Medical syringe assembly equipment

Abstract

The present invention provides a medical syringe assembly device, which relates to the technical field of automated assembly of medical devices. It includes a device base, wherein a driving motor and a fixed rod are respectively fixedly installed at both ends of the device base, a follower shaft is fixedly connected to the output shaft of the driving motor, two connecting rods 1 and three connecting rods 2 are fixedly connected to the fixed rod, the three connecting rods 2 are fixedly connected to a track rod, the ends of the two connecting rods 1 are rotatably sleeved with the follower shaft, and after a robotic arm or manual operation places the injection needle assembly and the syringe part between the insert sleeve and the two clamping parts respectively, no additional manual operation is required, and the assembly automatically completes the clamping, assembly and disengagement actions during the movement process, the moving seat slides along the track rod through the track wheel, and the placed assembly moves accordingly, and when the two are aligned up and down, the subsequent process is automatically entered, and the entire assembly process is coherent and smooth, which greatly saves time and labor costs and significantly improves production efficiency compared to traditional manual assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated assembly of medical devices, and more specifically, relates to a medical syringe assembly device. Background Art

[0002] In the medical field, medical syringes are one of the most widely used medical devices. Their production efficiency and assembly quality directly affect the supply and safety of medical resources. Currently, the traditional medical syringe assembly process has many problems that need to be solved.

[0003] On the one hand, most manufacturers still use manual or semi-automated assembly methods. Manual assembly relies on a large labor force, which is not only inefficient and unable to meet the growing market demand, but also prone to fatigue from long-term repetitive operations, resulting in reduced assembly precision, poor product consistency, and increased defective product rates. Although semi-automated assembly equipment has improved efficiency to a certain extent, it still requires manual participation in some links, such as part loading and specification adjustment. The operation is cumbersome and the adjustment process is time-consuming, making it impossible to quickly adapt to the production switching of syringes of different specifications.

[0004] On the other hand, existing automated assembly equipment has limitations in structural design and functional implementation. Some equipment is difficult to adapt to syringes of multiple specifications at the same time, such as 1ml, 2ml, 5ml, 10ml and other different models. As a result, companies need to purchase multiple sets of equipment or frequently carry out complex modifications to the equipment when producing a variety of products, which is costly. In addition, some equipment is not precise and stable enough in the clamping, docking and separation of parts during the assembly process, which can easily lead to problems such as part damage and assembly misalignment, affecting product quality and production safety. At the same time, the equipment is difficult to maintain. When a failure occurs, due to the complex structure and low degree of modularization, repairs take a long time, further reducing production efficiency.

[0005] With the growing demand for syringes in the medical industry and increasingly stringent requirements for product quality, the development of medical syringe assembly equipment that can achieve efficient automated assembly, adaptive adjustment of multiple specifications, precise and stable operation, and easy maintenance has become an urgent need for the development of the industry. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a medical syringe assembly device to solve the above problems.

[0007] A medical syringe assembly device includes a device base, with a drive motor and a fixed rod fixedly mounted at both ends of the device base, a follower shaft fixedly connected to the output shaft of the drive motor, two connecting rods 1 and three connecting rods 2 fixedly connected to the fixed rod, track rods fixedly connected to the three connecting rods 2, and the ends of the two connecting rods 1 are rotatably sleeved with the follower shaft;

[0008] The fixing rod is also provided with a loosening mechanism and a clamping mechanism. The loosening mechanism includes two connecting rods three, two connecting rods four and four inserting rods. The rod surface of the fixing rod is provided with two groups of slots.

[0009] The left side of the equipment base is equipped with a collection assembly, which consists of a triangular guide, a collection slide and two support legs;

[0010] Three gear plates are fixedly sleeved on the follower shaft, and three identical gear plates are rotatably sleeved on the fixed rod. Three transmission chains are installed between the follower shaft and the fixed rod through the gear plates.

[0011] The track rod is equipped with equidistant clamping components, the two transmission chains below are equipped with equidistant placement components, and the fixed rod is also equipped with a lifting component;

[0012] The clamping assembly includes a moving seat and two clamping members, and the placing assembly includes a moving rod, an adjusting rod and two pairs of connecting pieces;

[0013] The lifting assembly consists of a collar and two lifting plates.

[0014] Preferably, a guide rod is fixed on the base of the equipment, a group of equidistant holes are opened on the fixed rod, a ring is sleeved on the fixed rod, a screw is threaded on the ring, and the screw on the ring is inserted into the hole on the fixed rod, a pair of connecting rods five are fixedly connected between the two lifting plates and the rings, the connecting rods five are movably sleeved with the guide rod, the upper end of the lifting plate is arc-shaped, the triangular guide is fixedly connected to the upper end of the collection slide, the two support legs are fixed to the bottom surface of the collection slide, and there is a gap between the triangular guide and the track rod.

