A lost foam coating applicator

Abstract

The application relates to the field of casting coating technology and discloses a lost foam coating device which comprises a bottom plate table, a protection box fixedly connected to the top of the bottom plate table, a clamping seat fixedly connected to the top of the bottom plate table, a main rotating shaft rotatably connected to the inner wall of the clamping seat, a spraying pad arranged in the protection box, the inner wall center of the spraying pad being fixedly connected with the outer wall of the main rotating shaft, a baffle arranged on the two sides of the spraying pad, a paint tank fixedly connected to the top of the protection box, a discharging bin fixedly communicated with the top of the paint tank, a plurality of spraying pipes hingedly connected to the bottom of the paint tank, a swinging assembly arranged on the outside of the spraying pipes and used for swinging the spraying pipes, in the process that the pipes roll along the spraying pad slope, the swinging assembly can swing the plurality of spraying pipes, the spraying pipe spout position is continuously changed, the spout can always aim at the pipes rolling along the spraying pad slope, and the continuity and accuracy of spraying are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of casting coating, and in particular relates to a lost foam coating device. Background Art

[0002] Lost foam casting (LFC) is a novel casting method that combines paraffin wax or foam patterns of similar size and shape to the casting into a pattern cluster. After being coated with a refractory coating and dried, the cluster is embedded in dry quartz sand and vibrated to form the pattern. Pour the pattern under negative pressure, causing the pattern to vaporize and liquid metal to occupy the pattern. After solidification and cooling, the casting is formed. In the LFC process, a coating made from a refractory material is applied to the pattern.

[0003] The lost foam process often directly forms pipe castings through foam plastic models. Customized pipe parts such as automobile molds and machine bases can be quickly trial-produced through hand-made foam models, while standardized parts (such as drainage pipes and gas pipes) can be mass-produced using molding machines.

[0004] When spraying lost foam castings in the shape of pipe fittings, the traditional spraying method is used to process the pipe fittings. Due to the special shape of the pipe fittings, during the spraying process, the fixed position of the spray gun is difficult to fully cover the surface of the pipe fittings. For example, some concave parts of the pipe fittings, the connection between the side and the back, etc., are difficult for the paint to reach evenly, and it is very easy to form dead corners for spraying.

[0005] To this end, the present invention provides a lost foam coating device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.

[0007] The coating spraying device of the present invention is a kind of coating device of lost foam coating, and it comprises a bottom plate platform, and a protective box is fixedly connected to the top of the bottom plate platform, and a clamping seat is fixedly connected to the top of the bottom plate platform, and the inner wall of the clamping seat is rotatably connected to the main rotating shaft, and a spray pad is provided inside the protective box, and the center of the inner wall of the spray pad is fixedly connected to the outer wall of the main rotating shaft, and guard plates are provided on both sides of the spray pad, and the top of the protective box is fixedly connected to the paint box, and the top of the paint box is fixedly connected to the unloading bin, and the bottom of the paint box is hinged with multiple spray pipes, and the bottom of the spray pad is provided with a driving component that drives the spray pad to tilt in different directions, and a loading component and a unloading component are respectively provided on both sides of the spray pad, and the loading component is used to put paint pipe fittings onto the surface of the spray pad, and the unloading component can move the pipe fittings after the paint is completed away from the surface of the spray pad, and the outside of the spray pipe is provided with a swinging component that drives the spray pipe to swing.

[0008] Preferably, the driving assembly includes a multi-stage telescopic rod, one end of the multi-stage telescopic rod is fixedly connected to one side of the clamping seat, the other end of the multi-stage telescopic rod is fixedly connected to one side of the bottom of the spray pad, and a support spring is fixedly connected between the two sides of the bottom of the spray pad and the side of the clamping seat. The inner wall of one end of the guard plate is fixedly connected to the inner shaft, and the two inner shafts are respectively rotatably connected to the inner walls of the two ends of the spray pad, and the outer walls of the inner shaft are fixedly connected to the inner sliders, and the outer walls of the inner sliders are slidably connected to the arc-shaped slide, and the arc-shaped slide is fixedly installed on the inner wall of the protective box.

