Opposed needle mechanism for a dispensing machine
Patent Information
- Application Number
- CN202521797668.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-08-22
AI Technical Summary
[0004]本实用新型的目的在于提供用于点胶机的对针机构,解决了点胶针头需要定位维护或者更换操作,当更换后的胶头将会出现与上一次使用的误差性,无法实现精准位置控制,导致点胶位置不同,影响了使用效果的问题
本实用新型通过设置有:第一红外线发射器、第二红外线发射器、胶筒、第二螺纹杆和移动板,通过对第一红外线发射器的转动调整,将红外线与第二红外线发射器发出的红外线两点在点胶机底板的表面重合,从而能够准确控制胶筒点胶的准确位置,随后对胶筒进行更换和维护操作,维护后将胶筒安装卡接在卡块的内部,再由第二红外线发射器进行配合胶筒的底端进行红外线发射,根据两点在点胶机底板的表面是否重合,当没有重合时可通过旋钮的转动,带动第二螺纹杆转动,与移动板进行螺纹配合,即可实现横向位置移动,方便对移动板和胶筒实现横向位置的移动,完成调节操作,从而完成准确对针作用。
Smart Images

Figure CN224724376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of needle alignment technology for dispensing machines, and particularly to a needle alignment mechanism for dispensing machines. Background Technology
[0002] A dispensing machine, also known as an adhesive applicator, glue applicator, glue applicator, or glue dispensing machine, is a specialized machine for controlling fluids. It is an automated machine that dispenses or coats fluids onto the surface or interior of a product. It can achieve three-dimensional and four-dimensional path dispensing, precise positioning, accurate glue control, and prevents stringing, leakage, and dripping. Dispensing machines are mainly used in product manufacturing processes to precisely dispense, inject, coat, or drip adhesives, paints, and other liquids onto specific locations on each product. They can be used to create dots, lines, circles, or arcs.
[0003] Existing dispensing machines can automate dispensing operations on boards that require dispensing. However, the dispensing needles need to be positioned, maintained, or replaced. When the dispensing needles are replaced, there will be errors compared to the previous ones, making it impossible to achieve precise position control. This results in different dispensing positions and affects the performance. Therefore, a needle alignment mechanism is needed to perform the alignment function and achieve the desired calibration effect. Utility Model Content
[0004] The purpose of this invention is to provide a needle-aligning mechanism for a dispensing machine, which solves the problem that the dispensing needle needs to be positioned, maintained, or replaced. When the dispensing needle is replaced, there will be an error compared to the previous one, making it impossible to achieve precise position control, resulting in different dispensing positions and affecting the performance.
[0005] To achieve the above objectives, a needle-aligning mechanism for a dispensing machine is provided, comprising: a dispensing machine base plate, with movable columns slidably fitted at both ends of the base plate, a horizontal plate frame fixedly connected above the movable columns, a first threaded rod rotatably connected inside the horizontal plate frame, a threaded block threadedly connected to the middle of the first threaded rod, a second threaded rod rotatably connected to the front side above the threaded block, a movable plate threadedly connected to the outer side of the second threaded rod, a glue cylinder disposed on the front side of the movable plate, a second infrared emitter disposed at the bottom end of the glue cylinder, a fixed frame fixedly connected to one side of the threaded block, and a first infrared emitter rotatably connected to the inner side of the end of the fixed frame.
[0006] As a preferred embodiment of this utility model, a locking block is fixedly connected to the front side of the movable plate, and the interior of the locking block is engaged with the rubber cylinder.
[0007] As a preferred embodiment of this utility model, the top end of the rubber tube is fixedly connected to a liquid inlet pipe.
[0008] As a preferred embodiment of this utility model, a drive motor is fixedly connected above the end of one side of the movable column, and the drive end of the drive motor is fixedly connected to the first threaded rod.
[0009] As a preferred embodiment of this utility model, a fastening bolt is threadedly connected to one bottom end of the fixing frame, and the fastening bolt and the first infrared emitter are in contact and engaged.
[0010] As a preferred embodiment of this utility model, an iron ring is fixedly connected to the outer side of the bottom end of the rubber tube, and a magnetic block is magnetically connected to the bottom end of the iron ring. The magnetic block is fixedly connected to the second infrared emitter.
[0011] As a preferred embodiment of this invention, an adjusting bolt is threaded onto one side of the second infrared emitter.
[0012] As a preferred embodiment of this utility model, a knob is fixedly connected to one end of the second threaded rod.
