Dispensing method of a dispensing mechanism

Abstract

The application provides a dispensing method of a dispensing mechanism, which can be used in the field of precise dispensing technology. The dispensing mechanism comprises a rack, an electromagnetic lifting device installed on the rack, and a dispensing valve body connected with the electromagnetic lifting device; a dispensing controller is further installed on the rack, the dispensing valve body and the electromagnetic lifting device are respectively electrically connected with the dispensing controller, and the dispensing controller is further connected with an upper computer; the dispensing method comprises the following steps: the upper computer sends height stroke information to the dispensing controller; the dispensing controller forwards the height stroke information to the electromagnetic lifting device; the electromagnetic lifting device drives the dispensing valve body to perform lifting movement according to the height stroke information; and the dispensing valve body completes a dispensing operation in each lifting movement. The dispensing method of the dispensing mechanism provided by the application can improve the dispensing efficiency of the dispensing mechanism.

Description

Technical Field

[0001] This application relates to the field of precision dispensing technology, specifically to a dispensing method for a dispensing mechanism. Background Technology

[0002] Currently, in the field of precision dispensing (such as dispensing for narrow bezels in full-screen mobile phones), defects often occur due to inconsistent product (substrate) heights. Therefore, it is necessary to adjust the dispensing nozzle height in real time to ensure dispensing accuracy and quality. The commonly used dispensing method typically involves measuring the height at or near the dispensing location and setting the dispensing valve height accordingly, then dispensing while maintaining a relatively constant valve height. However, if dispensing needs to be done on different planes, the machine must be stopped to adjust the valve height once before dispensing can resume, significantly impacting dispensing efficiency. Another dispensing method with a base allows for low-frequency height adjustments. However, in applications with high dispensing frequencies, the base height adjustment frequency cannot match, severely affecting dispensing efficiency. Summary of the Invention

[0003] To address the problems in the prior art, embodiments of this application provide a dispensing method for a dispensing mechanism, which can at least partially solve the problems existing in the prior art.

[0004] On the one hand, this application proposes a dispensing method for a dispensing mechanism, the dispensing mechanism including a frame, an electromagnetic lifting device mounted on the frame, and a dispensing valve body connected to the electromagnetic lifting device; a dispensing controller is also mounted on the frame, the dispensing valve body and the electromagnetic lifting device are electrically connected to the dispensing controller, and the dispensing controller is also connected to a host computer;

[0005] The dispensing method includes:

[0006] The host computer sends the height travel information to the dispensing controller;

[0007] The dispensing controller forwards the height travel information to the electromagnetic lifting device;

[0008] The electromagnetic lifting device drives the dispensing valve body to move up and down according to the height travel information;

[0009] The dispensing valve body completes one dispensing operation with each lifting and lowering movement.

[0010] In some embodiments, the lifting frequency of the electromagnetic lifting device is greater than 10Hz.

[0011] In some embodiments, the lifting frequency of the electromagnetic lifting device is 60Hz to 80Hz.

[0012] In some embodiments, the frame includes a base, a vertical support column connected to the base, and a horizontal mounting bracket connected to the support column, the horizontal mounting bracket being located above the base; wherein,

[0013] The dispensing controller is mounted on the base, and the electromagnetic lifting device is vertically mounted on the horizontal mounting frame;

[0014] A two-dimensional planar motion device is provided on the base, and the dispensing device is mounted on the two-dimensional planar motion device.

[0015] In some embodiments, the horizontal mounting bracket is further equipped with a displacement camera for determining the position where the dispensing device needs to be dispensed. The displacement camera is connected to a host computer via a first wired communication cable, and the host computer is connected to the dispensing controller via a second wired communication cable.

[0016] The horizontal mounting bracket is also equipped with an optical rangefinder for moving to the dispensing position of the device to be dispensed and measuring the height of the dispensing position. The optical rangefinder is connected to the host computer via a third wired communication cable.

