Waste recovery device for cast film production

Abstract

The utility model discloses a waste recovery device for cast film production, which belongs to the technical field of film production equipment, and comprises a rack arranged on the ground, the rack is provided with a waste separation component, a twisting component, a heating component and a cutting component which are used for enabling waste to pass through in sequence, the waste separation component is used for dividing two stacked waste into a plurality of strips along the width direction, and the twisting component is used for twisting the waste into a plurality of strips. The twisting assembly is used for guiding waste to be curled and twisted into a rope, the heating assembly is used for hot melting of the outer surface of the rope-shaped waste, and the cutting assembly is used for cutting the waste at equal intervals in the axis direction of the waste. According to the waste recovery device for cast film production, waste in the cast film production process sequentially passes through the waste separation assembly, the twisting assembly, the heating assembly and the cutting assembly, so that particles converted from the waste are uniform, internal pores of the cross section are large, an extruder can more easily mix and melt the recycled particles and new materials, and the production efficiency is improved. And the material uniformity of the cast film is improved.

Description

Technical Field

[0001] This utility model relates to the field of film production equipment technology, specifically a waste recycling device for cast film production. Background Technology

[0002] Cast film is a non-stretched, non-oriented flat extruded film produced by melt casting and rapid cooling process. However, due to the temperature gradient, the cast film will curl up on both sides as it cools down. Therefore, a cutter is usually added to the production line to cut off the curled edge structure at both ends of the cast film.

[0003] Existing technology typically involves first collecting the cast film, then crushing it into powder in a pulverizer before re-extruding it into an extruder.

[0004] However, the production of cast film is relatively continuous, which means that the two strips of waste material cut off from the cast film are usually quite long and take up a lot of factory space. However, the waste material fragments directly crushed by the shredder are too small and can easily pollute the air in the area when the equipment is running.

[0005] To address the above problems, a technical solution for a waste recycling device for cast film production is proposed. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a waste recycling device for cast film production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a waste recycling device for cast film production, comprising a frame installed on the ground, wherein the frame is provided with a waste separation component, a twisting component, a heating component, and a cutting component for the waste to pass through sequentially, the waste separation component is used to divide two stacked waste materials into several strips along the width direction, the twisting component is used to guide the waste material to curl and twist into rope, the heating component is used to heat melt the outer surface of the rope-like waste material, and the cutting component is used to cut the waste material at equal intervals along the axial direction of the waste material.

[0008] The present invention is further configured such that: the waste separation component includes a base fixedly connected to the frame, and a plurality of cutting blades arranged along the width direction of the waste are detachably connected to the base.

[0009] The present invention is further configured such that: a groove is provided on the base along the width direction of the waste material, and two adjusting members are provided in the groove to position the distance between them. The two adjusting members abut against the two side ends of the two waste materials, guiding the two waste materials to be cut in the same direction by several cutting blades.

[0010] The present invention is further configured such that: the twisting assembly includes a fixed twisting plate fixedly disposed on the frame, an offset twisting plate slidably disposed on the frame, and a driving component, wherein the driving component is used to drive the offset twisting plate to reciprocate to twist the waste material passing between it and the fixed twisting plate.

[0011] The present invention is further configured such that: the driving component includes a first motor fixedly mounted on the frame; the misaligned washboard is fixedly connected to a sliding frame slidably connected to the frame; the frame is rotatably connected to a turntable; the sliding frame has a guide groove; and a guide block is fixedly mounted on the turntable at a position away from its rotation axis.

[0012] When the first motor drives the turntable to rotate, the guide block guides the sliding frame to slide back and forth by abutting against the inner wall of the guide groove.

[0013] The present invention is further configured such that: the heating assembly includes two heating plates symmetrically arranged on both sides of the waste material, and the heating plates are positioned on the frame to adjust the gap between the two heating plates.

[0014] The present invention is further configured such that: a guide cavity is provided inside the frame; the cutting assembly includes a second motor fixedly connected to the frame; a plurality of first cutters are detachably connected evenly around the output end of the second motor extending into the guide cavity; the first cutters are arranged at intervals from the inner wall of the guide cavity; and a second cutter that can cut waste material with the first cutters is fixedly provided on the inner wall of the guide cavity.

[0015] The present invention is further configured such that: the inner wall of the guide cavity is fixedly provided with a blocking block to guide the cut waste material out of the guide cavity.

[0016] The present invention is further configured to include a high-pressure blower connected to the guide cavity via a pipeline, the high-pressure blower being fixedly mounted on the frame, the high-pressure blower being used to discharge the cut waste material, and an air solenoid valve being fixedly mounted on the frame, the air solenoid valve being connected to the pipeline.

