Waste recycling mechanism of film calender

Abstract

The invention discloses a waste recycling mechanism of a film calender, and relates to the technical field of film waste utilization, the waste recycling mechanism comprises a recycling box body, frozen gas input ports are formed in two sides of the recycling box body, a deformation assembly is arranged in the recycling box body, a cleaning box is connected below the recycling box body, and a cutting tool is further arranged in the recycling box body; the deformation assembly is used for enabling the thin film waste materials in the plane state to generate spatial dimension deformation to form a three-dimensional deformation structure with a preset volume, the surfaces of the thin film waste materials are bent and shaped to be in an arc-shaped state, and after the multiple arc-shaped thin film waste materials meet water, due to the fact that the surfaces of the arc-shaped thin film waste materials are in the arc-shaped state, two or more thin films cannot be well attached. The arc-shaped surface reduces the contact surface, avoids the phenomenon that an air adhesion layer is easily formed in water when meeting water, so that pseudo adhesion between films is generated through bubble bridging, improves the cleaning efficiency, and improves the film waste recovery and treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of film waste utilization, in particular to a waste recycling mechanism of a film calender. Background Art

[0002] Waste from film calendering machines typically includes scraps, substandard film, or defective products from the production process. Scraps are a major source of waste. When slitting or cutting film, unusable edges often need to be removed, creating scrap. Poor tension control during the winding process can cause the film to wrinkle or break, also resulting in waste. Film waste requires physical recycling, which involves cleaning, crushing, and re-granulating the waste material before incorporating it into new material.

[0003] When film waste is recycled and cleaned, an air attachment layer is easily formed in the water, and the fragments are bridged by bubbles to produce "pseudo-adhesion", resulting in the film waste being unable to be cleaned to the adhesion surface. In addition, the surface of the film waste carries static electricity, and film wastes with opposite charges will also adsorb each other, and they will be adsorbed together before entering the cleaning process, increasing the difficulty of cleaning. Summary of the Invention

[0004] The purpose of the present invention is to provide a waste recycling mechanism for a film calender, which has an arc-shaped surface. Two or more films cannot fit well together. The arc-shaped surface reduces the contact area, avoiding the formation of an air adhesion layer in water, which causes pseudo-adhesion between the films through bubble bridging, thereby improving the cleaning efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a waste recycling mechanism for a film calender, comprising:

[0006] The recovery box has refrigeration gas input ports on both sides, a deformation component is provided in the recovery box, a cleaning box is connected to the bottom of the recovery box, and a cutting tool is also provided in the recovery box;

[0007] The deformation component is used to deform the planar film waste material into a spatial dimension to form a three-dimensional deformation structure with a predetermined volume;

[0008] The refrigerated gas input port is configured to continuously transport cold medium into the recovery box, so that the deformed film waste is frozen and brittle in a three-dimensional deformation state, so that the film waste entering the cleaning box forms a three-dimensional form with an alternating concave and convex structure on the surface. The curvature change of the three-dimensional form is configured to reduce the contact area between adjacent films when they move in the cleaning box.

[0009] Furthermore, a high-pressure flushing structure and a cleaning and stirring structure are provided in the cleaning box.

[0010] Furthermore, the deformation component includes an upper template capable of pressing downward and a conveying plate that cooperates with the upper template to press, and the upper template and the conveying plate are provided with protrusions for deforming the film waste on the opposite surfaces.

[0011] Furthermore, a driving structure for driving the conveying plate to move and feed materials is provided in the recovery box, and a push plate is provided at the side end of the recovery box, and the push plate is used to push the film waste cut by the cutting tool to be unloaded.

[0012] Furthermore, the deformation component also includes a winding outer tube and a rotating drive rod. The winding outer tube is covered on the outer surface of the rotating drive rod, and a vertical clamping strip is provided on the rotating drive rod. A clamping groove for the clamping strip is opened on the inner wall of the winding outer tube.

[0013] Furthermore, a ventilation groove is provided inside the wound outer tube, and a circle of through holes communicating with the ventilation groove is spirally distributed on the surface of the wound outer tube, and the ventilation groove is connected to the suction component.

[0014] Furthermore, the top end of the winding outer tube is connected to an outer ring through a bearing sleeve, and the outer ring is connected to the telescopic member. The winding outer tube can move up and down along the rotating drive rod under the drive of the telescopic member.

