Sheet metal plastic spraying device with anti-blocking function

Abstract

The application discloses sheet metal plastic spraying device with anti-caking function, belongs to sheet metal plastic spraying equipment field, including frame, the frame is installed with pump suction plastic spraying unit and storage unit, storage unit includes outer shell body, inner cylinder, upper shell, drive assembly, fixed heat conduction frame, heat conduction rod, mobile heat conduction frame and heat conduction ring, outer shell body is fixed on the upper end of frame, inner cylinder is fixed in outer shell body, drive assembly is fixed on outer shell body, fixed heat conduction frame is fixedly connected with inner cylinder, heat conduction ring is fixedly connected with upper shell.The application can transfer heat to the paint powder stored in the inner cylinder through the cooperation of heat conduction ring and mobile heat conduction frame, which can heat and cool the powder coating, so that the powder coating is kept at working temperature, the storage effect of the powder coating is ensured, and the caking of the powder coating caused by high temperature is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sheet metal plastic spraying equipment, in particular to a sheet metal plastic spraying device with anti-caking function. BACKGROUND

[0002] Plastic spraying refers to a processing technology of spraying powder coating to the surface of parts through high-voltage electrostatic method and then curing through high-temperature baking.

[0003] In high-temperature seasons, since the formula of powder coating contains low glass transition temperature polymers such as leveling agents or gloss enhancers, the glass transition temperature is about 30℃, so the powder coating is easy to form powder balls and even caking.

[0004] At present, in the prior art, the application date is August 3, 2021, and the application is CN202110885164.7, an environmental protection type electrostatic plastic spraying equipment is disclosed, which absorbs the heat discharged by the motor during work through the heat-absorbing copper plate and heat-conducting copper rod to heat the stored powder, but cannot discharge the heat in the powder coating in the opposite direction, so the plastic spraying equipment cannot operate in a high-temperature environment. SUMMARY

[0005] The purpose of the present application is to provide a sheet metal plastic spraying device with anti-caking function to solve the problem of powder coating caking in a high-temperature environment as described in the background.

[0006] To achieve the above-mentioned purpose of the application, the technical scheme adopted by the present application is as follows:

[0007] The utility model provides a sheet metal plastic spraying device with anti-caking function, which comprises a rack, a pump suction plastic spraying unit and a storage unit are installed on the rack, the pump suction plastic spraying unit is used for sucking the plastic powder coating in the storage unit and spraying it on the surface of the sheet metal part, and the storage unit is used for storing the plastic powder coating.

[0008] Preferably, a circulating flow channel is formed in the heat conducting rod, a quick connector is fixedly installed on the top of the heat conducting rod, the quick connector is in communication with the circulating flow channel, a connecting groove in communication with the heat conducting flow channel is formed on the heat conducting ring, and the heat conducting flow channel is in communication with the circulating flow channel when the quick connector is inserted into the connecting groove.

[0009] Preferably, the circulating flow channel runs downward from the top end of the heat conducting rod to the lower part and then returns to the top end of the heat conducting rod.

[0010] Preferably, the storage unit further comprises a sliding heat conducting frame, the sliding heat conducting frame is drivingly connected with the moving heat conducting frame, the sliding heat conducting frame is located between the fixed heat conducting frame and the moving heat conducting frame, a plurality of sliding heat conducting plates are arranged on the upper end of the sliding heat conducting frame, the sliding heat conducting plates, the fixed heat conducting plates and the moving heat conducting plates are arranged in a spaced manner below the top feeding port and centered on the center line of the inner cylinder body, and the sliding heat conducting plates, the fixed heat conducting plates and the moving heat conducting plates are located at the same height when the sliding heat conducting frame is inserted into the positioning groove.

