Needle tube blanking device

Abstract

The utility model belongs to the technical field of blanking devices, and particularly relates to a needle tube blanking device. The blanking device comprises an inclined bottom plate which is arranged obliquely, a feeding sliding way is installed at the upper end of the inclined bottom plate, a blanking rotary disc is rotationally connected to the front side of the inclined bottom plate, a plurality of notches are formed in the inverted-circular-truncated-cone-shaped inclined face of the blanking rotary disc at intervals in the annular direction, the notches are in a hook shape, and the center of the blanking rotary disc is rotationally connected with the front side of the inclined bottom plate through a rotary disc shaft. The end of the rotating disc shaft penetrates through the inclined bottom plate and is fixedly sleeved with a transmission chain wheel, a servo motor is installed on the front side of the inclined bottom plate, an output shaft of the servo motor penetrates through the inclined bottom plate and is fixedly sleeved with a transmission chain wheel, the two transmission chain wheels are connected through an annular chain, and a material stopping block is installed on the front side of the inclined bottom plate. The stop block is located on the side, away from the servo motor, of the discharging rotary disc, a semicircular opening is formed in the side edge of the stop block, and the side edge of the discharging rotary disc is located in the semicircular opening. According to the blanking device, the blanking speed of the needle tubes can be increased, and the phenomenon that the needle tubes are emptied in the blanking process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of droppers, in particular to a needle tube dropper. Background Art

[0002] Prefilled needles are filled with liquid medicine and then placed directly in the syringe. When used, they are taken out and injected directly. Both the syringe and the prefilled needle need to be sterile for a long time, so they need to be packaged (pillow packaging) before transportation. Generally, the syringe is manually placed into the packaging equipment, and the packaging equipment packages the syringe. However, with the increase in packaging speed, the manual feeding method can no longer meet the packaging speed of the packaging equipment.

[0003] The prior art dropper has several slots on a cylinder, the diameter and depth of the slots are comparable to the size of the needle tube, the cylinder axis is parallel to the trough of the packaging machine, a hopper is provided above the cylinder, the needle tube in the hopper is parallel to the slot on the cylinder, the needle tube falls into the slot during the operation, the cylinder rotates, and the needle tube in the slot falls into the trough of the packaging machine, but this dropper has the problem of slow drop speed and high probability of empty drop. Because the needle tube is not a regular cylinder, the arrangement of the needle tube in the hopper is irregular, which will affect the accuracy of the needle tube falling from the hopper into the slot, or it cannot be guaranteed that the needle tube will fall out of the hopper every time.

[0004] Therefore, it is necessary to design a dropper for needle tubes, so as to increase the drop speed of the needle tubes, reduce the probability of falling, and reduce labor costs. Utility Model Content

[0005] The utility model provides a needle tube material dropper, which solves the problems of slow dropping speed and high probability of empty drop in the existing needle tube material dropper.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The needle tube feeder comprises an inclined bottom plate, the upper end of which is provided with a feeding slideway, the front side of which is rotatably connected with a feeding turntable, the feeding turntable is in an inverted truncated cone shape, the inverted truncated cone-shaped inclined surface of which is provided with a plurality of notches at intervals along the annular direction, the notches are hook-shaped, the inverted truncated cone-shaped inclined surface of which is parallel to the feeding plane of the packaging machine, the center of which is rotatably connected with the front side of the inclined bottom plate through a turntable shaft, the end of which passes through the inclined The inclined bottom plate is fixed with a transmission sprocket, and a servo motor is installed on the front side of the inclined bottom plate. The output shaft of the servo motor passes through the inclined bottom plate and the fixed sleeve is provided with a transmission sprocket. The two transmission sprockets are connected by an annular chain. The servo motor drives the unloading turntable to rotate, and a stop block is installed on the front side of the inclined bottom plate. The stop block is located on the side of the unloading turntable away from the servo motor. A semicircular opening is opened on the side of the stop block, and the side of the unloading turntable is located in the semicircular opening.

[0008] Through the above technical solution, the feeding slide can automatically slide the needle tube to be packaged into the notch of the unloading turntable. The unloading turntable drives the needle tube to rotate through the notch during rotation. The semicircular opening of the blocking block can limit the rotation of the needle tube in the notch. When the needle tube rotates to the lower end of the semicircular opening of the blocking block, that is, the notch drives the needle tube to rotate to be parallel to the feeding plane of the packaging machine, the needle tube automatically falls to the feeding plane of the packaging machine, which not only increases the speed of the needle tube dropping, but also avoids the phenomenon of the needle tube falling empty. The servo motor can drive the unloading turntable to rotate automatically through the transmission sprocket, so that the unloading turntable changes the direction of the needle tube during rotation, so that the needle tube keeps itself parallel to the feeding plane of the packaging machine during rotation.