[0015] Furthermore, the winding outer tube is in a conical shape, with the end with a smaller diameter at the bottom.

[0016] Furthermore, a spray assembly is provided in the recovery box, and the spray assembly consists of a water connection pipe and a row of nozzles. The spray assembly is used to spray water on the surface of the film waste during the deformation process, thereby increasing the counterweight of the water spraying part.

[0017] Furthermore, a recycling port is provided at the upper end of the recycling box body, and two sealing soft plates inclined downward are provided on the inner wall of the recycling port.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The surface of the film waste entering the cleaning box of the present invention is bent and shaped in an arc state. The film waste after bending and brittleness is still in a hardened state in the early stage of cleaning to avoid entanglement on the stirring structure. After multiple arc-shaped film wastes come into contact with water, due to their arc-shaped surfaces, two or more films cannot fit well together. The arc-shaped surface reduces the contact surface, avoiding the formation of an air adhesion layer in water, which causes pseudo-adhesion between the films through bubble bridging, thereby improving the cleaning efficiency. In the cleaning process, the film and the cleaning liquid exchange temperature, so that the film slowly thaws and softens to restore its original shape, and the cleaning is better completed. It can also self-recover to facilitate subsequent operations, thereby improving the recycling and processing efficiency of film waste.

[0020] 2. The present invention winds the film waste on the winding outer tube so that the film waste is wound in a spiral state, and under the action of the refrigerated gas, the film waste is brittle and shaped in a spiral state. Due to the special shape of the spiral, the film waste will neither produce pseudo-adhesion through bubble bridging nor overlap between multiple film wastes during the cleaning process, so that the film waste can complete the preliminary treatment with high efficiency and high cleanliness. The suction component can be used to suck the inside of the ventilation groove, thereby realizing the early winding of the film waste and the later automatic unloading, thereby improving its automation efficiency.

[0021] 3. The spray assembly of the present invention is used to spray water on the surface of the film waste during the deformation process, increase the counterweight of the water spraying part, and by spraying water on the surface of the film waste and using water as a medium for heat exchange, the freezing efficiency of the film waste can be accelerated. After the water is frozen, it cooperates with the film waste to achieve freezing and qualitative adjustment, avoiding excessive freezing of the film waste, which causes changes in the film properties. The static electricity on the waste surface is neutralized by spraying water, and the static electricity on the film surface is effectively removed to avoid adhesion caused by static electricity. Finally, since the water spraying accelerates the freezing speed of the film, it also increases the counterweight of the film. In the freezing and qualitative process, the film that is sprayed with water at the bottom cooperates with the conical winding outer tube, and uses its own counterweight to achieve automatic sliding, which is convenient for automatic material removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the internal structure of the recycling box of the present invention;

[0024] Figure 3 For the present invention Figure 2 A magnified view of point A;

[0025] Figure 4 Schematic diagram of deformation and superposition of film waste according to Example 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0027] Figure 6 This is a cross-sectional view of the internal structure of the storage box according to the second embodiment of the present invention;

[0028] Figure 7 It is a cross-sectional view of the winding outer tube structure of the present invention;

[0029] Figure 8 This is a schematic structural diagram of a deformation component according to a third embodiment of the present invention;

[0030] Figure 9 It is a schematic structural diagram of the spray assembly of the present invention;

[0031] Figure 10This is a schematic diagram of the first deformation of the film waste of the present invention;

[0032] Figure 11 This is a schematic diagram of the second deformation of the film waste of the present invention;

[0033] Figure 12 This is a schematic diagram of the third deformation of the film waste of the present invention;

[0034] Figure 13 This is a schematic diagram of the fourth deformation of the film waste of the present invention;

[0035] Figure 14 This is a schematic diagram of the fifth deformation of the film waste of the present invention;

[0036] Figure 15 This is a schematic diagram of the sixth deformation of the film waste of the present invention.

[0037] In the picture:

[0038] 1. Recovery box; 11. Cutting tool; 12. Recovery port; 121. Sealing soft board; 13. Pusher plate;

[0039] 2. Deformation component; 21. Upper template; 22. Conveying plate; 23. Winding outer tube; 231. Clamping groove; 232. Ventilation groove; 233. Through hole; 234. Outer ring; 24. Rotating drive rod; 241. Clamping strip; 3. Cleaning box; 4. Spraying component. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 efforts are within the scope of protection of the present invention.

