Device and system for automatic needle changing of a glue dispenser

Abstract

This invention discloses a device and system for automatic needle changing in a dispensing machine, belonging to the field of dispensing technology. It includes a needle changing mechanism, a first needle changing module, a second needle changing module, and a third needle changing module. The needle changing mechanism includes a first clamping assembly, a second clamping assembly, and a moving cylinder. The first clamping assembly has a first clamping area for clamping mixing needles, and the second clamping assembly has a second clamping area for clamping custom needles. The moving cylinder is connected to the first clamping assembly and drives the first clamping assembly to move along the X-axis. The third needle changing module is connected to both the moving cylinder and the second clamping assembly. The second needle changing module is connected to the third needle changing module to drive the third needle changing module to move along the Y-axis. The first needle changing module is connected to the second needle changing module. This invention achieves the technical effects of reducing manpower, lowering workload, and improving quality and yield.

Description

Technical Field

[0001] This invention belongs to the field of dispensing technology, and specifically relates to a device and system for automatically changing needles in a dispensing machine. Background Technology

[0002] Dispensing processes are widely used in electronic products such as mobile phones. A dispensing machine is a machine that drips or coats fluid onto the surface or inside of a product during the dispensing process. In the dispensing process, the dispensing needles used for dispensing need to be replaced every once in a while to prevent dispensing defects that may occur due to clogging of the dispensing needles.

[0003] Currently, in dispensing technology, the replacement of dispensing needles is usually done manually. Operators manually remove the needle to be replaced from the dispensing machine, then retrieve the new needle, transport it to the dispensing machine, and manually install it. However, this manual needle replacement process is labor-intensive, involves prolonged contact with the adhesive, is physically demanding, and carries a risk of injury. Relying on the operator's personal experience also increases the risk of errors, and timely replacement is difficult, which is detrimental to improving dispensing quality and yield. In summary, existing dispensing technologies suffer from the following technical problems: high labor consumption, high workload, and relatively low quality and yield. Summary of the Invention

[0004] The technical problem to be solved by this invention is that it requires a lot of manpower, involves high work intensity, and results in low quality and yield.

[0005] To solve the above-mentioned technical problems, the present invention provides a device for automatically changing needles in a dispensing machine. The device includes: a needle changing mechanism, a first needle changing module, a second needle changing module, and a third needle changing module. The needle changing mechanism includes a first clamping assembly, a second clamping assembly, and a moving cylinder. The first clamping assembly has a first clamping area for clamping a mixing needle, and the second clamping assembly has a second clamping area for clamping a custom needle. The moving cylinder is connected to the first clamping assembly and drives the first clamping assembly to move along the X-axis. The three needle-changing modules are respectively connected to the moving cylinder and the second clamping assembly, so as to drive the second clamping assembly to move along the Z-axis direction through the third needle-changing module, and the third needle-changing module drives the moving cylinder to drive the first clamping assembly to move along the Z-axis direction; the second needle-changing module is connected to the third needle-changing module, so as to drive the third needle-changing module to move along the Y-axis direction through the second needle-changing module; the first needle-changing module is connected to the second needle-changing module, so as to drive the second needle-changing module to move along the X-axis direction through the first needle-changing module.

[0006] Furthermore, the needle changing mechanism also includes a support frame, which is slidably connected to the third needle changing module, and the moving cylinder is mounted on the support frame; the first clamping assembly includes a first driver and two first jaws, the first driver is connected to the two first jaws, the first driver is connected to the moving cylinder, the two first jaws are aligned and enclose the first clamping area; the second clamping assembly includes a second driver and two second jaws, the second driver is connected to the two second jaws, the second driver is connected to the support frame, the two second jaws are aligned and enclose the second clamping area; wherein the first jaws are inclined relative to the second jaws.

[0007] Furthermore, the device also includes a storage rack having a first groove for placing the mixing needle and a second groove for placing the custom needle.

[0008] Furthermore, the storage rack also includes an elastic limiting component, which is installed in the first groove and engages with the mixing needle.

[0009] Furthermore, the first groove is inclined relative to the second groove, and the inclination angle of the first groove relative to the second groove is equal to the inclination angle of the first gripper relative to the second gripper.

[0010] Furthermore, the device also includes a worktable, to which the first needle changing module is fixed.

