CN112427115A - Special mortar mixing machine for building concrete wall - Google Patents
Special mortar mixing machine for building concrete wall Download PDFInfo
- Publication number
- CN112427115A CN112427115A CN202011460312.2A CN202011460312A CN112427115A CN 112427115 A CN112427115 A CN 112427115A CN 202011460312 A CN202011460312 A CN 202011460312A CN 112427115 A CN112427115 A CN 112427115A
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- Prior art keywords
- fixedly connected
- mixing chamber
- motor
- crushing
- mixing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C2018/147—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers of the plural stage type
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a special mortar mixing machine for building a concrete wall, which comprises a first mixing chamber, a feeding hole, a material blocking block, a mounting rod, a crushing disc, a crushing cutter bar, an arc-shaped filter screen, an inclined plate, a crushing box, a filter plate, a crushing blade, a first motor, a first rotating shaft, a conveying shaft, a second motor, a discharging hole and the like; the invention has reasonable and simple structure, low production cost, convenient installation and complete functions, and improves the uniformity of mortar mixing by refining the raw materials and then mixing and stirring; the invention is provided with a multiple stirring structure at the same time, and can effectively mix and stir the mortar; the mortar sampling structure is arranged, so that sampling inspection can be effectively performed in the mortar stirring process, and the quality of finished products is greatly improved.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a mortar mixing machine special for building a concrete wall.
Background
The mortar is a bonding substance used for building bricks on a building, and is formed by adding water into sand and cementing materials (cement, lime paste, clay and the like) according to a certain proportion, and is also called mortar and also used as mortar; the mortar is prepared by mixing a cementing material (cement, lime, clay, etc.) and a fine aggregate (sand) with water, and the common mortar is cement mortar, mixed mortar (or cement lime mortar), lime mortar and clay mortar.
Wherein the plastering mortar is prepared by plastering dry powder which is prepared by high-quality cement, fine aggregate and various high-performance additives; the mortar is suitable for plastering walls and high-water-absorption materials, and in the process of plastering mortar, the agglomerated sand in the aggregate and the particles with larger particle sizes in the aggregate are directly mixed, so that the mortar is easily mixed unevenly, the stirring efficiency is reduced, and even the quality of the mortar is reduced, so that a technology is needed to make up for the defect.
Disclosure of Invention
The invention aims to solve the problems that the direct mixing of agglomerated sand in aggregate and particles with larger particle sizes in aggregate is easy to cause uneven mixing of mortar, the stirring efficiency is reduced, and even the quality of mortar is reduced.
In order to solve the above problems, the present invention provides a technical solution: a mortar mixing machine special for building concrete wall construction comprises a first mixing chamber, a feeding hole, a material blocking block, a mounting rod, a crushing disc, a crushing cutter rod, an arc-shaped filter screen, an inclined plate, a crushing box, a filter plate, a crushing blade, a first motor, a first rotating shaft, a conveying shaft, a second motor and a discharging hole; the two sides of the upper surface of the first mixing chamber are fixedly communicated with feed inlets, and the top end of the inner part of the cavity of the first mixing chamber is fixedly connected with a material blocking block; the upper end of the right cavity of the first mixing chamber is fixedly connected with an installation rod, the left end of the installation rod is movably connected with a crushing disc, and a plurality of crushing cutter rods are fixedly connected onto the crushing disc; an arc-shaped filter screen is arranged below the crushing disc; the middle end positions of the chamber walls at the left side and the right side of the first mixing chamber are fixedly connected with inclined plates; the lower end of the inner part of the first mixing chamber cavity is fixedly connected with a crushing box, the right side surface of the crushing box is fixedly connected with a first motor, a first rotating shaft is movably connected in the crushing box, the first rotating shaft is fixedly connected with an output shaft of the first motor, a plurality of crushing blades are fixedly connected on the first rotating shaft, and the bottom end of the crushing box is fixedly connected with a filter plate; a discharge hole is fixedly communicated with the bottom end of the right side surface of the first mixing chamber; the bottom end of the left side face of the first mixing chamber is fixedly connected with a second motor, a conveying shaft is arranged at the bottom end inside the cavity of the first mixing chamber, and the conveying shaft is fixedly connected with an output shaft of the second motor.
