Negative pressure adsorption device with adjustable adsorption area

Abstract

The utility model discloses a negative pressure adsorption device with an adjustable adsorption area, and relates to the technical field of negative pressure adsorption devices. The device specifically comprises an adsorption box body, wherein a plurality of through holes are formed in one surface, facing a to-be-adsorbed part, of the adsorption box body in an array manner; the at least one negative pressure pipeline is connected to the adsorption box body, so that a negative pressure environment is formed in the adsorption box body; and the adjusting unit is arranged on one side of the through holes and used for changing the conduction number of the through holes, so that the width of an adsorption surface formed by the conducted through holes is matched with the width of the to-be-adsorbed part, and vacuum leakage is avoided when the negative pressure adsorption device adapts to the to-be-adsorbed parts with different sizes. According to the negative pressure adsorption device, the layout of adsorption holes can be automatically adjusted according to the sizes of different products, negative pressure leakage is avoided, and the stability, the production efficiency and the product quality of a production line are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of negative pressure adsorption devices, and in particular to a negative pressure adsorption device with adjustable adsorption area. Background Technology

[0002] Currently, negative pressure adsorption technology is widely used in various automated production equipment, especially in the battery manufacturing industry. Negative pressure adsorption devices are commonly used in multiple stages such as electrode cutting, adhesive application, and dust removal. Through negative pressure adsorption, materials can be effectively adsorbed onto a platform for precise handling, thereby improving production efficiency and product quality.

[0003] However, the positions of the adsorption holes in traditional equipment are usually fixed. This means that when processing products of different sizes, the adsorption holes cannot completely cover the product surface, causing localized negative pressure leakage in the negative pressure adsorption chamber. Due to this leakage, the negative pressure adsorption effect is significantly reduced. Simultaneously, the equipment will frequently trigger negative pressure abnormality alarms, leading to equipment shutdowns, production interruptions, and severely impacting production cycle time.

[0004] Therefore, how to enable the negative pressure adsorption device to automatically adjust the layout of the adsorption holes according to the size of different products, avoid negative pressure leakage, and improve the stability, efficiency, and quality of the production line has become an urgent technical challenge. Utility Model Content

[0005] The main purpose of this invention is to provide a negative pressure adsorption device with adjustable adsorption area, which aims to enable the negative pressure adsorption device to automatically adjust the layout of the adsorption holes according to the size of different products, avoid negative pressure leakage, and improve the stability, production efficiency and product quality of the production line.

[0006] To achieve the above objectives, this utility model proposes a negative pressure adsorption device with adjustable adsorption area, comprising:

[0007] The adsorption box has multiple through holes arranged in an array on the side of the adsorption box facing the object to be adsorbed.

[0008] At least one negative pressure pipe is connected to the adsorption chamber to create a negative pressure environment inside the adsorption chamber; and

[0009] An adjustment unit, located on one side of the through hole, is used to change the number of through holes so that the width of the adsorption surface formed by the through holes matches the width of the workpiece to be adsorbed. This allows the negative pressure adsorption device to adapt to workpieces of different sizes without vacuum leakage.

[0010] The adsorption area can be automatically or manually adjusted according to the actual size of the part to be adsorbed, so that the width of the adsorption surface of the adsorption device is precisely matched with the width of the part to be adsorbed. This not only avoids vacuum leakage, but also improves the adaptability and application range of the negative pressure adsorption device, making it suitable for parts of different sizes, and improving work efficiency and ease of operation.

[0011] In one embodiment of this application, the adjustment unit includes:

[0012] At least one adjusting block, and the adsorption box has through holes corresponding to the adjusting blocks, with the adjusting blocks extending into the adsorption box through the through holes; and

[0013] The driving component, connected to the adjusting block, is used to drive the adjusting block to open or close the through hole, thereby changing the number of through holes.

[0014] The number of through holes in the adsorption chamber can be precisely adjusted to match the width of the adsorption surface with the width of the object to be adsorbed. Since the adjustment unit includes an adjustment block and a driving component, the adjustment block can precisely control the opening and closing of the through holes through the driving component, effectively preventing vacuum leakage and ensuring the stability and reliability of the adsorption effect.

