Coating additive adding device

Abstract

The invention relates to the technical field of coating additives, and discloses a coating additive adding device which comprises a mixing device body, the mixing device body is composed of a plugging top cover and a mixing barrel, the plugging top cover is movably connected with the mixing barrel, and meanwhile, a material receiving hopper, an upper mixing rod and a lower mixing rod are further arranged in the mixing barrel; the material receiving hopper is communicated with the two additive tanks arranged at the top of the plugging top cover, the material receiving hopper is connected with the upper mixing rod through the transmission rod, the lower mixing rod is movably connected with the upper mixing rod through the connecting rod, and the transmission rod drives the scraper to rotate, so that on one hand, the scraper can be driven by the scraper in a rotating manner; on the other hand, the auxiliary agents injected into the material receiving hopper are preliminarily mixed to a certain degree, so that the mixing efficiency of the auxiliary agents and the coating is improved conveniently when the auxiliary agents make contact with the coating subsequently, and on the other hand, the scraper blades rotate, so that the auxiliary agents adhered to the inner wall of the material receiving hopper can be cleaned conveniently after the scraper blades expand downwards subsequently.

Description

Technical Field

[0001] This invention relates to the field of coating additives technology, specifically to a coating additive adding device. Background Technology

[0002] Coating additives are indispensable components of coatings. They can improve production processes, maintain storage stability, improve application conditions, and enhance product quality; they are additives with special functions. The rational and correct selection of additives can reduce costs and improve economic efficiency. Therefore, coating additives are an important component of coating products and are now widely used. Their addition can not only prevent many coating defects and film flaws but also make the production and application processes of coatings easier to control.

[0003] In order to save manpower and resources, users usually add additives directly to the paint when adding it to the coating. Although this method can improve the quality of the paint, the direct addition method may result in only a local part of the paint and additives being mixed, while the paint in other parts remains in its original state. At the same time, if the amount of additives added is large, some of the additives will also stick to the inner wall of the receiving hopper.

[0004] Therefore, since the existing requirements are not met, we propose a coating additive addition device. Summary of the Invention

[0005] This invention provides a coating additive addition device, which features a drive rod that rotates a scraper. This rotation allows the additive injected into the receiving hopper to undergo preliminary mixing, thus accelerating the mixing efficiency when it comes into contact with the coating. Furthermore, the rotation of the scraper facilitates the cleaning of additives adhering to the inner wall of the receiving hopper after its downward expansion. This solves the problem mentioned in the background art where, with direct addition of additives, some of the additives can adhere to the inner wall of the receiving hopper if the amount added is large.

[0006] The present invention provides the following technical solution: a coating additive addition device, comprising a mixing device body, the mixing device body being composed of a sealing top cover and a mixing tank, wherein the sealing top cover and the mixing tank are movably connected, and the mixing tank is further provided with a receiving hopper, an upper mixing rod and a lower mixing rod inside, wherein the receiving hopper is connected to two additive tanks disposed on the top of the sealing top cover, and the receiving hopper and the upper mixing rod are connected by a transmission rod, and the lower mixing rod is movably connected to the upper mixing rod by a transmission connecting rod; The receiving hopper is equipped with two scrapers, which are symmetrically and movably arranged on the surface of the transmission rod. At the same time, the tops of the two scrapers are movably arranged in the first annular groove opened on the bottom surface of the sealing cover through telescopic components, and each scraper is connected to a connecting rod.

[0007] As an optional embodiment of the coating additive adding device of the present invention, the top of the receiving hopper is further provided with a second annular groove, and the output end of the telescopic cylinder provided on the top surface of the sealing cover is movably disposed inside the second annular groove. At the same time, each scraper is provided with a first moving groove and a second moving groove on the side surface near the transmission rod.

[0008] As an optional embodiment of the coating additive adding device of the present invention, the second moving groove is used to slide the extrusion moving block, the first moving groove is used to slide the extrusion moving block with a moving ball on the top, and the extrusion moving block is movably mounted on the surface of the transmission rod by a connecting spring at the bottom.

