Dispensing head cleaning equipment

Abstract

The dispensing head cleaning equipment comprises a shell, the shell is composed of a cleaning box and a bottom box which are arranged up and down, an opening is formed in the top of the cleaning box, a rotating groove is formed in the cleaning box, an opening is formed in the top of the rotating groove, a driving shaft is vertically and fixedly arranged at the bottom of a rotating shaft in a penetrating mode, and a driving system is arranged in the bottom box; the driving system is used for driving the driving shaft to rotate, a plurality of cleaning mechanisms are arranged in the cleaning box, and the multiple cleaning mechanisms are all arranged on the outer wall of the rotating groove; according to the dispensing head cleaning device, multiple dispensing heads are cleaned at the same time, and the overall cleaning efficiency of the dispensing heads is improved; in the cleaning process, residual solder paste or fixed glue in the dispensing head can be conveniently removed through centrifugal force, and the cleaning effect of the dispensing head is improved; the dredging needle penetrates through the dispensing head through centrifugal force, so that automation is realized; after the dispensing head is cleaned, the dispensing head can be dried; and the cleaning liquid is recycled after being filtered, so that the cost is saved.

Description

Technical Field

[0001] The invention relates to a dispensing head cleaning device, belonging to the technical field of dispensing head cleaning. Background Art

[0002] When encapsulating the chip, especially when fixing the chip on the base island, it is necessary to apply solder paste (solder) or fixing glue (silver glue or conductive glue) on the base island. Both solder paste and fixing glue are dripped onto the base island through the dispensing head. After each use of the dispensing head, there is solder paste or fixing glue remaining in the dispensing head. It is necessary to clean the large particles of waste residue remaining at the dispensing head outlet and the residual waste residue adhering to the inner wall of the dispensing head so that it can be used next time.

[0003] The utility model patent with application number CN202221169750.8 discloses a dispensing head cleaning device including: an injection liquid feeding device, one end of which is provided with a connecting pipe, and the connecting pipe is connected to the inside of the injection liquid feeding device; a hollow rod body, one end of which is directly or indirectly connected to the connecting pipe, and a plurality of guide holes with an angle with the radial direction of the hollow rod body are opened on the side wall of the hollow rod body, and the inclination directions of the plurality of guide holes are consistent; a needle head, and the needle head is arranged at the other end of the hollow rod body; a supporting structure, and the supporting structure includes: a supporting seat; a supporting frame, The support frames are grouped into two, and no less than one group, and the two support frames in each group are symmetrically arranged on the support seat; the support ring, the support ring is installed between the two support frames symmetrically arranged in a group, and the device can clean the glue outlet of the dispensing head and the inner wall of the dispensing head at the same time, without the need for step-by-step cleaning, which is convenient and fast, easy to use, and can also stably fix the dispensing head on the support structure, which is convenient for subsequent cleaning of the dispensing head; however, in actual use, the number of dispensing heads that need to be cleaned is relatively large, and in the prior art, the number of dispensing heads that can be cleaned at a single time is relatively small, which affects the overall cleaning efficiency.

[0004] Therefore, a dispensing head cleaning device is needed to increase the number of dispensing heads cleaned in a single time and improve the overall cleaning efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, a dispensing head cleaning device is provided to increase the number of dispensing heads cleaned in a single time and improve the overall cleaning efficiency.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: a dispensing head cleaning device, comprising a shell, the shell is composed of a cleaning box and a bottom box arranged up and down, the top of the cleaning box is open, a rotating groove is arranged in the cleaning box, the top of the rotating groove is open, a driving shaft is vertically fixed through the bottom of the rotating shaft, a driving system is arranged in the bottom box, the driving system is used to drive the driving shaft to rotate, a plurality of cleaning mechanisms are arranged in the cleaning box, and the plurality of cleaning mechanisms are arranged on the outer wall of the rotating groove; A blind hole is coaxially arranged at the top end of the driving shaft, and a plurality of input holes are arranged on the driving shaft; The cleaning mechanism comprises a mounting box, one side of the mounting box is fixedly connected to the rotating groove through a connecting pipe, the other side of the mounting groove is provided with a plurality of mounting holes, and the cleaning box is provided with cleaning liquid; A flow mechanism and a plurality of dredging mechanisms are also provided in the shell. The flow mechanism is used to drive the cleaning liquid to flow in one direction. The plurality of dredging mechanisms correspond one to one with a plurality of installation boxes. The dredging mechanism is located in the installation box and is used to dredge the dispensing head.

