Paper taking and feeding module, feeding system and cutting equipment

Abstract

The utility model relates to a paper taking and feeding module, a feeding system and cutting equipment, and the paper taking and feeding module comprises a negative pressure cavity provided with a negative pressure cavity and an adsorption surface, the adsorption surface is provided with a plurality of first air inlet holes penetrating into the negative pressure cavity from the outside, and the adsorption surface is further provided with second air inlet holes in the area outside the adsorption surface; the transmission belt is arranged on the outer surface of the negative pressure cavity in an attached mode, and a plurality of third air inlet holes corresponding to the first air inlet holes are formed in the rotation direction; the negative pressure generating device is communicated with the negative pressure cavity; the belt driving mechanism is in transmission connection with the transmission belt and used for driving the transmission belt to roll on the periphery of the negative pressure cavity; the air hole control assembly comprises a first air hole guide plate arranged in the negative pressure cavity and corresponding to the adsorption surface, a second air hole guide plate arranged corresponding to the second air inlet hole and a guide plate driving mechanism, and the guide plate driving mechanism is in transmission connection with the first air hole guide plate and the second air hole guide plate; the first air hole guide plate and the second air hole guide plate are driven by a guide plate driving mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging equipment technical field, and particularly relates to a paper taking and feeding module, a feeding system and a cutting equipment. BACKGROUND

[0002] The packaging box of small commodities is generally made of paper and plastic materials. The manufacturing process usually comprises the following steps: a pattern of the packaging box is printed on the surface of a plate by printing, a folding part of the packaging box is pressed to form a crease by using an indentation, and the excess part of the packaging box plate is cut by cutting, and then the packaging box is assembled to form the packaging box. The indentation process is performed on the back of the packaging box plate to be processed (i.e. the surface without the packaging box pattern) by a walking indentation and cutting multifunctional trolley, and the cutting process is performed on the front of the packaging box plate to be processed (i.e. the surface with the packaging box pattern) by the walking indentation and cutting multifunctional trolley.

[0003] In the cutting process, the material needs to be fed. The existing air suction type feeding device needs to work for a certain period of time before the exhaust fan of the suction assembly starts to reach the peak, so as to fill the negative pressure cavity with air. A certain period of time needs to be stopped to generate a stable air pressure. Otherwise, the material paper cannot be transported to the cutting area, resulting in equipment failure. In addition, when the paper is transported to the cutting area by the conveying belt, the exhaust fan cannot stop rotating immediately due to the rotational inertia. The suction cavity has residual negative pressure, and a certain period of time needs to be stopped before the cutting work can be performed. Otherwise, the paper will wrinkle, the cutting precision will be affected, and the subsequent work will be affected. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a paper taking and feeding module, a feeding system and a cutting equipment to solve the above technical problems.

[0005] In a first aspect, the present application provides a paper taking and feeding module, comprising:

[0006] A negative pressure cavity is provided with a negative pressure cavity and a suction surface, and the suction surface is provided with a plurality of first air inlet holes penetrating into the negative pressure cavity from the outside, and is also provided with a second air inlet hole in the area outside the suction surface;

[0007] A transmission belt is arranged on the outer surface of the negative pressure cavity, and a plurality of third air inlet holes corresponding to the first air inlet holes are arranged in the rotation direction of the transmission belt;

[0008] A negative pressure generating device is in communication with the negative pressure cavity;

[0009] A belt driving mechanism is in transmission connection with the transmission belt, and is used for driving the transmission belt to roll on the outer periphery of the negative pressure cavity; and

[0010] The orifice control assembly comprises a first orifice guide plate arranged in the negative pressure cavity and corresponding to the suction surface, a second orifice guide plate arranged corresponding to the second air inlet, and a guide plate driving mechanism, the guide plate driving mechanism is in driving connection with the first orifice guide plate and the second orifice guide plate respectively, and the first orifice guide plate and the second orifice guide plate are driven by the guide plate driving mechanism to alternately switch the orifice opening state.

[0011] Preferably, the guide plate driving mechanism comprises a connecting rod, a reset spring, a first connecting rod support, a second connecting rod support and a power device.