[0009] As an optional embodiment of the coating additive addition device of the present invention, a feeding cylinder is movably arranged between the receiving hopper and the mixing rod. The feeding cylinder is used to feed the additive inside the receiving hopper into the mixing rod. An annular gas storage box is movably sleeved on the surface of the feeding cylinder. The annular gas storage box is fixedly connected to the bottom surface of the sealing top cover through a fixing frame. At the same time, a sealing block is fixedly arranged on the side surface of each connecting rod away from the transmission rod. The sealing block is used to seal the gap between the scraper and the receiving hopper.

[0010] As an optional embodiment of the coating additive adding device of the present invention, the sealing top cover is further provided with a storage groove, and the storage groove is provided with a driving gear, a driven gear and a connecting ratchet, and the driven gear meshes with the driving gear and the connecting ratchet respectively.

[0011] As an optional embodiment of the coating additive adding device of the present invention, wherein: a plurality of connecting ratchet wheels are provided, and the plurality of connecting ratchet wheels are meshed with the drive gear, and the drive gear is fixedly connected to the output end of the drive motor provided on the top of the sealing cover.

[0012] As an optional embodiment of the coating additive adding device of the present invention, each of the connecting ratchet is provided with a squeezing box below it, and each of the connecting ratchets is movably disposed inside the squeezing box via a connecting rod, and an arc-shaped squeezing rod and a squeezing airbag are respectively provided inside the squeezing box.

[0013] As an optional embodiment of the coating additive adding device of the present invention, the arc-shaped extrusion rod and the connecting rod are fixedly connected, and the arc-shaped extrusion rod is used to extrude the extrusion airbag, while the bottom of the connecting rod is also fixedly connected to the worm spring.

[0014] As an optional embodiment of the coating additive addition device of the present invention, each of the mixing rods has a connecting slot inside, and each connecting slot has a feeding rod movably disposed inside. The side of the feeding rod near the transmission rod is connected to the movable push rod, and the movable push rod has a feeding cavity inside.

[0015] As an optional embodiment of the coating additive adding device of the present invention, the movable push rod is movably disposed inside the feeding insert rod through a connecting ball provided on the connection point. The connecting ball is used to adjust the angle of the movable push rod, and the feeding cavity is used to communicate with the inside of the feeding insert rod. In addition, the connection point of the movable push rod is also fixedly connected to the bottom end of the connecting rod.

[0016] The present invention has the following beneficial effects: 1. This coating additive adding device uses a transmission rod to drive a scraper to rotate. This allows the scraper to initially mix the additives injected into the receiving hopper, thus facilitating faster mixing when it comes into contact with the coating. On the other hand, the rotation of the scraper also allows it to clean the additives adhering to the inner wall of the receiving hopper after it expands downwards.

[0017] 2. In this coating additive addition device, the mixing lower rod is movably connected to the mixing upper rod via a connecting rod. This means that when the mixing upper rod rotates, the mixing lower rod will rotate in the opposite direction under the influence of this rotational force. Since the mixing lower rod and the mixing upper rod rotate in opposite directions, the coating within the mixing range of the mixing lower rod and the coating within the mixing range of the mixing upper rod are in opposite mixing states. This layered mixing method also improves the mixing degree of the coating and additives to a certain extent, thereby increasing the mixing efficiency between the two.

[0018] 3. In this coating additive addition device, the connecting rod and the scraper are fixedly connected, so when the scraper moves, the connecting rod also moves accordingly. The movable push rod is movably positioned inside the feeding insert rod through connecting ball bearings at the connection point. This means that the angle of the movable push rod changes accordingly when the connecting rod rises or falls. As the connecting rod rises or falls, the movable push rod also drives the feeding insert rod to move inside the connecting slot under the force of this force. This connection method allows the initially mixed additive to be mixed with the coating in an intermittent manner. Compared with the direct mixing method in the prior art, this mixing method also improves the mixing efficiency between the two to a certain extent. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the mixing tank of the present invention.

[0021] Figure 3 This is a schematic diagram of the connection structure between the receiving hopper and the mixing rod of the present invention.

