Separately controlled variable distance chuck

Abstract

The utility model relates to the technical field of sucking disc discloses a kind of sub-control variable-distance sucking disc, including support structure, multiple rows sucking disc assembly, vacuumizing component and drive component, wherein, the support structure is provided with slide rail along the both sides of first direction;Multiple rows the sucking disc assembly is spaced apart on the support structure along second direction, each row the sucking disc assembly includes multiple first sucking disc group and second sucking disc group alternately arranged, each row the sucking disc assembly is provided with sliding structure along the both ends of first direction, the sliding structure with the slide rail sliding connection;The vacuumizing component is set on the support structure, drive component can drive the sucking disc assembly along the both sides of slide rail second direction center point along slide rail simultaneously towards center point close or away from center point, the spacing between adjacent sucking disc assembly can be adjusted without manually adjusting, and the interval placement of material is realized by respectively placing first sucking disc group and second sucking disc group, guarantee the neat interval arrangement of material, subsequent drying is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of suction cup technology, and in particular to a separately controlled variable distance suction cup. Background Technology

[0002] A vacuum suction cup, also known as a vacuum lifter, is a pneumatic actuator that uses the principle of vacuum to adsorb objects. It typically consists of a suction cup body, a vacuum generator, connecting pipes, and a control system. Its working principle involves removing the air between the suction cup and the surface of the object being adsorbed, creating a vacuum negative pressure. Atmospheric pressure then presses the suction cup firmly against the object's surface, thus enabling the gripping, handling, or securing of the object.

[0003] For example, Chinese utility model patent with publication number CN219854621U discloses a suction cup equidistant variable distance mechanism.

[0004] In the above technical solution, a servo motor drives a belt assembly to rotate a screw shaft, causing the equally spaced drive components on the frame to move the vacuum suction cup components along the screw shaft trajectory at equal intervals for subsequent drying operations. If the spacing is too close, the drying effect will be poor, so the spacing needs to be adjusted to achieve a good drying effect. However, if variable spacing adjustment is desired, manual adjustment is required when the spacing needs to be reduced, and the suction cups on both sides may move in an asymmetrical direction, causing an imbalance in force when gripping objects. Moreover, in the existing technical solution, each suction cup is independently connected to an air line, and the arrangement of the air lines is very messy, affecting the appearance and practicality. Utility Model Content

[0005] To overcome at least one of the defects described in the prior art, this utility model provides a separately controlled variable-pitch suction cup. The driving assembly can drive the suction cup assemblies on both sides of the center point along the slide rail in the second direction to move simultaneously toward or away from the center point. The spacing between adjacent suction cup assemblies can be adjusted without manual adjustment. Furthermore, by placing the first suction cup group and the second suction cup group respectively, the materials can be placed at intervals, ensuring that the materials are arranged in a regular and spaced manner for convenient subsequent drying.

[0006] The technical solution of this utility model is implemented as follows: A controllable variable-pitch suction cup includes a support structure, multiple rows of suction cup assemblies, a vacuuming assembly, and a driving assembly. The support structure has slide rails on both sides along a first direction. Multiple rows of suction cup assemblies are spaced apart on the support structure along a second direction. Each row of suction cup assemblies includes multiple alternately arranged first and second suction cup groups. Each row of suction cup assemblies has sliding structures at both ends along the first direction, and these sliding structures are slidably connected to the slide rails. The vacuuming assembly includes a vacuuming device, a first solenoid valve, and a second solenoid valve. One end of the first solenoid valve is connected to the vacuuming device, and the other end is connected to the first suction cup group. One end of the second solenoid valve is connected to the vacuuming device, and the other end is connected to the second suction cup group. The driving assembly is disposed on the support structure and is used to drive the suction cup assemblies on both sides of the center point of the slide rails along the second direction to move simultaneously towards or away from the center point of the second direction.

[0007] Based on the above technical solutions, preferably, the driving assembly includes a hydraulic device, a synchronous connecting rod, a first linkage assembly, and a second linkage assembly. One end of the first linkage assembly is pivotally connected to one end of the synchronous connecting rod, and the other end of the first linkage assembly is pivotally connected to all the suction cup assemblies on one side of the center point along the second direction. One end of the second linkage assembly is pivotally connected to the other end of the synchronous connecting rod, and the other end of the second linkage assembly is pivotally connected to all the suction cup assemblies on the other side of the center point along the second direction. The hydraulic device is mounted on the support structure, and its output end is pivotally connected to one end of the synchronous connecting rod, so that the hydraulic device can drive the synchronous connecting rod to rotate circumferentially.

