A syringe feeding mechanism

By designing a combination of storage, lifting, and feeding components, the problem of poor syringe specification adaptability was solved, enabling precise syringe feeding and automated conveying, avoiding clogging and damage at the feeding port, and improving production efficiency.

CN224429254UActive Publication Date: 2026-06-30HUZHOU SHENGKE MEDICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUZHOU SHENGKE MEDICAL EQUIP CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing syringe feeding devices cannot adjust the feed inlet according to syringe specifications, leading to problems such as feed inlet blockage or syringe damage.

Method used

A syringe feeding mechanism was designed, comprising a storage component, a lifting component, and a feeding component. Through a combination of a motor-driven lead screw and a connecting block, the automated directional delivery of syringes and adaptability to different specifications are achieved.

Benefits of technology

It enables precise feeding of syringes of different specifications, avoiding clogging of the feeding port and damage to the syringes, and improving production efficiency and consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of feeding technology and discloses a syringe feeding mechanism, including a storage component; a lifting component for assisting in lifting the feeding mechanism; and a feeding component for feeding the syringe. The storage component includes: a housing; brackets welded to the four lower corners of the housing; and inclined plates welded to the inner wall of the housing. The lifting component includes: a first lead screw rotatably connected to the lower middle part of the housing via a bearing; and a first motor keyed to the lower end of the first lead screw. The feeding component includes: a second lead screw keyed to the power output end of the second motor. This utility model allows for the rotation of a handle, which drives a third lead screw. The other end of the third lead screw is connected to a sliding plate via a bearing, thus moving a fourth connecting block, which in turn moves a second track. The movement stops when the distance between the second track and the first track is equal to the syringe diameter, thus accommodating syringes of different sizes.
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Description

Technical Field

[0001] This utility model relates to the field of feeding technology, specifically a syringe feeding mechanism. Background Technology

[0002] Syringes are common medical devices, primarily used for the injection, extraction, or transfer of liquids, and have wide applications in medical, scientific research, and industrial fields. Syringe feeding mechanisms are key components in automated production or packaging equipment, used to achieve automatic delivery, positioning, and sorting of syringes. Their core function is to precisely transport disordered or stacked syringes according to a specific orientation (such as needle tip direction or axial direction) to the next process (such as assembly, filling, labeling, sterilization, etc.), replacing manual feeding and improving production efficiency and consistency.

[0003] The existing publicly available technical solution CN220221318U discloses an automatic feeding mechanism for syringe production, including a feeding bin. A feed hopper is fixedly connected to the top of the feeding bin. A left slot and a right slot are respectively opened on the left and right sides inside the feed hopper. A discharge port is fixedly connected to the bottom of the feeding bin. An opening and closing mechanism is provided inside the feeding bin, including a connecting plate, a left stop block, and a right stop block. The connecting plate is laterally slidably connected inside the feeding bin. This solves the problem that in the above-mentioned solution, before the syringes are conveyed by the conveyor belt, they still need to be placed on a placement baffle to allow them to enter the packaging device in an orderly manner for packaging. However, since a large number of syringes need to be fed on the production line, manually placing the syringes on the placement baffle would require a significant amount of labor.

[0004] However, when implementing existing technical solutions, there are often various syringe specifications. When the syringe size is too large or too small, the device cannot adjust the feed port according to the size of the syringe, which may result in blockage of the feed port or too many syringes entering at once, thereby damaging the equipment and syringes. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has problems with syringes that are too large or too small, the device cannot adjust the feed inlet according to the size of the syringe, which may result in blockage of the feed inlet or too many syringes being fed at once, thus causing damage to the equipment and syringes.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A syringe feeding mechanism includes: a material storage component; a lifting component for assisting in lifting the feeding mechanism; and a feeding component for feeding the syringe.

[0009] The storage assembly includes: a box body; brackets welded to the four lower corners of the box body; and inclined plates welded to the inner wall of the box body;

[0010] The lifting assembly includes: a first lead screw rotatably connected to the lower middle part of the housing via a bearing; and a first motor connected to the lower end of the first lead screw;

[0011] The feeding assembly includes: a second motor fixed to the middle right side of the housing by external bolts; and a second lead screw connected to the power output end of the second motor.

