A mixing mechanism of a film blowing machine

Abstract

The utility model discloses a kind of mixing mechanism of blown film machine, it is related to blown film machine mixing technical field, including mixed main body, the top of one side of mixed main body inner wall is rotatably connected with jacket bin, and mixed main body inner wall is fixedly connected with annular slope plate on the side close to jacket bin.The utility model is driven by the gear ring set on the outer wall of jacket bin, so that the jacket bin fixed in the inner wall of gear ring rotates under the limiting of mixed main body inner wall, in this process, in jacket bin, the slow melting of the granular raw material of the bottom and the contact with electric heating screen, and under the action of centrifugal force, along the arc-shaped discharge chute set on the inner wall of jacket bin close to the side of electric heating screen discharge, further solve the mixing mechanism of traditional blown film machine when using, due to the gap between granular raw material, lead to add powder raw material and liquid raw material in melting process, it is easy to cause the gap between granular raw material to produce cavity, thereby causing the influence to the finished product blown by subsequent blown film machine.

Description

Technical Field

[0001] This utility model relates to the field of material mixing technology for blown film machines, and specifically to a material mixing mechanism for a blown film machine. Background Technology

[0002] In the production of plastic film, the conveying of plastic raw materials is necessary, and this process is usually completed by a blown film machine. The blown film machine is suitable for feeding dry polyethylene particles into a hopper. The particles, by their own weight, enter the screw from the hopper. When the particles come into contact with the inclined screw threads, the rotating inclined threads generate a thrust perpendicular to the inclined plane, pushing the plastic particles forward. During this pushing process, the plastic gradually melts due to friction between the plastic and the screw, the plastic and the barrel, and collisions between particles, as well as external heating of the barrel. The molten plastic is filtered through the die head to remove impurities and exits from the die head. After being cooled by the air ring, inflated, and passed through the herringbone plate, traction rollers, and then wound up to form a finished film into a tube.

[0003] The existing technology has the following problems:

[0004] 1. In the existing blown film machine, the mixing mechanism has gaps between the granular raw materials. When powder and liquid raw materials are added during the melting process, cavities are easily created between the granular raw materials, and a large number of fine bubbles are generated during mixing, which affects the finished product blown by the blown film machine.

[0005] 2. During use, the mixing mechanism of the existing blown film machine causes some raw materials to clump together due to accumulation, resulting in uneven mixing. Utility Model Content

[0006] This invention provides a mixing mechanism for a blown film machine to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A mixing mechanism for a blown film machine includes a mixing body, a jacketed chamber rotatably connected to the top of one side of the inner wall of the mixing body, an annular slope plate fixedly connected to the side of the inner wall of the mixing body near the jacketed chamber, a mixing chamber fixedly connected to the bottom of the annular slope plate, a discharge pipe fixedly connected to the bottom of the mixing chamber, a first electric valve provided in the inner cavity of the discharge pipe, and a stirring assembly provided at one end of the top of the mixing body.

[0009] A further improvement of the present invention is that the stirring assembly includes a first motor fixedly connected to one end of the top of the mixing body, and a gear rod fixedly connected to the output end of the first motor. The top of the gear rod is rotatably connected to the top of one side of the inner wall of the mixing body. A gear ring meshes with the outer wall of the gear rod, and the inner wall of the gear ring is fixedly connected to the outer wall of the jacketed chamber. An electric heating screen is fixedly connected to the bottom of one side of the inner wall of the jacketed chamber, and an arc-shaped discharge trough is provided on the side of the inner wall of the jacketed chamber near the electric heating screen.

[0010] A further improvement of the present invention is that: a material distribution bin is fixedly connected to the top of the annular slope plate, and a material trough is opened at the center of the top of the material distribution bin, while a second electric valve is fixedly connected to the bottom of one side of the inner wall of the material trough.

[0011] A further improvement of the present invention is that: an inlet is provided on the top of the distribution bin near the material trough, a distribution chamber is provided at the top of the inner cavity of the distribution bin, and several outlets are provided in the middle of one side of the outer wall of the distribution bin.

