Automatic raw material crushing and grinding machine for preparing water-based paint

Abstract

The utility model discloses an automatic raw material crushing and grinding machine for water-based paint preparation, which is characterized in that the top surface of a fixed base is fixedly connected with an unloading disc, the top surface of the unloading disc is provided with a grinding assembly, the back of the grinding assembly is fixedly connected to the front side surface of a fixed connecting piece, and the fixed connecting piece is fixedly connected to the front side surface of the upper end of a vertical fixed frame; the transmission assembly drives the friction disc to rotate so as to continuously push raw materials located on the inner side of the upper end of the feeding hopper and the inner side of the upper end of the vertical fixing frame to flow into the grinding assembly, automatic feeding of a large number of raw materials is achieved, and blockage caused by accumulation of the large number of raw materials in the grinding assembly at a time is avoided. And vertical reciprocating extrusion is conducted through the lower half part of the extrusion assembly of the synchronous belt of the transmission assembly, a cross-shaped fixing plate and a plurality of extrusion blocks are driven to rotate through a threaded hole and a lead screw, the raw materials stacked on the top face of the material guide disc are further pushed and flattened, and the crushing and grinding efficiency of the raw materials is improved while raw material stacking is avoided.

Description

Technical Field

[0001] The utility model relates to the relevant field of water-based paint preparation, in particular to an automatic raw material crushing and grinding machine for water-based paint preparation. Background Art

[0002] Water-based paint is a type of paint that uses water as a solvent. Compared with traditional solvent-based paints (such as petroleum solvent-based paints), its main component is water. Water-based paint is widely used in indoor and outdoor decorative coatings, furniture manufacturing, automotive painting and other fields due to its low volatile organic compound (VOC) content, good environmental protection, non-toxic and odorless characteristics.

[0003] The existing automatic crushing and grinding equipment relies on the natural fall of raw materials into the crushing and grinding part. Although its structure is simple and easy to maintain, there is still room for improvement in terms of efficiency. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an automatic crushing and grinding machine for raw materials used in the preparation of water-based paint.

[0005] The utility model is realized by constructing an automatic raw material crushing and grinding machine for preparing water-based paint, the device comprising:

[0006] A fixed base, a top surface of which is fixedly connected to a discharge tray, and a grinding assembly is provided on the top surface of the discharge tray;

[0007] The back of the grinding assembly is fixedly connected to the front side of the fixed connecting member, the fixed connecting member is fixedly connected to the front side of the upper end of the upright fixing frame, the upper end of the upright fixing frame is fixedly connected with a feed funnel, and the lower end of the upright fixing frame is fixedly connected to the rear of the top surface of the fixed base; and further comprising:

[0008] A transmission assembly, the transmission assembly being fixedly connected to the top surface of the upright fixing frame;

[0009] An extrusion assembly, wherein the extrusion assembly is arranged at the front end of the transmission assembly;

[0010] A flat channel is provided inside the upper end of the upright fixing frame, and the flat channel at the upper end of the upright fixing frame is communicated with the feed hopper and the discharge port. The internal slideway of the discharge port is inclined downward, and the discharge port is arranged on the inner side of the upper part of the grinding assembly.

[0011] Preferably, the transmission assembly comprises:

[0012] A friction disc, the friction disc is rotatably connected to the right part of the bottom of the inner side of the flat channel at the upper end of the upright fixing frame, and a certain distance is left between the left end of the friction disc and the left side surface of the inner side of the flat channel at the upper end of the upright fixing frame;

[0013] The top surface of the friction disc is fixedly connected to the lower end of the transmission shaft, and the lower end of the transmission shaft passes through and is rotatably connected to the top surface of the upright fixing frame.

[0014] Preferably, a worm wheel is fixedly connected to the upper end of the transmission shaft, a worm is meshed with the front end of the worm wheel, the left and right ends of the worm pass through and are rotatably connected to the inner sides of the upper ends of two first fixing members, the left and right ends of the worm are fixedly connected to pulleys, and the two first fixing members are fixedly connected to the left and right parts of the top surface of the transverse fixing frame.

