Dust removal device and filling equipment

Abstract

The utility model provides a dust removal device and filling equipment, the dust removal device is used for carrying out dust removal on a packaging piece in transportation, the dust removal device comprises a dust removal cover, the dust removal cover comprises a cover opening formed in the first side of the dust removal cover, and the cover opening is arranged to face a packaging opening of the packaging piece; the air spraying pipe comprises a first part section with an air spraying outlet and a second part section with an air spraying inlet, the first part section extends into the dust removal cover, the second part section is located on the outer side of the dust removal cover, and the first part section of the air spraying pipe comprises a bent part; the bent part is configured to enable the central axis of the air injection outlet of the first section of the air injection pipe to deviate relative to the central axis of the air injection inlet of the second section of the air injection pipe. According to the dust removal device and the filling equipment, the dust removal efficiency is high, and the applicability is wide.

Description

Technical Field

[0001] This utility model relates to the field of filling equipment, and more specifically, to a dust removal device with improvements on the jet pipe and a filling equipment including the dust removal device. Background Technology

[0002] This section provides background information related to the present invention, which does not necessarily constitute prior art.

[0003] As a crucial component of filling equipment, especially aseptic filling machines, dust removal devices primarily function to reduce the paper dust load within packaging (such as cardboard boxes), thereby minimizing the risk of bacterial and microbial contamination. Typically, dust removal devices consist of an air jet pipe and a dust hood. The air jet pipe sprays a suitable amount of high-pressure air towards the packaging, thus lifting or blowing away paper scraps and dust from within the packaging. The dust hood creates negative pressure to collect paper scraps and dust, preventing them from scattering into the equipment outside the packaging and thus preventing secondary contamination from the paper scraps and dust blown out of the packaging.

[0004] The present invention aims to provide a dust removal device with an optimized structure, which in particular can achieve a better dust removal effect without affecting the main structural design of the filling equipment, and has wide applicability and manufacturing cost-effectiveness. Utility Model Content

[0005] This section provides a general summary of the present invention, rather than a full disclosure of the complete scope or all features of the present invention.

[0006] One objective of this invention is to provide a dust removal device having a bent jet pipe, such that the jet outlet of the jet pipe can be offset toward the side wall of the package to an appropriate position (in particular, it can be offset to an appropriate position for a series of packages of different sizes), thereby making it easier for paper scraps and dust inside the package to be lifted by compressed air and carried away from the package, achieving a better dust removal effect.

[0007] Another objective of this invention is to provide a dust removal device in which the opening area of ​​the dust removal hood is within a specific range of the opening area of ​​the packaging, thereby achieving a better dust removal effect.

[0008] Another objective of this invention is to provide a filling device, which, in particular, has a simple structure, wide applicability, and cost-effective manufacturing process for its dust removal device.

[0009] According to one aspect of the present invention, a dust removal device is provided for removing dust from packaged goods during transport. The dust removal device includes: a dust removal hood, the dust removal hood including a hood opening disposed on a first side of the dust removal hood, the hood opening being configured to face the packaged goods; and a jet pipe, the jet pipe including a first section having a jet outlet and a second section having a jet inlet, the first section extending into the dust removal hood, the second section being located outside the dust removal hood, wherein the first section of the jet pipe includes a bend, the bend being configured such that the central axis of the jet outlet of the first section of the jet pipe is offset relative to the central axis of the jet inlet of the second section of the jet pipe.

[0010] In some embodiments, the packaging opening is rectangular, with the short side of the packaging opening parallel to the transport direction of the package, and the center of the jet outlet is configured to be offset away from the center of the hood opening towards one of the short sides of the packaging opening.

[0011] In some implementations, the distance between the center of the jet outlet and one of the short sides is in the range of 4 mm to 6 mm.

[0012] In some embodiments, the distance between the center of the jet outlet and the projection of the center of the hood opening onto the plane where the packaging opening is located, in a direction perpendicular to the transport direction of the package, is in the range of 18 mm to 20 mm.

