Multi-layer fabric pressing device for waterproof cotton wadded curtain production

By combining the design of inner square tube, outer square tube, fixing components and hydraulic mechanism, the problem of uneven pressing in the production of waterproof cotton door curtains is solved, achieving uniform pressing of materials and stable operation of equipment, thus improving the quality of finished products and the durability of equipment.

CN224089843UActive Publication Date: 2026-04-07HENGSHUI JUNFA CANVAS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In the current production process of waterproof cotton door curtains, improper adjustment of the pressing equipment can cause the material to be too tight or too loose in certain areas, affecting waterproofing, heat insulation, and sound insulation, and may result in leaks and material deformation.

Method used

The design employs a combination of inner square tube, outer square tube, fixed components, hydraulic mechanism, and balance valve device. The hydraulic mechanism precisely controls the pressure, the screw rod system evenly transmits the force, and the balance valve device prevents overload, ensuring uniformity and stability of the pressing process.

Benefits of technology

This process achieves uniform pressing of waterproof cotton curtain materials, improves the quality and durability of finished products, reduces production downtime, extends equipment lifespan, and ensures the stability and consistency of the pressing process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224089843U_ABST
Patent Text Reader

Abstract

The utility model discloses a multi-layer fabric pressing device for waterproof cotton wadded curtain production. The multi-layer fabric pressing device comprises an inner square pipe and a balance valve device. When the hydraulic jack works, the pressure applied to the waterproof cotton wadded curtain material can be accurately controlled through the adjustment of the hydraulic mechanism and the control valve. According to the device, the applied pressure can be adjusted according to different material requirements, it is ensured that the pressing effect is optimal and the materials are not damaged, a screw rod system in the fixing assembly is beneficial to evenly transmitting force to a hydraulic jack, the situation of local overpressure or uneven pressing is avoided, even pressing of the waterproof cotton wadded curtain material is ensured, and the waterproof cotton wadded curtain material pressing efficiency is improved. And the balance valve device (comprising a valve element and a spring mechanism) effectively prevents the hydraulic system from being damaged due to overlarge pressure. And when the pressure in the system exceeds a safety value, the valve core is pushed by the spring to automatically release the pressure, so that the safety and durability of the whole system are protected.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a multi-layer fabric pressing device for the production of waterproof cotton door curtains. Background Technology

[0002] Waterproof cotton door curtains are commonly used in industrial and commercial settings. Their main function is to prevent water, dust, wind, and other external environmental factors from entering the interior space, while also providing insulation and soundproofing. To ensure the performance of waterproof cotton door curtains, a material pressing device is typically used during the production process. This device presses the waterproof cotton material together with other layers (such as waterproof membranes and insulation layers) during manufacturing. Through pressing, the materials are bonded more tightly, preventing separation between layers after prolonged use and improving the product's long-term stability and anti-aging capabilities.

[0003] Improper adjustment of the pressing equipment may cause some areas of the waterproof cotton door curtain to be too tight or too loose, which will affect its waterproof, heat insulation, and sound insulation effects. For example, some areas may have gaps, making it impossible to effectively isolate moisture and temperature. If the pressure is too high or too low when using the material pressing device, it may cause the waterproof cotton material to deform, affecting the appearance and performance of the door curtain, and may even damage the material, thus affecting the overall performance. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer fabric pressing device for the production of waterproof cotton door curtains, in order to solve the problem mentioned in the background art that if the pressing equipment is not properly adjusted, some areas of the waterproof cotton door curtain may be too tight or too loose, which will affect its waterproofness, heat insulation and sound insulation effects. For example, some areas may have gaps, resulting in the inability to effectively isolate moisture and temperature.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer fabric pressing device for producing waterproof cotton door curtains, comprising an inner square tube and a balance valve device, wherein an outer square tube is provided on the outside of the inner square tube, a fixing component is provided on the top of the inner square tube, a supporting component is provided on the bottom of the inner square tube, a hydraulic mechanism is provided inside the inner square tube, and a balance valve device is connected to the bottom of the hydraulic mechanism.

