Film blowing machine for biodegradable plastic film

Abstract

The invention discloses a biodegradable plastic film blowing machine, and relates to the technical field of film blowing machines, the biodegradable plastic film blowing machine comprises a film blowing machine body, a cylindrical rolling bin is fixedly connected between two supporting frames, a telescopic hose is fixedly connected to the bottom of the rolling bin, and a funnel-shaped storage bin is fixedly connected to the end, away from the rolling bin, of the telescopic hose; the bottom of the storage bin extends into the feeding port, a grinding mechanism for smashing caked raw materials is arranged in the grinding bin, a heating mechanism for removing moisture of the raw materials is arranged in the storage bin, and an automatic stopping mechanism for preventing excessive raw materials from being stacked in the grinding bin is arranged at the top of the grinding bin. According to the film blowing machine, caked raw materials are crushed by utilizing the rotating grinding roller, so that the caked raw materials are crushed into small particles, the raw materials can smoothly enter the film blowing machine, meanwhile, the small-particle raw materials are heated and molten more uniformly in the film blowing machine, and the phenomenon that the non-uniformly molten raw materials block a film outlet head is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of film blowing machines, in particular to a film blowing machine for biodegradable plastic films. Background Art

[0002] The film blowing machine is a mechanical device used to produce plastic film. Its basic working principle is to extrude the molten plastic through an annular die to form a tubular film, which is then cooled by air and inflated to the desired width and thickness by wind force.

[0003] Film blowing machines are also applicable to the production of biodegradable plastic films, but raw materials that meet biodegradable standards must be selected, such as PLA (polylactic acid), PHA (polyhydroxyalkanoate), etc. PLA and PHA materials will be affected by humidity and temperature during long-term storage, causing PLA and PHA to agglomerate. Agglomerated PLA and PHA materials may block the feed port when entering the heating mechanism of the film blowing machine. At the same time, the agglomerated material melts slowly, which can easily cause blockage of the film outlet.

[0004] Therefore, the present invention provides a film blowing machine for biodegradable plastic film to make up for and improve the deficiencies of the prior art. Summary of the invention

[0005] In view of the above problems, the invention provides a film blowing machine for biodegradable plastic film, which can effectively solve the problem of agglomeration and clogging in the prior art. In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions:

[0006] The present invention discloses a film blowing machine for biodegradable plastic film, comprising a film blowing machine body, one end of the film blowing machine body is fixedly connected with a film blowing head, the other end of the film blowing machine body is provided with a feed inlet, a support frame is symmetrically fixedly connected with one side of the film blowing machine body close to the feed inlet, a cylindrical rolling bin is fixedly connected between the two support frames, a storage bin is arranged directly below the rolling bin, a rolling mechanism for breaking up agglomerated raw materials is arranged inside the rolling bin, a heating mechanism for removing moisture from the raw materials is arranged inside the storage bin, and an automatic material stopping mechanism for preventing excessive accumulation of raw materials in the rolling bin is arranged on the top of the rolling bin;

[0007] The rolling mechanism includes a sieve plate fixedly connected to the inside of a rolling bin, a rotating shaft vertically connected to the inside of the rolling bin, rolling rollers symmetrically connected to the outside of the rotating shaft, two rolling rollers tightly fit against the upper surface of the sieve plate, and a beating component for preventing the sieve plate from being blocked is also provided on the lower surface of the sieve plate.

[0008] Furthermore, the beating assembly includes a fixed block fixedly connected to the lower surface of the screen plate, and the fixed block is symmetrically rotatably connected with a rotating shaft on both sides, and the two extended ends of the rotating shaft extend into the cavity of the fixed block, and each extended end of the rotating shaft is fixedly connected with a first bevel gear, and the bottom extended end of the rotating shaft extends into the cavity of the fixed block, and the extended end of the rotating shaft is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the two first bevel gears, and each rotating shaft surface is equidistantly fixedly connected with a plurality of connecting rods, and each connecting rod is fixedly connected with a metal block at one end away from the rotating shaft.

[0009] Furthermore, a telescopic hose is fixedly connected to the bottom of the rolling bin, and one end of the telescopic hose away from the rolling bin is fixedly connected to the top of the storage bin. The bottom of the storage bin extends to the inside of the feed port, and the storage bin is slidably connected to the film blowing machine body.

