Feeding mechanism for needle loading of needle cylinder
By using a clamp and a block structure in the feeding mechanism for needle loading and loading of the syringe, the problems of needle tilt and lag are solved, efficient and smooth needle supply is achieved, and manual operation costs are reduced.
Patent Information
- Application Number
- CN202422056697.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing automatic feeding mechanism is prone to inclination and lag when replenishing the needle, resulting in insufficiency of the needle supply.
The magazine and block structure are adopted to control the needle space through the blocks in the magazine, ensure the consistency of the needle direction, and achieve smooth supply through the minute needle wheel and drive assembly.
It improves the needle replenishment speed and needle supply fluency, reduces lag, and reduces manual operation costs and defective rates.
Smart Images
Figure CN223265111U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of syringe manufacturing, and particularly relates to a feeding mechanism for loading needles into a syringe. Background Art
[0002] In the syringe production process, the needle needs to be installed on the syringe after the syringe is prepared. In order to improve production efficiency, automated integrated equipment is now used to transport the syringe and install the needle. However, the automatic feeding mechanism currently used is prone to needle tilt when a large number of needles are added to the feeding mechanism, resulting in jamming during needle feeding and low needle feeding efficiency. In order to improve the smoothness of needle feeding and ensure the speed of needle installation, a feeding mechanism for syringe needle installation is proposed. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art.
[0004] To this end, the utility model proposes a syringe needle loading mechanism, which has the advantages of reducing jamming and improving the smoothness of needle feeding.
[0005] According to the embodiment of the utility model, the loading mechanism for loading needles into a syringe comprises: a base and a magazine; a needle storage bin and a minute hand wheel are mounted on the base, one end of the needle storage bin is in contact with the outer surface of the minute hand wheel, and a first opening is formed at one end of the needle storage bin; the magazine is arranged in the needle storage bin, a chamber for storing needles is formed in the magazine, a second opening is formed at the end of the magazine facing the first opening, the second opening is used for placing or discharging the needle, a liftable pressure block is provided in the chamber, the pressure block is used for pushing the needle toward the second opening or forming a certain space at the end of the chamber having the second opening, the second opening is used for supplying the needle to the needle storage bin; the first opening is used for distributing the needle to the minute hand wheel, and the minute hand wheel can take the needles away from the needle storage bin one by one.
[0006] According to one embodiment of the present invention, the minute hand wheel is cylindrical and rotates about its central axis. A groove is formed on the circumferential surface of the minute hand wheel, and the depth of the groove is not less than the diameter of one needle head and not greater than the diameter of two needle heads.
[0007] According to one embodiment of the present invention, the length of the minute hand wheel is smaller than the length of the needle.
[0008] According to one embodiment of the present invention, the minute hand wheel is connected to a driving assembly, and the driving assembly can drive the minute hand wheel to rotate clockwise or counterclockwise around its central axis.
[0009] According to one embodiment of the present invention, a shield is provided at one end of the magazine facing the first opening, and the shield is used to block the second opening before the magazine provides needles to the needle storage bin.
[0010] According to one embodiment of the present invention, a boss is formed at one end of the shield, a convex block is formed on the side of the boss facing the magazine, a concave hole is formed on the side wall of the magazine, and the size of the convex block matches the size of the concave hole.
[0011] According to one embodiment of the present invention, the needle storage bin includes two side panels, a front baffle and a rear baffle, the two side panels are arranged opposite to each other, the front baffle is used to connect one side of the two side panels, and the rear baffle is used to connect the other side of the two side panels, and a slot is provided on the upper surface of the rear baffle, and one end of the shield is slidably connected to the inner surface of the slot.
[0012] According to an embodiment of the present invention, two inclined surfaces are formed on opposite surfaces of one end of the two side panels, and the two inclined surfaces are gradually converging. The inclined surfaces are used to guide the needle.
[0013] According to one embodiment of the present invention, the lower surface of the notch and the upper end of the inclined surface are located at the same height.
[0014] According to one embodiment of the present invention, it includes a needle loading spoon, one end of which is formed with a receiving groove, the receiving groove is used to receive the needle, the receiving groove is semicircular, and the central axis of the receiving groove is parallel to the central axis of the needle in the receiving groove.
