Plastic particle melting device for plastic bag production

Abstract

The utility model relates to a plastic particle melting device for plastic bag production, which belongs to the technical field of plastic bag production and comprises a heat insulation barrel, a hot melting barrel and a stirring unit are arranged on the heat insulation barrel, a spiral heating wire is arranged on the outer surface of the hot melting barrel, and a fixing structure and a driving structure are arranged on the heat insulation barrel. According to the plastic particle melting device for plastic bag production, a double-brake motor is used as a driving source, an annular plate is controlled to rotate through mechanical transmission, two arc-shaped plates can be driven to rotate by 90 degrees, then two locking blocks are controlled to retreat from the interiors of two limiting blocks, and therefore fixing of a cover plate is relieved; the cover plate and the stirring unit can be mounted only by resetting the cover plate and the stirring unit and starting the double-brake motor to drive the output shaft to rotate reversely during mounting, so that the labor intensity of the worker is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic bag production, specifically to a plastic particle melting device for plastic bag production. BACKGROUND

[0002] Plastic bag production includes film blowing machine preheating, hot melting and blowing, film traction and winding, printing process, bag making process, inspection and packaging, etc. Hot melting and blowing is to heat and melt plastic particles. The plastic is heated and melted in the machine cylinder, forming a continuous melt, which is extruded from the annular die of the machine head, forming a thin-walled tube blank. At the same time, the air ring blows uniform cold air to the tube blank, which is blown into a cylindrical film during upward traction. The blowing ratio is usually between 2-3, which affects the thickness and width of the film. The traction roller pulls the blown film upward at a constant speed. Controlling the traction speed can adjust the film thickness. The faster the speed, the thinner the film. Then the film is wound on the winding machine spool. The winding tension should be moderate. If the tension is too large, the film is easy to stretch and deform. If the tension is too small, the winding is not tight and there are loose wrinkles.

[0003] At present, the plastic particle melting device used in plastic bag production is composed of a hopper, a heating system, a stirring mechanism and a discharge system. The stirring mechanism is driven by an anchor stirring rod rotating by a motor. Long-term use of the anchor stirring rod will cause plastic to adhere to its surface, which needs to be regularly disassembled and cleaned. The disassembly process is troublesome, which increases the labor intensity of the workers. Therefore, a plastic particle melting device for plastic bag production is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a plastic particle melting device for plastic bag production, which has the advantages of quick disassembly of the stirring unit and the cover plate, and solves the problem that the plastic particle melting device used in plastic bag production is composed of a hopper, a heating system, a stirring mechanism and a discharge system. The stirring mechanism is driven by an anchor stirring rod rotating by a motor. Long-term use of the anchor stirring rod will cause plastic to adhere to its surface, which needs to be regularly disassembled and cleaned. The disassembly process is troublesome, which increases the labor intensity of the workers.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a plastic particle melting device for plastic bag production, comprising a heat insulation cylinder, a hot melting cylinder and a stirring unit are arranged on the heat insulation cylinder, a spiral heating wire is arranged on the outer surface of the hot melting cylinder, a fixing structure and a driving structure are arranged on the heat insulation cylinder;

[0006] The fixing structure comprises a cover plate mounted on the heat insulation cylinder, the stirring unit is mounted on the cover plate, the left and right sides of the cover plate are fixedly provided with limiting blocks with one end penetrating and extending to the outside of the heat insulation cylinder, the left and right sides of the heat insulation cylinder are fixedly provided with brackets, the top of the two brackets is fixedly provided with annular slide rails fixedly connected with the outer surface of the heat insulation cylinder, the inside of the annular slide rails is slidably provided with two arc-shaped slide plates, the top of the two arc-shaped slide plates is fixedly provided with arc-shaped plates, and the two arc-shaped plates are fixedly provided with locking blocks for fixing the limiting blocks.