[0012] A further improvement of the present invention is that: a guide block is fixedly connected to the bottom of one side of the inner wall of the material distribution bin, and a linkage bin is opened in the inner cavity of the guide block; a second motor is fixedly connected to one side of the inner wall of the linkage bin, and a cam is fixedly connected to the output end of the second motor; and a stirring rod is rotatably connected to one end of the outer wall of the cam.

[0013] A further improvement of the present invention is that: a limiting box is fixedly connected to the side of the inner wall of the linkage chamber away from the second motor, and the inner wall of the limiting box is slidably connected to the end of the outer wall of the stirring rod away from the cam; a limiting groove is opened in the middle of the outer wall of the stirring rod, and a limiting rod is slidably connected to the inner wall of the limiting groove; and the two ends of the outer wall of the limiting rod are fixedly connected to the side of the top of the annular slope plate near the distribution chamber.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a mixing mechanism for a blown film machine. By driving a toothed ring on the outer wall of the jacket, the jacket, which is fixed to the inner wall of the toothed ring, rotates under the limitation of the inner wall of the mixing body. During this process, the granular raw material at the bottom of the jacket, which is in contact with the electric heating screen, slowly melts and is discharged along the arc-shaped discharge trough on the inner wall of the jacket near the electric heating screen under the action of centrifugal force. This further solves the problem that in the traditional blown film machine mixing mechanism, due to the gaps between the granular raw materials, adding powder and liquid raw materials during the melting process can easily cause cavities between the granular raw materials and generate a large number of fine bubbles during mixing, which affects the finished product blown by the blown film machine.

[0016] 2. This utility model provides a mixing mechanism for a blown film machine. By setting a limiting rod on the side of the top of the annular slope plate near the material distribution bin, and the outer wall of the limiting rod passes through the limiting groove set in the middle of the outer wall of the stirring rod, the limiting rod is used to limit the stirring rod during the mixing process. Since the end of the stirring rod is equipped with stirring blades, and the stirring rod moves in a teardrop-shaped trajectory in the mixing bin, the problem of uneven mixing caused by the accumulation of raw materials in the mixing mechanism of traditional blown film machines is further solved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the material distribution bin of this utility model;

[0020] Figure 4 This is a schematic diagram of the jacketed compartment structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the stirring rod structure of this utility model.

[0022] In the diagram: 1. Mixing body; 2. Jacketed chamber; 3. Annular slope plate; 4. Mixing chamber; 5. Discharge pipe; 6. First electric valve; 7. First motor; 8. Gear rod; 9. Gear ring; 10. Electric heating mesh; 11. Arc-shaped discharge trough; 12. Distribution chamber; 13. Material trough; 14. Second electric valve; 15. Liquid inlet; 16. Distribution chamber; 17. Discharge port; 18. Guide block; 19. Linkage chamber; 20. Second motor; 21. Cam; 22. Stirring rod; 23. Limiting box; 24. Limiting groove; 25. Limiting rod. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] like Figures 1-5As shown, this utility model provides a mixing mechanism for a blown film machine, including a mixing body 1. A jacketed chamber 2 is rotatably connected to the top of one side of the inner wall of the mixing body 1, and an annular slope plate 3 is fixedly connected to the side of the inner wall of the mixing body 1 near the jacketed chamber 2. A mixing chamber 4 is fixedly connected to the bottom of the annular slope plate 3, and a discharge pipe 5 is fixedly connected to the bottom of the mixing chamber 4. A first electric valve 6 is provided in the inner cavity of the discharge pipe 5. A stirring assembly is provided at one end of the top of the mixing body 1. The stirring assembly includes a first motor 7 fixedly connected to one end of the top of the mixing body 1, and a gear rod 8 is fixedly connected to the output end of the first motor 7. The top of the gear rod 8 is rotatably connected to the top of one side of the inner wall of the mixing body 1. Next, a gear ring 9 meshes with the outer wall of the gear rod 8, and the inner wall of the gear ring 9 is fixedly connected to the outer wall of the jacketed chamber 2. An electric heating mesh 10 is fixedly connected to the bottom of one side of the inner wall of the jacketed chamber 2, and an arc-shaped discharge trough 11 is opened on the side of the inner wall of the jacketed chamber 2 near the electric heating mesh 10. A material distribution chamber 12 is fixedly connected to the top of the annular slope plate 3, and a material trough 13 is opened at the center of the top of the material distribution chamber 12. A second electric valve 14 is fixedly connected to the bottom of one side of the inner wall of the material trough 13. A liquid inlet 15 is opened on the side of the top of the material distribution chamber 12 near the material trough 13, and a liquid distribution chamber 16 is opened at the top of the inner cavity of the material distribution chamber 12. Several liquid outlets 17 are opened in the middle of one side of the outer wall of the material distribution chamber 12.

