A vacuum adsorption device with the adsorption area size and shape automatically adjustable

Abstract

A vacuum adsorption device with an adsorption area size and shape that can be adjusted automatically at will, wherein one end of the strip-shaped magnetic seal is connected to a coil assembly, and the other end of the strip-shaped magnetic seal is adsorbed on the top of the seal adsorption platform, and the strip-shaped magnetic seal located on the top of the seal adsorption platform is sealed to form an adsorption cavity; the outer shaping magnet is located outside the adsorption cavity, and the inner shaping magnet is located inside the adsorption cavity, and both the outer shaping magnet and the inner shaping magnet are adsorbed on the seal adsorption platform; the position adjustment drive assembly drives the rotating T-axis module and the rotating strong magnetic head to move horizontally, and the rotating T-axis module drives the rotating strong magnetic head to rotate, and the rotating strong magnetic head drives the outer shaping magnet and the inner shaping magnet to adjust the size and shape of the adsorption cavity formed by the strip-shaped magnetic seal; the vacuum supply system includes a vacuum port air pipe, and the end of the vacuum port air pipe is connected to the inside of the adsorption cavity. The present invention realizes the arbitrary adjustment of the size and shape of the adsorption area.

Description

Technical Field

[0001] The invention belongs to the technical field of vacuum adsorption, and in particular relates to a vacuum adsorption device whose adsorption area size and shape can be automatically adjusted arbitrarily. Background Art

[0002] Vacuum adsorption equipment is a device that uses vacuum technology to adsorb objects. It creates a vacuum by changing the internal air pressure from normal pressure to negative pressure, and uses the pressure difference between the external atmospheric pressure and this negative pressure to achieve the purpose of adsorbing objects.

[0003] In the prior art, the vacuum adsorption platform partition is mainly customized according to the predetermined product sizes, and it is impossible to achieve compatibility with a wide range of product sizes. Since the existing vacuum adsorption structure is designed according to the product size, it is not compatible with any product size with a length-to-width ratio. When the equipment is introduced into a new model product, problems such as incompatibility of the adsorption area may occur. Especially for special-shaped flat materials, the traditional adsorption method can only customize the adsorption platform according to the shape, resulting in the need to produce a large number of customized adsorption platforms every time the factory changes production, and the replacement cycle is long, laborious and costly. Summary of the invention

[0004] To this end, the present invention provides a vacuum adsorption device whose size and shape of the adsorption area can be automatically adjusted arbitrarily, so as to solve the problem of poor compatibility caused by the inability to arbitrarily adjust the size and shape of the adsorption area in traditional technologies, and the need to produce a large number of customized adsorption platforms.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a vacuum adsorption device whose adsorption area size and shape can be arbitrarily and automatically adjusted, comprising a downward pressure adsorption component, a sealing pad length adjustment mechanism, a sealing pad size and shape adjustment mechanism and a vacuum supply system;

[0006] The downward pressure adsorption assembly includes a guide sleeve, a guide rod, a vacuum adsorption platform and an adsorption platform driving member; the sealing pad length adjustment mechanism includes a sealing pad adsorption platform, a strip-shaped magnetic sealing pad, a coil assembly, an external shaping magnet and an internal shaping magnet; the guide sleeve and the sealing pad adsorption platform are fixedly connected, the lower end of the guide rod is located inside the guide sleeve, and the upper end of the guide rod is connected to the vacuum adsorption platform; the adsorption platform driving member is connected to the lower part of the vacuum adsorption platform; one end of the strip-shaped magnetic sealing pad is connected to the coil assembly, and the other end of the strip-shaped magnetic sealing pad is adsorbed on the top of the sealing pad adsorption platform, and the strip-shaped magnetic sealing pad located above the sealing pad adsorption platform is closed to form an adsorption cavity; the external shaping magnet is located outside the adsorption cavity, and the internal shaping magnet is located inside the adsorption cavity, and the external shaping magnet and the internal shaping magnet are both adsorbed on the sealing pad adsorption platform;

[0007] The sealing gasket size and shape adjustment mechanism includes a rotating strong magnetic head, a rotating T-axis module and a position adjustment drive assembly, wherein the rotating strong magnetic head is connected to the rotating T-axis module, and the rotating T-axis module is connected to the position adjustment drive assembly, and the position adjustment drive assembly drives the rotating T-axis module and the rotating strong magnetic head to move horizontally, and the rotating T-axis module drives the rotating strong magnetic head to rotate, and the rotating strong magnetic head drives the outer shaping magnet and the inner shaping magnet to adjust the size and shape of the adsorption cavity formed by the strip-shaped magnetic inlaid sealing gasket;

[0008] The vacuum supply system comprises a vacuum port air pipe, and an end of the vacuum port air pipe is connected to the interior of the adsorption cavity.

