Intermittent premixed mortar cement concrete mixing device
By designing an intermittent mixing device, using a rotary motor and a servo motor to control the rotation and stop of the rotating rod, and combining it with a dust collection component, the problems of dust raising and inconvenient material dumping in existing devices are solved, achieving efficient mixing and environmentally friendly material dumping.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI THIRD HARBOR BENTENG MARITIME ENG CO LTD
- Filing Date
- 2022-06-10
- Publication Date
- 2026-07-07
AI Technical Summary
Existing premixed mortar and cement concrete mixing equipment lacks an intermittent operation mode, resulting in continuous mixing of raw materials after premixing, causing dust to be raised and raw materials to be lost, while also making material unloading inconvenient.
An intermittent mixing device comprising a drum assembly, a mixing assembly, and a dust collection assembly was designed. The rotation and stopping of the rotating rod are controlled by a rotary motor and a servo motor, and intermittent mixing is achieved in combination with a pneumatic push rod. The dust collection assembly is also equipped to collect dust.
It enables the stopping of mixing after the raw materials are premixed, preventing dust from being raised, reducing raw material consumption, reducing gas pollution through the dust collection component, and simplifying the material pouring process.
Smart Images

Figure CN115008608B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mixing equipment technology, and in particular to an intermittent premixed mortar and cement concrete mixing device. Background Technology
[0002] A mixer is a machine that mixes cement, sand, aggregates, and water to produce mortar mixtures. It mainly consists of a mixing drum, feeding and unloading mechanisms, a water supply system, a prime mover, a transmission mechanism, a frame, and support devices. Thermal insulation mortar mixers can meet the production needs of dry powder mortars, dry powder materials, and dry powder adhesives with different performance requirements, such as putty powder, dry powder coatings, masonry mortar, plastering mortar, mortar for insulation systems, decorative mortar, and various other dry powder mortars. They also have many advantages, including small footprint, low investment, quick results, and simple operation. A mixer is a device used to mix mortar, cement, and concrete. When the machine is working, the material inside is subjected to the action of two rotors in opposite directions, resulting in a compound motion. The blades drive the material to rotate counterclockwise along the inner wall of the trough, while also causing the material to tumble left and right. In the weightless zone where the two rotors intersect and overlap, regardless of the shape, size, or density of the material, it can float and be in a state of instantaneous weightlessness. This causes the material to form a continuous, all-round circulation and tumbling within the trough, with mutual cross-shearing, thereby achieving a rapid, gentle, and uniform mixing effect.
[0003] Existing premixed mortar and cement concrete mixing equipment typically operates by continuously mixing with a mixing paddle, lacking an intermittent operation mode. This makes it easy for the mixing paddle to continue mixing after the raw materials are premixed, causing dust to be stirred up and a large amount of raw materials to be lost. At the same time, the equipment is inconvenient for unloading materials. Summary of the Invention
[0004] The purpose of this invention is to provide an intermittent premixed mortar and cement concrete mixing device to solve the above-mentioned problems. This addresses the issue that existing premixed mortar and cement concrete mixing devices typically operate by continuously mixing with a mixing paddle, lacking an intermittent operation mode. As a result, during premixing, the mixing paddle continues to operate after the raw materials are premixed, causing dust to be stirred up and a large amount of raw materials to be lost. Additionally, the device is inconvenient for discharging materials.
[0005] The present invention achieves the above-mentioned objective through the following technical solution: an intermittent premixed mortar and cement concrete mixing device, comprising: a base; two support plates fixed to the upper surface of the base, a roller assembly installed between the two support plates, the roller assembly being used to load mortar and cement concrete, a bearing bracket installed between the support plates and the roller assembly, the bearing bracket being used to drive the roller assembly to rotate from a first initial position to a first final position, a rotating motor embedded on one side of the support plate and drivenly connected to the bearing bracket, a mixing component installed above the roller assembly, the mixing component being used to mix the mortar and cement concrete inside the roller assembly; and a dust collection component installed at the rear end of the roller assembly.