[0009] Preferably, the loading component includes a unloading table, which is fixedly connected to one side of the protective box. A feed port is provided on one side of the protective box. A positioning block is fixedly connected to the surface of the unloading table. The top of the bottom plate is fixedly connected to an inner shaft seat. One side of the shaft rod of the inner shaft seat is fixedly connected to a balance plate 2. The top of the balance plate 2 is fixedly connected to an arc-shaped push rod. One end of the arc-shaped push rod is fixedly connected to a conical push block. A downward pressing component is provided on one side of the balance plate 2 to drive the balance plate 2 to tilt upward.

[0010] Preferably, an arc-shaped partition is fixedly connected to the top of the second balance plate, and the arc-shaped partition is located on one side of the arc-shaped push rod.

[0011] Preferably, the downward pressure assembly includes two balance plates 1, which are fixedly connected to the outer wall of the inner shaft seat shaft rod. The balance plates 1 and 2 are in a parallel and symmetrical relationship, and the outer walls of one inner rotating shaft are fixedly connected to outer ring blocks at both ends.

[0012] Preferably, a torsion spring is fixedly connected between the bottom of the second balancing plate and one side of the inner shaft seat.

[0013] Preferably, the rocking assembly includes a connecting lining, both sides of the paint box are fixedly connected with an articulated seat, the inner walls of the articulated seat are hinged with an articulated connecting rod, the end of the articulated connecting rod away from the articulated seat is hinged to the outer wall of the connecting lining, the shaft of the articulated seat is fixedly connected with a fixed rod, the top of the protective box is symmetrically fixedly connected with a fixed seat, the inner wall of the fixed seat is rotatably connected to the outer wall of the fixed rod, and a transmission assembly for driving it to rotate is provided on one side of the fixed rod.

[0014] Preferably, the transmission assembly includes two gears 1, which are respectively fixedly connected to one end of two fixed rods, the outer walls of the outer ring blocks are fixedly connected with arc-shaped connecting rods, and one end of the arc-shaped connecting rods is fixedly connected with rack plate 1, and the teeth of rack plate 1 can engage with the teeth of gear 1.

[0015] Preferably, the blanking assembly includes two gears 2, which are fixedly connected to the two ends of another inner rotating shaft, wherein the inner walls of the two arc-shaped slides are provided with outward-expanding slide grooves, wherein one side of the two arc-shaped slides is fixedly connected with a rack plate 2, and the teeth of the gear 2 can engage with the teeth of the rack plate 2.

[0016] Preferably, the top of the base plate is fixedly connected to a material receiving platform, and the material receiving platform is located on one side of the spraying pad.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The lost foam coating device described in the present invention automatically delivers a pipe to be coated onto the surface of the spray pad through a loading component, thereby realizing the automation of pipe delivery, reducing manual operations, and improving production efficiency. Since the spray pad is tilted to the right, the pipe after delivery will be close to the right guard plate, providing initial positioning for the subsequent stable rolling and accurate spraying of the pipe on the spray pad, ensuring the position accuracy of the pipe during the spraying process, allowing the pipe to enter the spraying link in a timely and accurate manner, and ensuring the continuity of the production process.

[0019] 2. The lost foam coating device described in the present invention, through a swing component, can drive multiple spray pipes to swing during the process of the pipe rolling along the inclined surface of the spray pad, so that the nozzle position of the spray pipe continues to change. Since the pipe is constantly changing in direction toward the outer wall of the spray pipe when rolling along the inclined surface, the swing component drives the spray pipe to swing, so that the nozzle is always aligned with the pipe rolling along the inclined surface of the spray pad, ensuring the continuity and accuracy of the spraying. By continuously changing the nozzle position and always aligning it with the pipe, it can be ensured that the paint is completely sprayed on the entire outer wall of the pipe, avoiding the occurrence of spraying dead corners, improving the uniformity and integrity of the pipe spraying, and thus improving the spraying quality of the pipe.

