CN221212220U - Feeding device for concrete mixer - Google Patents

Abstract

The utility model provides a feed arrangement for concrete mixer, includes equipment base, agitating unit, cement feed arrangement, grit feed arrangement, water inlet arrangement, display screen and controller, agitating unit includes agitator, stirring element and first rotating electrical machines, be equipped with first feed inlet, second feed inlet, water inlet and discharge gate on the agitator, cement feed arrangement includes first feeding storehouse, first transmission path, first weighing plate, first weighing sensor, first feed inlet and first electronic stop valve, grit feed arrangement includes second feeding storehouse, second transmission path, second weighing plate, second weighing sensor, second feed inlet and second electronic stop valve, water inlet arrangement includes water spray element, inlet tube, water flow sensor, force (forcing) pump and water storage bucket, the force (forcing) pump is arranged in the water storage bucket.

Description

A feeding device for a concrete mixer

Technical Field

The utility model relates to the technical field of concrete mixing equipment, in particular to a feeding device for a concrete mixer.

Background technique

Concrete generally refers to cement concrete obtained by mixing cement as a cementitious material and sand and gravel as aggregates with water in a certain proportion and stirring. In the prior art, there are usually two ways to mix concrete: the first is that the worker directly places cement and sand and gravel on the ground, then adds water to the mixture, and then stirs it manually with a handheld shovel. This mixing method is inefficient, and the amount of concrete mixed each time is small, which cannot meet the use requirements of large construction sites; the second is to add cement, sand and gravel and water into a concrete mixing tank, and then drive the stirring element in the concrete mixing tank to rotate through a rotating motor, so that the concrete is mixed evenly. However, both mixing methods have the following defects: the amount of cement, sand and gravel and water added depends entirely on the personal experience of the worker, and then during the mixing process, a second addition is made according to the consistency of the mixed concrete until the mixed concrete basically meets the use requirements, which will lead to the following problems: first, the amount of concrete mixed in the end may be too much, and the concrete that cannot be used in time will be unusable after drying; second, the quality of the mixed concrete is poor; third, the mixing efficiency of the concrete will be reduced due to the need to continuously add cement, sand and gravel and water for a second time.

Summary of the invention

In order to solve the above problems, the utility model provides a feeding device for a concrete mixer which can improve the mixing efficiency and the quality of concrete.

The technical solution of the utility model: a feeding device for a concrete mixer, comprising an equipment base, a stirring device connected to the equipment base, a cement feeding device connected to the equipment base, a sand and gravel feeding device connected to the equipment base, a water inlet device connected to the equipment base, a display screen and a controller, the stirring device comprising a stirring barrel connected to the equipment base, a stirring element connected to the stirring barrel and a first rotating motor for driving the stirring element to rotate, the stirring barrel is provided with a first feeding port, a second feeding port, a water inlet and a discharging port, the discharging port is located at the bottom of the stirring barrel, the cement feeding device comprises a first feeding bin connected to the equipment base, a first transmission channel connected to the first feeding bin, a first weighing plate connected to the first transmission channel, a first weighing sensor connected to the bottom of the first weighing plate, a first feeding port arranged on the first weighing plate and a first electric stop valve connected to the first feeding port, the two ends of the first transmission channel are respectively connected to the first feeding bin and the first feeding port, the sand and gravel ... transmission channel connected to the first feeding port, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding port, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, a first transmission channel connected to the first feeding bin, A second feed bin of the base, a second transmission channel connected to the second feed bin, a second weighing plate connected to the second transmission channel, a second weighing sensor connected to the bottom of the second weighing plate, a second feeding port arranged on the second weighing plate and a second electric stop valve connected to the second feeding port, the two ends of the second transmission channel are respectively connected to the second feed bin and the second feed port, the cross-sectional shapes of the first weighing plate and the second weighing plate are respectively adapted to the cross-sectional shapes and sizes of the inner walls of the first transmission channel and the second transmission channel, the central axes of the first transmission channel and the second transmission channel are both in a vertical state, the water inlet device includes a water spraying element connected to the water inlet, a water inlet pipe connected to the water spraying element, a water flow sensor connected to the water inlet pipe, a booster pump connected to the water inlet pipe and a water storage barrel connected to the base of the equipment, the booster pump is placed in the water storage barrel, the first rotating motor, the first weighing sensor, the second weighing sensor, the water flow sensor, the first electric stop valve, the second electric stop valve, the display screen and the booster pump are respectively electrically connected to the controller.

