Vacuum device and vacuum conveying apparatus

Abstract

The application discloses a vacuum device and a vacuum conveying device. The vacuum device comprises a vacuum cavity structure and a fan. The vacuum cavity structure is hollow inside to form a vacuum cavity. The vacuum cavity has an adsorption surface. A plurality of adsorption through holes are arranged on the adsorption surface. The adsorption through holes are used for adsorbing a to-be-adsorbed member. An end surface of one end of the vacuum cavity structure is provided with a blowing port. An end surface of the other end is provided with a suction port. The adsorption through holes, the blowing port and the suction port are all communicated with the vacuum cavity. The cross-sectional area of the vacuum cavity close to the blowing port is smaller than the cross-sectional area of the vacuum cavity close to the suction port. The adsorption surface is located between the blowing port and the suction port. The fan comprises a suction port and a first gas outlet which are communicated with each other. The suction port is communicated with the suction port. The first gas outlet is communicated with the blowing port. The application can improve the uniformity of the adsorption force of the plurality of adsorption through holes, thereby reducing the failure rate of the to-be-adsorbed member in the conveying process of the vacuum conveying device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying equipment, in particular to a vacuum device and a vacuum conveying equipment. BACKGROUND

[0002] In the production process of the electrode sheet of the battery, the electrode sheet needs to be slitting, and the slitting electrode sheet will be conveyed to the next processing station by the vacuum conveying equipment. The vacuum conveying equipment includes a vacuum cavity structure and a conveying belt which is drivingly arranged on the vacuum cavity structure. A plurality of suction ports are arranged on the conveying belt, so that the vacuum cavity structure can suction and fix the electrode sheet on the conveying belt through the suction ports for conveying.

[0003] In the related art, the vacuum cavity structure is hollow inside and has a suction surface and a suction port. A plurality of suction through holes are arranged on the suction surface and communicate with the internal space of the vacuum cavity structure. The suction through holes also communicate with the suction ports on the conveying belt, so that the vacuum cavity structure can suction and fix the electrode sheet on the conveying belt through the suction ports. The suction port is arranged at one end of the vacuum cavity structure. When the internal space of the vacuum cavity structure is suctioned through the suction port, the suction force of the suction through holes far from the suction port in the internal space of the vacuum cavity structure is weak, which leads to the suction force of the suction ports communicating with the suction through holes far from the suction port being weak. In turn, the uniformity of the suction force of the plurality of suction ports communicating with the plurality of suction through holes of the vacuum device is poor, which leads to a high failure rate of the electrode sheet in the conveying process of the vacuum conveying equipment. SUMMARY

[0004] In view of the above problems in the prior art, the present application provides a vacuum device and a vacuum conveying equipment, which can improve the uniformity of the suction force of the plurality of suction through holes, thereby reducing the failure rate of the suction member such as the electrode sheet in the conveying process of the vacuum conveying equipment.

[0005] To solve the above technical problems, in a first aspect, the present application provides a vacuum device, which comprises:

[0006] A vacuum cavity structure, which is hollow inside to form a vacuum cavity. The vacuum cavity has a suction surface on it. A plurality of suction through holes are arranged on the suction surface and communicate with the vacuum cavity. The suction through holes are used to suction a suction member. A blow port communicating with the vacuum cavity is arranged on the end face of one end of the vacuum cavity structure, and a suction port communicating with the vacuum cavity is arranged on the end face of the other end. The cross-sectional area of the vacuum cavity close to the blow port is smaller than the cross-sectional area of the vacuum cavity close to the suction port. The suction surface is located between the blow port and the suction port.

[0007] A fan includes a suction port, a first air outlet and a second air outlet, the suction port is communicated with the air inlet, the first air outlet is communicated with the air outlet, and the second air outlet is used for communication with the external environment.

[0008] In a possible implementation of the first aspect, the plurality of adsorption through holes are uniformly arranged on the adsorption surface.

[0009] The area of the cross section of the vacuum cavity increases in the direction from the air outlet to the air inlet.

[0010] In a possible implementation of the first aspect, the diameter of the air outlet is smaller than the diameter of the air inlet.

[0011] In a possible implementation of the first aspect, the fan further includes a second air outlet, and the second air outlet is used for communication with the external environment.

[0012] In a possible implementation of the first aspect, a plurality of support plates are arranged in the vacuum cavity, and the plurality of support plates are sequentially and spacedly arranged in a direction perpendicular to the direction from the air outlet to the air inlet, so as to divide the vacuum cavity into a plurality of first vacuum cavities, and each support plate is provided with a communication hole, so that each first vacuum cavity is communicated with each other.

[0013] In a possible implementation of the first aspect, a plurality of communication holes are arranged on each support plate, the sum of the areas of the openings of the plurality of communication holes is S1, the area of the side surface of the support plate facing the first vacuum cavity is S2, and S1≥(4 / 5)S2.

[0014] In a possible implementation of the first aspect, the vacuum cavity structure includes a bottom wall, a top cover, a first side wall, a second side wall, a first end wall and a second end wall, the bottom wall and the top cover are arranged oppositely, the first side wall, the first end wall, the second side wall and the second end wall are sequentially and sealingly connected and are sealingly arranged between the bottom wall and the top wall to form the vacuum cavity, and the adsorption surface is located on the bottom wall.

[0015] The first end wall includes a plurality of first end plates sequentially arranged in a direction perpendicular to the direction from the air outlet to the air inlet, and each first end plate is provided with the air inlet.

[0016] The second end wall includes a plurality of second end plates sequentially spliced in a direction perpendicular to the direction from the air outlet to the air inlet, and the plurality of second end plates correspond to the plurality of first end plates one by one, and each second end plate is provided with the air outlet.

