Dispensing device

Abstract

The utility model relates to the field of dispensing machines, in particular to a dispensing device which comprises a dispensing barrel, a pushing plate is arranged in the dispensing barrel, the peripheral wall of the pushing plate is in sliding connection with the inner wall of the dispensing barrel, the sliding direction is the length direction of the dispensing barrel, the pushing plate is connected with a pushing part, and the pushing part is connected with the dispensing barrel. A mounting seat is connected to the bottom of the pushing plate, a dredging needle is mounted at the bottom of the mounting seat, a dispensing needle tube is connected to the bottom of the dispensing barrel, the central axis of the dredging needle and the central axis of the dispensing needle tube are located on the same straight line, and the dredging needle is connected with a driving part used for driving the dredging needle to ascend and descend. According to the invention, the possibility that the dispensing needle tube is blocked can be reduced, so that the dispensing efficiency of the dispensing machine is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dispensing machines, in particular to a dispensing device. BACKGROUND

[0002] LED packaging process, general steps include: die bonding, thermal curing, wire bonding, dispensing, hot curing molding, dispensing process often uses dispensing machine to dispense glue for LED.

[0003] The dispensing machine is an automatic device for accurately applying glue, adhesive or liquid material at specific locations. It is usually composed of a control system, a motion system and a dispensing system, and can be widely used in industrial production and manufacturing processes. The main function of the dispensing machine is to dispense glue on the surface of the workpiece that needs to be glued, sealed or coated with glue, so as to achieve accurate and consistent glue application effect.

[0004] For the related technology in the above, the inventor finds that the existing full-automatic dispensing machine generally only contains one dispensing needle tube. When in use, the glue is poured into the dispensing needle tube, the dispensing needle tube is moved to the corresponding position, and then the wafer is dispensed. In this process, if the dispensing needle of the dispensing needle tube is blocked, the subsequent wafers cannot be coated, resulting in a decrease in the dispensing efficiency of the dispensing machine. CONTENT OF THE UTILITY MODEL

[0005] In order to reduce the possibility of the dispensing needle tube being blocked, thereby improving the dispensing efficiency of the dispensing machine, the present application provides a dispensing device.

[0006] The dispensing device provided by the present application adopts the following technical scheme:

[0007] A dispensing device, comprising a dispensing barrel, the dispensing barrel, a push plate is arranged in the dispensing barrel, the push plate is in sliding connection with the inner wall of the dispensing barrel in the length direction of the dispensing barrel, the push plate is connected with a pushing piece, the bottom of the push plate is connected with a mounting seat, the bottom of the mounting seat is installed with a dredging needle, the center axis of the dredging needle is on the same straight line as the center axis of the dispensing needle tube, and the dredging needle is connected with a driving piece for driving the dredging needle to ascend and descend.

[0008] By adopting the above technical scheme, when the dispensing needle tube needs to be dredged, the pushing piece is only needed to be turned on to descend, and then the dredging needle is driven to descend by the driving piece to dredge the dispensing needle tube, thereby reducing the possibility of the dispensing needle tube being blocked, and further improving the dispensing efficiency of the dispensing machine.

[0009] Preferably, the driving member includes a driving motor, a rotating cylinder, an extension rod and a mounting seat, the mounting seat is connected to the bottom of the pushing plate and the rotating cylinder is located in the mounting seat, the driving motor is connected to the top of the pushing plate, the rotating cylinder is rotationally connected to the bottom of the pushing plate and the driving motor is transmission-connected to the rotating cylinder, one end of the extension rod is threadedly connected to the inner wall of the rotating cylinder, the other end of the extension rod passes through the bottom of the mounting seat and the extension rod is circumferentially limited, and the top of the dredging needle is connected to the extension rod.

[0010] By adopting the above technical solution, when the dispensing needle tube needs to be unblocked, it is only necessary to first turn on the push member to lower it, and then turn on the drive motor. The drive motor drives the rotating cylinder to rotate. At this time, due to the circumferential limit setting of the extension rod, the unblocking needle descends to unblock the dispensing needle tube, thereby improving the dispensing efficiency of the dispensing machine.

[0011] Preferably, a polygonal hole is provided at the bottom of the mounting seat, and the end of the extension rod away from the rotating cylinder is slidably connected to the polygonal hole, and the sliding direction is the length direction of the dispensing barrel.