[0011] Preferably, the heat-conducting rod comprises a rod body and a sliding tube sleeved on the outer wall of the rod body, the upper end of the rod body is fixedly connected with the quick connector, the lower end of the rod body is fixedly connected with the movable heat-conducting frame, the lower end of the sliding tube is fixedly connected with the sliding heat-conducting frame, the sliding tube is slidingly installed on the upper end face of the inner cylinder body and extends downward into the cavity of the cylinder body, the sliding tube is in contact with the heat-conducting ring, the lower end of the rod body penetrates through the sliding heat-conducting frame downward, and the upper portion of the rod body is provided with an upper flange which can abut against the upper end of the sliding tube and drive the sliding tube to move downward.

[0012] Preferably, the upper end of the inner cylinder body is provided with an opening, and an upper end cover is fixedly arranged at the opening.

[0013] Preferably, the side wall of the upper shell is provided with a feeding groove.

[0014] Preferably, a partition plate is installed in the feeding groove in a rotary connection mode.

[0015] Preferably, a magnetic block is installed on the partition plate, and a magnetic attraction block is fixedly arranged on the side wall of the upper shell, when the partition plate is rotated and closed, the magnetic attraction block can attract the magnetic block,

[0016] Preferably, a heat exchange pipe is further installed in the outer shell, and the heat exchange pipe spirally surrounds the outer wall of the inner cylinder body.

[0017] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0018] By cooperation of the heat-conducting ring and the movable heat-conducting frame, heat can be transferred to the paint powder stored in the inner cylinder body, the powder coating can be heated and cooled, the powder coating can be kept at a working temperature, the storage effect of the powder coating is ensured, and the caking of the powder coating caused by high temperature is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the three-dimensional structure of the embodiment one of the application;

[0020] Figure 2 It is a front view of the embodiment one of the application;

[0021] Figure 3 It is a schematic view of the connection relationship between the inner cylinder body and the upper shell of the embodiment one of the application;

[0022] Figure 4 It is a schematic view of the installation structure of the heat-conducting ring of the embodiment one of the application;

[0023] Figure 5 It is a schematic view of the structure of the positioning groove of the embodiment one of the application;

[0024] Figure 6 Structure diagram of the heat-conducting rod of the embodiment one of the present application;

[0025] Figure 7 Structure diagram of the heat-conducting rod of the embodiment two of the present application;

[0026] Figure 8 Connection diagram of the inner cylinder and the upper shell of the embodiment two of the present application;

[0027] Figure 9 Mounting structure diagram of the driving assembly and the sliding heat-conducting frame of the embodiment two of the present application;

[0028] Figure 10 Three-dimensional structure diagram of the driving assembly and the sliding heat-conducting frame of the embodiment two of the present application;

[0029] Figure 11 Mounting structure diagram of the upper end cover of the embodiment two of the present application;

[0030] Figure 12 Front view of the moving heat-conducting frame and the sliding heat-conducting frame in the unfolded state of the embodiment two of the present application;

[0031] Figure 13 Three-dimensional structure diagram of the moving heat-conducting frame and the sliding heat-conducting frame in the unfolded state of the embodiment two of the present application;

[0032] Figure 14 Mounting structure diagram of the heat-exchange pipe of the embodiment two of the present application;

[0033] Figure 15 Sectional view of the heat-conducting rod of the embodiment two of the present application.

[0034] In the figure: 1, frame; 2, pump suction injection molding unit; 3, outer shell; 4, inner cylinder; 41, top inlet; 42, cylinder cavity; 43, positioning groove; 44, discharge pipe; 45, sliding hole; 46, opening; 5, upper shell; 51, upper cavity; 52, feeding groove; 6, driving assembly; 61, moving end; 7, fixed heat-conducting frame; 71, fixed heat-conducting plate; 8, heat-conducting rod; 81, circulating flow channel; 82, rod body; 821, upper flange; 83, sliding pipe; 9, moving heat-conducting frame; 91, moving heat-conducting plate; 10, heat-conducting ring; 101, heat-conducting flow channel; 102, heat-conducting port; 103, connecting groove; 11, quick connector; 14, sliding heat-conducting frame; 141, sliding heat-conducting plate; 15, upper end cover; 16, partition; 17, magnetic block; 18, magnetic suction block; 19, heat-exchange pipe. DETAILED DESCRIPTION

[0035] In the following, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of, rather than all of, the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the protective scope of the present disclosure.

