Substrate film transport and set smoke evacuation system

Abstract

A kind of substrate film conveying and setting smoke exhaust system is equipped with conveying subsystem, setting smoke exhaust subsystem;Setting smoke exhaust subsystem can heat substrate film and suck harmful gas generated;These harmful gases are guided to filter box and filtered before being discharged, so as to avoid harm to human body;Conveying subsystem limits substrate film on the web with negative pressure adsorption, so as to ensure that substrate film passes through the heating area of setting smoke exhaust subsystem evenly and at a constant speed, so as to ensure that hot-melt adhesive powder is uniformly heated and melted into shape, and further ensure the final quality of heat transfer printing film.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder shaking machines, and particularly relates to a base material film conveying and shaping smoke exhaust system. BACKGROUND

[0002] The working principle of thermal transfer printing is that a digital pattern is printed on a special transfer paper by a printer with special transfer ink, and then the pattern is accurately transferred to the surface of a product by a special transfer machine under high temperature and high pressure to complete the product printing. As can be seen, the pattern quality of the special thermal transfer paper directly determines the final pattern quality of the entire thermal transfer printing. In the field of industrial thermal transfer printing, the special thermal transfer paper for thermal transfer printing is a roll of base material film. Before the special transfer ink is printed on the base material film, a release agent needs to be printed first to facilitate the subsequent separation of the ink and the base material film. After the special transfer ink is printed on the base material film, a layer of hot melt adhesive layer needs to be printed again to ensure that the pattern printed by the special transfer ink can be stably retained on the base material film. The hot melt adhesive layer is usually formed by a powder shaking machine. The hot melt adhesive powder is uniformly shaken onto the base material film at the front end of the powder shaking machine. The base material film is heated at the rear end of the powder shaking machine to melt the hot melt adhesive powder and form a hot melt adhesive layer. However, two difficulties need to be overcome when heating the base material film to form the hot melt adhesive layer: 1. The base material film, even if it is attached with ink and hot melt adhesive powder, is a light-weight object, and it is difficult to ensure that it can uniformly and stably pass through the heating area to uniformly heat the hot melt adhesive powder; 2. The ink and release agent in a mixed state on the base material film will also emit harmful gases when heated, causing damage to the human body. SUMMARY

[0003] The purpose of the present application is to solve the above problems, and provide a base material film conveying and shaping smoke exhaust system.

[0004] The technical solution of the present application is: a base material film conveying and shaping smoke exhaust system comprises a conveying subsystem and a shaping smoke exhaust subsystem.

[0005] The shaping smoke exhaust subsystem comprises a shaping smoke exhaust top cover arranged above a rack, a smoke exhaust pipe arranged in the rack and corresponding to the shaping smoke exhaust top cover, and a filter box in communication with the smoke exhaust pipe; the conveying subsystem is arranged below the shaping smoke exhaust top cover and connected to the rack, and comprises a mesh belt with a conveying direction passing below the shaping smoke exhaust top cover, a film suction box arranged in front of and behind the mesh belt and tightly attached to the mesh belt, and a fan with an input end in communication with the film suction box.

[0006] A lower surface of the shaping smoke exhaust top cover is provided with a heating cavity corresponding to the width of the mesh belt; a plurality of heating lamp tubes are uniformly arranged in the heating cavity and perpendicular to the conveying direction of the mesh belt; a plurality of closed smoke suction holes are arranged in the middle of the heating cavity; a smoke suction cavity is arranged above the heating cavity and in communication with the heating cavity through the smoke suction holes; the smoke suction cavity is provided with a smoke exhaust port corresponding to and matched with the smoke exhaust pipe; the smoke exhaust pipe is in communication with the bottom of the filter box through a pipeline; and the filter box is provided with a suction fan; an input end of the suction fan is in communication with the filter box, and an output end of the suction fan is in communication with the outside of the rack.

[0007] The upper surface of the film suction box is uniformly provided with a plurality of film suction holes corresponding to the area of the mesh belt; and the output end of the fan is in communication with the outer frame.

[0008] Preferably, the front end of the fixed-shape smoke exhaust top cover is connected with a front smoke baffle, and the rear end is provided with a rear smoke baffle; the positions of the front and rear smoke baffles correspond to the heating cavity.

[0009] Preferably, the rear end of the fixed-shape smoke exhaust top cover is provided with a hinge connected with the frame; and the rear part of the fixed-shape smoke exhaust top cover is provided with a gas spring mechanism.