[0020] 3. The lost foam coating device described in the present invention can eliminate the restrictive effect of the left guard plate on the pipe fittings through the unloading component, so that the pipe fittings after coating continue to roll along the inclined surface and automatically leave the spraying area, making room for the next pipe fitting to be coated to enter the spraying area, thereby realizing the automation of pipe unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 It is an overall stereogram of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0024] Figure 3 This is a structural diagram of the multi-stage telescopic rod in the present invention;

[0025] Figure 4 This is a structural diagram of the arc-shaped slide in the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the spray pipe in the present invention;

[0027] Figure 6 is a schematic diagram of the structure at the receiving table in the application;

[0028] Figure 7 is a schematic diagram of the structure at the discharging table in the application;

[0029] Figure 8 is a schematic diagram of the structure at the balance plate in the application;

[0030] Figure 9 is a schematic diagram of the structure at the conical push block in the application.

[0031] In the figure: 1, base plate table; 2, protective box; 3, spraying pad; 4, clamping seat; 5, main rotating shaft; 6, paint tank; 7, discharging bin; 8, spraying pipe; 9, guard plate; 10, inner rotating shaft; 11, inner sliding block; 12, arc-shaped sliding seat; 13, outer ring block; 14, arc-shaped connecting rod; 15, rack plate one; 16, connecting lining plate; 17, hinged seat; 18, hinged connecting rod; 19, fixed rod; 20, fixed seat; 21, gear one; 22, multi-stage telescopic rod; 23, supporting spring; 24, gear two; 25, outwardly expanding sliding groove; 26, rack plate two; 28, receiving table; 29, discharging table; 30, clamping block; 31, inner shaft seat; 32, balance plate one; 33, balance plate two; 34, arc-shaped push rod; 35, arc-shaped partition plate; 36, conical push block; 37, torsional spring; 38, feeding port. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application will be further described below in combination with specific embodiments.

[0033] As shown in Figures 1 to 9 , the application provides a technical solution: a lost foam coating device, which comprises a base plate table 1, the upper part of the base plate table 1 is fixedly connected with a protective box 2, the top of the base plate table 1 is fixedly connected with a clamping seat 4, the inner wall of the clamping seat 4 is rotationally connected with a main rotating shaft 5, the inside of the protective box 2 is provided with a spraying pad 3, the inner wall center of the spraying pad 3 is fixedly connected with the outer wall of the main rotating shaft 5, the two sides of the spraying pad 3 are both provided with a guard plate 9, the top of the protective box 2 is fixedly connected with a paint tank 6, the top of the paint tank 6 is fixedly connected with a discharging bin 7, the bottom of the paint tank 6 is hingedly connected with a plurality of spraying pipes 8, the bottom of the spraying pad 3 is provided with a driving assembly for driving the spraying pad 3 to incline towards different directions, the two sides of the spraying pad 3 are respectively provided with a feeding assembly and a discharging assembly, the feeding assembly is used for putting a coating pipe on the surface of the spraying pad 3, the discharging assembly can make the pipe after coating leave the surface of the spraying pad 3, the outside of the spraying pipe 8 is provided with a swinging assembly for driving the spraying pipe 8 to swing.