[0036] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning understood by those skilled in the art to which the present disclosure pertains. The terms "comprise" or "comprising" and the like in the present disclosure mean that the elements or objects before the word encompass the elements or objects listed after the word and equivalents thereof, and do not exclude other elements or objects. The terms "connected" or "connected" and the like are not limited to physical or mechanical connections, but can also include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, which can change accordingly when the absolute positions of the described objects change.

[0037] Embodiment one

[0038] Referring to Figures 1 to 7 As shown in the drawings, the present application provides a sheet metal plastic spraying device with anti-caking function, which comprises a rack 1, a pump suction plastic spraying unit 2 and a storage unit are installed on the rack 1, the pump suction plastic spraying unit 2 is used for sucking the plastic powder coating in the storage unit, the powder coating is sprayed and adsorbed to the surface of the sheet metal part through the action of electrostatic adsorption, so that a powdery coating is formed on the surface of the sheet metal. The storage unit is used for storing the plastic powder coating.

[0039] Referring to Figure 1 With Figure 2 As shown in the drawings, the storage unit comprises an outer shell 3, which is fixed to the upper end of the rack 1 by bolt connection, as a detachable structure, which can reduce the equipment assembly and production time, and reduce the production cost of the equipment.

[0040] The inner cylinder 4 is fixed in the outer shell 3 by filling with foaming material, the foaming material has a certain heat preservation effect, so that the inner cylinder 4 maintains a certain temperature, avoiding the powder coating from caking in the inner cylinder 4 due to high temperature; the top of the inner cylinder 4 is provided with a top feeding port 41, in this embodiment, the top feeding port 41 includes a plurality of fan-shaped ports which are uniformly distributed on the top of the inner cylinder 4 with the center of the inner cylinder 4 as the center; the inner cylinder 4 has a cylinder cavity 42, a temperature sensor is installed in the cylinder cavity 42 to detect the temperature in the cylinder cavity 42, the top feeding port 41 is in communication with the cylinder cavity 42, and a plurality of positioning grooves 43 are arranged on the lower end surface of the top wall of the inner cylinder 4; specifically, the bottom of the inner cylinder 4 is further provided with a discharge pipe 44 which is in communication with the cylinder cavity 42, the powder coating enters the cylinder cavity 42 from the top feeding port 41 and is pumped out by the pump suction and spraying unit 2 through the discharge pipe 44.

[0041] In some optional embodiments, the inner cylinder 4 can be made of metal materials with good thermal conductivity and strong inertness, such as stainless steel, aluminum alloy, etc., preferably made of stainless steel, which has high structural strength and low manufacturing cost under the conditions of meeting the thermal conductivity and chemical stability of the inner cylinder 4, which is conducive to improving the competitive advantage of the sheet metal spraying device.

[0042] Referring to Figure 3 and Figure 4 , the upper shell 5 is fixed to the upper end of the outer shell 3 by welding, the upper shell 5 has an upper cavity 51, a temperature sensor is installed in the upper cavity 51 to detect the temperature in the upper cavity 51, the lower end of the upper shell 5 extends downward through the outer shell 3 and is fixed to the upper end of the inner cylinder 4 by bolt connection, so that the upper shell 5 and the inner cylinder 4 are relatively sealed, the lower end of the upper shell 5 covers the top feeding port 41, so that the top feeding port 41 is in communication with the upper cavity 51, and the powder coating falls from the upper shell 5 into the cylinder cavity 42 through the top feeding port 41, avoiding the powder coating from floating out of the inner cylinder 4 during feeding.

[0043] The driving assembly 6 is fixed to the outer shell 3, and the driving assembly 6 includes a movable end 61 which can move vertically, the movable end 61 extends downward through the upper shell 5 and extends into the upper cavity 51.