[0010] Furthermore, the heating mechanism includes vertical rods symmetrically and vertically passing through the storage bin, a heating rod is fixedly connected to the surface of each vertical rod, a first gear is fixedly connected to the top of each vertical rod, the two first gears are meshed with each other, the first gear is fixedly connected to the output end of the external motor, and an auxiliary component is arranged outside the storage bin to stably input the raw materials into the film blowing machine body.

[0011] Furthermore, the auxiliary component includes an outer shell body symmetrically fixedly connected to the outside of the storage bin, the two outer shell bodies are interconnected with the storage bin, each of the outer shell bodies is vertically rotatably connected to a transmission shaft, each of the transmission shafts is fixedly connected to a rotating block on the outside, and each of the rotating blocks is fixedly connected to a spiral bar on the outside.

[0012] Furthermore, the rotating block is in a truncated cone shape, each of the spiral strips protrudes outward along the side of the rotating block, the two transmission shafts and the two vertical rods are located corresponding to each other, and the top of the transmission shaft is fixedly connected to the bottom of the vertical rod.

[0013] Furthermore, the automatic material stopping mechanism includes a feed hopper fixedly connected to the top of the rolling bin, the feed hopper and the rolling bin are interconnected, the bottom of the feed hopper is horizontally rotatably connected to a cylindrical rotating body, and a feed hole is opened on the side of the rotating body.

[0014] Furthermore, the automatic material stopping mechanism also includes an extension shaft fixedly connected to one end of the rotating body, the extension shaft is fixedly connected to a lever at one end away from the rotating body, the lever is rotatably connected to a guide rod at one end away from the extension shaft, the guide rod is rotatably connected to a storage bin at one end away from the lever, and a driving component for driving the rotating body to rotate is arranged on the outside of the support frame.

[0015] Furthermore, the driving assembly includes a cross bar symmetrically fixedly connected to the outside of the storage bin, a vertical slide groove is opened in the middle of the support frame, the cross bar slides through the slide groove, each side of the support frame is symmetrically and rotatably connected with a hook, a tension spring is fixedly connected between the two hooks, the protrusions of the two hooks are located at the bottom of the cross bar, and a spring is fixedly connected to the outside of the cross bar, and the spring is fixedly connected to the side of the support frame at one end away from the cross bar.

[0016] Furthermore, the top of the storage bin is fixedly connected to an exhaust pipe, the exhaust pipe and the storage bin are interconnected, and one end of the exhaust pipe away from the storage bin is fixedly connected to a conical bucket.

[0017] Beneficial effects:

[0018] 1. This device is equipped with a rolling mechanism. After the agglomerated raw materials enter the rolling bin, the rotating rolling roller is used to crush the agglomerated raw materials into smaller particles, so that the raw materials can enter the film blowing machine smoothly. At the same time, the small particles of raw materials are heated and melted more evenly in the film blowing machine, avoiding the unevenly melted raw materials from clogging the film head.

[0019] 2. This device is equipped with a beating component. While crushing the agglomerated raw materials, the metal blocks continuously hit the screen plate, causing the screen plate to vibrate continuously. The vibrating screen plate can sort out small particles of raw materials to prevent unqualified raw materials from entering the film blowing machine. At the same time, the vibrating screen plate can eject the raw materials that block the screen holes, thereby avoiding the problem of a decrease in the raw material sorting speed due to screen plate blockage.

[0020] 3. This device is equipped with a heating mechanism. Qualified raw materials sorted by the sieve plate enter the storage bin. The vertical rod drives the heating rod to stir the raw materials. The heating rod stirs the raw materials so that the raw materials can be fully heated, which improves the uniformity of heating of the raw materials. The moisture absorbed by the raw materials after heating is vaporized and discharged from the storage bin through the exhaust pipe, thereby reducing the moisture content of the raw materials, avoiding bubbles after the raw materials are melted, and improving the production quality of plastic films.

[0021] 4. This device is equipped with auxiliary components. The rotating block drives the spiral strip to rotate synchronously. On the one hand, the rotation of the spiral strip can stir and push the raw materials, so that the raw materials can move continuously at the bottom of the storage bin, reducing the possibility of adhesion and agglomeration of the raw materials in the storage bin after being heated, thereby improving the fluidity of the raw materials. On the other hand, the rotation of the spiral strip can rub and impact the blocked parts that have already occurred, destroy the blocked structure, and restore the flow of the raw materials to achieve the effect of preventing blockage and ensuring that the raw materials can smoothly enter the film blowing machine from the storage bin.