[0009] As a preferred solution for the vacuum adsorption device whose adsorption area size and shape can be automatically adjusted, vacuum adsorption holes are distributed on the vacuum adsorption platform, and the vacuum adsorption holes cover the adsorption cavity formed by the strip-shaped magnetic sealing pad.

[0010] As a preferred solution for the vacuum adsorption equipment whose size and shape of the adsorption area can be automatically adjusted, the adsorption platform driving parts are provided with two groups, and the two groups of the adsorption platform driving parts are symmetrically arranged on both sides of the vacuum adsorption platform; the guide sleeves and the guide rods are provided with four groups, and the four groups of guide sleeves are respectively connected to the four corners of the sealing pad adsorption platform, and the four groups of guide rods are respectively connected to the four corners of the vacuum adsorption platform.

[0011] As a preferred solution for the vacuum adsorption equipment whose adsorption area size and shape can be automatically adjusted, an avoidance through hole is provided at the edge of the sealing pad adsorption platform, and the driving end of the adsorption platform driving member passes through the avoidance through hole and then connects to the vacuum adsorption platform.

[0012] As a preferred solution for the vacuum adsorption device whose adsorption area size and shape can be automatically adjusted, the sealing pad adsorption platform is provided with a first guide bearing and a second guide bearing, and one end of the strip-shaped magnetic sealing pad passes between the first guide bearing and the second guide bearing;

[0013] One end of the strip-shaped magnetic sealing gasket passes through between the first guide bearing and the second guide bearing, and then leads out from between the first guide bearing and the second guide bearing.

[0014] As a preferred solution for the vacuum adsorption equipment whose size and shape of the adsorption area can be automatically adjusted, the sealing pad adsorption platform is provided with a sealing cylinder, and the first guide bearing is connected to the sealing cylinder. The sealing cylinder drives the first guide bearing to press the strip-shaped magnetic sealing pad between the first guide bearing and the second guide bearing, so that the strip-shaped magnetic sealing pad above the sealing pad adsorption platform is closed to form an adsorption cavity.

[0015] As a preferred solution for the vacuum adsorption equipment whose size and shape of the adsorption area can be automatically adjusted, the coil assembly includes a coil mounting plate, a coil wheel and a coil motor; one end of the coil mounting plate is fixedly connected to the side of the sealing pad adsorption platform, the coil motor is fixed under the coil mounting plate, and the coil wheel is connected to the drive shaft of the coil motor; one end of the strip-shaped magnetic sealing pad is connected to the coil wheel.

[0016] As a preferred solution for the vacuum adsorption device whose adsorption area size and shape can be automatically adjusted, an encoder is connected above the coil mounting plate, the encoder is connected to a counting wheel, and the strip-shaped magnetic sealing gasket passes through the counting wheel.

[0017] As a preferred solution for a vacuum adsorption device whose adsorption area size and shape can be automatically adjusted, the position adjustment drive component includes an X-axis servo module and a Y-axis servo module; the moving part of the X-axis servo module is connected to the Y-axis servo module, and the moving part of the Y-axis servo module is connected to the rotating T-axis module.

[0018] As a preferred solution for vacuum adsorption equipment whose size and shape of the adsorption area can be automatically adjusted at will, the vacuum supply system includes a vacuum filter, a vacuum-to-filter air pipe, a vacuum generator, a solenoid valve, an L-shaped rotary joint and an air intake pipe; one end of the vacuum port air pipe is connected to the adsorption cavity, and the other end of the vacuum port air pipe is connected to the vacuum filter, the vacuum filter is connected to the vacuum generator through the vacuum-to-filter air pipe, the vacuum generator is connected to the solenoid valve through the adapter air pipe, and the solenoid valve is connected to the air intake pipe through the L-shaped rotary joint.