[0044] In some optional embodiments, the driving assembly 6 can adopt a pneumatic or electric telescopic rod, such as a pneumatic telescopic rod or an electric telescopic rod, etc., preferably an electric telescopic rod, which is convenient to control the telescopic length of the telescopic rod and convenient to assemble, wherein the telescopic end of the electric telescopic rod is the movable end 61, and the driving force is provided for related components by driving the movable end 61.

[0045] The fixed heat-conducting frame 7 is fixedly connected with the inner cylinder body 4, and the upper end of the fixed heat-conducting frame 7 is provided with a plurality of fixed heat-conducting plates 71 which are installed by means of bolt connection. Heat can be transferred to the fixed heat-conducting frame 7 through the fixed heat-conducting plates 71, so as to reduce the storage temperature of the powder coating in the inner cylinder body 4.

[0046] In some optional embodiments, the fixed heat-conducting frame 7 and the fixed heat-conducting plates 71 can be made of metal materials which have good heat-conducting properties and strong inertness, such as stainless steel, aluminum alloy, etc. Preferably, the fixed heat-conducting frame 7 and the fixed heat-conducting plates 71 are made of stainless steel. Under the condition of meeting the heat-conducting properties and stable chemical properties, the fixed heat-conducting frame 7 and the fixed heat-conducting plates 71 also have high structural strength and low manufacturing cost, which is conducive to improving the competitive advantage of the metal spraying device.

[0047] Referring to Figure 5 As shown in the figure, the upper end surface of the inner cylinder body 4 is provided with a sliding hole 45, and the heat-conducting rod 8 is slidingly inserted into the sliding hole 45 and extends downward into the cylinder cavity 42.

[0048] In some optional embodiments, the heat-conducting rod 8 can be made of metal materials which have good heat-conducting properties and strong inertness, such as stainless steel, aluminum alloy, etc. Preferably, the heat-conducting rod 8 is made of stainless steel. Under the condition of meeting the heat-conducting properties and stable chemical properties, the heat-conducting rod 8 also has high structural strength and low manufacturing cost, which is conducive to improving the competitive advantage of the metal spraying device.

[0049] Referring to Figure 3 As shown in the figure, the moving heat-conducting frame 9 is located in the cylinder cavity 42, and the moving heat-conducting frame 9 is fixedly connected with the heat-conducting rod 8. The upper end of the moving heat-conducting frame 9 is provided with a plurality of moving heat-conducting plates 91 which are installed by means of bolt connection.

[0050] The heat-conducting ring 10 is fixedly connected with the upper shell 5 by means of bolt connection. The heat-conducting ring 10 is provided with a heat-conducting flow channel 101. The heat-conducting flow channel 101 has two heat-conducting ports 102. The heat-conducting rod 8 is in contact with the heat-conducting ring 10. The two heat-conducting ports 102 are connected with external cold source equipment. The external cold source equipment can provide temperature medium. The temperature medium can be air or liquid, etc. The input temperature of the temperature medium can be controlled according to the temperature of the powder coating, so that the temperature of the powder coating is maintained within a certain range, and the powder coating is prevented from caking due to high temperature.

[0051] In some optional embodiments, the moving heat-conducting frame 9 and the moving heat-conducting plates 91 can be made of metal materials which have good heat-conducting properties and strong inertness, such as stainless steel, aluminum alloy, etc. Preferably, the moving heat-conducting frame 9 and the moving heat-conducting plates 91 are made of stainless steel. Under the condition of meeting the heat-conducting properties and stable chemical properties, the moving heat-conducting frame 9 and the moving heat-conducting plates 91 also have high structural strength and low manufacturing cost, which is conducive to improving the competitive advantage of the metal spraying device.

