Dispensing machine

Abstract

The utility model provides a dispensing machine. The dispensing machine comprises a rack, a lamp strip conveying mechanism, a dispensing mechanism, an image acquisition unit and a control unit, the rack comprises a machine table and a cross beam which are fixedly connected with each other, and the lamp strip conveying mechanism drives a lamp strip arranged on the lamp strip conveying mechanism to move in the X-axis direction; the dispensing mechanism comprises a dispensing valve, a Y-axis movement unit and a Z-axis movement unit; the Y-axis movement unit is in sliding connection with the cross beam and is used for adjusting the dispensing position of the dispensing valve; and the Z-axis movement unit drives a dispensing valve fixedly arranged on the Z-axis movement unit, opens a glue port to discharge glue when the dispensing valve is close to the lamp strip, and closes the glue port when the dispensing valve is far away from the lamp strip. Thus, the dispensing valve is arranged to move only in the Y-axis direction and the Z-axis direction, the lamp strip conveying mechanism drives the lamp strip to move in the X-axis direction, three-axis movement of the dispensing valve relative to the lamp strip is achieved, the comprehensive position compensation requirement of the dispensing valve is met, the number of stages of movement control of the dispensing valve is reduced, shaking is effectively reduced, and the service life of the dispensing valve is prolonged. And the dispensing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of glue dispensing technology, and in particular to a glue dispensing machine. Background Art

[0002] In the related art, in order to coat the corresponding packaging material on the light-emitting unit of the COB light strip, a dispensing device is usually used to perform the dispensing operation, and the image of the light strip is collected by the image acquisition unit, and the position of the dispensing valve is adjusted based on the image of the light strip to ensure the accuracy of the dispensing. Considering the adaptability, the dispensing valve mostly adopts a three-axis moving dispensing valve, that is, the dispensing valve will move in the three directions of XYZ to adapt to the offset of the area to be dispensed on the light strip, and the driving units in each direction are connected to each other in a cascade manner, which will cause the driving unit at the rear end of the cascade to have poor stability, and will shake during the movement, so that it cannot move quickly to the designated position for dispensing, which leads to low dispensing efficiency.

[0003] Therefore, how to improve dispensing efficiency is an urgent problem to be solved. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the related art, the purpose of the present application is to provide a dispensing machine, aiming to solve the problem of low efficiency of position adjustment of the dispensing valve in the related art.

[0005] In order to solve the above problems, the present application provides a glue dispensing machine, including a frame, a light strip transmission mechanism, a glue dispensing mechanism, an image acquisition unit and a control unit;

[0006] The frame includes a platform and a crossbeam that are fixedly connected to each other, and the crossbeam is located above the platform;

[0007] The light strip transmission mechanism is fixedly arranged on the bearing surface of the machine platform and is located below the crossbeam, and the light strip transmission mechanism drives the light strip placed thereon to move along the X-axis direction;

[0008] The dispensing mechanism includes a dispensing valve, a Y-axis motion unit and a Z-axis motion unit; the Y-axis motion unit is slidably connected to the crossbeam, and based on the image of the light strip captured by the image acquisition unit, moves along the Y-axis direction where the crossbeam is located under the control of the control unit to adjust the dispensing position of the dispensing valve; the Z-axis motion unit is arranged on the Y-axis motion unit, and the Z-axis motion unit drives the dispensing valve fixed thereon to move along the Z-axis direction, and opens the glue outlet to discharge glue when the dispensing valve approaches the light strip, and closes the glue outlet when the dispensing valve is away from the light strip.

[0009] Optionally, the Y-axis motion unit includes a first sliding block, a first sliding rail extending along the Y-axis direction is fixedly arranged on the crossbeam, and the first sliding block is slidably connected to the first sliding rail.

[0010] Optionally, the Y-axis motion unit further includes a second slide rail arranged along the Z-axis direction, the second slide rail is fixedly connected to the first slider, and the Z-axis motion unit includes a second slider, and the second slider is slidably connected to the second slide rail.

[0011] Optionally, the crossbeam is fixedly connected to the machine platform via columns disposed on both sides of the light strip conveying mechanism in the length direction.