[0022] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the receiving hopper of the present invention.

[0023] Figure 5 This is an enlarged structural diagram of point A in the present invention.

[0024] Figure 6 This is a schematic diagram of the connection structure between the rotating block and the transmission rod of the present invention.

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the partial sealing top cover of the present invention.

[0026] Figure 8 This is a schematic diagram of the connecting ratchet structure of the present invention.

[0027] Figure 9 This is a schematic diagram of the cross-sectional structure of a partial extrusion box according to the present invention.

[0028] Figure 10 This is an enlarged structural diagram of point B in the present invention.

[0029] Figure 11 This is a schematic diagram of the partially hybrid upper rod cross-section structure of the present invention.

[0030] Figure 12 This is an enlarged structural diagram of point C in the present invention.

[0031] Figure 13 This is a schematic diagram of the cross-sectional structure of a partially movable push rod according to the present invention.

[0032] In the diagram: 1. The main body of the mixing device; 101. Sealing top cover; 102. Mixing tank; 103. Additive tank; 104. Drive motor; 105. Storage trough; 106. Receiving hopper; 107. Transmission rod; 108. First connecting rod; 109. Upper mixing rod; 110. Transmission connecting rod; 111. Lower mixing rod; 112. Drive gear; 113. Driven gear; 114. Connecting ratchet; 115. Telescopic cylinder; 116. Scraper; 117. Air groove; 118. Telescopic component; 119. First moving groove; 120. Extrusion moving block; 121. Connecting spring; 122. Second moving groove; 123. Sealing block; 12 4. Extrusion box; 125. Second connecting rod; 126. Snail spring; 127. Arc-shaped extrusion rod; 128. Extrusion air bladder; 129. Feeding insert rod; 130. Connecting slot; 131. First discharge port; 132. Moving slide; 133. Second discharge port; 134. Connecting ball; 135. Movable push rod; 136. Connection point; 137. Feeding cavity; 138. Second annular groove; 139. First annular groove; 140. Rotating block; 141. Contact rod; 142. Contact block; 143. Annular air storage box; 144. Fixing frame; 145. Feeding cylinder; 146. Air pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0034] Please see Figures 1-4 A coating additive adding device includes a mixing device body 1, which is composed of a sealing top cover 101 and a mixing tank 102. The sealing top cover 101 and the mixing tank 102 are movably connected. The mixing tank 102 is also provided with a receiving hopper 106, a mixing upper rod 109 and a mixing lower rod 111. The receiving hopper 106 is connected to two additive tanks 103 located on the top of the sealing top cover 101. The receiving hopper 106 and the mixing upper rod 109 are connected by a transmission rod 107. The mixing lower rod 111 is movably connected to the mixing upper rod 109 by a transmission connecting rod 110. The receiving hopper 106 is equipped with two scrapers 116. The two scrapers 116 are symmetrically and movably arranged on the surface of the transmission rod 107. At the same time, the tops of the two scrapers 116 are movably arranged in the first annular groove 139 opened on the bottom surface of the sealing top cover 101 through the telescopic member 118. Each scraper 116 is connected to a first connecting rod 108.