[0008] Based on the above technical solutions, preferably, one end of the synchronizing link is provided with a first connection point pivotally connected to the first linkage component and a second connection point pivotally connected to the output end of the hydraulic device, and the other end of the synchronizing link is provided with a third connection point pivotally connected to the second linkage component.

[0009] Based on the above technical solutions, preferably, the first linkage component and the second linkage component are arranged in a centrally symmetrical manner with the synchronous connecting rod as the axis of symmetry.

[0010] Based on the above technical solutions, preferably, each row of suction cup assemblies includes a first air guide tube and a second air guide tube arranged in parallel, wherein the first air guide tube is connected to the first suction cup group; the second air guide tube is connected to the second suction cup group; and the sliding structure is disposed on the top of the first air guide tube and the second air guide tube.

[0011] Based on the above technical solutions, preferably, the vacuum assembly further includes a first branch pipe, a plurality of first air pipes, a second branch pipe, and a plurality of second air pipes, wherein the first branch pipe is connected to the air inlet of the first solenoid valve; one end of the plurality of first air pipes is connected to the first branch pipe, and the other end of the plurality of first air pipes is connected to the first air guide pipe; the second branch pipe is connected to the air inlet of the second solenoid valve; one end of the plurality of second air pipes is connected to the second branch pipe, and the other end of the plurality of second air pipes is connected to the second air guide pipe.

[0012] Based on the above technical solutions, preferably, pressure gauges are installed on the first branch pipe and the second branch pipe.

[0013] Based on the above technical solutions, preferably, the hydraulic device is at least one of a pneumatic cylinder, a hydraulic rod, or an oil cylinder.

[0014] Based on the above technical solutions, preferably, in the slide rail and the sliding structure, one is a concave groove structure and the other is a convex protrusion structure, and the groove structure and the protrusion structure slide in cooperation.

[0015] In summary, the variable-pitch suction cup provided by this utility model has the following advantages over the prior art: (1) By driving the suction cup components on both sides of the center point of the second direction along the slide rail, the suction cup components can move towards or away from the center point of the second direction along the slide rail simultaneously. This can accurately and symmetrically achieve the variable distance adjustment of the suction cup components, improve the stability and reliability of gripping, and also adjust the spacing between materials, providing convenience for the subsequent drying process. (2) By setting the first solenoid valve to connect with the first suction cup group and the second solenoid valve to connect with the second suction cup group, the staggered placement of the first suction cup group and the second suction cup group can accurately separate the materials while maintaining the neat arrangement of the materials. No additional equipment adjustment is required, so that the materials can be seamlessly connected from the adsorption stage to the subsequent process, improving the continuity and efficiency of the production process. (3) The hydraulic device drives the synchronous connecting rod to rotate circumferentially, and then drives the suction cup components on both sides to move through the first linkage component and the second linkage component. This structure is reasonably designed and can achieve precise control of the suction cup component pitch by controlling the hydraulic device. It is easy to operate and has high structural stability. (4) The number of pipelines used in the first and second trachea is small, the structure is simple and practical, and the failure rate is low. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the driving component according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the synchronous linkage structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the planar structure of an embodiment of the present utility model; The meanings of the reference numerals in the attached drawings are as follows: 1. Support structure; 11. Connecting rod; 12. Support frame; 2. Suction cup assembly; 21. First suction cup group; 22. Second suction cup group; 221. Suction cup; 23. Sliding structure; 24. First air guide pipe; 25. Second air guide pipe; 3. Vacuum assembly; 31. First solenoid valve; 32. Second solenoid valve; 33. First branch pipe; 331. Pressure gauge; 34. First air pipe; 35. Second branch pipe; 36. Second air pipe; 4. Drive assembly; 41. Hydraulic device; 42. Synchronous connecting rod; 421. First connection point; 422. Second connection point; 423. Third connection point; 4231. Pivot; 424. Rod body; 43. First linkage assembly; 431. First linkage plate; 44. Second linkage assembly; 441. Second linkage plate; 5. Slide rail. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] See Figures 1-4 This utility model discloses a controllable variable pitch suction cup 221, including a support structure 1, a suction cup assembly 2, a vacuum assembly 3, and a drive assembly 4.

