Automatic dispensing equipment for head end of laryngeal mask

The application of automated dispensing equipment has solved the problems of slow speed and inconsistent quality of manual dispensing, achieving efficient and precise dispensing in laryngeal mask production, and ensuring product quality consistency and production efficiency.

CN224072446UActive Publication Date: 2026-04-03ZHEJIANG UE MEDICAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In the current production of laryngeal masks, manual dispensing relies on the experience and skill level of the operators, resulting in slow operation speed, difficulty in ensuring quality consistency, and susceptibility to operational factors, making it difficult to meet the needs of large-scale production.

Method used

The automated dispensing equipment includes an automated dispensing mechanism, a multi-station turntable, a positioning carrier, a clamping and limiting mechanism, and a dispensing inspection mechanism. It achieves precise dispensing through motor-driven rotation and three-dimensional drive movement mechanism, and combines industrial camera for visual inspection to ensure dispensing quality and consistency.

Benefits of technology

This technology enables efficient and precise dispensing of adhesive during laryngeal mask production, improving product quality consistency and production efficiency while reducing the uncertainty of manual operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses automatic dispensing equipment for the head end of a laryngeal mask, which comprises an automatic dispensing mechanism mounted on a machine table, a multi-station turntable mounted on the machine table, a positioning carrier fixed on the multi-station turntable and used for positioning the laryngeal mask, and a clamping and limiting mechanism arranged close to the automatic dispensing mechanism and used for clamping and limiting the laryngeal mask, the multi-station turntable is driven by the motor device to rotate intermittently, and the automatic dispensing mechanism comprises a dispensing head for dispensing to the head end of the laryngeal mask and a dispensing moving mechanism for driving the dispensing head to move. According to the automatic dispensing equipment for the head end of the laryngeal mask, automatic dispensing of the head end of the laryngeal mask can be realized, the dispensing efficiency and accuracy are improved, the consistency of product quality can be better ensured, and the automatic dispensing equipment has good practicability.
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Description

Technical Field

[0001] This utility model belongs to the field of laryngeal mask production technology, specifically relating to an automatic glue dispensing device for the head end of a laryngeal mask. Background Technology

[0002] The laryngeal mask airway (LMA), an important medical device, is widely used in anesthesia and emergency care to maintain a patient's airway patency. Its core structure consists of two parts: a ventilation tube and a cuff. One end of the ventilation tube connects to an anesthesia machine or ventilator, while the other end is fitted with a cuff. The cuff is inflated through an injection tube, creating a sealed ventilation space in the larynx to ensure airflow into the lungs. During production, the tip of the LMA's ventilation tube needs to be assembled with the cuff, and adhesive is applied at the connection point to ensure a strong, airtight connection and long-term reliability. However, current production methods primarily rely on manual adhesive application, which presents several problems: manual application depends on the operator's experience and skill level, is slow, and cannot meet the demands of large-scale production; furthermore, manual application is susceptible to operational factors such as uneven adhesive application and application deviations, making it difficult to guarantee consistent quality and potentially leading to poor sealing or shortened product lifespan. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic dispensing device for the head end of a laryngeal mask, which aims to achieve efficient and precise dispensing operations through automation technology to meet the standard requirements for laryngeal mask production.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides an automatic dispensing device for the head end of a laryngeal mask, including an automatic dispensing mechanism mounted on a machine base, a multi-station turntable mounted on the machine base, a positioning carrier fixed on the multi-station turntable for positioning the laryngeal mask, and a clamping and limiting mechanism for clamping and limiting the laryngeal mask located near the automatic dispensing mechanism. The multi-station turntable is driven by a motor to rotate intermittently. The automatic dispensing mechanism includes a dispensing head for dispensing adhesive to the head end of the laryngeal mask and a dispensing moving mechanism for driving the dispensing head to perform moving actions.

[0006] Preferably, the clamping and limiting mechanism includes a first clamping unit and a second clamping unit disposed opposite to each other; the first clamping unit and the second clamping unit can move closer to each other and further apart, clamping the laryngeal mask when they are close together and releasing the laryngeal mask when they are far apart.

[0007] Preferably, a fixed shaft is fixed on the machine base, the fixed shaft passes through the center hole of the multi-station turntable, and a fixed plate is fixed on the upper end of the fixed shaft. The fixed plate is located on the upper side of the multi-station turntable. The first clamping unit is installed on the machine base, and the second clamping unit is installed on the fixed plate.

