High-temperature drying device for plastic tableware processing

Abstract

The utility model relates to the technical field of drying devices, and discloses a high-temperature drying device for plastic tableware processing. The high-temperature drying device for plastic tableware processing is applied to a conveying belt and comprises a rack, a plurality of positioning roll shafts, a dryer and an air inlet pipe, light plastic tableware can be effectively fixed through the multiple positioning roll shafts and prevented from being blown away by strong wind in the drying process, and the drying effect of the light plastic tableware is improved. Meanwhile, the tableware and the surface of the conveying belt are kept relatively static, and uneven drying caused by movement is avoided. The dryer blows air to the plastic tableware through the interval gap between the adjacent positioning roller shafts, the tableware continuously flows along with the conveying belt, and product deformation or damage caused by long-time high-temperature heating of the tableware is avoided.

Description

Technical Field

[0001] This application relates to the field of drying equipment technology, for example to a high-temperature drying device for processing plastic tableware. Background Technology

[0002] The descriptions in this section are provided only as background information relating to this disclosure and do not constitute prior art.

[0003] After injection molding, plastic tableware undergoes rigorous quality inspection, including checking for defects such as missing parts and burrs. Some products also require subsequent polishing and assembly processes, which inevitably introduce contaminants. Therefore, thoroughly cleaning and drying plastic tableware before packaging is a crucial step in ensuring product quality.

[0004] However, existing drying equipment is primarily designed for products with higher density, often employing methods such as strong winds or high temperatures. This type of equipment is clearly inadequate for plastic tableware, especially thin-walled, lightweight pieces. Strong winds can easily blow lightweight tableware away, causing damage or uneven drying; while prolonged high-temperature drying can deform plastic tableware, affecting dimensional accuracy and appearance. Summary of the Invention

[0005] This application provides a high-temperature drying device for processing plastic tableware. Multiple positioning rollers effectively fix lightweight plastic tableware, preventing it from being blown away by strong winds during the drying process. Simultaneously, it ensures the tableware remains relatively stationary with respect to the conveyor belt surface, avoiding uneven drying caused by movement. The dryer blows air onto the plastic tableware through the gaps between adjacent positioning rollers. As the tableware continuously flows with the conveyor belt, it prevents product deformation or damage caused by prolonged high-temperature heating.

[0006] A high-temperature drying device for processing plastic tableware, applied on a conveyor belt, includes: a frame, multiple positioning rollers, a dryer, and an air inlet pipe;

[0007] The frame is fixedly installed above the conveyor belt;

[0008] Multiple positioning rollers are located above the conveyor belt, rotatably mounted on the frame, perpendicular to the flow direction of the conveyor belt, parallel and spaced apart, and rotate to press on the plastic tableware so that it is fixed relative to the surface of the conveyor belt.

[0009] The dryer, mounted on the frame, blows air onto the plastic tableware through the gaps between adjacent positioning rollers.

[0010] The air inlet duct is connected to the dryer at one end and to the high-temperature fan at the other end.

[0011] In some embodiments, the frame includes: a vertical beam, a horizontal beam, a fixed frame, and a vertical linear lifting mechanism;

[0012] There are two vertical beams, which are fixedly installed on both sides of the conveyor belt;

[0013] A crossbeam is located above the conveyor belt and is connected to the vertical beam at both ends.

[0014] The fixed frame is rotatably connected to the positioning roller shaft and to the dryer, and is located below the crossbeam;

[0015] The vertical linear lifting mechanism is mounted on the crossbeam and connected to the fixed frame, driving the fixed frame to move up and down.

[0016] In some embodiments, the vertical linear lifting mechanism includes: a cylinder, a slide rail, and a slider;

[0017] The cylinder is fixedly mounted on the crossbeam, and the telescopic rod is connected to the fixed frame.

[0018] The slide rail is mounted on the vertical beam;

[0019] The slider is mounted on a fixed frame and slides in conjunction with the slide rail.