[0017] Two ends of each of the support plates are connected to the connection of two adjacent first end plates and the connection of two adjacent second end plates corresponding to the two adjacent first end plates respectively.

[0018] In a possible implementation of the first aspect, the vacuum device further includes a first rectifying structure and a second rectifying structure, the first rectifying structure includes a gas distribution suction port and a plurality of gas distribution outlets, the gas distribution suction port is connected with the first gas outlet, and the plurality of gas distribution outlets are connected with the plurality of air blowing ports one by one, the second rectifying structure includes a plurality of gas collection suction ports and a gas collection outlet, the plurality of gas collection suction ports are connected with the plurality of air suction ports one by one, and the gas collection outlet is connected with the suction port.

[0019] In a possible implementation of the first aspect, a diameter of the gas distribution suction port is d1, and a diameter of the gas distribution outlet is d2, and d1≥2d2.

[0020] A diameter of the gas distribution outlet is greater than or equal to a diameter of the air blowing port.

[0021] A diameter of the gas collection outlet is d3, and a diameter of the gas collection suction port is d4, and d3≥2d4.

[0022] A diameter of the gas collection suction port is greater than or equal to a diameter of the air suction port.

[0023] In a possible implementation of the first aspect, the top cover includes a plurality of top covers, the plurality of top covers are arranged in sequence along a direction perpendicular to the air blowing port and pointing to the air suction port, the plurality of top covers correspond to the plurality of first vacuum cavities one by one, each of the top covers is arranged on the first vacuum cavity, and a side of each of the support plates away from the bottom wall is connected to a junction of two adjacent top covers.

[0024] Each of the top covers includes a first cover plate and a second cover plate connected with each other, a junction of the first cover plate and the second cover plate is higher than the first side wall, the second side wall and the support plate in a direction perpendicular to the adsorption surface, and the air suction port and the air blowing port are located directly below the junction of the first cover plate and the second cover plate in the direction perpendicular to the adsorption surface.

[0025] In a possible implementation of the first aspect, a plurality of parallel and spaced air passage grooves are arranged on the adsorption surface, each of the air passage grooves is connected with the plurality of adsorption through holes, and each of the air passage grooves is further connected with the plurality of adsorption ports.

[0026] In a possible implementation of the first aspect, a spacing between each of two adjacent air passage grooves is equal, and an extension direction of each of the air passage grooves and a direction in which the air blowing port points to the air suction port form an included angle.

[0027] In a second aspect, the present application provides a vacuum conveying device, comprising:

[0028] In the vacuum device of the first aspect, a plurality of parallel and spaced air passage grooves are formed on the suction surface, and each air passage groove has an included angle between the extension direction and the direction in which the air blowing port points to the air suction port;

[0029] A conveying belt is movably arranged on the vacuum device, and a plurality of suction ports are arranged on the conveying belt, and the plurality of suction ports are in communication with the air passage grooves to fix the objects to be sucked on the conveying belt;

[0030] A driving device is connected to the conveying belt to drive the conveying belt to move relative to the vacuum device.

[0031] In a possible implementation of the second aspect, the vacuum conveying device further comprises a first roller and a second roller movably arranged on opposite sides of the vacuum device along the conveying direction of the conveying belt;

[0032] The conveying belt has a ring structure, and sequentially passes through the driving device, the first roller, the vacuum device and the second roller.

[0033] Compared with the prior art, the present application has at least the following beneficial effects:

[0034] In the application, by setting the air blowing port communicated with the vacuum cavity on the end face of one end of the vacuum cavity structure, and setting the air suction port communicated with the vacuum cavity on the end face of the other end, the flow rate of the air flow close to the air blowing port in the vacuum cavity can be improved, so as to increase the adsorption force of the plurality of adsorption through holes close to the air blowing port, and further reduce the difference between the adsorption force of the plurality of adsorption through holes close to the air suction port and the adsorption force of the plurality of adsorption through holes close to the air blowing port, and improve the uniformity of the adsorption force of the plurality of adsorption through holes on the adsorption surface. In addition, by making the cross-sectional area of the vacuum cavity close to the air blowing port smaller than the cross-sectional area of the vacuum cavity close to the air suction port, and making the suction port communicated with the air suction port, and making the first air outlet communicated with the air blowing port, and making the second air outlet communicated with the external environment, it can be seen that, on the one hand, by using one fan, and the flow rate of the air flow entering the vacuum cavity through the air blowing port is smaller than the flow rate of the air flow output from the vacuum cavity through the air suction port, the vacuum cavity can be in a negative pressure state, so that the plurality of adsorption through holes have the adsorption force of the adsorbed member, and at the same time, the circulating air flow in the vacuum cavity can be used, so as to improve the uniformity of the pressure in the vacuum cavity. On the other hand, by making the cross-sectional area of the vacuum cavity close to the air blowing port smaller than the cross-sectional area of the vacuum cavity close to the air suction port, the flow rate of the air flow close to the air suction port in the vacuum cavity can be kept unchanged, so as to avoid the increase of the adsorption force of the plurality of adsorption through holes close to the air suction port, and further ensure the uniformity of the adsorption force of the plurality of adsorption through holes. Therefore, when the vacuum device is applied to the vacuum conveying equipment, the uniformity of the adsorption force of the adsorption port communicated with the plurality of adsorption through holes can be improved, so as to reduce the failure rate of the adsorbed member in the conveying process of the vacuum conveying equipment. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0036] Figure 1 Structure diagram of the vacuum device provided by the embodiment of the present application;

[0037] Figure 2 Cross-sectional view of the vacuum cavity structure provided by the embodiment of the present application;

[0038] Figure 3 Structure diagram of the bottom wall facing the vacuum cavity provided by the embodiment of the present application;

[0039] Figure 4 Front view of the vacuum cavity structure provided by the embodiment of the present application;