[0034] During operation: first, the evenly mixed paint is added to the interior of the paint box 6 through the lower hopper 7 for standby use. The entire spraying process is carried out inside the protective box 2, which can avoid paint splashing and eliminate certain hidden dangers. During specific use, the spraying pad 3 is kept in a horizontal state in the initial state. The spraying pad 3 is first tilted by the driving component. At this time, the tilted surface of the spraying pad 3 faces the feeding component, and when the right side of the spraying pad 3 (the side close to the feeding component) is tilted downward, the feeding component will be triggered to move, and the feeding component can move a The pipe to be painted is placed on the surface of the spray pad 3 (the pipe will be placed horizontally on the surface of the spray pad 3), and because the spray pad 3 remains tilted to the right at this time, the pipe leans against one side of the right guard plate 9, and then the driving component drives the spray pad 3 to return to a horizontal state. At this time, the pipe still leans against one side of the right guard plate 9 of the spray pad 3, and then the driving component drives the spray pad 3 to slowly tilt to the left (the side close to the blanking component). During the gradual tilting process, the pipe rolls along the inclined surface of the spray pad 3;

[0035] At the same time, in the initial state, the multiple spraying tubes 8 are in an inclined state. When the pipe fittings are leaning against one side of the guard plate 9 on the right side of the spraying pad 3, the nozzles of the spraying tubes 8 are precisely aligned with the outer wall surface of the pipe fittings. When the pipe fittings roll along the inclined surface of the spraying pad 3, the multiple spraying tubes 8 can be driven to swing by the swinging assembly, so that the nozzle positions of the spraying tubes 8 can be changed at all times, and they can still face the pipe fittings rolling along the inclined surface of the spraying pad 3, so that the paint can be completely sprayed on the outer wall of the pipe fittings. Moreover, since the pipe fittings roll along the inclined surface of the spraying pad 3, the outer wall facing the spraying tube 8 will continue to change, and with the swinging movement of the spraying tube 8, the entire outer wall of the entire pipe fitting can be sprayed during the rolling process along the inclined surface, thereby completing the entire spraying process.

[0036] When the pipe rolls to the left side of the spraying pad 3, it will stop on one side of the left guard plate 9. At this time, after the pipe and the paint are fused for a period of time, the driving component continues to drive the spraying pad 3 to tilt to the left. During this process, the blanking component will be triggered, and the blanking component will cancel the restriction of the left guard plate 9 on the pipe, so that the pipe continues to roll along the inclined surface of the spraying pad 3 and leave the spraying area; then the spraying pad 3 returns to a horizontal state and tilts to the right to start the next round of spraying, and the cycle continues.

[0037] Through the above embodiment, a pipe to be painted is automatically placed on the surface of the spray pad 3 through the feeding component, so as to realize the automation of pipe placement, reduce manual operation and improve production efficiency. Since the spray pad 3 is tilted to the right, the pipe after placement will be close to the right guard plate 9, providing initial positioning for the stable rolling and accurate spraying of subsequent pipes on the spray pad 3, ensuring the position accuracy of the pipe during the spraying process, so that the pipe can enter the spraying link in a timely and accurate manner, ensuring the continuity of the production process; through the swing component, in the process of the pipe rolling along the inclined surface of the spray pad 3, the swing component can drive multiple spray pipes 8 to swing, so that the nozzle position of the spray pipe 8 changes continuously. When rolling along the inclined surface, the outer wall of the spraying pipe 8 facing the spraying pipe 8 will continuously change. The swing component drives the spraying pipe 8 to swing, so that the nozzle can always be aimed at the pipe fitting rolling along the inclined surface of the spraying pad 3, ensuring the continuity and accuracy of the spraying. By continuously changing the nozzle position and always aiming at the pipe fitting, it can be ensured that the paint is sprayed completely on the entire outer wall of the pipe fitting, avoiding the occurrence of dead angles in spraying, improving the uniformity and integrity of the spraying of the pipe fitting, and thus improving the spraying quality of the pipe fitting; through the blanking component, the restrictive effect of the left guard plate 9 on the pipe fitting can be eliminated, so that the pipe fitting after the coating is completed continues to roll along the inclined surface and automatically leaves the spraying area, making room for the next pipe fitting to be coated to enter the spraying area, thereby realizing the automation of pipe blanking;

[0038] In addition, it should be noted that the spray pad 3 needs to be made of a material that is not easy to adhere to paint to avoid the paint adhering to the surface of the spray pad 3 after spraying, and the length that the pipe can roll on the inclined surface of the spray pad 3 needs to be greater than or equal to the circumferential length of the pipe to ensure full spraying.