[0012] By adopting the above technical solution, the extension rod is slidably connected to the polygonal hole, thereby realizing the circumferential limit setting of the extension rod, which has a simple structure and is easy to purchase.

[0013] Preferably, the dispensing barrel includes a top cover and a barrel body, and the bottom of the top cover is detachably connected to the top of the barrel body.

[0014] By adopting the above technical solution, when cleaning is needed, the staff only needs to disassemble the top cover and the barrel body to clean the barrel body and the dredging needle, thereby keeping the dredging needle and the barrel body clean.

[0015] Preferably, the pushing member includes an electric cylinder, a cylinder body of the electric cylinder is connected to the top of the top cover, and a piston rod of the electric cylinder passes through the top cover and is connected to the pushing plate via a connecting rod.

[0016] By adopting the above technical solution, when dispensing glue, glue is first added into the barrel, and then the electric cylinder is turned on. The electric cylinder drives the push plate to descend, thereby increasing the pressure and further improving the output efficiency of the dispensing device.

[0017] Preferably, a glue adding tube is connected to the top of the top cover, one end of the glue adding tube passes through the top cover and is connected to a bellows, the other end of the glue adding tube is connected to a glue source, the other end of the bellows is connected to a one-way valve, the outlet of the one-way valve is connected to a feeding tube, and the other end of the feeding tube passes through the push plate.

[0018] By adopting the above technical solution, when dispensing glue, it is only necessary to add glue to the glue adding hose through the glue source. At this time, the glue passes through the corrugated tube and is then added to the bottom of the push plate through the feeding tube, thereby realizing the addition of glue.

[0019] Preferably, the glue source comprises a glue bucket and a circulating pump, the glue adding pipe is communicated with a liquid outlet of the circulating pump, and a liquid inlet of the circulating pump is connected with the glue bucket.

[0020] By adopting the technical scheme, when dispensing glue, the circulating pump is started to add glue in the glue bucket to the glue adding pipe, and the structure is simple and convenient to purchase.

[0021] Preferably, the one-way valve comprises a valve body box, an abutting block and an abutting spring, the valve body box is provided with an inlet and an outlet at two ends respectively, one end of the abutting spring is connected with one end of the abutting block, the other end of the abutting spring is connected with an inner wall of one side of the valve body box provided with the outlet, and the other end of the abutting block abuts at the inlet to realize the closure of the inlet.

[0022] By adopting the technical scheme, when dispensing glue, the pushing plate is lowered to press the glue in the bucket body, and the glue pushes the abutting block to close the inlet of the one-way valve during the process, so that the backflow of the glue is avoided to affect the dispensing efficiency.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. When the dispensing needle pipe needs to be dredged, the pushing member is only needed to be lowered first, and then the dredging needle is lowered by the driving member to dredge the dispensing needle pipe, so as to reduce the possibility of the dispensing needle pipe being blocked, and then the dispensing efficiency of the dispensing machine is improved;

[0025] 2. When the dispensing needle pipe needs to be dredged, the pushing member is only needed to be lowered first, and then the driving motor is started, the driving motor drives the rotating cylinder to rotate, at this time, the elongated rod is circumferentially limited, at this time, the dredging needle is lowered to dredge the dispensing needle pipe, so as to improve the dispensing efficiency of the dispensing machine;

[0026] 3. When dispensing, the glue adding pipe is only needed to be added with glue by the glue source, at this time, the glue passes through the corrugated pipe and then is added to the lower side of the pushing plate, so as to realize the addition of the glue. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the dispensing device of the embodiment of the present application.

[0028] Figure 2 is the overall structure schematic diagram of the dispensing device of the embodiment of the present application.

[0029] Figure 3 is Figure 1 the local enlarged schematic diagram of A in FIG.

