A spraying device for energy-saving coatings for industrial furnaces

Abstract

The invention discloses a spraying device for energy-saving coatings for industrial furnaces and kilns, the structure of which comprises a transmission box, a spray barrel, a working box and a placement door, the lower end of the spray barrel is embedded and connected to the upper end of the working box, the rear end of the placement door is riveted and connected to the front end of the working box, the lower end of the working box is bolted to the upper end of the base, the equipment is powered on, the placement door is opened, the parts to be sprayed are placed in the working box for clamping, the transmission box is driven, the residual material contacts the guide groove on the inner side of the top plate along the clamping ring, so that the residual material is squeezed toward the spring plate and the guide plate under the guidance of the clamping plate and the arc groove, so that the guide strip is contracted, and the guide strip pushes the arc block on the outer side of the clamping block, so that the arc block abuts against the pressure strip and is tightly fixed on the abutting groove on the inner side of the clamping block, so as to prevent the residual material from floating back and covering the side of the part, so that the side surface of the part is covered with coating in advance, so that the covering thickness of the outer surface is changed, and the size of the processed part is changed.

Description

Technical Field

[0001] The invention belongs to the technical field of pollution prevention and control of industrial furnaces, and in particular relates to spraying equipment for energy-saving coatings for industrial furnaces. Background Art

[0002] Industrial furnace energy-saving paint is a high-temperature resistant and corrosion-resistant composite pigment. It needs to be rotary sprayed on the surface of parts through the spray gun in the spraying equipment. The thickness of the parts sprayed is uniform, so that the parts can be better used.

[0003] Based on the above description, the inventors found that the existing spraying equipment for energy-saving coatings for industrial furnaces has the following main deficiencies. For example, when the spray gun sprays parts, the paint in the spray gun is pushed by air pressure and sprayed onto the single-sided surface of the part. As the concave and convex surfaces of the parts are inconsistent when rotating, the paint will float and expand outward after contacting the curved surface of the parts, covering the side of the parts, causing the side surfaces of the parts to be covered with paint in advance, so that the covering thickness of the outer surface is changed, resulting in changes in the size of the parts after processing. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a spraying device for energy-saving coatings for industrial furnaces to solve the problems of the prior art.

[0005] The technical solution adopted by the present invention to achieve the technical purpose is: this is a spraying equipment for energy-saving paint for industrial furnaces, whose structure includes a base, a transmission box, a spray barrel, a working box, and a placement door. The upper end of the base is connected to the lower end of the transmission box by a stud, the lower end of the spray barrel is embedded and connected to the upper end of the working box, the rear end of the placement door is riveted to the front end of the working box, and the lower end of the working box is bolted to the upper end of the base.

[0006] As a further improvement of the present invention, a support plate, a guide device, a support column, a collecting device, and a clamping ring are provided in the spray barrel. The front end of the support plate is welded to the rear end of the clamping ring, the outer side of the guide device is fitted with the inner side of the clamping ring, the support column is provided between the clamping rings for supporting cooperation, the front end of the collecting device is fitted with the rear end of the guide device, the rear end of the support plate is embedded and connected to the front end of the working box, and four clamping blocks are provided at the outer corners of the support plate, which are symmetrically distributed.

[0007] As a further improvement of the present invention, the guide device is provided with a guide groove, a baffle, a top plate, and a guide port. The outer side of the guide groove is fixed to the inner side of the top plate. The baffle is arranged between the guide grooves. The guide port and the guide groove are an integrated structure. The outer side of the baffle is welded to the inner side of the clamping ring, the outer side of the top plate is fixed to the inner side of the clamping ring, the outer side of the guide groove is embedded in the inner side of the clamping ring, and the baffle is arc-shaped. Four baffles are provided and distributed in a ring.

[0008] As a further improvement of the present invention, a guide plate, an arc groove, a clamping plate, a pressure plate and a spring plate are provided in the guide groove. The lower end of the guide plate is engaged with the upper end of the pressure plate. The outer side of the arc groove is welded and connected to the inner side of the clamping plate. The lower end of the pressure plate is riveted to the upper end of the arc groove. The outer side of the spring plate is embedded and connected to the inner side of the clamping plate. The lower end of the clamping plate is fixed to the upper end of the top plate. Two spring plates are provided and are symmetrically distributed. The spring plates are made of rubber and are elastic.