[0022] 5. This device is equipped with an automatic material stopping mechanism. When the storage bin is full of raw materials, the storage bin moves downward to drive the rotating body to rotate ninety degrees, thereby rotating the feed hole to one side. This can prevent the raw materials in the feed hopper from entering the rolling bin, thereby avoiding the accumulation of raw materials in the rolling bin and preventing the accumulated raw materials from adding load to the rolling mechanism and causing damage to the rolling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a three-dimensional structural diagram of the present invention from a first viewing angle.

[0025] Figure 2 It is a three-dimensional structural diagram of the rolling bin and the storage bin of the present invention.

[0026] Figure 3 For the present invention Figure 2 A magnified view of the structure at center.

[0027] Figure 4 It is a cross-sectional view of the rolling mechanism in the present invention.

[0028] Figure 5 It is a cross-sectional view of the flapping assembly in the present invention.

[0029] Figure 6 It is a three-dimensional structural diagram of the heating mechanism in the present invention.

[0030] Figure 7 For the present invention Figure 6 A magnified view of the structure at B in the middle

[0031] Figure 8 It is a longitudinal cross-sectional view of the auxiliary component in the present invention.

[0032] Fig. 9 It is an exploded view of the automatic material stopping mechanism in the present invention.

[0033] Fig.10 It is a schematic diagram of the connection between the rotating shaft, the connecting rod and the metal block in the present invention.

[0034] The numbers in the figure represent: 1. Film blowing machine body; 2. Film blowing head; 3. Feed inlet; 4. Support frame; 5. Rolling bin; 6. Storage bin; 7. Rolling mechanism; 71. Rotating shaft; 72. Rolling roller; 73. Screen plate; 74. Beating assembly; 741. Fixed block; 742. Rotating shaft; 743. Connecting rod; 744. Metal block; 745. First bevel gear; 746. Second bevel gear; 8. Heating mechanism; 81. Vertical rod; 82. Heating rod; 83. The first gear; 84, auxiliary component; 841, outer shell; 842, transmission shaft; 843, rotating block; 844, spiral strip; 9, automatic material stop mechanism; 91, feed hopper; 92, rotating body; 93, feed hole; 94, extension shaft; 95, lever; 96, guide rod; 97, drive component; 971, cross bar; 972, slide groove; 973, hook; 974, tension spring; 975, spring; 10, telescopic hose; 11, exhaust pipe; 12, conical bucket. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] The present invention will be further described below in conjunction with the embodiments.

[0037] See also Figures 1 to 10 A film blowing machine for biodegradable plastic film in this embodiment includes a film blowing machine body 1, a film blowing head 2 is fixedly connected to one end of the film blowing machine body 1, a feed port 3 is opened at the other end of the film blowing machine body 1, a support frame 4 is symmetrically fixedly connected to one side of the film blowing machine body 1 close to the feed port 3, a cylindrical rolling bin 5 is fixedly connected between the two support frames 4, a storage bin 6 is arranged directly below the rolling bin 5, a rolling mechanism 7 for breaking up agglomerated raw materials is arranged inside the rolling bin 5, a heating mechanism 8 for removing moisture from the raw materials is arranged inside the storage bin 6, and an automatic material stopping mechanism 9 is arranged on the top of the rolling bin 5 to prevent excessive accumulation of raw materials in the rolling bin 5.

[0038] See also Figure 1 , Figure 2 and Figure 4The rolling mechanism 7 includes a sieve plate 73 fixedly connected to the inside of the rolling bin 5, a rotating shaft 71 is vertically connected to the inside of the rolling bin 5, and a rolling roller 72 is symmetrically connected to the outside of the rotating shaft 71, and the two rolling rollers 72 are tightly fitted to the upper surface of the sieve plate 73. The lower surface of the sieve plate 73 is also provided with a beating assembly 74 for preventing the sieve plate 73 from being blocked. The rotating shaft 71 is connected to the output end of the external motor, and the rotating shaft 71 is powered by the external motor.

