Cleaning device
By designing an integrated cleaning device with automatic flip and cleaning, the problems of low cleaning efficiency and secondary pollution in the IGBT power module package are solved, achieving efficient cleaning and quality improvement.
Patent Information
- Application Number
- CN202422415055.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-08
AI Technical Summary
In the prior art, copper residue cleaning efficiency in the IGBT power module packaging process is low and can easily cause secondary contamination.
A cleaning device is designed, including a purge device, an incoming device and an outgoing device. It uses components such as a conveying mechanism, a lifting mechanism, a rotating motor and a nozzle to realize automatic flipping and cleaning of the product, and uses plasma gas to eliminate static shocks, and a vacuum cleaner to collect residues.
Improve production efficiency, avoid secondary pollution, improve product quality and yield, reduce module drop risk, and clean up inaccessible welding point residues.
Smart Images
Figure CN223250101U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cleaning, in particular to a cleaning device. Background Art
[0002] Currently, ultrasonic welding is used to interconnect the chip with the external circuitry during IGBT power module packaging. After ultrasonic welding of copper terminals and PIN pins, copper chips and other residues are typically cleaned by manually turning the product face-down, directing compressed air through the outlet, and using a high-pressure gas jet to sweep away any remaining copper chips from the surface. Manually turning the product is inefficient and increases the risk of secondary contamination.
[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Utility Model Content
[0004] In response to the deficiencies of the prior art, the embodiment of the present utility model discloses a cleaning device, which solves the technical problem that a large amount of copper slag, copper wire, etc. are generated on the welding surface, and copper chips remain in the packaging test, causing electrical performance failure.
[0005] The technical solutions adopted in this utility model are as follows:
[0006] The purging device includes: a first frame, a first conveying mechanism, a top platform, a first lifting mechanism, a pressure plate, a hopper box, a blowing nozzle, and a rotating motor. The first conveying mechanism includes a first drive assembly provided on the first frame and a pair of first conveyor belts symmetrically provided inside the first frame. The first drive assembly drives the first conveyor belt to rotate to transport the pallet loaded with products toward the front end. The top platform is symmetrically provided inside the first conveyor belt. The first lifting mechanism is fixedly connected to the outside of the first frame. The bottom end of the side edge of the pressure plate is fixedly connected to the lifting rod of the first lifting mechanism. The pressure plate is provided with a hole, the position of which corresponds to the product to be purged. The hopper box is suspended from the bottom of the first frame. The inside of the hopper box is provided with a support rod with an upward opening. The blowing nozzle is provided at the top of the support rod and is arranged toward the hole. The rotating rod of the rotating motor is fixedly connected to the outside of the rear end of the first frame in the direction of product movement.
[0007] Its further technical solution is that the purging device also includes: a first sensor and a limit barrier, the first sensor is arranged at the rear end of the inner side of the first frame and is located at the rear end of the first conveyor belt, the limit barrier is arranged at the front side of the upper end of the first frame, and the limit barrier also includes a second lifting mechanism, the lifting rod of the second lifting mechanism is connected to the limit barrier, and the bottom end of the second lifting mechanism is connected to the front end of the inner side of the first frame.
[0008] A further technical solution is that the cleaning device further includes an input device and an output device. The input device includes a second frame, which is located at the rear end of the purging device. The input device also includes a second conveying mechanism, which includes a second drive assembly disposed on the second frame and a pair of second conveyor belts symmetrically disposed inside the second frame. The second drive assembly drives the second conveyor belts to rotate to convey the pallet loaded with products toward the front end. The output device includes a third frame, which is located at the front end of the purging device, and includes a third conveying mechanism, a push rod, and a second sensor. The third conveying mechanism includes a third drive assembly disposed on the third frame and a pair of third conveyor belts symmetrically disposed inside the third frame. The third drive assembly drives the third conveyor belts to rotate to convey the pallet loaded with products toward the front end. The push rod is located inside the third frame, and the push portion at the front end of the push rod is provided with a third lifting mechanism. When the third lifting mechanism is activated, the push portion at the front end of the push rod engages the pallet, pushing the pallet loaded with products toward the front end. The second sensor is located at the rear end of the inner side of the third frame, behind the third conveyor belt.
[0009] A further technical solution is that there are a plurality of support rods, the plurality of support rods are distributed at intervals on the inside of the funnel box in transverse direction, and the plurality of support rods are clamped on the side walls on both sides of the funnel box.