[0015] Preferably, a transverse fixing plate is fixedly connected to the right side of the transverse fixing frame, a second driving motor is fixedly connected to the top surface of the transverse fixing plate, the output shaft of the second driving motor is fixedly connected to the middle of the right side surface of the pulley located at the right end of the worm, the two pulleys are sleeved on the lower ends of the two transmission belts, and a threaded hole is provided on the top surface of the middle part of the front end of the transverse fixing frame.

[0016] Preferably, the extrusion assembly comprises:

[0017] An upright support column, the lower end of which is fixedly connected to the left and right parts of the top surface of the front end of the transverse fixing frame;

[0018] Among them, the inner sides of the upper ends of the two upright support columns are rotatably connected with a transmission short shaft, the inner sides of the two transmission short shafts are fixedly connected to the outer sides of the upper ends of the connecting rods, and the lower ends of the two connecting rods are fixedly connected to the left and right ends of the connecting cross bar.

[0019] Preferably, the middle part of the connecting cross bar passes through and is rotatably connected to the upper end of the upright connecting rod, the lower end of the upright connecting rod is fixedly connected to the top surface of the first rotating connecting member, the inner side of the lower end of the first rotating connecting member is rotatably connected to the left and right side surfaces of the upper end of the lower rotating connecting piece, the bottom of the lower end of the lower rotating connecting piece is rotatably connected to the top surface of the upper end of the screw rod, the upper end of the screw rod passes through and is threadedly connected to the inner side of the threaded hole, and the lower end of the screw rod is fixedly connected to the second fixing member.

[0020] Preferably, a return spring is sleeved on the lower end of the screw rod, the upper end of the return spring is in contact with the bottom of the front end of the transverse fixing frame, the lower end of the return spring is in contact with the top surface of the second fixing piece, the lower end of the second fixing piece is fixedly connected to the middle of the top surface of the cross fixing plate, the middle of the bottom of the cross fixing plate is fixedly connected to an intermediate extrusion block, and the bottoms of the four branches of the cross fixing plate are rotatably connected to peripheral extrusion blocks through second rotating connecting pieces.

[0021] Preferably, the grinding assembly comprises:

[0022] An outer grinding disc, the back of which is fixedly connected to the front end of the fixed connection piece;

[0023] A first drive motor, wherein the first drive motor is fixedly connected to the middle of the bottom of the fixed base;

[0024] Among them, the output shaft of the first driving motor passes through and is rotatably connected to the middle part of the bottom of the fixed base and the middle part of the bottom of the discharge plate, and the output shaft of the first driving motor is fixedly connected to the middle part of the bottom of the inner grinding disc, the inner grinding disc is located on the inner side of the lower end of the outer grinding disc, and the bottom of the outer grinding disc is rotatably connected to the middle part of the top surface of the discharge plate, a certain distance is left between the inner side of the lower end of the outer grinding disc and the outer side of the inner grinding disc, and the inner side of the lower end of the outer grinding disc and the outer side of the inner grinding disc are rough, a guide disc is fixedly connected to the top surface of the inner grinding disc, and the lower half of the extrusion assembly is located on the inner side of the upper end of the outer grinding disc.

[0025] The utility model has the following advantages: The utility model provides an automatic raw material crushing and grinding machine for preparing water-based paint through improvement, which has the following improvements compared with the same type of equipment:

[0026] The utility model discloses an automatic crushing and grinding machine for raw materials used in the preparation of water-based coatings. The friction disc is driven to rotate by a transmission component, thereby continuously pushing the raw materials located on the inner side of the upper end of the feed funnel and the upright fixed frame into the grinding component, so as to realize the automatic supply of a large amount of raw materials, and avoid a large amount of raw materials being accumulated inside the grinding component at one time and causing blockage. The lower half of the extrusion component of the transmission component synchronous belt is used for vertical reciprocating extrusion, and the cross fixing plate and a plurality of extrusion blocks are driven to rotate through threaded holes and screw rods, so as to further push and flatten the raw materials accumulated on the top surface of the guide plate, thereby avoiding the accumulation of raw materials and accelerating the crushing and grinding efficiency of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the internal structure of the grinding assembly of the utility model;

[0029] Figure 3 It is a schematic diagram of the transmission assembly structure of the utility model;

[0030] Figure 4 It is a schematic diagram of the structure of the extrusion assembly of the utility model.