[0017] In summary, this utility model has the following beneficial effects: by passing the waste material in the cast film production process through the waste separation component, the twisting component, the heating component and the cutting component in sequence, the waste material is converted into uniform particles with large internal pores in the cross section, making it easier for the extruder to mix and melt these reusable particles with new materials, thereby improving the material uniformity of the cast film. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the waste separation component of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the misaligned washboard, sliding frame, and turntable of this utility model;

[0021] Figure 4 This is a schematic diagram of the heating assembly of this utility model;

[0022] Figure 5 This is a cross-sectional view of the first cutter, the second cutter, and the blocking block of this utility model;

[0023] Figure 6 This is a cross-sectional view of the pipe of this utility model.

[0024] In the diagram: 1. Waste separation component; 11. Base; 111. Slide groove; 12. Cutting blade; 13. Adjusting component; 2. Twisting component; 21. First motor; 22. Fixed rubbing board; 23. Offset rubbing board; 24. Sliding frame; 241. Guide groove; 25. Turntable; 251. Guide block; 3. Heating component; 31. Heating plate; 4. Cutting component; 41. Second motor; 42. Air solenoid valve; 43. First cutter; 44. Second cutter; 45. Blocking block; 5. High-pressure blower. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Waste recycling equipment for cast film production, such as Figure 1 as well as Figure 5 As shown, it includes a frame set on the ground, on which are installed a waste separation component 1, a twisting component 2, a heating component 3, and a cutting component 4 for the waste to pass through in sequence.

[0027] like Figure 1 as well as Figure 2As shown, the waste materials on both sides of the cast film are first guided to the waste separation component 1 after being cut by the cutter. During the guidance process, the two waste materials can be stacked and gathered together by sliding against several sleeves that are respectively strung on the rod. The waste separation component 1 is used to divide the stacked two waste materials into several strips along the width direction. The waste separation component 1 includes a base 11 fixedly connected to the frame. Several cutting blades 12 arranged along the width direction of the waste materials are detachably connected to the base 11. By changing the spacing of the cutting blades 12, the width of each waste material after being cut can be changed. In order to improve the fit and alignment of the two waste materials when they are cut, a groove 111 is provided on the base 11 along the width direction of the waste materials. Two adjusting members 13 are provided in the groove 111 to position their spacing. The two adjusting members 13 guide the two waste materials to be cut in the same direction by several cutting blades 12 by abutting against the two sides of the two waste materials.

[0028] like Figure 1 as well as Figure 3 As shown, the twisting assembly 2 is used to guide the waste material to be rolled and twisted into a rope. The twisting assembly 2 includes a fixed twisting plate 22 fixedly mounted on the frame, a misaligned twisting plate 23 slidably mounted on the frame, and a driving component. The end faces of the fixed twisting plate 22 and the misaligned twisting plate 23 that are close to each other are highly elastic components with a vertical cross section of several semicircles. They are used to apply frictional force to the surface of the waste material during the misalignment process, so that each individual waste material is twisted and several waste materials are twisted around the axis, thereby winding several waste materials into a rope.

[0029] The driving component is used to drive the misaligned rubbing board 23 to reciprocate and rub the waste material passing between it and the fixed rubbing board 22. The driving component includes a first motor 21 fixedly mounted on the frame. The misaligned rubbing board 23 is fixedly connected to a sliding frame 24 that is slidably connected to the frame. The frame is rotatably connected to a turntable 25. The sliding frame 24 has a guide groove 241. A guide block 251 is fixedly mounted on the turntable 25 away from its rotation axis. When the first motor 21 drives the turntable 25 to rotate, the guide block 251 guides the sliding frame 24 to reciprocate by abutting against the inner wall of the guide groove 241.

[0030] like Figure 1 as well as Figure 4 As shown, the heating component 3 is used to heat melt the outer surface of the rope-shaped waste. By melting and adhering the outer surface of the rope-shaped waste together, the cross-section of the waste can be made into a hollow structure, which improves the efficiency of the extruder in melting it. The cutting component 4 is used to cut the waste at equal intervals along the axial direction of the waste. The heating component 3 includes two heating plates 31 symmetrically arranged on both sides of the waste. The heating plates 31 are positioned on the frame to adjust the gap between the two heating plates 31. At the same time, under the action of the twisting component 2, the rope-shaped waste can be rotated to make the surface heatd evenly, so that the thickness of the melt around the rope-shaped waste is uniform.

[0031] like Figure 1 as well as Figure 5 As shown, a guide cavity is provided inside the frame. The cutting assembly 4 includes a second motor 41 fixedly connected to the frame. Several first cutters 43 are detachably connected evenly around the output end of the second motor 41 that extends into the guide cavity. The first cutters 43 are spaced apart from the inner wall of the guide cavity. A second cutter 44 that can cut waste with the first cutters 43 is fixedly provided on the inner wall of the guide cavity. That is, when the molten material falls onto the surface of the first cutter 43, it will form an adhesion with the first cutter 43 and be divided by the action of the second cutter 44 under the guidance of the first cutter 43. In order to enable these cut waste materials to leave the guide cavity efficiently, a blocking block 45 is fixedly provided on the inner wall of the guide cavity to guide the cut waste materials to fall out of the guide cavity.

