A raw material melting device for producing a multilayer co-extrusion film

Abstract

The utility model belongs to multilayer co -extrusion film production device technical field, concretely is a kind of raw material melting device for multilayer co -extrusion film production, including melting tank, the lower end fixedly connected with blanking tube of melting tank, the circumferential surface fixed mounting of blanking tube has valve, the upper end fixedly connected with feed pipe and fixed frame of melting tank, the inside rotationally connected with rotating cylinder of fixed frame, the inside of melting tank is provided with shaft, the circumferential surface fixedly connected with multiple first stirrer blade and second stirrer blade of shaft, the bottom end of second stirrer blade and the bottom end of shaft are all fixedly connected with knock ball, the inner wall fixedly connected with filter plate of melting tank, the circumferential surface fixedly connected with multiple convex stripe of shaft, the top of melting tank and the circumferential surface of shaft are jointly installed with reciprocating mechanism. The utility model can filter co -extrusion film raw material after melting treatment, avoid the co -extrusion film raw material that has not melted completely to enter next process, to prevent the quality of subsequent product from being influenced.

Description

Technical Field

[0001] This utility model belongs to the technical field of equipment for producing multilayer co-extruded films, specifically a raw material melting device for producing multilayer co-extruded films. Background Technology

[0002] Co-extruded film is a composite film made by combining substrates with different properties through multi-layer co-extrusion technology. It is a one-step molding process that can comprehensively utilize the properties of various substrates to meet the different requirements of flexible packaging. Therefore, the production of co-extruded film requires melting the raw materials and processing them through blown film molds.

[0003] The existing co-extruded film raw materials are melted in the melting device and then directly transported to the next process without filtration. Unmelted particles will also enter the next process, which will affect the quality of subsequent products. Summary of the Invention

[0004] The purpose of this invention is to provide a raw material melting device for the production of multilayer co-extruded film, which can filter the melted co-extruded film raw material to prevent incompletely melted co-extruded film raw material from entering the next process, thereby preventing it from affecting the quality of subsequent products.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A raw material melting device for multilayer co-extruded film production is provided, comprising a melting tank, a feeding pipe fixedly connected to the lower end of the melting tank, a valve fixedly installed on the circumferential surface of the feeding pipe, a feed pipe and a fixed frame fixedly connected to the upper end of the melting tank, a rotating cylinder rotatably connected inside the fixed frame, a driving mechanism installed on the circumferential surface of the rotating cylinder, and the driving mechanism driving the rotating cylinder to rotate; a rotating shaft is provided inside the melting tank, and the circumferential surface of the rotating shaft is fixed... The device is equipped with multiple first and second stirring blades. The bottom ends of the second stirring blades and the bottom ends of the rotating shaft are fixedly connected to striking balls. A filter plate is fixedly connected to the inner wall of the melting tank, and the filter plate is located below the striking balls. The rotating shaft passes upward through the melting tank and the rotating cylinder. Multiple protrusions are fixedly connected to the circumferential surface of the rotating shaft. Multiple sliding grooves that slide with the protrusions are opened inside the rotating cylinder. A reciprocating mechanism is installed on the top of the melting tank and the circumferential surface of the rotating shaft, and the reciprocating mechanism is used to drive the rotating shaft to perform up-and-down reciprocating motion.

[0006] Optionally, the inside of the feed pipe is fitted with a sealing cap.

[0007] Optionally, the drive mechanism includes a motor, a drive wheel, a timing belt, and a driven wheel. The motor is placed at the upper end of the melting tank, the output shaft of the motor is fixedly connected to the drive wheel, the circumferential surface of the rotating cylinder is fixedly connected to the driven wheel, and the drive wheel and the driven wheel are connected by a timing belt.

[0008] Optionally, a heat insulation plate is fixedly installed on the upper end of the melting tank, and the motor is fixedly installed on the upper end of the heat insulation plate.

[0009] Optionally, the reciprocating mechanism includes a fixed disk, a movable wheel, a support disk, a telescopic rod, a spring, an annular track, a protrusion, and an inclined surface. The fixed disk is fixedly connected to the circumferential surface of the rotating shaft. The support disk is rotatably connected to the lower end of the fixed disk. The rotating shaft passes through the support disk. A through hole for the rotating shaft to pass through is opened at the center of the support disk, and the diameter of the through hole is larger than the diameter of the rotating shaft. The spring and the telescopic rod are fixedly connected to the bottom end of the support disk. The ends of the spring and the telescopic rod away from the support disk are fixedly connected to the melting tank. The movable wheel is fixedly connected to the bottom end of the fixed disk. An annular track is fixedly connected to the top end of the melting tank. A protrusion is fixedly connected to the upper end of the annular track. The protrusion and the annular track are an integral structure, and an inclined surface is provided at the upper end of the protrusion. The movable wheel is located on the annular track.

