Drying oven for stretching and shaping PET (polyethylene terephthalate) monofilaments

Abstract

The utility model discloses a drying oven for PET monofilament stretching and shaping, which comprises a device main body, a cavity is arranged on the device main body, a cover body is hinged on the device main body, a side cover is further hinged on the device main body, two symmetrical butt joint grooves are arranged at the top of the side cover, and a driving chain wheel can be driven to rotate by starting a servo motor. A transmission chain is arranged to drive a driven chain wheel to synchronously rotate, so that a connecting block mounted on the transmission chain can horizontally move, a movable roller on a sliding frame can horizontally move towards a fixed roller, and the purpose of conveniently mounting materials on the movable roller is achieved; after installation is completed, a servo motor can be started to drive a driving chain wheel to rotate reversely, then the movable roller is made to be far away from the fixed roller, PET monofilaments can be dried at the moment, through arrangement of a cover body and a side cover, the cover body and the side cover can be opened when necessary, and therefore the purpose that parts in the device can be conveniently maintained is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of PET monofilament production equipment, specifically a drying oven for stretching and shaping PET monofilaments. Background Technology

[0002] PET monofilament is a packaging material with good tensile strength and excellent welding performance. It has a good tensile holding ability and does not loosen after being packed for a long time, thus ensuring that the goods have excellent impact resistance during long-distance transportation. Moreover, its cost per meter is lower than that of steel strapping and it is easy to produce. It has now become the mainstream strapping for packaging heavy objects.

[0003] Currently, Chinese invention patent CN203651000U discloses a dual-channel PET plastic steel belt production line, which is sequentially equipped with an extruder, a double die head, a cooling drum, A and B strip distributors, a heating traction roller, a primary heating box, a primary stretching roller, a secondary stretching heating box, a secondary stretching roller, a stress modulation box, a cooling traction roller, a tempering oven, and a winding box. The tempering oven includes an upper shaping oven and a lower cooling shaping oven. A pressure sensor controller is provided on the front side of the extruder, and a metering rod device is provided on the extruder.

[0004] In the early stages of PET monofilament production, the strip material extruded from the extruder is cooled and then passes through the heating traction roller, primary heating box, primary stretching roller, secondary stretching heating box, secondary stretching roller, stress modulation box, cooling traction roller, tempering oven, and winding box. When passing through the stretching heating box, because the stretching heating box is relatively long, the strip material is wound around the stretching rollers at both ends of the stretching heating box. This results in an increased length of strip material that needs to be pulled out from the previous equipment, which in turn increases the weight of the strip material. Finally, this makes it inconvenient to wind the strip material around the stretching rollers at both ends of the stretching heating box. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an oven for stretching and shaping PET monofilaments, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a drying oven for stretching and shaping PET monofilaments, comprising a main body, a cavity formed thereon, a cover hinged to the main body, and a side cover hinged to the main body. The top of the side cover has two symmetrical butt joint grooves, and the bottom of the cover has two symmetrical butt joint strips that fit the butt joint grooves. Both sides of the cavity have through-holes communicating with the outside. A connecting frame is welded to one side of the main body, and a fixed roller is rotatably mounted on the connecting frame. A servo motor is mounted on the main body, and the output shaft of the servo motor extends into the cavity and is fitted with a drive sprocket. A driven sprocket is rotatably mounted inside the cavity. A transmission chain is installed between the driven sprocket and the drive sprocket, a connecting block is engaged with the transmission chain, a sliding frame is mounted on the connecting block, and a movable roller is rotatably mounted on the sliding frame.

[0009] Preferably, a horizontal slide rail is provided on the inner wall of the cavity away from the transmission chain, and a horizontal slider that is adapted to the horizontal slide rail is protruding on one side of the sliding frame.

[0010] Preferably, the main body of the device has a heating chamber, a fan and a heating wire are installed in the heating chamber, and two sets of rectangular through holes communicating with the cavity are opened at the top of the heating chamber.

[0011] Preferably, both sets of rectangular through holes are composed of multiple through holes spaced apart along the axial direction.

