Injector integrated assembling and detecting equipment

Abstract

The invention relates to the technical field of syringe processing, and discloses a syringe integrated assembly detection device which comprises a workbench, and the top of the workbench is sequentially provided with a core rod feeding assembly, a plunger feeding butt joint assembly, a barrel feeding butt joint assembly, a sealing performance detection assembly and a material distribution assembly. The plunger feeding butt-joint assembly is used for butt-joint installation of a plunger and a core rod, and the barrel feeding butt-joint assembly is used for butt-joint installation of a barrel and the core rod provided with the plunger. Through close cooperation of multiple mechanisms of the core rod feeding assembly, the plunger feeding butt-joint assembly, the barrel feeding butt-joint assembly, the sealing performance detection assembly and the material distribution assembly, automatic feeding of core rods, plungers and barrels, butt-joint installation of the core rods and the plungers and butt-joint installation of the core rods provided with the plungers and the barrels are achieved; and through effective cooperation of the sealing mechanism and the sealing performance detection assembly, rapid detection of the core rod, the plunger and the barrel assembly part is realized.

Description

Technical Field

[0001] This invention relates to the field of syringe manufacturing technology, specifically to an integrated syringe assembly and testing device. Background Technology

[0002] In the medical industry, syringes are extremely common and critical medical devices, widely used in various medical procedures such as vaccination, drug injection, and blood collection. Their demand is increasing day by day. With the improvement of medical standards and the development of global public health, more stringent requirements have been placed on the production efficiency and quality standards of syringes.

[0003] However, the syringe assembly process still has the following problems in actual production:

[0004] 1. Traditional syringe production relies heavily on manual or semi-automatic equipment for assembly. In the assembly of the core rod, plunger, and barrel, manual operation is inefficient and prone to errors due to factors such as human fatigue and skill differences, resulting in poor product consistency and difficulty in guaranteeing the yield. Although semi-automatic equipment improves efficiency to some extent, it still requires a lot of manual assistance, thus limiting the overall production efficiency.

[0005] 2. In terms of testing, the existing methods also have many problems. Some companies use manual sampling inspection, where inspectors check the finished products based on their experience. This method is highly subjective and makes it difficult to detect minor defects such as poor sealing.

[0006] 3. After the plunger and core rod are assembled, since the core rod is inserted into the plunger at the end and engages with the plunger, and the plunger is made of soft material, there is a risk that the engagement between the plunger and the end of the core rod may not be tight, which will affect the subsequent assembly with the cylinder.

[0007] 4. The outer ring of the plunger generally has at least two layers of sealing edge. The wall thickness of the sealing edge is relatively thin. After being inserted and assembled with the inner barrel, the sealing edge of the inserted plunger outer ring is prone to irregular deformation, which affects the sealing performance of the syringe. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides an integrated syringe assembly and testing device. It primarily solves the problems of low efficiency and poor product consistency due to reliance on manual or automated assembly of the core rod, plunger, and barrel, as well as the high rate of missed inspections caused by reliance on experience for manual sampling, which makes it difficult to identify microscopic defects such as poor sealing. Furthermore, the device addresses issues such as soft plunger material, poor insertion fit of the core rod end leading to loose connections affecting subsequent barrel assembly, and the tendency of the double-layer thin-walled sealing edge to undergo irregular deformation under pressure within the barrel, resulting in poor sealing.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] An integrated syringe assembly and testing device includes a workbench. The top of the workbench is sequentially equipped with a core rod feeding assembly, a plunger feeding and docking assembly, a barrel feeding and docking assembly, a sealing performance testing assembly, and a dispensing assembly. The plunger feeding and docking assembly is used for docking and installing the plunger and core rod. The barrel feeding and docking assembly is used for docking and installing the barrel and the core rod with the plunger installed. The top of the workbench is equipped with a switching platform via a rotary drive assembly for switching syringe components between different work positions. The top of the switching platform is equipped with multiple supports for positioning and supporting syringe components at different work positions. The workbench includes a plunger adjustment assembly at the top of the workbench, located between the plunger feeding docking assembly and the barrel feeding docking assembly, for adjusting the plunger installation. The workbench also includes a pull-out adjustment assembly at the top of the workbench, located between the barrel feeding docking assembly and the sealing detection assembly, for adjusting the fit between the plunger and the barrel after assembly. Furthermore, the workbench also includes a switching assembly at the top of the workbench, located on one side of the core rod feeding assembly, plunger feeding docking assembly, plunger adjustment assembly, and barrel feeding docking assembly, for switching the placement and removal of syringe components from the placement assembly.

[0011] Furthermore, the conversion component includes a conversion bracket fixedly connected to the top of the workbench, a conversion motor fixedly connected to the top of the conversion bracket, a position adjustment frame fixedly connected to one end of the output shaft of the conversion motor, a conversion finger cylinder fixedly connected to one side of the position adjustment frame, and a matching conversion clamping arm fixedly connected to one side of each of the two grippers of the conversion finger cylinder.

[0012] The placement component includes an assembly frame fixedly connected to the top of the switching table. The top of the assembly frame is provided with a core rod slot for positioning and supporting the core rod and a cylinder slot for positioning and supporting the cylinder body.

[0013] Based on the aforementioned scheme, the core rod feeding assembly includes a core rod feeding bracket fixedly connected to the top of the workbench. Two core rod feeding sprockets are rotatably connected to one side of the core rod feeding bracket via bearing rods. A core rod feeding chain is wound between the two core rod feeding sprockets. Multiple equally spaced core rod V-shaped seats are fixedly connected to the outer side of the core rod feeding chain. A core rod feeding plate is fixedly connected to one side of the core rod V-shaped seats. A core rod placement frame is fixedly connected to one side of the core rod feeding bracket. Two core rod positioning plates are inclinedly provided on the top of the core rod placement frame. A chamber for positioning and feeding the two ends of the core rod is formed between the two core rod positioning plates. A core rod clearance groove is provided at the bottom of the core rod placement frame to avoid the core rod feeding plate. A core rod feeding motor for driving any one of the core rod feeding sprockets to rotate is provided on the other side of the core rod feeding bracket.

[0014] As a further embodiment of the present invention, the plunger feeding and docking assembly includes a plunger feeding bracket and a vibratory feeder fixedly connected to the top of the worktable. The vibratory feeder is used for the orderly positioning and feeding of the plunger. A plunger limiting frame that cooperates with the discharge end of the vibratory feeder is fixedly connected to one side of the plunger feeding bracket. A plunger contouring groove for guiding the plunger is opened at the end of the plunger limiting frame. A plunger side positioning groove for positioning the plunger position and the core rod flipping position is opened on one side of the plunger limiting frame. A plunger support seat for ejecting the plunger that fits with the plunger side positioning groove is provided inside the plunger contouring groove. A plunger docking lifting cylinder is fixedly connected to one side of the plunger feeding bracket. A plunger docking top frame is fixedly connected to one end of the piston rod of the plunger docking lifting cylinder. A plunger docking top seat is fixedly connected to the top of the plunger docking top frame, and the top end of the plunger docking top seat passes through the plunger limiting frame and is fixed to the bottom end of the plunger support seat.

[0015] Furthermore, the plunger adjustment assembly includes a plunger adjustment bracket fixedly connected to the top of the worktable, a plunger adjustment lifting cylinder fixedly connected to one side of the plunger adjustment bracket, a plunger adjustment top material rack fixedly connected to one end of the piston rod of the plunger adjustment lifting cylinder, a plunger adjustment rotary cylinder fixedly connected to the upper surface of the plunger adjustment top material rack, a plunger adjustment pressure seat fixedly connected to one end of the rotating shaft of the plunger adjustment rotary cylinder, and a plunger adjustment pressure cavity that cooperates with the plunger is opened inside the plunger adjustment pressure seat.