[0015] In one embodiment of this application, the adsorption box is provided with a dovetail-shaped sliding rail, and the adjustment block is provided with a notch that matches the dovetail-shaped sliding rail. The adjustment block is slidably connected to the dovetail-shaped sliding rail through the notch.

[0016] The matching design of the dovetail-shaped sliding rail and the notch on the adjusting block allows the adjusting block to slide stably and precisely within the adsorption chamber, thereby accurately adjusting the number of through holes. This sliding connection structure improves stability and accuracy during adjustment, preventing the adjusting block from tilting or shifting during operation and ensuring the reliability of the adsorption device. Furthermore, the dovetail-shaped sliding rail design enhances the supporting force and stability of the adjusting block, effectively preventing misoperation or damage caused by unstable sliding.

[0017] In one embodiment of this application, a sealing ring is provided on the inner sidewall of the through hole, which can abut against the outer side of the adjusting block.

[0018] The sealing ring forms an effective seal between the adjusting block and the through hole, preventing negative pressure leakage and ensuring a stable negative pressure environment inside the adsorption chamber. This design effectively avoids vacuum leakage caused by negative pressure leakage, ensuring the high-efficiency adsorption capacity of the adsorption device.

[0019] In one embodiment of this application, the adjustment unit further includes:

[0020] The transmission component, corresponding one-to-one with the adjusting block, is located between the driving component and the adjusting block, and is used to convert the kinetic energy of the driving component into the kinetic energy of the adjusting block.

[0021] The transmission assembly effectively converts the kinetic energy of the driving component into the kinetic energy of the adjusting block, enabling precise sliding of the adjusting block and thus precise control over the number of through holes. Through precise adjustment, the adsorption device can automatically adjust the adsorption surface according to the size of the object to be adsorbed, thereby avoiding vacuum leakage. The design of the transmission assembly ensures the smoothness and efficiency of the adjustment process, improves the reliability and durability of the device, and further enhances the adaptability and operational stability of the negative pressure adsorption device.

[0022] In one embodiment of this application, the transmission assembly includes:

[0023] The guide rail is connected to the side of the adsorption box away from the through hole, and the length direction of the guide rail is parallel to the movement direction of the adjustment block.

[0024] The sliding rack is slidably connected to the guide rail;

[0025] Transplanter connecting frame, connected to one end of sliding rack; and

[0026] The connecting rod is connected at one end to the transplanting connecting frame and at the other end to the adjusting block;

[0027] The output shaft of the drive unit is equipped with a gear that meshes with the sliding rack, so as to drive the sliding rack to reciprocate along the length of the guide rail.

[0028] The transmission assembly, through the coordinated operation of the guide rail, sliding rack, transfer connecting frame, and connecting rod, precisely converts the kinetic energy of the driving component into the kinetic energy of the adjusting block, ensuring the precise movement of the adjusting block. This design allows for precise control of the opening and closing of the through-hole, achieving a precise match between the width of the adsorption surface and the width of the object to be adsorbed, thus avoiding vacuum leakage. Simultaneously, the cooperation between the sliding rack and the guide rail ensures smooth and high-precision movement, reducing errors caused by vibration or inaccurate movement. Due to the meshing design of the driving component and the sliding rack, the transmission efficiency is high and stable, effectively improving the working efficiency and adaptability of the negative pressure adsorption device.

[0029] In one embodiment of this application, the transmission assembly further includes:

[0030] The oil damper is connected to the side of the adsorption box away from the through hole and is used to limit the range of motion of the transplanter connecting frame.

[0031] The hydraulic damper effectively limits the range of motion of the transplanter frame and smoothly absorbs the impact force generated during the movement of the sliding rack. This prevents mechanical shock caused by excessive speed or movement of the transplanter frame during operation, protecting the various components of the transmission assembly and avoiding unnecessary damage or wear.

[0032] In one embodiment of this application, two adjustment blocks are used, arranged opposite to each other. This arrangement allows for even load distribution. Each adjustment block bears a portion of the load, preventing deformation or uneven wear of a single block due to excessive load. This extends the service life of the adjustment blocks and related components, and ensures stability during long-term operation.