[0007] Further, the driving structure comprises annular plates fixedly mounted on the outer surfaces of the two arc-shaped plates, a double-brake motor is fixedly mounted on the right bracket, one side of the double-brake motor is provided with a transmission component for driving the annular plates to rotate, and the two arc-shaped plates are provided with induction components for controlling the double-brake motor to stop.

[0008] Further, the heat melting cylinder is fixedly mounted in the heat insulation cylinder, and the spiral heating wire is fixedly mounted on the outer surface of the heat melting cylinder.

[0009] Further, the top of the heat insulation cylinder is provided with two limiting grooves, one end of the two limiting blocks penetrates through the two limiting grooves and extends to the outside of the heat insulation cylinder, and the inside of the two limiting blocks is provided with positioning grooves, and one end of the two locking blocks penetrates through and extends to the inside of the two positioning grooves.

[0010] Further, the inner circumferential wall of the annular slide rail is fixedly provided with anti-disengagement rings, the outer circumferential wall of the two arc-shaped slide plates is provided with anti-disengagement grooves, and the outer surfaces of the anti-disengagement rings are slidably connected with the inner walls of the two anti-disengagement grooves.

[0011] Further, the transmission component comprises two bevel gears, the two bevel gears are fixedly mounted on the outer surfaces of the output shaft of the double-brake motor and the annular plate respectively, and the outer surfaces of the two bevel gears are engaged.

[0012] Further, the induction component comprises two pressure sensors, the two pressure sensors are fixedly mounted on the two arc-shaped plates respectively, and the two pressure sensors are electrically connected with the double-brake motor respectively.

[0013] Compared with the prior art, the technical scheme has the following beneficial effects:

[0014] The plastic bag production plastic particle melting device, through the fixed structure and the driving structure, realizes the use of double brake motor as driving source and through mechanical transmission control ring plate rotation, so that the ring plate can drive two arc-shaped plates to rotate until two arc-shaped plates rotate ninety degrees, and then control two locking blocks to exit the inside of two limiting blocks, so as to release the fixing of the cover plate, and then the staff can take down the cover plate and the stirring unit from the hot melting cylinder for cleaning, and when installing, only need to reset the cover plate and the stirring unit, start the double brake motor driving output shaft reverse rotation, until the locking block inserts into the limiting block and extrudes the pressure sensor, so as to trigger the double brake motor to stop, so as to complete the installation of the cover plate and the stirring unit, thereby reducing the labor intensity of the staff. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic diagram of the utility model;

[0016] Figure 2 It is a structure schematic diagram of the utility model Figure 1 A enlarged view of the utility model structure;

[0017] Figure 3 It is a front view of the utility model structure Figure 1 ;

[0018] Figure 4 It is a three-dimensional view of the utility model structure locking block, arc-shaped plate and arc-shaped slide plate.

[0019] In the drawing: 1, heat insulation cylinder; 2, hot melting cylinder; 3, spiral heating wire; 4, stirring unit; 51, cover plate; 52, limiting block; 53, bracket; 54, annular slide rail; 55, arc-shaped slide plate; 56, arc-shaped plate; 57, locking block; 58, ring plate; 59, double brake motor; 60, transmission component; 61, sensing component. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1 to 4The plastic particle melting device for plastic bag production in the embodiment comprises a heat insulation cylinder 1, a hot melting cylinder 2 and a stirring unit 4 are arranged on the heat insulation cylinder 1, a helical heating wire 3 is arranged on the outer surface of the hot melting cylinder 2, the heat insulation cylinder 1 is provided with a fixing structure and a driving structure, the hot melting cylinder 2 is fixedly installed in the heat insulation cylinder 1, and the helical heating wire 3 is fixedly installed on the outer surface of the hot melting cylinder 2.

