Film introducing device

Abstract

The application relates to the technical field of adhesive film granulation, in particular to a film leading device. The application provides a film leading device which comprises a support and a plurality of film leading shafts. The support is provided with a plurality of support structures, and each support structure is rotationally connected with at least one film leading shaft. The film leading shaft is configured to mount an adhesive film roll to uniformly feed the adhesive film to a granulator. Different support structures have a height difference, so that the film leading shafts on different support structures have a height difference. The film leading device provided by the application can uniformly feed the granulator through the plurality of film leading shafts, and the granulation qualified rate is higher.

Description

Technical Field

[0001] This application relates to the field of film granulation machine technology, and in particular to a film drawing device. Background Technology

[0002] Waste is generated during the production of adhesive films. This waste can be recycled and reused. Typically, a granulator is used to melt the waste adhesive film and then extrude it into long strips, which are then cut into small particles. As a key part of the adhesive film production process, the stability of the granulation process is particularly important.

[0003] In related technologies, waste film is typically picked up manually and fed into the feed port of the granulator at a uniform speed.

[0004] However, manual feeding makes it difficult to ensure a uniform and stable feeding process, which can easily affect the granulation qualification rate. Utility Model Content

[0005] This application provides a film-feeding device to solve the technical problem that it is difficult to ensure uniform and stable feeding during the current manual feeding process, which affects the granulation qualification rate.

[0006] This application provides a film-drawing device, which includes a support and a plurality of film-drawing shafts. The support includes a plurality of support structures, and each support structure is rotatably connected to at least one film-drawing shaft. The film-drawing shafts are configured to mount a film roll to uniformly feed the film to a granulator. The different support structures have a height difference so that the film-drawing shafts on the different support structures have a height difference.

[0007] The film-drawing device provided in this application includes a support and multiple film-drawing shafts. The support includes multiple support structures, and each support structure is provided with at least one film-drawing shaft. Each film-drawing shaft is nested with a film and draws the film to the granulator. Since the adjacent support structures have a height difference, the film-drawing shafts on the adjacent support structures also have a height difference, so they will not interfere with each other during film drawing. The film on the film-drawing shaft can be conveyed to the granulator at a uniform speed, resulting in a higher granulation qualification rate.

[0008] As one possible implementation, multiple support structures are arranged along a first direction, which is the conveying direction of the adhesive film.

[0009] With this configuration, multiple film-drawing shafts can be set up through multiple support structures, and multiple film-drawing shafts can simultaneously deliver the film to the granulator, thereby improving granulation efficiency.

[0010] As one possible implementation, the height of the multiple support structures gradually decreases along the first direction.

[0011] This setup prevents interference between multiple film-feeding shafts when transporting the film.

[0012] As one possible implementation, the support structure and the membrane guide shaft extend along a second direction, the lengths of the support structure and the membrane guide shaft are matched, and the second direction is perpendicular to the first direction.

[0013] With this setup, the width of the adhesive film can be matched with the length of the support structure, allowing more adhesive film to be fed into the granulator per unit time.

[0014] As one possible implementation, a connecting part is provided at each end of the support structure along its length, and the two ends of the membrane shaft along its length are rotatably connected to the two connecting parts respectively.

[0015] This design, with its two connecting parts, improves the connection stability between the film guide shaft and the support structure.

[0016] In one possible implementation, at least one end of the film-drawing shaft is detachably connected to the connecting portion.

[0017] This design facilitates the disassembly of the film guide shaft and the connecting part for replacement of the film roll.

[0018] In one possible implementation, the film-drawing shaft includes a rotating body and an expansion portion, with the expansion portion wrapping around the surface of the rotating body.

[0019] This configuration allows the film-drawing shaft to make interference contact with the inner wall of the film roll through the expansion section, preventing relative rotation between the film roll and the film-drawing shaft when the film is being fed into the granulator.

[0020] As one possible implementation, the expansion section has a gas passage system for filling or releasing gas into the expansion section.

[0021] With this configuration, the expansion section can be expanded or contracted via the air system to fix the film roll or make it easier for the film roll to detach from the film guide shaft.

[0022] As one possible implementation, the multiple support structures include a first support structure and a second support structure, wherein the first support structure is higher than the second support structure.

[0023] With this configuration, the first and second support structures will not interfere with each other when the film is conveyed axially by the granulator.

[0024] In one possible implementation, the first support structure and the second support structure are each connected to a membrane guide shaft, and the two membrane guide shafts are arranged in parallel.

[0025] With this setup, the two film-feeding shafts can simultaneously feed the film into the granulator, improving feeding efficiency.

