Dispensing machine needle anti-blocking structure

Abstract

The utility model relates to a point gum machine technical field especially relates to a point gum machine needle head prevents the structure of blocking, including drive shell, drive shell inside fixedly connected with micro motor, micro motor output fixedly connected with cylinder shell, cylinder shell inside upper end fixedly connected with first heating element, first heating element lower extreme is provided with second heating element, cylinder shell lower extreme fixedly connected with rotary lock gate, drive shell lower extreme fixedly connected with valve body shell, valve body shell lower extreme is provided with needle head connecting seat, needle head connecting seat inside lower extreme fixedly connected with base, through the design cooperation of cylinder shell and base, make micro motor can drive cylinder shell and carry out rotation, make cylinder shell lower extreme rotary lock gate rotate, the blocking of the clamping groove that base opened is carried out, avoids the glue from the export place to flow out after the point gum, and through the design of positioning guide column, the needle head connecting seat is assembled to staff quickly.

Description

Technical Field

[0001] This utility model relates to the field of dispensing machine technology, and in particular to a dispensing machine needle anti-clogging structure. Background Technology

[0002] A dispensing machine is an automated device that achieves precise dispensing of adhesive. Its core function is to coordinate the motion platform and the adhesive supply module through the control system to apply the adhesive to the target location according to the set path or dosage. It is widely used in fields such as electronic packaging and product assembly.

[0003] The dispensing needle is the core component of the dispensing equipment, directly affecting the accuracy and stability of the glue output. Its material, inner diameter, and shape design must match the glue characteristics and application requirements. It is usually made of materials such as stainless steel and plastic, and the glue flow control is optimized through conical or straight-through structures. When selecting, the glue compatibility, target glue dot shape, and production environment requirements must be comprehensively considered. At the same time, regular maintenance and cleaning should be carried out to avoid blockage or wear, and to ensure the consistency of dispensing quality.

[0004] In existing dispensing machine needles, a pin-type structure is typically used to close the outlet during use. When the pin is driven by a spring to reset and press the outlet, its columnar structure directly squeezes the adhesive retained inside the needle, creating a significant instantaneous pushing force. This force forces the residual adhesive to break through the incompletely closed seal, resulting in delayed dripping. This phenomenon not only causes adhesive to adhere to unexpected locations, compromising the accuracy of the dispensing contour, but also leads to continuous waste of raw materials and contamination of the workpiece surface. Therefore, a dispensing machine needle anti-clogging structure is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-clogging structure for dispensing machine needles.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a dispensing machine needle anti-clogging structure, comprising a drive housing, a micro motor fixedly connected inside the drive housing, a cylindrical housing fixedly connected to the output end of the micro motor, a first heating element fixedly connected to the upper end of the cylindrical housing, a second heating element disposed at the lower end of the first heating element, a rotating gate fixedly connected to the lower end of the cylindrical housing, a positioning guide post A fixedly connected to the lower end of the drive housing, a needle connecting seat disposed at the lower end of the positioning guide post A, a base fixedly connected to the lower end of the needle connecting seat, and a positioning guide post B fixedly connected to the upper end of the base.

[0007] As a further description of the above technical solution: the outer side of the positioning guide post B is attached to the inner side of the cylindrical shell, and the outer side of the rotating gate is attached to the inner wall of the needle connecting seat, so that the micro motor drives the cylindrical shell to rotate, and the rotating gate at the bottom of the shell rotates synchronously to the top of the base slot, so that the rotating gate can block the glue and prevent the glue from falling out from the needle after dispensing and thus contaminating the product.

[0008] As a further description of the above technical solution: the drive housing has a hollow structure inside, and the micro motor is located inside the hollow structure. The lower end of the hollow structure has a circular groove, and the diameter of the circular groove matches the output diameter of the micro motor, so that the micro motor drives the cylindrical housing to rotate through the circular groove in the drive housing.

[0009] As a further description of the above technical solution: a circular groove is provided at the lower end of the cylindrical shell, and the diameter and vertical length of the circular groove are matched with the diameter and vertical length of the positioning guide post B, so that the positioning guide post B can be inserted into the cylindrical shell when the needle connector is assembled, thereby making the rotary gate accurately fit with the base and improving the installation efficiency of the workers.

[0010] As a further description of the above technical solution: the base is provided with symmetrical slots, the shape and size of the slot cross-section are matched with the shape and size of the rotary gate cross-section, the lower end of the rotary gate is attached to the upper end of the base, so that the micro motor drives the cylindrical shell to rotate, thereby driving the rotary gate to rotate, thereby blocking the base.

[0011] As a further description of the above technical solution: a locking tongue is fixedly connected to the outer side of the positioning guide post A, a locking groove is fixedly connected to the inside of the needle connector, a fixing block is fixedly connected to one side of the locking groove, a wedge-shaped locking key is slidably connected to the upper end of the fixing block, a reset pressure ring is fixedly connected to the outer side of the wedge-shaped locking key, and a locking reset spring is fixedly connected to the lower end of the reset pressure ring, so that the locking tongue automatically slides into the locking groove to form an initial positioning and engage, thereby facilitating assembly by the staff.

