Plastic needle feeding mechanism

Abstract

The invention provides a plastic needle feeding mechanism which comprises a first bottom plate, two first vertical plates are arranged on the first bottom plate, the top ends of the first vertical plates are connected with a first top plate, a first air cylinder and a first sliding rail are arranged on the upper surface of the first bottom plate, and a first sliding block matched with the first sliding rail is installed on a plastic needle linear taking and transferring mechanism. The first air cylinder drives a plastic needle linear taking transfer mechanism capable of clamping a plastic needle in an upright state to move, a second air cylinder and a second sliding rail are arranged on the first top plate, a second sliding block matched with the second sliding rail is installed on a plastic needle linear detection rotating mechanism, and the second air cylinder drives the plastic needle linear detection rotating mechanism to move. The rotating mechanism is used for detecting the orientation of a plastic needle air channel pipe and rotating the plastic needle with the air channel pipe facing the rear side; a plastic needle receiving steering mechanism is arranged on the first bottom plate and used for obtaining the plastic needles, facing the front, of the air channel pipes at the position of the plastic needle linear detection rotating mechanism and can be turned over, and the plastic needles in the horizontal state are placed on the next station. The mechanism can automatically detect and adjust the orientation of the airway tube in the plastic needle.

Description

Technical Field

[0001] The invention relates to the technical field of infusion set assembly, and in particular to a plastic needle feeding mechanism. Background Art

[0002] Plastic needles, also known as plastic bottle insertion needles, are an important part of medical intravenous infusion sets. Their function is to puncture the medicine bottle and keep the medicine in the bottle unobstructed from the infusion tube. Plastic needles usually include a needle body and an airway tube connected to the needle body, and the airway tube is used to connect to the air filter through the exhaust short tube.

[0003] At present, during the assembly process of the infusion set, the airway tube of the plastic needle needs to be assembled with the exhaust short tube. However, in the prior art, it is difficult to distinguish the front and back feeding directions of some plastic needles, which makes it impossible to use automated equipment on a large scale to realize the assembly of the plastic needle and the exhaust short tube. Manufacturers can only replace plastic needle products or use manual assembly, which ultimately leads to a small market circulation of such products and a corresponding increase in costs. Therefore, it is necessary to design a plastic needle feeding mechanism that can automatically detect and adjust the direction of the airway tube in the plastic needle so that the direction of the airway tube of each plastic needle is consistent, which is convenient for subsequent assembly with the exhaust short tube. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present application proposes a plastic needle feeding mechanism so that it can automatically detect and adjust the direction of the airway tube in the plastic needle, so that the direction of the airway tube of each plastic needle is consistent, which is convenient for subsequent assembly with the exhaust short pipe.