[0026] This application provides a film-feeding device, including a support and multiple film-feeding shafts. The support has multiple support structures, each support structure being rotatably connected to at least one film-feeding shaft. The film-feeding shafts are configured to mount a film roll for uniformly feeding the film into a granulator. The different support structures have height differences, so that the film-feeding shafts on the different support structures have height differences. The film-feeding device provided by this application can uniformly feed material into the granulator through multiple film-feeding shafts, resulting in a higher granulation qualification rate.

[0027] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the film-drawing device provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A front view of the membrane-extraction device provided in an embodiment of this application;

[0030] Figure 2 A side view of the membrane-extraction device provided in an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the structure of the membrane guide shaft provided in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the feeding process of the film-feeding device provided in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10-Membrane extraction device;

[0035] 100 - Bracket; 110 - Support structure; 111 - First support structure; 112 - Second support structure; 113 - Connecting part;

[0036] 200 - Membrane shaft; 210 - Insertion part; 220 - First end; 230 - Second end. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate. For example, without departing from the scope of this document, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0039] Depending on the context, the word "if" as used here can be interpreted as "when," "when," or "in response to determination."

[0040] Furthermore, as used herein, the singular forms “a,” “one,” and “the” are intended to also include the plural forms, unless the context indicates otherwise.

[0041] Furthermore, as used in this article, “multiple” refers to “at least two” unless the context indicates otherwise.

[0042] It should be further understood that the terms “comprising” or “including” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups.

[0043] The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Therefore, “A, B, and / or C” means “any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition occur only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0044] Waste is generated during the production of adhesive films. This waste can be recycled and reused. Typically, a granulator is used to melt the waste adhesive film and extrude it into long strips, which are then cut into small particles. Adhesive film granulation is a crucial step in the production process, and its stability is paramount, directly impacting the quality of subsequent products. In particular, the appearance quality of the adhesive film is extremely important. Due to the formulation system, the stability of the feeding speed during granulation directly affects the stability of the subsequent product quality. In related technologies, waste adhesive film is generally manually grabbed and fed into the granulator's feed port at a uniform speed.

[0045] However, manual feeding makes it difficult to guarantee the uniformity and stability of the feed. When the feed amount is too large, it may cause the granulator screw to jam. When the feed amount is too small, it may cause changes in the appearance of the particles. In severe cases, it may produce unqualified products, affecting the overall output and pass rate.

[0046] To address the aforementioned technical problems, this application provides a film-drawing device comprising a support and a film-drawing shaft. The support includes multiple support structures, each of which is connected to at least one film-drawing shaft. The height difference between adjacent support structures creates a height difference between adjacent film-drawing shafts, thereby preventing interference between the films on adjacent film-drawing shafts during traction. The film-drawing device provided by this application can feed materials uniformly and stably, ensuring granulation quality.

[0047] Figure 1 A front view of the membrane-extraction device provided in an embodiment of this application; Figure 2 A side view of the membrane-extraction device provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the membrane guide shaft provided in an embodiment of this application; Figure 4 This is a schematic diagram of the feeding process of the film-feeding device provided in an embodiment of this application.

[0048] Reference Figures 1 to 4 As shown, this application provides a film-drawing device 10, which includes a support 100 and a film-drawing shaft 200. The film-drawing shaft 200 is used to nest the film roll and draw the film to a granulator for granulation. The support 100 has a plurality of support structures 110, and each support structure 110 is rotatably connected to at least one film-drawing shaft 200. The different support structures 110 have a height difference so that the film-drawing shafts 200 on the different support structures 110 have a height difference.

[0049] It is understandable that the film-drawing shaft 200 can be set at the top of the support structure 110. Since the adjacent support structures 110 have a height difference, the film-drawing shafts 200 on the adjacent support structures 110 also have a height difference. In this way, the film on the adjacent film-drawing shafts 200 will not interfere with each other when it is pulled to the granulator.

[0050] It should be noted that during feeding, the granulator can simultaneously introduce film rolls from multiple film guide shafts 200, or it can only introduce film rolls from one film guide shaft 200. By controlling the number of film rolls introduced simultaneously from the film guide shafts 200, the feeding speed can be controlled.

[0051] The multiple support structures 110 can be fixedly connected by welding to increase support stability and prevent the support structures 110 from tipping over; the multiple support structures 110 can also be connected by a detachable method such as a snap-fit ​​mechanism, or the multiple support structures 110 can abut against each other along the first direction. During granulation, the number of support structures can be increased or decreased according to the required feeding rate.

[0052] For example, the number of support structures 110 can be 2, 3, 4, 5, 6, etc., and this application embodiment does not make a specific limitation.