[0033] In one embodiment of this application, the negative pressure pipe is located in the middle of the side wall of the adsorption chamber. Positioning the negative pressure pipe in the middle of the side wall of the adsorption chamber helps to create a more uniform negative pressure environment. The negative pressure can be more evenly distributed throughout the adsorption chamber, avoiding excessively strong or weak local negative pressure, thereby ensuring the stability and consistency of the negative pressure adsorption effect. This is especially effective in improving adsorption efficiency when performing large-area adsorption.

[0034] In one embodiment of this application, the number of negative pressure pipes is three. The configuration of three negative pressure pipes can further improve the distribution of negative pressure inside the adsorption chamber. By having multiple pipes work simultaneously, it can be ensured that the negative pressure within the entire adsorption chamber is more uniform, avoiding excessively low or high local negative pressure, thereby improving the stability of the adsorption effect.

[0035] By adopting the above technical solution, the adsorption area can be automatically or manually adjusted according to the actual size of the part to be adsorbed, thereby ensuring a precise match between the width of the adsorption surface of the adsorption device and the width of the part. This not only avoids vacuum leakage but also improves the adaptability and application range of the negative pressure adsorption device, making it suitable for parts of different sizes, and enhancing work efficiency and ease of operation. Attached Figure Description

[0036] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0037] Figure 1 This is a first-view perspective three-dimensional structural diagram of the first embodiment of the present utility model;

[0038] Figure 2 This is a second-view perspective three-dimensional structural diagram of the first embodiment of the present invention;

[0039] 10. Adsorption box; 11. Through hole; 20. Negative pressure pipe; 30. Adjusting block; 40. Driving component; 51. Guide rail; 52. Sliding rack; 53. Transplanting connection frame; 54. Connecting rod; 60. Oil buffer. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.

[0041] like Figures 1 to 2 As shown, in order to achieve the above objectives, this utility model proposes a negative pressure adsorption device with adjustable adsorption area, comprising:

[0042] The adsorption box 10 has multiple through holes 11 arranged in an array on the side of the adsorption box 10 facing the object to be adsorbed;

[0043] At least one negative pressure pipe 20 is connected to the adsorption chamber 10 to create a negative pressure environment within the adsorption chamber 10; and

[0044] An adjustment unit is located on one side of the through hole 11 and is used to change the number of through holes 11 so that the width of the adsorption surface formed by the through holes 11 matches the width of the adsorbent, so that the negative pressure adsorption device can adapt to adsorbents of different sizes and avoid vacuum leakage.

[0045] Specifically, the adsorption chamber 10 has a rectangular or cylindrical structure. Multiple through holes 11 are arrayed on the side of the adsorption chamber 10 facing the object to be adsorbed. The through holes 11 can be arranged in a regular matrix or other arrangements depending on actual needs. The adsorption chamber 10 is made of high-strength plastic or metal to ensure it can withstand the internal and external pressure differences under negative pressure conditions.

[0046] There are one or more negative pressure pipes 20. One end of the negative pressure pipe 20 is connected to the adsorption chamber 10, and the other end is connected to the negative pressure pump. The negative pressure pump can create a negative pressure environment inside the adsorption chamber 10. When the negative pressure pipe 20 is introduced into the adsorption chamber 10, a negative pressure is generated inside the negative pressure adsorption device, and a negative pressure area is formed around the through hole 11 of the adsorption chamber 10, which can adsorb the object to be adsorbed.

[0047] An adjustment unit is located on one side of the through holes 11 in the adsorption chamber 10. The adjustment unit can be an electrically driven adjustable valve system, or a pneumatically or hydraulically driven valve system. The adjustment unit controls the conduction state of each through hole 11, changing the number of through holes 11 that are open. Specifically, the adjustment unit can automatically or manually adjust the opening and number of through holes 11 according to the width of the object to be adsorbed, so that the width of the adsorption surface formed by the open through holes 11 matches the width of the object to be adsorbed. The adjustment unit, connected to a sensor, can detect the size of the object to be adsorbed in real time. When the width of the object changes, the adjustment unit adjusts the number of open through holes 11 according to the signal provided by the sensor, ensuring that the negative pressure adsorption device can adapt to objects of different sizes.

