Cement mortar mixer

Abstract

The utility model relates to a cement mortar stirrer which comprises a rack, a lifting plate is arranged on the rack, a lifting assembly is arranged on the rack, a stirring barrel is placed on the lifting plate, a stirring shaft is arranged on the rack, a cover plate is arranged on the rack, the stirring shaft is rotationally connected with the cover plate, a stirring frame is arranged on the stirring shaft, and the cover plate is arranged on the stirring frame. A scraping plate piece is slidably mounted on the side edge of the stirring frame, and a driving piece is arranged on the stirring shaft; the stirring barrel is placed on the lifting plate and moves to one side of the cover plate, the stirring shaft drives the stirring frame to rotate for stirring, after stirring is finished, the stirring barrel is cleaned after material cleaning, the driving piece drives the scraper piece to move during cleaning, the scraper piece moves to be attached to the side wall of the stirring barrel, and the stirring frame rotates to drive the scraper piece to scrape and clean the side wall of the stirring barrel. The stirring device has the effect that the stirring barrel can be cleaned conveniently and quickly.

Description

Technical Field

[0001] This application relates to the field of cement testing equipment, and particularly to a cement mortar mixer. Background Art

[0002] A cement mortar mixer is a device used to prepare cement mortar specimens. Its main function is to mix cement, standard sand, and water evenly in a certain proportion for subsequent cement performance testing.

[0003] A cement mortar mixer usually consists of a mixing pot, mixing blades, a transmission mechanism, and a motor, etc., and has the characteristics of simple structure, convenient operation, and high mixing efficiency. When using a cement mortar mixer, it is necessary to operate according to the specified mixing time and mixing speed to ensure the uniformity and consistency of the mixture.

[0004] In the related art, reference can be made to the utility model patent with the authorization announcement number CN207465530U, which discloses a cement mortar mixer, including a machine body. The machine body includes a base, on which a liftable fork-shaped support frame is provided. A support seat is connected to the fork-shaped support frame, and a hydraulic cylinder for driving the fork-shaped support frame to lift and drive the support seat to displace in the vertical direction is connected to the fork-shaped support frame. A mixing pot is provided on the support seat. During the test, the mixing pot is installed on the support seat, and the specimen is placed in the mixing pot. The hydraulic cylinder extends to drive the fork-shaped support frame to rise. At this time, the support seat automatically rises to the designated position with the fork-shaped support frame. At this time, the cement mortar mixer can start mixing. After the test is completed, the hydraulic cylinder contracts to drive the fork-shaped support frame to descend, and the support seat automatically descends to the designated position with the fork-shaped support frame. At this time, the mixing pot is taken out, and the specimen in the mixing pot is taken out to complete the test.

[0005] After mixing is completed, residual cement often adheres to the inner side wall of the mixing pot, and it needs to be cleaned manually in time. It can only be used continuously after the cleaning is completed, and the cleaning operation is inconvenient. Utility Model Content

[0006] In order to solve the problem that cement adheres to the inner side wall of the mixing pot and the manual cleaning operation is inconvenient, this application provides a cement mortar mixer.

[0007] The cement mortar mixer provided by this application adopts the following technical solutions:

[0008] A cement mortar mixer comprises a frame, a lifting plate is provided on the frame, a lifting component for driving the lifting plate to slide is provided on the frame, a mixing barrel is placed on the lifting plate, a mixing component is provided on the frame, the mixing component comprises a main shaft box and a mixing shaft, the main shaft box is provided on the frame, a rotating shaft is provided on the lower side of the main shaft box, the mixing shaft is provided at one side of the rotating shaft, a cover plate for closing the mixing barrel is provided on the frame, the mixing shaft is rotatably connected to the cover plate, a mixing frame is provided on the mixing shaft, a scraper member is slidably installed at the side of the mixing frame, the sliding direction of the scraper member is perpendicular to the axial direction of the mixing shaft, and a driving member for driving the scraper member to move is provided on the mixing shaft.

[0009] By adopting the above technical scheme, the mixing barrel is placed on the lifting plate, and the lifting assembly drives the lifting plate to move. When the opening of the mixing barrel is located on one side of the cover plate, the movement stops. At this time, the spindle box drives the rotating shaft to drive the mixing shaft to rotate, and then drives the mixing frame to rotate for mixing. After the mixing is completed, the mixing barrel is emptied. After the cleaning is completed, the mixing barrel needs to be cleaned. During cleaning, the driving part drives the scraper part to move, and the scraper part moves to fit the side wall of the mixing barrel. At this time, the rotation of the mixing frame drives the scraper part to scrape and clean the side wall of the mixing barrel. After the cleaning is completed, the driving part drives the scraper part to return to its position, which is convenient for the next mixing operation. The operation of cleaning the mixing barrel is convenient and quick.

