Front edge air suction device of carton processing machine and carton processing machine comprising front edge air suction device

Abstract

The utility model provides a front edge air suction device of a carton processing machine and the carton processing machine comprising the front edge air suction device. The front edge air suction device of the carton processing machine comprises an air suction pipe and an air door, the air suction pipe comprises a front edge port, a fan port and a main pipe wall, the main pipe wall is provided with a first opening, a second opening and a third opening, the third opening is located between the first opening and the second opening, and the first opening and the third opening are located between the front edge port and the fan port; the air door penetrates through the third opening and is connected with the air suction pipe through a rotating shaft; when the air door is located at the first position, the first opening, the second opening and the third opening can be closed, and when the air door is located at the second position, the pipeline between the front edge port and the fan port can be blocked. The carton processing machine comprises the front edge air suction device of the carton processing machine.

Description

Technical Field

[0001] This application belongs to the technical field of carton processing, and particularly relates to a front-edge air suction device for a carton processing machine and a carton processing machine including the same. Background Art

[0002] The background art provided here is used to generally introduce the background of this application. The work of the currently named inventors to the extent described in this background art section, and aspects of this description that do not constitute prior art at the time of application, are neither expressly nor impliedly admitted to be prior art conflicting with this application.

[0003] In a carton processing machine, the front-edge paper feeding device plays an important role. During the carton processing, the front-edge paper feeding device is usually connected to a blower, and the blower sucks air to form a negative pressure, so that the cardboard is closely attached to the paper feeding wheel of the front-edge device, and the paper feeding wheel drives the cardboard forward by using the friction force between it and the cardboard during rotation.

[0004] In the prior art, the blower is usually directly connected to the front-edge device through a connecting pipe and lacks an air path adjusting device. For example, Chinese Utility Model Patent CN207842156U discloses a front-edge paper feeding device for a corrugated carton production line, which includes a frame, a cross beam, a conveyor belt, a guide wheel, a driving device, an adjusting screw, a suction hole, a connection hole, a connecting pipe, a square box, and an induced draft fan. There are two parallel cross beams on the frame. The cross beam is provided with a conveyor belt for driving the cardboard to move. The conveyor belt is driven by a plurality of guide wheels arranged on both sides of the cross beam. The guide wheel is driven by a driving device. The adjusting screw is vertically connected to the two cross beams. The cross beam is a square steel with a cavity inside. The upper end surface of the cross beam is provided with a plurality of suction holes, and its side end surface is provided with a connection hole connected to the cavity inside the cross beam. The connection hole is connected to the square box through a connecting pipe, and the square box is connected to the induced draft fan through a connecting pipe.

[0005] In the existing technical solutions, when the front edge does not need to convey the cardboard, it is necessary to turn off the blower, or to separate the cardboard from the conveying wheel with the help of an auxiliary device while keeping the blower running. However, when the blower is turned off, the blades of the blower will continue to rotate for a certain period of time due to inertia and continue to suck air, which causes a certain lag in the stop of cardboard conveyance. And if other devices are used to separate the cardboard from the conveying wheel, the structure of the front-edge device will be more complex, and keeping the blower running will reduce the service life of the blower and consume electricity.

[0006] Therefore, a new front-edge air suction device for a carton processing machine is needed to connect the blower and the front-edge device. Summary of the Utility Model

[0007] This section introduces the selection of utility model concepts in a simplified form, which will be further embodied in the following detailed description. This section is not intended to identify the key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0008] In view of the problems existing in the prior art, on the one hand, the present application provides a front edge air suction device for a carton processing machine. The front edge air suction device for the carton processing machine includes an air suction pipe and an air door. Among them, the air suction pipe includes a front edge port, a fan port, and a main pipe wall. The main pipe wall is provided with a first opening, a second opening, and a third opening, and the third opening is located between the first opening and the second opening. The first opening and the third opening are located between the front edge port and the fan port. Among them, the air door passes through the third opening and is connected to the air suction pipe through a rotating shaft. And among them, when the air door is in the first position, it can close the first opening, the second opening, and the third opening. When the air door is in the second position, it can block the pipeline between the front edge port and the fan port.

[0009] Preferably, the main pipe wall includes a first pipe wall and a second pipe wall. The first pipe wall and the second pipe wall are parallel and form a stepped shape. The vertical distance between the first pipe wall and the second pipe wall is greater than or equal to the thickness of the air door. And the first opening is arranged on the first pipe wall, and the second opening is arranged on the second pipe wall.

