阅读说明：本技术 同步带传送结构与加工设备 (Synchronous belt conveying structure and processing equipment ) 是由 刘义 刘文峰 李晨瑶 于 2020-06-11 设计创作，主要内容包括：本发明公开一种同步带传送结构与加工设备,其中,一种同步带传送结构,包括传送平台,所述传送平台具有支撑面,所述支撑面开设有连通孔,所述传送平台内设有与所述连通孔连通的气流通道；传送机构,所述传送机构包括同步带,所述支撑面支撑于所述同步带的下表面,所述同步带背离所述支撑面的表面设有若干通气孔,若干所述通气孔沿所述同步带的长度方向间隔设置,且位于所述支撑面上方的多个所述通气孔中,至少一所述通气孔通过所述连通孔连通于所述气流通道；吸风单元,所述吸风单元连通于所述气流通道。可以理解的,本发明的技术方案能够实现瓦楞纸板在同步带上的紧密贴附,避免瓦楞纸板在同步带上发生偏移。(The invention discloses a synchronous belt conveying structure and processing equipment, wherein the synchronous belt conveying structure comprises a conveying platform, the conveying platform is provided with a supporting surface, the supporting surface is provided with a communicating hole, and an airflow channel communicated with the communicating hole is arranged in the conveying platform; the conveying mechanism comprises a synchronous belt, the supporting surface is supported on the lower surface of the synchronous belt, a plurality of vent holes are formed in the surface, away from the supporting surface, of the synchronous belt, the vent holes are arranged at intervals along the length direction of the synchronous belt and located in the vent holes above the supporting surface, and at least one vent hole is communicated with the airflow channel through the communication hole; and the air suction unit is communicated with the air flow channel. The corrugated board synchronous belt can be tightly attached to the synchronous belt, and the corrugated board is prevented from deviating from the synchronous belt.)

1. A synchronous belt conveying structure, comprising:

the conveying platform is provided with a supporting surface, the supporting surface is provided with a communicating hole, and an airflow channel communicated with the communicating hole is arranged in the conveying platform;

the conveying mechanism comprises a synchronous belt, the supporting surface is supported on the lower surface of the synchronous belt, a plurality of vent holes are formed in the surface, away from the supporting surface, of the synchronous belt, the vent holes are arranged at intervals along the length direction of the synchronous belt and located in the vent holes above the supporting surface, and at least one vent hole is communicated with the airflow channel through the communication hole;

and the air suction unit is communicated with the air flow channel.

2. The synchronous belt conveying structure as claimed in claim 1, wherein the conveying platform comprises a mounting plate on which the support block having the support surface is provided, and a support block comprising an upper belt body located above the driving wheel and the driven wheel and a lower belt body located below the driving wheel and the driven wheel, the support block being provided between the upper belt body and the lower belt body, the support surface of the support block being supported on a lower surface of the upper belt body, and the air flow passage being formed inside the support block.

3. The timing belt conveying structure of claim 2, wherein the support block is extended along a length direction of the upper belt body.

4. The synchronous belt conveying structure of claim 3, wherein the air flow passage extends in a length direction of the supporting block, and the communication hole extends in the length direction of the air flow passage.

5. The synchronous belt conveying structure according to claim 4, wherein a projection of the vent hole communicating with the communication hole on the support surface is located within a range of the communication hole.

6. The synchronous belt transmission structure of claim 2, wherein the air suction unit comprises a suction fan and a bellows, the bellows has an air inlet and an air outlet arranged at intervals, the air flow channel is communicated with the air inlet of the bellows, and the air outlet of the bellows is communicated with the suction fan.

7. The synchronous belt conveying structure as claimed in claim 2, wherein the conveying platform comprises a plurality of the mounting plates and a plurality of the supporting blocks, the mounting plates are arranged side by side, each mounting plate is provided with one of the supporting blocks, the synchronous belt conveying structure comprises a plurality of the conveying mechanisms, each supporting block is supported on a lower surface of a synchronous belt of one of the conveying mechanisms, and an air flow passage formed inside each supporting block is communicated with the air suction unit.