[0015] The beneficial effect of the present invention is that the present invention adopts the method of installing a magazine in the needle storage bin, which improves the speed of replenishing needles, and provides a pressure block in the magazine, which controls the space for replenishing needles through the pressure block, reduces the inclination angle of the needles, avoids the disorder of the needle direction, and improves the uniformity of the needle direction. When the magazine supplies needles to the needle storage bin, the pressure block presses down the needles, making the needles move downward more smoothly.
[0016] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention.
[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments with reference to the accompanying drawings, in which:
[0019] Figure 1It is a side view schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of a partial split side view of the overall structure of the utility model;
[0021] Figure 3 This is an enlarged schematic diagram of area A of the present utility model;
[0022] Figure 4 This is a partially disassembled front view of the overall structure of the utility model;
[0023] Figure 5 This is a partial disassembled rear view of the overall structure of the utility model;
[0024] Reference numerals:
[0025] 41. Base; 42. Needle storage compartment; 421. Side panel; 422. Front baffle; 423. Rear baffle; 4231. Notch; 43. Magazine; 431. Shield; 4311. Boss; 4312. Bump; 4313. Concave hole; 432. Press block; 4321. Column; 4322. Spring; 44. Minute hand wheel; 441. Drive assembly; 442. Slot body; 45. Needle loading spoon; 451. Container. DETAILED DESCRIPTION
[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0029] The syringe needle loading mechanism of the embodiment of the present utility model will be described in detail below with reference to the accompanying drawings.
[0030] like Figure 1-Figure 5 As shown, the loading mechanism for loading needles into a syringe according to an embodiment of the present utility model includes: a base 41 and a clip 43; a needle storage bin 42 and a minute hand wheel 44 are mounted on the base 41, one end of the needle storage bin 42 is in contact with the outer surface of the minute hand wheel 44, and a first opening is formed at one end of the needle storage bin 42; the clip 43 is arranged in the needle storage bin 42, and a chamber for storing needles is formed in the clip 43, and a second opening is formed at the end of the clip 43 facing the first opening, and the second opening is used for placing or discharging the needle, and a liftable pressure block 432 is provided in the chamber, and the pressure block 432 is used for pushing the needle toward the second opening or forming a certain space at the end of the chamber having the second opening, and the second opening is used for supplying the needle to the needle storage bin 42; the first opening is used for distributing the needle to the minute hand wheel 44, and the minute hand wheel 44 can take the needles away from the needle storage bin 42 one by one.
[0031] In this embodiment, when the clip 43 is replenished with needles, the pressing block 432 is pulled down a certain distance so that there is a certain distance between the pressing block 432 and the second opening. At this time, some needles are loaded. Since the distance between the pressing block 432 and the second opening is small, the needles are not easy to turn when the needles are loaded. Then the pressing block 432 is pulled down a certain distance so that there is a certain distance between the second opening and the needles in the chamber. At this time, some needles are loaded until the clip 43 is full. Compared with directly placing the needles in the needle storage bin 42, the needle storage bin 42 is easy to operate. The size of the bin 42 is relatively large, and the needle is very easy to tilt or flip when placing the needle, resulting in a disordered direction of the needle. This ensures the consistency of the needle direction, reduces the jamming phenomenon when the needle is arranged to the minute hand wheel 44, and improves the smoothness of the needle supply. There are multiple clips 43, and multiple clips 43 can be used as spares. When the needles in the clips 43 in the needle storage bin 42 are used up, they can be replaced in time, saving the time for replenishing. When the clip 43 supplies the needle to the needle storage bin 42, the needle is pressed down by the pressure block 432, so that the needle can go down more smoothly.
[0032] The minute hand wheel 44 is cylindrical and rotates about its central axis. A groove 442 is formed on the circumferential surface of the minute hand wheel 44 . The depth of the groove 442 is not less than the diameter of one needle and not more than the diameter of two needles.
[0033] In this embodiment, the groove body 442 passes through both ends of the minute hand wheel 44 along the central axis direction of the minute hand wheel 44. The depth of the groove body 442 is slightly larger than the diameter of a needle. During the rotation of the minute hand wheel 44, the groove body 442 enters the first opening. At this time, one of the needles in the first opening is embedded in the groove body 442. When the groove body 442 moves out of the first opening, the needle located in the groove body 442 is brought out of the first opening for subsequent needle removal.
