Hot melt adhesive dispensing machine
Patent Information
- Application Number
- CN202522540072.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-29
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-29
AI Technical Summary
[0002]根据生产需求，目前需要将热熔胶定量分装在胶筒内，需要同时满足占用空间小、效率高以及精度高的需求，以往采用加压推料装置配合装夹组件实现分装功能，其中装夹组件中采用定量调节电机来实现定量灌装，该方式的误差范围无法满足本设计需求，因此还需进行改进
[0012]本设计通过将胶筒的下端接入换向接头上并通过胶筒定位座定位，出胶阀内设有加热器，通过加热插头接电使得加热器工作对出胶阀加热到设定温度，热熔胶经过出胶阀后通过换向接头将热熔胶灌入胶筒内，超声波探头位于胶筒的上方可以实时检测到胶筒内灌胶液面高度，在调试阶段利用超声波探头进行检测，从而可以提高灌胶精度，保证胶筒的灌胶量达到要求标准，并且本设计整体结构简单，占用空间小，实际灌胶操作时，胶筒取放方便，工作效率高。
Smart Images
Figure CN224829976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glue dispensing device technology, and in particular to a hot melt adhesive dispensing machine. Background Technology
[0002] Based on production needs, hot melt adhesive needs to be quantitatively dispensed into glue tubes. This requires simultaneously meeting the requirements of small footprint, high efficiency, and high precision. Previously, a pressure pushing device was used in conjunction with a clamping assembly to achieve the dispensing function. The clamping assembly used a quantitative adjustment motor to achieve quantitative filling. However, the error range of this method cannot meet the requirements of this design, so improvements are needed. Utility Model Content
[0003] The purpose of this invention is to provide a hot melt adhesive dispensing machine to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A hot melt adhesive dispensing machine includes a mounting base and a glue cartridge clamping device and a dispensing valve device, which are mounted on the mounting base from the left and right. The glue cartridge clamping device includes a stand, an ultrasonic testing component, and a glue cartridge positioning seat. The stand is fixed on the mounting base. The ultrasonic testing component includes a connecting seat and an ultrasonic probe. The connecting seat is mounted on the stand with its position adjustable vertically. The ultrasonic probe is mounted on the connecting seat with its testing head facing downwards. The glue cartridge positioning seat is mounted on the stand with its position adjustable vertically and is located below the ultrasonic testing component. A glue cartridge positioning groove is provided on the front side of the glue cartridge positioning seat. The dispensing valve device includes a clamp, a dispensing valve, and a reversing connector. The dispensing valve is fixed on the mounting base by the clamp. A heater is provided inside the dispensing valve. A heating plug is connected to the dispensing valve. One end of the reversing connector is connected to the dispensing connector of the dispensing valve, and the other end is positioned upwards and directly below the glue cartridge positioning groove.
[0006] In a further description of this utility model, the support frame is an upright aluminum profile; the front side of the aluminum profile has two vertically arranged sliding grooves distributed on the left and right.
[0007] In a further description of this utility model, a first slider is mounted on the connecting seat by a first screw; the first slider is slidably connected in a groove; an adjusting knob is also mounted on the connecting seat; the adjusting knob is threadedly connected to the connecting seat and its end abuts against the upright.
[0008] In a further description of this utility model, the rubber tube positioning seat is equipped with a second slider by a second screw; the second slider is slidably connected in the groove.
[0009] As further described in this utility model, a material sensor is installed on the top of the rubber cylinder positioning seat.
[0010] In a further description of the present invention, the dispensing valve device further includes a protective cover; the protective cover is disposed on the outside of the dispensing valve and fixed on the mounting base; the left side of the protective cover is provided with a first clearance opening for the dispensing connector of the dispensing valve to extend out; the rear side of the protective cover is provided with a second clearance opening for the dispensing connector of the dispensing valve and the heating plug to extend out.