[0010] Preferably, the main pipe wall is in a flat plate shape. The air door includes a first door body and a second door body. The first door body and the second door body are parallel to each other and are connected to form a stepped shape. And the vertical distance between the first door body and the second door body is greater than or equal to the thickness of the main pipe wall.

[0011] Preferably, the first opening and the third opening are communicated, and / or the second opening and the third opening are communicated.

[0012] Preferably, the front edge air suction device for the carton processing machine further includes a power device. The power device is connected to the rotating shaft through a transmission device, so as to be able to drive the rotating shaft to rotate.

[0013] Preferably, a front edge connecting portion is arranged around the front edge port for connecting with the front edge of the carton processing machine.

[0014] Preferably, a fan connecting portion is arranged around the fan port for connecting with the fan.

[0015] Preferably, a baffle is arranged on the inner wall of the air suction pipe, and the baffle is perpendicular to the inner wall of the air suction pipe.

[0016] Preferably, a sealing gasket is arranged on the edge of the air door.

[0017] Preferably, the power device is a motor, a cylinder, or a hydraulic cylinder.

[0018] Preferably, the front edge connecting portion is a flange or a snap structure.

[0019] Preferably, the transmission device is a coupling or a gear set.

[0020] Preferably, the fan connection portion is a flange pipe or a flange plate.

[0021] Preferably, the damper is connected to the rotating shaft by rivets.

[0022] Preferably, the power device is connected to the air suction pipe via a bracket.

[0023] In another aspect of the present application, a carton processing machine is also provided, which includes a suction device according to the principle of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other or additional features, advantages and details are presented by way of example only in the following detailed description of the embodiments. In the drawings:

[0025] Figure 1 , Figure 2 and Figure 3 Schematically showing a stereoscopic view, a front view and a left view of a front edge suction device of a carton processing machine according to the principle of the present application;

[0026] Figure 4 and Figure 5 An alternative embodiment of a leading edge air suction device of a carton processing machine and its corresponding air door according to the principle of the present application are schematically shown respectively;

[0027] Figure 6 and Figure 7 Another alternative embodiment of the leading edge suction device of a carton processing machine and its corresponding air door according to the principle of the present application are schematically shown respectively;

[0028] Figure 8 A top view of a leading edge suction device of a carton processing machine according to the principles of the present application is schematically shown. DETAILED DESCRIPTION

[0029] The following description is merely exemplary in nature and is not intended to limit the present application, application or use. Furthermore, there is no intention to be limited by any express or implied theory presented in the preceding technical field, background technology and utility model content or the following detailed description. It should be understood that throughout the drawings, corresponding reference numerals identify similar or corresponding parts or features.

[0030] The present application will now be further described. In the following paragraphs, different aspects of the present application are defined in more detail. Unless clearly indicated to the contrary, each aspect so defined may be combined with any other aspect(s). In particular, any feature indicated as being preferred or advantageous may be combined with any other feature(s) indicated as being preferred or advantageous.

[0031] In view of the problems in the prior art, the present application provides a new air suction device for the leading edge device of a carton processing machine. Referring to the attached Figure 1 and the attached Figure 2 , a carton processing machine leading edge air suction device 10 according to the principle of the present application is shown. The carton processing machine leading edge air suction device 10 includes an air suction pipe 100 and an air door 200. The air suction pipe 100 includes a leading edge port 110 and a fan port 120, where the leading edge port 110 is used to connect to the leading edge of the carton processing machine, and the fan port 120 is used to connect to a fan. When the fan operates, air enters the air suction pipe 100 from the leading edge of the carton processing machine through the leading edge port 110, flows through the pipeline of the air suction pipe 100 to the fan port 120, and then flows into the fan through the fan port 120, thereby forming a negative pressure at the leading edge so that the cardboard can be closely attached to the paper feeding wheel. The air suction pipe 100 is preferably rectangular or substantially rectangular, and can also be other shapes, and the present application does not limit this.

[0032] The leading edge port 110 and the fan port 120 can be arranged at the end faces at both ends of the air suction pipe 100 along the length direction or arranged on the walls of the air suction pipe 100 near both ends to meet different assembly position requirements. The leading edge port 110 and the fan port 120 can be either circular, rectangular or other shapes, and the present application does not limit this.

