Metal impurity content detection device for heat-conducting pouring sealant raw material

Abstract

The utility model discloses a device for detecting the content of metal impurities in a heat-conducting pouring sealant raw material, and relates to the technical field of heat-conducting pouring sealant detection.The device for detecting the content of the metal impurities in the heat-conducting pouring sealant raw material comprises detection equipment, a filter box and a cleaning mechanism, the detection equipment is used for detecting the content of the metal impurities in the heat-conducting pouring sealant raw material, and the filter box is used for filtering the metal impurities in the heat-conducting pouring sealant raw material. The filter box is arranged on the detection equipment, a feeding pipe is arranged on the filter box, a filter screen used for filtering blocky metal impurities in the heat-conducting pouring sealant is arranged in the filter box, the blocky metal impurities in the heat-conducting pouring sealant are separated through the filter screen, the cleaning mechanism is arranged on the filter box, and the feeding pipe is arranged on the feeding pipe. And the cleaning mechanism is used for cleaning blocky metal impurities in the filter box so as to prevent the filter screen from being blocked. Blocky metal impurities in the raw materials are removed through the filter screen, and the blocky metal impurities are pushed away from the filter box in cooperation with the cleaning mechanism, so that the blocky metal impurities are separated from the raw materials.

Description

Technical Field

[0001] The utility model relates to the technical field of detection of heat-conducting potting adhesives, and particularly relates to a device for detecting the content of metal impurities in the raw materials of heat-conducting potting adhesives. Background Art

[0002] The heat-conducting potting adhesive is a two-component condensation-type heat-conducting potting adhesive. It can protect sensitive circuits and components for a long time within a wide range of temperature and humidity changes. The heat-conducting potting adhesive usually uses dry or non-dry viscous substances such as bitumen, natural resin or synthetic resin, natural rubber or synthetic rubber as the base material, and is mixed with inert fillers such as talcum powder, clay, carbon black, titanium dioxide and asbestos, and then plasticizers, solvents, curing agents, accelerators, etc. are added. During the production process of the raw materials of the heat-conducting potting adhesive, some metal impurities may be mixed in. When the content of metal impurities is small, it will not affect the preparation process of the heat-conducting potting adhesive. Therefore, it is necessary to detect the content of metal impurities in the raw materials.

[0003] The metal impurities in the raw materials of the heat-conducting potting adhesive are divided into massive metals and powdery metals. The powdery metal impurities will affect the quality of the finished heat-conducting potting adhesive, and the massive metal impurities will cause certain damage to the processing equipment. When the content of metal impurities is small, it will not affect the quality of the finished product, so it will continue to be used. However, the raw materials with a small content of metal impurities may contain massive metal impurities, and the detection device does not remove the massive metal impurities before detecting the raw materials, resulting in the subsequent processing equipment still being affected. Content of the Utility Model

[0004] The main purpose of the utility model is to propose a device for detecting the content of metal impurities in the raw materials of heat-conducting potting adhesives, aiming to remove the massive metals in the metal impurities and reduce the damage to the subsequent processing equipment.

[0005] To achieve the above object, the device for detecting the content of metal impurities in the raw materials of heat-conducting potting adhesives proposed by the utility model includes:

[0006] A detection device, which is used to detect the content of metal impurities in the raw materials of heat-conducting potting adhesives:

[0007] A filter box, which is arranged on the detection device. The filter box is provided with a feed pipe, and a filter screen for filtering the massive metal impurities in the heat-conducting potting adhesive is arranged in the filter box to separate the massive metal impurities in the heat-conducting potting adhesive;

[0008] A cleaning mechanism, which is arranged on the filter box and is used to clean the massive metal impurities in the filter box to prevent the filter screen from being blocked.

[0009] Preferably, a blanking port is formed on the filtering box, the filtering box is provided with a blanking pipeline for conveying massive metal impurities, and the filtering box is communicated with the blanking port.

[0010] Preferably, a storage box is arranged on the detection device, and the storage box is located at one end of the blanking pipeline away from the filtering box, and the storage box is used for collecting the removed massive metal impurities.