[0009] As a further improvement of the present invention, an arc plate, a groove, a clamping block and a pressure strip are provided in the guide plate. The lower end of the arc plate is embedded and connected to the upper end of the pressure strip. The groove and the clamping block are an integrated structure. The inner side of the clamping block is riveted and connected to the outer side of the pressure strip. The rear end of the arc plate is fitted with the front end of the groove. The lower end of the clamping block is engaged with the upper end of the pressure plate. The middle of the arc plate is convex.

[0010] As a further improvement of the present invention, the arc plate is provided with guide bars, arc blocks and clamping blocks. The rear end of the guide bar is fixed to the front end of the clamping block, the inner side of the arc block is connected to the outer side of the clamping block, the lower end of the arc block is embedded and connected to the upper end of the pressure strip, two guide bars are provided, which are symmetrically distributed, and six small holes are provided on the guide bar, which are vertically symmetrically distributed.

[0011] As a further improvement of the present invention, the collecting device is provided with a collecting box, a guide ring, a clamping ring, a block and a collecting port. The outer side of the collecting box is embedded and connected to the inner side of the clamping ring, the front end of the guide ring is fitted with the rear end of the block, the inner side of the clamping ring is fixedly connected to the outer side of the guide ring, the outer side of the block is clamped to the inner side of the clamping ring, the collecting port and the guide ring are an integrated structure, the outer side of the clamping ring is fixed to the inner side of the clamping ring, and four blocks are provided and distributed in a ring shape.

[0012] As a further improvement of the present invention, the collection box is provided with a card plate, a collection groove, an arc bar, a support block and a top column. The rear end of the card plate is embedded in the front end of the support block, the inner side of the collection groove is welded to the outer side of the arc bar, the inner side of the arc bar is riveted to the outer side of the top column, the outer side of the support block is clamped to the inner side of the top column, the rear end of the collection groove is embedded in the front end of the clamping ring, and the top column is provided with two, which are symmetrically inclined.

[0013] As a further improvement of the present invention, the card plate is provided with a spring block, a connecting block, a telescopic column and a guide block. The rear end of the spring block is fitted with the front end of the guide block, the outer side of the connecting block is fixed to the inner side of the guide block, the outer side of the telescopic column is riveted to the inner side of the connecting block, the rear end of the guide block is embedded and connected to the front end of the support block, two spring blocks are provided and are symmetrically distributed. The spring blocks are made of plastic fiber material and have high elasticity and high toughness.

[0014] The beneficial effects of the present invention are:

[0015] 1. Power on the equipment, open the placement door, place the parts to be sprayed in the working box for clamping, and drive the transmission box to transmit the paint so that the paint is sprayed on the parts to cover them. After the paint contacts the parts, it flies and flies to the collecting device under the guidance of the guide device. The residual material contacts the guide groove on the inner side of the top plate along the clamping ring, so that the residual material is squeezed toward the spring plate and the guide plate under the guidance of the clamping plate and the arc groove, so that the guide strip shrinks, and the guide strip pushes the arc block on the outside of the clamping block, so that the arc block is against the pressure strip and fixed tightly on the groove on the inside of the clamping block to prevent the residual material from floating back and covering the side of the part, causing the side surface of the part to be covered with paint in advance, so that the covering thickness of the outer surface is changed, and the size of the processed part changes.