[0012] Preferably, both the movable roller and the fixed roller are provided with multiple annular grooves that are spaced apart along the axial direction.

[0013] Preferably, both the cover and the side cover are hinged to the main body of the device via hinges.

[0014] Preferably, both the cover and the side cover are connected to handles, and the outer surface of the handles is covered with an anti-slip rubber sleeve.

[0015] Compared with the prior art, this utility model provides an oven for stretching and shaping PET monofilaments, which has the following advantages:

[0016] 1. This utility model, through its structure including a transmission chain, connecting blocks, and a sliding frame, allows for the installation of materials. During installation, a servo motor drives the active sprocket to rotate, and the transmission chain drives the driven sprocket to rotate synchronously. This causes the connecting blocks mounted on the transmission chain to move horizontally, which in turn moves the movable roller on the sliding frame horizontally towards the fixed roller. This facilitates the installation of materials onto the movable roller. After installation, the servo motor can be activated to drive the active sprocket to rotate in the opposite direction, moving the movable roller away from the fixed roller. At this point, the PET monofilament can be dried. Furthermore, the cover and side covers allow for easy access and maintenance of the internal components when necessary. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side sectional view of the fixed roller and movable roller structures of this utility model.

[0019] Figure 3 This is a side cross-sectional structural diagram of the movable roller and sliding frame of this utility model.

[0020] Figure 4 This is a cross-sectional structural diagram of the horizontal slide rail and connecting strip of this utility model.

[0021] The components include: 1. Main body of the device; 2. Cover; 3. Hinge; 4. Side cover; 5. Handle; 6. Pass-through port; 7. Servo motor; 8. Cavity; 9. Heating chamber; 10. Fan; 11. Heating wire; 12. Drive sprocket; 13. Driven sprocket; 14. Transmission chain; 15. Connecting frame; 16. Fixed roller; 17. Sliding frame; 18. Movable roller; 19. Connecting block; 20. Horizontal slide rail; 21. Horizontal slider; 22. Rectangular through hole; 23. Annular groove; 24. Docking groove; 25. Docking strip. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-4 An oven for stretching and shaping PET monofilaments includes a main body 1, a cavity 8, a cover 2 hinged to the main body 1, and a side cover 4 hinged to the main body 1. The top of the side cover 4 has two symmetrical docking grooves 24, and the bottom of the cover 2 has two symmetrical docking strips 25 that are adapted to the docking grooves 24. Both sides of the inner wall of the cavity 8 have through ports 6 that communicate with the outside. A connecting frame 15 is welded to one side of the main body 1, and a fixed roller 16 is rotatably mounted on the connecting frame 15. A servo motor 7 is mounted on the main body 1. The output shaft of the servo motor 7 extends into the cavity 8 and is equipped with a drive sprocket 12. A driven sprocket 13 is rotatably mounted in the cavity. A transmission chain 14 is installed between the driven sprocket 13 and the drive sprocket 12. A connecting block 19 is snapped onto the transmission chain 14. A sliding frame 17 is mounted on the connecting block 19, and a movable roller 18 is rotatably mounted on the sliding frame 17.

[0026] With the structure including the transmission chain 14, connecting block 19, and sliding frame 17, when installing materials, the servo motor 7 can be started to drive the drive sprocket 12 to rotate, and the transmission chain 14 can drive the driven sprocket 13 to rotate synchronously. This allows the connecting block 19 mounted on the transmission chain 14 to move horizontally, which in turn causes the movable roller 18 on the sliding frame 17 to move horizontally toward the fixed roller 16, thus facilitating the installation of materials onto the movable roller 18. After installation, the servo motor 7 can be started to drive the drive sprocket 12 to rotate in the opposite direction, causing the movable roller 18 to move away from the fixed roller 16. At this time, the PET monofilament can be dried. With the cover 2 and side cover 4, the cover 2 and side cover 4 can be opened when necessary, thus facilitating the maintenance of the internal parts of the device.