[0011] Preferably, the cleaning mechanism includes:

[0012] A cylinder, the cylinder is arranged on the filtering box, the cylinder is drivingly connected with a cleaning plate, and the cylinder is used for driving the cleaning plate to move closer to or away from the blanking port;

[0013] An auxiliary component, the auxiliary component is arranged on the cleaning plate, and the auxiliary component is used for assisting the cleaning plate to drive the massive metal impurities to move towards the blanking port.

[0014] Preferably, the auxiliary component includes:

[0015] A first spring, the first spring is arranged on the cleaning plate, and a pushing plate is arranged on a side of the first spring away from the cleaning plate;

[0016] An auxiliary plate, the auxiliary plate is arranged on the pushing plate, and a connecting plate slidably connected in the filtering box is arranged on the auxiliary plate;

[0017] A limiting rod, the limiting rod is arranged on the connecting plate, and a movable plate is slidably connected to the outer side of the limiting rod, and a limiting block slidably connected in the movable plate is arranged on a side of the limiting rod away from the connecting plate;

[0018] A second spring, the second spring is arranged on a side of the limiting block close to the connecting plate, and the second spring is arranged on the movable plate;

[0019] A motor, the motor is arranged on the movable plate, the motor is drivingly connected with a cam contacting the connecting plate, and the motor is used for driving the cam to rotate so that the connecting plate moves closer to or away from the motor.

[0020] Preferably, a side of the auxiliary plate away from the pushing plate is an inclined plate with a slope greater than 45 degrees and less than 90 degrees, a side of the pushing plate close to the filter screen contacts the filter screen, and the pushing plate is used for driving the massive metal impurities to move towards the blanking port.

[0021] Preferably, a feed inlet is provided on the detection device, and a material conveying port is provided on the filter box. The material conveying port is communicated with the feed inlet, and the material conveying port and the feed inlet are used to communicate the filter box with the detection device.

[0022] Preferably, a heating device is provided on the filter box, and the heating device is used to heat the raw material of the thermally conductive silica gel sheet to prevent the raw material of the thermally conductive silica gel sheet from solidifying.

[0023] Preferably, an electric push rod is provided on the filter box. The electric push rod is drivingly connected with a moving plate. The electric push rod drives the moving plate to move closer to or away from the material falling port. A closing plate for closing the material falling port is provided on the moving plate.

[0024] Preferably, a sealing member is provided on the filter box, and the sealing member is used to seal the gaps between the filter box and various components to prevent the raw material of the thermally conductive silica gel sheet from leaking out.

[0025] In the technical solution provided by the present utility model, a feed pipe is provided on the filter box, a filter net for filtering the blocky metal impurities in the thermally conductive potting adhesive is provided in the filter box, a cleaning mechanism is provided on the filter box, and the cleaning mechanism is used to clean the blocky metal impurities in the filter box. The blocky metal impurities in the raw material of the thermally conductive silica gel sheet are removed through the filter net, and the blocky metal impurities are pushed away from the filter box in cooperation with the cleaning mechanism, so as to separate the blocky metal impurities from the raw material of the thermally conductive silica gel sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0027] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a device for detecting the metal impurity content of a raw material of a thermally conductive potting adhesive provided by the present utility model;

[0028] Figure 2 For Figure 1 The front view schematic diagram of the device for detecting the metal impurity content of the raw material of the thermally conductive potting adhesive in

[0029] Figure 3 It is a schematic diagram of the connection structure of the filter box and the filter box;

[0030] Figure 4 It is a schematic diagram of the structure of the cleaning mechanism.

[0031] Description of the attached reference numerals:

[0032] 1. Detection device; 2. Filter box; 3. Feed pipe; 4. Cleaning mechanism; 401. Cleaning plate; 402. Cylinder; 403. Movable plate; 404. Motor; 405. Cam; 406. Connecting plate; 407. Auxiliary plate; 408. Pushing plate; 409. First spring; 410. Limiting block; 411. Second spring; 412. Limiting rod; 5. Filter screen; 6. Blanking pipeline; 7. Storage box; 8. Sealing plate; 9. Moving plate; 10. Electric push rod.

[0033] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0035] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0037] The present utility model provides a device for detecting the metal impurity content of a heat-conducting potting adhesive raw material, Figures 1 to 4 which is an embodiment of the device for detecting the metal impurity content of the heat-conducting potting adhesive raw material provided by the present utility model.

