Closed solid feeding device

Abstract

The utility model discloses a closed solid feeding device which comprises a feeding pipe, a discharging assembly is arranged in the feeding pipe, the discharging assembly comprises a pushing mechanism and a blocking mechanism, the blocking mechanism is arranged in an opening in the bottom end of the feeding pipe, the pushing mechanism is arranged in an opening in the top end of the feeding pipe, and the blocking mechanism is arranged in the opening in the top end of the feeding pipe. And a feeding mechanism is arranged on the peripheral side of the pushing mechanism. When the improved closed solid feeding device is used, the pushing mechanism and the blocking mechanism are matched with each other, the internal space of the opening in the bottom end of the feeding pipe can be adjusted, so that the amount of solid raw materials injected into the feeding pipe from the feeding mechanism is basically constant, and then when the pushing mechanism pushes the solid raw materials out of the feeding pipe from the feeding pipe, the material pushing mechanism can push the solid raw materials out of the feeding pipe. Solid raw materials attached to the inner wall of the feeding pipe can be synchronously scraped off and pushed out of the feeding pipe, the raw material adding amount of the device is accurate, an operator does not need to specially clean the feeding pipe after the device is used, and the workload of the operator is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a closed solid feeding device. Background Art

[0002] A solid feeding device is a device widely used in various industrial production processes to transport solid materials from one place to another, or to add them to production equipment for further processing. When adding solid raw materials, in order to prevent the escape of harmful gases inside the device or the escape of small particles of solid raw materials, a closed fixed body feeding device is sometimes used to add solid raw materials.

[0003] When adding raw materials, the existing solid feeding device generally controls the feeding amount through a weighing mechanism or a spiral blade. Since the solid raw materials are attached to the inner wall of the feed pipe or the raw materials slide down due to their own gravity, excessive addition of raw materials may occur during the raw material adding process, or a small amount of raw materials may not slide out of the feed pipe, which ultimately leads to inaccurate raw material addition amount. In addition, the attachment of raw materials to the inner wall of the feed pipe will also require the operator to clean the feed pipe after the device is used, which increases the operator's workload. Utility Model Content

[0004] The purpose of the utility model is to provide a closed solid feeding device so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed solid feeding device, comprising a feed pipe, a discharge assembly is provided in the feed pipe, the discharge assembly comprises a pushing mechanism and a sealing mechanism, the sealing mechanism is provided in the bottom opening of the feed pipe, the pushing mechanism is provided in the top opening of the feed pipe, and a feeding mechanism is provided on the outer peripheral side of the pushing mechanism.

[0006] Preferably, the pushing mechanism includes a threaded rod, the top end of the feed pipe is fixedly provided with a support plate by bolts, the top end of the threaded rod is inserted into the support plate and rotatably connected to the support plate, a motor is fixedly provided on the top side of the support plate, and the driving end of the motor is inserted into the support plate and fixedly connected to the top end of the threaded rod.

[0007] Preferably, a push plate is provided on the threaded sleeve on the outer peripheral side of the threaded rod, and the outer peripheral wall of the push plate is in contact with the inner wall of the feed pipe.

[0008] Preferably, the sealing mechanism includes a sealing plate, which is arranged at the bottom end of the feed pipe, and the top side of the sealing plate is an arc-shaped setting with the center bulging upward, and the top of the sealing plate is inserted into the feed pipe and contacts the inner wall of the bottom opening of the feed pipe.

[0009] Preferably, a square rod with a T-shaped cross-section is slidably penetrated at the center of the sealing plate, and the top of the square rod is fixedly connected to the bottom end of the threaded rod, a spring is provided between the bottom side of the sealing plate and the square rod, and the two ends of the spring are respectively fixedly connected to the sealing plate and the square rod.

[0010] Preferably, the feeding mechanism includes a plurality of electrically controlled valves, which are arranged in a circular array on the top side of the push plate, and the discharge end of the electrically controlled valve passes through the sealing plate and is fixedly connected to the push plate, and the bottom end of the electrically controlled valve is coplanar with the bottom side of the push plate.