[0019] The present invention has the following advantages: the downward pressure adsorption component includes a guide sleeve, a guide rod, a vacuum adsorption platform and an adsorption platform driving member; the sealing pad length adjustment mechanism includes a sealing pad adsorption platform, a strip-shaped magnetic sealing pad, a coil assembly, an external shaping magnet and an internal shaping magnet; the guide sleeve and the sealing pad adsorption platform are fixedly connected, the lower end of the guide rod is located inside the guide sleeve, and the upper end of the guide rod is connected to the vacuum adsorption platform; the adsorption platform driving member is connected to the lower part of the vacuum adsorption platform; one end of the strip-shaped magnetic sealing pad is connected to the coil assembly, and the other end of the strip-shaped magnetic sealing pad is adsorbed on the top of the sealing pad adsorption platform, and the strip-shaped magnetic sealing pad located above the sealing pad adsorption platform is sealed to form an adsorption cavity; the external shaping magnet is located in The outer part of the adsorption cavity and the inner shaping magnet are located inside the adsorption cavity, and both the outer shaping magnet and the inner shaping magnet are adsorbed on the sealing pad adsorption platform; the sealing pad size and shape adjustment mechanism includes a rotating strong magnetic head, a rotating T-axis module and a position adjustment drive assembly, the rotating strong magnetic head is connected to the rotating T-axis module, the rotating T-axis module is connected to the position adjustment drive assembly, the position adjustment drive assembly drives the rotating T-axis module and the rotating strong magnetic head to move horizontally, the rotating T-axis module drives the rotating strong magnetic head to rotate, and the rotating strong magnetic head drives the outer shaping magnet and the inner shaping magnet to adjust the size and shape of the adsorption cavity formed by the strip-shaped magnetic-inlaid sealing pad; the vacuum supply system includes a vacuum port air pipe, and the end of the vacuum port air pipe is connected to the inside of the adsorption cavity. The present invention can adjust the shape of the adsorption cavity area formed by the strip-shaped magnetic-inlaid sealing pad, thereby realizing arbitrary adjustment of the size and shape of the adsorption area, the overall structure is simple, and can greatly save the cost of manual intervention and the time of changeover; there is no need to customize multiple adsorption platforms to correspond to the adsorption of different products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of a vacuum adsorption device provided in an embodiment of the present invention, in which the size and shape of the adsorption area can be automatically adjusted at will;

[0022] Figure 2 It is a schematic diagram of the structure of the downward pressure adsorption component of the vacuum adsorption equipment provided in the embodiment of the present invention, in which the size and shape of the adsorption area can be automatically adjusted at will;

[0023] Figure 3 It is a schematic diagram of the structure of the sealing pad length adjustment mechanism of the vacuum adsorption equipment provided in the embodiment of the present invention, in which the size and shape of the adsorption area can be automatically adjusted at will;

[0024] Figure 4 A schematic diagram of the structure of a sealing gasket size and shape adjustment mechanism of a vacuum adsorption device provided in an embodiment of the present invention, wherein the size and shape of the adsorption area can be automatically adjusted at will;

[0025] Figure 5 This is a schematic diagram of the path planning principle of a vacuum adsorption device in which the size and shape of the adsorption area can be automatically adjusted as provided in an embodiment of the present invention.

[0026] In the figure, 1. downward pressure adsorption component; 2. sealing gasket length adjustment mechanism; 3. sealing gasket size and shape adjustment mechanism; 4. vacuum supply system; 5. guide sleeve; 6. guide rod; 7. vacuum adsorption platform; 8. adsorption platform drive member; 9. sealing gasket adsorption platform; 10. strip-shaped magnetic sealing gasket; 11. coil assembly; 12. external shaping magnet; 13. internal shaping magnet; 14. adsorption cavity; 15. rotating strong magnetic head; 16. rotating T-axis module; 17. position adjustment drive component; 19. vacuum adsorption hole; 20. avoidance through hole; 21. first guide bearing; 22. second guide bearing; 23. sealing cylinder; 24. coil mounting plate; 25. coil wheel; 26. coil motor; 27. encoder; 28. counting wheel; 29. ​​X-axis servo module; 30. Y-axis servo module. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment of the present invention provides a vacuum adsorption device whose adsorption area size and shape can be arbitrarily and automatically adjusted, comprising a downward pressure adsorption component 1, a sealing pad length adjustment mechanism 2, a sealing pad size and shape adjustment mechanism 3 and a vacuum supply system 4;