[0020] In some embodiments, the conveyor belt is a mesh chain conveyor belt, and an air guide trough is provided in the middle of the conveyor belt. The air guide trough includes an arc-shaped trough body, which is located below the upper conveying surface of the conveyor belt and is correspondingly arranged with the dryer to guide the air blown down from the upper dryer to the bottom of the plastic tableware behind.

[0021] In some embodiments, the dryer includes: a housing and a gas distribution plate;

[0022] The shell has an internal cavity;

[0023] The air distribution plate has multiple evenly spaced air vents on its surface. It is located inside the housing and divides the internal cavity into two parts, upper and lower. The upper part is connected to the air inlet pipe, and the lower part has an air outlet.

[0024] In some embodiments, the air inlet pipe is a telescopic pipe.

[0025] The high-temperature drying device for processing plastic tableware provided in this application can achieve the following technical effects:

[0026] Multiple positioning rollers effectively hold lightweight plastic tableware in place, preventing it from being blown away by strong winds during the drying process. This also ensures the tableware remains relatively stationary against the conveyor belt surface, avoiding uneven drying caused by movement. The dryer blows air onto the plastic tableware through the gaps between adjacent positioning rollers. As the tableware continuously rotates with the conveyor belt, it prevents deformation or damage caused by prolonged high-temperature heating.

[0027] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0028] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0029] Figure 1 This is a three-dimensional structural schematic diagram of a high-temperature drying device for processing plastic tableware provided in an embodiment of this disclosure;

[0030] Figure 2 yes Figure 1 Enlarged view of point a in the middle;

[0031] Figure 3 This is a side view of a high-temperature drying device for processing plastic tableware provided in an embodiment of this disclosure;

[0032] Figure 4 yes Figure 3 Schematic diagram of the cross section along line A in the middle;

[0033] Figure 5 yes Figure 3 Schematic diagram of the cross section along the B direction;

[0034] Figure 6 yes Figure 5 Enlarged view of point b in the middle;

[0035] Figure 7 yes Figure 5 Enlarged view of point c in the middle;

[0036] Figure 8 This is a three-dimensional schematic diagram of the rack provided in an embodiment of this disclosure;

[0037] Figure 9 This is a schematic front view of the rack provided in an embodiment of this disclosure;

[0038] Figure 10 This is a three-dimensional schematic diagram of the air guide channel provided in the embodiment of this disclosure;

[0039] Figure 11 This is a schematic diagram of a dryer provided in an embodiment of this disclosure;

[0040] Figure 12 This is a schematic diagram of the internal structure of the dryer provided in an embodiment of this disclosure.

[0041] Figure label:

[0042] 1. Conveyor belt; 2. Air inlet duct; 3. Frame; 31. Vertical beam; 32. Horizontal beam; 33. Vertical linear lifting mechanism; 34. Fixed frame; 35. H-frame; 36. Mounting plate; 37. Slider; 38. Cylinder; 4. Positioning roller; 5. Dryer; 51. Air distribution plate; 52. Air outlet; 6. Air guide trough; 61. Horizontal plate; 62. Air inlet; 63. Air outlet; 64. Arc-shaped trough. Detailed Implementation

[0043] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0044] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure 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 interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0045] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0046] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Unless otherwise stated, the term "multiple" means two or more.

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0049] Combination Figure 1-12 As shown, this embodiment of the present disclosure provides a high-temperature drying device for processing plastic tableware, which is applied on a conveyor belt 1, and the plastic tableware flows on the conveyor belt 1. The device includes: a frame 3, multiple positioning rollers 4, a dryer 5, and an air inlet pipe 2.