[0048] The adjustment unit can also be linked with the control system. The control system automatically controls the operating status of the adjustment unit based on preset programs or manually input information about the workpiece to be adsorbed, further improving the automation level of the device. The control system may include a touchscreen or other human-machine interface for convenient operation.

[0049] By adopting the above technical solution, the adsorption area can be automatically or manually adjusted according to the actual size of the part to be adsorbed, thereby ensuring a precise match between the width of the adsorption surface of the adsorption device and the width of the part. This not only avoids vacuum leakage but also improves the adaptability and application range of the negative pressure adsorption device, making it suitable for parts of different sizes, and enhancing work efficiency and ease of operation.

[0050] In one embodiment of this application, the adjustment unit includes:

[0051] At least one adjusting block 30, and the adsorption box 10 is provided with through holes corresponding to the adjusting blocks, the adjusting blocks 30 extending into the adsorption box 10 through the through holes; and

[0052] The driving component 40 is connected to the adjusting block 30 and is used to drive the adjusting block 30 to open or close the through hole 11 to change the number of through holes 11.

[0053] Specifically, the adjustment unit includes at least one adjustment block 30. The adjustment block 30 can be made of wear-resistant metal or engineering plastic to ensure that it is not easily damaged during long-term use. The shape of the adjustment block 30 is designed to match the shape of the through hole so that it can pass through the through hole, then partially extend into the adsorption box 10, and move smoothly within the through hole.

[0054] The adsorption box 10 is provided with multiple through holes, each corresponding to an adjusting block 30. The diameter of the through hole is slightly larger than the maximum diameter of the adjusting block 30 to ensure that the adjusting block 30 can move freely without jamming or obstruction. In practical applications, the position and number of through holes can be designed according to requirements to ensure flexible adjustment of the number and size of the through holes 11. In this application, the preferred number of through holes is two, with the two through holes arranged opposite each other.

[0055] After passing through the through hole, the adjusting block 30 partially extends into the adsorption chamber 10, allowing for adjustment within the chamber 10 and on one side of the through hole 11. The adjusting block 30 is driven by a driving component 40, which is connected to the adjusting block 30 and can be an electric motor, pneumatic device, or hydraulic device. The driving component 40 drives the adjusting block 30 to move axially along the through hole, opening or closing the corresponding through hole 11. The driving component 40 can adjust the relative position of the adjusting block 30 according to a control signal, thereby changing the number of through holes 11 in operation.

[0056] When the drive unit 40 is activated, the adjusting block 30 pushes the corresponding through hole 11 to open or close. By moving the adjusting block 30, different numbers of through holes 11 can be simultaneously in a conducting or closed state, thereby precisely adjusting the adsorption area of ​​the adsorption box 10 to accommodate adsorbed objects of different sizes. The drive unit 40 can be precisely controlled by the control system or adjusted manually.

[0057] During implementation, the drive component 40 and the adjustment block 30 can be connected by a mechanical transmission device (such as gears, belts, screws, etc.) to ensure that the adjustment block 30 can move smoothly and accurately, and avoid failures caused by excessive friction or misoperation.

[0058] By adopting the above technical solution, the number of through holes 11 in the adsorption chamber 10 can be precisely adjusted, thereby achieving a match between the width of the adsorption surface and the width of the object to be adsorbed. Since the adjustment unit includes an adjustment block 30 and a driving component 40, the adjustment block 30 can precisely control the opening and closing of the through holes 11 through the driving component 40, effectively avoiding the occurrence of vacuum leakage and ensuring the stability and reliability of the adsorption effect.

[0059] In one embodiment of this application, the adsorption box 10 is provided with a dovetail-shaped sliding rail, and the adjustment block 30 is provided with a notch that matches the dovetail-shaped sliding rail. The adjustment block 30 is slidably connected to the dovetail-shaped sliding rail through the notch.