[0016] 2. When the residual material moves into the collecting device along the guiding device, the residual material spreads to the inside of the collecting box along the guide ring and the retaining ring, so that the residual material enters the collecting groove for collection, and the residual material is squeezed along the top column on the inner side of the arc strip toward the clamping plate at the front end of the supporting block, so that the spring block contracts and presses against the connecting block and the guide block at the rear end of the telescopic column for support. The spring block rebounds and shakes off the residual material into the collecting groove for accumulation and collection, so as to prevent the residual material from accumulating and falling on the parts to form a cover, thereby destroying the spraying thickness on the surface of the parts and affecting the spraying thickness of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a spraying device for energy-saving coatings for industrial furnaces of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the spray barrel of the present invention from a top view;

[0020] Figure 3 It is a structural schematic diagram of the guide device of the present invention from the front view;

[0021] Figure 4 It is a structural schematic diagram of the guide groove of the present invention from the front view;

[0022] Figure 5 It is a structural schematic diagram of the guide plate of the present invention viewed from the front;

[0023] Figure 6 This is a schematic structural diagram of the arc plate of the present invention from the front view;

[0024] Figure 7 It is a schematic structural diagram of the collecting device of the present invention from the front view;

[0025] Figure 8 It is a schematic structural diagram of a side view of a collecting box of the present invention;

[0026] Fig. 9 This is a schematic structural diagram of the front view of the card board of the present invention;

[0027] In the figure: base 1, transmission box 2, spray barrel 3, working box 4, placement door 5, support plate 31, guide device 32, support column 33, collection device 34, clamp ring 35, guide groove 321, baffle plate 322, top plate 323, guide port 324, guide plate a1, arc groove a2, clamp plate a3, pressure plate a4, spring plate a5, arc plate a11, support groove a12, clamping block-a13, pressure strip-a14, guide bar-b1, arc block-b2, clamping block-b3, collecting box-341, guide ring-342, clamping ring-343, stopper-344, collecting port-345, clamping plate-c1, collecting groove-c2, arc bar-c3, supporting block-c4, top column-c5, spring block-c11, connecting block-c12, telescopic column-c13, guide block-c14. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Example 1

[0030] As attached Figure 1 To Attachment Figure 6 As shown:

[0031] The present invention provides a spraying device for energy-saving paint for industrial furnaces, which structure includes a base 1, a transmission box 2, a spray barrel 3, a working box 4, and a placement door 5. The upper end of the base 1 is connected to the lower end of the transmission box 2 by a stud, the lower end of the spray barrel 3 is embedded and connected to the upper end of the working box 4, the rear end of the placement door 5 is riveted to the front end of the working box 4, and the lower end of the working box 4 is bolted to the upper end of the base 1.

[0032] Among them, the spray barrel 3 is provided with a support plate 31, a guide device 32, a support column 33, a collecting device 34, and a clamping ring 35. The front end of the support plate 31 is welded to the rear end of the clamping ring 35, the outer side of the guide device 32 is fitted with the inner side of the clamping ring 35, the support column 33 is arranged between the clamping rings 35 for support and cooperation, the front end of the collecting device 34 is fitted with the rear end of the guide device 32, and the rear end of the support plate 31 is embedded and connected to the front end of the working box 4. Four blocks are provided at the outer corners of the support plate 31, which are symmetrically distributed, so that the guide device 32 and the collecting device 34 at the front end of the support plate 31 can maintain balance.

[0033] Among them, the guide device 32 is provided with a guide groove 321, a baffle 322, a top plate 323, and a guide port 324. The outer side of the guide groove 321 is fixed to the inner side of the top plate 323. The baffle 322 is arranged between the guide grooves 321. The guide port 324 and the guide groove 321 are an integrated structure. The outer side of the baffle 322 is welded to the inner side of the clamping ring 35, the outer side of the top plate 323 is fixed to the inner side of the clamping ring 35, and the outer side of the guide groove 321 is embedded in the inner side of the clamping ring 35. The baffle 322 is arc-shaped, and four are provided, which are distributed in a ring shape to prevent the paint from expanding outward.

[0034] Among them, the guide groove 321 is provided with a guide plate a1, an arc groove a2, a clamping plate a3, a pressure plate a4, and a spring plate a5. The lower end of the guide plate a1 is engaged with the upper end of the pressure plate a4, the outer side of the arc groove a2 is welded and connected to the inner side of the clamping plate a3, the lower end of the pressure plate a4 is riveted to the upper end of the arc groove a2, the outer side of the spring plate a5 is embedded and connected to the inner side of the clamping plate a3, the lower end of the clamping plate a3 is fixed to the upper end of the top plate 323, and two spring plates a5 are provided, which are symmetrically distributed. The spring plates a5 are made of rubber and have elasticity, so that after the paint squeezes the spring plates a5, the spring plates can effectively shake off the paint.

