Glue amount detection mechanism of glue dispenser
By using a detection structure with a laser emitter and a detection plate in the dispensing machine, the influence of environmental interference on glue quantity detection is solved, enabling accurate glue quantity detection and improving dispensing accuracy and product quality stability.
Patent Information
- Application Number
- CN202520558902.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The glue volume detection mechanism of existing dispensing machines has high requirements for the installation environment and is easily affected by vibration or external force interference, which can lead to measurement errors. In addition, the weighing sensor may be impacted during high-speed dispensing, affecting the detection accuracy.
The detection structure employs a laser emitting plate and a detection plate. By utilizing the principles of light blocking and penetration, combined with a scale plate to observe the remaining amount of glue, it achieves glue quantity detection and improves accuracy.
Accurately detect adhesive volume under various environmental conditions, reduce measurement errors, ensure consistent adhesive volume, and improve product quality stability.
Smart Images

Figure CN223827116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adhesive quantity detection technology for dispensing machines, specifically to an adhesive quantity detection mechanism for dispensing machines. Background Technology
[0002] The glue quantity detection mechanism of a dispensing machine is a key component to ensure the accuracy and consistency of the dispensing process. It is mainly used to monitor and control the amount of glue dispensed in real time. By detecting the glue quantity, it can ensure that the amount of glue used for each product is consistent, thereby improving the stability of product quality, reducing quality problems caused by glue quantity issues such as poor adhesion and glue overflow affecting the appearance, and reducing the defect rate.
[0003] A high-precision weighing sensor is installed below the dispensing head. During the dispensing process, the sensor measures the weight change of the glue in real time. The weight change is converted into glue volume data through a pre-set algorithm, thereby accurately calculating the glue volume for each dispensing. However, in actual use, the installation environment is highly demanding. Even slight vibrations or external interference may affect the weighing accuracy. If the dispensing speed is too fast, the glue impacting the weighing sensor may cause measurement errors. Therefore, we propose a glue volume detection mechanism for a dispensing machine. Utility Model Content
[0004] The purpose of this invention is to provide a glue quantity detection mechanism for a dispensing machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a glue quantity detection mechanism for a dispensing machine, comprising a glue tank, one end of which is connected to a liquid outlet pipe, and the other end of which is connected to a pressure pipe. A detection structure is provided on the surface of the glue tank, comprising a laser emitting plate and a detection plate. Both the laser emitting plate and the detection plate are located on the arc surface of the glue tank and are symmetrically placed. A light strip is installed on the side of the laser emitting plate closest to the glue tank. Frames are fixedly connected to both sides of the laser emitting plate. Velcro is fixedly connected to both sides of the detection plate, penetrating the frames. A rectangular hole is opened on the surface of the detection plate, and a scale plate is fixedly connected to the inner wall of the rectangular hole. Wires are electrically connected to the surface of the light strip, penetrating the laser emitting plate.
[0006] The effect achieved by the above components is as follows: by setting up a detection structure, the light strip emits light, the glue in the glue container blocks the light, the light passes through the blank area in the glue container, and the light that passes through the glue container will illuminate the scale plate in the detection plate. By observing the position of the light on the scale plate and combining it with the pre-calibrated data, the operator can determine the remaining amount of glue in the glue container, thereby realizing the detection of glue quantity and improving the accuracy of glue quantity detection.
[0007] Preferably, two U-shaped plates are fixedly connected to one side of the laser emitting plate, and two rectangular strips are fixedly connected to one side of the detection plate, with the rectangular strips fitting against the inner wall of the U-shaped plates.
[0008] The effect achieved by the above components is that the rectangular strip is inserted into the U-shaped plate to ensure that the relative positions of the two are fixed during the detection process, so that the laser emitting plate and the detection plate are symmetrically distributed, thereby improving the detection accuracy.
[0009] Preferably, a protective plate is fixedly connected to the side of the detection plate away from the glue can, the protective plate covers the rectangular hole, and the protective plate is made of transparent acrylic material.
[0010] The effect achieved by the above components is that the protective plate covers the rectangular hole, thereby protecting the scale plate and preventing dust from adhering to it, so as to make the scale plate clearly visible.
[0011] Preferably, two extension frames are fixedly connected to both sides of the detection plate, and a light-shielding plate is fixedly connected to one end of each extension frame away from the detection plate.
[0012] The above components achieve the following effects: the light shield can effectively block external light, and the staff can view from the side of the gap between the light shield and the detection plate, ensuring accurate detection of adhesive volume under various ambient light conditions.