[0060] Specifically, the adsorption chamber 10 is equipped with a dovetail-shaped sliding rail inside. The dovetail-shaped sliding rail is designed as a specially shaped track, resembling a "dovetail," with its side walls angled to ensure precise alignment with the notch on the adjusting block 30. The dovetail-shaped sliding rail is installed inside the adsorption chamber 10, extending along the arrangement direction of the through holes 11. Its material can be high-strength steel or other wear-resistant materials to ensure its stability and durability during long-term use.

[0061] The adjusting block 30 has a notch that matches the dovetail-shaped sliding rail. The shape and size of the notch are designed to fit the shape of the dovetail-shaped sliding rail, allowing the adjusting block 30 to slide freely and be stably fixed on the sliding rail. The notch can be a groove with a certain slope to ensure that the adjusting block 30 will not fall off the sliding rail during adjustment, avoiding unstable movement.

[0062] The adjusting block 30 is slidably connected to the dovetail-shaped sliding rail via a notch, and the sliding trajectory of the adjusting block 30 is consistent with the length direction of the dovetail-shaped sliding rail. This sliding connection structure ensures that the adjusting block 30 can be precisely positioned and slid within the adsorption box 10, allowing it to open or close the through holes 11 as needed, thus changing the number of through holes. The dovetail-shaped sliding rail not only provides stable support and guidance but also ensures that the adjusting block 30 is not disturbed or offset by external forces during sliding, thereby improving the accuracy and stability of the adjustment.

[0063] In addition, to ensure the smoothness of the sliding process, a certain lubrication device can be set on the contact surface of the dovetail slide rail and the adjusting block 30 to avoid poor movement or accelerated wear due to excessive friction.

[0064] By adopting the above technical solution, the matching design of the dovetail-shaped sliding rail and the notch on the adjusting block 30 allows the adjusting block 30 to slide stably and precisely within the adsorption chamber 10, thereby accurately adjusting the number of through holes 11. This sliding connection structure improves the stability and accuracy during the adjustment process, preventing the adjusting block 30 from tilting or shifting during operation and ensuring the reliability of the adsorption device. Furthermore, the dovetail-shaped sliding rail design enhances the support and stability of the adjusting block 30, effectively preventing misoperation or damage caused by unstable sliding.

[0065] In one embodiment of this application, a sealing ring is provided on the inner sidewall of the through hole, which can abut against the outer side of the adjusting block 30.

[0066] Specifically, each through-hole of the adsorption box 10 has a sealing ring on its inner wall. The sealing ring can be made of a material with high elasticity and durability, such as silicone, rubber, or polyurethane, which can maintain good sealing performance during long-term use. The sealing ring is designed as a ring and is evenly distributed on the inner wall of the through-hole, tightly surrounding the inner wall of the through-hole 11.

[0067] When the adjusting block 30 passes through the through hole and slides onto the dovetail slide rail, the sealing ring can make close contact with the outer surface of the adjusting block 30. The function of the sealing ring is to effectively isolate the negative pressure environment inside the adsorption chamber 10 from the external environment, preventing negative pressure leakage or outside air from entering the adsorption chamber 10. This design ensures that the sealing ring can still provide a continuous sealing effect even during the sliding of the adjusting block 30.

[0068] The inner diameter and thickness of the sealing ring are designed based on the outer diameter and shape of the adjusting block 30 to ensure effective contact during the sliding process of the adjusting block 30. The sealing ring not only prevents air leakage but also reduces the impact of vibration caused by changes in negative pressure on the overall performance of the device, thereby further improving the stability of the adsorption effect.

[0069] By employing the above technical solution, the sealing ring can form an effective seal between the adjusting block 30 and the through hole, preventing negative pressure leakage and ensuring a stable negative pressure environment inside the adsorption chamber 10. This design effectively avoids vacuum leakage caused by negative pressure leakage, ensuring the high-efficiency adsorption capacity of the adsorption device.

[0070] In one embodiment of this application, the adjustment unit further includes:

[0071] The transmission component, corresponding one-to-one with the adjustment block 30, is located between the drive component 40 and the adjustment block, and is used to convert the kinetic energy of the drive component 40 into the kinetic energy of the adjustment block 30.