[0040] Figure 5A structural schematic view of the support plate provided for the embodiment of the present application;

[0041] Figure 6 A side view of the vacuum cavity structure provided for the embodiment of the present application;

[0042] Figure 7 A top view of the vacuum cavity structure provided for the embodiment of the present application;

[0043] Figure 8 A structural schematic view of the bottom wall away from the vacuum cavity provided for the embodiment of the present application;

[0044] Figure 9 A structural schematic view of the vacuum device provided for the embodiment of the present application;

[0045] Figure 10 A connection schematic view of the first rectifying structure and the second rectifying structure provided for the embodiment of the present application;

[0046] Figure 11 A structural schematic view of the vacuum conveying device provided for the embodiment of the present application;

[0047] Figure 12 A structural schematic view of the conveying belt with the to-be-sucked accessories fixed thereon provided for the embodiment of the present application.

[0048] Legend of reference numerals:

[0049] 100 - vacuum device; 110 - vacuum cavity structure; 111 - vacuum cavity; 1111 - suction surface; 1112 - suction through hole; 1113 - air passage groove; 112 - air blowing port; 113 - air suction port; 114 - bottom wall; 115 - top cover; 1151 - first cover plate; 1152 - second cover plate; 116 - first side wall; 117 - second side wall; 118 - first end wall; 1181 - first end plate; 119 - second end wall; 1191 - second end plate; 120 - fan; 121 - suction port; 122 - first air outlet; 123 - second air outlet; 130 - hose; 131 - first hose; 132 - second hose; 140 - support plate; 141 - communication hole; 150 - first rectifying structure; 151 - gas distribution suction port; 152 - gas distribution outlet; 160 - second rectifying structure; 161 - gas collection suction port; 162 - gas collection outlet;

[0050] 200 - vacuum conveying device; 210 - conveying belt; 211 - suction port; 220 - driving device; 231 - first roller; 232 - second roller;

[0051] 10 - to-be-sucked accessory. DETAILED DESCRIPTION

[0052] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only 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 the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0053] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0054] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0055] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0056] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "multiple" is two or more.

[0057] As described in the background of the present application, in the related art, the inside of the vacuum cavity structure is hollow and has a suction surface and a suction port, a plurality of suction through holes are formed on the suction surface and communicate with the inside space of the vacuum cavity structure, and the suction through holes also communicate with the suction ports on the conveying belt, so that the vacuum cavity structure fixes the pole piece on the conveying belt through the suction ports, and the suction port is arranged at one end of the vacuum cavity structure, so that when the inside space of the vacuum cavity structure is suctioned through the suction port, the suction force of the suction through hole far away from the suction port in the inside space of the vacuum cavity structure is weak, thereby causing the suction force of the suction port communicated with the plurality of suction through holes far away from the suction port to be weak, and further causing the uniformity of the suction force of the plurality of suction ports communicated with the plurality of suction through holes of the vacuum device to be poor, thereby causing the failure rate of the pole piece in the conveying process of the vacuum conveying equipment to be high.

[0058] In order to solve the technical problems mentioned in the background, the present application provides a vacuum device and a vacuum conveying equipment, because the suction through hole communicated with the vacuum cavity is arranged on the suction surface, the blowing port communicated with the vacuum cavity is arranged on the end surface of one end of the vacuum cavity structure, and the suction port communicated with the vacuum cavity is arranged on the other end surface, and the cross-sectional area of the vacuum cavity close to the blowing port is smaller than the cross-sectional area of the vacuum cavity close to the suction port, therefore, by arranging the blowing port, the airflow velocity of the end of the vacuum cavity close to the blowing port can be improved, thereby increasing the suction force of the end of the suction through hole close to the blowing port, reducing the difference between the suction force of the suction through hole close to the blowing port and the suction force of the suction through hole close to the suction port, thereby improving the uniformity of the suction force of the vacuum device to the suction member, in addition, by the cross-sectional area of the vacuum cavity close to the blowing port being smaller than the cross-sectional area of the vacuum cavity close to the suction port, the suction force of the suction through hole close to the suction port can be further avoided to be increased, thereby improving the uniformity of the suction force of the plurality of suction through holes, when the vacuum device is applied to the vacuum conveying equipment, the uniformity of the suction force of the plurality of suction ports communicated with the plurality of suction through holes of the vacuum device can be improved, thereby reducing the failure rate of the suction member in the conveying process of the vacuum conveying equipment.

[0059] The present application will be described in detail below through specific embodiments:

[0060] For reference Figure 1 , Figure 2 and Figure 3The embodiment of the present application provides a vacuum device 100, which comprises a vacuum cavity structure 110 and a fan 120, the vacuum cavity structure 110 is hollow inside to form a vacuum cavity 111, the vacuum cavity 111 is provided with a suction surface 1111, a plurality of suction through holes 1112 which are communicated with the vacuum cavity 111 are arranged on the suction surface 1111, the suction through holes 1112 are used for adsorbing a to-be-sucked member, a blowing port 112 which is communicated with the vacuum cavity 111 is arranged on the end surface of one end of the vacuum cavity structure 110, a suction port 113 which is communicated with the vacuum cavity 111 is arranged on the end surface of the other end, the cross-sectional area of the vacuum cavity 111 close to the blowing port 112 is smaller than the cross-sectional area of the vacuum cavity 111 close to the suction port 113, and the suction surface 1111 is located between the blowing port 112 and the suction port 113; the fan 120 comprises a suction port 121 and a first gas outlet 122 which are communicated with each other, the suction port 121 is communicated with the suction port 113, and the first gas outlet 122 is communicated with the blowing port 112.

[0061] It should be noted that the vacuum cavity 111 is provided with the suction surface 1111, and it should be understood that the suction surface 1111 is located on the outside of the cavity wall of the vacuum cavity 111.