[0030] Explanation of the accompanying symbols: 1. Glue dispensing barrel; 11. Top cover; 12. Barrel body; 13. Glue dispensing needle tube; 2. Push plate; 21. Clearing needle; 22. Driving motor; 23. Rotating cylinder; 24. Extension rod; 25. Mounting seat; 3. Electric cylinder; 4. Glue feeding hose; 41. Bellows; 42. Feeding pipe; 43. Glue barrel; 44. Circulation pump; 51. Valve body box; 52. Abutment block; 53. Abutment spring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] The embodiment of the present application discloses a dispensing device. Figure 1 、 Figure 2 A dispensing device includes a base plate, a robotic arm, and a dispensing barrel 1. In this embodiment, the dispensing barrel 1 can be clamped by the robotic arm to realize the dispensing of the dispensing device. The dispensing barrel 1 includes a top cover 11 and a barrel body 12. When the dispensing barrel 1 moves, the barrel body 12 remains in a vertical state.

[0034] Reference Figure 2 、 Figure 3 A pushing plate 2 for pushing glue is provided in the dispensing barrel 1. The peripheral wall of the pushing plate 2 is slidably connected to the inner wall of the barrel body 12 and the sliding direction is vertical. The pushing plate 2 is connected to a pushing member, which includes an electric cylinder 3. The cylinder body of the electric cylinder 3 is connected to the top of the top cover 11 by bolts. The piston rod of the electric cylinder 3 passes through the top cover 11 and is connected to two connecting rods. The connecting rods are bent and symmetrical with the central axis of the pushing plate 2 as the symmetry line. The other ends of the two connecting rods are connected to the top of the pushing plate 2 by bolts.

[0035] The top cover 11 is connected with a glue adding pipe 4, one end of the glue adding pipe 4 is connected with a glue source, the glue adding pipe 4 is in a bent shape, the glue source comprises a glue bucket 43 and a circulating pump 44, one end of the glue adding pipe 4 is communicated with the liquid outlet of the circulating pump 44 through a hose, the corrosion-resistant hose can avoid interfering with the moving dispensing of the dispensing bucket 1, the liquid inlet of the circulating pump 44 is communicated with the glue bucket 43 through a pipe, and the other end of the glue adding pipe 4 penetrates through the top cover 11 into the bucket body 12 and is connected with a bellows 41, the bellows 41 can adopt a corrosion-resistant telescopic bellows 41 to adapt to the lifting of the pushing plate 2, the other end of the bellows 41 is connected with a one-way valve, the one-way valve comprises a valve body box 51, an abutting block 52 and an abutting spring 53, the top and bottom of the valve body box 51 are respectively provided with an inlet and an outlet, the inlet of the valve body box 51 is communicated with the bellows 41, the outlet of the valve body box 51 is connected with a feeding pipe 42, the other end of the feeding pipe 42 penetrates through the pushing plate 2, the valve body box 51 is in a cylindrical shape, the top of the abutting block 52 is in a conical shape to facilitate closing the inlet, the horizontal section of the abutting block 52 is smaller than the inner diameter of the valve body box 51 to enable the glue to pass through, and one end of the abutting spring 53 is bonded with the bottom of the abutting block 52, and the other end of the abutting spring 53 is bonded with the inner wall of the side where the outlet of the valve body box 51 is arranged.

[0036] In addition, the bottom of the bucket body 12 is provided with a dispensing needle pipe 13 communicated with the inside of the bucket body 12, the bottom of the pushing plate 2 is provided with a driving member and a dredging needle 21, the central axis of the dredging needle 21 is on the same straight line with the central axis of the dispensing needle pipe 13, the driving member comprises a driving motor 22, a rotating cylinder 23, an extension rod 24 and a mounting seat 25, the driving motor 22 is connected with the top of the pushing plate 2 through bolts, the top of the mounting seat 25 is connected with the bottom of the pushing plate 2 through bolts, the mounting seat 25 is provided with a mounting groove, the rotating cylinder 23 is located in the mounting groove and the top of the rotating cylinder 23 is rotationally connected with the bottom of the pushing plate 2, the bottom of the rotating cylinder 23 is provided with a threaded groove, the driving motor 22 is located between the two connecting rods and the output shaft of the driving motor 22 is fixed with the rotating cylinder 23 in the circumferential direction through the pushing plate 2, the top end of the extension rod 24 is threaded and is screwed with the threaded groove, the bottom end of the extension rod 24 is smooth, the bottom of the mounting seat 25 is provided with a sliding hole, the sliding hole is in a square shape, the sliding hole is communicated with the mounting groove, the bottom end of the extension rod 24 is slidingly connected with the sliding hole in a vertical direction, the bottom of the extension rod 24 is connected with the dredging needle 21, and the extension rod 24 drives the dredging needle 21 to ascend and descend to dredge the dispensing needle pipe 13 when the extension rod 24 slides.