[0012] Optionally, the light strip conveying mechanism includes a carrier plate and an X-axis motion unit, the carrier plate is used to place the light strip, and the X-axis motion unit is used to control the carrier plate so that the carrier plate moves along the X-axis direction relative to the machine.

[0013] Optionally, the light strip transmission mechanism further includes a pressing plate, which cooperates with the carrier plate to clamp and fix the light strip, and the carrier plate drives the light strip to move along the X-axis direction to perform glue dispensing operations.

[0014] Optionally, it also includes an assembly clamp, which is fixedly connected to the machine platform; when the pressure plate and the carrier plate release the light strip, the assembly clamp clamps the light strip; when the pressure plate and the carrier plate clamp the light strip, the assembly clamp releases the light strip.

[0015] Optionally, it further includes limit blocks, which are arranged on both sides of the carrier plate in the length direction.

[0016] Optionally, when the light strip conveying mechanism drives the light strip to perform stepping motion, the dispensing valve performs reciprocating motion along the height direction driven by the Z-axis motion unit, and when the light strip stops, the dispensing valve is closest to the light strip and performs the dispensing operation.

[0017] Optionally, the light strip conveying mechanism includes at least two groups arranged in parallel, and the crossbeam spans across all the light strip conveying mechanisms and is located above the light strip conveying mechanisms.

[0018] The present application provides a glue dispensing machine, comprising a frame, a light strip transmission mechanism, a glue dispensing mechanism, an image acquisition unit and a control unit; the frame comprises a platform and a beam fixedly connected to each other, and the beam is located above the platform; the light strip transmission mechanism is fixedly arranged on the bearing surface of the platform and is located below the beam, and the light strip transmission mechanism drives the light strip placed thereon to move along the X-axis direction; the glue dispensing mechanism comprises a glue dispensing valve, a Y-axis motion unit and a Z-axis motion unit; the Y-axis motion unit is slidably connected to the beam, and based on the image of the light strip captured by the image acquisition unit, moves along the Y-axis direction where the beam is located under the control of the control unit to adjust the glue dispensing position of the glue dispensing valve; the Z-axis motion unit is arranged on the Y-axis motion unit, and the Z-axis motion unit drives the glue dispensing valve fixed thereon to move along the Z-axis direction, and opens the glue outlet to discharge glue when the glue dispensing valve approaches the light strip, and closes the glue outlet when the glue dispensing valve is away from the light strip. Therefore, by setting the dispensing valve to move only in the Y-axis and Z-axis directions, and combining the light strip transmission mechanism itself to drive the light strip to move in the X-axis, the three-axis movement of the dispensing valve relative to the light strip is realized, which meets the comprehensive position compensation requirements of the dispensing valve and reduces the number of levels of motion control of the dispensing valve, thereby effectively reducing jitter and improving dispensing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the glue dispensing machine provided for the embodiment of the present application is shown in FIG.

[0020] Figure 2 A schematic diagram of the dispensing mechanism structure provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of the light strip transmission mechanism provided in an embodiment of the present application;

[0022] Description of reference numerals:

[0023] 10-frame; 20-light strip transmission mechanism; 30-glue dispensing mechanism; 40-assembly slot; 11-machine table; 12-crossbeam; 13-column; 21-carrier plate; 22-X-axis motion unit; 23-pressing plate; 24-assembly clamp; 25-limiting block; 31-glue dispensing valve; 321-first slide rail; 322-first slider; 331-second slide rail; 332-second slider. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] In the related art, in order to coat the corresponding packaging material on the light-emitting unit of the COB light strip, a dispensing device is usually used to perform the dispensing operation. The light strip is placed on the conveying mechanism on the dispensing machine, and the light strip is allowed to move on the conveying mechanism. The dispensing valve located above it performs the dispensing operation on the corresponding position on the light strip to achieve dispensing. In this process, based on the matching tolerance between the light strip and the conveying mechanism, the design tolerance of the light strip itself, and the jitter and bumps during operation, the area to be dispensed on the light strip will not match the expected one. Therefore, an image acquisition unit is usually used to capture the actual position of the area to be dispensed on the light strip, and the position of the dispensing valve is compensated based on the image captured by the image acquisition unit. Since the actual offset position of the light strip is uncertain, in order to take into account the offset of the light strip, the dispensing valve mostly uses a three-axis moving dispensing valve, that is, the dispensing valve will move in the three directions of XYZ to adapt to the offset of the area to be dispensed on the light strip. The motion units in three directions corresponding to the three-axis motion of the dispensing valve are realized through cascading. The motion unit at the end of the cascade will jitter during the movement due to too many cascades. This will cause the dispensing valve to be difficult to quickly compensate to the specified position during the dispensing operation, resulting in low dispensing efficiency.

