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CN-121972052-A - Raw material mixing device for adhesive tape production

CN121972052ACN 121972052 ACN121972052 ACN 121972052ACN-121972052-A

Abstract

The invention discloses a raw material mixing device for adhesive tape production, which relates to the technical field of mixing equipment, and comprises a mixing drum, wherein an outer stirring frame and an inner stirring frame are rotatably arranged in the mixing drum, the inner stirring frame is arranged in the outer stirring frame, a reciprocating mechanism and a rotating mechanism are arranged at the upper end of the mixing drum, the rotating mechanism comprises a top surface gear, a bottom surface gear and a supporting gear, the reciprocating mechanism comprises a driving gear, a linkage gear, a driven gear and a half-surface gear, the reciprocating mechanism is used for driving the outer stirring frame and the inner stirring frame to synchronously rotate in a periodical angular direction along the same circumferential direction, the rotating mechanism is used for driving the outer stirring frame and the inner stirring frame to perform mutually opposite uniform rotation motion around the same axis, and the problems of low mixing dead angle formation, low high-viscosity material mixing efficiency, difficult coordination of macroscopic convection and microscopic dispersion and uneven micro component dispersion caused by adopting a single rotation mode in the conventional mixing device are solved.

Inventors

  • NIE NING
  • CHEN XIANGJIE
  • CHEN WEIJIANG

Assignees

  • 兴国宝丽金胶粘制品有限公司

Dates

Publication Date
20260505
Application Date
20260310

Claims (10)

  1. 1. The raw material mixing device for producing the adhesive tape comprises a mixing drum (1) and is characterized in that an outer stirring frame (2) and an inner stirring frame (3) are rotatably arranged in the mixing drum (1), and the inner stirring frame (3) is arranged in the outer stirring frame (2); the upper end of the mixing drum (1) is provided with a reciprocating mechanism (4) and a rotating mechanism (5), the reciprocating mechanism (4) is used for driving the outer stirring frame (2) and the inner stirring frame (3) to synchronously and periodically rotate in an angular direction along the same circumferential direction, and the rotating mechanism (5) is used for driving the outer stirring frame (2) and the inner stirring frame (3) to do opposite uniform rotation motion around the same axis.
  2. 2. The raw material mixing device for producing the adhesive tape according to claim 1, wherein a feed inlet and a discharge outlet are respectively formed in the upper end and the lower end of the mixing cylinder (1), a feed door (11) is arranged at the feed inlet at the upper end of the mixing cylinder (1), and a discharge door (12) is arranged at the feed inlet and the discharge outlet at the lower end of the mixing cylinder (1).
  3. 3. The raw material mixing device for producing adhesive tapes according to claim 2, wherein an outer cover (13) is fixedly arranged at the upper end of the mixing drum (1), the reciprocating mechanism (4) and the rotating mechanism (5) are both arranged in the outer cover (13), and the reciprocating mechanism (4) is positioned above the rotating mechanism (5).
  4. 4. The raw material mixing device for producing adhesive tape according to claim 3, wherein the reciprocating mechanism (4) comprises a driving gear (41), a linkage gear (42), a driven gear (43) and a half-face gear (44), wherein the driving gear (41) and the driven gear (43) are rotatably mounted on the central axis of the outer housing (13), and the driving gear (41) is positioned at the upper end of the driven gear (43); The two linkage gears (42) and the two half-face gears (44) are respectively arranged, the linkage gears (42) and the half-face gears (44) are respectively rotatably arranged in the outer housing (13), the two linkage gears (42) are respectively meshed with the two sides of the driving gear (41), the two half-face gears (44) are respectively meshed with the two sides of the driven gear (43), and the linkage gears (42) and the half-face gears (44) which are positioned on the same side are coaxially connected.
  5. 5. The raw material mixing device for producing adhesive tape according to claim 4, wherein the rotating mechanism (5) comprises a top surface gear (51), a bottom surface gear (52) and a supporting gear (53), wherein the top surface gear (51), the bottom surface gear (52) and the supporting gear (53) are all arranged as bevel gears, the top surface gear (51) and the bottom surface gear (52) are rotationally and symmetrically arranged in the outer housing (13), the top surface gear (51) is positioned above the bottom surface gear (52), the supporting gear (53) is arranged in a plurality, and the supporting gears (53) are meshed between the top surface gear (51) and the bottom surface gear (52) in an annular array.
  6. 6. The raw material mixing device for producing adhesive tape according to claim 5, wherein the driven gear (43) is coaxially connected with the top gear (51), and the driven gear (43) rotates to drive the top gear (51) to synchronously rotate.
  7. 7. The raw material mixing device for producing adhesive tape according to claim 6, wherein the outer stirring frame (2) comprises a main shaft (21), a first stirring frame (22) and a sleeve ring (23), the main shaft (21) is rotatably arranged in the mixing drum (1), the upper end of the main shaft (21) penetrates through the bottom surface gear (52) and is fixedly connected to the lower end of the top surface gear (51), one end of the first stirring frame (22) is fixedly connected to the lower end of the main shaft (21), the sleeve ring (23) is fixedly connected to the other end of the first stirring frame (22), and the sleeve ring (23) is sleeved on the main shaft (21).
  8. 8. The raw material mixing device for producing adhesive tapes according to claim 7, wherein the inner stirring frame (3) comprises a sleeve (31), a second stirring frame (32) and a supporting disc (33), the sleeve (31) is sleeved on the outer side wall of the main shaft (21), one side of the second stirring frame (32) is fixedly connected to the outer side wall of the sleeve (31), the supporting disc (33) is fixedly sleeved on the outer side of the sleeve (31), the supporting disc (33) is positioned above the second stirring frame (32), and the upper end of the sleeve (31) penetrates through the upper end of the mixing drum (1) and is fixedly connected to the lower end of the bottom surface gear (52).
  9. 9. The raw material mixing device for producing adhesive tape according to claim 8, wherein the collar (23) is sleeved on the outer side wall of the sleeve (31), the supporting plate (33) is used for supporting the collar (23), and a plurality of rollers (231) for stabilizing the collar (23) to rotate are rotatably arranged in an annular array in the collar (23).
  10. 10. The raw material mixing device for producing the adhesive tape according to claim 9, wherein the bracket (6) is fixedly arranged at the lower end of the inside of the mixing drum (1), and the lower end of the main shaft (21) is rotatably inserted into the upper end of the bracket (6).

