A method for preparing an aqueous polyester resin coating and a production stirring apparatus

Abstract

The application discloses a preparation method of water-based polyester resin paint and a production stirring device, wherein the paint components comprise terephthalic acid, ethylene glycol, glycerol, succinic anhydride, sodium pyrophosphate, dibutyltin dilaurate, zinc acetate and deionized water; the production stirring device comprises a bottom plate and a peripheral structure, a material removing assembly, an adjusting assembly and a driving assembly; the application has a reasonable structure; the tooth plate is moved by rotating a handle, the whole moving plate is driven to move, then the main shaft on the moving plate moves upward, and when the stirring blade at the bottom end of the main shaft passes through the through slot on the material scraping plate, the high-viscosity resin remaining on the stirring blade can be scraped off by the material scraping plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water-based polyester resin coating preparation, in particular to a preparation method of water-based polyester resin coating and a production stirring device. BACKGROUND

[0002] Most industrial products will be widely used for surface coating with organic coatings, and decoration and protection are two purposes of coating. For example, automobile paint, wind turbine blades, diesel engines, 5G communication base stations, etc. Generally use polyurethane, polyacrylate, epoxy resin, alkyd resin, polyester resin and other types of coatings, the coating film appearance is full and bright, greatly improving the product grade, with strong protection and decoration effect. Among them, water-based polyester resin coating is a new coating product in recent years, which is prepared by alkyd condensation under water-based conditions, which has the advantages of high fullness of polyester resin film, high surface hardness, good toughness, low cost, etc. It also has the advantages of water-based coating, such as small odor, no VOCs emission, simple drying conditions, low energy consumption, environmental protection and energy saving; It is widely used in metal, plastic, packaging and other industrial coatings.

[0003] The most important thing in the processing of existing water-based polyester resin coatings is to synthesize and disperse the coatings through a stirrer. Generally, when the stirring is completed, the high-viscosity resin will adhere to the surface of the stirring paddle, and manual scraping with a shovel is required to remove the residue on the stirring paddle. If not cleaned in time, the resin will solidify, which will affect the product performance and the subsequent production of the stirring kettle. Therefore, it is necessary to invent an easy-to-remove production stirring device to meet the needs. SUMMARY

[0004] The purpose of the present application is to provide a preparation method of water-based polyester resin coating and a production stirring device, wherein the production stirring device realizes the movement of the tooth plate by rotating the handle, the movement of the tooth plate drives the whole movement of the moving plate, and then the main shaft on the moving plate moves upward. When the stirring blade at the bottom end of the main shaft passes through the through slot on the scraping plate, the high-viscosity resin remaining on the stirring paddle can be scraped off by the scraping plate.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a kind of production stirring equipment of water-based polyester resin coating, including bottom plate and peripheral structure, material removal subassembly, adjusting component and driving component.The installation hole is set in the position of the four corners of bottom plate, the top position of bottom plate is fixedly installed with mixing box, the surface of mixing box is fixedly installed with control console, the top of bottom plate is fixedly connected with support plate, movable slot is opened in support plate, the top of support plate is fixedly connected with top plate, the middle position of top plate is rotatably connected with main shaft, the top end position of main shaft is fixedly connected with limit sheet, the top end position of main shaft is fixedly connected with first tooth disc, the bottom end of main shaft extends into the mixing box, and the bottom end of main shaft is fixedly connected with stirring blade.Material removal subassembly is used to cooperate with the stirring blade, adjusting component is used to cooperate with the main shaft, and driving component is used to cooperate with the adjusting component.

[0006] Preferably, the material removal subassembly includes a scraping plate disposed between the support plates, a through slot is formed in the scraping plate, and a insertion slot is formed in the scraping plate.

[0007] Preferably, the two ends of the scraping plate are fixedly connected with connecting blocks, the connecting blocks are fixedly connected with sleeves, the sleeves are slidingly connected with the slide rods, the upper and lower ends of the slide rods are fixedly connected with first fixed seats, one end of the first fixed seat is fixedly connected with one side of the support plate, a first spring is sleeved on the slide rod, and the two ends of the first spring are fixedly connected with the top surface of the sleeve and one side of the first fixed seat.

[0008] Preferably, a baffle is movably inserted in the insertion slot, a shaft pin is fixedly connected with the top end of the baffle, a limit seat is fixedly connected with the scraping plate, a rotating shaft is fixedly connected with the top end of the limit seat, a pull plate is rotatably connected with the rotating shaft, a guide slot is formed in one end of the pull plate, and the two ends of the shaft pin are slidingly connected in the guide slot.