[0015] Preferably, the opposing surfaces of the two clamping members are inclined surfaces, and the two clamping members are fixedly connected to a strip member. The movable seat is a hollow seat, and a triangular connecting frame and two side plates are fixedly connected to the movable seat. Two pairs of track wheels are rotatably mounted on the bottom surface of the movable seat. The triangular connecting frame is fixedly connected to the uppermost transmission chain by bolts. The track wheels are clamped on the upper edge of the track rod. The inner and outer sides of the upper end of the track rod are provided with circular protrusions, and the two strip members are located inside the movable seat.

[0016] Two short rods are fixedly connected in the movable seat, and the two strips are movably connected to the two short rods. An adjusting screw is rotatably connected between the two side plates, and the adjusting screw is threadedly connected to the two strips. One end of the adjusting screw is fixedly connected to gear 1, and the upper and lower surfaces of the side plates close to gear 1 are rotatably connected to gear 2, and gear 1 is meshed with the two gears 2. The syringe barrel part is clamped between the two clamping parts.

[0017] Preferably, the two pairs of connecting pieces are fixedly connected with connecting strips, a round rod is fixedly connected between the protrusions at both ends of the connecting strip, an intermediate plate is fixedly sleeved on the middle part of the round rod, two springs are sleeved on the round rod, the moving rod is movably sleeved on the round rod, an oblique frame is fixedly connected to the moving rod, a sliding plate is fixedly connected to the oblique frame, the sliding plate is movably sleeved on the round rod, the intermediate plate is located between the sliding plate and the moving rod, and two concave pulleys are installed on the bottom surface of the moving rod;

[0018] The moving rod is provided with strip grooves and holes.

[0019] Preferably, an insert and two strip-shaped edge kits are fixedly connected to the adjustment rod, the insert is inserted into the strip-shaped groove, and the two edge kits are clamped on both sides of the movable rod;

[0020] There is also a round hole on the adjusting rod, and a threaded ring is fixedly connected to the lower edge of the round hole. A sleeve is threadedly sleeved on the threaded ring. The upper edge of the inner wall of the sleeve is a threaded surface. The injection needle assembly of the syringe is movably inserted in the sleeve. There are equidistant small holes on the insertion strip, and a positioning screw is threadedly sleeved in the hole on the moving rod. The positioning screw is inserted in the small hole. The two pairs of connecting plates are respectively fixed to the two transmission chains located below by bolts.

[0021] Preferably, four rod sleeves fixedly connected together are fixedly connected between the two connecting rods three, an arc-shaped rack is fixedly connected between the two connecting rods four, and lifting rods are movably sleeved in the four rod sleeves. The upper end of each lifting rod is fixedly connected to a stopper, and the lower end of each lifting rod is fixedly connected to a short rack. The four short racks and the arc-shaped rack are spliced ​​into a complete arc-shaped tooth component.

[0022] Preferably, each lifting rod is movably connected to a rectangular operating rod, each group of slots includes four gradually rising slots, four operating rods are respectively inserted into a group of slots, each operating rod is sleeved with a spring, a blocking piece is fixed on the rod surface of each operating rod, and a grip ring is fixedly connected to the end of each operating rod.

[0023] Preferably, the clamping mechanism includes a rectangular rod and a connecting group rod composed of multiple rods. The rectangular rod and the fixed rod are fixedly connected by the connecting group rod. A tooth segment is fixedly connected to the bottom surface of the rectangular rod. The rectangular rod is also provided with equidistant holes. Four bar-shaped teeth are movably provided under the rectangular rod.

[0024] Preferably, each bar-shaped tooth piece is fixedly connected to two thin rods, and each bar-shaped tooth piece is also rotatably connected to a long screw rod, the long screw rod is threadedly sleeved in the hole of the rectangular rod, and the thin rod is sleeved in the hole of the rectangular rod, and a baffle is fixed on each thin rod. The four bar-shaped tooth pieces and the tooth segments form a complete straight rack.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Automated and Efficient Assembly: During operation, the drive motor starts, and the output shaft drives the follower shaft to rotate. The gear plate and drive chain drive the clamping assembly on the track rod and the placement assembly on the two lower drive chains to move synchronously. A robotic arm or a human inserts the needle assembly and syringe between the insert sleeve and the two clamps, respectively. No additional manual operation is required, as the assembly automatically completes clamping, assembly, and disengagement during movement. The moving base slides along the track rod via the track wheels, and the placement assembly moves with it. When the two are aligned vertically, the subsequent process automatically begins. The entire assembly process is seamless and smooth, significantly saving time and labor costs compared to traditional manual assembly, and significantly improving production efficiency.