[0072] Specifically, the adjustment unit further includes a transmission assembly. The transmission assembly is used to effectively transfer the kinetic energy generated by the drive member 40 to the adjustment block 30, so that the adjustment block 30 can slide precisely along the dovetail slide rail, thereby opening or closing the through hole 11 and changing the number of through holes 11.

[0073] The design of transmission components can employ different transmission methods, with common methods including gear transmission, belt transmission, and screw transmission.

[0074] If gear transmission is used, the transmission assembly consists of a set of gears, wherein the driving component 40 meshes with the gear on the adjusting block 30 through the gear, driving the adjusting block 30 to slide along the dovetail-shaped sliding rail. The size of the gear and the transmission ratio are selected according to the required accuracy and transmission speed.

[0075] If a belt drive is used, the transmission assembly includes a belt and several pulleys. The drive component 40 drives the pulleys to rotate via the belt, thereby transmitting kinetic energy to the adjusting block 30. Belt drives offer good flexibility and are suitable for transmitting energy over long distances.

[0076] If a screw drive is used, the drive unit 40 drives the screw to rotate via an electric screw or other mechanical means. The screw is connected to the adjusting block 30 via a nut, driving the adjusting block 30 to slide along the dovetail-shaped sliding rail. The screw drive method has high transmission accuracy and is suitable for applications requiring high precision adjustment.

[0077] By employing the above technical solution, the transmission assembly can effectively convert the kinetic energy of the driving component 40 into the kinetic energy of the adjusting block 30, achieving precise sliding of the adjusting block 30 and thus precisely controlling the number of through holes 11. Through precise adjustment, the adsorption device can automatically adjust the adsorption surface according to the size of the object to be adsorbed, thereby avoiding vacuum leakage. The design of the transmission assembly ensures the smoothness and efficiency of the adjustment process, improves the reliability and durability of the device, and further enhances the adaptability and operational stability of the negative pressure adsorption device.

[0078] In one embodiment of this application, the transmission assembly includes:

[0079] The guide rail 51 is connected to the side of the adsorption box 10 away from the through hole 11, and the length direction of the guide rail 51 is parallel to the movement direction of the adjustment block.

[0080] The sliding rack 52 is slidably connected to the guide rail 51;

[0081] Transplanter connecting frame 53 is connected to one end of sliding rack 52; and

[0082] The connecting rod 54 is connected at one end to the transplanting connecting frame 53 and at the other end to the adjusting block 30;

[0083] The output shaft of the drive unit 40 is provided with a gear that meshes with the sliding rack 52, so as to drive the sliding rack 52 to reciprocate along the length direction of the guide rail 51.

[0084] Specifically, the guide rail 51 is installed on the side of the adsorption box 10 away from the through hole 11, and the length direction of the guide rail 51 is parallel to the movement direction of the adjusting block 30. The function of the guide rail 51 is to provide a precise guiding path for the sliding rack 52, ensuring that the sliding rack 52 does not deviate or jam during movement. The guide rail 51 can be made of wear-resistant, low-friction metal or plastic materials, such as aluminum alloy or engineering plastics, to ensure its stable operation during long-term use.

[0085] The sliding rack 52 is connected to the guide rail 51 via a sliding connection and slides along the length of the guide rail 51. The sliding rack 52 is a long strip-shaped component with a toothed structure. The tooth shape of the rack matches the gear of the drive component 40 so that the movement of the sliding rack 52 is driven by the meshing of the gears. The sliding rack 52 is made of a high-strength material, such as steel or plastic, to provide sufficient strength and wear resistance.

[0086] The transplanter connector 53 is connected to one end of the sliding rack 52, and its function is to transmit the movement of the sliding rack 52 to the connecting rod 54. The transplanter connector 53 can be fixed to one end of the sliding rack 52 by bolts or other means to ensure that it stably transmits torque during sliding. The transplanter connector 53 may also have a certain buffering effect to reduce the vibration or impact generated during the movement of the rack.