[0011] Furthermore, the device further includes: a support frame, which is mounted on the worktable and provides support for the first needle changing module; the first needle changing module includes a first driving component and a first slider, the first driving component being mounted on the support frame; the first slider is connected to the first driving component to drive the first slider to move along the X-axis direction, and the first slider is connected to the second needle changing module.

[0012] Further, the second needle changing module includes a second driving component and a second slider, the second driving component being connected to the first slider; the second slider is connected to the second driving component to drive the second slider to move along the Y-axis direction, and the second slider is connected to the third needle changing module; the third needle changing module includes a third driving component and a third slider, the third driving component being connected to the second slider; the third slider is connected to the third driving component to drive the third slider to move along the Z-axis direction, and the third slider is connected to the moving cylinder and the second clamping assembly respectively.

[0013] Furthermore, the device further includes: a first dispensing module, a second dispensing module, and a third dispensing module, wherein the first dispensing module is used to drive the stage to move along the X-axis; the third dispensing module is used to drive the glue bucket connected to the mixing needle to move along the Z-axis; the second dispensing module is connected to the third dispensing module, and the second dispensing module is used to drive the third dispensing module to move along the Y-axis.

[0014] According to another aspect of the present invention, the present invention also provides a system for automatically changing needles in a dispensing machine, comprising a mixing needle and a custom needle, and further comprising the aforementioned device for automatically changing needles in a dispensing machine, wherein the mixing needle is clamped in a first clamping area and the custom needle is clamped in a second clamping area.

[0015] Beneficial effects:

[0016] This invention provides an automatic needle-changing device for a dispensing machine. A moving cylinder in the needle-changing mechanism is connected to a first clamping assembly, which drives the first clamping assembly to move along the X-axis. A third needle-changing module is connected to both the moving cylinder and the second clamping assembly, driving the second clamping assembly to move along the Z-axis, and the third needle-changing module also drives the moving cylinder to move the first clamping assembly along the Z-axis. A second needle-changing module is connected to the third needle-changing module, driving it to move along the Y-axis. A first needle-changing module is connected to the second needle-changing module, driving it to move along the X-axis. The first clamping assembly in the needle-changing mechanism can be used to clamp a mixing needle, and the second clamping assembly can be used to clamp a custom needle. In this process, when a dispensing needle needs to be replaced, the first needle-changing module moves the first and second clamping components along the X-axis towards the needle to be replaced in the dispensing machine. The second needle-changing module then moves the first and second clamping components along the Y-axis towards the needle to be replaced. Finally, the third needle-changing module moves the first and second clamping components along the Z-axis towards the needle to be replaced. The first clamping component then picks up the old mixing needle, and the second clamping component removes and recycles the old custom needle. Then, the first clamping component picks up the new mixing needle, and the second clamping component picks up the new custom needle. Through these three modules, the new mixing needle on the first clamping component is moved to the position of the needle to be installed in the dispensing machine, and the new custom needle on the second clamping component is installed below the new mixing needle. This automatic needle replacement reduces manpower, lowers workload, and improves dispensing quality and yield. This achieves the technical effect of reducing the manpower required, lowering the workload, and improving quality and yield. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a device for automatically changing needles in a dispensing machine, provided in an embodiment of the present invention.

[0019] Figure 2 A schematic diagram of the structure of a first needle changing module, a second needle changing module, and a third needle changing module in an automatic needle changing device for a dispensing machine, provided in an embodiment of the present invention. Figure 1 ;

[0020] Figure 3 A schematic diagram of the structure of a first needle changing module, a second needle changing module, and a third needle changing module in an automatic needle changing device for a dispensing machine, provided in an embodiment of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the needle changing mechanism in an automatic needle changing device for a dispensing machine, provided in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the first driving component and the first slider in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the third dispensing module in an automatic needle changing device for a dispensing machine, provided in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the stage in an automatic needle-changing device for a dispensing machine provided in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of a storage rack in an automatic needle changing device for a dispensing machine, provided in an embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the structure of an elastic limiting component in an automatic needle changing device for a dispensing machine, provided in an embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the structure of a mixing needle in an automatic needle-changing device for a dispensing machine, provided in an embodiment of the present invention.

[0028] Figure 11 This is a schematic diagram of the structure of a custom needle in an automatic needle-changing device for a dispensing machine, provided in an embodiment of the present invention.