[0006] Preferably, the stirring assembly includes a pneumatic push rod fitted into one side of the support plate, a cross plate fixed to the extended end of the pneumatic push rod, a guide rod fixed to the other side of the support plate, and a guide sleeve fitted onto the surface of the guide rod and fixed to the other end of the cross plate.
[0007] Preferably, the lower end face of the cross plate is rotatably mounted with a slot via a bearing, and the slot is sleeved with the surface of the card block.
[0008] Preferably, a servo motor that is connected to the card slot drive is fixed on the upper end surface of the horizontal plate.
[0009] Preferably, the dust collection assembly includes a chamber fixed between the two support plates, an air pump is fixed at the bottom of the chamber's inner cavity, an exhaust pipe is fixed through the air pump's output end through the chamber, and the chamber's input end is positioned opposite to the cylinder's opening end.
[0010] Preferably, the roller assembly includes a cylinder disposed between two bearing frames, a support frame fixed at the upper open end of the cylinder, a bearing seat fixed at the support frame near the center line of the cylinder, a rotating rod rotatably mounted inside the bearing seat via a bearing, multiple display frames fixed at the lower end face of the rotating rod, vertical plates fixed at the extended ends of the multiple display frames, multiple springs fixed on the surface of the vertical plates, scrapers fitted to the inner cavity of the cylinder fixed at the extended ends of the springs, and a locking block fixed at the upper end face of the rotating rod.
[0011] Preferably, casters are installed around the bottom of the base, and the casters are used to drive the device to move.
[0012] Preferably, the rotating rod forms a transmission structure with the servo motor through a locking block, a guide sleeve, and the servo motor.
[0013] Preferably, a filter screen is inserted into the middle of the inner cavity of the chamber, a baffle is fixed to the extended end of the filter screen, a handle is fixed to the surface of the baffle, a connecting plate is fixed to one side of the inner cavity of the chamber, a plurality of springs are fixed to the lower end face of the connecting plate, and a brush is fixed to the extended end of the plurality of springs.
[0014] Preferably, a discharge trough is provided on one side of the bottom of the silo body, and the output end of the discharge trough is connected to the base.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] In this invention, the drum assembly can rotate freely, allowing the rotating rod installed inside the drum to connect with the mixing assembly for mixing. Simultaneously, the pneumatic pusher can separate the slot from the block, causing the rotating rod to lose power and stop rotating, achieving intermittent operation. This allows the mixing operation to stop after multiple raw materials are premixed, preventing the generation of large amounts of raw material dust and reducing raw material consumption during operation. Furthermore, the dust collection assembly can recover the generated dust during mixing, preventing gas pollution and reducing raw material loss. The drum can also be rotated for rapid unloading. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of the stirring component in this invention;
[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0020] Figure 4 This is a schematic diagram of the structure of the roller assembly in this invention;
[0021] Figure 5 This is a schematic diagram of the dust collection component in this invention.
