Automatic weighing device for dry-mixed mortar

Abstract

The utility model discloses an automatic weighing device for dry-mixed mortar, which comprises a fixed frame, a mortar tank is fixed at the upper end of the fixed frame, and a weighing mechanism is arranged on the fixed frame below the mortar tank; the weighing mechanism comprises a mounting frame movably mounted on the fixed frame, a first weighing sensor connected between the mounting frame and the fixed frame, a weighing tank vertically and movably mounted on the mounting frame, and a lifting mechanism arranged on the mounting frame and used for driving the weighing tank to lift; an opening is formed in the upper end of the weighing tank, and valves are arranged at the lower ends of the weighing tank and the mortar tank; according to the utility model, through the arrangement of the weighing mechanism, the weighing mechanism not only is responsible for weighing, but also has the function of temporarily storing mortar, so that when a container is replaced, the mortar tank can continuously feed materials into the weighing tank and pre-weigh the materials, the continuity of feeding is kept, and the waiting time of subsequent weighing is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mortar weighing, in particular to an automatic weighing device for dry-mixed mortar. Background Art

[0002] In the current field of dry-mixed mortar production and construction, the efficiency and accuracy of the automatic weighing and packaging system are crucial for improving the overall operation efficiency and cost control.

[0003] After retrieval, the Chinese utility model patent with the application number 202122227656.5 discloses an automatic weighing device for dry-mixed mortar. When in use, materials enter the weighing bucket along the discharge pipe. When the weight of the weighing bucket increases, the weighing bucket presses the supporting plate to move downward, and the electronic scale weighs the inside of the weighing bucket. When the supporting plate moves downward to contact the induction sheet, the second motor is started to drive the second threaded rod to rotate. Through the screw connection between the second threaded rod and the threaded cylinder, the threaded cylinder is driven to move leftward, and the baffle is pushed by the threaded cylinder to move to the bottom end of the discharge pipe to block the materials, so as to achieve accurate packaging and weighing of the materials.

[0004] Regarding the above-mentioned prior art, the inventor believes that after the mortar in the weighing bucket reaches the preset weight and the weighing is completed, it is necessary to remove the filled weighing bucket and replace it with a new empty weighing bucket, and then open the discharge pipe again for the next round of feeding. During this process, the discharge pipe is forced to stop feeding during the replacement of the weighing bucket. Whenever the weighing bucket is replaced, it is necessary to wait for the new weighing bucket to be repositioned and fixed, and then the feeding can be restarted, which increases the waiting time.

[0005] Therefore, it is necessary to improve the existing automatic weighing device for dry-mixed mortar to reduce or eliminate the interruption of feeding caused by the replacement of the weighing bucket and improve the overall feeding efficiency. Content of the Utility Model

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an automatic weighing device for dry-mixed mortar to solve the above problems.

[0007] To achieve the above purpose, an automatic weighing device for dry-mixed mortar of the utility model includes a fixed frame, a mortar tank is fixed at the upper end of the fixed frame, and a weighing mechanism is arranged below the mortar tank on the fixed frame;

[0008] Weighing mechanism:

[0009] It includes a mounting frame movably installed on the fixed frame, a first weighing sensor connected between the mounting frame and the fixed frame, a weighing tank vertically movably installed on the mounting frame, and a lifting mechanism arranged on the mounting frame for driving the weighing tank to lift and lower;

[0010] The upper end of the weighing tank is open, and valves are provided at the lower ends of both the weighing tank and the mortar tank.

[0011] Preferably, a dust-proof sleeve is slidably sleeved on the outer side of the upper part of the weighing tank, and the top of the dust-proof sleeve is fixedly connected to the lower discharge port of the mortar tank.

[0012] Preferably, a dredging mechanism for dredging the mortar tank is installed on the weighing tank;

[0013] Dredging mechanism:

[0014] It includes a long rod and a rake rod. The lower end of the long rod is fixed to the inner wall of the weighing tank, and the lower end of the long rod penetrates through the bottom of the mortar tank and is fixed to the rake rod.

