Coating grinding machine

Abstract

The utility model discloses a coating grinding machine which comprises a machine frame, and a grinding device is arranged on the machine frame. The grinding device comprises a hopper, a transverse plate is arranged on the hopper, a sliding groove is formed in the middle of the transverse plate, a sliding block is slidably connected into the sliding groove, two feeding holes are formed in the sliding groove, the top of the sliding block integrally communicates with a feeding frame, through holes corresponding to the feeding holes are formed in the bottom of the sliding block, and the sliding block slides back and forth so that the through holes and the feeding holes can be overlapped and separated in a reciprocating mode. The coating grinding machine has the beneficial effects that the feeding speed can be uniformly controlled, and the quality stability of products is improved.

Description

Technical Field

[0001] The utility model relates to a paint grinding machine. Background Art

[0002] Colloid mill is an ultrafine grinding equipment widely used in the coating industry, mainly used to grind materials into colloidal state or ultrafine particles. Traditional colloid mills are usually composed of feeding system, grinding system and driving system. The grinding system adopts the stator and rotor to achieve ultrafine grinding of materials through the shear force and impact force generated by high-speed rotation.

[0003] At present, the colloid mills on the market mainly rely on gravity feeding or simple mechanical feeding devices for feeding. Generally, the material is poured into the hopper and transported to the grinding area through a funnel or feeding pipe. Although this feeding method has a simple structure, it has obvious shortcomings in practical applications. Due to the differences in physical properties such as fluidity, viscosity and density of the material itself, as well as the influence of external factors such as ambient temperature and humidity, the feeding process is often not uniform and stable.

[0004] Especially when processing materials with high viscosity or poor fluidity, the hopper is prone to blockage or material interruption. Sometimes the material will form an "arch bridge" in the hopper, causing feeding interruption; sometimes the material will suddenly loosen and cause a large amount of material to be discharged instantly. This unstable feeding speed directly affects the grinding effect: when the feeding is too little, the grinding chamber is in a semi-empty state, which not only reduces the production efficiency of the equipment, but also aggravates the wear of the grinding parts; when the feeding is too much, it may cause the grinding chamber to be blocked, affecting the product quality, and even causing the equipment to stop in serious cases.

[0005] Unstable feed rate will also trigger a series of chain reactions. The shear heat in the grinding process cannot be effectively controlled, causing large fluctuations in material temperature, which is particularly unfavorable for the processing of temperature-sensitive materials. At the same time, uneven feed will also lead to uneven particle size distribution of the ground product, affecting the quality stability of the final product. Utility Model Content

[0006] The utility model aims to provide a coating grinding machine which can control the feeding speed more evenly and improve the quality stability of the product.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] A paint grinding machine, comprising a frame, on which a grinding device is provided; the grinding device includes a hopper, on which a cross plate is provided, a chute is arranged in the middle of the cross plate, a slider is slidably connected in the chute, two feeding holes are arranged on the chute, a feeding frame is integrally communicated with the top of the slider, and a through hole corresponding to the feeding hole is arranged at the bottom of the slider. The slider slides back and forth to make the through hole and the feeding hole reciprocally coincide and separate.

[0009] The present utility model is further arranged as follows: a sliding groove is arranged on one side of the cross plate, a connecting plate is fixedly connected to one side of the slider, one end of the connecting plate passing through the sliding groove is fixedly connected to a bracket, the middle of the bracket is hollow, and a cam is arranged in the middle of the bracket. The cam is fixedly connected to a rotating shaft, and the rotating shaft is connected to the hopper through a bearing.

[0010] The present utility model is further arranged as follows: one end of the rotating shaft is connected to a first transmission wheel, a second transmission wheel is arranged on one side of the frame, and a transmission belt is connected between the first transmission wheel and the second transmission wheel.

[0011] The present utility model is further arranged as follows: a driving shaft is fixedly connected to the middle of the second transmission wheel, the driving shaft is connected to the frame through a bearing, and one end of the driving shaft is connected to a bevel gear set.