[0005] In order to achieve the above-mentioned purpose, the present application proposes a plastic needle feeding mechanism, comprising a first support frame (5), wherein the first support frame (5) comprises a first bottom plate (501), two first vertical plates (502) are arranged opposite to each other on the first bottom plate (501), the top ends of the two first vertical plates (502) are connected to the first top plate (503), a first cylinder (504) and a first slide rail (505) are arranged on the upper surface of the first bottom plate (501), a first slider (506) used in conjunction with the first slide rail (505) is assembled on the plastic needle linear material transfer mechanism (6), and the telescopic rod of the first cylinder (504) is connected to the first top plate (503). The connector is connected to the plastic needle linear material transfer mechanism (6), and the plastic needle linear material transfer mechanism (6) can clamp N plastic needles (A) in an upright state, where N is a positive integer, and the airway tube of each plastic needle faces forward or backward. When the first cylinder (504) is driven to operate, 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 limit mechanism (507) for limiting the moving stroke of the plastic needle linear material transfer mechanism (6) is also provided on the upper surface of the first bottom plate (501); a first air cylinder (504) is provided on the first top plate (503) to move the plastic needle (A) to a preset position. The cylinder seat plate (5013) is provided with a second cylinder (508), and a second slide rail (509) is also provided on the first top plate (503). The second slider (5010) used in conjunction with the second slide rail (509) is assembled 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 direction of the airway tube of each plastic needle (A), obtain each plastic needle (A) at the plastic needle linear material transfer mechanism (6), and rotate the airway tube toward the rear plastic needle (A) so that the airway tube faces the front When the second air cylinder (508) is driven to operate, the plastic needle linear detection rotating mechanism (7) can move in the front-rear direction, and a limit mechanism is also provided on the first top plate (503) for limiting the moving stroke of the plastic needle linear detection rotating mechanism (7); a plastic needle material receiving and steering mechanism (8) is also provided on the first bottom plate (501) for obtaining the plastic needle (A) facing forward from the airway tube 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 airway tube faces downward, and the plastic needle (A) in a horizontal state is placed on the next workstation to complete the loading 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 vertical plates (602) are oppositely arranged on the second base plate (601), the top ends of the two second vertical plates (602) are connected to the first mounting plate (603), a first air claw seat plate (604) is fixedly arranged on the first mounting plate (603), the first air claw seat plate (604) is equipped with N first air claws (605) along the left and right directions, each first air claw (605) is provided with two first claw fingers (606) used in conjunction with each other, when the first air claw (605) is driven to move, the two first claw fingers (606) can clamp the plastic needle (A) 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 the second slide block (5010), the upper surface of the first slide plate (701) is provided with a third cylinder (702), the telescopic rod of the third cylinder (702) passes through a through hole provided on the first slide plate (701) and is connected to the 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 divided into two groups and symmetrically provided on the left and right sides of the third cylinder (702), and each first guide shaft (705) is connected to the corresponding first linear bearing (706) ) are used in conjunction with the first linear bearing (706) which is passed through 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 rising stroke of the first guide shaft (705); a plastic needle direction detection mechanism (708) and a plastic needle rotation mechanism (709) are provided on the lower surface of the first lifting plate (704) in sequence from front to back. The plastic needle direction detection mechanism (708) is used to detect the direction of the airway tube of each plastic needle (A), and 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 airway tube toward the rear plastic needle (A) so that the airway tube 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), and two third vertical plates (7082) are oppositely arranged on the lower surface of the second mounting plate (7081), and the lower ends of the two third vertical plates (7082) are connected to the third mounting plate (7083), and a fourth cylinder (7084) is mounted on the lower surface of the third mounting plate (7083), and the telescopic rod of the fourth cylinder (7084) is connected to the probe base plate (7086) via a second connecting head (7085), and two second guide shafts (7088) are also connected to the probe base plate (7086), and the two are respectively arranged on the left and right sides of the fourth cylinder (7084). On the side, each second guide shaft (7088) is used in conjunction with the corresponding second linear bearing (7087), and the two second linear bearings (7087) are mounted on the lower surface of the third mounting plate (7083). N probes (7089) are provided on the probe seat plate (7086) at intervals along the left and right directions. The probe seat plate (7086) is also equipped with N photoelectric sensors (70811) via N sensor seat 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 between the photoelectric sensor (70811) and the probe (7089), the direction of the plastic needle (A) airway tube can be detected.

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

[0010] In some embodiments, the structure of the plastic needle material diverting mechanism (8) is as follows: it includes a third bottom plate (801) fixed on the first bottom plate (501), and two first bearing seat plates (802) are oppositely arranged on the upper surface of the third bottom plate (801), and each first bearing seat plate (802) is connected to the flip shaft (804) via a third bearing (803), and both ends of the flip shaft (804) extend out of the corresponding first bearing seat plates (802), and one end of the flip shaft (804) is fixedly connected to a first flip limit plate (805), and a first bearing seat plate (802) corresponding to the first flip limit plate (805) is provided. A buffer seat plate (806), wherein two buffers are arranged at intervals on the first buffer seat plate (806) for use with the first flip limit plate (805), and are respectively used to cooperate with the first flip limit plate (805) when the flip shaft (804) rotates forward and reversely, and the other end of the flip shaft (804) is fixedly connected to a flip connection frame (807), and a joint bearing through pin (809) is arranged on the flip connection frame (807), and the joint bearing through pin (809) is connected to an adapter (808) via a bearing, and the adapter (808) is connected to a telescopic rod of a sixth cylinder (8010), and the sixth cylinder (8010) ) are connected to the second bearing seat plate (8012) via the fourth bearing (8011) at both ends of the cylinder body, the two second bearing seat plates (8012) are arranged on the fourth bottom plate (8013) opposite to each other, the fourth bottom plate (8013) is fixed on the first bottom plate (501), and when the sixth cylinder (8010) is driven to move, the rotation of the flip shaft (804) can be realized; a guide shaft mounting frame (8014) is fixedly connected to the flip shaft (804), and two third guide shafts (8015) are arranged on the guide shaft mounting frame (8014) at intervals along the up-down direction, and each third guide shaft (8015) is arranged along the left-right direction. , N second air gripper base plates (8016) are provided along the left-right direction, and each second air gripper base plate (8016) is provided with two third linear bearings (8019) used in conjunction with the corresponding third guide shaft (8015), so that the second air gripper base plate (8016) can move left and right along the third guide shaft (8015), and each second air gripper base plate (8016) is provided with a third air gripper (8017), and the third air gripper (8017) is provided with two third claw fingers (8018) used in conjunction with each other, and when the third air gripper (8017) is driven to move, the plastic needle (A) can be clamped or released through the two third claw fingers (8018);A fifth bearing (8020) is connected to the front surface of each second air claw seat plate (8016), a seventh air cylinder (8024) is mounted on the guide shaft mounting frame (8014), the telescopic rod of the seventh air 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), the two are arranged on the left and right sides of the seventh air 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 frame (8014), and the slide plate (8023) is fixed with a fourth linear bearing (8027). 21), the slide plate (8021) is provided with N slideways (8022) at intervals, and each fifth bearing (8020) can slide in the corresponding slideway (8022). When the seventh cylinder (8024) is driven to move the slide plate seat plate (8023) downward, each fifth bearing (8020) slides along the corresponding slideway (8022), driving the corresponding second air claw seat plate (8016) to move along the third guide shaft (8015), thereby increasing the distance between two adjacent second air claw seat plates (8016); conversely, when the seventh cylinder (8024) is driven to move the slide plate seat plate (8023) upward, the distance between two adjacent second air claw seat plates (8016) can be reduced. ;

