Knife-blade plastic-coated cloth pre-drying device added with softening agent

By introducing a limiting mechanism and a lifting slider structure into the pre-drying device for knife-coated plastic fabric, the problem of low drying efficiency of knife-coated plastic fabric in the prior art is solved, and the fabric can be quickly replaced and dried efficiently.

CN224127734UActive Publication Date: 2026-04-17FEI CHENG SHI TAI SHAN TU SU FAN BU YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FEI CHENG SHI TAI SHAN TU SU FAN BU YOU XIAN GONG SI
Filing Date
2025-05-13
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The drying efficiency of the existing knife-coated plastic cloth is low, especially in batch operations where it is difficult to quickly change the cloth to be dried, and the fixed air drying method cannot effectively increase the contact area between the dryer and the cloth.

Method used

A pre-drying device for knife-coated plastic fabric with added softener was designed. It adopts a limiting mechanism and lifting slider structure in the machine box, and achieves efficient drying of the fabric by cooperating with the V-shaped fabric structure and the liftable dryer.

Benefits of technology

It improves drying efficiency, increases the contact area between the dryer and the fabric, and enables rapid fabric replacement and efficient drying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic-coated cloth drying, in particular to a knife-blade plastic-coated cloth pre-drying device added with softening agents, which comprises a case, limiting mechanisms used for fixedly mounting cloth rollers are arranged on the left side and the right side of the case, and a lifting sliding block is slidably mounted in the case. A tensioning roller used for pressing the cloth downwards is rotationally installed on the lifting sliding block, and the cloth passes through the machine box through the two cloth rollers and the tensioning roller in a V-shaped joint mode. The two groups of material passing notches and the accommodating cavities are symmetrically formed in the case with the opening in the top end, and the end part of the cloth roller is locked and fixed by the wedge elastic plug-in which can move up and down, so that the cloth roller is conveniently disassembled, assembled and replaced; the lifting tensioning roller is arranged at the middle end of the machine box so that cloth passing through the machine box can be of a V-shaped structure, the lifting dryer is arranged in the middle of the machine box so that large-range contact with the cloth of the V-shaped structure can be conveniently achieved, and therefore the drying efficiency and the drying level are improved.
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Description

Technical Field

[0001] This utility model relates to the field of coated fabric drying technology, and in particular to a pre-drying device for coated fabric with added softener. Background Technology

[0002] Knife-coated PVC tarpaulin, also known as knife-coated fabric or high-strength PVC tarpaulin, is a chemically synthesized material with wide applications in production and daily life. To make its structure flexible and adaptable to diverse usage needs, softeners are often added under current conditions. However, to reduce the inconvenience caused by softeners in the use of knife-coated PVC tarpaulin, a heater is used to dry it.

[0003] Existing drying methods, such as the plastic woven bag coating device disclosed in CN222241090U, employ two hot air hoods arranged vertically inside the drying chamber. When the plastic woven bag material is coated, the hot air fan is activated, directing hot air through the air ducts into the two hot air pipes, allowing the two hot air hoods to simultaneously dry the plastic woven bag material passing through the drying chamber on both sides. However, knife-coated plastic fabrics have a soft structure, especially when using rollers to achieve long packaging structures. The fixed air-drying method described above is insufficient for quickly drying the heavily rolled knife-coated plastic fabric. The contact between the dryer and the knife-coated plastic fabric is extremely limited, severely restricting the area that the dryer can radiate, resulting in extremely low drying efficiency. This is particularly problematic during batch operations, where it is difficult to quickly change the knife-coated plastic fabric to be dried. Utility Model Content

[0004] The purpose of this invention is to solve the problem of low drying efficiency of knife-coated plastic fabric in the prior art, and to propose a knife-coated plastic fabric pre-drying device with added softener.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pre-drying device for knife-coated plastic fabric with added softener includes a housing. Limiting mechanisms for fixing and installing fabric rollers are provided on the left and right sides of the housing. A lifting slider is slidably installed inside the housing. A tension roller for pressing the fabric downward is rotatably installed on the lifting slider. The fabric passes through the housing via two fabric rollers and the tension roller with a V-joint. A lifting frame is slidably installed in the middle of the housing. A dryer for drying the fabric is provided on the lifting frame.

[0007] Preferably, the left and right side walls of the chassis are provided with interconnected material passages and receiving cavities.

[0008] Preferably, the cloth roller is installed at the feed trough opening, and the limiting mechanism is disposed in the receiving cavity.

[0009] Preferably, the limiting mechanism includes a drive slider slidably installed in the receiving cavity, a steering traction rod rotatably installed in the receiving cavity and movably pulled by the drive slider, a telescopic rod slidably installed in the receiving cavity and movably extended into the material passage and movably pulled by the steering traction rod, a threaded rod rotatably connected to the telescopic rod, a fitting block fixedly connected to the threaded rod, the fitting block having a fitting opening for fitting the end of the fabric roller, and symmetrically having storage cavities communicating with the fitting opening in the fitting block, a wedge mask threadedly connected to the threaded rod, and a wedge head elastic insert that movably abuts against the wedge mask in the storage cavity.

