Vacuum palletizer

Abstract

The application relates to the air conditioner production technical field and discloses a vacuum stacker, which comprises a fixed support, a movable support, a plurality of vacuum suction cups, a vacuum pump, a control valve and a negative pressure distribution piece; the movable support is movably arranged on the fixed support; the plurality of vacuum suction cups are arranged on the movable support; the vacuum pump is arranged on the fixed support and is communicated with the vacuum suction cups; the control valve can be communicated with the vacuum suction cups and the vacuum pump or can isolate the vacuum suction cups and the vacuum pump and make the vacuum suction cups communicated with the external atmosphere; the negative pressure distribution piece is arranged on the movable support and has a negative pressure cavity, a negative pressure input port and a plurality of negative pressure output ports; the negative pressure input port is communicated with the negative pressure cavity and the vacuum pump; and the plurality of negative pressure output ports are communicated with the negative pressure cavity and the vacuum suction cups. In the application, the vacuum pump can provide negative pressure for the vacuum suction cups, and the negative pressure distribution piece can make the negative pressure among the vacuum suction cups more even, the suction force of each vacuum suction cup more uniform and the grasping of the material more stable.

Description

Technical Field

[0001] This application relates to the field of air conditioning manufacturing technology, and in particular to a vacuum palletizing machine. Background Technology

[0002] In the air conditioning equipment sector, the palletizing of finished product packaging on air conditioning production lines is crucial for the entire air conditioning manufacturing industry.

[0003] In the existing technology, when the air conditioner manufacturing industry performs finished product packaging box palletizing operations, vacuum palletizers are generally used for material palletizing operations. Vacuum palletizers include a fixed support and a movable support. The movable support can move relative to the fixed support. Multiple vacuum suction cups are set on the movable support. The vacuum suction cups grab the material and then the movable support moves the material to the required position.

[0004] However, the negative pressure pump that provides negative pressure to the vacuum suction cups is large in size and weight, and is usually set on a fixed bracket. It cannot move with the movable bracket. The distance between each vacuum suction cup and the negative pressure pump is long, which leads to uneven negative pressure of each vacuum suction cup, affecting the uniformity of the suction force of the vacuum suction cup and the stability of the vacuum palletizer in grasping materials. Utility Model Content

[0005] This application discloses a vacuum palletizer that can provide negative pressure to vacuum suction cups through a vacuum pump, and can make the negative pressure between each vacuum suction cup more uniform, make the suction force of each vacuum suction cup more uniform, and make the vacuum palletizer gripping materials more stably.

[0006] To achieve the above objectives, this application discloses a vacuum palletizing machine, comprising: a fixed bracket;

[0007] A movable support is movably mounted on the fixed support.

[0008] Multiple vacuum suction cups are all mounted on the movable support for adsorbing materials;

[0009] A vacuum pump is mounted on the fixed bracket and is connected to the vacuum suction cup. The vacuum pump is used to generate negative pressure.

[0010] A control valve is disposed between the vacuum pump and the vacuum suction cup. The control valve can connect the vacuum suction cup and the vacuum pump, or isolate the vacuum suction cup from the vacuum pump and allow the vacuum suction cup to communicate with the outside atmosphere.

[0011] A negative pressure distribution component is disposed on the movable support, the negative pressure distribution component having:

[0012] Negative pressure chamber;

[0013] The negative pressure input port is connected to the negative pressure chamber and the vacuum pump;

[0014] Multiple negative pressure output ports are connected to the negative pressure chamber and the vacuum suction cup.

[0015] In this way, both the negative pressure distribution component and the vacuum suction cups are mounted on the movable support. The distance between the negative pressure distribution component and the vacuum suction cups is much smaller than the distance between the vacuum pump and the vacuum suction cups. The negative pressure chamber of the negative pressure distribution component has a certain space to store negative pressure, which is then used to provide negative pressure to each vacuum suction cup. This effectively places the negative pressure source near the vacuum suction cups, significantly shortening the distance between each vacuum suction cup and the negative pressure source. This reduces the difference in the length of the pipeline connecting each vacuum suction cup to the negative pressure source, making the negative pressure more uniform across all vacuum suction cups, improving the uniformity of suction force, and ensuring the stability of the vacuum palletizer's material gripping. Furthermore, the negative pressure pipeline from the movable support to the vacuum pump changes from one pipeline per vacuum suction cup to one pipeline per negative pressure distribution component, significantly reducing the number of pipelines from the movable support to the vacuum pump on the fixed support, simplifying pipeline setup. In addition, the negative pressure chamber can be a cube, with the bottom surface of the cube used to connect to the movable support. The negative pressure inlet is located at the center of the top surface of the cube, and each negative pressure outlet is located on the other side of the cube, so that the negative pressure at each negative pressure outlet is more even.

[0016] As an optional implementation, the vacuum palletizer further includes:

[0017] Multiple sub-negative pressure distribution components are disposed on the movable support, the sub-negative pressure distribution components including:

[0018] Sub-negative pressure chamber;

[0019] The negative pressure input port is connected to the negative pressure output port of the negative pressure chamber and the negative pressure distribution component;

[0020] Multiple sub-negative pressure output ports are connected to the sub-negative pressure chamber and the vacuum suction cup.

