Spiral decoration strip machining mechanism

Abstract

The utility model relates to a spiral decoration strip processing mechanism which comprises a machine frame, a plastic strip unwinding device, a heating softening device, a cooling shaping device and a finished product winding device, and the plastic strip unwinding device, the heating softening device, the cooling shaping device and the finished product winding device are all installed on the machine frame and are sequentially arranged from front to back. The plastic strip unwinding device comprises an unwinding support, a first rotating mechanism used for driving the unwinding support to rotate, an unwinding shaft and an unwinding motor, the first rotating mechanism is installed on the rack, the rotating axis of the unwinding support is in the front-back direction, and the unwinding motor is installed on the unwinding support; the unwinding shaft is rotationally installed on the unwinding support and is in transmission connection with an output shaft of the unwinding motor. The spiral decoration strip processing mechanism can automatically finish continuous twisting and cooling shaping of decoration strips so as to process the spiral decoration strips, so that the working efficiency is improved, and the product consistency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic torsion molding equipment, in particular to a spiral decorative strip processing mechanism. Background Art

[0002] In the field of decorative materials, decorative strips, as functional components for space beautification, have been widely used in homes, commercial displays, and handicrafts. Traditional decorative strips mostly adopt linear or flat sheet structures. Their optical reflection paths show regular repetition, resulting in a dull and monotonous light refraction effect, which cannot meet the high-end decorative requirements of modern decorative design.

[0003] To meet the demand for spatial hierarchy and visual fluidity in modern decorative design, spiral decorative strips have appeared on the market. These spiral decorative strips are twisted and extended in a spiral shape. Combined with the glossy effect of the decorative strip itself, they can create a dynamic light and shadow refraction effect, significantly enhancing their decorative effect. However, currently, spiral decorative strips are generally made by repeatedly folding long strips to form a spiral structure using manual or semi-automatic processing methods. For example, the Chinese invention patent application with publication number CN110920311A, entitled "A Method for Folding Spiral Strips and Method for Preparing Ornaments," is inefficient and difficult to adapt to the needs of mass production. In addition, the yield rate is unstable and product consistency cannot be guaranteed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a spiral decorative strip processing mechanism that can automatically complete the continuous twisting and cooling of the decorative strip to produce the spiral decorative strip, thereby improving work efficiency and ensuring product consistency. The technical solution adopted is as follows:

[0005] A spiral decorative strip processing mechanism, characterized in that it includes a frame, a plastic strip unwinding device, a heating and softening device, a cooling and shaping device and a finished product winding device, the plastic strip unwinding device, the heating and softening device, the cooling and shaping device and the finished product winding device are all installed on the frame and arranged in sequence from front to back; the plastic strip unwinding device includes an unwinding bracket, a first rotating mechanism for driving the unwinding bracket to rotate, an unwinding shaft and an unwinding motor, the first rotating mechanism is installed on the frame, the rotation axis of the unwinding bracket is forward and backward, the unwinding motor is installed on the unwinding bracket, and the unwinding shaft is rotatably installed on the unwinding bracket and is transmission-connected to the output shaft of the unwinding motor.

[0006] Typically, the unwinding shaft is perpendicular to the rotation axis of the unwinding support.

[0007] In the aforementioned spiral decorative strip processing mechanism, the unwinding shaft of the plastic strip unwinding device stores a plastic strip roll (the plastic strip is in the form of a flat strip and can be made of PET or other thermoplastics). The plastic strip released from the plastic strip roll passes through a heating and softening device, a cooling and shaping device, and finally is reeled in by the finished product reeling device. During operation, the unwinding shaft of the plastic strip unwinding device rotates continuously under the drive of the unwinding motor to continuously release the plastic strip. Simultaneously, the unwinding bracket rotates forward under the drive of the first rotating mechanism, driving the plastic strip roll forward through the unwinding shaft. The plastic strip moves from front to back under the drive of the finished product reeling device, and is first heated and softened by the heating and softening device. As the softened plastic strip moves backward, it undergoes twisting deformation and spiraling under the twisting action of the unwinding shaft. The deformed decorative strip is then rapidly cooled and shaped by the cooling and shaping device to form a spiral decorative strip. Finally, the processed spiral decorative strip is reeled in the finished product reeling device to obtain a finished roll. This spiral decorative strip processing mechanism can automatically complete the continuous twisting and cooling shaping of the plastic strip to produce a spiral decorative strip, thereby improving work efficiency. In addition, the moving speed of the plastic strip and the rotation speed of the unwinding bracket can be controlled so that the produced spiral decorative strip has a corresponding pitch, thereby ensuring product consistency.