[0011] The beneficial effect of this solution of the present application is that the above-mentioned plastic needle feeding mechanism can automatically detect and adjust the orientation of the airway tube in the plastic needle, so that the orientation of the airway tubes of each plastic needle is consistent, which facilitates the subsequent assembly of the plastic needle and the exhaust short pipe. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 A schematic diagram of the exploded structure of the plastic needle feeding mechanism in the embodiment is shown.

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

[0015] Figure 4 A schematic diagram of the exploded structure of the plastic needle linear material taking and transfer mechanism in the embodiment is shown.

[0016] Figure 5 A schematic diagram of the exploded structure of the plastic needle linear detection rotation mechanism in the embodiment is shown.

[0017] Figure 6 A schematic diagram of the exploded structure of the plastic needle direction detection mechanism in the embodiment is shown.

[0018] Figure 7 A schematic diagram of the exploded structure of the plastic needle rotating mechanism in the embodiment is shown.

[0019] Figure 8 A schematic diagram of the exploded structure of the plastic needle material receiving and diverting mechanism in the embodiment is shown.

[0020] Figure markings: A-plastic needle, 5-first supporting frame, 501-first bottom plate, 502-first vertical 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 transfer mechanism, 601-second bottom plate, 602-second vertical plate, 603-first mounting plate, 604-first air claw seat plate, 605-first air claw, 606-first claw finger, 7-plastic needle linear detection rotating 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 seat plate, 7087-second linear bearing, 7088-second guide shaft, 7089-probe, 70810-sensor seat 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-rotating shaft, 7097-gear, 7098-connecting ring, 7099-second air claw, 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 guard cover, 70922-second guard cover, 70923-second claw finger, 8-plastic needle material steering mechanism, 801-third bottom plate, 802-first bearing seat plate, 803-third bearing, 804-flip shaft, 8 05-the first flip limit plate, 806-the first buffer seat plate, 807-the flip connecting frame, 808-the adapter, 809-the joint bearing pin, 8010-the sixth cylinder, 8011-the fourth bearing, 8012-the second bearing seat plate, 8013-the fourth bottom plate, 8014-the guide shaft mounting frame, 8015-the third guide shaft, 8016-the second air claw seat plate, 8017-the third air claw, 8018-the third claw finger, 8019-the third linear bearing, 8020-the fifth bearing, 8021-the slide plate, 8022-the slide, 8023-the slide plate seat plate, 8024-the seventh cylinder, 8025-the fourth connecting head, 8026-the fourth guide shaft, 8027-the fourth linear bearing. DETAILED DESCRIPTION

[0021] The specific implementation of the present application is further described below in conjunction with the accompanying drawings.