8. The synchronous belt conveying structure of claim 7, wherein the suction fan comprises a suction fan and a plurality of bellows, the bellows having an inlet and an outlet spaced apart from each other, each of the air flow passages communicating with the inlet of one of the bellows, and the outlet of each of the bellows communicating with the suction fan.

9. The synchronous belt conveying structure as claimed in claim 8, wherein the suction fan comprises a suction fan body and a suction duct, the suction duct extends along a plurality of the mounting plates side by side, one end of the suction duct is connected to the suction fan, the suction duct is provided with a plurality of communication ports arranged at intervals along the length direction thereof, and the air outlet of each air box is connected to one of the communication ports.

10. A processing apparatus comprising a housing and the synchronous belt conveying structure of any one of claims 1 to 9, the synchronous belt conveying structure being mounted to the housing.

Technical Field

The invention relates to the technical field of corrugated board conveying, in particular to a synchronous belt conveying structure and processing equipment.

Background

In the preparation process of the corrugated case, the corrugated board sequentially passes through a paper feeding part, a printing part, a slotting part and a die cutting part of processing equipment, so that the corrugated board after being folded and processed can be formed into the corrugated case. In order to realize the automatic processing of the corrugated board, a synchronous belt is usually installed in a processing device, so that the corrugated board is transmitted in the processing device through the installed synchronous belt and is automatically processed, however, the corrugated board cannot be tightly attached by the synchronous belt, so that the corrugated board is easy to deviate on the synchronous belt to influence the processing precision of the subsequent corrugated board.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to provide a synchronous belt conveying structure, which aims to realize the tight attachment of a corrugated board on a synchronous belt and avoid the deviation of the corrugated board on the synchronous belt.

In order to achieve the above object, the present invention provides a synchronous belt conveying structure, including:

the conveying platform is provided with a supporting surface, the supporting surface is provided with a communicating hole, and an airflow channel communicated with the communicating hole is arranged in the conveying platform;

the conveying mechanism comprises a synchronous belt, the supporting surface is supported on the lower surface of the synchronous belt, a plurality of vent holes are formed in the surface, away from the supporting surface, of the synchronous belt, the vent holes are arranged at intervals along the length direction of the synchronous belt and located in the vent holes above the supporting surface, and at least one vent hole is communicated with the airflow channel through the communication hole;

and the air suction unit is communicated with the air flow channel.

Optionally, the conveying platform includes an installation plate and a supporting block, the installation plate is provided with the supporting block, the supporting block has the supporting surface, the synchronous belt includes an upper belt body located on the upper portion of the driving wheel and the driven wheel and a lower belt body located on the lower portion of the driving wheel and the driven wheel, the supporting block is located between the upper belt body and the lower belt body, the supporting surface of the supporting block is supported on the lower surface of the upper belt body, and the supporting block is internally formed with the airflow channel.

Optionally, the supporting block extends along the length direction of the upper belt body.

Optionally, the airflow channel extends along the length direction of the supporting block, and the communication hole extends along the length direction of the airflow channel.

Optionally, a projection of the vent hole communicating with the communication hole on the support surface is located within a range of the communication hole.

Optionally, the air suction unit includes a suction fan and an air box, the air box has an air inlet and an air outlet which are arranged at intervals, the air flow channel is communicated with the air inlet of the air box, and the air outlet of the air box is communicated with the suction fan.

Optionally, the conveying platform includes a plurality of the mounting plates and a plurality of the supporting blocks, the mounting plates are arranged side by side, one supporting block is arranged on each mounting plate, the synchronous belt conveying structure includes a plurality of the conveying mechanisms, each supporting block is supported on the lower surface of a synchronous belt of one conveying mechanism, and an air flow channel formed inside each supporting block is communicated with the air suction unit.

Optionally, the suction fan includes suction fan and a plurality of bellows, the bellows has air intake and the air outlet of interval setting, each airflow channel communicate in one the air intake of bellows, each the air outlet of bellows communicate in the suction fan.

Optionally, the suction fan includes suction fan body and aspiration channel, the aspiration channel is along a plurality of the direction extension setting side by side of mounting panel, the one end of aspiration channel communicate in the suction fan, the aspiration channel is equipped with the intercommunication mouth that a plurality of intervals set up along its length direction, each the air outlet of bellows communicates in one the intercommunication mouth.