[0041] In order to better understand the waste recycling mechanism of a film calender provided by this embodiment, the following first briefly introduces the existing film waste processing equipment. In order to avoid adhesion when cleaning existing film waste, most of them choose to install a multi-stage stirring and cleaning structure to increase the stirring force to prevent the film from sticking to each other after contacting water. However, excessive stirring can easily cause the film waste to wrap around the stirring and cleaning structure and affect subsequent cleaning, and high-speed friction makes the surface temperature of the film waste high, which is also prone to adhesion. The specification aims to solve the above technical problems. The embodiment of the present application provides a waste recycling mechanism for a film calender, through During the recycling process of film waste, it is processed by using low temperature to freeze the film waste, and in the freezing process, the surface of the film waste is treated into an arc shape. In fact, the embrittled shape is maintained in an arc state, and then enters the cleaning box 3 for cleaning. The bent and embrittled film waste is still in a hardened state in the early stage of cleaning to avoid winding on the stirring structure. After multiple arc-shaped film wastes meet water, due to their arc-shaped surfaces, two or more films cannot fit well together. The arc-shaped surface reduces the contact area, avoiding the formation of an air adhesion layer in the water when meeting water, resulting in pseudo-adhesion between the films through bubble bridging, thereby improving the cleaning efficiency.

[0042] Example 1: Reference Figure 1 - Figure 3, which is the first embodiment of the present invention, provides a waste recycling mechanism for a film calendering machine, including a recovery box 1, and refrigeration gas is connected to both sides of the recovery box 1. It should be noted that the recovery box 1 can be connected to the refrigerator through a pipeline for refrigeration gas transportation. However, considering the problem of heat energy exchange during transportation, a refrigeration machine can be set at the side end of the recovery box 1 so that the refrigeration gas can be directly transported into the recovery box 1, reducing temperature loss and improving the freezing effect. A deformation component 2 is provided in the recovery box 1, and a cleaning box 3 is connected to the bottom of the recovery box 1. The deformation component 2 is used to cause the planar film waste to produce spatial dimension deformation to form a three-dimensional deformation structure with a predetermined volume. The refrigeration gas input port is configured to continuously transport cold medium into the recovery box 1, so that the deformed film waste is frozen and brittle in a three-dimensional deformation state. , so that the film waste entering the cleaning box 3 forms a three-dimensional form with an alternating concave and convex structure on the surface. The curvature change of the three-dimensional form is configured to reduce the contact area between adjacent films when they move in the cleaning box 3. The bent and brittle film waste is still in a hardened state in the early stage of cleaning, avoiding entanglement on the stirring structure. After multiple arc-shaped film wastes meet water, due to their arc-shaped surfaces, two or more films cannot fit well together. The arc-shaped surface reduces the contact area, avoiding the formation of an air adhesion layer in water, resulting in pseudo-adhesion between the films through bubble bridging, thereby improving the cleaning efficiency. In the cleaning process, the film and the cleaning liquid exchange temperature, so that the film slowly thaws and softens to restore its original shape, and better completes the cleaning, and can self-recover to facilitate subsequent operations, thereby improving the recycling and processing efficiency of film waste.

[0043] The recycling box 1 is also provided with a cutting tool 11, which is used to cut the deformed and brittle film waste into sections, which is convenient for later cleaning and collection after cleaning.

[0044] A high-pressure flushing structure and a cleaning and stirring structure are provided in the cleaning box 3 , and both the high-pressure flushing and the cleaning and stirring structures are used to clean the surface of the treated film waste.

[0045] It should be noted that the deformed film waste can be: equidistant wave shape, unequal wave shape, circular spiral shape, angular spiral shape, semi-arc shape or U shape, etc. Figure 10 - Figure 15 .

[0046] The deformation component 2 includes an upper template 21 that can be pressed down and a conveying plate 22 that cooperates with the upper template 21 to press. A cylinder is provided in the recovery box 1 for driving the upper template 21 to press down. The upper template 21 and the conveying plate 22 are provided with protrusions on the opposite surfaces for deforming the film waste. The deformation component 2 is used to deform the film waste into a wavy state, and cooperate with the refrigeration gas to make the deformed film waste brittle and qualitatively. The recovery box 1 is provided with a driving structure for driving the conveying plate 22 to move and feed. The driving structure is a combination of a motor and a roller. The film waste is transported between the upper template 21 and the conveying plate 22, and the upper template 21 presses down and cooperates with the conveying plate 22 to suppress and deform the film waste. The protrusions on the upper template 21 and the conveying plate 22 are staggered and pressed, and the shape of the protrusion determines the shape of the film waste after deformation. During the deformation process, the refrigeration gas brittles the film waste.

