Powder spreading device for surface treatment of bearing bush plate

Abstract

The invention discloses a powder spreading device for bearing bush plate surface treatment, and relates to the technical field of bearing bush plate machining, the powder spreading device comprises a rack and a conveying belt mechanism used for conveying a plate-shaped base material, the rack is provided with a powder spraying mechanism, the powder spreading device further comprises a powder spreading transition mechanism, and the powder spreading transition mechanism comprises a reciprocating sliding plate; a plurality of protruding mechanisms are evenly distributed on the reciprocating sliding plate. Powder sprayed out through the nozzle is firstly sprayed to the reciprocating sliding plate in the transition box, aggregated particles existing in the powder can be conveniently crushed and dispersed through the protruding structures distributed on the reciprocating sliding plate, reciprocating vibration can be achieved through reciprocating sliding, the particles possibly existing in the sprayed powder can be conveniently and effectively crushed and dispersed through the protruding mechanisms, and the powder spraying efficiency is improved. And the powder laying quality is prevented from being influenced.

Description

Technical Field

[0001] The invention relates to the technical field of bearing plate processing, and in particular to a powder spreading device for surface treatment of bearing plate. Background Art

[0002] The powder coating process for bearing plates is a technology that evenly spreads metal or composite material powder on the surface of the substrate, and spreads powder on one side, and then sintering or curing to form a functional coating, which aims to improve the wear resistance, lubricity and load-bearing capacity of the bearing.

[0003] When powder is applied to the surface of existing bearing plates, the flat substrate is generally powdered first, then sintered, and then deformed. The powdering process mainly relies on a conveyor belt mechanism to uniformly transport the plate-shaped substrate through the position of the powder spraying component to achieve surface powdering, and relies on a mechanical scraper to scrape off excess powder, while also making the spread powder flat.

[0004] The shortcomings of the existing bearing plate powder spreading device are: although the existing bearing plate powder spreading device can effectively spread the powder to the surface of the plate-shaped substrate, if the metal or composite powder is accidentally exposed to a humid environment during storage and transportation, the surface absorbs moisture, and liquid bridge forces are formed between the particles, which is easy to cause agglomeration; it is also possible that the powder is charged due to friction in a dry environment, and the fine particles are aggregated due to electrostatic attraction; it is also possible that ultrafine particles are mixed in the powder, resulting in fluidity differences and local accumulation; or because the spraying pressure is too low, the powder cannot be fully dispersed, forming a clustered spray; the kinetic energy of the powder decays during flight, and it is aggregated due to gravity or airflow disturbance before reaching the substrate; too much powder is sprayed per unit time, and the equipment has no time to spread it evenly, and it accumulates into agglomerates, etc., which may lead to the presence of agglomerates in the powder. If these agglomerates or particles are directly spread on the substrate, holes are likely to appear during subsequent sintering, reducing the density and bearing capacity of the coating; the areas where the particles are not fully in contact form weak interfaces after sintering, which are prone to peeling; the agglomerated areas may destroy the continuous distribution of the solid lubricant, resulting in a surge in the local friction coefficient. Uneven coatings can cause cracks due to differences in thermal expansion under high temperature conditions. Summary of the invention

[0005] The purpose of the present invention is to provide a powder spreading device for bearing plate surface treatment, so as to solve the technical problem that the existing bearing plate surface powder spreading equipment is not convenient for processing the particles or agglomerates that may exist in the powder used to a certain extent, which easily affects the quality of subsequent product processing.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A powder spreading device for surface treatment of bearing shell plates, comprising a frame and a conveyor belt mechanism for conveying plate-shaped substrates, wherein a powder spraying mechanism is arranged on the frame, and a powder spreading transition mechanism is further included;

[0008] The powder spreading transition mechanism includes a reciprocating slide plate, the reciprocating slide plate is located above the conveyor belt mechanism, a plurality of convex mechanisms are evenly distributed on the reciprocating slide plate, a reciprocating driving mechanism is arranged between the conveyor belt mechanism and the reciprocating slide plate, during the operation of the conveyor belt mechanism, the reciprocating driving mechanism drives the reciprocating slide plate to reciprocate, and the powder spraying mechanism sprays powder materials onto the reciprocating slide plate.