[0029] The meanings of the labels in the attached diagram are as follows:

[0030] 1—Needle changing mechanism; 11—First clamping assembly; 111—First gripper; 1111—First gripping area; 112—First driver; 12—Second clamping assembly; 121—Second gripper; 1221—Second gripping area; 122—Second driver; 13—Moving cylinder; 14—Supporting frame; 2—First needle changing module; 21—First driving component; 22—First slider; 3—Second needle changing module; 31—Second driving component; 32—Second slider; 4—Third needle changing module; 41—Third driving component; 42—Third slider; 5—Storage rack; 51—First groove; 52—Second groove; 53—Elastic limiting component; 6—Workbench; 7—Support frame; 8—First dispensing module; 80—Plate stage; 81—Second dispensing module; 82—Third dispensing module; 9—Mixing needle; 91—Custom needle; 10—Glue bucket. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art are within the scope of protection of the present invention. The keyword "and / or" involved in this embodiment indicates two situations: and or. In other words, A and / or B mentioned in the embodiments of the present invention indicates two situations: A and B, or A or B. It describes three states of A and B. For example, A and / or B means: only A is included but not B; only B is included but not A; and A and B are included.

[0032] It should be understood that while the terms “first,” “second,” etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or segment from another. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or portion discussed below may be referred to as the second element, component, region, layer, or portion. Spatially related terms, such as “below,” “above,” etc., may be used herein to facilitate the description of the relationship between one element or feature and another element or feature. It is understood that, in addition to the orientations shown in the figures, spatially related terms also include different orientations of the device in use or operation. For example, if the device in the figures is flipped, then an element or feature described as “below” will be oriented to be “above” other elements or features. Therefore, the exemplary term “below” may include both above and below orientations. The device may be oriented (rotated 90 degrees or in other orientations), and the spatially related descriptors used herein are interpreted accordingly.

[0033] In this embodiment of the invention, when a component is described as "fixed to" another component, it can be directly on the other component or an intermediate component may be present. When a component is considered to be "connected to" another component, it can be directly connected to the other component or an intermediate component may be present. When a component is considered to be "set on" another component, it can be directly set on the other component or an intermediate component may be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this embodiment of the invention are for illustrative purposes only and are not intended to limit the invention.

[0034] Example 1

[0035] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , Figure 1 This is a schematic diagram of a device for automatically changing needles in a dispensing machine, provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the first needle changing module 2, the second needle changing module 3, and the third needle changing module 4 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 1 , Figure 3 This is a schematic diagram of the structure of the first needle changing module 2, the second needle changing module 3, and the third needle changing module 4 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 2 , Figure 4 This is a schematic diagram of the needle changing mechanism 1 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the first driving component 21 and the first slider 22 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of the third dispensing module 82 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the stage 80 in an automatic needle-changing device for a dispensing machine provided in an embodiment of the present invention. Figure 8 This is a schematic diagram of the storage rack 5 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 9 This is a schematic diagram of the elastic limiting component 53 in an automatic needle changing device for a dispensing machine provided in an embodiment of the present invention. Figure 10This is a schematic diagram of the mixing needle 9 in an automatic needle-changing device for a dispensing machine provided in an embodiment of the present invention. Figure 11 This is a schematic diagram of the structure of a customized needle 91 in an automatic needle-changing device for a dispensing machine provided in an embodiment of the present invention. Embodiment 1 of the present invention provides an automatic needle-changing device for a dispensing machine, comprising a needle-changing mechanism 1, a first needle-changing module 2, a second needle-changing module 3, and a third needle-changing module 4. The needle-changing mechanism 1, the first needle-changing module 2, the second needle-changing module 3, and the third needle-changing module 4 will now be described in detail below:

[0036] For needle changing mechanism 1:

[0037] The needle changing mechanism 1 includes a first clamping assembly 11, a second clamping assembly 12, and a moving cylinder 13. The first clamping assembly 11 is provided with a first clamping area 1111 for clamping the mixing needle 9; the second clamping assembly 12 is provided with a second clamping area 1221 for clamping the customized needle 91; the moving cylinder 13 is connected to the first clamping assembly 11 and drives the first clamping assembly 11 to move along the X-axis. The needle changing mechanism 1 also includes a support frame 14, which is slidably connected to the third needle changing module 4. A moving cylinder 13 is mounted on the support frame 14. The first clamping assembly 11 includes a first driver 112 and two first grippers 111. The first driver 112 is connected to the two first grippers 111 and to the moving cylinder 13. The two first grippers 111 are aligned with each other and enclose a first gripping area 1111. The second clamping assembly 12 includes a second driver 122 and two second grippers 121. The second driver 122 is connected to the two second grippers 121 and to the support frame 14. The two second grippers 121 are aligned with each other and enclose a second gripping area 1221. The first grippers 111 are inclined relative to the second grippers 121.