[0020] See Figure 1As shown, in this embodiment, the support structure 1 includes four connecting rods 11 that are connected end to end to form a rectangular frame, and a support frame 12 disposed above the connecting rods 11. The support structure 1 is provided with slide rails 5 on both sides along the first direction. Specifically, the slide rails 5 are bolted to the two connecting rods 11 at both ends of the first direction. The rectangular structure can withstand the weight of each part such as the suction cup assembly 2, the vacuum assembly 3, and the drive assembly 4, as well as various external forces generated during the gripping and handling of objects, ensuring that the entire split-control variable-pitch suction cup 221 will not shake or deform during operation, thereby ensuring the accuracy of adsorption and handling.

[0021] See Figure 1 As shown, in this embodiment, the suction cup assembly 2 is arranged in multiple rows, with the multiple rows of suction cup assemblies 2 spaced apart along the second direction on the support structure 1. Each row of suction cup assemblies 2 has a sliding structure 23 at both ends along the first direction, which is located above the suction cup assembly 2 and is slidably connected to the slide rail 5. The multiple rows of suction cup assemblies 2 allow for the simultaneous adsorption of multiple materials, improving production efficiency and significantly enhancing the stability and reliability of the adsorption.

[0022] Specifically, in this embodiment, when the number of multiple rows of suction cup components 2 is even, the suction cup components 2 are symmetrically arranged along the center point of the second direction of the slide rail 5. This arrangement allows the suction cup components 2 on both sides to apply suction forces of equal magnitude and opposite direction when adsorbing objects, thereby forming a good force balance. When the number of multiple rows of suction cup components 2 is odd, one suction cup component 2 is located at the center point of the second direction of the slide rail 5, and the remaining suction cup components 2 are symmetrically arranged along the center point of the second direction of the slide rail 5. The suction cup component 2 at the center point can play a role in stable support, while the suction cup components 2 symmetrically distributed on both sides can move stably along the suction cup component 2 at the center point, achieving a good movement effect.

[0023] See Figure 1As shown, in this embodiment, each row of suction cup assemblies 2 includes multiple first suction cup groups 21, multiple second suction cup groups 22, a first air guide tube 24, and a second air guide tube 25. The first air guide tube 24 and the second air guide tube 25 are arranged side by side below the connecting rod 11. A sliding structure 23 is arranged above the first air guide tube 24 and the second air guide tube 25, and the sliding structure 23 is fixedly connected to the first air guide tube 24 and the second air guide tube 25 by bolts. The first suction cup groups 21 and the second suction cup groups 22 are arranged alternately. The first air guide tube 24 is connected to the first suction cup group 21, and the second air guide tube 25 is connected to the second suction cup group 22. In this embodiment, both the first suction cup group 21 and the second suction cup group 22 include three suction cups 221; the first air guide tube 24 is connected to the first suction cup group 21, and the second air guide tube 25 is connected to the second suction cup group 22. The tube 24 is connected to the first suction cup group 21, and the second air guide tube 25 is connected to the second suction cup group 22. This design allows the first suction cup group 21 and the second suction cup group 22 to be supplied with air independently. In actual use, the first suction cup group 21 adsorbs materials while the second suction cup group 22 adsorbs materials simultaneously. Both the first suction cup group 21 and the second suction cup group 22 include three suction cups 221, increasing the redundancy of adsorption. When facing objects with uneven surfaces or local defects, the three suction cups 221 can work simultaneously, compensating for each other to ensure that at least some of the suction cups 221 can make close contact with the object surface, providing reliable adsorption force and ensuring the stability of adsorption. This fault tolerance improves the adaptability of the equipment to materials and the success rate of adsorption. In this embodiment, each row of suction cup assemblies 2 is used to adsorb different materials. In other embodiments, they can also be used to adsorb the same material. The choice can be made according to actual needs.

[0024] Specifically, in this embodiment, one of the slide rail 5 and the sliding structure 23 is a concave groove structure, and the other is a convex protrusion structure. The groove structure and the protrusion structure slide together, and the groove structure provides a clear movement track for the protrusion structure. The protrusion structure can only slide within the range defined by the groove, which effectively restricts the displacement and rotation of the sliding structure 23 in the direction perpendicular to the sliding direction. This ensures that the suction cup assembly 2 can move accurately along the predetermined straight line direction, improves the accuracy of the variable pitch adjustment, and ensures the accuracy of the position of the suction cup 221 when gripping materials.