[0010] A further technical solution is that there are several mouthpieces, which are longitudinally spaced and distributed on the support rod. The airflow direction of the mouthpiece is 45° to the plumb line. The bottom end of the mouthpiece is connected to the top end of the support rod using a movable slider, and the mouthpiece can move quickly along the horizontal direction.
[0011] A further technical solution is that the bottom end of the side of the pressure plate is connected to the lifting rod of the first lifting mechanism by bolts.
[0012] A further technical solution is that both the first lifting mechanism and the push rod are telescopic cylinders.
[0013] A further technical solution is that a plurality of positioning posts are provided at the bottom end of the pressure plate, and the positions of the plurality of positioning posts correspond to the positioning holes on the product.
[0014] A further technical solution is that the purge device is externally connected to a plasma generator, and the gas output by the blow nozzle is plasma gas.
[0015] A further technical solution is that a dust collecting device is provided at the bottom of the funnel box.
[0016] The beneficial effects of the embodiments of the present utility model are as follows:
[0017] 1. The cleaning device of the present invention includes a purging device, including: a first frame, a first conveying mechanism, a top platform, a first lifting mechanism, a pressure plate, a funnel box, a blowing nozzle and a rotating motor. Start the first lifting mechanism to make the pressure plate press down the product and the first conveyor belt until the product is tightly fixed between the pressure plate and the top platform, then start the rotating motor to flip the first frame 180° longitudinally, the first frame drives the top platform and the pressure plate to flip, the product faces the blowing nozzle, the blowing nozzle outputs gas, and blows the product through the hole. Stop the purge, drive the rotating motor again to flip the first frame longitudinally -180°, so that the product and the pallet are reset, drive the first lifting mechanism again, so that the pressure plate rises to release the product, the pallet and the first conveyor belt, start the first conveyor mechanism, and the first conveyor belt outputs the pallet to the third conveyor belt. The electric flipping of products by the equipment improves production efficiency and avoids the possibility of secondary contamination.
[0018] 2. Furthermore, the purge device is connected to an external plasma generator, and the gas output from the blower nozzle is plasma gas, which eliminates the high-voltage impact of static electricity on the product and improves product yield and product quality.
[0019] 3. Furthermore, the cleaning device of the present invention also includes an input device and an output device, which integrates transportation and cleaning, improves production efficiency and product quality, and avoids the risk of modules falling due to handling errors.
[0020] 4. Furthermore, there are several blowing nozzles, which are distributed on the support rod at longitudinal intervals. The airflow direction of the blowing nozzle is 45 degrees to the plumb line. The blowing nozzle can move quickly along the horizontal line. When there are many welding points, the residue is blown to the edge of the product, which can clean up some residues at points far away from the blowing nozzle and the edge gaps.
[0021] 5. Furthermore, a dust suction device is provided at the bottom of the funnel box. Some of the foreign matter blown off from the surface of the product is suspended in the cavity, and some automatically falls into the foreign matter collection funnel due to gravity. Regardless of whether the foreign matter is suspended or has gravity, it will be uniformly sucked and collected by the dust suction device. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the top view of the cleaning device of the present invention.
[0023] Figure 2This is a front view structural diagram of the sweeping and blowing device in the cleaning device of the present invention.
[0024] Figure 3 This is a schematic diagram of the top view of the funnel box in the cleaning device of the present invention.
[0025] In the picture:
[0026] 1. Blowing device; 11. First frame; 12. First conveying mechanism; 121. First drive assembly; 122. First conveyor belt; 13. Top platform; 14. First lifting mechanism; 15. Pressing plate; 151. Hole; 152. Positioning column; 16. Funnel box; 161. Support rod; 162. Blowing nozzle; 163. Dust collecting device; 17. Rotating motor; 18. First sensor; 19. Limiting barrier; 2. Incoming device; 21. Second frame; 22. Second conveying mechanism; 221. Second drive assembly; 222. Second conveyor belt; 3. Outgoing device; 31. Third frame; 32. Third conveying mechanism; 321. Third drive assembly; 322. Third conveyor belt; 33. Push rod; 34. Second sensor. DETAILED DESCRIPTION
[0027] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.
[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the device proposed in the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.