[0009] Preferably, the adjusting component includes a moving plate rotatably connected with the main shaft, the top end of the moving plate is attached to the bottom end of the limit sheet, the two ends of the moving plate are formed with circular holes, a fixed rod is movably inserted in the circular hole, a baffle is fixedly connected with the top end of the fixed rod, the bottom end of the fixed rod is fixedly connected with a second fixed seat, the second fixed seat is fixedly connected with the top plate, a second spring is sleeved on the fixed rod, and the two ends of the second spring are fixedly connected with the bottom end of the baffle and the top surface of the moving plate.

[0010] Preferably, a side plate is sleeved on the moving plate, the two ends of the side plate are fixedly connected with the bottom end of the baffle and the top surface of the moving plate, one side of the moving plate is fixedly connected with a side plate, one end of the side plate is fixedly connected with a tooth plate, and a rib is fixedly connected between the side plate and the tooth plate.

[0011] Preferably, the top plate is fixedly connected with a pair of third fixing bases, a adjusting shaft is rotatably connected to the pair of third fixing bases, a second toothed disc is fixedly connected to the middle part of the adjusting shaft, the second toothed disc is meshed with the toothed plate, and a handle is fixedly connected to one end of the adjusting shaft.

[0012] Preferably, the driving assembly comprises a mounting plate fixedly installed at the top end of the top plate, a driving motor fixedly connected to the inside of the mounting plate, a transmission shaft fixedly connected to the output end of the driving motor, and a shaft seat sleeved on the transmission shaft and fixedly connected to one end of the mounting plate.

[0013] Preferably, the bottom end of the transmission shaft is fixedly connected with a third toothed disc, and the third toothed disc is meshed with the first toothed disc.

[0014] The application further provides a water-based polyester resin paint, which comprises 100-120 parts of terephthalic acid, 15-20 parts of ethylene glycol, 18-22 parts of glycerol, 120-140 parts of succinic anhydride, 1-2 parts of sodium pyrophosphate, 1-2 parts of dibutyltin dilaurate, 0.5-1 part of zinc acetate and 200-400 parts of deionized water.

[0015] The preparation method comprises the following steps: S1, heating terephthalic acid, ethylene glycol, glycerol, zinc acetate, sodium pyrophosphate and dibutyltin dilaurate at 150-170 DEG C for 30-40 minutes, distilling the mixture at 220-230 DEG C, 9*10 4 Pa for 2-4 hours to obtain the water-based polyester resin;

[0016] S2, then mixing and stirring the water-based polyester resin with succinic anhydride and deionized water to obtain the water-based polyester resin paint.

[0017] In conclusion, the application has the following technical effects:

[0018] 1. The application has a reasonable structure, a through groove is formed in the scraping plate, a stirring blade is fixedly connected to the bottom end of the main shaft, and the stirring blade is scraped after stirring work, the one end of the pull plate is pulled upward, a guide groove is formed in the other end of the pull plate, a shaft pin is slidably connected to the inside of the guide groove, the baffle on the shaft pin slides in the insertion groove through the movement of the pull plate, the bottom end of the baffle extends out of the insertion groove, the stirring blade is stopped when the stirring blade on the main shaft rotates to the baffle, the stirring blade is blocked by the baffle, the main shaft is pulled upward, and the stirring blade is scraped by the scraping plate when the stirring blade passes through the limiting seat.

[0019] 2、The handle is rotated when the main shaft is pulled upwards, the rotation of the handle drives the adjusting shaft to rotate, the second tooth disc is fixedly connected to the middle end of the adjusting shaft, the second tooth disc is meshed with the tooth plate, the rotation of the second tooth disc drives the tooth plate to move upwards, the movement of the tooth plate drives the moving plate to move through the side plate, the moving plate is sleeved on the main shaft, the moving plate moves to slide on the fixed rod, the stability of the overall movement of the moving plate is improved, then the upward movement of the moving plate drives the main shaft to move upwards, and the attached matters on the stirring blade are removed conveniently.