[0025] During operation, an annular ramp 3 is installed on one side of the inner wall of the mixing body 1, and a distribution bin 12 is installed on the top of the annular ramp 3. Powdered raw materials are temporarily stored in a material trough 13 located at the center of the top of the distribution bin 12. Then, liquid raw materials are poured into an inlet 15 located on the top of the distribution bin 12 near the material trough 13. The liquid raw materials flow slowly into a distribution chamber 16 located at the top of the inner cavity of the distribution bin 12 along the inlet 15, and are evenly discharged from several outlets 17 located in the middle of one side of the outer wall of the distribution bin 12. The liquid raw materials flow slowly along the outer wall of the distribution bin 12 until they drip onto the surface of the annular ramp 3. During this process, the cover plate on the top of the mixing body 1 is opened, and the granular raw materials are discharged. The material is poured into the jacketed hopper 2. The electric heating screen 10, located at the bottom of one side of the inner wall of the jacketed hopper 2, is activated to heat and melt the granular material. Simultaneously, a first motor 7 is installed at one end of the top of the mixing body 1. A gear rod 8 at the output end of the first motor 7, using the top of one side of the inner wall of the mixing body 1 as a fulcrum, drives a gear ring 9 on the outer wall of the jacketed hopper 2. This causes the jacketed hopper 2, fixed to the inner wall of the gear ring 9, to rotate under the constraint of the inner wall of the mixing body 1. During this process, the granular material at the bottom of the jacketed hopper 2, in contact with the electric heating screen 10, slowly melts and, under the action of centrifugal force, flows along the arc-shaped discharge chute 11 located on the inner wall of the jacketed hopper 2 near the electric heating screen 10. The melted granular material is discharged, allowing it to flow onto the surface of the annular slope plate 3 and come into contact with the liquid material flowing onto the surface of the distribution bin 12. As the liquid material and the melted granular material flow to the edge of the annular slope plate 3, the second electric valve 14 located at the bottom of one side of the inner wall of the material tank 13 is activated, causing the powder material temporarily stored in the material tank 13 to be slowly discharged. The powder material then slides down the surface of the guide block 18 located at the bottom of one side of the inner wall of the distribution bin 12, covering the surface of the liquid material and the melted granular material at the edge of the annular slope plate 3. Subsequently, it flows along the annular slope plate 3 into the mixing bin 4 located at its bottom. Then, the second motor 20 is activated, driving the stirring rod 22 to mix the three materials in the mixing bin 4. During the process of thorough mixing, granular raw materials, powdered raw materials, and liquid raw materials are continuously fed into the mixing chamber 4 according to the above-described operation. The fully mixed raw materials are then subjected to secondary mixing. During this process, a discharge pipe 5 is installed at the bottom of the mixing chamber 4, and the first electric valve 6 installed inside the discharge pipe 5 is opened, allowing the raw materials at the bottom of the mixing chamber 4 to be slowly discharged through the discharge pipe 5. This further solves the problem that in the traditional blown film machine, the mixing mechanism is prone to creating cavities between granular raw materials due to gaps between them. When powdered and liquid raw materials are added during the melting process, a large number of fine bubbles are generated during mixing, which affects the finished product blown by the blown film machine.

