Air inlet end structure of vacuum-pumping system of cutting bed

Abstract

The utility model relates to an air inlet end structure of a vacuum-pumping system of a cutting bed, which comprises an air inlet pipe and an air inlet main chamber, the outlet end of the air inlet pipe is connected with the inlet end of an exhaust fan, the upper end of the air inlet main chamber is closed through a feeding end conveying belt, and an isolation plate is arranged in the air inlet main chamber and isolates an air inlet cavity in the air inlet main chamber. The air inlet pipe is provided with an air inlet cavity, the isolation plate is provided with isolation plate part filtering holes, the inlet end of the air inlet pipe is located in the air inlet cavity, the air inlet cavity is internally provided with a filtering cover connected with the inlet end of the air inlet pipe, the filtering cover is provided with filtering cover part filtering holes, the hole diameter of the filtering cover part filtering holes is smaller than that of the isolation plate part filtering holes, and the filtering cover is of a tubular structure. And one end of the filter cover is provided with an end cover, and the other end is connected with the inlet end of the air inlet pipe. The utility model provides the air inlet end structure of the vacuum-pumping system of the cutting bed, which not only can filter out small particles, but also can delay blockage, and solves the problem that environmental pollution is generated during air pumping of the cutting bed.

Description

Technical Field

[0001] This utility model relates to the field of fabric cutting technology, and in particular to an air inlet structure of a vacuum system for a cutting bed. Background Technology

[0002] In production and daily life, it is necessary to cut fluffy fabrics, which is done through a cutting table. In order to improve the cutting accuracy, a vacuum structure is set up to extract air from the fabric on the alignment conveyor belt, making the fabric more compact and improving the cutting accuracy. During vacuuming, the extracted air is discharged through an exhaust pipe. However, the current cutting table does not filter the air during vacuuming and adsorption, and the extracted cutting particles will be released into the air, causing air pollution. Utility Model Content

[0003] This invention provides an air inlet structure for a cutting bed vacuum system that can both filter out small particles and delay clogging, thus solving the problem of environmental pollution caused by air extraction during cutting bed operation.

[0004] The above technical problems are solved by the following technical solution: an air inlet structure for a cutting bed vacuum system, comprising an air inlet pipe whose outlet end is connected to the inlet end of a blower, characterized in that it further comprises an air inlet main chamber sealed at the upper end by a conveyor belt at the feeding end, wherein an isolation plate is provided in the air inlet main chamber, the isolation plate isolating an air inlet cavity within the air inlet main chamber, the isolation plate is provided with isolation plate filter holes, the inlet end of the air inlet pipe is located within the air inlet cavity, and a filter cover connected to the inlet end of the air inlet pipe is provided within the air inlet cavity, the filter cover is provided with filter cover filter holes, the aperture of the filter cover filter holes being smaller than the aperture of the filter holes in the isolation plate filter holes, the filter cover being a tubular structure, one end of the filter cover being provided with an end cap, and the other end being connected to the inlet end of the air inlet pipe. During use, the material fed into the feeding end is compressed by vacuuming. The vacuumed airflow flows through the main air inlet chamber, the air inlet cavity, and the filter cover before reaching the air inlet pipe. The chips generated during the cutting process are filtered and blocked by the filter holes of the isolation plate and the filter cover, thus preventing them from entering the exhaust fan and damaging the equipment and polluting the air.

[0005] Preferably, the wall of the air inlet cavity is provided with a filter cover removal hole, and the end cap is detachably connected to the filter cover removal hole to close it. The end cap has a positioning structure that extends into the filter cover to prevent the filter cover from moving radially relative to the end cap. When the filter cover needs cleaning, the end cap is detached from the filter cover removal hole, and then the filter cover is removed. This facilitates filter cover maintenance.

[0006] Preferably, the air inlet cavity is provided with a tubular section, one end of which forms the filter cover disassembly hole, and the filter cover is inserted inside the tubular section. This allows airflow to converge and enter the air inlet duct.

[0007] Preferably, the gap between the tubular section and the filter cover is less than 2 cm. This effectively blocks debris.

[0008] Preferably, the positioning structure includes a plurality of ribs extending radially along the circumference of the end cap, the outer end faces of the ribs being located on the same circle, and the radius of the circle containing the outer end faces of the ribs being less than 1 mm smaller than the inner radius of the filter cover. This design is simple and increases the strength of the end cap.