[0017] In some embodiments, before the host computer sends the height travel information to the dispensing controller, the method further includes:

[0018] The displacement camera uses optical positioning to sequentially determine the positions where glue needs to be applied to the components on the two-dimensional planar motion device, and sends the position of each glued component to the host computer.

[0019] The host computer controls the optical rangefinder to move the measuring points sequentially to the dispensing positions of each of the dispensing devices;

[0020] After the optical rangefinder measuring point moves to the dispensing position of each of the dispensing devices, the optical rangefinder measures the height of the dispensing position of the device.

[0021] The optical rangefinder sends the height of the dispensing location for each dispensing device to the host computer.

[0022] The host computer generates the height travel information of the electromagnetic lifting device based on the dispensing position and the height of each dispensing position of the device to be dispensed.

[0023] In some embodiments, the electromagnetic lifting device includes a housing mounted on the horizontal mounting frame, an electromagnetic cylinder mounted inside the housing, and a telescopic rod connected to the electromagnetic cylinder, with one end of the telescopic rod located inside the electromagnetic cylinder and the other end extending out of the electromagnetic cylinder; the dispensing valve body is connected to the end of the telescopic rod extending out of the electromagnetic cylinder.

[0024] In some embodiments, a magnet is provided inside the electromagnetic cylinder, and an electromagnetic coil is provided on the telescopic rod. When the electromagnetic coil is energized, it generates an electromagnetic force that interacts with the magnet, thereby driving the telescopic rod to extend and retract.

[0025] In some embodiments, a support seat mounted on the housing is provided directly in front of the end of the telescopic rod that extends out of the electromagnetic cylinder, and a preload adjustment rod threadedly connected to the support seat is mounted on the support seat;

[0026] One end of the pre-tightening adjustment rod extends out of the support seat and is close to the telescopic rod, while the other end extends out of the support seat and is away from the telescopic rod;

[0027] A spring is also provided between the pretension adjustment rod and the telescopic rod. One end of the spring is sleeved on the end of the telescopic rod that extends out of the electromagnetic cylinder, and the other end of the spring is sleeved on the end of the pretension adjustment rod near the telescopic rod. The spring is engaged between a first stop block provided at the end of the telescopic rod that extends out of the electromagnetic cylinder and a second stop block provided on the pretension adjustment rod near the end of the telescopic rod.

[0028] In some embodiments, the dispensing valve body is connected to the telescopic rod via a T-shaped connecting base. The lateral portion of the T-shaped connecting base is attached to the side of the dispensing valve body and fixedly connected to the dispensing valve body, while the vertical portion is perpendicular to the telescopic rod and connected to a first stop block provided on the telescopic rod.

[0029] This application provides a dispensing method for a dispensing mechanism, which uses an electromagnetic lifting device with high-frequency response characteristics as the lifting device of the dispensing mechanism. This overcomes the problem of low response frequency of current dispensing mechanism lifting devices. In addition, the preparation of height stroke information is completed before the dispensing operation, so that the dispensing operation for different dispensing devices can be completed continuously without stopping the machine midway to test the dispensing height. This further improves the dispensing efficiency of the dispensing mechanism and can be applied to scenarios with high dispensing frequency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0031] Figure 1 This is a schematic diagram of the dispensing mechanism provided in one embodiment of this application.

[0032] Figure 2This is a schematic flowchart of a dispensing method of a dispensing mechanism provided in one embodiment of this application.

[0033] Figure 3 This is a schematic diagram of the structure of a dispensing valve and an electromagnetic lifting device provided in an embodiment of this application.

[0034] Figure 4 This is a cross-sectional view of a dispensing valve and an electromagnetic lifting device provided in an embodiment of this application.

[0035] Figure 5 This is a partial flowchart illustrating a dispensing method of a dispensing mechanism according to an embodiment of this application. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments and their descriptions are used to explain this application, but are not intended to limit this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily arranged.

