Air injection mechanism for steam pre-shrinking machine

Abstract

The utility model relates to the technical field of steam preshrinking machines, in particular to an air injection mechanism for a steam preshrinking machine, which comprises a preshrinking roller, two air inlet pipes are symmetrically mounted in the preshrinking roller, two adjusting components are symmetrically and movably arranged in the preshrinking roller, and air outlet components are fixedly mounted on the outer sides of the air inlet pipes. And the air outlet assembly comprises a plurality of air outlet pipes which are fixedly embedded in the outer side surface of the air inlet pipe at equal intervals. According to the utility model, the plurality of air outlet pipes are arranged in the preshrinking roller, so that steam is discharged from different positions in the preshrinking roller, and meanwhile, the air displacement of the air outlet pipes at different positions is controlled, so that the steam is uniformly discharged from the interior of the preshrinking roller, the difference between the wetting degree and the heating degree at the edge and the center of cloth is small, and the preshrinking uniformity of the cloth is improved; when narrower cloth is pre-shrunk, the baffle is moved to shield the air outlet holes, the air outlet range of the pre-shrinking roller is adjusted, air is discharged only at the cloth shielding position, and the steam utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of steam pre-condenser technology, specifically a jetting mechanism for a steam pre-condenser. Background Technology

[0002] A pre-shrinking machine, also known as an anti-shrinking machine, is a piece of equipment used for pre-shrinking and finishing fabrics. It is designed based on the principle of fiber thermal shrinkage. Due to the orientation of wool fiber scales, wool fibers will undergo shrinkage under certain conditions of temperature, humidity, and compression pressure. Excessive temperature or excessive compression pressure will cause severe dimensional shrinkage. Therefore, wool fabrics need to be pre-shrinked under tension-free conditions. A steam pre-shrinking machine is a device that performs pre-shrinking based on the condition of the fabric without pressure or stretching. A steam pre-shrinking machine includes a fabric feeding mechanism, a pre-shrinking mechanism (air jet mechanism), and a fabric take-up mechanism.

[0003] The announcement number is CN218175366U, which discloses "a steam jet device for a pre-shrinking machine to reduce weft shrinkage of denim fabric, including a steam generator and a pre-shrinking steam drum mechanism installed inside the pre-shrinking machine. The steam generator and the pre-shrinking steam drum mechanism are connected through a steam pipeline, and a transmission mechanism is movably installed at one end of the pre-shrinking steam drum mechanism. At the same time, a water receiving tray is fixedly installed at the bottom of the pre-shrinking steam drum mechanism. Meanwhile, the pre-shrinking steam drum mechanism includes a drum body, and a first drum end cover and a second drum end cover are respectively provided at both ends of the drum body."

[0004] There are still some drawbacks in its use. When air is introduced from both ends of the pre-shrinking roller, the air is first discharged from the end closest to the air inlet. The different levels of moisture and heating at the edge and center of the fabric can easily lead to different pre-shrinking states of the fabric. In addition, when pre-shrinking narrower fabrics, the air outlets near both ends of the pre-shrinking roller surface are not covered by the fabric, which will increase the amount of air discharged at that point. This makes it difficult for the steam at that point to directly humidify and heat the fabric, resulting in steam waste. Utility Model Content

[0005] The purpose of this invention is to provide a jetting mechanism for a steam pre-compressor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An injection mechanism for a steam pre-compressor, comprising:

[0008] A pre-shrinking roller, wherein two air inlet pipes are symmetrically installed inside the pre-shrinking roller, and a partition is fixedly installed on the outer surface of the air inlet pipe;

[0009] Two adjustment components are symmetrically and movable inside the pre-shrinking roller;

[0010] An exhaust assembly is fixedly installed on the outside of the intake pipe. The exhaust assembly includes multiple exhaust pipes that are fixedly embedded in the outer surface of the intake pipe at equal intervals. A valve seat is fixedly installed inside the exhaust pipe. A piston block is movably inserted into the valve seat. Multiple L-shaped rotating rods of different lengths are rotatably connected inside the intake pipe.