[0009] Preferably, a sliding guide rod is horizontally and fixedly connected to the reciprocating slide plate, the powder spreading transition mechanism further includes a transition box, the reciprocating slide plate is located inside the transition box, the sliding guide rod horizontally penetrates through the top of the transition box, and a limiting spring is connected between one end of the sliding guide rod and the transition box; the other end of the sliding guide rod is cooperatively connected with the reciprocating driving mechanism, and the powder spraying mechanism sprays powder materials into the transition box from the top.

[0010] Preferably, the reciprocating driving mechanism includes a cam, a transmission mechanism and a baffle, the baffle is fixedly connected to the end of the sliding guide rod far away from the limiting spring, the cam is cooperatively connected with the conveyor belt mechanism through the transmission mechanism, during the operation of the conveyor belt mechanism, the cam is driven to rotate by the transmission mechanism, and the cam continuously presses on the baffle.

[0011] Preferably, the transmission mechanism includes an installation box, a first steering bevel gear and a second steering bevel gear, the installation box is fixedly arranged on one side of the frame, the first steering bevel gear and the second steering bevel gear are both rotatably arranged inside the installation box, and a synchronous belt mechanism is arranged between the first steering bevel gear and the conveyor belt mechanism, the second steering bevel gear meshes with the first steering bevel gear, and the second steering bevel gear is coaxially and fixedly connected with the cam.

[0012] Preferably, each of the convex mechanisms includes a convex rod and an elastic sphere, the convex rod penetrates through the elastic sphere and is fixedly connected with the elastic sphere, the elastic sphere penetrates through the reciprocating slide plate and is fixedly connected with the reciprocating slide plate, and a plurality of baffles matched with the convex rods are equidistantly distributed on the inner wall of one side of the transition box far away from the powder spraying mechanism.

[0013] Preferably, a suspension rope is connected to the bottom of the reciprocating slide plate, and a pendulum ball is connected to the reciprocating slide plate through the suspension rope, and the transition box is made of an elastic metal material.

[0014] Preferably, the conveyor belt mechanism includes a conveyor belt body and transmission wheels, two transmission wheels are provided and are rotatably distributed at both ends of the frame, and the conveyor belt body is cooperatively connected between the two transmission wheels.

[0015] Preferably, the synchronous belt mechanism includes a synchronous belt body and synchronous wheels. One of the drive wheels and the first steering bevel gear are both coaxially connected to one of the synchronous wheels, and the synchronous belt body is cooperatively connected between the two synchronous wheels.

[0016] Preferably, the powder spraying mechanism includes a material storage tank, a delivery pump, and a nozzle. A support frame is fixedly installed on the frame. The material storage tank is fixedly arranged on the support frame. The nozzle is fixedly arranged on one side of the transition box, and the discharge end of the nozzle penetrates into the interior of the transition box. The nozzle is communicated with the output end of the delivery pump. The delivery pump is used to suck the powder stored in the material storage tank and deliver it to the nozzle, and spray it onto the reciprocating slide plate through the nozzle.

[0017] Preferably, a scraper is fixedly arranged inside the support frame, and the scraper is located on one side of the transition box. The scraper is a hollow plate body with an open bottom. A suction pump is fixedly installed on the top of the support frame. The negative pressure end of the suction pump is communicated with the inside of the scraper, and the output end of the suction pump is communicated with the material storage tank. A funnel cylinder aligned with the scraper is installed at the bottom of the frame, and the negative pressure end of the suction pump is also communicated with the funnel cylinder. Laser induction switches electrically connected to the suction pump are installed on the inner walls of the support frame on both sides of the bottom of the scraper.

[0018] Advantages of the present invention:

[0019] 1. In the present invention, the powder sprayed by the nozzle is first sprayed onto the reciprocating slide plate in the transition box. The convex structure distributed on the reciprocating slide plate facilitates the breaking and dispersion of the aggregated particulate matter in the powder. During the operation of the conveyor belt mechanism, the cam set is driven to rotate by the synchronous belt, the first steering bevel gear, and the second steering bevel gear. The cam continuously presses the action baffle, so that the baffle drives the sliding guide rod to slide horizontally, and the set limit spring generates a resilience force. Whenever the cam disengages from the baffle, the resilience force of the limit spring is released, thereby facilitating the reciprocating oscillation of the reciprocating slide plate, and effectively breaking and dispersing the particulate matter that may exist in the sprayed powder, avoiding affecting the powder laying quality.