[0037] The terms “first,” “second,” etc., used in this document are not intended to specifically refer to order or sequence, nor are they used to limit this application; they are merely used to distinguish elements or operations described using the same technical terms.

[0038] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0039] The term "and / or" as used in this document includes any or all of the items mentioned.

[0040] Figure 1 This is a schematic diagram of the dispensing mechanism provided in one embodiment of this application, as shown below. Figure 1 As shown, the dispensing mechanism provided in this application embodiment includes: a frame 11, an electromagnetic lifting device 12 mounted on the frame 11, and a dispensing valve body 13 connected to the electromagnetic lifting device 12; a dispensing controller 14 is also mounted on the frame 11, the dispensing valve body 13 and the electromagnetic lifting device 12 are electrically connected to the dispensing controller 14 respectively, and the dispensing controller 14 is also connected to a host computer 17.

[0041] Based on the dispensing mechanism provided in the above embodiments, one embodiment of this application provides a dispensing method for the dispensing mechanism, such as... Figure 2 As shown, the dispensing method includes:

[0042] S101, The host computer sends the height travel information to the dispensing controller;

[0043] S102, The dispensing controller forwards the height travel information to the electromagnetic lifting device;

[0044] S103. The electromagnetic lifting device drives the dispensing valve body to move up and down according to the height stroke information.

[0045] S104. The dispensing valve body completes one dispensing operation during each lifting and lowering movement.

[0046] Specifically, the height travel information is generated based on the height of the position where the dispensing device needs to be dispensed, and is used to control the lifting and lowering movement of the electromagnetic lifting device; the dispensing valve body performs the dispensing operation when it reaches the lowest height during each lifting and lowering movement.

[0047] This application provides a dispensing method for a dispensing mechanism, which uses an electromagnetic lifting device with high-frequency response characteristics as the lifting device of the dispensing mechanism, overcoming the problem of low response frequency of current dispensing mechanism lifting devices. In addition, the preparation of height stroke information is completed before the dispensing operation, so that the dispensing operation for different dispensing devices can be completed continuously without stopping the machine midway to test the dispensing height, further improving the dispensing efficiency of the dispensing mechanism and enabling it to be applied in scenarios with high dispensing frequency.

[0048] Existing technologies using Z-axis lifting devices with a base platform can only be used for low-frequency dispensing scenarios with a maximum frequency of 10Hz. They cannot match dispensing frequencies above 10Hz, limiting their application range and preventing high-frequency dispensing and real-time adjustment of dispensing height, thus affecting dispensing efficiency. The dispensing mechanism provided in this application can utilize the high-frequency response characteristics of electromagnetic lifting devices to achieve dispensing frequencies greater than 10Hz. In some application scenarios, the lifting frequency can reach 60Hz to 80Hz (e.g., 70Hz), or even 100Hz, achieving high-frequency dispensing, improving dispensing efficiency, and overcoming the problem of low dispensing efficiency caused by the limitation of height adjustment frequency in existing dispensing mechanisms.

[0049] like Figure 1 As shown, in some embodiments, the frame 11 includes a base, a vertical support column connected to the base, and a horizontal mounting frame connected to the support column, with the horizontal mounting frame located above the base. The dispensing controller 14 is mounted on the base, and the electromagnetic lifting device 12 is vertically mounted on the horizontal mounting frame. A two-dimensional planar motion device 15 is provided on the base, and the dispensing device 2 is mounted on the two-dimensional planar motion device 15. The dispensing devices 2 can be arranged in an array on the two-dimensional planar motion device 15, which can drive the dispensing devices 2 to move in a two-dimensional plane, aligning the dispensing nozzle on the dispensing valve body 13 with the required dispensing position of the dispensing device 2.