[0025] See Figure 1 and Figure 4As shown, in this embodiment, the vacuum assembly 3 is mounted on the support structure 1. The vacuum assembly 3 includes a vacuum device, a first solenoid valve 31, a second solenoid valve 32, a first branch pipe 33, a second branch pipe 35, multiple first air pipes 34, and multiple second air pipes 36. In this embodiment, the vacuum device is an external vacuum pump, vacuum generator, or central vacuum system. Specifically, the first solenoid valve 31 is located on one side of the support frame 12 along the first direction, and the second solenoid valve 32 is located on the other side of the support frame 12 along the first direction. One end of the first solenoid valve 31 is connected to the vacuum device, and the other end is connected to the first suction cup group 21. One end of the second solenoid valve 32 is connected to the vacuum device, and the other end is connected to the second suction cup group 22. The number of vacuum devices can be one, that is, both the first solenoid valve 31 and the second solenoid valve 32 are connected to the same vacuum device; or the number of vacuum devices can be two, that is, the first solenoid valve 31 and the second solenoid valve 32 are respectively connected to two different vacuum devices. Valve 31 and the second solenoid valve 32 are connected to the vacuuming device via pipes. A first branch pipe 33 is located on one side of the support frame 12 along the first direction, on the same side as the first solenoid valve 31, and connected to the air inlet of the first solenoid valve 31. A second branch pipe 35 is located on the other side of the support frame 12 along the first direction, on the same side as the second solenoid valve 32, and connected to the air inlet of the second solenoid valve 32. One end of each of the plurality of first air pipes 34 is connected to the first... One end of tube 33 is connected to the first air tube 34, and the other end of multiple first air tubes 34 is connected to the first air guide tube 24. One end of multiple second air tubes 36 is connected to the second branch tube 35, and the other end of multiple second air tubes 36 is connected to the second air guide tube 25. Specifically, the number of first air tubes 34 is the same as the number of first air guide tubes 24, and the first air tubes 34 and the first air guide tubes 24 are set in a one-to-one correspondence. The number of second air tubes 36 is the same as the number of second air guide tubes 25, and the second air tubes 36 and the second air guide tubes 25 are set in a one-to-one correspondence.

[0026] Specifically, the connections between the first air pipe 34 and the first branch pipe 33, the first air pipe 34 and the first air guide pipe 24, the second air pipe 36 and the second branch pipe 35, and the second air pipe 36 and the second air guide pipe 25 are all sealed. The sealed connections ensure that the gas can only flow along a predetermined path, thereby maintaining a stable low-pressure environment within the system and ensuring a vacuum environment.

[0027] In this embodiment, it should also be noted that the first air pipe 34 and the second air pipe 36 are corrugated telescopic air pipes. Since the first air pipe 34 is connected to the first air guide pipe 24 and the second air pipe 36 is connected to the second air guide pipe 25, the first air guide pipe 24 and the second air guide pipe 25 need to move with the slide rail 5. The telescopic air pipe has good flexibility and extensibility, and can automatically adjust its length and shape during the movement of the equipment to maintain a stable connection with each component, avoiding vacuum leakage caused by connection problems and ensuring the reliability of adsorption. In other embodiments, the first air pipe 34 and the second air pipe 36 can also be ordinary air pipes, and their length is set to ensure the maximum moving distance of the first suction cup group 21 and the second suction cup group 22, which can also achieve the corresponding functional effect.

[0028] In this embodiment, it should also be noted that pressure gauges 331 are provided on the first branch pipe 33 and the second branch pipe 35. Pressure gauges 331 can directly display the pressure values ​​in the first branch pipe 33 and the second branch pipe 35, allowing operators to understand the current pressure status of the vacuum system in real time and intuitively. In addition, operators can also understand the pressure change trend by observing the swing of the pointer or the change of the numbers on the pressure gauge 331, and can promptly detect abnormal pressure fluctuations.