[0013] The above-mentioned solution has the following beneficial effects: This invention comprises a first infrared emitter, a second infrared emitter, a glue cartridge, a second threaded rod, and a movable plate. By rotating and adjusting the first infrared emitter, the infrared rays emitted by the first and second infrared emitters are aligned on the surface of the dispensing machine's base plate. This allows for accurate control of the glue cartridge's dispensing position. The glue cartridge can then be replaced or maintained. After maintenance, the cartridge is secured in a locking mechanism, and the second infrared emitter, in conjunction with the bottom of the cartridge, emits infrared rays. Depending on whether the two points on the dispensing machine's base plate are aligned, if not, rotating a knob rotates the second threaded rod, which engages with the movable plate, allowing for lateral movement of the movable plate and glue cartridge. This facilitates adjustment and ensures accurate needle alignment.
[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a three-dimensional structural diagram of the needle-aligning mechanism of the present invention used in a dispensing machine; Figure 2 This is a schematic diagram illustrating the infrared irradiation structure of the needle-aligning mechanism of the present invention used in a dispensing machine. Figure 3 This is an enlarged view of the overall structure of the threaded block and glue tube of the needle-aligning mechanism of the present invention for a dispensing machine; Figure 4 This is an enlarged view of the structure of the second infrared emitter of the needle-aligning mechanism in the dispensing machine according to this utility model.
[0016] Legend: The components include: 1. Dispensing machine base plate; 2. Moving column; 3. Horizontal plate frame; 4. First threaded rod; 5. Drive motor; 6. Fixing frame; 7. First infrared emitter; 8. Glue tube; 9. Clamping block; 10. Second infrared emitter; 11. Threaded block; 12. Second threaded rod; 13. Knob; 14. Moving plate; 15. Magnetic block; 16. Adjusting bolt; 17. Fastening bolt. Detailed Implementation
[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0018] Reference Figure 1-4 This utility model embodiment is used for a needle-aligning mechanism of a dispensing machine, including: a dispensing machine base plate 1, with movable columns 2 slidably fitted at both ends of the dispensing machine base plate 1, a horizontal plate frame 3 fixedly connected above the movable columns 2, a first threaded rod 4 rotatably connected inside the horizontal plate frame 3, a threaded block 11 threadedly connected to the middle of the first threaded rod 4, the threaded block 11, the movable plate 14, and the glue cylinder 8 as a whole realizing lateral movement, which facilitates the adjustment and control of the dispensing position, a second threaded rod 12 rotatably connected to the front side above the threaded block 11, and a movable plate 14 threadedly connected to the outer side of the second threaded rod 12, with a front side of the movable plate 14 provided with There is a glue cartridge 8, and a second infrared emitter 10 is set at the bottom of the glue cartridge 8. By rotating and adjusting the first infrared emitter 7, the two points of the infrared rays emitted by the first infrared emitter 7 and the second infrared emitter 10 are aligned on the surface of the glue dispensing machine base plate 1, so as to accurately control the accurate position of the glue cartridge 8 for dispensing. Then, the glue cartridge 8 can be replaced and maintained. A fixing bracket 6 is fixedly connected to one side of the threaded block 11. The first infrared emitter 7 is rotatably connected to the inner side of the end of the fixing bracket 6. When the glue cartridge 8 needs to be replaced and the accurate position of dispensing is incorrect, the first infrared emitter 7 can be used to irradiate the glue cartridge 8 to irradiate the glue cartridge 8 downwards.
[0019] A locking block 9 is fixedly connected to the front side of the movable plate 14. The inside of the locking block 9 engages with the rubber tube 8. An inlet pipe is fixedly connected to the top of the rubber tube 8. A drive motor 5 is fixedly connected to the top of the end of one side of the movable column 2. By driving the drive motor 5, the first threaded rod 4 is rotated. After rotation, it engages with the threaded block 11, thus achieving threaded movement. The drive end of the drive motor 5 is fixedly connected to the first threaded rod 4. A fastening bolt 17 is threadedly connected to the bottom of one side of the fixed frame 6. The fastening bolt 17 abuts against the first infrared emitter 7. An iron ring is fixedly connected to the outer side of the bottom of the rubber tube 8. A magnetic magnet is magnetically connected to the bottom of the iron ring. Block 15 is used to attach a second infrared emitter 10 to the bottom of the rubber tube 8. After attachment, the emitter is attracted by the magnetic block 15, and the magnetic block 15 and the second infrared emitter 10 are fixedly connected. An adjusting bolt 16 is threadedly connected to one side of the second infrared emitter 10. Rotating the adjusting bolt 16 will tighten the emitter. A knob 13 is fixedly connected to one end of the second threaded rod 12. Rotating the knob 13 will drive the second threaded rod 12 to rotate, which will engage with the moving plate 14. This allows for lateral movement of the moving plate 14 and the rubber tube 8, facilitating the adjustment operation and thus enabling accurate needle alignment.