[0021] Thus, when there are a large number of vacuum suction cups, sub-negative pressure distribution components can be added. The negative pressure distribution components first distribute the negative pressure evenly to each sub-negative pressure distribution component, and then distribute it to each vacuum suction cup through the sub-negative pressure distribution components, further ensuring that the negative pressure of each vacuum suction cup is uniform and improving the uniformity of the suction force of the vacuum suction cup.

[0022] As an optional implementation, the diameter of the negative pressure output port is smaller than the diameter of the negative pressure input port;

[0023] The diameter of the sub-negative pressure output port is smaller than that of the sub-negative pressure input port;

[0024] The diameter of the sub-negative pressure input port is matched with the diameter of the negative pressure output port.

[0025] Thus, by making the diameter of the negative pressure output port of the negative pressure distributor smaller than the diameter of the negative pressure input port, the cross-sectional area of ​​the negative pressure output port is smaller than that of the negative pressure input port. This creates a velocity difference in the airflow, resulting in a higher airflow velocity at the negative pressure output port than at the negative pressure input port. This increased airflow velocity during negative pressure transmission helps to transfer the negative pressure to each vacuum suction cup more quickly and evenly, thereby improving the consistency of the vacuum palletizer's adsorption effect. Similarly, making the diameter of the sub-negative pressure output port of the sub-negative pressure distributor smaller than the diameter of the sub-negative pressure input port also achieves the effect of improving the consistency of the vacuum palletizer's adsorption effect.

[0026] As an optional implementation, the sub-negative pressure chamber extends along a first direction, and the sub-negative pressure chamber has a first end and a second end opposite to each other along the first direction;

[0027] Multiple sub-negative pressure output ports are arranged along the first direction between the first end and the second end of the sub-negative pressure cavity;

[0028] The number of sub-negative pressure input ports is two, and the two sub-negative pressure input ports are respectively located at the first end and the second end of the sub-negative pressure cavity.

[0029] Thus, a sub-negative pressure input port is set at the first end and the second end in the first direction, and each is connected to the negative pressure output port. This allows the sub-negative pressure chamber to generate negative pressure more quickly. Moreover, the sub-negative pressure output ports are arranged along the first direction, providing negative pressure to the sub-negative pressure chamber from both sides of the first direction simultaneously. This makes the negative pressure of each sub-negative pressure output port more uniform and avoids some sub-negative pressure output ports being too far from the sub-negative pressure input port, which would affect the uniformity of the negative pressure provided by the sub-negative pressure output port to the vacuum suction cup.

[0030] In one implementation, the connecting pipes between each of the sub-negative pressure inlet ports and the corresponding negative pressure outlet ports are of the same length.

[0031] In this way, with all pipes of the same length, localized excessively high or low negative pressure caused by some pipes being too long or too short is avoided. This effectively reduces the problem of inconsistent negative pressure loss due to differences in pipe length, allowing each vacuum suction cup to obtain a more uniform negative pressure and improving the consistency of the vacuum palletizer's adsorption effect. Moreover, the design of equal-length pipes simplifies the design and production process. During manufacturing, uniform pipe lengths facilitate standardized production, reducing the complexity caused by pipes of different lengths, and also facilitating later maintenance and replacement.

[0032] As an optional implementation, multiple negative pressure distribution components are provided, all of which are mounted on the movable bracket. The negative pressure input port of each negative pressure distribution component is connected to the vacuum pump, and the negative pressure output port of each negative pressure distribution component is connected to the vacuum suction cup.

[0033] In this way, the number of vacuum suction cups connected to each negative pressure distribution component can be the same. This avoids connecting too many vacuum suction cups to the same negative pressure distribution component, which would compromise the effect of evenly distributing negative pressure. Furthermore, because each component has its own independent control valve, each group of vacuum suction cups can generate suction independently. When handling materials with a vacuum palletizer, the first material in the stack can be grabbed by one set of vacuum suction cups. Then, the position of the moving support can be changed, and the second material can be grabbed by the second set of vacuum suction cups. After grabbing multiple materials, all materials can be moved together to the desired location and then placed down one by one, thus improving the handling efficiency of the vacuum palletizer.

[0034] As an optional implementation, the vacuum palletizer further includes:

[0035] Multiple one-way valves are provided, each corresponding to a vacuum suction cup. The one-way valve is located between the sub-negative pressure distribution component and the vacuum suction cup. The one-way valve enables the gas in the vacuum suction cup to flow to the vacuum pump when the negative pressure in the vacuum suction cup reaches a preset value.

[0036] In this way, the one-way valve can prevent gas backflow caused by changes in external pressure during the adsorption process of the vacuum suction cup, thereby enhancing the stability of the system. Furthermore, the one-way valve can be set to open only when the negative pressure inside the vacuum suction cup reaches a preset value, allowing the vacuum suction cup to connect to the vacuum pump when there is a vacuum inside; and isolating the vacuum suction cup from the vacuum pump when there is no vacuum, i.e., when the vacuum suction cup is not fully in contact with the material or is exposed to the atmosphere. This allows for timely disconnection of the connection between the vacuum suction cup and the vacuum pump, preventing the vacuum suction cup from continuously consuming negative pressure, increasing energy consumption, or even affecting the negative pressure of other vacuum suction cups, which could lead to material detachment.

