Dry-mixed mortar trace additive batching, metering and discharging system

Abstract

The utility model relates to the technical field of dry-mixed mortar batching, in particular to a dry-mixed mortar trace additive batching, metering and discharging system which comprises a machine body which comprises a platform. Through the arrangement of the spiral conveyor, additives in the additive bin can be conveyed, the additives can enter the weighing hopper to be weighed, and the spiral conveyor can carry out continuous variable-frequency batching at multiple stages of speeds from high to low according to the set weighing value and the feed quantity change; the batching precision and the metering precision of the weighing hopper can be improved, after weighing is completed, discharging can be achieved through synchronous opening of the first pneumatic butterfly valve and the feeding connecting pipe, and then the second pneumatic butterfly valve can be opened according to a set discharging sequence according to a feeding signal sent by a dry mixing main machine; therefore, the additive is discharged into the dry-mixing main machine to be stirred and mixed, and the problem of inaccurate additive weighing and batching metering generally existing in a current dry-mixing production line can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-mix mortar batching, in particular to a dry-mix mortar trace additive batching metering and unloading system. Background Art

[0002] Dry-mixed mortar refers to a granular or powdered material that is physically mixed in a certain proportion of dried and sieved aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers). It is transported to the construction site in bags or bulk and can be used directly after adding water and mixing. In the components of dry-mixed mortar products, in addition to cementitious materials and aggregates, a variety of additives need to be added. Additives are important components in premixed mortar products, which can affect the various properties of mortar during mixing and construction as well as after hardening. The dosage of these additives is generally 0.01% to 10% (the percentage of additives in the total amount of mortar), and its metering accuracy needs to reach ±1% to meet national standards. In addition, since additives are expensive and the amount added is small, they have a greater impact on the quality of mortar, so the accuracy of additive metering is extremely high. Calculated based on the input amount of 0.6Kg to 1.5Kg per plate, the metering error needs to be controlled within ±10g. Currently, few dry-mixed mortar production line equipment can meet this accuracy requirement.

[0003] At present, the main ways of adding additives to the dry-mixing main machine of dry-mix mortar production line equipment are manual addition, automatic batching and metering, and adding by mixing into the cementitious material in a certain proportion and then batching and metering with the cementitious material. The manual addition method requires manual weighing before adding. This method requires a dedicated person to weigh the additives, which has low production efficiency, high labor costs, and poor working environment for workers. It does not meet the requirements of environmentally friendly, intelligent, and automated equipment. At the same time, manual weighing and feeding also have the risk of inaccurate weighing, missing feeding, or repeated feeding, and are greatly affected by human factors; compounded additives require the additives to be compounded into the cementitious material in a certain proportion, and then mixed evenly with a special mixer before use, which also increases the cost to a certain extent; the automatic batching and metering method meets the requirements of environmental protection, intelligence, and automation, but due to the small amount of additives, the accuracy requirements for batching and weighing are relatively high. Therefore, in order to solve the above problems, a dry-mix mortar trace additive batching and metering unloading system is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a dry-mix mortar trace additive metering and unloading system to solve the problem that the manual addition method mentioned in the above background technology needs to be added after manual weighing. This method requires a dedicated person to weigh the additives, which has low production efficiency, high labor costs, and a poor working environment for workers. It does not meet the requirements of environmentally friendly, intelligent, and automated equipment. At the same time, manual weighing and feeding also have the risks of inaccurate weighing, missed feeding, or repeated feeding, and are greatly affected by human factors; compound additives need to be compounded into cementitious materials according to a certain proportion, and then mixed evenly with a special mixer before use, which also increases the cost to a certain extent; the automatic batching and metering method meets the requirements of environmental protection, intelligence, and automation, but due to the small amount of additives used, the accuracy requirements for batching and weighing are relatively high.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dry-mix mortar micro-additive batching metering and unloading system, comprising a body, the body comprising a platform, a dry-mixing main machine is arranged below the platform, a cover is fixedly connected to the upper surface of the dry-mixing main machine, an additive bin is arranged on one side of the dry-mixing main machine, a dust collector is installed at the top of the additive bin, and a manual gate valve is arranged at the bottom of the additive bin;