[0029] Among them, the downward pressure adsorption component 1 includes a guide sleeve 5, a guide rod 6, a vacuum adsorption platform 7 and an adsorption platform driving member 8; the sealing gasket length adjustment mechanism 2 includes a sealing gasket adsorption platform 9, a strip-shaped magnetic sealing gasket 10, a coil assembly 11, an external shaping magnet 12 and an internal shaping magnet 13; the guide sleeve 5 and the sealing gasket adsorption platform 9 are fixedly connected, the lower end of the guide rod 6 is inside the guide sleeve 5, and the upper end of the guide rod 6 is connected to the vacuum adsorption platform 7; the adsorption platform driving member 8 is connected to the lower part of the vacuum adsorption platform 7; one end of the strip-shaped magnetic sealing gasket 10 is connected to the coil assembly 11, and the other end of the strip-shaped magnetic sealing gasket 10 is adsorbed on the top of the sealing gasket adsorption platform 9, and the strip-shaped magnetic sealing gasket 10 located above the sealing gasket adsorption platform 9 is closed to form an adsorption cavity 14; the external shaping magnet 12 is outside the adsorption cavity 14, and the internal shaping magnet 13 is inside the adsorption cavity 14, and the external shaping magnet 12 and the internal shaping magnet 13 are both adsorbed on the sealing gasket adsorption platform 9;

[0030] The sealing gasket size and shape adjustment mechanism 3 includes a rotating strong magnetic head 15, a rotating T-axis module 16 and a position adjustment drive assembly 17. The rotating strong magnetic head 15 is connected to the rotating T-axis module 16, and the rotating T-axis module 16 is connected to the position adjustment drive assembly 17. The position adjustment drive assembly 17 drives the rotating T-axis module 16 and the rotating strong magnetic head 15 to move horizontally. The rotating T-axis module 16 drives the rotating strong magnetic head 15 to rotate. The rotating strong magnetic head 15 drives the outer shaping magnet 12 and the inner shaping magnet 13 to adjust the size and shape of the adsorption cavity 14 formed by the strip-shaped magnetic sealing gasket 10.

[0031] The vacuum supply system 4 includes a vacuum port air pipe, and an end of the vacuum port air pipe is connected to the interior of the adsorption cavity 14 .

[0032] In this embodiment, vacuum adsorption holes 19 are distributed on the vacuum adsorption platform 7 , and the vacuum adsorption holes 19 cover the top of the adsorption cavity 14 formed by the strip-shaped magnetically embedded sealing pad 10 .

[0033] See again Figure 2 Specifically, the vacuum adsorption holes 19 are arranged in a square shape on the vacuum adsorption platform 7. When the adsorption platform driving component 8 drives the vacuum adsorption platform 7 to press the strip-shaped magnetic sealing gasket 10 on the sealing gasket adsorption platform 9, the vacuum adsorption holes 19 above the adsorption cavity 14 formed by the strip-shaped magnetic sealing gasket 10 can realize the adsorption of products of corresponding shapes.

[0034] In this embodiment, two groups of adsorption platform driving members 8 are provided, and the two groups of adsorption platform driving members 8 are symmetrically arranged on both sides of the vacuum adsorption platform 7; four groups of guide sleeves 5 and four groups of guide rods 6 are provided, and the four groups of guide sleeves 5 are respectively connected to the four corners of the sealing pad adsorption platform 9, and the four groups of guide rods 6 are respectively connected to the four corners of the vacuum adsorption platform 7; the edge of the sealing pad adsorption platform 9 is provided with an avoidance through hole 20, and the driving end of the adsorption platform driving member 8 passes through the avoidance through hole 20 and then connects to the vacuum adsorption platform 7.

[0035] See again Figure 2 Specifically, the adsorption platform driving member 8 adopts an air buffer cylinder. Two groups of adsorption platform driving members 8 can smoothly drive the vacuum adsorption platform 7 to move up and down. During the up and down movement of the vacuum adsorption platform 7, the guide rod 6 slides relative to the guide sleeve 5 to ensure the accuracy of the moving position of the vacuum adsorption platform 7. The adsorption platform driving member 8 is arranged below the sealing pad adsorption platform 9, and the driving end of the adsorption platform driving member 8 extends through the avoidance through hole 20 of the sealing pad adsorption platform 9, and the overall structure is more coordinated and compact.

[0036] In this embodiment, a first guide bearing 21 and a second guide bearing 22 are provided on the sealing pad adsorption platform 9, and one end of the strip-shaped magnetic sealing pad 10 passes through between the first guide bearing 21 and the second guide bearing 22; one end of the strip-shaped magnetic sealing pad 10 passes through between the first guide bearing 21 and the second guide bearing 22, and then is led out from between the first guide bearing 21 and the second guide bearing 22; the sealing pad adsorption platform 9 is provided with a sealing cylinder 23, and the first guide bearing 21 is connected to the sealing cylinder 23, and the sealing cylinder 23 drives the first guide bearing 21 to press the strip-shaped magnetic sealing pad 10 between the first guide bearing 21 and the second guide bearing 22, so that the strip-shaped magnetic sealing pad 10 above the sealing pad adsorption platform 9 is closed to form an adsorption cavity 14.