[0011] Preferably, the top threaded sleeve of the electric control valve is provided with a transparent square tube, the top threaded sleeve of the transparent square tube is provided with a soft tube, the transparent square tube and the electric control valve are both matched with the inner wall gap of the support plate and the feed pipe, and an infrared transmitter and an infrared receiver are relatively fixedly installed in the tube wall of the transparent square tube.

[0012] The utility model has at least the following beneficial effects:

[0013] 1. When the improved closed solid feeding device is in use, the push mechanism and the blocking mechanism cooperate with each other to adjust the internal space of the bottom opening of the feeding pipe, so that the amount of solid raw materials injected into the feeding pipe by the feeding mechanism is basically constant. Then, when the push mechanism pushes the solid raw materials out of the feeding pipe, the solid raw materials attached to the inner wall of the feeding pipe can be scraped off and pushed out of the feeding pipe. The raw material addition amount of the device is relatively accurate, and the operator does not need to clean the feeding pipe specially after the device is used, which reduces the workload of the operator;

[0014] 2. When the improved closed solid feeding device is in use, due to the push of the sealing plate by the spring, the sealing plate always fits the inner wall of the bottom opening of the feed pipe when it is not constrained by external force, thereby blocking the bottom opening of the feed end, thereby preventing external water vapor from entering the feed pipe and causing solid raw materials to agglomerate, affecting the quality of the raw materials, or the raw materials from sliding off the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the feed pipe of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the transparent square tube of the utility model.

[0019] In the figure: 1. feed pipe; 2. discharge assembly; 3. push mechanism; 31. support plate; 32. threaded rod; 33. motor; 34. push plate; 4. blocking mechanism; 41. sealing plate; 42. square rod; 43. spring; 5. feed mechanism; 51. electric control valve; 52. transparent square tube; 53. soft tube; 54. infrared generator; 55. infrared receiver. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] The utility model provides a technical solution: Figure 1-3 The utility model discloses a closed solid feeding device, including a feeding pipe 1, a discharging assembly 2 is arranged in the feeding pipe 1, the discharging assembly 2 includes a pushing mechanism 3 and a blocking mechanism 4, the blocking mechanism 4 is arranged in the bottom opening of the feeding pipe 1, the pushing mechanism 3 is arranged in the top opening of the feeding pipe 1, and a feeding mechanism 5 is arranged on the outer peripheral side of the pushing mechanism 3.

[0022] In this embodiment, when the improved closed solid feeding device is in use, the pushing mechanism 3 is started to cooperate with the blocking mechanism 4 to adjust the internal space of the bottom opening of the feeding pipe 1, so that the amount of solid raw materials injected into the feeding pipe 1 by the feeding mechanism 5 is basically constant, and then the pushing mechanism 3 pushes the fixed amount of solid raw materials in the feeding pipe 1 downward, and at the same time releases the sealing state of the bottom opening of the feeding pipe 1 by the blocking mechanism 4. At the same time, when the pushing mechanism 3 pushes the solid raw materials in the feeding pipe 1 out of the feeding pipe 1, the solid raw materials attached to the inner wall of the feeding pipe 1 can be scraped off and pushed out of the feeding pipe 1 at the same time;

[0023] It should be noted that the feed end of the soft tube 53 is connected to the discharge port of the external solid raw material feeding device, so that the solid raw material feeding device can directly push the solid raw material into the feed pipe 1.