[0009] Preferably, the end cap has a positioning structure on one side surface, and a guide block aligning with the filter cover is also provided along the circumference of the end cap. The guide block has a guide slope at its inner end along the radial direction of the end cap. This facilitates alignment when assembling the end cap onto the filter cover.

[0010] Preferably, the inlet end of the air inlet duct is connected to two positioning strips, which are connected together in a cross shape and abut against the inner circumferential surface of the filter cover. This increases the structural strength of the filter cover and allows for zoned air intake, thereby increasing the anti-clogging effect.

[0011] Preferably, the end face of the positioning strip away from the inlet end of the air inlet pipe has chamfered ends. This makes it easier to fit the filter cover onto the positioning strip.

[0012] Preferably, the positioning plate is provided with a centering screw coaxial with the filter cover, which passes through the end cover and is threadedly connected to the pressing nut. This improves the ease of assembly. This invention has the following advantages: it provides two-stage filtration during cutting, effectively blocking particulate matter generated during the cutting process, thereby reducing air pollution; and it is less prone to clogging. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the air intake chamber when part of the wall of the air intake chamber is removed, thus opening the air intake chamber.

[0014] Figure 2 for Figure 1 A magnified view of a portion of point E;

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention with the bottom facing upwards.

[0016] Figure 4 This is a schematic diagram of the filter cover;

[0017] Figure 5 This diagram shows the inlet end of the air inlet duct after the filter cover has been removed. In the diagram: exhaust pipe 31, feeding conveyor belt 2, cutting blade 3, unloading conveyor belt 32, exhaust fan 33, main exhaust pipe 34, main air inlet chamber 35, air inlet duct 36, air inlet section 37, air outlet section 38, rib plate 39, outer end face of rib plate 40, guide block 41, guide slope 42, positioning strip 43, chamfered surface 44, centering screw 52, ​​isolation plate 45, air inlet cavity 46, filter hole in isolation plate section 47, filter cover 48, filter hole in filter cover section 49, end cap 50, tubular section 51. Detailed Implementation

[0018] 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.

[0019] See Figures 1 to 5 An air inlet structure for a vacuum system of a cutting bed is disclosed. The cutting bed includes a frame 1. The frame is equipped with a feeding conveyor belt 2, a discharging conveyor belt 32 connected to the discharging end of the feeding conveyor belt, a cutting blade 3 for cutting material covered with a film on the feeding conveyor belt, and an adsorption system for vacuuming the material on the feeding conveyor belt. The adsorption system includes an exhaust fan 33, an air inlet structure connected to the inlet end of the exhaust fan, and an exhaust manifold 34 connected to the outlet end of the exhaust fan. The exhaust fan is located below the frame.