The invention further provides processing equipment which comprises a shell and the synchronous belt conveying structure, wherein the synchronous belt conveying structure is arranged on the shell.

According to the technical scheme, the supporting surface is provided with the communicating hole, the conveying platform is provided with the airflow channel communicated with the communicating hole, the supporting surface is supported on the lower surface of the synchronous belt, the surface of the synchronous belt, which is far away from the supporting surface, is provided with a plurality of air holes, the air holes are arranged in the plurality of air holes above the supporting surface, at least one air hole is communicated with the airflow channel through the communicating hole, and the air suction unit is communicated with the airflow channel. Namely, the technical scheme of the invention can realize the tight attachment of the corrugated board on the synchronous belt and avoid the corrugated board from deviating on the synchronous belt.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a processing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the timing belt transport structure of FIG. 1;

FIG. 3 is a schematic diagram of the conveying structure of the synchronous belt of FIG. 2;

FIG. 4 is a schematic view of the structure on the mounting plate of FIG. 3;

fig. 5 is a schematic structural diagram of the installation plate in fig. 4 without the synchronous belt.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

The invention provides a synchronous belt conveying structure, which aims to realize the tight attachment of a corrugated board on a synchronous belt and avoid the deviation of the corrugated board on a conveying mechanism.

As shown in fig. 1 to 5, in an embodiment of the present invention, a synchronous belt conveying structure includes:

the conveying platform 10, the conveying platform 10 has a supporting surface 131, the supporting surface 131 is opened with a communication hole 13a, and an airflow channel 10a communicated with the communication hole 13a is arranged in the conveying platform 10;

the conveying mechanism 30 comprises a timing belt 31, the supporting surface 131 is supported on the lower surface of the timing belt 31, a plurality of vent holes 31a are formed in the surface of the timing belt 31, which is away from the supporting surface 131, the vent holes 31a are arranged at intervals along the length direction of the timing belt 31 and are located in the vent holes 31a above the supporting surface 131, and at least one vent hole 31a is communicated with the airflow channel 10a through the communication hole 13 a;

and the air suction unit 50 is communicated with the air flow channel 10 a.

According to the technical scheme of the invention, a communication hole 13a is formed in a supporting surface 131, an airflow channel 10a communicated with the communication hole 13a is arranged on a conveying platform 10, the supporting surface 131 is supported on the lower surface of a synchronous belt 31, a plurality of vent holes 31a are formed in the surface of the synchronous belt 31, which is far away from the supporting surface 131, among a plurality of vent holes 31a positioned above the supporting surface 131, at least one vent hole 31a is communicated with the airflow channel 10a through the communication hole 13a, and an air suction unit 50 is communicated with the airflow channel 10a, so that when a corrugated board 200 is placed on the synchronous belt 31, airflow is transmitted along the communication hole 13a of the vent hole 31a of the synchronous belt 31 to the lower direction air suction unit 50 through the airflow channel 10a, so that the surface of the synchronous belt 31 forms negative pressure, and the corrugated board 200 is influenced by the, thereby allowing the corrugated cardboard 200 to be closely attached to the timing belt 31 thereunder. That is, the technical solution of the present invention can realize the tight attachment of the corrugated cardboard 200 on the timing belt 31, and prevent the corrugated cardboard 200 from deviating on the timing belt 31.

It should be noted that the conveying platform 10 may include a supporting plate, a supporting block, and a supporting seat, as long as it has a supporting surface 131 capable of supporting the lower surface of the timing belt 31, such that a communication hole 13a is formed through the supporting surface 131, and at least one of the plurality of air holes 31a located above the supporting surface 131 is communicated with the airflow channel 10a through the communication hole 13a, of course, the number of the plurality of air holes 31a is smaller than the number of the plurality of air holes 31a, and the plurality of air holes 31a are only a part of the plurality of air holes 31a, such that the airflow can flow from the communication hole 13a below the air hole 31a to the suction unit 50 through the airflow channel 10a, and thus the surface of the timing belt 31 where the air holes 31a are formed generates negative pressure, the corrugated board 200 on the synchronous belt 31 is ensured to be closely absorbed, and the problem that the corrugated board 200 is easy to deviate in the conveying mechanism 30 is solved. In addition, the air suction unit 50 may be a vacuum generator or a suction fan, and the embodiment of the present invention is not limited thereto, and the above two different air suction units 50 are within the protection scope of the embodiment of the present invention.

