A powder sampling device

Abstract

The utility model discloses a kind of powder sampling devices, belong to powder sampling technical field.The device includes base, center control valve, storage hopper, sampling assembly and sample discharge assembly, the center control valve is equipped on base, and is connected with base by control assembly, an import and two exports are equipped on the center control valve, the storage hopper is equipped on center control valve, and is connected with the import of center control valve, the sampling assembly is equipped on base, and is connected with one of the exports of center control valve, the sample discharge assembly is connected with another export of center control valve.Control assembly, center control valve, sampling assembly and sample discharge assembly when cooperate sampling to the powder in storage hopper, it is not basically affected by the level of material in storage hopper, improve the practicality of sampling device.In addition, control assembly, center control valve, sampling assembly and sample discharge assembly are all located outside storage hopper, and will not cause interference to normal downward flow of material in storage hopper.

Description

Technical Field

[0001] This utility model relates to a powder sampling device, belonging to the field of powder sampling technology. Background Technology

[0002] During the production or processing of powder materials, it is necessary to take samples of the powder materials in order to conduct quality analysis and performance testing.

[0003] For example, Chinese patent document CN210665147U discloses an online automatic sampling device for solid granular or powdery materials. It mainly consists of a sampling cylinder, a reciprocating cylinder, a time relay, a reversing valve, and a compressed air pipe. An outer cylinder is nested within an inner cylinder, with a certain gap between them to ensure the inner cylinder does not get stuck during reciprocating motion. The time relay controls the reversing valve, and the compressed air pipe is connected to the reciprocating cylinder via a controller. The cylinder is fixed to the inner cylinder. When the sampling time is up, the time relay is energized, the reversing valve opens, the air circuit is connected, and the cylinder moves, pushing the inner cylinder out to the conveyor belt discharge port. The sample flows through the opening at the top of the inner cylinder into a sample storage box connected to the inner cylinder. This sampling device is easy to disassemble, operates stably, has a low failure rate, is easy to maintain, has no restrictions on the length of the sampling cylinder, requires minimal installation space, and provides good sample representativeness, especially ensuring the representativeness of sample particle size.

[0004] However, when the material level in the hopper is lower than the position of the sampling inner cylinder opening slot in the hopper, and the belt stops supplying material to the hopper, the sampling device will not be able to perform sampling normally, resulting in poor practicality. In addition, the fact that both the sampling outer cylinder and the sampling inner cylinder extend into the hopper will interfere with the normal downward flow of material in the hopper. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a powder sampling device.

[0006] This utility model is achieved through the following technical solution:

[0007] A powder sampling device includes a base, a central control valve, a storage hopper, a sampling component, and a discharging component. The central control valve is mounted on the base and connected to the base via the control component. The central control valve has one inlet and two outlets. The storage hopper is mounted on the central control valve and connected to the inlet of the central control valve. The sampling component is mounted on the base and connected to one of the outlets of the central control valve. The discharging component is connected to the other outlet of the central control valve.

[0008] The central control valve includes a valve body and a valve core. The valve body is cylindrical, and an inlet pipe, a support pipe, a left outlet pipe, and a right outlet pipe are provided on the outer circumference of the valve body. The inlet pipe, the left outlet pipe, and the right outlet pipe are all connected to the interior of the valve body, while the support pipe is not connected to the interior of the valve body. The support pipe is coaxially arranged with the inlet pipe, and the central axis of the support pipe is perpendicular to the central axis of the valve body. The support pipe is connected to the base. The right outlet pipe is coaxially arranged with the left outlet pipe, and the central axis of the right outlet pipe is perpendicular to the central axis of the valve body and the central axis of the inlet pipe. The valve core is located in the valve body and is rotatably connected to the valve body. A T-shaped flow channel is opened on the valve core, and a square rod is provided at one end of the valve core.

[0009] The inlet pipe, support pipe, left outlet pipe, and right outlet pipe are all equipped with flanges at the ends furthest from the valve body.

[0010] The control assembly includes a double-ear seat, a control cylinder, and a rocker arm. The double-ear seat is mounted on a base and has a pin. One end of the control cylinder is rotatably connected to the pin on the double-ear seat via a single-ear seat. One end of the rocker arm is rotatably connected to the end of the control cylinder away from the double-ear seat, and the other end is connected to a square rod on the valve core.