[0015] Preferably, a vibrator is installed on the side surface of the lower end of the weighing tank

[0016] Preferably, the valve is a pneumatic butterfly valve.

[0017] Preferably, the lifting mechanism is a telescopic cylinder structure.

[0018] Preferably, a bottom plate is fixed to the lower end of the fixing frame, and a second weighing sensor is installed on the surface of the bottom plate.

[0019] The present utility model has the following advantages compared with the prior art:

[0020] 1. Through the setting of the weighing mechanism, the present utility model not only is responsible for weighing but also has the function of temporarily storing mortar, enabling the mortar tank to continuously discharge materials into the weighing tank for pre-weighing when replacing the container, maintaining the continuity of material discharge, and reducing the waiting time for subsequent weighing.

[0021] 2. When the container is placed under the weighing mechanism, the lifting mechanism drives the weighing tank to descend into the container, and then discharges the mortar into the container during the slow lifting process, effectively reducing the impact force during material discharge and suppressing the diffusion of dust.

[0022] 3. The present utility model is equipped with a dust-proof sleeve on the top of the weighing tank, and the dust-proof sleeve is tightly connected to the discharge port of the mortar tank to form a closed system, effectively preventing dust from leaking out and improving the cleanliness of the working environment.

[0023] 4. When discharging materials, the present utility model drives the long rod and the rake rod to stir in the mortar tank by the up and down movement of the weighing tank, effectively preventing the mortar from caking in the mortar tank and ensuring the smoothness of material discharge. At the same time, the vibrator at the lower end of the weighing tank further promotes the flow of the mortar and avoids blockage problems.

[0024] 5. The utility model is provided with a second weighing sensor below the fixing frame to real-time monitor the weight of the mortar in the container, forming a double guarantee with the first weighing sensor. When the amount of mortar in the weighing tank is insufficient, the system automatically starts the supplementary feeding mode and automatically stops after ensuring that the amount of mortar in the container reaches the preset value, improving the weighing accuracy and efficiency. Brief Description of the Drawings

[0025] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0026] Figure 1 is a schematic three-dimensional structure diagram of the utility model.

[0027] Figure 2 is a schematic cross-sectional structure diagram of the utility model.

[0028] Figure 3 is a schematic structure diagram of the weighing mechanism of the utility model

[0029] In the figure: 10, fixing frame; 11, bottom plate, 12, second weighing sensor; 20, mortar tank; 30, weighing mechanism; 31, mounting frame; 32, first weighing sensor; 33, weighing tank; 34, lifting mechanism; 35, dust-proof sleeve; 40, valve; 50, dredging mechanism; 51, long rod; 52, rake rod; 60, vibrator; 70, PLC controller. Detailed Embodiment

[0030] The following further describes in detail the specific embodiments of the utility model in combination with the attached Figures 1-3 drawings.

[0031] As Figures 1-3As shown in the figure, an automatic weighing device for dry-mixed mortar of the present utility model includes a fixing frame 10. A mortar tank 20 is fixed at the upper end of the fixing frame 10, and a weighing mechanism 30 is provided below the mortar tank 20 on the fixing frame 10. The mortar tank 20 is used to store dry-mixed mortar, and the weighing mechanism 30 is used to weigh the feeding amount of dry-mixed mortar. Moreover, the weighing mechanism 30 can temporarily store the weighed mortar. During use, a container 80 for containing dry-mixed mortar is placed below the weighing mechanism 30, and the weighed dry-mixed mortar is discharged into the container 80 through the weighing mechanism 30. During the process of replacing the container 80, the mortar tank 20 can continue to feed materials into the weighing mechanism 30, thereby ensuring the continuity of the feeding of the mortar tank 20. And, the dry-mixed mortar fed into the weighing mechanism 30 can be weighed in advance. In this way, when the container 80 is replaced, the weighed dry-mixed mortar in the weighing mechanism 30 can be discharged into the container 80, which can reduce the waiting time required for feeding. Of course, it can be understood that if the replacement speed of the container 80 is fast enough and the dry-mixed mortar in the weighing mechanism 30 is not enough to fill the container, then after discharging the dry-mixed mortar in the weighing mechanism 30 into the container 80, dry-mixed mortar can be continuously added to the container 80.