[0016] Based on the aforementioned solution, the cylinder loading docking assembly includes a cylinder loading bracket fixedly connected to the top of the workbench. Two cylinder loading sprockets are rotatably connected to one side of the cylinder loading bracket via bearing rods. A cylinder loading chain is wound between the two cylinder loading sprockets. Multiple equally spaced cylinder V-shaped seats are fixedly connected to the outer side of the cylinder loading chain. A cylinder feeding plate is fixedly connected to one side of each cylinder V-shaped seat. A cylinder placement frame is fixedly connected to one side of the cylinder loading bracket. Two cylinder positioning plates are inclinedly provided on the top of the cylinder placement frame, one of which contains a cylinder... One side of the positioning plate is provided with a front contour groove to support the front end of the cylinder, and the other cylinder positioning plate is provided with a deep groove to avoid the flange position of the tail end of the cylinder. The two cylinder positioning plates form a chamber for positioning and feeding the cylinder. The bottom of the cylinder placement frame is provided with a cylinder avoidance groove to avoid the cylinder feeding plate. The other side of the cylinder feeding bracket is provided with a cylinder feeding motor to drive any one of the cylinder feeding sprockets to rotate. One side of the cylinder feeding bracket is provided with a blocking positioning mechanism to position the cylinder at the docking position with the core rod.

[0017] The blocking and positioning mechanism includes a cylinder docking lifting cylinder fixedly connected to one side of the cylinder loading support. One end of the piston rod of the cylinder docking lifting cylinder is fixedly connected to a cylinder docking transverse cylinder. One end of the piston rod of the cylinder docking transverse cylinder is fixedly connected to a cylinder docking frame. One side of the cylinder docking frame is fixedly connected to a docking post-limiting plate for initial positioning of the cylinder. The end of the docking post-limiting plate is partially intersected with the cylinder material-pushing plate. One end of the cylinder docking frame is fixedly connected to a docking front-limiting plate for secondary positioning of the cylinder. One side of the docking front-limiting plate is provided with an adaptive guide groove. An effective distance for cylinder pushing is left between the docking front-limiting plate and the cylinder material-pushing plate.

[0018] As a further embodiment of the present invention, the pull-out adjustment assembly includes a pull-out adjustment bracket fixedly connected to the top of the workbench. A pull-out adjustment ball screw linear module is fixedly connected to the top of the pull-out adjustment bracket. A pull-out adjustment movable frame is fixedly connected to the bottom of the slide of the pull-out adjustment ball screw linear module. A pull-out adjustment finger cylinder is fixedly connected to one side of the pull-out adjustment finger cylinder. A matching pull-out adjustment clamping arm is fixedly connected to one side of each of the two grippers of the pull-out adjustment finger cylinder. A side bracket is fixedly connected to one side of the pull-out adjustment bracket. A pressing cylinder is fixedly connected to one side of the side bracket. A pressing plate is fixedly connected to one end of the piston rod of the pressing cylinder. A rubber pressure block for pressing and fixing the cylinder is fixedly connected to the bottom of the pressing plate.

[0019] Furthermore, the sealing performance testing assembly includes a sealing performance testing bracket fixedly connected to the top of the workbench. A sealing performance testing ball screw linear module is fixedly connected to the top of the sealing performance testing bracket. A sealing performance testing movable frame is fixedly connected to the bottom of the slide of the sealing performance testing ball screw linear module. A column-type pressure sensor is fixedly connected to one side of the sealing performance testing movable frame. A second side bracket is fixedly connected to one side of the sealing performance testing bracket. A second pressing cylinder is fixedly connected to one side of the second side bracket. A second pressing plate is fixedly connected to one end of the piston rod of the second pressing cylinder. A second rubber pressure block for pressing and fixing the cylinder is fixedly connected to the bottom of the second pressing plate. Multiple sealing mechanisms corresponding to the placement components are fixedly connected to the top of the switching table.

[0020] The sealing mechanism includes a sealing cylinder fixedly connected to the top of the switching platform. One end of the piston rod of the sealing cylinder is fixedly connected to a sealing plug sleeve, and the inside of the sealing plug sleeve fits the outer shape of the front end of the cylinder.

[0021] Based on the aforementioned scheme, the material distribution assembly includes a material distribution bracket fixedly connected to the top of the workbench. A material distribution ball screw linear module is fixedly connected to the top of the material distribution bracket. A material distribution rotary motor is fixedly connected to the top of the slide of the material distribution ball screw linear module. A material distribution rotary frame is fixedly connected to one end of the output shaft of the material distribution rotary motor. A material distribution finger cylinder is fixedly connected to one side of the material distribution rotary frame. A matching material distribution clamping arm is fixedly connected to one side of each of the two grippers of the material distribution finger cylinder. A double-type material distribution hopper that matches the material distribution assembly is fixedly connected to the top of the workbench. A double-type material distribution box is provided at the top of the workbench and below the double-type material distribution hopper.

[0022] As a further embodiment of the present invention, the rotary drive assembly includes a reducer fixedly connected to the top of the worktable, one end of the reducer output shaft being fixedly connected to the switching platform, a drive motor being fixedly connected inside the worktable, and a synchronous pulley being fixedly connected to one end of the drive motor output shaft and one end of the reducer power shaft, and the two synchronous pulleys being connected by a synchronous belt drive.

[0023] Compared with the prior art, the present invention provides an integrated syringe assembly and testing device, which has the following beneficial effects:

[0024] 1. This invention achieves automated feeding of the core rod, plunger, and cylinder, docking and installation of the core rod and plunger, and docking and installation of the core rod with the plunger installed and the cylinder through the close cooperation of multiple mechanisms, including the core rod feeding assembly, the plunger feeding docking assembly, the cylinder feeding docking assembly, the sealing detection assembly, and the material distribution assembly.

[0025] 2. The present invention drives the switching table to rotate through a rotary drive assembly, and the placement component set on the switching table can effectively support and position the core rod, plunger and cylinder in different working states.

[0026] 3. The conversion component of the present invention can flip and remove the core rod inside the placement component, and achieve precise docking and cooperation with different workstations by flipping it at different angles.

[0027] 4. By setting up a plunger adjustment component, the plunger located at the end of the core rod can be adjusted by pressing and rotating in both directions, effectively solving the problem of poor fit between the plunger and the end of the core rod.

[0028] 5. This invention uses a pull-out adjustment component to reciprocate the core rod, causing the plunger inside the cylinder to move back and forth along the cylinder. The friction between the sealing edge of the plunger's outer ring and the inner wall of the cylinder effectively cleans the sealing edge of the plunger's outer ring.

[0029] 6. By setting up a blocking and positioning mechanism, the present invention enables the cylinder to be double-positioned by the front limiting plate and the rear limiting plate. Then, the double-positioned cylinder is pushed by the cylinder docking frame, and the cylinder is precisely docked and assembled with the plunger and the core rod.

[0030] 7. By setting up a sealing mechanism, the present invention enables the sealing mechanism to work effectively with the sealing performance detection component, thereby achieving rapid detection of the core rod, plunger and cylinder assembly.

[0031] 8. The present invention can classify and sort products that pass or fail the sealing test through the material sorting component, so as to facilitate subsequent rework. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the front three-dimensional structure of an integrated syringe assembly and testing device proposed in this invention;

[0033] Figure 2 This is a schematic diagram of the rotary drive assembly structure of an integrated syringe assembly and testing device proposed in this invention;

[0034] Figure 3 This is a schematic diagram of the conversion component structure of an integrated syringe assembly and testing device proposed in this invention;

[0035] Figure 4 This is a schematic diagram of the placement component structure of an integrated syringe assembly and testing device proposed in this invention;

[0036] Figure 5 This is a schematic diagram of the core rod feeding assembly structure of an integrated syringe assembly and testing device proposed in this invention;

[0037] Figure 6 This invention proposes an integrated syringe assembly and testing device. Figure 5 A partially enlarged structural diagram;

[0038] Figure 7 This is a schematic diagram of the plunger feeding docking assembly structure of an integrated syringe assembly and testing device proposed in this invention;

[0039] Figure 8 This invention proposes an integrated syringe assembly and testing device. Figure 7 A partially enlarged structural diagram;

[0040] Figure 9 This is a schematic diagram of the plunger adjustment assembly structure of an integrated syringe assembly and testing device proposed in this invention;

[0041] Figure 10This is a schematic diagram of the cylinder feeding docking assembly structure of an integrated syringe assembly and testing device proposed in this invention;

[0042] Figure 11 This invention proposes an integrated syringe assembly and testing device. Figure 10 A partially enlarged structural diagram;

[0043] Figure 12 This is a schematic diagram of the blocking and positioning mechanism of an integrated syringe assembly and testing device proposed in this invention;

[0044] Figure 13 This is a schematic diagram of the pull-out debugging component structure of an integrated syringe assembly and testing device proposed in this invention;

[0045] Figure 14 This is a schematic diagram of the sealing test component structure of an integrated syringe assembly and testing device proposed in this invention;

[0046] Figure 15 This is a schematic diagram of the material distribution component structure of an integrated syringe assembly and testing device proposed in this invention.