[0024] In a further preferred embodiment of the present invention, Figure 2 As shown, the pushing mechanism 3 includes a threaded rod 32, a support plate 31 is fixedly mounted on the top of the feed pipe 1 by bolts, the top of the threaded rod 32 is inserted into the support plate 31 and is rotatably connected to the support plate 31, a motor 33 is fixedly mounted on the top side of the support plate 31, and the driving end of the motor 33 is inserted into the support plate 31 and is fixedly connected to the top of the threaded rod 32;

[0025] In this embodiment, the setting of the support plate 31 can constrain and limit the motor 33 and the threaded rod 32, thereby stabilizing the position of the threaded rod 32 and the motor 33 on the top side of the feed tube 1 and inside the feed tube 1. At the same time, there is always a large amount of air between the support plate 31 and the inner wall of the top opening of the feed tube 1, thereby preventing the formation of negative pressure or high pressure in the top opening of the feed tube 1 when the push plate 34 moves, affecting the movement of the push plate 34.

[0026] In a further preferred embodiment of the present invention, Figure 2 As shown, a push plate 34 is provided on the threaded sleeve on the outer peripheral side of the threaded rod 32, and the outer peripheral wall of the push plate 34 contacts the inner wall of the feed pipe 1;

[0027] In this embodiment, the starting motor 33 drives the threaded rod 32 to rotate. Due to the mutual interference between the push plate 34 and the inner wall of the feed pipe 1, the push plate 34 will not rotate together with the threaded rod 32. At this time, the rotating threaded rod 32 pushes the push plate 34 to move in a linear trajectory in the vertical direction, thereby adjusting the position of the push plate 34 in the feed pipe 1, and then adjusting the space between the bottom side of the push plate 34 and the sealing plate 41, thereby adjusting the maximum feed amount in the feed pipe 1;

[0028] When the solid raw material in the feed pipe 1 is pushed out from the feed pipe 1, the motor 33 drives the threaded rod 32 to rotate forwardly, and the threaded rod 32 rotating forwardly pushes the push plate 34 downwardly, so that the solid raw material in the feed pipe 1 can be pushed out of the feed pipe 1 from the bottom opening of the feed pipe 1.

[0029] In a further preferred embodiment of the present invention, Figure 2 As shown, the blocking mechanism 4 includes a sealing plate 41, which is arranged at the bottom end of the feed pipe 1, and the top side of the sealing plate 41 is arranged in an arc shape with the center bulging upward, and the top of the sealing plate 41 is inserted into the feed pipe 1 and contacts the inner wall of the bottom opening of the feed pipe 1;

[0030] In this embodiment, the arc-shaped top of the sealing plate 41 is set. When the bottom side of the push plate 34 extends out from the opening at the bottom end of the feed pipe 1, due to the mutual interference between the bottom side of the push plate 34 and the center position of the top side of the sealing plate 41, there is always a gap of a specific size between the bottom side of the push plate 34 and the arc surface of the top side of the sealing plate 41, so that the solid raw material on the top side of the sealing plate 41 will not slide off the top side of the sealing plate 41 due to the clamping of the solid raw material by the push plate 34 and the sealing plate 41.

[0031] In a further preferred embodiment of the present invention, Figure 2 As shown, a square rod 42 with a T-shaped cross section is slidably provided at the center of the sealing plate 41, and the top of the square rod 42 is fixedly connected to the bottom end of the threaded rod 32, a spring 43 is provided between the bottom side of the sealing plate 41 and the square rod 42, and the two ends of the spring 43 are fixedly connected to the sealing plate 41 and the square rod 42 respectively;

[0032] In the present embodiment, during the rotation of the threaded rod 32, due to the mutual interference between the square rod and the sealing plate 41, the rotating threaded rod 32 synchronously drives the sealing plate 41 to rotate together, and the centrifugal force of the solid raw material on the top side of the sealing plate 41 during the rotation prevents the solid raw material on the top side of the sealing plate 41 from sliding off due to the friction between the solid raw material and the sealing plate 41. The setting of the spring 43 can always apply an upward thrust to the sealing plate 41, so that the sealing plate 41 is automatically inserted into the bottom opening of the feed pipe 1 and contacts with the inner wall of the bottom opening of the feed pipe 1 when no external force is applied, and finally blocks the bottom opening of the feed pipe 1, thereby preventing external water vapor from entering the feed pipe 1 and causing the solid raw material to agglomerate, affecting the quality of the raw material, or the raw material from sliding off the sealing plate 41.