[0039] like Figures 2 to 3 As shown, the driving assembly includes a multi-stage telescopic rod 22, one end of the multi-stage telescopic rod 22 is fixedly connected to one side of the clamping seat 4, and the other end of the multi-stage telescopic rod 22 is fixedly connected to one side of the bottom of the spray pad 3, and a support spring 23 is fixedly connected between the two sides of the bottom of the spray pad 3 and the side of the clamping seat 4. The inner wall of one end of the guard plate 9 is fixedly connected with an inner rotating shaft 10, and the two inner rotating shafts 10 are respectively rotatably connected to the inner walls of the two ends of the spray pad 3, and the outer walls of the inner rotating shaft 10 are fixedly connected with inner sliders 11 on both sides, and the outer walls of the inner sliders 11 are slidably connected with arc-shaped slides 12, and the arc-shaped slides 12 are fixedly installed on the inner wall of the protective box 2.

[0040] During operation: when the multi-stage telescopic rod 22 is not extended or retracted, the spraying pad 3 remains in a horizontal state, which is the starting position for the spraying operation. The inner rotating shaft 10 is fixed to the inner wall of one end of the guard plate 9 and is rotatably connected to the inner walls of both ends of the spraying pad 3. At this time, the inner slider 11 is located in the middle position of the arc-shaped slide seat 12, providing support and guidance for the subsequent tilting and rotation of the spraying pad 3; when the multi-stage telescopic rod 22 is extended, the spraying pad 3 tilts to the right to facilitate loading. When the multi-stage telescopic rod 22 is restored and retracted, the spraying pad 3 tilts to the left. During this process, the pipe will roll along the surface of the spraying pad 3, completing the spraying and subsequent unloading operations in sequence. The support spring 23 provided can provide stability for the tilting action of the spray pad 3. When the spray pad 3 tilts, the inner rotating shafts 10 on both sides will drive the inner slider 11 to slide along the inner wall of the arc-shaped slide 12. Due to the mutual restriction of the inner slider 11 and the arc-shaped slide 12, even if the pipe fitting has completed spraying and the inner slider 11 is still located in the inner wall of the arc-shaped slide 12, under the restriction of the arc-shaped slide 12, the thrust generated by the pipe fitting touching the left guard plate 9 cannot cause the guard plate 9 to articulate and rotate with the inner rotating shaft 10 as the center axis. When the degree of tilt is not large, the pipe fitting can lean steadily on one side of the left guard plate 9 to carry out the fusion process of the paint and the pipe fitting.

[0041] like Figures 7 to 9 As shown, the loading assembly includes a loading platform 29, which is fixedly connected to one side of the protective box 2. A feed port 38 is provided on one side of the protective box 2. A positioning block 30 is fixedly connected to the surface of the loading platform 29. The top of the bottom plate 1 is fixedly connected to an inner shaft seat 31. One side of the shaft of the inner shaft seat 31 is fixedly connected to a balance plate 2 33. The top of the balance plate 2 33 is fixedly connected to an arc-shaped push rod 34. One end of the arc-shaped push rod 34 is fixedly connected to a conical push block 36. A downward pressing assembly is provided on one side of the balance plate 2 33 for driving the balance plate 2 33 to tilt upward.