[0011] The sampling assembly includes a suction control cylinder and a suction execution cylinder. The suction control cylinder is mounted on the base via a mounting bracket, and the suction execution cylinder is connected to the suction control cylinder via a coupling.

[0012] The suction actuator includes a cylinder body and a piston B slidably disposed within the cylinder body. One end of the cylinder body away from the suction control cylinder is connected to one of the outlets of the central control valve. A piston rod B is coaxially disposed on the piston B, and the piston rod B is connected to the piston rod A of the suction control cylinder via a coupling.

[0013] The sampling assembly includes a T-shaped sampling tube. The first end of the T-shaped sampling tube is connected to one of the outlets of the central control valve through a connecting pipe. The second end of the T-shaped sampling tube is arranged upwards and a discharge cylinder is provided at the second end. The third end of the T-shaped sampling tube is arranged downwards.

[0014] It also includes a sample receiving container, which is placed directly below the third end of the T-shaped sample distribution tube.

[0015] The beneficial effects of this invention are as follows: Since the storage hopper is installed on and connected to the inlet of the central control valve (i.e., the central control valve is located below the storage hopper), the control components, central control valve, sampling components, and discharge components are largely unaffected by the material level within the storage hopper when working together to sample the powder, thus improving the practicality of the sampling device. Furthermore, since the control components, central control valve, sampling components, and discharge components are all located outside the storage hopper, they will not interfere with the normal downward flow of material within the hopper. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the central control valve of this utility model;

[0018] Figure 3 for Figure 2 A structural diagram from another perspective;

[0019] Figure 4 This is a schematic diagram of the valve core structure of this utility model;

[0020] Figure 5 This is a cross-sectional view of the central control valve of this utility model when port B and port C are connected and port A is blocked.

[0021] Figure 6 This is a cross-sectional view of the central control valve of this utility model when port A and port B are connected and port C is blocked.

[0022] In the diagram: 1-base, 2-mounting seat, 3-suction control cylinder, 4-coupling, 5-suction execution cylinder, 6-storage hopper, 7-discharge cylinder, 8-T-shaped discharge pipe, 9-sample receiving bucket, 10-connecting pipe, 11-central control valve, 111-valve body, 112-inlet pipe, 113-left outlet pipe, 114-valve core, 115-support pipe, 116-right outlet pipe, 117-T-shaped flow channel, 118-square rod, 12-rocker arm, 13-control cylinder, 14-double-ear seat. Detailed Implementation

[0023] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0024] like Figures 1 to 6 As shown, the powder sampling device of this utility model includes a base 1, a central control valve 11, a storage hopper 6, a sampling component, and a discharging component. The central control valve 11 is mounted on the base 1 and connected to the base 1 via the control component. The central control valve 11 has one inlet and two outlets. The storage hopper 6 is mounted on the central control valve 11 and connected to the inlet of the central control valve 11. The sampling component is mounted on the base 1 and connected to one outlet of the central control valve 11. The discharging component is connected to the other outlet of the central control valve 11. In use, the control component drives the central control valve 11 to operate, thereby controlling the connection between the one inlet and the two outlets of the central control valve 11. First, as... Figure 1 and Figure 6As shown, the control component drives the central control valve 11 to operate, connecting the inlet of the central control valve 11 to the outlet connected to the sampling component (i.e., port A and port B are connected), that is, connecting the storage hopper 6 to the sampling component. At this time, the outlet connected to the discharge component is blocked (i.e., port C is blocked). Then, the sampling component operates, sucking some of the powder in the storage hopper 6 into the sampling component; next, as... Figure 1 and Figure 5 As shown, the control component drives the central control valve 11 to operate again, causing the inlet of the central control valve 11 to be blocked (i.e., port A is blocked), while the two outlets are connected (i.e., ports B and C are connected). Then, the sampling component operates to push the powder inside into the discharge component. Finally, the discharge component pushes out the powder inside, completing the powder sampling work.

[0025] like Figure 1 As shown, since the storage hopper 6 is mounted on and connected to the inlet of the central control valve 11 (i.e., the central control valve 11 is located below the storage hopper 6), the control components, central control valve 11, sampling components, and discharge components are largely unaffected by the material level within the storage hopper 6 when working together to sample the powder, thus improving the practicality of the sampling device. Furthermore, since the control components, central control valve 11, sampling components, and discharge components are all located outside the storage hopper 6, they will not interfere with the normal downward flow of material within the storage hopper 6.