[0020] 2. During the reciprocating oscillation of the reciprocating slide plate in the present invention, one end of the convex rod on each convex mechanism will press against the baffle fixedly arranged in the transition box. Since the convex rod is connected to the reciprocating slide plate through an elastic sphere and the elastic sphere can deform, it is convenient for the convex rod to deflect during the extrusion process and then rebound and vibrate, that is, during the reciprocating movement of the reciprocating slide plate, each convex rod itself can also reciprocate swing, enhancing the effect on the powder, and facilitating the effective dispersion of the powder onto the plate-shaped substrate.

[0021] 3. During the reciprocating motion of the reciprocating slide plate of the present invention, the suspension rope will also be driven to drive the pendulum ball to move. The pendulum ball can easily hit the inner wall of the transition box. Since the whole transition box is made of elastic metal material, it is easy to generate vibration when being hit, so as to easily shake off the powder adhering to the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure schematic diagram of the whole of the present invention;

[0023] Figure 2 is a right-view structure schematic diagram of the whole of the present invention;

[0024] Figure 3 is a structure schematic diagram of the relative position distribution of the scraper, transition box and nozzle in the present invention;

[0025] Figure 4 is a structure schematic diagram of the cooperative connection between the reciprocating slide plate and the transition box in the present invention;

[0026] Figure 5 is a top-view structure schematic diagram of the relative position distribution of the reciprocating slide plate, convex rod and retaining piece in the present invention;

[0027] Figure 6 is a sectional structure schematic diagram of the whole of the present invention;

[0028] Figure 7 is Figure 6 an enlarged structure schematic diagram at A in

[0029] Figure 8 is a top-view structure schematic diagram of the cooperative connection between the transmission wheel and the cam in the present invention;

[0030] Figure 9 is a partial structure schematic diagram of the cooperative connection between the cam and the first steering bevel gear in the present invention;

[0031] Figure 10 is a state schematic diagram when the cam rotates to squeeze the baffle in the present invention.

[0032] Description of the reference numerals:

[0033] 1. Frame; 2. Conveyor belt body; 3. Transmission wheel; 4. Plate-shaped base material; 5. Nozzle; 6. Delivery pump; 7. Storage tank; 8. Support frame; 9. Synchronous wheel; 10. Synchronous belt body; 11. Installation box; 12. Suction pump; 13. Funnel cylinder; 14. Transition box; 15. Scraper; 16. Pendulum ball; 17. Suspension rope; 18. Limiting spring; 19. Sliding guide rod; 20. Baffle; 21. Reciprocating slide plate; 22. Convex rod; 23. Elastic sphere; 24. Retaining piece; 25. Laser induction switch; 26. First steering bevel gear; 27. Second steering bevel gear; 28. Cam. DETAILED DESCRIPTION OF THE INVENTION

[0034] The following is a detailed description of the specific embodiments of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0035] As Figures 1 - 10 shown, a powder spreading device for the surface treatment of a bearing shell plate mainly used for spreading powder on the original plate-shaped base material 4 of a bearing shell workpiece. The device mainly includes a frame 1 and a conveyor belt mechanism for conveying the plate-shaped base material 4. A powder spraying mechanism for spraying powder on the surface layer of the conveyed plate-shaped base material 4 is arranged on the frame 1. The device also includes a powder spreading transition mechanism. The powder spreading transition mechanism includes a reciprocating slide plate 21. The reciprocating slide plate 21 is located above the conveyor belt mechanism, and the powder spraying end of the powder spraying mechanism sprays powder towards the reciprocating slide plate 21. Since the particle size distribution in the conveyed powder may be uneven due to static electricity or other related reasons and there are particles, it will affect the powder spreading quality. Therefore, a plurality of convex mechanisms are evenly distributed on the reciprocating slide plate 21. The convex mechanisms facilitate the impact and fragmentation of the particles contained in the powder sprayed onto the reciprocating slide plate 21, avoiding affecting the powder spreading quality. A reciprocating driving mechanism is arranged between the conveyor belt mechanism and the reciprocating slide plate 21. During the operation of the conveyor belt mechanism, the reciprocating driving mechanism drives the reciprocating slide plate 21 to reciprocate, facilitating the reciprocating movement of the distributed convex mechanisms driven by the reciprocating slide plate 21, thereby facilitating the improvement of the treatment effect on the particles that may be contained in the powder and facilitating the dispersion of the powder, which is convenient for spreading onto the plate-shaped base material 4.

