Plastic needle feeding mechanism

Abstract

The application provides a plastic needle feeding mechanism, which comprises a first bottom plate, two first vertical plates arranged on the first bottom plate, a first top plate connected with the top ends of the first vertical plates, a first cylinder and a first sliding rail arranged on the upper surface of the first bottom plate, a first sliding block matched with the first sliding rail and arranged on a plastic needle linear feeding and transferring mechanism, the first cylinder drives the plastic needle linear feeding and transferring mechanism to move when the plastic needle is in an upright state, a second cylinder and a second sliding rail arranged on the first top plate, a second sliding block matched with the second sliding rail and arranged on a plastic needle linear detection and rotating mechanism, the second cylinder drives the plastic needle linear detection and rotating mechanism to move, which is used for detecting the orientation of the air duct of the plastic needle and rotating the plastic needle with the air duct oriented to the back, a plastic needle receiving and turning mechanism arranged on the first bottom plate, which is used for obtaining the plastic needle with the air duct oriented to the front and turning over the plastic needle, and placing the plastic needle in a horizontal state on the next work station. The mechanism can automatically detect and adjust the orientation of the air duct in the plastic needle.

Description

Technical Field

[0001] This invention relates to the field of infusion set assembly technology, and more particularly to a plastic needle feeding mechanism. Background Technology

[0002] Plastic needles, also known as plastic vial needles, are an important component of medical intravenous infusion sets. Their function is to puncture the medication bottle and maintain unobstructed flow between the medication and the infusion tubing. Plastic needles typically consist of a needle body and an airway tube attached to the needle body. This airway tube connects to an air filter via a short exhaust tube.

[0003] Currently, during the assembly of infusion sets, the airway tube of the plastic needle needs to be assembled with the exhaust tube. However, in existing technologies, the feeding direction of some plastic needles is difficult to distinguish, making it impossible to use automated equipment on a large scale to assemble the plastic needles and exhaust tubes. Manufacturers can only replace the plastic needles or use manual assembly, ultimately resulting in low market circulation of this type of product and a corresponding increase in cost. Therefore, it is necessary to design a plastic needle feeding mechanism that can automatically detect and adjust the orientation of the airway tube in the plastic needle, ensuring that the airway tubes of each plastic needle are oriented in the same direction, facilitating subsequent assembly with the exhaust tube. Summary of the Invention

[0004] To address the problems existing in the prior art, this application proposes a plastic needle feeding mechanism that can automatically detect and adjust the orientation of the air passage tube in the plastic needle, so that the air passage tubes of each plastic needle are aligned, facilitating subsequent assembly with the exhaust short pipe.

[0005] To achieve the above objectives, this application proposes a plastic needle feeding mechanism, including a first support frame (5). The first support frame (5) includes a first base plate (501), on which two first upright plates (502) are provided opposite to each other. The top ends of the two first upright plates (502) are connected to a first top plate (503). A first cylinder (504) and a first slide rail (505) are provided on the upper surface of the first base plate (501). A first slider (506) that cooperates with the first slide rail (505) is mounted on a plastic needle linear feeding transfer mechanism (6). The telescopic rod of the first cylinder (504) is connected via a connecting rod... The connector is connected to the plastic needle linear material transfer mechanism (6), which can clamp N upright plastic needles (A), where N is a positive integer. The air passage of each plastic needle faces forward or backward. When the first cylinder (504) is driven, the plastic needle linear material transfer mechanism (6) can move forward to drag the plastic needle (A) to a preset position. At this time, the plastic needle (A) is in an upright state. A limiting mechanism (507) for limiting the travel of the plastic needle linear material transfer mechanism (6) is also provided on the upper surface of the first base plate (501). The first top plate (503) is connected to the first air passage mechanism (6) for limiting the travel of the plastic needle linear material transfer mechanism (6). The cylinder base plate (5013) is provided with a second cylinder (508), and a second slide rail (509) is also provided on the first top plate (503). A second slider (5010) that cooperates with the second slide rail (509) is mounted on the plastic needle linear detection rotating mechanism (7). The telescopic rod of the second cylinder (508) is connected to the plastic needle linear detection rotating mechanism (7) via a connector. The plastic needle linear detection rotating mechanism (7) is used to detect the orientation of the air passage of each plastic needle (A), obtain each plastic needle (A) at the plastic needle linear material transfer mechanism (6), and rotate the plastic needle (A) with the air passage facing backward so that the air passage faces forward. When the second cylinder (508) is driven to move, the plastic needle linear detection rotating mechanism (7) can move along the front and back direction. A limiting mechanism is also provided on the first top plate (503) to limit the movement stroke of the plastic needle linear detection rotating mechanism (7). A plastic needle receiving and turning mechanism (8) is also provided on the first bottom plate (501) to obtain the plastic needle (A) with the air passage tube facing forward at the plastic needle linear detection rotating mechanism (7), and can be flipped and turned so that the plastic needle (A) is in a horizontal state. At this time, the air passage tube faces downward, and the plastic needle (A) in the horizontal state is placed on the next station to complete the feeding operation.

[0006] In some embodiments, the structure of the plastic needle linear material transfer mechanism (6) is as follows: it includes a second base plate (601), the lower surface of the second base plate (601) is equipped with the first slider (506), two second upright plates (602) are provided opposite to each other on the second base plate (601), the top ends of the two second upright plates (602) are connected to the first mounting plate (603), a first pneumatic gripper seat plate (604) is fixedly provided on the first mounting plate (603), N first pneumatic grippers (605) are assembled on the first pneumatic gripper seat plate (604) along the left and right direction, each first pneumatic gripper (605) is provided with two first claw fingers (606) that cooperate with each other, when the first pneumatic gripper (605) is driven to move, the two first claw fingers (606) can grip or release the plastic needle (A).