[0020] 3、The stirring blade stirs the inside of the mixing box, the console is operated to drive the driving motor to work, the output end of the driving motor is fixedly connected with the transmission shaft, the transmission shaft is rotated through the operation of the driving motor, the third tooth disc is fixedly connected to the bottom end of the transmission shaft, the third tooth disc is rotated through the rotation of the transmission shaft, the third tooth disc is meshed with the first tooth disc, and the rotation of the third tooth disc drives the main shaft to rotate through the first tooth disc, so that the stirring blade at the bottom end of the main shaft stirs the resin in the mixing box. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a schematic view of the three-dimensional structure of the mixing box;

[0023] Figure 2 It is a schematic view of the three-dimensional structure of the mixing box;

[0024] Figure 3 It is a schematic view of the three-dimensional structure of the mixing box;

[0025] Figure 4 It is a schematic view of the three-dimensional structure of the scraping plate;

[0026] Figure 5 It is a schematic view of the three-dimensional structure of the baffle;

[0027] Figure 6 It is a schematic view of the three-dimensional structure of the moving plate;

[0028] Figure 7 It is a schematic view of the three-dimensional structure of the top plate from the bottom;

[0029] Figure 8 It is Figure 2 The enlarged structure schematic view at A in the middle.

[0030] As shown in the figure: 1, the base plate; 101, the mounting hole; 102, the mixing box; 103, the control console; 104, the support plate; 105, the movable slot; 106, the top plate; 107, the main shaft; 108, the limiting piece; 109, the first tooth disc; 110, the stirring blade; 2, the scraping plate; 201, the through slot; 202, the insertion slot; 203, the connecting block; 204, the collar; 205, the sliding rod; 206, the first fixed seat; 207, the first spring; 208, the baffle; 209, the shaft pin; 210, the limiting seat; 211, the rotating shaft; 212, the pull plate; 213, the guide slot; 3, the moving plate; 301, the round hole; 302, the fixed rod; 303, the baffle; 304, the second fixed seat; 305, the second spring; 306, the side plate; 307, the toothed plate; 308, the rib; 309, the third fixed seat; 310, the adjusting shaft; 311, the second tooth disc; 312, the handle; 313, the mounting plate; 314, the driving motor; 315, the transmission shaft; 316, the shaft seat; 317, the third tooth disc. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Reference Figures 1-8 The water-based polyester resin paint production stirring device shown includes a base plate 1, mounting holes 101 are formed at the corners of the base plate 1, a mixing box 102 is fixedly installed at the top of the base plate 1, a control console 103 is fixedly installed on the surface of the mixing box 102, support plates 104 are fixedly connected to the top ends of the base plate 1 on both sides, movable slots 105 are formed in the support plates 104, top plates 106 are fixedly connected to the top ends of the support plates 104, main shafts 107 are rotatably connected to the middle positions of the top plates 106, limiting pieces 108 are fixedly connected to the top end positions of the main shafts 107, first tooth discs 109 are fixedly connected to the top end positions of the main shafts 107, the bottom ends of the main shafts 107 extend into the mixing box 102, and stirring blades 110 are fixedly connected to the bottom ends of the main shafts 107. The device also includes a material removing assembly, an adjusting assembly, and a driving assembly, the material removing assembly is used in cooperation with the stirring blades 110, the adjusting assembly is used in cooperation with the main shafts 107, and the driving assembly is used in cooperation with the adjusting assembly.

[0033] Specifically, it needs to be explained here that the driving motor 314 and the control console 103 are electrically connected through wires, and the specific working principle between them is referred to by the prior art, which will not be described in detail here. The operation of the driving motor 314 facilitates the stirring blade 110 at the bottom end of the main shaft 107 to stir the resin mixture inside the mounting hole 101.

[0034] As an embodiment in this embodiment, the material feeding assembly comprises a material scraping plate 2 arranged between the support plates 104, the material scraping plate 2 is provided with a through slot 201, the material scraping plate 2 is provided with an insertion slot 202, the through slot 201 and the insertion slot 202 are in communication with each other, both ends of the material scraping plate 2 are fixedly connected with a connecting block 203, the connecting block 203 is fixedly connected with a sleeve ring 204, the sleeve ring 204 is slidingly connected with a sliding rod 205, both ends of the sliding rod 205 are fixedly connected with a first fixed seat 206, one end of the first fixed seat 206 is fixedly connected with one side of the support plate 104, the sliding rod 205 is sleeved with a first spring 207, both ends of the first spring 207 are fixedly connected with the top surface of the sleeve ring 204 and one side of the first fixed seat 206, respectively, a baffle 208 is movably inserted into the insertion slot 202, the top end of the baffle 208 is fixedly connected with a shaft pin 209, the material scraping plate 2 is fixedly connected with a limiting seat 210, the top end of the limiting seat 210 is fixedly connected with a rotating shaft 211, the rotating shaft 211 is rotatably connected with a pull plate 212, one end of the pull plate 212 is provided with a guide slot 213, both ends of the shaft pin 209 are slidingly connected in the guide slot 213.

