Automatic unpacking and metering device for cement

Abstract

The invention relates to an automatic unpacking and metering device for cement. The first material box is erected on the second material box, and the first material box is communicated with the second material box; a cement bag placing area is arranged at the top of the first material box; the second material box is erected on the frame body, and the second material box communicates with the metering mechanism and is used for conveying cement; the cement bag cutting mechanism is arranged on the first material box, and the cement bag cutting mechanism can cut off the cement bag placed in the cement bag placing area; and the metering mechanism is in butt joint with the discharging opening of the second material box, and the metering mechanism can meter the received cement conveyed by the second material box. According to the automatic cement unpacking and metering device, dust can be reduced, meanwhile, cement can be accurately weighed, and the automatic cement unpacking and metering device belongs to the technical field of cement weighing equipment.

Description

Technical Field

[0001] The invention relates to the technical field of cement weighing equipment, in particular to an automatic cement bag opening and metering device. Background Art

[0002] Cement is a cementitious material in powder form. After opening the cement container, it will often splash out. The atmosphere filled with cement will cause trouble to on-site personnel. Therefore, when taking cement, it is necessary to shovel it out with a shovel, and weighing the weight takes a long time, and the deviation of the weighed weight will be large. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide an automatic cement unpacking and metering device to solve the problems that cement needs to be scooped out with a shovel, weighing the weight takes a long time, and the weighed weight has a large deviation.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A cement automatic bag opening and metering device comprises: a frame; a first material box, the first material box is mounted on a second material box, and the first material box and the second material box are connected to each other; a cement bag placement area is provided on the top of the first material box; a second material box, the second material box is mounted on the frame, and the second material box is connected to a metering mechanism for conveying cement; a cement bag cutting mechanism, the cement bag cutting mechanism is arranged on the first material box, and the cement bag cutting mechanism can cut open cement bags placed in the cement bag placement area; a metering mechanism, the metering mechanism is connected to the discharge port of the second material box, and the metering mechanism can measure the cement delivered by the second material box.

[0006] As a preferred embodiment, the metering mechanism includes a valve, a pneumatic actuator, a discharge container and a gravity sensor. The discharge container has an inlet and an outlet. The inlet is connected to the second material box, the outlet is provided with a discharge port switch, the discharge port switch is provided with a load-bearing plate, and the gravity sensor is arranged between the discharge port switch and the load-bearing plate; the valve is arranged at the inlet, and the pneumatic actuator is connected to the valve to drive the opening of the valve.

[0007] As a preferred embodiment, the cement bag cutting mechanism comprises a blade, a cross bar, a sliding bar and a slider, the blade and the slider are fixedly connected, the slider is slidably connected to the sliding bar, and the cross bar and the sliding bar are fixed side by side on the first material box.

[0008] As a preferred embodiment, the bottom of the first material box is in an inverted trapezoidal shape.

[0009] As a preference, a foam plate is provided at the connection between the second material box and the metering mechanism.

[0010] As a preferred embodiment, the automatic cement bag opening and metering device also includes a controller, and the cement bag cutting mechanism and the metering mechanism are both electrically connected to the controller.

[0011] As a preferred embodiment, the automatic cement unpacking and metering device further comprises a pneumatic vibrator, which is arranged on the first material box.

[0012] As a preferred embodiment, a support plate and a baffle are provided on the top of the first material box, the baffle is arranged around the top of the support plate to form a cement bag placement area, and the support plate is provided with a movable groove for the cement bag cutting mechanism to move.

[0013] As a preferred embodiment, the frame includes support rods, a base frame and a movable wheel group. There are four support rods, which are respectively fixed on the four top corners of the base frame. The movable wheel group is arranged at the bottom of the base frame; the second material box is fixed on the top of the support rods.

[0014] As a preferred embodiment, an observation hole is provided on the side wall of the second material box.