[0027] 2. Multi-specification adaptive adjustment: For syringes of different specifications, the long screw can be rotated to misalign the strip teeth and the tooth segments. During the clamping process, the outer side of the upper gear 2 contacts the strip teeth and the tooth segments. When the total length of the strip teeth and the tooth segments changes, the number of revolutions of gear 2 changes accordingly, driving the meshing gear 1 and the adjustment screw to rotate, thereby changing the distance between the two strips, so that the minimum clamping distance of the two clamps is adapted to different syringes. For example, for 1ml and 10ml syringes, this adjustment can quickly and accurately achieve stable clamping. When switching specifications, only the long screw needs to be simply rotated, which is convenient to operate and greatly improves the applicability of the equipment.

[0028] 3. Precise docking and stable clamping: During assembly, by moving the adjustment rod and fixing its position with the positioning screw, it can be pre-adjusted according to the syringe specifications to ensure that the syringe assembly is aligned with the clamped syringe part. When the lifting plate contacts the concave pulley during movement, the concave pulley rises in an arc along the upper end of the lifting plate, pushing up the adjustment rod, driving the syringe assembly in the sleeve to rise, and completing precise insertion at the highest point. At the same time, the inclined structure of the clamping part cooperates with the transmission of the adjustment screw, gear one, and gear two in the moving seat. When clamping, as the adjustment screw rotates, the distance between the two strips shortens, and the inclined surface presses the syringe part tightly against the moving seat. A rubber layer is attached to the contact surface of the clamping part and the moving seat with the syringe part to increase friction and play a protective buffering role, so that there is a certain margin for clamping, avoiding rigid clamping, and evenly distributing the clamping force, effectively preventing the syringe from shaking or shifting during assembly, and ensuring that the assembly misalignment error is controlled within a very small range.

[0029] 4. Automated process closed-loop design: When the equipment is in operation, all components work together to form a complete closed loop. From the initial placement of the injection needle assembly and syringe part to the designated position, to the drive motor driving the assembly to move, the clamping, assembly, and loosening actions are completed in sequence. Finally, the assembled syringe contacts the triangular guide and gradually detaches from the two clamping parts under its obstruction, falling onto the collection slide and sliding to the next process. The entire process does not require excessive human intervention, reducing the errors and contamination risks that may be caused by manual operation. At the same time, the design of the transmission chain, track wheels, triangular guides and other structures ensures the consistency and stability of the process and improves production reliability.

[0030] 5. Quick adjustment and maintenance: In the release mechanism, by pulling the operating lever and then moving the lifting rod upward, the arc-shaped rack and the short rack can be dislocated and separated, and their total length can be changed. This design matches the release requirements of syringes of different specifications. When gear 2 contacts the arc-shaped rack and the short rack, it can ensure that the two strips just reach the maximum spacing after the contact is completed, avoiding movement interference. After the adjustment is completed, the operating lever can be fixed in the specified position using the slot and the spring on the operating lever to ensure stable operation. In addition, the various components of the equipment, such as clamps and sleeves, adopt a modular design. When a component fails or wears out, it can be quickly disassembled and replaced with a new component without the need for large-scale disassembly of the entire equipment. This greatly shortens maintenance time and improves the maintainability and utilization efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the collection slideway in the present invention;

[0033] Figure 3 It is a structural schematic diagram of the clamping assembly in the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the placement of components in the present invention;

[0035] Figure 5 It is a structural schematic diagram of the track rod in the present invention;

[0036] Figure 6 It is a structural schematic diagram of the connecting rod group in the present invention;

[0037] Figure 7 It is a structural schematic diagram of the fixing rod in the present invention;

[0038] Figure 8 It is a structural schematic diagram of the lifting plate in the present invention;

[0039] Figure 9 This invention Figure 4Schematic diagram of the enlarged structure at A in the middle;