[0022] In the diagram: 1. Base; 2. Casters; 3. Support plate; 4. Bearing frame; 5. Roller assembly; 501. Cylinder; 502. Support frame; 503. Bearing seat; 504. Rotating rod; 505. Display rack; 506. Vertical plate; 507. Spring 1; 508. Scraper; 509. Locking block; 6. Rotating motor; 7. Mixing assembly; 701. Pneumatic push rod; 702. Horizontal plate; 703. Guide rod; 704. Guide sleeve; 705. Slot; 706. Servo motor; 8. Dust collection assembly; 801. Bin; 802. Air pump; 803. Exhaust pipe; 804. Discharge chute; 805. Filter screen; 806. Baffle; 807. Handle; 808. Connecting plate; 809. Spring 2; 810. Brush. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] In practical implementation: such as Figure 1-5As shown, an intermittent premixed mortar and cement concrete mixing device includes: a base 1, with casters 2 installed around the bottom of the base 1 for driving the device to move; two support plates 3 fixed to the upper surface of the base 1, with a roller assembly 5 installed between the two support plates 3 for loading mortar and cement concrete; a bearing bracket 4 installed between the support plates 3 and the roller assembly 5 for driving the roller assembly 5 to rotate from a first initial position to a first final position; a rotary motor 6, which is drively connected to the bearing bracket 4, is embedded on one side of the support plate 3; and the roller assembly 5 includes a cylinder 501 disposed between the two bearing brackets 4. A support frame 502 is fixed at the upper open end of the cylinder 501. A bearing seat 503 is fixed at the support frame 502 near the center line of the cylinder 501. A rotating rod 504 is mounted inside the bearing seat 503 via a bearing. Multiple display racks 505 are fixed to the lower end of the rotating rod 504. Vertical plates 506 are fixed to the extended ends of the multiple display racks 505. Multiple springs 507 are fixed to the surface of the vertical plates 506. A scraper 508 that fits against the inner cavity of the cylinder 501 is fixed to the extended end of the springs 507. A locking block 509 is fixed to the upper end of the rotating rod 504. A mixing assembly 7 is installed above the drum assembly 5. The mixing assembly 7 is used to mix the mortar and cement inside the drum assembly 5. The concrete is mixed; and the dust collection component 8, installed at the rear end of the drum assembly 5, is used to fix the drum body 501 between the bearing brackets 4 by bolts. The cement concrete to be premixed is poured into the drum body 501. The output end of the rotating motor 6 rotates, causing the bearing brackets 4 to rotate, which in turn causes the drum body 501 to rotate. When the drum body 501 rotates, the rotating rod 504 installed in the inner cavity adjusts the angle, so that the locking block 509 fixed at the upper end of the rotating rod 504 is locked into the locking groove 705. At this time, the output end of the servo motor 706 rotates, causing the locking groove 705 to rotate. When the locking groove 705 rotates, it drives the internal locking mechanism to engage. The rotating block 509 rotates, causing its rotating rod 504 to rotate within the bearing seat 503. When the rotating rod 504 rotates, it drives the vertical plate 506 to rotate via the display frame 505. The vertical plate 506, through the surface spring 507, presses the scraper 508 against the inner wall of the cylinder 501. Together with the display frame 505, it can pre-mix the mortar, cement, and concrete inside the cylinder 501. When it is necessary to discharge the material, the output end of the rotating motor 6 is rotated, causing the bearing frame 4 to rotate by an angle. This causes the bearing frame 4 to rotate the cylinder 501 by an angle, so that the open end of the cylinder 501 faces downwards, allowing the pre-mixed material inside to be poured out.
[0025] like Figures 2-3As shown, the stirring assembly 7 includes a pneumatic push rod 701 fitted into one side of the support plate 3. A horizontal plate 702 is fixed to the extended end of the pneumatic push rod 701. A guide rod 703 is fixed to the other side of the support plate 3. A guide sleeve 704, which is fixed to the other end of the horizontal plate 702, is sleeved on the surface of the guide rod 703. A slot 705 is rotatably mounted on the lower end face of the horizontal plate 702 via a bearing. The slot 705 is sleeved with the surface of the locking block 509. A servo motor 7, which is drively connected to the slot 705, is fixed to the upper end face of the horizontal plate 702. 06. The rotating rod 504 forms a transmission structure with the locking block 509, the guide sleeve 704 and the servo motor 706. After the pre-mixing is completed, the horizontal plate 702 is pushed upward by the telescopic end of the pneumatic push rod 701. The guide sleeve 704 on one side of the horizontal plate 702 moves upward on the surface of the guide rod 703, which drives the locking groove 705 to move upward. The locking groove 705 releases the locking block 509, so that the rotating rod 504 at the bottom of the locking block 509 loses power and can stop the rotation mixing operation.