[0012] The first end of the connecting rod is arranged on the first connecting rod support through the reset spring, the second end of the connecting rod is arranged on the second connecting rod support and connected with the second orifice guide plate, and the rod body of the connecting rod is connected with the first orifice guide plate at the same time.

[0013] The power device is in driving connection with the second orifice guide plate.

[0014] Preferably, the power device is an electromagnetic driving device fixedly arranged in the negative pressure cavity, and an output shaft of the electromagnetic driving device is in driving connection with the second orifice guide plate.

[0015] Preferably, the first orifice guide plate comprises a first air guide hole arranged corresponding to the first air inlet and a first orifice sealing part arranged corresponding to the first air inlet, and the first orifice guide plate is driven by the guide plate driving mechanism to switch the positions of the first air guide hole and the first orifice sealing part to realize the conduction and sealing of the first air inlet.

[0016] Preferably, the first air inlets are arranged in an array or a row on the suction surface, and the first air guide holes are arranged in an array or a row on the first orifice guide plate, and each first air guide hole can cover at least one first air inlet.

[0017] Preferably, the second air inlets are arranged on one side of the negative pressure cavity, and the second orifice guide plate is driven by the guide plate driving mechanism to realize sealing by abutting against the wall surface of the negative pressure cavity or realize conduction by moving away from the wall surface of the negative pressure cavity.

[0018] Preferably, the sealing plate is arranged on the side corresponding to the second air inlets.

[0019] Preferably, the second orifice guide plate comprises a structure plate and a sealing plate, and the sealing plate is arranged on the sealing side.

[0020] In a second aspect, the utility model provides a feeding system, a storage assembly, a lifting mechanism, a paper separation mechanism and a paper taking and feeding module as any of the above.

[0021] The third aspect of the utility model discloses a cutting equipment simultaneously, including the feeding system of any one described above.

[0022] The above technical solution provided by the embodiment of the application has the following advantages compared with the prior art.

[0023] The paper taking and feeding module provided by the embodiment of the application is provided with the second air inlet hole in addition to the first air inlet hole, and is provided with the air hole control assembly, and the assembly includes the first air hole guide plate corresponding to the adsorption surface in the negative pressure cavity, the second air hole guide plate corresponding to the second air inlet hole, and the guide plate driving mechanism, the guide plate driving mechanism is respectively in transmission connection with the first air hole guide plate and the second air hole guide plate, and the first air hole guide plate and the second air hole guide plate are driven by the guide plate driving mechanism to alternately switch the air hole opening state. When the cutting equipment is in the starting state, the negative pressure generating device keeps the continuous working state, and by switching the first air inlet hole and the second air inlet hole, the paper taking and feeding module can be switched in real time, so that the problems of unstable air pressure during the starting process of the negative pressure generating device and residual air pressure during the stopping process are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present utility model, and together with the description, serve to explain the principles of the present utility model.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of not paying the creative labor.

[0026] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, and these exemplary illustrations do not constitute a limitation on the embodiments, and the elements with the same reference numerals in the drawings represent similar elements, and unless specially stated, the drawings do not constitute a proportional limitation.

[0027] Figure 1 The structural schematic diagram of the paper taking and feeding module provided by the embodiment of the present application is shown in the figure.

[0028] Figure 2 The structural exploded schematic diagram of the paper taking and feeding module provided by the embodiment of the present application is shown in the figure.

[0029] Figure 3 The result schematic diagram of the negative pressure cavity provided by the embodiment of the present application is shown in the figure.

[0030] Figure 4 The structural schematic diagram of the transmission belt provided by the embodiment of the present application is shown in the figure.

[0031] Figure 5 A structure schematic view of the air hole control assembly provided by the embodiment of the present application is shown in the figure;

[0032] Figure 6 A structure schematic view of the first air hole guide plate provided by the embodiment of the present application is shown in the figure;

[0033] Figure 7 A structure schematic view of the second air hole guide plate provided by the embodiment of the present application is shown in the figure;

[0034] Figure 8 A structure schematic view of the feeding system provided by the embodiment of the present application is shown in the figure;

[0035] Figure 9 A structure schematic view of the paper separating mechanism provided by the embodiment of the present application is shown in the figure.