[0038] Please refer to together Figures 1 to 2, the metal impurity content detection device for the heat-conducting potting adhesive raw material includes a detection device 1, a filtration box 2 and a cleaning mechanism 4. The detection device 1 is used to detect the metal impurity content in the heat-conducting potting adhesive raw material. The filtration box 2 is arranged on the detection device 1. An inlet pipe 3 is arranged on the filtration box 2. A filter net 5 for filtering the massive metal impurities in the heat-conducting potting adhesive is arranged in the filtration box 2. The massive metal impurities in the heat-conducting potting adhesive are separated by the filter net 5. The cleaning mechanism 4 is arranged on the filtration box 2. The cleaning mechanism 4 is used to clean the massive metal impurities in the filtration box 2 to prevent the filter net 5 from being blocked.

[0039] After the heat-conducting silicone sheet raw material enters the filtration box 2 through the inlet pipe 3, the filter net 5 filters the heat-conducting silicone sheet raw material in the filtration box 2, separates the massive metal impurities in the heat-conducting silicone sheet raw material, so that the filtered heat-conducting silicone sheet raw material only contains powdery metal impurities, and the result detected by the detection device 1 when detecting the metal impurity content is the content of the powdery metal impurities in the heat-conducting silicone sheet raw material, avoiding the possibility of the massive metal impurities entering the processing equipment and damaging the processing equipment.

[0040] After the massive metal impurities are separated, they will accumulate in the filtration box 2. When they accumulate to a certain extent, they will form a blockage, causing the heat-conducting silicone sheet raw material to be difficult to flow. Therefore, it is necessary to regularly clean the massive metal impurities accumulated in the filtration box 2 through the cleaning mechanism 4. After a period of time, the inlet pipe 3 will stop transporting the heat-conducting silicone sheet raw material into the filtration box 2. After the inlet pipe 3 stops transporting, after an interval of time, the remaining heat-conducting silicone sheet raw material in the filtration box 2 completes the separation work, and then the cleaning mechanism 4 is started to clean the massive metal impurities accumulated on the filter net 5, so as to avoid the blockage caused by excessive accumulation of the massive metal impurities. The cleaning mechanism 4 runs continuously within the set time. After the set time ends, the cleaning mechanism 4 returns to the initial position and stops running. The inlet pipe 3 is opened again to transport the heat-conducting silicone sheet raw material into the filtration box 2 after the cleaning mechanism 4 returns to the initial position.

[0041] Therefore, in the technical solution provided by the present utility model, an inlet pipe 3 is arranged on the filtration box 2, a filter net 5 for filtering the massive metal impurities in the heat-conducting potting adhesive is arranged in the filtration box 2, the cleaning mechanism 4 is arranged on the filtration box 2, the cleaning mechanism 4 is used to clean the massive metal impurities in the filtration box 2. The massive metal impurities in the heat-conducting silicone sheet raw material are removed by the filter net 5, and the cleaning mechanism 4 is cooperated to push the massive metal impurities away from the filtration box 2, so as to separate the massive metal impurities from the heat-conducting silicone sheet raw material.

[0042] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in the article. The control method of this application is controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and this application is mainly used to protect mechanical devices. Therefore, this application will no longer explain the control method and circuit connection in detail. Connect the industrial power interface, power on the device, and the PLC system controls the entire device to operate as expected.

[0043] Furthermore, a material drop opening is provided on the filter box 2 , and a material drop pipe 6 for conveying bulk metal impurities is provided on the filter box 2 , and the filter box 2 is communicated with the material drop opening.

[0044] When the cleaning mechanism 4 pushes the bulk metal impurities accumulated on the filter screen 5, an opening that can be connected to the outside is required to be opened on the filter box 2. Therefore, a discharge port is opened on the filter box 2 so that the bulk metal impurities pushed by the cleaning mechanism 4 can escape from the filter box 2 through the discharge port. At the same time, in order to prevent the bulk metal impurities that have escaped from the filter box 2 from being scattered on the ground, which makes it inconvenient for the staff to clean it centrally, a discharge channel connected to the discharge port is provided on the filter box 2, so that the bulk metal impurities pushed out of the filter box 2 through the discharge port are transported through the discharge pipe 6 and accumulated on the same ground, which is convenient for the staff to clean the bulk metal impurities centrally. At the same time, the horizontal height of the upper surface of the filter screen 5 is higher than the bottom wall of the inner cavity of the discharge port and lower than the top wall of the inner cavity of the discharge port, and the distance between the upper surface of the filter screen 5 and the top wall of the inner cavity of the discharge port is less than the height of the accumulated bulk metal impurities, so that the bulk metal impurities accumulated on the filter screen 5 will not be blocked when they are pushed toward the discharge port and can be smoothly pushed into the discharge port.