[0026] like Figure 5 As shown, the vacuuming assembly 8 includes a chamber 801 fixed between two support plates 3. An air pump 802 is fixed to the bottom of the inner cavity of the chamber 801. An exhaust pipe 803 is fixed to the output end of the air pump 802 through the chamber 801. The input end of the chamber 801 is opposite to the opening end of the cylinder 501. A filter screen 805 is inserted into the middle of the inner cavity of the chamber 801. A baffle 806 is fixed to the extended end of the filter screen 805. A handle 807 is fixed to the surface of the baffle 806. A connecting plate 808 is fixed to one side of the inner cavity of the chamber 801. Multiple springs 809 are fixed to the lower end of the connecting plate 808. A brush 810 is fixed to the extended end of the multiple springs 809. A discharge trough 804 is opened on one side of the bottom of the chamber 801. The output end of the discharge trough 804 is connected to the base 1. During the stirring process, the air pump 802 operates to generate suction at the input end of the chamber 801. This process absorbs the dust raised at the opening of the cylinder 501 during mixing, drawing it into the chamber 801 and causing it to accumulate on the surface of the filter screen 805. Gas is discharged through the filter screen 805, and dust is collected on its surface. When the filter screen 805 becomes clogged, the handle 807 is manually pulled, causing the baffle 806 to move the filter screen 805. The filter screen 805 is pulled in and out of the chamber 801, causing the brush 810 to scrape and clean its surface. At the same time, the elasticity of the spring 809 compresses the brush 810 to fit tightly against the filter screen 805. After cleaning the filter screen 805, it is reinserted into the chamber 801. During the pulling of the filter screen 805, the accumulated dust is discharged from the discharge chute 804 at the bottom of the chamber 801, allowing it to slide onto the surface of the base 1 and accumulate.
[0027] In use, the device is first pushed to move it to the working area via the casters 2 mounted on the bottom of the base 1. The cylinder 501 is then fixed to the bearing brackets 4 with bolts. The pre-mixed mortar / cement concrete is poured into the cylinder 501. The output of the rotating motor 6 rotates the bearing brackets 4, causing them to rotate and the cylinder 501 to flip. As the cylinder 501 flips, the rotating rod 504 installed inside adjusts its angle, causing the locking block 509 fixed at the upper end of the rotating rod 504 to engage with the locking slot 705. At this point, the output of the servo motor 706 rotates, causing the locking slot 705 to rotate. When 05 rotates, it drives the internally engaged locking block 509 to rotate, thereby causing the rotating rod 504 to rotate within the bearing seat 503. When the rotating rod 504 rotates, it drives the vertical plate 506 to rotate through the display frame 505. The vertical plate 506, through the surface spring 507, presses the scraper 508 against the inner wall of the cylinder 501, and, together with the display frame 505, pre-mixes the mortar, cement, and concrete inside the cylinder 501. During the mixing process, the air pump 802 operates, generating suction at the input end of the chamber 801, thereby adsorbing the dust raised at the opening end of the cylinder 501 during the mixing operation, drawing the dust into the chamber 801, and causing it to accumulate on the filter screen. On the surface of filter 805, gas passes through filter 805 and is discharged, while dust is collected on the surface of filter 805. When filter 805 becomes clogged, handle 807 is manually pulled, causing baffle 806 to move filter 805. Filter 805 is then pulled within the chamber 801, causing brush 810 to scrape and clean its surface. Simultaneously, the elasticity of spring 809 compresses brush 810 to ensure it fits tightly against filter 805. After cleaning filter 805, it is reinserted into the chamber 801. During the pulling process, accumulated dust is discharged from the discharge chute 804 at the bottom of chamber 801, slides onto the surface of base 1, and accumulates. After manual cleaning and pre-mixing, the horizontal plate 702 is moved upward by the telescopic end of the pneumatic push rod 701. The guide sleeve 704 on one side of the horizontal plate 702 moves upward on the surface of the guide rod 703, causing the slot 705 to move upward. The slot 705 releases the locking block 509, thereby causing the rotating rod 504 at the bottom of the locking block 509 to lose power and stop the rotation and mixing operation. When it is necessary to discharge the material, the output end of the rotating motor 6 is rotated, which drives the bearing bracket 4 to rotate by an angle. This causes the bearing bracket 4 to rotate the cylinder 501 by an angle, so that the open end of the cylinder 501 faces downward, allowing the pre-mixed material inside to be poured out. This completes the working principle of the present invention.