Cutting bed for noise insulation arrangement of fan

Abstract

The utility model relates to a draught fan noise insulation arrangement cutting bed which comprises a machine frame, the machine frame is provided with a feeding conveying belt, a discharging conveying belt in butt joint with the discharging end of the feeding conveying belt, a cutting knife used for cutting materials covered with films on the feeding conveying belt, and an adsorption system used for vacuumizing the materials on the feeding conveying belt. The adsorption system comprises an exhaust fan, an air inlet structure connected to the inlet end of the exhaust fan and an exhaust manifold connected to the outlet end of the exhaust fan, and the air inlet structure comprises an air inlet main chamber with the upper end closed through a feeding end conveying belt and an air inlet pipe communicating with the air inlet main chamber and the inlet end of the exhaust fan. The rack is provided with a draught fan installation cavity located below the discharging conveying belt, the exhaust fan is installed in the draught fan installation cavity, and an installation cavity part sound insulation layer is arranged on the wall of the draught fan installation cavity. According to the cutting bed with the draught fan arranged in the noise isolation mode, noise generated by the draught fan to the environment is small, and the problem that noise generated by an air draft airplane of an existing cutting bed seriously pollutes the environment is solved.

Description

Technical Field

[0001] This utility model relates to the field of fabric cutting technology, and in particular to a cutting bed with a fan noise insulation arrangement. 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. The existing cutting table's vacuum suction fan is directly exposed on the frame, which has the disadvantage of being noisy. Utility Model Content

[0003] This invention provides a cutting bed with a fan noise-insulating arrangement that minimizes the noise generated by the fan, thus solving the problem of significant environmental pollution caused by the noise generated by the exhaust fan of existing cutting beds.

[0004] The above technical problems are solved by the following technical solution: a cutting bed with a fan noise reduction arrangement, including a frame, characterized in that the frame is provided with a feeding conveyor belt, a discharging conveyor belt connected to the discharging end of the feeding conveyor belt, a cutting blade for cutting the 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, an air intake structure connected to the inlet end of the exhaust fan, and an exhaust manifold connected to the outlet end of the exhaust fan. The air intake structure includes an air intake chamber closed at its upper end by the feeding conveyor belt and an air intake pipe connecting the air intake chamber and the inlet end of the exhaust fan. The frame is provided with a fan mounting cavity located below the discharging conveyor belt, and the exhaust fan is installed in the fan mounting cavity. The wall of the fan mounting cavity is provided with a sound insulation layer for the mounting cavity. This reduces environmental noise during use.

[0005] Preferably, the fan mounting cavity is a sealed structure, and a vent pipe connecting the fan mounting cavity to the outside of the fan mounting cavity is installed through the fan mounting cavity. The length of the vent pipe extending into the fan mounting cavity is more than 30 cm, and the portion of the vent pipe inside the fan mounting cavity is provided with a sound insulation layer. This can further reduce the noise generated during equipment use.

[0006] Preferably, the system includes an exhaust pipe head and a muffler pipe connected to the end of the exhaust manifold. The end face of the exhaust pipe head is connected to several positioning strips distributed circumferentially around the pipe head. These positioning strips enclose the installation space for the muffler pipe, with limiting gaps formed between adjacent positioning strips. The outer circumferential surface of the muffler pipe is provided with several limiting protrusions. The muffler pipe is pluggably inserted into the muffler pipe installation space, with its end face supported on the end face of the pipe head where the positioning strips are located. The limiting protrusions are correspondingly inserted into the limiting gaps. In use, exhaust gas is discharged through the muffler pipe, thereby reducing noise. The muffler pipe is easy to install and remove; it can be pulled out by gripping the limiting protrusions. It is convenient to use and does not cause excessive rotation.

[0007] Preferably, the limiting protrusion is an elongated strip extending along the extension direction of the muffler tube. This increases the strength of the muffler tube.

[0008] Preferably, a lifting gap is provided between the limiting protrusion and the end face of the tube head with the positioning strip. This further facilitates the pulling out of the silencer tube.

[0009] Preferably, the muffler pipe includes a muffler end ring, a muffler outer tube, and a muffler inner tube passing through the muffler outer tube. A muffler filling channel is formed between the muffler outer tube and the muffler inner tube. The muffler filling channel is filled with muffler suction cotton. The muffler inner tube has several muffler mesh holes. There are two muffler end rings, which are correspondingly sealed at both ends of the muffler filling channel. This provides a specific structure for the muffler pipe.

[0010] Preferably, the inner diameter of the inner tube of the muffler section is smaller than the inner diameter of the end of the tube head with the positioning strip. This improves the effect of sound entering the filling channel of the muffler section, resulting in better noise reduction.