[0007] In some embodiments, the structure of the plastic needle linear detection rotation mechanism (7) is as follows: it includes a first slide plate (701), the lower surface of the first slide plate (701) is equipped with a second slider (5010), a third cylinder (702) is provided on the upper surface of the first slide plate (701), the telescopic rod of the third cylinder (702) passes through a through hole provided on the first slide plate (701) and is connected to a first lifting plate (704) via a first connector (703), and a plurality of first guide shafts (705) are also provided on the upper surface of the first lifting plate (704), which are arranged symmetrically in two groups on the left and right sides of the third cylinder (702), and each first guide shaft (705) is connected to a corresponding first linear bearing (706). In conjunction with the first linear bearing (706), the first linear bearing (706) is mounted on the first slide plate (701). A first lifting limit plate (707) is also provided on the upper surface of the first slide plate (701) to limit the upward stroke of the first guide shaft (705). A plastic needle direction detection mechanism (708) and a plastic needle rotation mechanism (709) are sequentially provided on the lower surface of the first lifting plate (704) along the direction from front to back. The plastic needle direction detection mechanism (708) is used to detect the orientation of the air passage of each plastic needle (A). The plastic needle rotation mechanism (709) is used to obtain each plastic needle (A) at the plastic needle linear material transfer mechanism (6) and can rotate the plastic needle (A) with the air passage facing backward so that the air passage faces forward.

[0008] In some embodiments, the structure of the plastic needle direction detection mechanism (708) is as follows: it includes a second mounting plate (7081) mounted on the lower surface of the first lifting plate (704). Two third vertical plates (7082) are oppositely arranged on the lower surface of the second mounting plate (7081). The lower ends of the two third vertical plates (7082) are connected to a third mounting plate (7083). A fourth cylinder (7084) is mounted on the lower surface of the third mounting plate (7083). The telescopic rod of the fourth cylinder (7084) is connected to a probe base plate (7086) via a second connector (7085). Two second guide shafts (7088) are also connected to the probe base plate (7086), respectively positioned on the left and right sides of the fourth cylinder (7084). On the side, each second guide shaft (7088) is used in conjunction with a corresponding second linear bearing (7087). The two second linear bearings (7087) are mounted on the lower surface of the third mounting plate (7083). N probes (7089) are spaced apart along the left and right direction on the probe base plate (7086). N photoelectric sensors (70811) are also mounted on the probe base plate (7086) via N sensor base plates (70810). Each photoelectric sensor (70811) is used in conjunction with each probe (7089) in a one-to-one correspondence. The photoelectric sensor (70811) is connected to the control unit. Through the cooperation of the photoelectric sensor (70811) and the probe (7089), the orientation of the plastic needle (A) airway tube can be detected.

[0009] In some embodiments, the structure of the plastic needle rotation mechanism (709) is as follows: it includes a fourth mounting plate (7091) mounted on the lower surface of the first lifting plate (704). Two side support plates (7092) are provided opposite each other on the lower surface of the fourth mounting plate (7091). The lower ends of both side support plates (7092) are connected to a fifth mounting plate (7093). The fourth mounting plate (7091) has N mounting holes spaced apart along the left-right direction. Each mounting hole is rotatably connected to a rotating shaft (7096) via a first bearing (7094). The fifth mounting plate (7093) has N mounting holes corresponding to each other along the left-right direction. Each mounting hole is rotatably connected to a second bearing (7096). The bearing (7095) is rotatably connected to the rotating shaft (7096). The lower end of each rotating shaft (7096) is connected to a second pneumatic gripper (7099) via a connecting ring (7098). Each second pneumatic gripper (7099) is provided with two cooperating second claw fingers (70923). When the second pneumatic gripper (7099) is driven to move, the two cooperating second claw fingers (70923) can grip or release the plastic needle (A). A gear (7097) is fixedly sleeved on each rotating shaft (7096). The gear (7097) is located between the corresponding first bearing (7094) and second bearing (7095) and cooperates with all gears (7097). The rack (70915) is connected to the third slide rail (70914), which slides left and right along the third slider (70913) fixed on the slider fixing plate (70910). The slider fixing plate (70910) is fixed on the fourth mounting plate (7091). A second cylinder seat plate (70911) is provided on the slider fixing plate (70910). A fifth cylinder (70912) is assembled on the second cylinder seat plate (70911). The telescopic rod of the fifth cylinder (70912) is connected to the connecting rod (70917) via the third connector (70916). The connecting rod (70917) The cylinder push plate (70918), push plate fixing plate (70919), and rack (70915) are connected in sequence. When the fifth cylinder (70912) is driven to move, the rack (70915) can move in the left and right direction, driving each rotating shaft (7096) to rotate, so that the plastic needle (A) facing the rear of the air passage is rotated to face the front of the air passage. A limiting mechanism (70920) is also provided on the side support plate (7092) to limit the movement stroke of the rack (70915). The front and rear end faces of the fourth mounting plate (7091) can be provided with a first protective cover (70921) and a second protective cover (70922) respectively.

