A microwave vacuum synthetic leather pre-curing device

The microwave vacuum synthetic leather pre-curing device utilizes electromagnetic waves and a threaded structure to achieve vacuum microwave curing of synthetic leather, solving the problem of slow drying speed in traditional methods and improving drying efficiency.

CN224446555UActive Publication Date: 2026-07-03FUJIAN HUATE SYNTHETIC LEATHER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN HUATE SYNTHETIC LEATHER CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional drying methods are slow in synthetic leather production and cannot compare with microwave vacuum drying, resulting in low efficiency.

Method used

A microwave vacuum synthetic leather pre-curing device is used to cure the adhesive in the synthetic leather by using electromagnetic waves emitted by a magnetron, and to achieve the pressing and sealing of the synthetic leather by a motor-driven threaded structure, thereby creating a vacuum environment for microwave curing.

Benefits of technology

It achieves simultaneous internal and external heating of synthetic leather, and the drying speed is 4-20 times faster than traditional hot air drying, thus improving production efficiency.

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Abstract

This utility model discloses a microwave vacuum synthetic leather pre-curing device, comprising: a vacuum curing chamber, with magnetrons fixedly connected to both sides of the top of the vacuum curing chamber, waveguides provided at the output ends of the magnetrons, a first motor fixedly connected to the middle of the top of the vacuum curing chamber, a threaded column fixedly connected to the drive end of the first motor, a threaded plate threadedly connected to the outer side of the threaded column, a lower pressure plate fixedly connected to both ends of the bottom of the threaded plate, sliding rods slidably connected to both ends of the threaded plate, the top ends of the sliding rods being fixedly connected to the vacuum curing chamber, and fixed plates fixedly connected to the upper sides of both sides of the vacuum curing chamber. Driven by a second motor, the threaded rods rotate, engaging with the threaded blocks to achieve threaded movement, thereby causing the sealing plate to descend. This facilitates the insertion of the sealing plate into the interior of the insertion base plate, achieving a sealing effect, thus realizing microwave curing in a vacuum environment.
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Description

Technical Field

[0001] This utility model relates to the field of micro-synthetic leather curing technology, and in particular to a microwave vacuum synthetic leather pre-curing device. Background Technology

[0002] Synthetic leather is a man-made material that mimics the appearance and properties of natural leather, primarily made from polymers such as polyurethane (PU) or polyvinyl chloride (PVC). Its production process includes base fabric treatment, coating, and embossing, ultimately creating imitation leather products with texture, elasticity, and abrasion resistance. The advantages of synthetic leather include: environmental friendliness: no animal hides or fur are required, reducing slaughter needs; some processes utilize solvent-free technologies to reduce pollution; durability: tear-resistant, acid and alkali-resistant, and long service life; versatility: different colors, textures, and hardness can be achieved by adjusting the process, meeting the needs of various fields such as clothing, footwear, bags, and furniture; cost advantage: the price is only 1 / 3 to 1 / 2 of genuine leather, suitable for large-scale production. Currently, with the application of new technologies such as microwave vacuum and water-based polyurethane, synthetic leather has approached the breathability and environmental performance of natural leather, becoming an important alternative material in the fashion and industrial sectors.

[0003] In the production process of synthetic leather, existing technologies require curing and drying of the internal adhesives. However, traditional methods involve drying. Microwave vacuum drying, on the other hand, is different from traditional drying. Microwaves directly act on the water molecules inside the material, achieving simultaneous heating inside and out. This results in a drying speed that is 4-20 times faster than traditional hot air drying, making it more efficient and easier to operate. Utility Model Content

[0004] The purpose of this invention is to provide a microwave vacuum synthetic leather pre-curing device, which solves the problem that traditional methods all use drying. However, unlike traditional drying, microwave vacuum drying directly acts on the water molecules inside the material, achieving simultaneous heating inside and outside, and the drying speed is 4-20 times faster than traditional hot air drying.

[0005] To achieve the above objectives, a microwave vacuum synthetic leather pre-curing device is provided, comprising: a vacuum curing chamber, with magnetrons fixedly connected to both sides of the top of the vacuum curing chamber, a waveguide provided at the output end of the magnetrons, a first motor fixedly connected to the middle of the top of the vacuum curing chamber, a threaded column fixedly connected to the drive end of the first motor, a threaded plate threadedly connected to the outer side of the threaded column, a lower pressure plate fixedly connected to both ends of the bottom of the threaded plate, sliding rods slidably connected to both ends of the threaded plate, the top of the sliding rods being fixedly connected to the vacuum curing chamber, and fixed plates fixedly connected to the upper sides of both sides of the vacuum curing chamber, with a threaded rod rotatably connected to one side of the bottom end of the fixed plate.

[0006] According to the microwave vacuum synthetic leather pre-curing device, a threaded block is threadedly connected to the middle of the threaded rod, and a sealing plate is fixedly connected to the rear side of the threaded block.