[0038] Specifically, in the first clamping assembly 11, the first driver 112 can refer to a cylinder. The two first grippers 111 are parallel to each other, that is, the two first grippers 111 are located in the same plane. A first gripping area 1111 is formed between the two first grippers 111, and the first gripping area 1111 has space to accommodate the mixing needle 9. After the first driver 112 is connected to the two first grippers 111, it can drive the two first grippers 111 to move closer to each other to clamp the mixing needle 9 located in the first gripping area 1111, or it can drive the two first grippers 111 to move further apart to release the mixing needle 9 located in the first gripping area 1111. The first driver 112 in the first clamping assembly 11 can be connected to a moving cylinder 13. The moving cylinder 13 pushes the first driver 112 to move forward or backward. The first driver 112 moving forward or backward will drive the two first grippers 111 to move forward or backward as well. The support frame 14 provides support for the movable cylinder 13, which is mounted on the support frame 14. The contact surface between the support frame 14 and the movable cylinder 13 can be horizontal. A mounting base can be installed between the movable cylinder 13 and the first driver 112. The contact surface between the mounting base and the first driver 112 is inclined, so that the first driver 112 is inclined relative to the horizontal plane. In the second clamping assembly 12, the second driver 122 can refer to a cylinder. The two second jaws 121 are parallel to each other, that is, the two second jaws 121 are located in the same plane. A second gripping area 1221 is formed between the two second jaws 121, and the second gripping area 1221 has space to accommodate the customized needle 91. After the second actuator 122 is connected to the two second grippers 121, the second actuator 122 can drive the two second grippers 121 to move closer together to clamp the custom needle 91 located in the second gripping area 1221, or the second actuator 122 can drive the two second grippers 121 to move away from each other to release the custom needle 91 located in the second gripping area 1221. The second actuator 122 is mounted on the support frame 14, and the contact surface between the support frame 14 and the second actuator 122 can be horizontally placed. In this way, the first actuator 112 is tilted relative to the horizontally placed second actuator 122, so that the first gripper 111 is also tilted relative to the second gripper 121.

[0039] For the first needle changing module 2:

[0040] The first needle-changing module 2 is connected to the second needle-changing module 3, so as to drive the second needle-changing module 3 to move along the X-axis direction. The first needle-changing module 2 includes a first driving component 21 and a first slider 22. The first driving component 21 is mounted on the support frame 7. The first slider 22 is connected to the first driving component 21, so as to drive the first slider 22 to move along the X-axis direction, and the first slider 22 is connected to the second needle-changing module 3. The device for automatic needle changing of a dispensing machine provided in this embodiment of the invention also includes a support frame 7, which is mounted on the worktable 6 and provides support for the first needle-changing module 2. The second needle-changing module 3 is connected to the third needle-changing module 4, so as to drive the third needle-changing module 4 to move along the Y-axis direction. The second needle-changing module 3 includes a second driving component 31 and a second slider 32. The second driving component 31 is connected to the first slider 22. The second slider 32 is connected to the second driving component 31 to drive the second slider 32 to move along the Y-axis direction. The second slider 32 is also connected to the third needle-changing module 4. The third needle-changing module 4 is connected to the moving cylinder 13 and the second clamping assembly 12 to drive the second clamping assembly 12 to move along the Z-axis direction. The third needle-changing module 4 also drives the moving cylinder 13 to move the first clamping assembly 11 along the Z-axis direction. The third needle-changing module 4 includes a third driving component 41 and a third slider 42. The third driving component 41 is connected to the second slider 32. The third slider 42 is connected to the third driving component 41 to drive the third slider 42 to move along the Z-axis direction. The third slider 42 is also connected to the moving cylinder 13 and the second clamping assembly 12.