[0033] In a further preferred embodiment of the present invention, Figure 2 As shown, the feeding mechanism 5 includes a plurality of electrically controlled valves 51, which are arranged in a circumferential array on the top side of the push plate 34, and the discharge end of the electrically controlled valve 51 passes through the sealing plate 41 and is fixedly connected to the push plate 34, and the bottom end of the electrically controlled valve 51 is coplanar with the bottom side of the push plate 34;

[0034] In this embodiment, the setting of the electric control valve 51 allows external solid raw materials to be injected into the feed pipe 1 from multiple positions on the bottom side of the push plate 34, which facilitates the accumulation of solid raw materials in the feed pipe 1 and can cut off the injection of external solid raw materials into the feed pipe 1 at any time.

[0035] In a further preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, the top thread sleeve of the electric control valve 51 is provided with a transparent square tube 52, the top thread sleeve of the transparent square tube 52 is provided with a soft tube 53, the transparent square tube 52 and the electric control valve 51 are both matched with the inner wall gap of the support plate 31 and the feed pipe 1, and the infrared transmitter and the infrared receiver 55 are relatively fixedly installed in the tube wall of the transparent square tube 52;

[0036] In this embodiment, during the process of injecting the above-mentioned external solid raw materials into the feed pipe 1, after the solid raw materials fill the space between the push plate 34 and the sealing plate 41, the raw materials are subsequently pushed into the soft tube 53 and stacked inside the electric control valve 51 and in the bottom opening of the soft tube 53, so that the infrared receiver 55 cannot receive the strong infrared signal emitted by the infrared transmitter for a long time. At this time, the infrared receiver 55 or the external control host controls the electric control valve 51 to close, and finally a certain amount of solid raw materials is stored between the bottom side of the push plate 34 and the sealing plate 41.

[0037] Working principle: When the improved closed solid feeding device is in use, the operator connects the feeding end of the soft tube 53 to the discharging end of the external solid injection device, and then the operator starts the motor 33 to drive the threaded rod 32 to rotate. Due to the mutual interference between the push plate 34 and the inner wall of the feed pipe 1, the push plate 34 will not rotate with the threaded rod 32. At this time, the rotating threaded rod 32 pushes the push plate 34 to move in a linear trajectory in the vertical direction, thereby adjusting the position of the push plate 34 in the feed pipe 1, and then adjusting the space between the bottom side of the push plate 34 and the sealing plate 41, thereby adjusting the maximum feed amount in the feed pipe 1;

[0038] Then the electric control valve 51 is opened, and the solid raw material discharged from the external solid raw material feeding device is continuously pushed into the soft tube 53, and is introduced into the electric control valve 51 by the soft tube 53, and falls into the feeding tube 1 after passing through the electric control valve 51, until the solid raw material fills the space between the push plate 34 and the sealing plate 41. After the solid raw material fills the space between the push plate 34 and the sealing plate 41, the raw material subsequently pushed into the soft tube 53 is stacked inside the electric control valve 51 and in the bottom opening of the soft tube 53, so that the infrared receiver 55 cannot receive the strong infrared signal emitted by the infrared transmitter for a long time. At this time, the infrared receiver 55 or the external control host controls the electric control valve 51 to close, so that a certain amount of solid raw material is finally stored between the bottom side of the push plate 34 and the sealing plate 41.