[0062] In the embodiment, by arranging the air blowing port 112 on the end face of one end of the vacuum cavity structure 110, which is communicated with the vacuum cavity 111, and the air suction port 113 on the end face of the other end, which is communicated with the vacuum cavity 111, the flow rate of the air flow near the air blowing port 112 in the vacuum cavity 111 can be increased, so as to increase the adsorption force of the plurality of adsorption through holes 1112 near the air blowing port 112, and further reduce the difference between the adsorption force of the plurality of adsorption through holes 1112 near the air suction port 113 and the adsorption force of the plurality of adsorption through holes 1112 near the air blowing port 112, and the uniformity of the adsorption force of the plurality of adsorption through holes 1112 on the adsorption surface 111 is improved. In addition, by making the cross-sectional area of the vacuum cavity 111 near the air blowing port 112 smaller than the cross-sectional area of the vacuum cavity 111 near the air suction port 113, and the suction port 121 is communicated with the air suction port 113, and the first air outlet 122 is communicated with the air blowing port 112, it can be seen that, on the one hand, by using one air blower 120, and the flow rate of the air flow entering the vacuum cavity 111 through the air blowing port 112 is smaller than the flow rate of the air flow output from the vacuum cavity 111 through the air suction port 113, so that the vacuum cavity 111 can be in a negative pressure state, so that the plurality of adsorption through holes 1112 can adsorb the to-be-adsorbed member, and at the same time, the circulating air flow in the vacuum cavity 111 can be adopted, so as to improve the uniformity of the pressure in the vacuum cavity 111. On the other hand, by making the cross-sectional area of the vacuum cavity 111 near the air blowing port 112 smaller than the cross-sectional area of the vacuum cavity 111 near the air suction port 113, the flow rate of the air flow near the air suction port 113 in the vacuum cavity 111 can be kept unchanged, so as to avoid the increase of the adsorption force of the plurality of adsorption through holes 1112 near the air suction port 113, and further ensure the uniformity of the adsorption force of the plurality of adsorption through holes 1112. Therefore, when the vacuum device 100 is applied to the vacuum conveying equipment 200, the uniformity of the adsorption force of the adsorption port communicated with the plurality of adsorption through holes 1112 can be improved, so as to reduce the failure rate of the to-be-adsorbed member in the conveying process of the vacuum conveying equipment 200.

[0063] Optionally, the suction port 121 and the air suction port 113 and the first air outlet 122 and the air blowing port 112 are connected through the hose 130. By arranging the hose 130, the setting position of the air blower 120 can be flexibly set.

[0064] Since the direction of the air flow in the vacuum cavity 111 is from the air blowing port 112 to the air suction port 113, the flow rate of the air flow near the air blowing port 112 in the vacuum cavity 111 is smaller, and the flow rate of the air flow near the air suction port 113 in the vacuum cavity 111 is larger. Therefore, in the direction (the direction indicated by the arrow X) in which the air blowing port 112 points to the air suction port 113, the flow rate of the air flow in the vacuum cavity 111 gradually increases. Based on this, in order to ensure the uniformity of the adsorption force of the plurality of adsorption through holes 1112, in some possible embodiments, referring to FIG. 2, the cross-sectional area of the vacuum cavity 111 near the air blowing port 112 is smaller than the cross-sectional area of the vacuum cavity 111 near the air suction port 113, and the suction port 121 is communicated with the air suction port 113, and the first air outlet 122 is communicated with the air blowing port 112. Figure 2 ​Figure 2 and Figure 3 A plurality of adsorption holes 1112 are uniformly arranged on the adsorption surface 1111, and the cross-sectional area of the vacuum cavity 111 increases in the direction from the air outlet 112 to the air inlet 113.

[0065] Since the cross-sectional area of the vacuum cavity 111 increases in the direction from the air outlet 112 to the air inlet 113, the space of the vacuum cavity 111 in the direction from the air outlet 112 to the air inlet 113 can be used to accommodate the increasing air flow, so as to avoid the pressure increase near the air inlet 113 in the vacuum cavity 111, thereby ensuring the uniformity of the adsorption force of the plurality of adsorption holes 1112.

[0066] Since the flow rate of the air flow passing through the air outlet 112 is less than the flow rate of the air flow passing through the air inlet 113, in order to minimize the difference between the flow rate of the air flow passing through the air outlet 112 and the flow rate of the air flow passing through the air inlet 113, in some possible embodiments, referring to Figure 2 The diameter of the air outlet 112 is less than the diameter of the air inlet 113.

[0067] Therefore, when the diameter of the air outlet 112 is less than the diameter of the air inlet 113, the uniformity of the adsorption force of the plurality of adsorption holes 1112 can be further ensured.

[0068] In some possible embodiments, the fan 120 further includes a second air outlet 123 for communicating with the external environment, so that the flow rate of the air flow entering the vacuum cavity 111 through the air outlet 112 is less than the air flow output from the vacuum cavity 111 through the air inlet 113, so that the plurality of adsorption holes 1112 can adsorb the object to be adsorbed.

[0069] In some possible embodiments, referring to Figure 4 and Figure 5 A plurality of support plates 140 are arranged in the vacuum cavity 111, and the plurality of support plates 140 are sequentially and spacedly arranged in the direction perpendicular to the direction from the air outlet 112 to the air inlet 113, so as to divide the vacuum cavity 111 into a plurality of first vacuum cavities. The communication holes 141 are arranged on each support plate 140, so that each first vacuum cavity is in communication with each other.