[0037] As an optional implementation, the movable support includes:

[0038] Multiple profiles, each profile having a mounting groove;

[0039] Multiple spacer connecting blocks are disposed in the mounting slot, and the vacuum suction cup is connected to the spacer connecting blocks.

[0040] This facilitates the installation and replacement of vacuum suction cups, reduces maintenance time and costs, and allows for the positioning of vacuum suction cups along the extension direction of the profile, increasing the installation flexibility of the vacuum suction cups and enabling them to adapt to various material palletizing needs, thus improving the versatility and adaptability of the vacuum palletizer.

[0041] As an optional implementation, the mounting slot has:

[0042] Receptacle;

[0043] The first slot is connected to the receiving cavity;

[0044] The second slot communicates with the receiving cavity and is opposite to the first slot along the extension direction of the profile.

[0045] The third slot is connected to the receiving cavity. Along the length of the profile, the two ends of the third slot are connected to the first slot and the second slot, respectively. Along the width of the profile, the width of the third slot is smaller than the width of the receiving cavity.

[0046] The spacer connecting block has:

[0047] A snap-fit ​​part is disposed in the receiving cavity and snaps into the third slot;

[0048] A connecting part, one end of which is connected to the snap-fit ​​part, and the other end of which extends out of the third slot;

[0049] The mounting part is connected to the connecting part, and the vacuum suction cup is disposed on the mounting part.

[0050] This facilitates the installation and replacement of vacuum suction cups, reduces maintenance time and costs, and allows for the positioning of vacuum suction cups along the extension direction of the profile, increasing the installation flexibility of the vacuum suction cups and enabling them to adapt to various material palletizing needs, thus improving the versatility and adaptability of the vacuum palletizer.

[0051] As an optional implementation, the vacuum pump is a screw vacuum pump.

[0052] Thus, because there are certain gaps between the screw and the pump chamber, and between the screws themselves, there is no direct metal-to-metal contact, resulting in smooth operation, low noise, and no need for lubrication. Furthermore, compared to Roots pumps and claw pumps, screw vacuum pumps offer better energy efficiency.

[0053] Compared with the prior art, the beneficial effects of this application are:

[0054] The vacuum palletizer provided in this application embodiment can provide negative pressure to the vacuum suction cups through a vacuum pump, and the negative pressure distribution component distributes the negative pressure to each vacuum suction cup. The negative pressure distribution component and each vacuum suction cup are both set on a movable support, which is closer to the vacuum suction cups than the vacuum pump on a fixed support. This can significantly shorten the distance between each vacuum suction cup and the negative pressure source, making the negative pressure in each vacuum suction cup more uniform and the suction force of each vacuum suction cup more uniform, thus ensuring the stability of the vacuum palletizer in grasping materials. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of the structure of the vacuum palletizing machine disclosed in the embodiments of this application;

[0057] Figure 2 This is a schematic diagram of the vacuum palletizer from another perspective of the embodiments disclosed in this application;

[0058] Figure 3 This is a schematic diagram of the vacuum palletizer from another perspective of the embodiments disclosed in this application.

[0059] Figure 4 This is a schematic diagram of the negative pressure distribution component disclosed in the embodiments of this application;

[0060] Figure 5 This is a schematic cross-sectional view of the negative pressure distribution component disclosed in the embodiments of this application;

[0061] Figure 6 This is a schematic diagram of the sub-negative pressure distribution component disclosed in the embodiments of this application;

[0062] Figure 7 This is a schematic cross-sectional view of the sub-negative pressure distribution component disclosed in an embodiment of this application;

[0063] Figure 8 This is a schematic diagram of the structure of the profile disclosed in the embodiments of this application;

[0064] Figure 9 This is a schematic diagram of the profile structure from another perspective of the embodiments disclosed in this application;

[0065] Figure 10 This is a schematic diagram of the structure of the profile and spacer connecting block disclosed in the embodiments of this application.

[0066] Explanation of reference numerals in the attached figures:

[0067] 100-Moving bracket; 11-Profile; 111-Mounting groove; 1111-Accommodation cavity; 1112-First slot; 1113-Second slot; 1114-Third slot; 12-Spacer connecting block; 121-Snap-fit ​​part; 122-Connecting part; 123-Mounting part; 200-Vacuum suction cup; 300-Sealing plate; 400-Control valve; 500-Negative pressure distribution component; 51-Negative pressure cavity; 52-Negative pressure input port; 53-Negative pressure output port; 600-Sub-negative pressure distribution component; 61-Sub-negative pressure cavity; 611-First end; 612-Second end; 62-Sub-negative pressure input port; 63-Sub-negative pressure output port; a-First direction. Detailed Implementation

[0068] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0069] In this application, the terms "upper," "lower," "top," "bottom," "inner," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0070] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0071] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0072] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0073] In the air conditioning equipment sector, the palletizing of finished product packaging on air conditioning production lines is crucial for the entire air conditioning manufacturing industry.

[0074] In the air conditioning manufacturing industry, vacuum palletizers are generally used for the palletizing of finished product packaging boxes. Vacuum palletizers include a fixed support and a movable support. The movable support can move relative to the fixed support. Multiple vacuum suction cups are set on the movable support. The vacuum suction cups grab the material and then the movable support moves the material to the required position.