[0053] In some embodiments, a highest support structure 110 may be provided at the center of the support 100. Multiple support structures 110 with progressively decreasing heights may be provided towards the front and rear sides in a first direction, centered on the highest support structure 110. The highest support structure 110 may be provided with two film-drawing shafts 200, while the other support structures 110 may be provided with one film-drawing shaft 200. Along the first direction, a granulator may be located on the front and rear sides of the support 100. The film-drawing shaft 200 on the front side of the highest support structure 110 and the film-drawing shaft 200 on the support structure 110 on the front side of the highest support structure 110 both guide the adhesive film to the granulator on the front side of the support 100. The film-drawing shaft 200 on the rear side of the highest support structure 110 and the film-drawing shaft 200 on the support structure 110 on the rear side of the highest support structure 110 both guide the adhesive film to the granulator on the rear side of the support 100.

[0054] Reference Figure 1 and Figure 2 Let the first direction be the X direction, the second direction be the Y direction, and the Y direction be perpendicular to the X direction. Figure 1 The direction perpendicular to the paper.

[0055] As one possible implementation, multiple support structures 110 are arranged side by side along the first direction.

[0056] It should be noted that the first direction is the direction in which the support structure 110 faces the granulator, that is, the direction of film conveying.

[0057] For example, the plurality of support structures 110 include a first support structure 111 and a second support structure 112. Along the first direction, the first support structure 111 is located behind the second support structure 112 and is higher than the second support structure 112. A film guide shaft 200 is connected to the top of both the first support structure 111 and the second support structure 112, and the two film guide shafts 200 are arranged in parallel. During feeding, two rolls of film with paper tubes are threaded through the two film guide shafts 200. Then, an operator pulls one end of each roll of film to the granulator. The two rolls of film do not interfere with each other in the air, but come into contact at the feed inlet of the granulator. When the screw of the granulator rotates, the film drives the two film guide shafts 200 to rotate, allowing the film to be evenly fed into the granulator, thus completing the feeding process.

[0058] As one possible implementation, the height of the multiple support structures 110 gradually decreases along the first direction.

[0059] It is understandable that by setting different gradients and gradually decreasing the height of multiple support structures 110 along the first direction, the adhesive films on different support structures 110 will not interfere with each other during the traction process.

[0060] As one possible implementation, the support structure 110 and the membrane shaft 200 extend along a second direction, and the lengths of the support structure 110 and the membrane shaft 200 are matched.

[0061] It should be noted that the length direction of both the support structure 110 and the film guide shaft 200 is the second direction. When the film roll is nested on the film guide shaft 200, it extends along the length direction of the film guide shaft 200. The length of the film roll can be less than the length of the film guide shaft 200 and close to the length of the film guide shaft 200, so as to prevent the two ends of the film roll from rubbing against the support structure 110, while ensuring the maximum feeding amount between units.

[0062] As one possible implementation, the support structure 110 has a connecting part 113 at each end in the length direction, and the two ends of the film guide shaft 200 in the length direction are rotatably connected to the two connecting parts 113 respectively.

[0063] In some embodiments, the connecting portion 113 can be a bearing housing, on which a bearing is provided. The film-drawing shaft 200 has a plug-in portion 210, which can be inserted into the inner ring of the bearing and connected to the bearing. The plug-in portion 210 is provided with a set screw, which can be a set screw. The set screw can generate static friction between the plug-in portion 210 and the inner ring of the bearing, thereby preventing relative rotation between the plug-in portion 210 and the inner ring of the bearing when the film-drawing shaft 200 rotates. Simultaneously, the set screw can also, to a certain extent, prevent relative displacement between the plug-in portion 210 and the inner ring of the bearing in the axial direction.

[0064] As one possible implementation, at least one end of the film-drawing shaft 200 is detachably connected to the connecting portion 113.

[0065] It is understood that, in order to achieve rapid replacement of the film roll, at least one end of the film-drawing shaft 200 is detachably connected to the connecting part 113. In some embodiments, one end of the film-drawing shaft 200 can be detachably connected to the corresponding connecting part 113, and the other end is fixedly connected to the corresponding connecting part 113; in other embodiments, both ends of the film-drawing shaft 200 are detachably connected to the corresponding connecting part 113. The end of the film-drawing shaft 200 can be machined with a flange and connected to the inner ring of the bearing by bolts, or a tapered clamping sleeve can be used to hydraulically or bolt-press and fix the shaft and bearing, or a groove can be designed at the end of the film-drawing shaft 200 to engage with the elastic snap of the inner ring of the bearing to achieve a detachable connection. The film-drawing shaft 200 and the connecting part 113 can also be detachably connected in other ways, which are not specifically limited in the embodiments of this application.