[0020] Working principle: In use, the drive motor 5 first drives the first threaded rod 4 to rotate, which then engages with the threaded block 11, enabling threaded movement. This movement allows for lateral movement of the threaded block 11, the moving plate 14, and the glue cylinder 8 as a whole. This movement method allows for adjustment of different positions, facilitating the adjustment and control of the dispensing position. When the glue cylinder 8 needs to be replaced and the dispensing position becomes inaccurate, the first infrared emitter 7 can be used to irradiate the glue cylinder 8 downwards. A second infrared emitter 10 is then fitted onto the bottom of the glue cylinder 8, attracting it magnetically through the magnet 15. The adjusting bolt 16 is then rotated and tightened. At this point, the first infrared emitter 7 can be used to irradiate the glue cylinder 8. The rotation and adjustment of the infrared emitter 7 aligns the infrared rays emitted by the second infrared emitter 10 with the infrared rays on the surface of the dispensing machine base plate 1, thereby accurately controlling the dispensing position of the glue cartridge 8. Subsequently, the glue cartridge 8 is replaced and maintained. After maintenance, the glue cartridge 8 is installed and secured inside the locking block 9. The second infrared emitter 10 then works with the bottom of the glue cartridge 8 to emit infrared rays. Depending on whether the two points coincide on the surface of the dispensing machine base plate 1, if they do not coincide, the rotation of the knob 13 drives the second threaded rod 12 to rotate, engaging with the moving plate 14 via a threaded connection. This allows for lateral movement of the moving plate 14 and the glue cartridge 8, facilitating adjustment and ensuring accurate needle alignment.
[0021] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A counter pin mechanism for a dispensing machine, comprising: The dispensing machine base plate (1) is characterized in that both ends of the dispensing machine base plate (1) are slidably fitted with movable columns (2), and a horizontal plate frame (3) is fixedly connected above the movable columns (2). A first threaded rod (4) is rotatably connected inside the horizontal plate frame (3). A threaded block (11) is threadedly connected to the middle of the first threaded rod (4). A second threaded rod (12) is rotatably connected to the front side above the threaded block (11). A movable plate (14) is threadedly connected to the outer side of the second threaded rod (12). A glue cylinder (8) is provided on the front side of the movable plate (14). A second infrared emitter (10) is provided at the bottom end of the glue cylinder (8). A fixed frame (6) is fixedly connected to one side of the threaded block (11). A first infrared emitter (7) is rotatably connected to the inner side of the end of the fixed frame (6).
2. The needle counter mechanism for a dispensing machine of claim 1, wherein, The front side of the movable plate (14) is fixedly connected to a locking block (9), and the inside of the locking block (9) is engaged with the rubber tube (8).
3. The needle counter mechanism for a dispensing machine of claim 1, wherein, The top of the rubber tube (8) is fixedly connected to a liquid inlet pipe.
4. The needle alignment mechanism for a dispensing machine of claim 1, wherein, A drive motor (5) is fixedly connected above the end of the movable column (2) on one side, and the drive end of the drive motor (5) is fixedly connected to the first threaded rod (4).
5. The needle alignment mechanism for a dispensing machine of claim 1, wherein, The bottom of one side of the fixing frame (6) is threaded with a fastening bolt (17), which engages with the first infrared emitter (7).
6. The needle alignment mechanism for a dispensing machine of claim 1, wherein, An iron ring is fixedly connected to the outer side of the bottom end of the rubber tube (8), and a magnetic block (15) is magnetically connected to the bottom end of the iron ring. The magnetic block (15) is fixedly connected to the second infrared emitter (10).
7. The needle-adjusting mechanism for a dispensing machine according to claim 1, characterized in that, The second infrared emitter (10) has an adjusting bolt (16) threadedly connected to one side.
8. The needle alignment mechanism for a dispensing machine of claim 1, wherein, A knob (13) is fixedly connected to one end of the second threaded rod (12).