[0050] Frame 3 is fixedly installed above conveyor belt 1;

[0051] Multiple positioning rollers 4 are positioned above the conveyor belt 1 and rotatably mounted on the frame 3. They are perpendicular to the flow direction of the conveyor belt 1, parallel to it, and spaced apart. They rotate and press against the plastic tableware, fixing it relative to the surface of the conveyor belt 1. The height and pressure of the positioning rollers 4 are adjusted according to the thickness and height of the plastic tableware, allowing them to gently press against the surface, securing the tableware without causing deformation. Each positioning roller 4 includes a metal shaft, with both ends rotatably connected to the frame 3. A rubber or sponge sleeve is fitted around the outer edge of the metal shaft. The length of the positioning roller 4 is greater than the size of the tableware but less than the width of the conveyor belt 1.

[0052] Dryer 5 is mounted on frame 3 and blows air onto plastic tableware through the gap between adjacent positioning rollers 4; there are 5 positioning rollers 4 and dryer 5 blows air vertically downward from the gap between the second and third positioning rollers 4.

[0053] Air inlet duct 2 connects to dryer 5 at one end and high-temperature fan at the other end. The high-temperature fan can be a general-purpose hot air blower manufactured by Shanghai Chuwei Electromechanical: HCW-TY / XH-220-3A-018-LB.

[0054] Operation process: The conveyor belt 1 and high-temperature fan are started. The plastic tableware moves along the conveyor belt 1 to below the positioning roller 4 and is pressed and fixed. The dryer 5 blows high-temperature hot air onto the surface of the tableware through the gaps, achieving rapid and uniform drying. The dried tableware then enters the next process along the conveyor belt 1.

[0055] The high-temperature drying apparatus for processing plastic tableware provided in this embodiment effectively fixes lightweight plastic tableware with multiple positioning rollers 4, preventing it from being blown away by strong winds during the drying process. It also ensures that the tableware remains relatively stationary with respect to the surface of the conveyor belt 1, avoiding uneven drying caused by movement. The dryer 5 blows air onto the plastic tableware through the gaps between adjacent positioning rollers 4. As the tableware continuously flows with the conveyor belt 1, it prevents product deformation or damage caused by prolonged high-temperature heating.

[0056] In some embodiments, the frame 3 includes: a vertical beam 31, a horizontal beam 32, a fixed frame 34, and a vertical linear lifting mechanism 33;

[0057] Two vertical beams 31 are provided and are fixedly installed on both sides of the conveyor belt 1 respectively;

[0058] A crossbeam 32 is located above the conveyor belt 1 and is connected to the vertical beam 31 at both ends;

[0059] The fixed frame 34 is rotatably connected to the positioning roller shaft 4 and connected to the dryer 5, and is located below the crossbeam 32;

[0060] The vertical linear lifting mechanism 33 is mounted on the crossbeam 32 and connected to the fixed frame 34, driving the fixed frame 34 to move up and down.

[0061] In some embodiments, the vertical linear lifting mechanism 33 includes: a cylinder 38, a slide rail, and a slider 37;

[0062] A cylinder 38 is fixedly mounted on a crossbeam 32. Two crossbeams 32 are arranged, one above the other, each connected to one end of the cylinder 38. A telescopic rod is connected to a fixed frame 34. The fixed frame 34 includes an H-frame 35 and mounting plates 36. The middle of the H-frame 35 is connected to the telescopic end of the cylinder 38, and both sides of the H-frame 35 are connected to the mounting plates 36 via connecting plates. The two mounting plates 36 are rotatably connected to the positioning roller shaft 4. The cylinder 38 can also be replaced by a hydraulic cylinder, an electric telescopic rod, or a motor screw mechanism.

[0063] The slide rail is mounted on the vertical beam 31; both the vertical beam 31 and the horizontal beam 32 are made of aluminum profiles, and the grooves on the surface of the aluminum profiles serve as slide rails. The slide rail can be replaced by a separate optical axis.

[0064] The slider 37 is mounted on the fixed frame 34 and slides in conjunction with the slide rail. The slider 37 is connected to the side plate of the H-frame 35.