[0045] Furthermore, a receiving box 7 is provided on the detection device 1, and the receiving box 7 is located at one end of the blanking pipe 6 away from the filter box 2, and the receiving box 7 is used to collect the removed block metal impurities.

[0046] The bulk metal impurities separated from the filtration box 2 are concentrated and stacked together through the blanking pipeline 6, which facilitates the staff to process them in batches. However, these bulk metal impurities still fall on the ground, requiring the staff to collect them and clean the ground after the collection. Therefore, a storage box 7 is provided at the outlet of the blanking pipeline 6 for discharging the bulk metal impurities, and the bulk metal impurities separated from the filtration box 2 are directly collected in the storage box 7, so that the bulk metal impurities will not fall on the ground and cause pollution. Thus, the collection operation is completed while the bulk metal impurities are concentrated. The staff only needs to transport and replace the storage box 7 to complete the collection of the bulk metal impurities, greatly improving the work efficiency.

[0047] When the bulk metal impurities fall into the storage box 7 through the blanking pipeline 6, they will impact the bottom wall of the inner cavity of the storage box 7. Excessive impact times will cause the storage box 7 to be damaged in advance. Therefore, a buffer structure can be designed to relieve the impact caused by the bulk metal impurities falling into the storage box 7. For example, a plurality of buffer springs are arranged in the storage box 7, and a movable plate 403 is arranged on the buffer springs. The impact formed by the falling bulk metal impurities is weakened through the cooperation of the buffer springs and the movable plate 403, thereby reducing the damage caused by the impact. It is also possible to fill a large amount of liquid in the storage box 7, so that the falling metal impurities fall into the liquid, and the impact force is weakened while the falling speed is weakened, so that the impact force formed when the bulk metal impurities touch the storage box 7 will not damage the storage box 7. There are various structures for weakening the impact strength, and the storage box 7 is prevented from being damaged in advance due to multiple impacts by weakening the impact force.

[0048] Please refer to Figures 3 to 4 simultaneously, the cleaning mechanism 4 includes a cylinder 402 and an auxiliary component. The cylinder 402 is arranged on the filtration box 2. The cylinder 402 is drivingly connected with a cleaning plate 401. The cylinder 402 is used to drive the cleaning plate 401 to move closer to or away from the blanking port. The auxiliary component is arranged on the cleaning plate 401, and the auxiliary component is used to assist the cleaning plate 401 to drive the bulk metal impurities to move towards the blanking port.

[0049] When cleaning the bulk metal impurities accumulated on the filter screen 5, the cylinder 402 is started. The cylinder 402 drives the cleaning plate 401 to move towards the blanking port through the output shaft. While moving, the cleaning plate 401 pushes the bulk metal impurities accumulated on the filter screen 5 to move towards the blanking port together until they are pushed away from the filter screen 5 by the cleaning plate 401 and enter the blanking pipeline 6 through the blanking port, and finally fall into the storage box 7 through the blanking pipeline 6, completing the cleaning of the bulk metal impurities and collecting the bulk metal impurities at the same time.

[0050] The cleaning plate 401 moves driven by the cylinder 402 and cleans the bulk metal impurities during the movement. However, the last small part of the bulk metal impurities may stay in the blanking port due to the loss of thrust and cannot enter the blanking pipe 6. Therefore, an auxiliary component is provided. The auxiliary component moves together with the cleaning plate 401 and continuously impacts the bulk metal impurities during the movement of the cleaning plate 401, pushing the bulk metal impurities towards the blanking port, and also enabling the last small part of the bulk metal impurities to break away from the blanking port and enter the blanking pipe 6 through the impact of the auxiliary component during the final pushing process, and then fall into the storage box 7 through the blanking pipe 6.

