Coating production sand mill

Abstract

The utility model discloses a coating production sand mill which comprises a shell with a feeding pipe and a discharging pipe and a screening disc arranged in the shell, and the shell comprises a discharging half shell, a feeding half shell and an adjusting assembly; wherein a discharging cavity is formed in the discharging half shell, a first connecting opening communicated with the discharging cavity is formed in one end of the discharging half shell, the discharging pipe is connected to the discharging half shell, and the screening disc is fixedly matched with the first connecting opening; a grinding cavity is formed in the feeding half shell, a second connecting opening used for being matched with the first connecting opening in an inserted mode is formed in one end of the feeding half shell, and the feeding pipe is connected to the feeding half shell. The adjusting assembly is connected between the discharging half shell and the feeding half shell and used for adjusting the discharging half shell to move so as to control the first connecting port and the second connecting port to be matched in an inserted mode or separated from each other. Compared with the prior art, the grinding medium in the grinding cavity can be conveniently discharged to be cleaned or replaced, and the quality of coatings in subsequent production can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanding equipment, in particular to a sand mill for coating production. Background Art

[0002] A sand mill utilizes the coating and grinding media (such as glass beads, zirconium beads, etc.) in the cylinder to be stirred by a high-speed rotating dispersion disc, so that the coating particles and the grinding media generate stronger collision, friction and shearing effects with each other, achieving the purpose of accelerating the grinding of fine particles and the dispersion of aggregates. Existing sand mills include basket sand mills, horizontal sand mills and vertical sand mills. When the existing horizontal sand mill is operating, the dispersion disc inside the horizontal sand mill always rotates in one direction, and the coating and grinding media in the cylinder follow the dispersion disc to rotate, and the coating and grinding media will gradually synchronize with the rotation speed of the dispersion disc. At this time, the disturbance of the dispersion disc to the coating and grinding media in the cylinder is weakened, and the dispersion and grinding effects of the dispersion disc on the coating are also weakened.

[0003] To solve the above problems, CN220514338U discloses a horizontal sand mill for coating production, including a housing, a grinding assembly arranged in the housing, and a motor connected to the grinding assembly. The grinding assembly includes a driving rod, a frame arranged around the driving rod, and a planetary gear set connecting the driving rod and the frame. A plurality of dispersion discs are arranged on the driving rod at intervals along its axial direction. The plurality of dispersion discs are in a spiral curved surface shape, and the curved surfaces of the plurality of dispersion discs are all located on the same spiral surface around the driving rod. The planetary gear set is arranged on the inner end surface of the housing. The planetary gear set includes a sun gear connected to the driving rod, a planetary gear meshed with the sun gear, and a ring gear meshed with the planetary gear. The ring gear is connected to the frame, and a plurality of stirring columns are also arranged on the frame.

[0004] Although the above horizontal sand mill can efficiently grind the coating, the screening disc for putting the grinding media into the housing can only allow the coating particles to pass through, while the grinding media cannot pass through. It is not easy to discharge the grinding media from the housing for cleaning or replacement. After multiple uses, the coating layer coated on the surface of the grinding media will affect the quality of the coating and reduce the grinding effect of the coating. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a sand mill for coating production to solve the problem that in the prior art, it is not easy to discharge the grinding media from the housing for cleaning or replacement.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: A sand mill for coating production, including a housing having a feed pipe and a discharge pipe and a screening disc arranged in the housing. The housing includes:

[0007] The discharging half shell has a discharging cavity inside, and a first connection port communicating with the discharging cavity is formed at one end thereof. A discharging pipe is connected to the discharging half shell, and a screening plate is fixedly fitted at the first connection port.

[0008] The feeding half shell has a grinding cavity inside, and a second connection port for plugging and matching with the first connection port is formed at one end thereof. A feeding pipe is connected to the feeding half shell.

