Drying, transverse stretching and shaping all-in-one machine
By setting up a drying zone inside the air box and using chain clamps to hold the film, the problem of film shrinkage during the drying process was solved, thus improving the film's performance.
Patent Information
- Application Number
- CN202511167089.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2025-10-28
AI Technical Summary
Traditional stretch film production lines suffer from severe film shrinkage during the drying process, which affects film performance.
The drying unit is separate from the extraction unit. The drying zone and the chain track system are placed inside the wind box. The film is held and constrained by the chain clamps and is stretched and shaped laterally.
Transverse stretching and shaping ensures the film's processability and improves its performance.
Smart Images
Figure CN120840070A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of stretch film production line technology, and in particular to an integrated drying, transverse stretching and shaping machine. Background Technology
[0002] In traditional stretch film production lines, after the film is extracted by the extraction device, it is dried by the drying device (in order to prevent leakage and contamination of the extractant, the drying zone and the extraction device are in a sealed area). The film shrinks significantly, which seriously affects the film performance. Summary of the Invention
[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an integrated drying, transverse stretching and shaping machine, in which the drying device and the extraction device are separate, the drying zone and the chain track system are placed in the same air box, and the film is held and constrained by the chain clamp during the drying process, so that the film will not shrink due to heating during drying.
[0004] The technical solution of the present invention is as follows: A drying and transverse stretching and shaping integrated machine includes a sealed box, a wind box, and a chain track system; one end of the sealed box is connected to the outlet of the extraction device, and the other end is connected to the wind box; the chain clamps of the chain track system are connected in series and clamped on the track; the chain track system is arranged as a whole in the wind box, and the inlet sprocket of the chain track system is placed in the sealed box; the wind box consists of an inlet area, a drying area, a first neutral area, a preheating area, a stretching area, a heat setting area, a second neutral area, a cooling area, and an outlet area from the inlet to the outlet; after the film passes through the extraction device, before drying, it is clamped on the chain clamp at the inlet sprocket in the sealed box to constrain the film, and then dried in the drying area in the wind box, and then transversely stretched in the wind box.
[0005] All parts inside the sealed enclosure and the air box, including the inlet area, drying area, first neutral area, and second neutral area, are made of stainless steel. The sealed enclosure and the air box are equipped with a tight sealing structure.
[0006] The sealed enclosure has doors on both sides.
[0007] The beneficial effects of this invention are as follows: after extraction, the film is dried under chain clamp constraint and then stretched and shaped laterally, which ensures the processability of the film and improves its performance. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the drying, transverse stretching and shaping integrated machine of the present invention.
[0009] Among them: 1-Sealed box; 2-Blowbox; 3-Chain system; 4-Door. Detailed Implementation
[0010] like Figure 1As shown, the drying and transverse stretching and shaping integrated machine includes a sealed box 1, an air box 2, and a track system 3. One end of the sealed box 1 is connected to the outlet of the extraction device, and the other end of the sealed box 1 is connected to the air box 2. The chain clamps of the track system 3 are connected in series and clamped on the track. The entire track system 3 is arranged inside the air box 2, and the inlet sprocket of the track system 3 is arranged inside the sealed box 1.
[0011] The bellows 2 contains a drying zone. From inlet to outlet, the bellows 2 consists of an inlet zone, a drying zone, a first neutral zone, a preheating zone, a stretching zone, a heat-setting zone, a second neutral zone, a cooling zone, and an outlet zone. A sealed enclosure 1 seals the outlet of the extraction device and the bellows 2 to prevent extractant leakage. The inlet sprocket of the track system 3 is also located within the sealed enclosure to prevent extractant leakage. After passing through the extraction device, the membrane is clamped in a chain clamp at the inlet sprocket within the sealed enclosure, thus constraining the membrane. It then enters the drying zone within the bellows 2 for drying. After drying, the membrane undergoes transverse stretching.
[0012] All parts inside the sealed chamber and the inlet area, drying area, first neutral zone, and second neutral zone of the bellows are made of stainless steel to prevent the extractant attached to the membrane from corroding the track system. The drying area of bellows 2 is separated from other areas by a neutral zone to prevent extractant leakage. Sealed chamber 1 has doors 4 on both sides, allowing operators to enter and perform membrane threading operations on the transverse stretching machine.
[0013] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A drying, transverse stretching, and shaping integrated machine, characterized in that, The drying and transverse stretching and shaping integrated machine includes a sealed box (1), a wind box (2), and a chain track system (3); one end of the sealed box (1) is connected to the outlet of the extraction device, and the other end is connected to the wind box (2); the chain clamps of the chain track system (3) are connected in series on the track; the chain track system (3) is arranged as a whole in the wind box (2), and the inlet sprocket of the chain track system (3) is placed in the sealed box (1); the wind box (2) is arranged from the inlet to the outlet as an inlet area, a drying area, a first neutral area, a preheating area, a stretching area, a heat setting area, a second neutral area, a cooling area, and an outlet area; after the film passes through the extraction device, before drying, it is clamped on the chain clamp at the inlet sprocket in the sealed box (1) to constrain the film, then dried in the drying area in the wind box (2), and then stretched transversely in the wind box (2).
2. The drying, transverse stretching, and shaping integrated machine according to claim 1, characterized in that, All parts in the sealed box (1) and the inlet area, drying area, first neutral area and second neutral area of the air box (3) are made of stainless steel. The sealed box (1) and the air box (3) are equipped with a tight sealing structure.
3. The drying, transverse stretching, and shaping integrated machine according to claim 1, characterized in that, The sealed box (1) has doors on both sides.