[0070] In the embodiment, the plurality of support plates 140 are sequentially and spacedly arranged in the vacuum cavity 111 in the direction from the air blowing port 112 to the air suction port 113, so that the vacuum cavity 111 can be supported, thereby ensuring the strength of the vacuum cavity structure 110 and avoiding the deformation of the vacuum cavity structure 110 under the negative pressure in the vacuum cavity 111. In addition, since the plurality of communication holes 141 are arranged on each support plate 140, the plurality of first vacuum cavities can be communicated with each other through the communication holes 141, so that the pressures in the plurality of first vacuum cavities tend to be equal, and further, the adsorption forces of the plurality of adsorption through-holes 1112 corresponding to each first vacuum cavity tend to be equal.

[0071] In some possible embodiments, referring to Figure 5 , the plurality of communication holes 141 are arranged on each support plate 140, the sum of the areas of the openings of the plurality of communication holes 141 is S1, the area of the side surface of the support plate 140 facing the first vacuum cavity is S2, and S1≥(4 / 5)S2.

[0072] When the sum of the areas of the openings of the plurality of communication holes 141 is less than 4 / 5 of the area of the side surface of the support plate 140 facing the first vacuum cavity, it means that the aperture or width of the communication hole 141 is small, thereby affecting the flow rate of the air flow passing through the communication hole 141, and further, it is difficult to ensure that the pressures in each first vacuum cavity are approximately equal or equal. Therefore, S1≥(4 / 5)S2 is set, so that the flow rate of the air flow passing through the communication hole 141 can be ensured, and further, the pressures in each first vacuum cavity can be approximately equal.

[0073] The specific structure of the vacuum cavity structure 110 is not limited, and in some possible embodiments, referring to Figure 4 , Figure 6 and Figure 7 , the vacuum cavity structure 110 includes a bottom wall 114, a top cover 115, a first side wall 116, a second side wall 117, a first end wall 118 and a second end wall 119. The bottom wall 114 is arranged opposite to the top cover 115. The first side wall 116, the first end wall 118, the second side wall 117 and the second end wall 119 are sequentially and sealingly connected and are sealingly arranged between the bottom wall 114 and the top cover 115 to enclose the vacuum cavity 111. The adsorption surface 1111 is located on the bottom wall 114. The first end wall 118 includes a plurality of first vacuum cavities 1110 arranged in the direction perpendicular to the air blowing port 112 and pointing to the air suction port 113 (i.e. Figure 4The second end wall 119 comprises a plurality of second end plates 1191 which are sequentially spliced in a direction perpendicular to the air outlet 112 and pointing to the air inlet 113, the plurality of second end plates 1191 correspond to the plurality of first end plates 1181 one by one, and each second end plate 1191 is provided with the air outlet 112; both ends of each support plate 140 are connected to the connection positions of the adjacent two first end plates 1181 and the adjacent two second end plates 1191 corresponding to the adjacent two first end plates 1181 respectively.

[0074] Therefore, by providing the air inlet 113 on each first end plate 1181 and the air outlet 112 on each second end plate 1191, and by making the plurality of second end plates 1191 correspond to the plurality of first end plates 1181 one by one, the uniformity of the adsorption force of the plurality of adsorption through-holes 1112 corresponding to each first vacuum cavity can be ensured.

[0075] Of course, the vacuum cavity structure 110 is not limited to the above structure, for example, the vacuum cavity structure 110 can be a columnar structure.

[0076] Since the air flow in the vacuum cavity 111 will move towards the air inlet 113 under the action of the fan 120, and since the air inlet 113 is located in the middle of the second end plate 1191, the air flow at the edge of the vacuum cavity 111 will converge to the middle of the vacuum cavity 111. Therefore, in order to ensure the constancy of the flow rate of the air flow in the vacuum cavity 111, in some possible embodiments, in combination with the description of Figure 4 and Figure 7 The top cover 115 comprises a plurality of top covers 115 which are sequentially arranged in a direction perpendicular to the air outlet 112 and pointing to the air inlet 113, the plurality of top covers 115 correspond to the plurality of first vacuum cavities one by one, each top cover 115 covers a first vacuum cavity, each support plate 140 away from the bottom wall 114 is connected to the junction of the adjacent two top covers 115 respectively, and each top cover 115 comprises a first cover plate 1151 and a second cover plate 1152 which are connected to each other, the connection position of the first cover plate 1151 and the second cover plate 1152 is higher than the first side wall 116, the second side wall 117 and the support plate 140 in a direction perpendicular to the adsorption surface 1111 (i.e. the direction indicated by the Z arrow in Figure 4 The air inlet 113 and the air outlet 112 are located directly below the connection position of the first cover plate 1151 and the second cover plate 1152 in the direction perpendicular to the adsorption surface 1111.

[0077] Therefore, the connection between the first cover plate 1151 and the second cover plate 1152 is higher than the first side wall 116, the second side wall 117 and the support plate 140 in the direction perpendicular to the adsorption surface 1111, and the air inlet 113 and the air outlet 112 are located directly below the connection between the first cover plate 1151 and the second cover plate 1152 in the direction perpendicular to the adsorption surface 1111, so that the space above the air inlet 113 and the air outlet 112 can be increased to accommodate more converging air flow, thereby ensuring the stability of the flow rate of the air flow in the vacuum cavity 111, and further ensuring the uniformity of the adsorption force of each first vacuum cavity corresponding to the plurality of adsorption through holes 1112.

[0078] In some possible embodiments, referring to Figure 8 , the adsorption surface 1111 is provided with a plurality of parallel and spaced ventilation grooves 1113, each ventilation groove 1113 is in communication with the plurality of adsorption through holes 1112, and each ventilation groove 1113 is also used to communicate with the plurality of adsorption ports.