[0052] Referring toFigure 3 As shown, the fixed heat-conducting plate 71 and the movable heat-conducting plate 91 are distributed at intervals below the top feed inlet 41 with the center line of the inner cylinder 4 as the center. When the movable heat-conducting frame 9 is inserted and fixed in the positioning groove 43, the fixed heat-conducting plate 71 and the movable heat-conducting plate 91 are at the same height, forming a distributor.

[0053] Specifically, the fixed heat-conducting plate 71 and the movable heat-conducting plate 91 are matched in shape, and their top heights are the same. During the powder coating feeding process, the powder coating impacts the fixed heat-conducting plate 71 and the movable heat-conducting plate 91, causing flow diversion and allowing the powder coating to be evenly distributed into the cylinder cavity 42. This prevents the powder coating from clumping and clogging, thus reducing flow efficiency. At the same time, during the contact between the powder coating and the fixed heat-conducting plate 71 and the movable heat-conducting plate 91, the fixed heat-conducting plate 71 and the movable heat-conducting plate 91 can transfer heat to the powder coating, allowing the powder coating entering the cylinder cavity 42 to first... Heat transfer is performed in one step. If the powder coating has reached the preset temperature, no further operation is required, which can effectively reduce operating costs. If the powder coating has not reached the preset temperature, the drive component 6 is controlled to work according to the data of the temperature sensor. The telescopic end of the drive component 6 drives the movable heat conduction frame 9 to move downward until it reaches the set height. The movable heat conduction frame 9 unfolds in the cylinder cavity 42, so that heat can be transferred through the movable heat conduction frame 9, which further cools or heats the powder coating, ensuring the storage effect of the powder coating and avoiding the agglomeration of the powder coating due to high temperature.

[0054] Example 2

[0055] Please see Figures 8 to 15 As shown, this embodiment also provides a sheet metal powder coating device with anti-caking function. The specific structure of the sheet metal powder coating device with anti-caking function in this embodiment is roughly the same as the specific structure of the sheet metal powder coating device with anti-caking function in Embodiment 1. The difference between the two is that the sheet metal powder coating device with anti-caking function in this embodiment also includes the following specific structure compared with the sheet metal powder coating device with anti-caking function in Embodiment 1.

[0056] Please see Figure 15 As shown, in order to further improve the heat exchange efficiency of powder coating, a circulation channel 81 is provided inside the heat-conducting rod 8. The circulation channel 81 is set from the top of the heat-conducting rod 8 downward and then discharged through the top of the heat-conducting rod 8. A quick-connect plug 11 is fixed on the top of the heat-conducting rod 8. The quick-connect plug 11 is connected to the circulation channel 81. A connecting groove 103 is provided on the heat-conducting ring 10, which is connected to the heat-conducting channel 101. When the quick-connect plug 11 is inserted into the connecting groove 103, the heat-conducting channel 101 is connected to the circulation channel 81.

[0057] Specifically, after the circulation flow channel 81 communicates with the heat conduction flow channel 101, the temperature medium can flow into the heat conduction rod 8, and the heat exchange efficiency of the heat conduction rod 8 can be further improved, thereby improving the heat exchange efficiency of the powder coating in the barrel cavity 42.

[0058] In some optional embodiments, the temperature medium can be air or liquid, etc. In the present application, the temperature medium is preferably air at a certain temperature. The air as the temperature medium can avoid leakage of the temperature medium in the barrel cavity 42, contamination of the powder coating, and reduction of the influence on the powder coating.

[0059] In some optional embodiments, the flow direction of the circulation flow channel 81 can be vertical, horizontal or spiral. In the present application, the flow direction of the circulation flow channel 81 is preferably from the top end of the heat conduction rod 8 downward to the lower part and then back to the top end of the heat conduction rod 8. The flow direction has a longer flow path, and the heat and the temperature medium have a longer contact area, thereby ensuring the heat transfer efficiency.