[0039] During specific operation, after the raw materials enter the inside of the rolling bin 5, the raw materials first fall on the upper surface of the sieve plate 73, and the motor drives the rotating shaft 71 to rotate. The rotating rotating shaft 71 drives the two rolling rollers 72 to rotate synchronously, and the rotating rolling rollers 72 crush the agglomerated raw materials on the upper surface of the sieve plate 73, and the crushed raw materials fall from the sieve holes of the sieve plate 73 to the bottom of the rolling bin 5.

[0040] See also Figure 1 , Figure 5 and Fig.10 The beating assembly 74 includes a fixed block 741 fixedly connected to the lower surface of the sieve plate 73, and the fixed block 741 is symmetrically rotatably connected with a rotating shaft 742 on both sides, and the two extended ends of the rotating shaft 742 are extended into the cavity of the fixed block 741, and each extended end of the rotating shaft 742 is fixedly connected with a first bevel gear 745, and the bottom extended end of the rotating shaft 71 extends into the cavity of the fixed block 741, and the extended end of the rotating shaft 71 is fixedly connected with a second bevel gear 746, and the second bevel gear 746 is meshed with the two first bevel gears 745, and each rotating shaft 742 surface is equidistantly fixedly connected with a plurality of connecting rods 743, and each connecting rod 743 is fixedly connected with a metal block 744 at one end away from the rotating shaft 742. The connecting rod 743 is made of nylon rope.

[0041] During specific operation, when the agglomerated raw materials are crushed, the rotating shaft 71 synchronously drives the second bevel gear 746 to rotate. Since the second bevel gear 746 is meshed with the first bevel gear 745, the rotating shaft 71 synchronously drives the two rotating shafts 742 to rotate. When the two rotating shafts 742 rotate, the metal block 744 at one end of the connecting rod 743 moves away from the rotating shaft 742 under the action of centrifugal force, so that the metal block 744 continuously hits the lower surface of the sieve plate 73, and the sieve plate 73 vibrates when hit. The vibrating sieve plate 73 can sort out the crushed small particle raw materials to prevent unqualified raw materials from entering the film blowing machine. At the same time, the vibrating sieve plate 73 can eject the raw materials that block the sieve holes, thereby avoiding the problem of the sieve plate 73 being blocked and causing the raw material sorting speed to decrease. The raw materials passing through the sieve plate 73 enter the storage bin 6 from the telescopic hose 10.

[0042] See also Figure 1 , Figure 2 , Figure 6 and Figure 8The heating mechanism 8 includes vertical rods 81 symmetrically and vertically passing through the storage bin 6, a heating rod 82 is fixedly connected to the surface of each vertical rod 81, a first gear 83 is fixedly connected to the top of each vertical rod 81, two first gears 83 are meshed with each other, the first gear 83 is fixedly connected to the output end of the external motor, and an auxiliary component 84 for stably inputting raw materials into the film blowing machine body 1 is arranged outside the storage bin 6. One of the vertical rods 81 is also fixedly connected to the output end of another external motor, and the heating rod 82 is also heated by electric heating.

[0043] During specific operation, an external motor drives the vertical rod 81 to rotate, and the two meshing first gears 83 drive the two vertical rods 81 to rotate in opposite directions. The two vertical rods 81 drive the heating rod 82 to stir the raw materials entering the storage bin 6. The heating rod 82 stirs the raw materials so that the raw materials can be fully heated, thereby improving the uniformity of heating of the raw materials. The moisture absorbed by the raw materials after heating is vaporized and discharged from the storage bin 6 from the exhaust pipe 11, thereby reducing the moisture content of the raw materials.

[0044] See also Figure 6 and Figure 8 The auxiliary component 84 includes an outer shell 841 symmetrically fixedly connected to the outside of the storage bin 6. The two outer shells 841 are interconnected with the storage bin 6. Each outer shell 841 is vertically rotatably connected to a transmission shaft 842. Each transmission shaft 842 is fixedly connected to a rotating block 843 on the outside. Each rotating block 843 is fixedly connected to a spiral bar 844 on the outside.

[0045] The rotating block 843 is in a truncated cone shape, and each spiral strip 844 protrudes outward along the side of the rotating block 843 . The two transmission shafts 842 and the two vertical rods 81 are located corresponding to each other, and the top of the transmission shaft 842 is fixedly connected to the bottom of the vertical rod 81 .

