Air suction channel conversion device for printing and coating drying room

Abstract

The utility model provides an air suction channel conversion device for a printing and coating drying room. The air suction channel conversion device comprises a box body, an adjusting inner core and a driving assembly. A containing cavity is formed in the box body, an air outlet connecting pipe, a first air suction connecting pipe and a second air suction connecting pipe are arranged on the box body, and an adjusting valve is arranged on the second air suction connecting pipe. The adjusting inner core is rotatably arranged in the containing cavity, a flow guide cavity is formed in the adjusting inner core, and flow guide holes are formed in the side wall of the adjusting inner core. And a connecting shaft is arranged at the other end of the adjusting inner core. The driving assembly comprises a driving air cylinder and a connecting piece, the connecting piece is arranged on the connecting shaft, and a telescopic rod of the driving air cylinder is connected with the connecting piece. According to the air suction channel switching device for the printing and coating drying room, the adjusting difficulty of the on-off action of the air suction channel can be reduced, and the negative pressure suction force of the air suction channel can be conveniently and flexibly adjusted.

Description

Technical Field

[0001] The utility model belongs to the field of packaging equipment, in particular to an air suction duct conversion device for a printing, coating and drying room. Background Art

[0002] Printing, coating, and drying rooms are common packaging and printing equipment. During operation, printed sheets are positioned and sucked in by suction ducts inside the room. The ducts are flexibly controlled based on the rotation frequency of the drying racks to prevent them from colliding with the racks and causing damage.

[0003] Since frequent starting and stopping actions will affect the service life of the fan, in the existing technology, staff usually keep the fan in the on state at all times and set a conversion device inside the suction air duct, so as to control the on and off of the suction air duct with the help of the action of the conversion device. However, the traditional conversion device is generally connected to the drive motor of the drying room flower rack by belt transmission. Therefore, it is difficult to adjust the operation frequency of the conversion device. Each time an adjustment is made, the transmission belt needs to be frequently disassembled and assembled and the machine needs to be tested, which seriously affects work efficiency. In addition, the function of the existing conversion device is relatively simple and can only control the on and off of the suction air duct. When the negative pressure suction required for the suction air duct changes due to changes in the specifications of the printed sheets to be processed, the staff can only adjust or replace the fan, and cannot quickly adjust the negative pressure suction in the suction air duct through the conversion device. Utility Model Content

[0004] In view of this, the present invention aims to provide an air suction duct conversion device for a printing, coating and drying room to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A suction air duct conversion device for a printing, coating and drying room, comprising:

[0007] A box body is provided with a accommodating cavity and a connecting cavity that are interconnected, and the connecting cavity is arranged above the accommodating cavity; a first air intake pipe is provided on the left side wall of the box body, an air outlet pipe is provided on the rear side wall of the box body, and a connecting hole is provided on the front side wall of the box body, the air outlet pipe and the first air intake pipe are both connected to the accommodating cavity, and the connecting hole is aligned with the air outlet pipe; a second air intake pipe is provided on the top surface of the box body, the second air intake pipe is connected to the connecting cavity, and a regulating valve is provided on the second air intake pipe;

[0008] An adjusting inner core, wherein the adjusting inner core is rotatably arranged inside the accommodating cavity, the outer diameter of the adjusting inner core is equal to the inner diameter of the accommodating cavity, a flow guide cavity is provided inside the adjusting inner core, and a flow guide hole connected to the flow guide cavity is provided on the side wall of the adjusting inner core; a flow guide pipe connected to the flow guide cavity is provided at one end of the adjusting inner core, and the flow guide pipe is connected to the air outlet pipe, and a connecting shaft is provided at the other end of the adjusting inner core, and the connecting shaft extends to the outside of the box along the connecting hole;

[0009] The driving assembly includes a driving cylinder and a connecting piece, wherein the connecting piece is arranged on a connecting shaft, and the telescopic rod of the driving cylinder is connected to the connecting piece, and the telescopic rod of the driving cylinder is perpendicular to the connecting shaft.

[0010] Furthermore, the inner diameters of the flow guiding pipe and the flow guiding hole are both equal to the inner diameter of the air outlet pipe, and the inner diameter of the second air intake pipe is larger than the inner diameter of the flow guiding hole.