[0075] An independent jet-type vacuum generator can be installed on each vacuum suction cup, providing high-pressure gas to convert compressed air into negative pressure, thus creating negative pressure on the suction cup to grip materials. However, to ensure sufficient suction force, the compressed air pressure must be at least 0.6 MPa. Furthermore, the consumption of compressed air during the negative pressure generation process is continuous, requiring a large amount of high-pressure gas, leading to high energy consumption and increased costs for the compressor. Moreover, the jet-type vacuum generator is susceptible to clogging due to the cleanliness of the compressed air source, preventing the formation of a jet vacuum and causing the suction cup to lose negative pressure, resulting in a safety hazard of material falling during palletizing.

[0076] To reduce energy consumption, a vacuum pump can be used to directly provide negative pressure to the vacuum suction cups. This eliminates the energy conversion process from positive pressure compressed air to negative pressure vacuum, saving energy. However, negative pressure pumps are large and heavy, typically mounted on fixed supports and unable to move with the mobile supports. The distance between each vacuum suction cup and the negative pressure pump is also relatively long, resulting in a longer distance between each vacuum suction cup and the negative pressure source. Furthermore, the varying lengths of the pipes connecting each vacuum suction cup to the negative pressure source lead to uneven negative pressure across the cups, affecting the uniformity of suction force and the stability of the vacuum palletizer's material handling. Additionally, the numerous connecting pipes between the vacuum suction cups and the negative pressure pump make pipework design inconvenient.

[0077] Based on this, this application provides a vacuum palletizer that can provide negative pressure to the vacuum suction cups through a vacuum pump, and can make the negative pressure between each vacuum suction cup more uniform, making the suction force of each vacuum suction cup more uniform, and improving the stability of the vacuum palletizer in grasping materials.

[0078] The following will combine the embodiments and Figures 1-10 The technical solution of this application will be further explained.

[0079] Please see Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the vacuum palletizing machine disclosed in the embodiments of this application. Figure 2 This is a schematic diagram of the vacuum palletizer from another perspective of the embodiments disclosed in this application. Figure 3 This is a structural schematic diagram of a vacuum palletizer from another perspective, as disclosed in an embodiment of this application. This application discloses a vacuum palletizer, including a fixed support (not shown), a movable support 100, multiple vacuum suction cups 200, a vacuum pump (not shown), a control valve 400, and a negative pressure distribution component 500. The movable support 100 is movably mounted on the fixed support. Multiple vacuum suction cups 200 are all mounted on the movable support 100 for adsorbing materials. The vacuum pump is mounted on the fixed support and communicates with the vacuum suction cups 200, generating negative pressure. The control valve 400 is mounted on the fixed support. Between the vacuum pump and the vacuum suction cup 200, the control valve 400 can connect the vacuum suction cup 200 and the vacuum pump, or isolate the vacuum suction cup 200 from the vacuum pump and connect the vacuum suction cup 200 to the outside atmosphere; the negative pressure distribution component 500 is set on the movable bracket 100, and the negative pressure distribution component 500 has a negative pressure chamber 51, a negative pressure inlet 52 and multiple negative pressure outlets 53. The negative pressure inlet 52 is connected to the negative pressure chamber 51 and the vacuum pump; the multiple negative pressure outlets 53 are all connected to the negative pressure chamber 51 and the vacuum suction cup 200.

[0080] Specifically, the fixed support frame serves as the basic support structure for the entire vacuum palletizing fixture, stabilizing and securing other components. It provides a foundational platform for installation and fixation, ensuring the stability of the entire fixture during operation. The movable support frame 100 is movably mounted on the fixed support frame. The movable support frame 100 can be connected to the fixed support frame via a robotic arm, which can move the movable support frame 100 to the corresponding workstation for material handling. The vacuum suction cup 200 is a key component for material gripping. The vacuum suction cup 200 can be a corrugated suction cup. Multiple vacuum suction cups 200 can simultaneously grip multiple points of a material, improving the stability and reliability of the gripping process and effectively preventing material slippage or drop during handling.

[0081] A vacuum pump can provide negative pressure to the vacuum suction cups 200. The vacuum pump can be a rotary vane vacuum pump, a screw vacuum pump, etc. When providing negative pressure to the same number of vacuum suction cups 200, if a screw compressor and an ejector vacuum generator are used, the rated power of the screw compressor needs to reach 132kW. However, in this embodiment, a vacuum pump directly provides negative pressure, requiring only two screw vacuum pumps with a total rated power of 22kW to meet the needs of the vacuum suction cups 200, significantly saving energy. Furthermore, a vacuum tank can be configured for the vacuum pump, connected to both the vacuum pump and the vacuum suction cups 200. A certain amount of negative pressure gas is stored in the vacuum tank, providing a negative pressure gas source immediately upon startup of the vacuum palletizer, eliminating the need to wait for the vacuum pump to start and accelerating the negative pressure response speed of the vacuum suction cups 200.

[0082] The control valve 400 can be a solenoid valve. The control valve 400 has three ports, which are respectively connected to the vacuum pump, the vacuum suction cup 200, and the outside atmosphere. The control valve 400 can control the negative pressure in the vacuum suction cup 200 by controlling the switches of the three ports. When the control valve 400 is only connected to the vacuum pump and the vacuum suction cup 200, it can generate negative pressure in the vacuum suction cup 200, so that the vacuum suction cup 200 has suction force and can grab materials. When the control valve 400 is only connected to the outside atmosphere and the vacuum suction cup 200, it can connect the vacuum suction cup 200 to the outside atmosphere, break the vacuum state of the vacuum suction cup 200, remove the suction force of the vacuum suction cup 200, and let the vacuum suction cup 200 release the materials.