[0013] In some embodiments, the bend is configured such that the center of the jet outlet is offset further away from the center of the shroud opening than the center of the jet inlet.

[0014] In some embodiments, the bend is configured to consist of a straight section or a curved section.

[0015] In some embodiments, the bend is formed by bending the jet pipe multiple times, so that the central axes of both the jet inlet and the jet outlet are perpendicular to the plane where the packaging opening is located.

[0016] In some implementations, the bend is formed by bending the jet pipe twice.

[0017] In some embodiments, the end of the jet pipe with the jet outlet does not extend beyond the lower edge of the defined opening of the dust hood.

[0018] In some embodiments, the dust hood includes a top wall portion disposed on a second side opposite to the first side of the dust hood, through which an air jet pipe passes so that a first section extends into the dust hood.

[0019] In some embodiments, the jet outlet is configured to jet an airflow toward the package in a direction perpendicular to the plane where the package opening is located, such that the airflow enters the package along the extension direction of the inner sidewall of the package, thereby creating a vortex within the package.

[0020] In some implementations, the area ratio of the cover opening to the packaging opening is 1:0.8.

[0021] In some embodiments, the dust removal device further includes an air delivery line for delivering compressed air, the air delivery line being connected to the air inlet of a second section of the jet pipe to enable the injection of compressed air into the package.

[0022] In some embodiments, the dust removal hood includes a top wall portion disposed on a second side opposite to the first side of the dust removal hood, the top wall portion forming an exhaust port penetrating the top wall portion, and the dust removal device further includes an exhaust duct connected to the exhaust port, so that impurities blown up by compressed air from the jet pipe inside the package can be extracted through the exhaust port and the exhaust duct.

[0023] According to another aspect of the present invention, a filling device is provided, which includes a dust removal device as described above.

[0024] Overall, the dust removal device and filling equipment according to this utility model can bring at least the following beneficial effects: The dust removal device according to this utility model improves the dust removal effect through the bending design of the air jet pipe and / or the specific size ratio design of the dust removal hood opening and the packaging opening. In addition, while achieving a better dust removal effect, the dust removal device and filling equipment according to this utility model do not affect the design and operating space of other components of the filling equipment, and can be easily adapted to different packaging sizes by simply modifying and adjusting the air jet pipe, thus having good applicability and manufacturing cost-effectiveness. Attached Figure Description

[0025] The foregoing and other features and characteristics of this utility model will become clearer from the following detailed description with reference to the accompanying drawings, which are by way of example only and are not necessarily drawn to scale. The same reference numerals are used in the drawings to indicate the same parts, in which:

[0026] Figure 1 This is a partial schematic perspective view of a filling device according to an exemplary embodiment of the present utility model;

[0027] Figure 2 This is a bottom view of the dust removal device of a filling equipment according to an exemplary embodiment of the present utility model;

[0028] Figure 3 This is a schematic projection of the jet inlet and jet outlet of the jet pipe of the dust removal device of the filling equipment according to an exemplary embodiment of the present invention on the plane where the packaging opening of the package is located.

[0029] Figure 4This is a front view of the jet pipe of the dust removal device of a filling apparatus according to an exemplary embodiment of the present invention; and

[0030] Figure 5 This is a compressed air flow field diagram of the dust removal area of ​​a filling device according to an exemplary embodiment of the present invention. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The following description is exemplary in nature and is not intended to limit the present invention or its application or use. In the various views, corresponding components or portions are given the same reference numerals.

[0032] Figure 1 A partial schematic perspective view of a filling apparatus 10 according to an exemplary embodiment of the present invention is shown. The filling apparatus 10 includes a transport device 200 for carrying and transporting packages 230, and a plurality of operating devices, such as a dust removal device 100, arranged along the travel path of the transport device 200. Specifically, the transport device 200 includes a row of chain assemblies 210 arranged along the transport direction of the transport device 200 and a drive assembly 220 for driving the row of chain assemblies 210 along the transport direction. Each row of chain assemblies 210 includes a plurality of chain assemblies 210 spaced apart from each other, and each chain assembly 210 may have a package 230 (e.g., a generally rectangular carton) arranged on it. The transport device 200 may also include multiple rows of chain assemblies 210 arranged parallel to each other in a direction perpendicular to the travel direction of the transport device 200. Figure 1 The diagram shows three columns of chain components, which improve the production efficiency of the equipment.

