Plastic straw belt flattening machine and flattening method

Abstract

The invention relates to the field of plastic product processing. The invention relates to a flattening machine, in particular to a plastic straw belt flattening machine and a flattening method. The plastic suction pipe belt flattening machine comprises a conveying mechanism, a flattening mechanism and a flattening mechanism, and a plurality of conveying roller sets are arranged on the conveying mechanism at intervals; the guiding mechanisms are arranged between every two adjacent conveying roller sets, and the multiple conveying roller sets and the guiding mechanisms jointly form a conveying path used for conveying plastic straw belts; the multiple sets of heating assemblies are arranged on the outer side of the conveying path so as to heat the plastic straw belts on the conveying path. The invention provides a plastic straw belt flattening machine and a flattening method. Plastic straws in a plastic straw belt and packaging films on the plastic straws can be rapidly flattened.

Description

Technical Field

[0001] This invention relates to the field of plastic product processing. More specifically, this invention relates to a plastic straw flattening machine and a flattening method. Background Technology

[0002] Currently, in the production of plastic straw packaging, to adapt to automated production lines, the packaging film between adjacent plastic straws is designed to be continuous. This results in the packaged plastic straws being output as a strip, which needs to be flattened before subsequent cutting and repackaging. However, current plastic straw strip flattening equipment, generally through pressing, can only flatten the plastic straws within the strip, but its flattening effect on the packaging film within the strip is poor. The packaging film may still curl up, failing to guarantee flatness. Summary of the Invention

[0003] The purpose of this invention is to provide a plastic straw strip flattening machine and flattening method, which can quickly flatten the plastic straws and their packaging film in the plastic straw strip.

[0004] To achieve these objectives and other advantages according to the present invention, a plastic straw flattening machine is provided, comprising: A conveying mechanism having multiple sets of spaced conveying rollers; A guiding mechanism is provided between two adjacent sets of conveying rollers, and multiple sets of conveying rollers and the guiding mechanism together form a conveying path for conveying plastic straw belts. Multiple heating components are respectively disposed on the outside of the conveying path to heat the plastic straw belt on the conveying path.

[0005] Furthermore, in the aforementioned plastic straw flattening machine, multiple sets of conveying rollers are arranged horizontally at intervals, and each conveying mechanism is provided with a heating component below it. A heating chamber is formed between two adjacent sets of heating components, and a guiding mechanism is provided in each heating chamber.

[0006] Furthermore, the aforementioned plastic straw flattening machine also includes: The housing, the conveying mechanism, the guiding mechanism and the heating component are all disposed inside the housing, and the housing has an inlet and an outlet opposite to each other, which are located on both sides of the conveying path.

[0007] Furthermore, in the aforementioned plastic straw flattening machine, the conveying mechanism includes: A positioning plate, which is vertically installed inside the box; A drive assembly, which is mounted on the positioning plate; The conveyor roller assembly includes a pressing roller and a drive roller arranged at intervals. The pressing roller is fixedly mounted on the positioning plate, and the drive roller is connected to the drive assembly for transmission.

[0008] Furthermore, in the aforementioned plastic straw flattening machine, one side of the box is open and sealed with a transparent plate.

[0009] Furthermore, in the aforementioned plastic straw flattening machine, the drive roller has multiple grooves evenly distributed along its circumference, corresponding to the plastic straws.

[0010] Furthermore, in the aforementioned plastic straw flattening machine, the guiding mechanism includes: A conveyor roller, which is rotatably disposed between the corresponding two sets of the heating components; A positioning mechanism is mounted on the positioning plate, and the conveying roller is rotatably mounted on the positioning mechanism, and the connection position between the conveying roller and the positioning mechanism is vertically adjustable.

[0011] Furthermore, in the aforementioned plastic straw flattening machine, the positioning mechanism includes: A slide rail is vertically mounted on the positioning plate and located between the corresponding two sets of heating components; The slider is slidably mounted on the slide rail, the conveying roller is rotatably mounted on the slider, and the slider is threaded with positioning bolts.