[0029] See Figure 2 As shown, in this embodiment, the driving component 4 is disposed on the support structure 1. The driving component 4 is used to drive the suction cup components 2 on both sides of the center point of the second direction along the slide rail 5 to move simultaneously toward or away from the center point of the second direction. Specifically, the driving component 4 includes a hydraulic device 41, a synchronous connecting rod 42, a first linkage component 43, and a second linkage component 44. The hydraulic device 41 is disposed on the support structure 1. Specifically, the hydraulic device 41 is connected to the inner side of one of the connecting rods 11. Specifically, the hydraulic device 41 is rotatably connected to the connecting rod 11. The synchronous connecting rod 42 is disposed between the four connecting rods 11. The driving component 4 drives the suction cup components 2 to move along the slide rail 5 in a specific direction. This design allows the suction cup components 2 to flexibly adjust their position according to actual needs, achieving precise adsorption and handling.

[0030] In this design, one end of the first linkage component 43 is pivotally connected to one end of the synchronous connecting rod 42, and the other end of the first linkage component 43 is pivotally connected to all the suction cup components 2 on one side of the center point along the second direction. One end of the second linkage component 44 is pivotally connected to one end of the synchronous connecting rod 42, and the other end of the second linkage component 44 is pivotally connected to all the suction cup components 2 on the other side of the center point along the second direction. The hydraulic device 41 serves as a power source, providing a large driving force to meet the needs of the suction cup components 2 in moving heavy objects. Its rotatable connection with the inner side of the connecting rod 11 ensures effective transmission of driving force while also giving the connection a certain degree of flexibility, allowing it to adapt to different angles of movement. This reduces stress and wear caused by rigid connections, improving the reliability and service life of the connection.

[0031] When the number of suction cup assemblies 2 is even, specifically, the first linkage assembly 43 includes multiple first linkage plates 431, wherein the number of first linkage plates 431 is half the number of suction cup assemblies 2, and one end of all the first linkage plates 431 is connected to the synchronous link 42, and the other end of one first linkage plate 431 is pivotally connected to one suction cup assembly 2. Among the suction cup assemblies 2 along the center point of the second direction, the suction cup assembly 2 near the center point of the second direction is pivotally connected to the end near the center point of the synchronous link 42 via the first linkage plate 431, and the suction cup assembly 2 away from the center point of the second direction is pivotally connected to the end near the synchronous link 42 via the first linkage plate 431. The second linkage assembly 44 includes multiple second linkage plates 441, wherein the number of second linkage plates 441 is half the number of suction cup assemblies 2, and one end of all the second linkage plates 441 is connected to the synchronous link 42, and the other end of one second linkage plate 441 is pivotally connected to one suction cup assembly 2. In the suction cup assembly 2 on the other side of the center point of the second direction, the suction cup assembly 2 near the center point of the second direction is pivotally connected to the end near the center point of the synchronous link 42 via the second linkage plate 441, and the suction cup assembly 2 away from the center point of the second direction is pivotally connected to one end near the synchronous link 42 via the second linkage plate 441. When there is an even number of suction cup assemblies 2, this arrangement of linkage assemblies ensures that each suction cup assembly 2 is subjected to force evenly. By reasonably allocating the connection positions of the linkage plates, the movement of the synchronous link 42 is evenly transmitted to each suction cup assembly 2, ensuring the stability and consistency of the suction cup assembly 2 during movement.

[0032] When the number of suction cup assemblies 2 is odd, the suction cup assembly 2 located at the center point is not connected to the first linkage plate 431 and the second linkage plate 441. Specifically, the first linkage assembly 43 includes multiple first linkage plates 431, wherein the number of first linkage plates 431 is half the number of suction cup assemblies 2 and rounded down, and one end of all the first linkage plates 431 is connected to the synchronous link 42, and the other end of one first linkage plate 431 is pivotally connected to one suction cup assembly 2. Among the suction cup assemblies 2 along the center point side of the second direction, the suction cup assembly 2 near the center point of the second direction is pivotally connected to the end near the center point of the synchronous link 42 through the first linkage plate 431, and the suction cup assembly 2 away from the center point of the second direction is pivotally connected to the end near the synchronous link 42 through the first linkage plate 431. The second linkage component 44 includes multiple second linkage plates 441, the number of which is half the number of suction cup components 2 and rounded down. One end of each second linkage plate 441 is connected to a synchronizing link 42, and the other end of each second linkage plate 441 is pivotally connected to a suction cup component 2. Among the suction cup components 2 on the other side of the center point in the second direction, those closer to the center point are pivotally connected to those closer to the center point of the synchronizing link 42 via second linkage plates 441, while those farther from the center point are pivotally connected to those closer to the synchronizing link 42 via second linkage plates 441. This design cleverly avoids the suction cup components 2 at the center point, and by reasonably adjusting the number and connection method of the linkage plates, effective driving of other suction cup components 2 can still be achieved.

