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CN-122006962-A - Double-component self-cleaning mixing adhesive dispensing device

CN122006962ACN 122006962 ACN122006962 ACN 122006962ACN-122006962-A

Abstract

The invention relates to a double-component self-cleaning mixing glue dispensing device which comprises a mixing container and a rotatable piston with a glue scraping opening at the bottom of a groove cavity or a rotary drum arranged at the bottom of the piston, wherein a stirring piece is close to the diameter of the inner cavity of the mixing container and is closely matched with the glue scraping opening to be capable of freely stretching, an elastic piece and/or a control piece are arranged on the upper end head of a stirring piece positioned in the groove cavity, a glue inlet, a cleaning opening and a glue outlet are arranged on the container, the bottom is flush during glue discharging, a clamping groove and a controllable linkage brake pad are arranged below the glue outlet, and a controllable mechanism for driving the rotary drum and/or the piston and the stirring piece to rotate and move up and down is arranged above the device. The stirring plate is suitable for various glue types, can realize uniform and rapid mixing and smooth glue application, is free to stretch out and draw back without positioning, has a self-cleaning function, can greatly reduce the adhesive liquid adhesion blocking opportunity, and has the advantages of simple structure and convenient use.

Inventors

  • LU QINGYOU
  • LU SIZHU

Assignees

  • 重庆利尔达科技开发有限公司

Dates

Publication Date
20260512
Application Date
20251222
Priority Date
20241230

Claims (10)

  1. 1. The double-component self-cleaning mixing glue-dispensing device comprises a mixing container with an outlet, a piston, a stirrer, a feeding hole and a discharging hole positioned below the piston, and is characterized in that the stirrer comprises a rotating part and an integral sheet-shaped, separated sheet-shaped or rod-shaped stirring piece which can actively or passively stretch out and draw back, the rotating part is arranged in the piston, the bottom is always flush with the piston and tightly matched with the piston and can freely rotate in the piston, the upper end of the rotating part is connected with a rotating shaft of a controllable motor, the lower end of the rotating part is provided with a glue scraping opening, a groove cavity for accommodating the stirring piece is arranged above the glue scraping opening, an elastic piece and/or a control piece is arranged on the upper end head of the stirring piece in the groove cavity, the stirring part is partially kept in the groove cavity all the time, the controllable rotating mechanism is arranged at the rear part of the piston or the piston handle part which can be connected with the telescopic mechanism, the rotating shaft is connected with the upper part of the rotating part, the width of the integral stirring piece is larger than or close to the radius of the inner cavity of the mixing container, the separating sheet-shaped or rod-shaped stirring parts are respectively positioned at different radial positions, the lower end of the stirring part is close to the bottom of the mixing container, the feeding parts of the component A and the component B which can be communicated with the batching machine are respectively arranged at the positions of the mixing container above the stirring space and/or below the piston, the bottom of the mixing container is provided with a discharge hole, and the discharge hole is provided with a controllable self-closing valve.
  2. 2. A double-component self-cleaning mixing adhesive dispensing device comprises a piston with a stirring sheet, which can be matched with a power mechanism, and a container, which is matched with the piston and is provided with a feeding pipe orifice, and is characterized in that a section of narrow opening is arranged at the lower part in the piston, a section of wide opening is arranged at the upper part, a sheet-shaped body at the lower part of the stirring sheet can tightly and freely pass through the narrow opening, the end head at the upper part of the stirring sheet is freely matched with the wide opening and can be directly or indirectly connected with a rotating mechanism, and the two ends of the wide opening and/or the narrow opening in the length direction are arc-shaped.
  3. 3. The self-cleaning mixing adhesive dispensing apparatus according to any one of claims 1 or 2, wherein the rounded inner corners of the container bottom intersecting the inner wall are of a transition configuration having the same curvature or angle as the outer chamfer of the lower end of the piston.
  4. 4. The self-cleaning mixing dispensing apparatus according to any one of claims 1 or 2, characterized in that a bearing is provided between the piston and the mixing container.
  5. 5. The self-cleaning glue mixing and dispensing device according to claim 4, wherein the thickness of the glue outlet area of the container is 0.5-2 mm.
  6. 6. The self-cleaning glue mixing device according to any one of claims 4 and 5, wherein the position of the base corresponding to the glue outlet is provided with an orifice larger than the glue outlet.
  7. 7. The difficult-to-block bi-component stirring and mixing dispensing device of claim 6, wherein a fixed ring is arranged below a flange plate at one end of a wide opening of the piston and fixedly connected with a fixed disk on the screw rod mechanism above through a connecting piece, the piston with stirring sheets is arranged in a container and can rotate and move in a telescopic way in the piston, the bottom support is positioned on the container, a boss on the bottom support is matched with a groove at the bottom of the container to form a notch, a brake pad is arranged in the notch, the bottom support is positioned below a glue outlet, an arch opening is arranged below the glue outlet, the aperture of an orifice at the top of the arch opening is 2-4 times that of the glue outlet, and the base is fixedly connected with the flange plate of the container.
  8. 8. The self-cleaning glue mixing device according to any one of claims 1,2 or 4, wherein a section of the groove cavity close to the notch is narrow and is closely and freely matched with an integral sheet-shaped, separated sheet-shaped or rod-shaped stirring piece, and the upper part is mostly wide and is matched with the upper end of the stirring piece.
  9. 9. The self-cleaning mixing extrusion apparatus of any one of claims 1, 2, 4, 5, 7, wherein the two glue inlet pipes run at an angle of 5-45 degrees to the mixing vessel in the vertical direction.
  10. 10. The self-cleaning mixing extrusion device as claimed in claim 9, wherein a cleaning tube valve is provided on the mixing vessel or on the glue inlet, and a structure cooperating with the cleaning device, in particular a telescopic cleaning agent injection and recovery filter device arranged outside the mixing vessel, is provided on the glue outlet or on the mixing vessel.