[0037] See again Figure 3 Specifically, the first guide bearing 21 and the second guide bearing 22 can guide the strip-shaped magnet-embedded sealing gasket 10, which facilitates the extension of the strip-shaped magnet-embedded sealing gasket 10. When the strip-shaped magnet-embedded sealing gasket 10 extends along the second guide bearing 22 to a specified length, the end of the strip-shaped magnet-embedded sealing gasket 10 is rewound back to the first guide bearing 21 again. Since the first guide bearing 21 is connected to the sealing cylinder 23, the sealing cylinder 23 can drive the first guide bearing 21 to press the strip-shaped magnet-embedded sealing gasket 10, so that the strip-shaped magnet-embedded sealing gasket 10 forms a closed interface between the first guide bearing 21 and the second guide bearing 22, so that the extended strip-shaped magnet-embedded sealing gasket 10 forms a closed adsorption cavity 14. The rotating strong magnetic head 15 of the sealing gasket size and shape adjustment mechanism 3 can drive the outer shaping magnet 12 and the inner shaping magnet 13 to adjust the size and shape of the adsorption cavity 14 formed by the strip-shaped magnet-embedded sealing gasket 10.

[0038] Among them, during the process of adjusting the size and shape of the adsorption cavity 14 by the rotating strong magnetic head 15, the sealing gasket size and shape adjustment mechanism 3 can drive the rotating strong magnetic head 15 to move to any position in the horizontal and vertical directions, thereby realizing any shape adjustment of the adsorption cavity 14 formed by the strip-shaped inlaid magnetic sealing gasket 10.

[0039] In this embodiment, the coil assembly 11 includes a coil mounting plate 24, a coil wheel 25 and a coil motor 26; one end of the coil mounting plate 24 is fixedly connected to the side of the sealing pad adsorption platform 9, the coil motor 26 is fixed below the coil mounting plate 24, and the coil wheel 25 is connected to the drive shaft of the coil motor 26; one end of the strip-shaped magnetically inlaid sealing pad 10 is connected to the coil wheel 25. An encoder 27 is connected above the coil mounting plate 24, and the encoder 27 is connected to a counting wheel 28, and the strip-shaped magnetically inlaid sealing pad 10 passes through the counting wheel 28.

[0040] See again Figure 3 Specifically, the coiling motor 26 can drive the coiling wheel 25 to rotate forward and reverse, so as to extend and retract the strip-shaped magnetic seal pad 10 on the coiling wheel 25. The strip-shaped magnetic seal pad 10 itself is inlaid with permanent magnets to ensure that the position remains unchanged after the shape is adjusted. When the strip-shaped magnetic seal pad 10 is extended and retracted, the encoder 27 and the counting wheel 28 are used to count the extension and retraction length of the strip-shaped magnetic seal pad 10.

[0041] Among them, the principle of the sealing gasket length adjustment mechanism 2 automatically releasing the strip-shaped magnetic sealing gasket 10 of corresponding length is as follows: the winding motor 26 first rewinds the material to the initial position, at which time the winding wheel 25 rotates to discharge the material, and the sealing gasket size and shape adjustment mechanism moves to pull out the strip-shaped magnetic sealing gasket 10. The discharge length is counted by the encoder 27 and the counting wheel 28, and the actual discharge length can be calculated; if the discharge length is preset to L, the outer diameter of the counting wheel 28 of the encoder 27 is D, and the actual discharge counting number of circles is N, N=L / πD.

[0042] In this embodiment, the position adjustment drive assembly 17 includes an X-axis servo module 29 and a Y-axis servo module 30 ; the moving part of the X-axis servo module 29 is connected to the Y-axis servo module 30 , and the moving part of the Y-axis servo module 30 is connected to the rotating T-axis module 16 .

[0043] See also Figure 4 Specifically, the X-axis servo module 29 can drive the Y-axis servo module 30 and the rotating T-axis module 16 to move in the X direction, the Y-axis servo module 30 can drive the rotating T-axis module 16 to move in the Y direction, and the rotating T-axis module 16 itself can rotate, so as to realize the arbitrary position movement of the rotating strong magnetic head 15 that controls the rotating T-axis module 16. Among them, the X-axis servo module 29 and the Y-axis servo module 30 themselves belong to the prior art and will not be described in detail here.