[0009] Optionally, two movable side panels are installed at intervals on the rear side of the inclined bottom plate, and the movable side panels are provided with inclined surfaces, and the inclined surfaces of the movable side panels are in contact with the rear side of the inclined bottom plate and are detachably connected by bolts, and fixed plates are provided on the outer sides of the two movable side panels, and the upper ends of the two movable side panels are connected and fixed to the upper ends of the two fixed plates by adjusting a rotating shaft, and the lower end of the fixed plate is fixedly connected to the conveying equipment of the packaging machine.

[0010] Through the above technical scheme, the connection between the fixed plate, the movable side plate and the inclined bottom plate makes the inclined bottom plate have a certain initial angle, which is convenient for the subsequent installation of the unloading turntable and makes the inverted cone-shaped inclined surface of the unloading turntable parallel to the feeding plane of the packaging machine.

[0011] Optionally, a bracket is fixedly connected to the front side of the inclined bottom plate, and the bracket is fixedly connected to the side of the feed chute. The upper end of the feed chute remains horizontal, and the lower end of the feed chute is inclined. The inclination of the feed chute is the same as the inclination of the inclined bottom plate, and the lower end of the feed chute corresponds to the side of the unloading turntable.

[0012] Through the above technical solution, the bracket can maintain a firm connection between the feed chute and the inclined bottom plate, and can adjust the inclination of the feed chute, so as to facilitate the adjustment of the inclination angle of the needle tube after it slides down the feed chute.

[0013] Optionally, the feed slide includes two feed slides that are arranged in parallel and at intervals, the two feed slides are symmetrically arranged, the feed slides are L-shaped, and the distance between the two feed slides is greater than the diameter of the needle tube.

[0014] Through the above technical solution, the design of the feeding slide plate can ensure that the needle tube can slide freely by its own gravity, and can also ensure the stability of the needle tube during the sliding process, thereby preventing the needle tube from tipping over during the sliding process.

[0015] Optionally, an L-shaped limit plate is installed on the top of the lower end of the feed slide, and the L-shaped limit plate corresponds to the groove.

[0016] Through the above technical solution, the L-shaped limiting plate is used to limit the needle tube falling from the feed chute, so that the needle tube can smoothly enter the groove after falling from the feed chute.

[0017] Optionally, a protective cover is provided on the front side of the inclined bottom plate, a transmission shield is installed on the front side of the inclined bottom plate, the transmission shield is installed on the outside of the output shaft of the servo motor, and the transmission shield is located inside the protective cover.

[0018] Through the above technical solution, the protective cover can be kept clean during the needle tube blanking process to avoid interference, and the transmission shield can protect the output shaft of the servo motor.

[0019] After adopting the above technical solution, the beneficial effects of the utility model are:

[0020] The needle tube dropper in the utility model allows the needle tube to slide freely into the slot in the unloading turntable through the feeding slideway. The unloading turntable drives the needle tube to rotate by rotation, so that the needle tube changes its tilt direction during the rotation. When the needle tube rotates to be parallel to the feeding plane of the packaging machine, it disengages from the slot and automatically falls onto the feeding plane of the packaging machine, realizing automatic feeding and improving the feeding speed. The semicircular opening of the blocking block can limit the needle tube when the slot drives the needle tube to rotate, so as to avoid the needle tube falling empty. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 is a three-dimensional diagram of a needle tube feeder in an embodiment;

[0023] Figure 2 It is a three-dimensional diagram of the needle tube feeder in the embodiment (without the protective cover);

[0024] Figure 3 It is a three-dimensional diagram of the needle tube feeder in the embodiment (excluding the protective cover and the transmission cover);

[0025] Figure 4 is a three-dimensional diagram of the inclined bottom plate in the embodiment;

[0026] Figure 5 Schematic diagram of the cooperation between the unloading turntable and the semicircular opening of the blocking block in the embodiment;

[0027] Figure 6 It is a schematic diagram of the cooperation between the unloading turntable, the needle tube and the blocking block in the embodiment.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. inclined bottom plate; 2. feed slide; 3. unloading turntable; 4. notch; 5. stop block; 6. semicircular opening; 7. movable side plate; 8. fixed plate; 9. adjustment shaft; 10. bracket; 11. feed slide plate; 12. L-shaped limit plate; 13. turntable shaft; 14. transmission sprocket; 15. servo motor; 16. ring chain; 17. protective cover; 18. transmission cover; 19. needle tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The embodiment of the present application discloses a needle tube feeder.