[0006] Preferably, an outer square tube is fitted around the inner square tube, and both the inner and outer square tubes are made of metal.

[0007] Preferably, the fixing component includes a fixing plate, a mounting hole, and a spiral rod. The fixing plate is provided on the top of the inner square tube, the mounting hole is provided on the top of the fixing plate, and the spiral rod is connected through the top of the outer square tube.

[0008] Preferably, the support assembly includes a side plate, a fixing socket, and a bottom plate. The lower outer side of the inner square tube is provided with a side plate, and the two ends of the side plate are provided with fixing sockets that penetrate into the interior of the inner square tube. The bottom of the inner square tube is installed with a bottom plate.

[0009] Preferably, the hydraulic mechanism includes a lower pressure port, a valve, an upper pressure port, a connecting port, a control valve, a rotating vane, a sealing ring, and a piston. The lower pressure port is provided inside the inner square tube, a valve is provided above the lower pressure port, the top of the valve is connected to the upper pressure port, a connecting port is provided at one end of the upper pressure port, a control valve is connected inside the upper pressure port, a rotating vane is provided outside the control valve, a sealing ring is provided outside the lower pressure port, and a piston is provided inside the sealing ring.

[0010] Preferably, the balancing valve device includes a flow port, a valve plate, a valve core, a spring, a pressure regulating knob, and a pressure relief port. The bottom of the inner square tube is connected to the flow port, the valve plate is disposed inside the flow port, the valve core is installed at the bottom of the valve plate, the spring is disposed at the bottom of the valve core, the pressure regulating knob is disposed on the left side of the valve core, and the pressure regulating knob is connected to the inner side of the pressure regulating knob.

[0011] Preferably, the flow port and the pressure relief port are connected through each other, and the valve core forms a pressure relief structure with the pressure relief port through a spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention allows for precise control of the pressure applied to the waterproof cotton curtain material during hydraulic jack operation, through the adjustment of the hydraulic mechanism and control valves. This means the device can adjust the applied pressure according to different material requirements, ensuring optimal pressing effect without damaging the material. The screw system in the fixing assembly helps to evenly transmit force to the hydraulic jack, avoiding local overpressure or uneven pressing, ensuring uniform pressing of the waterproof cotton curtain material, resulting in more stable and consistent final product quality. The balance valve device (including valve core and spring mechanism) effectively prevents damage to the hydraulic system due to excessive pressure. When the pressure in the system exceeds the safe value, the valve core is pushed by the spring, automatically releasing the pressure, thereby protecting the safety and durability of the entire system. This mechanism prevents overload and extends the equipment's lifespan. The base and side plates of the support components provide strong support, ensuring the hydraulic jack remains stable during operation. This not only increases the device's pressure resistance but also ensures the jack acts stably on the pressing material, avoiding errors or adverse effects during the pressing process due to instability. The hydraulic system design makes the entire working process efficient and stable. By controlling the coordination of valves, vanes, and other components, the hydraulic oil flow can be precisely controlled according to actual needs. This reduces downtime and resource waste in production, improving production efficiency. Because the applied pressure is adjustable and uniform, the pressing of the waterproof cotton curtain material is more uniform, avoiding uneven stretching or compression of the material, thereby improving the overall quality, appearance, and durability of the curtain. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the planar structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal hydraulic structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the internal planar structure of the balance valve of this utility model.

[0018] In the diagram: 1. Inner square tube; 2. Outer square tube; 3. Fixing assembly; 301. Fixing plate; 302. Mounting hole; 303. Helical rod; 4. Support assembly; 401. Side plate; 402. Fixing socket; 403. Base plate; 5. Hydraulic mechanism; 501. Lower pressure port; 502. Valve; 503. Upper pressure port; 504. Connection port; 505. Control valve; 506. Rotating vane; 507. Sealing ring; 508. Piston; 6. Balance valve device; 601. Flow port; 602. Valve plate; 603. Valve core; 604. Spring; 605. Pressure adjustment knob; 606. Pressure relief port. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model provides a multi-layer fabric pressing device for producing waterproof cotton door curtains, including an inner square tube 1 and a balance valve device 6. An outer square tube 2 is provided on the outside of the inner square tube 1. A fixing component 3 is provided on the top of the inner square tube 1. A support component 4 is provided on the bottom of the inner square tube 1. A hydraulic mechanism 5 is provided inside the inner square tube 1. The balance valve device 6 is connected to the bottom of the hydraulic mechanism 5.