[0033] During the movement of the transport device 200 carrying the package 230, it will undergo different operations and treatments at various operating devices. For example, before sterilization and filling operations, the package 230 will first undergo dust removal treatment at the dust removal device 100 to reduce the load of impurities, such as paper scraps and dust, within the package 230. See specifically... Figure 1 The dust removal device 100 includes a dust removal hood 110 and an air jet pipe 120.

[0034] Dust hood 110 can be constructed in a general hood shape, for example Figure 1 The illustrated square-shaped hood, narrower at the top and wider at the bottom, includes a hood opening 114 on a first side of the dust hood 100, a top wall portion 117 on a second side of the dust hood 100 opposite to the first side, and a circumferential wall portion extending from the top wall portion 117 toward the first side of the dust hood 100 to define the hood opening 114. Figure 2As shown, the circumferential walls of the dust collector 110 include a front wall portion 111 and a rear wall portion 113 opposite to each other, and a right wall portion 118 and a left wall portion 119 opposite to each other. Figure 1 In the example shown, the dust hood 100 also includes a bottom wall portion 115. The bottom wall portion 115 is preferably configured as a generally arched shape arching towards a second side of the dust hood 110, with a predetermined distance between the apex of the arch and the top wall portion 117. The lower edge of the bottom wall portion 115, opposite to the apex of the arch, together with the front wall portion 111, the rear wall portion 113 (and optionally the right wall portion 118 or the left wall portion 119), defines the hood opening 114. Figure 1 As shown, the cover opening 114 is configured as, for example, three parallel and spaced-apart cover openings, corresponding to three packages arranged on three parallel chain assemblies 210. Each cover opening 114 is configured to face the packaging opening of the corresponding package 230, and preferably, the center of each cover opening 114 is configured to coincide vertically with the center of the packaging opening of the package 230. The bottom wall portion 115 is configured as, for example, two, in... Figure 2 In the example shown, the leftmost hood opening 114 is defined by the lower edge of the left bottom wall portion 115 and the lower edges of the front wall portion 111, rear wall portion 113, and left wall portion 119. The middle hood opening 114 is defined by the lower edges of the left bottom wall portion 115, front wall portion 111, rear wall portion 113, and right bottom wall portion 115. The rightmost hood opening 114 is defined by the lower edge of the right bottom wall portion 115 and the lower edges of the front wall portion 111, rear wall portion 113, and right wall portion 118. Furthermore, an exhaust vent 112 penetrating the top wall portion 117 of the dust collector hood 110 is formed therein, and the exhaust vent 112 can be positioned opposite the bottom wall portion 115. The dust removal device 10 also includes an exhaust duct 130 connected to the exhaust port 112 for providing suction.

[0035] The jet pipe 120 is arranged to extend into the dust hood 110 through the top wall portion 117 (specifically, through the mounting hole 116 formed through the top wall portion 117). One jet pipe 120 is correspondingly provided at each hood opening 114. Specifically, as... Figure 4As shown, the jet pipe 120 includes a first section 123 having a jet outlet 124 and a second section 121 having a jet inlet 122. The first section 123 extends into the dust collector hood 110, and the second section 121 is located outside the dust collector hood 110. The jet outlet 124 of the second section 123 faces the hood opening 114. The dust collection device 10 also includes an air delivery pipeline (not shown in the figure) for delivering compressed air. The air delivery pipeline is connected to the jet inlet 122 of the second section 121 of the jet pipe 110. Compressed air enters the jet pipe 110 through the jet inlet 122 and is then ejected through the jet outlet 124 to achieve the injection of compressed air into the package 230 (specifically, the packaging opening of the package 230).