[0033] The air suction pipe 100 further includes a main pipe wall 130, and the main pipe wall 130 is provided with a first opening 131, a second opening 132 and a third opening 133. The third opening 133 is located between the first opening 131 and the second opening 132, and the first opening 131 and the third opening 133 are located between the leading edge port 110 and the fan port 120. The air door 200 can pass through the third opening 133 and is connected to the air suction pipe 100 through a rotating shaft 140, so that the air door 200 can extend into the interior of the air suction pipe 100 and can rotate.

[0034] Referring to the attached Figure 1 、the attached Figure 2 and the attached Figure 3 , in an embodiment, the main pipe wall 130 includes a first pipe wall 130a and a second pipe wall 130b. The first pipe wall 130a is parallel to the second pipe wall 130b and forms a stepped shape. Among them, the first pipe wall 130a can either protrude outward relative to the second pipe wall 130b or be recessed inward relative to the second pipe wall 130b. The first opening 131 can be arranged on the first pipe wall 130a, the second opening 132 can be arranged on the second pipe wall 130b, and the third opening 133 can be arranged between the first pipe wall 130a and the second pipe wall 130b. The air door 200 can be in a flat plate shape, and the vertical distance between the first pipe wall 130a and the second pipe wall 130b, that is, the height of the third opening 133, can be equal to the thickness of the air door 200.

[0035] When paper feeding is required, the air damper 200 is rotated in the first direction to the first position. At this position, the air damper 200 can be parallel to and in the middle of the first pipe wall 130a and the second pipe wall 130b, thereby closing the first opening 131 and the second opening 132. And since the height of the third opening 133 is the same as the thickness of the air damper 200, the air damper 200 can also close the third opening 133 at this time. Therefore, an air passage is formed inside the suction pipe 100. When paper feeding is not required, the air damper 200 is rotated in the second direction to the second position. At this position, the air damper 200 can block the pipeline between the leading edge port 110 and the fan port 120, so that air cannot flow between the leading edge port 110 and the fan port 120. It should be understood that blocking the pipeline between the leading edge port 110 and the fan port 120 means blocking the inner cavity of the suction pipe 100, so that air cannot flow between the leading edge port 110 and the fan port 120, and at this time the first opening 131, the second opening 132 and the third opening 133 are in an open or unclosed state. In addition, it is easy for those skilled in the art to understand that the first direction can be the clockwise direction or the counterclockwise direction, and the second direction is the direction opposite to the first direction.

[0036] Advantageously, a gasket (not shown) can be provided at the edge of the air damper 200, so as to enhance the effect of the air damper 200 closing the first opening 131, the second opening 132 and the third opening 133, as well as the pipeline of the suction pipe 100, prevent air leakage, and reduce the vibration when the air damper 200 performs the closing and blocking actions. The gasket can be made of flexible materials such as rubber, silica gel, fabric or foam, and the present application does not limit this. It is easy for those skilled in the art to understand that when a gasket is provided at the edge of the air damper 200, the thickness at the edge of the air damper 200 may be increased. In this case, the height of the third opening 133 can be greater than the thickness of the air damper 200 to make it cooperate tightly with the air damper 200. It should be understood that the third opening 133 can be either not connected to the first opening 131 and / or the second opening 132, or connected to the first opening 131 and / or the second opening 132, and the present application does not limit this.

[0037] Refer to the attached Figure 4 and the attached Figure 5, in one embodiment, the main pipe wall 130 may be flat, the air damper 200 may include a first door body 210 and a second door body 220, and the first door body 210 and the second door body 220 may be parallel to each other and connected to form a stepped shape. The vertical distance between the first door body 210 and the second door body 220 may be equal to the thickness of the main pipe wall 130 so that the air damper 200 can close the first opening 131 and the second opening 132 when rotating in the first direction. The rotating shaft 140 may be connected to the first door body 210 or the second door body 220. When a gasket is provided at the edge of the air damper 200, the vertical distance between the first door body 210 and the second door body 220 may also be greater than the thickness of the main pipe wall 130. Refer to the attached Figure 6 and the attached Figure 7 , alternatively, the air damper 200 may further include a third door body 230, the third door body 230 protrudes or depresses relative to the first door body 210 and the second door body 220, the first door body 210 and the second door body 220 are parallel to each other and connected by the third door body 230 to form a stepped shape, and the rotating shaft 140 may be connected to the third door body 230. The vertical distance between the first door body 210 and the second door body 220 may be greater than or equal to the thickness of the main pipe wall 130.