[0040] Figure 10 This invention Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0041] In the figure, the corresponding relationship between the names of the components and the accompanying drawing numbers is as follows: 1. Equipment base; 2. Follower shaft; 3. Fixed rod; 4. Connecting rod; 5. Clamping piece; 6. Insert sleeve; 7. Collecting slide; 8. Driving motor; 9. Triangular guide; 10. Support leg; 11. Lifting plate; 12. Guide rod; 13. Track rod; 14. Connecting rod 1; 15. Connecting rod 2; 16. Tooth segment; 17. Rectangular rod; 18. Long screw; 19. Thin rod; 20. Strip tooth piece; 21. Short rod; 22. Strip piece; 23. Gear 2; 24. Side plate; 25. Adjusting screw; 26. Triangular connecting frame; 27. Track 1. Guide wheel; 28. Moving seat; 29. ​​Gear one; 30. Syringe part; 31. Threaded ring; 32. Adjusting rod; 33. Concave pulley; 34. Moving rod; 35. Connecting strip; 36. Round rod; 37. Connecting piece; 38. Slide; 39. Bevel rack; 40. Injection needle assembly; 41. Strip groove; 42. Positioning screw; 43. Insert; 44. Edge kit; 45. Ring; 46. Connecting rod five; 47. Slot; 48. Connecting rod four; 49. Arc rack; 50. Short rack; 51. Lifting rod; 52. Rod sleeve; 53. Connecting rod three; 54. Operating lever; 55. Gear plate. DETAILED DESCRIPTION

[0042] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0043] See also Figures 1-10The present invention provides a medical syringe assembly device, including a device base 1, wherein a driving motor 8 and a fixed rod 3 are fixedly installed at both ends of the device base 1, a follower shaft 2 is fixedly connected to the output shaft of the driving motor 8, two connecting rods 14 and three connecting rods 2 15 are fixedly connected to the fixed rod 3, the three connecting rods 2 15 are fixedly connected to the track rod 13, and the ends of the two connecting rods 14 are rotatably sleeved with the follower shaft 2; a loosening mechanism and a clamping mechanism are also provided on the fixed rod 3, the loosening mechanism includes two connecting rods 3 53, two connecting rods 48 and four operating rods 54, and two groups of slots 47 are opened on the rod surface of the fixed rod 3; a collecting component is provided on the left side of the device base 1, and the collecting component consists of a triangular guide 9, a collecting slide 7 and two supporting legs 10; three gear plates 55 are fixedly sleeved on the follower shaft 2, and three identical gear plates 55 are rotatably sleeved on the fixed rod 3. Three transmission chains are installed between the rods 3 through the gear plate 55; an equidistant clamping assembly is installed on the track rod 13, and an equidistant placement assembly is installed on the two transmission chains located below, and a lifting assembly is also provided on the fixed rod 3; the clamping assembly includes a movable seat 28 and two clamping members 5, the placement assembly includes a movable rod 34, an adjusting rod 32 and two pairs of connecting pieces 37; the lifting assembly includes a collar 45 and two lifting plates 11. When the device is in use, a robotic arm or manual operation is used to place the injection needle assembly 40 and the syringe part 30 between the insert sleeve 6 and the two clamping members 5 respectively, and the output shaft of the driving motor 8 rotates, and the clamping assembly and the placement assembly are moved along the track of the track rod 13 through the follower shaft 2, the gear plate 55, the transmission chain and the fixed rod 3. The clamping, assembly and release processes are automatically completed during the movement, and finally disengaged through the triangular guide 9, thereby improving the production efficiency and automation level of the syringe;