[0042] During operation: first, multiple pipe fittings to be tested are placed on the surface of the unloading platform 29 in turn. Due to the limitation of the positioning block 30, the pipe fittings cannot roll down along the inclined surface of the unloading platform 29, but stop at each other in turn and stop on the side of the positioning block 30. When the spray pad 3 tilts to the right, it will drive the downward pressure component to move. The downward pressure component causes the balance plate 2 33 to rotate and tilt around the shaft of the inner shaft seat 31. When the balance plate 2 33 tilts upward, it will drive the arc push rod 34 to move. The arc push rod 34 supports the bottom of the first pipe fitting through the conical push block 36, lifts it downward, makes it pass over the side wall of the positioning block 30, and then continues to slide along the inclined surface of the unloading platform 29, and finally falls onto the surface of the spray pad 3 through the feed port 38. At this time, because the spray pad 3 tilts to the right, the pipe fitting will stop on one side of the right guard plate 9 under the action of gravity until the spray pad 3 returns to a horizontal state.

[0043] like Figures 7 to 9As shown, a curved partition 35 is fixedly connected to the top of the second balance plate 33 , and the curved partition 35 is located on one side of the curved push rod 34 .

[0044] During operation: when the balance plate 2 33 tilts upward, it will synchronously drive the arc partition 35 to move. When the arc partition 35 moves synchronously, it will be inserted into the gap between the two pipes to block the second pipe and prevent it from accidentally sliding down with the first pipe.

[0045] like Figures 7 to 9 As shown, the pressing assembly includes two balancing plates 32, which are fixedly connected to the outer wall of the shaft of the inner shaft seat 31. The balancing plates 1 32 and 33 are in a parallel and symmetrical relationship, and the outer ring blocks 13 are fixedly connected at both ends of the outer wall of one of the inner rotating shafts 10.

[0046] During operation: when the spray pad 3 tilts to the right to a certain angle, the inner rotating shaft 10 will rotate synchronously with the rotation of the spray pad 3, thereby driving the outer ring blocks 13 fixed at both ends of its outer wall to move. The outer ring blocks 13 gradually fit into the surface of the balance plate 1 32 during the rotation. At this time, since the outer ring blocks 13 have a certain weight and downward pressure tendency, when it continues to tilt, the outer ring blocks 13 will exert downward pressure on the balance plate 1 32, causing the balance plate 1 32 to rotate downward with the shaft of the inner shaft seat 31 as the center. Since the balance plate 1 32 and the balance plate 2 33 are connected to the shaft of the inner shaft seat 31 at the same time, according to the lever principle, when the balance plate 1 32 rotates downward, it will drive the balance plate 2 33 to tilt upward in the opposite direction. After the balance plate 2 33 tilts upward, the pipe fittings will not be hindered by the positioning blocks 30 and slide onto the surface of the spray pad 3.

[0047] like Figure 9 As shown, a torsion spring 37 is fixedly connected between the bottom of the second balancing plate 33 and one side of the inner shaft seat 31 .

[0048] During operation: when the balance plate 2 33 tilts upward, the torsion spring 37 will be stretched and deformed, and when the spray pad 3 tilts to the right to complete the unloading movement, it will first return to a horizontal state. At this time, the outer ring block 13 is no longer in contact with the balance plate 1 32, and the balance plate 2 33 is automatically reset under the action of the torsion spring 37, and the second pipe will replace the position of the previous pipe, waiting for the loading work of the next wheel.

[0049] like Figure 2 and Figure 5As shown, the rocking assembly includes a connecting lining 16, and both sides of the paint box 6 are fixedly connected with an articulated seat 17, the inner walls of the articulated seat 17 are hinged with an articulated connecting rod 18, and the end of the articulated connecting rod 18 away from the articulated seat 17 is hinged to the outer wall of the connecting lining 16, and the shaft of the articulated seat 17 is fixedly connected with a fixed rod 19. The top of the protective box 2 is symmetrically fixedly connected with a fixed seat 20, and the inner wall of the fixed seat 20 is rotatably connected to the outer wall of the fixed rod 19. A transmission assembly for driving the fixed rod 19 to rotate is provided on one side of the fixed rod 19.