[0079] By arranging a plurality of parallel and spaced ventilation grooves 1113, and each ventilation groove 1113 is in communication with the plurality of adsorption through holes 1112, on the one hand, when the conveying belt 210 is arranged on the vacuum device 100, since the ventilation grooves 1113 are in communication with the plurality of adsorption through holes 1112 and the plurality of adsorption ports, when the adsorption through holes 1112 are in a negative pressure state, the ventilation grooves 1113 and the adsorption ports are also in a negative pressure state, so that the adsorption ports can adsorb and fix the objects to be adsorbed on the conveying belt 210, on the other hand, since the ventilation grooves 1113 have a certain length, the ventilation grooves 1113 can adjust the adsorption force of the plurality of adsorption through holes 1112, so that the adsorption force transmitted to the adsorption ports through the ventilation grooves 1113 tends to be equal, further ensuring the uniformity of the adsorption force of the plurality of adsorption ports on the conveying belt 210.

[0080] It should be noted that the width of the ventilation groove 1113 is greater than or equal to the diameter of the adsorption through hole 1112 and the adsorption port.

[0081] Since the main circulating air flow in the first vacuum cavity flows from the air outlet 112 to the air inlet 113, and the air outlet 112 is arranged at the middle of the first end plate 1181 and the air inlet 113 is arranged at the middle of the second end plate 1191, the flow rate of the main circulating air flow on the line connecting the air outlet 112 and the air inlet 113 is the fastest, in other words, the adsorption force of the plurality of adsorption through holes 1112 corresponding to the main circulating air flow is greater than the adsorption force at other adsorption through holes 1112, based on this, in order to ensure the uniformity of the adsorption force of the plurality of adsorption through holes 1112, in some possible embodiments, referring to Figure 8The interval between each two adjacent air vents 1113 is equal, and the extending direction of each air vent 1113 has an angle with the direction in which the air outlet 112 points to the air inlet 113.

[0082] In this way, on the one hand, compared with the extending direction of the air vent 1113 being parallel to the direction in which the air outlet 112 points to the air inlet 113, the inclined air vent 1113 (i.e. the extending direction of the air vent 1113 has an angle with the direction in which the air outlet 112 points to the air inlet 113) can adjust the negative pressure of different adsorption holes 1112, so as to make the adsorption force of the plurality of adsorption ports communicated with the air vent 1113 tend to be equal, thereby ensuring the uniformity of the adsorption force of the plurality of adsorption ports. On the other hand, the inclined air vent 1113 can generate a component force perpendicular to the conveying direction of the to-be-sucked member, thereby preventing the risk of the to-be-sucked member deviating relative to the conveying belt 210 during the conveying process of the conveying belt 210.

[0083] It should be noted that the angle refers to an acute angle or a right angle. Preferably, the extending direction of each air vent 1113 has an angle of 45° with the direction in which the air outlet 112 points to the air inlet 113.

[0084] In some possible embodiments, referring to Figure 9 and Figure 10 the vacuum device 100 further includes a first flow regulation structure 150 and a second flow regulation structure 160. The first flow regulation structure 150 includes a gas distribution suction port 151 and a plurality of gas distribution outlets 152. The gas distribution suction port 151 is connected with the first air outlet 122. The plurality of gas distribution outlets 152 correspond to the plurality of air outlets 112 one by one and are respectively connected. The second flow regulation structure 160 includes a plurality of gas collection suction ports 161 and a gas collection outlet 162. The plurality of gas collection suction ports 161 correspond to the plurality of air inlets 113 one by one and are respectively connected. The gas collection outlet 162 is connected with the air suction port 121.

[0085] Since the gas distribution suction port 151 is connected with the first air outlet 122, and the plurality of gas distribution outlets 152 correspond to the plurality of air outlets 112 one by one and are respectively connected, the air flow entering the first flow regulation structure 150 through the first air outlet 122 can be regulated by the first flow regulation structure 150. The regulated air flow enters the plurality of air outlets through the plurality of gas distribution outlets 152. Since the air flow entering the plurality of air outlets is regulated by the first flow regulation structure 150, the flow rate of the air flow through the plurality of air outlets tends to be equal.

[0086] In addition, since the plurality of gas collection suction ports 161 correspond to the plurality of air suction ports 113 one by one and are connected respectively, the gas collection outlet 162 is connected with the suction port 121, therefore, the air flow entering into the second rectifying structure 160 through the plurality of gas collection suction ports 161 can be rectified by the second rectifying structure 160, the rectified air flow enters the suction port 121 through the gas collection outlet 162, since the air flow output by the plurality of gas collection suction ports 161 is rectified by the second rectifying structure 160, therefore, the flow rate of the air flow entering the suction port 121 through the gas collection outlet 162 is relatively constant.

[0087] In addition, the hose 130 includes a first hose 131 and a second hose 132, the gas distribution suction port 151 is connected with the first air outlet 122 through the first hose 131, and the diameter of the first hose 131 is greater than or equal to the diameter of the gas distribution suction port 151, so as to ensure that the flow rate of the air flow passing through the gas distribution suction port 151 is constant, the gas distribution outlet 152 is connected with the air blowing port 112 through the second hose 132, and the diameter of the second hose 132 is greater than or equal to the diameter of the air blowing port 112, so as to ensure that the flow rate of the air flow passing through the air blowing port 112 is constant.

[0088] Similarly, the gas collection suction port 161 is connected with the air suction port 113 through the second hose 132, and the diameter of the second hose 132 is greater than or equal to the diameter of the air suction port 113, so as to ensure that the flow rate of the air flow passing through the air suction port 113 is constant, the gas collection outlet 162 is connected with the suction port 121 through the first hose 131, and the diameter of the first hose 131 is greater than or equal to the diameter of the gas collection outlet 162, so as to ensure that the flow rate of the air flow passing through the gas collection outlet 162 is constant.