Preferably, the device also comprises a second mixing chamber, supporting legs, a discharging nozzle, a valve plate, a third motor, a second rotating shaft, an upper mounting rod, a lower mounting rod, a connecting rod, a mixing rod, a spiral shaft, an inspection chamber, a piston, a pneumatic cylinder and a discharging pipe; the second mixing chamber is positioned at the right lower part of the discharge hole; the periphery of the lower surface of the second mixing chamber is fixedly connected with supporting legs; a third motor is fixedly connected to the center of the lower surface of the second mixing chamber, discharge nozzles are fixedly communicated with the two sides of the lower surface of the second mixing chamber, and a valve plate is connected to the discharge nozzles in a sliding manner; a second rotating shaft is fixedly connected to an output shaft of the third motor and is positioned in the cavity of the second mixing chamber; the outer surface of the second rotating shaft is fixedly connected with a spiral shaft, the top end of the second rotating shaft is fixedly connected with an upper mounting rod, and the tail end of the second rotating shaft is fixedly connected with a lower mounting rod; a connecting rod is fixedly connected between the two sides of the upper mounting rod and the lower mounting rod, and a plurality of mixing rods are fixedly connected to the connecting rod; the lower end of the right side surface of the second mixing chamber is fixedly communicated with an inspection chamber; a piston is connected in the inspection chamber in a sliding manner, a pneumatic cylinder is fixedly connected to the right side surface of the inspection chamber, and the output end of the pneumatic cylinder is fixedly connected with the piston; and a discharge pipe is fixedly communicated with the left side of the bottom end of the inspection chamber.
Preferably, the specific connection relationship between the first mixing chamber and the arc filter screen is as follows: grooves are formed in the upper ends of the chamber walls on the left side and the right side of the first mixing chamber; sliding blocks are fixedly connected to two sides of the top end of the arc-shaped filter screen; the sliding block is connected in the groove in a sliding manner; and springs are fixedly connected between the upper end and the lower end of the sliding block and the grooves.
Preferably, the spring is a disc spring.
Preferably, the discharge nozzle is in a bell mouth shape.
Preferably, the first motor and the second motor are both variable frequency motors.
The invention has the beneficial effects that:
(1) the invention has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions, and improves the uniformity of mortar mixing by refining the raw materials and then mixing and stirring the refined raw materials.
(2) The invention is provided with a multiple stirring structure at the same time, and can effectively mix and stir mortar.
(3) The mortar sampling structure is arranged, so that sampling inspection can be effectively performed in the mortar stirring process, and the quality of finished products is greatly improved.
Drawings
FIG. 1 is a schematic view of a first mixing chamber according to the present invention.
FIG. 2 is a schematic diagram of a second mixing chamber according to the present invention.
FIG. 3 is a schematic view of the first mixing chamber and the curved filter screen according to the present invention.
1-a first mixing chamber; 2-a feed inlet; 3-a material blocking block; 4-mounting a rod; 5-a crushing disc; 6-crushing a cutter bar; 7-arc filter screen; 8-sloping plate; 9-crushing box; 10-a filter plate; 11-a crushing blade; 12-a first electric machine; 13-a first shaft; 14-a transport shaft; 15-a second motor; 16-a discharge hole; 17-a second mixing chamber; 18-supporting feet; 19-a discharge nozzle; 20-a valve plate; 21-a third motor; 22-a second shaft; 23-mounting a rod; 24-lower mounting bar; 25-a connecting rod; 26-a mixing rod; 27-a helical axis; 28-an examination room; 29-a piston; 30-a pneumatic cylinder; 31-a discharge pipe; 32-grooves; 33-a slider; 34-spring.