[0006] A discharge mechanism is arranged on the surface of the dry mixing main machine, and the discharge mechanism includes a screw conveyor, and the screw conveyor is arranged at the bottom end of the additive bin, and a discharge pipe is fixedly connected to the lower surface of the screw conveyor, and a pneumatic butterfly valve for batching is fixedly installed on the surface of the discharge pipe, and a weighing bucket is arranged on the top of the dry mixing main machine, and an upper cover is arranged on the upper surface of the weighing bucket, and a feed pipe is fixedly connected to the top of the upper cover, a weighing sensor is installed on the surface of the weighing bucket, and a pneumatic vibrator is installed on the surface of the weighing bucket, and a first flange pipe is arranged at the bottom end of the weighing bucket, and a first pneumatic butterfly valve is installed on the surface of the first flange pipe, and a counterweight is installed on the surface of the first flange pipe.

[0007] Preferably, the unloading mechanism also includes a vibration motor, which is fixedly mounted on the surface of the additive bin, on the surface of the additive bin is fixedly mounted a rotary level meter, the surface of the additive bin is connected to a suspension rod, the surface of the platform is fixedly connected to a connecting rod, the bottom end of the connecting rod is provided with a hanger, the surface of the hanger is fixedly connected to a seat ring, the top end of the upper cover is fixedly connected to a first air return device, the top end of the machine cover is fixedly connected to a second flange pipe, the surface of the second flange pipe is mounted with a second pneumatic butterfly valve, the top end of the second flange pipe is fixedly connected to a first unloading pipe, the surface of the first unloading pipe is mounted with a third pneumatic butterfly valve, the top end of the first unloading pipe is fixedly connected to a second unloading pipe, and the surface of the first unloading pipe is fixedly connected to a second air return device.

[0008] Preferably, the feed pipe and the discharge pipe are connected, and the pneumatic vibrators are symmetrically arranged in two groups on the surface of the weighing bucket.

[0009] Preferably, one end of the suspension rod is connected to the additive bin via a suspension hook, the other end of the suspension rod is connected to a screw conveyor via a suspension hook, and the weighing bucket is arranged on the inner side of the seat ring.

[0010] Preferably, a shock absorbing mechanism is provided on the surface of the connecting rod, and the shock absorbing mechanism includes a spring shock absorber, which is fixedly connected to the bottom end of the connecting rod, and one end of the spring shock absorber away from the connecting rod is fixed to the hanger, the lower surface of the seat ring is fixedly connected to a rubber shock absorber, and one end of the rubber shock absorber away from the seat ring is fixed to the hanger, the surface of the upper cover is fixedly connected to a first soft connection, and the surface of the first flange connecting pipe is fixedly connected to a second soft connection.

[0011] Preferably, the upper cover is connected to the weighing bucket via a first flexible connection, and the first flange connecting pipe is connected to the second discharge connecting pipe via a second flexible connection.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the setting of the screw conveyor, the additives in the additive bin can be transported and the additives can be put into the weighing bucket for weighing. The screw conveyor can adopt a multi-level speed from high to low to continuously variable frequency batching according to the set weighing value and feed amount change, which can improve the batching accuracy and the weighing bucket metering accuracy. When the weighing is completed, the unloading can be realized by the synchronous opening of the first pneumatic butterfly valve and the feed pipe, and then the second pneumatic butterfly valve can be opened according to the set unloading sequence according to the material request signal sent by the dry mixing host, so as to realize the unloading of the additive into the dry mixing host for stirring and mixing, which can solve the problem of inaccurate additive batching measurement commonly existing in the current dry mixing production line, and is conducive to improving productivity and the degree of automation and intelligence of equipment.

