus according to claim 9, characterized in that: An extension rod (103b-2a) is fixedly connected to the outer wall of the second clamping plate (103b-2) on the side away from its clamping end. A first roller (L1) is rotatably connected to the extension rod (103b-2a), and a second roller (L2) is rotatably connected to both ends of the guide rod (103e). The two guide rods (103e) in the same group are fixed at both ends by the first connecting plate (103e-1). The two guide rods (103e) of the two adjacent docking jaws (103a) are fixed together by the second connecting plate (103e-2). The side wall of the first connecting plate (103e-1) is rotatably connected to the third roller (L3). An adjusting sleeve (103d) is also fixedly connected to the second gripper assembly (103c) at the top. An adjusting block (103d-1) is fixedly connected to the side wall of the adjusting sleeve (103d). A fourth roller (L4) is rotatably connected to the adjusting block (103d-1).

11. The liquid medicine filling and packaging apparatus according to claim 10, characterized in that: The bottom third roller (L3) makes rolling contact with the top of the first guide rod (101c-2b) and the second guide rod (101c-2c), the top third roller (L3) is rolled in the inner guide gap (X3), and the top and bottom second rollers (L2) are rolled in the guide gap (X2) and guide groove (X4) respectively. The fourth roller (L4) makes rolling contact with the top of the support frame (101d); The toothed blocks on the first turntable (102a) and the second turntable (102b) are respectively movably inserted between the top and bottom second rollers (L2).

12. The liquid medicine filling and packaging apparatus according to claim 10 or 11, characterized in that: A stabilizing plate (101e) is horizontally fixedly connected between the supporting legs (101c-2). A first adjusting plate (101e-1), a second adjusting plate (101e-2), and a third adjusting plate (101e-3) are fixedly connected to the top of the stabilizing plate (101e). The first adjusting plate (101e-1) is located at the junction of the first adjusting slide (101d-1a) and the filling area (Q1), the second adjusting plate (101e-2) is located at the junction of the second adjusting slide (101d-1b) and the pressing area (Q2), and the third adjusting plate (101e-3) is located at the junction of the third adjusting slide (101d-1c) and the welding area (Q3).

13. The liquid medicine filling and packaging apparatus according to claim 10 or 11, characterized in that: The filling unit (200) is fixed with a first filling body (201) and a second filling body (202) that are connected together. The liquid outlet ends of the first filling body (201) and the second filling body (202) are connected to the filling head (203). The bottle mouth of the bottle body (A) is fixed in the groove (B) of the first gripper group (103b), and the filling head (203) passes through the groove (B) of the second gripper group (103c) and the first gripper group (103b) in sequence and extends into the bottle body (A).

14. The liquid medicine filling and packaging apparatus according to claim 13, characterized in that: The cap feeding unit (400) includes a feeding tray (401), a feeding rail (402), and a rotating disk (403). The feeding rail (402) connects the feeding tray (401) and the rotating disk (403). The bottle cap (C) is placed in the cap-separating groove (403a) opened on the rotating disk (403). The clamping groove (B) of the second gripper group (103c) corresponds to the cap-separating groove (403a).

15. The liquid medicine filling and packaging apparatus according to any one of claims 10-11 and 14, characterized in that: A first lever plate (B1) is fixedly installed at the bottom of the spiral receiving plate (101d-1) on one side. The first lever plate (B1) is located at the corresponding position of the cover feeding unit (400), and the first lever plate (B1) is in contact with the first roller (L1) in the second gripper group (103c). On the other side, the bottom of the U-shaped receiving plate (101d-1) is fixedly provided with a second deflector plate (B2) and a third deflector plate (B3). The second deflector plate (B2) and the third deflector plate (B3) are located at the corresponding positions of the collecting unit (500), and the second deflector plate (B2) and the third deflector plate (B3) contact the first roller (L1) in the second gripper group (103c) and the first roller (L1) of the first gripper group (103b) respectively. The bottom of the spiral receiving plate (101d-1) is also provided with a fourth lever plate (B4), which is located at the corresponding position of the movable gripper assembly (302).

16. The liquid medicine filling and packaging apparatus according to claim 15, characterized in that: The collection unit (500) includes a turntable (501) and a collection gripper assembly (502) circumferentially fixed to its edge, the collection gripper assembly (502) gripping the bottle (A) within the first gripper assembly (103b).

17. The liquid medicine filling and packaging apparatus according to claim 16, characterized in that: A heating unit is also provided on one side of the welding area (Q3), and a heating plate is provided on it between the first jaw group (103b) and the second jaw group (103c).

18. The liquid medicine filling and packaging apparatus according to claim 16, characterized in that: The conveying unit (100) is also provided with a cleaning unit and a flipping unit on one side. Several sets of bottles (A) are fixed in the flipping unit, and the bottle mouths of several sets of bottles (A) correspond to the cleaning end of the cleaning unit. The flipping unit flips the bottle (A) and sends the bottle (A) into the moving gripper group (302) of the bottle feeding unit (300).

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