Sand mill with waste collecting function

Abstract

The utility model discloses a sand mill with a waste collecting function, which is characterized by comprising a sand mill cylinder, a cooling chamber and a grinding chamber are respectively arranged in the sand mill cylinder, the cooling chamber is respectively provided with a water inlet and a water outlet, the grinding chamber is respectively provided with a feed port and a discharge port, and the feed port and the discharge port are communicated with each other. A pressure gauge is arranged on the feeding port, and a thermometer is arranged on the discharging port. According to the sand mill with the waste collecting function, the automatic opening and closing mechanism is arranged, when the sand mill works, the waste discharging pipe is in a normally-closed state, finished product particles formed through grinding are prevented from entering the waste discharging pipe, and therefore the output rate of finished products is increased, and further, when waste is cleaned, the waste is prevented from entering the waste discharging pipe. The liftable cleaning brush extends into the grinding chamber to clean a small amount of waste materials accumulated near the inlet of the waste discharge hopper, and the waste materials are discharged through the waste discharge pipe, so that the waste material cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand mills, and specifically relates to a sand mill with a waste collection function. Background Technique

[0002] When the existing sand mill grinds materials, there are some particles that are not ground thoroughly. The large-particle waste materials cannot be discharged from the filter screen at the discharge port and accumulate at the discharge port position. After a long time of use, the filter screen is likely to be blocked.

[0003] To solve the above problems, such as a sand mill with a waste collection function disclosed in the authorized patent CN211303267 U of China and a sand mill for waste recycling disclosed in CN218962825 U. The above-mentioned devices are both provided with a waste discharge hopper at the bottom of the sand mill to discharge waste. In particular, a sand mill for waste recycling disclosed in CN218962825 U is also provided with a rotating assembly to improve the smoothness of discharging materials.

[0004] However, both of the above-mentioned devices have a problem, that is, their waste discharge hoppers are in an open state all the time. In actual work, not only large-particle waste materials enter the waste discharge hopper, but also the finished particles that have been ground and formed. Obviously, these finished particles entering the waste discharge hopper are wasted after being discharged together with the waste materials. Secondly, for a small amount of waste materials accumulated near the entrance of the waste discharge hopper, since the above-mentioned devices lack an effective cleaning mechanism, it is very difficult to effectively clean up this part of the waste materials. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a sand mill with a waste collection function, which solves the problem of low efficiency of the waste discharge mechanism of the existing sand mill.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions: A sand mill with a waste collection function, characterized in that: it includes a sand mill cylinder body, in which a cooling chamber and a grinding chamber are respectively arranged. Among them, a water inlet and a water outlet are respectively arranged on the cooling chamber, and a feed inlet and a discharge outlet are respectively arranged on the grinding chamber. A pressure gauge is arranged on the feed inlet, and a thermometer is arranged on the discharge outlet.

[0009] A rotatable grinding rod is arranged in the grinding chamber, and the grinding rod is driven by an external first motor. A filter cover is also arranged in the grinding chamber, and the filter cover is communicated with the discharge outlet.

[0010] A waste discharge pipe is provided at the bottom of the cylinder body of the sand mill. The waste discharge pipe is communicated with the grinding chamber. A switchable valve plate is provided at the top inlet of the waste discharge pipe. A liftable micro cylinder is provided at the bottom of the waste discharge pipe. An end plate is installed at the free end of the micro cylinder. A servo motor is provided on the end plate. A rotatable rotating shaft is installed at the output end of the servo motor. The rotating shaft extends into the interior of the waste discharge pipe, and a cleaning brush is provided on the part of the rotating shaft located inside the waste discharge pipe. An articulated joint is provided on the side of the valve plate close to the waste discharge pipe. A shaft sleeve is provided at the bottom of the articulated joint. The top of the rotating shaft is movably installed in the shaft sleeve.

[0011] As a further preference, 4-6 groups of the cleaning brushes are provided, and the cleaning brush at the top abuts against the inner wall of the waste discharge pipe in a curled posture.

[0012] As a further preference, a first discharge port and a second discharge port are respectively provided at the bottom of the waste discharge pipe. The first discharge port and the second discharge port are separated by an inclined filter screen.

[0013] As a further preference, an inclined step is provided on the inner wall of the grinding chamber close to the waste discharge pipe.