[0036] Explanation of reference signs:

[0037] Negative pressure cavity 1, transmission belt 2, negative pressure generating device 3, belt driving mechanism 4, air hole control assembly 5, storage assembly 6, lifting mechanism 7, paper separating mechanism 8, paper taking and feeding module 9;

[0038] Negative pressure cavity 10, first air inlet hole 11, second air inlet hole 12, adsorption surface 17;

[0039] Third air inlet hole 23;

[0040] Main transmission shaft 41, driven shaft 42, power device 43;

[0041] First air hole guide plate 51, second air hole guide plate 52, guide plate driving device 54, connecting rod 541, return spring 542, first connecting rod support 543, second connecting rod support 544, power device 545, first air guide hole 511, first air hole sealing part 512, structure plate 521, sealing plate 522;

[0042] Separating fan 81, air duct 82. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. For the sake of simplicity, the description below refers to specific examples in which features can be present in some embodiments but not in others, which are disclosed and / or discussed in this document. It is understood that these are merely examples and are not intended to limit the present application. Also, the present application can be implemented in various forms, one of which is described below. Additionally, the present application can employ aspects of each of the examples for each of the issues identified below. Such repetition is for the sake of brevity and clarity.

[0045] For the sake of description, spatial relative terms can be used herein to describe the relative position relationship or movement of one element or feature with respect to another element or feature as shown in the drawings, such as "internal", "external", "inner side", "outer side", "under", "below", "above", "upper", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both the upper and lower positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0046] As Figures 1-2 The paper taking feeding module provided by the embodiment of the application is applied to the feeding system of a cutting device to provide continuous paper taking and feeding for the cutting device. Specifically, the paper taking feeding module comprises a negative pressure cavity 1, a transmission belt 2, a negative pressure generating device 3, a belt driving mechanism 4 and a gas hole control assembly 5.

[0047] In the embodiment, as Figure 3 shown, the negative pressure cavity 1 is provided with a negative pressure cavity 10 and an adsorption surface 17, the adsorption surface 17 is provided with a plurality of first air inlet holes 11 penetrating into the negative pressure cavity 10 from the outside, and is also provided with second air inlet holes 12 in the area outside the adsorption surface 17; the side of the negative pressure cavity 1 facing the paper to be taken is the adsorption surface 17, and the adsorption surface 17 is a plane, so that the transmission belt 2 is also a plane when it is on the adsorption surface 17, thereby better adsorbing the paper on the transmission belt 2. As a preferred structure, the negative pressure cavity 1 is in the form of a flat cuboid structure, which is beneficial to occupying a smaller space in the device and improving the space utilization rate.

[0048] In combination with Figure 1 , 2 andFigure 4 As shown, the transmission belt 2 is attached to the outer surface of the negative pressure cavity 1, and a plurality of third air inlets 23 corresponding to the first air inlets 11 are arranged in the rotation direction; as a preferred embodiment, the plurality of first air inlets 11 are arranged in an array on the adsorption surface 17, and the number of third air inlets 23 is greater than that of the first air inlets 11, and the third air inlets 23 are arranged on the entire length direction of the transmission belt 2, so that the transmission belt 2 can maintain normal air intake of the first air inlets 11 during operation, thereby maintaining the adsorption effect.

[0049] Please continue to refer to Figures 1-4 The negative pressure generating device 3 is in communication with the negative pressure cavity 1; the negative pressure generating device 3 forms negative pressure by driving air flow to flow out of the negative pressure cavity 10, and the negative pressure generating device 3 can be a fan or a vacuum pump, and the fan structure is adopted in the embodiment. Under the action of the negative pressure generating device 3, external air enters the negative pressure cavity 1 through the first air inlets 11 and the third air inlets 23, and when the paper approaches the adsorption surface 17, a low pressure is formed between the adsorption surface 17 and the paper under the driving of the air flow, so that the paper is attached to the surface of the transmission belt 2 of the adsorption surface 17, and the paper taking process is realized.