[0041] Specifically, the first needle-changing module 2 can be mounted on the worktable 6 via the support frame 7. Those skilled in the art will understand that the specific structure of the first driving component 21 in the device for automatic needle changing in a dispensing machine provided in Embodiment 1 of the present invention is not limited. It is sufficient that the first driving component 21 drives the first slider 22 to move along the X-axis. For example, the first driving component 21 may include a housing fixed to the support frame 7, a cylinder fixed to the housing, and a lead screw connected to the cylinder and extending through the housing along its length. The first slider 22 is slidably connected to the lead screw. The lead screw is parallel to the worktable 6, i.e., the lead screw is positioned along the X-axis. The cylinder drives the lead screw to rotate, and the rotating lead screw drives the first slider 22 to move along its length, thus enabling the cylinder to drive the lead screw to move the first slider 22 along the X-axis. After the first slider 22 is connected to the second needle-changing module 3, the first slider 22 moving along the X-axis can also drive the second needle-changing module 3 to move along the X-axis.

[0042] It should be noted that since the second drive component 31 in the second needle changing module 3 has the same structure and principle as the first drive component 21 in the first needle changing module 2, it will not be described again here. After the second slider 32 is connected to the third needle changing module 4, the second slider 32, which moves along the Y-axis, can drive the third needle changing module 4 to move along the Y-axis. Since the third drive component 41 in the third needle changing module 4 has the same structure and principle as the first drive component 21 in the first needle changing module 2, it will not be described again here. The third slider 42 can be connected to the support frame 14, and the third drive component 41 can drive the third slider 42 to move along the Z-axis. The third slider 42, which moves along the Z-axis, can drive the support frame 14 connected to the third slider 42 to move along the Z-axis. Thus, the first slider 22 in the first needle changing module 2 can move the first clamping assembly 11 and the second clamping assembly 12 located on the support frame 14 along the X-axis. The second slider 32 in the second needle changing module 3 can move the first clamping assembly 11 and the second clamping assembly 12 located on the support frame 14 along the Y-axis. The third slider 42 in the third needle changing module 4 can move the first clamping assembly 11 and the second clamping assembly 12 located on the support frame 14 along the Z-axis. This moves the first clamping assembly 11 to the storage rack 5 to clamp the mixing needle 9, and the second clamping assembly 12 to the storage rack 5 to clamp the customized needle 91. Alternatively, the mixing needle 9 clamped on the first clamping assembly 11 can be moved to the position of the needle to be installed in the dispensing machine for installation, and the customized needle 91 clamped on the second clamping assembly 12 can be moved to the position of the needle to be installed in the dispensing machine for installation.

[0043] The device for automatic needle changing in a dispensing machine provided in Embodiment 1 of the present invention may further include a storage rack 5. The storage rack 5 is provided with a first groove 51 for placing a mixing needle 9 and a second groove 52 for placing a custom needle 91. The storage rack 5 may further include an elastic limiting member 53, which is installed in the first groove 51 and engages with the mixing needle 9. The first groove 51 is inclined relative to the second groove 52, and the angle of inclination of the first groove 51 relative to the second groove 52 is equal to the angle of inclination of the first gripper 111 relative to the second gripper 121. The device for automatic needle changing in a dispensing machine provided in Embodiment 1 of the present invention may further include a worktable 6, and the first needle changing module 2 is fixed to the worktable 6.