[0022] In the description of the present 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", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0023] like Figures 1 to 8As shown, the plastic needle feeding mechanism involved in the present application includes a first support frame 5, and the first support frame 5 includes a first bottom plate 501. Two first vertical plates 502 are oppositely arranged on the first bottom plate 501, and the top ends of the two first vertical plates 502 are connected to the first top plate 503. A first cylinder 504 and a first slide rail 505 are arranged on the upper surface of the first bottom plate 501. A first slider 506 used in conjunction with the first slide rail 505 is assembled on the plastic needle linear material transfer mechanism 6. The telescopic rod of the first cylinder 504 is connected to the plastic needle linear material transfer mechanism 6 via a connecting head. The plastic needle linear material transfer mechanism 6 can clamp N There are plastic needles A in an upright state, N is a positive integer, and the initial state of the N plastic needles A can be in an upright state at the front end of the previous workstation, such as the front end of a plastic needle linear vibration feeding mechanism, and the airway tube of each plastic needle faces forward or backward. When the first cylinder 504 is driven to operate, 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, and a limiting mechanism 507 for limiting the moving stroke of the plastic needle linear material transfer mechanism 6 is also provided on the upper surface of the first bottom plate 501. The limiting mechanism 507 may include a limiting plate and a limiting column arranged on the limiting plate. A second cylinder 508 is provided on the first top plate 503 via a first cylinder seat plate 5013, and a second slide rail 509 is also provided on the first top plate 503. A second slider 5010 used in conjunction with the second slide rail 509 is assembled 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 connecting head. The plastic needle linear detection rotating mechanism 7 is used to detect the direction of the airway tube 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 facing the rear so that the airway tube faces the front. At this time, the plastic needle A is in an upright state. When the second cylinder 508 is driven to operate, the plastic needle linear detection rotating mechanism 7 can move along the front and rear directions. A limiting mechanism is also provided on the first top plate 503 for limiting the moving 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 rear directions. A plastic needle material receiving and steering mechanism 8 is also provided on the first bottom plate 501, which is used to obtain the plastic needle A with the airway tube facing forward at the plastic needle linear detection rotating mechanism 7, and can be flipped and turned to make the plastic needle A in a horizontal state. At this time, the airway tube faces downward, and the plastic needle A in a horizontal state is placed on the next workstation, such as a chain conveyor mechanism, to complete the loading operation.

[0024] Specifically, the structure of the plastic needle linear material transfer mechanism 6 is as follows: it includes a second bottom plate 601, the lower surface of the second bottom plate 601 is equipped with the first slider 506, two second vertical plates 602 are oppositely arranged on the second bottom plate 601, the top ends of the two second vertical 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 installed on the first air gripper seat plate 604 along the left and right directions, each first air gripper 605 is provided with two first claw fingers 606 used in conjunction with each other, when the first air gripper 605 is driven to move, the two first claw fingers 606 can clamp the plastic needle A or release the plastic needle A.

[0025] 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 the second slide block 5010, and the upper surface of the first slide plate 701 is provided with a third cylinder 702, and the telescopic rod of the third cylinder 702 passes through the through hole set on the first slide plate 701 and is connected to the first lifting plate 704 via the first connecting head 703, and the upper surface of the first lifting plate 704 is also provided with a plurality of first guide shafts 705, for example, four, which are divided into two groups and symmetrically arranged on the left and right sides of the third cylinder 702, and each first guide shaft 705 is used in conjunction with the corresponding first linear bearing 706. A linear bearing 706 is passed through the first slide plate 701, and a first lifting limit plate 707 is also provided on the upper surface of the first slide plate 701 to limit the rising stroke of the first guide shaft 705; a plastic needle direction detection mechanism 708 and a plastic needle rotation mechanism 709 are provided in sequence from front to back on the lower surface of the first lifting plate 704, the plastic needle direction detection mechanism 708 is used to detect the direction of the airway tube of each plastic needle A, and 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 facing the rear so that the airway tube faces the front, and the plastic needle A is in an upright state at this time.