[0012] As a further embodiment of this utility model, the lifting assembly further includes: a first connecting block threadedly connected to the surface of the first lead screw; the first lead screw passes through the interior of the first connecting block.

[0013] As a further embodiment of this utility model, the feeding assembly further includes: a third connecting block threaded to the surface of the second lead screw; and a feeding plate welded to the upper end of the third connecting block.

[0014] As a further embodiment of this utility model, the feeding assembly further includes: a slide plate welded above the second lead screw; and a fourth connecting block slidably connected to the slide groove inside the slide plate.

[0015] As a further embodiment of this utility model, the feeding assembly further includes: a third lead screw threadedly connected to the inside of the fourth connecting block; and a handle fixed to the front end of the third lead screw.

[0016] As a further embodiment of this utility model, the feeding assembly further includes: a first track welded to the front end of the box; a second track welded to the left end of the fourth connecting block; an anti-drop box welded below the first track; and a support rod slidably connected to the left side frame of the anti-drop box.

[0017] As a further embodiment of this utility model: a pusher assembly is provided at the front end of the first connecting block; the pusher assembly includes: a pusher plate welded to the front end of the first connecting block; and a second connecting block slidably connected to the upper groove of the pusher plate.

[0018] As a further embodiment of this utility model, the pushing assembly further includes: a reset spring disposed at the front end of the second connecting block; and a material blocking sheet welded to the upper end of the second connecting block.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model uses a rotating handle to drive a third lead screw. The other end of the third lead screw is connected to a slide plate via a bearing, which in turn drives the fourth connecting block to move, thereby driving the second track to move. The movement stops when the distance between the second track and the first track is equal to the diameter of the syringe, thus accommodating syringes of different specifications.

[0021] 2. In this utility model, the pusher plate moves upward. Since the pusher plate is narrow, syringes with excessively large offset angles will fall off the pusher plate, and the pusher plate will drive syringes with smaller offset amplitudes to move upward.

[0022] 3. When the push plate moves up to the upper port and is flush with the box body, the second motor is started. The second motor rotates and drives the second lead screw. The second lead screw is threadedly connected to the third connecting block. The upper end of the third connecting block is welded with the feeding plate. Therefore, when the second lead screw rotates, it drives the third connecting block to move forward, and then drives the feeding plate to move forward. When the feeding plate contacts the blocking plate, the blocking plate moves forward slowly and uniformly under force. At this time, the reset spring is deformed, and the blocking plate pushes the syringe until the syringe falls into the first track and the second track. At this time, the syringe slides down the track due to gravity. Attached Figure Description

[0023] Figure 1 This is a right view of the syringe feeding mechanism of this utility model;

[0024] Figure 2 This is a left view of the syringe feeding mechanism of this utility model;

[0025] Figure 3 This is a cross-sectional view of the pusher plate of the pusher assembly of this utility model;

[0026] Figure 4 This is a partial structural diagram of the feeding component of this utility model;

[0027] Figure 5 This is a top view of the syringe feeding mechanism of this utility model.

[0028] In the diagram: 1. Storage assembly; 101. Box body; 102. Bracket; 103. Inclined plate; 2. Lifting assembly; 201. First motor; 202. First lead screw; 203. First connecting block; 3. Pushing assembly; 301. Pushing plate; 302. Return spring; 303. Second connecting block; 304. Material blocking plate; 4. Feeding assembly; 401. Second motor; 402. Second lead screw; 403. Third connecting block; 404. Feeding plate; 405. Slide plate; 406. Third lead screw; 407. Fourth connecting block; 408. Handle; 409. First track; 410. Second track; 411. Support rod; 412. Anti-drop box. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0032] Example 1:

[0033] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention.

[0034] This embodiment provides a syringe feeding mechanism, including: a material storage component 1; a lifting component 2 for assisting in lifting the feeding mechanism; and a feeding component 4 for feeding the syringe.

[0035] The storage assembly 1 includes: a box 101; brackets 102 welded to the four lower corners of the box 101; and inclined plates 103 welded to the inner wall of the box 101.