[0036] When compressed air is ejected from the jet outlet 124 and passes through the hood opening 114 to enter the packaging 230 through the packaging opening, the airflow lifts or blows out impurities such as dust and paper scraps from inside the packaging 230. These impurities, along with the air, are drawn into the dust removal hood 110 through the hood opening 114 and are then extracted through the exhaust port 112 and the suction pipe 130 to the outside of the filling equipment 10, thereby achieving the dust removal operation of the packaging 230.

[0037] Specifically, to further improve the dust removal effect, the first section 123 of the jet pipe 120 includes bends 125 and 126. Specifically, as... Figure 4 As shown, the first section 123 of the jet pipe 120, along the airflow direction, includes an inlet section 1231, an intermediate section 1232, and an outlet section 1233, all constructed as straight sections. The inlet section 1231 and the intermediate section 1232 are connected by a first bend 125, and the intermediate section 1232 and the outlet section 1233 are connected by a second bend 126. Preferably, the first bend 125 is configured to face one side (in... Figure 4 The structure shown is a roughly arc-shaped structure deflected to the left, with the second bend 126 configured to face the opposite side (in the diagram). Figure 4 The structure is roughly arc-shaped (shown as deflecting to the right), thereby achieving a smooth transition and connection between the entry section 1231, the intermediate section 1232 and the discharge section 1233, avoiding flow loss.

[0038] Due to the arrangement of the first bend 125 and the second bend 126, the intermediate section 1232 can be configured to be inclined relative to the inlet section 1231 and the outlet section 1233 (for example, the inlet section 1231 and the outlet section 1233 can be arranged perpendicular to the plane where the packaging opening of the package 230 is located), thereby causing the central axis of the air outlet 124 of the first section 123 of the air pipe 120 to be offset relative to the central axis of the air inlet 122 of the second section 121 of the air pipe 120 (in Figure 4(As shown in the diagram, the central axis of the jet outlet 124 is offset to the left relative to the central axis of the jet inlet 122). Since the compressed air enters the jet pipe 120 from the jet inlet 122, the airflow distribution within the jet pipe 120 is parabolic. The offset of the central axis of the jet outlet 124 relative to the central axis of the jet inlet 122 shifts the apex of the parabolic airflow distribution, making it easier for the airflow to form vortices inside the packaging 230 when it enters the packaging 230 from the packaging opening. Figure 5 The airflow distribution within the dust removal device 100 is shown. For example... Figure 5 As shown, the airflow ejected from the jet pipe 120 with its bend creates a large vortex inside the package 230. Because the vortex carries energy, it enhances the friction between the airflow and the inner wall of the package 230, thereby better removing dust and paper scraps from the inner wall and further improving the dust removal effect. Furthermore, compared to a completely vertical jet pipe configuration, the jet pipe 120, including the bend, allows for more flexible and free design and installation space. Therefore, the dust removal effect can be improved simply by modifying the jet pipe without affecting the arrangement and structure of other components of the dust removal device 100, and it can also be adapted to the dust removal needs of packages of different sizes.

[0039] Preferably, such as Figure 2 and Figure 3 As shown, the bend is configured such that the center of the jet outlet 124 is relative to the center of the jet inlet 122 (in Figure 2 The jet outlet 124, which is offset further away from the center of the cover opening 114 (coinciding with the center of the mounting hole 116), is particularly suitable for cases where the packaging opening of the package 230 is large and the projection of the mounting hole 116 on the plane of the packaging opening is close to the center of the packaging opening. In other words, if a vertical jet pipe is used, the position of the mounting hole 116 on the dust cover limits the position of the jet outlet 124, which may result in a closer distance between the projection of the jet outlet on the plane of the packaging opening and the center of the packaging opening, affecting the generation of vortices in the airflow inside the package 230. In contrast, with the jet pipe 120 with a bend according to this invention, even if the position of the mounting hole on the dust cover is limited, the bend allows the jet outlet 124 to be offset further away from the center of the cover opening 114 without changing the position of the mounting hole. This allows the airflow to enter the package 230 along a path closer to the inner wall of the package 230, which is more conducive to the formation of vortices in the airflow inside the package 230 to improve the dust removal effect.