[0011] Furthermore, one end of each of the two air inlet pipes is fixedly connected to a flexible hose, and one end of the flexible hose is connected to a steam generator. Sealed bearings are fixedly installed at both ends inside the pre-shrinking roller. The air inlet pipe passes through the sealed bearing at the corresponding position and is fixedly connected to the inner ring of the sealed bearing.

[0012] Furthermore, a through groove is provided on one side surface of the partition, a rubber sheet is fixedly connected to the through groove on one side surface of the partition, a thread is provided at one end of the outer surface of the L-shaped rotating rod, a nut is fixedly installed on one end surface of the air intake pipe, the L-shaped rotating rod passes through the nut and is screwed into the nut.

[0013] Furthermore, a fixed frame is fixedly installed inside the air outlet pipe, and sliding rods are fixedly installed on both ends of the piston block. The sliding rods slide through the fixed frame at the corresponding positions, and a spring is movably sleeved on the outside of the sliding rod between the piston block and the fixed frame.

[0014] Furthermore, multiple support frames are fixedly installed inside the air intake pipe, the L-shaped rotating rod passes through the support frame and is rotatably connected to the support frame, and an incomplete elliptical plate is fixedly installed at the other end of the L-shaped rotating rod.

[0015] Furthermore, the adjustment component includes:

[0016] Multiple baffles slide and adhere to the inner surface of the pre-shrinking roller;

[0017] Multiple tie rods are fixedly installed on the inner surface of multiple baffles.

[0018] Preferably, the pull rod slides through one end surface of the pre-shrinking roller, and a threaded ring is fixedly installed at one end of the pull rod, with a bolt screwed into the threaded ring.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By rotating the L-shaped rotating rod, the sliding rod on the surface of the incomplete elliptical plate slides inside the fixed frame, driving the piston block to move and adjusting the distance between it and the valve seat. This adjusts the space for water vapor to pass through, thereby allowing steam to be discharged from different positions inside the pre-shrinking roller by setting multiple air outlet pipes inside the pre-shrinking roller. At the same time, controlling the exhaust volume of the air outlet pipes at different positions ensures that the steam is discharged evenly from inside the pre-shrinking roller, ensuring that the degree of wetting and heating at the edge and center of the fabric is not significantly different, thus improving the uniformity of fabric pre-shrinking.

[0021] 2. The through groove is used to adjust the passage of the component. Then, the rubber sheet seals the through groove to prevent water vapor from leaking out. The water vapor is discharged from the space between the two partitions, so that the water vapor only heats and humidifies the fabric passing through the surface of the pre-shrinking roller, reducing the waste caused by water vapor overflow.

[0022] 3. Pull the levers at different positions to move the baffles, which will block the air outlets of the pre-shrinking rollers at the corresponding positions. When pre-shrinking narrower fabrics, by moving the baffles to block the air outlets, the air outlet range of the pre-shrinking rollers can be adjusted, and air will only be released where the fabric blocks the pre-shrinking rollers, thus improving steam utilization. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the pre-shrinking roller in this utility model;

[0025] Figure 3 This is a schematic diagram of the disassembled structure of the adjustment component in this utility model;

[0026] Figure 4 This is a schematic diagram of the side cross-sectional structure of the pre-shrinking roller in this utility model;

[0027] Figure 5 This is a schematic diagram of the vertical cross-sectional structure of the air inlet pipe and air outlet assembly in this utility model.