[0031] Among them: fixed base 101, discharge plate 102, grinding assembly 103, fixed connector 104, upright fixed frame 105, feed hopper 106, discharge port 107, outer grinding disc 108, first drive motor 109, inner grinding disc 110, guide disc 111, transmission assembly 201, friction disc 202, transmission shaft 203, worm wheel 204, worm 205, first fixing member 206, pulley 207, horizontal fixing frame 208, horizontal fixing plate - 209, the second driving motor-210, the transmission belt-211, the threaded hole-212, the extrusion assembly-301, the upright support column-302, the transmission short shaft-303, the connecting rod-304, the connecting cross bar-305, the upright connecting rod-306, the first rotating connecting member-307, the screw rod-308, the second fixing member-309, the return spring-310, the cross fixing plate-311, the middle extrusion block-312, the second rotating connecting member-313, the peripheral extrusion block-314, and the lower connecting connecting plate-315. DETAILED DESCRIPTION

[0032] The following is combined with Figures 1 to 4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0033] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Embodiment 1:

[0036] See also Figure 1 , Figure 2 and Figure 3 The utility model discloses an automatic raw material crushing and grinding machine for preparing water-based paint, comprising:

[0037] A fixed base 101, a discharge tray 102 is fixedly connected to the top surface of the fixed base 101, temporarily storing the crushed and ground raw materials, and a grinding assembly 103 is provided on the top surface of the discharge tray 102;

[0038] The back of the grinding assembly 103 is fixedly connected to the front side of the fixed connection member 104, the fixed connection member 104 is fixedly connected to the front side of the upper end of the upright fixing frame 105, the upper end of the upright fixing frame 105 is fixedly connected with a feed hopper 106 to temporarily pile up raw materials, and the lower end of the upright fixing frame 105 is fixedly connected to the rear of the top surface of the fixed base 101; the transmission assembly 201 is fixedly connected to the top surface of the upright fixing frame 105;

[0039] An extrusion assembly 301, the extrusion assembly 301 is arranged at the front end of the transmission assembly 201;

[0040] A flat channel is provided inside the upper end of the upright fixed frame 105, and the flat channel at the upper end of the upright fixed frame 105 is communicated with the feed funnel 106 and the discharge port 107. The internal slideway of the discharge port 107 is inclined downward, and the discharge port 107 is arranged on the inner side of the upper part of the grinding component 103 so that the raw materials can flow into the grinding component 103.

[0041] The transmission assembly 201 includes:

[0042] The friction disc 202 is rotatably connected to the right part of the bottom of the inner side of the flat channel at the upper end of the upright fixing frame 105, and a certain distance is left between the left end of the friction disc 202 and the left side of the inner side of the flat channel at the upper end of the upright fixing frame 105, so as to leave enough passage to ensure that the raw material can cooperate with the friction disc 202 to be blocked and stagnant, so as to facilitate the friction disc 202 to continuously push the raw material into the grinding assembly 103 in a quantitative manner;

[0043] The top surface of the friction disc 202 is fixedly connected to the lower end of the transmission shaft 203, the lower end of the transmission shaft 203 penetrates and is rotatably connected to the top surface of the upright fixing frame 105, the upper end of the transmission shaft 203 is fixedly connected to a worm wheel 204, the front end of the worm wheel 204 is meshed with a worm 205, the left and right ends of the worm 205 penetrate and are rotatably connected to the inner side of the upper ends of the two first fixing members 206, the left and right ends of the worm 205 are fixedly connected to pulleys 207, the two first fixing members 206 are fixedly connected to the left and right parts of the top surface of the transverse fixing frame 208, and the transverse fixing frame 208 is fixedly connected to the left and right parts of the top surface of the transverse fixing frame 208. 08 is fixedly connected to the right side with a transverse fixing plate 209, and the top surface of the transverse fixing plate 209 is fixedly connected to the second driving motor 210 to provide power. The output shaft of the second driving motor 210 is fixedly connected to the middle of the right side of the pulley 207 located at the right end of the worm 205. The two pulleys 207 are sleeved on the lower ends of the two transmission belts 211. A threaded hole 212 is provided on the top surface of the middle part of the front end of the transverse fixing frame 208 to cooperate with the screw rod 308 to drive the middle extrusion block 312 and the peripheral extrusion block 314 to rotate while vertically displacing.