[0051] Specifically, the auxiliary component includes a first spring 409, an auxiliary plate 407, a limiting rod 412, a second spring 411 and a motor 404. The first spring 409 is arranged on the cleaning plate 401. A pushing plate 408 is arranged on the side of the first spring 409 away from the cleaning plate 401. The auxiliary plate 407 is arranged on the pushing plate 408. A connecting plate 406 which is slidably connected in the filter box 2 is arranged on the auxiliary plate 407. The limiting rod 412 is arranged on the connecting plate 406, and a movable plate 403 is slidably connected to the outer side of the limiting rod 412. A limiting block 410 which is slidably connected in the movable plate 403 is arranged on the side of the limiting rod 412 away from the connecting plate 406. The second spring 411 is arranged on the side of the limiting block 410 close to the connecting plate 406, and the second spring 411 is arranged on the movable plate 403. The motor 404 is arranged on the movable plate 403. The motor 404 is drivingly connected with a cam 405 which contacts the connecting plate 406. The motor 404 is used to drive the cam 405 to rotate so that the connecting plate 406 moves closer to or away from the motor 404.

[0052] When the cylinder 402 starts, the motor 404 is started simultaneously. The motor 404 drives the cam 405 to rotate through the output shaft. When the cam 405 drives the connecting plate 406 to move away from the movable plate 403 during rotation, the connecting plate 406 drives the limit block 410 to move together through the limit rod 412. While the limit block 410 moves, it compresses the second spring 411. And when the connecting plate 406 moves, it drives the pushing plate 408 to move together through the auxiliary plate 407. When the pushing plate 408 moves, it compresses the first spring 409 and approaches the cleaning plate 401. The first spring 409 and the second spring 411 are compressed and then rebound. The first spring 409 drives the pushing plate 408 to move away from the cleaning plate 401 through the rebounding force. The second spring 411 drives the limit block 410 to move towards the initial position through the rebounding force. At the same time, the limit block 410 drives the connecting plate 406 to approach the movable plate 403 through the limit rod 412 until it contacts the cam 405. Through the continuous movement of the cam 405, the reciprocating movement of the connecting plate 406 is realized, and then the pushing plate 408 continuously approaches or moves away from the cleaning plate 401. During the continuous movement process, the pushing plate 408 constantly collides with the massive metal impurities, causing the metal impurities to be constantly knocked towards the material discharge port, and directly knocking the massive metal impurities on the filter screen 5 into the material discharge pipe 6 at the place close to the material discharge port, thereby avoiding the situation that some massive metal impurities remain in the material discharge port.

[0053] Further, the side of the auxiliary plate 407 away from the pushing plate 408 is an inclined plate with an inclination angle greater than 45 degrees and less than 90 degrees. The side of the pushing plate 408 close to the filter screen 5 contacts the filter screen 5. The pushing plate 408 is used to drive the massive metal impurities to move towards the material discharge port.

[0054] There is a certain gap between the pushing plate 408 and the cleaning plate 401, and the first spring 409 is arranged between the pushing plate 408 and the cleaning plate 401. The raw material of the thermal conductive silicone sheet will flow into the gap between the pushing plate 408 and the cleaning plate 401 and part of it will remain on the first spring 409. Some massive metal impurities may also get stuck in the first spring 409, resulting in a shortened compression length of the first spring 409. Therefore, the auxiliary plate 407 is provided to block the gap. At the same time, in order to avoid part of the raw material of the thermal conductive silicone sheet remaining on the auxiliary plate 407, the auxiliary plate 407 is inclined, making the auxiliary plate 407 an inclined plate, so that the raw material of the thermal conductive silicone sheet falling on the auxiliary plate 407 falls along the slope onto the filter screen 5 for separation work.

[0055] During the movement of the pushing plate 408, it contacts the filter net 5, so that the massive metal impurities attached to the filter net 5 will be pushed by the pushing plate 408 towards the material discharge port. At the same time, in order to prevent the massive metal impurities from grinding or cutting off the wire mesh of the filter net 5 during the pushing process, the wire mesh of the filter net 5 can be made of a metal material, thereby reducing the loss of the filter net 5 caused by the massive metal impurities attached to it during the movement.

[0056] In order to enable the raw material of the heat-conducting silica gel sheet that has been filtered in the filter box 2 to flow through the filter box 2 and into the detection device 1, it is necessary to connect the filter box 2 and the detection device 1.

