Material shortage screening device for needle head part of pre-filling and sealing needle cylinder
By designing a pre-filled syringe head material shortage screening device for belt conveyors, sensors and removal components, the problem of difficult to efficiently screen material shortage of pre-filled syringe head material in the prior art is solved, and automated and accurate material shortage screening and removal are realized, and production efficiency is improved.
Patent Information
- Application Number
- CN202422077757.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the prior art, it is difficult to efficiently screen out the material shortage problem of the pre-filled syringe, which is mainly due to the low efficiency of manual observation, which makes it difficult to detect syringes with less material shortage.
A pre-filled syringe needle missing screening device including a belt conveyor, a mounting frame, a first sensor, a second sensor and a removal assembly is designed. The syringe is conveyed through the belt conveyor, and the syringe is passed through the screening station one by one. The first sensor is used to detect whether there is a syringe in the screening station, and the second sensor detects whether the syringe head is missing, and the syringe in the missing material is automatically removed by the removal component.
Compared with manual observation, the device improves screening accuracy and efficiency, can efficiently identify and eliminate missing syringes, significantly improving production efficiency.
Smart Images
Figure CN222999195U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of screening equipment, and particularly relates to a screening device for the lack of material at the needle head of a pre-filled syringe. Background Art
[0002] The pre-filled syringe has the functional characteristics of being convenient to use, having less residue, and accurate dosage, and is widely used in veterinary drugs, pet drugs and other drugs. It is a common packaging form for liquid (including suspension) and paste drugs.
[0003] The pre-filled syringe is usually manufactured by injection molding. Since the head of the pre-filled syringe is relatively small, defects are likely to occur during production, resulting in a missing section at the head of the pre-filled syringe.
[0004] The products with lack of material need to be screened out. At present, most of them adopt the method of manual observation, observing and screening one by one, with low efficiency, and it is not easy to find the syringes with less lack of material by the way of human eye observation. Summary of the Utility Model
[0005] The utility model provides a screening device for the lack of material at the needle head of a pre-filled syringe, aiming to solve the technical problems put forward in the above background art.
[0006] To achieve the above object, the technical solution adopted by the utility model is: to provide a screening device for the lack of material at the needle head of a pre-filled syringe, which includes a belt conveyor, a mounting frame, a first sensor, a second sensor and an ejection assembly. The belt conveyor is used to convey the pre-filled syringe, and a screening station is arranged on the belt conveyor; the mounting frame is fixedly arranged on one side of the belt conveyor; the first sensor is arranged on one side of the screening station and is connected with the mounting frame to detect whether there is a syringe at the screening station; the second sensor is arranged above the first sensor and is connected with the mounting frame to detect whether the head of the syringe at the screening station lacks material; the ejection assembly is arranged on one side of the belt conveyor to eject the syringe with lack of material at the head.
[0007] In a possible implementation manner of the screening device for the lack of material at the needle head of the pre-filled syringe provided by the utility model, both the first sensor and the second sensor are photoelectric sensors.
[0008] In a possible implementation manner of the screening device for the lack of material at the needle head of the pre-filled syringe provided by the utility model, the mounting frame includes:
[0009] A sliding rod, vertically arranged and connected with the belt conveyor;
[0010] The first slider is slidably arranged on the slide bar. A first locking bolt is provided on the first slider, and the first locking bolt is used to lock the position of the first slider relative to the slide bar. The first sensor is connected to the first slider; and
[0011] The second slider is slidably arranged on the slide bar. A second locking bolt is provided on the second slider, and the second locking bolt is used to lock the position of the second slider relative to the slide bar. The second sensor is connected to the second slider.
[0012] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, the rejection assembly includes a nozzle, a pipeline and a solenoid valve. The nozzle is connected to the mounting bracket, and the air outlet of the nozzle faces the syringe on the belt conveyor; one end of the pipeline is connected to the nozzle, and the other end is adapted to be communicated with a gas source; the solenoid valve is arranged on the pipeline to control the on-off of the pipeline.
[0013] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, a guiding assembly is further included. The guiding assembly is arranged above the belt conveyor and connected to the belt conveyor to guide the syringe on the belt conveyor to move towards the side where the mounting bracket is located.
[0014] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, the guiding assembly includes a first stop bar and a second stop bar. The first stop bar is arranged on the side of the belt conveyor close to the mounting bracket and on the side where the first sensor faces the belt conveyor. The first stop bar is connected to the belt conveyor, and the length direction of the first stop bar is parallel to the conveying direction of the belt conveyor; the second stop bar is arranged on the side of the first stop bar facing away from the mounting bracket and is connected to the belt conveyor. The downstream end of the second stop bar is arranged upstream of the first sensor and the distance from the first stop bar is greater than or equal to the outer diameter of the syringe, and the upstream end of the second stop bar is connected to the side of the belt conveyor facing away from the mounting bracket.