[0047] In the diagram: 1. Workbench; 2. Switching station; 3. Core rod feeding assembly; 4. Plunger feeding docking assembly; 5. Plunger adjustment assembly; 6. Cylinder feeding docking assembly; 7. Pull-out adjustment assembly; 8. Sealing test assembly; 9. Material distribution assembly; 10. Placement component; 11. Conversion component; 12. Rotary drive assembly; 301. Core rod feeding sprocket; 302. Core rod V-shaped seat; 303. Core rod feeding chain; 304. Core rod placement rack; 305. Core rod positioning plate; 306. Core rod feeding bracket; 307. Core rod material guide plate; 308. Core rod feeding motor; 309. Core rod clearance groove; 401. Vibratory feeder; 402. Plunger feeding bracket; 403. Plunger docking lifting cylinder; 404. Plunger Limiting bracket; 405, plunger side positioning groove; 406, plunger support; 407, plunger contouring groove; 408, plunger docking top material seat; 409, plunger docking top material frame; 501, plunger adjusting bracket; 502, plunger adjusting lifting cylinder; 503, plunger adjusting top material frame; 504, plunger adjusting rotary cylinder; 505, plunger adjusting pressure seat; 506, plunger adjusting pressure chamber; 601, cylinder feeding sprocket; 602, cylinder V-slot; 603, cylinder feeding chain; 604, cylinder placement frame; 605, cylinder positioning plate; 606, cylinder feeding bracket; 607, cylinder material feeding plate; 608, cylinder feeding motor; 609, cylinder docking transverse movement cylinder; 610, cylinder docking lifting cylinder; 6 11. Cylinder docking frame; 612. Rear docking limit plate; 613. Front docking limit plate; 614. Adaptive guide groove; 615. Cylinder clearance groove; 616. Front contour groove; 617. Clearance deep groove; 701. Pull-out adjustment ball screw linear module; 702. Pull-out adjustment bracket; 703. Pull-out adjustment moving frame; 704. Pull-out adjustment finger cylinder; 705. Pull-out adjustment clamping arm; 706. Side bracket one; 707. Pressing cylinder one; 708. Pressing plate one; 709. Rubber pressure block one; 801. Sealing test ball screw linear module; 802. Sealing test bracket; 803. Sealing test moving frame; 804. Column pressure sensor; 805. Side bracket two; 806. 807. Pressing cylinder 2; 808. Pressing plate 2; 809. Rubber pressing block 2; 810. Sealing plug sleeve; 901. Sealing cylinder; 902. Distributing ball screw linear module; 903. Distributing rotary motor; 904. Distributing rotary frame; 905. Distributing finger cylinder; 906. Distributing clamping arm; 907. Double-type distributing hopper; 908. Double-type distributing box; 1001. Core rod slot; 1002. Cylinder slot; 1003. Assembly frame; 1101. Conversion bracket; 1102. Conversion motor; 1103. Conversion clamping arm; 1104. Conversion finger cylinder; 1105. Position adjustment frame; 1201. Reducer; 1202. Synchronous pulley; 1203. Drive motor. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0049] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] Please see Figures 1-15As shown, an integrated syringe assembly and testing device includes a workbench 1. The top of the workbench 1 is sequentially equipped with a core rod feeding assembly 3, a plunger feeding docking assembly 4, a barrel feeding docking assembly 6, a sealing performance testing assembly 8, and a dispensing assembly 9. The plunger feeding docking assembly 4 is used for docking and installing the plunger and core rod, and the barrel feeding docking assembly 6 is used for docking and installing the barrel and the core rod with the plunger installed. A switching platform 2 for switching syringe components between different workstations is provided on the top of the workbench 1 via a rotary drive assembly 12. The rotary drive assembly 12 includes a reducer 1201 bolted to the top of the workbench 1. One end of the output shaft of the reducer 1201 is fixed to the switching platform 2. A drive motor 1203 is bolted inside the workbench 1. One end of the output shaft of the drive motor 1203 and one end of the power shaft of the reducer 1201 are both bolted to synchronous pulleys 1202. The two synchronous pulleys 1202 are connected by a synchronous belt drive. The top of the platform 2 is provided with multiple placement components 10 for positioning and supporting syringe components at different workstations. The placement components 10 include an assembly frame 1003 fixed to the top of the switching platform 2 by bolts. The top of the assembly frame 1003 is provided with a core rod slot 1001 for positioning and supporting the core rod and a cylinder slot 1002 for positioning and supporting the cylinder. The top of the worktable 1, located between the plunger loading docking assembly 4 and the cylinder loading docking assembly 6, is provided with a plunger adjustment assembly 5 for adjusting the plunger installation. The top of the worktable 1, located between the cylinder loading docking assembly 6 and the sealing test assembly 8, is provided with a pull-out adjustment assembly 7 for adjusting the fit between the plunger and the cylinder after the syringe is assembled. The top of the worktable 1, located on one side of the core rod loading assembly 3, the plunger loading docking assembly 4, the plunger adjustment assembly 5 and the cylinder loading docking assembly 6, is provided with a switching component 11 for picking up and putting down syringe components from the placement components 10.

[0052] In the medical industry, syringes are extremely common and crucial medical devices, widely used in various medical procedures such as vaccination, drug injection, and blood collection, and their demand is increasing daily. With the advancement of medical standards and the development of global public health, more stringent requirements are being placed on the production efficiency and quality standards of syringes.

[0053] Traditional syringe production relies heavily on manual or semi-automatic assembly.

[0054] In the assembly of components such as the core rod, plunger, and cylinder, manual operation is inefficient, and errors are easily introduced due to factors such as human fatigue and skill differences, resulting in poor product consistency and difficulty in guaranteeing the yield rate. Although semi-automatic equipment improves efficiency to some extent, it still requires a large amount of manual assistance, thus limiting overall production efficiency.

[0055] In terms of testing, the existing methods also have many problems. Some companies use manual sampling, where inspectors check the finished products based on their experience. This method is highly subjective and makes it difficult to detect minor defects such as poor sealing.

[0056] Therefore, through the close cooperation of multiple mechanisms such as the core rod feeding assembly 3, the plunger feeding docking assembly 4, the cylinder feeding docking assembly 6, the sealing detection assembly 8, and the material distribution assembly 9, the automated feeding of the core rod, plunger, and cylinder, the docking and installation of the core rod and plunger, and the docking and installation of the core rod with the plunger installed with the cylinder are realized. The rotary drive assembly 12 drives the switching table 2 to rotate, and the placement component 10 set on the switching table 2 can effectively support and position the core rod, plunger, and cylinder in different work positions. At the same time, in order to realize the core rod, plunger, and cylinder to perform different operations in different work positions, the conversion component 11 is particularly important. The conversion component 11 can flip and remove the core rod in the placement component 10 and achieve precise docking and cooperation with different work positions by flipping it at different angles.

[0057] After the plunger and core rod are assembled, since the core rod is inserted into the plunger at its end and engages with the plunger, and the plunger is made of soft material, after the core rod and the plunger are assembled by the plunger feeding assembly 4, the end of the plunger and the core rod may not be tightly engaged, which will affect the subsequent assembly with the cylinder. After the core rod and the plunger are assembled, the plunger needs to be adjusted a second time.

[0058] Therefore, by setting a plunger adjustment process, such as a plunger adjustment component 5, between the plunger feeding docking assembly 4 and the cylinder feeding docking assembly 6, the plunger adjustment component 5 can adjust the plunger located at the end of the core rod by pressing and rotating in both directions, effectively solving the problem of the plunger and the end of the core rod not fitting tightly.

[0059] When testing the syringe's sealing performance after inserting the core rod and plunger into the barrel, the barrel is assembled with the assembled core rod and plunger via the barrel feeding docking assembly 6. The outer ring of the plunger generally has at least two layers of sealing edges with relatively thin walls. After being inserted and assembled into the barrel, irregular deformation of the sealing edge of the inserted plunger's outer ring can easily occur, affecting the syringe's sealing performance. Therefore, a secondary adjustment of the plunger and core rod inserted into the barrel is required.