[0012] Furthermore, in the aforementioned plastic straw flattening machine, the heating component includes: The heating element is vertically arranged, and its two ends are respectively mounted on the positioning plate by mounting brackets; A protective cover is installed on the positioning plate, the heating tube is located inside the protective cover, and the protective cover has multiple through holes evenly distributed on it.

[0013] The present invention also provides a method for flattening a plastic straw, comprising the following steps: A heating mechanism is installed along the conveyor path of the plastic straw belt to heat it, and multiple flattening positions are set at intervals along the conveyor path. The plastic straw belt is squeezed when it passes through the flattening positions.

[0014] The beneficial effects of this invention are: In the plastic straw strip flattening machine of the present invention, multiple sets of conveyor rollers are arranged at intervals, and a guiding mechanism is provided between two adjacent sets of conveyor rollers. The multiple sets of conveyor rollers and the guiding mechanism together form a conveying path for conveying the plastic straw strip. By providing the guiding mechanism, the length of the conveying path between two sets of conveyor rollers can be extended. Figure 1As shown, the plastic straw belt passes sequentially through each conveyor roller group and guide mechanism, being conveyed along the conveyor path. As it passes the conveyor roller group, the plastic straw belt is pressed down, thus flattening it. To improve the flattening effect on the packaging film, multiple heating components are installed on the outside of the conveyor path. During the conveying process, the plastic straw belt is heated by these components, raising the temperature of the packaging film. This allows the packaging film to be flattened as it passes through the conveyor roller group. After multiple flattening processes by the multiple conveyor roller groups, the plastic straw and its packaging film are finally flattened.

[0015] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a plastic straw with a flattening machine in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the plastic straw with flattening machine in another embodiment of the present invention; Figure 3 This is a front view of a plastic straw with a flattening machine according to another embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the driving component in another embodiment of the present invention; Figure 5 This is a schematic diagram of the heating component in another embodiment of the present invention.

[0017] The attached figures are labeled as follows: Conveying mechanism 1; positioning plate 11; pressing roller 12; drive roller 13; rotating shaft 14; double row sprocket 15; sprocket 16; groove 17; guiding mechanism 2; conveying roller 21; slide rail 22; slider 23; heating component 3; heating tube 31; protective cover 32; box 4; feed inlet 41; discharge outlet 42. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments, so that those skilled in the art can implement it based on the description.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application, so that those skilled in the art can implement them based on the description. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0020] Unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 this invention 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 this invention.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] First, a brief introduction to the design concept of the embodiments of this application will be given.

[0023] In a plastic straw strip flattening machine of the present invention, multiple sets of conveyor rollers are arranged at intervals, and a guiding mechanism is provided between adjacent sets of conveyor rollers. The multiple sets of conveyor rollers and the guiding mechanism together form a conveying path for conveying the plastic straw strip. By providing the guiding mechanism, the length of the conveying path between two sets of conveyor rollers can be extended. Figure 1 As shown, the plastic straw belt passes sequentially through each conveyor roller group and guide mechanism, being conveyed along the conveyor path. As it passes the conveyor roller group, the plastic straw belt is pressed down, thus flattening it. To improve the flattening effect on the packaging film, multiple heating components are installed on the outside of the conveyor path. During the conveying process, the plastic straw belt is heated by these components, raising the temperature of the packaging film. This allows the packaging film to be flattened as it passes through the conveyor roller group. After multiple flattening processes by the multiple conveyor roller groups, the plastic straw and its packaging film are finally flattened.

[0024] like Figures 2-3 As shown, an embodiment of the present invention provides a plastic straw flattening machine, comprising: Conveying mechanism 1, which has multiple sets of horizontally spaced conveying rollers; Guiding mechanism 2; Multiple sets of heating components 3 are provided below the conveying mechanism 1, and heating chambers are formed between adjacent heating components 3. The guide mechanism 2 is provided in each heating chamber. The box body 4 is equipped with the conveying mechanism 1, the guiding mechanism 2 and the heating component 3. The box body 4 has an inlet 41 and an outlet 42 facing each other. Multiple sets of conveying rollers and the guiding mechanism 2 together form a conveying path for conveying plastic straw belts. The inlet 41 and the outlet 42 are located on both sides of the conveying path.