[0007] Preferably, a filter is installed on the driving shaft.

[0008] Preferably, a plurality of cleaning mechanisms are evenly distributed on the outer wall of the rotating groove in a circumferential direction with the axis of the driving shaft as the center.

[0009] Preferably, the flow mechanism includes a lifting plate, which is driven to rise and fall by a cylinder, the rotating groove is cylindrical, the rotating groove is arranged vertically, a fixing ring is arranged in the rotating groove, the fixing ring and the lifting plate are coaxially arranged with the rotating groove, the fixing ring is sealed and fixedly connected to the inner wall of the rotating groove, the lifting plate is located in the ring hole of the fixing ring, the lifting plate is slidably and sealedly connected to the fixing ring, a one-way valve is installed in the blind hole, the one-way valve is located above the input hole, and the dredging mechanism is used to realize one-way flow of cleaning fluid in the connecting pipe.

[0010] Preferably, the fixing ring and the rotating groove are an integrally formed structure.

[0011] Preferably, the distance between the fixing ring and the bottom of the rotating groove is greater than the thickness of the lifting plate.

[0012] Preferably, the dredging mechanism includes a movable plate, which is sealed against one end of the connecting tube, and a plurality of dredging needles are fixedly provided on the side of the movable plate away from the rotating groove, and the plurality of dredging needles correspond one-to-one to the plurality of mounting holes. Two reset units are provided on the movable plate, and the reset units are used to drive the movable plate to move toward a direction close to the rotating groove.

[0013] Preferably, the reset unit includes a guide rod and a spring, the axis of the guide rod is perpendicular to and intersects with the axis of the rotating groove, the two ends of the guide rod are respectively fixed on the inner wall of the installation box, the guide rod passes through the movable plate, the spring is sleeved on the guide rod, and the movable plate is connected to the inner wall of the installation box through the spring.

[0014] Preferably, a plurality of nozzles are provided on the top of the cleaning box.

[0015] Preferably, the connecting pipe is detachably connected to the rotating groove.

[0016] Compared with the prior art, the advantages of the present invention are: 1. It can clean multiple dispensing heads at the same time, thus improving the overall cleaning efficiency of the dispensing heads; 2. During the cleaning process, the residual solder paste or fixing glue in the dispensing head can be removed by centrifugal force, thus improving the cleaning effect of the dispensing head; 3. The centrifugal force is used to make the dredging needle pass through the dispensing head, thus achieving automation; 4. After the dispensing head is cleaned, it can also be dried; 5. The cleaning liquid is recycled after filtering, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a dispensing head cleaning device of the present invention; Figure 2 This is a front view of a dispensing head cleaning device of the present invention; Figure 3 It is a left view of a dispensing head cleaning device of the present invention; Figure 4 A top view of a dispensing head cleaning device of the present invention; Figure 5 An exploded view of a dispensing head cleaning device of the present invention; Figure 6 It is a structural schematic diagram of the cleaning mechanism; Figure 7 It is a structural diagram of the dredging mechanism; Figure 8 It is a structural diagram of the installation box; Fig. 9 It is a structural schematic diagram of the rotating tank; Fig.10 It is a schematic diagram of the connection structure between the drive shaft and the filter; Fig.11 It is a schematic diagram of the structure of the drive shaft.

[0018] in: Shell 1, rotating groove 2, driving shaft 3, cleaning mechanism 4, flow mechanism 5, dredging mechanism 6, filter 7, nozzle 8, dispensing head 9, plug 10; Cleaning box 11, bottom box 12; Blind hole 31, input hole 32; Mounting box 41, connecting pipe 42, mounting hole 43; Lifting plate 51, cylinder 52, fixing ring 53, one-way valve 54; Moving plate 61, dredging needle 62, resetting unit 63; Guide rod 63.1, spring 63.2. Implementation