[0010] Optionally, the melting tank includes, from the inside out, an inner liner, a heating wire, and an outer liner. The inner liner is made of a metal material with good thermal conductivity, such as stainless steel. The heating wire is spirally wound around the outer circumference of the inner liner and is located between the inner liner and the outer liner. The outer liner is made of a heat-insulating material.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, through the coordinated operation of a drive mechanism, a reciprocating mechanism, a rotating shaft, convex strips, a filter plate, a second stirring blade, and a striking ball, can filter the melted co-extruded membrane raw material, preventing incompletely melted co-extruded membrane raw material from entering the next process, thus preventing any impact on the quality of subsequent products. During the melting process, the drive mechanism provides power to the rotating shaft, the second stirring blade, the striking ball, and the reciprocating mechanism. The drive mechanism drives the rotating shaft, the second stirring blade, and the striking ball to rotate continuously, and the reciprocating mechanism causes the rotating shaft to drive the second stirring blade and the striking ball to move up and down reciprocally. This up-and-down reciprocating motion of the striking ball, while rotating, strikes the filter plate, causing it to vibrate and reducing the probability of the filter plate mesh becoming clogged, thereby ensuring the filtration effect of the filter plate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a schematic diagram of the main structure of this utility model; Figure 2 This is a partial cross-sectional view of the structure of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the structure of the annular track, protrusion, and inclined surface in this utility model; Figure 5 This is a schematic diagram of the internal structure of the melting tank in this utility model.

[0014] In the diagram: 1. Melting tank; 2. Feed pipe; 3. Valve; 4. Raised bar; 5. Rotating shaft; 6. Drive mechanism; 601. Motor; 602. Drive wheel; 603. Synchronous belt; 604. Driven wheel; 7. Reciprocating mechanism; 701. Fixed plate; 702. Moving wheel; 703. Support plate; 704. Telescopic rod; 705. Spring; 706. Circular track; 707. Raised block; 708. Inclined surface; 8. First stirring blade; 9. Second stirring blade; 10. Striking ball; 11. Heating wire; 12. Feed pipe; 13. Sealing cover; 14. Rotating cylinder; 15. Fixed frame; 16. Filter plate. Detailed Implementation

[0015] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] The embodiments of this utility model will now be described. A raw material melting device for multilayer co-extruded film production includes a melting tank 1. A feeding pipe 2 is fixedly connected to the lower end of the melting tank 1, and a valve 3 is fixedly installed on the circumferential surface of the feeding pipe 2. A feeding pipe 12 and a fixing frame 15 are fixedly connected to the upper end of the melting tank 1. A rotating cylinder 14 is rotatably connected inside the fixing frame 15. A driving mechanism 6 is installed on the circumferential surface of the rotating cylinder 14, and the driving mechanism 6 is used to drive the rotating cylinder 14 to rotate. A rotating shaft 5 is provided inside the melting tank 1, and a plurality of first stirring blades 8 and second stirring blades are fixedly connected to the circumferential surface of the rotating shaft 5. The bottom ends of the mixing blade 9 and the second mixing blade 9, as well as the bottom end of the rotating shaft 5, are all fixedly connected to the striking ball 10. The inner wall of the melting tank 1 is fixedly connected to the filter plate 16, which is located at the lower end of the striking ball 10. The rotating shaft 5 passes through the melting tank 1 and the rotating cylinder 14 upwards. Multiple protrusions 4 are fixedly connected to the circumferential surface of the rotating shaft 5. Multiple sliding grooves that slide with the protrusions 4 are opened inside the rotating cylinder 14. The top of the melting tank 1 and the circumferential surface of the rotating shaft 5 are jointly equipped with a reciprocating mechanism 7, which is used to drive the rotating shaft 5 to perform up-and-down reciprocating motion. During operation, the melting tank 1 melts and processes food-grade co-extruded film raw materials. In specific use, the lower end of the feed pipe 2 at the bottom of the melting tank 1 needs to be connected to the conveying equipment for co-extruded film production. In this way, the co-extruded film raw materials processed in the melting tank 1 can enter the conveying equipment along the feed pipe 2, and then be transported by the conveying equipment to other forming equipment for processing in order to facilitate production. After the melting tank 1 has finished melting and processing the food-grade co-extruded film raw materials, they will be filtered through the filter plate 16. In this way, the co-extruded film raw materials entering the next process are all fully melted materials, which will not easily affect the quality of subsequent products.