[0011] Furthermore, the connecting part includes a connecting sleeve and a connecting rod, the connecting sleeve is detachably mounted on the connecting shaft, and the connecting rod is arranged on the outer side wall of the connecting sleeve; a mounting shaft is provided at the end of the telescopic rod of the driving cylinder, and a mounting oblong hole for accommodating the mounting shaft is provided on the connecting rod, and the length direction of the mounting oblong hole is perpendicular to the axial direction of the connecting sleeve.

[0012] Furthermore, a limiting strip is provided on the inner side wall of the connecting sleeve, and a limiting groove for accommodating the limiting strip is provided on the side wall of the connecting shaft.

[0013] Furthermore, a first sealing ring is provided on the diversion pipe, a second sealing ring is provided on the connecting shaft, and a first sealing groove for accommodating the first sealing ring and a second sealing groove for accommodating the second sealing ring are provided on the inner side wall of the box body.

[0014] Furthermore, the suction air duct conversion device for the printing and coating drying room also includes a filter core; an assembly hole connected to the guide cavity is provided on the end face of the connecting shaft, and the filter core is detachably arranged inside the assembly hole, and the bottom end of the filter core is inserted into the guide pipe through the guide cavity, and the outer diameter of the filter core is equal to the inner diameter of the guide pipe.

[0015] Furthermore, support legs are provided on the bottom surface of the box.

[0016] Compared with the prior art, the suction air duct conversion device for a printing, coating and drying room described in the present invention has the following advantages:

[0017] (1) The utility model discloses a suction air duct conversion device for a printing and coating drying room, which can drive the regulating inner core to rotate inside the accommodating cavity through a driving component. Since a guide hole is provided on the side wall of the regulating inner core, and the guide cavity in the regulating inner core is connected to the air outlet pipe through a guide pipe, when the staff connects the air outlet pipe to the fan and connects the second suction pipe to the suction air duct, the rotation of the regulating inner core can control the on-off of the suction air duct. The staff can adjust the operating frequency of the driving cylinder according to the rotation frequency of the drying room flower rack so that the on-off action of the suction air duct is synchronized with the rotation action of the drying room flower rack, thereby reducing the difficulty of adjusting the on-off of the suction air duct and ensuring that the printed sheets are well protected inside the printing and coating drying room. In addition, the device is provided with a regulating valve on the second suction pipe, and the staff can adjust the gas flow in the second suction pipe through the control valve, thereby flexibly adjusting the negative pressure generated by the suction air duct, thereby adapting to the adsorption and positioning work of printed sheets of various specifications.

[0018] (2) The utility model discloses an air duct conversion device for a printing and coating drying room, wherein a mounting oblong hole is provided on the connecting rod. When the telescopic rod of the driving cylinder is extended and retracted, the mounting shaft can slide inside the mounting oblong hole to avoid a dead point in the movement of the driving cylinder. In addition, the device is provided with a limit strip on the inner wall of the connecting sleeve and a limit groove on the outer wall of the connecting shaft. The cooperation of the limit strip and the limit groove can limit the circumferential position of the connecting member to avoid relative rotation between the connecting member and the connecting shaft.

[0019] (3) The suction air duct conversion device for a printing, coating and drying room described in the present invention has a detachable filter core in the regulating inner core. When the device is in use, the filter core can filter and intercept debris that falls off the printed sheets to prevent the debris from damaging the fan. At the same time, the staff can also regularly remove and replace the filter core to prevent the filter core from being blocked by debris, thereby ensuring a smooth air flow environment inside the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic structural diagram of the suction air duct conversion device for a printing, coating and drying room according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the suction air duct conversion device for a printing, coating and drying room according to an embodiment of the present utility model;

[0023] Figure 3This is a cross-sectional view of the suction air duct conversion device for a printing, coating and drying room according to an embodiment of the present utility model (the guide hole is connected to the first suction pipe);

[0024] Figure 4 This is a cross-sectional view of the suction air duct conversion device for a printing, coating and drying room according to an embodiment of the present utility model (the guide hole is connected to the second suction pipe);

[0025] Figure 5 This is a cross-sectional view of the suction duct conversion device for a printing, coating and drying room according to an embodiment of the present invention from another angle (the guide hole is connected to the second suction pipe);

[0026] Figure 6 This is a schematic structural diagram of the drive assembly according to an embodiment of the present utility model;

[0027] Figure 7 This is a schematic structural diagram of the regulating inner core and the filter core according to an embodiment of the present utility model;

[0028] Figure 8 This is a schematic structural diagram of the adjustment inner core described in an embodiment of the present utility model.