[0014] 2. By arranging a spring shock absorber between the connecting rod and the hanger, and a rubber shock absorber between the hanger and the seat ring, the vibration generated by the platform can be alleviated, thereby reducing the impact of the platform vibration on the symmetrical bucket, which is convenient for improving the weighing accuracy of the weighing bucket. By setting the first soft connection and the second soft connection, the vibration generated by the screw conveyor during batching and the vibration of the dry mixing host during operation can be avoided to affect the metering accuracy of the symmetrical bucket. A variety of measures are adopted to reduce the impact of external factors on the symmetrical bucket, which is beneficial to improving the metering accuracy of additive ingredients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional front view of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the front view and cross-section of the structure of the screw conveyor and the weighing bucket of the utility model;

[0017] Figure 3 It is a schematic front view and cross-sectional view of the structure of the local connecting rod and spring shock absorber of the utility model;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1. platform; 11. dry mixing main machine; 12. machine cover; 13. additive bin; 14. dust collector; 15. manual gate valve; 2. vibration motor; 21. paddle-type material level meter; 22. screw conveyor; 23. discharge pipe; 24. pneumatic butterfly valve for batching; 25. suspension rod; 26. connecting rod; 27. hanger; 28. seat ring; 29. ​​weighing bucket; 210. upper cover; 211. feed pipe; 212. first air return device; 21 3. Weighing sensor; 214. Pneumatic vibrator; 215. First flange pipe; 216. First pneumatic butterfly valve; 217. Counterweight; 218. Second flange pipe; 219. Second pneumatic butterfly valve; 220. First unloading pipe; 221. Third pneumatic butterfly valve; 222. Second unloading pipe; 223. Second air return device; 3. Spring shock absorber; 31. Rubber shock absorber; 32. First flexible connection; 33. Second flexible connection. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A dry-mix mortar micro-additive batching metering and unloading system comprises a machine body, the machine body comprises a platform 1, a dry-mixing main machine 11 is arranged below the platform 1, a cover 12 is fixedly connected to the upper surface of the dry-mixing main machine 11, an additive bin 13 is arranged on one side of the dry-mixing main machine 11, a dust collector 14 is installed on the top of the additive bin 13, and a manual gate valve 15 is arranged at the bottom of the additive bin 13. By setting the manual gate valve 15, the manual gate valve 15 is opened before loading the ton bag, so as to avoid dust overflow when unloading the material;

[0023] The surface of the dry mixing main machine 11 is provided with a discharge mechanism, which includes a screw conveyor 22, which is arranged at the bottom end of the additive bin 13, and a discharge pipe 23 is fixedly connected to the lower surface of the screw conveyor 22, and a pneumatic butterfly valve 24 for dispensing ingredients is fixedly installed on the surface of the discharge pipe 23. A weighing bucket 29 is provided at the top of the dry mixing main machine 11, and an upper cover 210 is provided on the upper surface of the weighing bucket 29, and a feed pipe 211 is fixedly connected to the top of the upper cover 210, and a weighing sensor 213 is installed on the surface of the weighing bucket 29. A pneumatic vibrator 214 is installed on the surface, a first flange pipe 215 is arranged at the bottom end of the weighing bucket 29, a first pneumatic butterfly valve 216 is installed on the surface of the first flange pipe 215, and a counterweight block 217 is installed on the surface of the first flange pipe 215. Through the setting of the weighing sensor 213, the additive in the symmetrical bucket 29 can be weighed, and through the setting of the counterweight block 217, it can be used to balance the symmetrical bucket 29, thereby facilitating the measurement of the additive in the symmetrical bucket 29, thereby realizing accurate batching of the dry mixing host 11.

[0024] Furthermore, the unloading mechanism also includes a vibration motor 2, which is fixedly mounted on the surface of the additive bin 13, a rotary level meter 21 is fixedly mounted on the surface of the additive bin 13, a suspension rod 25 is connected to the surface of the additive bin 13, a connecting rod 26 is fixedly connected to the surface of the platform 1, a hanger 27 is provided at the bottom end of the connecting rod 26, a seat ring 28 is fixedly connected to the surface of the hanger 27, a first air return device 212 is fixedly connected to the top of the upper cover 210, a second flange pipe 218 is fixedly connected to the top of the cover 12, and the surface of the second flange pipe 218 is provided with a A second pneumatic butterfly valve 219 is installed, the top of the second flange pipe 218 is fixedly connected to the first discharge pipe 220, the surface of the first discharge pipe 220 is installed with a third pneumatic butterfly valve 221, the top of the first discharge pipe 220 is fixedly connected to the second discharge pipe 222, and the surface of the first discharge pipe 220 is fixedly connected to the second air return device 223. Through the setting of the vibration motor 2, smooth material discharge from the additive bin 13 can be ensured, and through the setting of the rotary level meter 21, an alarm can be given when the ingredients are insufficient, thereby facilitating the replenishment of additives as soon as possible.