[0040] Of course, those skilled in the art will understand that, for cases where the packaging opening of the package is small and the projection of the mounting hole on the dust hood onto the plane where the packaging opening is located is outside the packaging opening, the bend can also be configured such that the center of the jet outlet is offset closer to the center of the hood opening than the center of the jet inlet (which coincides with the center of the mounting hole 116), thereby allowing airflow to be introduced into the package 230 along a path close to the inner wall of the package 230.

[0041] Preferably, the jet outlet 124 is configured to spray airflow toward the package in a direction perpendicular to the plane where the package opening of the package 230 is located, so that the airflow enters the package 230 along the extension direction of the inner sidewall of the package, thereby generating the largest possible vortex within the package 230 to achieve a better dust removal effect.

[0042] Preferably, the area ratio of the cover opening 114 to the packaging opening of the packaging 230 is 1:0.8. The inventors have found that by setting it in this way, the blown-up impurities can be reliably sucked up, thereby achieving a better dust removal effect.

[0043] Preferably, in order to make the airflow ejected from the jet outlet 124 of the jet pipe 120 enter the packaging opening and the packaging along a path close to the inner sidewall of the packaging and generate the largest possible vortex inside the packaging to enhance the dust removal effect, the distance between the center of the jet outlet 124 and the center of the cover opening 114 on the plane where the packaging opening of the packaging 230 is located is in the range of 18mm to 20mm in a direction perpendicular to the transport direction of the packaging 230.

[0044] Preferably, such as Figure 3 As shown, the packaging opening of package 230 is rectangular, with the short side of the opening parallel to the transport direction of the package. The center of the jet outlet 124 is configured to be offset from the center of the cover opening 114, away from the short side of the packaging opening. This arrangement facilitates the formation of a larger vortex within package 230 and promotes the removal of impurities. More preferably, the distance between the center of the jet outlet 124 and one short side of the packaging opening of package 230 is in the range of 4mm to 6mm, and the distance between the center of the jet outlet 124 and one long side of the packaging opening of package 230 is in the range of 16mm to 18mm. By positioning the center of the jet outlet 124 in this way, it is even more beneficial to remove impurities, thereby achieving a good dust removal effect.

[0045] Furthermore, those skilled in the art will understand that the bend in the jet pipe 120 can be configured as follows: Figure 4The section shown is composed of curved sections, but it can also be constructed from straight sections. For example, it can be constructed as a zigzag bend formed by connecting two straight sections that form a certain angle (preferably an obtuse angle), thus facilitating modular manufacturing and installation to adapt to the structural requirements of different equipment models. Furthermore, the inlet section 1231, intermediate section 1232, and outlet section 1233 of the first section 123 are not limited to the following... Figure 4 Instead of the linear structure shown, it can be constructed as an arc-shaped pipe with a certain curvature.

[0046] Preferably, the bend in the jet pipe 120 involves multiple bends (e.g., such as...). Figure 4 The air jet inlet 122 and the air jet outlet 124 are formed in a manner that allows the central axes of both the inlet 122 and the outlet 124 to be perpendicular to the plane containing the opening of the package 230. Thus, without changing the position of the mounting hole, the offset of the outlet 124 relative to the inlet 122 is achieved while still allowing the central axis of the outlet 124 to be perpendicular to the plane containing the opening of the package 230, so that the compressed air travels in a direction perpendicular to the plane containing the opening of the package 230 (in...). Figure 1 , Figure 4 The airflow is sprayed downwards (as shown in the diagram, vertically downwards), thereby better delivering the airflow to the bottom of the package 230, which is more conducive to the comprehensive dust removal inside the package 230.