[0008] As a preferred embodiment of the present invention, the first rotating mechanism includes a first rotating shaft, a first rotating motor, and a first speed reducer. The first rotating shaft is rotatably mounted on the frame and extends forward and backward. The first rotating motor is mounted on the frame, and the output shaft of the first rotating motor is in transmission connection with the first rotating shaft via the first speed reducer. The unwinding bracket is fixedly mounted on the first rotating shaft. During operation, the first rotating motor drives the first rotating shaft via the first speed reducer, thereby driving the unwinding bracket to continuously rotate about the first rotating shaft (the axis of the first rotating shaft serves as the unwinding bracket's rotation axis).

[0009] As a preferred embodiment of the present utility model, the finished product winding device includes a winding support, a second rotating mechanism for driving the rotation of the winding support, a winding shaft, and a winding motor. The second rotating mechanism is installed on the frame. The rotation axis of the winding support is in the front-back direction, and the rotation direction of the unwinding support is opposite to that of the winding support. The winding motor is installed on the winding support, and the winding shaft is rotatably installed on the winding support and is in transmission connection with the winding motor. During operation, the winding shaft of the finished product winding device continuously rotates under the drive of the winding motor to wind the spiral-shaped decorative strip after cooling and shaping. At the same time, the winding support rotates reversely under the drive of the second rotating mechanism, and drives the plastic strip roll to rotate reversely through the winding shaft. Since the rotation direction of the unwinding support is opposite to that of the winding support, torsional forces in different directions can be applied to both ends of the plastic strip in the heating and softening device, and torsional forces are applied to the softened plastic strip at both the front and rear ends simultaneously for twisting. On the one hand, it can make the plastic strip more easily twisted into a spiral-shaped decorative strip with a uniform pitch everywhere. On the other hand, it can reduce the requirement for the rotation speed magnitude of the unwinding support. As long as the unwinding support and the winding support maintain a relatively low rotation speed, the processing requirements can be met.

[0010] As a further preferred embodiment of the present utility model, the second rotating mechanism includes a second rotating shaft, a second rotating motor, and a second reducer. The second rotating shaft is rotatably installed on the frame and is in the front-back direction. The second rotating motor is installed on the frame, and the output shaft of the second rotating motor is in transmission connection with the second rotating shaft through the second reducer. The winding support is fixedly installed on the second rotating shaft. During operation, the second rotating motor drives the second rotating shaft to rotate through the second reducer, driving the winding support to continuously rotate around the axis of the second rotating shaft (the axis of the second rotating shaft is the rotation axis of the winding support).

[0011] As a preferred embodiment of the present utility model, the heating and softening device includes an oven and an electric heater. The electric heater is installed in the inner cavity of the oven, and openings are respectively provided on the front side and the rear side of the oven. During operation, the plastic strip first enters the inner cavity of the oven from the opening on the front side of the oven, and is heated by the electric heater to be softened. The softened plastic strip twists and deforms while moving backward to form a spiral shape, and finally comes out from the opening on the rear side of the oven.

[0012] As a further preferred embodiment of the present utility model, the electric heater includes a plurality of electric heating tubes, and each electric heating tube is respectively installed on the top and the bottom of the inner cavity of the oven. This can make the heating of the plastic strip by the electric heater more uniform.