[0025] In this embodiment, the heating effect of the heating component 3 is ensured by setting the housing 4. After the plastic straw enters the housing 4 through the feed port 41, it passes through the first set of conveyor rollers, extends downward into the first heating chamber, passes around the first guide mechanism 2, extends upward and passes through the second set of conveyor rollers, and so on. The plastic straw passes through multiple sets of conveyor rollers and guide mechanisms 2 in sequence, and finally leaves the housing 4 from the discharge port 42. After the plastic straw enters the heating chamber, the packaging film is heated. When it passes through the conveyor rollers, the conveyor rollers act as flattening positions to flatten the plastic straw. At this time, not only is the plastic straw flattened, but the packaging film, which has been heated, is also flattened well.

[0026] In this embodiment, the plastic film is heated and flattened multiple times to shorten its residence time in the heating chamber. This avoids excessively long single heating times, which could cause the plastic film to overheat and stick to the plastic straw, or excessive melting that could lead to breakage during flattening. This ensures the flattened plastic straw belt remains intact. It is important to note that the temperature inside the heating chamber should not be too high, as this could cause the film to completely melt and break. As needed, the heating temperature of the multiple heating chambers gradually decreases along the conveying direction of the plastic straw belt to ensure that the temperature of the plastic film is relatively consistent as it passes through each set of conveyor rollers.

[0027] Preferably, in another embodiment of the present invention, the conveying mechanism 1 includes: Positioning plate 11 is vertically installed inside the housing 4; A drive assembly is mounted on the positioning plate 11; the drive assembly includes a reducer, a motor, and multiple rotating shafts 14. The conveying roller group includes a pressing roller 12 and a driving roller 13 arranged at intervals. The pressing roller 12 is fixedly mounted on the positioning plate 11, and the driving roller 13 is connected to the driving assembly for transmission.

[0028] In this embodiment, the gap between the pressing roller 12 and the driving roller 13 is smaller than the thickness of the plastic straw belt. The pressing roller 12 is fixedly set, and the driving roller 13 rotates to drive the plastic straw belt to move, and the gap of the plastic straw belt is flattened by the pressing roller 12 and the driving roller 13.

[0029] like Figure 4As shown, the pressing roller 12 is coaxially connected to one end of the rotating shaft 14. The rotating shaft 14 passes through the positioning plate 11 and is rotatably connected to it via a bearing seat. A double-row sprocket 15 is sleeved on the other end of the rotating shaft 14. Two adjacent double-row sprockets 15 are connected by chain drive. The reducer and motor are connected by drive and fixed to the positioning plate 11 by a bracket. A sprocket 16 is sleeved on the output shaft of the reducer. The sprocket 16 is connected to a double-row sprocket 15 located at the edge by chain drive. When the motor is working, it drives multiple double-row sprockets 15 to rotate synchronously, thereby driving multiple drive rollers 13 to rotate synchronously. Figure 4 The chain is not shown in the drawing.

[0030] Preferably, in another embodiment of the present invention, the box 4 has an opening on one side and is sealed by a transparent plate.

[0031] In this embodiment, one side of the box 4 is made transparent, which makes it easy for staff to observe the situation inside the box 4 in real time.

[0032] Preferably, in another embodiment of the present invention, the drive roller 13 has a plurality of grooves 17 corresponding to the plastic straw evenly distributed along the circumference.

[0033] In this embodiment, a groove 17 corresponding to the plastic straw is provided on the drive roller 13. When the plastic straw belt passes through the flattening position, the plastic straw is squeezed into the groove 17, thereby fine-tuning the position of each plastic straw so that the position of the plastic straw in each individual package remains consistent after the plastic straw belt is cut.

[0034] Preferably, in another embodiment of the present invention, the guide mechanism 2 includes: The conveyor roller 21 is rotatably disposed between the corresponding two sets of the heating components 3; A positioning mechanism is mounted on the positioning plate 11, and the conveying roller 21 is rotatably mounted on the positioning mechanism, with the connection position between the conveying roller 21 and the positioning mechanism being vertically adjustable. The positioning mechanism includes: The slide rail 22 is vertically mounted on the positioning plate 11 and located between the corresponding two sets of heating components 3; The slider 23 is slidably mounted on the slide rail 22, the conveying roller 21 is rotatably mounted on the slider 23, and the slider 23 is threaded with a positioning bolt.