[0019] like Figure 1-11 As shown, a dispensing head cleaning device in this embodiment includes a shell 1, and the shell 1 is composed of a cleaning box 11 and a bottom box 12 arranged up and down. The top of the cleaning box 11 is open, and a cylindrical rotating groove 2 is arranged in the cleaning box 11. The rotating groove 2 is arranged vertically, and the top of the rotating groove 2 is open. A driving shaft 3 is coaxially fixedly penetrated through the bottom of the rotating groove 2. A driving system is arranged in the bottom box 12, and the self-rotation of the driving shaft 3 is realized by the driving system. The driving system can be a driving part such as a motor. A plurality of cleaning mechanisms 4 are arranged in the cleaning box 11, and the plurality of cleaning mechanisms 4 are evenly distributed on the outer wall of the rotating groove 2 in a circumferential direction with the axis of the rotating groove 2 as the center; A blind hole 31 is coaxially arranged at the top end of the driving shaft 3, and a plurality of input holes 32 are arranged on the driving shaft 3, and the plurality of input holes 32 are evenly distributed circumferentially with the axis of the driving shaft 3 as the center; The cleaning mechanism 4 includes a mounting box 41, one side of the mounting box 41 is detachably fixedly connected to the rotating groove 2 through a connecting pipe 42, and the other side of the mounting groove is provided with a plurality of mounting holes 43, and the mounting holes 43 are used to install the dispensing head 9. The cleaning box 11 is provided with a cleaning liquid, and the cleaning liquid can be pure water or alcohol. The cavity in the cleaning box 11, the input hole 32, the blind hole 31, the cavity in the rotating groove 2, the connecting pipe 42, the cavity in the mounting box 41 and the mounting holes 43 form a channel for the circulation of the cleaning liquid; The housing 1 is further provided with a flow mechanism 5 and a plurality of dredging mechanisms 6, the flow mechanism 5 is used to drive the cleaning liquid to flow in one direction, the plurality of dredging mechanisms 6 correspond to the plurality of mounting boxes 41 one by one, the dredging mechanisms 6 are located in the mounting boxes 41, and the dredging mechanisms 6 are used to dredge the dispensing head 9; During operation, the dispensing head 9 is installed at the mounting hole 43, and the dispensing head 9 forms a seal with the inner wall of the mounting hole 43. When the number of mounting holes 43 is greater than the number of dispensing heads 9, the mounting holes 43 without the dispensing heads 9 are sealed by the plugs 10. Then, the driving shaft 3 is rotated by the driving system, and the rotation of the driving shaft 3 drives the rotating groove 2 to rotate, and drives the dispensing head 9 to rotate through the connecting pipe 42 and the mounting box 41. The cleaning liquid in the rotating groove 2 is transported from the connecting pipe 42 to the mounting box 41 through the flow mechanism 5. The cleaning liquid in the mounting box 41 flows through the mounting hole 43, the dispensing head 9 and the internal cavity to the cavity in the cleaning box 11 in turn. The residual solder paste or fixing glue in the dispensing head 9 is flushed out by the flow of the cleaning liquid in the dispensing head 9, so as to achieve the cleaning of the dispensing head 9. Moreover, the cavity in the glue dispensing head 9 is cleared by the clearing mechanism 6, so as to avoid the glue dispensing head 9 being blocked and causing the cleaning liquid to be unable to flow out of the cavity inside the glue dispensing head 9; In addition, by rotating the dispensing head 9, the solder paste or fixing glue remaining in the dispensing head 9 is separated from the dispensing head 9 under the action of centrifugal force, thereby improving the cleaning effect of the dispensing head 9; Secondly, multiple dispensing heads 9 can be installed on the same installation box 41, so that the overall cleaning efficiency of the dispensing heads 9 can be improved; When the dispensing head 9 is cleaned, the connecting pipe 42 stops conveying the cleaning liquid into the installation box 41, and in fact, the liquid level of the cleaning liquid in the cleaning box 11 is lower than the dispensing head 9. At this time, when the dispensing head 9 rotates, the cleaning liquid can be separated from the dispensing head 9 under the action of centrifugal force, so that the dispensing head 9 is dried; Finally, the cleaned and dried dispensing head 9 is removed from the mounting box 41, and the cleaning liquid in the cleaning box 11 is transported from the input hole 32 to the blind hole 31 through the flow mechanism 5, and the cleaning liquid in the blind hole 31 is then transported to the cavity of the rotating tank 2; The drive shaft 3 is provided with a filter 7, which is used to filter the cleaning liquid entering the delivery hole, thereby further improving the cleaning effect of the dispensing head 9. Moreover, the recycling of the cleaning liquid can also save costs. The flow mechanism 5 includes a lifting plate 51, which is driven to rise and fall by a cylinder 52. A fixing ring 53 is provided in the rotating groove 2. The fixing ring 53 and the lifting plate 51 are both coaxially arranged with the rotating groove 2. The fixing ring 53 and the rotating groove 2 are an integrally formed structure. The fixing ring 53 is sealed and fixedly connected to the inner wall of the rotating groove 2. The distance between the fixing ring 53 and the bottom of the rotating groove 2 is greater than the thickness of the lifting plate 51. The lifting plate 51 is located in the ring hole of the fixing ring 53. The lifting plate 51 and the fixing ring 53 are slidably and sealedly connected. A one-way valve 54 is installed in the blind hole 31, and the one-way valve 54 is located above the input hole 32. During the cleaning of the dispensing head 9, the lifting plate 51 is driven to descend by the cylinder 52, and the cleaning liquid in the rotating groove 2 cannot be transported to the blind hole 31 due to the one-way characteristic of the one-way valve 54, and the cleaning liquid in the rotating groove 2 can only be transported from the connecting pipe 42 to the mounting box 41. When the dispensing head 9 is cleaned, the lifting plate 51 moves to the bottom of the fixing ring 53 to avoid the formation of negative pressure in the cavity of the rotating groove 2 and affect the outflow of the cleaning liquid from the dispensing head 9, so as to facilitate the drying of the dispensing head 9. After the dispensing head 9 is removed from the mounting box 41, the lifting plate 51 is driven to rise and reset by the cylinder 52. In fact, during the period when the lifting plate 51 rises in the fixing ring 53, the connecting pipe 42 is sealed by the dredging mechanism 6. In this way, negative pressure is formed in the rotating groove 2, so that the cleaning liquid in the cleaning box 11 is transported from the input hole 32 to the blind hole 31, and the cleaning liquid in the blind hole 31 is then transported to the cavity of the rotating groove 2. The dredging mechanism 6 includes a moving plate 61, which is sealed against one end of the connecting tube 42. A plurality of dredging needles 62 are fixedly arranged on the side of the moving plate 61 away from the rotating groove 2. The plurality of dredging needles 62 correspond to the plurality of mounting holes 43 one by one. Two reset units 63 are arranged on the moving plate 61. The reset units 63 are used to drive the moving plate 61 to move toward the direction close to the rotating groove 2. During the rotation of the mounting box 41, the moving plate 61 is moved toward the direction away from the rotating groove 2 by the centrifugal force. At this time, the reset unit 63 plays a role in the movement of the moving plate 61. The movement of the movable plate 61 drives the dredging needle 62 to move synchronously, and the dredging needle 62 passes through the cavity of the dispensing head 9, and pushes out the solder paste or fixing glue remaining in the dispensing head 9, so as to achieve the dredging of the dispensing head 9. According to the size calculation, there is a gap between the dredging needle 62 and the inner wall of the dispensing head 9, which is convenient for the cleaning liquid to flow in the dispensing head 9. When the installation box 41 stops rotating, the movable plate 61 is reset by the reset unit 63, and the movable plate 61 blocks the connecting pipe 42. Here, the movable plate 61 plays the role of pushing the dredging needle 62 to move and blocking the connecting pipe 42. The reset unit 63 includes a guide rod 63.1 and a spring 63.2. The axis of the guide rod 63.1 is perpendicular to and intersects with the axis of the rotating groove 2. Both ends of the guide rod 63.1 are fixedly arranged on the inner wall of the installation box 41 respectively. The guide rod 63.1 passes through the movable plate 61. The spring 63.2 is sleeved on the guide rod 63.1. The movable plate 61 is connected to the inner wall of the installation box 41 through the spring 63.2. When the guide rod 63.1 moves, the movable plate 61 plays a moving guide effect through the cooperation between the guide rod 63.1 and the movable plate 61. When the movable plate 61 moves in a direction away from the rotating groove 2, the spring 63.2 is deformed. When the installation box 41 stops rotating, the elastic action of the spring 63.2 causes the movable plate 61 to find movement and realize reset. A plurality of nozzles 8 are provided on the top of the cleaning box 11. The nozzles 8 are externally connected to a cleaning liquid supply device. When the dispensing head 9 is cleaned, the cleaning liquid is sprayed from the nozzles 8 and acts on the dispensing head 9 to achieve external cleaning of the dispensing head 9. The cleaning liquid supply device can be a water pump and a container filled with cleaning liquid. When the water pump is started, the cleaning liquid in the container filled with cleaning liquid is transported to the nozzles 8. To sum up, the cleaning equipment can realize the simultaneous cleaning of multiple dispensing heads 9, thereby improving the overall cleaning efficiency of the dispensing heads 9, and during the cleaning process, the residual solder paste or fixing glue in the dispensing heads 9 can be easily removed by centrifugal force, thereby improving the cleaning effect of the dispensing heads 9, and the centrifugal force is used to make the clearing needle 62 pass through the dispensing heads 9, thereby realizing automation. After the dispensing heads 9 are cleaned, the dispensing heads 9 can also be dried, and the cleaning liquid can be recycled after filtering, thereby saving costs.