[0066] In some embodiments, the film-drawing shaft 200 is an air-expanding shaft, including a rotating body and an expansion part. The expansion part is wrapped around the surface of the rotating body. The rotating body can be a high-strength steel hollow round tube with a chrome-plated or sprayed surface to improve wear resistance and an axial ventilation hole inside. The expansion part can be an air bladder, which can be composed of multiple rubber expansion strips evenly distributed along the circumference of the shaft tube. After inflation, it expands radially to clamp the inner wall of the film roll. The air-expanding shaft also includes an air circuit system, which includes an air inlet, a diversion air passage, and a pressure relief valve. The air inlet is used to connect to an air pump to inject gas into the diversion air passage. The injected gas is diverted through the diversion air passage and enters different positions of the air bladder along the ventilation hole, so that the air bladder expands evenly and quickly. The pressure relief valve is used to discharge the gas from the air bladder to reduce the diameter of the air-expanding shaft.

[0067] The following describes the film roll replacement process with reference to an example.

[0068] The adhesive film is usually wound onto a paper tube in a roll. After all the adhesive film on the film guide shaft 200 is fed into the granulator, the pressure relief valve is opened to release the gas in the air bag. The diameter of the film guide shaft 200 gradually becomes smaller than the inner diameter of the paper tube, making it easier to separate the paper tube from the film guide shaft 200. Then, the first end 220 of the film guide shaft 200 is pulled out from the inner ring of the bearing. The first end 220 of the film guide shaft 200 is turned, and the film guide shaft 200 rotates around the second end 230 through the universal structure. The paper tube is then pulled out from the first end 220 of the film guide shaft 200 and replaced with a new roll of adhesive film. The first end 220 of the film guide shaft 200 is then turned back and inserted into the inner ring of the bearing. Finally, the air pump is connected to the air nozzle to inflate the air bag. When the air bag comes into contact with the inner wall of the paper tube and a certain pre-tightening force is applied, the air source is cut off, and the replacement of the adhesive film roll is completed.

[0069] This application provides a film-feeding device 10, including a support 100 and a plurality of film-feeding shafts 200. The support 100 has a plurality of support structures 110, each support structure 110 being rotatably connected to at least one film-feeding shaft 200. The film-feeding shafts 200 are configured to mount a film roll for uniformly feeding the film into a granulator. Different support structures 110 have a height difference, so that the film-feeding shafts 200 on different support structures 110 have a height difference. The film-feeding device 10 provided by this application can uniformly feed material into the granulator through the multiple film-feeding shafts 200, resulting in a higher granulation qualification rate.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A membrane-extraction device, characterized in that, The film-drawing device (10) includes a support (100) and a plurality of film-drawing shafts (200). The support (100) includes a plurality of support structures (110), each of the support structures (110) being rotatably connected to at least one of the film-drawing shafts (200). The film-drawing shafts (200) are configured to mount film rolls to uniformly feed film to the granulator. The different support structures (110) have a height difference, so that the membrane shafts (200) on the different support structures (110) have a height difference; The membrane guide shaft (200) includes a rotating body and an expansion section, the expansion section being wrapped around the surface of the rotating body; the membrane guide shaft (200) has a gas passage system for filling or releasing gas into the expansion section; The support structure (110) has a connecting part (113) at each end of its length direction. The two ends of the film guide shaft (200) are rotatably connected to the two connecting parts (113) respectively. The connecting part (113) is a bearing seat, and the bearing seat is provided with a bearing. The film guide shaft (200) has a plug-in part (210). The plug-in part (210) is inserted into the inner ring of the bearing and connected to the bearing. The plug-in part (210) is provided with a set screw, which is configured to generate static friction between the plug-in part (210) and the inner ring of the bearing.

2. The membrane-applying device according to claim 1, characterized in that, Multiple support structures (110) are arranged along a first direction, which is the conveying direction of the adhesive film.

3. The membrane-applying device according to claim 2, characterized in that, Along the first direction, the height of the plurality of support structures (110) gradually decreases.

4. The membrane-applying device according to claim 2, characterized in that, The support structure (110) and the membrane guide shaft (200) extend along a second direction, and the lengths of the support structure (110) and the membrane guide shaft (200) are matched; the second direction is perpendicular to the first direction.

5. The membrane-applying device according to claim 4, characterized in that, The support structure (110) has a connecting part (113) at each end of its length direction, and the two ends of the membrane shaft (200) are rotatably connected to the two connecting parts (113) respectively.

6. The membrane-applying device according to claim 5, characterized in that, At least one end of the membrane guide shaft (200) is detachably connected to the connecting part (113).

7. The membrane-applying device according to claim 1, characterized in that, The plurality of support structures (110) include a first support structure (111) and a second support structure (112), wherein the first support structure (111) is higher than the second support structure (112).

8. The membrane-applying device according to claim 7, characterized in that, The first support structure (111) and the second support structure (112) are each connected to a membrane guide shaft (200), and the two membrane guide shafts (200) are arranged in parallel.

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