[0032] By sequentially passing the waste material from the cast film production process through the waste separation component 1, the twisting component 2, the heating component 3, and the cutting component 4, the waste material is converted into uniform particles with large internal pores in the cross section, making it easier for the extruder to mix and melt these reusable particles with new materials, thereby improving the material uniformity of the cast film.

[0033] like Figure 6 As shown, to make the device more compact, a high-pressure blower 5 is also fixedly installed on the frame, which is connected to the guide chamber through a pipe. The high-pressure blower 5 is used to discharge the cut waste material. The high-pressure blower 5 can quickly blow the waste material into the feed port of the extruder through the guide airflow. In addition, the high-speed gas can also make the molten waste material cool more quickly in the guide chamber. Considering the balance between the power of the high-pressure blower 5 and the distance between the device and the extruder, an air solenoid valve 42 is fixedly installed on the frame. The air solenoid valve 42 is connected to the pipe. By repeatedly opening and closing the air solenoid valve 42, the waste material can be fed into the extruder more efficiently when the air solenoid valve 42 is in the closed state, and when the air solenoid valve 42 is reopened, the waste material in the pipe can be sucked into the high-pressure blower 5.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste recycling device for cast film production, comprising a frame installed on the ground, characterized in that: The frame is equipped with a waste sorting component (1), a twisting component (2), a heating component (3), and a cutting component (4) through which the waste material passes in sequence. The waste sorting component (1) is used to divide two stacked waste materials into several strips along the width direction. The twisting component (2) is used to guide the waste material to curl and twist into rope. The heating component (3) is used to heat melt the outer surface of the rope-shaped waste material. The cutting component (4) is used to cut the waste material at equal intervals along the axial direction of the waste material.

2. The waste recycling device for cast film production according to claim 1, characterized in that: The waste separation component (1) includes a base (11) fixedly connected to the frame, and a plurality of cutting blades (12) arranged along the width direction of the waste are detachably connected to the base (11).

3. The waste recycling device for cast film production according to claim 2, characterized in that: The base (11) has a groove (111) along the width direction of the waste material. The groove (111) is provided with two adjusting members (13) that can position the distance between them. The two adjusting members (13) abut against the two sides of the two waste materials and guide the two waste materials to be cut by several cutting blades (12) in the same direction.

4. The waste recycling device for cast film production according to claim 1, characterized in that: The twisting assembly (2) includes a fixed twisting plate (22) fixedly mounted on the frame, a misaligned twisting plate (23) slidably mounted on the frame, and a driving component. The driving component is used to drive the misaligned twisting plate (23) to reciprocate and rub the waste material passing between it and the fixed twisting plate (22).

5. The waste recycling device for cast film production according to claim 4, characterized in that: The driving component includes a first motor (21) fixedly mounted on the frame, the misaligned washboard (23) is fixedly connected to a sliding frame (24) slidably connected to the frame, the frame is rotatably connected to a turntable (25), the sliding frame (24) is provided with a guide groove (241), and a guide block (251) is fixedly mounted on the turntable (25) at a position away from its rotation axis. When the first motor (21) drives the turntable (25) to rotate, the guide block (251) guides the sliding frame (24) to slide back and forth by abutting the inner wall of the guide groove (241).

6. The waste recycling device for cast film production according to claim 1, characterized in that: The heating assembly (3) includes two heating plates (31) symmetrically arranged on both sides of the waste material. The heating plates (31) are positioned on the frame to adjust the gap between the two heating plates (31).

7. The waste recycling device for cast film production according to claim 6, characterized in that: The frame is provided with a guide cavity. The cutting assembly (4) includes a second motor (41) fixedly connected to the frame. A plurality of first cutters (43) are detachably connected to the output end of the second motor (41) extending into the guide cavity. The first cutters (43) are arranged at intervals from the inner wall of the guide cavity. The inner wall of the guide cavity is fixedly provided with a second cutter (44) that can cut waste with the first cutters (43).

8. The waste recycling device for cast film production according to claim 7, characterized in that: The inner wall of the guide cavity is fixedly provided with a blocking block (45) to guide the cut waste material out of the guide cavity.

9. The waste recycling device for cast film production according to claim 7, characterized in that: It also includes a high-pressure blower (5) that is connected to the guide cavity through a pipe. The high-pressure blower (5) is fixedly installed on the frame. The high-pressure blower (5) is used to discharge the cut waste. An air solenoid valve (42) is fixedly installed on the frame and connected to the pipe.

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