Detailed Description
As shown in fig. 1 to 3, the following technical solutions are adopted in the present embodiment: a mortar mixing machine special for building concrete wall construction comprises a first mixing chamber 1, a feeding hole 2, a material blocking block 3, a mounting rod 4, a crushing disc 5, a crushing cutter bar 6, an arc-shaped filter screen 7, an inclined plate 8, a crushing box 9, a filter plate 10, a crushing blade 11, a first motor 12, a first rotating shaft 13, a conveying shaft 14, a second motor 15 and a discharging hole 16; both sides of the upper surface of the first mixing chamber 1 are fixedly communicated with a feeding hole 2, and the top end inside the cavity of the first mixing chamber 1 is fixedly connected with a material blocking block 3; the upper end of the right cavity of the first mixing chamber 1 is fixedly connected with an installation rod 4, the left end of the installation rod 4 is movably connected with a crushing disc 5, and a plurality of crushing cutter rods 6 are fixedly connected on the crushing disc 5; an arc-shaped filter screen 7 is arranged below the crushing disc 5; the middle end positions of the chamber walls at the left side and the right side of the first mixing chamber 1 are fixedly connected with inclined plates 8; the lower end in the cavity of the first mixing chamber 1 is fixedly connected with a crushing box 9, the right side surface of the crushing box 9 is fixedly connected with a first motor 12, a first rotating shaft 13 is movably connected in the crushing box 9, the first rotating shaft 13 is fixedly connected with an output shaft of the first motor 12, a plurality of crushing blades 11 are fixedly connected on the first rotating shaft 13, and the bottom end of the crushing box 9 is fixedly connected with a filter plate 10; a discharge hole 16 is fixedly communicated with the bottom end of the right side surface of the first mixing chamber 1; fixedly connected with second motor 15 on the left surface bottom of first mixing chamber 1, be equipped with transport shaft 14 on the inside bottom of first mixing chamber 1 cavity, transport shaft 14 is in the same place with second motor 15's output shaft fixed connection.
As shown in fig. 1 to 3, the device further comprises a second mixing chamber 17, supporting legs 18, a discharging nozzle 19, a valve plate 20, a third motor 21, a second rotating shaft 22, an upper mounting rod 23, a lower mounting rod 24, a connecting rod 25, a mixing rod 26, a screw shaft 27, an inspection chamber 28, a piston 29, a pneumatic cylinder 30 and a discharging pipe 31; the second mixing chamber 17 is positioned at the lower right part of the discharge hole 16; the periphery of the lower surface of the second mixing chamber 17 is fixedly connected with supporting legs 18; a third motor 21 is fixedly connected to the center of the lower surface of the second mixing chamber 17, discharge nozzles 19 are fixedly communicated with the two sides of the lower surface of the second mixing chamber 17, and a valve plate 20 is slidably connected in the discharge nozzles 19; a second rotating shaft 22 is fixedly connected to an output shaft of the third motor 21, and the second rotating shaft 22 is located in the cavity interior of the second mixing chamber 17; a spiral shaft 27 is fixedly connected to the outer surface of the second rotating shaft 22, an upper mounting rod 23 is fixedly connected to the top end of the second rotating shaft 22, and a lower mounting rod 24 is fixedly connected to the tail end of the second rotating shaft 22; a connecting rod 25 is fixedly connected between the two sides of the upper mounting rod 23 and the lower mounting rod 24, and a plurality of mixing rods 26 are fixedly connected to the connecting rod 25; an inspection chamber 28 is fixedly communicated with the lower end of the right side surface of the second mixing chamber 17; a piston 29 is connected in the inspection chamber 28 in a sliding manner, a pneumatic cylinder 30 is fixedly connected to the right side surface of the inspection chamber 28, and the output end of the pneumatic cylinder 30 is fixedly connected with the piston 29; a discharge pipe 31 is fixedly communicated with the left side of the bottom end of the inspection chamber 28.