[0012] As a further description of the above technical solution: a square groove is provided on the outer side of the needle connector, and the wedge-shaped locking key is fixedly connected to the reset pressure ring through the square groove. An annular groove is provided on the outer side of the needle connector, and the reset pressure ring and the locking reset spring are located inside the annular groove. This allows the compressed locking reset spring to release its elastic potential energy after the locking tongue enters the lock groove and completes its initial positioning. This causes the reset pressure ring to drive the wedge-shaped locking key on the inner side to move axially, thereby engaging the locking tongue inside the lock groove and preventing the needle connector from loosening, thus achieving an anti-loosening effect.

[0013] This utility model has the following beneficial effects:

[0014] The anti-clogging structure for the dispensing machine needle designed in this utility model uses a cylindrical shell and a base to coordinate, allowing a micro motor to drive the cylindrical shell to rotate. This causes the rotating gate at the lower end of the cylindrical shell to rotate, blocking the slot in the base and preventing glue from flowing out of the outlet after dispensing. At the same time, the design of the positioning guide post facilitates quick assembly of the needle connector by the operator, ensuring a close fit between the base and the rotating gate, thereby improving the installation efficiency of the device.

[0015] The anti-clogging structure for dispensing machine needles designed in this utility model uses a wedge-shaped locking key and a reset pressure ring to work together. When the locking tongue is embedded in the locking groove and completes the initial positioning, the pre-compressed locking and reset spring immediately releases its elastic potential energy, driving the reset pressure ring to move axially along the annular groove of the needle connecting seat. The reset pressure ring drives the wedge-shaped locking key, which is rigidly connected on the inner side, to move, thereby locking the locking tongue inside the locking groove with the wedge-shaped locking key, forming a geometric interlock. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the latch distribution structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the lock groove structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the distribution structure of the first heating element of this utility model;

[0020] Figure 5 This is a schematic diagram of the longitudinal cross-sectional structure of the cylindrical shell of this utility model;

[0021] Figure 6 This is a schematic diagram of the longitudinal cross-sectional structure of the needle connector of this utility model.

[0022] Legend:

[0023] 1. Drive housing; 2. Micro motor; 3. Cylindrical housing; 4. First heating element; 5. Second heating element; 6. Rotary gate; 7. Positioning guide post A; 8. Needle connector; 9. Base; 10. Positioning guide post B; 11. Locking tongue; 12. Locking groove; 13. Fixing block; 14. Wedge-shaped locking key; 15. Reset pressure ring; 16. Locking reset spring. Detailed Implementation

[0024] Reference Figures 1 to 6This utility model provides a dispensing machine needle anti-clogging structure, including a drive housing 1, a micro motor 2 bolted inside the drive housing 1, a cylindrical housing 3 welded to the output end of the micro motor 2, a first heating element 4 disposed at the upper end inside the cylindrical housing 3, a second heating element 5 disposed at the lower end of the first heating element 4, a rotating gate 6 welded to the lower end of the cylindrical housing 3, a positioning guide post A7 welded to the lower end of the drive housing 1, a needle connecting seat 8 disposed at the lower end of the positioning guide post A7, a base 9 welded to the lower end inside the needle connecting seat 8, and a positioning guide post B10 fixedly connected to the upper end of the base 9.

[0025] As a further implementation of the above technical solution: the outer side of the positioning guide post B10 is attached to the inner side of the cylindrical housing 3, and the outer side of the rotating gate 6 is attached to the inner wall of the needle connecting seat 8, so that the micro motor drives the cylindrical housing to rotate, and the rotating gate at the bottom of the housing rotates synchronously to the top of the base slot, so that the rotating gate can block the glue and prevent the glue from falling out from the needle after dispensing and thus contaminating the product.

[0026] As a further implementation of the above technical solution: the drive housing 1 has a hollow structure inside, and the micro motor 2 is located inside the hollow structure. A circular groove is provided at the lower end of the hollow structure, and the diameter of the circular groove matches the output diameter of the micro motor 2, so that the micro motor 2 drives the cylindrical housing 3 to rotate through the circular groove provided in the drive housing 1.

[0027] As a further implementation of the above technical solution: a circular groove is provided at the lower end of the cylindrical shell 3, and the diameter and vertical length of the circular groove are matched with the diameter and vertical length of the positioning guide post B10, so that the positioning guide post B10 can be inserted into the cylindrical shell 3 when the needle connector 8 is assembled, thereby making the rotary gate 6 accurately fit with the base 9 and improving the installation efficiency of the staff.

[0028] As a further implementation of the above technical solution: the base 9 is provided with symmetrical slots, the shape and size of the slot cross-section are matched with the shape and size of the rotating gate 6 cross-section, the lower end of the rotating gate 6 is attached to the upper end of the base 9, so that the micro motor 2 drives the cylindrical housing 3 to rotate, thereby driving the rotating gate 6 to rotate, thereby blocking the base 9.