[0033] It should also be noted that the first linkage component 43 and the second linkage component 44 are centrally symmetrically arranged around the center point along the second direction. Due to this central symmetry, the first linkage component 43 and the second linkage component 44 can move in the same regularity and rhythm under the drive of the hydraulic device 41. This synchronicity ensures that the suction cup components 2 on both sides of the center point along the second direction can move simultaneously and at equal distances towards or away from the center point, achieving precise coordinated operation of the suction cup components 2. In this application, the movement of the first suction cup group 21 and the second suction cup group 22 in the second direction is synchronous and continuously variable. The movement of the first suction cup group 21 and the second suction cup group 22 in the first direction is a fixed movement of twice the distance, while the synchronous and continuous variable distance in the second direction is provided by a single power source, resulting in a faster and more precise response. Moreover, the first suction cup group 21 and the second suction cup group 22 are detachably connected to the support structure 1, allowing for periodic disassembly and cleaning to prevent internal blockage of the first suction cup group 21 and the second suction cup group 22, which would affect the vacuum suction effect.

[0034] Specifically, the output end of the hydraulic device 41 is pivotally connected to one end of the synchronous connecting rod 42, so that the hydraulic device 41 can drive the synchronous connecting rod 42 to rotate circumferentially. It should also be noted that the center point of the synchronous connecting rod 42 is rotatably connected to the support frame 12 via a rod body 424. The pivotal connection between the output end of the hydraulic device 41 and one end of the synchronous connecting rod 42 allows the hydraulic device 41 to flexibly drive the synchronous connecting rod 42 to rotate circumferentially.

[0035] See Figure 3 As shown, in this embodiment, one end of the synchronizing rod is provided with a first connection point 421 that is pivotally connected to the first linkage plate 431 of the first linkage component 43 and a second connection point 422 that is pivotally connected to the output end of the hydraulic device 41. The other end of the synchronizing rod 42 is provided with a third connection point 423 that is pivotally connected to the second linkage plate 441 of the second linkage component 44. A pivot 4231 is provided in the first connection point 421, the second connection point 422 and the third connection point 423, and the pivoting effect is achieved through the pivot 4231.

[0036] When the material needs to be placed after adsorption, the drive component 4 adjusts the spacing between the multi-row suction cup components 2. First, the material of the first suction cup group 21 in the suction cup component 2 is placed. After placement, the whole is moved to the next placement position, and then the material of the second suction cup group 22 in the suction cup component 2 is placed, so as to achieve a matrix-style interval distribution, which is convenient for subsequent processing.

[0037] The hydraulic device 41 is at least one of a pneumatic cylinder, a hydraulic cylinder, or an oil cylinder, providing stable power output and offering more options.