[0008] Preferably, the first clamping unit includes a first clamping block and a first driving cylinder for moving the first clamping block, and the second clamping unit includes a second clamping block and a second driving cylinder for moving the second clamping block; the first clamping block and the second clamping block are respectively driven by the first driving cylinder and the second driving cylinder to move closer and further apart; the first clamping block and the second clamping block respectively have clamping surfaces that match the shapes of the two sides of the airbag.

[0009] Preferably, a dispensing detection mechanism is provided at a downstream station of the automatic dispensing mechanism. The dispensing detection mechanism is used to perform visual inspection on the dispensing area at the head end of the throat mask. The dispensing detection mechanism includes an industrial camera connected to the control system.

[0010] Preferably, the industrial camera is mounted on a lifting drive mechanism and is driven to move up and down by the lifting drive mechanism.

[0011] Preferably, a laryngeal mask straightening mechanism is provided at the dispensing detection mechanism, which is used to straighten the position of the laryngeal mask head end.

[0012] Preferably, the laryngeal mask straightening mechanism includes a mounting frame fixed to the machine base, a linear drive component mounted on the mounting frame, and a straightening block driven to move by the linear drive component. The straightening block is provided with a slot suitable for forming a limiting fit with the corresponding part of the laryngeal mask.

[0013] Preferably, the dispensing moving mechanism is a three-dimensional driving moving mechanism to adapt to driving the dispensing head to move in three-dimensional space.

[0014] Preferably, the positioning carrier is provided with a positioning cavity suitable for the tail end of the laryngeal mask to be inserted, a stop plate arranged opposite to the insertion port of the positioning cavity, and a positioning shaft fixed on the stop plate and protruding in the positioning cavity toward the insertion port. The positioning shaft is suitable for insertion into the opening at the tail end of the laryngeal mask.

[0015] The positive effects of this utility model are as follows: When using the automatic dispensing equipment for the laryngeal mask head end, the laryngeal mask is positioned on a positioning carrier. A multi-station turntable rotates the positioning carrier to the automatic dispensing mechanism, where the dispensing head is aligned with the area requiring dispensing at the head end of the laryngeal mask. The dispensing movement mechanism moves the dispensing head, ensuring precise dispensing at the required position. Furthermore, a clamping and limiting mechanism clamps and limits the laryngeal mask head end during dispensing, ensuring accuracy. This automatic dispensing equipment better guarantees product quality consistency and effectively improves production efficiency, demonstrating excellent practicality. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art are briefly introduced below. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional schematic diagram of the automatic dispensing device for the throat mask head end of this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the automatic dispensing device for the throat hood head end of this utility model after the cover has been removed.

[0019] Figure 3 This is a schematic diagram of the automatic dispensing mechanism in this utility model;

[0020] Figure 4 This is a structural diagram showing the combined state of the laryngeal mask limiting mechanism, multi-station turntable, fixed plate, and dispensing detection mechanism in this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the throat cover of this utility model when it is mounted on the positioning carrier;

[0022] Figure 6 This is a cross-sectional view of the positioning carrier in this utility model;

[0023] Figure 7 and Figure 8 These are schematic diagrams of the first clamping block and the second clamping block in this utility model.

[0024] Figure 9 This is a schematic diagram of the laryngeal mask airway.