[0057] Specifically, a feed inlet is provided on the detection device 1, and a material conveying port is provided on the filter box 2. The material conveying port is connected to the feed inlet, and the material conveying port and the feed inlet are used to connect the filter box 2 and the detection device 1.

[0058] The filter box 2 and the detection device 1 are connected through the material conveying port on the filter box 2 and the feed inlet on the detection device 1. After the filter box 2 completes the filtering work through the filter net 5, the raw material of the heat-conducting silica gel sheet falls into the material conveying port, enters the feed inlet through the material conveying port, and finally the raw material is conveyed into the detection device 1 through the feed inlet to complete the detection work of the metal content.

[0059] Furthermore, a heating device is provided on the filter box 2, and the heating device is used to heat the raw material of the heat-conducting silica gel sheet to prevent the raw material of the heat-conducting silica gel sheet from solidifying.

[0060] When the outdoor temperature is relatively low, the temperature in the filter box 2 is often not high enough. At this time, the raw material of the heat-conducting silica gel sheet is likely to solidify due to the low temperature after staying in the filter box 2 for a period of time. Once the heat-conducting silica gel sheet solidifies on the filter net 5, the mesh holes of the filter net 5 will be blocked. After the mesh holes of the filter net 5 are blocked, the raw material of the heat-conducting silica gel sheet cannot be filtered and separated, and the raw material of the heat-conducting silica gel sheet will be blocked in the filter box 2 and cannot enter the material conveying port, resulting in the inability of the raw material of the heat-conducting silica gel sheet to flow into the detection device 1 to complete the detection work of the metal impurity content. Therefore, a heating device is provided on the filter box 2. By means of the heating device, the temperature in the filter box 2 is increased, so that the temperature in the filter box 2 is continuously maintained above a suitable temperature. The heating device is a device such as a heating pipe or a heating wire for raising the temperature. The heating pipe or the heating wire is evenly arranged in the filter box 2, so that the space inside the filter box 2 is gradually heated. At the same time, a heating device can be provided near the filter net 5, mainly for heating the part of the filter net 5 where massive metal impurities are accumulated, to avoid the raw material of the heat-conducting silica gel sheet remaining on the massive metal impurities from solidifying and fixing the massive metal impurities on the filter net 5, making it difficult to clean.

[0061] In order to avoid waste caused by some thermally conductive silicone sheets escaping from the filter box 2 through the blanking port during the separation process, it is necessary to close the blanking port during the separation work. An electric push rod 10 is provided on the filter box 2, and the electric push rod 10 is driven by a movable plate 9. The electric push rod 10 drives the movable plate 9 to move toward or away from the blanking port. A closing plate 8 for closing the blanking port is provided on the movable plate 9.

[0062] When it is necessary to open the blanking port to clean up the accumulated block metal impurities, the electric push rod 10 is started. The electric push rod 10 drives the movable plate 9 to move through the output shaft, and drives the closing plate 8 to move away from the blanking port through the movable plate 9 until the blanking port is fully opened. If it is necessary to close the blanking port, the electric push rod 10 is started to drive the movable plate 9 to move in the opposite direction so that the blanking port can be gradually closed by the closing plate 8.

[0063] The moving distance of the movable plate 9 needs to be limited to prevent the movable plate 9 from directly colliding with the electric push rod 10 when being pulled back by the electric push rod 10. For example, the electric push rod 10 is set in the installation box, and the installation box is set on the filter box 2. At the same time, the installation box is provided with an opening on the side facing the movable plate 9, and the opening allows the output shaft of the electric push rod 10 to extend or retract. At the same time, a rubber pad is provided at the opening to prevent the movable plate 9 from directly colliding with the installation box, and also to avoid direct collision between the movable plate 9 and the electric push rod 10. A slider slidably connected to the filter box 2 can also be provided on the closing plate 8, and the moving distance of the closing plate 8 can be limited by the length of the slide groove, thereby limiting the moving distance of the movable plate 9, so that the movable plate 9 will not collide with the electric push rod 10 when it retracts.

[0064] There will still be some gaps between the different holes on the filter box 2 when used in conjunction with other components. The thermal conductive silicone sheet material in the filter box 2 will penetrate through these gaps to the outside of the filter box 2. Therefore, a seal is provided on the filter box 2. The seal is used to seal the gaps between the filter box 2 and the various components to prevent the thermal conductive silicone sheet material from leaking out.