[0029] Example:
[0030] Figure 1 This is a schematic diagram of the top view of the cleaning device of the present invention. Figure 2 This is a front view structural diagram of the sweeping and blowing device in the cleaning device of the present invention. Figure 3 This is a schematic diagram of the top view of the funnel box in the cleaning device of the utility model. Figures 1 to 3As shown, the purge device 1 includes a first frame 11, a first conveying mechanism 12, a top platform 13, a first lifting mechanism 14, a pressing plate 15, a funnel box 16, a blowing nozzle 162 and a rotating motor 17. The first conveying mechanism 12 includes a first driving assembly 121 provided on the first frame 11 and a pair of first conveying belts 122 symmetrically provided on the inner side of the first frame 11. The first driving assembly 121 includes a first rolling motor, a first pulley assembly and a first axle. The first rolling motor is provided on the outer side of the first frame 11. The first pulley assembly is disposed inside the first frame 11 and is sleeved within the first conveyor belt 122. The first rolling motor is connected to the first pulley assembly via a first axle. The output end of the first rolling motor drives the first axle to rotate, which in turn drives the first pulley assembly to rotate. The first pulley assembly then drives the first conveyor belt 122 to rotate, thereby conveying the pallet loaded with products toward the front end. The top platform 13 is symmetrically disposed inside the first conveyor belt 122. The first lifting mechanism 14 is fixedly connected to the outside of the first frame 11. The bottom end of the side of the pressure plate 15 is fixedly connected to the lifting rod of the first lifting mechanism 14. The pressure plate 15 has a hole 151 formed therein, and the position of the hole 151 corresponds to the product to be purged. For example, the bottom end of the side of the pressure plate 15 is bolted to the lifting rod of the first lifting mechanism 14. The first lifting mechanism 14 is a telescopic cylinder. The funnel box 16 is suspended at the bottom of the first frame 11. A support rod 161 is provided on the inner side of the funnel box 16 with an upward opening. The blowing nozzle 162 is provided at the top of the support rod 161 and is arranged toward the hole 151. The rotating rod of the rotating motor 17 is fixedly connected to the rear end of the first frame 11 toward the moving direction of the product.
[0031] like Figures 1 and 2 As shown, further, the purging device 1 also includes a first sensor 18 and a limit blocker 19. The first sensor 18 is arranged at the rear end of the inner side of the first frame 11 and is located at the rear end of the first conveyor belt 122. The limit blocker 19 is arranged at the front side of the upper end of the first frame 11 and is located on the outer side of the front end of the pressure plate 15. The limit blocker 19 also includes a second lifting mechanism. The lifting rod of the second lifting mechanism is connected to the baffle of the limit blocker 19, and the bottom end of the second lifting mechanism is connected to the inner side of the front end of the first frame 11. If the first sensor 18 senses that the tray enters the first frame 11, it sends a signal to start the second lifting device, and the limit blocker 19 rises to block the tray to the corresponding position. For example, the first sensor 18 is a proximity sensor.
[0032] like Figure 1As shown, further, the cleaning device also includes an input device 2 and an output device 3. The input device 2 includes a second frame 21, and the second frame 21 is provided at the rear end of the purge device 1. The input device 2 also includes a second conveying mechanism 22, including a second drive assembly 221 provided on the second frame 21 and a pair of second conveyor belts 222 symmetrically provided on the inner side of the second frame 21. The second drive assembly 221 includes a second rolling motor (not shown in the figure), a second pulley set and a second axle. The second rolling motor is provided on the inner side of the second frame 21. The second pulley set is provided on the inner side of the second frame 21 and is sleeved inside the second conveyor belt 222. The second rolling motor and the second pulley set are connected through the second axle. The output end of the second rolling motor drives the second axle to rotate, and the second axle drives the second pulley set to rotate. The second pulley set drives the second conveyor belt 222 to rotate to transport the pallet loaded with products to move toward the front end. The transmission device 3 includes a third frame 31, which is arranged at the front end of the purge device 1, and includes a third transmission mechanism 32, a push rod 33 and a second sensor 34. The third transmission mechanism 32 includes a third drive component 321 arranged on the third frame 31 and a pair of third transmission belts 322 symmetrically arranged on the inner side of the third frame 31. The third drive component 321 includes a third rolling motor (not shown in the figure), a third pulley set and a third axle. The third rolling motor is arranged on the inner side of the third frame 31. A third pulley assembly is located inside the third frame 31 and sleeved within the third conveyor belt 322. A third rolling motor is connected to the third pulley assembly via a third shaft. The output of the third rolling motor drives the third shaft to rotate, which in turn drives the third pulley assembly, which in turn drives the third conveyor belt 322 to rotate, thereby conveying the product-laden pallet toward the front. A push rod 33 is located inside the third frame 31. The front end of the push rod 33 is equipped with a third lifting mechanism. A gap exists between the purge device 1 and the delivery device 3. The push rod 33 is required to push the product-laden pallet onto the third conveyor belt 322. Upon activation of the third lifting mechanism, the front end of the push rod 33 engages the pallet, pushing the product-laden pallet toward the front. Exemplarily, the push rod 33 is a telescopic cylinder. A second sensor 34 is located within the third frame 31, outside the rear end of the third conveyor belt 322. The cleaning device also includes an infeed device 2 and an outfeed device 3, integrating transport and cleaning, improving production efficiency and product quality while avoiding the risk of modules falling due to handling errors.