[0035] Specifically, the through slot 201 is arranged on the material scraping plate 2, the stirring blade 110 is fixedly connected at the bottom end of the main shaft 107, when the attached objects are removed after the stirring work of the stirring blade 110, first pull one end of the pull plate 212 upward, the guide slot 213 is arranged at the other end of the pull plate 212, and the shaft pin 209 is slidingly connected in the guide slot 213, the movement of the pull plate 212 makes the baffle 208 on the shaft pin 209 slide in the insertion slot 202, so that the bottom end of the baffle 208 extends out of the insertion slot 202, then the stirring blade 110 on the main shaft 107 rotates to the baffle 208, the baffle 208 is used to block the stirring blade 110, then the main shaft 107 is pulled up, when the stirring blade 110 passes through the limiting seat 210, the attached objects are scraped off by the material scraping plate 2.

[0036] In one embodiment of this invention, the adjusting assembly includes a movable plate 3 rotatably connected to the main shaft 107. The top end of the movable plate 3 is attached to the bottom end of the limiting plate 108. Circular holes 301 are formed at both ends of the movable plate 3. A fixing rod 302 is movably inserted into the circular holes 301. A baffle 303 is fixedly connected to the top end of the fixing rod 302. The bottom end of the fixing rod 302 is fixedly connected to a second fixing seat 304, which is fixedly connected to a top plate 106. A second spring 305 is sleeved on the fixing rod 302. The two ends of the second spring 305 are fixedly connected to the bottom end of the baffle 303 and the top surface of the movable plate 3, respectively. A side plate 306 is fitted on the top plate 3. The two ends of the side plate 306 are fixedly connected to the bottom end of the baffle 303 and the top surface of the movable plate 3, respectively. The side plate 306 is fixedly connected to one side of the movable plate 3. A toothed plate 307 is fixedly connected to one end of the side plate 306. A rib 308 is fixedly connected between the side plate 306 and the toothed plate 307. A pair of third fixed seats 309 are fixedly connected to the top plate 106. An adjusting shaft 310 is rotatably connected to the pair of third fixed seats 309. A second toothed disc 311 is fixedly connected to the middle position of the adjusting shaft 310. The second toothed disc 311 and the toothed plate 307 mesh with each other. A handle 312 is fixedly connected to one end of the adjusting shaft 310.

[0037] Specifically, when the main shaft 107 is pulled upward, the handle 312 is rotated, which drives the adjusting shaft 310 to rotate. A second gear 311 is fixedly connected at the middle position of the adjusting shaft 310, and the second gear 311 meshes with the gear plate 307. The rotation of the second gear 311 causes the gear plate 307 to move upward. The movement of the gear plate 307 drives the moving plate 3 to move through the side plate 306. The moving plate 3 is sleeved on the main shaft 107. The movement of the moving plate 3 facilitates sliding on the fixed rod 302, increasing the overall stability of the movement of the moving plate 3. Then, the upward movement of the moving plate 3 drives the main shaft 107 to move upward, which facilitates the removal of the attached substances on the stirring blade 110.

[0038] As one embodiment of this invention, the drive assembly includes a mounting plate 313 fixedly mounted on the top of the top plate 106. A drive motor 314 is fixedly connected inside the mounting plate 313. A transmission shaft 315 is fixedly connected to the output end of the drive motor 314. A bearing seat 316 is sleeved on the transmission shaft 315. One end of the bearing seat 316 is fixedly connected to the mounting plate 313. A third gear disk 317 is fixedly connected to the bottom end of the transmission shaft 315. The third gear disk 317 meshes with the first gear disk 109.

[0039] Specifically, the stirring blade 110 stirs the inside of the mixing box 102, the console 103 is operated to drive the motor 314 to operate, the output end of the motor 314 is fixedly connected with a transmission shaft 315, the transmission shaft 315 is rotated by the operation of the motor 314, the third tooth disc 317 is fixedly connected to the bottom end of the transmission shaft 315, the third tooth disc 317 is rotated by the rotation of the transmission shaft 315, the third tooth disc 317 is engaged with the first tooth disc 109, the rotation of the third tooth disc 317 rotates the main shaft 107 through the first tooth disc 109, so that the stirring blade 110 at the bottom end of the main shaft 107 stirs the resin in the mixing box 102.