[0036] In some specific embodiments, as Figure 3 and Figure 4 shown, a sliding guide rod 19 is fixedly connected horizontally on the reciprocating slide plate 21. The powder spreading transition mechanism also includes a transition box 14 that is fixed relative to the position of the frame 1. The reciprocating slide plate 21 is located inside the transition box 14, and the size of the reciprocating slide plate 21 is smaller than the size of the transition box 14. The sliding guide rod 19 horizontally penetrates the top of the transition box 14, and the sliding guide rod 19 can slide horizontally relative to the transition box 14. One end of the sliding guide rod 19 is connected with a stretchable limit spring 18 between it and the transition box 14; the other end of the sliding guide rod 19 is cooperatively connected with the reciprocating driving mechanism. The bottom of the transition box 14 is an opening and is directly opposite to the conveying surface of the conveyor belt mechanism. The powder spraying mechanism sprays powder into the transition box 14 from the top.

[0037] In some specific embodiments, as Figures 8 - 10As shown, the reciprocating drive mechanism includes a cam 28, a transmission mechanism, and a baffle 20. The baffle 20 is fixedly connected to one end of the sliding guide rod 19 away from the limiting spring 18. The cam 28 is cooperatively connected to the conveyor belt mechanism through the transmission mechanism. During the operation of the conveyor belt mechanism, the transmission mechanism drives the cam 28 to rotate. The cam 28 continuously presses against the baffle 20. Each time the baffle 20 is pressed, the baffle 20 drives the sliding guide rod 19 to slide horizontally, and the sliding guide rod 19 drives the reciprocating slide plate 21 to slide synchronously. During this process, the limiting spring 18 stretches to generate a restoring force. When the cam 28 rotates to a certain position, its end disengages from the baffle 20, and the limiting spring 18 releases the elastic force. The sliding guide rod 19 drives the reciprocating slide plate 21 to slide back to its original position. And because the limiting spring 18 is prone to generate reciprocating oscillations when rebounding, it is convenient to vibrate and disperse the contacting powder materials, which is convenient for effective laying on the plate-shaped substrate 4. And as the cam 28 continuously rotates, the reciprocating slide plate 21 can be made to continuously reciprocate.

[0038] It should be noted that based on the rotation direction of the cam 28, the length of the baffle 20 can be set to an appropriate length, and the baffle 20 is connected to the sliding guide rod 19 at an appropriate position to ensure that during each rotation of the cam 28, when its convex end approaches the baffle 20, it can directly contact the surface of the baffle 20, and when the convex end of the cam 28 rotates past the horizontal position, it separates from the baffle 20, so as to facilitate the limiting spring 18 to instantly release the restoring force and make the reciprocating slide plate 21 vibrate.

[0039] Among them, the above-mentioned transmission mechanism includes a mounting box 11, a first steering bevel gear 26, and a second steering bevel gear 27. The mounting box 11 is fixedly arranged on one side of the frame 1. The first steering bevel gear 26 and the second steering bevel gear 27 are both rotatably arranged in the mounting box 11 through rotating shafts. And a synchronous belt mechanism is arranged between the first steering bevel gear 26 and the conveyor belt mechanism. The second steering bevel gear 27 meshes with the first steering bevel gear 26, and the rotation axes of the second steering bevel gear 27 and the first steering bevel gear 26 are perpendicular to each other. The second steering bevel gear 27 is coaxially and fixedly connected to the cam 28.