[0044] In this embodiment, the vacuum supply system 4 includes a vacuum port air pipe, a vacuum filter, a vacuum to filter air pipe, a vacuum generator, a solenoid valve, an L-shaped rotary joint and an air intake pipe; one end of the vacuum port air pipe is connected to the adsorption cavity 14, and the other end of the vacuum port air pipe is connected to the vacuum filter. The vacuum filter is connected to the vacuum generator through the vacuum to filter air pipe, and the vacuum generator is connected to the solenoid valve through the adapter air pipe, and the solenoid valve is connected to the air intake pipe through the L-shaped rotary joint.

[0045] Specifically, after the vacuum generator is started, external air flows from the air inlet pipe through the L-shaped rotary joint and the solenoid valve to the vacuum generator. The vacuum generator discharges the external air to generate negative pressure, so that the gas in the adsorption cavity 14 is discharged from the vacuum generator through the vacuum port pipe, the vacuum filter, and the vacuum transfer filter pipe, so that the adsorption cavity 14 is vacuumed, thereby achieving the purpose of adsorbing the product.

[0046] In a possible embodiment, movement at any position can be a movement path pre-planned according to the shape of the adsorbed product. The product shape length is calculated through the shape drawing of the adsorbed product. The sealing gasket length adjustment mechanism 2 releases a strip-shaped magnetic sealing gasket 10 of corresponding length. The sealing gasket size and shape adjustment mechanism performs XYT axis movement. The strong magnet on the rotating strong magnetic head 15 drives the outer shaping magnet 12 and the inner shaping magnet 13 on both sides of the strip-shaped magnetic sealing gasket 10 to move. The shape of the vacuum area is planned according to the corresponding product trajectory, and the adsorption plate assembly is pressed down to form a vacuum adsorption cavity. At this time, the product is placed on the corresponding vacuum adsorption platform 7, and the vacuum supply system 4 provides vacuum to effectively adsorb the product.

[0047] See also Figure 5 In a possible embodiment, a sealing area path is planned for products with special-shaped shapes, and the vacuum adsorption platform 7 or other reference objects are used as the coordinate origin. A, B, C... are taken as path points on the planned path, that is, the path coordinates of the rotating strong magnetic head 15; the calculated points of the path coordinates are W1, W2, W3, W4..., that is, the coordinate of point A is the midpoint of W1 and W2; at this time, the angle of the rotating strong magnetic head 15 is the angle between the vertical line connecting W1 and W2 and the X-axis.

[0048] Take points A and B as examples: the coordinates of point A are (X2-X1 / 2+Y1, Y2-Y1 / 2+Y1); the coordinates of point B are (X6-X5 / 2+Y5, Y6-Y5 / 2+Y5); the angle of rotation of the strong magnetic head 15 at point A is: 90°-arc(tanY2-Y1 / X2-X1); the angle of rotation of the strong magnetic head 15 at point B is: 90°-arc(tanY6-Y5 / X6-X5). The above method can plan the coordinates of the planning path of the vacuum area by taking multiple points.