[0017] Compared with the prior art, this utility model, through the cooperation of the drive mechanism 6, reciprocating mechanism 7, rotating shaft 5, protruding strip 4, filter plate 16, second stirring blade 9, and striking ball 10, can filter the melted co-extruded film raw material, preventing incompletely melted co-extruded film raw material from entering the next process, thereby preventing it from affecting the quality of subsequent products. During the melting process, the drive mechanism 6 can provide power to the rotating shaft 5, second stirring blade 9, striking ball 10, and reciprocating mechanism 7. The drive mechanism 6 drives the rotating shaft 5, second stirring blade 9, and striking ball 10 to rotate continuously. Under the action of the reciprocating mechanism 7, the rotating shaft 5 can drive the second stirring blade 9 and striking ball 10 to move up and down reciprocally. This causes the striking ball 10 to rotate while moving up and down reciprocating, thereby striking the filter plate 16, causing the filter plate 16 to vibrate, thus reducing the probability of the filter plate 16 mesh being blocked, and ensuring the filtration effect of the filter plate 16.

[0018] In another embodiment of this utility model, please refer to Figure 1 , Figure 2 and Figure 5The feed pipe 12 is equipped with a sealing cap 13. During operation, the feed pipe 12 facilitates feeding, while the sealing cap 13 allows the feed pipe 12 to be closed when not in use, preventing impurities from entering the melting tank 1 and affecting subsequent processing of food-grade co-extruded film raw materials.

[0019] In another embodiment of this utility model, please refer to Figures 1 to 5The drive mechanism 6 includes a motor 601, a drive wheel 602, a timing belt 603, and a driven wheel 604. The motor 601 is placed on the upper end of the melting tank 1. The drive wheel 602 is fixedly connected to the output shaft of the motor 601. The driven wheel 604 is fixedly connected to the circumferential surface of the rotating cylinder 14. The drive wheel 602 and the driven wheel 604 are connected by the timing belt 603. A heat insulation plate is fixedly installed on the upper end of the melting tank 1, and the motor 601 is fixedly installed on the upper end of the heat insulation plate. The presence of the heat insulation plate protects the motor 601 and prevents the high temperature of the melting tank 1 from affecting the lifespan of the motor 601. The reciprocating mechanism 7 includes a fixed plate 701, a moving wheel 702, a support plate 703, a telescopic rod 704, a spring 705, a ring track 706, a protrusion 707, and an inclined plane 708. A fixed... The lower end of the fixed plate 701 is rotatably connected to the support plate 703. The rotating shaft 5 passes through the support plate 703. A through hole for the rotating shaft 5 to pass through is opened at the center of the support plate 703, and the diameter of the through hole is larger than the diameter of the rotating shaft 5. The bottom end of the support plate 703 is fixedly connected to the spring 705 and the telescopic rod 704. The ends of the spring 705 and the telescopic rod 704 away from the support plate 703 are fixedly connected to the melting tank 1. The bottom end of the fixed plate 701 is fixedly connected to the moving wheel 702. The top end of the melting tank 1 is fixedly connected to the annular track 706. The upper end of the annular track 706 is fixedly connected to the protrusion 707. The protrusion 707 and the annular track 706 are an integral structure, and the upper end of the protrusion 707 is provided with an inclined surface 708. The moving wheel 702 is located on the annular track 706 and moves along the inclined surface 708 and the protrusion 707.When motor 601 is working, it drives drive wheel 602 to rotate, and with the cooperation of synchronous belt 603, drives driven wheel 604 to rotate, thereby driving rotating cylinder 14 to rotate. At this time, with the cooperation of convex strip 4 and sliding groove, it drives rotating shaft 5 to rotate, which in turn drives fixed disk 701, first stirring blade 8 and second stirring blade 9 to rotate. The rotation of first stirring blade 8 and second stirring blade 9 can stir the food-grade co-extruded film raw material inside melting tank 1, so that it is heated and melted more evenly. The rotation of fixed disk 701 drives moving wheel 702 to rotate along annular track 706. With the cooperation of inclined surface 708 and protrusion 707, moving wheel 702 and fixed disk 701 drive rotating shaft 5 to move up and down reciprocally inside rotating cylinder 14, thereby driving rotating shaft 5, first stirring blade 8 and second stirring blade 9 to move up and down reciprocally. During the process, when the moving wheel 702 moves along the inclined plane 708 to the upper end of the protrusion 707, it will drive the fixed plate 701, the support plate 703 and the rotating shaft 5 to move upward, and at the same time stretch the spring 705. When the moving wheel 702 moves up and down from the protrusion 707, the rotating shaft 5, the fixed plate 701 and the second stirring blade 9 will move downward under the action of the spring 705 and its own gravity. Since the rotating shaft 5 continues to rotate under the action of the drive mechanism 6, and then with the cooperation of the reciprocating mechanism 7, it will drive the rotating shaft 5, the first stirring blade 8 and the second stirring blade 9 to rotate continuously and move up and down reciprocally. As the second stirring blade 9 moves, it drives the striking ball 10 to move up and down, so that the striking ball 10 frequently strikes the filter plate 16, causing the filter plate 16 to vibrate, thereby reducing the probability of the filter plate 16 mesh being blocked, so as to ensure the filtration effect of the filter plate 16.