[0040] The working principle of the present application is that the through slot 201 is formed in the scraping plate 2, the stirring blade 110 is fixedly connected to the bottom end of the main shaft 107, the attached matter is scraped off after the stirring work of the stirring blade 110, one end of the pull plate 212 is first pulled upward, the guide slot 213 is formed in the other end of the pull plate 212, the shaft pin 209 is slidably connected in the guide slot 213, the baffle 208 on the shaft pin 209 is slid in the insertion slot 202 by the movement of the pull plate 212, so that the bottom end of the baffle 208 extends out of the insertion slot 202, then the stirring blade 110 on the main shaft 107 is rotated to the baffle 208, the stirring blade 110 is blocked by the baffle 208, then the main shaft 107 is pulled upward, the stirring blade 110 passes through the limiting seat 210, and the attached matter is scraped off by the scraping plate 2.

[0041] When the main shaft 107 is pulled upward, the handle 312 is rotated, the handle 312 drives the adjusting shaft 310 to rotate, the second tooth disc 311 is fixedly connected to the middle end position of the adjusting shaft 310, the second tooth disc 311 is engaged with the tooth plate 307, the tooth plate 307 is moved upward by the rotation of the second tooth disc 311, the movement of the tooth plate 307 drives the movement plate 3 to move through the side plate 306, the movement plate 3 is sleeved on the main shaft 107, the movement plate 3 moves to slide on the fixed rod 302, the stability of the movement of the movement plate 3 is increased, then the movement plate 3 moves upward to drive the main shaft 107 to move upward, the attached matter on the stirring blade 110 is removed.

[0042] When the stirring blade 110 stirs the inside of the mixing box 102, the console 103 is operated to drive the motor 314 to operate, the output end of the motor 314 is fixedly connected with a transmission shaft 315, the transmission shaft 315 is rotated through the operation of the motor 314, the third gear plate 317 is fixedly connected to the bottom end of the transmission shaft 315, the third gear plate 317 is rotated through the rotation of the transmission shaft 315, the third gear plate 317 and the first gear plate 109 are engaged with each other, the rotation of the third gear plate 317 drives the main shaft 107 to rotate through the first gear plate 109, so that the stirring blade 110 at the bottom end of the main shaft 107 stirs the resin inside the mixing box 102.

[0043] The application further provides a water-based polyester resin paint, comprising: 100-120 parts of terephthalic acid, 15-20 parts of ethylene glycol, 18-22 parts of glycerol, 120-140 parts of succinic anhydride, 1-2 parts of sodium pyrophosphate, 1-2 parts of dibutyltin dilaurate, 0.5-1 part of zinc acetate and 200-400 parts of deionized water.

[0044] The preparation method comprises the following steps: S1, heating terephthalic acid, ethylene glycol, glycerol, zinc acetate, sodium pyrophosphate and dibutyltin dilaurate at 150-170 DEG C for 30-40 minutes, distilling at 220-230 DEG C, 9x10 4 Pa for 2-4 hours to obtain the water-based polyester resin;

[0045] S2, then mixing and stirring the water-based polyester resin with succinic anhydride and deionized water at a stirring rate of 150 rpm to obtain the water-based polyester resin paint.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the application, and not for limiting the application, although the application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application, should be included in the protection scope of the application.