[0065] A first sealing plate is provided at the contact point between the filter box 2 and the cleaning plate 401, and the first sealing plate is in contact with the cleaning plate 401, so as to prevent the raw material of the thermally conductive silicone sheet from leaking out through the hole connecting the output shaft of the cylinder 402 and the filter box 2; a first sealing ring is provided in the filter box 2, and the first sealing ring is sleeved on the outer side of the connecting plate 406, so that the hole through which the connecting plate 406 passes through the filter box 2 is sealed; a second sealing ring is provided in the filter box 2, and the second sealing ring is sleeved on the outer side of the output shaft of the electric push rod 10, so that the hole through which the output shaft of the electric push rod 10 passes through the filter box 2 is sealed; finally, second sealing plates are provided on several surfaces where the closing plate 8 contacts the filter box 2, so that the raw material of the thermally conductive silicone sheet will not leak out from the blanking hole.

[0066] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A detection device for the metal impurity content of a heat-conducting potting adhesive raw material, characterized in that, Including: A detection device for detecting the content of metal impurities in the raw material of heat-conducting potting glue; A filtering box provided on the detection device, with a feed pipe provided on the filtering box, and a filter screen for filtering blocky metal impurities in the heat-conducting potting glue is provided inside the filtering box to separate the blocky metal impurities in the heat-conducting potting glue with the filter screen; A cleaning mechanism provided on the filtering box, which is used to clean the blocky metal impurities in the filtering box to prevent the filter screen from being blocked.

2. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 1, wherein, A material dropping port is opened on the filtering box, and a material dropping pipe for transporting blocky metal impurities is provided on the filtering box, and the filtering box is communicated with the material dropping port.

3. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 2, characterized in that A storage box is provided on the detection device, and the storage box is located at one end of the material dropping pipe away from the filtering box, and the storage box is used to collect the removed blocky metal impurities.

4. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 2, characterized in that, The cleaning mechanism includes: A cylinder provided on the filtering box, the cylinder is drivingly connected with a cleaning plate, and the cylinder is used to drive the cleaning plate to move closer to or away from the material dropping port; An auxiliary component provided on the cleaning plate, which is used to assist the cleaning plate to drive the blocky metal impurities to move towards the material dropping port.

5. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 4, wherein, The auxiliary component includes: A first spring provided on the cleaning plate, and a pushing plate is provided on the side of the first spring away from the cleaning plate; An auxiliary plate provided on the pushing plate, and a connecting plate slidably connected inside the filtering box is provided on the auxiliary plate; A limiting rod provided on the connecting plate, and a movable plate is slidably connected to the outside of the limiting rod, and a limiting block slidably connected inside the movable plate is provided on the side of the limiting rod away from the connecting plate; A second spring provided on the side of the limiting block close to the connecting plate, and the second spring is provided on the movable plate; A motor provided on the movable plate, the motor is drivingly connected with a cam in contact with the connecting plate, and the motor is used to drive the cam to rotate so that the connecting plate moves closer to or away from the motor.

6. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 5, wherein The side of the auxiliary plate away from the pushing plate is an inclined plate with an inclination greater than 45 degrees and less than 90 degrees. The side of the pushing plate close to the filter screen is in contact with the filter screen, and the pushing plate is used to drive the blocky metal impurities to move towards the material dropping port.

7. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 1, wherein A feed port is provided on the detection device, and a material conveying port is provided on the filtering box. The material conveying port is communicated with the feed port, and the material conveying port and the feed port are used to connect the filtering box and the detection device.

8. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 1, characterized in that, A heating device is provided on the filtering box, and the heating device is used to heat the raw material of the heat-conducting silica gel sheet to prevent the raw material of the heat-conducting silica gel sheet from solidifying.

9. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 2, wherein An electric push rod is provided on the filtering box, the electric push rod is drivingly connected with a moving plate, the electric push rod drives the moving plate to move closer to or away from the material dropping port, and a closing plate for closing the material dropping port is provided on the moving plate.

10. The metal impurity content detection device for the heat-conducting potting adhesive raw material according to claim 1, characterized in that, A seal is provided on the filtration box, and the seal is used to seal the gaps between the filtration box and various components to prevent the leakage of the raw material of the heat-conducting silicone sheet.

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