[0027] Specifically, in this embodiment, a horizontal slide rail 20 is provided on the inner wall of the cavity 8 away from the transmission chain 14, and a horizontal slider 21 adapted to the horizontal slide rail 20 is protruding on one side of the sliding frame 17.

[0028] The horizontal slider 21 allows the sliding frame 17 to slide along the horizontal slide rail 20, thereby limiting the movement direction of the movable roller 18 and making the movement process of the movable roller 18 more stable.

[0029] Specifically, in this embodiment, a heating chamber 9 is provided inside the main body 1 of the device. A fan 10 and an electric heating wire 11 are provided inside the heating chamber 9. Two sets of rectangular through holes 22 communicating with the cavity 8 are provided on the top of the heating chamber 9. The model of the fan 10 is common knowledge and can be freely matched and used by those skilled in the art, and will not be described in detail here.

[0030] With its heating chamber 9, heating wire 11, and fan 10, the device is well equipped to dry PET monofilaments.

[0031] Specifically, in this embodiment, both sets of rectangular through holes 22 are composed of multiple through holes distributed at intervals along the axial direction. With the arrangement of the two sets of rectangular through holes 22, air can be introduced into the heating chamber 9 through one set of rectangular through holes 22, and after being heated by the heating wire 11, it is blown into the cavity 8 through the other set of rectangular through holes 22, thereby drying the PET monofilaments in the cavity 8.

[0032] Specifically, in this embodiment, both the movable roller 18 and the fixed roller 16 are provided with a plurality of annular grooves 23 that are spaced apart along the axial direction.

[0033] By setting multiple annular grooves 23, the tangling of multiple monofilaments can be avoided when drying multiple monofilaments.

[0034] Specifically, in this embodiment, both the cover 2 and the side cover 4 are hinged to the main body 1 of the device via hinges 3.

[0035] Specifically, in this embodiment, both the cover 2 and the side cover 4 are connected to handles 5, and the outer surface of the handles 5 is covered with an anti-slip rubber sleeve.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying oven for stretching and shaping PET monofilaments, comprising a main body, characterized in that: The device body has a cavity, a cover is hinged to the device body, and a side cover is also hinged to the device body. The top of the side cover has two symmetrical docking grooves, and the bottom of the cover has two symmetrical docking strips that fit the docking grooves. Both sides of the cavity have through openings that communicate with the outside. A connecting frame is welded to one side of the device body, and a fixed roller is rotatably mounted on the connecting frame. A servo motor is mounted on the device body, and the output shaft of the servo motor extends into the cavity and is mounted on a drive sprocket. A driven sprocket is rotatably mounted in the cavity, and a transmission chain is installed between the driven sprocket and the drive sprocket. A connecting block is engaged with the transmission chain, and a sliding frame is mounted on the connecting block. A movable roller is rotatably mounted on the sliding frame.

2. The oven for stretching and shaping PET monofilaments according to claim 1, characterized in that: A horizontal slide rail is provided on the inner wall of the cavity away from the transmission chain, and a horizontal slider that matches the horizontal slide rail is protruding on one side of the sliding frame.

3. The oven for stretching and shaping PET monofilaments according to claim 1, characterized in that: The device has a heating chamber inside its main body, which contains a fan and a heating wire. The top of the heating chamber has two sets of rectangular through holes that communicate with the cavity.

4. The oven for stretching and shaping PET monofilaments according to claim 3, characterized in that: Both sets of rectangular through holes are composed of multiple through holes spaced apart along the axial direction.

5. The oven for stretching and shaping PET monofilaments according to claim 1, characterized in that: Both the movable roller and the fixed roller have multiple annular grooves spaced apart along the axial direction.

6. The oven for stretching and shaping PET monofilaments according to claim 1, characterized in that: Both the cover and the side cover are hinged to the main body of the device.

7. The oven for stretching and shaping PET monofilaments according to claim 1, characterized in that: Both the cover and the side cover are equipped with handles, and the outer surface of the handles is covered with a non-slip rubber sleeve.

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