[0031] Example

[0032] according to Figures 1 to 6As shown, the needle tube feeder includes an inclined bottom plate 1, a feed slide 2, a feed turntable 3, a stop block 5 and a servo motor 15.

[0033] The inclined bottom plate 1 is arranged tilted, and the front side of the inclined bottom plate 1 is rotatably connected to the unloading turntable 3 through the turntable shaft 13. The end of the turntable shaft 13 passes through the inclined bottom plate 1 and is fixedly sleeved with a transmission sprocket 14. A servo motor 15 is installed on the front side of the inclined bottom plate 1. The output shaft of the servo motor 15 passes through the inclined bottom plate 1 and is fixedly sleeved with a transmission sprocket 14. The two transmission sprockets 14 are connected by a ring chain 16. The servo motor 15 drives the unloading turntable 3 to rotate.

[0034] The unloading turntable 3 is in the shape of an inverted cone, and a plurality of slots 4 are circumferentially spaced along the upper edge of the inverted cone-shaped inclined surface of the unloading turntable 3. The slots 4 are hook-shaped, and the slots 4 are inclined to the inverted cone-shaped inclined surface (the slots 4 are slots opened along the inverted cone-shaped inclined surface). The unloading turntable 3 is in the shape of an inverted cone and the slots 4 are hook-shaped, so that when the unloading turntable 3 rotates on the front side of the inclined bottom plate 1, the needle tube 19 rotates in the slot 4 along with the unloading turntable 3. The needle tube 19 can rotate on the side of the unloading turntable 3 until it is parallel to the feeding plane of the packaging machine. The needle tube 19 can automatically fall from the slot 4 in a horizontal state onto the feeding plane of the packaging machine, thereby increasing the dropping speed of the needle tube 19.

[0035] The unloading turntable 3 is in the shape of an inverted truncated cone, and the purpose is to rotate the needle tube 19, which is naturally vertical or slightly angled, 180 degrees through the unloading turntable 3, so that the needle tube 19 can remain parallel to the feeding plane of the packaging machine and then fall. The advantage of the inverted truncated cone-shaped inclined surface of the unloading turntable 3 over the vertical surface is that the vertical surface cannot change the direction of the needle tube 19, and it can only be horizontal if it falls horizontally at the beginning, while the inclined surface of the inverted truncated cone can change the direction of the needle tube 19, so that the needle tube 19 can remain parallel to the feeding plane of the packaging machine when it rotates to the drop point.

[0036] A stopper block 5 is installed on the front side of the inclined bottom plate 1. The stopper block 5 is located on the side of the unloading turntable 3 away from the servo motor 15. A semicircular opening 6 is opened on the side of the stopper block 5. The side of the unloading turntable 3 is located in the semicircular opening 6. The design of the semicircular opening 6 of the stopper block 5 enables the needle tube 19 located in the slot 4 to be limited, so that the needle tube 19 will not fall when it is not rotated to the unloading position, thereby improving the stability of the needle tube 19 rotating in the slot 4.

[0037] Two movable side panels 7 arranged in parallel and at intervals are installed at the rear side of the inclined bottom plate 1. The movable side panels 7 are provided with inclined surfaces. The inclined surfaces of the movable side panels 7 are in contact with the rear side of the inclined bottom plate 1 and are detachably connected by bolts. Fixed plates 8 are provided on the outer sides of the two movable side panels 7. The upper ends of the two movable side panels 7 are connected and fixed to the upper ends of the two fixed plates 8 by adjusting the rotating shaft 9. The lower end of the fixed plate 8 is fixedly connected to the conveying equipment of the packaging machine. The connection between the fixed plate 8, the movable side panel 7 and the inclined bottom plate 1 makes the inclined bottom plate 1 have a certain initial angle.

[0038] A feed chute 2 is installed at the upper end of the inclined bottom plate 1, and a bracket 10 is fixedly connected to the front side of the inclined bottom plate 1. The bracket 10 is fixedly connected to the side of the feed chute 2. The upper end of the feed chute 2 remains horizontal, and the lower end of the feed chute 2 is inclined. The inclination of the feed chute 2 is the same as that of the inclined bottom plate 1. The feed chute 2 includes two parallel and spaced feed slides 11, the two feed slides 11 are symmetrically arranged, and the feed slides 11 are L-shaped. The distance between the two feed slides 11 is greater than the diameter of the needle tube 19, which is conducive to the needle tube 19 sliding down from top to bottom. The lower end of the feed chute 2 corresponds to the side of the unloading turntable 3, and an L-shaped limit plate 12 is installed on the top of the lower end of the feed chute 2. The L-shaped limit plate 12 corresponds to the slot 4. The L-shaped limit plate 12 is used to limit the needle tube 19 falling from the feed chute 2, so that the needle tube 19 can smoothly enter the slot 4 after falling from the feed chute 2.