[0036] The lifting assembly 2 includes: a first lead screw 202 rotatably connected to the lower middle part of the housing 101 via a bearing; and a first motor 201 connected to the lower end of the first lead screw 202;

[0037] The feeding assembly 4 includes: a second motor 401 fixed to the middle right side of the housing 101 by external bolts; and a second lead screw 402 connected to the power output end of the second motor 401.

[0038] Specifically, the lifting assembly 2 also includes: a first connecting block 203 threadedly connected to the surface of the first lead screw 202; the first lead screw 202 passes through the interior of the first connecting block 203.

[0039] Furthermore, the first motor 201 rotates, driving the first lead screw 202, which is keyed to its power output end. The first lead screw 202 has a first connecting block 203 threadedly connected to its surface, thus driving the first connecting block 203.

[0040] Specifically, the feeding assembly 4 also includes: a third connecting block 403 threaded to the surface of the second lead screw 402; and a feeding plate 404 welded to the upper end of the third connecting block 403.

[0041] Furthermore, the second motor 401 rotates to drive the second lead screw 402, which is threadedly connected to the third connecting block 403. The upper end of the third connecting block 403 is welded with a feeding plate 404. Therefore, when the second lead screw 402 rotates, it drives the third connecting block 403 to move forward.

[0042] Specifically, the feeding assembly 4 also includes: a slide plate 405 welded above the second lead screw 402; and a fourth connecting block 407 slidably connected to the slide groove inside the slide plate 405.

[0043] Furthermore, the grip 408 drives the third lead screw 406, the other end of which is connected to the slide plate 405 via a bearing, thus driving the fourth connecting block 407 to move.

[0044] In use, first rotate the handle 408, which drives the third lead screw 406. The other end of the third lead screw 406 is connected to the slide plate 405 via a bearing, thus moving the fourth connecting block 407, which in turn moves the second track 410. The movement stops when the distance between the second track 410 and the first track 409 is equal to the diameter of the syringe. When the syringe enters the housing 101, due to the obstruction of the inclined plate 103, the syringe slides down the inclined plate 103 to the bottom of the housing 101 under its own weight. At this time, the first motor is turned on. 201. The first motor 201 rotates, driving the first lead screw 202, which is keyed to its power output end. The first lead screw 202 has a threaded connection to the surface of the first connecting block 203. Since the first connecting block 203 is welded to the pusher plate 301, and the pusher plate 301 is slidably connected to the inner walls of the left and right sides of the housing 101, the first lead screw 202 drives the first connecting block 203 to move upward, which in turn drives the pusher plate 301 to move upward. Since the pusher plate 301 is relatively narrow, syringes with excessively large offset angles will be ejected from the pusher plate. When the syringe falls from the pusher plate 301, the pusher plate 301 moves the syringe with a small offset upward. A stop plate 304 is installed above the pusher plate 301 to prevent the syringe from falling during the upward movement. A second connecting block 303 is fixed to the lower middle part of the stop plate 304. The second connecting block 303 is connected to a return spring 302, and the other end of the return spring 302 is connected to the housing 101. When the pusher plate 301 moves upward until its upper end is flush with the housing 101, the second motor 401 is started. The second motor 401 rotates, driving the second lead screw 402. The lead screw 402 is threadedly connected to a third connecting block 403. A feeding plate 404 is welded to the upper end of the third connecting block 403. Therefore, when the second lead screw 402 rotates, it drives the third connecting block 403 to move forward, which in turn drives the feeding plate 404 to move forward. When the feeding plate 404 contacts the blocking plate 304, the blocking plate 304 moves forward slowly and uniformly under force. At this time, the return spring 302 deforms, and the blocking plate 304 pushes the syringe until the syringe falls into the first track 409 and the second track 410. At this time, the syringe slides down the track due to gravity.

[0045] In summary, this invention utilizes a rotating handle 408, which drives a third lead screw 406. The other end of the third lead screw 406 is connected to a sliding plate 405 via a bearing, thus moving the fourth connecting block 407, which in turn moves the second track 410. The movement stops when the distance between the second track 410 and the first track 409 is equal to the syringe diameter, accommodating syringes of different sizes. The upward movement of the pusher plate 301, due to its narrow width, prevents syringes with excessively large offset angles from falling off, while the pusher plate 301 moves syringes with smaller offsets upwards.

