Raw material preheating device for preparing EVA (Ethylene Vinyl Acetate) particles

Abstract

The utility model relates to the technical field of EVA (Ethylene Vinyl Acetate) particle preparation, in particular to a raw material preheating device for EVA particle preparation, which comprises a base, a support frame and an extruder are fixedly arranged on the base, a preheating treatment box is fixedly arranged at the top of the support frame, the preheating treatment box is communicated with the extruder, and a square mounting hole groove is formed in the preheating treatment box. A ventilation partition plate is fixedly installed in the square installation hole groove, a push type distance adjusting assembly is installed on the inner wall of one end of the square installation hole groove and located at the top of the ventilation partition plate, material stirring rollers are evenly installed on the push type distance adjusting assembly, and an inclined telescopic baffle is rotationally installed at one end of the push type distance adjusting assembly. The raw materials in the preheating treatment box can be more dispersed, the preheating of the raw materials is more sufficient, the preheating effect of the raw materials is effectively improved, meanwhile, the raw materials with different volumes can be dispersed and used, and the use is flexible and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of EVA particle preparation, in particular to a raw material preheating device for EVA particle preparation. Background Art

[0002] EVA is an ethylene-vinyl acetate copolymer material, which is a non-toxic, odorless, transparent thermoplastic. EVA material has excellent elasticity, flexibility, transparency, insulation, low-temperature flexibility, weather resistance, and chemical corrosion resistance. It is widely used in the manufacture of wire and cable materials, films and other molded products and mixtures, automotive industry parts, adhesives, coatings, etc. The EVA material granulation process generally requires the recycled material to be crushed and cleaned before thermoplastic extrusion molding, and then cooled and molded into pellets. The recycled material after crushing and cleaning needs to be preheated to avoid bubbles during the thermoplastic process.

[0003] As disclosed in Publication No. (CN218838284U), a raw material preheating device for preparing EVA particles is disclosed, whose structure includes a column tube, a hollow tube is fixedly provided on the inner central axis of the column tube and is connected to the inner side of the column tube, the right end of the hollow tube is connected to the outer side of the column tube, a through opening is provided at the lower left end of the column tube, and the outer side of the hollow tube is fixedly connected to the column tube through a support rod. The utility model has the following beneficial effects. By operating the servo motor, the auger can be driven to rotate, and the hot air inlet equipment connected to the suction pipe is started, and the hot air enters the column tube and the hollow tube. The column tube is gradually inclined from left to right, and the hot air flows upward according to the heat flow, that is, the hot air flows to the left side of the column tube and is discharged at the opening. The cleaning material is then placed in the hopper, enters the hollow tube through the inlet pipe, and is stably transported to the right by the auger, contacts the hot air for preheating and drying, and is discharged at the right end of the hollow tube. It has high efficiency and strong stability.

[0004] However, the above technical solution preheats the raw materials during the process of being put into the auger for transportation. The hot air cannot enter the auger and directly contact the raw materials. In addition, during the transportation process of the auger, the raw materials are not dispersed enough, resulting in a poor preheating effect. At the same time, raw materials of different sizes are not convenient to be transported using the auger, and the preheating of raw materials of different volumes cannot be met. There are certain disadvantages in the use process.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to overcome the technical defects of the prior art, the utility model provides a raw material preheating device for preparing EVA particles, which makes the preheating of the raw materials more sufficient and effectively improves the preheating effect of the raw materials.

[0007] The technical solution adopted by the utility model is: it includes a base, the support frame and the extruder are fixedly installed on the base, the preheating treatment box is fixedly installed on the top of the support frame, the preheating treatment box is connected with the extruder, a square mounting hole groove is opened on the preheating treatment box, the air permeable baffle is fixedly installed in the square mounting hole groove, the push-type distance adjustment component is installed on the inner wall of one end of the square mounting hole groove, and the push-type distance adjustment component is located on the top of the air permeable baffle, the material diverting roller is evenly installed on the push-type distance adjustment component, the inclined telescopic baffle is rotatably installed on one end of the push-type distance adjustment component, and one end of the inclined telescopic baffle is rotatably connected to the inner wall of the preheating treatment box through the first connecting shaft.