[0044] A guide rod 12 is also fixed to the equipment base 1, and a group of equidistant holes are opened on the fixed rod 3. The collar 45 is sleeved on the fixed rod 3, and a screw is threaded on the collar 45. The screw on the collar 45 is inserted into the hole on the fixed rod 3. A pair of connecting rods 5 46 are fixedly connected between the two lifting plates 11 and the collar 45. The connecting rods 5 46 are movably sleeved with the guide rod 12. The upper end of the lifting plate 11 is arc-shaped, the triangular guide 9 is fixedly connected to the upper end of the collection slide 7, the two supporting legs 10 are fixed to the bottom surface of the collection slide 7, and there is a gap between the triangular guide 9 and the track rod 13. The opposite surfaces of the two clamping members 5 are both inclined surfaces. The two clamping members 5 are fixedly connected with a strip member 22. The movable seat 28 is a hollow seat. The movable seat 28 is fixedly connected There are a triangular connecting frame 26 and two side plates 24. Two pairs of track wheels 27 are rotatably installed on the bottom surface of the mobile seat 28. The triangular connecting frame 26 is fixedly connected to the uppermost transmission chain by bolts. The track wheels 27 are clamped on the upper edge of the track rod 13. The inner and outer sides of the upper end of the track rod 13 have circular protrusions. The two strips 22 are located in the mobile seat 28; two short rods 21 are fixedly connected in the mobile seat 28, and the two strips 22 are movably connected to the two short rods 21. An adjusting screw 25 is rotatably connected between the two side plates 24. The adjusting screw 25 is threadedly connected to the two strips 22. One end of the adjusting screw 25 is fixedly connected to a gear 1 29. The upper and lower surfaces of the side plates 24 near the gear 1 29 are rotatably connected to gear 2 23. Gear 1 29 is meshed with both gears 23, and the syringe barrel part 30 is clamped between the two clamping parts 5. After the robot arm or manual work puts the injection needle assembly 40 and the syringe barrel part 30 between the insert sleeve 6 and the two clamping parts 5 respectively at the right front of the device, as the follower shaft 2 drives the gear plate 55 to rotate, the transmission chain moves accordingly, and the moving seat 28 slides along the track rod 13 through the track wheel 27. The placement assembly moves with the transmission chain, and the placement assembly and the clamping assembly are aligned up and down. The injection needle assembly 40 and the syringe barrel part 30 first contact the clamping mechanism, and the outer side of the gear 2 23 located above contacts the bar tooth 20 and the tooth segment 16. The gear 2 23 rotates clockwise, and the gear 1 29 meshing with it rotates clockwise. At this time The adjusting screw 25 also rotates clockwise to drive the distance between the two strip members 22 to be continuously shortened. In this process, the inclined surfaces of the two clamping members 5 are cooperated to continuously clamp the syringe part 30 and press against the movable seat 28. The surfaces of the clamping member 5 and the movable seat 28 contacting the syringe part 30 are both pasted with a layer of rubber layer to complete the automatic clamping of the syringe part 30. For syringes of different thicknesses, the long screw 18 can be rotated to misalign the strip teeth 20 and the tooth segment 16, and the total length of the strip teeth 20 and the tooth segment 16 can be changed to make the minimum clamping distance between the two clamping members 5 adapt to different syringes (this device is mainly suitable for syringes of 1, 2, 5, and 10 ml, and the four strip teeth 20 correspond to four sizes respectively), which improves adaptability and is easy to adjust;

[0045] The two pairs of connecting pieces 37 are fixedly connected to the connecting strips 35, and the round rods 36 are fixedly connected between the protrusions at both ends of the connecting strips 35. The middle part of the round rods 36 is fixedly sleeved with an intermediate plate, and the round rods 36 are sleeved with two springs. The moving rods 34 are movably sleeved on the round rods 36, and the moving rods 34 are fixedly connected to the oblique frame 39. The oblique frame 39 is fixedly connected to the slide 38, and the slide 38 is movably sleeved on the round rods 36. The intermediate plate is located between the slide 38 and the moving rods 34. Two concave pulleys 33 are installed on the bottom surface of the moving rods 34. The moving rods 34 are provided with strip grooves 41 and holes. The adjusting rods 32 are fixedly connected to the inserts 43. and two strip-shaped edge kits 44, the inserting strips 43 are inserted into the strip-shaped grooves 41, and the two edge kits 44 are clamped on both sides of the moving rod 34; the adjusting rod 32 is also provided with a round hole, the lower edge of the round hole is fixedly connected to the threaded ring 31, the threaded sleeve 6 is threadedly sleeved on the threaded ring 31, the upper edge of the inner wall of the sleeve 6 is a threaded surface, and the injection needle assembly 40 of the syringe is movably inserted into the sleeve 6, the inserting strips 43 are provided with equidistant small holes, the holes on the moving rod 34 are threadedly sleeved with positioning screws 42, and the positioning screws 42 are inserted into the small holes, and the two pairs of connecting pieces 37 are respectively fixed to the two transmission chains located below by bolts;

[0046] Four rod sleeves 52 that are fixedly connected together are fixedly connected between the two connecting rods three 53, and an arc-shaped rack 49 is fixedly connected between the two connecting rods four 48. A lifting rod 51 is movably sleeved in the four rod sleeves 52. The upper end of each lifting rod 51 is fixedly connected to a stopper, and the lower end of each lifting rod 51 is fixedly connected to a short rack 50. The four short racks 50 and the arc-shaped rack 49 are spliced ​​into a complete arc-shaped toothed member. A rectangular operating rod 54 is movably sleeved on each lifting rod 51. Each group of slots 47 includes four gradually rising slots. The four operating rods 54 are respectively inserted into a group of slots 47. Each operating rod 54 is sleeved with a spring. A stopper is fixed to the rod surface of each operating rod 54, and a grip ring is fixedly connected to the end of each operating rod 54.