[0040] During the operation of the conveyor belt mechanism, it drives the first steering bevel gear 26 to rotate through the synchronous belt mechanism. The first steering bevel gear 26 drives the second steering bevel gear 27 to rotate. The second steering bevel gear 27 drives the cam 28 to rotate synchronously, so as to facilitate the cam 28 to continuously act on the baffle 20.

[0041] In some specific implementation schemes, in order to further ensure that the convex mechanism acts on possible particulate matters, such as Figure 4 and Figure 5As shown, each convex mechanism includes a convex rod 22 and an elastic sphere 23. The convex rod 22 passes through the elastic sphere 23 and is fixedly connected to the elastic sphere 23. The elastic sphere 23 passes through the reciprocating slide plate 21 and is fixedly connected to the reciprocating slide plate 21. Since the elastic sphere 23 passes through the reciprocating slide plate 21, the convex rod 22 naturally also passes through the reciprocating slide plate 21, and the elastic sphere 23 can be elastically deformed; a plurality of baffles 24 that cooperate with the convex rod 22 are equidistantly distributed on the inner wall of one side of the transition box 14 away from the powder spraying mechanism.

[0042] During the reciprocating sliding of the reciprocating slide plate 21, it drives the distributed convex rods 22 to move synchronously. The end of each column of convex rods 22 will squeeze through the corresponding baffle 24. During the squeezing process, the elastic sphere 23 will deform, facilitating a certain angle deflection of the convex rod 22 relative to the reciprocating slide plate 21. When the end of the convex rod 22 separates from the baffle 24, the convex rod 22 swings back under the action of the resilience of the elastic sphere 23. Repeating like this, it is convenient for the convex rod 22 itself to vibrate, thereby facilitating enhancing its effective crushing and dispersing effect on the polymerized powder or granular material.

[0043] In some specific implementation schemes, in order to reduce the amount of dust adhering to the inner wall of the transition box 14, a suspension rope 17 is connected to the bottom of the reciprocating slide plate 21, and the reciprocating slide plate 21 is connected to a pendulum ball 16 through the suspension rope 17. The transition box 14 is made of an elastic metal material, and the distribution quantity of the pendulum balls 16 can be set according to actual needs. During the reciprocating movement of the reciprocating slide plate 21, the pendulum balls 16 can swing by inertia, thereby facilitating hitting the inner wall of the transition box 14, causing the transition box 14 to vibrate and facilitating shaking off the powder adhering to the inner wall.

[0044] In some specific implementation schemes, the conveyor belt mechanism includes a conveyor belt body 2 and transmission wheels 3. There are two transmission wheels 3, which are rotatably distributed at both ends of the frame 1. One of the transmission wheels 3 is driven to rotate by a motor, and the conveyor belt body 2 is cooperatively connected between the two transmission wheels 3.

[0045] The plate-shaped base material 4 is sequentially placed on the conveyor belt body 2 at equal intervals, and then relies on the uniform transmission of the conveyor belt body 2 to pass through the powder spraying position.

[0046] In some specific implementation schemes, the synchronous belt mechanism includes a synchronous belt body 10 and synchronous wheels 9. One of the transmission wheels 3 and the first steering bevel gear 26 are both coaxially connected to a synchronous wheel 9, and the synchronous belt body 10 is cooperatively connected between the two synchronous wheels 9. In this way, when the transmission wheel 3 drives the conveyor belt body 2 to operate, one of the transmission wheels 3 will also drive the first steering bevel gear 26 to rotate through the synchronous wheel 9 and the synchronous belt body 10.

[0047] In some specific implementation schemes, such as Figure 1 and Figure 3As shown in the figure, the powder spraying mechanism includes a storage tank 7, a transfer pump 6, and a nozzle 5. A support frame 8 is fixedly installed on the frame 1, and the storage tank 7 is fixedly arranged on the support frame 8. The storage tank 7 is used to store powder materials. The nozzle 5 is fixedly arranged on one side of the transition box 14, and the discharge end of the nozzle 5 penetrates into the interior of the transition box 14 and is obliquely directed at the reciprocating slide plate 21. The nozzle 5 is a flat plate-shaped body with a width matching that of the transition box 14. The nozzle 5 is communicated with the output end of the transfer pump 6 through a pipe body. The transfer pump 6 is used to suck the powder materials stored in the storage tank 7 and transport them to the nozzle 5, and spray them onto the reciprocating slide plate 21 by relying on the nozzle 5, and then conduct them downward through the transition box 14 to the passing plate-shaped substrate 4.