[0013] Preferably, two anti-slip strips, which are rubber strips, are fixedly connected to the sides of the laser emitting plate and the detection plate that are close to each other.
[0014] The effect achieved by the above components is that the anti-slip strips increase the friction between the laser emitting plate and the detection plate and the glue can, preventing the detection structure from slipping during use.
[0015] Preferably, a plurality of arc-shaped plates are fixedly connected to one side of the laser emitting plate, and the arc-shaped plates are fitted onto the surface of the wire.
[0016] The effect achieved by the above components is to fix the wires in place using the curved plate, thereby preventing the wires from interfering with the dispensing of the dispensing machine.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This invention, through the setting of a detection structure, achieves the effect of light strip emitting light, while the glue in the glue container blocks the light. The light then passes through the blank area inside the glue container and illuminates the scale plate in the detection plate. By observing the position of the light on the scale plate and combining it with pre-calibrated data, the operator can determine the remaining amount of glue in the glue container, thereby realizing the detection of glue quantity and improving the accuracy of glue quantity detection. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the detection structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the laser emitting plate of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the detection plate of this utility model;
[0023] Figure 5 This is a schematic diagram of the disassembly structure of the detection plate of this utility model.
[0024] In the diagram: 1. Glue container; 2. Discharge pipe; 3. Pressure pipe; 4. Detection structure; 401. Laser emitting plate; 402. Light strip; 403. Frame; 404. Detection plate; 405. Velcro; 406. Rectangular hole; 407. Scale plate; 408. Wire; 409. U-shaped plate; 410. Rectangular strip; 411. Protective plate; 412. Extension frame; 413. Light shield; 414. Anti-slip strip; 415. Curved plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-2This utility model provides a technical solution: a glue quantity detection mechanism for a dispensing machine, including a glue tank 1, one end of which is connected to a liquid outlet pipe 2, and the other end of which is connected to a pressure pipe 3. A detection structure 4 is provided on the surface of the glue tank 1, comprising a laser emitting plate 401 and a detection plate 404. Both the laser emitting plate 401 and the detection plate 404 are located on the arc surface of the glue tank 1 and are symmetrically placed. A light strip 402 is installed on the side of the laser emitting plate 401 closest to the glue tank 1. Frames 403 are fixedly connected to both sides of the laser emitting plate 401. Velcro 405s are fixedly connected to both sides of the detection plate 404, with the Velcro 405s penetrating the frames 403. The detection plate 404 has a rectangular hole 406 on its surface. A scale plate 407 is fixedly connected to the inner wall of the rectangular hole 406. A wire 408 is electrically connected to the surface of the light strip 402. The wire 408 passes through the laser emitting plate 401. By setting the detection structure 4, the light strip 402 emits light. The glue in the glue can 1 will block the light. The light will pass through the blank area in the glue can 1. The light that passes through the glue can 1 will shine on the scale plate 407 in the detection plate 404. By observing the position of the light on the scale plate 407 and combining it with the pre-calibrated data, the operator can determine the remaining amount of glue in the glue can 1, thereby realizing the detection of glue quantity and improving the accuracy of glue quantity detection.
[0027] Reference Figure 3 - Figure 5As shown in this embodiment: two U-shaped plates 409 are fixedly connected to one side of the laser emitting plate 401, and two rectangular strips 410 are fixedly connected to one side of the detection plate 404. The rectangular strips 410 are attached to the inner wall of the U-shaped plates 409 and inserted into the U-shaped plates 409 to ensure that their relative positions are fixed during the detection process, so that the laser emitting plate 401 and the detection plate 404 are symmetrically distributed, improving the detection accuracy. A protective plate 411 is fixedly connected to the side of the detection plate 404 away from the glue container 1. The protective plate 411 covers the rectangular hole 406. The protective plate 411 is made of transparent acrylic material. The protective plate 411 covers the rectangular hole 406, thereby protecting the scale plate 407 and preventing dust from adhering to the scale plate 407 so that the scale plate 407 can be clearly observed. Two extension brackets 412 are fixedly connected to both sides of the detection plate 404. A light-shielding plate 413 is fixedly connected to the end of each extension bracket 412 away from the detection plate 404. The light-shielding plate 413 effectively blocks external light, allowing operators to observe from the side of the gap between the light-shielding plate 413 and the detection plate 404, ensuring accurate glue quantity detection under various ambient light conditions. Two anti-slip strips 414 are fixedly connected to the sides of the laser emitting plate 401 and the detection plate 404 that are close to each other. The anti-slip strips 414 are rubber strips that increase the friction between the laser emitting plate 401 and the detection plate 404 and the glue container 1, preventing the detection structure 4 from slipping during use. Several arc-shaped plates 415 are fixedly connected to one side of the laser emitting plate 401. The arc-shaped plates 415 fit over the surface of the wire 408, securing the wire 408 and preventing it from interfering with the dispensing machine's dispensing.