[0025] The attached figures are labeled as follows: 1. Machine base; 10. Cover; 2. Automatic dispensing mechanism; 21. Dispensing head; 22. Dispensing moving mechanism; 221. Electric cylinder; 3. Multi-station turntable; 30. Motor device; 4. Laryngeal mask; 41. Airbag; 42. Opening; 43. Dispensing part; 5. Positioning carrier; 51. Positioning cavity; 52. Stop platform; 53. Positioning shaft; 54. Insertion port; 6. Clamping and limiting mechanism; 61. First clamping unit; 611. First clamping block; 612. First drive cylinder; 62. Second clamping unit; 621. Second clamping block; 622. Second drive cylinder; 63. Clamping surface; 7. Fixed plate; 8. Dispensing detection mechanism; 81. Industrial camera; 82. Lifting drive mechanism; 9. Laryngeal mask straightening mechanism; 91. Mounting bracket; 92. Linear drive component; 93. Straightening block; 94. Groove. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0028] The automatic dispensing device for the laryngeal mask head end according to this embodiment of the utility model has the following structure: Figure 1-9 As shown, the device includes an automatic dispensing mechanism 2 mounted on a machine base 1, a multi-station turntable 3 mounted on the machine base 1, a positioning carrier 5 fixed to the multi-station turntable 3 for positioning a laryngeal mask 4, and a clamping and limiting mechanism 6 located near the automatic dispensing mechanism 2 for clamping and limiting the laryngeal mask 4. The multi-station turntable 3 is driven by a motor device 30 to rotate intermittently. The automatic dispensing mechanism 2 includes a dispensing head 21 for dispensing adhesive to the head of the laryngeal mask 4 and a dispensing moving mechanism 22 for driving the dispensing head 21 to perform moving actions. In use, the automatic dispensing device for the head of the laryngeal mask in this invention positions the laryngeal mask 4. On the positioning carrier 5, the multi-station turntable 3 drives the positioning carrier 5 to rotate to the automatic dispensing mechanism 2. The dispensing head 21 of the automatic dispensing mechanism 2 is aligned with the head end 43 of the throat mask 4 to dispense glue. The dispensing moving mechanism 22 drives the dispensing head 21 to move, enabling the dispensing head to accurately complete the dispensing operation at the required position. Moreover, during the dispensing process, the clamping and limiting mechanism 6 clamps and limits the head end of the throat mask 4 to ensure the accuracy of the dispensing. The use of this automatic dispensing equipment can better ensure the consistency of product quality and effectively improve production efficiency, making it highly practical. To improve protection, a cover 10 can be fixedly installed on the upper part of the machine base 1. The installation of the throat mask 4 onto the positioning carrier 5 and the removal of the throat mask 4 from the positioning carrier 5 can be done manually or through an automated mechanism.

[0029] Combination Figure 2 and Figure 4 As shown, the clamping and limiting mechanism 6 includes a first clamping unit 61 and a second clamping unit 62 arranged opposite to each other. The first clamping unit 61 and the second clamping unit 62 can move closer and further away from each other. When the first clamping unit 61 and the second clamping unit 62 are close together, they can tightly clamp the throat mask 4 to ensure the stability of the throat mask 4 during the dispensing operation, thereby ensuring the dispensing position accuracy. When the first clamping unit 61 and the second clamping unit 62 are far apart, the throat mask 4 is released so that the multi-station turntable 3 can drive the throat mask 4 to rotate to the next station, thereby achieving efficient and continuous operation.

[0030] See Figure 4As shown, a fixed shaft is fixed on the machine base 1. The fixed shaft passes through the center hole of the multi-station turntable 3, and a fixed plate 7 is fixed at the upper end of the fixed shaft. The fixed plate 7 is located on the upper side of the multi-station turntable 3. The first clamping unit 61 is installed on the machine base 1, and the second clamping unit 62 is installed on the fixed plate 7. This arrangement is more conducive to the reasonable installation of the second clamping unit 62 and facilitates the structural optimization design. Moreover, the fixed plate 7 can also provide a stable foundation and more flexible space layout for the installation of other related mechanisms (such as dispensing calibration mechanism), thereby improving the integration and operability of the equipment.

[0031] See Figure 4 , Figure 7 and Figure 8 The first clamping unit 61 includes a first clamping block 611 and a first driving cylinder 612 for moving the first clamping block 611. The second clamping unit 62 includes a second clamping block 621 and a second driving cylinder 622 for moving the second clamping block 621. The first clamping block 611 and the second clamping block 621 move closer and further apart by the driving of the first driving cylinder 612 and the second driving cylinder 622, respectively. The first clamping block 611 and the second clamping block 621 each have clamping surfaces 63 that match the shapes of the two sides of the airbag 41. This adaptive design can not only form a uniform and stable clamping force on both sides of the airbag 41 when the first clamping block 611 and the second clamping block 621 are close together, significantly improving the limiting effect on the airbag 41 part of the laryngeal mask 4, but also avoid deformation or damage to the airbag 41 due to excessive local force, ensuring the integrity of the airbag 41 during the clamping process.

[0032] For further implementation plans, see Figure 2 and Figure 4 A dispensing inspection mechanism 8 is provided at a downstream station of the automatic dispensing mechanism 2. The dispensing inspection mechanism 8 is used to perform visual inspection on the dispensing part 43 at the head end of the throat mask 4. The dispensing inspection mechanism 8 includes an industrial camera 81 connected to the control system. By performing high-precision visual inspection on the dispensing part 43 at the head end of the throat mask 4, the inspection data is fed back to the control system to determine in real time whether the dispensing quality meets the standards. By effectively identifying dispensing defects, such as uneven glue amount, glue leakage, or glue line deviation, the dispensing accuracy and consistency of the throat mask 4 are ensured. In practical applications, when a dispensing defect is detected, the control system can remind the user by controlling the multi-station turntable 3 to stop rotating or issuing an audible and visual alarm.