[0060] Please refer to Figures 8 to 13 As shown in the drawings, in order to further improve the heat exchange effect of the powder coating, the storage unit further comprises a sliding heat conduction frame 14, the sliding heat conduction frame 14 is drivingly connected with the moving heat conduction frame 9, the sliding heat conduction frame 14 is located between the fixed heat conduction frame 7 and the moving heat conduction frame 9, the upper end of the sliding heat conduction frame 14 is provided with a plurality of sliding heat conduction plates 141, the sliding heat conduction plates 141, the fixed heat conduction plates 71 and the moving heat conduction plates 91 are distributed in the center line of the inner barrel 4 as the center and below the top feed port 41, when the sliding heat conduction frame 14 is inserted and fixed in the positioning groove 43, the sliding heat conduction plates 141, the fixed heat conduction plates 71 and the moving heat conduction plates 91 are located at the same height, forming a distributor.

[0061] Specifically, the sliding heat conduction frame 14, the fixed heat conduction frame 7 and the moving heat conduction frame 9 have the same top height, when the powder coating in the barrel cavity 42 does not reach the preset temperature, the driving assembly 6 works to drive the moving end 61 to move downward, the moving end 61 drives the sliding heat conduction frame 14 and the moving heat conduction frame 9 to move downward, until the sliding heat conduction frame 14 and the moving heat conduction frame 9 are completely unfolded, the unfolded sliding heat conduction frame 14 is located in the middle of the barrel cavity 42, and the moving heat conduction frame 9 is located in the lower part of the barrel cavity 42, so that the heat can be transmitted through the sliding heat conduction frame 14 and the moving heat conduction frame 9, thereby improving the heat transfer efficiency, further cooling or heating the powder coating, and ensuring the storage effect of the powder coating and avoiding the caking of the powder coating due to high temperature.

[0062] In some optional embodiments, the heat-conducting rod 8 comprises a rod body 82 and a sliding pipe 83 sleeved on the outer wall of the rod body 82, the upper end of the rod body 82 is fixedly connected with the quick connector 11 by screw connection, the lower end of the rod body 82 is fixedly connected with the movable heat-conducting frame 9 by screw connection, the lower end of the sliding pipe 83 is fixedly connected with the sliding heat-conducting frame 14 by screw connection, the sliding pipe 83 is slidingly installed on the upper end face of the inner cylinder body 4 and extends downward into the cylinder cavity 42, the outer wall of the sliding pipe 83 is in contact with the inner wall of the heat-conducting ring 10, heat can be transferred to the heat-conducting ring 10 through the sliding pipe 83, the lower end of the rod body 82 penetrates downward through the sliding heat-conducting frame 14, and the upper portion of the rod body 82 is provided with an upper flange 821 which can abut against the upper end of the sliding pipe 83 and drive the sliding pipe 83 to move downward.

[0063] When the rod body 82 is displaced downward, the rod body 82 drives the movable heat-conducting frame 9 to move downward, the sliding heat-conducting frame 14 is limited to a certain height due to the resistance of the powder raw material, until the upper flange 821 abuts against the upper end of the sliding pipe 83, the sliding pipe 83 moves downward along with the rod body 82 until the upper flange 821 abuts against the upper end of the inner cylinder body 4, so as to reach the limit position, the sliding heat-conducting frame 14 at the lower end of the sliding pipe 83 is moved to the set height, and meanwhile heat can be transferred to the heat-conducting pipe through the sliding heat-conducting frame 14, and then to the heat-conducting ring 10 through the heat-conducting pipe, so as to further increase the heat transfer path and ensure the storage effect of the powder coating.

[0064] Please refer to Figure 11 As shown in the figure, in order to facilitate the installation of the inner cylinder body 4, an opening 46 is formed in the upper end of the inner cylinder body 4, and an upper end cover 15 is fixedly connected at the opening 46 by screw connection, and the top feeding port 41 is formed in the top end of the upper end cover 15. The sliding hole 45 and the top feeding port 41 are both formed in the upper end face of the upper end cover 15, the top feeding ports 41 are uniformly arranged around the sliding hole 45, the heat-conducting ring 10 is fixed on the upper end face of the upper end cover 15, and the center line of the heat-conducting ring 10 coincides with the center line of the sliding hole 45.