[0007] According to the microwave vacuum synthetic leather pre-curing device, both sides of the bottom of the vacuum curing box are fixedly connected with plug-in base plates, and the plug-in base plates and the sealing plates are plugged in and matched.

[0008] According to the microwave vacuum synthetic leather pre-curing device, an L-shaped base plate is fixedly connected to one bottom side of the vacuum curing box, a support frame is fixedly connected to the top of the L-shaped base plate, and a take-up roller is rotatably connected to the top of the support frame.

[0009] According to the microwave vacuum synthetic leather pre-curing device, a control panel is fixedly connected to the front center of the vacuum curing box, and a vacuum pump is fixedly connected to one side of the top center of the vacuum curing box.

[0010] According to the microwave vacuum synthetic leather pre-curing device, the output end of the waveguide is provided with electromagnetic waves.

[0011] According to the microwave vacuum synthetic leather pre-curing device, both ends of the rear side of the vacuum curing box are hinged with doors, and the bottom of the vacuum curing box is fixedly connected to a base plate.

[0012] According to the microwave vacuum synthetic leather pre-curing device, a second motor is fixedly connected to one end of the top of the fixing plate, and the drive end of the second motor is fixedly connected to the threaded rod.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] 1. This utility model is equipped with a first motor, a threaded column, a threaded plate, and a lower pressure plate to cure synthetic leather inside a vacuum curing chamber. During the curing process, the first motor drives the threaded column to rotate, and the threaded column engages with the threaded plate to achieve threaded downward movement. The lower pressure plate presses the synthetic leather at the bottom. During the pressing process, the magnetron emits electromagnetic waves, which can cure the adhesive in the synthetic leather, thereby achieving the curing effect.

[0015] 2. This utility model is equipped with: a second motor, a threaded rod, a threaded block, a sealing plate, and a plug-in base plate. The second motor drives the threaded rod to rotate, and after rotation, it engages with the threaded block to achieve threaded movement, thereby driving the sealing plate to descend. This allows the sealing plate to be inserted into the plug-in base plate to achieve a sealing effect, thus enabling microwave curing in a vacuum environment.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional structural diagram of a microwave vacuum synthetic leather pre-curing device according to the present invention;

[0019] Figure 2 This is a cross-sectional side view of a microwave vacuum synthetic leather pre-curing device according to the present invention;

[0020] Figure 3 This utility model relates to a microwave vacuum synthetic leather pre-curing device. Figure 2 Enlarged view of point A in the image;

[0021] Figure 4 This is a three-dimensional structural diagram of the rear side of a microwave vacuum synthetic leather pre-curing device according to the present invention.

[0022] Legend:

[0023] The components include: 1. Vacuum curing chamber; 2. Magnetron; 3. First motor; 4. Second motor; 5. Fixing plate; 6. Sealing plate; 7. Threaded rod; 8. Rewinding roller; 9. Support frame; 10. L-shaped base plate; 11. Vacuum pump; 12. Threaded column; 13. Threaded plate; 14. Lower pressure plate; 15. Base plate; 16. Threaded block; 17. Insertion base plate; 18. Chamber door; 19. Electromagnetic wave; 20. Control panel. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4This utility model discloses a microwave vacuum synthetic leather pre-curing device, comprising: a vacuum curing chamber 1, with magnetrons 2 fixedly connected to both sides of the top of the vacuum curing chamber 1. During the pressing process, the magnetrons 2 emit electromagnetic waves, which can cure the adhesive in the synthetic leather, thereby achieving the curing effect. A waveguide is provided at the output end of the magnetrons 2. A first motor 3 is fixedly connected to the middle of the top of the vacuum curing chamber 1. During the curing process, the first motor 3 drives the threaded post 12 to rotate. The threaded post 12 engages with the threaded plate 13, thereby achieving the downward movement of the thread. The drive end of the first motor 3 is fixedly connected to the threaded post 12, and the outer side of the threaded post 12 is threadedly connected to... There is a threaded plate 13, and both ends of the bottom of the threaded plate 13 are fixedly connected to the pressure plate 14. The pressure plate 14 presses the synthetic leather at the bottom. The two ends of the threaded plate 13 are slidably connected to the slide rods. The top of the slide rods is fixedly connected to the vacuum curing box 1. The upper sides of the vacuum curing box 1 are fixedly connected to the upper sides of the vacuum curing box 1. The bottom side of the fixed plate 5 is rotatably connected to the threaded rod 7. The output end of the waveguide is provided with an electromagnetic wave 19. The top end of the fixed plate 5 is fixedly connected to the second motor 4. During the curing process, the second motor 4 drives the threaded rod 7 to rotate. After rotation, it engages with the threaded block 16 to achieve threaded movement. The drive end of the second motor 4 is fixedly connected to the threaded rod 7.