[0047] The clamping mechanism includes a rectangular rod 17 and a connecting rod 4 composed of multiple rods. The rectangular rod 17 and the fixed rod 3 are fixedly connected by the connecting rod 4. A tooth segment 16 is fixedly connected to the bottom surface of the rectangular rod 17. The rectangular rod 17 is also provided with equidistant holes. Four bar-shaped teeth 20 are movably provided below the rectangular rod 17. Each bar-shaped tooth 20 is fixedly connected to two thin rods 19. Each bar-shaped tooth 20 is also rotatably connected to a long screw 18. The long screw 18 is threadedly sleeved in the hole of the rectangular rod 17. The thin rod 1 9 is sleeved in the hole of the rectangular rod 17, and a baffle is fixed on each thin rod 19. The four bar-shaped teeth 20 and the tooth segment 16 form a complete straight rack. When the assembled syringe contacts the triangular guide 9, as the triangular guide 9 blocks the syringe, the assembled syringe gradually separates from the two clamping parts 5 and eventually falls on the collection slide 7 and slides to the next process. The entire syringe assembly process is completed and fully automated. The clamping part 5 and the sleeve 6 after separating from the syringe can directly proceed to the next assembly cycle;

[0048] In this device, one side of gear 2 23 is a spur gear for meshing with the rack; the other side is a spur bevel gear for meshing with gear 1 29, which is a bevel gear.

[0049] Working principle:

[0050] When the device is in use, a mechanical arm or manual operation is used to place the injection needle assembly 40 and the syringe part 30 between the insertion sleeve 6 and the two clamping parts 5, respectively. The output shaft of the driving motor 8 rotates, and the clamping assembly and the placement assembly are moved along the track of the track rod 13 through the follower shaft 2, the gear plate 55, the transmission chain and the fixed rod 3. During the movement, the clamping, assembly and release processes are automatically completed. Finally, the device is separated through the triangular guide 9, thereby improving the production efficiency and automation level of the syringe. The specific process is as follows:

[0051] After the robotic arm or manual labor places the injection needle assembly 40 and the syringe part 30 between the insert sleeve 6 and the two clamping parts 5 respectively at the right front of the device, as the follower shaft 2 drives the gear plate 55 to rotate, the transmission chain moves accordingly, and the moving seat 28 slides along the track rod 13 through the track wheel 27. The placement assembly moves with the transmission chain, and the placement assembly and the clamping assembly are aligned up and down. The injection needle assembly 40 and the syringe part 30 first contact the clamping mechanism, and the outer side of the gear 2 23 located above contacts the strip tooth part 20 and the tooth segment 16. The gear 2 23 rotates clockwise, and the gear 1 29 meshing with it rotates clockwise. At this time, the adjusting screw 25 also rotates clockwise to drive the two strips. The distance between the two clamping members 5 and the movable seat 28 is continuously shortened. In this process, the inclined surfaces of the two clamping members 5 are used to continuously clamp the syringe part 30 and press against the movable seat 28. The surfaces of the clamping member 5 and the movable seat 28 that contact the syringe part 30 are both pasted with a layer of rubber layer to complete the automatic clamping of the syringe part 30. For syringes of different thicknesses, the long screw 18 can be rotated to displace the strip tooth member 20 and the tooth segment 16, thereby changing the total length of the strip tooth member 20 and the tooth segment 16, so that the minimum clamping distance between the two clamping members 5 can be adapted to different syringes (this device is mainly suitable for syringes of 1, 2, 5, and 10 ml, and the four strip tooth members 20 correspond to four sizes respectively), which improves adaptability and is easy to adjust.

[0052] After the syringe part 30 is clamped, the injection needle assembly 40 is aligned at the same time. By moving the adjustment rod 32 and fixing the position of the adjustment rod 32 with the positioning screw 42, pre-adjustment and positioning are performed according to different syringe specifications to ensure that the injection needle assembly 40 is aligned with the clamped syringe part 30. The adjustment is convenient and fast. The injection needle assembly 40 and the clamped syringe part 30 continue to move. The lifting plate 11 contacts the concave pulley 33. The concave pulley 33 rises with the arc of the upper end of the lifting plate 11, pressing the adjustment rod 32 to rise, thereby driving the injection needle assembly 40 in the sleeve 6 to rise, and the injection needle assembly is completed at the highest point. 40 and the syringe part 30 are plugged in and out. When the concave pulley 33 leaves the lifting plate 11, the adjusting rod 32 is automatically reset under the elastic force of the spring on the round rod 36, and the injection needle assembly 40 remains on the syringe part 30 to complete the assembly of the syringe. The insertion sleeve 6 on the adjusting rod 32 can be prepared to insert a new injection needle assembly 40. By changing the connection between the screw on the collar 45 and the holes at different heights on the fixed rod 3, the height of the lifting plate 11 can be changed according to syringes of different specifications, ensuring that the injection needle assembly 40 can be connected to the syringe part 30 when it rises to the highest point, further improving applicability.