[0046] During specific operation, while the two vertical rods 81 are rotating, the two vertical rods 81 synchronously drive the transmission shaft 842 to rotate, and the transmission shaft 842 synchronously drives the truncated cone-shaped rotating block 843 to rotate, and the spiral bars 844 on the side of the rotating block 843 rotate synchronously. In the process of the raw materials in the storage bin 6 entering the film blowing machine body 1, the rotation of the spiral bars 844 can stir and push the raw materials, so that the raw materials continue to move at the bottom of the storage bin 6, thereby improving the fluidity of the raw materials. At the same time, the rotation of the spiral bars 844 can rub and impact the blocked parts that have already occurred, destroy the blocked structure, and allow the raw materials to resume flow, thereby achieving the effect of preventing blockage and ensuring that the raw materials can smoothly enter the film blowing machine from the storage bin 6.

[0047] See also Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig. 9The automatic material stopping mechanism 9 includes a feed hopper 91 fixedly connected to the top of the rolling bin 5. The feed hopper 91 is connected to the rolling bin 5. The bottom of the feed hopper 91 is horizontally rotatably connected to a cylindrical rotating body 92, and a feed hole 93 is opened on the side of the rotating body 92.

[0048] The automatic material stopping mechanism 9 also includes an extension shaft 94 fixedly connected to one end of the rotating body 92, and the extension shaft 94 is fixedly connected to a lever 95 at one end away from the rotating body 92, and the lever 95 is rotatably connected to a guide rod 96 at one end away from the extension shaft 94, and the guide rod 96 is rotatably connected to the storage bin 6 at one end away from the lever 95, and a driving component 97 for driving the rotating body 92 to rotate is arranged on the outer side of the support frame 4.

[0049] During specific operation, when the storage bin 6 is full of raw materials, the storage bin 6 descends, and the storage bin 6 drives the lever 95 to rotate ninety degrees through the guide rod 96. The lever 95 synchronously drives the rotating body 92 to rotate ninety degrees through the extension shaft 94, and the feed hole 93 of the rotating body 92 synchronously rotates ninety degrees, thereby cutting off the passage for the raw materials in the feed hopper 91 to enter the rolling bin 5. At this time, the raw materials in the feed hopper 91 stop entering the rolling bin 5, avoiding the accumulation of raw materials in the rolling bin 5, and avoiding the accumulated raw materials to increase the load on the rolling mechanism 7, causing damage to the rolling mechanism 7.

[0050] See also Figure 3 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 The driving assembly 97 includes a cross bar 971 symmetrically fixedly connected to the outside of the storage bin 6, a vertical slide groove 972 is opened in the middle of the support frame 4, the cross bar 971 slides through the slide groove 972, and each side of the support frame 4 is symmetrically rotatably connected with a hook 973, and a tension spring 974 is fixedly connected between the two hooks 973. The protrusions of the two hooks 973 are located at the bottom of the cross bar 971, and a spring 975 is fixedly connected to the outside of the cross bar 971. The end of the spring 975 away from the cross bar 971 is fixedly connected to the side of the support frame 4.

[0051] A telescopic hose 10 is fixedly connected to the bottom of the rolling bin 5, and one end of the telescopic hose 10 away from the rolling bin 5 is fixedly connected to the top of the storage bin 6. The bottom of the storage bin 6 extends to the inside of the feed port 3, and the storage bin 6 is slidably connected to the film blowing machine body 1.

[0052] During specific operation, when the raw materials enter the crushing bin 5 from the feed hopper 91, at this time, the storage bin 6 is located at the highest point of the chute 972, and the cross bars 971 at both ends of the storage bin 6 are hung by the hooks 973; when the storage bin 6 is full of raw materials, the total weight of the storage bin 6 and the raw materials exceeds the clamping force limit of the hooks 973, so that the storage bin 6 moves downward along the chute 972, and the downward moving storage bin 6 drives the rotating body 92 to rotate ninety degrees, cutting off the passage for the raw materials in the feed hopper 91 to enter the crushing bin 5. At this time, the raw materials in the feed hopper 91 stop entering the crushing bin 5, and when the storage bin 6 moves downward, the storage bin 6 pulls the spring 975 to accumulate force through the cross bar 971. When the raw materials in the storage bin 6 are completely used up, at this time, the storage bin 6 is pulled upward under the pulling force of the spring 975, so that the cross bar 971 is hooked by the hook 973 again.