[0010] Optionally, the scraper member includes a scraper bar and a sliding rod, the sliding rod is slidingly connected to the side wall of the stirring frame, the scraper bar is arranged at one end of the sliding rod, the scraper bar and the axis of the stirring shaft are arranged parallel to each other, and one end of the scraper bar is connected to the driving member.

[0011] By adopting the above technical solution, the driving member pushes the scraper bar to slide to one side of the scraper bar and fit the inner wall of the mixing barrel. When the mixing shaft rotates, the scraper bar is driven to clean the inner wall of the mixing barrel, and the cleaning effect is better.

[0012] Optionally, a first spring is provided at one end of the sliding rod away from the scraper bar, and one end of the first spring is connected to the stirring frame.

[0013] By adopting the above technical solution, when the scraper strip slides, the first spring stretches, and when the scraping is completed, the first spring pulls the scraper strip back to its position. During the stirring operation, the scraper strip rotates together with the stirring frame to stir, and the stirring effect is better.

[0014] Optionally, the driving member includes a rotating rod and a connecting rod. The rotating rod is rotatably connected to the stirring shaft and coaxially arranged. The connecting rod is arranged at one end of the rotating rod. One end of the scraping bar is rotatably installed with a connecting rod, and one end of the connecting rod is rotatably connected to the connecting rod. A locking member for locking the rotating rod is arranged on the stirring shaft.

[0015] By adopting the above technical solution, rotating the rotating rod drives the connecting rod to rotate, and then drives the connecting rod to rotate. The connecting rod pushes the scraping bar to move, adjusts the position of the scraping bar, and locks the rotating rod through the locking member, making the adjustment operation convenient.

[0016] Optionally, the locking member includes a collar and a plug rod. The collar is slidably installed outside the stirring shaft. A rotating block is arranged on the rotating rod. A rotating hole for the rotating block to rotate is opened on the stirring shaft. One end of the rotating block is located outside the rotating hole. The plug rod is arranged on one side surface of the collar, and a slot for the plug rod to be inserted is opened on the rotating block.

[0017] By adopting the above technical solution, pushing the rotating block drives the rotating rod to move. When the rotating rod rotates to the position where the scraping bar is pushed out, sliding the collar drives the plug rod to be inserted into the slot of the rotating block. At this time, the position of the rotating rod is fixed and the position of the scraping bar is fixed, which is convenient for cleaning operations.

[0018] Optionally, a tightening ring is arranged on the stirring shaft. A second spring is arranged on one side of the tightening ring, and one end of the second spring is connected to one side of the collar.

[0019] By adopting the above technical solution, the second spring pushes the collar and then pushes the plug rod on one side to be tightly pressed against the slot of the rotating block. The positions of the rotating block and the rotating rod are fixed, and the scraping bar is not easy to shake during stirring or cleaning.

[0020] Optionally, a sealing ring is arranged on the lower side surface of the cover plate, and an annular sealing groove is arranged on the inner ring of the opening of the stirring barrel.

[0021] By adopting the above technical solution, when the cover plate is located at the opening of the stirring barrel, the sealing ring is located at the annular sealing groove of the stirring barrel, sealing the stirring barrel and reducing the probability of dust escaping during stirring.

[0022] Optionally, the lifting assembly includes a lead screw and a lifting motor. The lead screw is rotatably installed on the frame. The lifting plate is threadedly connected to the lead screw. The lifting motor is arranged at one end of the frame, and the lead screw is coaxially arranged with the output shaft of the lifting motor.

[0023] By adopting the above technical solution, the lifting motor drives the lead screw to rotate to drive the lifting plate to move up and down. The lifting plate drives the stirring barrel to move up and down, and the operation of transporting the stirring barrel is relatively convenient.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The lead screw drives the lifting plate to move and stops moving when the opening of the mixing barrel is on one side of the cover plate. The mixing shaft drives the mixing frame to rotate for mixing. After mixing, the mixing barrel is cleared of materials. After the material clearing is completed, the mixing barrel needs to be cleaned. During cleaning, the driving member drives the scraping member to move. The scraping member moves to fit against the side wall of the mixing barrel. At this time, the mixing frame rotates to drive the scraping member to scrape and clean the side wall of the mixing barrel. After the cleaning is completed, the driving member drives the scraping member to return to its original position, which is convenient for the next mixing operation, and the operation of cleaning the mixing barrel is convenient and fast.