[0060] Therefore, by setting an adjustment process for the plunger and core rod between the cylinder feeding docking assembly 6 and the sealing detection assembly 8, such as the pull-out adjustment assembly 7, the pull-out adjustment assembly 7 causes the plunger located inside the cylinder to move back and forth along the cylinder by performing a reciprocating pull-out action on the core rod. Under the action of the friction between the sealing edge of the outer ring of the plunger and the inner wall of the cylinder, the sealing edge of the outer ring of the plunger is effectively combed.

[0061] In this invention, the conversion component 11 includes a conversion bracket 1101 fixed to the top of the workbench 1 by bolts. A conversion motor 1102 is fixed to the top of the conversion bracket 1101 by bolts. A position adjustment frame 1105 is fixed to one end of the output shaft of the conversion motor 1102 by bolts. A conversion finger cylinder 1104 is fixed to one side of the position adjustment frame 1105 by bolts. A corresponding conversion clamping arm 1103 is fixed to one side of each of the two grippers of the conversion finger cylinder 1104 by bolts.

[0062] Specifically, the conversion component 11 effectively clamps the core rod by using the conversion finger cylinder 1104 and the conversion clamping arm 1103 in cooperation. Then, by starting the conversion motor 1102, the rotation of the conversion motor 1102 causes the position adjustment frame 1105 to drive the core rod clamped by the conversion finger cylinder 1104 and the conversion clamping arm 1103 to rotate at a specified angle, thereby enabling the core rod to be accurately moved from the placement component 10 to different workstations.

[0063] In this invention, the core rod feeding assembly 3 includes a core rod feeding bracket 306 bolted to the top of the workbench 1. Two core rod feeding sprockets 301 are rotatably connected to one side of the core rod feeding bracket 306 via bearing rods. A core rod feeding chain 303 is wound between the two core rod feeding sprockets 301. Multiple equally spaced core rod V-shaped seats 302 are bolted to the outer side of the core rod feeding chain 303. A core rod feeding plate 307 is bolted to one side of each core rod V-shaped seat 302. A core rod placement frame 304 is bolted to one side of the feeding bracket 306. Two core rod positioning plates 305 are inclinedly provided on the top of the core rod placement frame 304. A chamber for positioning and feeding the two ends of the core rod is formed between the two core rod positioning plates 305. A core rod clearance groove 309 is provided at the bottom of the core rod placement frame 304 to avoid the core rod feeding plate 307. A core rod feeding motor 308 is provided on the other side of the core rod feeding bracket 306 to drive any one of the core rod feeding sprockets 301 to rotate.

[0064] Specifically, by placing the core rods in an orderly manner within the cavity formed by the two core rod positioning plates 305, and then starting the core rod feeding motor 308, the core rod feeding motor 308 rotates, driving the two core rod feeding sprockets 301 to rotate and causing the core rod feeding chain 303 to rotate. At this time, the core rod feeding chain 303 drives the core rod V-shaped seat 302 to move until the core rod V-shaped seat 302 moves to the position of the core rod relief groove 309. At this time, the core rod pusher plate 307 pushes out one of the core rods at the bottom of the cavity, and the core rod falls from the core rod pusher plate 307 into the core rod V-shaped seat 302, and moves along the core rod feeding chain 303 to the designated position. At this time, the conversion component 11 located on one side of the core rod feeding assembly 3 starts and takes out the core rod in the core rod V-shaped seat 302 and places it on the switching table 2 and its corresponding placement component 10.

[0065] This enables automated positioning and feeding of the core rod, as well as precise transfer of the core rod from the core rod feeding assembly 3 to the switching table 2.

[0066] In this invention, the plunger feeding assembly 4 includes a plunger feeding bracket 402 and a vibratory feeder 401, which are bolted to the top of the worktable 1. The vibratory feeder 401 is used for the orderly positioning and feeding of the plunger. A plunger limiting frame 404 that cooperates with the discharge end of the vibratory feeder 401 is bolted to one side of the plunger feeding bracket 402. The end of the plunger limiting frame 404 is provided with a plunger contouring groove 407 for guiding the plunger. A plunger side positioning groove 4 is provided on one side of the plunger limiting frame 404 for positioning the plunger position and the core rod flipping position. 05. The plunger contour groove 407 is provided with a plunger support 406 for ejecting the plunger that fits with the plunger side positioning groove 405. A plunger docking lifting cylinder 403 is fixed to one side of the plunger feeding bracket 402 by bolts. A plunger docking lifting cylinder 403 is fixed to one end of the piston rod of the plunger docking lifting cylinder 403 by bolts. A plunger docking top material frame 409 is fixed to the top of the plunger docking top material frame 409 by bolts. The top of the plunger docking top material frame 408 passes through the plunger limiting frame 404 and is fixed to the bottom of the plunger support 406.

[0067] It should be noted that the vibratory feeder 401 is existing technology, and those skilled in the art can set it up according to actual needs, which will not be elaborated here.

[0068] Specifically, by placing the plunger into the vibratory feeder 401, the vibratory feeder 401 is started, and the plunger inside the vibratory feeder 401 moves in an orderly manner into the plunger contouring groove 407 opened in the plunger limiting frame 404 that docks with it. Then, the conversion component 11 located on one side of the plunger feeding docking assembly 4 is activated, and the core rod on the corresponding placement component 10 is clamped and flipped to contact the plunger side positioning groove 405. At this time, the core rod is in a vertical state. At the same time, by activating the plunger docking lifting cylinder 403, the plunger docking lifting cylinder 403 retracts. The short plunger docking ejector 409 drives the plunger docking ejector seat 408 to move upward, and the plunger docking ejector seat 408 ejects the plunger support 406 and the plunger inside the plunger support 406. When the plunger is ejected, it moves upward along the plunger side positioning groove 405 until the plunger is inserted into the end of the core rod. Then the plunger docking lifting cylinder 403 extends to drive the plunger support 406 to move downward and reset. Meanwhile, the conversion component 11 rotates in the opposite direction and puts the assembled core rod and plunger back into the placement component 10, thereby completing the precise assembly and docking of the core rod and plunger.

[0069] In this invention, the plunger adjustment assembly 5 includes a plunger adjustment bracket 501 fixed to the top of the workbench 1 by bolts. A plunger adjustment lifting cylinder 502 is fixed to one side of the plunger adjustment bracket 501 by bolts. A plunger adjustment top material frame 503 is fixed to one end of the piston rod of the plunger adjustment lifting cylinder 502 by bolts. A plunger adjustment rotary cylinder 504 is fixed to the upper surface of the plunger adjustment top material frame 503 by bolts. A plunger adjustment pressure seat 505 is fixed to one end of the rotating shaft of the plunger adjustment rotary cylinder 504 by bolts. A plunger adjustment pressure cavity 506 that cooperates with the plunger is opened inside the plunger adjustment pressure seat 505.

[0070] Specifically, by activating the conversion component 11 located on one side of the plunger adjustment assembly 5, the core rod and plunger on the corresponding placement component 10 are clamped and flipped to a vertical position. Then, the plunger adjustment lifting cylinder 502 is activated. The plunger adjustment lifting cylinder 502 shortens, causing the plunger adjustment top material frame 503 to drive the plunger adjustment rotating cylinder 504 and the plunger adjustment pressure seat 505 to move upward until the plunger adjustment pressure cavity 506 inside the plunger adjustment pressure seat 505 contacts the plunger at the bottom end of the core rod clamped on the conversion component 11 and is squeezed. Then, the plunger adjustment rotating cylinder 504 is activated. The plunger adjustment rotating cylinder 504 rotates back and forth at small angles, thereby adjusting the plunger at the bottom end of the core rod and making the plunger and the end of the core rod more tightly engaged.

[0071] In this invention, the cylinder loading docking assembly 6 includes a cylinder loading bracket 606 bolted to the top of the workbench 1. Two cylinder loading sprockets 601 are rotatably connected to one side of the cylinder loading bracket 606 via bearing rods. A cylinder loading chain 603 is wound between the two cylinder loading sprockets 601. Multiple equally spaced cylinder V-shaped seats 602 are bolted to the outer side of the cylinder loading chain 603. A cylinder feeding plate 607 is bolted to one side of each cylinder V-shaped seat 602. A cylinder placement frame 604 is bolted to one side of the cylinder loading bracket 606. Two cylinder positioning plates 605 are inclinedly arranged on the top of the cylinder placement frame 604. One cylinder positioning plate 605 has a front contour groove 616 on one side to support the front end of the cylinder, and the other cylinder positioning plate 605 has a clearance groove 617 inside to avoid the flange position of the tail end of the cylinder. The two cylinder positioning plates 605 form a chamber for positioning and feeding the cylinder. The bottom end of the cylinder placement frame 604 has a cylinder clearance groove 615 to avoid the cylinder feeding plate 607. The other side of the cylinder feeding bracket 606 has a cylinder feeding motor 608 to drive any one of the cylinder feeding sprockets 601 to rotate. One side of the cylinder feeding bracket 606 has a blocking positioning mechanism to position the cylinder at the docking position with the core rod.