[0050] During operation: when the spray pad 3 tilts to the left, the pipe rolls along the inclined surface of the spray pad 3, and in this process, the transmission assembly will first rotate the fixed rod 19. When the fixed rod 19 rotates, it will drive the hinge connecting rod 18 through the shaft of the hinge seat 17 to swing around the shaft of the hinge seat 17. Since the hinge point of the spray pipe 8 and the paint box 6 is at the same point as the fixed rod 19, the connecting liner 16 can drive the spray pipe 8 and the bottom of the paint box 6 to rotate, thereby achieving a swinging effect. During swinging, the nozzle position of the spray pipe 8 continues to change, and the nozzle can always be aligned with the pipe rolling along the inclined surface of the spray pad 3, thereby ensuring the continuity and accuracy of the spraying.

[0051] like Figures 3 and 4 As shown, the transmission assembly includes two gears 21, and the two gears 21 are fixedly connected to one end of the two fixed rods 19 respectively. The outer wall of the outer ring block 13 is fixedly connected with an arc-shaped connecting rod 14, and one end of the arc-shaped connecting rod 14 is fixedly connected with a rack plate 15. The teeth of the rack plate 15 can engage with the teeth of the gear 21.

[0052] During operation: when the spray pad 3 tilts to the left, the inner slider 11 on the right will slide upward along the inner wall of the arc-shaped slide seat 12. At this time, the inner slider 11 will drive the rack plate 15 to engage with the teeth of the gear 1 21 through the outer ring block 13 and the arc-shaped connecting rod 14, thereby causing the gear 1 21 to rotate. The rotation of the gear 1 21 can eventually cause multiple spray tubes 8 to swing.

[0053] like Figures 4 and 5 As shown, the blanking assembly includes two gears 24, which are fixedly connected to the two ends of another inner rotating shaft 10, wherein the inner walls of the two arc-shaped slides 12 are provided with outward-expanding slide grooves 25, wherein one side of the two arc-shaped slides 12 is fixedly connected with a rack plate 26, and the teeth of the gear 24 can engage with the teeth of the rack plate 26.

[0054] During operation: When the spray pad 3 is tilted to a certain angle, the pipe fitting has completed spraying and is leaning on one side of the left guard plate 9. At this time, the spray pad 3 continues to expand the tilt angle to the left. At this time, the inner slider 11 on the left will slide into the inner wall of the outward expansion slot 25, releasing the restriction of the inner wall of the arc-shaped slide 12, and the gear 2 24 will engage with the rack plate 2 26 when continuing to tilt, so that the inner rotating shaft 10 rotates. After the inner rotating shaft 10 rotates, it will drive the left guard plate 9 to rotate. After rotation, the guard plate 9 will maintain a parallel relationship with the spray pad 3, so that the pipe fitting can no longer be docked, and the pipe fitting can slide out along the inclined surface under the action of gravity.

[0055] like Figure 6 As shown, a material receiving platform 28 is fixedly connected to the top of the base plate 1 , and the material receiving platform 28 is located on one side of the spraying pad 3 .