[0026] A guide block 18 is fixedly connected to the bottom of one side of the inner wall of the material distribution bin 12, and a linkage bin 19 is opened in the inner cavity of the guide block 18. A second motor 20 is fixedly connected to one side of the inner wall of the linkage bin 19, and a cam 21 is fixedly connected to the output end of the second motor 20. A stirring rod 22 is rotatably connected to one end of the outer wall of the cam 21. A limit box 23 is fixedly connected to the side of the inner wall of the linkage bin 19 away from the second motor 20, and the inner wall of the limit box 23 is slidably connected to the end of the outer wall of the stirring rod 22 away from the cam 21. A limit groove 24 is opened in the middle of the outer wall of the stirring rod 22, and a limit rod 25 is slidably connected to the inner wall of the limit groove 24. The two ends of the outer wall of the limit rod 25 are fixedly connected to the side of the top of the annular slope plate 3 near the material distribution bin 12.

[0027] During operation, a guide block 18 is installed at the bottom of one side of the inner wall of the distribution bin 12, and a linkage bin 19 is installed inside the guide block 18. A second motor 20 is installed on one side of the inner wall of the linkage bin 19. The second motor 20 is started and drives the cam 21 installed at its output end to rotate. Since a stirring rod 22 is installed at one end of the outer wall of the cam 21, and a limit box 23 is installed on the side of the inner wall of the linkage bin 19 away from the second motor 20, the limit rod 25 supports the end of the stirring rod 22 away from the cam 21, while the cam 21 drives the stirring rod 22 to move along the inner wall of the limit box 23. During this period, a limit rod 25 is installed on the top of the annular slope plate 3 near the distribution bin 12, and the outer wall of the limit rod 25 passes through the outer wall of the stirring rod 22. The limiting groove 24 is provided in the part, thereby limiting the stirring rod 22 during the stirring process by using the limiting rod 25. Since the end of the stirring rod 22 is provided with stirring blades, and the stirring rod 22 moves in a teardrop-shaped trajectory in the mixing chamber 4, when the stirring blades are at the bottom, the stirring blades move to the left and upward with the traction of the stirring rod 22. In this process, the raw materials accumulated at the bottom are carried and splashed onto one side of the inner wall of the mixing chamber 4, so that the raw materials completely cover the raw materials flowing on the inner wall of the mixing chamber 4 that have not yet been mixed, and then sink back into the mixing chamber 4. The cycle is repeated so that the raw materials are mixed in a layered manner, which further solves the problem of uneven mixing caused by the accumulation of raw materials in the mixing mechanism of traditional blown film machines.

[0028] The working principle of the mixing mechanism of this blown film machine will be explained in detail below.