[0050] like Figure 1As shown, in some embodiments, a displacement camera 16 is also installed on the horizontal mounting bracket to determine the position where the dispensing device 2 needs to be dispensed. The displacement camera 16 is connected to the host computer 17 via a first wired communication cable, and the host computer 17 is connected to the dispensing controller 14 via a second wired communication cable. Specifically, the displacement camera 16 determines the position where the dispensing device 2 needs to be dispensed by pre-adjusting positioning or optical positioning and transmits the measured data to the host computer 17 via the first wired communication cable.

[0051] like Figure 1 As shown, in some embodiments, an optical rangefinder 18 is also installed on the horizontal mounting bracket for moving to the dispensing position of the device 2 to measure the height of the dispensing position. The optical rangefinder 18 is connected to the host computer 17 via a third wired communication cable. Specifically, the optical rangefinder 18 moves its measuring point to the dispensing position of the device 2, measures the height of the dispensing position, and transmits the measured data to the host computer 17 via a second wired communication cable.

[0052] like Figure 1 As shown, in some embodiments, the dispensing valve body 13 and the dispensing controller 14 are connected by a first electrical cable, and the electromagnetic lifting device 12 and the dispensing controller 14 are connected by a second electrical cable.

[0053] like Figure 3 As shown, in some embodiments, the electromagnetic lifting device 12 includes a housing 126 mounted on a horizontal mounting frame, an electromagnetic cylinder 122 mounted inside the housing 121, and a telescopic rod 123 connected to the electromagnetic cylinder 122. One end of the telescopic rod 123 is located inside the electromagnetic cylinder 122, and the other end extends out of the electromagnetic cylinder 122. The dispensing valve body 13 is connected to the end of the telescopic rod 123 that extends out of the electromagnetic cylinder 122. Specifically, the electromagnetic lifting device 12 can be a servo motor system based on electromagnetic cylinder technology. The telescopic rod 123 of the electromagnetic lifting device 12 moves vertically along the electromagnetic cylinder 122, driving the dispensing valve body 13 to move vertically.

[0054] like Figure 3As shown, in some embodiments, a support seat 124 mounted on the housing 121 is provided directly in front of the end of the telescopic rod 123 that extends out of the electromagnetic cylinder 122. A pre-tightening adjustment rod 125 threadedly connected to the support seat 124 is installed on the support seat 124. One end of the pre-tightening adjustment rod 125 extends out of the support seat 124 near the telescopic rod 123, and the other end extends out of the support seat 124 away from the telescopic rod 123. A spring 126 is also provided between the pre-tightening adjustment rod 125 and the telescopic rod 123. One end of the spring 126 is sleeved on the end of the telescopic rod 123 that extends out of the electromagnetic cylinder 122, and the other end of the spring 126 is sleeved on the end of the pre-tightening adjustment rod 125 that is near the telescopic rod 123. The spring 126 is engaged between the first stop 1231 provided on the end of the telescopic rod 123 that extends out of the electromagnetic cylinder 122 and the second stop 1251 provided on the end of the pre-tightening adjustment rod 125 that is near the telescopic rod 123. Specifically, the maximum stroke of the telescopic rod 123 can be controlled by adjusting the position of the preload adjustment rod 125 relative to the support base 124 (tightening or loosening).

[0055] like Figure 3 As shown, in some embodiments, the dispensing valve body 13 is connected to the telescopic rod 123 via a T-shaped connecting base 19. The horizontal portion of the T-shaped connecting base 19 is attached to the side of the dispensing valve body 13 and fixedly connected to the dispensing valve body 13, while the vertical portion is perpendicular to the telescopic rod 123 and connected to the first stop 1231 provided on the telescopic rod 123.

[0056] like Figure 4 As shown, in some embodiments, the electromagnetic lifting device further includes: a magnet disposed within the electromagnetic cylinder. Figure 4 7). The telescopic rod is sleeved on the magnet, and an electromagnetic coil is provided on the telescopic rod. Figure 4 6), the electromagnetic coil ( Figure 4 6) When energized, it interacts with the magnet ( Figure 4 7) generates an interacting electromagnetic force, thereby driving the telescopic rod to extend or retract. In this application, the magnet can have various shapes, such as... Figure 4 The cylindrical shape.