[0011] The beneficial effects of this utility model are as follows:
[0012] This design connects the lower end of the glue cartridge to a reversing connector and positions it via a cartridge positioning seat. A heater is installed inside the dispensing valve; power is supplied via a heating plug to heat the dispensing valve to the set temperature. Hot melt adhesive passes through the dispensing valve and is then poured into the glue cartridge via the reversing connector. An ultrasonic probe positioned above the glue cartridge can monitor the glue level in real time. During the commissioning phase, the ultrasonic probe is used for testing, thereby improving dispensing accuracy and ensuring the glue cartridge delivers the required amount. Furthermore, this design has a simple overall structure, occupies little space, and allows for convenient loading and unloading of the glue cartridge during actual dispensing operations, resulting in high work efficiency. Attached Figure Description
[0013] Figure 1 This is an overall structural diagram of the present invention;
[0014] Figure 2 This is an overall structural diagram of the present invention after it is loaded into the rubber tube;
[0015] Figure 3 This is a partial structural diagram of the glue dispensing valve device of this utility model. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings:
[0017] like Figure 1-3As shown, a hot melt adhesive dispensing machine includes a mounting base 1 and a glue cartridge clamping device 2 and a glue dispensing valve device 3, which are mounted on the mounting base 1 from the left and right. The glue cartridge clamping device 2 includes a stand 21, an ultrasonic testing component 22, and a glue cartridge positioning seat 23. The stand 21 is fixed on the mounting base 1. The ultrasonic testing component 22 includes a connecting seat 221 and an ultrasonic probe 222. The connecting seat 221 is mounted on the stand 21 with its position adjustable up and down. The ultrasonic probe 222 is mounted on the connecting seat 221 with its detection head facing downwards. The glue cartridge positioning seat 23 is mounted on the stand 21 with its position adjustable up and down and is located below the ultrasonic testing component 22. The glue cartridge positioning seat 23 has a glue cartridge positioning groove 231 on its front side. The glue dispensing valve device 3 includes a clamp 31, a glue dispensing valve 32, and a reversing connector 33. The glue dispensing valve 32 is fixed on the mounting base 1 by the clamp 31. A heater is provided inside the glue dispensing valve 32. A heating plug 321 is connected to the glue valve 32; one end of the reversing connector 33 is connected to the glue outlet connector 322 of the glue valve 32, and the other end is set upward and located directly below the glue cartridge positioning groove 231; this design connects the lower end of the glue cartridge 100 to the reversing connector 33 and positions it through the glue cartridge positioning seat 23. The glue valve 32 is equipped with a heater. The heater is powered by the heating plug 321 to heat the glue valve 32 to the set temperature. After the hot melt glue passes through the glue valve 32, it is poured into the glue cartridge 100 through the reversing connector 33. The ultrasonic probe 222 is located above the glue cartridge 100 and can detect the glue level in the glue cartridge 100 in real time. During the debugging stage, the ultrasonic probe 222 is used for detection, which can improve the glue filling accuracy and ensure that the glue filling amount of the glue cartridge 100 meets the required standard. In addition, the overall structure of this design is simple, occupies little space, and the glue cartridge 100 is easy to pick up and put down during actual glue filling operation, resulting in high work efficiency.
[0018] The support frame 21 is an upright aluminum profile; the front side of the aluminum profile is formed with two vertically arranged sliding grooves 211, which are distributed on the left and right. The sliding grooves 211 are inverted T-shaped to facilitate the installation of the connecting seat 221 and the positioning seat.
[0019] A first slider is mounted on the connecting seat 221 by a first screw 2211; the first slider is slidably connected in the slide groove 211; an adjustment knob 2212 is also mounted on the connecting seat 221; the adjustment knob 2212 is threadedly connected to the connecting seat 221 and its end abuts against the stand 21. The first screw 2211 is not tightened and serves as a limit. The height of the connecting seat 221 can be adjusted by loosening the adjustment knob 2212. After adjusting to a suitable height, the adjustment knob 2212 is tightened to lock it.
[0020] The rubber tube positioning seat 23 is equipped with a second slider by a second screw; the second slider is slidably connected in the slide groove 211. After loosening the second screw, the height of the positioning seat can be adjusted. After adjustment, the second screw can be tightened.
[0021] A material sensor 232 is installed on the top of the glue cylinder positioning seat 23. The material sensor 232 is used to sense whether there is a material cylinder at the position of the glue cylinder positioning seat 23. If a material cylinder is placed in, a quantitative glue dispensing operation is performed.