[0050] As Figure 1 shown, the belt driving mechanism 4 is in transmission connection with the transmission belt 2, and is used for driving the transmission belt 2 to roll on the outer periphery of the negative pressure cavity 1. The belt driving mechanism 4 includes a main transmission shaft 41, a driven shaft 42 and a belt power device 43 arranged on both sides of the negative pressure cavity 1, and the belt power device 43 is in transmission connection with the main transmission shaft 41 through another transmission belt (not shown in the figure). After the paper is attached to the surface of the transmission belt 2, the transmission belt 2 is driven to roll by the main transmission shaft 41, the driven shaft 42 and the belt power device 43, and the paper is moved and fed out.

[0051] As Figure 5 and in combination with Figure 3As shown, the air hole control assembly 5 includes a first air hole guide plate 51 arranged in the negative pressure cavity 10 corresponding to the suction surface 17, a second air hole guide plate 52 arranged corresponding to the second air inlet hole 12, and a guide plate driving mechanism 54, which is in driving connection with the first air hole guide plate 51 and the second air hole guide plate 52 respectively. The first air hole guide plate 51 and the second air hole guide plate 52 are driven by the guide plate driving mechanism 54 to alternately switch the air hole opening state. Specifically, in the standby state of the paper taking and feeding module, the first air inlet hole 11 is closed by the first air hole guide plate 51, and the second air inlet hole 12 is not closed by the second air hole guide plate 52. The air flow enters from the second air inlet hole 12 and is discharged by the upper negative pressure generating device 3. The negative pressure generating device 3 keeps a continuous working state, thereby ensuring that the internal pressure of the negative pressure cavity 1 is in a stable state. In the starting state, the second air hole guide plate 52 closes the second air inlet hole 12, and the first air inlet hole 11 is open. The air flow enters from the lower first air inlet hole 11 and is discharged by the upper negative pressure generating device 3. In this process, the closing of the second air inlet hole 12 and the opening of the first air inlet hole 11 are completed instantaneously. In the continuous working state of the negative pressure generating device 3, the starting can realize a stable negative pressure state, thereby ensuring the ability of sucking paper and preventing the paper from falling during the feeding process.

[0052] In this embodiment, the negative pressure generating device 3 keeps a continuous working state. By switching the first air inlet hole 11 and the second air inlet hole 12, the paper taking and feeding states of the paper taking and feeding module can be switched in real time, thereby avoiding the problems of unstable air pressure during the opening process of the negative pressure generating device 3 and residual air pressure during the stopping process.

[0053] As an optional embodiment, the guide plate driving mechanism 54 includes a connecting rod 541, a reset spring 542, a first connecting rod support 543, a second connecting rod support 544, and a power device 545. The first end of the connecting rod 541 is arranged on the first connecting rod support 543 through the reset spring 542. The second end of the connecting rod 541 is arranged on the second connecting rod support 544 and connected to the second air hole guide plate 52. The rod body of the connecting rod 541 is connected to the first air hole guide plate 51. The power device 545 is in driving connection with the second air hole guide plate 52. Since the second end and the rod body of the connecting rod 541 are connected to the first air hole guide plate 51 and the second air hole guide plate 52 respectively, when the power device 545 drives the second air hole guide plate 52 to move, the connecting rod 541 drives the first air hole guide plate 51 to move, thereby realizing the closing and opening states of the first air inlet hole 11 and the second air inlet hole 12 by the first air hole guide plate 51 and the second air hole guide plate 52. When the power device 545 does not work, the reset spring 542 resets the first air hole guide plate 51 and the second air hole guide plate 52 by elastic force, so as to exchange the closing and opening states.

[0054] Of course, as another alternative embodiment, the first air hole guide plate 51 and the second air hole guide plate 52 can also be driven by independent driving devices respectively, and can be accurately controlled by real-time control signals, so that the first air hole guide plate 51 and the second air hole guide plate 52 are adjusted at the same time, thereby ensuring the stability of the air pressure.

[0055] In the present embodiment, the power device 545 is an electromagnetic driving device fixedly arranged in the negative pressure cavity 1, and an output shaft of the electromagnetic driving device is in transmission connection with the second air hole guide plate 52. Of course, as an alternative embodiment, the power device 545 can also be other power devices such as a cylinder or a motor assembly.