As shown in fig. 1 to 5, in an embodiment of the present invention, the conveying platform 10 includes a mounting plate 11 and a supporting block 13, the mounting plate 11 is provided with the supporting block 13, the supporting block 13 has the supporting surface 131, the timing belt 31 includes an upper belt body 311 located above the driving wheel 33 and the driven wheel 35 and a lower belt body 313 located below the driving wheel 33 and the driven wheel 35, the supporting block 13 is disposed between the upper belt body 311 and the lower belt body 313, the supporting surface 131 of the supporting block 13 is supported on a lower surface of the upper belt body 311, and the supporting block 13 is internally formed with the air flow channel 10 a. In the embodiment of the present invention, the supporting block 13 is supported on the timing belt 31, so that the supporting block 13 supports the timing belt 31, and the stable transmission of the corrugated board 300 by the transmission belt is ensured, and the supporting surface 131 is formed on the surface of the supporting block 13 facing the lower surface of the timing belt 31, so that when the corrugated board 300 is placed on the surface of the timing belt 31, the vent holes 31a on the surface of the timing belt 31 are communicated with the communication holes 13a, so that the vent holes 31a and the communication holes 13a are communicated, so that the air flow is transmitted to the communication holes 13a along the vent holes 31a and flows to the air suction unit 50 through the air flow channel 10a, thereby ensuring that the corrugated board 300 placed on the timing.

As shown in fig. 1 to 5, in an embodiment of the present invention, the supporting block 13 extends along a length direction of the upper band 311. It should be noted that, in the embodiment of the present invention, the supporting block 13 is arranged to extend along the length direction of the upper belt body 311, so that on one hand, the supporting function of the supporting block 13 on the synchronous belt 31 is increased, and the stable transmission of the corrugated board 300 by the synchronous belt 31 is ensured; on the other hand, the strip-shaped support block 13 forms the airflow channel 10a extending along the length direction of the upper belt body 311, so that the airflow is ensured to smoothly flow along the vent hole 31a to the communication hole 13a through the airflow channel 10a to the air suction unit 50, the negative pressure effect of the timing belt 31 is ensured, and the corrugated board 300 is tightly attached to the timing belt 31.

As shown in fig. 1 to 5, in an embodiment of the present invention, the airflow passage 10a extends along a length direction of the supporting block 13, and the communication hole 13a extends along the length direction of the airflow passage 10 a. It should be noted that, the surface of the timing belt 31 is provided with a plurality of vent holes 31a arranged at intervals along the length direction thereof, on this basis, the airflow channel 10a of the embodiment of the present invention extends along the length direction of the supporting block 13, and the communication holes 13a extend along the length direction of the airflow channel 10a, so that more vent holes 31a are communicated with the communication holes 13a, and the airflow flowing into the communication holes 13a simultaneously flows to the airflow channel 10a in a large amount, so that when the corrugated cardboard 300 is placed on the supporting surface 131, the corrugated cardboard 300 is subjected to the negative pressure effect of a plurality of positions of the timing belt 31, so that the corrugated cardboard 300 is adsorbed by the timing belt 31 at a plurality of positions, thereby further improving the stability of the corrugated cardboard 300 in conveying on the timing belt.

As shown in fig. 1 to 5, in an embodiment of the present invention, a projection of the vent hole 31a communicating with the communication hole 13a on the supporting surface 131 is located within a range of the communication hole 13 a. In the embodiment of the invention, the projection of the vent hole 31a communicated with the communicating hole 13a on the supporting surface 131 is arranged in the range of the communicating hole 13a, so that the airflow smoothly flows from the vent hole 31a to the communicating hole 13a, the negative pressure effect of the synchronous belt 31 is ensured, the adsorption force of the corrugated board 300 on the synchronous belt 31 is enhanced, and the transmission stability of the corrugated board 300 on the synchronous belt 31 is improved.