[0038] In one embodiment, the air damper 200 may be connected to the side wall of the suction pipe 100 through the rotating shaft 140, that is, the pipe walls located on both sides of the main pipe wall 130. In another embodiment, the air damper 200 may also be connected to the main pipe wall 130 through the rotating shaft, for example, between the first opening 131 and the third opening 133, or between the second opening 132 and the third opening 133, and connected to the main pipe wall 130. The rotating shaft 140 may be provided with a card slot so that the air damper 200 can be embedded in the card slot. The air damper 200 may be connected to the rotating shaft 140 by rivets, screws or bolts. In one embodiment, the air damper 200 is preferably connected to the rotating shaft 140 by rivets, such as press rivets, to facilitate processing and enhance the connection strength between the air damper 200 and the rotating shaft 140.

[0039] When the front edge of the carton processing machine needs to convey cardboard, the air damper 200 rotates to the first position in the first direction to close the first opening 131, the second opening 132 and the third opening 133, so as to form a closed ventilation duct between the front edge port 110 and the fan port 120, so that the fan can suck out the air at the front edge through the suction pipe 100, thereby forming a negative pressure at the front edge. When it is necessary to stop conveying cardboard, the fan can be turned off and the air damper can be started, so that the air damper 200 rotates to the second position in the second direction to block the suction pipe 100 and open the first opening 131, the second opening 132 and the third opening 133. At this time, air enters the front edge through the first opening 131 to make the front edge return to normal pressure, and when the fan continues to rotate due to inertia, the air can enter the inner cavity of the suction pipe 100 through the second opening 132 and flow to the fan, preventing the fan from rotating to form a negative pressure in the suction pipe 100.

[0040] Referring to the attached Figure 1 and the attached Figure 2 and the attached Figure 3 , the front edge air suction device 10 of the carton processing machine may further include a power device 300. The power device 300 is connected to the rotating shaft 140 through a transmission device 310, so as to be able to drive the rotating shaft 140 to rotate. The power device 300 may be a motor, or may be a cylinder or a hydraulic cylinder. It should be understood that the power device 300 may be any device capable of driving the rotating shaft 140 to rotate, and the present application does not limit this. The transmission device 310 may be a gear set or a coupling. Advantageously, the power device 300 is connected to the air suction pipe 100 through a bracket 320, so that the power device 300 can be stably connected to the air suction pipe 100 without directly contacting the air suction pipe 100, thereby avoiding the air suction pipe 100 colliding with the power device 300 due to vibration during the working state and generating noise. The bracket 320 may be connected to the air suction pipe 100 by welding or screwing, and the power device 300 may be detachably connected to the bracket 320 by, for example, screwing or clamping or a manner well known in the art, so as to be replaced when the power device 300 fails. Advantageously, the transmission device 310 is arranged in the bracket 320, so as to make full use of the installation space and make the appearance of the front edge air suction device of the carton processing machine more concise.

[0041] Referring to the attached Figure 1 and the attached Figure 3 , a front edge connecting portion 150 may be arranged around the front edge port 110 for connecting with the front edge of the carton processing machine. The front edge connecting portion 150 may be a flange or a snap structure for connecting with the front edge by screwing or clamping. A fan connecting portion 160 may be arranged around the fan port 120 for connecting with the fan. The fan connecting portion 160 may be a flange tube for connecting with the pipe connecting the fan through a clamp. The fan connecting portion 160 may also be a flange for connecting with the pipe connecting the fan by screwing.

[0042] Referring to the attached Figure 8, a baffle 170 may be provided on the inner wall of the suction air duct 100. The baffle 170 may be vertically arranged relative to the inner wall of the suction air duct 100. When the air damper 200 rotates in the second direction to a second position sufficient to block the suction air duct 100, it can contact the baffle 170, enabling the air damper 200 to stably maintain this position, thereby preventing the air damper 200 from failing to block the suction air duct 100 due to excessive rotation amplitude. Advantageously, the baffle 170 may be continuously arranged along the circumferential direction of the inner wall of the suction air duct 100. Thus, not only can the baffle 170 play a role in limiting the position of the air damper 200, but also it can block the possible gaps between the air damper 200 and the inner wall of the suction air duct 100, thereby enhancing the blocking effect of the air damper 200. Advantageously, a buffer material, such as rubber, silica gel, fabric, or foam, may be laid on the surface of the baffle 170 to reduce the impact of the air damper 200 on the baffle 170.

[0043] The present application also provides a carton processing machine, which includes a leading-edge air suction device for a carton processing machine according to the principle of the present application, and the leading-edge air suction device for a carton processing machine is connected to the leading-edge part of the carton processing machine.