[0009] The adjusting assembly is connected between the discharging half shell and the feeding half shell, and is used to adjust the movement of the discharging half shell to control the plugging and matching or disconnection of the first connection port and the second connection port.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] When the sand mill for coating production is in use, the first connection port and the second connection port are plugged and matched, the discharging half shell and the feeding half shell are connected together, coating particles and grinding media are added into the grinding cavity from the feeding pipe, the coating particles are ground in the grinding cavity and then filtered through the screening plate, the coating passes through the screening plate and enters the discharging cavity, and is discharged from the discharging pipe; after the grinding process is completed, the adjusting assembly is used to move the discharging half shell away from the feeding half shell, the second connection port is opened, and then the grinding media in the grinding cavity can be discharged from the second connection port for cleaning or replacement, which is convenient and fast and can improve the quality of the coating in subsequent production. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0013] Figure 2 is Figure 1 a sectional view of;

[0014] Figure 3 is Figure 2 a partial enlarged view of part A in;

[0015] The reference numerals in the drawings of the specification include: feeding pipe 1, discharging pipe 2, screening plate 3, discharging half shell 4, feeding half shell 5, adjusting assembly 6, guide rod 61, adjusting cylinder 62, adjusting rod 63, support frame 7, driving assembly 8, driver 81, first gear 82, second gear 83, protective cover 84, first adjustable transmission structure 9, spline sleeve 91, limiting part 92, locking part 93, second adjustable transmission structure 10, sealing part 11. Detailed Description of the Embodiment

[0016] The following further details the utility model through specific embodiments:

[0017] As Figure 1and Figure 2 As shown, an embodiment of the utility model proposes a paint production sand grinder, including a shell with a feed pipe 1 and a discharge pipe 2 and a screening disc 3 arranged in the shell, the shell includes a discharge half shell 4, a feed half shell 5 and an adjustment component 6; wherein, the discharge half shell 4 has a discharge cavity and a first connection port connected to the discharge cavity is formed at one end thereof, the discharge pipe 2 is connected to the discharge half shell 4, and the screening disc 3 is fixedly adapted at the first connection port; the feed half shell 5 has a grinding cavity and a second connection port for plugging and matching with the first connection port is formed at one end thereof, and the feed pipe 1 is connected to the feed half shell 5; the adjustment component 6 is connected between the discharge half shell 4 and the feed half shell 5, and is used to adjust the movement of the discharge half shell 4 to control the plug-in matching or disconnection of the first connection port and the second connection port.

[0018] When the present paint production sand grinder is in use, the component 6 is adjusted to move the discharge half shell 4 toward the feed half shell 5 until the first connection port is plugged into the second connection port, the discharge half shell 4 is connected to the feed half shell 5, and the paint particles and grinding media are added to the grinding chamber from the feed pipe 1. After the paint particles are ground in the grinding chamber, they are filtered through the sieve plate 3, and the paint passes through the sieve plate 3 into the discharge chamber and is discharged from the discharge pipe 2. After the grinding process is completed, the component 6 is adjusted to move the discharge half shell 4 away from the feed half shell 5, and the second connection port is opened, and the grinding media in the grinding chamber can be discharged from the second connection port for cleaning or replacement, which is convenient and quick, and can improve the quality of the paint in subsequent production.

[0019] In order to better understand this solution, the solution will be further explained below.

[0020] like Figure 1 and Figure 2 As shown, according to another embodiment of the utility model, the paint production sand mill further includes a support frame 7 and a grinding assembly; wherein the support frame 7 is used to support and fix the feed half shell 5, the grinding assembly is arranged in the feed half shell 5 and is connected or disconnected by the drive assembly 8 fixed on the support frame 7 through the first adjustable transmission structure 9, and the adjustment assembly 6 is connected or disconnected from the drive assembly 8 through the second adjustable transmission structure 10.

[0021] Here:

[0022] The support frame 7 serves as the supporting skeleton of the paint production sand mill, and the driving component 8 serves as the driving unit. When the driving component 8 is connected to the grinding component through the first adjustable transmission structure 9 and is disconnected from the adjusting component 6 through the second adjustable transmission structure 10, it drives the grinding component to grind the paint particles in the grinding chamber; when the driving component 8 is disconnected from the grinding component through the first adjustable transmission structure 9 and is connected to the adjusting component 6 through the second adjustable transmission structure 10, it drives the adjusting component 6 to adjust the movement of the discharge half shell 4 to control the first connection port and the second connection port to be plugged in or disconnected.