[0065] Further, in order to facilitate the feeding of the powder coating, a feeding groove 52 is formed in the side wall of the upper shell 5. A partition plate 16 is installed in the feeding groove 52 by rotary connection. The partition plate 16 is provided with rotary shafts on both sides, and the rotary shafts are rotatably inserted into both sides of the feeding groove 52.

[0066] Further, in order to avoid the scattering of dust, a magnetic block 17 is installed on the partition plate 16, and a magnetic attraction block 18 is fixed on the side wall of the upper shell 5, and the magnetic attraction block 18 can attract the magnetic block 17 when the partition plate 16 is rotated and closed. In this application, the magnetic block 17 can be made of a magnet, and the magnetic attraction block 18 can be made of a material that can be attracted by magnetic force, such as iron, cobalt, nickel and other metal materials.

[0067] In order to further improve the heat exchange effect of the powder coating, the heat exchange pipe 19 is installed in the outer shell 3, and the heat exchange pipe 19 spirally surrounds the outer wall of the inner cylinder 4.

[0068] Specifically, the heat exchange pipe 19 is connected with an external medium device, the external medium device provides temperature medium, the temperature medium flows in the heat exchange pipe 19, the temperature of the powder coating can be transferred to the temperature medium, so that the powder coating in the inner cylinder 4 is further cooled or heated, the storage effect of the powder coating is ensured, and the caking of the powder coating due to high temperature is avoided.

[0069] In general, through the cooperation of the heat conduction ring 10 and the moving heat conduction frame 9, the heat of the coating powder stored in the inner cylinder 4 can be transferred, the powder coating can be heated and cooled, the powder coating can be kept at the working temperature, and the caking of the powder coating is avoided; the fixed heat conduction frame 7 and the moving heat conduction frame 9 can not only transfer heat, but also can be used as a material distribution structure, so that the occupied space of the equipment is effectively saved.

[0070] The above examples are only exemplary embodiments of the present application and are not used to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

Claims

1. A sheet metal spraying device with anti-caking function, comprising a rack (1), a pump suction spraying unit (2) and a storage unit are installed on the rack (1), the pump suction spraying unit (2) is used to suck the powder coating in the storage unit and spray it on the surface of the sheet metal part, and the storage unit is used to store the powder coating, characterized in that, The storage unit comprises: An outer shell (3) fixed to the upper end of the rack (1); An inner cylinder (4) fixed in the outer shell (3), with a top feed inlet (41) at the top, a cylinder cavity (42), and a plurality of positioning grooves (43) on the lower end face of the top wall; An upper shell (5) fixed to the upper end of the outer shell (3), with an upper cavity (51) extending downward through the outer shell (3) and covering the top feed inlet (41), so that the top feed inlet (41) is in communication with the upper cavity (51); A fixed heat-conducting frame (7) fixedly connected with the inner cylinder (4) and provided with a plurality of fixed heat-conducting plates (71) at the upper end; A heat-conducting rod (8) vertically slidingly installed on the upper end face of the inner cylinder (4) and extending downward into the cylinder cavity (42); A movable heat-conducting frame (9) located in the cylinder cavity (42) and fixedly connected with the heat-conducting rod (8), and provided with a plurality of movable heat-conducting plates (91) at the upper end; A drive assembly (6) fixed to the outer shell (3) and comprising a movable end (61) vertically movable for driving the movable heat-conducting frame (9) to move up and down in the cylinder cavity (42), wherein the movable end (61) extends downward through the upper shell (5) and into the upper cavity (51); and a heat-conducting ring (10) fixedly connected with the upper shell (5) and comprising a heat-conducting flow channel (101), wherein the heat-conducting rod (8) is in contact with the heat-conducting ring (10); The fixed heat-conducting plates (71) and the movable heat-conducting plates (91) are spaced apart below the top feed inlet (41) with the center line of the inner cylinder (4) as the center, and the fixed heat-conducting plates (71) and the movable heat-conducting plates (91) are located at the same height when the movable heat-conducting frame (9) is inserted and fixed in the positioning grooves (43).