[0010] Preferably, the rear smoke baffle is rotationally connected with the frame.

[0011] Preferably, the lower surface of the front end of the fixed-shape smoke exhaust top cover is uniformly provided with a plurality of cooling fans arranged obliquely along the width direction of the mesh belt.

[0012] Preferably, the heating cavity is provided with a protective net.

[0013] Preferably, the heating cavity is provided with a temperature probe protruding out of the heating cavity.

[0014] Preferably, the front and rear ends of the mesh belt are respectively connected with a driving roller and a passive roller; and the driving roller is connected with a driving motor through a transmission.

[0015] Preferably, the smoke exhaust pipe is symmetrically arranged about the mesh belt; and the two ends of the film suction box are in communication with the input end of the fan.

[0016] Preferably, the upper surface of the film suction box is provided with a convex shell; and the film suction holes are uniformly arranged on the upper surface of the convex shell.

[0017] The substrate film conveying and fixed-shape smoke exhaust system has the following advantages: the system is provided with a conveying subsystem and a fixed-shape smoke exhaust subsystem; the fixed-shape smoke exhaust subsystem can heat the substrate film and suck harmful gases generated; the harmful gases are guided into the filter box for filtration and then discharged, thereby avoiding harm to human body; the conveying subsystem limits the substrate film on the mesh belt in a negative pressure adsorption manner, thereby ensuring that the substrate film passes through the heating area of the fixed-shape smoke exhaust subsystem smoothly and evenly, ensuring that the hot melt glue powder is uniformly heated and melted to form, and further ensuring the final quality of the heat transfer printing film. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a side view of the substrate film conveying and fixed-shape smoke exhaust system of the present application;

[0019] Figure 2 is Figure 1 A-A sectional view of

[0020] Figure 3 is a connection diagram of the present application after the frame is removed Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the connection after the frame of the present invention has been removed. Figure 2 ;

[0022] Figure 5 It is a three-dimensional view of the shaped smoke exhaust cover;

[0023] Figure 6 yes Figure 5 A top-view partial sectional view;

[0024] Figure 7 yes Figure 6 BB cross-sectional view;

[0025] Figure 8 It is a 3D diagram showing the removal of the protective netting from the shaped smoke exhaust cover;

[0026] Figure 9 This is a connection diagram of the mesh belt, suction box, drive roller, passive roller, and drive motor;

[0027] Figure 10 yes Figure 9 A top-view partial sectional view;

[0028] Figure 11 yes Figure 10 CC section view;

[0029] In the diagram: 01. Frame, 02. Substrate film, 11. Shaping exhaust cover, 111. Heating chamber, 1111. Heating lamp, 1112. Smoke extraction port, 1113. Protective net, 1114. Temperature probe, 112. Smoke extraction chamber, 1121. Exhaust port, 12. Exhaust pipe, 13. Filter box, 131. Fan, 14. Front smoke baffle, 15. Rear smoke baffle, 16. Hinge, 17. Gas spring mechanism, 18. Cooling fan, 21. Mesh belt, 211. Passive roller, 212. Drive roller, 213. Drive motor, 22. Suction box, 221. Suction hole, 222. Convex shell, 23. Fan.

[0030] by Figure 3 , Figure 4 The main pipelines are all connected by flexible tubing; however, to clearly define the direction of the gas path, this invention uses rigid tubing.

[0031] Figure 7 , Figure 9 The direction of the middle arrow indicates the direction of the flow of smoke or air. Detailed Implementation

[0032] Example: See Figures 1-11 A substrate film conveying and shaping smoke exhaust system includes a conveying subsystem and a shaping smoke exhaust subsystem;

[0033] The system comprises a top cover arranged above the frame, a smoke exhaust pipe arranged in the frame and corresponding to the top cover, and a filter box communicated with the smoke exhaust pipe; the conveying system is arranged below the top cover and connected with the frame, and comprises a mesh belt, a suction box arranged below the mesh belt and corresponding to the top cover, and a fan communicated with the suction box; the top cover is used for heating the base material film conveyed by the conveying system, melting the hot melt powder into a hot melt layer, and absorbing harmful gas generated by the ink and the release agent; the harmful gas is sucked into the filter box through the smoke exhaust pipe and filtered; the conveying system ensures that the base material film passes through the heating area below the top cover at a constant speed, so that the base material film can be uniformly heated and the film quality of the hot melt powder is ensured; the base material film is light and smooth even if it carries the ink and the release agent; in order to ensure the film quality of the hot melt powder, the base material film is limited in a certain way by negative pressure adsorption, so that the base material film can pass through the heating area at a constant speed; the suction box is the execution part of the negative pressure adsorption, the mesh of the mesh belt provides a channel for the negative pressure adsorption, and the fan is the power source of the negative pressure adsorption; meanwhile, the base material film separates the harmful gas generated on the upper surface of the base material film from the suction box, and the harmful gas generated on the upper surface of the base material film is more easily absorbed by the top cover due to heating.