[0010] In some embodiments, the structure of the plastic needle receiving and turning mechanism (8) is as follows: it includes a third base plate (801) fixed on the first base plate (501), and two first bearing seats (802) are provided opposite to each other on the upper surface of the third base plate (801). Each first bearing seat (802) is connected to a rotating shaft (804) via a third bearing (803). The two ends of the rotating shaft (804) extend out of the corresponding first bearing seat (802). A first rotating limiting plate (805) is fixedly connected to one end of the rotating shaft (804). A first bearing seat (802) is provided on the first bearing seat (802) corresponding to the first rotating limiting plate (805). A buffer seat plate (806) is provided, on which two buffers are spaced apart and used to cooperate with the first flipping limiting plate (805), respectively for cooperating with the first flipping limiting plate (805) when the flipping shaft (804) rotates forward and reverse. The other end of the flipping shaft (804) is fixedly connected to a flipping connecting frame (807), on which a joint bearing through pin (809) is provided. The joint bearing through pin (809) is connected to an adapter (808) via a bearing. The adapter (808) is connected to the telescopic rod of the sixth cylinder (8010). The sixth cylinder (8010) The cylinder body of the sixth cylinder (8010) is connected to the second bearing seat plate (8012) at both ends via the fourth bearing (8011). The two second bearing seat plates (8012) are arranged opposite each other on the fourth base plate (8013), which is fixed to the first base plate (501). When the sixth cylinder (8010) is driven to move, the rotation of the flip shaft (804) can be realized. A guide shaft mounting bracket (8014) is fixedly connected to the flip shaft (804). Two third guide shafts (8015) are spaced apart along the vertical direction on the guide shaft mounting bracket (8014). Each third guide shaft (8015) is arranged along the horizontal direction. N second pneumatic gripper base plates (8016) are provided along the left and right direction. Each second pneumatic gripper base plate (8016) is provided with two third linear bearings (8019) that cooperate with the corresponding third guide shaft (8015), so that the second pneumatic gripper base plate (8016) can move left and right along the third guide shaft (8015). Each second pneumatic gripper base plate (8016) is provided with a third pneumatic gripper (8017). The third pneumatic gripper (8017) is provided with two third claw fingers (8018) that cooperate with each other. When the third pneumatic gripper (8017) is driven to move, the two third claw fingers (8018) can grip or release the plastic needle (A).A fifth bearing (8020) is connected to the front surface of each second pneumatic gripper seat plate (8016). A seventh cylinder (8024) is mounted on the guide shaft mounting bracket (8014). The telescopic rod of the seventh cylinder (8024) is connected to the slide plate seat plate (8023) via a fourth connector (8025). The slide plate seat plate (8023) is also connected to two fourth guide shafts (8026), which are respectively located on the left and right sides of the seventh cylinder (8024). Each fourth guide shaft (8026) is used in conjunction with a corresponding fourth linear bearing (8027). The two fourth linear bearings (8027) are mounted on the guide shaft mounting bracket (8014). A slide plate (8020) is fixed on the slide plate seat plate (8023). 21) The slide plate (8021) is provided with N slide tracks (8022) spaced apart. Each fifth bearing (8020) can slide in the corresponding slide track (8022). When the seventh cylinder (8024) is driven to move, causing the slide plate seat plate (8023) to move downward, each fifth bearing (8020) slides along the corresponding slide track (8022), driving the corresponding second pneumatic gripper seat plate (8016) to move along the third guide shaft (8015), increasing the distance between two adjacent second pneumatic gripper seat plates (8016). Conversely, when the seventh cylinder (8024) is driven to move, causing the slide plate seat plate (8023) to move upward, the distance between two adjacent second pneumatic gripper seat plates (8016) can be decreased.

[0011] The beneficial effect of this solution is that the above-mentioned plastic needle feeding mechanism can automatically detect and adjust the orientation of the air passage tube in the plastic needle, so that the orientation of each plastic needle air passage tube is consistent, which facilitates the subsequent assembly of the plastic needle and the exhaust short pipe. Attached Figure Description

[0012] Figure 1 A schematic diagram of the plastic needle feeding mechanism in the embodiment is shown.

[0013] Figure 2 An exploded view of the plastic needle feeding mechanism in the embodiment is shown.

[0014] Figure 3 A schematic diagram of the structure of the first support frame and related components in the embodiment is shown.

[0015] Figure 4 An exploded view of the linear material transfer mechanism for plastic needles in the embodiment is shown.

[0016] Figure 5 An exploded view of the rotating mechanism for linear detection of plastic needles in the embodiment is shown.

[0017] Figure 6 An exploded structural diagram of the plastic needle direction detection mechanism in the embodiment is shown.

[0018] Figure 7 An exploded view of the rotating needle mechanism in the embodiment is shown.

[0019] Figure 8 An exploded structural diagram of the plastic needle receiving and turning mechanism in the embodiment is shown.