[0029] As a further implementation of the above technical solution: a locking tongue 11 is welded to the outside of the positioning guide post A7, a locking groove 12 is welded to the inside of the needle connector 8, a fixing block 13 is welded to one side of the locking groove 12, a wedge-shaped locking key 14 is slidably connected to the upper end of the fixing block 13, a reset pressure ring 15 is welded to the outside of the wedge-shaped locking key 14, and a locking reset spring 16 is welded to the lower end of the reset pressure ring 15, so that the locking tongue automatically slides into the locking groove to form an initial positioning and engage, thereby facilitating assembly by the staff.

[0030] As a further implementation of the above technical solution: a square groove is provided on the outer side of the needle connector 8, and the wedge-shaped locking key 14 is fixedly connected to the reset pressure ring 15 through the square groove. An annular groove is provided on the outer side of the needle connector 8, and the reset pressure ring 15 and the locking reset spring 16 are located inside the annular groove. This allows the compressed locking reset spring to release its elastic potential energy after the locking tongue enters the locking groove and completes its initial positioning. This causes the reset pressure ring to drive the wedge-shaped locking key on the inner side to move axially, and then engage the locking tongue inside the locking groove, preventing the needle connector from loosening and achieving an anti-loosening effect.

[0031] Working principle:

[0032] When using this invention, the adhesive enters through the inlet located at the right end of the positioning guide post A7, and then flows out through the needle connector 8. After dispensing, the output of the micro motor 2 inside the drive housing 1 drives the lower cylindrical housing 3 to rotate. The cylindrical housing 3 drives the lower rotating gate 6 to rotate, causing the rotating gate 6 to block the lower base 9 and isolate it from the outside air, thus keeping the adhesive inside the needle connector 8. At the same time, the first heating element 4 and the second heating element 5 inside the cylindrical housing 3 can heat the adhesive and prevent it from cooling down. During curing, the conical design of the needle connector 8 reduces the possibility of a small amount of glue solidifying rapidly at the outlet. The design of the positioning guide post B10 allows the rotary gate 6 at the lower end of the cylindrical housing 3 to accurately fit with the base 9, facilitating installation by the staff. When the needle needs to be disassembled, pull the reset pressure ring 15 on the surface of the needle connector 8 and compress the locking reset spring 16 to retract the wedge lock key 14 into the fixed block 13. Then rotate the needle connector 8 to disengage the locking tongue 11 from the locking groove 12, thereby disengaging the needle connector 8 from the positioning guide post A7.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dispensing machine needle anti-clogging structure, comprising a drive housing (1), characterized in that... The drive housing (1) is fixedly connected to a micro motor (2), the output end of the micro motor (2) is fixedly connected to a cylindrical housing (3), the upper end of the cylindrical housing (3) is fixedly connected to a first heating element (4), the lower end of the first heating element (4) is provided with a second heating element (5), the lower end of the cylindrical housing (3) is fixedly connected to a rotating gate (6), the lower end of the drive housing (1) is fixedly connected to a positioning guide post A (7), the lower end of the positioning guide post A (7) is provided with a needle connector seat (8), the lower end of the needle connector seat (8) is fixedly connected to a base (9), the upper end of the base (9) is fixedly connected to a positioning guide post B (10).

2. The anti-clogging structure for a dispensing machine needle according to claim 1, characterized in that: The outer side of the positioning guide post B (10) is attached to the inner side of the cylindrical shell (3), and the outer side of the rotating gate (6) is attached to the inner wall of the needle connector (8).

3. The anti-clogging structure for a dispensing machine needle according to claim 1, characterized in that: The drive housing (1) has a hollow structure inside, and the micro motor (2) is located inside the hollow structure. A circular groove is provided at the lower end of the hollow structure, and the diameter of the circular groove matches the diameter of the output end of the micro motor (2).

4. The anti-clogging structure for a dispensing machine needle according to claim 1, characterized in that: The lower end of the cylindrical shell (3) is provided with a circular groove, and the diameter and length of the circular groove are matched with the diameter and length of the positioning guide post B (10).

5. The anti-clogging structure for a dispensing machine needle according to claim 1, characterized in that: The base (9) has symmetrical slots, the shape and size of the slot cross-section are matched with the shape and size of the rotary gate (6) cross-section, and the lower end of the rotary gate (6) is attached to the upper end of the base (9).

6. The anti-clogging structure for a dispensing machine needle according to claim 1, characterized in that: The positioning guide post A (7) is fixedly connected to a locking tongue (11) on the outside. The needle connector (8) is fixedly connected to a locking groove (12) inside. A fixing block (13) is fixedly connected to one side of the locking groove (12). A wedge-shaped locking key (14) is slidably connected to the upper end of the fixing block (13). A reset pressure ring (15) is fixedly connected to the outside of the wedge-shaped locking key (14). A locking reset spring (16) is fixedly connected to the lower end of the reset pressure ring (15).

7. The anti-clogging structure for a dispensing machine needle according to claim 6, characterized in that: The needle connector (8) has a square groove on its outer side, and the wedge-shaped locking key (14) is fixedly connected to the reset pressure ring (15) through the square groove. The needle connector (8) has an annular groove on its outer side, and the reset pressure ring (15) and the locking reset spring (16) are located inside the annular groove.

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