A degaussing device and method for an encapsulated component

Abstract

The present invention discloses a degaussing device and a degaussing method for encapsulated components, including a PLC control cabinet; a fixing plate is fixedly arranged above the PLC control cabinet; a lead screw is rotatably connected to the fixing plate; an adjusting block is threadedly connected to the lead screw; a slider is fixedly connected to one side of the adjusting block away from the fixed rod; a first mounting plate is fixedly connected to one side of the slider away from the fixed rod by screws; when the lead screw drives the storage box to move, the telescopic cylinder operates synchronously, so that the storage box moves longitudinally while moving horizontally. At this time, the movement trajectory of the storage box presents an arc and coincides with the isointensity curve on the degausser. When the storage box carries the encapsulated components and moves above the degausser, degaussing can be performed in a magnetic field with a substantially the same field strength, achieving the best degaussing effect and ensuring that magnetic attraction does not occur during subsequent processing, resulting in smooth feeding or material inlet of the total inspection machine and CCD misjudgment and other situations.

Description

Technical Field

[0001] The present invention belongs to the technical field of degaussing equipment, and particularly relates to a degaussing equipment and method for packaged components. Background Art

[0002] A degausser is a device used to eliminate the magnetization state of an object. It can eliminate or reduce the magnetic field in the object through the generated opposite magnetic field, making it return to its original state. For example, packaged components such as resonators and oscillators need to be adsorbed and grasped one by one during production, detection, or assembly due to their miniaturized design. If they still have magnetism at this time, it will cause the packaged components to attract each other, resulting in situations such as smooth feeding or feeding problems in the total inspection machine and misjudgment by the CCD.

[0003] Patent CN209708747U discloses a degausser for quartz crystal resonators, which mainly includes a motor, a turntable, and a degausser. When in use, the resonator is placed inside the placement groove on the turntable, and the turntable is driven to rotate by the motor. Then, when the resonator rotates with the turntable, it continuously passes through the degausser, thereby completing the degaussing work of the resonator.

[0004] In the technical solution of the above patent, the component is carried by the turntable through the magnetic field of the degausser to achieve the purpose of degaussing. However, during the degaussing process, the component degaussing is always in a magnetic field environment with different field strengths. If the field strength is too small, the degaussing effect of the component becomes poor. If the field strength is too large, it is easy to cause damage to the component or generate new residual magnetism, making it difficult to completely eliminate the magnetism. At the same time, for packaged components of different specifications, the magnetic field environment of the degausser cannot be adjusted, so there are still certain limitations. Summary of the Invention

[0005] The purpose of the present invention is to provide a degaussing equipment and method for packaged components to solve the technical problems in the prior art that the packaged components cannot be degaussed in a magnetic field environment with a fixed field strength and cannot be degaussed in a magnetic field environment with different field strengths for packaged components of different volumes.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A degaussing equipment and method for packaged components includes a PLC control cabinet; a fixed plate is fixedly arranged above the PLC control cabinet; a screw rod is rotatably connected to the fixed plate;

[0008] An adjusting block is threadedly connected to the screw rod; a slider is fixedly connected to the side of the adjusting block away from the fixed rod; a first mounting plate is fixedly connected to the side of the slider away from the fixed rod by screws; a telescopic cylinder is fixedly connected to the first mounting plate;

[0009] A storage box is provided at the output end of the telescopic cylinder; a demagnetizer is fixedly provided on the top of the PLC control cabinet, and the storage box is located above the demagnetizer.

[0010] Preferably, two fixing rods are fixedly connected to one side of the top of the fixing rod by screws; the fixing plate is fixedly provided on the upper part of the fixing rod; the long side surface of the fixing plate is perpendicular to the horizontal plane.

[0011] Preferably, a chute is provided on the slider; a guide plate is fixedly connected to the side of the fixing plate away from the fixing rod through a plate body, and the guide plate fits with the chute on the slider, and the slider is slidably connected to the guide plate.

[0012] Preferably, a driving motor is fixedly provided at one end of the fixing plate, and the output end of the driving motor is connected to the screw rod.