[0049] In summary, in the present invention, when the adsorption platform driver 8 drives the vacuum adsorption platform 7 to press the strip-shaped magnetic sealing gasket 10 on the sealing gasket adsorption platform 9, the vacuum adsorption hole 19 above the adsorption cavity 14 formed by the strip-shaped magnetic sealing gasket 10 can achieve the adsorption effect of the product of the corresponding shape. The adsorption platform driver 8 adopts an air buffer cylinder, and the two groups of adsorption platform drivers 8 can smoothly drive the vacuum adsorption platform 7 to move up and down. During the up and down movement of the vacuum adsorption platform 7, the guide rod 6 slides relative to the guide sleeve 5 to ensure the accuracy of the moving position of the vacuum adsorption platform 7. The adsorption platform driver 8 is arranged below the sealing gasket adsorption platform 9, and the driving end of the adsorption platform driver 8 extends out through the avoidance through hole 20 of the sealing gasket adsorption platform 9, and the overall structure is more coordinated and compact. The first guide bearing 21 and the second guide bearing 22 can guide the strip-shaped magnet-embedded sealing gasket 10, which facilitates the extension of the strip-shaped magnet-embedded sealing gasket 10. After the strip-shaped magnet-embedded sealing gasket 10 extends along the second guide bearing 22 to a specified length, the end of the strip-shaped magnet-embedded sealing gasket 10 is rewound back to the first guide bearing 21 again. Since the first guide bearing 21 is connected to the sealing cylinder 23, the sealing cylinder 23 can drive the first guide bearing 21 to press the strip-shaped magnet-embedded sealing gasket 10, so that the strip-shaped magnet-embedded sealing gasket 10 forms a closed interface between the first guide bearing 21 and the second guide bearing 22, so that the extended strip-shaped magnet-embedded sealing gasket 10 forms a closed adsorption cavity 14. The rotating strong magnetic head 15 of the sealing gasket size and shape adjustment mechanism 3 can drive the outer shaping magnet 12 and the inner shaping magnet 13 to adjust the size and shape of the adsorption cavity 14 formed by the strip-shaped magnet-embedded sealing gasket 10. During the process of adjusting the size and shape of the adsorption cavity 14 by the rotating strong magnetic head 15, the gasket size and shape adjustment mechanism 3 can drive the rotating strong magnetic head 15 to move to any position in the horizontal and vertical directions, thereby realizing any shape adjustment of the adsorption cavity 14 formed by the strip-shaped magnet-embedded gasket 10. The winding motor 26 can drive the winding wheel 25 to rotate forward and reverse, thereby realizing the extension and contraction of the strip-shaped magnet-embedded gasket 10 on the winding wheel 25. The strip-shaped magnet-embedded gasket 10 itself is inlaid with permanent magnets to ensure that the position remains unchanged after the shape adjustment. When the strip-shaped magnet-embedded gasket 10 is extended and contracted, the encoder 27 and the counting wheel 28 are used to count the extension and contraction length of the strip-shaped magnet-embedded gasket 10. The principle of the sealing gasket length adjustment mechanism 2 automatically releasing the strip-shaped magnetic sealing gasket 10 of corresponding length is as follows: the winding motor 26 first rewinds the material to the initial position, at which time the winding wheel 25 rotates to discharge the material, and the sealing gasket size and shape adjustment mechanism moves to pull out the strip-shaped magnetic sealing gasket 10. The discharge length is counted by the encoder 27 and the counting wheel 28, and the actual discharge length can be calculated; if the discharge length is preset to L, the outer diameter of the counting wheel 28 of the encoder 27 is D, and the actual discharge counting number of circles is N, N=L / πD.The X-axis servo module 29 can drive the Y-axis servo module 30 and the rotating T-axis module 16 to move in the X direction, and the Y-axis servo module 30 can drive the rotating T-axis module 16 to move in the Y direction. The rotating T-axis module 16 itself can rotate, thereby realizing the arbitrary position movement of the rotating strong magnetic head 15 that controls the rotating T-axis module 16. The present invention can adjust the shape of the adsorption cavity 14 formed by the strip-shaped magnetic sealing gasket 10, thereby realizing the arbitrary adjustment of the size and shape of the adsorption area. The overall structure is simple, which can greatly save the cost of manual intervention and the time of changeover; there is no need to customize multiple adsorption platforms to correspond to the adsorption of different products.

[0050] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A vacuum adsorption device whose adsorption area size and shape can be automatically adjusted, characterized in that: It comprises a downward pressure adsorption component (1), a sealing gasket length adjustment mechanism (2), a sealing gasket size and shape adjustment mechanism (3) and a vacuum supply system (4); The downward pressure adsorption component (1) comprises a guide sleeve (5), a guide rod (6), a vacuum adsorption platform (7) and an adsorption platform driving component (8); the sealing gasket length adjustment mechanism (2) comprises a sealing gasket adsorption platform (9), a strip-shaped magnetic sealing gasket (10), a coiling component (11), an external shaping magnet (12) and an internal shaping magnet (13); the guide sleeve (5) and the sealing gasket adsorption platform (9) are fixedly connected, the lower end of the guide rod (6) is located inside the guide sleeve (5), and the upper end of the guide rod (6) is connected to the vacuum adsorption platform (7); the adsorption platform driving component (8) is connected to the vacuum adsorption platform (9). The lower part of the platform (7); one end of the strip-shaped magnetic sealing gasket (10) is connected to the coil assembly (11), and the other end of the strip-shaped magnetic sealing gasket (10) is adsorbed on the top of the sealing gasket adsorption platform (9), and the strip-shaped magnetic sealing gasket (10) located above the sealing gasket adsorption platform (9) is closed to form an adsorption cavity (14); the external shaping magnet (12) is located outside the adsorption cavity (14), and the internal shaping magnet (13) is located inside the adsorption cavity (14), and the external shaping magnet (12) and the internal shaping magnet (13) are both adsorbed on the sealing gasket adsorption platform (9); The sealing gasket size and shape adjustment mechanism (3) comprises a rotating strong magnetic head (15), a rotating T-axis module (16) and a position adjustment drive assembly (17); the rotating strong magnetic head (15) is connected to the rotating T-axis module (16); the rotating T-axis module (16) is connected to the position adjustment drive assembly (17); the position adjustment drive assembly (17) drives the rotating T-axis module (16) and the rotating strong magnetic head (15) to move horizontally; the rotating T-axis module (16) drives the rotating strong magnetic head (15) to rotate; the rotating strong magnetic head (15) drives the outer shaping magnet (12) and the inner shaping magnet (13) to adjust the size and shape of the adsorption cavity (14) formed by the strip-shaped magnetically inlaid sealing gasket (10); The vacuum supply system (4) comprises a vacuum port air pipe, the end of which is connected to the interior of the adsorption cavity (14); The sealing pad adsorption platform (9) is provided with a first guide bearing (21) and a second guide bearing (22), and one end of the strip-shaped magnetic sealing pad (10) passes between the first guide bearing (21) and the second guide bearing (22); Passing through one end of the strip-shaped magnetic sealing gasket (10) between the first guide bearing (21) and the second guide bearing (22), and then leading out from between the first guide bearing (21) and the second guide bearing (22); The sealing pad adsorption platform (9) is provided with a sealing cylinder (23), the first guide bearing (21) is connected to the sealing cylinder (23), and the sealing cylinder (23) drives the first guide bearing (21) to press the strip-shaped magnetic sealing pad (10) between the first guide bearing (21) and the second guide bearing (22), so that the strip-shaped magnetic sealing pad (10) above the sealing pad adsorption platform (9) is closed to form an adsorption cavity (14).