[0039] A protective cover 17 is provided on the front side of the inclined bottom plate 1. A transmission protective cover 18 is installed on the front side of the inclined bottom plate 1. The transmission protective cover 18 is installed outside the output shaft of the servo motor 15 to protect the output shaft of the servo motor 15. The transmission protective cover 18 is located inside the protective cover 17.

[0040] Working principle:

[0041] First, install the lower end of the fixed plate 8 on the feeding plane of the packaging machine so that the inclined bottom plate 1 maintains a certain inclination angle with the feeding plane of the packaging machine, and the lower end of the inverted truncated table slope of the unloading turntable 3 remains parallel to the feeding plane of the packaging machine.

[0042] Secondly, put the needle tubes 19 one by one into the feed chute 2, start the servo motor 15, and the servo motor 15 drives the unloading turntable 3 to rotate, so that the rotation speed of the unloading turntable 3 matches the speed at which the needle tube 19 slides down. When the needle tube 19 slides down to the L-shaped limit plate 12, the needle tube 19 no longer slides down. Wait until the unloading turntable 3 drives the slot 4 to rotate to the L-shaped limit plate 12, and the needle tube 19 enters the slot 4 and rotates clockwise along the slot 4 toward the direction of the stop block 5. After the needle tube 19 enters the slot 4, the needle tube 19 rotates between the slot 4 and the stop block 5 until the needle tube 19 rotates to be parallel to the feeding plane of the packaging machine (that is, the lower end of the semicircular opening 6 of the stop block 5).

[0043] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Needle tube feeder, characterized by: It includes an inclined bottom plate arranged obliquely, a feeding slide is installed on the upper end of the inclined bottom plate, a feeding turntable is rotatably connected to the front side of the inclined bottom plate, the feeding turntable is in an inverted cone shape, a plurality of notches are arranged at intervals along the annular direction on the inverted cone-shaped inclined surface of the feeding turntable, the notches are hook-shaped, the inverted cone-shaped inclined surface of the feeding turntable is parallel to the feeding plane of the packaging machine, the center of the feeding turntable is rotatably connected to the front side of the inclined bottom plate through a turntable shaft, and the end of the turntable shaft passes through the inclined bottom plate A transmission sprocket is fixedly provided on the fixed sleeve, a servo motor is installed on the front side of the inclined bottom plate, the output shaft of the servo motor passes through the inclined bottom plate and a transmission sprocket is fixedly provided on the fixed sleeve, the two transmission sprockets are connected by an annular chain, the servo motor drives the unloading turntable to rotate, a stop block is installed on the front side of the inclined bottom plate, the stop block is located on the side of the unloading turntable away from the servo motor, a semicircular opening is opened on the side of the stop block, and the side of the unloading turntable is located in the semicircular opening.

2. The needle tube feeder according to claim 1, characterized in that: Two movable side plates are installed at intervals on the rear side of the inclined bottom plate, and the movable side plates are provided with inclined surfaces. The inclined surfaces of the movable side plates are in contact with the rear side of the inclined bottom plate and are detachably connected by bolts. Fixed plates are provided on the outer sides of the two movable side plates, and the upper ends of the two movable side plates are connected and fixed to the upper ends of the two fixed plates by adjusting the rotating shaft, and the lower end of the fixed plate is fixedly connected to the conveying equipment of the packaging machine.

3. The needle tube feeder according to claim 1, characterized in that: A bracket is fixedly connected to the front side of the inclined bottom plate, and the bracket is fixedly connected to the side of the feed chute. The upper end of the feed chute remains horizontal, and the lower end of the feed chute is inclined. The inclination of the feed chute is the same as the inclination of the inclined bottom plate, and the lower end of the feed chute corresponds to the side of the unloading turntable.

4. The needle tube dropper according to claim 1, characterized in that: The feeding slideway comprises two feeding slide plates which are arranged in parallel and at intervals, the two feeding slide plates are arranged symmetrically, the feeding slide plates are L-shaped, and the distance between the two feeding slide plates is greater than the diameter of the needle tube.

5. The needle tube dropper according to claim 4, characterized in that: An L-shaped limiting plate is installed on the top of the lower end of the feeding slideway, and the L-shaped limiting plate corresponds to the notch.

6. The needle tube feeder according to claim 1, characterized in that: A protective cover is arranged on the front side of the inclined bottom plate, a transmission shield is installed on the front side of the inclined bottom plate, the transmission shield is installed on the outside of the output shaft of the servo motor, and the transmission shield is located inside the protective cover.

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