[0022] In the embodiment, the fixing structure comprises a cover plate 51 installed on the heat insulation cylinder 1, the stirring unit 4 is installed on the cover plate 51, the left and right sides of the cover plate 51 are fixedly installed with a limiting block 52, one end of which penetrates through and extends to the outside of the heat insulation cylinder 1, the left and right sides of the heat insulation cylinder 1 are fixedly installed with a bracket 53, the top of the two brackets 53 is fixedly installed with an annular slide rail 54 fixedly connected with the outer surface of the heat insulation cylinder 1, the inside of the annular slide rail 54 is slidably installed with two arc-shaped sliding plates 55, the inner circumferential wall of the annular slide rail 54 is fixedly installed with an anti-falling ring, the outer circumferential wall of the two arc-shaped sliding plates 55 is provided with an anti-falling groove, the outer surface of the anti-falling ring is slidably connected with the inner wall of the two anti-falling grooves, so as to limit the rotating track of the arc-shaped sliding plates 55 and prevent them from falling off, the top of the two arc-shaped sliding plates 55 is fixedly installed with an arc-shaped plate 56, and the two arc-shaped plates 56 are fixedly installed with a locking block 57 for fixing the limiting block 52.

[0023] The top of the heat insulation cylinder 1 is provided with two limiting grooves, one end of the two limiting blocks 52 penetrates through the two limiting grooves and extends to the outside of the heat insulation cylinder 1, and the inside of the two limiting blocks 52 is provided with a positioning groove, one end of the two locking blocks 57 penetrates through and extends to the inside of the two positioning grooves, so as to insert the locking block 57 into the inside of the limiting block 52, thereby fixing the position of the cover plate 51.

[0024] The above technical scheme realizes that the driving structure drives the two arc-shaped plates 56 to rotate by ninety degrees on the annular slide rail 54, so that the two arc-shaped plates 56 drive the two locking blocks 57 to exit the inside of the limiting block 52, thereby releasing the position fixing of the two limiting blocks 52, and then the cover plate 51 and the stirring unit 4 can be disassembled.

[0025] In the embodiment, the driving structure comprises an annular plate 58 fixedly installed on the outer surface of the two arc-shaped plates 56, a double-brake motor 59 is fixedly installed on the right bracket 53, the double-brake motor 59 is provided with a transmission component 60 for driving the annular plate 58 to rotate, the two arc-shaped plates 56 are installed with an induction component 61 for controlling the double-brake motor 59 to stop, the induction component 61 comprises two pressure sensors fixedly installed on the two arc-shaped plates 56, and the two pressure sensors are electrically connected with the double-brake motor 59, so as to press the pressure sensor in the induction component 61 and trigger the double-brake motor 59 to stop.

[0026] The transmission component 60 includes two bevel gears, which are fixedly installed on the output shaft of the double brake motor 59 and the outer surface of the annular plate 58 respectively, and the outer surfaces of the two bevel gears are engaged, so that the rotating output shaft drives the annular plate 58 to rotate through the two engaged bevel gears.

[0027] The above technical solution realizes the resetting of the cover plate 51 and the stirring unit 4 to the initial position, and then the double brake motor 59 is started to drive the output shaft to rotate reversely, and the annular plate 58 is driven to rotate reversely through mechanical transmission, so that the two arc-shaped plates 56 and the two locking blocks 57 rotate clockwise, until the two locking blocks 57 are inserted into the interiors of the two limiting blocks 52, until the pressure sensor in the extrusion sensing component 61 is extruded and triggers the double brake motor 59 to be turned off, thereby completing the installation of the stirring unit 4 and the cover plate 51.

