Water-based synthetic leather composite post-drying oven
By designing an oven with zoned temperature control and dehumidification structure, the problems of high heat demand and slow drying rate during the drying process of water-based synthetic leather were solved, achieving efficient and low-cost drying results and ensuring product quality and smooth conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG JIUHONG PRINTING & DYEING MASCH CO LTD
- Filing Date
- 2025-06-21
- Publication Date
- 2026-07-14
AI Technical Summary
The drying process of water-based synthetic leather requires a large amount of heat and has a slow drying rate, and the existing equipment design has shortcomings.
Design an oven that includes multiple drying units, featuring zoned temperature control, dehumidification vents, and air supply ducts, combined with aluminum alloy rollers and power rollers, to achieve efficient heat utilization and smooth transport of leather materials.
It improves drying efficiency, reduces equipment length and manufacturing costs, ensures product quality and smooth conveying, and enhances the equipment's applicability.
Smart Images
Figure CN224498984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a synthetic leather processing equipment, specifically to a drying oven for drying water-based synthetic leather after lamination. Background Technology
[0002] Water-dispersed polyurethane resins are used to replace traditional solvent-dissolved polyurethane resins in the production of synthetic leather. The resulting synthetic leather is water-based synthetic leather, which has better environmental performance and is an important direction for the development of synthetic leather.
[0003] However, since the heat consumption of water evaporation is much greater than that of organic solvent evaporation, the drying process requires a large amount of heat and has a slow drying rate, which is also a problem that needs to be considered in equipment design. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an oven for drying water-based synthetic leather after lamination.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a drying oven for drying water-based synthetic leather after lamination, comprising at least ten drying units, each drying unit comprising a box body, wherein several free rollers are provided in the box body, an upper air supply duct is provided above the free rollers in the box body, a lower air supply duct is provided below the free rollers in the box body, several blowpipes facing the free rollers are provided on the upper air supply duct, several blowpipes facing the free rollers are also provided on the lower air supply duct, several dehumidification ports are provided at the top of the box body, and dehumidification fans are provided at the dehumidification ports, and air supply ports are provided on the sides of the box body; a circulating fan is provided at the bottom of the box body, an air inlet pipe is provided at the air inlet of the circulating fan, and an air outlet pipe is provided at the air outlet of the circulating fan, both the upper and lower air supply ducts are connected to the air outlet pipe, and a heating coupler and a thermometer are provided in the box body.
[0006] As a preferred embodiment, the drying temperature range of the drying unit is 100-150℃.
[0007] As a preferred embodiment, the installation height of the free rollers in the drying unit on the feeding side gradually increases along the feeding direction; the installation height of the free rollers in the drying unit on the discharging side gradually decreases along the feeding direction.
[0008] As a preferred embodiment, the upper part of the blow pipe of the drying unit is inverted trapezoidal in shape, and the blow nozzle on it is slit-shaped.
[0009] As a preferred embodiment, the outer side of the foremost oven unit is provided with a feeding roller driven by a feeding power device; the outer side of the rearmost oven unit is provided with a feeding roller driven by a feeding power device.
[0010] As a preferred embodiment, the free idler roller is an aluminum alloy idler roller.
[0011] As a preferred embodiment, the cross-sectional area of the upper air supply duct and the lower air supply duct gradually decreases along the air supply direction.
[0012] The beneficial effects of this utility model are:
[0013] Because of the use of zoned temperature control drying, the equipment can be set with appropriate drying temperatures according to different products, thereby enhancing the applicability of the equipment.
[0014] Because the top of the oven has several dehumidification vents, each equipped with a dehumidification fan, the large amount of evaporated water vapor can be quickly discharged, improving drying efficiency. This, in turn, allows the oven to be as short as possible, reducing manufacturing costs and floor space.
[0015] In the feeding-side drying unit, the installation height of the free rollers gradually increases along the feeding direction; in the discharging-side drying unit, the installation height of the free rollers gradually decreases along the feeding direction. This maintains a slightly tensioned state on the leather material, facilitating material transport while preventing wrinkles, thus further ensuring product quality.
[0016] The upper part of the blow pipe of the drying unit is inverted trapezoidal in shape, and the blow nozzle on it is slit-shaped, which enhances the intensity and speed of the airflow and further improves the drying effect.
[0017] The outer side of the frontmost drying unit is equipped with a feeding roller driven by a feeding power unit; the outer side of the rearmost drying unit is equipped with a feeding roller driven by a feeding power unit, which makes the conveying of leather materials smoother.
[0018] The free idler roller is made of aluminum alloy, which makes it easier to achieve higher processing accuracy and has less deformation at high temperatures. Even if the oven is long, the error in conveying the leather material can be controlled within a very small range, thus better ensuring the processing quality.