[0087] The two ends of the connecting rod 54 are connected to the transplanting connecting frame 53 and the adjusting block 30, respectively. The function of the connecting rod 54 is to convert the linear motion of the sliding rack 52 into the sliding motion of the adjusting block 30, and to ensure that the adjusting block 30 moves along the dovetail sliding rail according to the set trajectory. The length and rigidity of the connecting rod 54 need to be designed according to the weight of the adjusting block 30 and the requirements of the sliding trajectory to ensure that it does not bend or deform during the movement.

[0088] The drive unit 40 is a stepper motor, which meshes with the sliding rack 52 via a gear on its output shaft. The rotational kinetic energy output by the drive unit 40 is transmitted to the sliding rack 52 through the gear, causing the sliding rack 52 to reciprocate along the length of the guide rail 51. The size and tooth profile of the gear need to match the tooth profile of the sliding rack 52 to ensure smooth and error-free gear meshing, thereby avoiding transmission failure or inaccurate movement.

[0089] Through this transmission component design, the rotational kinetic energy of the drive component 40 can be transmitted to the sliding rack 52 via gears, causing the sliding rack 52 to reciprocate smoothly on the guide rail 51. The movement of the sliding rack 52 is converted into the linear movement of the adjusting block 30 through the transfer connecting frame 53 and the connecting rod 54, thereby precisely controlling the position of the adjusting block 30 on the dovetail sliding rail, and ultimately adjusting the number of through holes 11.

[0090] By employing the above technical solution, the transmission assembly, through the coordinated operation of the guide rail 51, sliding rack 52, transplanting connecting frame 53, and connecting rod 54, can precisely convert the kinetic energy of the driving component 40 into the kinetic energy of the adjusting block 30, ensuring the precise movement of the adjusting block 30. This design can precisely control the opening and closing of the through hole 11, achieving a precise match between the width of the adsorption surface and the width of the component to be adsorbed, thus avoiding vacuum leakage. Simultaneously, the cooperation between the sliding rack 52 and the guide rail 51 ensures smooth and high-precision movement, reducing errors caused by vibration or inaccurate movement. Due to the meshing design of the driving component 40 and the sliding rack 52, the transmission efficiency is high and stable, effectively improving the working efficiency and adaptability of the negative pressure adsorption device.

[0091] In one embodiment of this application, the transmission assembly further includes:

[0092] The oil buffer 60 is connected to the side of the adsorption box 10 away from the through hole 11 and is used to limit the range of motion of the transplanting connection frame 53.

[0093] Specifically, the hydraulic damper 60 is a device that uses the principle of hydraulic damping to control movement speed and absorb impact. The hydraulic damper 60 includes a sealed outer shell, an internal cavity with a piston, and hydraulic fluid filled in the cavity. When the transfer connecting frame 53 or the sliding rack 52 experiences impact or reverse movement during movement, the hydraulic fluid in the hydraulic damper 60 flows through the movement of the piston, thereby providing buffering and deceleration.

[0094] The oil damper 60 is fixedly installed on the side of the adsorption box 10 away from the through hole 11 and is aligned with the movement path of the transplanting connecting frame 53. The function of the oil damper 60 is to limit the further movement of the transplanting connecting frame 53 by slowly releasing oil when it reaches its maximum or minimum movement range, thereby preventing the transplanting connecting frame 53 from exceeding the predetermined movement range or moving too fast, which could lead to system instability or damage.

[0095] By employing the above technical solution, the oil damper 60 effectively limits the movement range of the transplanter connecting frame 53 and can smoothly absorb the impact force generated during the movement of the sliding rack 52. This prevents mechanical impact caused by excessive speed or over-movement of the transplanter connecting frame 53 during operation, protecting the various components of the transmission assembly and avoiding unnecessary damage or wear.

[0096] In one embodiment of this application, there are two adjustment blocks 30, which are arranged opposite to each other.

[0097] By adopting the above technical solution, the two adjusting blocks 30, arranged opposite each other, can achieve a uniform distribution of load. Each adjusting block 30 bears a portion of the load, avoiding deformation or uneven wear of a single adjusting block 30 due to excessive load. This can extend the service life of the adjusting blocks 30 and related components, and ensure stability during long-term operation.