[0028] The working principle of the above embodiment is as follows:

[0029] When the stirring unit 4 needs to be disassembled and cleaned, the double brake motor 59 on the bracket 53 is started, so that the double brake motor 59 drives the output shaft to rotate, and the output shaft drives the annular plate 58 to rotate through the two engaged bevel gears in the transmission component 60, and then the rotating annular plate 58 drives the two arc-shaped plates 56 to rotate ninety degrees on the annular slide rail 54, so that the two arc-shaped plates 56 drive the two locking blocks 57 to exit the interiors of the limiting blocks 52 respectively, thereby releasing the position fixation of the two limiting blocks 52, and then the cover plate 51 and the stirring unit 4 can be disassembled;

[0030] When the cleaning is completed and assembly is needed, the cover plate 51 and the stirring unit 4 are reset to the initial position, and then the double brake motor 59 is started to drive the output shaft to rotate reversely, and the annular plate 58 is driven to rotate reversely through mechanical transmission, so that the two arc-shaped plates 56 and the two locking blocks 57 rotate clockwise, until the two locking blocks 57 are inserted into the interiors of the two limiting blocks 52 respectively, until the pressure sensor in the extrusion sensing component 61 is extruded and triggers the double brake motor 59 to be turned off, thereby completing the installation of the stirring unit 4 and the cover plate 51.

[0031] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0032] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A plastic pellet melting device for plastic bag production comprising an insulated cylinder (1), characterized in that: The heat insulation barrel (1) is provided with a hot melt barrel (2) and a stirring unit (4), the outer surface of the hot melt barrel (2) is provided with a spiral heating wire (3), and the heat insulation barrel (1) is provided with a fixing structure and a driving structure; The fixing structure comprises a cover plate (51) mounted on the heat insulation barrel (1), the stirring unit (4) is mounted on the cover plate (51), the left and right sides of the cover plate (51) are fixedly provided with a limiting block (52) penetrating through one end and extending to the outside of the heat insulation barrel (1), the left and right sides of the heat insulation barrel (1) are fixedly provided with a bracket (53), the top of the two brackets (53) is fixedly provided with an annular slide rail (54) fixedly connected with the outer surface of the heat insulation barrel (1), the inside of the annular slide rail (54) is slidably provided with two arc-shaped slide plates (55), the top of the two arc-shaped slide plates (55) is fixedly provided with an arc-shaped plate (56), and the two arc-shaped plates (56) are fixedly provided with a locking block (57) for fixing the limiting block (52).

2. The plastic pellet melting device for plastic bag production according to claim 1, characterized in that: The driving structure comprises an annular plate (58) fixedly mounted on the outer surfaces of the two arc-shaped plates (56), a double-brake motor (59) is fixedly mounted on the right bracket (53), one side of the double-brake motor (59) is provided with a transmission component (60) for driving the annular plate (58) to rotate, and the two arc-shaped plates (56) are provided with an induction component (61) for controlling the double-brake motor (59) to stop.

3. The plastic pellet melting device for plastic bag production according to claim 1, characterized in that: The hot melt barrel (2) is fixedly mounted in the heat insulation barrel (1), and the spiral heating wire (3) is fixedly mounted on the outer surface of the hot melt barrel (2).

4. The plastic pellet melting device for plastic bag production according to claim 1, characterized in that: The top of the heat insulation barrel (1) is provided with two limiting grooves, one end of the two limiting blocks (52) penetrates through the two limiting grooves and extends to the outside of the heat insulation barrel (1), and the inside of the two limiting blocks (52) is provided with a positioning groove.

5. The plastic pellet melting device for plastic bag production according to claim 1, characterized in that: The inner circumferential wall of the annular slide rail (54) is fixedly provided with an anti-falling ring, and the outer circumferential wall of the two arc-shaped slide plates (55) is provided with an anti-falling groove.

6. The plastic pellet melting device for plastic bag production according to claim 2, characterized in that: The transmission component (60) comprises two bevel gears, the two bevel gears are fixedly mounted on the outer surfaces of the output shaft of the double-brake motor (59) and the annular plate (58) respectively, and the outer surfaces of the two bevel gears are engaged.

7. The plastic pellet melting device for plastic bag production according to claim 2, characterized in that: The induction component (61) comprises two pressure sensors, the two pressure sensors are fixedly mounted on the two arc-shaped plates (56) respectively, and the two pressure sensors are electrically connected with the double-brake motor (59).

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