[0044] The grinding assembly 103 includes:

[0045] An outer grinding disc 108, the back of which is fixedly connected to the front end of the fixed connection member 104;

[0046] A first driving motor 109, the first driving motor 109 is fixedly connected to the middle of the bottom of the fixed base 101;

[0047] The output shaft of the first drive motor 109 passes through and is rotatably connected to the middle part of the bottom of the fixed base 101 and the middle part of the bottom of the discharge plate 102, and the output shaft of the first drive motor 109 is fixedly connected to the middle part of the bottom of the inner grinding disc 110, the inner grinding disc 110 is located on the inner side of the lower end of the outer grinding disc 108, and the bottom of the outer grinding disc 108 is rotatably connected to the middle part of the top surface of the discharge plate 102, a certain distance is left between the inner side of the lower end of the outer grinding disc 108 and the outer side of the inner grinding disc 110, and the inner side of the lower end of the outer grinding disc 108 and the outer side of the inner grinding disc 110 have rough surfaces, a material guide disc 111 is fixedly connected to the top surface of the inner grinding disc 110, and the lower half of the extrusion assembly 301 is located on the inner side of the upper end of the outer grinding disc 108.

[0048] The working principle of the automatic crushing and grinding machine for raw materials used in the preparation of water-based coatings based on Example 1 is as follows:

[0049] The output shaft of the first driving motor 109 continuously drives the inner grinding disc 110 and the guide disc 111 to rotate on the inner side of the discharge disc 102 and the lower end of the outer grinding disc 108, and then the outer grinding disc 108 and the inner grinding disc 110 cooperate with each other to crush and grind the raw materials. At this time, the staff pours the raw materials into the feed hopper 106, and the raw materials flow into the grinding assembly 103 through the feed hopper 106 and the flat channel inside the upper end of the upright fixed frame 105 and the discharge port 107. When a large amount of raw materials exists in the flat channel inside the upper end of the upright fixed frame 105, the friction disc 202 blocks the raw materials, causing them to be blocked and stagnant.

[0050] The output shaft of the second driving motor 210 drives the pulley 207 to rotate, thereby driving the worm 205 to rotate, thereby driving the worm wheel 204 to rotate, and then driving the friction disk 202 to rotate through the transmission shaft 203. The rotating friction disk 202 continuously pushes the blocked raw materials, so that the raw materials continuously and quantitatively flow into the grinding component 103, avoiding a large amount of raw materials from accumulating inside the grinding component 103 at one time and causing blockage.

[0051] Embodiment 2:

[0052] See also Figure 1 , Figure 3 and Figure 4 The utility model is an automatic raw material crushing and grinding machine for preparing water-based coatings. Compared with the first embodiment, the present embodiment further includes: the extrusion component 301 includes:

[0053] An upright support column 302, the lower end of which is fixedly connected to the left and right parts of the top surface of the front end of the horizontal fixing frame 208;

[0054] Among them, the inner sides of the upper ends of the two upright support columns 302 are rotatably connected with the transmission short shafts 303, the inner sides of the two transmission short shafts 303 are fixedly connected to the outer sides of the upper ends of the connecting rods 304, the lower ends of the two connecting rods 304 are fixedly connected to the left and right ends of the connecting cross bar 305, the middle part of the connecting cross bar 305 passes through and is rotatably connected to the upper end of the upright connecting rod 306, the lower end of the upright connecting rod 306 is fixedly connected to the top surface of the first rotating connecting member 307, the inner side of the lower end of the first rotating connecting member 307 is rotatably connected to the left and right sides of the upper end of the lower rotating connecting piece 315, the bottom of the lower end of the lower rotating connecting piece 315 is rotatably connected to the top surface of the upper end of the screw rod 308, the upper end of the screw rod 308 passes through and is threadedly connected to the threaded hole On the inner side of 212, the lower end of the screw rod 308 is fixedly connected to the second fixing piece 309, and the lower end of the screw rod 308 is sleeved with a return spring 310, the upper end of the return spring 310 is in contact with the bottom of the front end of the horizontal fixing frame 208, and the lower end of the return spring 310 is in contact with the top surface of the second fixing piece 309, and the lower end of the second fixing piece 309 is fixedly connected to the middle of the top surface of the cross fixing plate 311, and the middle part of the bottom of the cross fixing plate 311 is fixedly connected to the middle of the bottom, and the bottom of the four branches of the cross fixing plate 311 is rotatably connected to the peripheral extrusion blocks 314 through the second rotating connecting piece 313, so as to push and flatten most of the raw materials accumulated on the top surface of the guide plate 111.