[0020] Reference numerals: A - Plastic needle, 5 - First support frame, 501 - First base plate, 502 - First upright plate, 503 - First top plate, 504 - First cylinder, 505 - First slide rail, 506 - First slider, 507 - Limiting mechanism, 508 - Second cylinder, 509 - Second slide rail, 5010 - Second slider, 5011 - Limiting mechanism, 5012 - Limiting mechanism, 5013 - First cylinder seat plate, 6 - Plastic needle linear material handling transfer mechanism, 601 - Second base plate, 602 - Second upright plate, 603 - First mounting plate, 604 - First gripper seat plate, 605 - First gripper, 606 - First gripper finger, 7 - Plastic needle linear detection rotation mechanism, 701 - First slide plate, 702 - Third cylinder, 7 03-First connector, 704-First lifting plate, 705-First guide shaft, 706-First linear bearing, 707-First lifting limit plate, 708-Plastic needle direction detection mechanism, 7081-Second mounting plate, 7082-Third vertical plate, 7083-Third mounting plate, 7084-Fourth cylinder, 7085-Second connector, 7086-Probe base plate, 7087-Second linear bearing, 7088-Second guide shaft, 7089-Probe, 70810-Sensor base plate, 70811-Photoelectric sensor, 709-Plastic needle rotation mechanism, 7091-Fourth mounting plate, 7092-Side support plate, 7093-Fifth mounting plate, 7094-First bearing, 7095-Second... Bearing, 7096-Shaft, 7097-Gear, 7098-Connecting Ring, 7099-Second Pneumatic Gripper, 70910-Slider Fixing Plate, 70911-Second Cylinder Seat Plate, 70912-Fifth Cylinder, 70913-Third Slider, 70914-Third Slide Rail, 70915-Rack, 70916-Third Connector, 70917-Connecting Rod, 70918-Cylinder Push Plate, 70919-Push Plate Fixing Plate, 70920-Limiting Mechanism, 70921-First Protective Cover, 70922-Second Protective Cover, 70923-Second Claw, 8-Plastic Needle Receiving and Turning Mechanism, 801-Third Base Plate, 802-First Bearing Seat Plate, 803-Third Bearing, 804-Tilting Shaft, 8 05-First flipping limit plate, 806-First buffer seat plate, 807-Flipping connecting frame, 808-Adapter, 809-Joint bearing pin, 8010-Sixth cylinder, 8011-Fourth bearing, 8012-Second bearing seat plate, 8013-Fourth base plate, 8014-Guide shaft mounting bracket, 8015-Third guide shaft, 8016-Second pneumatic gripper seat plate, 8017-Third pneumatic gripper, 8018-Third gripper finger, 8019-Third linear bearing, 8020-Fifth bearing, 8021-Slide plate, 8022-Slide, 8023-Slide plate seat plate, 8024-Seventh cylinder, 8025-Fourth connector, 8026-Fourth guide shaft, 8027-Fourth linear bearing. Detailed Implementation

[0021] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0022] In the description of this application, it should be understood that the terms "first," "second," etc., are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence. The terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 a limitation of this application.

[0023] like Figures 1-8As shown, the plastic needle feeding mechanism involved in this application includes a first support frame 5, which includes a first base plate 501. Two first upright plates 502 are arranged opposite each other on the first base plate 501, and the tops of both first upright plates 502 are connected to a first top plate 503. A first cylinder 504 and a first slide rail 505 are provided on the upper surface of the first base plate 501. A first slider 506, which cooperates with the first slide rail 505, is mounted on a plastic needle linear feeding transfer mechanism 6. The telescopic rod of the first cylinder 504 is connected to the plastic needle linear feeding transfer mechanism 6 via a connector. The plastic needle linear feeding transfer mechanism 6 can clamp N There are N plastic needles A in an upright state, where N is a positive integer. The initial state of the N plastic needles A can be that they are in an upright state at the front end of the previous station, such as the front end of the plastic needle linear vibration feeding mechanism. The air passage of each plastic needle faces forward or backward. When the first cylinder 504 is driven to move, the plastic needle linear material picking transfer mechanism 6 can move forward to drag the plastic needle A to a preset position. At this time, the plastic needle A is in an upright state. A limiting mechanism 507 for limiting the movement stroke of the plastic needle linear material picking transfer mechanism 6 is also provided on the upper surface of the first base plate 501. The limiting mechanism 507 can include a limiting plate and a limiting post provided on the limiting plate. A second cylinder 508 is provided on the first top plate 503 via a first cylinder seat plate 5013. A second slide rail 509 is also provided on the first top plate 503. A second slider 5010, which cooperates with the second slide rail 509, is mounted on the plastic needle linear detection rotating mechanism 7. The telescopic rod of the second cylinder 508 is connected to the plastic needle linear detection rotating mechanism 7 via a connector. The plastic needle linear detection rotating mechanism 7 is used to detect the orientation of the air passage of each plastic needle A, obtain each plastic needle A at the plastic needle linear material transfer mechanism 6, and rotate the plastic needle A with the air passage facing backward so that the air passage faces forward. At this time, the plastic needle A is in an upright state. When the second cylinder 508 is driven to move, the plastic needle linear detection rotating mechanism 7 can move along the front and back direction. A limiting mechanism is also provided on the first top plate 503 to limit the movement stroke of the plastic needle linear detection rotating mechanism 7. For example, a limiting mechanism 5011 and a limiting mechanism 5012 are respectively provided on the first top plate 503 along the front and back direction. The first base plate 501 is also provided with a plastic needle receiving and turning mechanism 8, which is used to obtain the plastic needle A facing forward at the air duct of the plastic needle linear detection rotating mechanism 7, and can be flipped and turned so that the plastic needle A is in a horizontal state. At this time, the air duct faces downward, and the plastic needle A in the horizontal state is placed on the next station, such as the chain conveyor mechanism, to complete the feeding operation.

[0024] Specifically, the structure of the plastic needle linear material transfer mechanism 6 is as follows: it includes a second base plate 601, the lower surface of which is equipped with the first slider 506. Two second upright plates 602 are arranged opposite each other on the second base plate 601. The top ends of the two second upright plates 602 are connected to the first mounting plate 603. A first pneumatic gripper seat plate 604 is fixedly arranged on the first mounting plate 603. N first pneumatic grippers 605 are assembled on the first pneumatic gripper seat plate 604 along the left and right direction. Each first pneumatic gripper 605 is provided with two first claw fingers 606 that cooperate with each other. When the first pneumatic gripper 605 is driven to move, the two first claw fingers 606 can grip or release the plastic needle A.