[0053] See also Figure 6 and Fig. 9 The top of the storage bin 6 is fixedly connected to an exhaust pipe 11 , the exhaust pipe 11 is communicated with the storage bin 6 , and one end of the exhaust pipe 11 away from the storage bin 6 is fixedly connected to a conical bucket 12 .

[0054] During specific operation, when the raw materials in the storage bin 6 are heated, moisture is discharged from the exhaust pipe 11. After heating, additives such as plasticizers, stabilizers, fillers and pigments can be added from the conical bucket 12 to meet specific physical property requirements or improve processing performance. These additives are fully mixed with the raw materials through the stirring of the heating rod 82.

[0055] Working principle:

[0056] First, move the storage bin 6 to the highest point of the chute 972 and fix it with the hook 973. At this time, the feed hopper 91 and the crushing bin 5 are connected to each other, and the raw materials in the feed hopper 91 pass through the feed hole 93 into the crushing bin 5. The agglomerated raw materials in the crushing bin 5 are crushed by the crushing mechanism 7. After the crushed raw materials are sorted by the sieve plate 73, the qualified raw materials enter the storage bin 6 from the telescopic hose 10. In this process, the flapping component 74 prevents the sieve plate 73 from being blocked. The raw materials in the storage bin 6 are dehydrated by the heating mechanism 8. After the storage bin 6 is full of raw materials, the total weight of the storage bin 6 and the raw materials exceeds the clamping force limit of the hook 973, thereby making the storage bin 6 moves downward along the slide groove 972, and the downward moving storage bin 6 drives the rotating body 92 to rotate ninety degrees, cutting off the passage of the raw materials in the feed hopper 91 entering the rolling bin 5. At this time, the raw materials in the feed hopper 91 stop entering the rolling bin 5. Finally, the auxiliary component 84 stirs and pushes the raw materials, so that the raw materials continue to move at the bottom of the storage bin 6, improve the fluidity of the raw materials, rub and impact the blocked parts that have been generated, destroy the blocked structure, and make the raw materials resume flow, so as to achieve the effect of preventing blockage, ensure that the raw materials can smoothly enter the film blowing machine from the storage bin 6, and the raw materials processed by the film blowing machine are processed into plastic film from the film blowing head 2.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A film blowing machine for biodegradable plastic film, characterized in that: The film blowing machine comprises a film blowing machine body (1), one end of which is fixedly connected to a film blowing head (2), the other end of which is provided with a feed port (3), a support frame (4) is symmetrically fixedly connected to one side of the film blowing machine body (1) close to the feed port (3), a cylindrical rolling bin (5) is fixedly connected between the two support frames (4), a storage bin (6) is arranged directly below the rolling bin (5), a rolling mechanism (7) for breaking up agglomerated raw materials is arranged inside the rolling bin (5), a heating mechanism (8) for removing moisture from the raw materials is arranged inside the storage bin (6), and an automatic material stopping mechanism (9) for preventing excessive accumulation of raw materials in the rolling bin (5) is arranged on the top of the rolling bin (5); The rolling mechanism (7) comprises a sieve plate (73) fixedly connected to the inside of a rolling bin (5); a rotating shaft (71) is vertically rotatably connected to the inside of the rolling bin (5); rolling rollers (72) are symmetrically rotatably connected to the outside of the rotating shaft (71); the two rolling rollers (72) are tightly fitted to the upper surface of the sieve plate (73); and a beating component (74) is also provided on the lower surface of the sieve plate (73) for preventing the sieve plate (73) from being blocked.

2. A film blowing machine for biodegradable plastic film according to claim 1, characterized in that: The beating assembly (74) includes a fixed block (741) fixedly connected to the lower surface of the screen plate (73), and the fixed block (741) is symmetrically rotatably connected to a rotating shaft (742) on both sides. The extended ends of the two rotating shafts (742) extend into the cavity of the fixed block (741), and each extended end of the rotating shaft (742) is fixedly connected to a first bevel gear (745). The bottom extended end of the rotating shaft (71) extends into the cavity of the fixed block (741), and the extended end of the rotating shaft (71) is fixedly connected to a second bevel gear (746), and the second bevel gear (746) is meshed with the two first bevel gears (745). A plurality of connecting rods (743) are equidistantly fixedly connected to the surface of each rotating shaft (742), and each connecting rod (743) is fixedly connected to a metal block (744) at one end away from the rotating shaft (742).