[0038] Specific implementation steps

[0039] When it is necessary to adjust the spacing between the suction cup assemblies 2, the hydraulic device 41 is activated. The output end of the hydraulic device 41 drives the synchronous connecting rod 42 to rotate circumferentially, thereby achieving synchronous adjustment of the spacing between the suction cup assemblies 2. After the suction cup assemblies 2 are adjusted to a suitable spacing, the first solenoid valve 31 is opened. The first solenoid valve 31 is connected to the first air guide pipe 24 through the first branch pipe 33 and multiple first air pipes 34. The vacuum device evacuates the air from the first suction cup assembly 21, thereby providing vacuum suction force for the first suction cup assembly 21. At the same time as opening the first solenoid valve 31, the second solenoid valve 32 is opened. Valve 32 is connected to the second branch pipe 35 and multiple second air pipes 36 and second air guide pipe 25. The vacuum device evacuates the air from the second suction cup group 22, thereby providing vacuum suction force to the second suction cup group 22 to achieve the gripping effect of materials. The hydraulic device 41 drives the synchronous connecting rod 42 to move to achieve the effect of variable distance. After the materials are gripped, they are moved to the placement area. First, the materials of the first suction cup group 21 in the suction cup assembly 2 are placed. After placement, the whole assembly is moved to the next placement position, and then the materials of the second suction cup group 22 in the suction cup assembly 2 are placed. This achieves the effect of separate control and variable distance.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A separately controlled variable pitch suction cup, characterized in that, It includes a support structure (1), a multi-row suction cup assembly (2), a vacuum assembly (3), and a drive assembly (4), wherein, The support structure (1) is provided with slide rails (5) on both sides along the first direction; Multiple rows of suction cup assemblies (2) are spaced apart on the support structure (1) along the second direction. Each row of suction cup assemblies (2) includes multiple alternating first suction cup groups (21) and second suction cup groups (22). Each row of suction cup assemblies (2) has a sliding structure (23) at both ends along the first direction. The sliding structure (23) is slidably connected to the slide rail (5). The vacuum assembly (3) includes a vacuum device, a first solenoid valve (31) and a second solenoid valve (32). One end of the first solenoid valve (31) is connected to the vacuum device and the other end is connected to the first suction cup group (21). One end of the second solenoid valve (32) is connected to the vacuum device and the other end is connected to the second suction cup group (22). The driving component (4) is disposed on the support structure (1). The driving component (4) is used to drive the suction cup components (2) on both sides of the center point of the second direction along the slide rail (5) to move simultaneously towards or away from the center point of the second direction along the slide rail (5).

2. The separately controlled variable pitch suction cup according to claim 1, characterized in that, The drive assembly (4) includes a hydraulic device (41), a synchronous connecting rod (42), a first linkage assembly (43), and a second linkage assembly (44), wherein, One end of the first linkage component (43) is pivotally connected to one end of the synchronous link (42), and the other end of the first linkage component (43) is pivotally connected to all the suction cup components (2) on one side of the center point along the second direction; One end of the second linkage component (44) is pivotally connected to the other end of the synchronous link (42), and the other end of the second linkage component (44) is pivotally connected to all the suction cup components (2) on the other side of the center point along the second direction; The hydraulic device (41) is mounted on the support structure (1). The output end of the hydraulic device (41) is pivotally connected to one end of the synchronous connecting rod (42) so that the hydraulic device (41) can drive the synchronous connecting rod (42) to rotate circumferentially.

3. A controllable variable-pitch suction cup according to claim 2, characterized in that, One end of the synchronous link (42) is provided with a first connection point (421) pivotally connected to the first linkage component (43) and a second connection point (422) pivotally connected to the output end of the hydraulic device (41), and the other end of the synchronous link (42) is provided with a third connection point (423) pivotally connected to the second linkage component (44).

4. A controllable variable-pitch suction cup according to claim 2, characterized in that, The first linkage component (43) and the second linkage component (44) are arranged in a centrally symmetrical manner with the synchronous link (42) as the axis of symmetry.

5. A controllable variable pitch suction cup according to claim 1, characterized in that, Each row of suction cup assemblies (2) includes a first air guide tube (24) and a second air guide tube (25) arranged in parallel, wherein, The first air guide tube (24) is connected to the first suction cup assembly (21); The second air guide tube (25) is connected to the second suction cup assembly (22); The sliding structure (23) is disposed on the top of the first air guide tube (24) and the second air guide tube (25).

6. A controllable variable-pitch suction cup according to claim 5, characterized in that, The vacuum assembly (3) further includes a first branch pipe (33), multiple first air pipes (34), a second branch pipe (35), and multiple second air pipes (36), wherein, The first branch pipe (33) is connected to the air inlet end of the first solenoid valve (31); One end of each of the first trachea (34) is connected to the first branch tube (33), and the other end of each of the first trachea (34) is connected to the first air guide tube (24). The second branch pipe (35) is connected to the air inlet end of the second solenoid valve (32); One end of each of the second trachea (36) is connected to the second branch tube (35), and the other end of each of the second trachea (36) is connected to the second air guide tube (25).

7. A controllable variable pitch suction cup according to claim 6, characterized in that, Pressure gauges (331) are installed on the first branch pipe (33) and the second branch pipe (35).

8. A controllable variable pitch suction cup according to claim 1, characterized in that, Of the slide rail (5) and the sliding structure (23), one is a concave groove structure and the other is a convex protrusion structure, and the groove structure and the protrusion structure slide together.

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