Claims

1. A production stirring apparatus of an aqueous polyester resin paint, which is manufactured using the following apparatus, comprising a base plate (1), characterized in that, The bottom plate (1) is provided with mounting holes (101) at the four corners, a mixing box (102) is fixedly installed at the top of the bottom plate (1), a control console (103) is fixedly installed on the surface of the mixing box (102), support plates (104) are fixedly connected to the top of the bottom plate (1), movable grooves (105) are formed in the support plates (104), a top plate (106) is fixedly connected to the top of the support plates (104), a main shaft (107) is rotatably connected to the middle of the top plate (106), a limiting piece (108) is fixedly connected to the top end of the main shaft (107), a first toothed disc (109) is fixedly connected to the top end of the main shaft (107), the bottom end of the main shaft (107) extends into the mixing box (102), and a stirring blade (110) is fixedly connected to the bottom end of the main shaft (107); Further comprising a material removing assembly, an adjusting assembly and a driving assembly, the material removing assembly is used in cooperation with the stirring blade (110), the adjusting assembly is used in cooperation with the main shaft (107), and the driving assembly is used in cooperation with the adjusting assembly; The material removing assembly comprises a material scraping plate (2) arranged between the support plates (104), a through groove (201) is formed in the material scraping plate (2), and an insertion groove (202) is formed in the material scraping plate (2), the through groove (201) and the insertion groove (202) are in communication with each other; Both ends of the material scraping plate (2) are fixedly connected with connecting blocks (203), the connecting blocks (203) are fixedly connected with sleeve rings (204), the sleeve rings (204) are slidably connected to slide rods (205), the slide rods (205) are fixedly connected with first fixed seats (206) at the top and bottom ends, one end of the first fixed seat (206) is fixedly connected to one side of the support plate (104), the slide rods (205) are sleeved with first springs (207), and both ends of the first springs (207) are fixedly connected with the top surface of the sleeve ring (204) and one side of the first fixed seat (206); The adjusting assembly comprises a moving plate (3) rotatably connected to the main shaft (107), the top end of the moving plate (3) is attached to the bottom end of the limiting piece (108), both ends of the moving plate (3) are provided with circular holes (301), fixed rods (302) are movably inserted into the circular holes (301), the top end of the fixed rod (302) is fixedly connected with a baffle (303), the bottom end of the fixed rod (302) is fixedly connected to a second fixed seat (304), the second fixed seat (304) is fixedly connected to the top plate (106), the fixed rod (302) is sleeved with a second spring (305), and both ends of the second spring (305) are fixedly connected with the bottom end of the baffle (303) and the top surface of the moving plate (3).

2. The stirring apparatus for producing a water-based polyester resin paint according to claim 1, characterized by: The baffle (208) is movably inserted in the slot (202), the top end of the baffle (208) is fixedly connected with a shaft pin (209), a limiting seat (210) is fixedly connected on the scraping plate (2), the top end of the limiting seat (210) is fixedly connected with a rotating shaft (211), the rotating shaft (211) is rotatably connected with a pull plate (212), a guide slot (213) is formed in one end of the pull plate (212), and the both ends of the shaft pin (209) are slidably connected in the guide slot (213).

3. The stirring apparatus for producing a water-based polyester resin paint according to claim 1, characterized by: The adjusting assembly comprises a moving plate (3) rotatably connected to the main shaft (107), the top end of the moving plate (3) is attached to the bottom end of the limiting piece (108), circular holes (301) are formed in the both ends of the moving plate (3), a fixed rod (302) is movably inserted in the circular hole (301), a baffle (303) is fixedly connected to the top end of the fixed rod (302), the bottom end of the fixed rod (302) is fixedly connected to a second fixed seat (304), the second fixed seat (304) is fixedly connected to the top plate (106), a second spring (305) is sleeved on the fixed rod (302), and the both ends of the second spring (305) are fixedly connected with the bottom end of the baffle (303) and the top surface of the moving plate (3) respectively.

4. The stirring apparatus for producing a water-based polyester resin paint according to claim 3, characterized by: A side plate (306) is sleeved on the moving plate (3), the both ends of the side plate (306) are fixedly connected with the bottom end of the baffle (303) and the top surface of the moving plate (3) respectively, one side of the moving plate (3) is fixedly connected with the side plate (306), one end of the side plate (306) is fixedly connected with a toothed plate (307), and a rib (308) is fixedly connected between the side plate (306) and the toothed plate (307).

5. The stirring apparatus for producing a water-based polyester resin paint according to claim 4, characterized by: A pair of third fixed seats (309) are fixedly connected to the top plate (106), an adjusting shaft (310) is rotatably connected to the pair of third fixed seats (309), a second toothed disc (311) is fixedly connected to the middle part of the adjusting shaft (310), the second toothed disc (311) is meshed with the toothed plate (307), and a handle (312) is fixedly connected to one end of the adjusting shaft (310).

6. The stirring apparatus for producing a water-based polyester resin paint according to claim 5, characterized by: The driving assembly comprises a mounting plate (313) fixedly installed at the top end of the top plate (106), a driving motor (314) is fixedly connected in the mounting plate (313), a transmission shaft (315) is fixedly connected to the output end of the driving motor (314), a shaft seat (316) is sleeved on the transmission shaft (315), and one end of the shaft seat (316) is fixedly connected to the mounting plate (313).

7. The stirring apparatus for producing a water-based polyester resin paint according to claim 6, characterized by: A third toothed disc (317) is fixedly connected to the bottom end of the transmission shaft (315), and the third toothed disc (317) is meshed with the first toothed disc (109).

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