[0029] Description of reference numerals:

[0030] 1-housing; 11-accommodating cavity; 12-connecting cavity; 13-connecting hole; 14-supporting leg; 21-air outlet pipe; 22-first air intake pipe; 23-second air intake pipe; 231-regulating valve; 3-regulating inner core; 31-flow guide hole; 32-flow guide pipe; 321-first sealing ring; 33-connecting shaft; 331-limiting groove; 332-second sealing ring; 333-assembly hole; 4-driving cylinder; 41-mounting shaft; 51-connecting sleeve; 511-limiting strip; 52-connecting rod; 521-mounting oblong hole; 6-filter element. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] A suction air duct conversion device for a printing and coating drying room, the structure of which can be Figures 1-8 In this embodiment, the suction air duct conversion device for a printing, coating, and drying room comprises: a housing 1, an adjusting inner core 3, and a drive assembly. The housing 1 is provided with a accommodating cavity 11 and a connecting cavity 12 that are interconnected. The connecting cavity 12 is disposed above the accommodating cavity 11. The adjusting inner core 3 is rotatably disposed within the accommodating cavity 11. The drive assembly is disposed outside the housing 1 and can be used to drive the adjusting inner core 3 to rotate, thereby switching the air flow direction within the housing 1 and controlling the on / off of the suction air duct.

[0036] Specifically, the left side wall of the housing 1 is provided with a first air intake pipe 22 connected to the accommodating cavity 11, the rear side wall of the housing 1 is provided with an air outlet pipe 21 connected to the accommodating cavity 11, and the top surface of the housing 1 is provided with a second air intake pipe 23 connected to the connecting cavity 12, and a regulating valve 231 is provided on the second air intake pipe 23. Before use, the operator can connect the air outlet pipe 21 to the air inlet of the blower and connect the second air intake pipe 23 to the air intake duct. During use, the operator can adjust the position of the regulating inner core 3 by rotating it, thereby changing the direction of gas flow inside the housing 1. When the posture of the inner core 3 is adjusted so that the air outlet pipe 21 is connected to the second air intake pipe 23, the suction air duct will be connected to the air inlet of the fan. At this time, the suction air duct can adsorb and position the printed sheets. When the posture of the inner core 3 is adjusted so that the air outlet pipe 21 is connected to the first air intake pipe 22, the suction air duct is disconnected from the fan, and the fan will inhale air from the external environment through the first air intake pipe 22, thereby avoiding the suction air duct from having an adsorption effect on the printed sheets.

[0037] To facilitate the installation of the adjustable inner core 3, a connecting hole 13 should be provided on the front side wall of the box body 1, and the connecting hole 13 should be aligned with the air outlet pipe 21. In order to achieve the purpose of changing the flow direction of gas inside the box body 1, the outer diameter of the adjustable inner core 3 in this embodiment should be equal to the inner diameter of the accommodating cavity 11. A diversion cavity is provided inside the adjustable inner core 3, and a diversion hole 31 connected to the diversion cavity is provided on the side wall of the adjustable inner core 3. A diversion pipe 32 connected to the diversion cavity is provided at one end of the adjustable inner core 3, and a connecting shaft 33 is provided at the other end. During assembly, the staff can connect the diversion pipe 32 with the air outlet pipe 21 and extend the connecting shaft 33 along the connecting hole 13 to the outside of the box body 1, so that the adjustable inner core 3 can rotate inside the accommodating cavity 11.

[0038] like Figure 3 As shown, at this time, the guide hole 31 on the inner core 3 is adjusted to be aligned with the first air intake pipe 22, so the air outlet pipe 22 will be connected to the first air intake pipe 22. Figure 4 and Figure 5 As shown, at this time, the guide hole 31 on the adjustment inner core 3 is aligned with the connecting cavity 12 , so the air outlet pipe 22 is connected to the second air intake pipe 23 .

[0039] Optionally, since the device is provided with a regulating valve 231 on the second air intake pipe 23, in order to facilitate the staff to control the gas flow in the second air intake pipe 23 through the regulating valve 231, thereby flexibly adjusting the negative pressure suction of the suction air duct, the inner diameter of the guide pipe 32 and the inner diameter of the guide hole 31 should be equal to the inner diameter of the air outlet pipe 21, and the inner diameter of the second air intake pipe 23 should be larger than the inner diameter of the guide hole 31.