[0046] Example 2:

[0047] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0048] Specifically, the feeding assembly 4 also includes: a third lead screw 406 threadedly connected inside the fourth connecting block 407; and a handle 408 fixed to the front end of the third lead screw 406.

[0049] Furthermore, rotating the handle 408 causes the third lead screw 406 to move. The other end of the third lead screw 406 is connected to the slide plate 405 via a bearing, which in turn causes the fourth connecting block 407 to move, thereby causing the second track 410 to move.

[0050] Specifically, the feeding assembly 4 also includes: a first track 409 welded to the front end of the box 101; a second track 410 welded to the left end of the fourth connecting block 407; an anti-drop box 412 welded below the first track 409; and a support rod 411 slidably connected to the left side frame of the anti-drop box 412.

[0051] Furthermore, the syringe falls onto the first track 409 and the second track 410. At this time, the syringe slides down the track due to gravity. When the syringe is small, the pusher plate 301 may drive several syringes in the same direction to move upward. At this time, some syringes may fall into the anti-drop box 412 to collect them and prevent damage. The support rod 411 is used to support the second track 410.

[0052] Specifically, the front end of the first connecting block 203 is provided with a pusher assembly 3; the pusher assembly 3 includes: a pusher plate 301 welded to the front end of the first connecting block 203; and a second connecting block 303 slidably connected to the upper groove of the pusher plate 301.

[0053] Furthermore, the first motor 201 rotates, driving the first lead screw 202, which is keyed to its power output end. The first lead screw 202 has a threaded connection to the first connecting block 203, thus driving the first connecting block 203 to move. After the material is pushed, the return spring 302 acts on the second connecting block 303 due to the reaction force generated by the deformation, thereby driving the material blocking piece 304 to return to its original state.

[0054] Specifically, the pusher assembly 3 also includes: a reset spring 302 disposed at the front end of the second connecting block 303; and a material blocking piece 304 welded to the upper end of the second connecting block 303.

[0055] Furthermore, when the feeding plate 404 contacts the material blocking plate 304, the material blocking plate 304 moves forward slowly and uniformly under force, at which time the return spring 302 deforms.

[0056] In use, first rotate the handle 408, which drives the third lead screw 406. The other end of the third lead screw 406 is connected to the slide plate 405 via a bearing, thus driving the fourth connecting block 407 to move, which in turn drives the second track 410 to move. The movement stops when the distance between the second track 410 and the first track 409 is equal to the diameter of the syringe. When the syringe enters the housing 101, due to the obstruction of the inclined plate 103, the syringe slides down the inclined plate 103 to the bottom of the housing 101 under its own weight. At this time, the first motor 201 is activated, and the first motor 201 rotates, driving the fourth connecting block 407 connected to its power output end to move. A lead screw 202 has a threaded connection to a first connecting block 203. Since the first connecting block 203 is welded to a pusher plate 301, and the pusher plate 301 is slidably connected to the inner walls of the left and right sides of the housing 101, the lead screw 202 drives the first connecting block 203 upwards, which in turn drives the pusher plate 301 upwards. Because the pusher plate 301 is relatively narrow, syringes with excessively large offset angles will fall off the pusher plate 301. The pusher plate 301 drives syringes with smaller offset amplitudes upwards. A baffle plate 304 is installed above the pusher plate 301 to prevent syringes from falling during the upward movement. When the material falls, a second connecting block 303 is fixed to the lower end of the middle of the material blocking plate 304. The second connecting block 303 is connected to the return spring 302, and the other end of the return spring 302 is connected to the housing 101. When the push plate 301 moves up to the upper port being flush with the housing 101, the second motor 401 is started. The second motor 401 rotates and drives the second lead screw 402. The second lead screw 402 is threadedly connected to the third connecting block 403. The upper end of the third connecting block 403 is welded to the feeding plate 404. Therefore, when the second lead screw 402 rotates, it drives the third connecting block 403 to move forward, thereby driving the feeding plate 404 to move forward. When the feeding plate 404... When the syringe comes into contact with the resisting plate 304, the resisting plate 304 moves forward slowly and uniformly under force. At this time, the return spring 302 deforms, and the resisting plate 304 pushes the syringe until the syringe falls into the first track 409 and the second track 410. At this time, the syringe slides down the track due to gravity. When the syringe is small, the pusher plate 301 may drive several syringes in the same direction to move upward. At this time, some syringes may fall into the anti-drop box 412 to collect them and prevent damage. After the push is completed, the reaction force generated by the deformation of the return spring 302 acts on the second connecting block 303, which in turn drives the resisting plate 304 to return to its original state.