[0035] In this embodiment, by setting a positioning mechanism, the position of the conveyor roller 21 can be adjusted, thereby adjusting the movement trajectory of the plastic straw belt in the heating chamber and adjusting the single heating time of the plastic straw belt in the heating chamber.

[0036] Preferably, in another embodiment of the present invention, the heating component 3 includes: The heating element 31 is vertically arranged, and its two ends are respectively mounted on the positioning plate 11 by mounting brackets; A protective cover 32 is installed on the positioning plate 11, the heating tube 31 is located inside the protective cover 32, and the protective cover 32 has multiple through holes evenly distributed on it.

[0037] In this embodiment, the plastic straw is protected by a protective cover 32 to prevent the plastic film from directly contacting the heating tube 31.

[0038] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A plastic straw band flattening machine characterized by, The application relates to a plastic straw conveying device. The conveying mechanism comprises a plurality of groups of conveying rollers arranged at intervals; A guide mechanism is arranged between two adjacent groups of the conveying rollers, and the groups of conveying rollers and the guide mechanisms jointly form a conveying path for conveying a plastic straw belt. A plurality of heating assemblies are arranged outside the conveying path to heat the plastic straw belt on the conveying path.

2. A machine for flattening plastic straw bands as claimed in claim 1, characterized in that The groups of conveying rollers are arranged at intervals horizontally, and the heating assemblies are arranged below the conveying mechanism, and a heating cavity is formed between two adjacent groups of the heating assemblies, and the guide mechanism is arranged in each heating cavity.

3. A machine for flattening a strip of plastic drinking straws as claimed in claim 2, wherein, The application further relates to a plastic straw conveying device. The conveying mechanism, the guide mechanism and the heating assemblies are arranged in a box, and an inlet and an outlet are arranged oppositely on the box and are located on the two sides of the conveying path respectively.

4. A machine for flattening a strip of plastic drinking straws as claimed in claim 3, wherein, The conveying mechanism comprises a positioning plate arranged vertically in the box and a driving assembly mounted on the positioning plate. The conveying roller group comprises a pressing roller arranged at intervals and a driving roller, and the pressing roller is fixedly arranged on the positioning plate, and the driving roller is in transmission connection with the driving assembly. The box is open on one side and is sealed by a transparent plate. A plurality of grooves corresponding to the plastic straws are uniformly distributed on the driving roller in the circumferential direction.

5. A machine for flattening plastic straw bands as claimed in claim 3, characterized in that The guide mechanism comprises a conveying roller rotatably arranged between two corresponding groups of the heating assemblies and a positioning mechanism mounted on the positioning plate, and the conveying roller is rotatably arranged on the positioning mechanism, and the connection position of the conveying roller and the positioning mechanism is vertically adjustable.

6. A machine for flattening plastic straw bands as claimed in claim 4, characterized in that, The positioning mechanism comprises a slide rail vertically mounted on the positioning plate and located between two corresponding groups of the heating assemblies and a slide block slidably arranged on the slide rail, and the conveying roller is rotatably arranged on the slide block, and a positioning bolt is threadedly mounted on the slide block.

7. A machine for flattening plastic straw bands as claimed in claim 4, characterized in that, The heating assembly comprises a heating pipe arranged vertically and mounted on the positioning plate through mounting racks at two ends and a protective cover mounted on the positioning plate, and the heating pipe is located in the protective cover, and a plurality of through holes are uniformly distributed on the protective cover. The application further relates to a method for conveying a plastic straw belt. The plastic straw belt is heated by a heating mechanism arranged on a conveying path, and a plurality of flattening positions are arranged at intervals on the conveying path, and the plastic straw belt is extruded when passing through the flattening positions.

8. A machine for flattening a strip of plastic straws as claimed in claim 7, wherein, ​ ​ ​ 9. A machine for flattening plastic straw bands as claimed in claim 4, characterized in that, ​ ​ ​ 10. A method of flattening a strip of plastic straws, characterized by, ​ ​

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