[0028] In the diagram: 1. Pre-shrink roller; 101. Inlet pipe; 102. Partition plate; 103. Sealed bearing; 104. Hose; 105. Steam generator; 106. Rubber sheet; 107. Nut; 108. Through groove; 2. Adjustment assembly; 201. Baffle plate; 202. Tie rod; 203. Threaded ring; 204. Bolt; 3. Outlet assembly; 301. Outlet pipe; 302. Valve seat; 303. Fixing frame; 304. Slide rod; 305. Spring; 306. Support frame; 307. L-shaped rotating rod; 308. Incomplete elliptical plate; 309. Piston block. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-5In this embodiment of the invention, a jetting mechanism for a steam pre-compressor includes a pre-compressor roller 1. Two air inlet pipes 101 are symmetrically installed inside the pre-compressor roller 1. One end of each air inlet pipe 101 is fixedly connected to a flexible hose 104, and the other end of the flexible hose 104 is connected to a steam generator 105. The steam generator 105 generates steam, which enters the two air inlet pipes 101 through the flexible hose 104. Sealed bearings 103 are fixedly installed at both ends inside the pre-compressor roller 1. The air inlet pipes 101 pass through the corresponding sealed bearings 103 and are fixedly connected to the inner ring of the sealed bearings 103. The sealed bearing 103 causes the pre-shrinking roller 1 to rotate, while the air inlet pipe 101 remains fixed. A partition 102 is fixedly installed on the outer surface of the air inlet pipe 101. Two adjusting components 2 are symmetrically and movably arranged inside the pre-shrinking roller 1. The air outlet component 3 is fixedly installed on the outer side of the air inlet pipe 101. The air outlet component 3 includes multiple air outlet pipes 301 that are fixedly embedded at equal intervals on the outer surface of the air inlet pipe 101. A valve seat 302 is fixedly installed inside the air outlet pipe 301. A piston block 309 is movably inserted into the valve seat 302. Multiple L-shaped rotating rods 307 of different lengths are rotatably connected inside the air inlet pipe 101.

[0031] Specifically, after steam enters the air inlet pipe 101, it is discharged from multiple air outlet pipes 301. The air output of the air outlet pipe 301 is adjusted by the distance between the piston block 309 and the valve seat 302, so that the water vapor discharged from the air outlet pipe 301 at different positions is more uniform. The number of air outlet holes on the surface of the pre-shrinking roller 1 is adjusted by the adjusting component 2. Example 1

[0032] like Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, a through groove 108 is provided on one side surface of the partition 102, and a rubber sheet 106 is fixedly connected to the through groove 108 on one side surface of the partition 102. A thread is provided at one end of the outer surface of the L-shaped rotating rod 307, and a nut 107 is fixedly installed on one end surface of the air intake pipe 101. The L-shaped rotating rod 307 passes through the nut 107 and is screwed into the nut 107.

[0033] In this embodiment, the L-shaped rotating rod 307 and the nut 107 are screwed together, so that after the L-shaped rotating rod 307 rotates, the friction between the two makes it easier to fix. The through groove 108 is used to allow the adjusting component 2 to pass through when the pre-shrinking roller 1 drives the adjusting component 2 to rotate. Then, the through groove 108 is blocked by the rubber sheet 106 to prevent water vapor from leaking out. Water vapor is discharged from the space between the two partitions 102, so that the water vapor only heats and humidifies the fabric passing over the surface of the pre-shrinking roller 1, reducing the waste caused by water vapor overflow.

[0034] like Figure 2 and Figure 5As shown, in this embodiment, a fixed bracket 303 is fixedly installed inside the air outlet pipe 301, and a sliding rod 304 is fixedly installed on both ends of the piston block 309. The sliding rod 304 slides through the fixed bracket 303 at the corresponding position, and a spring 305 is movably sleeved on the outside of the sliding rod 304 between the piston block 309 and the fixed bracket 303. Multiple support brackets 306 are fixedly installed inside the air inlet pipe 101, and an L-shaped rotating rod 307 passes through the support bracket 306 and is rotatably connected to the support bracket 306. An incomplete elliptical plate 308 is fixedly installed at the other end of the L-shaped rotating rod 307.

[0035] In practice, rotating the L-shaped rotating rod 307 causes the incomplete elliptical plate 308 to rotate, causing the surface of the incomplete elliptical plate 308 to push the sliding rod 304 to slide inside the fixed frame 303, which in turn moves the piston block 309. Adjusting the distance between the piston block 309 and the valve seat 302 adjusts the space for water vapor to pass through. By setting multiple air outlet pipes 301 inside the pre-shrinking roller 1, steam can be discharged from different positions inside the pre-shrinking roller 1. At the same time, controlling the exhaust volume of the air outlet pipes 301 at different positions ensures that steam is discharged evenly from inside the pre-shrinking roller 1, ensuring that the degree of wetting and heating at the edge and center of the fabric is not significantly different, thus improving the uniformity of fabric pre-shrinking. The spring 305 pushes the piston block 309, giving it a constant reset force. When the short end of the incomplete elliptical plate 308 contacts the sliding rod 304, the piston block 309 can move down and reset. Example 2

[0036] Based on Example 1, in order to compensate for the problem that water vapor leaks out from the uncovered pre-shrinking roller 1 when pre-shrinking shorter fabrics, resulting in water vapor waste.