[0040] As an optional implementation of this embodiment, to prevent gas inside the box body 1 from flowing outward along the joint gap between the regulating inner core 3 and the box body 1, a first sealing ring 321 may be provided on the flow guide pipe 32, and a second sealing ring 332 may be provided on the connecting shaft 33. Accordingly, a first sealing groove for accommodating the first sealing ring 321 and a second sealing groove for accommodating the second sealing ring 332 should be provided on the inner side wall of the box body 1, respectively, to achieve a good sealing effect between the regulating inner core 3 and the box body 1.

[0041] To drive the adjustment inner core 3 to rotate, the drive assembly in this embodiment includes a drive cylinder 4 and a connector. The connector is mounted on a connecting shaft 33, and the telescopic rod of the drive cylinder 4 is connected to the connector, with the telescopic rod of the drive cylinder 4 being perpendicular to the connecting shaft 33. When the telescopic rod of the drive cylinder 4 is extended or retracted, the connector applies a torque to the connecting shaft 33, thereby driving the adjustment inner core 3 to rotate, thereby adjusting the orientation of the guide hole 31 and achieving the purpose of controlling the opening and closing of the suction airway.

[0042] Optional, such as Figure 6 As shown, the connecting member may include a connecting sleeve 51 and a connecting rod 52, wherein the connecting sleeve 51 is detachably sleeved on the connecting shaft 33, and the connecting rod 52 is arranged on the outer side wall of the connecting sleeve 51. In order to realize the connection transmission between the connecting member and the telescopic rod of the driving cylinder 4, a mounting shaft 41 may be provided at the end of the telescopic rod of the driving cylinder 4, and a mounting oblong hole 521 may be provided on the connecting rod 52, the length direction of which is perpendicular to the axial direction of the connecting sleeve 51. During assembly, the staff can insert the mounting shaft 41 into the mounting oblong hole 521. When the telescopic rod of the driving cylinder 4 performs a telescopic action, the mounting shaft 41 will slide inside the mounting oblong hole 521, thereby avoiding the dead point of the telescopic rod of the driving cylinder 4, and ensuring that the driving assembly can smoothly drive the adjusting inner core 3 to rotate.

[0043] Furthermore, to prevent relative rotation between the connecting sleeve 51 and the connecting shaft 33, a limiting strip 511 is provided on the inner sidewall of the connecting sleeve 51, and a limiting groove 331 is provided on the sidewall of the connecting shaft 33 to accommodate the limiting strip 511. When the connecting sleeve 51 is sleeved onto the connecting shaft 33, the limiting strip 511 is inserted into the limiting groove 331. The cooperation between the limiting strip 511 and the limiting groove 331 circumferentially limits the connecting sleeve 51, ensuring that the force generated by the drive assembly is accurately transmitted to the adjustment core 3.

[0044] During actual operation, printed sheets may drop fine debris during transport, which can easily cause the suction duct and fan to become clogged due to the accumulation of debris. To address this issue, the suction duct conversion device for a printing, coating, and drying room provided in this embodiment also includes a filter element 6. The outer diameter of the filter element 6 should be equal to the inner diameter of the diversion pipe 32. To facilitate installation of the filter element 6, an assembly hole 333 communicating with the diversion cavity can be provided on the end surface of the connecting shaft 33. During assembly, the filter element 6 can be removably mounted within the assembly hole 333 using a threaded connection, allowing the bottom end of the filter element 6 to pass through the diversion cavity and into the diversion pipe 32. When debris from printed sheets enters the device, the filter element 6 filters and intercepts the debris, preventing it from entering the fan and protecting the fan. Furthermore, the filter element 6 can be regularly removed and replaced to ensure a smooth air flow environment within the device.

[0045] As another optional implementation of this embodiment, to facilitate the fixed installation of the device, support legs 14 may be further provided on the bottom surface of the box body 1. During installation, the staff can use the support legs 14 to fix the device between the fan and the air intake duct to prevent abnormal movement of the device during use.