[0034] A heating cavity corresponding to the width of the mesh belt is arranged on the lower surface of the top cover; a plurality of heating lamp tubes are uniformly arranged in the heating cavity and perpendicular to the conveying direction of the mesh belt; the heating lamp tubes release radiant heat energy to the base material film; a plurality of closed smoke suction holes are arranged in the middle of the heating cavity; a smoke suction cavity communicated with the heating cavity through the smoke suction holes is arranged above the heating cavity; the harmful gas enters the smoke suction cavity through the smoke suction holes; the smoke suction cavity is provided with a smoke exhaust port corresponding to the smoke exhaust pipe; the smoke exhaust pipe is communicated with the bottom of the filter box through a pipeline; the harmful gas enters the filter box from the bottom of the filter box in sequence through the smoke exhaust port and the smoke exhaust pipe; an air suction fan is arranged on the top of the filter box; the input end of the air suction fan is communicated with the filter box, and the output end is communicated with the outside of the frame; the air suction fan provides a power source for sucking the harmful gas; the sucked harmful gas is filtered in the filter box, the harmful components fall to the bottom of the filter box, and the clean components are discharged outside the frame through the air suction fan; the air suction fan is arranged on the top of the filter box to avoid the solid components of the harmful components from entering the air suction fan and causing damage; the internal structure of the filter box is a mature technical solution in the prior art, and will not be described herein;

[0035] A plurality of suction holes are uniformly arranged on the upper surface of the suction box and corresponding to the mesh belt; the arrangement area of the suction holes limits the action area of the suction box in adsorbing the base material film; the output end of the fan is communicated with the outside of the frame, so that the air flow of the suction box is completed, and the base material film is adsorbed by the suction box.

[0036] The front end of the shaped smoke exhaust top cover is connected with a front smoke baffle plate, and the rear end is provided with a rear smoke baffle plate; the positions of the front and rear smoke baffle plates correspond to the heating cavity, and the left and right sides of the heating area of the shaped smoke exhaust top cover are closed from the front and rear sides; and the left and right sides are closed by the structure of the rack itself; in this way, the overflow of harmful gas generated in the heating area of the shaped smoke exhaust top cover can be avoided, and the smoke absorption effect of the shaped smoke exhaust top cover is increased.

[0037] The rear end of the shaped smoke exhaust top cover is provided with a hinge connected with the rack; the rear part of the shaped smoke exhaust top cover is provided with a gas spring mechanism connected with the rack; because the base material film is too thin and light, it is very difficult to directly insert the base material film into the gap between the shaped smoke exhaust top cover and the mesh belt; through the above structure, the gas spring mechanism lifts the shaped smoke exhaust top cover, and the base material film only needs to pass a relatively short distance to be arranged relatively easily.

[0038] The rear smoke baffle plate is rotationally connected with the rack, so that the connection relationship between the base material film and the mesh belt is more convenient to arrange.

[0039] The front end of the shaped smoke exhaust top cover is provided with a plurality of inclined cooling fans on the lower surface along the width direction of the mesh belt, which are used for cooling the heated base material film and accelerating the shaping of the hot melt adhesive layer.

[0040] The heating cavity is provided with a protective net at the cavity opening, so as to avoid the base material film from being excessively heated when entering the heating cavity.

[0041] A temperature probe is arranged in the heating cavity and protrudes out of the heating cavity to monitor the heating temperature of the base material film.

[0042] The front and rear ends of the mesh belt are respectively connected with a driving roller and a passive roller; the driving roller is connected with a driving motor through a transmission connection; the driving motor drives the driving roller and the passive roller to drive the mesh belt to rotate, so that the base material film moves at a constant speed.

[0043] The smoke exhaust pipe is symmetrically arranged about the mesh belt; because the harmful gas itself has a temperature, the symmetrically arranged smoke exhaust pipe can uniformly disperse the temperature carried by the harmful gas, so as to avoid the damage of the rack due to uneven heating; the both ends of the film suction box are communicated with the input end of the fan, so that the negative pressure film suction of the film suction box is more uniform.