[0072] Specifically, by placing the cylinders in an orderly manner within the cavity formed by the two cylinder positioning plates 605, and then starting the cylinder feeding motor 608, the rotation of the cylinder feeding motor 608 drives the two cylinder feeding sprockets 601 to rotate and the cylinder feeding chain 603 to rotate. At this time, the cylinder feeding chain 603 drives the cylinder V-shaped seat 602 to move until the cylinder V-shaped seat 602 moves to the position of the cylinder clearance groove 615. At this point, the cylinder deflector plate 607 pushes out one of the cylinders at the bottom of the cavity, causing the cylinder to fall from the cylinder deflector plate 607 into the cylinder V-shaped seat 602 and move along the cylinder feeding chain 605. 3. When the cylinder is moved to the designated position, the cylinder inside the cylinder V-shaped seat 602 is blocked by the blocking positioning mechanism. When the cylinder position is moved (that is, when the cylinder inside the cylinder V-shaped seat 602 is blocked by the blocking positioning mechanism), the cylinder feeding motor 608 stops. At the same time, the conversion component 11 located on one side of the cylinder feeding docking assembly 6 starts and clamps the core rod and plunger on the corresponding placement component 10 and flips them to a horizontal state. At this time, due to the blocking positioning mechanism, the axis of the cylinder coincides with the axis of the flipped core rod and plunger. Then, the blocking positioning mechanism assists the cylinder to move laterally and docks with the plunger and core rod for assembly.

[0073] During this process, the cylinder needs to be positioned and moved laterally to ensure accurate docking between the cylinder and the plunger. The blocking and positioning mechanism includes a cylinder docking lifting cylinder 610 fixed to one side of the cylinder loading bracket 606 by bolts. One end of the piston rod of the cylinder docking lifting cylinder 610 is fixed to a cylinder docking transverse cylinder 609 by bolts. One end of the piston rod of the cylinder docking transverse cylinder 609 is fixed to a cylinder docking frame 611 by bolts. One side of the cylinder docking frame 611 is fixed to a docking post-limiting plate 612 for initial positioning of the cylinder by bolts. The end of the docking post-limiting plate 612 is partially intersected with the cylinder feeding plate 607. One end of the cylinder docking frame 611 is fixed to a docking pre-limiting plate 613 for secondary positioning of the cylinder by bolts. One side of the docking pre-limiting plate 613 is provided with an adaptive guide groove 614. An effective distance for cylinder pushing is left between the docking pre-limiting plate 613 and the cylinder feeding plate 607.

[0074] Specifically, during feeding, the cylinder is blocked and limited by the docking limit plate 612, and the cylinder feeding chain 603 is stopped at this time. Then, because the end of the docking limit plate 612 partially intersects with the cylinder feeding plate 607, the cylinder will not be squeezed out of the cylinder V-shaped seat 602 when it passes the docking limit plate 612. Then, the cylinder docking transverse cylinder 609 is activated. Figure 12 (The cylinder docking transverse cylinder 609 is in the initial state). The cylinder docking transverse cylinder 609 extends and pushes the whole (cylinder docking frame 611, docking rear limit plate 612 and docking front limit plate 613) to move along the length of the cylinder. Due to the effective gap between the docking front limit plate 613 and the cylinder material-pulling plate 607.

[0075] First: The front limiting plate 613 avoids the cylinder that moves through the cylinder feeding chain 603;

[0076] Second: The pre-dating limit plate 613 can perform dual positioning of the cylinder blocked by the post-dating limit plate 612 through the adaptive guide groove 614, effectively ensuring the accuracy of the cylinder position.

[0077] Then, the cylinder, which is doubly positioned by the front limiting plate 613 and the rear limiting plate 612, is pushed by the cylinder docking frame 611, and the cylinder is precisely docked and assembled with the plunger and the core rod.

[0078] After assembly, the cylinder docking transverse cylinder 609 shortens and resets, while the cylinder docking lifting cylinder 610 extends and resets. At this time, the docking limit plate 612 avoids the cylinder material feeding plate 607.

[0079] In this invention, the pull-out adjustment assembly 7 includes a pull-out adjustment bracket 702 fixed to the top of the workbench 1 by bolts. A pull-out adjustment ball screw linear module 701 is fixed to the top of the pull-out adjustment bracket 702 by bolts. A pull-out adjustment moving frame 703 is fixed to the bottom of the slide of the pull-out adjustment ball screw linear module 701 by bolts. A pull-out adjustment finger cylinder 704 is fixed to one side of the pull-out adjustment finger cylinder 704 by bolts. A matching pull-out adjustment clamping arm 705 is fixed to one side of each of the two grippers of the pull-out adjustment finger cylinder 704 by bolts. A side bracket 706 is fixed to one side of the pull-out adjustment bracket 702 by bolts. A pressing cylinder 707 is fixed to one side of the side bracket 706 by bolts. A pressing plate 708 is fixed to one end of the piston rod of the pressing cylinder 707 by bolts. A rubber pressure block 709 for pressing and fixing the cylinder is adhered to the bottom of the pressing plate 708.

[0080] Specifically, the assembled core rod, plunger, and cylinder need to be pulled and adjusted. When the placement component 10 is moved to the position of the pull-and-adjustment assembly 7 via the switching table 2, the pressing cylinder 707 is activated. The extension of the pressing cylinder 707 causes the pressing plate 708 to move downward and effectively press and fix the cylinder located in the placement component 10 via the rubber pressure block 709. Then, the slide of the pull-and-adjustment ball screw linear module 701 is moved to the designated position. At this time, the pull-and-adjustment finger cylinder 704 is activated and the core rod is clamped by the two pull-and-adjustment clamping arms 705. Then, the pull-and-adjustment ball screw linear module 701 is activated again and the slide completes the forward and reverse reciprocating movement. At this time, the pull-and-adjustment finger cylinder 704 follows the slide and reciprocates, completing the pull-and-adjustment operation of the core rod.

[0081] In this invention, the sealing test component 8 includes a sealing test bracket 802 fixed to the top of the workbench 1 by bolts. A sealing test ball screw linear module 801 is fixed to the top of the sealing test bracket 802 by bolts. A sealing test moving frame 803 is fixed to the bottom of the slide of the sealing test ball screw linear module 801 by bolts. A column pressure sensor 804 is fixed to one side of the sealing test moving frame 803 by bolts. The column pressure sensor 804 is model SBT673-50kg. A side bracket 805 is fixed to one side of the sealing test bracket 802 by bolts. A pressing cylinder 806 is fixed to one side of the side bracket 805 by bolts. A pressing plate 807 is fixed to one end of the piston rod of the pressing cylinder 806 by bolts. A rubber block 808 for pressing and fixing the cylinder is bonded to the bottom of the pressing plate 807. A plurality of sealing mechanisms corresponding to the placement component 10 are fixed to the top of the switching table 2 by bolts.

[0082] There are multiple sealing mechanisms, each corresponding to one of the placement components 10.

[0083] The sealing mechanism includes a sealing cylinder 810 that is bolted to the top of the switching table 2. One end of the piston rod of the sealing cylinder 810 is bolted to a sealing plug sleeve 809, and the inside of the sealing plug sleeve 809 fits the shape of the front end of the cylinder.

[0084] Specifically, after the core rod, plunger, and cylinder have been pulled and adjusted, a sealing test is required. When the placement component 10 moves to the sealing test component 8 via the switching table 2, the second pressing cylinder 806 extends, causing the second pressing plate 807 to move downwards. The rubber pressure block 808 effectively presses and fixes the cylinder inside the placement component 10. Then, the sealing cylinder 810 is activated, extending to make the sealing plug 809 contact and engage with the front end of the cylinder, thus achieving a seal at the front end of the cylinder. Then, the sealing test ball screw linear module 801 is activated. The slide table moves the sealing test moving frame 803 and the column pressure sensor 804 until the column pressure sensor 804 contacts the end of the core rod. Then the slide table continues to move. At this time, the column pressure sensor 804 squeezes the core rod. The core rod is under force, which drives the plunger to move along the inner wall of the cylinder. The air inside the cylinder and the plunger are compressed. At this time, the required thrust is increasing. The column pressure sensor 804 monitors this pressure in real time. If the required thrust does not reach the preset value, it means that the air inside the cylinder and the plunger is leaking, which is a failure to meet the sealing requirements. Otherwise, it is qualified.