[0035] In this embodiment: when the user injects the paint into the mixing tank 102 through the feed check valve, the two auxiliary agent tanks 103 set on the top of the sealing cover 101 are also opened. Since the two auxiliary agent tanks 103 are connected to the inside of the receiving hopper 106, the auxiliary agent inside the auxiliary agent tank 103 will flow into the receiving hopper 106 and gradually flow along the inner wall of the receiving hopper 106 to the feeding cylinder 145. The lower end of the feeding cylinder 145 is connected to the mixing rod 109. Therefore, the auxiliary agent flowing into the feeding cylinder 145 will eventually be temporarily stored in the mixing rod 109. During the process of the additive flowing into the mixing rod 109, the drive motor 104 located on top of the sealing cover 101 is activated. Since the output end of the drive motor 104 is fixedly connected to the drive gear 112 located inside the storage slot 105, as the drive gear 112 rotates, the driven gear 113 meshing with the drive gear 112 will also rotate synchronously in the opposite direction. Furthermore, since the lower end of the driven gear 113 is fixedly connected to the rotating block 140, and the rotating block 140 is movably located inside the transmission rod 107, and the rotating block 140 is connected to the transmission rod 107 via an integrally formed contact rod 141, the drive motor 104 is activated. The contact blocks 142 are in contact with each other, so that as the driven gear 113 rotates, the transmission rod 107 will rotate synchronously, and the two scrapers 116 that are movably connected to the transmission rod 107 will also rotate accordingly. In this way, on the one hand, the scrapers 116 can rotate to allow the additives injected into the receiving hopper 106 to be mixed to a certain extent, so as to facilitate the mixing efficiency of the two when they come into contact with the coating later. On the other hand, by allowing the scrapers 116 to rotate, it is also convenient for the scrapers 116 to clean the additives adhering to the inner wall of the receiving hopper 106 after they expand downward. It should be noted that since the two scrapers 116 are movably set inside the first annular groove 139 opened on the bottom surface of the sealing top cover 101 through the telescopic member 118, even if the scrapers 116 rotate accordingly, there will be no jamming due to the setting of the telescopic member 118 and the first annular groove 139. Example 2

[0036] This embodiment is an improvement based on Embodiment 1, according to... Figures 4-6As shown, the top of the receiving hopper 106 is also provided with a second annular groove 138, and the output end of the telescopic cylinder 115, which is located on the top surface of the sealing top cover 101, is movably disposed inside the second annular groove 138. Meanwhile, each scraper 116 has a first moving groove 119 and a second moving groove 122 respectively on the side surface near the transmission rod 107.

[0037] The second moving groove 122 is used to slide the extrusion moving block 120. The first moving groove 119 is used to slide the extrusion moving block 120. The top of the extrusion moving block 120 is provided with a moving ball. The extrusion moving block 120 is movably mounted on the surface of the transmission rod 107 by a connecting spring 121 provided at the bottom.

[0038] A feeding cylinder 145 is movably arranged between the receiving hopper 106 and the mixing rod 109. The feeding cylinder 145 is used to feed the additive inside the receiving hopper 106 into the mixing rod 109. An annular gas storage box 143 is also movably sleeved on the surface of the feeding cylinder 145. The annular gas storage box 143 is fixedly connected to the bottom surface of the sealing top cover 101 through the fixing frame 144. At the same time, a sealing block 123 is fixedly arranged on the side of each first connecting rod 108 away from the transmission rod 107. The sealing block 123 is used to seal the gap between the scraper 116 and the receiving hopper 106.

[0039] The sealing top cover 101 also has a storage slot 105 inside, and the storage slot 105 is provided with a drive gear 112, a driven gear 113 and a connecting ratchet 114. The driven gear 113 meshes with the drive gear 112 and the connecting ratchet 114 respectively.

[0040] In this embodiment: As time goes by, the amount of additive flowing into the receiving hopper 106 will gradually increase. At this time, the additive that does not flow from the first connecting rod 108 into the mixing rod 109 is very likely to accumulate on the inner wall of the receiving hopper 106. At this time, the telescopic cylinder 115 set on the top surface of the sealing top cover 101 is activated. Since the output end of the telescopic cylinder 115 is connected to one of the scrapers 116, the scraper 116 will move downward under the action of the telescopic cylinder 115 as the telescopic cylinder 115 is activated. Since the scraper 116 is movably mounted on the transmission rod 107, and the transmission rod 107 is slidably mounted in the second moving groove 122 opened inside the scraper 116 via the extrusion moving block 120, when the scraper 116 moves downward, the extrusion moving block 120 will gradually move upward along the second moving groove 122. It should be noted that the second moving groove 122 is provided with three moving stations. The depth of the first moving station is less than the depth of the second moving station, while the depth of the third moving station is greater than the depth of the first moving station but less than the depth of the second moving station. This means that when the extrusion moving block 120 moves from the first moving station to the second moving station, the scraper 116 will move to a certain extent away from the transmission rod 107 under the push of the extrusion moving block 120. As the scraper 116 expands, it gradually adheres to the inner wall of the receiving hopper 106. Under the action of rotation, the scraper 116 scrapes off the additives accumulated on the inner wall of the receiving hopper 106. This design effectively avoids the accumulation of additives on the inner wall of the receiving hopper 106, which would make it difficult for the additives to flow into the mixing rod 109. It should be noted that since a connecting spring 121 is provided at one end of the extrusion moving block 120 near the transmission rod 107, the extrusion moving block 120 will move accordingly when it is in different moving positions due to the elastic force of the connecting spring 121. Furthermore, since a moving ball is provided on the side of the extrusion moving block 120 near the scraper 116, and the extrusion moving block 120 is slidably disposed inside the first moving groove 119 through the moving ball, this arrangement allows the scraper 116 to move more stably, and the connection of the moving ball can also prevent the scraper 116 from becoming loose from the transmission rod 107 during the movement. It should be noted that since a second annular groove 138 is provided on the top surface of the receiving hopper 106, and the output end of the telescopic cylinder 115 is movably disposed inside the second annular groove 138, even if the scraper 116 rotates accordingly, the output end of the telescopic cylinder 115 will not get stuck due to the setting of the second annular groove 138. Example 3