[0014] (III) Beneficial effects

[0015] The utility model provides a sand mill with a built-in waste collection function, having the following beneficial effects:

[0016] For the sand mill with the built-in waste collection function, by setting an automatic opening and closing mechanism, when the sand mill is working, the waste discharge pipe is in a normally closed state, avoiding the finished product particles formed by grinding from entering the waste discharge pipe, thereby improving the output rate of the finished product. Further, when cleaning the waste, the liftable cleaning brush extends into the grinding chamber to clean a small amount of waste accumulated near the inlet of the waste discharge hopper, enabling it to be discharged through the waste discharge pipe, thereby improving the waste cleaning efficiency. Description of the drawings

[0017] Figure 1 It is a schematic structural diagram of the utility model;

[0018] Figure 2 It is an enlarged view of the structure at position A of the utility model;

[0019] Figure 3 It is a schematic diagram of the valve plate structure of the utility model in an open state.

[0020] In the figure: 1. Sand mill cylinder body; 2. Cooling chamber; 3. Grinding chamber; 4. Water inlet; 5. Water outlet; 6. Feed inlet; 7. Discharge outlet; 8. Pressure gauge; 9. Thermometer; 10. Grinding rod; 11. Filter cover; 12. First motor; 13. Waste discharge pipe; 14. Valve plate; 15. Micro cylinder; 16. End plate; 17. Servo motor; 18. Rotating shaft; 19. Cleaning brush; 20. Bush; 21. Movable joint; 22. First discharge opening; 23. Filter screen; 24. Second discharge opening; 25. Step. Detailed implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figure 1 shown, the present invention provides a technical solution: a sand mill with a waste collection function, including a sand mill cylinder body 1, in which a cooling chamber 2 and a grinding chamber 3 are respectively arranged. Among them, a water inlet 4 and a water outlet 5 are respectively arranged on the cooling chamber 2, and a feed inlet 6 and a discharge outlet 7 (connected to an external pumping pump, not shown in the figure) are respectively arranged on the grinding chamber 3. A pressure gauge 8 is arranged on the feed inlet 6, and a thermometer 9 is arranged on the discharge outlet 7.

[0023] A rotatable grinding rod 10 is arranged in the grinding chamber 3, and the grinding rod 10 is driven by an external first motor 12. A filter cover 11 is also arranged in the grinding chamber 3, and the filter cover 11 is communicated with the discharge outlet 7.

[0024] The raw material enters the grinding chamber 3 through the feed inlet 6. The first motor 12 is turned on to drive the grinding rod 10 to grind the raw material. During this process, the coolant is introduced through the water inlet 4 to cool the inside of the grinding chamber 3, and the heat-absorbed coolant is discharged through the water outlet 5. The ground finished product particles are filtered out through the filter cover 11 and discharged through the discharge outlet 7.

[0025] As Figures 2 - 3As shown, a waste pipe 13 is provided at the bottom of the sand mill barrel 1, and an inclined step 25 is provided on the inner wall of the grinding chamber 3 near the waste pipe 13. The step 25 is convenient for waste discharge. The waste pipe 13 is connected to the grinding chamber 3, and a valve plate 14 that can be opened and closed is provided at the top entrance of the waste pipe 13. A liftable micro cylinder 15 is provided at the bottom of the waste pipe 13, and an end plate 16 is installed at the free end of the micro cylinder 15. A servo motor 17 is provided on the end plate 16. A rotatable shaft 18 is installed at the output end of the servo motor 17. The shaft 18 extends to the inside of the waste pipe 13, and a cleaning brush 19 is provided on the shaft 18 located in the waste pipe 13.

[0026] like Figures 2 - 3 As shown, 4-6 groups of cleaning brushes 19 are provided, and the cleaning brushes 19 at the top are in curled posture against the inner wall of the waste pipe 13. When this part of the curled cleaning brushes 19 leaves the waste pipe 13, it will automatically stretch out, so it will cover the entire inlet channel (including the area near the channel). A movable joint 21 is provided on the side of the valve plate 14 close to the waste pipe 13, and a shaft sleeve 20 is provided at the bottom of the movable joint 21. The top of the rotating shaft 18 is movably installed in the shaft sleeve 20. During the flexible connection process of the movable joint 21, the shaft sleeve 20 can be displaced in a small range relative to the valve plate 14, but the shaft sleeve 20 is still constrained by the valve plate 14 in the horizontal direction, so the shaft sleeve 20 will not rotate with the rotating shaft 18.

[0027] It is particularly important to explain that the rotating shaft 18 may not be connected to the valve plate 14. We only need to set a clockwork spring at the rotation axis of the valve plate 14, and use the elastic force of the clockwork spring to abut the valve plate 14 against the entrance of the waste pipe 13. The rotating shaft 18 can push the valve plate 14 open. When the rotating shaft 18 leaves the valve plate 14, the valve plate 14 automatically resets to close the entrance under the deformation recovery of the clockwork spring.