[0015] The beneficial effect of the pre-filled syringe needle head material shortage screening device provided by the present utility model is that: compared with the prior art, the pre-filled syringe needle head material shortage screening device provided by the present utility model conveys the syringe through a belt conveyor, so that the syringes pass through the screening station one by one. The first sensor is used to detect whether there is a syringe at the screening station, and the second sensor is used to detect whether the head of the syringe at the screening station lacks material. If there is a material shortage, the syringe is removed from the belt conveyor through the rejection assembly. Compared with the screening method by manual observation, the screening accuracy and efficiency are higher. Description of the Drawings
[0016] Figure 1 Schematic perspective view of the device for screening shortage of materials at the needle head of a pre-filled syringe provided by an embodiment of the present utility model;
[0017] Figure 2 For Figure 1 the enlarged view of part A in
[0018] Explanation of reference numerals:
[0019] 10, belt conveyor; 21, slide bar; 22, first slider; 23, first locking bolt;
[0020] 24, second slider; 25, second locking bolt; 31, first sensor; 32, second sensor;
[0021] 41, air nozzle; 42, pipeline; 43, solenoid valve; 51, first stop bar; 52, second stop bar. Specific embodiments
[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0025] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the description. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0026] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0027] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. may be used here to describe the spatial positional relationships of one device or feature and other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation depicted in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device may also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.
[0028] In addition, it should be noted that the use of terms such as "first", "second", etc. to define components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present application.
[0029] Please refer to Figures 1 to 2, a description is now given to the pre-filled syringe needle head material shortage screening device provided by the present utility model. The pre-filled syringe needle head material shortage screening device includes a belt conveyor 10, a mounting frame, a first sensor 31, a second sensor 32 and an ejection assembly. The belt conveyor 10 is used to convey pre-filled syringes, and a screening station is provided on the belt conveyor 10; the mounting frame is fixedly arranged on one side of the belt conveyor 10; the first sensor 31 is arranged on one side of the screening station and is connected to the mounting frame to detect whether there is a syringe at the screening station; the second sensor 32 is arranged above the first sensor 31 and is connected to the mounting frame to detect whether the head of the syringe at the screening station is lacking in material; the ejection assembly is arranged on one side of the belt conveyor 10 to eject the syringe with a lack of material at the head.
[0030] The beneficial effects of the pre-filled syringe needle head material shortage screening device provided by the present utility model are as follows: Compared with the prior art, the pre-filled syringe needle head material shortage screening device provided by the present utility model conveys the syringes through the belt conveyor 10, so that the syringes pass through the screening station one by one. The first sensor 31 detects whether there is a syringe at the screening station, and the second sensor 32 detects whether the head of the syringe at the screening station is lacking in material. If there is a lack of material, the syringe is ejected from the belt conveyor 10 through the ejection assembly. Compared with the screening method by manual observation, the screening accuracy and efficiency are higher.
[0031] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, both the first sensor 31 and the second sensor 32 are photoelectric sensors.
[0032] It should be noted that the syringe with a lack of material at the head is shorter than a complete syringe by a certain dimension. When the first sensor 31 is blocked, it indicates that the syringe has moved to the screening station. If the second sensor 32 is also blocked, it indicates that the syringe is intact and there is no lack of material at the head; if the second sensor 32 is not blocked, it indicates a lack of material at the head.
[0033] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, the mounting frame includes a sliding rod 21, a first slider 22 and a second slider 24. The sliding rod 21 is arranged vertically and is connected to the belt conveyor 10; the first slider 22 is slidably arranged on the sliding rod 21, and a first locking bolt 23 is provided on the first slider 22 to lock the position of the first slider 22 relative to the sliding rod 21. The first sensor 31 is connected to the first slider 22; the second slider 24 is slidably arranged on the sliding rod 21, and a second locking bolt 25 is provided on the second slider 24 to lock the position of the second slider 24 relative to the sliding rod 21. The second sensor 32 is connected to the second slider 24.
[0034] Specifically, the heights of syringes of different specifications are not exactly the same. Therefore, the first sensor 31 and the second sensor 32 are slidably arranged on the sliding rod 21 through the first slider 22 and the second slider 24, so as to facilitate the adjustment of the heights of the first sensor 31 and the second sensor 32 to match the height of the syringe, and expand the applicable range of the device.
[0035] It should be noted that both the first slider 22 and the second slider 24 are provided with openings on one side. The first locking bolt 23 and the second locking bolt 25 both pass through the openings. By rotating the bolts, the size of the openings is adjusted to realize the locking and release of the first slider 22 and the second slider 24.
[0036] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, the rejection component includes an air nozzle 41, a pipeline 42 and a solenoid valve 43. The air nozzle 41 is connected to the mounting frame, and the air outlet of the air nozzle 41 faces the syringe on the belt conveyor 10; one end of the pipeline 42 is connected to the air nozzle 41, and the other end is adapted to be communicated with a gas source; the solenoid valve 43 is arranged on the pipeline 42 to control the on-off of the pipeline 42 and facilitate the realization of automation at the same time.