[0035] Among them, the guide plate a1 is provided with an arc plate a11, a groove a12, a clamping block a13, and a pressure strip a14. The lower end of the arc plate a11 is embedded and connected to the upper end of the pressure strip a14. The groove a12 and the clamping block a13 are an integrated structure. The inner side of the clamping block a13 is riveted and connected to the outer side of the pressure strip a14. The rear end of the arc plate a11 is fitted with the front end of the groove a12. The lower end of the clamping block a13 is clamped on the upper end of the pressure plate a4. The middle of the arc plate a11 is convex, so that the paint can flow and spray along both sides of the arc plate a11.

[0036] Among them, the arc plate a11 is provided with a guide bar b1, an arc block b2, and a clamping block b3. The rear end of the guide bar b1 is fixed to the front end of the clamping block b3, the inner side of the arc block b2 is connected to the outer side of the clamping block b3, and the lower end of the arc block b2 is embedded and connected to the upper end of the pressure strip a14. There are two guide bars b1, which are symmetrically distributed. There are six small holes on the guide bar b1, which are vertically symmetrically distributed, so that the paint can be sprayed toward the equipment in the industrial furnace along the guidance of the guide bar b1.

[0037] The specific usage and function of this embodiment are as follows:

[0038] In the present invention, the equipment is powered on, the placement door 5 is opened, the parts to be sprayed are placed in the working box 4 for clamping, and the transmission box 2 is driven to spray the paint on the parts to cover them. After the paint contacts the parts, it flies away and flies toward the collecting device 34 under the guidance of the guide device 32. The residual material contacts the guide groove 321 on the inner side of the top plate 323 along the clamping ring 35, so that the residual material is squeezed toward the spring plate a5 and the guide plate a1 under the guidance of the clamping plate a3 and the arc groove a2, so that the guide bar b1 shrinks, and the guide bar b1 pushes the arc block b2 on the outer side of the clamping block b3, so that the arc block b2 abuts against the pressure strip a14 and is tightly attached to the abutting groove a12 on the inner side of the clamping block a13 for fixation, so as to prevent the residual material from floating back and covering the side of the part, causing the side surface of the part to be covered with paint in advance, so that the covering thickness of the outer surface is changed, and the size of the processed part changes.

[0039] Example 2

[0040] As attached Figure 7 To Attachment Fig. 9 As shown:

[0041] The present invention provides a spraying device for energy-saving paint for industrial furnaces. The collecting device 34 is provided with a collecting box 341, a guide ring 342, a clamping ring 343, a stopper 344, and a collecting port 345. The outer side of the collecting box 341 is embedded and connected to the inner side of the clamping ring 343. The front end of the guide ring 342 fits with the rear end of the stopper 344. The inner side of the clamping ring 343 is fixedly connected to the outer side of the guide ring 342. The outer side of the stopper 344 is clamped to the inner side of the clamping ring 343. The collecting port 345 and the guide ring 342 are an integrated structure. The outer side of the clamping ring 343 is fixed to the inner side of the clamping ring 35. Four stoppers 344 are provided and distributed in a ring shape, so that the collecting box 341 will not be offset after being squeezed by residual materials.

[0042] Among them, the collection box 341 is provided with a card plate c1, a collection groove c2, an arc bar c3, a support block c4, and a top column c5. The rear end of the card plate c1 is embedded in the front end of the support block c4, the inner side of the collection groove c2 is welded and connected to the outer side of the arc bar c3, the inner side of the arc bar c3 is riveted and connected to the outer side of the top column c5, the outer side of the support block c4 is clamped on the inner side of the top column c5, the rear end of the collection groove c2 is embedded in the front end of the clamping ring 343, and two top columns c5 are provided, which are symmetrically inclined, so that the card plate c1 can be tightly attached to the front end of the collection groove c2 and remain fixed.