[0085] After the sealing test is completed, the sealing test ball screw linear module 801 drives the column pressure sensor 804 to move in the opposite direction to reset. At this time, the core rod and plunger rebound and reset under the action of air pressure. Then, the sealing cylinder 810 shortens and drives the sealing plug sleeve 809 to move in the opposite direction to reset and contact the sealing state at the front end of the cylinder. Then, the pressing cylinder 806 shortens and drives the pressing plate 807 and the rubber pressure block 808 to move upward to reset and release the pressing and fixing state of the cylinder.

[0086] In this invention, the material distribution assembly 9 includes a material distribution bracket 908 fixed to the top of the workbench 1 by bolts. A material distribution ball screw linear module 901 is fixed to the top of the material distribution bracket 908 by bolts. A material distribution rotary motor 902 is fixed to the top of the slide of the material distribution ball screw linear module 901 by bolts. A material distribution rotary frame 903 is fixed to one end of the output shaft of the material distribution rotary motor 902 by bolts. A material distribution finger cylinder 904 is fixed to one side of the material distribution rotary frame 903 by bolts. A matching material distribution clamping arm 905 is fixed to one side of each of the two grippers of the material distribution finger cylinder 904 by bolts. A double-type material distribution hopper 906 that matches the material distribution assembly 9 is fixed to the top of the workbench 1 by bolts. A double-type material distribution box 907 is provided at the top of the workbench 1 and below the double-type material distribution hopper 906.

[0087] Specifically, the material distribution rotary motor 902 is started, causing the material distribution rotary frame 903 and the material distribution finger cylinder 904 to flip to the designated position. At this time, by starting the material distribution finger cylinder 904, the two grippers of the material distribution finger cylinder 904 move inward and clamp the core rod, plunger and cylinder assembly after the sealing test is completed through the material distribution clamping arm 905. Then the material distribution rotary motor 902 rotates in the opposite direction and drives the core rod, plunger and cylinder assembly to flip in the opposite direction to the designated position.

[0088] After passing the sealing test of the sealing test component 8, the core rod, plunger and cylinder assembly are released from the clamping state by the clamping arm 905 of the clamping finger cylinder 904. The qualified core rod, plunger and cylinder assembly fall into one hopper of the double-type clamping hopper 906 and then fall into one box of the double-type clamping box 907. This is a qualified product.

[0089] If the core rod, plunger, or cylinder assembly fails the sealing test by the sealing test component 8, the slide of the linear ball screw module 901 will drive the core rod, plunger, and cylinder assembly clamped by the distributing rotary motor 902 and the distributing clamping arm 905 to move until the core rod, plunger, and cylinder assembly move into the other hopper of the dual distributing hopper 906. Then, the distributing clamping arm 905 of the distributing finger cylinder 904 will directly release the clamping state, and the core rod, plunger, and cylinder assembly that failed the test will fall into the other hopper of the dual distributing hopper 906, and then fall along the dual distributing hopper 906 into the other hopper of the dual distributing box 907. This is a defective product.

[0090] It should be noted that the core rod feeding motor 308, the cylinder feeding motor 608, the material distribution rotary motor 902, the conversion motor 1102, and the drive motor 1203 are all servo motors equipped with encoders. The number of rotations and angles of the motor shafts are controllable and the precision is high.

[0091] It should be noted that the linear ball screw module 701 for pull-out adjustment, the linear ball screw module 801 for sealing detection, and the linear ball screw module 901 for material distribution are existing technologies. The linear ball screw module achieves precise linear motion through the coordinated operation of various components: the slide table is the moving part, the ball screw and guide rail form the transmission core, the motor and coupling provide power, the photoelectric switch ensures closed-loop control, and the aluminum alloy profile and support base ensure structural stability.

[0092] It should be noted that the cylinders used in this application are all existing technologies. They can be used in conjunction with magnetic switches, proximity switches or photoelectric switches to achieve precise control of the extension and retraction displacement of the cylinder piston rod. Those skilled in the art can set them according to actual needs, which will not be elaborated here.

[0093] The present invention is used in the following steps:

[0094] S1: First, place the core rods in an orderly manner in the cavity formed by the two core rod positioning plates 305. Then, start the core rod feeding motor 308. The core rod feeding motor 308 rotates, driving the two core rod feeding sprockets 301 to rotate and the core rod feeding chain 303 to rotate. At this time, the core rod feeding chain 303 drives the core rod V-shaped seat 302 to move until the core rod V-shaped seat 302 moves to the position of the core rod relief groove 309. At this time, the core rod push plate 307 pushes out one of the core rods at the bottom of the cavity and makes the core rod fall from the core rod push plate 307 into the core rod V-shaped seat 302. It then moves along the core rod feeding chain 303 to the designated position. At this time, the conversion component 11 located on one side of the core rod feeding assembly 3 starts and takes out the core rod in the core rod V-shaped seat 302 and places it on the switching table 2 and its corresponding placement component 10.

[0095] S2: Then the rotary drive assembly 12 drives the switching table 2 to rotate until the placement component 10 with the core rod rotates and moves to the station of the plunger feeding docking assembly 4;

[0096] S3: At this time, the plunger is placed into the vibratory feeder 401. The vibratory feeder 401 is then started, and the plungers inside the vibratory feeder 401 are moved in an orderly manner into the plunger contour groove 407 opened in the plunger limiting frame 404 that docks with it. Then, the conversion component 11 located on one side of the plunger feeding docking assembly 4 is activated, and the core rod on the corresponding placement component 10 is clamped and flipped to contact the plunger side positioning groove 405. At this time, the core rod is in a vertical state. At the same time, by activating the plunger docking lifting cylinder 403, the plunger docking lifting cylinder 403 shortens. The plunger docking ejector 409 drives the plunger docking ejector seat 408 to move upward, and the plunger docking ejector seat 408 ejects the plunger support 406 and the plunger inside the plunger support 406. When the plunger is ejected, it moves upward along the plunger side positioning groove 405 until the plunger is inserted into the end of the core rod. Then the plunger docking lifting cylinder 403 extends to drive the plunger support 406 to move downward and reset. Meanwhile, the conversion component 11 rotates in the opposite direction and puts the assembled core rod and plunger back into the placement component 10, thereby completing the precise assembly and docking of the core rod and plunger.

[0097] S4: Then the rotary drive assembly 12 drives the switching table 2 to rotate again until the placement part 10, which contains the core rod and the plunger, rotates and moves to the position of the plunger adjustment assembly 5.

[0098] S5: At this time, the conversion component 11 located on one side of the plunger adjustment assembly 5 is activated, and the core rod and plunger on the corresponding placement component 10 are clamped and flipped to a vertical state. Then, the plunger adjustment lifting cylinder 502 is activated. The plunger adjustment lifting cylinder 502 shortens, causing the plunger adjustment top material frame 503 to drive the plunger adjustment rotating cylinder 504 and the plunger adjustment pressure seat 505 to move upward until the plunger adjustment pressure cavity 506 opened inside the plunger adjustment pressure seat 505 contacts the plunger at the bottom end of the core rod clamped on the conversion component 11 and is squeezed. Then, the plunger adjustment rotating cylinder 504 is activated. The plunger adjustment rotating cylinder 504 rotates back and forth at small angles, thereby adjusting the plunger at the bottom end of the core rod and making the plunger and the end of the core rod more tightly engaged.

[0099] S6: Then the rotary drive assembly 12 drives the switching table 2 to rotate again until the placement component 10, which contains the core rod and plunger, rotates and moves to the station of the cylinder loading docking assembly 6.