[0048] In some specific implementation schemes, in order to facilitate the recovery of excess powder materials, a scraper 15 is fixedly arranged inside the support frame 8, and the scraper 15 is located on one side of the transition box 14. A certain distance is maintained between the bottom of the scraper 15 and the conveying surface of the conveyor belt mechanism, and this distance is equal to the sum of the thickness of the plate-shaped substrate 4 and the specified powder spreading thickness. The scraper 15 is a hollow plate body with an open bottom. A suction pump 12 is fixedly installed on the top of the support frame 8. The negative pressure end of the suction pump 12 is communicated with the interior of the scraper 15 through a pipeline, and the output end of the suction pump 12 is communicated with the storage tank 7. A funnel cylinder 13 aligned with the scraper 15 is installed at the bottom of the frame 1, and the negative pressure end of the suction pump 12 is also communicated with the funnel cylinder 13 through a pipeline. Laser induction switches 25 electrically connected to the suction pump 12 are installed on the inner walls of the support frame 8 on both sides of the bottom of the scraper 15. The laser induction switch 25 is divided into a laser receiver and a laser transmitter. If the change in laser occlusion occurs between the two, a signal feedback will be generated, and the laser beam path of the laser induction switch 25 is exactly passed through during the transportation of the plate-shaped substrate 4, resulting in occlusion. When occlusion occurs, the laser induction switch 25 generates a signal feedback. At this time, after the supporting background controller receives the signal, it judges based on the logic algorithm to keep the suction pump 12 in the shutdown state. When the plate-shaped substrate 4 passes through, there is no occlusion, and the laser induction switch 25 has no signal feedback. The background controller then controls the suction pump 12 to operate. The suction pump 12 generates negative pressure, generating a negative pressure suction effect on the hollow scraper 15 and the funnel cylinder 13, facilitating the suction of the powder materials falling on the conveyor belt body 2 and falling to the bottom of the frame 1.

[0049] Because when the conveyor belt body 2 conveys the plate-shaped substrate 4 through the transition box 14 for powder spreading, it is ensured that the amount of transported powder materials is sufficient enough to facilitate spreading a sufficient thickness. When the plate-shaped substrate 4 passes through the scraper 15, it is convenient to rely on the scraper 15 to scrape off the excess powder materials. Finally, the excess powder materials fall on the conveyor belt body 2 behind the plate-shaped substrate 4, and when passing under the hollow scraper 15, it is convenient to rely on negative pressure suction. When the powder materials accidentally falling from the conveyor belt body 2 fall to the bottom of the main body of the frame 1, they can be collected by relying on the funnel cylinder 13.

[0050] For the convenience of those skilled in the art to understand the embodiments of the present solution, the working principle of the present solution will be briefly described below in combination with a specific application scenario:

[0051] The plate-shaped substrate 4 is sequentially placed on the conveyor belt body 2 at equal intervals, and then relies on the uniform transmission of the conveyor belt body 2 to pass through the powder spraying position;

[0052] The transfer pump 6 is used to suck the powder stored in the storage tank 7 and transport it to the nozzle 5. It relies on the nozzle 5 to spray it onto the reciprocating slide plate 21 in the transition box 14, and then is conducted downward by the transition box 14 onto the passing plate-shaped substrate 4 to achieve powder spreading;

[0053] During the operation of the conveyor belt body 2, the corresponding driving wheel 3 drives the first steering bevel gear 26 to rotate through the synchronous belt mechanism. The first steering bevel gear 26 drives the second steering bevel gear 27 to rotate, and the second steering bevel gear 27 drives the cam 28 to rotate synchronously, so as to facilitate the cam 28 to continuously act on the baffle 20.