2. The vacuum adsorption device according to claim 1, wherein the size and shape of the adsorption area can be automatically adjusted, Vacuum adsorption holes (19) are distributed on the vacuum adsorption platform (7), and the vacuum adsorption holes (19) cover the top of the adsorption cavity (14) formed by the strip-shaped magnetically inlaid sealing pad (10).

3. The vacuum adsorption device according to claim 2, wherein the size and shape of the adsorption area can be automatically adjusted, The adsorption platform driving components (8) are provided in two groups, and the two groups of the adsorption platform driving components (8) are symmetrically arranged on both sides of the vacuum adsorption platform (7); the guide sleeves (5) and the guide rods (6) are provided in four groups, and the four groups of the guide sleeves (5) are respectively connected to the four corners of the sealing pad adsorption platform (9), and the four groups of the guide rods (6) are respectively connected to the four corners of the vacuum adsorption platform (7).

4. The vacuum adsorption device according to claim 3, wherein the size and shape of the adsorption area can be automatically adjusted, An avoidance through hole (20) is provided at the edge of the sealing pad adsorption platform (9), and the driving end of the adsorption platform driving member (8) passes through the avoidance through hole (20) and is connected to the vacuum adsorption platform (7).

5. The vacuum adsorption device according to claim 1, wherein the size and shape of the adsorption area can be automatically adjusted, The coil assembly (11) comprises a coil mounting plate (24), a coil wheel (25) and a coil motor (26); one end of the coil mounting plate (24) is fixedly connected to the side of the sealing pad adsorption platform (9), the coil motor (26) is fixed below the coil mounting plate (24), and the coil wheel (25) is connected to the driving shaft of the coil motor (26); one end of the strip-shaped magnetically inlaid sealing pad (10) is connected to the coil wheel (25).

6. The vacuum adsorption device according to claim 5, wherein the size and shape of the adsorption area can be automatically adjusted, An encoder (27) is connected above the coil mounting plate (24), the encoder (27) is connected to a counting wheel (28), and the strip-shaped magnetically inlaid sealing gasket (10) passes through the counting wheel (28).

7. The vacuum adsorption device according to claim 1, wherein the size and shape of the adsorption area can be automatically adjusted, The position adjustment drive assembly (17) comprises an X-axis servo module (29) and a Y-axis servo module (30); the moving part of the X-axis servo module (29) is connected to the Y-axis servo module (30), and the moving part of the Y-axis servo module (30) is connected to the rotating T-axis module (16).

8. The vacuum adsorption device according to claim 1, wherein the size and shape of the adsorption area can be automatically adjusted, The vacuum supply system (4) includes a vacuum filter, a vacuum-to-filter air pipe, a vacuum generator, a solenoid valve, an L-shaped rotary joint and an air intake pipe; one end of the vacuum port air pipe is connected to the adsorption cavity (14), and the other end of the vacuum port air pipe is connected to the vacuum filter; the vacuum filter is connected to the vacuum generator via the vacuum-to-filter air pipe; the vacuum generator is connected to the solenoid valve via the adapter air pipe; and the solenoid valve is connected to the air intake pipe via the L-shaped rotary joint.

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