[0012] The present utility model is further arranged as follows: the bevel gear set is connected to a first pulley, the grinding device further includes a grinding motor, the grinding motor is connected to an output shaft, a second pulley is fixedly sleeved on the output shaft, and a connecting belt is connected between the first pulley and the second pulley.

[0013] To sum up, the present utility model has the following beneficial effects:

[0014] The paint grinding machine provided by the present utility model sets a cross plate on the hopper, arranges a chute in the middle of the cross plate, slidably connects a slider in the chute, sets feeding holes on the chute, and sets through holes corresponding to the feeding holes at the bottom of the slider. The slider is driven by a motor to drive a cam mechanism to reciprocate in the chute, so as to realize the periodic coincidence and separation of the feeding hole and the through hole. This mechanically controlled feeding method avoids the problems of easy formation of "arch bridges" and blockages in traditional gravity feeding, and makes the feeding process more uniform and stable. At the same time, the stable feeding speed effectively controls the shear heat in the grinding process, reduces the influence of temperature fluctuations on the product, and improves the particle size distribution uniformity of the ground product. This structure also avoids the phenomena of equipment no-load and overload, reduces the downtime caused by hopper blockage, reduces the wear degree of grinding components, and prolongs the service life of the equipment. Generally speaking, the present utility model not only improves the quality stability and production efficiency of paint grinding, but also reduces the equipment maintenance cost, and has good practical value. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the embodiment;

[0016] Figure 2 Explosion schematic diagram of the connection relationship between the horizontal plate and the feeding frame;

[0017] Figure 3 is Figure 2 the upward view structure schematic diagram;

[0018] Figure 4 Structure schematic diagram after deleting part of the frame in the embodiment;

[0019] Figure 5 is Figure 4 the side view.

[0020] Reference numerals: 1, frame; 2, grinding device; 3, hopper; 4, horizontal plate; 5, chute; 6, slider; 7, feeding hole; 8, feeding frame; 9, through hole; 10, sliding groove; 11, connecting plate; 12, bracket; 13, cam; 14, rotating shaft; 15, first transmission wheel; 16, second transmission wheel; 17, transmission belt; 18, driving shaft; 19, bevel gear set; 20, first pulley; 21, grinding motor; 22, output shaft; 23, second pulley; 24, connecting belt. Specific embodiments

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0023] In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] As Figure 1 shown, a paint grinder includes a frame 1. A grinding device 2 is provided on the frame 1. The grinding device 2 performs sufficient fine grinding on the paint through the relative movement between the stator and the rotor, which is the prior art and will not be elaborated here.

[0026] The core technical solution of this application is as follows:

[0027] As Figure 1 , Figure 2 , Figure 3 shown, in order to solve the problem of uniform feeding. The grinding device 2 described in this application includes a hopper 3. The hopper 3 is used for the feeding of the paint. A cross plate 4 is provided on the hopper 3. A chute 5 is provided in the middle of the cross plate 4. A slider 6 is slidably connected in the chute 5. Among them, two feeding holes 7 are provided on the chute 5. The top of the slider 6 is integrally communicated with a feeding frame 8. A through hole 9 corresponding to the feeding hole 7 is provided at the bottom of the slider 6. When the through hole 9 coincides with the feeding hole 7, the paint moves out from the feeding frame 8 and enters the hopper 3, and finally enters the grinding device 2 for fine grinding.

[0028] As Figure 4 , Figure 5 shown, correspondingly, a sliding groove 10 is provided on one side of the cross plate 4. A connecting plate 11 is fixedly connected to one side of the slider 6. One end of the connecting plate 11 passing through the sliding groove 10 is fixedly connected to a bracket 12. The middle of the bracket 12 is hollow, and a cam 13 is provided in the middle of the bracket 12. The cam 13 is fixedly connected to a rotating shaft 14. The rotating shaft 14 is connected to the hopper 3 by a bearing.

[0029] The rotating shaft 14 can drive the cam 13 to rotate. When the cam 13 rotates, it can reciprocally abut against both sides inside the bracket 12, thereby driving the bracket 12 to reciprocate horizontally.