[0013] Preferably, a second mounting plate arranged longitudinally is fixedly connected to the output end of the telescopic cylinder, and the storage box is fixedly provided at the output end of the telescopic cylinder through the second mounting plate.

[0014] Preferably, the motor drives the screw rod to rotate, and the screw rod makes the storage box containing the demagnetization element move horizontally, and the telescopic cylinder makes the storage box move vertically. During the synchronous horizontal and vertical movement of the storage box, the movement trajectory of the storage box presents a semicircle or an arc.

[0015] Preferably, a method for demagnetizing packaged components includes the following steps:

[0016] S100: Set the magnetic field range and field strength of the demagnetizer according to the volume of the demagnetization element;

[0017] S200: Set the horizontal movement trajectory and movement speed of the storage box on the screw rod according to the magnetic field data of the demagnetizer;

[0018] S300: Place the demagnetization element into the storage box to complete the preparation work before demagnetization;

[0019] S400: The PLC control cabinet controls the horizontal movement of the storage box, makes the storage box move vertically synchronously, and makes the storage box carrying the demagnetization element move on the equal-field-strength curve of the demagnetizer to achieve the demagnetization purpose;

[0020] S500: Utilize the cooperation of the screw rod and the telescopic cylinder to make the storage box move reciprocally, perform demagnetization cyclically until the magnetic quantity reaches the expected standard and then end;

[0021] S600: Take out the demagnetized packaged component from the storage box and reset the storage box.

[0022] Preferably, in the S100 step, the voltage of the demagnetizer is set by the PLC control cabinet, and the magnetic field range and field strength of the demagnetizer are changed by controlling the voltage.

[0023] Preferably, in the step S400, the PLC control cabinet calculates the longitudinal movement distance of the storage box in real time according to the lateral movement distance of the storage box;

[0024] The PLC control cabinet synchronously controls the movement of the telescopic cylinder and the screw rod according to the calculation results;

[0025] Real-time calculation formula:

[0026]

[0027] Among them, z is the longitudinal height of the storage box that needs to be adjusted by the telescopic cylinder, x is the lateral position of the storage box on the screw, x0 and z0 are the fixed position coordinates of the demagnetizer, k is the field strength coefficient of the demagnetizer, n is the exponent of the magnetic field attenuation, B target is the magnetic field strength.

[0028] Preferably, in step S500, the reciprocating movement trajectory of the storage box coincides with the equal field strength curve on the demagnetizer.

[0029] Beneficial effects of the present invention:

[0030] 1) When the motor of the present invention drives the screw to rotate and move the storage box horizontally, the lateral position of the storage box on the screw can be obtained, and then the longitudinal position coordinates of the storage box on the telescopic cylinder can be calculated in real time based on the lateral position coordinates. Therefore, when the screw drives the storage box to move, the telescopic cylinder operates synchronously, so that the storage box moves longitudinally while moving horizontally. At this time, the motion trajectory of the storage box is arc-shaped and coincides with the equal field strength curve on the demagnetizer. When the storage box carrying the packaged components moves above the demagnetizer, it can be demagnetized in a magnetic field with roughly the same field strength, achieving the best demagnetization effect, ensuring that magnetic attraction will not occur during subsequent processing, resulting in the general inspection machine feeding or feeding not being smooth and CCD misjudgment.

[0031] 2) When the present invention demagnetizes packaged components, since the magnetic quantities carried by packaged components of different volumes are different, the magnetic field range and magnetic field strength of the demagnetizer can be adjusted through the PLC control cabinet. The magnetic field strength and magnetic field range of the demagnetizer are adapted to the volume of the packaged components, ensuring that packaged components of different volumes can be demagnetized under appropriate field strengths to achieve the best demagnetization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a front view of the present invention;

[0035] Figure 3 It is a schematic structural diagram of the adjusting block in the present invention;

[0036] Figure 4 It is a sectional view of the guide plate structure in the present invention;

[0037] Figure 5 It is a schematic diagram of the circular magnetic field distribution of the degausser in the present invention;

[0038] Figure 6 It is a schematic diagram of the elliptical magnetic field distribution of the degausser in the present invention;