[0056] During operation: When the spray pad 3 tilts to the left and can remain parallel to the guard plate 9, the guard plate 9 will overlap with the inner groove opening of the receiving table 28, and the pipes will slide along the inclined surfaces of the spray pad 3 and the guard plate 9 to the surface of the receiving table 28 for collection.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A lost foam coating device, comprising a base plate, characterized in that: The top of the base plate is fixedly connected to a protection box, the top of the base plate is fixedly connected to a clamping seat, the inner wall of the clamping seat is rotatably connected to the main rotating shaft, a spray pad is provided inside the protection box, the center of the inner wall of the spray pad is fixedly connected to the outer wall of the main rotating shaft, guard plates are provided on both sides of the spray pad, the top of the protection box is fixedly connected to a paint box, the top of the paint box is fixedly connected to a discharge bin, a plurality of spray pipes are hingedly connected to the bottom of the paint box, a driving assembly that drives the spray pad to tilt in different directions is provided at the bottom of the spray pad, a loading assembly and a unloading assembly are respectively provided on both sides of the spray pad, the loading assembly is used to put paint pipe fittings onto the surface of the spray pad, and the unloading assembly can move the pipe fittings after the paint is completed away from the surface of the spray pad, and a swing assembly that drives the spray pipe to swing is provided on the outside of the spray pipe; The driving assembly includes a multi-stage telescopic rod, one end of the multi-stage telescopic rod is fixedly connected to one side of the clamping seat, the other end of the multi-stage telescopic rod is fixedly connected to one side of the bottom of the spraying pad, and a support spring is fixedly connected between the two sides of the bottom of the spraying pad and the side of the clamping seat. The inner wall of one end of the guard plate is fixedly connected to an inner rotating shaft, and the two inner rotating shafts are respectively rotatably connected to the inner walls of the two ends of the spraying pad. The outer walls of the inner rotating shaft are fixedly connected to inner sliders on both sides, and the outer walls of the inner sliders are slidably connected to arc-shaped slides, which are fixedly mounted on the inner wall of the protective box; The loading assembly includes a loading platform, which is fixedly connected to one side of the protective box, a feeding port is opened on one side of the protective box, a positioning block is fixedly connected to the surface of the loading platform, the top of the bottom plate is fixedly connected to the inner shaft seat, one side of the shaft rod of the inner shaft seat is fixedly connected to the balance plate 2, the top of the balance plate 2 is fixedly connected to the arc-shaped push rod, one end of the arc-shaped push rod is fixedly connected to the conical push block, and a downward pressing assembly for driving the balance plate 2 to tilt upward is provided on one side of the balance plate 2; The swing assembly includes a connecting liner, both sides of the paint box are fixedly connected with an articulated seat, the inner wall of the articulated seat is hinged with an articulated connecting rod, the end of the articulated connecting rod away from the articulated seat is hinged to the outer wall of the connecting liner, the shaft of the articulated seat is fixedly connected to the fixed rod, the top of the protective box is symmetrically fixedly connected with the fixed seat, the inner wall of the fixed seat is rotatably connected to the outer wall of the fixed rod, and a transmission assembly for driving the fixed rod to rotate is provided on one side of the fixed rod; The transmission assembly includes two gears 1, which are respectively fixedly connected to one end of two fixed rods. The outer walls of the outer ring blocks are fixedly connected with arc-shaped connecting rods, and one end of the arc-shaped connecting rods is fixedly connected with rack plate 1. The teeth of rack plate 1 can mesh with the teeth of gear 1.

2. The lost foam coating device according to claim 1, characterized in that: The top of the second balance plate is fixedly connected with an arc-shaped partition, which is located on one side of the arc-shaped push rod.

3. The lost foam coating device according to claim 2, characterized in that: The downward pressure component includes two balance plates, which are fixedly connected to the outer wall of the inner shaft seat shaft. The balance plates are parallel and symmetrical to each other, and the outer walls of one inner rotating shaft are fixedly connected with outer ring blocks at both ends.

4. The lost foam coating device according to claim 3, characterized in that: A torsion spring is fixedly connected between the bottom of the second balancing plate and one side of the inner shaft seat.

5. The lost foam coating device according to claim 4, characterized in that: The blanking assembly includes two gears 2, which are fixedly connected to the two ends of another inner rotating shaft. The inner walls of the two arc-shaped slides are provided with outward-expanding slide grooves, and one side of the two arc-shaped slides is fixedly connected to a rack plate 2, and the teeth of the gear 2 can engage with the teeth of the rack plate 2.

6. The lost foam coating device according to claim 5, characterized in that: The top of the base plate is fixedly connected with a material receiving platform, which is located on one side of the spraying pad.

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