As shown in fig. 1 to 3, the specific connection relationship between the first mixing chamber 1 and the arcuate filter 7 is as follows: grooves 32 are formed in the upper ends of the chamber walls on the left side and the right side of the first mixing chamber 1; sliding blocks 33 are fixedly connected to two sides of the top end of the arc-shaped filter screen 7; the sliding block 33 is connected in the groove 32 in a sliding manner; and springs 34 are fixedly connected between the upper end and the lower end of the sliding block 33 and the groove 32.
Wherein the spring 34 is a disc spring; the discharging nozzle 19 is in a bell mouth shape; the first motor 12 and the second motor 15 are both variable frequency motors.
The using state of the invention is as follows: the raw materials drop into from feed inlet 2, then smash the external drive arrangement of dish 5 and smash, it passes ARC filter 7 and enters into crushing case 9 after smashing, first motor 12 drives crushing blade 11 and continues the breakage to the raw materials, it passes filter 10 and enters into the cavity bottom surface of first mixing chamber 1 to smash the back, second motor 15 drives transportation axle 14 at last and rotates and transports the raw materials to second mixing chamber 2, after adding water, third motor 21 drives second pivot 22 and rotates, utilize from top to bottom installation pole and mixing rod 26 to carry out the mixing stirring of mortar, in the working process, can utilize pneumatic cylinder 30 to drive piston 29 and move right, put out the mortar from discharging pipe 31 and inspect, after mixing, open valve plate 20, emit the mortar.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
The control mode of the invention is controlled by manually starting and closing the switch, the wiring diagram of the power element and the supply of the power source belong to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the wiring arrangement are not explained in detail in the invention.
Claims (6)
1. The utility model provides a special mortar mixing machine of building concrete wall building which characterized in that: the device comprises a first mixing chamber (1), a feeding hole (2), a material blocking block (3), a mounting rod (4), a crushing disc (5), a crushing cutter bar (6), an arc-shaped filter screen (7), an inclined plate (8), a crushing box (9), a filter plate (10), a crushing blade (11), a first motor (12), a first rotating shaft (13), a conveying shaft (14), a second motor (15) and a discharging hole (16);
both sides of the upper surface of the first mixing chamber (1) are fixedly communicated with a feeding hole (2), and the top end inside the cavity of the first mixing chamber (1) is fixedly connected with a material blocking block (3);
the upper end of a cavity on the right side of the first mixing chamber (1) is fixedly connected with an installation rod (4), the left end of the installation rod (4) is movably connected with a crushing disc (5), and a plurality of crushing cutter rods (6) are fixedly connected on the crushing disc (5);
an arc-shaped filter screen (7) is arranged below the crushing disc (5);
the middle end positions of the chamber walls at the left side and the right side of the first mixing chamber (1) are fixedly connected with inclined plates (8);
the lower end in the cavity of the first mixing chamber (1) is fixedly connected with a crushing box (9), the right side surface of the crushing box (9) is fixedly connected with a first motor (12), a first rotating shaft (13) is movably connected in the crushing box (9), the first rotating shaft (13) is fixedly connected with an output shaft of the first motor (12), a plurality of crushing blades (11) are fixedly connected on the first rotating shaft (13), and a filter plate (10) is fixedly connected at the bottom end of the crushing box (9);
a discharge hole (16) is fixedly communicated with the bottom end of the right side surface of the first mixing chamber (1);
fixedly connected with second motor (15) on first mixing chamber (1) left surface bottom, be equipped with transport axle (14) on the inside bottom of first mixing chamber (1) cavity, transport axle (14) are in the same place with the output shaft fixed connection of second motor (15).