[0039] In the figure: 1, PLC control cabinet; 2, degausser; 3, fixed rod; 4, fixed plate; 5, drive motor; 6, screw rod; 7, guide plate; 8, slider; 9, adjusting block; 10, first mounting plate; 11, telescopic cylinder; 12, second mounting plate; 13, storage box. Specific embodiments

[0040] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0041] Please refer to Figures 1 - 4 As shown, a packaging component degaussing device and degaussing method include a PLC control cabinet 1; two fixed rods 3 are fixedly connected to one side of the top of the PLC control cabinet 1 by screws; the upper parts of the fixed rods 3 are commonly fixedly connected with a fixed plate 4, and the long side surface of the fixed plate 4 is perpendicular to the horizontal plane; a drive motor 5 is fixedly arranged at one end of the fixed plate 4; the output end of the drive motor 5 is fixedly connected with a screw rod 6.

[0042] An adjusting block 9 is threadedly connected to the screw rod 6; one side of the adjusting block 9 away from the fixed rod 3 is fixedly connected with a slider 8 by screws, and a chute is provided on the slider 8; one side of the fixed plate 4 away from the fixed rod 3 is fixedly connected with a guide plate 7 ( Figure 1 The guide plate 7 shown is a sectional body), the guide plate 7 fits with the chute on the slider 8, and the slider 8 is slidably connected to the guide plate 7; one side of the slider 8 away from the fixed rod 3 is fixedly connected with a first mounting plate 10 by screws; a telescopic cylinder 11 is fixedly connected to the first mounting plate 10.

[0043] The output end of the telescopic cylinder 11 is fixedly connected with a longitudinally arranged second mounting plate 12; a storage box 13 is fixedly connected to the second mounting plate 12 by screws; a degausser 2 is fixedly arranged on the top of the PLC control cabinet 1, and the storage box 13 is located above the degausser 2.

[0044] The lead screw 6 is used to cooperate with the driving motor 5 to carry the storage box 13 for horizontal movement; the telescopic cylinder 11 is used to carry the storage box 13 for vertical movement; the storage box 13 is used to store the demagnetization elements to be demagnetized; the demagnetizer 2 is used to demagnetize the demagnetization elements stored inside the storage box 13.

[0045] To facilitate the understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below:

[0046] Please refer to Figure 5 and Figure 6 When the demagnetizer 2 is in the open state, the shape of the magnetic field distribution of the demagnetizer 2 often presents as a spherical or quasi-spherical shape centered on the demagnetizer 2. Moreover, the farther away from the demagnetizer 2, the smaller the field strength. According to this rule, in the magnetic field distribution of the demagnetizer 2, on the same circular or quasi-circular (can be regarded as elliptical) trajectory, the field strength is equal.

[0047] Therefore, during the demagnetization process of the demagnetization elements to be demagnetized, the motor drives the lead screw 6 to rotate, and the lead screw 6 is used to make the storage box 13 containing the demagnetization elements to be demagnetized move horizontally. The telescopic cylinder 11 makes the storage box 13 move vertically. During the synchronous horizontal and vertical movement of the storage box 13, the movement trajectory of the storage box 13 presents as a semi-circular or arc shape. At this time, the movement trajectory of the storage box 13 is made similar to the shape of the magnetic field distribution at the same field strength of the demagnetizer 2.

[0048] At this time, in order to make the movement trajectory of the storage box 13 coincide with the trajectory at the same field strength of the magnetic field, ensure that the demagnetization elements inside the storage box 13 are always demagnetized in an environment with the same field strength, and improve the demagnetization effect, the movement trajectory of the storage box 13 can be controlled by the synchronous cooperation of the lead screw 6 and the telescopic cylinder 11 to make it move on a suitable field strength distribution trajectory; the PLC control cabinet 1 can use the following calculation formula to synchronously make the telescopic cylinder 11 control the vertical movement of the storage box 13 when the lead screw 6 controls the horizontal movement of the storage box 13:

[0049]

[0050] where z is the vertical height that the storage box 13 needs to be adjusted by the telescopic cylinder 11, x is the horizontal position of the storage box 13 on the lead screw 6, x0 and z0 are the fixed position coordinates of the demagnetizer 2, k is the field strength coefficient of the demagnetizer 2, n is the exponent of magnetic field attenuation, and B target is the magnetic field intensity.