[0026] 2. The sliding collar drives the insertion rod to be inserted into the slot of the rotating block, and the second spring pushes the collar to drive the insertion rod to be tightly pressed. The scraping strip is fixed in position, which is convenient for cleaning operations.

[0027] 3. When the cover plate is located at the opening of the mixing barrel, the sealing ring is located in the annular sealing groove of the mixing barrel to seal the mixing barrel and reduce the probability of dust escaping during mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structural schematic diagram of the present application.

[0029] Figure 2 is a sectional view of the mixing shaft of the present application along the axial direction.

[0030] Figure 3 is a partial sectional structural schematic diagram of the mixing shaft of the present application along the axial direction.

[0031] Figure 4 is an enlarged sectional structural schematic diagram of part A of the present application.

[0032] Those skilled in the art will understand that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the dimensions and positions of some elements in the drawings may be enlarged relative to other elements to help improve the understanding of the embodiments of the present invention.

[0033] Reference numerals: 1, frame; 11, lifting plate; 111, placing ring; 12, lifting assembly; 121, lead screw; 122, lifting motor; 13, stirring assembly; 131, main spindle box; 132, stirring shaft; 1321, rotating groove; 1322, rotating hole; 1323, pressing ring; 1324, second spring; 14, cover plate; 141, sealing ring; 15, stirring barrel; 151, sealing groove; 2, scraping member; 21, scraping bar; 211, connecting bar; 212, connecting rod; 22, sliding rod; 3, driving member; 31, rotating rod; 311, rotating block; 3111, slot; 32, connecting rod; 4, stirring frame; 41, sliding hole; 42, first spring; 5, locking member; 51, collar; 52, inserting rod. Detailed implementation manners

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] An embodiment of the present application discloses a cement mortar mixer. Refer to Figure 1 , which includes a frame 1. A lifting plate 11 is horizontally arranged on the frame 1. The lifting plate 11 slides along the vertical direction of the frame 1. A lifting assembly 12 is arranged on the frame 1. The lifting assembly 12 includes a lead screw 121 and a lifting motor 122. The lead screw 121 is rotatably installed on the frame 1. The lifting plate 11 is threadedly connected to the lead screw 121. The lifting motor 122 is arranged at the top of the frame 1. The lead screw 121 is coaxially arranged with the output shaft of the lifting motor 122. A placing ring 111 is arranged on the lifting plate 11. The stirring barrel 15 is placed at the placing ring 111 of the lifting plate 11. The lifting motor 122 drives the lead screw 121 to rotate to drive the lifting plate 11 to move up and down. The lifting plate 11 drives the stirring barrel 15 to move up and down.

[0036] Refer to Figure 1 and Figure 2 , a stirring assembly 13 is arranged on the frame 1. The stirring assembly 13 includes a main spindle box 131 and a stirring shaft 132. The main spindle box 131 is arranged at the top of the frame 1. A rotating shaft is arranged on the lower side of the main spindle box 131. The stirring shaft 132 is vertically arranged on one side of the rotating shaft and is coaxially arranged with the rotating shaft. A cover plate 14 is horizontally arranged on the frame 1. The stirring shaft 132 is rotatably connected to the cover plate 14. When the stirring barrel 15 moves to a position where one side of its opening is in contact with one side of the cover plate 14, the movement stops. At this time, the cover plate 14 closes the stirring barrel 15.

[0037] Refer to Figure 2 , a stirring frame 4 is arranged on the stirring shaft 132. During stirring, the stirring frame 4 is located inside the stirring barrel 15. The main spindle box 131 drives the rotating shaft to rotate to drive the stirring shaft 132 to rotate. The stirring shaft 132 drives the stirring frame 4 to rotate to stir the materials in the stirring barrel 15.

[0038] Refer to Figure 2, scraping members 2 are slidably mounted on opposite sides of the stirring frame 4. A driving member 3 is provided on the stirring shaft 132. After the stirring in the stirring barrel 15 is completed and the material is cleared, the stirring barrel 15 is cleaned. At this time, the driving member 3 drives the scraping member 2 to move, and the scraping member 2 moves to fit against the side wall of the stirring barrel 15. At this time, the stirring frame 4 rotates to drive the scraping member 2 to scrape and clean the side wall of the stirring barrel 15. After the cleaning is completed, the driving member 3 drives the scraping member 2 to return to its original position, facilitating the next stirring operation. The operation of cleaning the stirring barrel 15 is convenient and fast.