[0043] Among them, the clamping plate c1 is provided with a spring block c11, a connecting block c12, a telescopic column c13, and a guide block c14. The rear end of the spring block c11 is fitted with the front end of the guide block c14. The outer side of the connecting block c12 is fixed to the inner side of the guide block c14. The outer side of the telescopic column c13 is riveted to the inner side of the connecting block c12. The rear end of the guide block c14 is embedded and connected to the front end of the support block c4. Two spring blocks c11 are provided and are symmetrically distributed. The spring block c1 is made of plastic fiber material with high elasticity and high toughness, so that the residual material generated during spraying will not adhere to the spring block c1 after being collected.

[0044] The specific usage and function of this embodiment are as follows:

[0045] In the present invention, when the residual material moves into the collecting device 34 along the guide device 32, the residual material spreads toward the inner side of the collecting box 341 along the guide of the guide ring 342 and the retaining ring 343, so that the residual material enters the collecting groove c2 for collection, and the residual material is squeezed toward the retaining plate c1 at the front end of the supporting block c4 along the top column c5 on the inner side of the arc bar c3, so that the spring block c11 contracts and presses against the guide block c14 at the rear end of the connecting block c12 and the telescopic column c13 for support, and the spring block c11 rebounds to shake off the residual material into the collecting groove c2 for accumulation and collection, thereby preventing the residual material from accumulating and falling on the parts to form a cover, thereby destroying the spraying thickness on the surface of the parts and affecting the spraying thickness of the parts.