[0056] In the present embodiment, as shown in Figure 6 The first air hole guide plate 51 includes a first air guide hole 511 corresponding to the first air inlet hole 11 and a first air hole sealing portion 512 corresponding to the first air inlet hole 11. The first air hole guide plate 51 is driven by the guide plate driving mechanism 54 to switch the positions of the first air guide hole 511 and the first air hole sealing portion 512, so as to realize the conduction and sealing of the first air inlet hole 11. When the first air hole guide plate 51 is driven to make the first air guide hole 511 correspond to the first air inlet hole 11, the first air inlet hole 11 can normally intake air; when the first air hole guide plate 51 is driven to cover the first air inlet hole 11 with the first air hole sealing portion 512, the first air inlet hole 11 is closed.

[0057] Further, the first air inlet holes 11 are arranged in an array or a row on the adsorption surface 17, and the first air guide holes 511 are arranged in an array or a row on the first air hole guide plate 51, and each first air guide hole 511 can cover at least one first air inlet hole 11.

[0058] In the present embodiment, as shown in Figure 7 , and as shown in Figures 1-4 , the second air inlet hole 12 is arranged at one end side of the negative pressure cavity 1, and the second air hole guide plate 52 is driven by the guide plate driving mechanism 54 to realize sealing by being attached to the wall surface of the negative pressure cavity 1 or realize conduction by being away from the wall surface of the negative pressure cavity 1. Specifically, by driving the second air hole guide plate 52, a gap is formed between the second air inlet hole 12 and the second air hole guide plate 52, and air can enter the second air inlet hole 12 and then enter the negative pressure cavity 10 through the gap.

[0059] Further, the second air hole guide plate 52 includes a structure plate 521 and a sealing plate 522, and the sealing plate 522 is arranged at one side corresponding to the second air inlet hole 12. The sealing plate 522 can be made of a material with good sealing performance, such as a plastic material, and the structure plate 521 can be made of a material with good structural strength, such as a metal material.

[0060] In the embodiment, as shown in Figure 1 The negative pressure generating device 3 is arranged on the same side of the negative pressure cavity 1 as the second air inlet hole 12. In this way, unstable air flow in the negative pressure cavity 10 during the period from the closure to the opening of the first air inlet hole 11 can be avoided as much as possible.

[0061] Based on the above, as Figure 8 The embodiment can also provide a feeding system, which comprises a storage assembly 6, a lifting mechanism 7, a paper separating mechanism 8, and a paper taking and feeding module 9. The paper taking and feeding module 9 is the paper taking and feeding module described in the above embodiment.

[0062] In the embodiment, the storage assembly 6 is used to store paper to be cut, and the lifting mechanism 7 is used to lift the storage assembly 6 so that the paper reaches a paper taking position of the paper taking and feeding module. The lifting height of the lifting mechanism 7 can be controlled by monitoring the position of the paper by a sensor.

[0063] In the embodiment, the paper separating mechanism 8 is arranged on the side corresponding to the discharge position of the storage assembly 6, and is used to separate the stacked paper at the discharge position when the paper taking and feeding module 9 takes the paper, so as to avoid the problem that two or more papers are taken at a time due to the adsorption force between the papers. The paper separating mechanism 8 is arranged on the side of the storage assembly 6 and corresponds to the direction in which the paper taking and feeding module 9 discharges the paper.

[0064] As a specific implementation, as shown in Figure 9 The paper separating mechanism 8 comprises a separating fan 81 and an air duct 82 connected to the air outlet direction of the separating fan 81. The air outlet of the air duct 82 is arranged on the side of the storage assembly 6 and is located at the discharge position of the paper taking and feeding module 9. Under the action of the air flow, the stacked paper is blown from the side, so that the stacked paper is blown up and separated. The uppermost paper is also lifted to a certain height under the action of the air flow, so as to be taken by the paper taking and feeding module.

[0065] Based on the above, the embodiment can also provide a cutting device, which adopts the feeding system in the above embodiment.

[0066] In the above embodiments, the description of each embodiment focuses on different aspects. The parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0067] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0068] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0069] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be connected, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0070] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0071] In the description of the application, reference to "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The illustrative examples described herein are not meant to be limiting to a particular embodiment or example of the application. Moreover, descriptions of a particular feature, structure, material, or characteristic are not meant to be a necessary characteristic of the application. Furthermore, one or more of the described features, structures, materials, or characteristics can be combined with other described features, structures, materials, or characteristics in any appropriate manner.