[0037] The principle of the dispensing device is that when the dispensing needle pipe 13 needs to be dredged, the pushing member is only needed to be opened and lowered, and then the dredging needle 21 is lowered to dredge the dispensing needle pipe 13 through the driving member, so as to reduce the possibility of the dispensing needle pipe 13 being blocked, thereby improving the dispensing efficiency of the dispensing machine.

[0038] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A dispensing device, characterized in that: The invention comprises a mechanical arm and a dispensing barrel (1), wherein the mechanical arm is used to clamp the dispensing barrel (1) to realize dispensing of the dispensing device, wherein a pushing plate (2) is provided in the dispensing barrel (1), wherein the peripheral wall of the pushing plate (2) is slidably connected to the inner wall of the dispensing barrel (1), and the sliding direction is the length direction of the dispensing barrel (1), wherein the pushing plate (2) is connected to a pushing member, wherein the bottom of the pushing plate (2) is connected to a mounting seat (25), wherein a dredging needle (21) is installed at the bottom of the mounting seat (25), wherein the bottom of the dispensing barrel (1) is connected to a dispensing needle tube (13), wherein the central axis of the dredging needle (21) is in the same straight line as the central axis of the dispensing needle tube (13), and wherein the dredging needle (21) is connected to a driving member for driving the dredging needle (21) to rise and fall.

2. A dispensing device according to claim 1, characterized in that: The driving member includes a driving motor (22), a rotating cylinder (23), an extension rod (24) and a mounting seat (25), wherein the mounting seat (25) is connected to the bottom of the push plate (2) and the rotating cylinder (23) is located in the mounting seat (25), the driving motor (22) is connected to the top of the push plate (2), the rotating cylinder (23) is rotationally connected to the bottom of the push plate (2) and the driving motor (22) is transmission-connected to the rotating cylinder (23), one end of the extension rod (24) is threadedly connected to the inner wall of the rotating cylinder (23), the other end of the extension rod (24) passes through the bottom of the mounting seat (25) and the extension rod (24) is circumferentially limited, and the top of the dredging needle (21) is connected to the extension rod (24).

3. A dispensing device according to claim 2, characterized in that: A polygonal hole is provided at the bottom of the mounting seat (25), and one end of the extension rod (24) away from the rotating cylinder (23) is slidably connected to the polygonal hole, and the sliding direction is the length direction of the dispensing barrel (1).

4. A dispensing device according to claim 1, characterized in that: The dispensing barrel (1) comprises a top cover (11) and a barrel body (12), wherein the bottom of the top cover (11) is detachably connected to the top of the barrel body (12).

5. A dispensing device according to claim 4, characterized in that: The pushing member comprises an electric cylinder (3), a cylinder body of the electric cylinder (3) is connected to the top of the top cover (11), and a piston rod of the electric cylinder (3) passes through the top cover (11) and is connected to the pushing plate (2) via a connecting rod.

6. The dispensing device according to claim 4, characterized in that: The top of the top cover (11) is connected to a glue feeding tube (4), one end of the glue feeding tube (4) passes through the top cover (11) and is connected to a bellows (41), the other end of the glue feeding tube (4) is connected to a glue source, the other end of the bellows (41) is connected to a one-way valve, the outlet of the one-way valve is connected to a feeding tube (42), and the other end of the feeding tube (42) passes through the push plate.

7. The dispensing device according to claim 6, characterized in that: The glue source includes a glue bucket (43) and a circulation pump (44), the glue adding pipe (4) is connected to the liquid outlet of the circulation pump (44), and the liquid inlet of the circulation pump (44) is connected to the glue bucket (43).

8. The dispensing device according to claim 6, characterized in that: The one-way valve comprises a valve body box (51), an abutting block (52) and an abutting spring (53). The two ends of the valve body box (51) are respectively provided with an inlet and an outlet. One end of the abutting spring (53) is connected to one end of the abutting block (52), and the other end of the abutting spring (53) is connected to the inner wall of the valve body box (51) on the side where the outlet is opened. The other end of the abutting block abuts against the inlet to achieve the closure of the inlet.

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