[0028] Working Principle: During actual installation, the laser emitting plate 401 and the detection plate 404 are first placed on the arc surface of the glue tank 1. The laser emitting plate 401 is connected to the detection plate 404 through the frame 403 and Velcro 405, ensuring that the laser emitting plate 401 and the detection plate 404 can be stably installed on the arc surface of the glue tank 1. The rectangular strip 410 is inserted into the U-shaped plate 409 to ensure that the relative positions of the two are fixed during the detection process, so that the laser emitting plate 401 and the detection plate 404 are symmetrically distributed, improving the detection accuracy. The wire 408 is connected to supply power to the light strip 402, and the wire 408 is fixed by the arc plate 415. When the dispensing machine is working, the liquid level of the glue in the glue tank 1 will change, and the light strip 402 will emit light. The glue in the glue tank 1 will block the light, and the light will pass through the blank area in the glue tank 1 and penetrate. The light from the glue container 1 shines onto the scale plate 407 inside the detection plate 404. By observing the position of the light on the scale plate 407 and combining it with pre-calibrated data, the operator can determine the remaining amount of glue in the glue container 1, thus achieving glue quantity detection. During use, the protective plate 411 covers the rectangular hole 406, thereby protecting the scale plate 407 and preventing dust from adhering to it, so as to clearly observe the scale plate 407. The light shield 413 can effectively block external light, and the operator can view from the side of the gap between the light shield 413 and the detection plate 404, ensuring accurate glue quantity detection under various ambient light conditions. The anti-slip strip 414 increases the friction between the laser emitting plate 401, the detection plate 404 and the glue container 1, preventing the detection structure 4 from slipping during use.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A glue quantity detection mechanism for a dispensing machine, comprising a glue tank (1), one end of which is connected to a liquid outlet pipe (2), and the other end of which is connected to a pressure pipe (3), wherein a detection structure (4) is provided on the surface of the glue tank (1), characterized in that: The detection structure (4) includes a laser emitting plate (401) and a detection plate (404). Both the laser emitting plate (401) and the detection plate (404) are located on the arc surface of the glue container (1). The laser emitting plate (401) and the detection plate (404) are placed symmetrically. A light strip (402) is installed on the side of the laser emitting plate (401) closest to the glue container (1). A frame (403) is fixedly connected to both sides of the laser emitting plate (401). Velcro (405) is fixedly connected to both sides of the detection plate (404). The Velcro (405) passes through the frame (403). A rectangular hole (406) is opened on the surface of the detection plate (404). A scale plate (407) is fixedly connected to the inner wall of the rectangular hole (406). A wire (408) is electrically connected to the surface of the light strip (402). The wire (408) passes through the laser emitting plate (401).
2. The glue quantity detection mechanism for a dispensing machine according to claim 1, characterized in that: Two U-shaped plates (409) are fixedly connected to one side of the laser emitting plate (401), and two rectangular strips (410) are fixedly connected to one side of the detection plate (404). The rectangular strips (410) are in contact with the inner wall of the U-shaped plates (409).
3. The adhesive quantity detection mechanism for a dispensing machine according to claim 1, characterized in that: A protective plate (411) is fixedly connected to the side of the detection plate (404) away from the glue can (1). The protective plate (411) covers the rectangular hole (406) and is made of transparent acrylic material.
4. The glue quantity detection mechanism of a dispensing machine according to claim 1, characterized in that: Two extension frames (412) are fixedly connected to both sides of the detection plate (404), and a light shield (413) is fixedly connected to one end of each extension frame (412) away from the detection plate (404).
5. The adhesive quantity detection mechanism for a dispensing machine according to claim 1, characterized in that: Two anti-slip strips (414) are fixedly connected to the side of the laser emitting plate (401) and the detection plate (404) that are close to each other. The anti-slip strips (414) are rubber strips.
6. The glue quantity detection mechanism of a dispensing machine according to claim 1, characterized in that: A plurality of arc-shaped plates (415) are fixedly connected to one side of the laser emitting plate (401), and the arc-shaped plates (415) are fitted onto the surface of the wire (408).