[0083] Combination Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the negative pressure distribution component 500 disclosed in an embodiment of this application. Figure 5This is a cross-sectional schematic diagram of the negative pressure distribution component 500 disclosed in this application embodiment. The negative pressure distribution component 500 is disposed on the movable support 100 and has a negative pressure chamber 51, a negative pressure inlet 52, and multiple negative pressure outlets 53. The negative pressure inlet 52 is connected to a vacuum pump, introducing the negative pressure generated by the vacuum pump into the negative pressure chamber 51, and then distributing the negative pressure to each vacuum suction cup 200 through the multiple negative pressure outlets 53, thereby achieving simultaneous adsorption by multiple vacuum suction cups 200 and ensuring a uniform distribution of adsorption force. Both the negative pressure distribution component 500 and the vacuum suction cup 200 are mounted on the movable support 100. The distance between the negative pressure distribution component 500 and the vacuum suction cup 200 is much smaller than the distance between the vacuum pump and the vacuum suction cup 200. The negative pressure chamber 51 of the negative pressure distribution component 500 has a certain space and can store a certain amount of negative pressure. The negative pressure chamber 51 provides negative pressure to each vacuum suction cup 200, which is equivalent to setting the negative pressure air source near the vacuum suction cup 200. This significantly shortens the distance between each vacuum suction cup 200 and the negative pressure air source, reduces the difference in the length of the pipeline connecting each vacuum suction cup 200 to the negative pressure source, makes the negative pressure of each vacuum suction cup 200 more uniform, improves the uniformity of the suction force of the vacuum suction cup 200, and ensures the stability of the vacuum palletizer in grasping materials. Furthermore, the negative pressure pipeline connecting the movable support 100 to the vacuum pump is changed from one pipeline corresponding to each vacuum suction cup 200 to one pipeline corresponding to each negative pressure distribution component 500. This significantly reduces the number of pipelines from the movable support 100 to the vacuum pump on the fixed support, simplifying pipeline setup. Additionally, the negative pressure chamber 51 can be a cube, with its bottom surface used to connect to the movable support 100. The negative pressure inlet 52 is located at the center of the top surface of the cube, and the various negative pressure outlets 53 are located on the remaining sides of the cube, resulting in a more even distribution of negative pressure at each outlet 53.

[0084] According to the embodiments of this utility model, a vacuum pump can provide negative pressure to the vacuum suction cup 200, and the negative pressure distribution component 500 distributes the negative pressure to each vacuum suction cup 200. The negative pressure distribution component 500 and each vacuum suction cup 200 are both set on the movable bracket 100, which is closer to the vacuum suction cup 200 than the vacuum pump on the fixed bracket. This can significantly shorten the distance between each vacuum suction cup 200 and the negative pressure source, making the negative pressure in each vacuum suction cup 200 more uniform and the suction force of each vacuum suction cup 200 more uniform, thus ensuring the stability of the vacuum palletizer in grasping materials.

[0085] Combination Figure 1 , Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the sub-negative pressure distribution component 600 disclosed in an embodiment of this application. Figure 7This is a cross-sectional structural diagram of the sub-negative pressure distribution component 600 disclosed in an embodiment of this application. In some embodiments, the vacuum palletizer further includes multiple sub-negative pressure distribution components 600, which are disposed on the movable support 100. Each sub-negative pressure distribution component 600 includes a sub-negative pressure chamber 61, a sub-negative pressure input port 62, and multiple sub-negative pressure output ports 63. The sub-negative pressure input port 62 is connected to the negative pressure chamber 51 and the negative pressure output ports 53 of the negative pressure distribution component 500. The multiple sub-negative pressure output ports 63 are connected to the sub-negative pressure chamber 61 and the vacuum suction cup 200.

[0086] Specifically, the various negative pressure distribution components 500, sub-negative pressure distribution components 600, and vacuum suction cups 200 can be connected through pipelines. The volume of the negative pressure chamber 51 of the negative pressure distribution component 500 should not be too large or too small to ensure the negative pressure distribution effect of the negative pressure distribution component 500. When there are a large number of vacuum suction cups 200, sub-negative pressure distribution components 600 can be added. The negative pressure distribution component 500 first distributes the negative pressure evenly to each sub-negative pressure distribution component 600, and then distributes it to each vacuum suction cup 200 through the sub-negative pressure distribution component 600, further ensuring the uniformity of the negative pressure of each vacuum suction cup 200 and improving the uniformity of the suction force of the vacuum suction cup 200. It is worth noting that the embodiments of this application propose a combination of negative pressure distribution component 500 and sub-negative pressure distribution component 600. A second-level sub-negative pressure distribution component can also be set at the next level of the sub-negative pressure distribution component 600, and a third-level sub-negative pressure distribution component can also be set at the next level of the second-level sub-negative pressure distribution component. Through this multi-group hierarchical setting, it is easy to increase the number of vacuum suction cups 200, and the negative pressure distribution components 500 at each level will not fail after the number of vacuum suction cups 200 is increased.