[0044] The upper surface of the film suction box is provided with a convex shell; the film suction holes are uniformly arranged on the upper surface of the convex shell; in this way, the friction area between the film suction box and the mesh belt can be reduced.

[0045] The working process of the embodiment is as follows: the driving motor is started, the base material film is moved through the driving roller, the passive roller and the mesh belt; the mesh belt is full of meshes; the film suction box below the web surface on the mesh belt generates a part of negative pressure adsorption of the base material film through the meshes on the mesh belt, so that the base material film is tightly attached to the mesh belt and moves together with the mesh belt;

[0046] Moving to the area below the heating chamber, the substrate film is radiated with heat from the heating lamp; the hot melt adhesive powder melts to form a hot melt adhesive film; the ink and release agent produce harmful gases; due to the insulation provided by the substrate film, the front baffle, the rear baffle, and the sides of the frame, as well as the characteristic of harmful gases rising when heated, the harmful gases are drawn into the smoke chamber; the power for the smoke chamber comes from the suction fan; these harmful gases enter the smoke chamber sequentially through the protective net and the smoke inlet; the harmful gases in the smoke chamber continue to be acted upon by the fan and enter the bottom of the filter box from the left and right sides through the exhaust port and exhaust pipe; inside the filter box, the harmful gases are filtered and finally discharged from the machine body by the fan.

Claims

1. A substrate film conveying and shaping smoke exhaust system, characterized in that, Includes a conveying subsystem and a shaping smoke exhaust subsystem; The shaping and exhaust subsystem includes a shaping and exhaust top cover located above the frame, an exhaust pipe located inside the frame corresponding to the shaping and exhaust top cover, and a filter box connected to the exhaust pipe; the conveying subsystem is located below the shaping and exhaust top cover and connected to the frame, including a conveyor belt that passes through the area below the shaping and exhaust top cover, a film suction box located below and close to the front and back of the upper surface of the conveyor belt, and a fan whose input end is connected to the film suction box; The lower surface of the shaped exhaust cover is provided with a heating chamber corresponding to the width of the mesh belt; several heating lamps are evenly distributed in the heating chamber perpendicular to the conveying direction of the mesh belt; several sealed smoke holes are provided in the middle of the heating chamber; a smoke chamber is provided above the heating chamber through the smoke holes and connected to the heating chamber; the smoke chamber is provided with a smoke exhaust port that matches the exhaust pipe; the exhaust pipe is connected to the bottom of the filter box through a pipeline; a suction fan is provided on the top of the filter box; the input end of the suction fan is connected to the filter box, and the output end is connected to the outside of the frame. The upper surface of the suction box has several suction holes evenly distributed in the area corresponding to the mesh belt; the fan output end is connected to the outside of the frame; The front end of the shaped smoke exhaust cover is connected to a front smoke baffle, and the rear end is provided with a rear smoke baffle; the positions of the front and rear smoke baffles correspond to the heating chamber. The rear end of the shaped smoke exhaust top cover is equipped with a hinge that connects to the frame; the rear part of the shaped smoke exhaust top cover and the frame are equipped with a gas spring mechanism; The rear smoke baffle is rotatably connected to the frame.

2. The substrate film conveying and shaping smoke extraction system according to claim 1, characterized in that: Several inclined cooling fans are evenly distributed on the lower front surface of the shaped smoke exhaust cover along the width of the mesh belt.

3. The substrate film conveying and shaping smoke extraction system according to claim 1, characterized in that: The heating chamber opening is equipped with a protective mesh.

4. The substrate film conveying and shaping smoke extraction system according to claim 1, characterized in that: A temperature probe protruding from the heating chamber is installed inside the heating chamber.

5. The substrate film conveying and shaping smoke extraction system according to claim 1, characterized in that: The front and rear ends of the mesh belt are respectively connected to drive rollers and passive rollers; the drive rollers are connected to drive motors through transmission.

6. The substrate film conveying and shaping smoke extraction system according to claim 1, characterized in that: The exhaust pipes are symmetrically arranged around the mesh belt; both ends of the suction box are connected to the fan input.

7. The substrate film conveying and shaping smoke extraction system according to claim 1, characterized in that: The upper surface of the film suction box is provided with a convex shell; the film suction holes are evenly distributed on the upper surface of the convex shell.

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