[0034] The length of the minute hand wheel 44 is smaller than the length of the needle, that is, one end of the needle is embedded in the groove body 442, and the other end protrudes from the minute hand wheel 44. After the needle is brought out of the first opening by the groove body 442, it is convenient for the needle removal assembly to clamp the other end of the needle.
[0035] The minute hand wheel 44 is connected to a driving assembly 441 , which can drive the minute hand wheel 44 to rotate clockwise or counterclockwise around its central axis.
[0036] In this embodiment, the driving component 441 is a servo motor with torque detection. The upper limit value of the torque detection is set before use. The driving component 441 drives the minute hand wheel 44 to rotate. If the driving component 441 detects that the torque reaches the upper limit value, the driving component 441 drives the minute hand wheel 44 to rotate so that the stuck needle can re-enter the first opening for reset. At this time, the driving component 441 drives the rotation again to bring the needle out, reducing damage to the needle while avoiding manual operation, reducing defective products and reducing labor costs.
[0037] A shield 431 is provided at one end of the clip 43 facing the first opening. Before the clip 43 provides the needle to the needle storage bin 42 , the shield 431 is used to block the second opening to facilitate the placement of the clip 43 into the needle storage bin 42 .
[0038] A boss 4311 is formed at one end of the shield 431 , a bump 4312 is formed on the side of the boss 4311 facing the clip 43 , a recess 4313 is formed on the side wall of the clip 43 , and the size of the bump 4312 matches that of the recess 4313 .
[0039] The needle storage bin 42 includes two side panels 421, a front baffle 422 and a rear baffle 423. The two side panels 421 are arranged opposite to each other. The front baffle 422 is used to connect one side of the two side panels 421, and the rear baffle 423 is used to connect the other side of the two side panels 421. A slot 4231 is provided on the upper surface of the rear baffle 423, and one end of the shield 431 is slidably connected to the inner surface of the slot 4231.
[0040] In this embodiment, the depth of the notch 4231 is consistent with the path size of the shield 431, and the protrusion 4312 can be inserted into the recessed hole 4313 to fix the shield 431 to the magazine 43. When the magazine 43 is lowered, the boss 4311 protrudes from the rear baffle 423, and the notch 4231 avoids interference with the boss 4311. After the magazine 43 is installed in place, the shield 431 is pulled out at the notch 4231. At this time, the second opening is no longer blocked, and the needle in the magazine 43 is supplied to the first opening.
[0041] Two inclined surfaces are formed on the opposite surfaces of one end of the two side plates 421, and the two inclined surfaces are gradually converging, that is, the two inclined surfaces gradually converge toward the first opening direction. The inclined surfaces are used to guide the needle, and the inclined surfaces are in contact with the side walls of the needle.
[0042] The lower surface of the notch 4231 is at the same height as the upper end of the inclined surface. In other words, the second opening is at the same height as the lower surface of the notch 4231. This prevents the needle from exiting the magazine 43 from flowing out of the notch 4231. Before installing the magazine 43, the front baffle 422 is opened and part of the needle is placed between the inclined surface and the minute hand wheel 44 to reduce the height difference between the second opening and the first opening, thereby preventing the needle from reversing when falling from the second opening.
[0043] It includes a needle loading spoon 45 , one end of which is formed with a receiving groove 451 for receiving needles. The receiving groove 451 is semicircular, and the central axis of the receiving groove 451 is parallel to the central axis of the needle in the receiving groove 451 .
[0044] In this embodiment, the holding groove 451 is inserted into the needle loading box along the central axis direction of the needle, and the needle loading spoon 45 is rotated to load the needle into the holding groove 451. The needle loading spoon 45 is moved to the first opening so that the needle in the holding groove 451 is parallel to the needle in the clip 43 and has the same direction. The needle loading spoon 45 is rotated again to guide the needle in the holding groove 451 into the clip 43. In this way, the grabbing action is avoided, the probability of the needle tilting is reduced, and the smoothness of the subsequent needle removal by the minute hand wheel 44 is further improved.