According to the above technical solution, first, the staff inputs the mixing ratio of cement, sand and gravel, and water into the controller, and then pours cement into the first feed bin and observes the value displayed on the display screen at the same time. As the staff continues to pour cement, the first weighing sensor continuously sends an electrical signal to the controller, and the controller displays the weight sensed by the first weighing sensor on the display screen. When the staff observes that the amount of cement added reaches the threshold, the staff stops adding cement, and then pours sand and gravel into the second feed bin. The second weighing sensor continuously sends an electrical signal to the controller, and the controller displays the weight sensed by the second weighing sensor on the display screen. When the staff observes that the amount of sand and gravel added reaches the threshold, the staff stops adding sand and gravel, and then the staff controls the first electric stop valve and the second electric stop valve to be in the open state through the controller respectively. The cement and sand and gravel enter the mixing barrel through the first transmission channel and the second transmission channel respectively, and then the controller controls the pressure pump to start, so that the water in the water storage barrel is pressed into the water spray element through the water inlet pipe, and then the water flows into the mixing barrel. At the same time, the water flow sensor will record the amount of water flowing into the mixing barrel in real time. When the inflowing water reaches the threshold, the water flow sensor sends an electrical signal to the controller, and the controller controls the pressure pump to stop working. Then, the controller controls the first rotating motor to drive the stirring element to rotate. After the mixture of cement, sand and gravel and water is evenly stirred, the staff opens the discharge port to discharge the concrete. Compared with the traditional concrete mixing device, this ensures that the ratio of added water, cement, and sand and gravel meets the requirements, greatly improving the quality of the stirred concrete. At the same time, there is no need to add materials multiple times, which greatly improves the mixing efficiency.

Further configuration of the utility model: a first alarm and a second alarm are provided on the base of the equipment, and the first alarm and the second alarm are electrically connected to the controller respectively; when the amount of cement placed on the first weighing plate reaches a threshold value, the first weighing sensor sends an electrical signal to the controller, and the controller controls the first alarm to sound an alarm; when the amount of sand and gravel placed on the second weighing plate reaches a threshold value, the second weighing sensor sends an electrical signal to the controller, and the controller controls the second alarm to sound an alarm.

By adopting the above technical scheme, when the staff adds cement and sand and gravel to the first feeding bin and the second feeding bin respectively, as the amount of cement and sand and gravel added continues to increase, when the amount of cement placed on the first weighing plate and the amount of sand and gravel placed on the second weighing plate reach the threshold value, the first weighing sensor and the second weighing sensor respectively send electrical signals to the controller, and the controller controls the first alarm and the second alarm to sound an alarm, so that the staff can stop adding materials in time, thereby improving the accuracy of the feed amount and thus improving the quality of the mixed concrete.

Further configuration of the utility model: a first sliding groove is provided at the connection between the first transmission channel and the first feed bin, a second sliding groove is provided at the connection between the second transmission channel and the second feed bin, the first sliding groove is provided with a first sealing plate slidably connected to the first sliding groove and a first hydraulic cylinder for driving the first sealing plate to move horizontally, the second sliding groove is provided with a second sealing plate slidably connected to the second sliding groove and a second hydraulic cylinder for driving the second sealing plate to move horizontally, the first sealing plate and the second sealing plate are respectively adapted to the shape and size of the first sliding groove and the second sliding groove, the cross-sectional shape and size of the first sealing plate and the second sealing plate are respectively adapted to the cross-sectional shape and size of the inner wall of the first transmission channel and the inner wall of the second transmission channel, and the controller is electrically connected to the first hydraulic cylinder and the second hydraulic cylinder respectively.