[0025] The structure of the linear detection rotation mechanism 7 for the plastic needle is as follows: it includes a first slide plate 701, the lower surface of which is fitted with a second slider 5010. A third cylinder 702 is provided on the upper surface of the first slide plate 701. The telescopic rod of the third cylinder 702 passes through a through hole in the first slide plate 701 and is connected to a first lifting plate 704 via a first connector 703. A plurality of first guide shafts 705, for example four, are also provided on the upper surface of the first lifting plate 704, arranged symmetrically in two groups on the left and right sides of the third cylinder 702. Each first guide shaft 705 is used in conjunction with a corresponding first linear bearing 706. A linear bearing 706 is mounted on the first slide plate 701. A first lifting limit plate 707 is also provided on the upper surface of the first slide plate 701 to limit the upward stroke of the first guide shaft 705. A plastic needle direction detection mechanism 708 and a plastic needle rotation mechanism 709 are sequentially provided on the lower surface of the first lifting plate 704 along the front to back direction. The plastic needle direction detection mechanism 708 is used to detect the orientation of the air passage of each plastic needle A. The plastic needle rotation mechanism 709 is used to obtain each plastic needle A at the plastic needle linear material transfer mechanism 6, and can rotate the plastic needle A with the air passage facing backward so that the air passage faces forward. At this time, the plastic needle A is in an upright state.

[0026] The structure of the needle orientation detection mechanism 708 is as follows: It includes a second mounting plate 7081 mounted on the lower surface of the first lifting plate 704. Two third vertical plates 7082 are oppositely arranged on the lower surface of the second mounting plate 7081. The lower ends of both third vertical plates 7082 are connected to a third mounting plate 7083. A fourth cylinder 7084 is mounted on the lower surface of the third mounting plate 7083. The telescopic rod of the fourth cylinder 7084 is connected to a probe base plate 7086 via a second connector 7085. Two second guide shafts 7088 are also connected to the probe base plate 7086, respectively positioned on the left and right sides of the fourth cylinder 7084. The second guide shaft 7088 is used in conjunction with the corresponding second linear bearing 7087. The two second linear bearings 7087 are mounted on the lower surface of the third mounting plate 7083. N probes 7089 are spaced apart along the left and right direction on the probe base plate 7086. N photoelectric sensors 70811 are also mounted on the probe base plate 7086 via N sensor base plates 70810. Each photoelectric sensor 70811 is used in conjunction with each probe 7089. The photoelectric sensor 70811 is connected to the control unit. Through the cooperation of the photoelectric sensor 70811 and the probe 7089, the orientation of the plastic needle A airway tube can be detected. Specifically, when the fourth cylinder 7084 is activated, the probe base plate 7086 moves backward, detecting the orientation of the air passages of the N plastic needles A via N probes 7089. When the air passage in the plastic needle A is facing forward, the probe 7089 is compressed, causing its corresponding photoelectric sensor 70811 to send a signal to the control unit. At this point, it is known which plastic needles A have air passages facing forward and which have air passages facing backward. The forward-facing plastic needles A are then obtained through the plastic needle receiving and steering mechanism 8.

[0027] The structure of the plastic needle rotation mechanism 709 is as follows: it includes a fourth mounting plate 7091 mounted on the lower surface of the first lifting plate 704. Two side support plates 7092 are provided opposite each other on the lower surface of the fourth mounting plate 7091. The lower ends of both side support plates 7092 are connected to a fifth mounting plate 7093. The fourth mounting plate 7091 has N mounting holes spaced apart along the left-right direction. Each mounting hole is rotatably connected to a rotating shaft 7096 via a first bearing 7094. The fifth mounting plate 7093... The shaft has N mounting holes corresponding to the direction. Each mounting hole is rotatably connected to the rotating shaft 7096 via a second bearing 7095. The lower end of each rotating shaft 7096 is connected to a second pneumatic gripper 7099 via a connecting ring 7098. Each second pneumatic gripper 7099 has two cooperating second claw fingers 70923. When the second pneumatic gripper 7099 is driven to move, the two cooperating second claw fingers 70923 can grip or release the plastic needle A. A gear 7097 is fixedly sleeved on each rotating shaft 7096. 097 is located between the corresponding first bearing 7094 and second bearing 7095. A rack 70915, which meshes with all gears 7097, is connected to a third slide rail 70914. The third slide rail 70914 slides left and right along a third slider 70913 fixed to a slider fixing plate 70910. The slider fixing plate 70910 is fixed to a fourth mounting plate 7091. A second cylinder seat plate 70911 is provided on the slider fixing plate 70910, and a fifth cylinder 70912 is assembled thereon. On the second cylinder base plate 70911, the telescopic rod of the fifth cylinder 70912 is connected to the connecting rod 70917 via the third connector 70916. The connecting rod 70917, the cylinder push plate 70918, the push plate fixing plate 70919, and the rack 70915 are connected in sequence. When the fifth cylinder 70912 is driven to move, the rack 70915 can move in the left and right direction, driving each rotating shaft 7096 to rotate, thereby rotating the plastic needle A, which is facing backward, so that the air passage tube faces forward. A limiting mechanism 70920 is also provided on the side support plate 7092 to limit the travel of the rack 70915. The front and rear end faces of the fourth mounting plate 7091 can be respectively provided with a first protective cover 70921 and a second protective cover 70922.