[0057] In summary, this utility model uses the rotating handle 408 to drive the third lead screw 406. The other end of the third lead screw 406 is connected to the slide plate 405 through a bearing, which in turn drives the fourth connecting block 407 to move, thereby driving the second track 410 to move. The second track 410 stops when the distance between the second track 410 and the first track 409 is equal to the diameter of the syringe, thus adapting to syringes of different specifications. When the pusher plate 301 moves upward to the upper port level with the housing 101, the second motor 401 is activated. The second motor 401 rotates and drives the second lead screw 402. The second lead screw 402 is threadedly connected to the third connecting block 403. The upper end of the third connecting block 403 is welded to the feeding plate 404. Therefore, when the second lead screw 402 rotates, it drives the third connecting block 403 to move forward, which in turn drives the feeding plate 404 to move forward. When the feeding plate 404 contacts the blocking plate 304, the blocking plate 304 moves forward slowly and uniformly under force. At this time, the reset spring 302 deforms, and the blocking plate 304 pushes the syringe until the syringe falls into the first track 409 and the second track 410. At this time, the syringe slides down the track due to gravity.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A syringe feeding mechanism, characterized in that: include: Storage component (1); Lifting component (2) for assisting in lifting the feeding mechanism; A feeding assembly (4) for feeding the syringe; The storage assembly (1) includes: a box (101); brackets (102) welded to the four corners below the box (101); and inclined plates (103) welded to the inner wall of the box (101). The lifting assembly (2) includes: a first lead screw (202) rotatably connected to the lower middle part of the housing (101) via a bearing; and a first motor (201) keyed to the lower end of the first lead screw (202). The feeding assembly (4) includes: a second motor (401) fixed to the middle right side of the housing (101) by external bolts; and a second lead screw (402) connected to the power output end of the second motor (401).

2. The syringe feeding mechanism according to claim 1, characterized in that: The lifting assembly (2) further includes: a first connecting block (203) threaded to the surface of the first lead screw (202); the first lead screw (202) passes through the interior of the first connecting block (203).

3. The syringe feeding mechanism according to claim 1, characterized in that: The feeding assembly (4) further includes: a third connecting block (403) threaded to the surface of the second lead screw (402); and a feeding plate (404) welded to the upper end of the third connecting block (403).

4. The syringe feeding mechanism according to claim 3, characterized in that: The feeding assembly (4) further includes: a slide plate (405) welded above the second lead screw (402); and a fourth connecting block (407) slidably connected to the slide groove inside the slide plate (405).

5. The syringe feeding mechanism according to claim 4, characterized in that: The feeding assembly (4) further includes: a third lead screw (406) threaded inside the fourth connecting block (407); and a handle (408) fixed to the front end of the third lead screw (406).

6. The syringe feeding mechanism according to claim 4, characterized in that: The feeding assembly (4) further includes: a first track (409) welded to the front end of the box (101); a second track (410) welded to the left end of the fourth connecting block (407); an anti-drop box (412) welded below the first track (409); and a support rod (411) slidably connected to the left side frame of the anti-drop box (412).

7. The syringe feeding mechanism according to claim 2, characterized in that: The first connecting block (203) is provided with a pusher assembly (3) at its front end; the pusher assembly (3) includes: a pusher plate (301) welded to the front end of the first connecting block (203); and a second connecting block (303) slidably connected to the upper groove of the pusher plate (301).

8. The syringe feeding mechanism according to claim 7, characterized in that: The pusher assembly (3) further includes: a reset spring (302) disposed at the front end of the second connecting block (303); and a material blocking piece (304) welded to the upper end of the second connecting block (303).