[0054] Each time the cam 28 presses the baffle 20, the baffle 20 drives the sliding guide rod 19 to slide horizontally, and the sliding guide rod 19 drives the reciprocating slide plate 21 to slide synchronously. During this process, the limit spring 18 stretches to generate a resilience force. When the cam 28 rotates to a certain position, its end disengages from the baffle 20, and the limit spring 18 releases the elastic force. The sliding guide rod 19 drives the reciprocating slide plate 21 to slide back to its original position. And because the limit spring 18 is prone to reciprocating oscillation when rebounding, it is convenient to vibrate and disperse the contacted powder, which is convenient and effective to be laid on the plate-shaped substrate 4. And as the cam 28 rotates continuously, the reciprocating slide plate 21 can achieve continuous reciprocating motion. The powder sprayed onto the reciprocating slide plate 21 impacts the convex rod 22. At the same time, due to the reciprocating oscillation of the reciprocating slide plate 21, it is convenient to effectively break and disperse the possible particulate matter or aggregated powder clusters in the powder, so as to avoid affecting the later processing quality.

[0055] At the same time, during the reciprocating sliding of the reciprocating slide plate 21, it drives the distributed convex rods 22 to move synchronously. The ends of the convex rods 22 in each column will press the corresponding baffles 24 at the corresponding positions. During the pressing process, the elastic spheres 23 will deform, which is convenient for the convex rods 22 to deflect at a certain angle relative to the reciprocating slide plate 21. When the end of the convex rod 22 separates from the baffle 24, the convex rod 22 swings back under the resilience force of the elastic sphere 23. In this way, it is convenient for the convex rod 22 itself to vibrate, so as to facilitate enhancing its effective crushing and dispersing effect on the aggregated powder or granular material, and ensuring that the powder is effectively laid on the plate-shaped substrate 4.

[0056] Then the plate-shaped substrate 4 passes through the scraper 15, which is convenient for scraping the laid powder layer flat and scraping off the excess powder. Finally, the excess powder falls on the conveyor belt body 2 behind the plate-shaped substrate 4;

[0057] During the process of the plate-shaped substrate 4 being transported past the powder spraying position, it exactly passes through the laser beam path of the laser induction switch 25, causing an occlusion to it. When the occlusion occurs, the laser induction switch 25 generates a signal feedback. At this time, after the supporting background controller receives the signal, it judges based on the logic algorithm to keep the suction pump 12 in the shutdown state. And when the plate-shaped substrate 4 passes through, there is no occlusion, and the laser induction switch 25 has no signal feedback. Then the background controller controls the suction pump 12 to operate. The suction pump 12 generates negative pressure, which has a negative pressure suction effect on the hollow scraper 15 and the funnel cylinder 13, facilitating the suction of the powder that has fallen on the conveyor belt body 2 and fallen to the bottom of the frame 1.

[0058] The above only discloses several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A powder spreading device for surface treatment of bearing shell plates, comprising a frame (1) and a conveyor belt mechanism for conveying plate-shaped base materials (4), wherein a powder spraying mechanism is arranged on the frame (1), and is characterized in that, It further includes a powder spreading transition mechanism; The powder spreading transition mechanism includes a reciprocating slide plate (21) which is located above the conveyor belt mechanism. A plurality of convex mechanisms are evenly distributed on the reciprocating slide plate (21). A reciprocating driving mechanism is arranged between the conveyor belt mechanism and the reciprocating slide plate (21). During the operation of the conveyor belt mechanism, the reciprocating driving mechanism drives the reciprocating slide plate (21) to reciprocate, and the powder spraying mechanism sprays powder materials onto the reciprocating slide plate (21).

2. The powder spreading device for surface treatment of a bearing shell plate according to claim 1, wherein, A sliding guide rod (19) is fixedly connected horizontally on the reciprocating slide plate (21). The powder spreading transition mechanism further includes a transition box (14). The reciprocating slide plate (21) is located inside the transition box (14). The sliding guide rod (19) horizontally penetrates through the top of the transition box (14). A limiting spring (18) is connected between one end of the sliding guide rod (19) and the transition box (14); the other end of the sliding guide rod (19) is cooperatively connected with the reciprocating driving mechanism, and the powder spraying mechanism sprays powder materials into the transition box (14) from the top.