[0020] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A dispensing head cleaning device, characterized in that: The invention comprises an outer shell (1), wherein the outer shell (1) is composed of a cleaning box (11) and a bottom box (12) arranged in an upper and lower manner, the top of the cleaning box (11) is open, a rotating groove (2) is arranged in the cleaning box (11), the top of the rotating groove (2) is open, a driving shaft (3) is vertically fixedly penetrated through the bottom of the rotating shaft, a driving system is arranged in the bottom box (12), the driving system is used to drive the driving shaft (3) to rotate, and a plurality of cleaning mechanisms (4) are arranged in the cleaning box (11), and the plurality of cleaning mechanisms (4) are all arranged on the outer wall of the rotating groove (2); A blind hole (31) is coaxially arranged at the top end of the drive shaft (3), and a plurality of input holes (32) are arranged on the drive shaft (3); The cleaning mechanism (4) comprises a mounting box (41), one side of the mounting box (41) is fixedly connected to the rotating groove (2) via a connecting pipe (42), the other side of the mounting groove is provided with a plurality of mounting holes (43), and the cleaning box (11) is provided with cleaning liquid; A flow mechanism (5) and a plurality of dredging mechanisms (6) are also provided in the housing (1); the flow mechanism (5) is used to drive the cleaning liquid to flow in one direction; the plurality of dredging mechanisms (6) correspond one-to-one to the plurality of installation boxes (41); the dredging mechanisms (6) are located in the installation boxes (41); and the dredging mechanisms (6) are used to dredge the dispensing head (9).