[0100] S7: At this point, the cylinders are placed in an orderly manner within the cavity formed by the two cylinder positioning plates 605. Then, the cylinder feeding motor 608 is started. The rotation of the cylinder feeding motor 608 drives the two cylinder feeding sprockets 601 to rotate and the cylinder feeding chain 603 to rotate. At this time, the cylinder feeding chain 603 drives the cylinder V-shaped seat 602 to move until the cylinder V-shaped seat 602 moves to the position of the cylinder clearance groove 615. Then, the cylinder deflector plate 607 pushes out one of the cylinders at the bottom of the cavity, causing the cylinder to fall from the cylinder deflector plate 607 into the cylinder V-shaped seat 602 and move along the cylinder feeding chain 605. 3. When the cylinder is moved to the designated position, the cylinder inside the cylinder V-shaped seat 602 is blocked by the blocking positioning mechanism. When the cylinder position is moved (that is, when the cylinder inside the cylinder V-shaped seat 602 is blocked by the blocking positioning mechanism), the cylinder feeding motor 608 stops. At the same time, the conversion component 11 located on one side of the cylinder feeding docking assembly 6 starts and clamps the core rod and plunger on the corresponding placement component 10 and flips them to a horizontal state. At this time, due to the blocking positioning mechanism, the axis of the cylinder coincides with the axis of the flipped core rod and plunger. Then, the blocking positioning mechanism assists the cylinder to move laterally and docks with the plunger and core rod for assembly.

[0101] S8: Then the rotary drive assembly 12 drives the switching table 2 to rotate again until the placement part 10, which contains the core rod, plunger and cylinder, rotates and moves to the position of the pull-out debugging assembly 7;

[0102] S9: At this time, the pressing cylinder 707 is activated. The extension of the pressing cylinder 707 causes the pressing plate 708 to move downward and effectively press and fix the cylinder located in the placement component 10 through the rubber pressure block 709. Then, the slide of the ball screw linear module 701 is moved to the designated position. At this time, the pulling and adjusting finger cylinder 704 is activated and the core rod is clamped by the two pulling and adjusting clamping arms 705. Then, the pulling and adjusting ball screw linear module 701 is activated again and the slide completes the forward and reverse reciprocating movement. At this time, the pulling and adjusting finger cylinder 704 follows the slide and reciprocates, and completes the pulling and adjusting operation of the core rod.

[0103] S10: Then the rotary drive assembly 12 drives the switching table 2 to rotate again until the placement component 10, which contains the core rod, plunger and cylinder, rotates and moves to the position of the sealing test assembly 8;

[0104] S11: At this time, the second pressing cylinder 806 extends, driving the second pressing plate 807 to move downward, and effectively pressing and fixing the cylinder inside the placement component 10 through the second rubber pressure block 808. Then, the sealing cylinder 810 is activated, and the sealing cylinder 810 extends, causing the sealing plug sleeve 809 to contact and fit with the front end of the cylinder, thereby achieving a seal at the front end of the cylinder. Then, the sealing performance detection ball screw linear module 801 is activated. At this time, the slide table drives the sealing performance detection moving frame 803 and the column pressure sensor 804 to move until the column pressure sensor 804 contacts the end of the core rod. Then the slide table continues to move, and at this time, the column pressure sensor 804 squeezes the core rod. The core rod is under force, which drives the plunger to move along the inner wall of the cylinder. The air inside the cylinder and the plunger are compressed, and the required thrust becomes larger and larger. The column pressure sensor 804 monitors this pressure in real time. If the required thrust does not reach the preset value, it means that the air inside the cylinder and the plunger leaks, which is a failure to seal. Otherwise, it is qualified.

[0105] S12: After the sealing test is completed, the sealing test ball screw linear module 801 drives the column pressure sensor 804 to move in the opposite direction to reset. At this time, the core rod and plunger rebound and reset under the action of air pressure. At this time, the sealing cylinder 810 shortens and drives the sealing plug sleeve 809 to move in the opposite direction to reset and contact the sealing state at the front end of the cylinder. Then, the pressing cylinder 806 shortens and drives the pressing plate 807 and the rubber pressure block 808 to move upward to reset and release the pressing and fixing state of the cylinder.

[0106] S13: Then the rotary drive assembly 12 drives the switching table 2 to rotate again until the placement component 10, which contains the core rod, plunger and cylinder, rotates and moves to the work position of the material distribution assembly 9;

[0107] S14: At this time, start the material distribution rotary motor 902 to make the material distribution rotary frame 903 and the material distribution finger cylinder 904 flip to the designated position. At this time, by starting the material distribution finger cylinder 904, the two grippers of the material distribution finger cylinder 904 move inward and clamp the core rod, plunger and cylinder assembly after the sealing test is completed through the material distribution clamping arm 905. Then the material distribution rotary motor 902 rotates in the opposite direction and drives the core rod, plunger and cylinder assembly to flip in the opposite direction to the designated position.

[0108] After passing the sealing test of the sealing test component 8, the core rod, plunger and cylinder assembly are released from the clamping state by the clamping arm 905 of the clamping finger cylinder 904. The qualified core rod, plunger and cylinder assembly fall into one hopper of the double-type clamping hopper 906 and then fall into one box of the double-type clamping box 907. This is a qualified product.

[0109] If the core rod, plunger, and cylinder assembly fails the sealing test by the sealing test component 8, the slide of the linear ball screw module 901 will drive the core rod, plunger, and cylinder assembly clamped by the distributing rotary motor 902 and the distributing clamping arm 905 to move until the core rod, plunger, and cylinder assembly move into the other hopper of the dual distributing hopper 906. Then, the distributing clamping arm 905 of the distributing finger cylinder 904 will directly release the clamping state, and the core rod, plunger, and cylinder assembly that failed the test will fall into the other hopper of the dual distributing hopper 906 and fall into the other hopper of the dual distributing box 907. This is a defective product.

[0110] S15: By repeating this cycle, the automated assembly and testing process of the core rod, plunger, and cylinder is completed.

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An integrated syringe assembly and testing device, comprising a workbench (1), characterized in that, The top of the workbench (1) is sequentially provided with a core rod feeding assembly (3), a plunger feeding docking assembly (4), a cylinder feeding docking assembly (6), a sealing test assembly (8), and a dispensing assembly (9). The plunger feeding docking assembly (4) is used for docking and installing the plunger and the core rod. The cylinder feeding docking assembly (6) is used for docking and installing the cylinder and the core rod with the plunger installed. The top of the workbench (1) is provided with a switching platform (2) for switching syringe parts to different work positions via a rotary drive assembly (12). The top of the switching platform (2) is provided with multiple placement components (10) for positioning and supporting syringe parts at different work positions. A plunger adjustment assembly (5) for adjusting the plunger installation is provided at the top and between the plunger loading dock assembly (4) and the barrel loading dock assembly (6). A pull-out adjustment assembly (7) for adjusting the fit between the plunger and the barrel after the syringe is assembled is provided at the top of the worktable (1) and between the barrel loading dock assembly (6) and the sealing detection assembly (8). A conversion assembly (11) for switching the syringe parts from the placement component (10) is provided at the top of the worktable (1) and on one side of the core rod loading assembly (3), the plunger loading dock assembly (4), the plunger adjustment assembly (5) and the barrel loading dock assembly (6).

2. The syringe integrated assembly and testing device according to claim 1, characterized in that, The conversion component (11) includes a conversion bracket (1101) fixedly connected to the top of the workbench (1). A conversion motor (1102) is fixedly connected to the top of the conversion bracket (1101). A position adjustment frame (1105) is fixedly connected to one end of the output shaft of the conversion motor (1102). A conversion finger cylinder (1104) is fixedly connected to one side of the position adjustment frame (1105). A corresponding conversion clamping arm (1103) is fixedly connected to one side of each of the two grippers of the conversion finger cylinder (1104). The placement component (10) includes an assembly frame (1003) fixedly connected to the top of the switching table (2). The top of the assembly frame (1003) is provided with a core rod slot (1001) for positioning and supporting the core rod and a cylinder slot (1002) for positioning and supporting the cylinder.

3. The syringe integrated assembly and testing device according to claim 1, characterized in that, The core rod feeding assembly (3) includes a core rod feeding bracket (306) fixedly connected to the top of the workbench (1). Two core rod feeding sprockets (301) are rotatably connected to one side of the core rod feeding bracket (306) via a bearing rod. A core rod feeding chain (303) is wound between the two core rod feeding sprockets (301). Multiple equally spaced core rod V-shaped seats (302) are fixedly connected to the outside of the core rod feeding chain (303). A core rod feeding plate (307) is fixedly connected to one side of the core rod V-shaped seat (302). A core rod placement frame (304) is fixedly connected to one side of the (306) and two core rod positioning plates (305) are inclinedly provided on the top of the core rod placement frame (304). A chamber for positioning and feeding the two ends of the core rod is formed between the two core rod positioning plates (305). A core rod avoidance groove (309) for avoiding the core rod feeding plate (307) is provided at the bottom of the core rod placement frame (304). A core rod feeding motor (308) for driving any one of the core rod feeding sprockets (301) to rotate is provided on the other side of the core rod feeding bracket (306).