3. The film blowing machine for biodegradable plastic film according to claim 1, characterized in that: A telescopic hose (10) is fixedly connected to the bottom of the rolling bin (5), and one end of the telescopic hose (10) away from the rolling bin (5) is fixedly connected to the top of the storage bin (6). The bottom of the storage bin (6) extends to the inside of the feed port (3), and the storage bin (6) is slidably connected to the film blowing machine body (1).

4. The film blowing machine for biodegradable plastic film according to claim 1, characterized in that: The heating mechanism (8) comprises vertical rods (81) symmetrically and vertically penetrating the storage bin (6), a heating rod (82) being fixedly connected to the surface of each vertical rod (81), a first gear (83) being fixedly connected to the top of each vertical rod (81), two first gears (83) being meshed with each other, the first gear (83) being fixedly connected to the output end of an external motor, and an auxiliary component (84) for stably inputting raw materials into the film blowing machine body (1) being arranged outside the storage bin (6).

5. The film blowing machine for biodegradable plastic film according to claim 4, characterized in that: The auxiliary component (84) includes an outer shell (841) symmetrically fixedly connected to the outside of the storage bin (6), the two outer shells (841) are interconnected with the storage bin (6), each of the outer shells (841) is vertically rotatably connected to a transmission shaft (842), each of the transmission shafts (842) is externally fixedly connected to a rotating block (843), and each of the rotating blocks (843) is externally fixedly connected to a spiral strip (844).

6. The film blowing machine for biodegradable plastic film according to claim 5, characterized in that: The rotating block (843) is in a truncated cone shape, each of the spiral strips (844) protrudes outward along the side of the rotating block (843), the two transmission shafts (842) and the two vertical rods (81) are located corresponding to each other, and the top of the transmission shaft (842) is fixedly connected to the bottom of the vertical rod (81).

7. The film blowing machine for biodegradable plastic film according to claim 1, characterized in that: The automatic material stopping mechanism (9) comprises a feed hopper (91) fixedly connected to the top of the rolling bin (5), the feed hopper (91) and the rolling bin (5) being interconnected, the bottom of the feed hopper (91) being horizontally rotatably connected to a cylindrical rotating body (92), and a feed hole (93) being provided on the side of the rotating body (92).

8. The film blowing machine for biodegradable plastic film according to claim 7, characterized in that: The automatic material stopping mechanism (9) further comprises an extension shaft (94) fixedly connected to one end of the rotating body (92); an end of the extension shaft (94) away from the rotating body (92) is fixedly connected to a lever (95); an end of the lever (95) away from the extension shaft (94) is rotatably connected to a guide rod (96); an end of the guide rod (96) away from the lever (95) is rotatably connected to a material storage bin (6); and a driving assembly (97) for driving the rotating body (92) to rotate is arranged on the outer side of the support frame (4).

9. The film blowing machine for biodegradable plastic film according to claim 8, characterized in that: The driving assembly (97) includes a cross bar (971) symmetrically fixedly connected to the outside of the storage bin (6), a vertical slide groove (972) is opened in the middle of the support frame (4), the cross bar (971) slides through the slide groove (972), each side of the support frame (4) is symmetrically rotatably connected with a hook (973), a tension spring (974) is fixedly connected between the two hooks (973), the protrusions of the two hooks (973) are located at the bottom of the cross bar (971), and a spring (975) is fixedly connected to the outside of the cross bar (971), and the spring (975) is fixedly connected to the side of the support frame (4) at one end away from the cross bar (971).

10. The film blowing machine for biodegradable plastic film according to claim 1, characterized in that: The top of the material storage bin (6) is fixedly connected to an exhaust pipe (11), the exhaust pipe (11) and the material storage bin (6) are in communication with each other, and one end of the exhaust pipe (11) away from the material storage bin (6) is fixedly connected to a conical bucket (12).

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