[0039] Refer to Figure 2 , a sealing ring 141 is provided on the downward-facing side of the cover plate 14. An annular sealing groove 151 is provided on the inner ring of the opening of the stirring barrel 15. When the cover plate 14 is located at the opening of the stirring barrel 15, the sealing ring 141 is located at the annular sealing groove 151 of the stirring barrel 15, sealing the stirring barrel 15 and reducing the probability of dust escaping during stirring.

[0040] Refer to Figure 2 and Figure 3 , the scraping member 2 includes a scraping bar 21 and a sliding rod 22. Sliding holes 41 are provided on opposite side walls of the stirring frame 4 along the width direction of the stirring frame 4. The sliding rod 22 is slidably mounted in the sliding holes 41. The stirring frame 4 is provided with a first spring 42 at the sliding holes 41. One end of the first spring 42 is connected to the sliding rod 22, and the scraping bar 21 is provided at one end of the sliding rod 22. The scraping bar 21 is vertically arranged. During normal stirring, the first spring 42 pulls the sliding rod 22 to drive the scraping bar 21 to approach the side of the stirring frame 4 and rotates together with the stirring frame 4 during the stirring operation. When cleaning the side wall of the stirring barrel 15, one side of the scraping bar 21 fits against the inner side wall of the stirring barrel 15.

[0041] Refer to Figure 2 and Figure 3 , the driving member 3 includes a rotating rod 31 and a connecting rod 32. A rotating groove 1321 is provided at the downward end of the stirring shaft 132. The rotating rod 31 is rotatably mounted in the rotating groove 1321 of the stirring shaft 132 and is coaxially arranged with the stirring shaft 132. The downward end of the rotating rod 31 is located outside the stirring shaft 132. The connecting rod 32 is horizontally arranged at the downward end of the rotating rod 31. A rotating hole 1322 is opened on the inner side wall of the top wall of the rotating groove 1321 of the stirring shaft 132. A rotating block 311 is provided on the circumferential outer side wall of the rotating rod 31. The rotating block 311 rotates in the rotating hole 1322 of the stirring shaft 132, and one end of the rotating block 311 is located outside the stirring shaft 132. Pulling the rotating block 311 drives the rotating rod 31 to rotate and further drives the connecting rod 32 below the rotating rod 31 to rotate.

[0042] Refer to Figure 3, a connecting bar 211 is horizontally arranged at the lower end of the scraping bar 21 and on the side facing the stirring frame 4. One end of the connecting bar 211 is rotatably installed with a connecting rod 212, and the end of the connecting rod 212 away from the connecting bar 211 is rotatably connected to one end of the connecting rod 32. When the connecting rod 32 rotates, it drives the connecting rod 212 to rotate, thereby pulling the connecting bar 211 to move. The connecting bar 211 drives the scraping bar 21 to move to fit against the inner side wall of the stirring barrel 15 on one side of the scraping bar 21. When the stirring frame 4 rotates, the scraping bar 21 rotates with the stirring frame 4 for cleaning.

[0043] Referring to Figure 3 and Figure 4 , a locking member 5 is arranged on the stirring shaft 132. The locking member 5 includes a collar 51 and an insertion rod 52. The collar 51 is slidably installed on the outer circumferential side wall of the stirring shaft 132, and the collar 51 slides in the vertical direction. A tightening ring 1323 is fixedly arranged on the stirring shaft 132 above the collar 51. A second spring 1324 is arranged on the lower side of the tightening ring 1323. The lower end of the second spring 1324 is connected to one side of the collar 51. The insertion rod 52 is vertically arranged on the lower side surface of the collar 51. There are four insertion rods 52, and a slot 3111 is opened on the rotating block 311. When the rotating rod 31 rotates to the position where the scraping bar 21 is pushed out, the sliding collar 51 drives the insertion rod 52 to be inserted into the slot 3111 of the rotating block 311, and the second spring 1324 pushes the collar 51 to be tightened. At this time, the rotating rod 31 is fixed to the stirring shaft 132, and the scraping bar 21 is fixed to the rotating rod 31. When cleaning is not required, the collar 51 is slid and pushed to drive the insertion rod 52 to separate from the slot 3111, and the first spring 42 drives the scraping bar 21 to return to its original position. At this time, the collar 51 is released, and the insertion rod 52 on one side of the collar 51 is inserted into the slot 3111 of the rotating block 311, and the position of the scraping bar 21 is fixed and rotates with the stirring shaft 132.