[0041] This embodiment is an improvement based on Embodiment 1, according to... Figure 4 , Figure 7 , Figure 8 , Figure 9 as well as Figure 10As shown, there are several connecting ratchet 114s, and each of the ratchet 114s meshes with the drive gear 112. The drive gear 112 is fixedly connected to the output end of the drive motor 104 provided on the top of the sealing cover 101.

[0042] Each connecting ratchet 114 is provided with a compression box 124 below it, and each connecting ratchet 114 is movably disposed inside the compression box 124 via a second connecting rod 125. An arc-shaped compression rod 127 and a compression airbag 128 are respectively provided inside the compression box 124.

[0043] The arc-shaped extrusion rod 127 and the second connecting rod 125 are fixedly connected. The arc-shaped extrusion rod 127 is used to extrude the extrusion airbag 128. At the same time, the bottom of the second connecting rod 125 is also fixedly connected to the worm spring 126.

[0044] In this embodiment: Since several connecting ratchet wheels 114 are also provided inside the storage slot 105, and each connecting ratchet wheel 114 meshes with the driven gear 113, the connecting ratchet wheels 114 will rotate accordingly as the driven gear 113 rotates. Due to the characteristics of the connecting ratchet wheels 114, they may get stuck when rotating in the opposite direction. This means that when the connecting ratchet wheels 114 rotate, the second connecting rod 125, which is fixedly connected to the connecting ratchet wheels 114, will rotate synchronously. Furthermore, since the second connecting rod 125 is movably disposed inside the extrusion box 124 via an integrally formed arc-shaped extrusion rod 127, as the second connecting rod 125 rotates, the arc-shaped extrusion rod 127 will extrude the extrusion airbag 128, which is also disposed inside the extrusion box 124. It should be noted that the extrusion airbag 128 has an arc-shaped structure and is corrugated overall. This allows the extrusion airbag 128 to be extruded by the arc-shaped extrusion rod 127. As several connecting ratchet wheels 114 rotate synchronously, the gas inside several extrusion airbags 128 will be injected simultaneously into the annular air storage box 143, which is movably disposed on the surface of the feeding cylinder 145, through the corresponding air groove 117 and air pipe 146. When the gas inside the several compression airbags 128 enters the annular air storage box 143, the air pressure inside the annular air storage box 143 is increased because it is connected to the inside of the feeding cylinder 145. At this time, the additive inside the feeding cylinder 145 will flow into the mixing rod 109 under this pressure. Furthermore, when the scraper 116 scrapes, the sealing block 123 on the telescopic member 118 also seals the gap between the scraper 116 and the receiving hopper 106. This causes the air pressure inside the feeding cylinder 145 to increase within a certain range, thereby allowing this air pressure to better accelerate the flow of the additive. When the scraper 116 moves to the third moving station, the sealing block 123 will also release the block between the scraper 116 and the receiving hopper 106, so that the additive temporarily accumulated on the sealing block 123 can quickly flow into the first connecting rod 108. It should be noted that by setting the worm spring 126, and by forming a fixed connection between one end of the worm spring 126 and the second connecting rod 125, the elastic action of the worm spring 126 allows the connecting ratchet 114 to quickly separate the arc-shaped pressing rod 127 and the second connecting rod 125 within a certain range when it stops rotating. Example 4