[0030] One end of the rotating shaft 14 is connected with a first transmission wheel 15, and a second transmission wheel 16 is arranged on one side of the frame 1. A transmission belt 17 is connected between the first rotating wheel and the second transmission wheel 16. A driving shaft 18 is fixedly connected to the middle of the second transmission wheel 16. The driving shaft 18 is connected to the frame 1 by bearings. One end of the driving shaft 18 is connected with a bevel gear set 19. The bevel gear set 19 is connected with a first pulley 20. Among them, the grinding device 2 further includes a grinding motor 21. The grinding motor 21 is connected with an output shaft 22. A second pulley 23 is fixedly sleeved on the output shaft 22. A connecting belt 24 is connected between the first pulley 20 and the second pulley 23. When the grinding motor 21 works, it can drive the second pulley 23 to rotate, and then drive the first pulley 20 to rotate through the belt. The first pulley 20 drives the driving shaft 18 to rotate through the bevel gear set 19, and then drives the second transmission wheel 16 to rotate. The second transmission wheel 16 drives the first transmission wheel 15 to rotate through the transmission belt 17, and then drives the rotating shaft 14 to rotate. When the rotating shaft 14 rotates, it can drive the cam 13 to rotate, and then drive the bracket 12 to move back and forth reciprocally.

[0031] As described above, when the bracket 12 moves reciprocally, it can make the slider 6 move reciprocally in the chute 5, so that the feeding hole 7 and the through hole 9 overlap and separate reciprocally, and the amount of paint removed from the feeding frame 8 each time remains relatively consistent, thereby achieving the purpose of controlling the paint feeding amount.

[0032] In summary, the paint grinding machine described in this application can control the feeding amount more precisely, thereby preventing too much paint from entering the hopper 3 and causing the hopper 3 to be blocked, improving the grinding effect of the product and the stability of the product quality.

[0033] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A paint grinder, characterized in that, It includes a frame (1), and a grinding device (2) is arranged on the frame (1); the grinding device (2) includes a hopper (3), a cross plate (4) is arranged on the hopper (3), a chute (5) is arranged in the middle of the cross plate (4), a slider (6) is slidably connected in the chute (5), two feeding holes (7) are arranged on the chute (5), a feeding frame (8) is integrally communicated with the top of the slider (6), a through hole (9) corresponding to the feeding hole (7) is arranged at the bottom of the slider (6), and the slider (6) slides back and forth to make the through hole (9) and the feeding hole (7) overlap and separate reciprocally.

2. The paint grinder according to claim 1, characterized in that, A sliding groove (10) is arranged on one side of the cross plate (4), a connecting plate (11) is fixedly connected to one side of the slider (6), one end of the connecting plate (11) passing through the sliding groove (10) is fixedly connected to a bracket (12), the middle of the bracket (12) is hollow, and a cam (13) is arranged in the middle of the bracket (12), the cam (13) is fixedly connected to a rotating shaft (14), and the rotating shaft (14) is connected to the hopper (3) by a bearing.

3. The paint grinder according to claim 2, characterized in that, One end of the rotating shaft (14) is connected to a first transmission wheel (15), a second transmission wheel (16) is arranged on one side of the frame (1), and a transmission belt (17) is connected between the first transmission wheel (15) and the second transmission wheel (16).

4. The paint grinder according to claim 3, characterized in that, A driving shaft (18) is fixedly connected to the middle of the second transmission wheel (16), the driving shaft (18) is connected to the frame (1) by a bearing, and one end of the driving shaft (18) is connected to a bevel gear set (19).

5. The paint grinder according to claim 4, characterized in that, The bevel gear set (19) is connected to a first pulley (20), the grinding device (2) further includes a grinding motor (21), the grinding motor (21) is connected to an output shaft (22), a second pulley (23) is fixedly sleeved on the output shaft (22), and a connecting belt (24) is connected between the first pulley (20) and the second pulley (23).

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