[0047] A push plate 13 is provided at the side end of the cutting and recycling box 1. The push plate 13 is used to push the film waste cut by the cutting tool 11 to be discharged. The push plate 13 pushes the film waste after freezing and setting to be discharged for subsequent cleaning.

[0048] A recycling port 12 is provided at the upper end of the recycling box 1 , and two rollers are arranged in the recycling port 12 . The two rollers rotate in opposite directions under the drive of the driver to clamp and convey the film waste, and cooperate with the conveying plate 22 to realize feeding.

[0049] Example 2: Reference Figure 5 - Figure 7 、 Figure 14 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it was found that the film waste after extrusion deformation was still in the same horizontal plane. When the cleaning process was summarized, two or more film wastes were misaligned and overlapped, and overlapping and adhesion still occurred. Specifically, Figure 4 shown.

[0050] In order to solve the above problems, this embodiment sets up another deformation component 2 structure to solve the above problems. The deformation component 2 also includes a winding outer tube 23 and a rotating drive rod 24. The winding outer tube 23 is covered on the outer surface of the rotating drive rod 24, and a vertical clamping strip 241 is provided on the rotating drive rod 24. A clamping groove 231 for the clamping strip 241 to engage is provided on the inner wall of the winding outer tube 23. The winding outer tube 23 winds the film waste so that the film waste is wound in a spiral state, and under the action of the refrigerated gas, the film waste is brittle and shaped in a spiral state. Due to the special shape of the spiral, the film waste will neither produce pseudo-adhesion through bubble bridging nor overlap between multiple film wastes during the cleaning process, so that the film waste can complete the preliminary treatment with high efficiency and high cleanliness.

[0051] A ventilation groove 232 is provided inside the winding outer tube 23, and a circle of through holes 233 that are interconnected with the ventilation groove 232 are spirally distributed on the surface of the winding outer tube 23. The ventilation groove 232 is connected to the suction component, which is an air pump structure. When the film waste is initially wound on the surface of the winding outer tube 23, the suction component extracts air from the ventilation groove 232. When the ventilation groove 232 is under negative pressure, the through holes 233 generate suction to adsorb the film waste covered on its surface. The rotating drive rod 24 rotates under the drive of the motor, and then drives the winding outer tube 23 to rotate, and the film waste is wound. The suction component can be used to suck the ventilation groove 232, thereby realizing the early winding of the film waste and the later automatic unloading, thereby improving its automation efficiency.

[0052] The top end of the winding outer tube 23 is connected to an outer ring 234 through a bearing sleeve, and the outer ring 234 is connected to the telescopic part. The winding outer tube 23 can move up and down along the rotating drive rod 24 under the drive of the telescopic part. The winding outer tube 23 is conical, and the end with a smaller diameter is at the bottom. During the winding process, the telescopic part drives the winding outer tube 23 to move downward, so that it is wound in a spiral state. When the wound film waste at the bottom end becomes brittle, the suction component injects air to blow the film waste outward. Since the winding outer tube 23 is conical, the brittle film waste moves down along the conical winding outer tube 23 under the action of external blowing, and while the film waste moves down, the winding outer tube 23 continues to rotate, and the friction force is used to continuously wind the film waste.

[0053] Two downwardly inclined sealing soft plates 121 are provided on the inner wall of the recovery port 12. Since in this embodiment, the film waste is wound by the rotation of the winding outer tube 23, and the pulling force of the rotation of the winding outer tube 23 is used as the power for feeding the film waste, there is no need to set a feeding roller on the recovery port 12. By setting the sealing soft plate 121 in the recovery port 12, the internal temperature loss is reduced and the freezing efficiency is improved.

[0054] Example 3: Reference Figure 8 , which is the third embodiment of the present invention. Different from the first embodiment, this embodiment also provides another specific structure of the deformation component 2. The deformation component 2 includes a plurality of rollers that can move up and down. The film waste passes through these rollers. By adjusting the height of each roller, the film waste passing through is pulled to deform it.