[0037] like Figure 2 and Figure 3 As shown, in this embodiment, the adjustment component 2 includes: multiple baffles 201 slidingly attached to the inner surface of the pre-shrinking roller 1, and multiple pull rods 202 respectively fixedly installed on the inner surface of the multiple baffles 201; the pull rods 202 slide through one end surface of the pre-shrinking roller 1, and a threaded ring 203 is fixedly installed on one end of the pull rods 202, and a bolt 204 is screwed into the threaded ring 203.

[0038] In practice, pull the levers 202 at different positions to move the baffles 201, so that the baffles 201 block the air outlets of the pre-shrinking roller 1 at the corresponding positions. Then, tighten the bolts 204 to press against the pre-shrinking roller 1 and fix the levers 202. Thus, when pre-shrinking narrower fabrics, by moving the baffles 201 to block the air outlets, the air outlet range of the pre-shrinking roller 1 is adjusted, and air is only released where the fabric blocks the pre-shrinking roller 1, thereby improving the steam utilization rate.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention 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 invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A jetting mechanism for a steam pre-compressor, characterized in that, include: The pre-shrinking roller (1) has two air inlet pipes (101) symmetrically installed inside it, and a partition plate (102) is fixedly installed on the outer surface of the air inlet pipe (101). Two adjustment components (2) are symmetrically and movable inside the pre-shrinking roller (1); An exhaust assembly (3) is fixedly installed on the outside of the intake pipe (101). The exhaust assembly (3) includes multiple exhaust pipes (301) that are fixedly embedded on the outer surface of the intake pipe (101) at equal intervals. A valve seat (302) is fixedly installed inside the exhaust pipe (301). A piston block (309) is movably inserted into the valve seat (302). Multiple L-shaped rotating rods (307) of different lengths are rotatably connected inside the intake pipe (101).

2. The jetting mechanism for a steam pre-compressor according to claim 1, characterized in that, Two air inlet pipes (101) are fixedly connected to a hose (104) at one end, and a steam generator (105) is connected to one end of the hose (104). Sealed bearings (103) are fixedly installed at both ends inside the pre-shrinking roller (1). The air inlet pipe (101) passes through the sealed bearing (103) at the corresponding position and is fixedly connected to the inner ring of the sealed bearing (103).

3. The jetting mechanism for a steam pre-compressor according to claim 1, characterized in that, A through groove (108) is provided on one side surface of the partition (102). A rubber sheet (106) is fixedly connected to one side surface of the partition (102) at the through groove (108). A thread is provided at one end of the outer surface of the L-shaped rotating rod (307). A nut (107) is fixedly installed on one end surface of the air intake pipe (101). The L-shaped rotating rod (307) passes through the nut (107) and is screwed into the nut (107).

4. The jetting mechanism for a steam pre-compressor according to claim 1, characterized in that, A fixed bracket (303) is fixedly installed inside the air outlet pipe (301). Slide rods (304) are fixedly installed on both ends of the piston block (309). The slide rods (304) slide through the fixed brackets (303) at the corresponding positions. A spring (305) is movably sleeved on the outside of the slide rods (304) between the piston block (309) and the fixed brackets (303).

5. The jetting mechanism for a steam pre-compressor according to claim 1, characterized in that, Multiple support frames (306) are fixedly installed inside the air intake pipe (101). The L-shaped rotating rod (307) passes through the support frame (306) and is rotatably connected to the support frame (306). An incomplete elliptical plate (308) is fixedly installed at the other end of the L-shaped rotating rod (307).

6. The jetting mechanism for a steam pre-compressor according to claim 1, characterized in that, The adjustment component (2) includes: Multiple baffles (201) slide against the inner surface of the pre-shrink roller (1); Multiple tie rods (202) are fixedly installed on the inner surface of multiple baffles (201).

7. The jetting mechanism for a steam pre-compressor according to claim 6, characterized in that, The pull rod (202) slides through one end surface of the pre-shrinking roller (1), and a threaded ring (203) is fixedly installed at one end of the pull rod (202), and a bolt (204) is screwed into the threaded ring (203).

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