[0020] The air inlet structure includes an air inlet chamber 35, which is enclosed at the top by a conveyor belt at the feeding end, and an air inlet pipe 36 connecting the air inlet chamber and the inlet end of the exhaust fan. The exhaust manifold includes an air inlet section 37 and an air outlet section 38, with the air outlet section extending from one end of the frame width direction to the other. The air inlet section is connected to the middle of the air outlet section, connecting the outlet end of the exhaust fan and the air outlet section. Both ends of the air outlet section can be detachably connected to an air outlet pipe cover or an exhaust pipe 31, with the air outlet pipe cover and exhaust pipe each connected to one end of the air outlet section, thus allowing the exhaust pipe to be selectively connected to one side of the frame width direction. An isolation plate 45 is provided in the main air intake chamber, which isolates an air intake cavity 46 within the main air intake chamber. The isolation plate has filter holes 47. The inlet end of the air intake pipe is located within the air intake cavity. A filter cover 48, connected to the inlet end of the air intake pipe, is located within the air intake cavity. The filter cover has filter holes 49, the diameter of which is smaller than the diameter of the filter holes in the isolation plate. The filter cover is a tubular structure, with an end cap 50 at one end and the other end connected to the inlet end of the air intake pipe. During use, the material fed at the feeding end is vacuumed and compressed. The vacuumed airflow flows sequentially through the main air intake chamber, the air intake cavity, and the filter cover before reaching the air intake pipe. During vacuuming, the chips generated during cutting by the cutting bed are filtered and blocked sequentially by the filter holes in the isolation plate and the filter holes in the filter cover, thus preventing them from entering the exhaust fan and damaging the equipment or polluting the air. The air inlet cavity has a filter cover removal hole on its wall, and the end cap is detachably connected to the filter cover removal hole to close it. The air inlet cavity has a tubular section 51, one end of which forms the filter cover removal hole, and the filter cover passes through the tubular section. The gap between the tubular section and the filter cover is less than 2 cm. The end cap has a positioning structure that extends into the filter cover to prevent the filter cover from moving radially relative to the end cap. The positioning structure includes several ribs 39 that extend radially along the circumference of the end cap, the outer end faces 40 of which are located on the same circle, and the radius of the circle containing the outer end faces of the ribs is less than 1 mm smaller than the inner radius of the filter cover. On the side surface of the end cap with the positioning structure, there is also a guide block 41 that guides the positioning structure and aligns with the filter cover, distributed circumferentially along the end cap. The guide block has a guide slope 42 at its inner end along the radial direction of the end cap. The inlet end of the air inlet duct is connected to two positioning strips 43, which are connected together in a cross shape and abut against the inner circumferential surface of the filter cover. The end face of the positioning plate strip away from the inlet end of the air inlet pipe has chamfered surfaces 44 at both ends. The positioning plate has a centering screw 52 coaxial with the filter cover, which passes through the end cover and is threaded together with the press nut.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air inlet structure for a cutting bed vacuum system, comprising an air inlet pipe whose outlet end is connected to the inlet end of an exhaust fan, characterized in that, It also includes an air inlet chamber that is closed at the top by a conveyor belt at the feeding end. An isolation plate is provided in the air inlet chamber, which isolates an air inlet cavity. The isolation plate has filter holes in the isolation plate section. The inlet end of the air inlet pipe is located in the air inlet cavity. A filter cover connected to the inlet end of the air inlet pipe is provided in the air inlet cavity. The filter cover has filter holes in the filter cover section. The diameter of the filter holes in the filter cover section is smaller than the diameter of the filter holes in the isolation plate section. The filter cover is a tubular structure. One end of the filter cover is provided with an end cap, and the other end is connected to the inlet end of the air inlet pipe.

2. The air inlet structure of the vacuum system for a cutting bed according to claim 1, characterized in that, The air inlet cavity has a filter cover removal hole on its wall. The end cap is detachably connected to the filter cover removal hole to close it. The end cap has a positioning structure that extends into the filter cover to prevent the filter cover from moving radially relative to the end cap.

3. The air inlet structure of the vacuum system for a cutting bed according to claim 2, characterized in that, The air inlet cavity is provided with a tubular section, one end of which forms the filter cover disassembly hole, and the filter cover is inserted inside the tubular section.

4. The air inlet structure of the vacuum system for a cutting bed according to claim 3, characterized in that, The gap between the tubular section and the filter cover is less than 2 centimeters.

5. The air inlet structure of a cutting bed vacuum system according to claim 2, 3, or 4, characterized in that, The positioning structure includes several ribs that extend radially along the circumference of the end cover. The outer end faces of the ribs are located on the same circle, and the radius of the circle containing the outer end faces of the ribs is less than 1 mm smaller than the inner radius of the filter cover.

6. The air inlet structure of a cutting bed vacuum system according to claim 2, 3, or 4, characterized in that, On one side surface of the end cap where the positioning structure is provided, there is also a guide block that is aligned with the filter cover and is distributed circumferentially along the end cap. The guide block has a guide slope at its inner end along the radial direction of the end cap.

7. The air inlet structure of a cutting bed vacuum system according to claim 1, 2, 3, or 4, characterized in that, The inlet end of the air inlet pipe is connected to two positioning strips, which are connected together in a cross shape and abut against the inner circumferential surface of the filter cover.

8. The air inlet structure of a cutting bed vacuum system according to claim 7, characterized in that, The two ends of the end face of the positioning strip away from the inlet end of the air inlet pipe are provided with chamfered surfaces.

9. The air inlet structure of a cutting bed vacuum system according to claim 7, characterized in that, The positioning plate is provided with a centering screw that is coaxial with the filter cover. The centering screw passes through the end cover and is threaded together with the pressing nut.

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