[0008] Preferably, in order to control the opening of the built-in motor of the adjusting slider so as to mobilize the material-dispensing roller to rotate, the push-type distance adjustment assembly includes an adjusting slider, the adjusting slider is slidably engaged above the breathable partition, the material-dispensing roller is rotatably mounted on the adjusting slider, and one end of the material-dispensing roller is fixedly connected to the output shaft of the built-in motor of the adjusting slider.

[0009] Preferably, in order to be able to equidistantly adjust the distance between the adjusting sliders by controlling the movement of the adjusting slider at one end, the adjusting sliders are evenly distributed above the breathable partition, and the adjusting sliders are elastically connected to each other through the first connecting spring.

[0010] Preferably, in order to enable the two ends of the inclined telescopic baffle to rotate on the preheating treatment box and the adjusting slider respectively through the first connecting shaft and the second connecting shaft when the adjusting slider at one end moves, the adjusting slider at one end is elastically connected to the inner wall of one end of the square mounting hole groove through the first connecting spring, and the inclined telescopic baffle is rotatably installed on the adjusting slider at the other end through the second connecting shaft.

[0011] Preferably, in order to drive the adjustment slider to move under the action of the vertical mounting plate and the fixed connecting rod by pushing the lifting push rod and the limit pin rod, the fixed connecting rod is fixedly installed on the other end of the adjustment slider, and the vertical mounting plate is fixed on the fixed connecting rod, and the limit pin rod is slidably inserted at one end of the vertical mounting plate, and one end of the limit pin rod is inserted into the limit pin hole opened on the outer wall of the preheating treatment box, and the lifting push rod is fixedly installed on the other end of the limit pin rod.

[0012] Preferably, in order to enable the limit pin rod to be automatically inserted into the limit pin hole through the circular connecting plate under the action of the elastic force of the locking spring, the circular connecting plate is fixedly installed on the limit pin rod, and the circular connecting plate is elastically connected to the vertical mounting plate through the locking spring.

[0013] Preferably, in order to control the air blowing fan and the electric heating wire to turn on so that the heat generated by the electric heating wire can be blown into the preheating treatment box through the air permeable partition, the temperature control box is fixed on the side wall of the preheating treatment box, and the air blowing fan and the electric heating wire are fixedly installed in the temperature control box. The air blowing fan and the electric heating wire correspond horizontally to the air permeable partition, and the electric heating wire is located between the air blowing fan and the air permeable partition.

[0014] Preferably, in order to feed the material to be preheated into the preheat treatment box through the feed hopper, the sealing top plate is fixedly installed on the top of the preheat treatment box, and the feed hopper is fixed on the sealing top plate.

[0015] The beneficial effects of the utility model are as follows: through the material-dispensing roller, the raw materials in the preheating treatment box can be more dispersed, the preheating of the raw materials can be more sufficient, and the preheating effect of the raw materials is effectively improved; at the same time, by controlling the push-type distance adjustment component, the material-dispensing rollers can be adjusted equidistantly, which can be suitable for the dispersed use of raw materials of different volumes, and the use is flexible and convenient, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the installation structure of the material-dispensing roller of the utility model.

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the inclined telescopic baffle of the utility model.

[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure 5 The utility model is a schematic diagram of the installation structure of the air blowing fan and the electric heating wire.