[0087] Combination Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the diameter of the negative pressure output port 53 is smaller than the diameter of the negative pressure input port 52; the diameter of the sub-negative pressure output port 63 is smaller than the diameter of the sub-negative pressure input port 62; and the diameter of the sub-negative pressure input port 62 matches the diameter of the negative pressure output port 53.

[0088] Specifically, the diameter of the sub-negative pressure inlet 62 matches the diameter of the negative pressure outlet 53, meaning they are the same size, facilitating connection through piping. The diameter of the negative pressure outlet 53 of the negative pressure distributor 500 is smaller than the diameter of the negative pressure inlet 52. This allows the cross-sectional area of ​​the negative pressure outlet 53 to be smaller than that of the negative pressure inlet 52, creating a velocity difference in the airflow. This results in a higher airflow velocity at the negative pressure outlet 53 than at the negative pressure inlet 52, increasing the flow velocity during negative pressure transmission. This helps to transfer the negative pressure more quickly to each vacuum suction cup 200 and ensures more even distribution of the negative pressure among the vacuum suction cups 200, thereby improving the consistency of the vacuum palletizer's adsorption effect. Similarly, the smaller diameter of the sub-negative pressure outlet 63 of the sub-negative pressure distributor 600 compared to the sub-negative pressure inlet 62 also achieves the effect of improving the consistency of the vacuum palletizer's adsorption effect. The above design effectively reduces the pressure drop difference caused by different pipeline lengths during pipeline transmission, allowing the flow rate to be appropriately increased during transmission, thereby ensuring that all vacuum suction cups 200 can reliably adsorb materials.

[0089] Combination Figure 7 In some embodiments, the sub-negative pressure chamber 61 extends along a first direction a, and the sub-negative pressure chamber 61 has a first end 611 and a second end 612 opposite to each other along the first direction a; a plurality of sub-negative pressure output ports 63 are arranged along the first direction a between the first end 611 and the second end 612 of the sub-negative pressure chamber 61; the number of sub-negative pressure input ports 62 is two, and the two sub-negative pressure input ports 62 are respectively disposed at the first end 611 and the second end 612 of the sub-negative pressure chamber 61.

[0090] Specifically, the sub-negative pressure cavity 61 can be a rectangular cavity, such as... Figure 7 As shown, the sub-negative pressure chamber 61 extends along the first direction a, and a sub-negative pressure input port 62 is provided at the first end 611 and the second end 612 along the first direction a, which are respectively connected to the negative pressure output port 53. This allows the sub-negative pressure chamber 61 to generate negative pressure more quickly. Moreover, the sub-negative pressure output ports 63 are arranged along the first direction a, providing negative pressure to the sub-negative pressure chamber 61 from both sides of the first direction a. This makes the negative pressure of each sub-negative pressure output port 63 more uniform and avoids some sub-negative pressure output ports 63 being too far from the sub-negative pressure input port 62, which would affect the uniformity of the negative pressure provided by the sub-negative pressure output ports 63 to the vacuum suction cup 200.

[0091] In some embodiments, the length of the connecting pipes between each sub-negative pressure inlet 62 and the corresponding negative pressure outlet 53 is the same.

[0092] Specifically, the sub-negative pressure inlet 62 and the negative pressure outlet 53 are connected by pipelines, allowing negative pressure to be transferred from the negative pressure outlet 53 to the sub-negative pressure inlet 62. Since all pipelines are of equal length, this avoids localized excessively high or low negative pressure caused by some pipelines being too long or too short. It effectively reduces inconsistent negative pressure loss due to differences in pipeline length, resulting in more uniform negative pressure across all vacuum suction cups 200 and improving the consistency of the vacuum palletizer's adsorption effect. Furthermore, the equal-length pipeline design simplifies the design and manufacturing process. During manufacturing, standardized pipeline lengths facilitate production, reducing the complexity caused by pipelines of varying lengths, and also facilitating later maintenance and replacement. Additionally, the sub-negative pressure distribution blocks can be evenly arranged around the negative pressure distribution block, ensuring that the distance from each sub-negative pressure inlet 62 to the negative pressure outlet 53 is approximately the same, facilitating pipeline layout.

[0093] Combination Figure 1 and Figure 2 In some embodiments, multiple negative pressure distribution components 500 are provided, all of which are mounted on the movable bracket 100. The negative pressure input port 52 of each negative pressure distribution component 500 is connected to the vacuum pump, and the negative pressure output port 53 of each negative pressure distribution component 500 is connected to the vacuum suction cup 200.

[0094] Specifically, there can be two or three negative pressure distribution components 500, each equipped with a control valve 400. Each negative pressure distribution component 500 is connected to a certain number of vacuum suction cups 200. The vacuum suction cups 200 connected to one negative pressure distribution component 500 can be called a group of vacuum suction cups 200, and the number of vacuum suction cups 200 connected to each negative pressure distribution component 500 can be the same. This avoids connecting too many vacuum suction cups 200 to the same negative pressure distribution component 500, which would lose the effect of uniformly distributing negative pressure. Furthermore, because each group of vacuum suction cups 200 is equipped with an independent control valve 400, it can generate suction force independently. When handling materials with a vacuum palletizer, the first material can be grabbed and stacked using one group of vacuum suction cups 200. Then, the position of the moving support 100 can be changed, and the second material can be grabbed using the second group of vacuum suction cups 200. After grabbing multiple materials, they can be moved together to the desired position and then placed down one by one, which can improve the handling efficiency of the vacuum palletizer.