[0020] In another embodiment of this utility model, see Figure 5 The melting tank 1 comprises, from the inside out, an inner liner, a heating wire 11, and an outer liner. The inner liner is made of a metal material with good thermal conductivity, such as stainless steel. The heating wire 11 is spirally wound around the outer circumference of the inner liner and is located between the inner and outer liners. The outer liner is made of an insulating material, such as polyurethane foam. During operation, the stainless steel inner liner facilitates heat conduction and cleaning. The spiral design of the heating wire 11 allows heat to be transferred more evenly to the inner liner for better heating. The polyurethane foam outer liner provides insulation, reducing heat loss and enabling more effective melting of food-grade co-extruded film raw materials.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material melting device for multilayer co-extruded film production, comprising a melting tank (1), characterized in that: The lower end of the melting tank (1) is fixedly connected to a feed pipe (2), and a valve (3) is fixedly installed on the circumferential surface of the feed pipe (2). The upper end of the melting tank (1) is fixedly connected to a feed pipe (12) and a fixed frame (15). A rotating cylinder (14) is rotatably connected inside the fixed frame (15). A drive mechanism (6) is installed on the circumferential surface of the rotating cylinder (14), and the drive mechanism (6) is used to drive the rotating cylinder (14) to rotate. A rotating shaft (5) is provided inside the melting tank (1). A plurality of first stirring blades (8) and second stirring blades (9) are fixedly connected on the circumferential surface of the rotating shaft (5). A striking ball (10) is fixedly connected to the bottom end of the 9) and the bottom end of the rotating shaft (5). A filter plate (16) is fixedly connected to the inner wall of the melting tank (1), and the filter plate (16) is located at the lower end of the striking ball (10). The rotating shaft (5) passes through the melting tank (1) and the rotating cylinder (14) upwards. A number of protrusions (4) are fixedly connected to the circumferential surface of the rotating shaft (5). A number of sliding grooves that slide with the protrusions (4) are opened inside the rotating cylinder (14). A reciprocating mechanism (7) is installed on the top end of the melting tank (1) and the circumferential surface of the rotating shaft (5). The reciprocating mechanism (7) is used to drive the rotating shaft (5) to move up and down reciprocally.

2. The raw material melting device for multilayer co-extruded film production as described in claim 1, characterized in that: The feed pipe (12) is equipped with a sealing cap (13).

3. The raw material melting device for multilayer co-extruded film production as described in claim 1, characterized in that: The drive mechanism (6) includes a motor (601), a drive wheel (602), a timing belt (603), and a driven wheel (604). The motor (601) is placed on the upper end of the melting tank (1). The drive wheel (602) is fixedly connected to the output shaft end of the motor (601). The driven wheel (604) is fixedly connected to the circumferential surface of the rotating cylinder (14). The drive wheel (602) and the driven wheel (604) are connected by the timing belt (603).

4. The raw material melting device for multilayer co-extruded film production as described in claim 3, characterized in that: A heat insulation plate is fixedly installed on the upper end of the melting tank (1), and the motor (601) is fixedly installed on the upper end of the heat insulation plate.

5. The raw material melting device for multilayer co-extruded film production as described in claim 1, characterized in that: The reciprocating mechanism (7) includes a fixed plate (701), a moving wheel (702), a support plate (703), a telescopic rod (704), a spring (705), a ring track (706), a protrusion (707), and an inclined plane (708). The fixed plate (701) is fixedly connected to the circumference of the rotating shaft (5). The support plate (703) is rotatably connected to the lower end of the fixed plate (701). The rotating shaft (5) passes through the support plate (703). A through hole for the rotating shaft (5) to pass through is opened at the center of the support plate (703), and the diameter of the through hole is larger than the diameter of the rotating shaft (5). The bottom end of the support plate (703) is fixedly connected to... A spring (705) and a telescopic rod (704) are connected. The ends of the spring (705) and the telescopic rod (704) away from the support plate (703) are fixedly connected to the melting tank (1). A movable wheel (702) is fixedly connected to the bottom end of the fixed plate (701). A ring track (706) is fixedly connected to the top end of the melting tank (1). A protrusion (707) is fixedly connected to the upper end of the ring track (706). The protrusion (707) and the ring track (706) are an integral structure. An inclined surface (708) is provided on the upper end of the protrusion (707). The movable wheel (702) is located on the ring track (706).

6. The raw material melting device for multilayer co-extruded film production as described in claim 1, characterized in that: The melting tank (1) includes an inner liner, a heating wire (11) and an outer liner from the inside out. The inner liner is made of a metal material with good thermal conductivity, such as stainless steel. The heating wire (11) is spirally wound around the outer circumference of the inner liner and is located between the inner liner and the outer liner. The outer liner is made of heat-insulating material.

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