[0044] The implementation principle of a cement mortar mixer in an embodiment of the present application is as follows: The stirring barrel 15 is placed on the lifting plate 11, and the lead screw 121 drives the lifting plate 11 to move. When the opening of the stirring barrel 15 is located on one side of the cover plate 14, the movement stops. At this time, the main spindle box 131 drives the rotating shaft to drive the stirring shaft 132 to rotate, thereby driving the stirring frame 4 to rotate for stirring. After stirring, the stirring barrel 15 is cleared of materials. After the material clearing is completed, the stirring barrel 15 needs to be cleaned. The rotating rod 31 is rotated to drive the scraping bar 21 to move. The scraping bar 21 moves to fit against the side wall of the stirring barrel 15. At this time, the collar 51 is pushed to one side so that the insertion rod 52 is inserted into the slot 3111 of the rotating block 311. At this time, the stirring frame 4 rotates to drive the scraping member 2 to scrape the side wall of the stirring barrel 15 for cleaning. After the cleaning is completed, the rotating rod 31 rotates to drive the scraping bar 21 to return to its original position, facilitating the next stirring operation.

[0045] The above are all preferred embodiments of this application, and do not limit the protection scope of this application. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A cement mortar mixer, comprising a frame (1), a lifting plate (11) being arranged on the frame (1), a lifting assembly (12) being arranged on the frame (1) for driving the lifting plate (11) to slide, a mixing barrel (15) being placed on the lifting plate (11), characterized in that: The frame (1) is provided with a stirring assembly (13), the stirring assembly (13) comprising a main shaft box (131) and a stirring shaft (132), the main shaft box (131) being provided on the frame (1), a rotating shaft being provided at the lower side of the main shaft box (131), the stirring shaft (132) being provided at one side of the rotating shaft, the frame (1) being provided with a cover plate (14) for closing the stirring barrel (15), the stirring shaft (132) being rotatably connected to the cover plate (14), the stirring shaft (132) being provided with a stirring frame (4), a scraper member (2) being slidably mounted at a side edge of the stirring frame (4), the sliding direction of the scraper member (2) being perpendicular to the axial direction of the stirring shaft (132), and the stirring shaft (132) being provided with a driving member (3) for driving the scraper member (2) to move.

2. A cement mortar mixer according to claim 1, characterized in that: The scraper member (2) comprises a scraper strip (21) and a slide rod (22), wherein the slide rod (22) is slidably connected to the side wall of the stirring frame (4), the scraper strip (21) is arranged at one end of the slide rod (22), the scraper strip (21) and the axis of the stirring shaft (132) are arranged parallel to each other, and one end of the scraper strip (21) is connected to the driving member (3).

3. A cement mortar mixer according to claim 2, characterized in that: A first spring (42) is provided at one end of the sliding rod (22) facing away from the scraper strip (21), and one end of the first spring (42) is connected to the stirring frame (4).

4. A cement mortar mixer according to claim 2, characterized in that: The driving member (3) comprises a rotating rod (31) and a connecting rod (32); the rotating rod (31) is rotatably connected to the stirring shaft (132) and is coaxially arranged; the connecting rod (32) is arranged at one end of the rotating rod (31); a connecting rod (212) is rotatably mounted on one end of the scraper bar (21); one end of the connecting rod (32) is rotatably connected to the connecting rod (212); and a locking member (5) for locking the rotating rod (31) is arranged on the stirring shaft (132).

5. A cement mortar mixer according to claim 4, characterized in that: The locking member (5) comprises a collar (51) and an insertion rod (52); the collar (51) is slidably mounted on the outside of the stirring shaft (132); a rotating block (311) is arranged on the rotating rod (31); a rotating hole (1322) for the rotating block (311) to rotate is provided on the stirring shaft (132); one end of the rotating block (311) is located outside the rotating hole (1322); the insertion rod (52) is arranged on a side surface of the collar (51); and a slot (3111) for the insertion rod (52) to be inserted is provided on the rotating block (311).

6. A cement mortar mixer according to claim 5, characterized in that: A tightening ring (1323) is provided on the stirring shaft (132), a second spring (1324) is provided on one side of the tightening ring (1323), and one end of the second spring (1324) is connected to one side of the sleeve ring (51).

7. A cement mortar mixer according to claim 1, characterized in that: A sealing ring (141) is provided on the side of the cover plate (14) facing downward, and an annular sealing groove (151) is provided on the inner ring of the opening of the mixing barrel (15).

8. The cement mortar mixer according to claim 1, characterized in that: The lifting assembly (12) comprises a screw rod (121) and a lifting motor (122); the screw rod (121) is rotatably mounted on the frame (1); the lifting plate (11) is threadedly connected to the screw rod (121); the lifting motor (122) is arranged at one end of the frame (1); and the screw rod (121) and an output shaft of the lifting motor (122) are coaxially arranged.

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