Description

Double-component self-cleaning mixing adhesive dispensing device Technical Field The invention relates to a device for mixing and sizing two components. The device is particularly suitable for intermittent small-amount glue application. Meanwhile, the adhesive is also suitable for the bi-component adhesive solution with larger viscosity, slower flow or quicker reaction. The adhesive materials are often adhered to the stirrer and the mixing container in a large amount after being mixed, and the cleaning is very troublesome. Especially reactive two-component materials, often cause equipment blockage and even rejection. The high-activity double-component adhesive consists of A, B liquid components. The two components are mixed with each other to generate curing effect through chemical reaction, so that the adhesive is one of normal-temperature hardening adhesives. The higher the temperature, the shorter the cure time. The industrial quick-drying AB glue is mainly used for dispensing operation and is completed by a dispensing machine or a glue gun through a static mixing tube. The static mixing tube consists of a positive and negative spiral structure and a tube sleeve. For a higher viscosity, slower flowing bi-component dope, 12-15 knots or longer positive and negative helical structures and sleeves are typically required. Because the static mixing tube is internally provided with dense spiral channels for cutting mixed glue solution, the tube cavity is narrow and curved, and the surface area is large. For intermittent glue discharge, enrichment of a solidified substance is easy to cause, glue discharge flow and mixing effect are influenced, and blockage is easy to cause. This problem is particularly pronounced when intermittent small amounts of frequently applied fast-reacting two-component glue solutions are used. Frequent blockage and withdrawal of static mixing pipes seriously affect the assembly line sizing operation, and the static mixing pipes are labor-consuming, time-consuming and material-consuming, and increase the cost. The frequent replacement of the static mixing tube not only affects the work efficiency and wastes the sizing material, but also has difficult bearing of tube replacement cost and also affects the environmental protection. The conventional dynamic stirrer is characterized in that a motor drives a stirring piece to mix sizing materials in a finger-sized mixing vessel. For the same reason, the stirring elements and the mixing dishes can continuously adhere and deposit some residual glue which starts to solidify with the increasing use time and frequency, and then cause blockage. In addition, the presence of the stirrer in the mixing vessel affects the use of the glue. The conventional lifting stirrer is complex in structure and high in cost, and residual glue still attached to the stirrer is not easy to clean. Although the patent application CN222093861U and the patent application CN118305036A sequentially provide a plurality of technical schemes, the technical problems are solved effectively, the injection type structure of the piston stirring rod is too large in glue outlet, the piston head is easy to adhere to glue, the service life is influenced, the operation is inconvenient, and the technical effect of the piston stirring rod is difficult to achieve due to the specific structure and positioning control limitation of the piston stirring rod, the stirring sheet, the storage notch and the glue outlet. Disclosure of Invention The invention aims to provide a double-component self-cleaning mixing glue dispensing device, wherein a stirring piece does not need to be additionally guided and positioned, so that uniform and rapid mixing of glue materials can be realized, the double-component self-cleaning glue dispensing device has self-cleaning and efficient glue dispensing functions, the risk of glue liquid adhesion and blockage can be greatly reduced, and the double-component self-cleaning glue dispensing device is simple in structure and convenient to use. The double-component self-cleaning mixing glue dispensing device comprises a mixing container with a glue outlet, a piston, a stirrer, a glue inlet and a glue outlet which are positioned below the piston, and is characterized in that the stirrer comprises a rotating part and an integral sheet-shaped, separated sheet-shaped or rod-shaped stirring piece which can actively or passively stretch out and draw back, and the width of the integral stirring piece is larger than the radius of the inner cavity of the mixing container; the lower end of the rotating part or the lower end of the piston is provided with a notch which is tightly matched with the stirring piece and can enable the stirring piece to freely stretch out and draw back, a rubber scraping opening is formed at the front end of the notch, a groove cavity for accommodating the stirring piece is formed above the notch, the stirring piece in the groove cavity is directly or indir