[0027] Based on this, the present application hopes to provide a solution that can solve the above-mentioned technical problems, the details of which will be described in the subsequent embodiments.

[0028] This application embodiment provides a dispensing machine, please refer to Figure 1-3 The glue dispensing machine includes a frame 10, a light strip transmission mechanism 20, a glue dispensing mechanism 30, an image acquisition unit and a control unit;

[0029] The frame 10 includes a platform 11 and a crossbeam 12 which are fixedly connected to each other, and the crossbeam 12 is located above the platform 11;

[0030] The light strip conveying mechanism 20 is fixedly disposed on the bearing surface of the machine platform 11 and is located below the crossbeam 12, and the light strip conveying mechanism 20 drives the light strip placed thereon to move along the X-axis direction;

[0031] The glue dispensing mechanism 30 includes a glue dispensing valve 31, a Y-axis motion unit and a Z-axis motion unit; the Y-axis motion unit is slidably connected to the crossbeam 12, and based on the image of the light strip captured by the image acquisition unit, moves along the Y-axis direction of the crossbeam 12 under the control of the control unit to adjust the glue dispensing position of the glue dispensing valve 31; the Z-axis motion unit is arranged on the Y-axis motion unit, and the Z-axis motion unit drives the glue dispensing valve 31 fixed thereon to move along the Z-axis direction, and opens the glue outlet to discharge glue when the glue dispensing valve 31 is close to the light strip, and closes the glue outlet when the glue dispensing valve 31 is away from the light strip.

[0032] The glue dispensing machine in the embodiment of the present application is used for the glue dispensing operation of COB light strips, wherein the specific types of COB light strips include but are not limited to linear light strips, dot-break light strips, CSP light strips, and the like. Specifically, a linear light strip refers to a light strip in which the fluorescent glue covering each light-emitting chip is connected as a whole. Under the premise of sufficient output power, the light emitted by the linear light strip will appear as a continuous line. A dot-break light strip refers to a light strip in which the fluorescent glue on the light strip is discretely distributed, and each light-emitting chip may correspond to an independent fluorescent glue, or multiple adjacent chips may be coated with the same fluorescent glue. The shape presented by this light strip is a light string formed by multiple point light sources. A CSP light strip refers to a light strip in which the light-emitting chip is a CSP chip pre-encapsulated with fluorescent glue. The characteristic of the CSP chip is that it does not have a bracket and has been subjected to light mixing treatment with fluorescent glue. Therefore, the glue dispensed by the glue dispensing machine may be a packaging glue including transparent glue, but not limited to fluorescent glue.

[0033] Among the components of the dispensing machine, its light strip conveying mechanism 20 is installed on the bearing surface of the machine 11, and is used to carry and convey the light strip. Specifically, the light strip conveying mechanism 20 may include a carrier 21 and an X-axis motion unit 22 for driving the carrier 21. The carrier 21 is used to place the light strip, and the X-axis motion unit 22 is used to control the carrier 21 so that the carrier 21 moves relative to the machine 11 along the X-axis direction. The carrier 21 can move relative to the machine 11 under the control of the X-axis motion unit 22, and the direction of movement is along the length direction of the carrier 21. The movement mode includes but is not limited to unidirectional movement and reciprocating movement. Through the movement of the carrier 21, the movement of the light strip placed on the carrier 21 can be synchronously driven, that is, the movement of the light strip is directly corresponding to the carrier 21. The X-axis direction referred to in the embodiment of the present application is along the length direction of the light strip, which is also the feeding direction of the light strip; the Y-axis direction refers to the width direction of the light strip; and the Z-axis direction refers to the height direction.