[0057] As a power source, the electromagnetic lifting device inherently possesses the capabilities of synchronous response and high-frequency state switching. In the electromagnetic coil ( Figure 4 (6) When the power is turned on, a positive electromagnetic force is generated inside the electromagnetic lifting device, which pushes the internal telescopic rod ( Figure 41) Forward linear motion: When the power supply polarity switches, a reverse electromagnetic force is synchronously generated inside the electromagnetic lifting device, which then quickly pulls its internal telescopic rod in the opposite linear motion. Therefore, by controlling the high-frequency switching of the power supply polarity of the electromagnetic lifting device through an external circuit, the dispensing valve, rigidly fixed to the telescopic rod of the electromagnetic lifting device, can be subjected to corresponding high-frequency switching electromagnetic thrust and pull forces. Since the dispensing valve has a very small mass, the magnitude and direction of its acceleration and velocity can be precisely controlled by the electromagnetic force it receives, thereby achieving precise positioning and high-frequency response of the dispensing valve.

[0058] like Figure 4 As shown, in some embodiments of this application, the electromagnetic lifting device includes: a guide bearing ( Figure 4 4) and guide rod ( Figure 4 2); the guide rod ( Figure 4 2) passing through the guide bearing ( Figure 4 4); the guide rod ( Figure 4 The bottom of 2) is connected to the telescopic rod ( Figure 4 1) Fixed connection.

[0059] like Figure 4 As shown, in some embodiments of this application, the electromagnetic lifting device further includes: a guide through hole; the guide bearing ( Figure 4 4) is disposed inside the guide through hole; a limiting pad for fixing the position of the guide bearing is disposed in the guide through hole. Figure 4 5); A rigid retaining ring is provided at the upper end of the guide through hole (in the middle). Figure 4 (8) The upper end of the guide rod is provided with a shock-absorbing pad at the contact position with the rigid retaining ring. Figure 4 (3)

[0060] like Figure 4 As shown, in some embodiments of this application, the guide rod ( Figure 4 The lower end of (2) is a T-shaped structure, thus preventing the lower end of the guide rod from entering the guide through hole; a shock-absorbing pad is provided on the lower surface of the guide through hole. Figure 4 As in 3), the upper surface of the T-shaped structure does not directly contact the lower surface of the guide hole when the guide rod moves upward.

[0061] like Figure 4 As shown, in some embodiments of this application, the magnet ( Figure 4 7) is fitted onto the outside of the guide hole.

[0062] This application provides a guiding mechanism at the center of the electromagnetic lifting device: countersunk holes are provided at both ends of the central hole of the electromagnetic lifting device housing, and corresponding limiting pads are installed therein. Figure 4 5) and guide bearings ( Figure 4 4), guide rod ( Figure 4 2) Passing through the entire center hole and guide bearing ( Figure 4 (4) etc., its lower end is connected to the telescopic rod ( Figure 4 1) Rigidly bound, thus connecting with the telescopic rod ( Figure 4 1) Synchronize actions and achieve precise guidance in the Z direction.

[0063] Guide rod ( Figure 4 Shock-absorbing pads are provided on the inner sides of both the top and bottom ends of part 2). Figure 4 (3) A rigid retaining ring is provided on the outermost part of the upper end. Figure 4 (8) A shoulder structure is provided below the lower shock-absorbing pad to prevent it from colliding with the telescopic rod. Figure 4 1) When the electromagnetic coil moves to its limit position in the dispensing direction, it generates an excessive impact, thereby avoiding the vibration of the connecting base and the resulting poor dispensing effect or even failure.