[0025] Furthermore, the feed pipe 211 is connected to the discharge pipe 23, and the pneumatic vibrators 214 are symmetrically arranged in two groups on the surface of the weighing bucket 29. The arrangement of the pneumatic vibrators 214 can ensure smooth discharge of materials from the weighing bucket 29.

[0026] Furthermore, one end of the suspension rod 25 is connected to the additive bin 13 through a suspension hook, and the other end of the suspension rod 25 is connected to the screw conveyor 22 through a suspension hook. The weighing bucket 29 is arranged on the inner side of the seat ring 28. Through the arrangement of the suspension rod 25, it is convenient to connect the screw conveyor 22 and the additive bin 13, so that the additive in the additive bin 13 can enter the inner side of the weighing bucket 29 through the screw conveyor 22, and then enter the dry mixing main machine 11 through the weighing bucket 29, thereby facilitating the batching of the dry mixing main machine 11.

[0027] Furthermore, a shock absorbing mechanism is provided on the surface of the connecting rod 26, and the shock absorbing mechanism includes a spring shock absorber 3, which is fixedly connected to the bottom end of the connecting rod 26, and one end of the spring shock absorber 3 away from the connecting rod 26 is fixed to the hanger 27, and the lower surface of the seat ring 28 is fixedly connected to a rubber shock absorber 31, and one end of the rubber shock absorber 31 away from the seat ring 28 is fixed to the hanger 27, the surface of the upper cover 210 is fixedly connected to a first soft connection 32, and the surface of the first flange pipe 215 is fixedly connected to a second soft connection 33. Through the arrangement of the spring shock absorber 3 and the rubber shock absorber 31, the influence of the vibration of the platform 1 on the symmetrical bucket 29 can be reduced, and the weighing accuracy of the weighing bucket 29 can be improved.

[0028] Furthermore, the upper cover 210 is connected to the weighing bucket 29 through a first flexible connection 32, and the first flange pipe 215 is connected to the second discharge pipe 222 through a second flexible connection 33. The setting of the first flexible connection 32 can avoid the vibration generated when the screw conveyor 22 is batching and affecting the metering accuracy of the symmetrical bucket 29. The setting of the second flexible connection 33 can avoid the vibration of the dry mixing host 11 when it is working and affecting the accuracy of the symmetrical bucket 29.

[0029] Working principle: When in use, before batching, first confirm that the manual gate valve 15 is in the open state, the first pneumatic butterfly valve 216, the third pneumatic butterfly valve 221 and the second pneumatic butterfly valve 219 are all in the closed state, then open the batching pneumatic butterfly valve 24 on the discharge pipe 23, and start the screw conveyor 22, so that the screw conveyor 22 adopts a multi-stage speed from high to low to continuously change the frequency of batching according to the set weighing value and the feed amount change, and allows the additive to pass through the discharge pipe 23 and the feed pipe 211 to enter the inner side of the weighing bucket 29 for weighing. After the weighing sensor 213 weighs the additive, the first pneumatic butterfly valve 216 and the third pneumatic butterfly valve 221 are opened synchronously and unloaded, and the second pneumatic butterfly valve 219 is opened according to the material request signal sent by the dry mixing host 11 according to the set unloading sequence, so that the additive can be unloaded into the dry mixing host 11 for stirring and mixing;