[0032] In this embodiment, the weighing mechanism 30 includes a mounting frame 31 movably installed on the fixing frame 10, a first weighing sensor 32 connected between the mounting frame 31 and the fixing frame 10, a weighing tank 33 vertically movably installed on the mounting frame 31, and a lifting mechanism 34 provided on the mounting frame 31 for driving the weighing tank 33 to lift. The first weighing sensor 32 is used to monitor the weight of the weighing tank 33. When a new container 80 is placed at the bottom of the weighing mechanism 30, if the dry-mixed mortar in the weighing tank 33 is directly added to the container 80, the impact force on the container 80 may be very large, and in addition, relatively serious dust diffusion will be caused. Through the setting of the lifting mechanism 34, the weighing tank 33 can first be lowered to the lower end inside the container 80, and then the height of the weighing tank 33 can be slowly increased while discharging the dry-mixed mortar into the container 80, thereby effectively reducing the impact force generated when the dry-mixed mortar is discharged into the container 80 and suppressing dust diffusion.

[0033] Specifically, the upper end of the weighing tank 33 is open, and valves 40 are provided at both the lower end of the weighing tank 33 and the lower end of the mortar tank 20. The valves 40 are pneumatic butterfly valves. The pneumatic butterfly valves are connected to a PLC controller 70, and the PLC controller 70 is connected to the first weighing sensor 32. Through the PLC controller 70, the weight of dry-mixed mortar that the container 80 needs to load can be set and weighed through the weighing tank 33.

[0034] Further, a dust-proof sleeve 35 is slidably sleeved on the outer side of the upper part of the weighing tank 33. The top of the dust-proof sleeve 35 is fixedly connected to the lower discharge port of the mortar tank 20. Through the arrangement of the dust-proof sleeve 35, the upper part of the weighing tank 33 is always in a relatively sealed state to prevent dust diffusion.

[0035] To facilitate the feeding of the mortar tank 20, a dredging mechanism 50 for dredging the mortar tank 20 is installed on the weighing tank 33.

[0036] The following is a specific embodiment of the dredging mechanism 50:

[0037] The dredging mechanism 50 includes a long rod 51 and a rake rod 52. The lower end of the long rod 51 is fixed to the inner wall of the weighing tank 33. The lower end of the long rod 51 penetrates through the bottom of the mortar tank 20 and is fixed to the rake rod 52. Through the arrangement of the dredging mechanism 50, when the weighing tank 33 moves up and down, the rake rod 52 can be driven by the long rod 51 to move in the mortar tank 20, thereby stirring the dry-mixed mortar in the mortar tank 20 and preventing difficult feeding caused by caking.

[0038] Further, to prevent difficult feeding of the weighing tank 33, a vibrator 60 is installed on the side of the lower end of the weighing tank 33.

[0039] In some embodiments, the lifting mechanism 34 is a telescopic cylinder structure.

[0040] In some embodiments, a bottom plate 11 is fixed to the lower end of the fixed frame 10. A second weighing sensor 12 is installed on the surface of the bottom plate 11. The container 80 can be placed on the second weighing sensor 12. In this way, when the amount of dry-mixed mortar in the weighing tank 33 is not sufficient, the dry-mixed mortar in the weighing tank 33 can be first discharged into the container 80, and then by opening the valves 40 of the mortar tank 20 and the weighing tank 33, the insufficient dry-mixed mortar can be added. When the sufficient amount is added, the second weighing sensor 12 will send the data to the PLC controller 70, so that the valve 40 of the weighing tank 33 is closed, and the mortar tank 20 can continue to feed the weighing tank 33 to prepare for the next feeding. It can be understood that when the dry-mixed mortar in the weighing tank 33 reaches a certain value, that is, when it is full, the valve 40 of the mortar tank 20 is automatically closed by the PLC controller 70.