[0089] In some possible embodiments, referring to Figure 9 and Figure 10 , the diameter of the gas distribution suction port 151 is d1, the diameter of the gas distribution outlet 152 is d2, d1≥2d2; the diameter of the gas distribution outlet 152 is greater than or equal to the diameter of the air blowing port 112; the diameter of the gas collection outlet 162 is d3, the diameter of the gas collection suction port 161 is d4, d3≥2d4; the diameter of the gas collection suction port 161 is greater than or equal to the diameter of the air suction port 113.

[0090] Since the first rectifying structure 150 comprises one gas distribution suction port 151 and multiple gas distribution outlet ports 152, in order to ensure that the flow through one gas distribution suction port 151 and the flow through each gas distribution outlet port 152 tend to be equal, the diameter d1 of the gas distribution suction port 151 is greater than or equal to 2 times the diameter d2 of the gas distribution outlet port 152. Similarly, since the second rectifying structure 160 comprises multiple gas collection suction ports 161 and one gas collection outlet port 162, in order to ensure that the flow through one gas collection outlet port 162 and the flow through each gas collection suction port 161 tend to be equal, the diameter d3 of the gas collection outlet port 162 is greater than or equal to 2 times the diameter d4 of the gas collection suction port 161.

[0091] In addition, since the multiple gas distribution outlet ports 152 correspond to the multiple air blowing ports 112 one by one and are connected respectively, in order to avoid the increase of the flow rate of the air flow entering the air blowing port 112, the diameter of the gas distribution outlet port 152 is greater than or equal to the diameter of the air blowing port 112. Similarly, since the multiple gas collection suction ports 161 correspond to the multiple air suction ports 113 one by one and are connected respectively, in order to avoid the increase of the flow rate of the air flow at the air suction port 113, the diameter of the gas collection suction port 161 is greater than or equal to the diameter of the air suction port 113.

[0092] Referring to Figure 11 and Figure 12 , the embodiment of the present application further provides a vacuum conveying device 200, which comprises the vacuum device 100, a conveying belt 210 and a driving device 220, the suction surface 1111 is provided with multiple parallel and spaced air passage grooves 1113, and the extension direction of each air passage groove 1113 and the direction in which the air blowing port 112 points to the air suction port 113 have an included angle; the conveying belt 210 is movably arranged on the vacuum device 100, and the conveying belt 210 is provided with multiple suction ports 211, the multiple suction ports 211 can communicate with the air passage grooves 1113, so as to adsorb and fix the object 10 to be adsorbed on the conveying belt 210; the driving device 220 is connected with the conveying belt 210, so as to drive the conveying belt 210 to move relative to the vacuum device 100.

[0093] It should be noted that, in the embodiment of the present application, the vacuum device 100 can be the same as the structure of any one of the vacuum devices 100 in the above-mentioned embodiments, and can bring the same or similar beneficial effects, and the specific description can be referred to the description in the above-mentioned embodiments, which will not be described here again.

[0094] In the embodiment, the suction port 211 of the driving device 220 drives the conveying belt 210 to convey the suction member 10, and the suction port 211 is communicated with the suction hole 1112 at different positions. Since the suction force of the plurality of suction holes 1112 of the vacuum device 100 is equal, the driving device 220 drives the conveying belt 210 to convey the suction member 10, and the suction force of the suction port 211 is reduced, so that the suction member 10 is not concave due to the large suction force of the suction port 211, or is not bulging due to the small suction force of the suction port, or is not offset due to the uneven suction force, and the like.

[0095] In addition, when the distance between each adjacent two suction ports 211 is smaller, and the extension direction of each air passage 1113 and the direction of the air outlet 112 pointing to the air inlet 113 have an included angle of 45°, the suction force on the suction member 10 is uniform when the conveying belt 210 conveys the suction member 10 at a faster conveying speed.

[0096] In some possible embodiments, referring to Figure 11 , the vacuum conveying device 200 further comprises a first roller 231 and a second roller 232 movably arranged on opposite sides of the vacuum device 100 along the conveying direction of the conveying belt 210; the conveying belt 210 has a ring structure, and the conveying belt 210 sequentially passes through the driving device 220, the first roller 231, the vacuum device 100 and the second roller 232.

[0097] Since the first roller 231 and the second roller 232 are movably arranged on opposite sides of the vacuum device 100, the installation positions of the first roller 231 and the second roller 232 can be adjusted, so that the vacuum conveying device 200 can be applied to the installation of vacuum devices 100 of different specifications.

[0098] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vacuum device, characterized in that, The application relates to a vacuum cavity structure (110) and a fan (120). The vacuum cavity structure (110) is internally hollow to form a vacuum cavity (111), the vacuum cavity (111) has an adsorption surface (1111) provided with a plurality of adsorption through holes (1112) in communication with the vacuum cavity (111) and used for adsorbing an adsorbed member (10), an end surface of one end of the vacuum cavity structure (110) is provided with a blowing port (112) in communication with the vacuum cavity (111), an end surface of the other end is provided with a suction port (113) in communication with the vacuum cavity (111), the cross-sectional area of the vacuum cavity (111) close to the blowing port (112) is smaller than the cross-sectional area of the vacuum cavity (111) close to the suction port (113), and the adsorption surface (1111) is located between the blowing port (112) and the suction port (113). The fan (120) comprises a suction port (121) and a first gas outlet (122) in communication with each other, the suction port (121) is in communication with the suction port (113), and the first gas outlet (122) is in communication with the blowing port (112). The suction port (121) and the suction port (113) and the first gas outlet (122) and the blowing port (112) are connected through a hose (130).

2. The vacuum apparatus of claim 1, wherein, The plurality of adsorption through holes (1112) are uniformly arranged on the adsorption surface (1111). The cross-sectional area of the vacuum cavity (111) increases in the direction from the blowing port (112) to the suction port (113).