[0034] In order to achieve glue dispensing, a glue dispensing mechanism 30 is provided in the embodiment of the present application. The glue dispensing mechanism 30 includes a glue dispensing valve 31 for glue dispensing, and a Y-axis motion unit and a Z-axis motion unit for controlling the movement of the glue dispensing valve 31 according to the corresponding functional structure. The glue dispensing valve 31 is indirectly connected to the frame 10 through the Y-axis motion unit and the Z-axis motion unit, so that the glue dispensing mechanism 30 can further achieve a displacement corresponding to the carrier board 21 above the carrier board 21 under the control of the corresponding motion unit to match the glue dispensing operation of the light strip placed on the carrier board 21.

[0035] The Y-axis motion unit used to control the movement of the dispensing valve 31 in the Y-axis direction is slidably connected to the crossbeam 12 and can move along the extension direction of the crossbeam 12. In the embodiment of the present application, the machine 11 of the frame 10 is fixedly connected to the crossbeam 12, so the position of the crossbeam 12 is very stable. The Y-axis motion unit is the first stage in the cascade structure that drives the dispensing valve 31 to move. Its connection on the crossbeam 12 is very stable and will not cause any jitter. During the operation of the equipment, the Y-axis motion unit can reach the specified position in the shortest time to maximize the dispensing efficiency. Moreover, the Y-axis motion unit is mainly used for the position compensation of the light strip during dispensing. Therefore, the movement range of the Y-axis motion unit is very slight most of the time, and its influence on other motion units is also very small, which can almost be considered as having no influence. For the compensation of the light strip position, generally, the image of the light strip is collected by the image acquisition unit to determine the specific position of the part to be dispensed, and then the control unit controls the Y-axis motion unit to perform corresponding movement, so that the dispensing valve 31 matches the part to be dispensed to avoid dislocation of dispensing.

[0036] The Z-axis motion unit used to control the movement of the dispensing valve 31 in the Z-axis direction is slidably connected to the Y-axis motion unit, that is, it can move in the up and down directions along the track provided by the Y-axis motion unit. The Z-axis motion unit is the second level in the cascade structure that drives the movement of the dispensing valve 31. Its upper structure is connected to the beam 12, and the movement range of the Y-axis motion unit itself is very small, which has almost no effect on the Z-axis motion unit. Therefore, the movement reliability of the Z-axis motion unit during the dispensing process is very high, and it can also reach the specified position in a very short time according to the needs, thereby greatly improving the dispensing efficiency. The displacement of the dispensing valve 31 controlled by the Z-axis motion unit specifically controls the dispensing operation of the dispensing valve 31. When the dispensing valve 31 is close to the light strip, the glue port is opened for dispensing operation. When it is far away from the light strip, the glue port is closed and no glue is discharged. In this way, the amount of glue can be effectively controlled, and the problem of large deviation of the glue drop position caused by suspended dispensing can be avoided.

[0037] In some alternative embodiments, please refer to Figure 2In order to realize the movement of the Y-axis motion unit in the Y-axis direction, the Y-axis motion unit includes a first slider 322. A first slide rail 321 extending in the Y-axis direction is fixedly provided on the crossbeam 12. The first slider 322 is slidably connected to the first slide rail 321. The first slider 322 can slide on the track provided by the first slide rail 321, thereby realizing the movement in the Y-axis direction, and further can drive the displacement of the dispensing valve 31 in the corresponding direction.

[0038] In some optional embodiments, please continue to refer to Figure 2 In order to realize the movement of the Z-axis motion unit in the Z-axis direction, the Y-axis motion unit may further include a second slide rail 331 arranged along the Z-axis direction, the second slide rail 331 is fixedly connected to the first slider 322, and the Z-axis motion unit includes a second slider 332, which is slidably connected to the second slide rail 331. The Z-axis motion unit is cascaded on the Y-axis motion unit. The first slider 322 in the Y-axis motion unit cooperates with the first slide rail 321 to realize the sliding connection in the Y-axis direction, and the Y-axis motion unit itself also includes a second slide rail 331 extending in the Z-axis direction, the second slide rail 331 is fixedly connected to the first slider 322, indicating that the second slide rail 331 can move accordingly with the lateral sliding of the first slider 322; the Z-axis motion unit includes a second slider 332, the second slider 332 is slidably connected to the second slide rail 331, and the second slider 332 can also move accordingly in the Z-axis direction, driving the dispensing valve 31 fixed thereon to also move accordingly.