[0051] In specific use, the following steps are used to demagnetize the encapsulated elements:

[0052] S100: Use the PLC control cabinet 1 to set the voltage magnitude of the demagnetizer 2, and change the magnetic field range and field strength magnitude of the demagnetizer 2 by controlling the voltage to adapt to the volume of the demagnetization elements to be demagnetized;

[0053] S200: Set the lateral movement trajectory of the storage box 13 on the lead screw 6 according to the magnetic field data of the degausser 2;

[0054] S300: Place the component to be degaussed inside the storage box 13 to complete the preparations before degaussing;

[0055] S400: The PLC control cabinet 1 calculates in real time the distance that the telescopic rod should output based on the lateral movement distance of the storage box 13, causing the storage box 13 to move longitudinally synchronously, so that the storage box 13 carrying the component to be degaussed moves on the equal magnetic field intensity curve of the degausser 2 to achieve the purpose of degaussing;

[0056] S500: Utilize the cooperation of the lead screw 6 and the telescopic cylinder 11 to make the storage box 13 reciprocate on the equal magnetic field intensity curve and perform degaussing cyclically until the magnetic quantity reaches the expected standard and then it can end;

[0057] S600: Take out the degaussed component from the storage box 13 and reset the storage box 13.

[0058] In S100, when degaussing the encapsulated components, since the sizes of the encapsulated components are different, for example: 3.2mm×2.5mm×0.007mm, 1.0mm×0.8mm×0.005mm, the magnetic quantities carried by the encapsulated components of different volumes are different. The PLC control cabinet 1 can adjust the magnetic field range and magnetic field intensity of the degausser 2, and the magnetic field intensity and magnetic field range of the degausser 2 are adapted to the volume of the encapsulated components, ensuring that the encapsulated components of different volumes can be degaussed under a suitable magnetic field intensity to achieve the best degaussing effect.

[0059] In S400, the storage box 13 has an initial fixed position. When the motor drives the lead screw 6 to rotate and the storage box 13 moves horizontally, the lateral position of the storage box 13 on the lead screw 6 can be obtained, and then the longitudinal position coordinate of the storage box 13 on the telescopic cylinder 11 can be calculated in real time according to the lateral position coordinate. Therefore, when the lead screw 6 drives the storage box 13 to move, the telescopic cylinder 11 operates synchronously, causing the storage box 13 to move longitudinally while moving horizontally. At this time, the movement trajectory of the storage box 13 presents an arc and fits with the equal magnetic field intensity curve on the degausser 2. When the storage box 13 carries the encapsulated component and moves above the degausser 2, it can be degaussed in a magnetic field with a roughly the same magnetic field intensity, achieving the best degaussing effect and ensuring that there will be no magnetic attraction during subsequent processing, resulting in situations such as smooth feeding or feeding problems of the total inspection machine and misjudgment of the CCD.

[0060] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0061] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaged component demagnetization device, comprising a PLC control cabinet (1); characterized in that: A fixed plate (4) is fixedly provided above the PLC control cabinet (1); a screw rod (6) is rotatably connected to the fixed plate (4); The screw rod (6) is threadedly connected to an adjusting block (9); a side of the adjusting block (9) away from the fixed rod (3) is fixedly connected to a slider (8); a side of the slider (8) away from the fixed rod (3) is fixedly connected to a first mounting plate (10) via screws; a telescopic cylinder (11) is fixedly connected to the first mounting plate (10); The output end of the telescopic cylinder (11) is provided with a storage box (13); a demagnetizer (2) is fixedly provided on the top of the PLC control cabinet (1), and the storage box (13) is located above the demagnetizer (2); The PLC control cabinet (1) controls the lateral movement of the storage box (13), so that the storage box (13) moves longitudinally synchronously, so that the storage box (13) carrying the components to be demagnetized moves on the equal field strength curve of the demagnetizer (2), thereby achieving the purpose of demagnetization; The PLC control cabinet (1) calculates the longitudinal movement distance of the storage box (13) in real time based on the lateral movement distance of the storage box (13); The PLC control cabinet (1) synchronously controls the telescopic cylinder (11) and the screw rod (6) to move according to the calculation results; Real-time calculation formula: ； Wherein, z is the longitudinal height of the storage box (13) that needs to be adjusted by the telescopic cylinder (11), and x is the transverse position of the storage box (13) on the screw rod (6). and is the fixed position coordinate of the demagnetizer (2), k is the field strength coefficient of the demagnetizer (2), n is the exponent of the magnetic field attenuation, is the magnetic field strength.