[0026] 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 the third mounting plate 7083, and 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 seat plate 7086 via a second connecting head 7085, and two second guide shafts 7088 are also connected to the probe seat plate 7086, which are respectively arranged on the left and right sides of the fourth cylinder 7084, each 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 provided on the probe seat plate 7086 at intervals along the left and right directions. The probe seat plate 7086 is also equipped with N photoelectric sensors 70811 via N sensor seat plates 70810. Each photoelectric sensor 70811 is used in conjunction with each probe 7089 in a one-to-one manner. The photoelectric sensor 70811 is connected to the control unit. Through the cooperation between the photoelectric sensor 70811 and the probe 7089, the direction of the plastic needle A airway tube can be detected. Specifically, when the fourth air cylinder 7084 is driven to move, the probe base plate 7086 can move backward, and the directions of the airway tubes of the N plastic needles A are detected by the N probes 7089. When the airway tube in the plastic needle A faces forward, the probe 7089 will be compressed, so that the corresponding photoelectric sensor 70811 sends a signal to the control unit, and then it is known which plastic needles A have airway tubes facing forward and which plastic needles A have airway tubes facing backward. The plastic needle receiving material steering mechanism 8 is used to obtain the plastic needle A facing forward.

[0027] The structure of the plastic needle rotating mechanism 709 is as follows: it includes a fourth mounting plate 7091 mounted on the lower surface of the first lifting plate 704, the lower surface of the fourth mounting plate 7091 is provided with two side support plates 7092 opposite to each other, the lower ends of the two side support plates 7092 are connected to the fifth mounting plate 7093, the fourth mounting plate 7091 is provided with N mounting holes spaced along the left and right directions, each mounting hole is rotatably connected to a rotating shaft 7096 via a first bearing 7094, and the fifth mounting plate 7093 is provided along the left and right directions. There are N mounting holes corresponding to the direction, each mounting hole is rotatably connected to the rotating shaft 7096 via a second bearing 7095, and the lower end of each rotating shaft 7096 is connected to a second air gripper 7099 via a connecting ring 7098. Each second air gripper 7099 is provided with two second claw fingers 70923 used in conjunction with each other. When the second air gripper 7099 is driven to move, the two second claw fingers 70923 used in conjunction with each other can clamp or release the plastic needle A; each rotating shaft 7096 is fixedly sleeved with a gear 7097, and the gear 7097 is fixedly sleeved with a gear 7097. 097 is located between the corresponding first bearing 7094 and the second bearing 7095, and the rack 70915 used in conjunction with all gears 7097 is connected to the third slide rail 70914, and the third slide rail 70914 slides left and right along the third slider 70913 fixed on the slider fixing plate 70910, and the slider fixing plate 70910 is fixed on the fourth mounting plate 7091, and a second cylinder seat plate 70911 is provided on the slider fixing plate 70910, and the fifth cylinder 70912 is mounted on the 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, the push plate fixing plate 70919 and the rack 70915 are connected in sequence. When the fifth cylinder 70912 is driven to operate, the rack 70915 can move in the left and right directions, driving each rotating shaft 7096 to rotate, so as to rotate the plastic needle A facing the rear of the airway tube so that the airway tube faces the front. A limiting mechanism 70920 is also provided on the side support plate 7092 to limit the moving stroke of the rack 70915. The front and rear end faces of the fourth mounting plate 7091 can be provided with a first shield 70921 and a second shield 70922, respectively.