[0033] like Figure 4The industrial camera 81 is mounted on a lifting drive mechanism 82 and is driven to move up and down by the lifting drive mechanism 82. This design allows the industrial camera 81 to flexibly adjust its height according to the inspection requirements, moving closer to the upper end glue portion 43 of the throat mask 4, thereby obtaining clearer and more accurate inspection images and effectively improving the accuracy and reliability of visual inspection. In addition, after the inspection is completed, the industrial camera 81 can also be moved upward by the lifting drive mechanism 82 to avoid interference with the throat mask 4 as it rotates with the multi-station turntable 3, ensuring the continuity and efficiency of the production process.

[0034] Continue reading Figure 4 The dispensing inspection mechanism 8 is equipped with a laryngeal mask straightening mechanism 9. The laryngeal mask straightening mechanism 9 is used to straighten the position of the head end of the laryngeal mask 4 to ensure that it maintains a stable and accurate alignment during the inspection process. Through the action of the laryngeal mask straightening mechanism 9, the laryngeal mask 4 can be quickly and effectively adjusted to the ideal position when it enters the dispensing inspection station, thereby avoiding inspection errors caused by positional deviation or incorrect posture, and improving the accuracy and reliability of visual inspection.

[0035] Preferably, the laryngeal mask airway straightening mechanism 9 includes a mounting frame 91 fixed to the machine base 1, a linear drive 92 mounted on the mounting frame 91, and a straightening block 93 driven by the linear drive 92. The straightening block 93 is provided with a slot 94 suitable for forming a limiting fit with the corresponding part of the laryngeal mask airway 4. Through the design of the slot 94, the corresponding part of the laryngeal mask airway 4 can be accurately held and limited. When the laryngeal mask airway 4 enters the testing station, the linear drive 92 drives the straightening block 93 to move, so that the slot 94 fits tightly with the laryngeal mask airway 4, realizing rapid and reliable straightening of the head end of the laryngeal mask airway 4. After the test is completed, the linear drive 92 drives the straightening block 93 to move to a position separated from the laryngeal mask airway 4. The linear drive 92 is preferably a cylinder, but an electric cylinder can also be used.

[0036] See Figure 3 The dispensing moving mechanism 22 is a three-dimensional driven moving mechanism to adapt to the flexible movement of the dispensing head 21 in three-dimensional space, meeting the requirements of dispensing operations. For example, this three-dimensional driven moving mechanism achieves precise motion control by setting three cooperating electric cylinders 221 in a three-dimensional coordinate system. One electric cylinder 221 drives the dispensing head 21 to move horizontally in the X-axis direction, another electric cylinder 221 controls horizontal movement in the Y-axis direction, and the third electric cylinder 221 drives vertical lifting in the Z-axis direction. The three electric cylinders 221 work collaboratively through a high-precision servo motor and control system to achieve precise positioning and flexible movement of the dispensing head 21 in three-dimensional space.

[0037] like Figure 5 , 6As shown in Figure 9, the positioning carrier 5 is provided with a positioning cavity 51 suitable for the tail end of the laryngeal mask 4 to be inserted, a stop plate 52 opposite to the insertion port 54 of the positioning cavity 51, and a positioning insertion shaft 53 fixed on the stop plate 52 and protruding in the positioning cavity 51 toward the insertion port 54. The positioning insertion shaft 53 is suitable for insertion into the opening 42 at the tail end of the laryngeal mask 4. In this design, the positioning carrier 5 is equipped with a positioning cavity 51, a stop plate 52 and a positioning insertion shaft 53. Shaft 53 enables precise positioning of the tail end of the throat mask 4: The tail end of the throat mask 4 first passes through the insertion port 54 of the positioning cavity 51, and is then blocked and limited by the stop plate 52. At the same time, the positioning shaft 53 and the opening 42 at the tail end of the throat mask 4 form a tight insertion, thereby ensuring that the throat mask 4 is fixed and reliably positioned on the carrier. Moreover, the installation and removal of the throat mask 4 is relatively convenient. After the throat mask 4 is positioned on the positioning carrier 5, the glue dispensing part 43 at the head end of the throat mask 4 faces upward to better adapt to the glue dispensing operation.