3. The vacuum apparatus of claim 1, wherein, The diameter of the blowing port (112) is smaller than the diameter of the suction port (113).

4. The vacuum apparatus of claim 1, wherein, The fan (120) further comprises a second gas outlet (123) used for communicating with an external environment.

5. The vacuum apparatus of claim 1, wherein, A plurality of support plates (140) are arranged in the vacuum cavity (111), the plurality of support plates (140) are sequentially and spacedly arranged in a direction perpendicular to the direction from the blowing port (112) to the suction port (113), so as to divide the vacuum cavity (111) into a plurality of first vacuum cavities, each support plate (140) is provided with a communication hole (141) to enable each first vacuum cavity to communicate with each other.

6. The vacuum apparatus of claim 5, wherein, Each support plate (140) is provided with a plurality of communication holes (141), the sum of the opening areas of the plurality of communication holes (141) is S1, the area of the side surface of the support plate (140) facing the first vacuum cavities is S2, and S1 is greater than (4 / 5) S2.

7. The vacuum apparatus of claim 5, wherein, The vacuum cavity structure (110) comprises a bottom wall (114), a top cover (115), a first side wall (116), a second side wall (117), a first end wall (118) and a second end wall (119), the bottom wall (114) is arranged opposite to the top cover (115), the first side wall (116), the first end wall (118), the second side wall (117) and the second end wall (119) are sequentially and sealingly connected and arranged between the bottom wall (114) and the top cover (115) to form the vacuum cavity (111), and the adsorption surface (1111) is located on the bottom wall (114); The first end wall (118) comprises a plurality of first end plates (1181) arranged in sequence in a direction perpendicular to the air blowing port (112) and pointing to the air suction port (113), and each first end plate (1181) is provided with the air suction port (113); The second end wall (119) comprises a plurality of second end plates (1191) spliced in sequence in a direction perpendicular to the air blowing port (112) and pointing to the air suction port (113), and a plurality of second end plates (1191) correspond to a plurality of first end plates (1181) one by one, and each second end plate (1191) is provided with the air blowing port (112); Both ends of each support plate (140) are connected to the connection of adjacent two first end plates (1181) and the connection of adjacent two second end plates (1191) corresponding to the adjacent two first end plates (1181).

8. The vacuum apparatus of claim 7, wherein, The vacuum device further comprises a first rectification structure (150) and a second rectification structure (160), the first rectification structure (150) comprises a gas distribution suction port (151) and a plurality of gas distribution outlets (152), the gas distribution suction port (151) is connected with the first air outlet (122), and a plurality of gas distribution outlets (152) correspond to a plurality of air blowing ports (112) one by one and are connected respectively, the second rectification structure (160) comprises a plurality of gas collection suction ports (161) and a gas collection outlet (162), a plurality of gas collection suction ports (161) correspond to a plurality of air suction ports (113) one by one and are connected respectively, and the gas collection outlet (162) is connected with the suction port (121).

9. The vacuum device according to claim 8, wherein The diameter of the gas distribution suction port (151) is d1, the diameter of the gas distribution outlet (152) is d2, and d1≥2d2; The diameter of the gas distribution outlet (152) is greater than or equal to the diameter of the air blowing port (112); The diameter of the gas collection outlet (162) is d3, the diameter of the gas collection suction port (161) is d4, and d3≥2d4; The diameter of the gas collection suction port (161) is greater than or equal to the diameter of the air suction port (113).

10. The vacuum apparatus of claim 7, wherein, The top cover (115) comprises a plurality of top covers (115) arranged in sequence in a direction perpendicular to the air outlet (112) pointing to the air inlet (113), and a plurality of top covers (115) correspond to a plurality of first vacuum cavities one by one, and each top cover (115) is arranged on the first vacuum cavity, and each support plate (140) is connected to the junction of adjacent two top covers (115) away from the bottom wall (114). Each top cover (115) comprises a first cover plate (1151) and a second cover plate (1152) connected to each other, and the junction of the first cover plate (1151) and the second cover plate (1152) is higher than the first side wall (116), the second side wall (117) and the support plate (140) in a direction perpendicular to the adsorption surface (1111), and the air inlet (113) and the air outlet (112) are located directly below the junction of the first cover plate (1151) and the second cover plate (1152) in a direction perpendicular to the adsorption surface (1111).

11. Vacuum device according to any of claims 1-10, characterized in that A plurality of parallel and spaced air passages (1113) are formed on the adsorption surface (1111), each air passage (1113) is in communication with a plurality of adsorption holes (1112), and each air passage (1113) is also used to communicate with a plurality of adsorption ports (211) on the conveying belt.

12. The vacuum apparatus of claim 11, wherein, The interval between each adjacent two air passages (1113) is equal, and the extension direction of each air passage (1113) has an included angle with the direction of the air outlet (112) pointing to the air inlet (113).

13. A vacuum conveying apparatus, characterized by Comprise: The vacuum device of any one of claims 1-12; A conveying belt (210) movably arranged on the vacuum device, and a plurality of adsorption ports (211) are arranged on the conveying belt (210), and the plurality of adsorption ports (211) can communicate with the air passages (1113) arranged on the adsorption surface (1111) to adsorb and fix the article (10) to be adsorbed on the conveying belt (210); A driving device (220) connected with the conveying belt (210) to drive the conveying belt (210) to move relative to the vacuum device.

14. The vacuum conveyor apparatus of claim 13, wherein, The vacuum conveying equipment further comprises a first roller (231) and a second roller (232) movably arranged on opposite sides of the vacuum device along the conveying direction of the conveying belt (210); The conveying belt (210) is in a ring structure, and the conveying belt (210) sequentially passes through the driving device (220), the first roller (231), the vacuum device and the second roller (232).

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