By adopting the above technical solution, when the first sealing plate and the second sealing plate are both in the initial state, the first sealing plate and the second sealing plate completely occupy the inner walls of the first transmission channel and the second transmission channel, so that cement cannot enter the first transmission channel from the first feeding bin, and sand and gravel cannot enter the second transmission channel from the second feeding bin. The staff directly adds a large amount of cement to the first feeding bin and a large amount of sand and gravel to the second feeding bin, and then controls the first hydraulic cylinder and the second hydraulic cylinder through the controller to respectively drive the first sealing plate and the second sealing plate to move horizontally along the first sliding groove and the second sliding groove, thereby connecting the first feeding bin with the first transmission channel, and the second feeding bin with the second The transmission channel is connected. When the amount of cement and sand and gravel placed on the first weighing plate and the second weighing plate reaches a threshold, the first weighing sensor and the second weighing sensor respectively send electrical signals to the controller. The controller controls the first hydraulic cylinder and the second hydraulic cylinder to respectively drive the first sealing plate and the second sealing plate to reset, so that the first feeding bin and the second feeding bin are respectively disconnected from the first transmission channel and the second transmission channel, and then the controller controls the first electric stop valve and the second electric stop valve to be in an open state, so that cement and sand and gravel enter the mixing barrel, and then mixing is carried out. Compared with the traditional mixing device, this further improves the degree of automation of the feeding work and improves the accuracy of the feeding amount.

Further configuration of the utility model: the outer surfaces of the first sealing plate and the second sealing plate are both provided with sealing gaskets, the shapes of the inner walls of the sealing gaskets are respectively adapted to the shapes and sizes of the outer surfaces of the first sealing plate and the second sealing plate, and the shapes of the outer surfaces of the sealing gaskets are respectively adapted to the shapes and sizes of the inner walls of the first sliding groove and the second sliding groove.

By adopting the above technical solution, since sealing gaskets are provided on the outer surfaces of the first sealing plate and the second sealing plate, when the first sealing plate and the second sealing plate are in the initial state, the connection between the first sealing plate and the first transmission channel and the connection between the second sealing plate and the second transmission channel are both in a sealed state, and cement and sand and gravel cannot enter the first transmission channel and the second transmission channel from the first feed bin and the second feed bin, thereby further improving the accuracy of the feed amount of cement and sand and gravel, and then improving the quality of the mixed concrete.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a cross-sectional view of a feeding device for a concrete mixer according to a specific embodiment of the utility model.

FIG2 is a schematic structural diagram of a first sealing plate in a feeding device for a concrete mixer according to a specific embodiment of the utility model.

1- Equipment base, 2- Mixing device, 3- Cement feeding device, 4- Sand and gravel feeding device, 5- Water inlet device, 6- Display screen, 7- Controller, 8- Mixing barrel, 9- Mixing element, 10- First rotating motor, 11- First feeding port, 12- Second feeding port, 13- Water inlet, 14- Discharging port, 15- First feeding bin, 16- First transmission channel, 17- First weighing plate, 18- First weighing sensor, 19- First feeding port, 20- First electric stop valve, 21- Second feeding bin , 22-second transmission channel, 23-second weighing plate, 24-second weighing sensor, 25-second feeding port, 26-second electric stop valve, 27-water spray element, 28-water inlet pipe, 29-water flow sensor, 30-pressure pump, 31-water storage barrel, 32-first alarm, 33-second alarm, 34-first sliding groove, 35-second sliding groove, 36-first sealing plate, 37-first hydraulic cylinder, 38-second sealing plate, 39-second hydraulic cylinder, 40-sealing gasket.