[0015] In general, the present invention has the following advantages:

[0016] The present invention provides an automatic cement metering device, which places a cement bag from the upper end of a first material box onto a support plate, fixes the cement bag, operates a slider to move a blade fixed thereon, cuts the cement bag, and then starts a pneumatic vibrator to vibrate the cement and cause it to fall. The cement slides into a second material box, and the amount of cement can be seen in an observation hole. Then, the pneumatic actuator is operated to open a valve to take out the required amount of cement. A gravity sensor loaded at the bottom of the discharge container takes material according to the set weight and automatically controls the closing of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the cement automatic bag opening and metering device.

[0018] Figure 2 This is a top view of the automatic cement unpacking and metering device.

[0019] Figure 3 This is a side view of the automatic cement unpacking and metering device.

[0020] Figure 4 It is a three-dimensional diagram of the cement bag cutting mechanism.

[0021] Among them: 1-frame, 2-first material box, 3-second material box, 4-blade, 5-cross bar, 6-slide bar, 7-slide, 8-foam board, 9-pneumatic vibrator, 10-support plate, 11-moving wheel set, 12-valve, 13-air inlet, 14-air outlet, 15-discharging container, 16-pneumatic actuator, 17-discharging port switch, 18-observation hole. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 4 As shown, the present embodiment provides an automatic cement unpacking and metering device, comprising: a frame 1; a first material box 2, the first material box 2 is mounted on the second material box 3, and the first material box 2 and the second material box 3 are connected to each other; a cement bag placement area is provided on the top of the first material box 2; a second material box 3, the second material box 3 is mounted on the frame 1, and the second material box 3 is connected to a metering mechanism for conveying cement; a cement bag cutting mechanism, the cement bag cutting mechanism is arranged on the first material box 2, and the cement bag cutting mechanism can cut the cement bags placed in the cement bag placement area; a metering mechanism, the metering mechanism is connected to the discharge port of the second material box 3, and the metering mechanism can measure the cement delivered by the second material box 3.

[0024] In some embodiments, the metering mechanism includes a valve 12 (Dujie valve D671F-16Q), a pneumatic actuator 16 (Shenchi pneumatic 4V210-08), a discharge container 15 and a gravity sensor (Zhongruo force transmission 0-1T+ZN5H), the discharge container 15 has an inlet and an outlet, the inlet is connected to the second material box 3, and the outlet is provided with a discharge port switch 17 (Dujie valve D721F-18Q), the discharge port switch 17 is provided with a bearing plate, and the gravity sensor is arranged between the discharge port switch 17 (mainly controlling cement discharge) and the bearing plate; the valve 12 is arranged at the inlet, and the pneumatic actuator 16 is connected to the valve 12 to drive the opening of the valve 12. Specifically, the valve 12 is a pneumatic valve 12.

[0025] In some embodiments, the cement bag cutting mechanism includes a blade 4, a cross bar 5 (a reinforcement structure to ensure stable operation of the cement bag cutting mechanism), a sliding bar 6 and a slider 7 (Yadek magnetic rodless cylinder), the blade 4 and the slider 7 are fixedly connected, the slider 7 is slidably connected to the sliding bar 6, and the cross bar 5 and the sliding bar 6 are fixed side by side on the first material box 2.

[0026] In some embodiments, the bottom of the first material box 2 is in an inverted trapezoidal shape. By setting the bottom of the first material box 2 in an inverted trapezoidal shape, the cement is shaken into the second material box 3 in cooperation with the pneumatic vibrator 9 .

[0027] In some embodiments, a foam plate 8 is provided at the connection between the second material box 3 and the metering mechanism. Specifically, the second material box 3 is kept in a relatively sealed environment by providing the foam plate 8. The foam plate and the discharge container 15 are mainly connected to the bottom of the second material box by bolts and seals (sealing rings).