2. The sheet metal plastic spraying device with anti-blocking function according to claim 1, characterized in that: The heat-conducting rod (8) is provided with a circulating flow channel (81) therein, a quick connector (11) is fixedly installed at the top of the heat-conducting rod (8), the quick connector (11) is in communication with the circulating flow channel (81), the heat-conducting ring (10) is provided with a connecting groove (103) in communication with the heat-conducting flow channel (101), and the heat-conducting flow channel (101) is in communication with the circulating flow channel (81) when the quick connector (11) is inserted into the connecting groove (103).

3. The sheet metal plastic spraying device with anti-blocking function according to claim 2, characterized in that: The circulating flow channel (81) extends downward from the top end of the heat-conducting rod (8) to the lower part and returns to the top end of the heat-conducting rod (8).

4. The sheet metal plastic spraying device with anti-blocking function according to claim 3, characterized in that: The storage unit further comprises a sliding heat-conducting frame (14) which is drivingly connected with the moving heat-conducting frame (9), is located between the fixed heat-conducting frame (7) and the moving heat-conducting frame (9), and is provided with a plurality of sliding heat-conducting plates (141) at the upper end thereof, the sliding heat-conducting plates (141), the fixed heat-conducting plates (71) and the moving heat-conducting plates (91) are centered on the center line of the inner cylinder (4) and are spaced apart below the top feeding port (41), and when the sliding heat-conducting frame (14) is inserted into the positioning groove (43), the sliding heat-conducting plates (141), the fixed heat-conducting plates (71) and the moving heat-conducting plates (91) are located at the same height.

5. The sheet metal plastic spraying device with anti-blocking function according to claim 4, characterized in that: The heat-conducting rod (8) comprises a rod body (82) and a sliding pipe (83) which is slidably sleeved on the outer wall of the rod body (82), the upper end of the rod body (82) is fixedly connected with the quick connector (11), the lower end of the rod body (82) is fixedly connected with the moving heat-conducting frame (9), the lower end of the sliding pipe (83) is fixedly connected with the sliding heat-conducting frame (14), the sliding pipe (83) is slidably installed on the upper end face of the inner cylinder (4) and extends downward into the cylinder cavity (42), the sliding pipe (83) is in contact with the heat-conducting ring (10), the lower end of the rod body (82) penetrates downward through the sliding heat-conducting frame (14), and the upper portion of the rod body (82) is provided with an upper flange (821) which can abut against the upper end of the sliding pipe (83) and drive the sliding pipe (83) to move downward.

6. The sheet metal plastic spraying device with anti-blocking function according to any one of claims 1-5, characterized in that: The upper end of the inner cylinder (4) is provided with an opening (46), and the upper end cover (15) is fixed at the opening (46).

7. The sheet metal plastic spraying device with anti-blocking function according to claim 6, characterized in that: The sidewall of the upper shell (5) is provided with a feeding groove (52).

8. The sheet metal plastic spraying device with anti-blocking function according to claim 7, characterized in that: The feeding groove (52) is provided with a partition plate (16) which is rotatably connected.

9. The sheet metal plastic spraying device with anti-blocking function according to claim 8, characterized in that: The partition plate (16) is provided with a magnetic block (17), the sidewall of the upper shell (5) is fixedly provided with a magnetic suction block (18), and when the partition plate (16) is rotated to be closed, the magnetic suction block (18) can attract the magnetic block (17).

10. The sheet metal plastic spraying device with anti-blocking function according to claim 1, characterized in that: The outer shell (3) is further provided with a heat exchange pipe which spirally surrounds the outer wall of the inner cylinder (4).

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