[0028] The structure of the plastic needle material receiving and steering mechanism 8 is as follows: it includes a third bottom plate 801 fixed on the first bottom plate 501, and two first bearing seat plates 802 are oppositely arranged on the upper surface of the third bottom plate 801, each first bearing seat plate 802 is connected to the flip shaft 804 via a third bearing 803, and both ends of the flip shaft 804 extend out of the corresponding first bearing seat plates 802 respectively, and one end of the flip shaft 804 is fixedly connected with a first flip limit plate 805, and a first buffer seat plate 806 is arranged on the first bearing seat plate 802 corresponding to the first flip limit plate 805, and two buffers used in conjunction with the first flip limit plate 805 are arranged at intervals on the first buffer seat plate 806, which are respectively used to cooperate with the first flip limit plate 805 when the flip shaft 804 rotates forward and reversely. In this embodiment, the flip shaft 804 can rotate forward 90 degrees and reverse 90 degrees.The other end of the flip shaft 804 is fixedly connected to a flip connecting frame 807, on which a joint bearing pin 809 is provided, and the joint bearing pin 809 is connected to an adapter 808 via a bearing, and the adapter 808 is connected to the telescopic rod of the sixth cylinder 8010, and both ends of the cylinder body of the sixth cylinder 8010 are respectively connected to the second bearing seat plate 8012 via a fourth bearing 8011, and the two second bearing seat plates 8012 are relatively arranged on a fourth bottom plate 8013, and the fourth bottom plate 8013 is fixed on the first bottom plate 501, and when the sixth cylinder 8010 is driven to move, the rotation of the flip shaft 804 can be realized; A guide shaft mounting frame 8014 is connected, and two third guide shafts 8015 are arranged on the guide shaft mounting frame 8014 at intervals along the up-down direction, and each third guide shaft 8015 is arranged along the left-right direction, and N second air gripper seat plates 8016 are arranged along the left-right direction, and each second air gripper seat plate 8016 is provided with two third linear bearings 8019 used in conjunction with the corresponding third guide shaft 8015, so that the second air gripper seat plate 8016 can move left and right along the third guide shaft 8015, and each second air gripper seat plate 8016 is provided with a third air gripper 8017, and the third air gripper 8017 is provided with two third claw fingers 8018 used in conjunction with each other. When the third air gripper 801 7 is in action, the two third claw fingers 8018 can clamp or release the plastic needle A; the front surface of each second air claw seat plate 8016 is connected with a fifth bearing 8020, and a seventh air cylinder 8024 is mounted on the guide shaft mounting frame 8014, and the telescopic rod of the seventh air cylinder 8024 is connected to the slide plate seat plate 8023 via a fourth connector 8025, and the slide plate seat plate 8023 is also connected to two fourth guide shafts 8026, which are disposed on the left and right sides of the seventh air cylinder 8024, and each fourth guide shaft 8026 is used in conjunction with the corresponding fourth linear bearing 8027, and the two fourth linear bearings 8027 are mounted on the guide shaft mounting frame 8014. A slide plate 8021 is fixed on 8023, and N slides 8022 are arranged on the slide plate 8021 at intervals. Each fifth bearing 8020 can slide in the corresponding slide 8022. When the seventh cylinder 8024 is driven to move the slide plate seat plate 8023 downward, each fifth bearing 8020 slides along the corresponding slide 8022, driving the corresponding second air claw seat plate 8016 to move along the third guide shaft 8015, thereby increasing the distance between two adjacent second air claw seat plates 8016; conversely, when the seventh cylinder 8024 is driven to move the slide plate seat plate 8023 upward, the distance between two adjacent second air claw seat plates 8016 can be reduced.

[0029] In a specific use process, the plastic needle linear material transfer mechanism 6 can clamp N plastic needles A. When the first air cylinder 504 is driven to operate, the plastic needle linear material transfer mechanism 6 can move forward to drag the plastic needle A to a preset position, and the upper end of the plastic needle A is clamped by the second claw finger 70923 in the plastic needle rotating mechanism 709. At this time, the plastic needle A is clamped by the plastic needle linear material transfer mechanism 6 and the plastic needle rotating mechanism 709. The direction of the airway tube of each plastic needle A is detected by the plastic needle direction detection mechanism 708. After that, the plastic needle linear material transfer mechanism 6 can move forward to drag the plastic needle A to a preset position. The transfer mechanism 6 releases the plastic needle A and returns to its position for the next round of material picking operation. The plastic needle facing the correct direction is clamped by the plastic needle material receiving and steering mechanism 8. Then the plastic needle rotating mechanism 709 rotates the plastic needle A facing the rear of the airway tube so that the airway tube faces the front. At this time, the plastic needle A is in an upright state. Then the remaining plastic needles A at the plastic needle rotating mechanism 709 are clamped by the plastic needle material receiving and steering mechanism 8. The plastic needle material receiving and steering mechanism 8 flips 90° and places N plastic needles A in a horizontal state on the next workstation, such as a chain conveyor mechanism, to complete the plastic needle loading operation.