[0028] like Figures 2 - 3 As shown, a first discharge port 22 and a second discharge port 24 are respectively provided at the bottom of the waste discharge pipe 13 , and the first discharge port 22 and the second discharge port 24 are separated by an inclined filter screen 23 .

[0029] Meanwhile, the contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field.

[0030] When in use, the waste discharge process is emphasized here. First, the micro cylinder 15 is turned on to drive the end plate 16 and the rotating shaft 18 to rise. During the rising process of the rotating shaft 18, the valve plate 14 is pushed open and the valve plate 14 is pushed to rotate, thereby opening the channel of the waste discharge pipe 13. At the same time, during the rising process of the rotating shaft 18, the cleaning brush 19 on the top of the rotating shaft 18 breaks free from the wall of the waste discharge pipe 13 and enters the grinding chamber 3, and covers the area near the entrance channel of the waste discharge pipe 13.

[0031] Turn on the servo motor 17 to drive the rotation of the rotating shaft 18, thereby driving the rotation of the cleaning brush 19. During the rotation of the cleaning brush 19 at the top, a small amount of waste materials accumulated near the entrance of the waste discharge hopper can be cleaned and made to fall into the waste discharge pipe 13. Then, under the cleaning action of the cleaning brush 19 inside the pipe, it is discharged through the discharge port.

[0032] Since the waste materials may contain abrasive beads, a filter screen 23 is provided. The abrasive beads are filtered out through the filter screen 23 and discharged through the first discharge port 22, while the waste materials are discharged through the second discharge port 24.

[0033] In summary, for the sand mill with a built-in waste collection function, by setting up an automatic opening and closing mechanism, when the sand mill is working, the waste discharge pipe is in a normally closed state to prevent the finished product particles formed by grinding from entering the waste discharge pipe, thereby improving the output rate of the finished product. Further, when cleaning the waste materials, the liftable cleaning brush extends into the grinding chamber to clean a small amount of waste materials accumulated near the entrance of the waste discharge hopper and make them discharged through the waste discharge pipe, thus improving the waste material cleaning efficiency.

[0034] It should be noted that the electrical components mentioned in this article are all electrically connected to an external main controller and 220V or 380V mains electricity. And the main controller can be a conventional known device such as a computer that plays a control role. Its control principle, internal structure, control switch mode, etc. are all conventional means of the existing technology and are directly cited here without further elaboration. In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand mill with a self - contained waste collection function, characterized in that: It includes a sand mill cylinder body (1), in which a cooling chamber (2) and a grinding chamber (3) are respectively arranged. Among them, a water inlet (4) and a water outlet (5) are respectively arranged on the cooling chamber (2), and a feed inlet (6) and a discharge outlet (7) are respectively arranged on the grinding chamber (3). A pressure gauge (8) is arranged on the feed inlet (6), and a thermometer (9) is arranged on the discharge outlet (7); A rotatable grinding rod (10) is arranged in the grinding chamber (3), and the grinding rod (10) is driven by an external first motor (12). A filter cover (11) is also arranged in the grinding chamber (3), and the filter cover (11) is communicated with the discharge outlet (7); A waste discharge pipe (13) is arranged at the bottom of the sand mill cylinder body (1), and the waste discharge pipe (13) is communicated with the grinding chamber (3). A valve plate (14) that can be opened and closed is arranged at the top inlet of the waste discharge pipe (13). A liftable micro cylinder (15) is arranged at the bottom of the waste discharge pipe (13). An end plate (16) is installed at the free end of the micro cylinder (15). A servo motor (17) is arranged on the end plate (16). A rotatable rotating shaft (18) is installed at the output end of the servo motor (17). The rotating shaft (18) extends into the interior of the waste discharge pipe (13), and a cleaning brush (19) is arranged on the part of the rotating shaft (18) located in the waste discharge pipe (13). A movable joint (21) is arranged on one side of the valve plate (14) close to the waste discharge pipe (13). A shaft sleeve (20) is arranged at the bottom of the movable joint (21). The top of the rotating shaft (18) is movably installed in the shaft sleeve (20).

2. The sand mill with a waste material collection function according to claim 1, wherein: There are 4 - 6 groups of the cleaning brushes (19), and the cleaning brush (19) at the top abuts against the inner wall of the waste discharge pipe (13) in a curled posture.

3. A sand mill with a self - contained waste collection function according to claim 1, characterized in that: A first discharge port (22) and a second discharge port (24) are respectively arranged at the bottom of the waste discharge pipe (13), and the first discharge port (22) and the second discharge port (24) are separated by an inclined filter screen (23).

4. A sand mill with a self - contained waste collection function according to claim 1, wherein: An inclined step (25) is arranged on the inner wall of the grinding chamber (3) close to the waste discharge pipe (13).

Images