[0028] In some embodiments, an automatic cement bag opening and metering device also includes a multi-way pneumatic switch controller (a pair of Multi-way Yadek pneumatic solenoid control valves 4V210-08 two-position five-way), and the cement bag cutting mechanism and the metering mechanism are both electrically connected to the controller. Specifically, the controller is electrically connected to the slider 7, the pneumatic vibrator 9, the pneumatic actuator 16 and the weight sensor respectively, and the controller is connected to the power supply. The controller controls the slider 7 to start moving along the slide bar 6, so that the blade 4 moves along the movable groove to cut the cement bag; the controller controls the pneumatic vibrator 9 to start, and the pneumatic vibrator 9 can drive the first material box 2 to vibrate, and finally realize the cement in the cement bag is shaken off into the first material box 2, and then shaken off from the first material box 2 into the second material box 3; the controller controls the pneumatic actuator 16 to start, and by controlling the air intake of the pneumatic actuator 16, the pneumatic actuator 1 6 drives the valve 12 to open or close, thereby controlling the cement in the second material box 3 to be transported to the discharge container 15 or suspending the transport to the discharge container 15; after the weight sensor weighs the cement transported to the discharge container 15, according to the preset cement weight, as long as the cement weight detected by the weight sensor reaches the preset cement weight, the weight sensor sends a signal to the controller, and the controller judges the received signal. When the detected cement weight is equal to the preset cement weight (or within the weight range), the controller controls the pneumatic actuator 16 to start, and the pneumatic actuator 16 drives the valve 12 to close.

[0029] In some embodiments, a cement automatic bag opening and metering device further includes a pneumatic vibrator 9 (turbine pneumatic vibrator NCT-2), which is arranged on the first material box 2. Specifically, the pneumatic vibrator 9 is fixed on the outside of the baffle, and since the baffle and the support plate 10 are fixed on the first material box 2, the pneumatic vibrator 9 is arranged, so that when the pneumatic vibrator 9 is started, the first material box 2 can be driven to vibrate, and finally the cement in the cement bag is shaken off into the first material box 2, and then shaken off from the first material box 2 into the second material box 3.

[0030] In some embodiments, a support plate 10 and a baffle are provided on the top of the first material box 2. The baffle is arranged around the top of the support plate 10 to form a cement bag placement area. The support plate 10 is provided with a movable groove for the cement bag cutting mechanism to move. Specifically, the movable groove is located in the middle of the support plate 10, dividing the support plate 10 into two flat plates. A notch is arranged in the middle of the two flat plates to form a cement sliding opening, which is connected to the entrance of the first material box 2. There are four baffles, which are respectively fixed on the four sides of the support plate 10. By surrounding the four sides of the support plate 10, when the cement bag is placed on the support plate 10, the horizontal direction of the cement bag is restricted and cannot slide from the four sides of the support plate 10.

[0031] In some embodiments, the frame 1 includes a support rod, a base frame and a moving wheel set 11. The number of support rods is four, and the four support rods are respectively fixed at the four top corners of the base frame. The moving wheel set 11 is arranged at the bottom of the base frame; the second material box 3 is fixed at the top of the support rod. Specifically, the base frame is a rectangular frame formed by splicing aluminum alloy profiles. The support rod is made of aluminum alloy profiles. The moving wheel set 11 can adopt the rollers of an existing trolley, and the number of rollers is four, and the four rollers are distributed in a rectangular shape at the bottom of the base frame. When using the automatic cement bag opening and metering device, it can be pushed to the corresponding position manually.

[0032] In some embodiments, an observation hole 18 is provided on the side wall of the second material box 3. The observation hole 18 is a vertical long hole structure. Transparent glass or a transparent plate (acrylic plate, PVC transparent plate) can be provided at the observation hole 18 to prevent cement from floating out of the observation hole 18. At the same time, the remaining amount of cement in the second material box 3 can also be observed.