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

[0031] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A plastic needle feeding mechanism, characterized in that: The invention comprises a first support frame (5), wherein the first support frame (5) comprises a first bottom plate (501), two first vertical plates (502) are arranged opposite to each other on the first bottom plate (501), the top ends of the two first vertical plates (502) are connected to the first top plate (503), a first cylinder (504) and a first slide rail (505) are arranged on the upper surface of the first bottom plate (501), a first slide block (506) used in conjunction with the first slide rail (505) is assembled on the plastic needle linear material taking transfer mechanism (6), and the telescopic rod of the first cylinder (504) is connected to the plastic needle linear material taking transfer mechanism (6) via a connector. The plastic needle linear material transfer mechanism (6) is connected to each other, and can clamp N plastic needles (A) in an upright state, where N is a positive integer, and the airway tube of each plastic needle faces forward or backward. When the first cylinder (504) is driven to operate, 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 limit mechanism (507) for limiting the moving stroke of the plastic needle linear material transfer mechanism (6) is also provided on the upper surface of the first bottom plate (501); a first cylinder seat plate (5013) is provided on the first top plate (503). The second cylinder (508) is provided with a second slide rail (509) on the first top plate (503). The second slider (5010) used in conjunction 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 direction of the airway tube of each plastic needle (A), obtain each plastic needle (A) at the plastic needle linear material transfer mechanism (6), and rotate the airway tube toward the rear plastic needle (A) so that the airway tube faces forward. When the plastic needle (A) is driven, the airway tube is rotated toward the rear plastic needle (A). When the second cylinder (508) is actuated, the plastic needle linear detection rotating mechanism (7) can move in the front-rear direction, and a limiting mechanism is also provided on the first top plate (503) for limiting the moving stroke of the plastic needle linear detection rotating mechanism (7); a plastic needle material receiving and steering mechanism (8) is also provided on the first bottom plate (501) for obtaining the plastic needle (A) facing forward with the airway tube 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 airway tube faces downward, and the plastic needle (A) in a horizontal state is placed on the next workstation to complete the loading 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 bottom plate (601), the lower surface of the second bottom plate (601) is equipped with the first slider (506), two second vertical plates (602) are oppositely arranged on the second bottom plate (601), the top ends of the two second vertical plates (602) are connected to the first mounting plate (603), a first air claw seat plate (604) is fixedly arranged on the first mounting plate (603), N first air claws (605) are arranged on the first air claw seat plate (604) along the left and right directions, each first air claw (605) is provided with two first claw fingers (606) used in conjunction with each other, when the first air claw (605) is driven to move, the two first claw fingers (606) can clamp the plastic needle (A) or release the plastic needle (A).

3. The plastic needle feeding mechanism according to claim 2, characterized in that: 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 the second slide block (5010), the upper surface of the first slide plate (701) is provided with a third cylinder (702), the telescopic rod of the third cylinder (702) passes through a through hole provided on the first slide plate (701) and is connected to the 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 divided into two groups and symmetrically provided on the left and right sides of the third cylinder (702), and each first guide shaft (705) cooperates with the corresponding first linear bearing (706) to make The first linear bearing (706) is passed through the first slide plate (701), and a first lifting limit plate (707) is also provided on the upper surface of the first slide plate (701) for limiting the rising stroke of the first guide shaft (705); a plastic needle direction detection mechanism (708) and a plastic needle rotation mechanism (709) are provided on the lower surface of the first lifting plate (704) in sequence from front to back, the plastic needle direction detection mechanism (708) is used to detect the direction of the airway tube of each plastic needle (A), and 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 airway tube toward the rear plastic needle (A) so that the airway tube faces forward.

4. The plastic needle feeding mechanism according to claim 3, characterized in that: 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), and two third vertical plates (7082) are oppositely arranged on the lower surface of the second mounting plate (7081), and the lower ends of the two third vertical plates (7082) are connected to the third mounting plate (7083), and a fourth cylinder (7084) is mounted on the lower surface of the third mounting plate (7083), and the telescopic rod of the fourth cylinder (7084) is connected to the probe seat plate (7086) via a second connecting head (7085), and two second guide shafts (7088) are also connected to the probe seat plate (7086), and the two are respectively arranged on the left and right sides of the fourth cylinder (7084), each 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 provided on the probe seat plate (7086) at intervals along the left and right directions. The probe seat plate (7086) is also equipped with N photoelectric sensors (70811) via N sensor seat 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 between the photoelectric sensor (70811) and the probe (7089), the direction 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 rotating mechanism (709) is as follows: it includes a fourth mounting plate (7091) mounted on the lower surface of the first lifting plate (704), the lower surface of the fourth mounting plate (7091) is provided with two side support plates (7092) opposite to each other, the lower ends of the two side support plates (7092) are connected to the fifth mounting plate (7093), the fourth mounting plate (7091) is provided with 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) is provided with N mounting holes corresponding to the left-right direction, each mounting hole is rotatably connected to a rotating shaft (7096) via a second bearing (709 5) Rotatingly connecting the rotating shaft (7096), the lower end of each rotating shaft (7096) is connected to a second air gripper (7099) via a connecting ring (7098), and each second air gripper (7099) is provided with two second claw fingers (70923) used in conjunction with each other. When the second air gripper (7099) is driven to move, the two second claw fingers (70923) used in conjunction with each other can clamp or release the plastic needle (A); each rotating shaft (7096) is fixedly sleeved with a gear (7097), and the gear (7097) is located between the corresponding first bearing (7094) and the second bearing (7095), and is connected to a rack (7099) used in conjunction with all the gears (7097). The third slide rail (70914) is connected to the third slide rail (70915), and the third slide rail (70914) slides left and right along the third slide block (70913) fixed on the slide block fixing plate (70910). The slide block fixing plate (70910) is fixed on the fourth mounting plate (7091). A second cylinder seat plate (70911) is provided on the slide block 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 connecting head (70916). The connecting rod (70917) and the cylinder The 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 operate, the rack (70915) can move in the left and right directions, driving each rotating shaft (7096) to rotate, so as to rotate the plastic needle (A) facing the rear of the airway tube so that the airway tube faces the front; a limiting mechanism (70920) is also provided on the side support plate (7092) for limiting the moving stroke of the rack (70915), and a first protective cover (70921) and a second protective cover (70922) can be respectively provided at the front and rear end faces of the fourth mounting plate (7091).