2. The packaged component degaussing device according to claim 1, characterized in that: One side of the top of the fixing rod (3) is fixedly connected to two fixing rods (3) via screws; the fixing plate (4) is fixedly arranged on the upper part of the fixing rod (3); the long side surface of the fixing plate (4) is perpendicular to the horizontal plane.

3. The packaged component degaussing device according to claim 1, characterized in that: The slider (8) is provided with a sliding groove; a guide plate (7) is fixedly connected to the side of the fixed plate (4) away from the fixed rod (3) through the plate body, the guide plate (7) and the sliding groove on the slider (8) fit together, and the slider (8) is slidably connected to the guide plate (7).

4. The packaged component degaussing device according to claim 1, characterized in that: A drive motor (5) is fixedly provided on one end of the fixed plate (4), and an output end of the drive motor (5) is connected to a screw rod (6).

5. The packaged component degaussing device according to claim 1, characterized in that: The output end of the telescopic cylinder (11) is fixedly connected to a longitudinally arranged second mounting plate (12), and the storage box (13) is fixedly arranged on the output end of the telescopic cylinder (11) via the second mounting plate (12).

6. The packaged component degaussing device according to claim 1, characterized in that: The motor drives the screw rod (6) to rotate, and the screw rod (6) causes the storage box (13) containing the element to be demagnetized to move horizontally, and the telescopic cylinder (11) causes the storage box (13) to move vertically. During the process of the storage box (13) moving horizontally and vertically synchronously, the movement trajectory of the storage box (13) presents a semicircular or arc shape.

7. A method for demagnetizing a packaged component, applicable to the packaged component demagnetization device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S100: setting the magnetic field range and field strength of the demagnetizer (2) according to the volume of the component to be demagnetized; S200: According to the magnetic field data of the demagnetizer (2), the lateral movement trajectory and movement speed of the storage box (13) on the screw rod (6) are set; S300: placing the component to be demagnetized into the storage box (13) to complete the preparation work before demagnetization; S400: The PLC control cabinet (1) controls the storage box (13) to move horizontally, so that the storage box (13) moves longitudinally synchronously, so that the storage box (13) carrying the components to be demagnetized moves on the equal field strength curve of the demagnetizer (2), thereby achieving the purpose of demagnetization; S500: Utilizing the cooperation between the screw rod (6) and the telescopic cylinder (11), the storage box (13) is moved back and forth, and the demagnetization is cyclically performed until the magnetic quantity reaches the expected standard; S600: taking the demagnetized packaged component out of the storage box (13) and resetting the storage box (13).

8. The method for demagnetizing a packaged component according to claim 7, wherein: In the step S100, the voltage of the demagnetizer (2) is set by using the PLC control cabinet (1), and the magnetic field range and field strength of the demagnetizer (2) are changed by controlling the voltage.

9. The method for demagnetizing a packaged component according to claim 7, wherein: In the step S400, the PLC control cabinet (1) calculates the longitudinal movement distance of the storage box (13) in real time based on the lateral movement distance of the storage box (13); The PLC control cabinet (1) synchronously controls the telescopic cylinder (11) and the screw rod (6) to move according to the calculation results; Real-time calculation formula: ； Wherein, z is the longitudinal height of the storage box (13) that needs to be adjusted by the telescopic cylinder (11), and x is the transverse position of the storage box (13) on the screw rod (6). and is the fixed position coordinate of the demagnetizer (2), k is the field strength coefficient of the demagnetizer (2), n is the exponent of the magnetic field attenuation, is the magnetic field strength.

10. The method for demagnetizing a packaged component according to claim 7, wherein: In the step S500, the reciprocating movement trajectory of the storage box (13) coincides with the equal field strength curve on the demagnetizer (2).

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