[0045] This embodiment is an improvement based on Embodiment 1, according to... Figures 11-13 As shown, each mixing rod 109 has a connecting slot 130 inside, and each connecting slot 130 has a movably installed feeding rod 129 inside. The side of the feeding rod 129 near the transmission rod 107 is connected to the movable push rod 135, and the movable push rod 135 has a feeding cavity 137 inside.

[0046] The movable push rod 135 is movably disposed inside the feeding rod 129 via the connecting ball 134 provided on the connection 136. The connecting ball 134 is used to adjust the angle of the movable push rod 135, and the feeding cavity 137 is used to connect to the inside of the feeding rod 129. In addition, the connection 136 of the movable push rod 135 is also fixedly connected to the bottom end of the first connecting rod 108.

[0047] In this embodiment: Since the bottom end of the first connecting rod 108 is fixedly connected to the movable push rod 135 inside the mixing rod 109, and the feeding cavity 137 and the feeding rod 129 are connected, the additives that enter the mixing rod 109 through the feeding cylinder 145 will eventually enter the feeding rod 129 through this connection. Furthermore, since the first connecting rod 108 and the scraper 116 are fixedly connected, when the scraper 116 moves downward, the first connecting rod 108 will also move accordingly. The movable push rod 135 is movably disposed inside the feeding rod 129 through the connecting ball 134 provided on the connection 136. This causes the angle of the movable push rod 135 to change accordingly as the first connecting rod 108 descends. As the first connecting rod 108 gradually descends, the movable push rod 135 will also drive the feeding rod 129 to move into the connecting slot 130 under the action of this descending force. Because the second outlet 133 on the feeding rod 129 and the first outlet 131 on the mixing rod 109 are misaligned, the additives flowing into the feeding rod 129 are temporarily blocked when the feeding rod 129 is not moving. As the feeding rod 129 moves, the second outlet 133 moves accordingly inside the moving chute 132. When the second outlet 133 and the first outlet 131 overlap, the additives inside the feeding rod 129 flow into the mixing tank 102 through the second outlet 133 and the first outlet 131, and the mixing effect of the coating and additives is completed under the action of the mixing rod 109 and the mixing rod 111. When the first connecting rod 108 is reset, the feeding rod 129 will also move towards the transmission rod 107 under the action of the movable push rod 135. At this time, the second discharge port 133 and the first discharge port 131 will be misaligned again. Through this connection method, the initially mixed additives can be mixed with the coating in an intermittent manner. Compared with the direct mixing method in the prior art, this mixing method also improves the mixing efficiency between the two to a certain extent. It should be noted that since the mixing lower rod 111 is movably connected to the mixing upper rod 109 via the transmission connecting rod 110, when the mixing upper rod 109 rotates, the mixing lower rod 111 will rotate in the opposite direction under the action of this rotational force. Since the mixing lower rod 111 and the mixing upper rod 109 rotate in opposite directions, the paint within the mixing range of the mixing lower rod 111 and the paint within the mixing range of the mixing lower rod 111 are in opposite mixing states. This layered mixing method also improves the mixing degree of the paint and additives to a certain extent, thereby improving the mixing efficiency between the two. Once the coating and additives are mixed, the user can discharge the mixed coating out of the mixing tank 102 through the discharge check valve.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A coating additive adding device, comprising a mixing device body (1), characterized in that: The mixing device body (1) is composed of a sealing top cover (101) and a mixing barrel (102), and the sealing top cover (101) and the mixing barrel (102) are connected in a movable manner. The mixing barrel (102) is also provided with a receiving hopper (106), a mixing upper rod (109) and a mixing lower rod (111). The receiving hopper (106) is connected to two auxiliary agent tanks (103) located on the top of the sealing top cover (101). The receiving hopper (106) and the mixing upper rod (109) are connected by a transmission rod (107). The mixing lower rod (111) is connected to the mixing upper rod (109) by a transmission connecting rod (110). The receiving hopper (106) is provided with two scrapers (116). The two scrapers (116) are symmetrically and movably arranged on the surface of the transmission rod (107). At the same time, the top of the two scrapers (116) is movably arranged in the first annular groove (139) opened on the bottom surface of the sealing top cover (101) through the telescopic member (118). Each scraper (116) is connected to a first connecting rod (108).