[0046] The following describes the effects of the above scheme:

[0047] This embodiment provides a suction duct conversion device for a printing, coating, and drying room. This device, driven by a drive assembly, rotates an adjustable inner core within a cavity, thereby controlling the opening and closing of the suction duct. Compared with existing technologies, this device reduces the difficulty of adjusting the suction duct opening and closing. Furthermore, the device can flexibly adjust the negative pressure suction generated by the suction duct via a regulating valve, accommodating the suction and positioning of printed sheets of various sizes. Furthermore, the device can intercept debris from printed sheets through a filter element, thereby protecting the fan.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A suction air duct conversion device for a printing and coating drying room, characterized in that: include: A box body (1) is provided with a accommodating cavity (11) and a connecting cavity (12) that are communicated with each other, and the connecting cavity (12) is arranged above the accommodating cavity (11); a first air intake pipe (22) is provided on the left side wall of the box body (1), an air outlet pipe (21) is provided on the rear side wall of the box body (1), and a connecting hole (13) is provided on the front side wall of the box body (1); the air outlet pipe (21) and the first air intake pipe (22) are both communicated with the accommodating cavity (11), and the connecting hole (13) and the air outlet pipe (21) are aligned with each other; a second air intake pipe (23) is provided on the top surface of the box body (1), the second air intake pipe (23) is communicated with the connecting cavity (12), and a regulating valve (231) is provided on the second air intake pipe (23); An adjusting inner core (3) is rotatably arranged inside the accommodating cavity (11), the outer diameter of the adjusting inner core (3) is equal to the inner diameter of the accommodating cavity (11), a flow guiding cavity is provided inside the adjusting inner core (3), and a flow guiding hole (31) communicating with the flow guiding cavity is provided on the side wall of the adjusting inner core (3); a flow guiding pipe (32) communicating with the flow guiding cavity is provided at one end of the adjusting inner core (3), and the flow guiding pipe (32) is connected to the air outlet pipe (21); a connecting shaft (33) is provided at the other end of the adjusting inner core (3), and the connecting shaft (33) extends to the outside of the box body (1) along the connecting hole (13); A drive assembly comprises a drive cylinder (4) and a connecting piece, wherein the connecting piece is arranged on a connecting shaft (33), a telescopic rod of the drive cylinder (4) is connected to the connecting piece, and the telescopic rod of the drive cylinder (4) is perpendicular to the connecting shaft (33).

2. The suction air duct conversion device for a printing and coating drying room according to claim 1, characterized in that: The inner diameters of the flow guide pipe (32) and the flow guide hole (31) are both equal to the inner diameter of the air outlet pipe (21), and the inner diameter of the second air intake pipe (23) is larger than the inner diameter of the flow guide hole (31).

3. The suction air duct conversion device for a printing and coating drying room according to claim 1, characterized in that: The connecting member comprises a connecting sleeve (51) and a connecting rod (52), wherein the connecting sleeve (51) is detachably sleeved on the connecting shaft (33), and the connecting rod (52) is arranged on the outer side wall of the connecting sleeve (51); a mounting shaft (41) is provided at the end of the telescopic rod of the driving cylinder (4), and a mounting oblong hole (521) for accommodating the mounting shaft (41) is provided on the connecting rod (52), and the length direction of the mounting oblong hole (521) is perpendicular to the axial direction of the connecting sleeve (51).

4. The suction air duct conversion device for a printing and coating drying room according to claim 3, characterized in that: A limiting strip (511) is provided on the inner side wall of the connecting sleeve (51), and a limiting groove (331) for accommodating the limiting strip (511) is provided on the side wall of the connecting shaft (33).

5. The suction air duct conversion device for a printing and coating drying room according to claim 1, characterized in that: A first sealing ring (321) is provided on the diversion pipe (32), a second sealing ring (332) is provided on the connecting shaft (33), and a first sealing groove for accommodating the first sealing ring (321) and a second sealing groove for accommodating the second sealing ring (332) are provided on the inner side wall of the box body (1).

6. The suction air duct conversion device for a printing and coating drying room according to claim 1, characterized in that: The suction air duct conversion device for the printing, coating and drying room further comprises a filter core (6); an assembly hole (333) communicating with the guide cavity is provided on the end face of the connecting shaft (33); the filter core (6) is detachably arranged inside the assembly hole (333); the bottom end of the filter core (6) is inserted into the guide pipe (32) through the guide cavity, and the outer diameter of the filter core (6) is equal to the inner diameter of the guide pipe (32).

7. The suction air duct conversion device for a printing and coating drying room according to claim 1, characterized in that: Support legs (14) are provided on the bottom surface of the box body (1).

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