[0030] By setting the spring shock absorber 3 and the rubber shock absorber 31, the vibration generated by the platform 1 can be alleviated, thereby reducing the impact of the vibration of the platform 1 on the symmetrical bucket 29, and ensuring the weighing accuracy of the weighing bucket 29. By setting the first soft connection 32, the vibration generated by the screw conveyor 22 during batching can be alleviated. By setting the second soft connection 33, the vibration generated by the dry mixing host 11 during operation can be alleviated, thereby avoiding the vibration generated by the screw conveyor 22 during batching and the vibration generated by the dry mixing host 11 during operation. The symmetrical bucket 29 metering accuracy is affected, thereby improving the metering accuracy of additive ingredients.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A dry-mix mortar micro-additive batching metering and unloading system, comprising a machine body, the machine body comprising a platform (1), a dry-mixing main machine (11) is arranged below the platform (1), a cover (12) is fixedly connected to the upper surface of the dry-mixing main machine (11), an additive bin (13) is arranged on one side of the dry-mixing main machine (11), a dust collector (14) is installed at the top of the additive bin (13), and a manual gate valve (15) is arranged at the bottom of the additive bin (13); It is characterized in that The surface of the dry mixing main machine (11) is provided with a discharge mechanism, the discharge mechanism comprising a screw conveyor (22), the screw conveyor (22) being provided at the bottom end of the additive bin (13), the lower surface of the screw conveyor (22) being fixedly connected with a discharge pipe (23), the surface of the discharge pipe (23) being fixedly mounted with a batching pneumatic butterfly valve (24), the top end of the dry mixing main machine (11) being provided with a weighing bucket (29), the upper surface of the weighing bucket (29) being provided with an upper cover (21 0), a feed pipe (211) is fixedly connected to the top of the upper cover (210), a weighing sensor (213) is installed on the surface of the weighing bucket (29), a pneumatic vibrator (214) is installed on the surface of the weighing bucket (29), a first flange pipe (215) is arranged at the bottom end of the weighing bucket (29), a first pneumatic butterfly valve (216) is installed on the surface of the first flange pipe (215), and a counterweight (217) is installed on the surface of the first flange pipe (215).

2. A dry-mix mortar trace additive batching metering and unloading system according to claim 1, characterized in that: The unloading mechanism further comprises a vibration motor (2), the vibration motor (2) being fixedly mounted on the surface of the additive bin (13), a rotary-type material level meter (21) being fixedly mounted on the surface of the additive bin (13), a suspension rod (25) being connected to the surface of the additive bin (13), a connecting rod (26) being fixedly connected to the surface of the platform (1), a hanger (27) being provided at the bottom end of the connecting rod (26), a seat ring (28) being fixedly connected to the surface of the hanger (27), and a first air return device (212) being fixedly connected to the top end of the upper cover (210). The top end of the machine cover (12) is fixedly connected to a second flange pipe (218), the surface of the second flange pipe (218) is installed with a second pneumatic butterfly valve (219), the top end of the second flange pipe (218) is fixedly connected to a first discharge pipe (220), the surface of the first discharge pipe (220) is installed with a third pneumatic butterfly valve (221), the top end of the first discharge pipe (220) is fixedly connected to a second discharge pipe (222), and the surface of the first discharge pipe (220) is fixedly connected to a second air return device (223).

3. A dry-mix mortar trace additive batching metering and unloading system according to claim 1, characterized in that: The feed pipe (211) is connected to the discharge pipe (23), and the pneumatic vibrators (214) are symmetrically arranged in two groups on the surface of the weighing bucket (29).

4. A dry-mix mortar trace additive batching metering and unloading system according to claim 2, characterized in that: One end of the suspension rod (25) is connected to the additive bin (13) via a suspension hook, and the other end of the suspension rod (25) is connected to the screw conveyor (22) via a suspension hook. The weighing bucket (29) is arranged on the inner side of the seat ring (28).

5. A dry-mix mortar trace additive batching metering and unloading system according to claim 2, characterized in that: A shock absorbing mechanism is provided on the surface of the connecting rod (26), and the shock absorbing mechanism includes a spring shock absorber (3), the spring shock absorber (3) is fixedly connected to the bottom end of the connecting rod (26), and one end of the spring shock absorber (3) away from the connecting rod (26) is fixed to the hanger (27), the lower surface of the seat ring (28) is fixedly connected to a rubber shock absorber (31), and one end of the rubber shock absorber (31) away from the seat ring (28) is fixed to the hanger (27), the surface of the upper cover (210) is fixedly connected to a first soft connection (32), and the surface of the first flange pipe (215) is fixedly connected to a second soft connection (33).

6. A dry-mix mortar trace additive batching metering and unloading system according to claim 5, characterized in that: The upper cover (210) is connected to the weighing bucket (29) via a first flexible connection (32), and the first flange pipe (215) is connected to the second discharge pipe (222) via a second flexible connection (33).

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