Parallel vacuum suction bellows
By using the independent and common air chamber control structure of the parallel vacuum adsorption air box, the problem of mutual constraints between the air zones of the traditional paper feeding air box is solved, realizing flexible combination of air zones and improving paper feeding efficiency, thus ensuring the stability and quality of paperboard conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI JINGSHAN LIGHT INDAL MACHINERY
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-10
AI Technical Summary
The air zone control methods of traditional paper feeding bellows are mutually restrictive, resulting in low paper feeding efficiency and difficulty in adapting to different paperboard specifications and production process requirements. This may lead to problems such as paperboard conveying deviation and paper jams, affecting processing quality and efficiency.
A parallel vacuum adsorption air box is adopted. Through the parallel control structure of independent air chambers and common air chambers, each air chamber can be controlled independently. Combined with the drive mechanism and air damper, flexible air zone combination is achieved to avoid mutual interference between air zones.
It enables flexible and independent control of the air zone, improves paper feeding efficiency and paperboard conveying stability, reduces offset and paper jam problems in paperboard processing, and enhances production quality and efficiency.
Smart Images

Figure CN224477659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard conveying technology, specifically to a parallel vacuum adsorption air box. Background Technology
[0002] In the paperboard processing and production process, the paper feeding bellows, as a key auxiliary equipment for paper feeding, plays an important role in the stability and efficiency of paperboard conveying. Currently, traditional paper feeding bellows for paperboard typically adopt a structure in which the left and right air zones and the central normally open air zone are connected in series.
[0003] Because the air zones are arranged in series, their operation has significant limitations. Specifically, the second air zone can only be activated if the first air zone is open, and the third air zone requires both the first and second air zones to be open simultaneously. This interdependent control method makes it difficult to flexibly adjust the working status of each air zone in actual operation. When facing diverse working scenarios such as different cardboard sizes, different conveying speeds, and different production process requirements, it is impossible to achieve the optimal combination of air zone operation under various working states. This not only reduces paper feeding efficiency but may also lead to problems such as cardboard deviation, wrinkles, or even paper jams during the cardboard conveying process due to poor air zone coordination. Consequently, it affects the overall quality and production efficiency of cardboard processing, increasing production costs and equipment maintenance costs. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a parallel vacuum adsorption air box.
[0005] The objective of this utility model is achieved through the following technical solution: a parallel vacuum adsorption air box, comprising a box body; the top of the box body is provided with multiple independent air chambers that are isolated from each other along the length direction; the bottom of the box body is provided with a common air chamber; each independent air chamber and the common air chamber are provided with a ventilation window; each ventilation window is provided with a movable air door; the parallel vacuum adsorption air box also includes multiple drive mechanisms for driving the movement of the air doors; each drive mechanism is provided in a one-to-one correspondence with each air door.
[0006] The present invention is further configured such that the parallel vacuum adsorption air box also includes an air duct; the air duct is connected to a common air cavity.
[0007] The present invention is further configured such that the independent air cavity is located at the top of the common air cavity; and the air duct is located at the bottom of the common air cavity.
[0008] The present invention is further configured such that a transmission wheel is rotatably provided on the top of each independent air cavity.
[0009] The present invention is further configured such that the independent air chamber is provided with a rotating shaft at one end of the ventilation window; and one end of the air damper is fixedly connected to the rotating shaft.
[0010] The present invention is further configured such that the driving mechanism includes a driving component and a swing arm; the driving component is rotatably mounted on the outer wall of the housing; one end of the swing arm is rotatably connected to the outer wall of the housing; the other end of the swing arm is rotatably connected to the output end of the driving component; and one end of the swing arm is fixedly connected to a rotating shaft.
[0011] The present invention is further provided with a bearing between one end of the swing arm and the outer wall of the box.
[0012] The present invention is further configured such that the driving component is a cylinder.