[0055] In this embodiment:

[0056] When the second drive motor 210 in the transmission assembly 201 is working, it drives the pulley 207 to rotate continuously, thereby driving the transmission short shaft 303 in the extrusion assembly 301 to rotate through the transmission belt 211, thereby driving the connecting rod 304 to rotate, thereby driving the connecting cross bar 305 to move, and driving the upper end of the upright connecting rod 306 to rotate with the connection between the first rotating connecting member 307 and the lower connecting connecting piece 315 as the rotation origin through the connecting cross bar 305, and in the process of the rotation of the upright connecting rod 306, the first rotating connecting member 307 and the lower connecting connecting piece 315 are connected. The connection 315 pulls the screw rod 308 to vertically displace, and the displaced screw rod 308 rotates in conjunction with the threaded hole 212, thereby driving the second fixing member 309 and the cross fixing plate 311 to rotate while vertically displacing, thereby driving the middle extrusion block 312, the second rotating connection member 313 and the peripheral extrusion block 314 to rotate while vertically displacing, and the extrusion assembly 301 pushes and flattens the raw materials accumulated on the top surface of the guide plate 111 through the displaced middle extrusion block 312 and the peripheral extrusion block 314, thereby avoiding raw material accumulation and accelerating the efficiency of raw material crushing and grinding.

[0057] The utility model provides an automatic crushing and grinding machine for raw materials for preparing water-based coatings through improvement. The friction disc 202 is driven to rotate by the transmission component 201, thereby continuously pushing the raw materials located on the inner side of the upper end of the feed funnel 106 and the upright fixed frame 105 to flow into the grinding component 103, so as to realize the automatic supply of a large amount of raw materials, avoid a large amount of raw materials from being accumulated inside the grinding component 103 at one time and causing blockage, and the lower half of the extrusion component 301 of the synchronous belt of the transmission component 201 is used for vertical reciprocating extrusion, and the cross fixing plate 311 and a plurality of extrusion blocks are driven to rotate through the threaded hole 212 and the screw rod 308, so as to further push and flatten the raw materials accumulated on the top surface of the guide plate 111, thereby avoiding the accumulation of raw materials and accelerating the crushing and grinding efficiency of the raw materials.

[0058] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic raw material crushing and grinding machine for preparing water-based paint, comprising: A fixed base (101), the top surface of the fixed base (101) being fixedly connected to a discharge tray (102), and the top surface of the discharge tray (102) being provided with a grinding assembly (103); The back of the grinding assembly (103) is fixedly connected to the front side of the fixed connection member (104), the fixed connection member (104) is fixedly connected to the front side of the upper end of the upright fixing frame (105), the upper end of the upright fixing frame (105) is fixedly connected to a feed funnel (106), and the lower end of the upright fixing frame (105) is fixedly connected to the rear part of the top surface of the fixed base (101); it is characterized in that it also includes: A transmission assembly (201), wherein the transmission assembly (201) is fixedly connected to the top surface of the upright fixing frame (105); An extrusion assembly (301), wherein the extrusion assembly (301) is arranged at the front end of the transmission assembly (201); A flat channel is provided inside the upper end of the upright fixing frame (105), and the flat channel at the upper end of the upright fixing frame (105) is communicated with the feed hopper (106) and the discharge port (107), the internal slideway of the discharge port (107) is inclined downward, and the discharge port (107) is arranged on the inner side of the upper part of the grinding assembly (103).

2. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 1, characterized in that: The transmission assembly (201) comprises: A friction disc (202), the friction disc (202) being rotatably connected to the right portion of the bottom of the inner side of the flat channel at the upper end of the upright fixing frame (105), and a certain distance being left between the left end of the friction disc (202) and the left side surface of the inner side of the flat channel at the upper end of the upright fixing frame (105); The top surface of the friction disc (202) is fixedly connected to the lower end of the transmission shaft (203), and the lower end of the transmission shaft (203) penetrates and is rotatably connected to the top surface of the upright fixing frame (105).

3. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 2, characterized in that: The upper end of the transmission shaft (203) is fixedly connected to a worm wheel (204), the front end of the worm wheel (204) is meshed with a worm (205), the left and right ends of the worm (205) penetrate and are rotatably connected to the inner side of the upper ends of two first fixing members (206), the left and right ends of the worm (205) are fixedly connected to pulleys (207), and the two first fixing members (206) are fixedly connected to the left and right parts of the top surface of the transverse fixing frame (208).

4. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 3, characterized in that: The right side of the transverse fixing frame (208) is fixedly connected to a transverse fixing plate (209), the top surface of the transverse fixing plate (209) is fixedly connected to a second drive motor (210), the output shaft of the second drive motor (210) is fixedly connected to the middle of the right side of a pulley (207) located at the right end of the worm (205), the two pulleys (207) are sleeved on the lower ends of two transmission belts (211), and a threaded hole (212) is provided on the top surface of the middle of the front end of the transverse fixing frame (208).

5. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 4, characterized in that: The extrusion assembly (301) comprises: An upright support column (302), the lower end of which is fixedly connected to the left and right parts of the top surface of the front end of the transverse fixing frame (208); The inner sides of the upper ends of the two upright support columns (302) are rotatably connected with a transmission short shaft (303), the inner sides of the two transmission short shafts (303) are fixedly connected to the outer sides of the upper ends of the connecting rods (304), and the lower ends of the two connecting rods (304) are fixedly connected to the left and right ends of the connecting cross bar (305).

6. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 5, characterized in that: The middle part of the connecting cross bar (305) passes through and is rotatably connected to the upper end of the upright connecting rod (306); the lower end of the upright connecting rod (306) is fixedly connected to the top surface of the first rotating connecting member (307); the inner side of the lower end of the first rotating connecting member (307) is rotatably connected to the left and right side surfaces of the upper end of the lower rotating connecting piece (315); the bottom of the lower end of the lower rotating connecting piece (315) is rotatably connected to the top surface of the upper end of the screw rod (308); the upper end of the screw rod (308) passes through and is threadedly connected to the inner side of the threaded hole (212); the lower end of the screw rod (308) is fixedly connected to the second fixing member (309).

7. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 6, characterized in that: A return spring (310) is sleeved on the lower end of the screw rod (308), the upper end of the return spring (310) is in contact with the bottom of the front end of the transverse fixing frame (208), the lower end of the return spring (310) is in contact with the top surface of the second fixing member (309), the lower end of the second fixing member (309) is fixedly connected to the middle of the top surface of the cross fixing plate (311), the middle of the bottom of the cross fixing plate (311) is fixedly connected to an intermediate extrusion block (312), and the bottoms of the four branches of the cross fixing plate (311) are rotatably connected to peripheral extrusion blocks (314) through second rotating connecting members (313).

8. The automatic raw material crushing and grinding machine for preparing water-based paint according to claim 7, characterized in that: The grinding assembly (103) comprises: An outer grinding disc (108), the back of the outer grinding disc (108) being fixedly connected to the front end of the fixed connection member (104); A first drive motor (109), the first drive motor (109) being fixedly connected to the middle of the bottom of the fixed base (101); The output shaft of the first drive motor (109) passes through and is rotatably connected to the middle of the bottom of the fixed base (101) and the middle of the bottom of the discharge plate (102), and the output shaft of the first drive motor (109) is fixedly connected to the middle of the bottom of the inner grinding disc (110), the inner grinding disc (110) is located on the inner side of the lower end of the outer grinding disc (108), and the bottom of the outer grinding disc (108) is rotatably connected to the middle of the top surface of the discharge plate (102), a certain distance is left between the inner side of the lower end of the outer grinding disc (108) and the outer side of the inner grinding disc (110), and the inner side of the lower end of the outer grinding disc (108) and the outer side of the inner grinding disc (110) are rough, and the top surface of the inner grinding disc (110) is fixedly connected with a guide disc (111), and the lower half of the extrusion assembly (301) is located on the inner side of the upper end of the outer grinding disc (108).

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