2. The mortar mixing machine special for building concrete wall construction according to claim 1, wherein: the device also comprises a second mixing chamber (17), supporting legs (18), a discharging nozzle (19), a valve plate (20), a third motor (21), a second rotating shaft (22), an upper mounting rod (23), a lower mounting rod (24), a connecting rod (25), a mixing rod (26), a spiral shaft (27), an inspection chamber (28), a piston (29), a pneumatic cylinder (30) and a discharging pipe (31);
the second mixing chamber (17) is positioned at the right lower part of the discharge hole (16);
supporting legs (18) are fixedly connected to the periphery of the lower surface of the second mixing chamber (17);
a third motor (21) is fixedly connected to the center of the lower surface of the second mixing chamber (17), discharge nozzles (19) are fixedly communicated with the two sides of the lower surface of the second mixing chamber (17), and a valve plate (20) is connected to the discharge nozzles (19) in a sliding manner;
a second rotating shaft (22) is fixedly connected to an output shaft of the third motor (21), and the second rotating shaft (22) is positioned in the cavity of the second mixing chamber (17);
a spiral shaft (27) is fixedly connected to the outer surface of the second rotating shaft (22), an upper mounting rod (23) is fixedly connected to the top end of the second rotating shaft (22), and a lower mounting rod (24) is fixedly connected to the tail end of the second rotating shaft (22);
a connecting rod (25) is fixedly connected between the two sides of the upper mounting rod (23) and the lower mounting rod (24), and a plurality of mixing rods (26) are fixedly connected to the connecting rod (25);
the lower end of the right side surface of the second mixing chamber (17) is fixedly communicated with an inspection chamber (28);
a piston (29) is connected in the inspection chamber (28) in a sliding manner, a pneumatic cylinder (30) is fixedly connected to the right side surface of the inspection chamber (28), and the output end of the pneumatic cylinder (30) is fixedly connected with the piston (29);
a discharge pipe (31) is fixedly communicated on the left side of the bottom end of the inspection chamber (28).
3. The mortar mixing machine special for building concrete wall construction according to claim 1, wherein: the specific connection relationship between the first mixing chamber (1) and the arc-shaped filter screen (7) is as follows:
grooves (32) are formed in the upper ends of the chamber walls of the left side and the right side of the first mixing chamber (1);
sliding blocks (33) are fixedly connected to two sides of the top end of the arc-shaped filter screen (7);
the sliding block (33) is connected in the groove (32) in a sliding manner;
and springs (34) are fixedly connected between the upper end and the lower end of the sliding block (33) and the groove (32).
4. The mortar mixing machine special for building concrete wall construction according to claim 3, wherein: the spring (34) is a disc spring.
5. The mortar mixing machine special for building concrete wall construction according to claim 2, wherein: the discharging nozzle (19) is in a horn mouth shape.
6. The mortar mixing machine special for building concrete wall construction according to claim 1, wherein: the first motor (12) and the second motor (15) are both variable frequency motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011460312.2A CN112427115A (en) | 2020-12-11 | 2020-12-11 | Special mortar mixing machine for building concrete wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011460312.2A CN112427115A (en) | 2020-12-11 | 2020-12-11 | Special mortar mixing machine for building concrete wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112427115A true CN112427115A (en) | 2021-03-02 |
Family
ID=74691577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011460312.2A Withdrawn CN112427115A (en) | 2020-12-11 | 2020-12-11 | Special mortar mixing machine for building concrete wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112427115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273060A (en) * | 2022-03-03 | 2022-04-05 | 龙口市江达汽车配件有限公司 | Molding sand crushing equipment |
-
2020
- 2020-12-11 CN CN202011460312.2A patent/CN112427115A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273060A (en) * | 2022-03-03 | 2022-04-05 | 龙口市江达汽车配件有限公司 | Molding sand crushing equipment |
| CN114273060B (en) * | 2022-03-03 | 2022-06-07 | 龙口市江达汽车配件有限公司 | Molding sand crushing equipment |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20210302 |