[0047] Preferably, such as Figure 1 As shown, the end of the jet pipe 120 that has a jet outlet 124 (at) Figure 1 The lower edge of the defined opening 114 of the dust hood 110 (shown as the lower end) does not extend beyond the lower edge of the front wall portion 111, rear wall portion 113, left wall portion 119, right wall portion 118, and bottom wall portion 115. This facilitates control of the distance between the air outlet 124 of the air pipe 120 and the packaging opening of the package 230, and helps to effectively blow and suck up dust, thereby improving dust removal efficiency. In some embodiments, the distance between the air outlet 124 of the air pipe 120 and the top of the package can be 14 mm to 16 mm.

[0048] The dust removal device and filling equipment according to preferred embodiments of the present invention have been described above with reference to specific embodiments. It is understood that the above description is exemplary only and not restrictive, and various modifications and variations can be conceived by those skilled in the art with reference to the above description without departing from the scope of the present invention. These modifications and variations are also included within the protection scope of the present invention.

Claims

1. A dust removal device for removing dust from packaged goods during transportation, the dust removal device comprising: A dust removal hood, the dust removal hood including a hood opening disposed on a first side of the dust removal hood, the hood opening being configured to face the packaging opening of the package; as well as The jet pipe includes a first section having a jet outlet and a second section having a jet inlet, the first section extending into the dust collector hood and the second section located outside the dust collector hood. The first section of the jet pipe is characterized in that it includes a bend, the bend being configured such that the central axis of the jet outlet of the first section of the jet pipe is offset relative to the central axis of the jet inlet of the second section of the jet pipe.

2. The dust removal device according to claim 1, wherein, The packaging opening is rectangular, with its short side parallel to the transport direction of the package, and the center of the jet outlet is configured to be offset away from the center of the hood opening, facing one of the short sides of the packaging opening.

3. The dust removal device according to claim 2, wherein, The distance between the center of the jet outlet and one of the short sides is in the range of 4 mm to 6 mm.

4. The dust removal device according to claim 1, wherein, The distance between the center of the jet outlet and the center of the hood opening projected onto the plane where the packaging opening is located, in a direction perpendicular to the transport direction of the package, is in the range of 18 mm to 20 mm.

5. The dust removal device according to claim 1, wherein, The bend is configured such that the center of the jet outlet is offset further away from the center of the shroud opening compared to the center of the jet inlet.

6. The dust removal device according to any one of claims 1 to 5, wherein, The bending portion is constructed to consist of either a straight section or a curved section.

7. The dust removal device according to any one of claims 1 to 5, wherein, The bend is formed by bending the jet pipe multiple times, so that the central axes of the jet inlet and the jet outlet are both perpendicular to the plane where the packaging opening is located.

8. The dust removal device according to claim 7, wherein, The bend is formed by bending the jet pipe twice.

9. The dust removal device according to any one of claims 1 to 5, wherein, The end of the jet pipe with the jet outlet does not extend beyond the lower edge of the dust hood that defines the opening of the hood.

10. The dust removal device according to any one of claims 1 to 5, wherein, The dust hood includes a top wall portion disposed on a second side opposite to the first side of the dust hood, and the jet pipe passes through the top wall portion so that the first section extends into the dust hood.

11. The dust removal device according to any one of claims 1 to 5, wherein, The jet outlet is configured to jet an airflow toward the package in a direction perpendicular to the plane where the package opening is located, such that the airflow enters the package along the extension direction of the inner sidewall of the package, thereby generating a vortex within the package.

12. The dust removal device according to any one of claims 1 to 5, wherein, The area ratio of the cover opening to the packaging opening is 1:0.

8.

13. The dust removal device according to any one of claims 1 to 5, wherein, The dust removal device also includes an air delivery pipeline for delivering compressed air, which is connected to the air inlet of the second section of the jet pipe to spray the compressed air onto the package.

14. The dust removal device according to claim 13, wherein, The dust collector hood includes a top wall portion disposed on a second side opposite to the first side, and the top wall portion has an exhaust port extending through the top wall portion. The dust removal device further includes an exhaust duct connected to the exhaust port, so that impurities inside the package that are blown up by the compressed air from the jet pipe can be extracted through the exhaust port and the exhaust duct.

15. A filling device, characterized in that, The filling equipment includes a dust removal device according to any one of claims 1 to 14.

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