[0053] After the syringe part 30 is connected and assembled with the injection needle assembly 40, the equipment is put into operation. The second gear 23 at the lower end contacts the arc-shaped rack 49 and the short rack 50. The second gear 23 starts to rotate counterclockwise, driving the first gear 29 to rotate counterclockwise, thereby separating and resetting the two strips 22, releasing the clamping fixation of the syringe part 30. According to the different specifications of the syringe, the lifting rod 51 is moved upward after the operating rod 54 is pulled to make the arc-shaped rack 49 and the short rack 50 staggered and separated, changing the total length of the arc-shaped rack 49 and the short rack 50, so that the two strips 22 reach the maximum distance after the second gear 23 completes the contact with the arc-shaped rack 49 and the short rack 50, avoiding movement interference, and the operating rod 54 is fixed in the specified position by the slot 47 and the spring on the operating rod 54, thereby improving stability. At this time, the assembled syringe can be prepared for disengagement;

[0054] When the assembled syringe contacts the triangular guide 9, as the triangular guide 9 obstructs the syringe, the assembled syringe gradually separates from the two clamping parts 5, and finally falls on the collection slide 7 and slides to the next process. The entire syringe assembly process is completed and fully automated. After separating from the syringe, the clamping parts 5 and the sleeve 6 can directly proceed to the next assembly cycle.

[0055] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A medical syringe assembly device, characterized in that: The device comprises a base (1), a driving motor (8) and a fixing rod (3) are fixedly mounted on both ends of the base (1), a follower shaft (2) is fixedly connected to the output shaft of the driving motor (8), two connecting rods (14) and three connecting rods (15) are fixedly connected to the fixing rod (3), the three connecting rods (15) are fixedly connected to the track rod (13), and the ends of the two connecting rods (14) are rotatably sleeved with the follower shaft (2); The fixing rod (3) is also provided with a loosening mechanism and a clamping mechanism. The loosening mechanism includes two connecting rods three (53), two connecting rods four (48) and four operating rods (54). The rod surface of the fixing rod (3) is provided with two groups of slots (47). A collecting assembly is provided on the left side of the equipment base (1), and the collecting assembly is composed of a triangular guide (9), a collecting slide (7) and two supporting legs (10); Three gear plates (55) are fixedly sleeved on the follower shaft (2), three identical gear plates (55) are rotatably sleeved on the fixed rod (3), and three transmission chains are installed between the follower shaft (2) and the fixed rod (3) through the gear plates (55); The track rod (13) is provided with equidistant clamping assemblies, the two transmission chains located below are provided with equidistant placement assemblies, and the fixed rod (3) is also provided with a lifting assembly; The clamping assembly includes a movable seat (28) and two clamping members (5), and the placing assembly includes a movable rod (34), an adjusting rod (32) and two pairs of connecting plates (37); The lifting assembly comprises a collar (45) and two lifting plates (11).

2. A medical syringe assembly device as claimed in claim 1, characterized in that: A guide rod (12) is also fixed on the equipment base (1), and a group of equidistant holes are opened on the fixed rod (3). A collar (45) is sleeved on the fixed rod (3), and a screw is threadedly sleeved on the collar (45). The screw on the collar (45) is inserted into the hole on the fixed rod (3). A pair of connecting rods (46) are fixedly connected between the two lifting plates (11) and the collar (45). The connecting rods (46) are movably sleeved with the guide rod (12), and the upper end of the lifting plate (11) is arc-shaped.

3. A medical syringe assembly device as claimed in claim 2, characterized in that: The triangular guide (9) is fixedly connected to the upper end of the collecting slide (7), the two supporting legs (10) are fixed to the bottom surface of the collecting slide (7), and a gap exists between the triangular guide (9) and the track rod (13).