[0013] The present invention is further configured such that the independent air cavity includes a left independent air cavity located at one end of the housing and a right independent air cavity located at the other end of the housing; the housing has a normally open air cavity between the left independent air cavity and the right independent air cavity; the normally open air cavity is connected to the common air cavity.
[0014] The beneficial effects of this utility model are as follows: Each independent air cavity can be controlled by each drive mechanism to move each air door, thereby opening or blocking each ventilation window. It can be independently controlled to merge with the common air cavity, so that all independent air cavities form a parallel control structure. That is, each independent air cavity can be independently controlled to open or close according to actual needs, without being affected by adjacent air zones. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a diagram of the internal structure of this utility model;
[0017] Figure 3 yes Figure 2 A magnified view of part A in the middle;
[0018] The components are: 1. Housing; 11. Common air chamber; 12. Normally open air chamber; 13. Air duct; 2. Independent air chamber; 21. Left independent air chamber; 22. Right independent air chamber; 3. Ventilation window; 31. Air damper; 32. Rotating shaft; 41. Drive component; 42. Swing arm; 43. Bearing; 5. Transmission wheel. Detailed Implementation
[0019] The present invention will be further described in conjunction with the following embodiments.
[0020] Depend on Figures 1 to 3As can be seen, the parallel vacuum adsorption air box described in this embodiment includes a box body 1; the top of the box body 1 is provided with a plurality of mutually isolated independent air chambers 2 along the length direction; the bottom of the box body 1 is provided with a common air chamber 11; each independent air chamber 2 and the common air chamber 11 are provided with a ventilation window 3; each ventilation window 3 is movably provided with an air damper 31; the parallel vacuum adsorption air box also includes a plurality of driving mechanisms for driving the movement of the air dampers 31; each driving mechanism is provided in a one-to-one correspondence with each air damper 31.
[0021] Specifically, in the parallel vacuum adsorption air box described in this embodiment, each independent air chamber 2 can control the movement of each air door 31 through each driving mechanism, thereby opening or blocking each ventilation window 3. It can be independently controlled to merge with the common air chamber 11, so that all independent air chambers 2 form a parallel control structure, that is, each independent air chamber 2 can be independently controlled to open or close according to actual needs, without being affected by adjacent air zones.
[0022] This embodiment describes a parallel vacuum adsorption air box, which further includes an air duct 13; the air duct 13 is connected to a common air chamber 11. This configuration facilitates the introduction of negative pressure into the air duct 13, thereby achieving vacuum adsorption of the cardboard at the top of the independent air chamber 2.
[0023] In this embodiment, a parallel vacuum adsorption air box is described, wherein the independent air chamber 2 is located at the top of the common air chamber 11, and the air duct 13 is located at the bottom of the common air chamber 11. This design ensures smoother airflow between the independent air chamber 2, the common air chamber 11, and the air duct 13.
[0024] In this embodiment, a parallel vacuum adsorption air box is provided, with a transfer wheel 5 rotatably mounted on the top of each independent air chamber 2. This arrangement facilitates the conveying of cardboard from the top of the independent air chamber 2.
[0025] In this embodiment, a parallel vacuum adsorption air box is provided, wherein the independent air chamber 2 has a rotating shaft 32 rotatably mounted at one end of the ventilation window 3; one end of the air damper 31 is fixedly connected to the rotating shaft 32. In this embodiment, the driving mechanism of the parallel vacuum adsorption air box includes a driving component 41 and a swing arm 42; the driving component 41 is rotatably mounted on the outer wall of the box body 1; one end of the swing arm 42 is rotatably connected to the outer wall of the box body 1; the other end of the swing arm 42 is rotatably connected to the output end of the driving component 41; and one end of the swing arm 42 is fixedly connected to the rotating shaft 32.