[0072] Obviously, various modifications and changes can be made to the present application without departing from the spirit and scope of the application. It is understood that such modifications and changes are intended to fall within the scope of the application and that this application is to be limited only by the appended claims, and their equivalents.

[0073] The above descriptions are specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A pick-and-place module, characterized by, The application relates to a negative pressure cavity (1) provided with a negative pressure cavity (10) and an adsorption surface (17), wherein the adsorption surface (17) is provided with a plurality of first air inlet holes (11) penetrating into the negative pressure cavity (10) from outside, and is also provided with second air inlet holes (12) in the area outside the adsorption surface (17); a transmission belt (2) is arranged on the outer surface of the negative pressure cavity (1) and is provided with a plurality of third air inlet holes (23) corresponding to the first air inlet holes (11) in the rotating direction; a negative pressure generating device (3) is in communication with the negative pressure cavity (1); a belt driving mechanism (4) is in transmission connection with the transmission belt (2) and is used for driving the transmission belt (2) to roll on the outer periphery of the negative pressure cavity (1); and an air hole control assembly (5) is arranged in the negative pressure cavity (10) and comprises a first air hole guide plate (51) corresponding to the adsorption surface (17), a second air hole guide plate (52) corresponding to the second air inlet holes (12) and a guide plate driving mechanism (54) in transmission connection with the first air hole guide plate (51) and the second air hole guide plate (52), wherein the first air hole guide plate (51) and the second air hole guide plate (52) are driven by the guide plate driving mechanism (54) to alternately switch the air hole opening state. The guide plate driving mechanism (54) comprises a connecting rod (541), a reset spring (542), a first connecting rod support (543), a second connecting rod support (544) and a power device (545). The first end of the connecting rod (541) is arranged on the first connecting rod support (543) through the reset spring (542), the second end of the connecting rod (541) is arranged on the second connecting rod support (544) and is connected with the second air hole guide plate (52), and the rod body of the connecting rod (541) is connected with the first air hole guide plate (51). The power device (545) is in transmission connection with the second air hole guide plate (52). The power device (545) is an electromagnetic driving device fixedly arranged in the negative pressure cavity (1), and the output shaft of the electromagnetic driving device is in transmission connection with the second air hole guide plate (52). The first air hole guide plate (51) comprises first air guide holes (511) corresponding to the first air inlet holes (11) and first air hole sealing parts (512) corresponding to the first air inlet holes (11), and the first air hole guide plate (51) is driven by the guide plate driving mechanism (54) to switch the positions of the first air guide holes (511) and the first air hole sealing parts (512) so as to realize the conduction and sealing of the first air inlet holes (11).

2. The pick-and-place module of claim 1, wherein, The first air inlet holes (11) are arranged in an array or a row on the adsorption surface (17), the first air guide holes (511) are arranged in an array or a row on the first air hole guide plate (51), and each first air guide hole (511) can cover at least one first air inlet hole (11). ​ ​ 3. The pick-and-place module of claim 2, wherein, ​ 4. The pick-and-place module of claim 1, wherein, ​ 5. The pick-and-place module of claim 4, wherein, ​ 6. The pick-and-place module of claim 1, wherein, The second air inlet hole (12) is arranged at one end side of the negative pressure cavity (1), and the second air hole guide plate (52) is driven by the guide plate driving mechanism (54) to realize sealing by adhering to the wall surface of the negative pressure cavity (1) or realize conduction by moving away from the wall surface of the negative pressure cavity (1).

7. The pick-and-place module of claim 6, wherein, The second air hole guide plate (52) comprises a structure plate (521) and a sealing plate (522), and the sealing plate (522) is arranged on one side relative to the second air inlet hole (12).

8. The pick-and-place module of claim 1, wherein, The negative pressure generating device (3) is arranged on the same side of the negative pressure cavity (1) as the second air inlet hole (12).

9. A loading system, characterized in that Comprise: A storage assembly (6), a lifting mechanism (7), a paper separation mechanism (8), and a paper taking and feeding module as claimed in any one of claims 1-8.

10. A cutting apparatus characterized by, Comprise the feeding system as claimed in claim 9.

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