[0022] An outer square tube 2 is fitted around the outer side of the inner square tube 1. Both the inner square tube 1 and the outer square tube 2 are made of metal, which increases the load-bearing capacity of the jack.

[0023] The fixing component 3 includes a fixing plate 301, a mounting hole 302, and a screw rod 303. The fixing plate 301 is provided on the top of the inner square tube 1, and the mounting hole 302 is opened above the fixing plate 301. The screw rod 303 is connected through the top of the outer square tube 2. The screw rod 303 is a structure of the fixing plate 301 and the top of the jack, used to transmit load and provide support, and to transmit force to the inside of the jack when loading.

[0024] The support assembly 4 includes a side plate 401, a fixing socket 402, and a base plate 403. The side plate 401 is provided on the lower outer side of the inner square tube 1. The fixing sockets 402 are provided at both ends of the side plate 401 and penetrate into the interior of the inner square tube 1. The base plate 403 is installed at the bottom of the inner square tube 1 for fixing the support of the jack and has pressure resistance and stability.

[0025] The hydraulic mechanism 5 includes a lower pressure port 501, a valve 502, an upper pressure port 503, a connecting port 504, a control valve 505, a rotating vane 506, a sealing ring 507, and a piston 508. The lower pressure port 501 is provided inside the inner square tube 1. The valve 502 is provided above the lower pressure port 501. The top of the valve 502 is connected to the upper pressure port 503. One end of the upper pressure port 503 is provided with a connecting port 504. The control valve 505 is connected inside the upper pressure port 503. The rotating vane 506 is provided outside the control valve 505. The sealing ring 507 is provided outside the lower pressure port 501. The piston 508 is provided inside the sealing ring 507. The pressure balance of the system is achieved by controlling the flow of gravity.

[0026] The balance valve device 6 includes a flow port 601, a valve plate 602, a valve core 603, a spring 604, a pressure regulating knob 605, and a pressure relief port 606. The bottom of the inner square tube 1 is connected to the flow port 601. The valve plate 602 is arranged inside the flow port 601. The valve core 603 is installed at the bottom of the valve plate 602. The spring 604 is arranged at the bottom of the valve core 603. The pressure regulating knob 605 is arranged on the left side of the valve core 603. The pressure relief port 606 is connected inside the pressure regulating knob 605. When the top of the hydraulic jack is loaded and generates pressure, the pressure will be transmitted to the inside of the balance valve device 6.

[0027] The flow port 601 and the pressure relief port 606 are connected through each other. The valve core 603 forms a pressure relief structure with the pressure relief port 606 through the spring 604. By adjusting the position of the valve core 603, the area of ​​gravity flowing through the valve body channel can be increased or decreased, thereby controlling the magnitude of gravity.

[0028] Working Principle: First, the waterproof cotton curtain material is placed in the pressing area of ​​the device. When the hydraulic system is started, the hydraulic mechanism 5 begins to work. Hydraulic oil enters the system through the lower pressure port 501, pushing the piston 508 and the valve 502. The valve 502 controls the flow of hydraulic oil through the upper pressure port 503, causing pressure accumulation. The pressure of the hydraulic system is transmitted to the control valve 505 through the connection port 504 of the upper pressure port 503, and the hydraulic oil flow is adjusted by the rotating plate 506. This process can adjust the pressure according to actual needs to ensure that appropriate pressing force is generated. During this process, the screw rod 303 in the fixing component 3 helps to evenly transmit the force to the jack (inside the hydraulic mechanism 5), ensuring the stability of the loading process. When the pressure in the system is too high, the balance valve device 6 plays an important role. The flow port 601 and the pressure relief port 606 are connected through each other. The valve core 603 will start to open under the action of the spring 604, thereby releasing the pressure. Adjusting the pressure adjustment knob 605 can adjust the position of the valve core 603, control the area of ​​the gravity channel flowing through the valve body, and thus control the pressure. This mechanism prevents the system from overloading due to excessive pressure. When appropriate pressure is applied to the material of the waterproof cotton curtain, the device begins the pressing operation. Because the hydraulic system can precisely control the applied pressure, the material of the waterproof cotton curtain is uniformly pressed and shaped. During the pressing process, the base plate 403 of the support component 4 provides stable support, ensuring that the jacks act stably on the pressing material.