[0021] Explanation of the accompanying drawings: In the figure: 1. base; 2. support frame; 3. extruder; 4. preheating treatment box; 5. breathable partition; 6. push-type distance adjustment component; 601. adjustment slider; 602. first connecting spring; 603. second connecting spring; 604. second connecting shaft; 605. fixed connecting rod; 606. vertical mounting plate; 607. limit pin rod; 608. lifting push rod; 609. circular connecting plate; 610. locking spring; 7. material feeding roller; 8. tilted telescopic baffle; 9. first connecting shaft; 10. temperature control box; 11. air blowing fan; 12. heating wire; 13. sealing top plate; 14. feed hopper. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1-5 As shown, this embodiment provides a raw material preheating device for preparing EVA particles, including a base 1, a support frame 2 and an extruder 3 are fixedly installed on the base 1, a preheating treatment box 4 is fixedly installed on the top of the support frame 2, and the preheating treatment box 4 is connected with the extruder 3, so that the raw material can be preheated in the preheating treatment box 4 and then put into the extruder 3, a square mounting hole groove is opened on the preheating treatment box 4, and a breathable baffle 5 is fixedly installed in the square mounting hole groove. Under the action of the breathable baffle 5, the gas in the preheating treatment box 4 can be circulated, and a push-type distance adjustment component 6 is installed on the inner wall of one end of the square mounting hole groove, and the push-type distance adjustment component 6 is installed on the inner wall of the square mounting hole groove. The dynamic distance adjustment component 6 is located at the top of the breathable partition 5, and the material-dispensing rollers 7 are evenly installed on the push-type distance adjustment component 6. The push-type distance adjustment component 6 is controlled to adjust the distance between the material-dispensing rollers 7 to achieve uniform delivery of raw materials of different volumes. An inclined telescopic baffle 8 is rotatably installed at one end of the push-type distance adjustment component 6, and one end of the inclined telescopic baffle 8 is rotatably connected to the inner wall of the preheating treatment box 4 through a first connecting shaft 9. Under the action of the inclined telescopic baffle 8, the raw materials are prevented from falling directly from the gap on one side of the material-dispensing roller 7, so that the raw materials passing through the material-dispensing roller 7 are more evenly dispersed.

[0024] The push-type distance adjustment component 6 includes an adjusting slider 601, which is slidably connected to the top of the breathable baffle 5, and the material-dispensing roller 7 is rotatably installed on the adjusting slider 601, and one end of the material-dispensing roller 7 is fixedly connected to the built-in motor output shaft of the adjusting slider 601. The adjusting sliders 601 are evenly distributed above the breathable baffle 5, and the adjusting sliders 601 are elastically connected to each other through a first connecting spring 602. The adjusting slider 601 at one end is elastically connected to the inner wall of one end of the square mounting hole groove through a second connecting spring 603, and the inclined telescopic baffle 8 is rotatably installed on the adjusting slider 601 at the other end through a second connecting shaft 604. A fixed connecting rod 605 is fixedly installed on the adjusting slider 601 at the other end, and a vertical mounting plate 606 is fixed on the fixed connecting rod 605. One end of the vertical mounting plate 606 is slidably inserted with a limit pin rod 60 7. One end of the limit pin 607 is inserted into the limit pin hole provided on the outer wall of the preheat treatment box 4, and the other end of the limit pin 607 is fixedly installed with a lifting push rod 608. A circular connecting plate 609 is fixedly installed on the limit pin 607, and the circular connecting plate 609 is elastically connected to the vertical mounting plate 606 through a locking spring 610. When in use, the lifting push rod 608 is pulled to make the limit pin 607 slide on the vertical mounting plate 606, so that one end of the limit pin 607 is separated from the limit pin hole. At this time, the lifting push rod 608 and the limit pin 607 are pushed horizontally, so that the vertical mounting plate 606 and the fixed connecting rod 605 drive the adjusting slider 601 to move, and under the action of the first connecting spring 602 and the second connecting spring 603, the equidistant adjustment between the adjusting sliders 601 is realized, thereby realizing the adjustment of the distance between the material feeding rollers 7.

[0025] A temperature control box 10 is fixed on the side wall of the preheating treatment box 4, and an air blowing fan 11 and an electric heating wire 12 are fixedly installed in the temperature control box 10. The air blowing fan 11 and the electric heating wire 12 correspond horizontally to the air permeable baffle 5, and the electric heating wire 12 is located between the air blowing fan 11 and the air permeable baffle 5. When in use, the air blowing fan 11 and the electric heating wire 12 are controlled to be turned on, so that the heat generated by the electric heating wire 12 enters the preheating treatment box 4 through the air permeable baffle 5 to achieve preheating treatment of the raw materials. A sealing top plate 13 is fixedly installed on the top of the preheating treatment box 4, and a feed hopper 14 is fixed on the sealing top plate 13, so that the raw materials can be put into the preheating treatment box 4 through the feed hopper 14.