[0026] During use, the bottom of the storage hopper 6 is also equipped with a discharge port to facilitate the supply of powder to other equipment.

[0027] The central control valve 11 includes a valve body 111 and a valve core 114. The valve body 111 is cylindrical, and an inlet pipe 112, a support pipe 115, a left outlet pipe 113, and a right outlet pipe 116 are provided on the outer circumference of the valve body 111. The inlet pipe 112, the left outlet pipe 113, and the right outlet pipe 116 are all connected to the interior of the valve body 111, while the support pipe 115 is not connected to the interior of the valve body 111. The support pipe 115 is coaxially arranged with the inlet pipe 112. The central axis of the support pipe 115 is perpendicular to the central axis of the valve body 111, and the support pipe 115 is connected to the base 1. The right outlet pipe 116 and the left outlet pipe 113 are arranged coaxially, and the central axis of the right outlet pipe 116 is perpendicular to the central axis of the valve body 111 and the central axis of the inlet pipe 112. The valve core 114 is located inside the valve body 111 and is rotatably connected to the valve body 111. A T-shaped flow channel 117 is opened on the valve core 114, and a square rod 118 is provided at one end of the valve core 114. In use, the inlet pipe 112 and the support pipe 115 are arranged vertically, and the left outlet pipe 113 and the right outlet pipe 116 are arranged horizontally. Retaining rings are provided on the inner walls of both ends of the valve body 111 to axially limit the valve core 114.

[0028] Flanges are provided at the ends of the inlet pipe 112, support pipe 115, left outlet pipe 113, and right outlet pipe 116 that are away from the valve body 111.

[0029] The control assembly includes a double-ear seat 14, a control cylinder 13, and a rocker arm 12. The double-ear seat 14 is mounted on the base 1 and has a pin. One end of the control cylinder 13 is rotatably connected to the pin on the double-ear seat 14 via a single-ear seat. One end of the rocker arm 12 is rotatably connected to the end of the control cylinder 13 away from the double-ear seat 14, and the other end is connected to the square rod 118 on the valve core 114.

[0030] The sampling assembly includes a suction control cylinder 3 and a suction execution cylinder 5. The suction control cylinder 3 is mounted on the base 1 via a mounting seat 2, and the suction execution cylinder 5 is connected to the suction control cylinder 3 via a coupling 4.

[0031] The suction actuator 5 includes a cylinder body and a piston B slidably disposed within the cylinder body. One end of the cylinder body away from the suction control cylinder 3 is connected to one of the outlets of the central control valve 11. A piston rod B is coaxially mounted on the piston B, and the piston rod B is connected to the piston rod A of the suction control cylinder 3 via a coupling 4. In use, the end of the cylinder body away from the suction control cylinder 3 is connected to the left outlet pipe 113 of the central control valve 11.

[0032] The sorting assembly includes a T-shaped sorting pipe 8. The first end of the T-shaped sorting pipe 8 is connected to one of the outlets of the central control valve 11 via a connecting pipe 10. The second end of the T-shaped sorting pipe 8 is arranged upwards and is equipped with a discharge cylinder 7. The third end of the T-shaped sorting pipe 8 is arranged downwards. In use, the first end of the T-shaped sorting pipe 8 is arranged horizontally, and the first end of the T-shaped sorting pipe 8 is connected to the right outlet pipe 116 of the central control valve 11 via the connecting pipe 10.

[0033] It also includes a sample receiving bucket 9, which is placed directly below the third end of the T-shaped sample distribution tube 8.

[0034] The working principle or sampling process of the powder sampling device described in this utility model is as follows:

[0035] like Figure 5 As shown, in the initial state, the valve core 114 blocks port A on the valve body 111, and the valve core 114 connects port B and port C on the valve body 111 through the T-shaped flow channel 117 on it.

[0036] When it is necessary to sample the powder in the storage hopper 6, the control cylinder 13 extends, driving the rocker arm 12 to rotate the valve body 111 90 degrees clockwise. At this time, the valve core 114 blocks port C on the valve body 111, and the valve core 114 connects ports A and B on the valve body 111 through the T-shaped flow channel 117 on it. Figure 6As shown. Then, the suction control cylinder 3 is activated, which drives the piston rod B and piston B of the suction execution cylinder 5 to move to the left a certain distance, so as to form a negative pressure in the rodless chamber of the suction execution cylinder 5, thereby sucking some of the powder in the storage hopper 6 into the rodless chamber of the suction execution cylinder 5.