[0065] In some embodiments, the conveyor belt 1 is a mesh chain conveyor belt 1. The mesh chain conveyor belt 1 can carry the tableware on the surface and has a large number of channels to allow air to flow between the upper and lower sides of the conveyor belt 1 under pressure difference. The middle of the conveyor belt 1 is provided with an air guide trough 6, which includes an arc-shaped trough 64. The arc-shaped trough 64 is located below the upper conveying surface of the conveyor belt 1 and is correspondingly arranged with the dryer 5 to guide the air blown down from the upper dryer 5 to the bottom of the plastic tableware behind. The air guide trough 6 also includes a support plate. There are two support plates, which are respectively connected to the left and right sides of the air guide trough 6 to support the conveyor belt 1. The upper part of the arc-shaped trough 64 may also be provided with a horizontal plate 61. The horizontal plate 61 divides the upper opening of the arc-shaped trough 64 into an air inlet 62 and an air outlet 63. The horizontal plate 61 can not only support the conveyor belt 1, but also limit the size and position of the air outlet 63 and the air inlet 62, better guide the airflow, and enhance the drying effect at the bottom.

[0066] In some embodiments, the dryer 5 includes: a housing and a gas distribution plate 51;

[0067] The housing has an internal cavity; the length of the housing is similar to the length of the positioning roller shaft 4; the housing is rectangular and tapers downward at the bottom.

[0068] The air distribution plate 51 has multiple evenly spaced vent holes on its surface and is located inside the housing, dividing the internal cavity into upper and lower parts. The upper part is connected to the air inlet pipe 2, and the lower part has an air outlet 52. The housing is relatively long, and if the hot air entering the housing were not distributed through the air outlet 52, the hot air would not be able to be discharged evenly. The air outlet 52 is a rectangular hole with a length the same as the length of the housing.

[0069] In some embodiments, the air inlet pipe 2 is a telescopic pipe.

[0070] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A high-temperature drying device for processing plastic tableware, applied on a conveyor belt, characterized in that, include: The frame is fixedly installed above the conveyor belt; Multiple positioning rollers are located above the conveyor belt, rotatably mounted on the frame, perpendicular to the flow direction of the conveyor belt, parallel and spaced apart, and rotate to press on the plastic tableware so that it is fixed relative to the surface of the conveyor belt. The dryer, mounted on the frame, blows air onto the plastic tableware through the gaps between adjacent positioning rollers. The air inlet duct is connected to the dryer at one end and to the high-temperature fan at the other end.

2. The high-temperature drying device for processing plastic tableware according to claim 1, characterized in that, The rack includes: There are two vertical beams, which are fixedly installed on both sides of the conveyor belt; A crossbeam is located above the conveyor belt and is connected to the vertical beam at both ends. The fixed frame is rotatably connected to the positioning roller shaft and to the dryer, and is located below the crossbeam; The vertical linear lifting mechanism is mounted on the crossbeam and connected to the fixed frame, driving the fixed frame to move up and down.

3. The high-temperature drying device for processing plastic tableware according to claim 2, characterized in that, The vertical linear lifting mechanism includes: The cylinder is fixedly mounted on the crossbeam, and the telescopic rod is connected to the fixed frame. The slide rail is mounted on the vertical beam; The slider is mounted on a fixed frame and slides in conjunction with the slide rail.

4. A high-temperature drying apparatus for processing plastic tableware according to claim 1, 2 or 3, characterized in that, The conveyor belt is a mesh chain conveyor belt, and an air guide duct is provided in the middle of the conveyor belt. The air guide duct includes: An arc-shaped trough is located below the upper conveyor surface of the conveyor belt, corresponding to the dryer, and guides the air blown down from the upper dryer to the bottom of the plastic tableware behind.

5. The high-temperature drying device for processing plastic tableware according to claim 1, characterized in that, The dryer includes: The shell has an internal cavity; The air distribution plate has multiple evenly spaced air vents on its surface. It is located inside the housing and divides the internal cavity into two parts, upper and lower. The upper part is connected to the air inlet pipe, and the lower part has an air outlet.

6. The high-temperature drying apparatus for processing plastic tableware according to claim 2, characterized in that, The air inlet pipe is a telescopic pipe.

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