[0033] In the above embodiment, the pneumatic actuator 16 and the slider 7 are both provided with an air inlet 13 and an air outlet 14, and the air inlet 13 and the air outlet 14 are respectively connected to an air inlet pipe and an air outlet pipe, so that the pneumatic actuator 16 and the slider 7 can be connected to the air source through the air inlet pipe and the air outlet pipe to operate.

[0034] The working principle of the scheme in the above embodiment is as follows: a cement bag is placed on the support plate 10 at the top of the first material box 2, and the cement bag is fixed on the support plate 10 by its own weight. The controller controls the slider 7 to move on the slide rod 6, so that the blade 4 fixed on the slider 7 moves to cut the cement bag. Then the controller starts the pneumatic vibrator 9 to vibrate the first material box 2, so that the cement in the cement bag falls into the first material box 2 and the second material box 3 in turn after vibration. When the cement slides into the second material box 3, the amount of cement can be seen in the observation hole 18. Then the pneumatic actuator 16 is operated by the controller to open the valve 12 to take out the required amount of cement. Through the gravity sensor loaded at the bottom of the discharge container 15, the gravity sensor will take material according to the set weight. When the corresponding cement weight is weighed, the gravity sensor sends a signal to the controller, and the controller controls the pneumatic actuator 16 to close the valve 12.

[0035] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A cement automatic bag opening and metering device, characterized in that: include: Frame; A first material box, the first material box is mounted on the second material box, the first material box and the second material box are connected to each other; a cement bag placement area is provided on the top of the first material box; A second material box, the second material box is mounted on the frame, the second material box is connected to the metering mechanism for conveying cement; a cement bag cutting mechanism, the cement bag cutting mechanism is arranged on the first material box, and the cement bag cutting mechanism can cut open the cement bags placed in the cement bag placement area; The metering mechanism is connected to the discharge port of the second material box, and the metering mechanism can measure the cement delivered by the second material box.

2. A cement automatic package opening and metering device according to claim 1, characterized in that: The metering mechanism includes a valve, a pneumatic actuator, a discharge container and a gravity sensor. The discharge container has an inlet and an outlet. The inlet is connected to the second material box, the outlet is provided with a discharge port switch, the discharge port switch is provided with a load-bearing plate, and the gravity sensor is arranged between the discharge port switch and the load-bearing plate; the valve is arranged at the inlet, and the pneumatic actuator is connected to the valve to drive the opening of the valve.

3. The automatic cement package opening and metering device according to claim 1 is characterized in that: The cement bag cutting mechanism comprises a blade, a crossbar, a sliding rod and a slider, the blade and the slider are fixedly connected, the slider is slidably connected with the sliding rod, and the crossbar and the sliding rod are fixed side by side on the first material box.

4. The cement automatic package opening and metering device according to claim 1 is characterized in that: The bottom of the first material box is in an inverted trapezoidal shape.

5. The cement automatic package opening and metering device according to claim 1 is characterized in that: A foam plate is provided at the connection between the second material box and the metering mechanism.

6. The cement automatic package opening and metering device according to claim 1, characterized in that: The utility model also comprises a controller, and the cement bag cutting mechanism and the metering mechanism are both electrically connected to the controller.

7. The cement automatic package opening and metering device according to claim 1 is characterized in that: It also includes a pneumatic vibrator, which is arranged on the first material box.

8. The cement automatic package opening and metering device according to claim 1 is characterized in that: A support plate and a baffle are arranged on the top of the first material box. The baffle is arranged around the top of the support plate to form a cement bag placement area. The support plate is provided with a movable groove for the cement bag cutting mechanism to move.

9. The cement automatic package opening and metering device according to claim 1, characterized in that: The frame body includes support rods, a base frame and a moving wheel set. There are four support rods, which are respectively fixed on the four top corners of the base frame. The moving wheel set is arranged at the bottom of the base frame. The second material box is fixed on the top of the support rods.

10. The cement automatic package opening and metering device according to claim 1, characterized in that: An observation hole is arranged on the side wall of the second material box.

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