[0039] In some optional embodiments, please continue to refer to Figure 2 In order to further improve the stability of the beam 12, the beam 12 is fixedly connected to the machine 11 through columns 13 arranged on both sides of the length direction of the light strip conveying mechanism 20, so that the beam 12 forms a gantry structure, which improves the stability of the beam 12.

[0040] In the embodiment of the present application, the dispensing valve 31 is controlled in two directions, namely, the Y-axis direction and the Z-axis direction. The movement in the X-axis direction is the movement of the multiplexed light strip in the X-axis direction to correspond to the movement of the dispensing valve 31. In this way, for the dispensing valve 31, the movement of the dispensing valve 31 is still a three-axis movement relative to the light strip, thereby meeting the position compensation requirements after the light strip is offset and ensuring the reliability of the dispensing process. Moreover, since the dispensing valve 31 itself only has Y-axis and Z-axis movements, the number of mechanisms in the dispensing machine is further reduced, and the difficulty of circuit design is reduced, thereby reducing the equipment cost.

[0041] In some optional embodiments, in order to improve the degree of freedom of operation between devices and reduce the motion interference between devices, an assembly groove 40 may also be included. The assembly groove 40 is located on the discharge side of the carrier 21, extends along the length direction of the carrier 21, and is fixedly connected to the machine 11; the assembly groove 40 has a sunken receiving groove, and the corresponding light strip can extend downward when it is located within the range of the receiving groove. The assembly groove 40 has a receiving groove extending downward along the discharge side of the carrier 21, so that the light strip extending from the discharge side of the carrier 21 will move downward along the assembly groove 40, that is, the assembly groove 40 is equivalent to providing a receiving space below for the light strip. In this way, when the light strip needs to enter subsequent equipment, such as a drying equipment for drying packaging glue, if there is a difference in the operating speeds of the two, the light strip can be placed in the assembly slot 40 to reduce interference with the subsequent equipment; if the operating speed of the subsequent equipment is higher than that of the glue dispenser, the light strip can be suspended above the assembly slot 40 when it extends from the discharge side; if the operating speed of the subsequent equipment is lower than that of the glue dispenser, the light strip can be placed downward on the assembly slot 40 when it extends from the discharge side.

[0042] In some alternative embodiments, please refer to Figure 3 In order to make the position between the carrier plate 21 and the light strip relatively fixed, a corresponding clamp can be fixed on the carrier plate 21, and the clamp can clamp and fix the light strip during the dispensing operation, so that there will be no relative displacement between the light strip and the carrier plate 21, thereby effectively avoiding unexpected movement of the light strip, thereby reducing the need for the dispensing valve 31 to perform compensatory movement based on the offset of the light strip. Specifically, the light strip transmission mechanism 20 can also include a pressing plate 23, which is at least partially located above the carrier plate 21, and the pressing plate 23 cooperates with the carrier plate 21 to clamp and fix the light strip, and the carrier plate 21 drives the light strip to move along the X-axis direction to perform the dispensing operation.

[0043] In some optional embodiments, please continue to refer to Figure 3 In order to avoid the pressing plate 23 blocking the area to be glued on the light strip, the pressing plates 23 are arranged in pairs on both sides of the length direction of the carrier 21; or, the pressing plate 23 is located above the carrier 21 as a whole, and a number of through holes corresponding to the glue dispensing area of ​​the light strip are arranged on the pressing plate 23. The pressing plates 23 are arranged in pairs on both sides of the length direction of the carrier 21, so that the area between the pressing plates 23 can be avoided, so that the glue dispensing valve 31 can perform glue dispensing operations on the light strip normally. If the pressing plate 23 is located above the carrier 21 as a whole, then the position on the pressing plate 23 corresponding to the glue dispensing area of ​​the light strip can be correspondingly set with a through hole, and the glue dispensing valve 31 can dispense glue normally through the through hole.