[0023] In this embodiment, the grinding assembly can refer to the grinding assembly in CN220514338U (not fully shown in the drawings), and will not be described in detail here.

[0024] like Figure 1 , Figure 2 as well as Figure 3 As shown, according to another embodiment of the utility model, a paint production sand grinder is provided, wherein the first adjustable transmission structure 9 and the second adjustable transmission structure 10 have the same structure and both include a spline sleeve 91, one end of the spline sleeve 91 is spline-connected to the drive assembly 8 and the other end thereof is spline-connected to the grinding assembly or the adjustment assembly 6.

[0025] When in use, the spline sleeve 91 is moved to control the connection state with the grinding assembly or the adjustment assembly 6, thereby realizing transmission connection or disconnection to meet the use requirements.

[0026] Based on the above solution: one end of the spline sleeve 91 is fixedly connected to the limiting portion 92 on the driving assembly 8 , and a locking portion 93 is connected to the side wall of the spline sleeve 91 at one end away from the limiting portion 92 .

[0027] In this embodiment, the limiting portion 92 is a limiting ring connected to the driving assembly 8, and the locking portion 93 is a locking bolt threadedly connected to the spline sleeve 91; the staff holds the locking bolt to move the spline sleeve 91, and when one end of the spline sleeve 91 is against the limiting ring, the two ends of the spline sleeve 91 have a suitable length to connect with the driving assembly 8 and the grinding assembly or the adjusting assembly 6 accordingly, and at the same time, the locking bolt is rotated to be against the grinding assembly to make the spline sleeve 91 stably connected between the driving assembly 8 and the grinding assembly or the adjusting assembly 6.

[0028] A spline section is formed at one end of the driving rod of the grinding assembly to cooperate with the spline sleeve 91 for spline connection.

[0029] like Figure 1 and Figure 2As shown, according to another embodiment of the utility model, a paint production sand grinder, wherein the adjustment assembly 6 includes a guide rod 61 and an adjustment part, wherein the guide rod 61 has at least one and when the number is more than one, it is circumferentially arranged on the outside of the discharge half shell 4, one end of each guide rod 61 is fixedly connected to the outer wall of the discharge half shell 4 and the other end thereof extends along the axial direction of the feed half shell 5 and is slidably connected to the support frame 7; the adjustment part is connected between the discharge half shell 4 and the second adjustable transmission structure 10 and is also connected to the support frame 7, and the adjustment part can be driven by the second adjustable transmission structure 10 to be telescopically adjusted along the moving direction of the discharge half shell 4.

[0030] In this embodiment, the number of guide rods 61 is shown as one; when the drive assembly 8 is disconnected from the grinding assembly through the first adjustable transmission structure 9 and is connected to the adjustment part through the second adjustable transmission structure 10, the drive assembly 8 drives the adjustment part to operate to telescopically adjust along the moving direction of the discharge half shell 4, and the guide rod 61 slides relative to the support frame 7 for guidance, thereby controlling the discharge half shell 4 to move toward or away from the feed half shell 5, and the first connection port is plugged into or disconnected from the second connection port to facilitate assembly between the discharge half shell 4 and the feed half shell 5 and then grinding work or disconnection between the discharge half shell 4 and the feed half shell 5, and the grinding medium is discharged at the second connection port for cleaning or replacement.

[0031] The adjusting part is spline-connected to one end of the spline sleeve 91 in the second adjustable transmission structure 10 for transmission, and the adjusting part is disconnected from the spline sleeve 91 in the second adjustable transmission structure 10 to disconnect the transmission.

[0032] Based on the above scheme:

[0033] The adjustment part includes an adjustment cylinder 62 and an adjustment rod 63, one end of the adjustment cylinder 62 is fixedly connected to the discharge half shell 4 and the other end thereof extends along the axial direction of the feed half shell 5 and is slidably connected to the support frame 7; one end of the adjustment rod 63 is threadedly connected to the adjustment cylinder 62 and the other end thereof is connected to the second adjustable transmission structure 10, and the adjustment rod 63 is also slidably connected to the support frame 7.