[0028] The structure of the plastic needle receiving and turning mechanism 8 is as follows: it includes a third base plate 801 fixed on the first base plate 501. Two first bearing seats 802 are provided opposite to each other on the upper surface of the third base plate 801. Each first bearing seat 802 is connected to the flip shaft 804 via a third bearing 803. The two ends of the flip shaft 804 extend out of the corresponding first bearing seat 802. A first flip limiting plate 805 is fixedly connected to one end of the flip shaft 804. A first buffer seat plate 806 is provided on the first bearing seat 802 corresponding to the first flip limiting plate 805. Two buffers are provided at intervals on the first buffer seat plate 806 to cooperate with the first flip limiting plate 805. They are used to cooperate with the first flip limiting plate 805 when the flip shaft 804 rotates forward and reverse. In this embodiment, the flip shaft 804 can rotate 90 degrees forward and 90 degrees reverse.The other end of the flipping shaft 804 is fixedly connected to a flipping connecting frame 807. A spherical bearing through-pin 809 is provided on the flipping connecting frame 807. The spherical bearing through-pin 809 is connected to an adapter 808 via a bearing. The adapter 808 is connected to the telescopic rod of the sixth cylinder 8010. Both ends of the cylinder body of the sixth cylinder 8010 are connected to the second bearing seat plates 8012 via fourth bearings 8011. The two second bearing seat plates 8012 are respectively arranged opposite each other on a fourth base plate 8013. The fourth base plate 8013 is fixed to the first base plate 501. When the sixth cylinder 8010 is driven to operate, the flipping shaft 804 can be rotated. The flipping shaft 804 is fixed with... A guide shaft mounting bracket 8014 is connected, on which two third guide shafts 8015 are spaced apart along the vertical direction. Each third guide shaft 8015 is arranged along the horizontal direction, and N second pneumatic gripper base plates 8016 are arranged along the horizontal direction. Each second pneumatic gripper base plate 8016 has two third linear bearings 8019 that cooperate with the corresponding third guide shaft 8015, allowing the second pneumatic gripper base plate 8016 to move left and right along the third guide shaft 8015. Each second pneumatic gripper base plate 8016 has a third pneumatic gripper 8017, on which two third claw fingers 8018 cooperate with each other. When the third pneumatic gripper 8017 is driven... 7. During operation, the two third claw fingers 8018 can grip or release the plastic needle A; a fifth bearing 8020 is connected to the front surface of each second pneumatic gripper base plate 8016; a seventh cylinder 8024 is mounted on the guide shaft mounting bracket 8014; the telescopic rod of the seventh cylinder 8024 is connected to the slide plate base plate 8023 via a fourth connector 8025; the slide plate base plate 8023 is also connected to two fourth guide shafts 8026, which are respectively located on the left and right sides of the seventh cylinder 8024; each fourth guide shaft 8026 is used in conjunction with a corresponding fourth linear bearing 8027; the two fourth linear bearings 8027 are mounted on the guide shaft mounting bracket 8014; on the slide plate base plate... A slide plate 8021 is fixed on 8023. N slide rails 8022 are spaced apart on the slide plate 8021. Each fifth bearing 8020 can slide in the corresponding slide rail 8022. When the seventh cylinder 8024 is driven to move the slide plate seat 8023 downward, each fifth bearing 8020 slides along the corresponding slide rail 8022, driving the corresponding second pneumatic gripper seat 8016 to move along the third guide shaft 8015, increasing the distance between two adjacent second pneumatic gripper seat plates 8016. Conversely, when the seventh cylinder 8024 is driven to move the slide plate seat 8023 upward, the distance between two adjacent second pneumatic gripper seat plates 8016 can be decreased.

[0029] In practical use, the linear feeding transfer mechanism 6 can clamp N plastic needles A. When the first cylinder 504 is driven, the linear feeding transfer mechanism 6 can move forward to drag the plastic needles A to a preset position. The upper end of the plastic needle A is clamped by the second claw finger 70923 in the plastic needle rotation mechanism 709. At this time, the plastic needle A is jointly held by the linear feeding transfer mechanism 6 and the plastic needle rotation mechanism 709. The orientation of the air passage of each plastic needle A is detected by the plastic needle direction detection mechanism 708, and then the linear feeding of the plastic needles... The transfer mechanism 6 releases the plastic needle A and returns to its original position to begin the next round of material handling. The plastic needle facing the correct direction is picked up by the plastic needle receiving and turning mechanism 8. Then, the plastic needle rotating mechanism 709 rotates the plastic needle A with the air passage tube facing backward so that the air passage tube faces forward. At this time, the plastic needle A is in an upright state. Then, the remaining plastic needle A at the plastic needle rotating mechanism 709 is picked up by the plastic needle receiving and turning mechanism 8. The plastic needle receiving and turning mechanism 8 rotates 90° and places N horizontal plastic needles A on the next station, such as on the chain conveyor mechanism, to complete the plastic needle loading operation.