[0044] The leading-edge air suction device for a carton processing machine and the carton processing machine according to the principle of the present application can form a closed air suction channel by rotating the air damper when it is necessary to convey cardboard, thereby creating a negative pressure at the leading edge of the carton processing machine. When it is not necessary to convey cardboard, the air suction channel is blocked, the air suction is quickly blocked, and external air enters the leading edge to restore normal pressure, so that the leading edge can immediately stop conveying cardboard. At the same time, when using the leading-edge air suction device for a carton processing machine and the carton processing machine according to the principle of the present application, the fan can be turned off when it is not necessary to convey cardboard, thereby reducing energy consumption and extending the service life of the fan.

[0045] Although at least one exemplary embodiment has been described in the foregoing detailed description, it should be understood that there are numerous variations. It should also be understood that one exemplary embodiment or multiple exemplary embodiments described herein are merely examples and are not intended to limit the scope, applicability, or configuration of the present application in any way. On the contrary, the foregoing detailed description will provide those skilled in the art with a convenient guide for implementing one exemplary embodiment or multiple exemplary embodiments. It should be understood that various changes, variations, or alterations can be made to the functions and arrangements of the elements without departing from the scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A front edge suction device for a carton processing machine, characterized in that: The front edge air suction device of the carton processing machine includes an air suction pipe and an air door, wherein: The air suction duct comprises a leading edge port, a fan port and a main pipe wall, the main pipe wall is provided with a first opening, a second opening and a third opening, and the third opening is located between the first opening and the second opening, and the first opening and the third opening are located between the leading edge port and the fan port; Wherein, the air door passes through the third opening and is connected to the air suction pipe through a rotating shaft; And wherein, the damper can close the first opening, the second opening and the third opening when in the first position, and can block the pipeline between the leading edge port and the fan port when in the second position.

2. The front edge suction device of the carton processing machine according to claim 1, characterized in that: The main pipe wall includes a first pipe wall and a second pipe wall, the first pipe wall and the second pipe wall are parallel and form a step shape, the vertical distance between the first pipe wall and the second pipe wall is greater than or equal to the thickness of the damper, and the first opening is set in the first pipe wall, and the second opening is set in the second pipe wall.

3. The front edge suction device of the carton processing machine according to claim 1, characterized in that: The main pipe wall is in the shape of a flat plate, and the air door includes a first door body and a second door body, the first door body and the second door body are parallel to each other and connected to form a step shape, and the vertical distance between the first door body and the second door body is greater than or equal to the thickness of the main pipe wall.

4. The front edge suction device of a carton processing machine according to claim 2 or 3, characterized in that: The first opening is in communication with the third opening, and / or the second opening is in communication with the third opening.

5. The front edge suction device of a carton processing machine according to claim 2 or 3, characterized in that: The front edge suction device of the carton processing machine also includes a power device, and the power device is connected to the rotating shaft through a transmission device, so as to drive the rotating shaft to rotate.

6. The front edge suction device of a carton processing machine as claimed in claim 5, characterized in that: A front edge connecting portion is arranged around the front edge port so as to be connected with the front edge of the carton processing machine.

7. The front edge suction device of a carton processing machine as claimed in claim 6, characterized in that: A fan connection portion is arranged around the fan port so as to be connected to the fan.

8. The front edge suction device of a carton processing machine as claimed in claim 7, characterized in that: The inner wall of the air suction pipe is provided with a baffle, and the baffle is perpendicular to the inner wall of the air suction pipe.

9. The front edge suction device of a carton processing machine as claimed in claim 8, characterized in that: A sealing pad is arranged on the edge of the damper.

10. The front edge suction device of a carton processing machine according to claim 9, characterized in that: The power device is a motor, a cylinder or a hydraulic cylinder.

11. The front edge suction device of a carton processing machine according to claim 9, characterized in that: The front edge connection portion is a flange or a snap-fit ​​structure.

12. The front edge suction device of a carton processing machine according to claim 9, characterized in that: The transmission device is a coupling or a gear set.

13. The front edge suction device of a carton processing machine according to claim 9, characterized in that: The fan connecting part is a flange pipe or a flange plate.

14. The front edge suction device of a carton processing machine according to claim 9, characterized in that: The damper is connected to the rotating shaft via rivets.

15. The front edge suction device of a carton processing machine according to claim 9, characterized in that: The power device is connected with the air suction pipe through a bracket.

16. A carton processing machine, characterized in that: The carton processing machine comprises a carton processing machine front edge suction device as described in any one of claims 1-15.

Images