[0010] Preferably, a traction link is pin-connected between the drive slider and one end of the steering traction rod, and a traction long hole is opened at the other end of the steering traction rod, and a traction long bolt is integrally connected to the telescopic rod and slidably fitted in the traction long hole.

[0011] Preferably, the opening of the wedge mask has an active cutting surface, and the outer end of the wedge head elastic insert has a driven cutting surface parallel to the active cutting surface.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model utilizes a top-opening chassis with two symmetrically set material feed slots and receiving cavities. The material feed slots are used to set up fabric rollers for winding up the fabric, while the receiving cavities are used to set up a limiting mechanism for conveniently fixing the fabric rollers. The fabric roller ends are initially fitted with a modular block that can move back and forth, and then the fabric roller ends are locked and fixed with a wedge-shaped elastic insert that can move up and down, thereby realizing convenient disassembly, assembly and replacement of the fabric rollers.

[0014] 2. This utility model improves drying efficiency and quality by setting a liftable tension roller in the middle of the machine casing to make the fabric passing through the machine casing form a V-shaped structure, and setting a liftable dryer in the middle of the machine casing to achieve a large range of contact with the V-shaped fabric. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pre-drying device for knife-coated plastic fabric with added softener proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of a pre-drying device for a knife-coated plastic fabric with added softener, as proposed in this utility model.

[0017] Figure 3 A sectional view of the limiting mechanism of a pre-drying device for a knife-coated plastic fabric with added softener proposed in this utility model;

[0018] Figure 4This is an enlarged schematic diagram of part A of the pre-drying device for knife-coated plastic fabric with added softener proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the cloth roller structure.

[0020] In the picture:

[0021] 1. Chassis; 11. Feed chute; 12. Receiving cavity;

[0022] 2. Limiting mechanism; 21. Drive slider; 22. Steering traction rod; 23. Telescopic rod; 24. Traction link; 25. Threaded rod; 26. Set block; 27. Set opening; 28. Storage cavity; 29. ​​Wedge mask; 210. Wedge head elastic insert;

[0023] 3. Lifting slider; 4. Tensioning roller; 5. Lifting frame; 6. Dryer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-5 A pre-drying device for knife-coated fabric with added softener includes a housing 1. It should be noted that the relatively enclosed housing structure helps to reduce heat loss from the dryer 6, so that the unfolded fabric is always in a high-temperature environment.

[0026] The left and right sides of the casing 1 are equipped with limiting mechanisms 2 for fixing and installing the cloth rollers, as detailed in the instruction manual. Figure 3 With appendix Figure 4The limiting mechanism 2 includes a drive slider 21 slidably installed in the receiving cavity 12. A drive cylinder is provided on the housing 1 to drive the drive slider 21 to move vertically up and down. A steering traction rod 22, which is rotatably pulled by the drive slider 21, is rotatably installed in the receiving cavity 12. A telescopic rod 23, which extends movably into the material passage 11 and is rotatably pulled by the steering traction rod 22, is slidably installed in the receiving cavity 12. A threaded rod 25 is rotatably connected to the telescopic rod 23, and a mounting block 26 is fixedly connected to the threaded rod 25. The mounting block 26 has an opening... The fitting opening 27 is used to initially fit the end of the fabric roller. The fitting block 26 has symmetrically opened storage cavities 28 that connect to the fitting opening 27. A wedge mask 29 is threadedly connected to the threaded rod 25. A wedge head elastic insert 210 that moves against the wedge mask 29 is provided in the storage cavity 28. It should be noted that moving the wedge mask 29 along the threaded rod 25 can continuously apply pressure to the wedge head elastic insert 210, so that the wedge head elastic insert 210 extends into the fitting opening 27 until it touches the end of the fabric roller.

[0027] A lifting slider 3 is slidably installed inside the housing 1. A tension roller 4 for pressing the fabric downwards is rotatably installed on the lifting slider 3. The fabric passes through the housing 1 in a V-shape through the two fabric rollers and the tension roller 4. A lifting frame 5 is slidably installed in the middle of the housing 1. A dryer 6 for drying the fabric is set on the lifting frame 5. By adjusting the lifting slider 3 inside the housing 1, the height position of the dryer 6 inside the housing 1 corresponds to the V-shape of the fabric, so that the dryer 6 can radiate the fabric to the maximum extent, thereby ensuring drying efficiency.

[0028] The left and right side walls of the chassis 1 are provided with interconnected material passages 11 and receiving cavities 12.

[0029] The cloth roller is installed at the feed trough 11, and the limiting mechanism 2 is set in the receiving cavity 12. By quickly installing and removing the cloth roller at the feed trough 11, the cloth can be quickly replaced.