[0034] Specifically, a spline section for spline connection with the spline sleeve 91 in the second adjustable transmission structure 10 is also formed at one end of the adjusting rod 63. After the spline sleeve 91 in the second adjustable transmission structure 10 is moved to transmit the connection between the adjusting rod 63 and the driving assembly 8, the driving assembly 8 is started to drive the adjusting rod 63 to rotate through the spline sleeve 91 in the second adjustable transmission structure 10. The guide rod 61 slides relative to the support frame 7 for guidance, and the adjusting cylinder 62 moves along the axial direction of the adjusting rod 63 to drive the discharge half shell 4 to move toward or away from the feed half shell 5.

[0035] like Figure 1 andFigure 2 As shown, according to another embodiment of the present utility model, for the sand mill for coating production, the driving assembly 8 includes a driver 81, a first gear 82 and a second gear 83; wherein, the driver 81 is fixedly arranged on the support frame 7; the first gear 82 is connected to the driver 81 and is connected with a first spline shaft for being in transmission connection or disengaged from the first adjustable transmission structure 9; the second gear 83 meshes with the first gear 82 and is connected with a second spline shaft for being in transmission connection or disengaged from the second adjustable transmission structure 10.

[0036] In this embodiment:

[0037] The driver 81 can be a stepping motor, which drives the first gear 82 to rotate, and the first gear 82 drives the second gear 83 to rotate. When the spline sleeve 91 in the first adjustable transmission structure 9 is in transmission connection between the first spline shaft and the driving rod of the grinding assembly and the spline sleeve 91 in the second adjustable transmission structure 10 is not connected between the second spline shaft and the adjusting rod 63, the driver 81 is started to drive the grinding assembly to operate in the grinding cavity through the first gear 82, the first spline shaft and the spline sleeve 91 in the first adjustable transmission structure 9 for grinding work; when the spline sleeve 91 in the first adjustable transmission structure 9 is not connected between the first spline shaft and the driving rod of the grinding assembly and the spline sleeve 91 in the second adjustable transmission structure 10 is in transmission connection between the second spline shaft and the adjusting rod 63, the driver 81 is started to drive the adjusting rod 63 to rotate through the first gear 82, the second gear 83, the second spline shaft and the spline sleeve 91 in the second adjustable transmission structure 10, the guide rod 61 slides relative to the support frame 7 for guiding, and the adjusting cylinder 62 moves along the axial direction of the adjusting rod 63 to drive the discharge half shell 4 to move towards or away from the feed half shell 5.

[0038] Wherein, a protective cover 84 is cooperatively sleeved outside the first gear 82 and the second gear 83.

[0039] As Figure 2 shown, according to another embodiment of the present utility model, for the sand mill for coating production, a sealing portion 11 is formed along the circumferential direction at the first connection port, and a positioning connection groove adapted to the sealing portion 11 is formed at the second connection port. The positioning connection groove and the sealing portion 11 cooperate to improve the sealing performance when the first connection port and the second connection port are in plug-in fit.

[0040] When this solution is in use:

[0041] Ensure that the discharging half shell 4 and the feeding half shell 5 are connected, and the spline sleeve 91 in the first adjustable transmission structure 9 is in driving connection between the first spline shaft and the driving rod of the grinding assembly, and the spline sleeve 91 in the second adjustable transmission structure 10 is not connected between the second spline shaft and the adjusting rod 63; at this time, start the driver 81, and add coating particles and grinding medium from the feeding pipe 1 to carry out the grinding work, and the ground coating is discharged from the discharging pipe 2;

[0042] After the coating grinding is completed, turn off the driver 81, adjust the spline sleeve 91 in the first adjustable transmission structure 9 to disconnect between the first spline shaft and the driving rod of the grinding assembly, and the spline sleeve 91 in the second adjustable transmission structure 10 is in driving connection between the second spline shaft and the adjusting rod 63; at this time, start the driver 81, the discharging half shell 4 moves away from the feeding half shell 5 to a suitable position, the driver 81 stops running, the second connection port is opened, and the grinding medium is discharged from the second connection port for cleaning;