[0045] A column 4321 is installed on the pressure block 432, one end of the column 4321 passes through the clip 43, and a spring 4322 is sleeved on the column 4321. The spring 4322 is located inside the clip 43, one end of the spring 4322 is against the pressure block 432, and the other end of the spring 4322 is against the inner surface of the clip 43. In a natural state, the spring 4322 always pushes the pressure block 432 toward the second opening so that the pressure block 432 pushes the needle in the clip 43. When replenishing the needle, one end of the column 4321 is pulled to move the pressure block 432 away from the second opening so that a new needle can be placed from the second opening. A scale is provided on the column 4321 so that the staff can observe the distance from the pressure block 432 to the second opening to determine whether the clip 43 needs to be replaced.
[0046] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A syringe needle loading mechanism, characterized in that: include: A base (41) is provided with a needle storage bin (42) and a minute hand wheel (44), one end of the needle storage bin (42) is in contact with the outer surface of the minute hand wheel (44), and a first opening is formed at one end of the needle storage bin (42); A clip (43) is provided in the needle storage bin (42), a chamber for storing needles is formed in the clip (43), a second opening is formed at one end of the clip (43) facing the first opening, the second opening is used for placing or discharging needles, a liftable pressure block (432) is provided in the chamber, the pressure block (432) is used for pushing the needles toward the second opening or forming a certain space at one end of the chamber having the second opening, the second opening is used for supplying needles to the needle storage bin (42); The first opening is used to distribute the needles toward the minute hand wheel (44), and the minute hand wheel (44) can take the needles away from the needle storage bin (42) one by one.
2. The syringe needle loading mechanism according to claim 1, characterized in that: The minute hand wheel (44) is cylindrical, and the central axis of the minute hand wheel (44) rotates. A groove (442) is formed on the circumferential surface of the minute hand wheel (44), and the depth of the groove (442) is not less than the diameter of one needle head and not greater than the diameter of two needle heads.
3. The syringe needle loading mechanism according to claim 2, characterized in that: The length of the minute hand wheel (44) is smaller than the length of the needle.
4. The syringe needle loading mechanism according to claim 2, characterized in that: The minute hand wheel (44) is connected to a driving assembly (441), and the driving assembly (441) can drive the minute hand wheel (44) to rotate clockwise or counterclockwise around its central axis.
5. The syringe needle loading mechanism according to claim 4, characterized in that: A shield (431) is provided at one end of the clip (43) facing the first opening. Before the clip (43) provides needles to the needle storage bin (42), the shield (431) is used to block the second opening.
6. The syringe needle loading mechanism according to claim 5, characterized in that: A boss (4311) is formed at one end of the shield (431), a convex block (4312) is formed on the side of the boss (4311) facing the clip (43), a concave hole (4313) is formed on the side wall of the clip (43), and the size of the convex block (4312) matches that of the concave hole (4313).
7. The syringe needle loading mechanism according to claim 6, characterized in that: The needle storage bin (42) comprises two side panels (421), a front baffle (422) and a rear baffle (423). The two side panels (421) are arranged opposite to each other. The front baffle (422) is used to connect one side of the two side panels (421), and the rear baffle (423) is used to connect the other side of the two side panels (421). A notch (4231) is provided on the upper surface of the rear baffle (423), and one end of the shield (431) is slidably connected to the inner surface of the notch (4231).
8. The syringe needle loading mechanism according to claim 7, characterized in that: Two inclined surfaces are formed on the opposite surfaces of one end of the two side plates (421), and the two inclined surfaces are gradually gathered together. The inclined surfaces are used to guide the needle.
9. The syringe needle loading mechanism according to claim 8, characterized in that: The lower surface of the notch (4231) and the upper end of the inclined surface are located at the same height.
10. The syringe needle loading mechanism according to claim 1, characterized in that: The needle loading spoon (45) comprises a needle loading spoon (45), one end of which is formed with a receiving groove (451), the receiving groove (451) being used for receiving the needle, the receiving groove (451) being semicircular, and the central axis of the receiving groove (451) being parallel to the central axis of the needle in the receiving groove (451).