[0037] Next, the control cylinder 13 shortens, driving the rocker arm 12 to rotate the valve body 111 counterclockwise by 90 degrees. At this time, the valve core 114 blocks port A on the valve body 111, and the valve core 114 connects ports B and C on the valve body 111 through the T-shaped flow channel 117 on it. Figure 5 As shown. Then, the suction control cylinder 3 is activated, which drives the piston rod B and piston B of the suction execution cylinder 5 to move to the right until the powder in the rodless chamber of the suction execution cylinder 5 is pushed into the vertical section of the T-shaped sample tube 8.

[0038] Next, the discharge cylinder 7 actuates, its piston moves downward to push the powder in the T-shaped discharge tube 8, causing it to fall into the sample receiving bucket 9. Then, the suction control cylinder 3 actuates again, driving the piston rod B and piston B of the suction execution cylinder 5 to move to the left to reset to the initial state; the discharge cylinder 7 actuates, its piston moves upward to return to the initial state.

Claims

1. A powder sampling device, characterized by: The system includes a base (1), a central control valve (11), a storage hopper (6), a sampling component, and a discharge component. The central control valve (11) is located on the base (1) and connected to the base (1) via the control component. The central control valve (11) has one inlet and two outlets. The storage hopper (6) is located on the central control valve (11) and connected to the inlet of the central control valve (11). The sampling component is located on the base (1) and connected to one of the outlets of the central control valve (11). The discharge component is connected to the other outlet of the central control valve (11).

2. The powder sampling device of claim 1, wherein: The central control valve (11) includes a valve body (111) and a valve core (114). The valve body (111) is cylindrical. An inlet pipe (112), a support pipe (115), a left outlet pipe (113), and a right outlet pipe (116) are provided on the outer circumference of the valve body (111). The inlet pipe (112), the left outlet pipe (113), and the right outlet pipe (116) are all connected to the interior of the valve body (111), while the support pipe (115) is not connected to the interior of the valve body (111). The support pipe (115) is coaxially arranged with the inlet pipe (112). The central axis of (115) is perpendicular to the central axis of the valve body (111), and the support pipe (115) is connected to the base (1). The right outlet pipe (116) and the left outlet pipe (113) are arranged coaxially, and the central axis of the right outlet pipe (116) is arranged perpendicular to the central axis of the valve body (111) and the central axis of the inlet pipe (112). The valve core (114) is located inside the valve body (111) and is rotatably connected to the valve body (111). A T-shaped flow channel (117) is opened on the valve core (114), and a square rod (118) is provided at one end of the valve core (114).

3. The powder sampling device of claim 2, wherein: The inlet pipe (112), support pipe (115), left outlet pipe (113), and right outlet pipe (116) are all equipped with flanges at the ends away from the valve body (111).

4. The powder sampling device of claim 2, wherein: The control assembly includes a double-ear seat (14), a control cylinder (13), and a rocker arm (12). The double-ear seat (14) is mounted on the base (1) and has a pin. One end of the control cylinder (13) is rotatably connected to the pin on the double-ear seat (14) via a single-ear seat. One end of the rocker arm (12) is rotatably connected to the end of the control cylinder (13) away from the double-ear seat (14), and the other end is connected to the square rod (118) on the valve core (114).

5. The powder sampling device of claim 1, wherein: The sampling assembly includes a suction control cylinder (3) and a suction execution cylinder (5). The suction control cylinder (3) is mounted on the base (1) via a mounting seat (2), and the suction execution cylinder (5) is connected to the suction control cylinder (3) via a coupling (4).

6. The powder sampling device of claim 5, wherein: The suction cylinder (5) includes a cylinder body and a piston B that slides inside the cylinder body. One end of the cylinder body away from the suction control cylinder (3) is connected to one of the outlets of the central control valve (11). A piston rod B is coaxially mounted on the piston B. The piston rod B is connected to the piston rod A of the suction control cylinder (3) through a coupling (4).

7. The powder sampling device of claim 1, wherein: The sorting assembly includes a T-shaped sorting tube (8), the first end of which is connected to one of the outlets of the central control valve (11) via a connecting pipe (10), the second end of which is arranged upwards and is provided with a discharge cylinder (7), and the third end of which is arranged downwards.

8. The powder sampling device of claim 7, wherein: It also includes a sample receiving bucket (9), which is placed directly below the third end of the T-shaped sample distribution tube (8).

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