As shown in fig. 1 to 5, in an embodiment of the present invention, the air suction unit 50 includes a suction fan 51 and an air box 53, the air box 53 has an air inlet and an air outlet arranged at intervals, the air flow channel 10a is communicated with the air inlet of the air box 53, and the air outlet of the air box 53 is communicated with the suction fan 51. In the embodiment of the present invention, the air in the air box 53 is sucked by the suction fan 51, so that a negative pressure is formed in the air box 53, and thus, the air flows from the air vent 31a to the air box 53 along the air flow channel 10a from the air inlet of the air box 53 through the communication hole 13a, and thus, the air flow transmitted from the air vent 31a to the air vent 31a below the air vent 31a is formed, thereby forming the negative pressure on the surface of the timing belt 31.

As shown in fig. 1 to 5, in an embodiment of the present invention, the conveying platform 10 includes a plurality of mounting plates 11 and a plurality of supporting blocks 13, the mounting plates 11 are arranged side by side, each mounting plate 11 is provided with one supporting block 13, the synchronous belt conveying structure 100 includes a plurality of conveying mechanisms 30, each supporting block 13 is supported on a lower surface of a synchronous belt 31 of one conveying mechanism 30, and an air flow channel 10a formed inside each supporting block 13 is communicated with the air suction unit 50. The conveying platform 10 of the embodiment of the invention is provided with the plurality of mounting plates 11, so that each mounting plate 11 can be provided with one supporting block 13, and the supporting surface 131 of each supporting block 13 is provided with the synchronous belt 31 of the conveying mechanism 30 matched with the supporting surface, so that a plurality of air flow channels 10a are formed, each air flow channel 10a is communicated with the air suction unit 50, the synchronous belt conveying structure 100 can simultaneously drive a plurality of corrugated boards 300, and when the synchronous belt conveying structure 100 is applied to the processing equipment 1000, the processing efficiency of the processing equipment 1000 on the corrugated boards 300 is undoubtedly accelerated. It should be noted that, the conveying platform 10 according to the embodiment of the present invention further includes a base 111, the base 111 is provided with a slide rail, the mounting plates 11 are vertically arranged on the base 111 at intervals, the bottom edges of the mounting plates 11 facing the base 111 are provided with slide grooves, and the base 111 is slidably connected to the mounting plates 11 through the cooperation of the slide rail and the slide grooves, so that the mounting plates 11 slide relative to the base 111, thereby adjusting a gap between two adjacent mounting plates 11, facilitating conveying of corrugated boards 300 with different widths, and improving the adaptability of the synchronous belt conveying structure 100.

As shown in fig. 1 to 5, in an embodiment of the present invention, the suction fan 50 includes a suction fan 51 and a plurality of wind boxes 53, the wind boxes 53 have spaced wind inlets and wind outlets, each of the airflow channels 10a is connected to a wind inlet of one of the wind boxes 53, and a wind outlet of each of the wind boxes 53 is connected to the suction fan 51. In the embodiment of the invention, the air in the air box 53 is sucked by the suction fan 51, so that negative pressure is formed in the air box 53, and thus, air flows into the air box 53 from the air inlet of the air box 53 from the air vent 31a to the communication hole 13a along the air flow channel 10a, so that air flow transmitted to the communication hole 13a below the air vent 31a is formed, and thus, when the corrugated board 300 is placed on the synchronous belt 31, the corrugated board 300 is tightly attached to the synchronous belt 31 below, and the problem that the corrugated board 300 deviates on the synchronous belt 31 is solved. In addition, the air box 53 is arranged, so that the air suction effect of the air suction unit 50 is ensured while the number of the suction fans 51 is reduced, and the stable adsorption of the corrugated board 300 on the synchronous belt 31 is ensured.

As shown in fig. 1 to 5, in an embodiment of the present invention, the suction fan 51 includes a suction fan body 511 and a suction pipe 513, the suction pipe 513 extends along a direction in which the mounting plates 11 are arranged side by side, one end of the suction pipe 513 is connected to the suction fan 51, the suction pipe 513 is provided with a plurality of communication ports arranged at intervals along a length direction thereof, and an air outlet of each air box 53 is connected to one of the communication ports. In the embodiment of the invention, the plurality of communication ports are formed in the air suction pipe 513, so that air flow can simultaneously flow through the air suction pipe 513 from the plurality of air boxes 53 and then flow to the suction fan 51 through the air suction pipe 513, thereby ensuring the air suction effect of the suction fan 51 on the plurality of air boxes 53.