[0011] Preferably, the outer circumferential surface of the inner tube of the muffler section is provided with a plurality of muffler section reflective rings distributed along the extending direction of the inner tube. The muffler section reflective rings extend circumferentially along the inner tube of the muffler section, and each reflective ring has a plurality of inner tube muffler section reflective ring sound transmission holes, which penetrate the reflective rings. This increases the noise rebound area and improves the noise reduction effect.

[0012] Preferably, both end faces of the muffler's reflector ring are conical surfaces, with one end larger than the other facing the inlet of the muffler's inner tube. This results in better noise reduction.

[0013] The present invention has the following beneficial effects: the noise generated by the fan has a small impact on the environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the bottom wall of the blower installation cavity and the bottom wall of the air inlet chamber located below the material conveyor belt when the bottom wall of the blower installation cavity and the air inlet chamber are removed.

[0015] Figure 2 This is a three-dimensional structural diagram of the exhaust pipe;

[0016] Figure 3 This is a schematic diagram of the inner tube of the muffler section;

[0017] Figure 4 for Figure 3 A magnified view of a portion of point D.

[0018] In the diagram: 1. Frame; 2. Exhaust fan; 3. Main exhaust pipe; 8. Main air inlet chamber; 4. Air inlet pipe; 5. Fan mounting cavity; 6. Vent pipe; 9. Air inlet section; 10. Air outlet section; 31. Silencer pipe; 32. Air outlet pipe head; 33. Positioning strip; 34. Limiting gap; 35. Limiting protrusion; 36. Handle gap; 37. Silencer end ring; 38. Silencer outer pipe; 39. Silencer inner pipe; 40. Silencer mesh; 41. Silencer reflector ring; 42. Inner pipe silencer reflector ring sound transmission hole; 51. Tube section. Detailed Implementation

[0019] 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.

[0020] See Figures 1 to 4A cutting bed with a fan noise reduction arrangement includes a frame 1. The frame is equipped with a feeding conveyor belt, a discharging conveyor belt connected to the discharging end of the feeding conveyor belt, a cutting blade for cutting the 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 2, an air intake structure connected to the inlet end of the exhaust fan, and an exhaust manifold 3 connected to the outlet end of the exhaust fan. The air intake structure includes an air intake chamber 8 whose upper end is closed by the feeding conveyor belt, and an air intake pipe 4 connecting the air intake chamber and the inlet end of the exhaust fan. The frame is provided with a fan mounting cavity 5 located below the discharging conveyor belt, and the exhaust fan is installed in the fan mounting cavity. The wall of the fan mounting cavity is provided with a sound insulation layer for the mounting cavity. The fan mounting cavity is a sealed structure. A vent pipe 6, connecting the fan mounting cavity to the outside, is installed inside the cavity. The length of the vent pipe extending into the fan mounting cavity is at least 30 cm. A sound insulation layer is installed on the portion of the vent pipe inside the fan mounting cavity. The exhaust manifold includes an inlet section 9 and an outlet section 10, extending from one end of the frame width direction to the other. The inlet section is connected to the middle of the outlet section, connecting the exhaust fan outlet end and the outlet section. Both ends of the outlet section can be detachably connected to an outlet pipe cover or an outlet pipe head 32. The outlet pipe cover and the exhaust pipe head are each connected to one end of the outlet section, allowing the exhaust pipe to be selectively connected to one side of the frame width direction. A silencer pipe 31 is connected to the outlet pipe head.

[0021] Several positioning strips 33, distributed circumferentially along the end face of the exhaust pipe, are connected to the end face of the exhaust pipe head. These positioning strips enclose the installation space of the muffler pipe, forming limiting gaps 34 between adjacent positioning strips. Several limiting protrusions 35 are provided on the outer circumferential surface of the muffler pipe, allowing the muffler pipe to be inserted and removed within the installation space. The end face of the muffler pipe is supported on the end face of the exhaust pipe head with the positioning strips. The limiting protrusions are correspondingly inserted into the limiting gaps. In use, exhaust gas is discharged through the muffler pipe, thereby reducing noise. The muffler pipe is easy to install and remove; simply grasp the limiting protrusions and pull it out. It is convenient to use and does not cause excessive rotation.