[0098] In one embodiment of this application, the negative pressure pipe 20 is located at the middle position of the side wall of the adsorption box 10.

[0099] By adopting the above technical solution, the negative pressure pipe 20 is located in the middle of the side wall of the adsorption chamber 10, which helps to form a more uniform negative pressure environment. The negative pressure can be more evenly distributed in all parts of the adsorption chamber 10, avoiding excessively strong or weak local negative pressure, thereby ensuring the stability and consistency of the negative pressure adsorption effect. Especially when performing large-area adsorption, it can effectively improve the adsorption efficiency.

[0100] In one embodiment of this application, the number of negative pressure pipes 20 is three.

[0101] By adopting the above technical solution, the configuration of three negative pressure pipes 20 can further improve the distribution of negative pressure inside the adsorption chamber 10. The simultaneous action of multiple pipes ensures a more uniform negative pressure throughout the entire adsorption chamber 10, preventing localized excessively low or high negative pressures, thereby improving the stability of the adsorption effect.

[0102] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A negative pressure adsorption device with adjustable adsorption area, characterized in that, include: An adsorption box, wherein the side of the adsorption box facing the object to be adsorbed is provided with an array of through holes; At least one negative pressure pipe is connected to the adsorption box to create a negative pressure environment inside the adsorption box; as well as An adjustment unit is located on one side of the through hole and is used to change the number of through holes so that the width of the adsorption surface formed by the through holes matches the width of the workpiece to be adsorbed, so that the negative pressure adsorption device can adapt to workpieces of different sizes and avoid vacuum leakage. The adjustment unit includes: At least one adjusting block is provided, and the adsorption box is provided with through holes corresponding to the adjusting blocks. The adjusting blocks extend into the adsorption box through the through holes. and A driving element, connected to the adjusting block, is used to drive the adjusting block to open or close the through hole, thereby changing the number of through holes.

2. The negative pressure adsorption device with adjustable adsorption area as described in claim 1, characterized in that, The adsorption box is equipped with a dovetail-shaped sliding rail, and the adjustment block is provided with a notch that matches the dovetail-shaped sliding rail. The adjustment block is slidably connected to the dovetail-shaped sliding rail through the notch.

3. The negative pressure adsorption device with adjustable adsorption area as described in claim 1, characterized in that, The inner wall of the through hole is provided with a sealing ring that can abut against the outer side of the adjusting block.

4. The negative pressure adsorption device with adjustable adsorption area as described in any one of claims 2 to 3, characterized in that, The adjustment unit further includes: A transmission component, corresponding one-to-one with the adjustment block, is disposed between the driving member and the adjustment block, and is used to convert the kinetic energy of the driving member into the kinetic energy of the adjustment block.

5. The negative pressure adsorption device with adjustable adsorption area as described in claim 4, characterized in that, The transmission assembly includes: A guide rail is connected to the side of the adsorption box away from the through hole, and the length direction of the guide rail is parallel to the movement direction of the adjustment block; A sliding rack is slidably connected to the guide rail; Transplanting connector, connected to one end of the sliding rack; and The connecting rod is connected at one end to the transplanting connecting frame and at the other end to the adjusting block; The output shaft of the drive unit is provided with a gear that meshes with the sliding rack, so as to drive the sliding rack to reciprocate along the length direction of the guide rail.

6. The negative pressure adsorption device with adjustable adsorption area as described in claim 5, characterized in that, The transmission assembly also includes: An oil buffer is connected to the side of the adsorption box away from the through hole to limit the range of motion of the transplanting frame.

7. The negative pressure adsorption device with adjustable adsorption area as described in claim 1, characterized in that, The number of adjustment blocks is two, and the two adjustment blocks are set opposite to each other.

8. The negative pressure adsorption device with adjustable adsorption area as described in claim 1, characterized in that, The negative pressure pipe is located in the middle of the side wall of the adsorption box.

9. The negative pressure adsorption device with adjustable adsorption area as described in claim 1, characterized in that, The number of negative pressure pipes is three.

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