4. A medical syringe assembly device as claimed in claim 3, characterized in that: The opposing surfaces of the two clamping members (5) are inclined surfaces, and the two clamping members (5) are fixedly connected with a strip member (22). The movable seat (28) is a hollow seat. The movable seat (28) is fixedly connected with a triangular connecting frame (26) and two side plates (24). The bottom surface of the movable seat (28) is rotatably mounted with two pairs of track wheels (27). The triangular connecting frame (26) is fixedly connected to the top transmission chain by bolts. The track wheel (27) is clamped on the upper edge of the track rod (13). The inner and outer sides of the upper end of the track rod (13) are both circular protrusions. The two strip members (22) are located in the movable seat (28); Two short rods (21) are fixedly connected to the movable seat (28), and the two strip members (22) are movably sleeved with the two short rods (21). An adjusting screw (25) is rotatably connected between the two side plates (24). The adjusting screw (25) and the two strip members (22) are threadedly sleeved. One end of the adjusting screw (25) is fixedly connected to a gear 1 (29). The upper and lower surfaces of the side plates (24) near the gear 1 (29) are rotatably connected to a gear 2 (23). The gear 1 (29) is meshed with the two gear 2s (23). The syringe barrel portion (30) of the syringe is clamped between the two clamping members (5).

5. A medical syringe assembly device as claimed in claim 4, characterized in that: The two pairs of connecting pieces (37) are fixedly connected with a connecting strip (35), and a round rod (36) is fixedly connected between the protrusions at both ends of the connecting strip (35). The middle part of the round rod (36) is fixedly sleeved with an intermediate plate, and two springs are sleeved on the round rod (36). The moving rod (34) is movably sleeved on the round rod (36), and the moving rod (34) is fixedly connected with an inclined frame (39). The inclined frame (39) is fixedly connected with a slide (38), and the slide (38) is movably sleeved on the round rod (36). The intermediate plate is located between the slide (38) and the moving rod (34), and two concave pulleys (33) are installed on the bottom surface of the moving rod (34); The movable rod (34) is provided with a strip groove (41) and a hole.

6. A medical syringe assembly device as claimed in claim 5, characterized in that: The adjusting rod (32) is fixedly connected with an inserting strip (43) and two strip-shaped edge kits (44), the inserting strip (43) is inserted into the strip groove (41), and the two edge kits (44) are clamped on both sides of the moving rod (34); The adjusting rod (32) is also provided with a circular hole, the lower hole of the circular hole is fixedly connected with a threaded ring (31), the threaded sleeve (6) is threadedly sleeved on the threaded ring (31), the upper edge of the inner wall of the sleeve (6) is a threaded surface, and the syringe needle assembly (40) of the syringe is movably inserted in the sleeve (6), and the insertion strip (43) is provided with equidistant small holes, and the hole on the moving rod (34) is threadedly sleeved with a positioning screw (42), and the positioning screw (42) is inserted in the small hole. The two pairs of connecting pieces (37) are respectively fixed to the two transmission chains located below by bolts.

7. A medical syringe assembly device as claimed in claim 6, characterized in that: Four rod sleeves (52) are fixedly connected between the two connecting rods (53), an arc-shaped rack (49) is fixedly connected between the two connecting rods (48), and a lifting rod (51) is movably sleeved in each of the four rod sleeves (52). The upper end of each lifting rod (51) is fixedly connected to a stopper, and the lower end of each lifting rod (51) is fixedly connected to a short rack (50). The four short racks (50) and the arc-shaped rack (49) are spliced ​​into a complete arc-shaped toothed part.

8. A medical syringe assembly device as claimed in claim 7, characterized in that: Each lifting rod (51) is movably sleeved with a rectangular operating rod (54), each group of slots (47) includes four gradually rising slots, and the four operating rods (54) are respectively inserted into a group of slots (47), each operating rod (54) is sleeved with a spring, a blocking piece is fixed to the rod surface of each operating rod (54), and a grip ring is fixedly connected to the end of each operating rod (54).

9. A medical syringe assembly device as claimed in claim 8, characterized in that: The clamping mechanism comprises a rectangular rod (17) and a connecting rod group (4) composed of multiple rods. The rectangular rod (17) and the fixed rod (3) are fixedly connected via the connecting rod group (4). A tooth segment (16) is fixedly connected to the bottom surface of the rectangular rod (17). The rectangular rod (17) is also provided with equidistant holes. Four bar-shaped tooth members (20) are movably provided below the rectangular rod (17).

10. The medical syringe assembly device according to claim 9, characterized in that: Each bar-shaped tooth piece (20) is fixedly connected to two thin rods (19), and each bar-shaped tooth piece (20) is also rotatably connected to a long screw rod (18). The long screw rod (18) is threadedly sleeved in the hole of the rectangular rod (17), and the thin rod (19) is sleeved in the hole of the rectangular rod (17). A baffle is fixed on each thin rod (19). The four bar-shaped tooth pieces (20) and the tooth segment (16) form a complete straight rack.

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