2. A dispensing head cleaning device according to claim 1, characterized in that: A filter (7) is mounted on the drive shaft (3).

3. The dispensing head cleaning device according to claim 1, characterized in that: The plurality of cleaning mechanisms (4) are evenly distributed on the outer wall of the rotating groove (2) in the circumferential direction with the axis of the driving shaft (3) as the center.

4. A dispensing head cleaning device according to any one of claims 1 to 3, characterized in that: The flow mechanism (5) comprises a lifting plate (51), the lifting plate (51) is driven to rise and fall by a cylinder (52), the rotating groove (2) is cylindrical, the rotating groove (2) is arranged vertically, a fixing ring (53) is arranged in the rotating groove (2), the fixing ring (53) and the lifting plate (51) are both arranged coaxially with the rotating groove (2), the fixing ring (53) is sealed and fixedly connected to the inner wall of the rotating groove (2), the lifting plate (51) is located in the ring hole of the fixing ring (53), the lifting plate (51) and the fixing ring (53) are slidably and sealedly connected, a one-way valve (54) is installed in the blind hole (31), the one-way valve (54) is located above the input hole (32), and the dredging mechanism (6) is used to realize one-way flow of the cleaning liquid in the connecting pipe (42).

5. The dispensing head cleaning device according to claim 4, characterized in that: The fixing ring (53) and the rotating groove (2) are an integrally formed structure.

6. The dispensing head cleaning device according to claim 4, characterized in that: The distance between the fixed ring (53) and the bottom of the rotating groove (2) is greater than the thickness of the lifting plate (51).

7. The dispensing head cleaning device according to claim 4, characterized in that: The dredging mechanism (6) comprises a movable plate (61), the movable plate (61) being sealed against one end of the connecting tube (42), a plurality of dredging needles (62) being fixedly arranged on a side of the movable plate (61) away from the rotating groove (2), the plurality of dredging needles (62) corresponding one to one with the plurality of mounting holes (43), and two reset units (63) being arranged on the movable plate (61), the reset units (63) being used to drive the movable plate (61) to move towards a direction close to the rotating groove (2).

8. The dispensing head cleaning device according to claim 7, characterized in that: The reset unit (63) comprises a guide rod (63.1) and a spring (63.2); the axis of the guide rod (63.1) is perpendicular to and intersects the axis of the rotating groove (2); both ends of the guide rod (63.1) are respectively fixedly arranged on the inner wall of the installation box (41); the guide rod (63.1) passes through the movable plate (61); the spring (63.2) is sleeved on the guide rod (63.1); and the movable plate (61) is connected to the inner wall of the installation box (41) via the spring (63.2).

9. The dispensing head cleaning device according to claim 1, characterized in that: A plurality of nozzles (8) are provided on the top of the cleaning box (11).

10. The dispensing head cleaning device according to claim 1, characterized in that: The connecting pipe (42) is detachably connected to the rotating groove (2).

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