4. The integrated syringe assembly and testing device according to claim 1, characterized in that, The plunger feeding assembly (4) includes a plunger feeding bracket (402) and a vibratory feeder (401) fixedly connected to the top of the workbench (1). The vibratory feeder (401) is used for the orderly positioning and feeding of the plunger. A plunger limiting frame (404) that cooperates with the discharge end of the vibratory feeder (401) is fixedly connected to one side of the plunger feeding bracket (402). The end of the plunger limiting frame (404) is provided with a plunger contouring groove (407) for guiding the plunger. A plunger side positioning groove (407) is provided on one side of the plunger limiting frame (404) for positioning the plunger position and the core rod flipping position. 05), the plunger contour groove (407) is provided with a plunger support (406) for ejecting the plunger that fits with the plunger side positioning groove (405). A plunger docking lifting cylinder (403) is fixedly connected to one side of the plunger feeding bracket (402). A plunger docking lifting cylinder (403) is fixedly connected to one end of the piston rod of the plunger docking lifting cylinder (403). A plunger docking top material frame (409) is fixedly connected to the top of the plunger docking top material frame (409). The top of the plunger docking top material frame (408) passes through the plunger limiting frame (404) and is fixed to the bottom of the plunger support (406).

5. The syringe integrated assembly and testing device according to claim 1, characterized in that, The plunger adjustment assembly (5) includes a plunger adjustment bracket (501) fixedly connected to the top of the workbench (1). A plunger adjustment lifting cylinder (502) is fixedly connected to one side of the plunger adjustment bracket (501). A plunger adjustment top material rack (503) is fixedly connected to one end of the piston rod of the plunger adjustment lifting cylinder (502). A plunger adjustment rotary cylinder (504) is fixedly connected to the upper surface of the plunger adjustment top material rack (503). A plunger adjustment pressure seat (505) is fixedly connected to one end of the rotating shaft of the plunger adjustment rotary cylinder (504). A plunger adjustment pressure chamber (506) that cooperates with the plunger is opened inside the plunger adjustment pressure seat (505).

6. The integrated syringe assembly and testing device according to claim 1, characterized in that, The cylinder loading docking assembly (6) includes a cylinder loading bracket (606) fixedly connected to the top of the workbench (1). Two cylinder loading sprockets (601) are rotatably connected to one side of the cylinder loading bracket (606) via a bearing rod. A cylinder loading chain (603) is wound between the two cylinder loading sprockets (601). Multiple equally spaced cylinder V-shaped seats (602) are fixedly connected to the outside of the cylinder loading chain (603). A cylinder feeding plate (607) is fixedly connected to one side of the cylinder V-shaped seat (602). A cylinder placement frame (604) is fixedly connected to one side of the cylinder loading bracket (606). Two cylinder positioning plates (605) are inclinedly provided on the top of the cylinder placement frame (604), one of which is a cylinder. The positioning plate (605) has a front contour groove (616) on one side to support the front end of the cylinder. The other cylinder positioning plate (605) has a deep groove (617) inside to avoid the flange position of the tail end of the cylinder. The two cylinder positioning plates (605) form a chamber for positioning and feeding the cylinder. The bottom end of the cylinder placement rack (604) has a cylinder avoidance groove (615) to avoid the cylinder feeding plate (607). The other side of the cylinder feeding bracket (606) has a cylinder feeding motor (608) to drive any one of the cylinder feeding sprockets (601) to rotate. The side of the cylinder feeding bracket (606) has a blocking positioning mechanism to position the cylinder at the docking position with the core rod. The blocking and positioning mechanism includes a cylinder docking lifting cylinder (610) fixedly connected to one side of the cylinder loading bracket (606). One end of the piston rod of the cylinder docking lifting cylinder (610) is fixedly connected to a cylinder docking transverse cylinder (609). One end of the piston rod of the cylinder docking transverse cylinder (609) is fixedly connected to a cylinder docking frame (611). One side of the cylinder docking frame (611) is fixedly connected to a docking rear limiting plate (612) for initial positioning of the cylinder. The end of the docking rear limiting plate (612) is partially intersected with the cylinder material-pushing plate (607). One end of the cylinder docking frame (611) is fixedly connected to a docking front limiting plate (613) for secondary positioning of the cylinder. One side of the docking front limiting plate (613) is provided with an adaptive guide groove (614). An effective distance for cylinder pushing is left between the docking front limiting plate (613) and the cylinder material-pushing plate (607).

7. The integrated syringe assembly and testing device according to claim 1, characterized in that, The pull-out adjustment assembly (7) includes a pull-out adjustment bracket (702) fixedly connected to the top of the workbench (1). A pull-out adjustment ball screw linear module (701) is fixedly connected to the top of the pull-out adjustment bracket (702). A pull-out adjustment moving frame (703) is fixedly connected to the bottom of the slide of the pull-out adjustment ball screw linear module (701). A pull-out adjustment finger cylinder (704) is fixedly connected to one side of the pull-out adjustment moving frame (703). One side of each of the two grippers of 704) is fixedly connected to a matching pull-out adjustment gripper arm (705). One side of the pull-out adjustment bracket (702) is fixedly connected to a side bracket (706). One side of the side bracket (706) is fixedly connected to a pressing cylinder (707). One end of the piston rod of the pressing cylinder (707) is fixedly connected to a pressing plate (708). The bottom of the pressing plate (708) is fixedly connected to a rubber pressure block (709) for pressing and fixing the cylinder.

8. The syringe integrated assembly and testing device according to claim 1, characterized in that, The sealing test assembly (8) includes a sealing test bracket (802) fixedly connected to the top of the workbench (1). A sealing test ball screw linear module (801) is fixedly connected to the top of the sealing test bracket (802). A sealing test moving frame (803) is fixedly connected to the bottom of the slide of the sealing test ball screw linear module (801). A column pressure sensor (804) is fixedly connected to one side of the sealing test moving frame (803). A side bracket (805) is fixedly connected to one side of the sealing test bracket (802). A pressing cylinder (806) is fixedly connected to one side of the side bracket (805). A pressing plate (807) is fixedly connected to one end of the piston rod of the pressing cylinder (806). A rubber block (808) for pressing and fixing the cylinder is fixedly connected to the bottom of the pressing plate (807). A plurality of sealing mechanisms corresponding to the placement component (10) are fixedly connected to the top of the switching table (2). The sealing mechanism includes a sealing cylinder (810) fixedly connected to the top of the switching table (2). One end of the piston rod of the sealing cylinder (810) is fixedly connected to a sealing plug sleeve (809). The inside of the sealing plug sleeve (809) fits the outer shape of the front end of the cylinder.

9. The integrated syringe assembly and testing device according to claim 1, characterized in that, The material distribution assembly (9) includes a material distribution bracket (908) fixedly connected to the top of the workbench (1). A material distribution ball screw linear module (901) is fixedly connected to the top of the material distribution bracket (908). A material distribution rotary motor (902) is fixedly connected to the top of the slide of the material distribution ball screw linear module (901). A material distribution rotary frame (903) is fixedly connected to one end of the output shaft of the material distribution rotary motor (902). A material distribution finger cylinder (904) is fixedly connected to one side of the material distribution finger cylinder (904). A matching material distribution clamping arm (905) is fixedly connected to one side of each of the two grippers of the material distribution finger cylinder (904). A double-type material distribution hopper (906) that matches the material distribution assembly (9) is fixedly connected to the top of the workbench (1). A double-type material distribution box (907) is provided at the top of the workbench (1) and below the double-type material distribution hopper (906).

10. The syringe integrated assembly and testing device according to claim 1, characterized in that, The rotary drive assembly (12) includes a reducer (1201) fixedly connected to the top of the workbench (1). One end of the output shaft of the reducer (1201) is fixed to the switch (2). A drive motor (1203) is fixedly connected inside the workbench (1). One end of the output shaft of the drive motor (1203) and one end of the power shaft of the reducer (1201) are both fixedly connected to a synchronous pulley (1202). The two synchronous pulleys (1202) are connected by a synchronous belt drive.

Images