Detailed ways

As shown in Fig. 1-2, a feeding device for a concrete mixer comprises an equipment base 1, a stirring device 2 connected to the equipment base 1, a cement feeding device 3 connected to the equipment base 1, a sand and gravel feeding device 4 connected to the equipment base 1, a water inlet device 5 connected to the equipment base 1, a display screen 6 and a controller 7, wherein the stirring device 2 comprises a stirring barrel 8 connected to the equipment base 1, a stirring element 9 connected to the stirring barrel 8 and a first rotating motor 10 for driving the stirring element 9 to rotate, and the stirring barrel 8 is provided with a first feeding port 11, a second feeding port 12, a water inlet 13 and a discharging port 14, and the discharging port 15 ... The material port 14 is located at the bottom of the mixing barrel 8, the cement feeding device 3 includes a first feeding bin 15 connected to the equipment base 1, a first transmission channel 16 connected to the first feeding bin 15, a first weighing plate 17 connected to the first transmission channel 16, a first weighing sensor 18 connected to the bottom of the first weighing plate 17, a first material port 19 arranged on the first weighing plate 17 and a first electric stop valve 20 connected to the first material port 19, the two ends of the first transmission channel 16 are respectively connected to the first feeding bin 15 and the first feeding port 11, the sand and gravel feeding device 4 includes a second feeding bin 21 connected to the equipment base 1 , a second transmission channel 22 connected to the second feed bin 21, a second weighing plate 23 connected to the second transmission channel 22, a second weighing sensor 24 connected to the bottom of the second weighing plate 23, a second feeding port 25 arranged on the second weighing plate 23 and a second electric stop valve 26 connected to the second feeding port 25, the two ends of the second transmission channel 22 are respectively connected to the second feed bin 21 and the second feed port 12, the cross-sectional shapes of the first weighing plate 17 and the second weighing plate 23 are respectively adapted to the cross-sectional shapes and sizes of the inner walls of the first transmission channel 16 and the second transmission channel 22, the first transmission channel 16 and The central axis of the second transmission channel 22 is in a vertical state. The water inlet device 5 includes a water spray element 27 connected to the water inlet 13, a water inlet pipe 28 connected to the water spray element 27, a water flow sensor 29 connected to the water inlet pipe 28, a booster pump 30 connected to the water inlet pipe 28 and a water storage barrel 31 connected to the equipment base 1, the booster pump 30 is placed in the water storage barrel 31, the first rotating motor 10, the first weighing sensor 18, the second weighing sensor 24, the water flow sensor 29, the first electric stop valve 20, the second electric stop valve 26, the display screen 6 and the booster pump 30 are electrically connected to the controller 7 respectively.

First, the staff inputs the mixing ratio of cement, sand and gravel, and water into the controller 7, and then the staff pours cement into the first feed bin 15, and observes the value displayed on the display screen 6 at the same time. As the staff continues to pour cement, the first weighing sensor 18 continuously sends an electrical signal to the controller 7, and the controller 7 displays the weight sensed by the first weighing sensor 18 through the display screen 6. When the staff observes that the amount of cement added reaches a threshold, the staff stops adding cement, and then pours sand and gravel into the second feed bin 21. The second weighing sensor 24 continuously sends an electrical signal to the controller 7, and the controller 7 displays the weight sensed by the second weighing sensor 24 through the display screen 6. When the staff observes that the amount of sand and gravel added reaches a threshold, the staff stops adding sand and gravel, and then the staff controls the first electric stop valve 20 and the second electric stop valve 26 through the controller 7 to be in an open state, so that cement and sand and gravel are separated. The water enters the mixing barrel 8 through the first transmission channel 16 and the second transmission channel 22 respectively, and then the pressure pump 30 is turned on by the controller 7, so that the water in the water storage barrel 31 is pressed into the water spraying element 27 through the water inlet pipe 28, and then the water flows into the mixing barrel 8. At the same time, the water flow sensor 29 will record the amount of water flowing into the mixing barrel 8 in real time. When the inflowing water reaches the threshold, the water flow sensor 29 sends an electrical signal to the controller 7, and the controller 7 controls the pressure pump 30 to stop working. Then, the controller 7 controls the first rotating motor 10 to drive the stirring element 9 to rotate. After the mixture of cement, sand and water is evenly stirred, the staff opens the discharge port 14 to discharge the concrete. Compared with the traditional concrete mixing device 2, this ensures that the ratio of added water, cement and sand meets the requirements, greatly improves the quality of the stirred concrete, and at the same time, does not require multiple additions, which greatly improves the mixing efficiency.

The equipment base 1 is provided with a first alarm 32 and a second alarm 33, and the first alarm 32 and the second alarm 33 are respectively electrically connected to the controller 7. When the amount of cement placed on the first weighing plate 17 reaches a threshold value, the first weighing sensor 18 sends an electrical signal to the controller 7, and the controller 7 controls the first alarm 32 to issue an alarm. When the amount of sand and gravel placed on the second weighing plate 23 reaches a threshold value, the second weighing sensor 24 sends an electrical signal to the controller 7, and the controller 7 controls the second alarm 33 to issue an alarm.