6. The plastic needle feeding mechanism according to claim 5, characterized in that: The structure of the plastic needle material receiving and steering mechanism (8) is as follows: it includes a third bottom plate (801) fixed on the first bottom plate (501), two first bearing seat plates (802) are arranged opposite to each other on the upper surface of the third bottom plate (801), each first bearing seat plate (802) is connected to the flip shaft (804) via a third bearing (803), and both ends of the flip shaft (804) extend out of the corresponding first bearing seat plates (802), one end of the flip shaft (804) is fixedly connected to a first flip limit plate (805), and a first buffer seat plate is arranged on the first bearing seat plate (802) corresponding to the first flip limit plate (805). (806), two buffers are arranged at intervals on the first buffer seat plate (806) for use with the first flip limit plate (805), and are respectively used to cooperate with the first flip limit plate (805) when the flip shaft (804) rotates forward and reversely, and the other end of the flip shaft (804) is fixedly connected to a flip connecting frame (807), and a joint bearing pin (809) is arranged on the flip connecting frame (807), and the joint bearing pin (809) is connected to the adapter (808) via a bearing, and the adapter (808) is connected to the telescopic rod of the sixth cylinder (8010), and the cylinder body of the sixth cylinder (8010) The two ends are connected to the second bearing seat plate (8012) through the fourth bearing (8011) respectively, and the two second bearing seat plates (8012) are arranged on the fourth bottom plate (8013) opposite to each other. The fourth bottom plate (8013) is fixed on the first bottom 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 frame (8014) is fixedly connected to the flip shaft (804), and two third guide shafts (8015) are arranged on the guide shaft mounting frame (8014) at intervals along the up-down direction. Each third guide shaft (8015) is arranged along the left-right direction. N second air gripper base plates (8016) are provided in the left and right directions, and each second air gripper base plate (8016) is provided with two third linear bearings (8019) used in conjunction with the corresponding third guide shaft (8015), so that the second air gripper base plate (8016) can move left and right along the third guide shaft (8015), and each second air gripper base plate (8016) is provided with a third air gripper (8017), and the third air gripper (8017) is provided with two third claw fingers (8018) used in conjunction with each other, and when the third air gripper (8017) is driven to move, the plastic needle (A) can be clamped or released through the two third claw fingers (8018);A fifth bearing (8020) is connected to the front surface of each second air claw seat plate (8016), a seventh air cylinder (8024) is mounted on the guide shaft mounting frame (8014), the telescopic rod of the seventh air 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), the two are arranged on the left and right sides of the seventh air 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 frame (8014), and the slide plate (8023) is fixed with a fourth linear bearing (8027). 21), the slide plate (8021) is provided with N slideways (8022) at intervals, and each fifth bearing (8020) can slide in the corresponding slideway (8022). When the seventh cylinder (8024) is driven to move the slide plate seat plate (8023) downward, each fifth bearing (8020) slides along the corresponding slideway (8022), driving the corresponding second air claw seat plate (8016) to move along the third guide shaft (8015), thereby increasing the distance between two adjacent second air claw seat plates (8016); conversely, when the seventh cylinder (8024) is driven to move the slide plate seat plate (8023) upward, the distance between two adjacent second air claw seat plates (8016) can be reduced. ;

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