[0022] The dispensing valve device 3 also includes a protective cover 34; the protective cover 34 covers the outside of the dispensing valve 32 and is fixed on the mounting base 1; the left side of the protective cover 34 is provided with a first clearance opening 341 for the dispensing connector 322 of the dispensing valve 32 to extend out; the rear side of the protective cover 34 is provided with a second clearance opening for the dispensing connector 322 of the dispensing valve 32 and the heating plug 321 to extend out, which serves as a protective function.
[0023] The following are the steps for the production commissioning phase:
[0024] 1. Load an empty glue cartridge 100 into the glue cartridge clamping device 2, and manually dispense the glue to the qualified amount.
[0025] 2. Check and read the current distance value of the ultrasonic probe 222; adjust the height of the ultrasonic probe 222 so that the detection value is between 70-80 mm (the reading is more accurate when it is between 70 and 80 mm).
[0026] 3. After adjusting to the appropriate values, set the glue-filling completion position to: current position + 3 mm. (3 mm is for buffering).
[0027] 4. Set the stopping position to: completion position + 4 mm. (Slow down the dispensing of adhesive when reaching this position).
[0028] 5. Set valve closing time: 300 ms, valve opening time: 100 ms. (The shorter the valve opening time, the slower the dispensing speed.)
[0029] 6. Perform continuous automatic metering dispensing using multiple dispensing cartridges (100 cartridges recommended, 5-6 cartridges suggested). Test the metering stability and accuracy, and check the consistency and quality of the liquid level. Fine-tune the metering height value as needed. (A higher value results in a lower liquid level; adjust accordingly based on the liquid level.)
[0030] 7. After testing and confirming the stability of quantitative dispensing, save the parameters. Using these parameters in the future will enable high-precision quantitative dispensing.
[0031] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.
Claims
1. A hot melt adhesive dispensing machine, characterized in that: The device includes a mounting base and a glue cartridge clamping device and a glue dispensing valve device, which are mounted on the mounting base from the left and right. The glue cartridge clamping device includes a stand, an ultrasonic testing component, and a glue cartridge positioning seat. The stand is fixed to the mounting base. The ultrasonic testing component includes a connecting seat and an ultrasonic probe. The connecting seat is mounted on the stand with its position adjustable vertically. The ultrasonic probe is mounted on the connecting seat with the testing head facing downwards. The glue cartridge positioning seat is mounted on the stand with its position adjustable vertically and is located below the ultrasonic testing component. The front side of the glue cartridge positioning seat has a glue cartridge positioning groove. The glue dispensing valve device includes a clamp, a glue dispensing valve, and a reversing connector. The glue dispensing valve is fixed to the mounting base by the clamp and the glue dispensing connector is positioned to the left. The glue dispensing valve has a heater inside. A heating plug is connected to the glue dispensing valve. One end of the reversing connector is connected to the glue dispensing connector of the glue dispensing valve, and the other end is positioned upwards and directly below the glue cartridge positioning groove.
2. The hot melt adhesive dispensing machine according to claim 1, characterized in that: The support frame is an upright aluminum profile; the front side of the aluminum profile has two vertically arranged sliding grooves distributed on the left and right.
3. A hot melt adhesive dispensing machine according to claim 2, characterized in that: A first slider is mounted on the connecting seat by a first screw; the first slider is slidably connected in the groove; an adjustment knob is also mounted on the connecting seat; the adjustment knob is threadedly connected to the connecting seat and its end abuts against the upright.
4. A hot melt adhesive dispensing machine according to claim 2, characterized in that: The rubber tube positioning seat is equipped with a second slider by a second screw; the second slider is slidably connected in the groove.
5. A hot melt adhesive dispensing machine according to claim 1, characterized in that: A material sensor is installed on the top of the rubber tube positioning seat.
6. A hot melt adhesive dispensing machine according to claim 1, characterized in that: The dispensing valve device also includes a protective cover; the protective cover is installed on the outside of the dispensing valve and fixed on the mounting base; the left side of the protective cover is provided with a first clearance opening for the dispensing connector of the dispensing valve to extend out; the rear side of the protective cover is provided with a second clearance opening for the dispensing connector of the dispensing valve and the heating plug to extend out.