[0029] like Figures 1-5As shown, an annular ramp 3 is provided on one side of the inner wall of the mixing body 1, and a distribution bin 12 is provided on the top of the annular ramp 3. Powder raw materials are temporarily stored in a material trough 13 provided at the center of the top of the distribution bin 12. Then, liquid raw materials are poured into an inlet 15 provided on the top of the distribution bin 12 near the material trough 13. The liquid raw materials flow slowly into the distribution chamber 16 provided on the top of the inner cavity of the distribution bin 12 along the inlet 15, and are evenly discharged from several drain ports 17 provided in the middle of one side of the outer wall of the distribution bin 12. The liquid raw materials flow slowly along the outer wall of the distribution bin 12 until they drip onto the surface of the annular ramp 3. During this period, the cover plate provided on the top of the mixing body 1 is opened, and the granular raw materials are poured out. The material is placed inside the jacketed hopper 2. An electric heating screen 10, located at the bottom of one side of the inner wall of the jacketed hopper 2, is activated to heat and melt the granular material. Simultaneously, a first motor 7, located at one end of the top of the mixing body 1, uses a gear rod 8 at its output end to drive a gear ring 9 on the outer wall of the jacketed hopper 2, with the top of one side of the inner wall of the mixing body 1 as a fulcrum. This causes the jacketed hopper 2, fixed to the inner wall of the gear ring 9, to rotate within the limits set by the inner wall of the mixing body 1. During this process, the granular material at the bottom of the jacketed hopper 2, in contact with the electric heating screen 10, slowly melts and, under centrifugal force, is discharged along the arc-shaped discharge trough 11 located on the inner wall of the jacketed hopper 2 near the electric heating screen 10. The melted granular material flows onto the surface of the annular ramp 3 and comes into contact with the liquid material flowing onto the surface of the distribution bin 12. As the liquid material and the melted granular material flow to the edge of the annular ramp 3, the second electric valve 14 located at the bottom of one side of the inner wall of the material tank 13 is activated, causing the powder material temporarily stored in the material tank 13 to be slowly discharged. The powder material then slides down the surface of the guide block 18 located at the bottom of one side of the inner wall of the distribution bin 12, covering the surface of the liquid material and the melted granular material at the edge of the annular ramp 3. Subsequently, it flows along the annular ramp 3 into the mixing bin 4 located at its bottom. Then, the second motor 20 is activated, driving the stirring rod 22 to mix the three materials in the mixing bin 4. During the process of thorough mixing, granular raw materials, powdered raw materials, and liquid raw materials are continuously fed into the mixing chamber 4 according to the above operation. The fully mixed raw materials are then stirred a second time. During this process, a discharge pipe 5 is installed at the bottom of the mixing chamber 4, and the first electric valve 6 installed in the inner cavity of the discharge pipe 5 is opened, so that the raw materials at the bottom of the mixing chamber 4 are slowly discharged through the discharge pipe 5. This further solves the problem that when the mixing mechanism of the traditional blown film machine is in use, the gaps between the granular raw materials cause cavities to be easily created between the granular raw materials when powdered and liquid raw materials are added during the melting process. This also generates a large number of fine bubbles during mixing, which affects the finished product blown by the blown film machine.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A mixing mechanism for a blown film machine, comprising a mixing body, characterized in that: A jacketed chamber is rotatably connected to the top of one side of the inner wall of the mixing body, and an annular slope plate is fixedly connected to the side of the inner wall of the mixing body near the jacketed chamber. A mixing chamber is fixedly connected to the bottom of the annular slope plate, and a discharge pipe is fixedly connected to the bottom of the mixing chamber. A first electric valve is provided in the inner cavity of the discharge pipe, and a stirring assembly is provided at one end of the top of the mixing body.

2. The mixing mechanism of a blown film machine according to claim 1, characterized in that: The stirring assembly includes a first motor fixedly connected to one end of the top of the mixing body, and a gear rod fixedly connected to the output end of the first motor. The top of the gear rod is rotatably connected to the top of one side of the inner wall of the mixing body. A gear ring meshes with the outer wall of the gear rod, and the inner wall of the gear ring is fixedly connected to the outer wall of the jacketed chamber. An electric heating screen is fixedly connected to the bottom of one side of the inner wall of the jacketed chamber, and an arc-shaped discharge trough is opened on the side of the inner wall of the jacketed chamber near the electric heating screen.

3. The mixing mechanism of a blown film machine according to claim 2, characterized in that: The top of the annular slope plate is fixedly connected to a material distribution bin, and a material trough is opened at the center of the top of the material distribution bin. A second electric valve is fixedly connected to the bottom of one side of the inner wall of the material trough.

4. The mixing mechanism of a blown film machine according to claim 3, characterized in that: The material distribution bin has an inlet on the top side near the material tank, a distribution chamber on the top of the inner cavity of the material distribution bin, and several outlets on the middle of one side of the outer wall of the material distribution bin.

5. The mixing mechanism of a blown film machine according to claim 4, characterized in that: A guide block is fixedly connected to the bottom of one side of the inner wall of the material distribution bin, and a linkage bin is opened in the inner cavity of the guide block. A second motor is fixedly connected to one side of the inner wall of the linkage bin, and a cam is fixedly connected to the output end of the second motor. A stirring rod is rotatably connected to one end of the outer wall of the cam.

6. The mixing mechanism of a blown film machine according to claim 5, characterized in that: A limiting box is fixedly connected to the inner wall of the linkage chamber away from the second motor, and the inner wall of the limiting box is slidably connected to the outer wall of the stirring rod away from the cam. A limiting groove is opened in the middle of the outer wall of the stirring rod, and a limiting rod is slidably connected to the inner wall of the limiting groove. The two ends of the outer wall of the limiting rod are fixedly connected to the top of the annular slope plate near the distribution chamber.

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