[0064] Under the action of the guiding mechanism, the telescopic rod of the electromagnetic lifting equipment ( Figure 4 1) The dispensing valve is carried by a connecting base and precisely reciprocates in the Z-axis under the action of electromagnetic force. The electromagnetic coil ( Figure 4 6) When the power is applied in the positive direction, the telescopic rod ( Figure 4 1) Synchronously generating positive (or negative) Z-axis motion, which correspondingly drives the dispensing valve to move synchronously. The reverse is also true. Therefore, under the action of the external control board, through the control of the electromagnetic coil ( Figure 4 6) By switching the positive and negative terminals of the power supply at high frequency, the dispensing valve can achieve high-frequency and precise reciprocating motion in the Z direction.

[0065] Based on the dispensing mechanism configured with a displacement camera and an optical rangefinder, in some embodiments, before the host computer sends the height travel information to the dispensing controller, such as Figure 5 As shown, the dispensing method further includes:

[0066] S105, the displacement camera uses optical positioning to sequentially determine the positions where glue needs to be applied to the two-dimensional planar motion device, and sends the position of each glued component to the host computer.

[0067] S106. The host computer controls the optical rangefinder to move the measuring points sequentially to the required dispensing positions of each of the dispensing devices.

[0068] S107. After the optical rangefinder measuring point moves to the dispensing position of each of the dispensing devices, the optical rangefinder measures the height of the dispensing position of the dispensing device.

[0069] S108, the optical rangefinder sends the height of the dispensing position of each dispensing device to the host computer;

[0070] S109. The host computer generates the height travel information of the electromagnetic lifting device based on the dispensing position and the height of the dispensing position for each of the dispensing devices.

[0071] Specifically, see Figure 1 The two-dimensional planar motion device 15 performs planar operation, which can realize that the glue outlet 131 or the displacement camera 16 is aligned with different positions of the two-dimensional planar motion device 15; further, the position of the glued device to be glued is determined sequentially by optical positioning and shooting by the displacement camera 16, and the measurement data is transmitted to the host computer 17 through the first wired communication cable 171; further, the measurement point of the optical rangefinder 18 is moved to the position of the glued device 2 to be glued, and the measurement data is transmitted to the host computer 17 through the second wired communication cable 172, completing the function of online measurement of glue dot height; further, the host computer 17 sends the height stroke change command to the drive control circuit of the electromagnetic lifting device 12 according to the software algorithm, and further, the drive control circuit transmits the drive signal to the electromagnetic cylinder 122, further, the coil inside the electromagnetic cylinder 122 has current flowing through it, the iron core in the middle generates electromagnetic force and undergoes response displacement, further, the glue dispensing valve body 13 is displaced accordingly because it is connected to the electromagnetic cylinder 122 through the base, and further, the closed-loop control process of real-time adjustment of glue dispensing height is completed.

[0072] The dispensing method provided in this application for the above-mentioned dispensing mechanism monitors the dispensing height online, and the height stroke of the electromagnetic lifting device with high-frequency response can be controlled in real time through the monitoring data via the host computer and drive control circuit, thereby changing the dispensing valve body's outlet height and achieving precise control of the amount of glue.