[0095] In some embodiments, the vacuum palletizer further includes multiple one-way valves (not shown in the figure), with one-way valves corresponding to vacuum suction cups 200. The one-way valves are located between the sub-negative pressure distribution component 600 and the vacuum suction cups 200. The one-way valves enable the gas in the vacuum suction cups 200 to flow to the vacuum pump when the negative pressure in the vacuum suction cups 200 reaches a preset value.

[0096] Specifically, a one-way valve can also be called a check valve or non-return valve. A one-way valve prevents gas backflow caused by external pressure changes during the suction process of the vacuum suction cup 200, thereby enhancing system stability. Furthermore, the one-way valve can be set to open only when the negative pressure within the vacuum suction cup 200 reaches a preset value, allowing the vacuum suction cup 200 to connect to the vacuum pump when there is a vacuum within it. Conversely, when there is no vacuum within the vacuum suction cup 200 (i.e., the vacuum suction cup 200 is not fully in contact with the material or is exposed to the atmosphere), the one-way valve isolates the vacuum suction cup 200 from the vacuum pump. This allows for timely disconnection of the connection between a vacuum suction cup 200 and the vacuum pump, even if the suction cup 200 is not damaged or not fully in contact with the material, preventing that suction cup 200 from continuously consuming negative pressure, increasing energy consumption, or even affecting the negative pressure of other vacuum suction cups 200, which could lead to material detachment.

[0097] Combination Figure 8 , Figure 9 and Figure 10 , Figure 8 This is a schematic diagram of the structure of the profile 11 disclosed in the embodiments of this application. Figure 9 This is a schematic diagram of the profile 11 from another perspective disclosed in the embodiments of this application. Figure 10 This is a schematic diagram of the structure of the profile 11 and the spacer connecting block 12 disclosed in an embodiment of this application. In some embodiments, the movable bracket 100 includes a plurality of profiles 11 and a plurality of spacer connecting blocks 12. The profiles 11 have mounting grooves 111; the plurality of spacer connecting blocks 12 are all disposed in the mounting grooves 111, and the vacuum suction cup 200 is connected to the spacer connecting blocks 12.

[0098] Specifically, the profile 11 can be an aluminum profile 11. During the forming process, the profile 11 can be provided with multiple mounting slots 111. The mounting slots 111 can cooperate with the spacer connecting block 12 to install the vacuum suction cup 200. This facilitates the installation and replacement of the vacuum suction cup 200, reduces maintenance time and costs, and makes it easier to adjust the position of the vacuum suction cup 200 along the extension direction of the profile 11. This increases the installation flexibility of the vacuum suction cup 200, enabling it to adapt to various material palletizing requirements and improving the versatility and adaptability of the vacuum palletizer.

[0099] Combination Figure 8 , Figure 9 and Figure 10In some embodiments, the mounting groove 111 has a receiving cavity 1111, a first groove 1112, a second groove 1113, and a third groove 1114; the first groove 1112 communicates with the receiving cavity 1111; the second groove 1113 communicates with the receiving cavity 1111 and is opposite to the first groove 1112 along the extension direction of the profile 11; the third groove 1114 communicates with the receiving cavity 1111, and along the length direction of the profile 11, the two ends of the third groove 1114 are respectively connected to the first groove 1112 and the second groove. 1113 is connected. Along the width direction of the profile 11, the width of the third slot 1114 is smaller than the width of the receiving cavity 1111. The spacer connecting block 12 has a snap-fit ​​part 121, a connecting part 122 and a mounting part 123. The snap-fit ​​part 121 is disposed in the receiving cavity 1111 and snaps into the third slot 1114. One end of the connecting part 122 is connected to the snap-fit ​​part 121, and the other end extends out of the third slot 1114. The mounting part 123 is connected to the connecting part 122, and the vacuum suction cup 200 is disposed on the mounting part 123.

[0100] Specifically, the snap-fit ​​portion 121 of the spacer connecting block 12 can be inserted into the receiving cavity 1111 from the first slot 1112 or the second slot 1113, and the width of the snap-fit ​​portion 121 is smaller than the third slot 1114, so it can be snapped in place by the third slot 1114, thereby installing the spacer connecting block 12 into the mounting slot 111. The vacuum suction cup 200 is installed on the mounting portion 123 of the spacer connecting block 12, and then installed on the movable bracket 100 through the spacer connecting block 12. This facilitates the installation and replacement of the vacuum suction cup 200, reduces maintenance time and costs, and facilitates the adjustment of the position of the vacuum suction cup 200 along the extension direction of the profile 11, increasing the installation flexibility of the vacuum suction cup 200. This allows the vacuum suction cup 200 to adapt to various material palletizing requirements, improving the versatility and adaptability of the vacuum palletizer. In addition, mounting plates 300 can be installed at both ends of the profile 11. After the disassembly and assembly of the spacer connecting block 12 are completed, the mounting groove 111 is sealed by the mounting plates 300 to prevent foreign objects from entering the mounting groove 111.

[0101] In some embodiments, the vacuum pump is a screw vacuum pump.