[0019] The cross-sectional area of the air supply duct gradually decreases along the air supply direction, ensuring that the air pressure of the blow pipes is relatively uniform. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the main structure of a single drying unit in this utility model;
[0022] Figure 3 This is a side view of a single drying unit in this utility model.
[0023] In the diagram: 1 Free roller, 2 Upper air supply duct, 3 Lower air supply duct, 4 Spray nozzle, 5 Dehumidifier, 6 Circulating fan, 7 Inlet pipe, 8 Outlet pipe, 9 Feed roller, 10 Feeding roller, 11 Box body. Detailed Implementation
[0024] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.
[0025] like Figure 1-3 As shown, an oven for drying water-based synthetic leather after lamination includes up to fifteen drying units, wherein the drying temperature range of the drying units is 100-150℃.
[0026] The drying unit includes a housing 11, within which several free idler rollers 1 are arranged. An upper air supply duct 2 is located above the free idler rollers 1 within the housing 11, and a lower air supply duct 3 is located below the free idler rollers 1 within the housing 11. The cross-sectional area of the upper air supply duct 2 and the lower air supply duct 3 gradually decreases along the air supply direction. Several blowpipes are arranged on the upper air supply duct 2, directly facing the free idler rollers 1, and several blowpipes are also arranged on the lower air supply duct 3, directly facing the free idler rollers 1. The upper part of each blowpipe is trapezoidal in shape, and its nozzle 4 is a slit shape.
[0027] The top of the box 11 is provided with several dehumidification ports, and a dehumidification fan 5 is provided at each dehumidification port. An air supply port is provided on the side of the box 11. A circulating fan 6 is provided at the bottom of the box 11. An air inlet pipe 7 is provided at the air inlet of the circulating fan 6. An air outlet pipe 8 is provided at the air outlet of the circulating fan 6. The upper air supply pipe 2 and the lower air supply pipe 3 are both connected to the air outlet pipe 8. A heating coupler and a thermometer are provided inside the box 11.
[0028] The free idler roller 1 is an aluminum alloy idler roller. The installation height of the free idler roller 1 in the feeding side drying unit gradually increases along the feeding direction; the installation height of the free idler roller 1 in the discharging side drying unit gradually decreases along the feeding direction.
[0029] The outer side of the foremost drying oven unit is equipped with a feeding roller 9 driven by a feeding power device; the outer side of the rearmost drying oven unit is equipped with a feeding roller 10 driven by a feeding power device.
[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims
1. A drying oven for drying water-based synthetic leather after lamination, comprising at least ten drying units, each drying unit comprising a box body, wherein a plurality of free rollers are arranged in the box body, an upper air supply duct is arranged above the free rollers in the box body, a lower air supply duct is arranged in the box body below the free rollers, a plurality of blowpipes facing the free rollers are arranged on the upper air supply duct, and a plurality of blowpipes facing the free rollers are also arranged on the lower air supply duct, characterized in that: The top of the box is equipped with several dehumidification vents, each with a dehumidification fan. An air supply vent is located on the side of the box. A circulating fan is located at the bottom of the box. An air inlet pipe is located at the air inlet of the circulating fan, and an air outlet pipe is located at the air outlet of the circulating fan. Both the upper and lower air supply pipes are connected to the air outlet pipe. A heating coupler and a thermometer are located inside the box.
2. The drying oven for drying water-based synthetic leather after lamination as described in claim 1, characterized in that: The drying temperature range of the drying unit is 100-150℃.
3. The drying oven for drying water-based synthetic leather after lamination as described in claim 1, characterized in that: In the feeding-side drying unit, the installation height of the free rollers gradually increases along the feeding direction; in the discharging-side drying unit, the installation height of the free rollers gradually decreases along the feeding direction.
4. The drying oven for drying water-based synthetic leather after lamination as described in claim 1, characterized in that: The upper part of the blow pipe of the drying unit is inverted trapezoidal in shape, and the blow nozzle on it is slit-shaped.
5. The drying oven for drying water-based synthetic leather after lamination as described in claim 1, characterized in that: The outer side of the foremost drying oven unit is equipped with a feeding roller driven by a feeding power unit; the outer side of the rearmost drying oven unit is equipped with a feeding roller driven by a feeding power unit.
6. An oven for drying water-based synthetic leather after lamination as described in any one of claims 1-5, characterized in that: The free idler roller is an aluminum alloy idler roller.
7. The drying oven for drying water-based synthetic leather after lamination as described in claim 6, characterized in that: The cross-sectional area of the upper air supply duct and the lower air supply duct gradually decreases along the air supply direction.