[0073] In the description of this specification, the references to terms such as "an embodiment," "a specific embodiment," "some embodiments," "for example," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A dispensing method for a dispensing mechanism, characterized in that, The dispensing mechanism includes a frame, an electromagnetic lifting device mounted on the frame, and a dispensing valve body connected to the electromagnetic lifting device. A dispensing controller is also mounted on the frame. The dispensing valve body and the electromagnetic lifting device are electrically connected to the dispensing controller, which is also connected to a host computer. The frame includes a base, a vertical support column connected to the base, and a horizontal mounting frame connected to the support column. The horizontal mounting frame is located above the base. The dispensing controller is mounted on the base, and the electromagnetic lifting device is vertically mounted on the horizontal mounting frame. The base is provided with… A two-dimensional planar motion device is provided, on which a dispensing device is mounted; the electromagnetic lifting device includes a housing mounted on a horizontal mounting frame, an electromagnetic cylinder mounted inside the housing, and a telescopic rod connected to the electromagnetic cylinder, one end of the telescopic rod being located inside the electromagnetic cylinder and the other end extending out of the electromagnetic cylinder; a dispensing valve body is connected to the end of the telescopic rod extending out of the electromagnetic cylinder; a magnet is provided inside the electromagnetic cylinder, and an electromagnetic coil is provided on the telescopic rod; when the electromagnetic coil is energized, it generates an electromagnetic force that interacts with the magnet, thereby driving the telescopic rod to extend and retract; A support seat mounted on the housing is provided directly in front of the end of the telescopic rod that extends out of the electromagnetic cylinder. A pre-tightening adjustment rod threadedly connected to the support seat is mounted on the support seat. One end of the pre-tightening adjustment rod extends out of the support seat near the telescopic rod, and the other end extends out of the support seat away from the telescopic rod. A spring is also provided between the pre-tightening adjustment rod and the telescopic rod. One end of the spring is sleeved on the end of the telescopic rod that extends out of the electromagnetic cylinder, and the other end of the spring is sleeved on the end of the pre-tightening adjustment rod that is near the telescopic rod. The spring is engaged with the end of the telescopic rod that extends out of the electromagnetic cylinder. The first stop is set at one end of the telescopic rod, and the second stop is set at one end of the pre-tightening adjustment rod near the telescopic rod. The dispensing valve body is connected to the telescopic rod through a T-shaped connecting base. The horizontal part of the T-shaped connecting base is attached to the side of the dispensing valve body and fixedly connected to the dispensing valve body. The vertical part is perpendicular to the telescopic rod and connected to the first stop set on the telescopic rod. A guide hole is opened in the center of the electromagnetic cylinder. The magnet is sleeved on the outside of the guide hole. The telescopic rod is sleeved on the magnet. The guide rod passes through the entire guide hole. The bottom of the guide rod is fixedly connected to the telescopic rod. The dispensing method includes: The host computer sends the height travel information to the dispensing controller; The dispensing controller forwards the height travel information to the electromagnetic lifting device; The electromagnetic lifting device drives the dispensing valve body to move up and down according to the height travel information, wherein the lifting frequency of the electromagnetic lifting device is 60 Hz to 100 Hz; The dispensing valve body completes one dispensing operation with each lifting and lowering movement.

2. The dispensing method according to claim 1, characterized in that, The lifting frequency of the electromagnetic lifting device is 60Hz to 80Hz.

3. The dispensing method according to claim 1, characterized in that, The horizontal mounting bracket is also equipped with a displacement camera for determining the position where the dispensing device needs to be dispensed. The displacement camera is connected to the host computer via a first wired communication cable, and the host computer is connected to the dispensing controller via a second wired communication cable. The horizontal mounting bracket is also equipped with an optical rangefinder for moving to the dispensing position of the device to be dispensed and measuring the height of the dispensing position. The optical rangefinder is connected to the host computer via a third wired communication cable.

4. The dispensing method according to claim 3, characterized in that, Before the host computer sends the height travel information to the dispensing controller, the method further includes: The displacement camera uses optical positioning to sequentially determine the positions where glue needs to be applied to the components on the two-dimensional planar motion device, and sends the position of each glued component to the host computer. The host computer controls the optical rangefinder to move the measuring points sequentially to the dispensing positions of each of the dispensing devices; After the optical rangefinder measuring point moves to the dispensing position of each of the dispensing devices, the optical rangefinder measures the height of the dispensing position of the device. The optical rangefinder sends the height of the dispensing location for each dispensing device to the host computer. The host computer generates the height travel information of the electromagnetic lifting device based on the dispensing position and the height of each dispensing position of the device to be dispensed.

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