3. The powder spreading device for surface treatment of bearing shell plates according to claim 2, characterized in that, The reciprocating driving mechanism includes a cam (28), a transmission mechanism and a baffle (20). The baffle (20) is fixedly connected to the end of the sliding guide rod (19) away from the limiting spring (18). The cam (28) is cooperatively connected with the conveyor belt mechanism through the transmission mechanism. During the operation of the conveyor belt mechanism, the cam (28) is driven to rotate by the transmission mechanism, and the cam (28) continuously presses the baffle (20).

4. A powder spreading device for surface treatment of a bearing shell plate according to claim 3, characterized in that, The transmission mechanism includes an installation box (11), a first steering bevel gear (26) and a second steering bevel gear (27). The installation box (11) is fixedly arranged on one side of the frame (1). The first steering bevel gear (26) and the second steering bevel gear (27) are both rotatably arranged inside the installation box (11). A synchronous belt mechanism is arranged between the first steering bevel gear (26) and the conveyor belt mechanism. The second steering bevel gear (27) meshes with the first steering bevel gear (26), and the second steering bevel gear (27) is coaxially and fixedly connected with the cam (28).

5. A powder spreading device for surface treatment of bearing shell plates according to claim 2, characterized in that, Each of the convex mechanisms includes a convex rod (22) and an elastic sphere (23). The convex rod (22) penetrates through the elastic sphere (23) and is fixedly connected with the elastic sphere (23). The elastic sphere (23) penetrates through the reciprocating slide plate (21) and is fixedly connected with the reciprocating slide plate (21). A plurality of baffle plates (24) which are matched with the convex rod (22) are equidistantly distributed on the inner wall of the side of the transition box (14) away from the powder spraying mechanism.

6. The powder spreading device for surface treatment of a bearing shell plate according to claim 2, characterized in that, A suspension rope (17) is connected to the bottom of the reciprocating slide plate (21), and the reciprocating slide plate (21) is connected with a pendulum ball (16) through the suspension rope (17). The transition box (14) is made of an elastic metal material.

7. A powder spreading device for surface treatment of a bearing shell plate according to claim 4, characterized in that, The conveyor belt mechanism includes a conveyor belt body (2) and transmission wheels (3). There are two transmission wheels (3) which are rotatably distributed at both ends of the frame (1). The conveyor belt body (2) is cooperatively connected between the two transmission wheels (3).

8. The powder spreading device for surface treatment of bearing shell plates according to claim 7, characterized in that, The synchronous belt mechanism includes a synchronous belt body (10) and synchronous pulleys (9). The first steering helical gear (26) and one of the transmission wheels (3) are both coaxially connected to one of the synchronous pulleys (9), and the synchronous belt body (10) is cooperatively connected between the two synchronous pulleys (9).

9. The powder spreading device for surface treatment of a bearing shell plate according to claim 2, characterized in that, The powder spraying mechanism includes a material storage tank (7), a delivery pump (6) and a nozzle (5). A support frame (8) is fixedly installed on the frame (1). The material storage tank (7) is fixedly arranged on the support frame (8). The nozzle (5) is fixedly arranged on one side of the transition box (14), and the discharge end of the nozzle (5) penetrates into the interior of the transition box (14). The nozzle (5) is communicated with the output end of the delivery pump (6). The delivery pump (6) is used for sucking the powder stored in the material storage tank (7) and delivering it to the nozzle (5), and spraying it onto the reciprocating slide plate (21) through the nozzle (5).

10. A powder spreading device for surface treatment of a bearing shell plate according to claim 2, characterized in that, A scraper (15) is fixedly arranged inside the support frame (8), and the scraper (15) is on one side of the transition box (14). The scraper (15) is a hollow plate body with an open bottom. A suction pump (12) is fixedly installed on the top of the support frame (8). The negative pressure end of the suction pump (12) is communicated with the inside of the scraper (15), and the output end of the suction pump (12) is communicated with the material storage tank (7). A funnel cylinder (13) aligned with the scraper (15) is installed at the bottom of the frame (1), and the negative pressure end of the suction pump (12) is also communicated with the funnel cylinder (13). Laser induction switches (25) electrically connected to the suction pump (12) are installed on the inner walls of the support frame (8) on both sides of the bottom of the scraper (15).

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