[0030] A traction link 24 is pin-connected between the drive slider 21 and one end of the steering traction rod 22. The other end of the steering traction rod 22 is provided with a traction long hole, and a traction long bolt that is slidably fitted into the traction long hole is integrally connected to the telescopic rod 23. During the deflection process, the steering traction rod 22 can drive the telescopic rod 23 to move horizontally, thereby driving the fitting block 26 to initially fit the end of the cloth roller.

[0031] Please refer to the instruction manual for details. Figure 4 The wedge mask 29 has an active cutting surface at the opening, and the outer end of the wedge head elastic plug 210 has a driven cutting surface parallel to the active cutting surface. The spiral push wedge mask 29 can continuously apply pressure to the wedge head elastic plug 210.

[0032] It should be noted that the chassis 1 is provided with a limiting groove structure for the linear reciprocating movement of the guide slider 21, the lifting slider 3 and the lifting frame 5, and each of the three is provided with a through hole for fixing the locking screw, so as to fix their own position.

[0033] It should be noted that the specific model and specifications of the cloth roller and dryer 6 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0034] The functional principle of this utility model can be explained through the following operation methods:

[0035] Fit the two ends of the cloth roller into the fitting opening 27;

[0036] The control drive slider 21 moves vertically downward. The drive slider 21 drives the steering traction rod 22 to deflect through the traction link 24. The steering traction rod 22 drives the telescopic rod 23 to extend into the material passage 11, thereby making the set block 26 more deeply set on the end of the cloth roller.

[0037] The threaded rod 25 is kept stationary on the telescopic rod 23, the wedge mask 29 is pushed to move spirally on the threaded rod 25, and pressure is applied to the wedge head elastic insert 210. The end of the cloth roller is locked and fixed by the wedge head elastic insert 210 extending into the sleeve opening 27.

[0038] The depth of the lifting slider 3 is fixed inside the housing 1 to fix the installation height of the tension roller 4;

[0039] This results in the fabric forming a V-shaped structure between the two fabric rollers and the tension roller 4;

[0040] Adjust the height of the lifting frame 5 on the housing 1 until the dryer 6 is positioned between the V-shaped structures of the fabric, and make the fabric move smoothly, thereby dynamically drying the fabric.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A knife-coating fabric-preheating device with added softener, comprising a cabinet (1), characterized in that, The machine housing (1) is provided with limiting mechanisms (2) for fixing and installing cloth rollers on the left and right sides, and a lifting slider (3) is slidably installed inside the machine housing (1). A tensioning roller (4) for pressing the cloth downward is rotatably installed on the lifting slider (3), and the cloth passes through the machine housing (1) through the two cloth rollers and the tensioning roller (4) with a V-shaped joint. A lifting frame (5) is slidably installed in the middle of the machine housing (1), and a dryer (6) for drying the cloth is provided on the lifting frame (5).

2. A softener-added knife-coating and pre-baking apparatus for a plastic cloth according to claim 1, wherein The left and right side walls of the chassis (1) are provided with a connected material passage (11) and a receiving cavity (12).

3. A softener-added knife-coating and fabric-preheating apparatus according to claim 2, wherein The cloth roller is installed at the feed trough (11) and the limiting mechanism (2) is set in the receiving cavity (12).

4. A softener-added knife-coating and fabric-preheating apparatus according to claim 3, wherein The limiting mechanism (2) includes a drive slider (21) slidably installed in the receiving cavity (12), a steering traction rod (22) rotatably installed in the receiving cavity (12) and movably pulled by the drive slider (21), a telescopic rod (23) slidably installed in the receiving cavity (12) and extending movably into the material passage (11) and movably pulled by the steering traction rod (22), a threaded rod (25) rotatably connected to the telescopic rod (23), a fitting block (26) fixedly connected to the threaded rod (25), a fitting opening (27) for fitting the end of the fabric roller is opened in the fitting block (26), and a receiving cavity (28) communicating with the fitting opening (27) is symmetrically opened in the fitting block (26), a wedge mask (29) is threadedly connected to the threaded rod (25), and a wedge head elastic insert (210) that moves against the wedge mask (29) is provided in the receiving cavity (28).

5. A softener-added knife-coating and fabric-preheating apparatus according to claim 4, wherein The drive slider (21) and one end of the steering traction rod (22) are connected by a pin to a traction link (24). The other end of the steering traction rod (22) is provided with a traction hole, and a traction bolt that is slidably fitted into the traction hole is integrally connected to the telescopic rod (23).

6. A softener added knife over roll prebake unit according to claim 4 wherein, The wedge mask (29) has an active cutting surface at the opening position, and the outer end of the wedge head elastic plug (210) has a driven cutting surface parallel to the active cutting surface.

Citation Information

Patent Citations

  • Plastic woven bag film coating device

    CN222241090U