When the staff adds cement and sand and gravel to the first feeding bin 15 and the second feeding bin 21 respectively, as the amount of cement and sand and gravel added increases, when the amount of cement placed on the first weighing plate 17 and the amount of sand and gravel placed on the second weighing plate 23 reach the threshold value, the first weighing sensor 18 and the second weighing sensor 24 respectively send electrical signals to the controller 7, and the controller 7 controls the first alarm 32 and the second alarm 33 to sound an alarm, so that the staff can stop adding materials in time, thereby improving the accuracy of the feed amount and thus improving the quality of the mixed concrete. A first sliding groove 34 is provided at the connection between the first transmission channel 16 and the first feed bin 15, and a second sliding groove 35 is provided at the connection between the second transmission channel 22 and the second feed bin 21. The first sliding groove 34 is provided with a first sealing plate 36 slidably connected to the first sliding groove 34 and a first hydraulic cylinder 37 for driving the first sealing plate 36 to move in the horizontal direction. The second sliding groove 35 is provided with a second sealing plate 38 slidably connected to the second sliding groove 35 and a second hydraulic cylinder 39 for driving the second sealing plate 38 to move in the horizontal direction. The first sealing plate 36 and the second sealing plate 38 are respectively adapted to the shape and size of the first sliding groove 34 and the second sliding groove 35, and the cross-sectional shape and size of the first sealing plate 36 and the second sealing plate 38 are respectively adapted to the cross-sectional shape and size of the inner wall of the first transmission channel 16 and the inner wall of the second transmission channel 22, and the controller 7 is electrically connected to the first hydraulic cylinder 37 and the second hydraulic cylinder 39, respectively.

When the first sealing plate 36 and the second sealing plate 38 are both in the initial state, the first sealing plate 36 and the second sealing plate 38 completely occupy the inner wall of the first transmission channel 16 and the second transmission channel 22, so that cement cannot enter the first transmission channel 16 from the first feeding bin 15, and sand and gravel cannot enter the second transmission channel 22 from the second feeding bin 21. The staff directly adds a large amount of cement to the first feeding bin 15 and a large amount of sand and gravel to the second feeding bin 21, and then controls the first hydraulic cylinder 37 and the second hydraulic cylinder 39 through the controller 7 to drive the first sealing plate 36 and the second sealing plate 38 to move horizontally along the first sliding groove 34 and the second sliding groove 35 respectively, so that the first feeding bin 15 is connected to the first transmission channel 16, and the second feeding bin 21 is connected to the second feeding bin 21. The transmission channel 22 is connected. When the amount of cement and sand and gravel placed on the first weighing plate 17 and the second weighing plate 23 reaches a threshold value, the first weighing sensor 18 and the second weighing sensor 24 respectively send electrical signals to the controller 7. The controller 7 controls the first hydraulic cylinder 37 and the second hydraulic cylinder 39 to respectively drive the first sealing plate 36 and the second sealing plate 38 to reset, so that the first feeding bin 15 and the second feeding bin 21 are respectively disconnected from the first transmission channel 16 and the second transmission channel 22, and then the controller 7 controls the first electric stop valve 20 and the second electric stop valve 26 to be in an open state, so that cement and sand and gravel enter the mixing barrel 8, and then the mixing work is carried out. Compared with the traditional mixing device 2, this further improves the degree of automation of the feeding work and improves the accuracy of the feeding amount. The outer surfaces of the first sealing plate 36 and the second sealing plate 38 are both provided with sealing gaskets 40, and the shapes of the inner walls of the sealing gaskets 40 are respectively adapted to the shapes and sizes of the outer surfaces of the first sealing plate 36 and the second sealing plate 38, and the shapes of the outer surfaces of the sealing gaskets 40 are respectively adapted to the shapes and sizes of the inner walls of the first sliding groove 34 and the second sliding groove 35.

Since sealing gaskets 40 are provided on the outer surfaces of the first sealing plate 36 and the second sealing plate 38, when the first sealing plate 36 and the second sealing plate 38 are in the initial state, the connection between the first sealing plate 36 and the first transmission channel 16 and the connection between the second sealing plate 38 and the second transmission channel 22 are both in a sealed state, and cement and sand and gravel cannot enter the first transmission channel 16 and the second transmission channel 22 from the first feed bin 15 and the second feed bin 21, thereby further improving the accuracy of the feed amount of cement and sand and gravel, and then improving the quality of the mixed concrete.