[0026] A threaded block 16 is threadedly connected to the middle of the threaded rod 7. A sealing plate 6 is fixedly connected to the rear side of the threaded block 16. The lowering of the sealing plate 6 facilitates its insertion into the interior of the insertion base plate 17 to achieve a sealing effect, thereby realizing microwave curing in a vacuum environment. Insertion base plates 17 are fixedly connected to both bottom ends of the vacuum curing chamber 1. The insertion base plates 17 and the sealing plate 6 are inserted and matched. An L-shaped base plate 10 is fixedly connected to one bottom end of the vacuum curing chamber 1. A support frame 9 is fixedly connected to the top of the L-shaped base plate 10. A winding roller 8 is rotatably connected to the top of the support frame 9. The synthetic leather is conveyed by winding it through the winding roller 8. The synthetic leather is cured inside the vacuum curing chamber 1 by rotation. A control panel 20 is fixedly connected to the middle of the front side of the vacuum curing chamber 1. A vacuum pump 11 is fixedly connected to one side of the middle of the top of the vacuum curing chamber 1. Doors 18 are hinged to both ends of the rear side of the vacuum curing chamber 1. A base plate 15 is fixedly connected to the bottom of the interior of the vacuum curing chamber 1.

[0027] Working principle: In use, the synthetic leather is first conveyed by winding the take-up roller 8. The rotation of the roller allows the synthetic leather to be cured inside the vacuum curing chamber 1. During the curing process, the first motor 3 drives the threaded column 12 to rotate. The threaded column 12 engages with the threaded plate 13, allowing the thread to move downwards. The lower pressure plate 14 presses the synthetic leather at the bottom. During the pressing process, the magnetron 2 emits electromagnetic waves, which can cure the adhesive in the synthetic leather, thus achieving the curing effect. During the curing process, the second motor 4 drives the threaded rod 7 to rotate. After rotation, it engages with the threaded block 16, allowing the thread to move and thus causing the sealing plate 6 to descend. This facilitates the insertion of the sealing plate 6 into the insert base plate 17, achieving a sealing effect, thereby realizing microwave curing in a vacuum environment.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A microwave vacuum synthetic leather pre-curing apparatus comprising: A vacuum curing chamber (1) is characterized in that a magnetron (2) is fixedly connected to both sides of the top of the vacuum curing chamber (1), a waveguide is provided at the output end of the magnetron (2), a first motor (3) is fixedly connected to the middle of the top of the vacuum curing chamber (1), a threaded column (12) is fixedly connected to the drive end of the first motor (3), a threaded plate (13) is threadedly connected to the outer side of the threaded column (12), a lower pressure plate (14) is fixedly connected to both ends of the bottom of the threaded plate (13), a slide rod is slidably connected to both ends of the threaded plate (13), the top end of the slide rod is fixedly connected to the vacuum curing chamber (1), a fixing plate (5) is fixedly connected to the upper sides of both sides of the vacuum curing chamber (1), and a threaded rod (7) is rotatably connected to one side of the bottom end of the fixing plate (5).

2. A microwave vacuum synthetic leather pre-curing apparatus according to claim 1, characterized in that, The threaded rod (7) is threadedly connected to a threaded block (16) at its middle part, and a sealing plate (6) is fixedly connected to the rear side of the threaded block (16).

3. A microwave vacuum synthetic leather pre-curing apparatus according to claim 2, characterized in that, Both sides of the vacuum curing box (1) are fixedly connected to the bottom of the bottom, and the bottom plate (17) and the sealing plate (6) are inserted into each other.

4. The microwave vacuum synthetic leather pre-curing device according to claim 1, wherein, An L-shaped base plate (10) is fixedly connected to one side of the bottom of the vacuum curing box (1), and a support frame (9) is fixedly connected to the top of the L-shaped base plate (10). A take-up roller (8) is rotatably connected to the top of the support frame (9).

5. The microwave vacuum synthetic leather pre-curing device according to claim 1, wherein, A control panel (20) is fixedly connected to the middle of the front side of the vacuum curing chamber (1), and a vacuum pump (11) is fixedly connected to one side of the middle of the top of the vacuum curing chamber (1).

6. A microwave vacuum synthetic leather pre-curing apparatus according to claim 1, wherein, The waveguide output end is equipped with an electromagnetic wave (19).

7. The microwave vacuum synthetic leather pre-curing device according to claim 1, wherein, Both ends of the rear side of the vacuum curing box (1) are hinged with doors (18), and the bottom of the vacuum curing box (1) is fixedly connected with a bottom plate (15).

8. The microwave vacuum synthetic leather pre-curing device according to claim 1, wherein, The top end of the fixing plate (5) is fixedly connected to a second motor (4), and the drive end of the second motor (4) is fixedly connected to the threaded rod (7).