[0013] As a preferred embodiment of the present utility model, the cooling and shaping device includes a cooling box, a water receiving tank, and a plurality of cold water spray heads. The cooling box is installed on the frame. Openings are respectively provided on the front side and the rear side of the cooling box. The water receiving tank is installed at the bottom of the inner cavity of the cooling box with its notch facing upward. Each cold water spray head is installed at the top of the inner cavity of the cooling box and arranged in sequence from front to back. During operation, the plastic strip first enters the inner cavity of the cooling box through the opening on the front side of the cooling box, and the cold water spray heads spray water towards the plastic strip to quickly cool and shape it (the cold water falls into the water receiving tank for storage after leaving the plastic strip); finally, the shaped plastic strip comes out through the opening on the rear side of the cooling box.

[0014] As a further preferred embodiment of the present utility model, an air drying device is provided between the cooling and shaping device and the finished product winding device. The air drying device includes an air drying support and at least one fan provided on the air drying support. During operation, the fan blows air towards the plastic strip to remove the moisture attached to the surface of the plastic strip.

[0015] Compared with the prior art, the present utility model has the following advantages:

[0016] Through the cooperation among the plastic strip unwinding device, the heating and softening device, the cooling and shaping device, and the finished product winding device, this spiral decorative strip processing mechanism can automatically complete the continuous twisting and cooling and shaping of the plastic strip to process spiral decorative strips, thereby improving work efficiency and ensuring product consistency. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the spiral decorative strip processing mechanism of the preferred embodiment of the present utility model.

[0018] Figure 2 is Figure 1 a top view of the plastic strip unwinding device in the spiral decorative strip processing mechanism shown.

[0019] Figure 3 is Figure 1 a top view of the finished product winding device in the spiral decorative strip processing mechanism shown.

[0020] Figure 4 is a schematic structural diagram of the spiral decorative strip processed by the preferred embodiment of the present utility model. Detailed Embodiments

[0021] Such as Figures 1 - 4As shown in the figure, this spiral decorative strip processing mechanism includes a frame 1, a plastic strip unwinding device 2, a heating and softening device 3, a cooling and shaping device 4, and a finished product winding device 5. The plastic strip unwinding device 2, the heating and softening device 3, the cooling and shaping device 4, and the finished product winding device 5 are all installed on the frame 1 and are arranged in sequence from front to back. The plastic strip unwinding device 2 includes an unwinding bracket 21, a first rotating mechanism 22 for driving the unwinding bracket 21 to rotate, an unwinding shaft 23, and an unwinding motor 24. The first rotating mechanism 22 is installed on the frame 1. The rotation axis of the unwinding bracket 21 is in the front-back direction. The unwinding motor 24 is installed on the unwinding bracket 21. The unwinding shaft 23 is rotatably installed on the unwinding bracket 21 and is in transmission connection with the output shaft of the unwinding motor 24. The axis of the unwinding shaft 23 is perpendicular to the rotation axis of the unwinding bracket 21. The finished product winding device 5 includes a winding bracket 51, a second rotating mechanism 52 for driving the winding bracket 51 to rotate, a winding shaft 53, and a winding motor 54. The second rotating mechanism 52 is installed on the frame 1. The rotation axis of the winding bracket 51 is in the front-back direction, and the rotation direction of the unwinding bracket 21 is opposite to that of the winding bracket 51. The winding motor 54 is installed on the winding bracket 51. The winding shaft 53 is rotatably installed on the winding bracket 51 and is in transmission connection with the winding motor 54.

[0022] In this embodiment, the first rotating mechanism 22 includes a first rotating shaft 221, a first rotating motor 222, and a first speed reducer 223. The first rotating shaft 221 is rotatably installed on the frame 1 and is in the front-back direction. The first rotating motor 222 is installed on the frame 1. The output shaft of the first rotating motor 222 is in transmission connection with the first rotating shaft 221 through the first speed reducer 223. The unwinding bracket 21 is fixedly installed on the first rotating shaft 221. During operation, the first rotating motor 222 drives the first rotating shaft 221 to rotate through the first speed reducer 223, driving the unwinding bracket 21 to continuously rotate around the axis of the first rotating shaft 221 (the axis of the first rotating shaft 221 is the rotation axis of the unwinding bracket 21).