[0102] Specifically, the core component of a screw vacuum pump is a pair of screws rotating in opposite directions, driven by synchronous gears. Inside the pump chamber, the male rotor rotates counter-clockwise, and the female rotor rotates clockwise. As the rotors rotate, gas is drawn in through the inlet and enters the enclosed space formed by the screw teeth and the pump chamber. With each rotation of the screw, the inter-tooth volume gradually decreases, compressing the gas, which is then discharged through the exhaust port. Because there are gaps between the screw and the pump chamber, and between the screws themselves, there is no direct metal-to-metal contact, resulting in smooth operation, low noise, and no need for lubrication. Furthermore, compared to Roots pumps and claw pumps, screw vacuum pumps offer better energy efficiency.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A vacuum palletizing machine, characterized in that, include: Fixed bracket; A movable support (100) is movably mounted on the fixed support; Multiple vacuum suction cups (200) are disposed on the movable support (100) for adsorbing materials; A vacuum pump is mounted on the fixed bracket and is connected to the vacuum suction cup (200). The vacuum pump is used to generate negative pressure. A control valve (400) is disposed between the vacuum pump and the vacuum suction cup (200). The control valve (400) can connect the vacuum suction cup (200) and the vacuum pump, or isolate the vacuum suction cup (200) from the vacuum pump and connect the vacuum suction cup (200) to the outside atmosphere. A negative pressure distribution component (500) is disposed on the movable support (100), the negative pressure distribution component (500) having: Negative pressure chamber (51); The negative pressure input port (52) is connected to the negative pressure chamber (51) and the vacuum pump; Multiple negative pressure output ports (53) are connected to the negative pressure chamber (51) and the vacuum suction cup (200).

2. The vacuum palletizing machine according to claim 1, characterized in that, The vacuum palletizer also includes: Multiple sub-negative pressure distribution components (600) are disposed on the movable support (100), and the sub-negative pressure distribution components (600) include: Sub-negative pressure chamber (61); The negative pressure input port (62) is connected to the negative pressure chamber (51) and the negative pressure output port (53) of the negative pressure distribution component (500); Multiple sub-negative pressure output ports (63) are connected to the sub-negative pressure chamber (61) and the vacuum suction cup (200).

3. The vacuum palletizing machine according to claim 2, characterized in that, The diameter of the negative pressure output port (53) is smaller than the diameter of the negative pressure input port (52); The diameter of the sub-negative pressure output port (63) is smaller than that of the sub-negative pressure input port (62); The diameter of the sub-negative pressure input port (62) matches the diameter of the negative pressure output port (53).

4. The vacuum palletizing machine according to claim 2, characterized in that, The sub-negative pressure chamber (61) extends along a first direction (a) and has a first end (611) and a second end (612) opposite to each other along the first direction (a); Multiple sub-negative pressure output ports (63) are arranged along the first direction (a) between the first end (611) and the second end (612) of the sub-negative pressure cavity (61); The number of sub-negative pressure input ports (62) is two, and the two sub-negative pressure input ports (62) are respectively disposed at the first end (611) and the second end (612) of the sub-negative pressure cavity (61).

5. The vacuum palletizing machine according to any one of claims 2-4, characterized in that, The lengths of the connecting pipes between each of the sub-negative pressure inlet (62) and the corresponding negative pressure outlet (53) are the same.

6. The vacuum palletizing machine according to any one of claims 1-4, characterized in that, Multiple negative pressure distribution components (500) are provided, all of which are mounted on the movable bracket (100). The negative pressure input port (52) of each negative pressure distribution component (500) is connected to the vacuum pump, and the negative pressure output port (53) of each negative pressure distribution component (500) is connected to the vacuum suction cup (200).

7. The vacuum palletizing machine according to any one of claims 2-4, characterized in that, The vacuum palletizer also includes: Multiple one-way valves are provided, each corresponding to a vacuum suction cup (200). The one-way valves are located between the sub-negative pressure distribution component (600) and the vacuum suction cup (200). The one-way valves enable the gas in the vacuum suction cup (200) to flow to the vacuum pump when the negative pressure in the vacuum suction cup (200) reaches a preset value.

8. The vacuum palletizing machine according to any one of claims 1-4, characterized in that, The movable support (100) includes: Multiple profiles (11), each profile (11) having a mounting groove (111); Multiple spacer connecting blocks (12) are disposed in the mounting groove (111), and the vacuum suction cup (200) is connected to the spacer connecting blocks (12).

9. The vacuum palletizing machine according to claim 8, characterized in that, The mounting slot (111) has: Receptacle (1111); The first slot (1112) is connected to the receiving cavity (1111); The second slot (1113) communicates with the receiving cavity (1111) and is opposite to the first slot (1112) along the extension direction of the profile (11); The third slot (1114) is connected to the receiving cavity (1111). Along the length direction of the profile (11), the two ends of the third slot (1114) are connected to the first slot (1112) and the second slot (1113) respectively. Along the width direction of the profile (11), the width of the third slot (1114) is smaller than the width of the receiving cavity (1111). The spacer connecting block (12) has: The snap-fit ​​part (121) is disposed in the receiving cavity (1111) and snaps into the third slot (1114); A connecting part (122), one end of which is connected to the snap-fit ​​part (121), and the other end extends out of the third slot (1114); Mounting part (123) is connected to the connecting part (122), and the vacuum suction cup (200) is disposed on the mounting part (123).

10. The vacuum palletizing machine according to claim 1, characterized in that, The vacuum pump is a screw vacuum pump.

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