Claims (4)

1. A feed arrangement for a concrete mixer, characterized in that: comprises a device base, a stirring device connected with the device base, a cement feeding device connected with the device base, a sand feeding device connected with the device base, a water feeding device connected with the device base, a display screen and a controller, wherein the stirring device comprises a stirring barrel connected with the device base, a stirring element connected with the stirring barrel and a first rotating motor for driving the stirring element to rotate, the stirring barrel is provided with a first feeding port, a second feeding port, a water inlet and a discharging port, the discharging port is positioned at the bottom of the stirring barrel, the cement feeding device comprises a first feeding bin connected with the device base, a first transmission channel connected with the first feeding bin, a first weighing plate connected with the first transmission channel, a first weighing sensor connected with the bottom of the first weighing plate, a first material passing port arranged on the first weighing plate and a first electric stop valve connected with the first material passing port, the sand and stone feeding device comprises a second feeding bin connected to a device base, a second conveying channel connected to the second feeding bin, a second weighing plate connected to the second conveying channel, a second weighing sensor connected to the bottom of the second weighing plate, a second passing port arranged on the second weighing plate and a second electric stop valve connected to the second passing port, wherein two ends of the second conveying channel are respectively communicated with the second feeding bin and the second feeding port, the cross section shapes of the first weighing plate and the second weighing plate are respectively matched with the cross section shapes of the inner walls of the first conveying channel and the second conveying channel, the central shafts of the first conveying channel and the second conveying channel are in a vertical state, and the water feeding device comprises a water spraying element connected to a water inlet, the water storage device comprises a water inlet pipe connected to a water spraying element, a water flow sensor connected to the water inlet pipe, a pressure pump connected to the water inlet pipe and a water storage barrel connected to a device base, wherein the pressure pump is arranged in the water storage barrel, and the first rotating motor, the first weighing sensor, the second weighing sensor, the water flow sensor, the first electric stop valve, the second electric stop valve, the display screen and the pressure pump are respectively and electrically connected with a controller.

2. A feeder for a concrete mixer as claimed in claim 1, wherein: the equipment base is provided with a first alarm and a second alarm, the first alarm and the second alarm are respectively and electrically connected with the controller, when the cement amount placed on the first weighing plate reaches a threshold value, the first weighing sensor sends out an electric signal to the controller, the controller controls the first alarm to send out an alarm, when the sand amount placed on the second weighing plate reaches the threshold value, the second weighing sensor sends out an electric signal to the controller, and the controller controls the second alarm to send out an alarm.

3. A feeder for a concrete mixer as claimed in claim 1, wherein: the utility model discloses a feeding device, including first transmission channel, second transmission channel, first feeding bin, second transmission channel, first sealing plate, second sealing plate, controller, first sealing plate, second sealing plate, first sliding groove is equipped with first sliding groove in junction of first transmission channel and first feeding bin, second sliding groove is equipped with the second sliding groove in junction of second transmission channel and first sliding groove is equipped with the second sliding groove, second sliding groove is equipped with the second sealing plate in second sliding groove and is used for driving the second sealing plate to carry out the second hydraulic cylinder of horizontal direction motion, first sealing plate and second sealing plate respectively with the shape size looks adaptation of first sliding groove and second sliding groove, the cross section shape size looks adaptation of first sealing plate and second sealing plate with the cross section shape size of first transmission channel inner wall and second transmission channel inner wall respectively, the controller is connected with first hydraulic cylinder and second hydraulic cylinder electricity respectively.

4. A feeder for a concrete mixer according to claim 3, wherein: the outer surfaces of the first sealing plate and the second sealing plate are respectively provided with a sealing gasket, the shape of the inner wall of the sealing gasket is respectively matched with the shape and the size of the outer surfaces of the first sealing plate and the second sealing plate, and the shape of the outer surface of the sealing gasket is respectively matched with the shape and the size of the inner wall of the first sliding groove and the second sliding groove.