Description

Raw material mixing device for adhesive tape production Technical Field The invention relates to the technical field related to mixing equipment, in particular to a raw material mixing device for adhesive tape production. Background In the tape production process, raw material mixing is a key step in determining adhesive properties. The mixing device commonly adopted in the industry at present has a core structure comprising a mixing drum and a mechanical stirring system arranged in the drum. The stirring system is generally composed of a driving motor, a main shaft and stirring paddles arranged on the main shaft, and a wall scraping mechanism is additionally arranged on the stirring shaft by part of the improved equipment. The basic working flow is that after the adhesive matrix, tackifying resin, filler and various auxiliary agents are put into a mixing drum, a motor is started to drive a stirring shaft to do uniform rotation motion, and the primary mixing and dispersion of materials are realized through the shearing action of paddles and the induced fluid circulation. The device using single rotation as a basic movement mode has simple structure and convenient control, and becomes basic equipment for mixing raw materials of the adhesive tape. However, such mixing devices based on uniform rotation have significant technical drawbacks. Firstly, a fixed rotating flow field can form a specific flow mode in the mixing drum, so that mixing dead angles are easily generated near the drum wall, at the bottom corners and between adjacent blades, high-viscosity materials are easily detained in the areas, and macroscopic mixing is uneven. Secondly, for an adhesive system with non-Newtonian characteristics, the single rotation shearing efficiency is low, the material is easy to slip along with the integral rotation of the blade, the effective shearing area is limited, the energy consumption is high, and the mixing effect is poor. Furthermore, although the wall scraping mechanism can remove wall-sticking materials, the continuous friction between the wall scraping mechanism and the cylinder wall can lead to part abrasion and local temperature rise, and the deep exchange between the wall materials and the main body materials cannot be promoted. Most importantly, the prior device is difficult to coordinate the contradiction between macroscopic convection and microscopic dispersion, namely, the centrifugal separation of components with different specific gravities is easy to occur when the rotation speed is increased, the delamination is avoided when the rotation speed is reduced, the powder aggregate cannot be effectively broken, and the uniform dispersion of trace auxiliaries is particularly difficult. These problems seriously affect the quality stability and production efficiency of the tape product. Accordingly, in order to solve the above-mentioned problems, a raw material mixing device for producing an adhesive tape is now provided. Disclosure of Invention The invention aims to provide a raw material mixing device for adhesive tape production, which aims to solve the problems that in the prior art, the existing mixing device adopts a single rotation mode to cause the formation of a mixing dead angle, the mixing efficiency of high-viscosity materials is low, the coordination of macroscopic convection and microscopic dispersion is difficult, and the dispersion of micro components is uneven. The raw material mixing device for producing the adhesive tape comprises a mixing cylinder, wherein an outer stirring frame and an inner stirring frame are rotatably arranged in the mixing cylinder, and the inner stirring frame is arranged in the outer stirring frame; The upper end of the mixing drum is provided with a reciprocating mechanism and a rotating mechanism, the reciprocating mechanism is used for driving the outer stirring frame and the inner stirring frame to synchronously and periodically rotate in an angular direction along the same circumferential direction, and the rotating mechanism is used for driving the outer stirring frame and the inner stirring frame to perform opposite uniform rotation motion around the same axis. In a further embodiment, the upper end and the lower end of the mixing cylinder are respectively provided with a feed inlet and a discharge outlet, the feed inlet at the upper end of the mixing cylinder is provided with a feed door, and the discharge inlet at the lower end of the mixing cylinder is provided with a discharge door. In a further embodiment, the upper end of the mixing drum is fixedly provided with an outer housing, the reciprocating mechanism and the rotating mechanism are both arranged inside the outer housing, and the reciprocating mechanism is positioned above the rotating mechanism. In a further embodiment, the reciprocating mechanism comprises a driving gear, a linkage gear, a driven gear and a half-face gear, wherein the driving gear and the driven gear are both rotatably arrang