[0044] In addition to fixing the light strip by clamping with a clamp, the light strip can also be adsorbed by a vacuum suction plate, which can achieve relative fixation between the light strip and the carrier board 21 to a certain extent, and at the same time achieve the leveling operation of the light strip, thereby improving the dispensing accuracy and ensuring the product yield.

[0045] In some optional embodiments, please continue to refer to Figure 3 In order to adapt to the dispensing operation of longer light strips, the light strip conveying mechanism 20 may further include an assembly clamp 24, which is fixedly connected to the machine 11; when the pressing plate 23 and the carrier plate 21 release the light strip, the assembly clamp 24 clamps the light strip; when the pressing plate 23 and the carrier plate 21 clamp the light strip, the assembly clamp 24 releases the light strip. When the pressing plate 23 and the carrier plate 21 release the light strip, it means that the relative position between the light strip and the carrier plate 21 needs to be adjusted. At this time, the light strip can be clamped and fixed by the assembly clamp 24, and then the position of the carrier plate 21 can be adjusted, which is equivalent to shifting the light strip on the carrier plate 21. When the pressing plate 23 and the carrier plate 21 clamp the light strip, it means that the dispensing operation is in progress. At this time, the assembly clamp 24 is opened to avoid control conflicts.

[0046] In some optional embodiments, in order to prevent the light strip from being lateral dislocation, tilt, etc., the light strip may further include limit blocks 25, which are arranged on both sides of the length direction of the carrier plate 21. The limit blocks 25 can be provided to limit the light strip between the limit blocks 25, and the limit blocks 25 can simply limit the light strip in advance, and then clamp the light strip by means including the pressing plate 23. In order to adapt to light strips of different widths and different numbers, the gap between the limit blocks 25 can be adjusted.

[0047] In some optional embodiments, in order to better adapt to the dispensing operation of a long light strip, when the light strip conveying mechanism 20 drives the light strip to do stepping motion, the dispensing valve 31 is driven by the Z-axis motion unit to do reciprocating motion in the height direction, and when the light strip stops, the dispensing valve 31 is closest to the light strip and performs the dispensing operation. The dispensing valve 31 can periodically do reciprocating motion in the Z-axis direction, that is, it moves up and down, and dispenses glue when it is closest to the light strip, and stops dispensing glue when it is away from the light strip, and the carrier plate 21 will do a matching stepping motion with the dispensing valve 31, that is, when the dispensing valve 31 is closest to the light strip, the carrier plate 21 stops moving, and the dispensing valve 31 immediately dispenses glue, and when the dispensing valve 31 moves upward away from the light strip and then downwards close to the light strip again, the carrier plate 21 moves toward the discharge side.

[0048] In some optional embodiments, in order to improve production efficiency, the light strip conveying mechanism may include at least two groups arranged in parallel, and the crossbeam spans all the light strip conveying mechanisms and is located above the light strip conveying mechanisms. In other words, multiple groups of light strip conveying mechanisms may be arranged in parallel, and each group is relatively independent during the conveying process, and the corresponding glue dispensing mechanisms may be arranged through the same crossbeam.

[0049] In some optional embodiments, in order to improve the dispensing efficiency, the dispensing valve 31 includes a multi-point dispensing valve 31, which can be adapted to the dispensing operation of multiple groups of light strips arranged side by side.

[0050] The present application provides a glue dispensing machine, including a frame 10, a light strip transmission mechanism 20, a glue dispensing mechanism 30, an image acquisition unit and a control unit; the frame 10 includes a machine table 11 and a beam 12 fixedly connected to each other, and the beam 12 is located above the machine table 11; the light strip transmission mechanism 20 is fixedly arranged on the bearing surface of the machine table 11 and is located below the beam 12, and the light strip transmission mechanism 20 drives the light strip placed thereon to move along the X-axis direction; the glue dispensing mechanism 30 includes a glue dispensing valve 31, a Y-axis motion unit and a Z-axis motion unit; the Y-axis motion unit is slidably connected to the beam 12, and based on the image of the light strip captured by the image acquisition unit, moves along the Y-axis direction where the beam 12 is located under the control of the control unit to adjust the glue dispensing position of the glue dispensing valve 31; the Z-axis motion unit is arranged on the Y-axis motion unit, and the Z-axis motion unit drives the glue dispensing valve 31 fixedly arranged thereon to move along the Z-axis direction, and opens the glue outlet to discharge glue when the glue dispensing valve 31 is close to the light strip, and closes the glue outlet when the glue dispensing valve 31 is away from the light strip. Therefore, by setting the dispensing valve 31 to move only in the Y-axis and Z-axis directions, combined with the light strip transmission mechanism 20 itself driving the light strip to move in the X-axis, the three-axis movement of the dispensing valve 31 relative to the light strip is realized, which meets the comprehensive position compensation requirements of the dispensing valve 31 and reduces the number of levels of motion control of the dispensing valve 31, thereby effectively reducing jitter and improving dispensing efficiency.