[0044] Specifically, a storage rack 5 can be installed on the workbench 6. The storage rack 5 has a first groove 51 inside that accommodates a mixing needle 9, and a second groove 52 inside that accommodates a custom needle 91. Both the first groove 51 and the second groove 52 can be through-groove structures. An elastic limiting member 53 can be provided in the first groove 51. The elastic limiting member 53 is used to clamp the mixing needle 9 in the direction of its cross-section. For example, the elastic limiting member 53 can be two elastic U-shaped springs, which are respectively installed on both sides of the inner wall of the first groove 51. After the mixing needle 9 is inserted into the first groove 51, the two U-shaped springs can clamp the mixing needle 9 from both sides. When the first clamping assembly 11 clamps the mixing needle 9 from the part of the mixing needle 9 outside the first groove 51, the first clamping assembly 11 can pull out the mixing needle 9 from the length extension direction of the mixing needle 9. Alternatively, the elastic limiting component 53 can have two balls, each fixed to the inner wall of the first groove 51 by a spring. After the mixing needle 9 is inserted into the first groove 51, the compressed balls will clamp the mixing needle 9 from both sides, securing it in the first groove 51. The opening of the second groove 52 can be a limiting platform matching the custom needle 91. Viewed from a position perpendicular to the opening of the second groove 52, the opening of the second groove 52 can have an extending step along the diameter of the custom needle 91, supporting the protrusion on the right side of the custom needle 91 on the extended step, thus supporting the custom needle 91 in the second groove 52. The angle of inclination of the first groove 51 relative to the second groove 52 refers to... Figure 8 The angle between the length extension direction of the first groove 51 and the length extension direction of the second groove 52 shown in the diagram, and the inclination angle of the first gripper 111 relative to the second gripper 121, refer to... Figure 4 As shown, the angle between the length extension direction of the first gripper 111 and the length extension direction of the second gripper 121 is such that, since the inclination angle of the first groove 51 relative to the second groove 52 is equal to the inclination angle of the first gripper 111 relative to the second gripper 121, when the first gripper 111 moves above the first groove 51 and the second gripper 121 moves above the second groove 52, the first gripper 111 can grip the mixing needle 9, and at the same time the second gripper 121 can grip the custom needle 91.

[0045] The device for automatic needle changing in a dispensing machine provided in this embodiment of the invention further includes a first dispensing module 8, a second dispensing module 81, and a third dispensing module 82. The first dispensing module 8 is used to drive the stage 80 to move along the X-axis direction; the third dispensing module 82 is used to drive the glue tank 10 connected to the mixing needle 9 to move along the Z-axis direction; the second dispensing module 81 is connected to the third dispensing module 82, and the second dispensing module 81 is used to drive the third dispensing module 82 to move along the Y-axis direction.

[0046] Specifically, a first dispensing module 8 can be installed on the worktable 6. The first dispensing module 8 has the same structure and principle as the first needle-changing module 2 mentioned above, and will not be described again here. The second dispensing module 81 has the same structure and principle as the first needle-changing module 2 mentioned above, and will not be described again here. The third dispensing module 82 has the same structure and principle as the first needle-changing module 2 mentioned above, and will not be described again here. In this way, the first dispensing module 8 can drive the object to be dispensed on the stage 80 to move along the X-axis. The second dispensing module 81 is installed on the worktable 6, and can drive the third dispensing module 82 to move along the Y-axis. The third dispensing module 82 can drive the glue tank 10 connected to the mixing needle 9 to move along the Z-axis, so as to move the mixing needle 9 connected to the glue tank 10 and the customized needle 91 connected to the mixing needle 9 to be above the object to be dispensed on the stage 80, and dispense glue onto the object. In actual operation, the first clamping assembly 11 can clamp the mixing needle 9 from the storage rack 5, and the second clamping assembly 12 can clamp the customized needle 91 from the storage rack 5. Then, the first needle changing module 2, the second needle changing module 3, and the third needle changing module 4 move the mixing needle 9 clamped by the first clamping assembly 11 to below the glue tank 10, and push the mixing needle 9 to connect with the glue tank 10. Then, the customized needle 91 clamped by the second clamping assembly 12 is moved to below the mixing needle 9, and pushes the customized needle 91 to connect with the mixing needle 9, so that the glue tank 10, the mixing needle 9, and the customized needle 91 are connected in sequence. The first dispensing module 8 can move the object to be dispensed along the X-axis to the desired position on the stage 80, and then the second dispensing module 81 and the third dispensing module 82 can move the mixing needle 9 and the custom needle 91 connected to the glue tank 10 to the top of the object to be dispensed on the stage 80, so as to dispense glue onto the object.