[0026] Specifically, in the parallel vacuum adsorption air box described in this embodiment, when it is necessary to open or close the ventilation window 3 of one of the independent air chambers 2, the drive component 41 is activated, the output shaft of the drive component 41 extends and retracts, thereby causing the swing arm 42 to swing as a whole. During the swinging process of the swing arm 42, the rotating shaft 32 is driven to rotate, thereby causing the air door 31 to open or block the ventilation window 3.
[0027] In this embodiment, a parallel vacuum adsorption air box is provided with a bearing 43 between one end of the swing arm 42 and the outer wall of the box body 1. Specifically, the above arrangement makes the structure between the swing arm 42, the rotating shaft 32, and the box body 1 stable and reliable.
[0028] In this embodiment, a parallel vacuum adsorption air box is described, in which the driving component 41 is a cylinder. This configuration facilitates the rotation of the rotating shaft 32.
[0029] The parallel vacuum adsorption air box described in this embodiment includes a left independent air chamber 21 located at one end of the box body 1 and a right independent air chamber 22 located at the other end of the box body 1; the box body 1 has a normally open air chamber 12 between the left independent air chamber 21 and the right independent air chamber 22; the normally open air chamber 12 is connected to the common air chamber 11.
[0030] Specifically, in this embodiment, all the left independent air chambers 21 and right independent air chambers 22 form a parallel control structure, and the working states of each left independent air chamber 21 and right independent air chamber 22 will not affect each other. In addition, since each left independent air chamber 21 and right independent air chamber 22 can be controlled to open independently, the air zone control combination with the best adsorption and paper feeding effect for a certain production order can be found based on the actual test results in product production.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A parallel vacuum adsorption air box, characterized in that: The box includes a housing (1); the top of the housing (1) is provided with a plurality of independent air chambers (2) that are isolated from each other along the length direction; the bottom of the housing (1) is provided with a common air chamber (11); each independent air chamber (2) and the common air chamber (11) are provided with a ventilation window (3); each ventilation window (3) is provided with a damper (31); the parallel vacuum adsorption air box also includes a plurality of driving mechanisms for driving the dampers (31) to move; each driving mechanism is provided in correspondence with each damper (31).
2. The parallel vacuum adsorption air box according to claim 1, characterized in that: The parallel vacuum adsorption air box also includes an air duct (13); the air duct (13) is connected to the common air chamber (11).
3. The parallel vacuum adsorption air box according to claim 2, characterized in that: The independent air cavity (2) is located at the top of the common air cavity (11); the air duct (13) is located at the bottom of the common air cavity (11).
4. The parallel vacuum adsorption air box according to claim 1, characterized in that: Each independent air chamber (2) has a rotatable transmission wheel (5) at its top.
5. A parallel vacuum adsorption air box according to claim 1, characterized in that: The independent air chamber (2) has a rotating shaft (32) at one end of the ventilation window (3); one end of the damper (31) is fixedly connected to the rotating shaft (32).
6. A parallel vacuum adsorption air box according to claim 5, characterized in that: The driving mechanism includes a driving component (41) and a swing arm (42); the driving component (41) is rotatably mounted on the outer wall of the housing (1); one end of the swing arm (42) is rotatably connected to the outer wall of the housing (1); the other end of the swing arm (42) is rotatably connected to the output end of the driving component (41); and one end of the swing arm (42) is fixedly connected to the rotating shaft (32).
7. A parallel vacuum adsorption air box according to claim 6, characterized in that: A bearing (43) is provided between one end of the swing arm (42) and the outer wall of the housing (1).
8. A parallel vacuum adsorption air box according to claim 6, characterized in that: The driving component (41) is a cylinder.
9. A parallel vacuum adsorption air box according to claim 1, characterized in that: The independent air cavity (2) includes a left independent air cavity (21) located at one end of the housing (1) and a right independent air cavity (22) located at the other end of the housing (1); the housing (1) has a normally open air cavity (12) between the left independent air cavity (21) and the right independent air cavity (22); the normally open air cavity (12) is connected to the common air cavity (11).