[0041] During use, place the container 80 below the weighing mechanism 30. The lifting mechanism 34 drives the weighing tank 33 filled with dry-mixed mortar to descend into the container 80. During the discharging process, the weighing tank 33 is slowly lifted by the lifting mechanism 34 to smoothly discharge the mortar into the container 80, reducing impact and dust diffusion. Additionally, a dust-proof sleeve 35 is provided at the top of the weighing tank 33 to keep the weighing process sealed and prevent dust from leaking. Moreover, the weighing tank 33 is also equipped with a dredging mechanism 50 and a vibrator 60, which respectively stir the mortar in the mortar tank 20 to prevent caking by driving the long rod 51 and the rake rod 52 when the weighing tank 33 moves, and promote smooth discharging by using the vibrator 60 to vibrate the weighing tank 33. During the loading process, if the amount of mortar in the weighing tank 33 is not enough to fill the container 80, the mortar can continue to be discharged from the mortar tank 20 into the weighing tank 33, and the weight of the mortar in the container 80 is monitored by the second weighing sensor 12. When the set value is reached, the valve 40 of the weighing tank 33 is automatically closed, and the mortar tank 20 continues to discharge mortar into the weighing tank 33 to prepare for the next use. The entire process is automatically controlled by the PLC controller 70 to ensure accurate, continuous, and efficient discharging.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic weighing device for dry-mixed mortar, characterized in that, It includes a fixing frame (10), a mortar tank (20) is fixed at the upper end of the fixing frame (10), and a weighing mechanism (30) is provided below the mortar tank (20) on the fixing frame (10); Weighing mechanism (30): It includes a mounting frame (31) movably installed on the fixing frame (10), a first weighing sensor (32) connected between the mounting frame (31) and the fixing frame (10), a weighing tank (33) vertically movably installed on the mounting frame (31), and a lifting mechanism (34) provided on the mounting frame (31) for driving the weighing tank (33) to lift and lower; The upper end of the weighing tank (33) is open, and valves (40) are provided at the lower ends of both the weighing tank (33) and the mortar tank (20).

2. The automatic weighing device for dry-mixed mortar according to claim 1, characterized in that, A dust-proof sleeve (35) is slidably sleeved on the outer side of the upper part of the weighing tank (33), and the top of the dust-proof sleeve (35) is fixedly connected to the lower discharge port of the mortar tank (20).

3. The automatic weighing device for dry-mixed mortar according to claim 2, characterized in that, The weighing tank (33) is equipped with a dredging mechanism (50) for dredging the mortar tank (20); Dredging mechanism (50): It includes a long rod (51) and a rake rod (52), the lower end of the long rod (51) is fixed to the inner wall of the weighing tank (33), and the lower end of the long rod (51) penetrates through the bottom of the mortar tank (20) and is fixed to the rake rod (52).

4. An automatic weighing device for dry-mixed mortar according to claim 3, characterized in that, An exciter (60) is installed on the side of the lower end of the weighing tank (33).

5. The automatic weighing device for dry-mixed mortar according to claim 1, characterized in that, The valve (40) is a pneumatic butterfly valve.

6. The automatic weighing device for dry-mixed mortar according to claim 1, characterized in that, The lifting mechanism (34) is a telescopic cylinder structure.

7. An automatic weighing device for dry-mixed mortar according to claim 1, characterized in that, The lower end of the fixing frame (10) is fixed with a bottom plate (11), and a second weighing sensor (12) is installed on the surface of the bottom plate (11).

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