[0033] like Figure 3 As shown, further, there are a plurality of support rods 161 , which are laterally spaced and distributed inside the funnel box 16 , and are clamped on the side walls on both sides of the funnel box 16 .
[0034] like Figures 2-3As shown, further, there are several blowing nozzles 162, which are longitudinally spaced apart and distributed on the support rod 161. The airflow direction of the blowing nozzle 162 is 45° to the plumb line. The bottom end of the blowing nozzle 162 is connected to the top end of the support rod 161 by a movable slider. The blowing nozzle 162 can move quickly along the horizontal line. When there are many welding points, the residue is blown to the edge of the product, which can clean up some residues in the points away from the blowing nozzle 162 and the edge gaps.
[0035] like Figure 2 As shown, the bottom end of the pressure plate 15 is provided with several positioning posts 152, which correspond to the positioning holes provided on the product. The product is an IGBT power module, and the pressure plate 15 uses the positioning posts 152 to press and secure the tray in place, preventing damage to the chip soldering points on the product surface due to direct pressure from the pressure plate 15.
[0036] Furthermore, the purge device 1 is externally connected to a plasma generator, and the gas output by the blowing nozzle 162 is plasma gas, which eliminates the high-voltage impact of static electricity on the product and improves the product yield and product quality.
[0037] like Figure 2 As shown, further, a dust suction device 163 is provided at the bottom of the funnel box 16. Some of the foreign matter blown off from the surface of the product is suspended in the cavity, and some automatically falls into the foreign matter collection funnel box 16 due to gravity. Regardless of whether the foreign matter is suspended or has gravity, it will be uniformly sucked and collected by the dust suction device 163.
[0038] When this embodiment is working:
[0039] The first conveying mechanism 12 and the second conveying mechanism 22 are started, and the second conveying belt 222 transports the pallet to the first conveying belt 122. When the first sensor 18 senses that there is a pallet on the first conveying mechanism 12, the second lifting mechanism is started, and the limit blocker 19 rises. When the first conveying belt 122 transports the pallet loaded with products to the position of the hole 151, it is blocked by the limit blocker 19 and the first conveying mechanism 12 stops.
[0040] Start the first lifting mechanism 14, so that the pressing plate 15 presses down the product and the first conveyor belt 122 until the product is pressed and fixed between the pressing plate 15 and the top platform 13 by the positioning columns 152. Then start the rotating motor 17 to flip the first frame 11 longitudinally 180°. The first frame 11 drives the top platform 13 and the pressing plate 15 to flip, so that the product squeezed and fixed by the positioning columns 152 and the top platform 13 faces the blowing nozzle 162. The blowing nozzle 162 outputs gas to purge the product through the hole 151.
[0041] Stop the purge, drive the rotary motor 17 again, flip the first frame 11 longitudinally by -180°, reset the product and the pallet, drive the first lifting mechanism 14 again, raise the pressure plate 15 to release the product, the pallet and the first conveyor belt 122, start the first conveyor mechanism 12, and the first conveyor belt 122 transports the pallet to the third conveyor belt 322.
[0042] The second sensor 34 senses that the tray has entered the outgoing device 3, and activates the second lifting mechanism. The push rod 33 is lifted so that the rear end of the push rod 33 engages the tray, pushing the tray onto the third conveyor belt 322, and activating the third conveyor mechanism 32. The third conveyor belt 322 transports the tray loaded with products into the material box.
[0043] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.