[0047] This invention provides an automatic needle-changing device for a dispensing machine. A moving cylinder 13 in the needle-changing mechanism 1 is connected to a first clamping assembly 11, driving the first clamping assembly 11 to move along the X-axis. A third needle-changing module 4 is connected to both the moving cylinder 13 and the second clamping assembly 12, driving the second clamping assembly 12 to move along the Z-axis, and also driving the moving cylinder 13 to move the first clamping assembly 11 along the Z-axis. A second needle-changing module 3 is connected to the third needle-changing module 4, driving the third needle-changing module 4 to move along the Y-axis. A first needle-changing module 2 is connected to the second needle-changing module 3, driving the second needle-changing module 3 to move along the X-axis. The first clamping assembly 11 in the needle-changing mechanism 1 can be used to clamp a mixing needle 9, and the second clamping assembly 12 can be used to clamp a custom needle 91. In this process, when the dispensing needle needs to be replaced, the first needle-changing module 2 will drive the first clamping assembly 11 and the second clamping assembly 12 to approach the needle to be replaced in the dispensing machine along the X-axis. The second needle-changing module 3 will drive the first clamping assembly 11 and the second clamping assembly 12 to approach the needle to be replaced along the Y-axis. Then, the third needle-changing module 4 will drive the first clamping assembly 11 and the second clamping assembly 12 to approach the needle to be replaced along the Z-axis. After that, the first clamping assembly 11 will clamp the old mixing needle 9, and the second clamping assembly 12 will clamp the old custom needle 91 and remove it for recycling. Then, the first clamping assembly 11 will clamp the new mixing needle 9, and the second clamping assembly 12 will clamp the new custom needle 91. Through the first needle-changing module 2, the second needle-changing module 3, and the third needle-changing module 4, the new mixing needle 9 located on the first clamping assembly 11 will be moved to the position of the needle to be installed in the dispensing machine for installation, and the new custom needle 91 located on the second clamping assembly 12 will be installed below the new mixing needle 9. This allows for automatic needle replacement, reducing manpower requirements, lowering workload, and improving dispensing quality and yield. Thus, it achieves the technical benefits of reducing manpower, lowering workload, and improving quality and yield.

[0048] To provide a detailed description of the system for automatic needle changing in a dispensing machine provided by the present invention, the above embodiment 1 provides a detailed description of a device for automatic needle changing in a dispensing machine. Based on the same inventive concept, this application also provides a system for automatic needle changing in a dispensing machine, as detailed in embodiment 2.

[0049] Example 2

[0050] Embodiment 2 of the present invention provides a system for automatic needle changing of a dispensing machine, including a mixing needle 9 and a custom needle 91, and also includes a device for automatic needle changing of a dispensing machine, wherein the mixing needle 9 is clamped in a first clamping area 1111 and the custom needle 91 is clamped in a second clamping area 1221.

[0051] This invention provides a system for automatically changing needles in a dispensing machine. A moving cylinder 13 in a needle changing mechanism 1 is connected to a first clamping assembly 11, driving the first clamping assembly 11 to move along the X-axis. A third needle changing module 4 is connected to both the moving cylinder 13 and the second clamping assembly 12, driving the second clamping assembly 12 to move along the Z-axis, and also driving the moving cylinder 13 to move the first clamping assembly 11 along the Z-axis. A second needle changing module 3 is connected to the third needle changing module 4, driving the third needle changing module 4 to move along the Y-axis. A first needle changing module 2 is connected to the second needle changing module 3, driving the second needle changing module 3 to move along the X-axis. The first clamping assembly 11 in the needle changing mechanism 1 can be used to clamp a mixing needle 9, and the second clamping assembly 12 can be used to clamp a custom needle 91. In this process, when the dispensing needle needs to be replaced, the first needle-changing module 2 will drive the first clamping assembly 11 and the second clamping assembly 12 to approach the needle to be replaced in the dispensing machine along the X-axis. The second needle-changing module 3 will drive the first clamping assembly 11 and the second clamping assembly 12 to approach the needle to be replaced along the Y-axis. Then, the third needle-changing module 4 will drive the first clamping assembly 11 and the second clamping assembly 12 to approach the needle to be replaced along the Z-axis. After that, the first clamping assembly 11 will clamp the old mixing needle 9, and the second clamping assembly 12 will clamp the old custom needle 91 and remove it for recycling. Then, the first clamping assembly 11 will clamp the new mixing needle 9, and the second clamping assembly 12 will clamp the new custom needle 91. Through the first needle-changing module 2, the second needle-changing module 3, and the third needle-changing module 4, the new mixing needle 9 located on the first clamping assembly 11 will be moved to the position of the needle to be installed in the dispensing machine for installation, and the new custom needle 91 located on the second clamping assembly 12 will be installed below the new mixing needle 9. This allows for automatic needle replacement, reducing manpower requirements, lowering workload, and improving dispensing quality and yield. Thus, it achieves the technical benefits of reducing manpower, lowering workload, and improving quality and yield.