2. The coating additive adding device according to claim 1, characterized in that: The top of the receiving hopper (106) is also provided with a second annular groove (138), and the output end of the telescopic cylinder (115) located on the top surface of the sealing top cover (101) is movably located inside the second annular groove (138). At the same time, each scraper (116) has a first moving groove (119) and a second moving groove (122) respectively on the side surface near the transmission rod (107).

3. The coating additive adding device according to claim 2, characterized in that: The second moving groove (122) is used to slide the extrusion moving block (120), and the first moving groove (119) is used to slide the extrusion moving block (120) with a moving ball on the top. The extrusion moving block (120) is movably mounted on the surface of the transmission rod (107) by a connecting spring (121) at the bottom.

4. The coating additive adding device according to claim 1, characterized in that: A feeding cylinder (145) is movably arranged between the receiving hopper (106) and the mixing rod (109). The feeding cylinder (145) is used to feed the additive inside the receiving hopper (106) into the mixing rod (109). An annular gas storage box (143) is movably sleeved on the surface of the feeding cylinder (145). The annular gas storage box (143) is fixedly connected to the bottom surface of the sealing top cover (101) through a fixing frame (144). At the same time, a sealing block (123) is fixedly arranged on the side surface of each first connecting rod (108) away from the transmission rod (107). The sealing block (123) is used to seal the gap between the scraper (116) and the receiving hopper (106).

5. The coating additive adding device according to claim 4, characterized in that: The sealing top cover (101) is also provided with a storage slot (105). The storage slot (105) is provided with a drive gear (112), a driven gear (113) and a connecting ratchet (114). The driven gear (113) meshes with the drive gear (112) and the connecting ratchet (114) respectively.

6. The coating additive adding device according to claim 5, characterized in that: The connecting ratchet (114) is provided in several parts, and each of the connecting ratchet (114) meshes with the drive gear (112). The drive gear (112) is fixedly connected to the output end of the drive motor (104) provided on the top of the sealing cover (101).

7. The coating additive adding device according to claim 6, characterized in that: Each of the connecting ratchet (114) is provided with a compression box (124) below it, and each of the connecting ratchet (114) is movably disposed inside the compression box (124) via a second connecting rod (125). The compression box (124) is provided with an arc-shaped compression rod (127) and a compression airbag (128) respectively.

8. The coating additive adding device according to claim 7, characterized in that: The arc-shaped extrusion rod (127) and the second connecting rod (125) form a fixed connection. The arc-shaped extrusion rod (127) is used to extrude the extrusion airbag (128). At the same time, the bottom of the second connecting rod (125) is also fixedly connected to the worm spring (126).

9. A coating additive adding device according to claim 8, characterized in that: Each of the above-mentioned mixing rods (109) has a connecting slot (130) inside, and each connecting slot (130) has a feeding rod (129) movably installed inside. The feeding rod (129) is connected to the movable push rod (135) on the side near the transmission rod (107). The movable push rod (135) has a feeding cavity (137) inside.

10. A coating additive adding device according to claim 9, characterized in that: The movable push rod (135) is movably disposed inside the feeding rod (129) via a connecting ball (134) provided on the connection (136). The connecting ball (134) is used to adjust the angle of the movable push rod (135), and the feeding cavity (137) is used to connect to the inside of the feeding rod (129). In addition, the connection (136) of the movable push rod (135) is also fixedly connected to the bottom end of the first connecting rod (108).

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