[0037] It should be noted that when it is detected that the head of the syringe at the screening station is short of material, the pipeline 42 is controlled to be communicated through the solenoid valve 43, and the air nozzle 41 jets air to blow out the syringe with material shortage from the belt conveyor 10.
[0038] In a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, a guiding component is further included. The guiding component is arranged on the upper side of the belt conveyor 10 and connected to the belt conveyor 10 to guide the syringe on the belt conveyor 10 to move towards the side where the mounting frame is located.
[0039] Specifically, in a possible implementation manner of the pre-filled syringe needle head material shortage screening device provided by the present utility model, the guiding component includes a first stop bar 51 and a second stop bar 52. The first stop bar 51 is arranged on the side of the belt conveyor 10 close to the mounting frame and on the side where the first sensor 31 faces the belt conveyor 10. The first stop bar 51 is connected to the belt conveyor 10, and the length direction of the first stop bar 51 is parallel to the conveying direction of the belt conveyor 10; the second stop bar 52 is arranged on the side of the first stop bar 51 facing away from the mounting frame and connected to the belt conveyor 10. The downstream end of the second stop bar 52 is arranged upstream of the first sensor 31 and the distance from the first stop bar 51 is greater than or equal to the outer diameter of the syringe, and the upstream end of the second stop bar 52 is connected to the side of the belt conveyor 10 facing away from the mounting frame.
[0040] It should be noted that the syringes upstream of the belt conveyor 10 are usually in multiple rows. Therefore, the first stop bar 51 and the second stop bar 52 are provided to gradually reduce the flow area, thereby changing the multiple rows of syringes into one row, so that only one syringe passes through the screening station at a time.
[0041] Furthermore, the pre-filled syringe needle head material shortage screening device provided in this embodiment further includes a controller, which is electrically connected to the first sensor 31, the second sensor 32 and the solenoid valve 43 to achieve automatic and continuous screening.
[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A device for screening the lack of material in the needle head of a prefilled syringe, characterized in that: include: A belt conveyor, used for conveying prefilled syringes, wherein a screening station is provided on the belt conveyor; A mounting frame, fixedly arranged on one side of the belt conveyor; A first sensor, disposed at one side of the screening station and connected to the mounting frame, is used to detect whether there is a syringe at the screening station; A second sensor is disposed on the upper side of the first sensor and connected to the mounting frame, and is used to detect whether the head of the syringe on the screening station is short of material; as well as The rejecting assembly is arranged on one side of the belt conveyor and is used to reject the syringes with insufficient material at the head.
2. The prefilled syringe needle head shortage screening device according to claim 1, characterized in that: The first sensor and the second sensor are both photoelectric sensors.
3. The prefilled syringe needle head shortage screening device according to claim 1, characterized in that: The mounting frame comprises: A sliding rod, arranged vertically and connected to the belt conveyor; A first slider is slidably disposed on the slide bar, a first locking bolt is disposed on the first slider, and the first locking bolt is used to lock the position of the first slider relative to the slide bar, and the first sensor is connected to the first slider; and The second slider is slidably disposed on the slider bar. The second slider is provided with a second locking bolt. The second locking bolt is used to lock the position of the second slider relative to the slider bar. The second sensor is connected to the second slider.
4. The prefilled syringe needle head shortage screening device according to claim 1, characterized in that: The rejection component comprises: An air nozzle connected to the mounting frame, wherein the air outlet of the air nozzle faces the syringe on the belt conveyor; A pipeline, one end of which is connected to the gas nozzle and the other end of which is suitable for communicating with the gas source; The solenoid valve is arranged on the pipeline and is used to control the on-off of the pipeline.
5. The prefilled syringe needle head shortage screening device according to claim 1, characterized in that: It also includes a guide assembly, which is arranged on the upper side of the belt conveyor and connected to the belt conveyor, and is used to guide the syringe on the belt conveyor to move toward the side where the mounting frame is located.
6. The prefilled syringe needle head shortage screening device according to claim 5, characterized in that: The guide assembly comprises: a first baffle, disposed on a side of the belt conveyor close to the mounting frame and located on a side of the first sensor facing the belt conveyor, the first baffle being connected to the belt conveyor, and a length direction of the first baffle being parallel to a conveying direction of the belt conveyor; and The second baffle is arranged on the side of the first baffle facing away from the mounting frame and is connected to the belt conveyor. The second baffle is located at the downstream end and is arranged upstream of the first sensor and the distance between the second baffle and the first baffle is greater than or equal to the outer diameter of the syringe. The upstream end of the second baffle is connected to the side of the belt conveyor facing away from the mounting frame.