[0052] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for automatic needle changing of a glue dispenser, characterized in that, The device includes: a needle changing mechanism, a first needle changing module, a second needle changing module, and a third needle changing module. The needle changing mechanism includes a first clamping assembly, a second clamping assembly, and a moving cylinder. The first clamping assembly has a first clamping area for clamping mixing needles, and the second clamping assembly has a second clamping area for clamping customized needles. The moving cylinder is connected to the first clamping assembly and drives the first clamping assembly to move along the X-axis. The third needle changing module is connected to both the moving cylinder and the second clamping assembly, so that the third needle changing module drives the second clamping assembly to move along the Z-axis, and the third needle changing module drives the moving cylinder to move the first clamping assembly along the Z-axis. The second needle changing module is connected to the third needle changing module, so that the second needle changing module drives the third needle changing module to move along the Y-axis. The first needle changing module is connected to the second needle changing module, so that the first needle changing module drives the second needle changing module to move along the X-axis.

2. The device for automatic needle changing of a glue dispenser according to claim 1, characterized in that: The needle changing mechanism further includes a support frame, which is slidably connected to the third needle changing module, and the moving cylinder is mounted on the support frame; the first clamping assembly includes a first driver and two first jaws, the first driver is connected to the two first jaws, the first driver is connected to the moving cylinder, the two first jaws are aligned and enclose the first clamping area; the second clamping assembly includes a second driver and two second jaws, the second driver is connected to the two second jaws, the second driver is connected to the support frame, the two second jaws are aligned and enclose the second clamping area; The first gripper is inclined relative to the second gripper.

3. The device for automatic needle changing in a dispensing machine according to claim 2, characterized in that, The device further includes a storage rack having a first groove for placing the mixing needle and a second groove for placing the custom needle.

4. The device for automatic needle changing of a glue dispenser according to claim 3, characterized in that, The storage rack further includes an elastic limiting component, which is installed in the first groove and engages with the mixing needle.

5. The device for automatic needle changing of a glue dispenser according to claim 3, characterized in that: The first groove is inclined relative to the second groove, and the angle of inclination of the first groove relative to the second groove is equal to the angle of inclination of the first gripper relative to the second gripper.

6. The device for automatic needle changing of a glue dispenser according to claim 1, wherein, The device further includes a worktable, wherein the first needle changing module is fixed to the worktable.

7. The device for automatic needle changing of a glue dispenser according to claim 6, characterized in that, The device further includes: a support frame, which is mounted on the worktable and provides support for the first needle changing module; the first needle changing module includes a first driving component and a first slider, the first driving component being mounted on the support frame; the first slider is connected to the first driving component to drive the first slider to move along the X-axis direction, and the first slider is connected to the second needle changing module.

8. The device for automatically changing needles in a dispensing machine according to claim 7, characterized in that: The second needle changing module includes a second driving component and a second slider. The second driving component is connected to the first slider. The second slider is connected to the second driving component to drive the second slider to move along the Y-axis direction, and the second slider is connected to the third needle changing module. The third needle changing module includes a third driving component and a third slider. The third driving component is connected to the second slider. The third slider is connected to the third driving component to drive the third slider to move along the Z-axis direction, and the third slider is connected to the moving cylinder and the second clamping assembly, respectively.

9. The device for automatic needle changing of a glue dispenser according to claim 1, wherein, The device further includes: a first dispensing module, a second dispensing module, and a third dispensing module. The first dispensing module is used to drive the stage to move along the X-axis direction. The third dispensing module is used to drive the glue bucket connected to the mixing needle to move along the Z-axis direction. The second dispensing module is connected to the third dispensing module, and the second dispensing module is used to drive the third dispensing module to move along the Y-axis direction.

10. A system for automatic needle changing of a glue dispenser, comprising a glue mixing needle and a custom needle, characterized in that, It also includes the apparatus for automatic needle changing of a dispensing machine as described in any one of claims 1 to 9, wherein the mixing needle is clamped in the first clamping area and the custom needle is clamped in the second clamping area.

Images