[0051] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A dispensing machine, characterized in that: It includes a frame, a light strip transmission mechanism, a dispensing mechanism, an image acquisition unit and a control unit; The frame includes a platform and a crossbeam that are fixedly connected to each other, and the crossbeam is located above the platform; The light strip transmission mechanism is fixedly arranged on the bearing surface of the machine platform and is located below the crossbeam, and the light strip transmission mechanism drives the light strip placed thereon to move along the X-axis direction; The dispensing mechanism includes a dispensing valve, a Y-axis motion unit and a Z-axis motion unit; the Y-axis motion unit is slidably connected to the crossbeam, and based on the image of the light strip captured by the image acquisition unit, moves along the Y-axis direction where the crossbeam is located under the control of the control unit to adjust the dispensing position of the dispensing valve; the Z-axis motion unit is arranged on the Y-axis motion unit, and the Z-axis motion unit drives the dispensing valve fixed thereon to move along the Z-axis direction, and opens the glue outlet to discharge glue when the dispensing valve approaches the light strip, and closes the glue outlet when the dispensing valve is away from the light strip.

2. The glue dispensing machine according to claim 1, characterized in that: The Y-axis motion unit includes a first sliding block, a first sliding rail extending along the Y-axis direction is fixedly arranged on the crossbeam, and the first sliding block is slidably connected to the first sliding rail.

3. The glue dispensing machine according to claim 2, characterized in that: The Y-axis motion unit further includes a second slide rail arranged along the Z-axis direction, the second slide rail is fixedly connected to the first slider, and the Z-axis motion unit includes a second slider, the second slider is slidably connected to the second slide rail.

4. The dispensing machine according to any one of claims 1 to 3, characterized in that: The crossbeam is fixedly connected to the machine platform through columns arranged on both sides of the light strip conveying mechanism in the length direction.

5. The dispensing machine according to any one of claims 1 to 3, characterized in that: The light strip transmission mechanism includes a carrier plate and an X-axis motion unit, wherein the carrier plate is used to place the light strip, and the X-axis motion unit is used to control the carrier plate so that the carrier plate moves relative to the machine along the X-axis direction.

6. The glue dispensing machine according to claim 5, characterized in that: The light strip transmission mechanism also includes a pressing plate, which cooperates with the carrier plate to clamp and fix the light strip, and the carrier plate drives the light strip to move along the X-axis direction to perform glue dispensing operations.

7. The glue dispensing machine according to claim 6, characterized in that: It also includes an assembly clamp, which is fixedly connected to the machine platform; when the pressure plate and the carrier plate release the light strip, the assembly clamp clamps the light strip; when the pressure plate and the carrier plate clamp the light strip, the assembly clamp releases the light strip.

8. The glue dispensing machine according to claim 5, characterized in that: It also includes limit blocks, which are arranged on both sides of the carrier plate in the length direction.

9. The glue dispensing machine according to any one of claims 1 to 3, characterized in that: When the light strip transmission mechanism drives the light strip to perform stepping motion, the dispensing valve performs reciprocating motion along the height direction driven by the Z-axis motion unit, and when the light strip stops, the dispensing valve is closest to the light strip and performs the dispensing operation.

10. The glue dispensing machine according to any one of claims 1 to 3, characterized in that: The light strip conveying mechanism comprises at least two groups arranged in parallel, and the crossbeam spans across all the light strip conveying mechanisms and is located above the light strip conveying mechanisms.

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