Claims
1. A cleaning device, characterized in that include: The purge device (1) comprises: First frame (11); a first conveying mechanism (12), comprising a first driving assembly (121) disposed on the first frame (11) and a pair of first conveying belts (122) symmetrically disposed on the inner side of the first frame (11), wherein the first driving assembly (121) drives the first conveying belts (122) to rotate so as to convey the pallet loaded with products to move toward the front end; A top platform (13), the top platform (13) is symmetrically arranged on the inner side of the first conveyor belt (122); a first lifting mechanism (14), the first lifting mechanism (14) being fixedly connected to the outside of the first frame (11); A pressing plate (15), the bottom end of the side of the pressing plate (15) is fixedly connected to the lifting rod of the first lifting mechanism (14), and a hole (151) is opened on the pressing plate (15), and the position of the hole (151) corresponds to the product to be purged; A funnel box (16), the funnel box (16) is suspended at the bottom of the first frame (11), has an upward opening, and a support rod (161) is provided on the inner side of the funnel box (16); a mouthpiece (162), the mouthpiece (162) being disposed at the top end of the support rod (161) and facing the hole (151); A rotating motor (17) having a rotating rod fixedly connected to the outer side of the rear end of the first frame (11) in a direction of movement of the product.
2. The cleaning device according to claim 1, characterized in that: The purge device (1) further includes: a first sensor (18), the first sensor (18) being arranged at the rear end of the inner side of the first frame (11) and located at the rear end of the first conveyor belt (122); A limit blocker (19) is provided on the front side of the upper end of the first frame (11), and the limit blocker (19) also includes a second lifting mechanism, a lifting rod of the second lifting mechanism is connected to the limit blocker (19), and the bottom end of the second lifting mechanism is connected to the front end of the inner side of the first frame (11).
3. The cleaning device according to claim 2, characterized in that: The cleaning device also includes: The introduction device (2) includes a second frame (21), the second frame (21) is arranged at the rear end of the purge device (1), and the introduction device (2) further includes: a second conveying mechanism (22), comprising a second driving assembly (221) disposed on the second frame (21) and a pair of second conveying belts (222) symmetrically disposed on the inner side of the second frame (21), wherein the second driving assembly (221) drives the second conveying belts (222) to rotate so as to convey the pallet loaded with products to move toward the front end; The transmission device (3) includes a third frame (31), the third frame (31) is arranged at the front end of the purge device (1), and includes: a third conveying mechanism (32), comprising a third driving assembly (321) disposed on the third frame (31) and a pair of third conveying belts (322) symmetrically disposed on the inner side of the third frame (31), wherein the third driving assembly (321) drives the third conveying belts (322) to rotate so as to convey the pallet loaded with products to move toward the front end; A push rod (33) is provided inside the third frame (31), and a front end pushing portion of the push rod (33) is provided with a third lifting mechanism; wherein, when the third lifting mechanism is activated, the front end pushing portion of the push rod (33) engages with the tray, pushing the tray loaded with products to move toward the front end; The second sensor (34) is arranged at the rear end of the inner side of the third frame (31) and is located at the rear end of the third conveyor belt (322).
4. The cleaning device according to claim 1, characterized in that: There are a plurality of support rods (161), and the plurality of support rods (161) are distributed at intervals on the inner side of the funnel box (16) in a transverse direction. The plurality of support rods (161) are clamped on the side walls on both sides of the funnel box (16).
5. The cleaning device according to claim 1, characterized in that: There are a plurality of blowing nozzles (162) longitudinally spaced and distributed on the support rod (161). The airflow direction of the blowing nozzle (162) is 45 degrees to the plumb line. The bottom end of the blowing nozzle (162) is connected to the top end of the support rod (161) by a movable slider. The blowing nozzle (162) can move quickly along the horizontal line direction of the support rod (161).
6. The cleaning device according to claim 1, characterized in that: The bottom end of the side of the pressing plate (15) is connected to the lifting rod of the first lifting mechanism (14) by bolts.
7. The cleaning device according to claim 3, characterized in that: The first lifting mechanism (14) and the push rod (33) are both telescopic cylinders.
8. The cleaning device according to claim 1, characterized in that: A plurality of positioning posts (152) are provided at the bottom end of the pressing plate (15), and the positions of the plurality of positioning posts (152) correspond to the positioning holes on the product.
9. The cleaning device according to claim 1, characterized in that: The purge device (1) is externally connected to a plasma generator, and the gas output by the blowing nozzle (162) is plasma gas.
10. The cleaning device according to claim 1, characterized in that: A dust collecting device (163) is provided at the bottom of the funnel box (16).