[0026] When the utility model is in use, the raw materials are first put into the preheating treatment box 4, and according to the volume of the raw materials, the push-type distance adjustment component 6 is controlled to adjust the distance between the material-feeding rollers 7, and under the action of the inclined telescopic baffle 8, the raw materials are prevented from falling downward through the gap on one side of the material-feeding roller 7, so that the raw materials fall more dispersedly after passing through the material-feeding roller 7, and when the air blowing fan 11 and the electric heating wire 12 are turned on, the heat generated by the electric heating wire 12 enters the preheating treatment box 4 through the air-permeable partition 5, so that the preheating treatment of the raw materials is more sufficient, and the raw materials after sufficient preheating treatment fall into the extruder 3, which effectively avoids the influence of bubbles on the preparation of EVA particles.

[0027] The above shows and describes the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A raw material preheating device for preparing EVA particles, comprising a base (1), characterized in that: A support frame (2) and an extruder (3) are fixedly mounted on the base (1); a preheating treatment box (4) is fixedly mounted on the top of the support frame (2); the preheating treatment box (4) is connected to the extruder (3); a square mounting hole groove is provided on the preheating treatment box (4); a breathable baffle (5) is fixedly mounted in the square mounting hole groove; a push-type distance adjustment component (6) is mounted on the inner wall at one end of the square mounting hole groove, and the push-type distance adjustment component (6) is located on the top of the breathable baffle (5); a material-dispensing roller (7) is evenly mounted on the push-type distance adjustment component (6); an inclined telescopic baffle (8) is rotatably mounted on one end of the push-type distance adjustment component (6), and one end of the inclined telescopic baffle (8) is rotatably connected to the inner wall of the preheating treatment box (4) through a first connecting shaft (9).

2. A raw material preheating device for preparing EVA particles according to claim 1, characterized in that: The push-type distance adjustment component (6) comprises an adjustment slider (601), the adjustment slider (601) is slidably engaged above the air-permeable partition (5), the material-dispensing roller (7) is rotatably mounted on the adjustment slider (601), and one end of the material-dispensing roller (7) is fixedly connected to the built-in motor output shaft of the adjustment slider (601).

3. A raw material preheating device for preparing EVA particles according to claim 2, characterized in that: The adjusting sliders (601) are evenly distributed above the air-permeable partition (5), and the adjusting sliders (601) are elastically connected to each other via first connecting springs (602).

4. A raw material preheating device for preparing EVA particles according to claim 3, characterized in that: The adjusting slider (601) at one end is elastically connected to the inner wall of one end of the square mounting hole slot via a second connecting spring (603), and the inclined telescopic baffle (8) is rotatably mounted on the adjusting slider (601) at the other end via a second connecting shaft (604).

5. A raw material preheating device for preparing EVA particles according to claim 4, characterized in that: A fixed connecting rod (605) is fixedly installed on the adjusting slider (601) at the other end, and a vertical mounting plate (606) is fixed on the fixed connecting rod (605). A limit pin rod (607) is slidably inserted at one end of the vertical mounting plate (606), and one end of the limit pin rod (607) is inserted into a limit pin hole opened on the outer wall of the preheating treatment box (4), and a lifting push rod (608) is fixedly installed at the other end of the limit pin rod (607).

6. A raw material preheating device for preparing EVA particles according to claim 5, characterized in that: A circular connecting plate (609) is fixedly mounted on the limiting pin rod (607), and the circular connecting plate (609) is elastically connected to the vertical mounting plate (606) via a locking spring (610).

7. The raw material preheating device for preparing EVA particles according to claim 1, characterized in that: A temperature control box (10) is fixed on the side wall of the preheating treatment box (4), and an air blowing fan (11) and an electric heating wire (12) are fixedly installed in the temperature control box (10). The air blowing fan (11) and the electric heating wire (12) correspond horizontally to the air permeable baffle (5), and the electric heating wire (12) is located between the air blowing fan (11) and the air permeable baffle (5).

8. The raw material preheating device for preparing EVA particles according to claim 1, characterized in that: A sealing top plate (13) is fixedly mounted on the top of the preheat treatment box (4), and a feed hopper (14) is fixed on the sealing top plate (13).

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