[0023] In this embodiment, the heating and softening device 3 includes an oven 31 and an electric heater 32. Openings are respectively provided on the front side and the rear side of the oven 31. The electric heater 32 includes a plurality of electric heating tubes 321, and each electric heating tube 321 is respectively installed on the top and the bottom of the inner cavity of the oven 31. During operation, the plastic strip 10 first enters the inner cavity of the oven 31 from the opening on the front side of the oven 31, is heated by the electric heater 32, and then comes out from the opening on the rear side of the oven 31.

[0024] In this embodiment, the second rotating mechanism 52 includes a second rotating shaft 521, a second rotating motor 522 and a second speed reducer 523. The second rotating shaft 521 is rotatably installed on the frame 1 and extends in the front-rear direction. The second rotating motor 522 is installed on the frame 1, and the output shaft of the second rotating motor 522 is drivingly connected to the second rotating shaft 521 through the second speed reducer 523. The winding bracket 51 is fixedly installed on the second rotating shaft 521. During operation, the second rotating motor 522 drives the second rotating shaft 521 to rotate through the second speed reducer 523, driving the winding bracket 51 to continuously rotate around the second rotating shaft 521.

[0025] In this embodiment, the cooling and shaping device 4 includes a cooling box 41, a water receiving tank 42 and a plurality of cold water spray heads 43. The cooling box 41 is installed on the frame 1. Openings are respectively provided on the front side and the rear side of the cooling box 41. The water receiving tank 42 is installed at the bottom of the inner cavity of the cooling box 41 and its notch faces upward. Each cold water spray head 43 is installed at the top of the inner cavity of the cooling box 41 and is arranged in sequence from front to back. During operation, the plastic strip 10 first enters the inner cavity of the cooling box 41 from the opening on the front side of the cooling box 41, and the cold water spray heads 43 spray water towards the plastic strip 10 to quickly cool and shape it; finally, the plastic strip 10 formed after shaping comes out from the opening on the rear side of the cooling box 41.

[0026] In this embodiment, an air drying device 6 is provided between the cooling and shaping device 4 and the finished product winding device 5. The air drying device 6 includes an air drying bracket 61 and at least one fan 62 provided on the air drying bracket 61. During operation, the fan 62 blows air towards the plastic strip 10 to remove the water attached to the surface of the plastic strip 10.

[0027] The working principle of this spiral decorative strip processing mechanism is briefly described below:

[0028] During operation, a plastic strip roll is stored on the unwinding shaft 23 of the plastic strip unwinding device 2 (the plastic strip 10 is in a flat strip shape, and its material can be PET or other thermoplastic plastics). The unwinding shaft 23 of the plastic strip unwinding device 2 continuously rotates under the drive of the unwinding motor 24 to continuously release the plastic strip 10. The plastic strip 10 released from the plastic strip roll sequentially passes through the heating and softening device 3 and the cooling and shaping device 4 from front to back, and finally is wound by the winding shaft 53 of the finished product winding device 5. When the plastic strip 10 passes through the heating and softening device 3, the heating and softening device 3 heats it to make it soft. While the softened plastic strip 10 moves backward, the unwinding support 21 rotates forward under the drive of the first rotating mechanism 22, and drives the plastic strip roll to rotate forward through the unwinding shaft 23. The winding support 51 rotates backward under the drive of the second rotating mechanism 52, and drives the plastic strip 10 to rotate backward through the winding shaft 53. Thus, different-direction torsional forces can be applied to both ends of the plastic strip 10 in the heating and softening device 3 by the plastic strip unwinding device 2 and the finished product winding device 5, and torsional forces are simultaneously applied to the softened plastic strip 10 at the front and rear ends for twisting, so that the plastic strip 10 undergoes torsional deformation to form a spiral shape; when the deformed plastic strip 10 passes through the cooling and shaping device 4, the cooling and shaping device 4 quickly cools and shapes the deformed plastic strip 10 to form a spiral decorative strip 20; finally, the winding shaft 53 of the finished product winding device 5 continuously rotates under the drive of the winding motor 54 to wind the cooled and shaped spiral decorative strip 20 to obtain a finished roll of the spiral decorative strip 20.