[0030] The plastic needle feeding mechanism involved in this application can automatically detect and adjust the orientation of the air passage tube in the plastic needle, so that the orientation of each plastic needle air passage tube is consistent, which facilitates the subsequent assembly of the plastic needle and the exhaust short pipe.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A plastic needle feeding mechanism, characterized in that: The system includes a first support frame (5), which includes a first base plate (501). Two first upright plates (502) are provided opposite to each other on the first base plate (501). The top ends of the two first upright plates (502) are connected to a first top plate (503). A first cylinder (504) and a first slide rail (505) are provided on the upper surface of the first base plate (501). A first slider (506) that cooperates with the first slide rail (505) is mounted on the plastic needle linear material handling transfer mechanism (6). The telescopic rod of the first cylinder (504) is connected to the plastic needle linear material handling transfer mechanism (6) via a connector. Connected to each other, the linear feeding transfer mechanism (6) for plastic needles can clamp N upright plastic needles (A), where N is a positive integer. The air passage of each plastic needle faces forward or backward. When the first cylinder (504) is driven, the linear feeding transfer mechanism (6) for plastic needles can move forward to drag the plastic needles (A) to a preset position. At this time, the plastic needles (A) are in an upright state. A limiting mechanism (507) for limiting the travel of the linear feeding transfer mechanism (6) for plastic needles is also provided on the upper surface of the first base plate (501). A first cylinder seat plate (5013) is provided on the first top plate (503) via the first cylinder seat plate (5013). Two cylinders (508) are provided with a second slide rail (509) on the first top plate (503). A second slider (5010) that works with the second slide rail (509) is mounted on the plastic needle linear detection rotating mechanism (7). The telescopic rod of the second cylinder (508) is connected to the plastic needle linear detection rotating mechanism (7) via a connector. The plastic needle linear detection rotating mechanism (7) is used to detect the orientation of the air passage of each plastic needle (A), obtain each plastic needle (A) at the plastic needle linear material transfer mechanism (6), and rotate the plastic needle (A) with the air passage facing backward to make the air passage face forward. When the drive of the When the second cylinder (508) is activated, the plastic needle linear detection rotating mechanism (7) can move along the front and back direction. A limiting mechanism is also provided on the first top plate (503) to limit the travel of the plastic needle linear detection rotating mechanism (7). A plastic needle receiving and turning mechanism (8) is also provided on the first bottom plate (501) to obtain the plastic needle (A) with the air passage at the plastic needle linear detection rotating mechanism (7) facing forward, and can be flipped and turned so that the plastic needle (A) is in a horizontal state. At this time, the air passage faces downward, and the plastic needle (A) in the horizontal state is placed on the next station to complete the feeding operation.

2. The plastic needle feeding mechanism according to claim 1, characterized in that: The structure of the plastic needle linear material transfer mechanism (6) is as follows: it includes a second base plate (601), the lower surface of the second base plate (601) is equipped with the first slider (506), two second upright plates (602) are provided opposite to each other on the second base plate (601), the top ends of the two second upright plates (602) are connected to the first mounting plate (603), a first air gripper seat plate (604) is fixedly provided on the first mounting plate (603), N first air grippers (605) are assembled on the first air gripper seat plate (604) along the left and right direction, each first air gripper (605) is provided with two first claw fingers (606) that cooperate with each other. When the first air gripper (605) is driven to move, the two first claw fingers (606) can grip or release the plastic needle (A).

3. The plastic needle feeding mechanism according to claim 2, characterized in that: The structure of the linear detection rotating mechanism (7) for the plastic needle is as follows: it includes a first slide plate (701), the lower surface of which is fitted with a second slider (5010), and a third cylinder (702) on the upper surface of the first slide plate (701). The telescopic rod of the third cylinder (702) passes through a through hole on the first slide plate (701) and is connected to a first lifting plate (704) via a first connector (703). A plurality of first guide shafts (705) are also provided on the upper surface of the first lifting plate (704), arranged symmetrically in two groups on the left and right sides of the third cylinder (702). Each first guide shaft (705) cooperates with a corresponding first linear bearing (706) to... The first linear bearing (706) is mounted on the first slide plate (701). A first lifting limit plate (707) is also provided on the upper surface of the first slide plate (701) to limit the upward stroke of the first guide shaft (705). A plastic needle direction detection mechanism (708) and a plastic needle rotation mechanism (709) are sequentially provided on the lower surface of the first lifting plate (704) along the direction from front to back. The plastic needle direction detection mechanism (708) is used to detect the orientation of the air passage of each plastic needle (A). The plastic needle rotation mechanism (709) is used to obtain each plastic needle (A) at the plastic needle linear material transfer mechanism (6) and can rotate the plastic needle (A) with the air passage facing backward so that the air passage faces forward.

4. The plastic needle feeding mechanism according to claim 3, characterized in that: The structure of the needle direction detection mechanism (708) is as follows: it includes a second mounting plate (7081) mounted on the lower surface of the first lifting plate (704). Two third vertical plates (7082) are oppositely arranged on the lower surface of the second mounting plate (7081). The lower ends of the two third vertical plates (7082) are connected to the third mounting plate (7083). A fourth cylinder (7084) is mounted on the lower surface of the third mounting plate (7083). The telescopic rod of the fourth cylinder (7084) is connected to the probe base plate (7086) via a second connector (7085). Two second guide shafts (7088) are also connected to the probe base plate (7086), respectively positioned on the left and right sides of the fourth cylinder (7084). The second guide shaft (7088) is used in conjunction with the corresponding second linear bearing (7087). The two second linear bearings (7087) are mounted on the lower surface of the third mounting plate (7083). N probes (7089) are spaced apart along the left and right direction on the probe base plate (7086). N photoelectric sensors (70811) are also mounted on the probe base plate (7086) via N sensor base plates (70810). Each photoelectric sensor (70811) is used in conjunction with each probe (7089). The photoelectric sensor (70811) is connected to the control unit. Through the cooperation of the photoelectric sensor (70811) and the probe (7089), the orientation of the plastic needle (A) airway tube can be detected.