[0038] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this invention still fall within the protection scope of this utility model.

Claims

1. A laryngeal mask head-end automated dispensing apparatus, characterized by: The device comprises an automatic dispensing mechanism (2) installed on a machine table (1), a multi-station turntable (3) installed on the machine table (1), a positioning carrier (5) fixed on the multi-station turntable (3) for positioning a laryngeal mask (4), and a clamping and limiting mechanism (6) arranged near the automatic dispensing mechanism (2) for clamping and limiting the laryngeal mask (4). The multi-station turntable (3) is driven to rotate intermittently by a motor device (30). The automatic dispensing mechanism (2) comprises a dispensing head (21) for dispensing at the head end of the laryngeal mask (4) and a dispensing moving mechanism (22) for driving the dispensing head (21) to perform a moving action.

2. The laryngeal mask head-end automated dispensing apparatus of claim 1, wherein: The clamping and limiting mechanism (6) comprises a first clamping unit (61) and a second clamping unit (62) arranged oppositely. The first clamping unit (61) and the second clamping unit (62) can approach and move away from each other, and when they approach, they clamp the laryngeal mask (4), and when they move away, they release the laryngeal mask (4).

3. The laryngeal mask head-end automated dispensing apparatus of claim 2, wherein: A fixed shaft is fixed on the machine table (1), passes through the center hole of the multi-station turntable (3), and has a fixed disc (7) fixed on the upper end of the fixed shaft. The fixed disc (7) is located on the upper side of the multi-station turntable (3). The first clamping unit (61) is installed on the machine table (1), and the second clamping unit (62) is installed on the fixed disc (7).

4. The laryngeal mask head-end automated dispensing apparatus of claim 2, wherein: The first clamping unit (61) comprises a first clamping block (611) and a first driving cylinder (612) for driving the first clamping block (611) to move. The second clamping unit (62) comprises a second clamping block (621) and a second driving cylinder (622) for driving the second clamping block (621) to move. The first clamping block (611) and the second clamping block (621) can approach and move away from each other by the driving of the first driving cylinder (612) and the second driving cylinder (622) respectively. The first clamping block (611) and the second clamping block (621) respectively have clamping surfaces (63) matching the shapes of the two side surfaces of the air bag (41).

5. The laryngeal mask head-end automated dispensing apparatus of claim 1, wherein: A dispensing detection mechanism (8) is arranged at a downstream station of the automatic dispensing mechanism (2). The dispensing detection mechanism (8) is used for visual detection of the dispensing part (43) at the head end of the laryngeal mask (4). The dispensing detection mechanism (8) comprises an industrial camera (81) connected to a control system.

6. The laryngeal mask head-end automated dispensing apparatus of claim 5, wherein: The industrial camera (81) is installed on a lifting driving mechanism (82) and is driven to move up and down by the lifting driving mechanism (82).

7. The laryngeal mask head-end automated dispensing apparatus of claim 5, wherein: A laryngeal mask righting mechanism (9) is arranged correspondingly at the dispensing detection mechanism (8). The laryngeal mask righting mechanism (9) is used for righting the position of the head end of the laryngeal mask (4).

8. The laryngeal mask head-end automated dispensing apparatus of claim 7, wherein: The laryngeal mask righting mechanism (9) comprises a mounting bracket (91) fixed on the machine table (1), a linear driving member (92) installed on the mounting bracket (91), and a righting block (93) driven to move by the linear driving member (92). The righting block (93) is provided with a notch (94) suitable for limiting cooperation with the corresponding part of the laryngeal mask (4).

9. The laryngeal mask head-end automated dispensing apparatus of claim 1, wherein: The dispensing moving mechanism (22) is a three-dimensional driving moving mechanism, which is suitable for driving the dispensing head (21) to move in three-dimensional space.

10. The laryngeal mask head-end automated dispensing apparatus of claim 1, wherein: The positioning device (5) is provided with a positioning cavity (51) suitable for the tail end of the laryngeal mask (4) to pass into, a stop platform (52) arranged opposite to the insertion opening (54) of the positioning cavity (51), and a positioning shaft (53) fixed on the stop platform (52) and protruding towards the insertion opening (54) in the positioning cavity (51), the positioning shaft (53) being suitable for being inserted into the opening (42) of the tail end of the laryngeal mask (4).