[0055] Example 4: Reference Figure 9, which is the fourth embodiment of the present invention. What is different from the third embodiment is that a spray assembly 4 is provided in the recovery box 1. The spray assembly 4 consists of a water connection pipe and a row of nozzles. The spray assembly 4 is used to spray water on the surface of the film waste during the deformation process, increase the counterweight of the water spraying part, and accelerate the freezing efficiency of the film waste by spraying water on the surface of the film waste and using water as a medium for heat exchange. After the water is frozen, it cooperates with the film waste to achieve freezing and qualitative analysis, avoiding excessive freezing of the film waste, which leads to changes in the film performance. In addition, the static electricity on the surface of the waste is neutralized by spraying water, effectively removing the static electricity on the surface of the film, and avoiding adhesion caused by static electricity. Finally, since water spraying accelerates the freezing speed of the film, it also increases the counterweight of the film. During the freezing and qualitative process, the film qualitatively sprayed with water at the bottom cooperates with the conical winding outer tube 23, and uses its own counterweight to achieve automatic sliding, which is convenient for automatic material removal.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waste recycling mechanism for a film calender, characterized in that: include: The recovery box (1) is provided with refrigeration gas input ports on both sides thereof, a deformation component (2) is provided in the recovery box (1), a cleaning box (3) is connected to the bottom of the recovery box (1), and a cutting tool (11) is also provided in the recovery box (1); The deformation component (2) is used to deform the film waste in a planar state into a spatial dimension to form a three-dimensional deformation structure with a predetermined volume; The refrigerated gas input port is configured to continuously transport a cold medium into the recovery box (1), so that the deformed film waste is frozen and brittle in a three-dimensional deformed state, so that the film waste entering the cleaning box (3) forms a three-dimensional form with an alternating concave and convex structure on the surface, and the curvature change of the three-dimensional form is configured to reduce the contact area between adjacent films when they move in the cleaning box (3).

2. The waste recycling mechanism of a film calender according to claim 1, characterized in that: The cleaning box (3) is provided with a high-pressure flushing structure and a cleaning and stirring structure.

3. The waste recycling mechanism of a film calender according to claim 2, characterized in that: The deformation component (2) includes an upper template (21) capable of pressing downward and a conveying plate (22) that cooperates with the upper template (21) to press. The upper template (21) and the conveying plate (22) are provided with protrusions for deforming film waste on the opposite surfaces.

4. The waste recycling mechanism of a film calender according to claim 3, characterized in that: The recycling box (1) is provided with a driving structure for driving the conveying plate (22) to move and feed the material. The side end of the recycling box (1) is provided with a pushing plate (13), which is used to push the film waste cut by the cutting tool (11) to be discharged.

5. The waste recycling mechanism of a film calender according to claim 1, characterized in that: The deformation assembly (2) further comprises a winding outer tube (23) and a rotating drive rod (24); the winding outer tube (23) is sheathed on the outer surface of the rotating drive rod (24); a vertical clamping strip (241) is provided on the rotating drive rod (24); and a clamping groove (231) for clamping the clamping strip (241) is provided on the inner wall of the winding outer tube (23).

6. The waste recycling mechanism of a film calender according to claim 5, characterized in that: A ventilation groove (232) is provided inside the coiled outer tube (23), and a circle of through holes (233) communicating with the ventilation groove (232) is spirally distributed on the surface of the coiled outer tube (23), and the ventilation groove (232) is connected to the suction component.

7. The waste recycling mechanism of a film calender according to claim 6, characterized in that: The top end of the winding outer tube (23) is sleeved with an outer ring (234) via a bearing. The outer ring (234) is connected to the telescopic member. The winding outer tube (23) can move up and down along the rotating drive rod (24) under the drive of the telescopic member.

8. The waste recycling mechanism of a film calender according to claim 7, characterized in that: The winding outer tube (23) is in a conical shape, with the end with a smaller diameter at the bottom.

9. The waste recycling mechanism of a film calender according to claim 1, characterized in that: A spray assembly (4) is provided in the recovery box (1), and the spray assembly (4) is composed of a water connection pipe and a row of nozzles. The spray assembly (4) is used to spray water on the surface of the film waste during the deformation process, thereby increasing the counterweight of the water spraying part.

10. The waste recycling mechanism of a film calender according to claim 1, characterized in that: A recycling port (12) is provided at the upper end of the recycling box (1), and two downwardly inclined sealing soft plates (121) are provided on the inner wall of the recycling port (12).

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