5. The plastic needle feeding mechanism according to claim 4, characterized in that: The structure of the plastic needle rotation mechanism (709) is as follows: it includes a fourth mounting plate (7091) mounted on the lower surface of the first lifting plate (704). Two side support plates (7092) are provided opposite each other on the lower surface of the fourth mounting plate (7091). The lower ends of both side support plates (7092) are connected to a fifth mounting plate (7093). The fourth mounting plate (7091) has N mounting holes spaced apart along the left-right direction. Each mounting hole is rotatably connected to a rotating shaft (7096) via a first bearing (7094). The fifth mounting plate (7093) has N mounting holes corresponding to each other along the left-right direction. Each mounting hole is rotatably connected to a rotating shaft (7096) via a second bearing (7094). 95) Rotary connection of the rotating shaft (7096), the lower end of each rotating shaft (7096) is connected to a second pneumatic gripper (7099) via a connecting ring (7098), each second pneumatic gripper (7099) is provided with two cooperating second claw fingers (70923), when the second pneumatic gripper (7099) is driven to move, the two cooperating second claw fingers (70923) can grip or release the plastic needle (A); each rotating shaft (7096) is fixedly fitted with a gear (7097), the gear (7097) is located between the corresponding first bearing (7094) and second bearing (7095), and a rack that cooperates with all gears (7097) (70915) is connected to the third slide rail (70914). The third slide rail (70914) slides left and right along the third slider (70913) fixed on the slider fixing plate (70910). The slider fixing plate (70910) is fixed on the fourth mounting plate (7091). A second cylinder seat plate (70911) is provided on the slider fixing plate (70910). The fifth cylinder (70912) is assembled on the second cylinder seat plate (70911). The telescopic rod of the fifth cylinder (70912) is connected to the connecting rod (70917) via the third connector (70916). The connecting rod (70917) and the air... The cylinder push plate (70918), the push plate fixing plate (70919), and the rack (70915) are connected in sequence. When the fifth cylinder (70912) is driven to move, the rack (70915) can move in the left and right direction, driving each rotating shaft (7096) to rotate, so that the plastic needle (A) facing the rear of the air passage is rotated to make the air passage face forward. A limiting mechanism (70920) is also provided on the side support plate (7092) to limit the movement stroke of the rack (70915). The front and rear end faces of the fourth mounting plate (7091) are respectively provided with a first protective cover (70921) and a second protective cover (70922).

6. The plastic needle feeding mechanism according to claim 5, characterized in that: The structure of the plastic needle receiving and turning mechanism (8) is as follows: it includes a third base plate (801) fixed on the first base plate (501). The upper surface of the third base plate (801) is provided with two first bearing seats (802) facing each other. Each first bearing seat (802) is connected to the flip shaft (804) via a third bearing (803). The two ends of the flip shaft (804) extend out of the corresponding first bearing seat (802). One end of the flip shaft (804) is fixedly connected to a first flip limiting plate (805). A first buffer seat plate is provided on the first bearing seat (802) corresponding to the first flip limiting plate (805). (806) Two buffers are provided at intervals on the first buffer seat plate (806) to cooperate with the first flipping limit plate (805), respectively for cooperating with the first flipping limit plate (805) when the flipping shaft (804) rotates forward and reverse. The other end of the flipping shaft (804) is fixedly connected to a flipping connecting frame (807). A joint bearing through pin (809) is provided on the flipping connecting frame (807). The joint bearing through pin (809) is connected to the adapter (808) via a bearing. The adapter (808) is connected to the telescopic rod of the sixth cylinder (8010). The cylinder body of the sixth cylinder (8010) Both ends are connected to the second bearing seat plate (8012) via the fourth bearing (8011) respectively. The two second bearing seat plates (8012) are arranged opposite each other on the fourth base plate (8013). The fourth base plate (8013) is fixed on the first base plate (501). When the sixth cylinder (8010) is driven to move, the rotation of the flip shaft (804) can be realized. A guide shaft mounting bracket (8014) is fixedly connected to the flip shaft (804). Two third guide shafts (8015) are arranged at intervals along the vertical direction on the guide shaft mounting bracket (8014). Each third guide shaft (8015) is arranged along the horizontal direction. N second pneumatic gripper base plates (8016) are provided in the left and right directions. Each second pneumatic gripper base plate (8016) is provided with two third linear bearings (8019) that cooperate with the corresponding third guide shaft (8015), so that the second pneumatic gripper base plate (8016) can move left and right along the third guide shaft (8015). Each second pneumatic gripper base plate (8016) is provided with a third pneumatic gripper (8017). The third pneumatic gripper (8017) is provided with two third claw fingers (8018) that cooperate with each other. When the third pneumatic gripper (8017) is driven to move, the two third claw fingers (8018) can grip or release the plastic needle (A).A fifth bearing (8020) is connected to the front surface of each second pneumatic gripper seat plate (8016). A seventh cylinder (8024) is mounted on the guide shaft mounting bracket (8014). The telescopic rod of the seventh cylinder (8024) is connected to the slide plate seat plate (8023) via a fourth connector (8025). The slide plate seat plate (8023) is also connected to two fourth guide shafts (8026), which are respectively located on the left and right sides of the seventh cylinder (8024). Each fourth guide shaft (8026) is used in conjunction with a corresponding fourth linear bearing (8027). The two fourth linear bearings (8027) are mounted on the guide shaft mounting bracket (8014). A slide plate (8020) is fixed on the slide plate seat plate (8023). 21) The slide plate (8021) is provided with N slide rails (8022) spaced apart. Each fifth bearing (8020) can slide in the corresponding slide rail (8022). When the seventh cylinder (8024) is driven to move, causing the slide plate seat plate (8023) to move downward, each fifth bearing (8020) slides along the corresponding slide rail (8022), driving the corresponding second pneumatic gripper seat plate (8016) to move along the third guide shaft (8015), increasing the distance between two adjacent second pneumatic gripper seat plates (8016). Conversely, when the seventh cylinder (8024) is driven to move, causing the slide plate seat plate (8023) to move upward, the distance between two adjacent second pneumatic gripper seat plates (8016) can be decreased.

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