[0029] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-layer fabric pressing device for producing waterproof cotton door curtains, comprising an inner square tube (1) and a balance valve device (6), characterized in that: An outer square tube (2) is provided on the outside of the inner square tube (1), a fixing component (3) is provided on the top of the inner square tube (1), a support component (4) is provided on the bottom of the inner square tube (1), a hydraulic mechanism (5) is provided inside the inner square tube (1), and a balance valve device (6) is provided at the bottom of the hydraulic mechanism (5).

2. The multi-layer fabric pressing device for producing waterproof cotton door curtains according to claim 1, characterized in that: The outer square tube (2) is sleeved on the outside of the inner square tube (1), and both the inner square tube (1) and the outer square tube (2) are made of metal.

3. The multi-layer fabric pressing device for producing waterproof cotton door curtains according to claim 1, characterized in that: The fixing component (3) includes a fixing plate (301), a mounting hole (302) and a screw rod (303). The fixing plate (301) is provided on the top of the inner square tube (1), and the mounting hole (302) is opened above the fixing plate (301). The screw rod (303) is connected through the top of the outer square tube (2).

4. The multi-layer fabric pressing device for producing waterproof cotton door curtains according to claim 1, characterized in that: The support assembly (4) includes a side plate (401), a fixing socket (402) and a bottom plate (403). The side plate (401) is provided on the lower outer side of the inner square tube (1). The fixing socket (402) is provided at both ends of the side plate (401) and penetrates into the interior of the inner square tube (1). The bottom plate (403) is installed at the bottom of the inner square tube (1).

5. A multi-layer fabric pressing device for producing waterproof cotton door curtains according to claim 3, characterized in that: The hydraulic mechanism (5) includes a lower pressure port (501), a valve (502), an upper pressure port (503), a connection port (504), a control valve (505), a rotating plate (506), a sealing ring (507), and a piston (508). The lower pressure port (501) is provided inside the inner square tube (1). A valve (502) is provided above the lower pressure port (501). The upper pressure port (503) is connected to the top of the valve (502). A connection port (504) is provided at one end of the upper pressure port (503). A control valve (505) is connected inside the upper pressure port (503). A rotating plate (506) is provided on the outside of the control valve (505). A sealing ring (507) is provided on the outside of the lower pressure port (501). A piston (508) is provided inside the sealing ring (507).

6. The multi-layer fabric pressing device for producing waterproof cotton door curtains according to claim 1, characterized in that: The balancing valve device (6) includes a flow port (601), a valve plate (602), a valve core (603), a spring (604), a pressure regulating knob (605), and a pressure relief port (606). The bottom of the inner square tube (1) is connected to the flow port (601). The valve plate (602) is provided on the inner side of the flow port (601). The valve core (603) is installed on the bottom of the valve plate (602). The spring (604) is provided on the bottom of the valve core (603). The pressure regulating knob (605) is provided on the left side of the valve core (603). The pressure regulating knob (605) is connected to the inner side of the pressure regulating knob (605) and the pressure relief port (606).

7. The multi-layer fabric pressing device for producing waterproof cotton door curtains according to claim 6, characterized in that: The flow port (601) and the pressure relief port (606) are connected through each other, and the valve core (603) forms a pressure relief structure with the pressure relief port (606) through the spring (604).