[0029] In addition, it should be noted that for the specific embodiments described in this specification, the names of their respective parts and the like can be different. Any equivalent or simple changes made according to the structure, features, and principles of the utility model patent concept are included in the protection scope of the utility model patent. Those skilled in the technical field to which the utility model belongs can make various modifications, supplements, or use similar methods for substitution to the specific embodiments described, as long as they do not deviate from the structure of the utility model or exceed the scope defined by this claim book, they should fall within the protection scope of the utility model.

Claims

1. A processing mechanism for a spiral decorative strip, characterized in that: It includes a frame, a plastic strip unwinding device, a heating and softening device, a cooling and shaping device and a finished product winding device. The plastic strip unwinding device, the heating and softening device, the cooling and shaping device and the finished product winding device are all installed on the frame and arranged in sequence from front to back; the plastic strip unwinding device includes an unwinding bracket, a first rotating mechanism for driving the unwinding bracket to rotate, an unwinding shaft and an unwinding motor. The first rotating mechanism is installed on the frame, the rotation axis of the unwinding bracket is forward and backward, the unwinding motor is installed on the unwinding bracket, and the unwinding shaft is rotatably installed on the unwinding bracket and is transmission-connected to the output shaft of the unwinding motor.

2. The spiral decorative strip processing mechanism according to claim 1, characterized in that: The first rotating mechanism includes a first rotating shaft, a first rotating motor and a first reducer. The first rotating shaft can be rotatably mounted on the frame and runs forward and backward. The first rotating motor is mounted on the frame. The output shaft of the first rotating motor is transmission-connected to the first rotating shaft through the first reducer. The unwinding bracket is fixedly mounted on the first rotating shaft.

3. A processing mechanism for a spiral decorative strip according to claim 1, characterized in that: The finished product winding device includes a winding bracket, a second rotating mechanism for driving the winding bracket to rotate, a winding shaft and a winding motor. The second rotating mechanism is installed on the frame, the rotation axis of the winding bracket is forward and backward, and the rotation direction of the unwinding bracket is opposite to the rotation direction of the winding bracket; the winding motor is installed on the winding bracket, and the winding shaft can be rotatably installed on the winding bracket and is transmission-connected to the winding motor.

4. A processing mechanism for a spiral decorative strip according to claim 3, characterized in that: The second rotating mechanism includes a second rotating shaft, a second rotating motor and a second reducer. The second rotating shaft can be rotatably mounted on the frame and runs forward and backward. The second rotating motor is mounted on the frame. The output shaft of the second rotating motor is transmission-connected to the second rotating shaft through the second reducer. The winding bracket is fixedly mounted on the second rotating shaft.

5. A spiral decorative strip processing mechanism according to any one of claims 1 to 4, characterized in that: The heating and softening device comprises an oven and an electric heater. The electric heater is installed in the inner cavity of the oven. The front side and the rear side of the oven are respectively provided with openings.

6. The spiral decorative strip processing mechanism according to claim 5, characterized in that: The electric heater comprises a plurality of electric heating tubes, each of which is installed at the top and the bottom of the oven cavity respectively.

7. A processing mechanism for a spiral decorative strip according to any one of claims 1-4, characterized in that: The cooling and shaping device includes a cooling box, a water receiving trough and multiple cold water nozzles. The cooling box is installed on the frame. The front and rear sides of the cooling box are respectively provided with openings. The water receiving trough is installed at the bottom of the inner cavity of the cooling box and its notch is set upward. Each cold water nozzle is installed at the top of the inner cavity of the cooling box and is arranged in sequence from front to back.

8. The processing mechanism for a spiral decorative strip according to claim 7, characterized in that: An air-drying device is provided between the cooling and shaping device and the finished product winding device. The air-drying device includes an air-drying bracket and at least one fan provided on the air-drying bracket.

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