[0022] The limiting protrusion is an elongated strip extending along the direction of the muffler pipe. A handle gap 36 is provided between the limiting protrusion and the end face of the pipe head with the positioning strip. The muffler pipe includes a muffler end ring 37, a muffler outer tube 38, and a muffler inner tube 39 passing through the muffler outer tube. A muffler filling channel is formed between the muffler outer tube and the muffler inner tube, and the muffler filling channel is filled with muffler suction cotton. The muffler inner tube has several muffler mesh holes 40. There are two muffler end rings, which are correspondingly sealed at both ends of the muffler filling channel. The inner diameter of the muffler inner tube is smaller than the inner diameter of the outlet pipe head with the positioning strip. The outer circumferential surface of the inner tube of the muffler section is provided with a plurality of muffler section reflective rings 41 distributed along the extension direction of the inner tube of the muffler section. The muffler section reflective rings extend circumferentially along the inner tube of the muffler section, and a plurality of inner tube muffler section reflective ring sound transmission holes 42 are provided on the muffler section reflective rings, which pass through the muffler section reflective rings. Both end faces of the muffler section reflective rings are conical surfaces with one end larger than the other end facing the inlet of the inner tube of the muffler section.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 limitations, 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.

[0024] 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 alterations 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. A cutting bed with a fan noise insulation arrangement, comprising a frame, characterized in that, The frame is equipped with a feeding conveyor belt, a discharging conveyor belt connected to the discharging end of the feeding conveyor belt, a cutting blade for cutting the 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, an air intake structure connected to the inlet end of the exhaust fan, and an exhaust manifold connected to the outlet end of the exhaust fan. The air intake structure includes an air intake chamber sealed at the top by the feeding conveyor belt and an air intake pipe connecting the air intake chamber and the inlet end of the exhaust fan. The frame is provided with a fan mounting cavity located below the discharging conveyor belt, and the exhaust fan is installed in the fan mounting cavity. The wall of the fan mounting cavity is provided with a sound insulation layer for the mounting cavity.

2. The cutting bed with a fan noise insulation arrangement according to claim 1, characterized in that, The fan mounting cavity is a sealed structure. A vent pipe is installed through the fan mounting cavity to connect to the outside of the fan mounting cavity. The length of the vent pipe extending into the fan mounting cavity is more than 30 centimeters. The part of the vent pipe located in the fan mounting cavity is provided with a sound insulation layer.

3. A cutting bed with a fan noise insulation arrangement according to claim 1 or 2, characterized in that, The device includes an exhaust pipe head and a muffler pipe connected to the end of the exhaust manifold. Several positioning strips distributed circumferentially along the end face of the exhaust pipe head are connected to the end face of the exhaust pipe head. The positioning strips enclose the installation space of the muffler pipe, and a limiting gap is formed between adjacent positioning strips. Several limiting protrusions are provided on the outer circumferential surface of the muffler pipe. The muffler pipe can be inserted and inserted into the muffler pipe installation space. The end face of the muffler pipe is supported on the end face of the pipe head with the positioning strips. The limiting protrusions are inserted one-to-one into the limiting gaps.

4. The cutting bed with a fan noise insulation arrangement according to claim 3, characterized in that, The limiting protrusion is an elongated strip extending along the extension direction of the silencer pipe.

5. The cutting bed with a fan noise insulation arrangement according to claim 3, characterized in that, A handle gap is provided between the limiting protrusion and the end face of the tube head with the positioning strip.

6. A cutting bed with a fan noise insulation arrangement according to claim 3, characterized in that, The muffler tube includes a muffler end ring, a muffler outer tube, and a muffler inner tube passing through the muffler outer tube. A muffler filling channel is formed between the muffler outer tube and the muffler inner tube. The muffler filling channel is filled with muffler suction cotton. The muffler inner tube is provided with a plurality of muffler mesh holes. There are two muffler end rings, which are correspondingly sealed at both ends of the muffler filling channel.

7. A cutting bed with a fan noise insulation arrangement according to claim 6, characterized in that, The inner diameter of the inner tube of the muffler is smaller than the inner diameter of the end of the tube head with the positioning plate.

8. A cutting bed with a fan noise insulation arrangement according to claim 6, characterized in that, The outer circumferential surface of the inner tube of the muffler section is provided with a plurality of muffler section reflective rings distributed along the extension direction of the inner tube of the muffler section. The muffler section reflective rings extend circumferentially along the inner tube of the muffler section. The muffler section reflective rings are provided with a plurality of inner tube muffler section reflective ring sound transmission holes, and the inner tube muffler section reflective ring sound transmission holes penetrate the muffler section reflective rings.

9. A cutting bed with a fan noise insulation arrangement according to claim 8, characterized in that, Both end faces of the muffler section's reflector ring are conical surfaces, with one end larger than the other facing the inlet of the muffler section's inner tube.

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