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An intermittent premixed mortar / cement concrete mixing device, characterized in that, include: A base (1); two support plates (3) fixed to the upper surface of the base (1), a roller assembly (5) installed between the two support plates (3), the roller assembly (5) being used to load mortar cement concrete, a bearing bracket (4) installed between the support plates (3) and the roller assembly (5), the bearing bracket (4) being used to drive the roller assembly (5) to rotate from a first initial position to a first final position, a rotating motor (6) with transmission connection to the bearing bracket (4) is fitted on one side of the support plate (3), a stirring assembly (7) installed above the roller assembly (5), the stirring assembly (7) being used to stir the mortar cement concrete in the roller assembly (5); and a dust collection assembly (8) installed at the rear end of the roller assembly (5); The stirring assembly (7) includes a pneumatic push rod (701) fitted into one side of the support plate (3), a horizontal plate (702) fixed to the extended end of the pneumatic push rod (701), a guide rod (703) fixed to the other side of the support plate (3), a guide sleeve (704) fixed to the other end of the horizontal plate (702) sleeved on the surface of the guide rod (703); a slot (705) is rotatably mounted on the lower end face of the horizontal plate (702) through a bearing, the slot (705) sleeved with the surface of the slot (509); a servo motor (706) is fixed on the upper end face of the horizontal plate (702) and is drivenly connected to the slot (705); The roller assembly (5) includes a cylinder (501) disposed between two bearing frames (4). A support frame (502) is fixed at the upper open end of the cylinder (501). A bearing seat (503) is fixed at the support frame (502) near the center line of the cylinder (501). A rotating rod (504) is rotatably mounted inside the bearing seat (503) via a bearing. Multiple display frames (505) are fixed to the lower end face of the rotating rod (504). A vertical plate (506) is fixed to the extended end of the display stand (505), and a plurality of springs (507) are fixed to the surface of the vertical plate (506). A scraper (508) that fits against the inner cavity of the cylinder (501) is fixed to the extended end of the springs (507). A locking block (509) is fixed to the upper end face of the rotating rod (504). The vertical plate (506) presses the scraper (508) against the inner wall of the cylinder (501) by the springs (507) on its surface. The rotating rod (504) forms a transmission structure with the locking block (509), the guide sleeve (704) and the servo motor (706); after the pre-stirring is completed, the horizontal plate (702) is pushed upward by the telescopic end of the pneumatic push rod (701), and the guide sleeve (704) on one side of the horizontal plate (702) moves upward on the surface of the guide rod (703), which drives the locking groove (705) to move upward, and the locking groove (705) releases the locking block (509).
2. The intermittent premixed mortar and cement concrete mixing device according to claim 1, characterized in that: The dust collection assembly (8) includes a chamber (801) fixed between the two support plates (3). An air pump (802) is fixed at the bottom of the inner cavity of the chamber (801). An exhaust pipe (803) is fixed through the output end of the air pump (802) through the chamber (801). The input end of the chamber (801) is opposite to the opening end of the cylinder (501).
3. The intermittent premixed mortar and cement concrete mixing device according to claim 1, characterized in that: The base (1) is equipped with casters (2) around its bottom edge, which are used to drive the device to move.
4. The intermittent premixed mortar and cement concrete mixing device according to claim 2, characterized in that: The feature is that: a filter screen (805) is inserted into the middle of the inner cavity of the chamber (801), a baffle (806) is fixed to the extended end of the filter screen (805), a handle (807) is fixed to the surface of the baffle (806), a connecting plate (808) is fixed to one side of the inner cavity of the chamber (801), a plurality of springs (809) are fixed to the lower end face of the connecting plate (808), and a brush (810) is fixed to the extended end of the plurality of springs (809).
5. The intermittent premixed mortar and cement concrete mixing device according to claim 2, characterized in that: A discharge trough (804) is provided on one side of the bottom of the silo body (801), and the output end of the discharge trough (804) is connected to the base (1).