[0043] After the grinding medium is discharged, start the driver 81 to rotate in the reverse direction, the discharging half shell 4 moves towards the feeding half shell 5 until the sealing part 11 is completely fitted into the positioning connection groove, and the discharging half shell 4 and the feeding half shell 5 are assembled, and the driver 81 stops running; at this time, the spline sleeve 91 in the first adjustable transmission structure 9 can be adjusted to be in driving connection between the first spline shaft and the driving rod of the grinding assembly, and the spline sleeve 91 in the second adjustable transmission structure 10 is disconnected between the second spline shaft and the adjusting rod 63 for the next use.

[0044] After working multiple times, when it is found that the grinding efficiency of the grinding medium does not meet the usage requirements, the grinding medium can be replaced.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A coating production sand mill, comprising a housing having a feed pipe and a discharge pipe and a screening disc arranged in the housing, characterized in that: The housing comprises: A discharge half shell, wherein the discharge half shell has a discharge cavity and a first connection port communicating with the discharge cavity is formed at one end thereof, a discharge pipe is connected to the discharge half shell, and a screening disc is fixedly adapted at the first connection port; A feeding half shell, wherein the feeding half shell has a grinding cavity therein and a second connection port for plugging and matching with the first connection port is formed at one end thereof, and a feeding pipe is connected to the feeding half shell; The adjusting component is connected between the discharge half shell and the feed half shell, and is used to adjust the movement of the discharge half shell to control the plug-in fit or disconnection between the first connection port and the second connection port.

2. A coating production sand mill according to claim 1, characterized in that: Also includes: A support frame, the support frame is used to support and fix the feed half shell; The grinding assembly is arranged in the feed half shell and is connected or disconnected by the driving assembly fixed on the support frame through the first adjustable transmission structure, and the regulating assembly is connected or disconnected with the driving assembly through the second adjustable transmission structure.

3. A coating production sand mill according to claim 2, characterized in that: The first adjustable transmission structure and the second adjustable transmission structure have the same structure and both include: A spline sleeve, one end of which is spline-connected to the driving component and the other end of which is spline-connected to the grinding component or the adjusting component.

4. A coating production sand mill according to claim 3, characterized in that: One end of the spline sleeve is matched and fixedly connected to a limiting portion on the driving assembly, and a locking portion is connected to a side wall of an end of the spline sleeve away from the limiting portion.

5. A coating production sand mill according to claim 2, characterized in that: The adjustment component comprises: Guide rods, at least one of which and when there are more than one guide rods, are circumferentially arranged outside the discharge half shell, one end of each guide rod is fixedly connected to the outer wall of the discharge half shell and the other end of each guide rod extends along the axial direction of the feed half shell and is slidably connected to the support frame; The adjusting part is connected between the discharge half shell and the second adjustable transmission structure and is also connected to the support frame. The adjusting part can be driven by the second adjustable transmission structure to be telescopically adjusted along the moving direction of the discharge half shell.

6. A coating production sand mill according to claim 5, characterized in that: The adjustment unit comprises: An adjusting cylinder, one end of which is fixedly connected to the discharge half shell and the other end of which extends along the axial direction of the feed half shell and is slidably connected to the support frame; An adjusting rod, one end of which is threadedly connected to the adjusting cylinder and the other end of which is connected to the second adjustable transmission structure, and the adjusting rod is also slidably connected to the supporting frame.

7. A coating production sand mill according to claim 2, characterized in that: The drive assembly comprises: A driver, wherein the driver is fixedly arranged on the support frame; A first gear, the first gear is connected to the driver and is connected to a first spline shaft for connecting or disconnecting with the first adjustable transmission structure; A second gear is meshed with the first gear and is connected to a second spline shaft for connecting or disconnecting with the second adjustable transmission structure.

8. A coating production sand mill according to claim 1, characterized in that: A sealing portion is formed at the first connection port along its circumferential direction, and a positioning connection groove matched with the sealing portion is formed at the second connection port.

Images