[0046] The present invention solves the problems of the prior art. The present invention combines the above-mentioned components to prevent residual materials from floating back and covering the side of the part, causing the side surface of the part to be covered with paint in advance, so that the covering thickness of the outer surface is changed, causing the size of the processed part to change, and preventing residual materials from accumulating and falling on the part to form a cover, causing the spraying thickness of the part surface to be destroyed, causing the spraying thickness of the part to be affected.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A spraying device for energy-saving coatings for industrial furnaces, comprising a base (1), a transmission box (2), a spray barrel (3), a working box (4), and a placement door (5), wherein the upper end of the base (1) is connected to the lower end of the transmission box (2) by a stud, the lower end of the spray barrel (3) is embedded and connected to the upper end of the working box (4), the rear end of the placement door (5) is riveted to the front end of the working box (4), and the lower end of the working box (4) is bolted to the upper end of the base (1); characterized in that: The spray barrel (3) is provided with a support plate (31), a guide device (32), a support column (33), a collection device (34), and a clamping ring (35); the front end of the support plate (31) is welded to the rear end of the clamping ring (35); the outer side of the guide device (32) is fitted with the inner side of the clamping ring (35); the support column (33) is arranged between the clamping rings (35) for support cooperation; the front end of the collection device (34) is fitted with the rear end of the guide device (32); and the rear end of the support plate (31) is embedded and connected to the front end of the working box (4); The guide device (32) is provided with a guide groove (321), a baffle (322), a top plate (323), and a guide opening (324); the outer side of the guide groove (321) is fixed to the inner side of the top plate (323); the baffle (322) is arranged between the guide grooves (321); the guide opening (324) and the guide groove (321) are an integrated structure; the outer side of the baffle (322) is welded to the inner side of the clamping ring (35); the outer side of the top plate (323) is fixed to the inner side of the clamping ring (35); and the outer side of the guide groove (321) is embedded in the inner side of the clamping ring (35); The guide groove (321) is provided with a guide plate (a1), an arc groove (a2), a clamping plate (a3), a pressure plate (a4), and a spring plate (a5); the lower end of the guide plate (a1) is engaged with the upper end of the pressure plate (a4); the outer side of the arc groove (a2) is welded to the inner side of the clamping plate (a3); the lower end of the pressure plate (a4) is riveted to the upper end of the arc groove (a2); the outer side of the spring plate (a5) is embedded and connected to the inner side of the clamping plate (a3); the lower end of the clamping plate (a3) ​​is fixed to the upper end of the top plate (323); The guide plate (a1) is provided with an arc plate (a11), a groove (a12), a clamping block (a13), and a pressure strip (a14); the lower end of the arc plate (a11) is embedded and connected to the upper end of the pressure strip (a14); the groove (a12) and the clamping block (a13) are an integrated structure; the inner side of the clamping block (a13) is riveted and connected to the outer side of the pressure strip (a14); the rear end of the arc plate (a11) is fitted with the front end of the groove (a12); and the lower end of the clamping block (a13) is clamped to the upper end of the pressure plate (a4); The arc plate (a11) is provided with a guide bar (b1), an arc block (b2), and a clamping block (b3); the rear end of the guide bar (b1) is fixed to the front end of the clamping block (b3); the inner side of the arc block (b2) is connected to the outer side of the clamping block (b3); the lower end of the arc block (b2) is embedded and connected to the upper end of the pressure bar (a14); The collecting device (34) is provided with a collecting box (341), a guide ring (342), a snap ring (343), a stopper (344), and a collecting port (345); the outer side of the collecting box (341) is embedded and connected to the inner side of the snap ring (343); the front end of the guide ring (342) is in contact with the rear end of the stopper (344); the inner side of the snap ring (343) is fixedly connected to the outer side of the guide ring (342); the outer side of the stopper (344) is snapped to the inner side of the snap ring (343); the collecting port (345) and the guide ring (342) are an integrated structure; the outer side of the snap ring (343) is fixed to the inner side of the snap ring (35); The collecting box (341) is provided with a clamping plate (c1), a collecting groove (c2), an arc bar (c3), a supporting block (c4), and a top column (c5); the rear end of the clamping plate (c1) is embedded in the front end of the supporting block (c4); the inner side of the collecting groove (c2) is welded to the outer side of the arc bar (c3); the inner side of the arc bar (c3) is riveted to the outer side of the top column (c5); the outer side of the supporting block (c4) is clamped to the inner side of the top column (c5); and the rear end of the collecting groove (c2) is embedded in the front end of the clamping ring (343); The clamping plate (c1) is provided with a spring block (c11), a connecting block (c12), a telescopic column (c13), and a guide block (c14); the rear end of the spring block (c11) is fitted with the front end of the guide block (c14); the outer side of the connecting block (c12) is fixed to the inner side of the guide block (c14); the outer side of the telescopic column (c13) is riveted to the inner side of the connecting block (c12); and the rear end of the guide block (c14) is embedded and connected to the front end of the support block (c4); The equipment is powered on, the placement door (5) is opened, and the parts to be sprayed are placed in the working box (4) for clamping. The transmission box (2) is driven to spray the paint on the parts to cover them. After the paint contacts the parts, it flies and flies toward the collecting device (34) under the guidance of the guide device (32). The residual material contacts the guide groove (321) on the inner side of the top plate (323) along the clamping ring (35), so that the residual material is guided by the clamping plate (a3) ​​and the arc groove (a2). Downward, the spring plate (a5) and the guide plate (a1) are squeezed to shrink the guide bar (b1), and the guide bar (b1) pushes the arc block (b2) outside the clamping block (b3), so that the arc block (b2) abuts against the pressure strip (a14) and is tightly fixed on the abutment groove (a12) inside the clamping block (a13), so as to prevent the residual material from floating back and covering the side of the part, causing the side surface of the part to be covered with paint in advance, so that the coating thickness of the outer surface is changed, and the size of the processed part changes; When the residual material moves into the collecting device (34) along the guide device (32), the residual material spreads toward the inside of the collecting box (341) along the guide ring (342) and the retaining ring (343), so that the residual material enters the collecting groove (c2) for collection, and the residual material is squeezed toward the retaining plate (c1) at the front end of the supporting block (c4) along the top column (c5) on the inner side of the arc bar (c3), so that the spring block (c11) contracts and presses against the guide block (c14) at the rear end of the connecting block (c12) and the telescopic column (c13) for support, and the spring block (c11) rebounds to shake off the residual material into the collecting groove (c2) for accumulation and collection, thereby preventing the residual material from accumulating and falling on the parts to form a cover, thereby destroying the spraying thickness of the surface of the parts and affecting the spraying thickness of the parts.

Images