As shown in fig. 1 to 5, in an embodiment of the present invention, the transmission mechanism 30 includes a driving wheel 33, a driven wheel 35 and a steering wheel 37, the driving wheel 33, the driven wheel 35 and the steering wheel 37 are respectively mounted on the mounting plate 11, the driving wheel 33 and the steering wheel 37 are disposed at intervals along an extending direction of the supporting block 13, the supporting block 13 is disposed between the driving wheel 33 and the steering wheel 37, an installation height difference is formed between the driving wheel 33 and the driven wheel 35, the steering wheel 37 is disposed between the driving wheel 33 and the driven wheel 35 in the installation height difference direction, and the synchronous belt 31 is sleeved on the driving wheel 33, the driven wheel 35 and the steering wheel 37. When there is a mounting height difference between the driving pulley 33 and the driven pulley 35, the embodiment of the present invention adjusts the conveying direction of the belt by providing the steering pulley 37, so that when the corrugated cardboard 300 is placed on the timing belt 31, the corrugated cardboard 300 is horizontally and stably conveyed on the corrugated cardboard 300, thereby preventing the corrugated cardboard 300 from deviating.

As shown in fig. 1 to 5, in an embodiment of the present invention, the conveying mechanism 30 further includes a tension pulley 39, the tension pulley 39 is disposed between the driving pulley 33 and the driven pulley 35 in the direction of the installation height difference, and the tension pulley 39 is disposed outside the timing belt 31 and abuts against the timing belt 31. Certainly, in order to ensure the tightness of the synchronous belt 31 and enable the synchronous belt 31 to stably transmit, in the embodiment of the present invention, a tension pulley 39 is disposed, in the length direction of the synchronous belt 31, the tension pulley 39 is disposed between the driving pulley 33 and the driven pulley 35, the tension pulley 39 is disposed outside the synchronous belt 31 and abuts against the synchronous belt 31, so as to achieve an effect of adjusting the tension of the synchronous belt 31 between the driving pulley 33 and the driven pulley 35.

As shown in fig. 1 to 5, in an embodiment of the present invention, a first tooth structure is disposed on each of the driving pulley 33 and the driven pulley 35 in the circumferential direction, and a second tooth structure is disposed on a surface of the timing belt 31 facing the supporting block 13, where the first tooth structure is engaged with the second tooth structure. The first tooth-shaped structure and the second tooth-shaped structure can be in various shapes, for example, the cross sections of the first tooth-shaped structure and the second tooth-shaped structure can be triangular, trapezoidal, circular arc and the like, so that the contact area between the driving wheel 33 and the driven wheel 35 and the synchronous belt 31 is increased, the synchronous transmission effect of the synchronous belt 31 is ensured, and the problem that the synchronous belt 31 slips is avoided.

As shown in fig. 1 to 5, in an embodiment of the present invention, the present invention further provides a processing apparatus 1000, which includes a housing 200 and the above-mentioned synchronous belt conveying structure 100, wherein the synchronous belt conveying structure 100 is mounted on the housing 200. Of course, be equipped with the processing portion in the casing 200, the processing portion includes printing portion, fluting portion and die cutting portion etc. like this, when placing corrugated container board 300 in on the hold-in range 31, the air current along hold-in range 31's air vent 31a downwardly directed intercommunicating pore 13a and through airflow channel 10a transmission flow direction unit 50 that induced drafts to this makes the surface of hold-in range 31 form the negative pressure, and like this, corrugated container board 300 receives the influence of hold-in range 31 negative pressure, thereby makes corrugated container board 300 closely attached in the hold-in range 31 of below. Thus, when the corrugated board 300 is sequentially conveyed to the processing part through the synchronous belt 31, the processing part can accurately process the corrugated board on the synchronous belt 31, and the processing precision of the corrugated board 300 is ensured.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.