[0039] Then the motor 33 starts to drive the threaded rod 32 to rotate forwardly, and the threaded rod 32 rotating forwardly pushes the push plate 34 downwardly. Due to the mutual interference between the push plate 34 and the solid raw material and the mutual interference between the solid raw material and the sealing plate 41, the sealing plate 41 moves downwardly to release the closed state of the bottom opening of the feed pipe 1 and compress the spring 43. At the same time, due to the mutual interference between the square rod and the sealing plate 41, the sealing plate 41 rotates together with the threaded rod 32. Due to the centrifugal force of the solid raw material on the top side of the sealing plate 41 and the gravity of the fixed raw material itself when the sealing plate 41 rotates, the solid raw material slides out of the feed pipe 1 from the inside along the gap between the arc surface of the sealing plate 41 and the inner wall of the bottom opening of the feed pipe 1, and the push of the threaded rod 32 by the motor 33 stops when the bottom side of the push plate 34 slides out of the bottom opening of the feed pipe 1.

[0040] When the push plate 34 moves downward, it slides downward along the inner wall of the feed pipe 1, and the solid raw materials attached to the inner wall of the feed pipe 1 slide down. As the solid raw materials in the feed pipe 1 are discharged, the bottom side of the push plate 34 and the middle position of the top side of the sealing plate 41 collide with each other, and there is still a large gap between the bottom side of the push plate 34 and the sealing plate 41, so that the solid raw materials on the arc surface of the sealing plate 41 can slide down from the arc surface of the top side of the sealing plate 41.

[0041] After the bottom side of the push plate 34 slides out of the opening at the bottom end of the fixed tube, the motor 33 drives the threaded rod 32 to rotate in the opposite direction, thereby pulling the push plate 34 to move upward until the push plate 34 is reset. During the upward movement of the push plate 34, due to the push of the sealing plate 41 by the spring 43, the sealing plate 41 moves upward again synchronously until the top side of the sealing plate 41 fits with the inner wall of the opening at the bottom side of the feed pipe 1, and the sealing plate 41 re-blocks the bottom end opening of the feed pipe 1. According to the above repeated operations, a certain amount of solid raw materials can be continuously added into the external solid raw material processing device;

[0042] It should be noted that when the electric control valve 51 is opened, due to the gravity of the solid raw material in the soft tube 53, the solid raw material in the soft tube 53 quickly passes through the electric control valve 51 and falls into the feed pipe 1, so that the subsequent solid raw material sliding in the soft tube 53 will not completely block the infrared rays of the infrared emitter;

[0043] After the device is used, the bottom side of the push plate 34 extends out from the bottom opening of the feed pipe 1. At this time, the bottom end of the soft tube 53 moves down to the bottom opening of the feed end synchronously with the push plate 34, so that the soft tube 53 is in a straight state. Then the electric control valve 51 opens the residual solid raw material in the soft tube 53 and slides directly into the feed pipe 1 through the gap between the sealing plate 41 and the inner wall of the bottom opening of the feed pipe 1.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A closed solid feeding device, comprising a feeding pipe (1), characterized in that: A discharge assembly (2) is provided in the feed pipe (1), and the discharge assembly (2) comprises a pushing mechanism (3) and a blocking mechanism (4), wherein the blocking mechanism (4) is provided in the bottom opening of the feed pipe (1), and the pushing mechanism (3) is provided in the top opening of the feed pipe (1), and a feed mechanism (5) is provided on the outer peripheral side of the pushing mechanism (3).

2. A closed solid feeding device according to claim 1, characterized in that: The pushing mechanism (3) comprises a threaded rod (32), the top end of the feeding pipe (1) is fixedly provided with a support plate (31) by means of bolts, the top end of the threaded rod (32) is inserted into the support plate (31) and is rotatably connected to the support plate (31), a motor (33) is fixedly provided on the top side of the support plate (31), and the driving end of the motor (33) is inserted into the support plate (31) and is fixedly connected to the top end of the threaded rod (32).

3. A closed solid feeding device according to claim 2, characterized in that: A push plate (34) is provided on the threaded sleeve on the outer peripheral side of the threaded rod (32), and the outer peripheral wall of the push plate (34) is in contact with the inner wall of the feed pipe (1).

4. A closed solid feeding device according to claim 3, characterized in that: The blocking mechanism (4) comprises a sealing plate (41), the sealing plate (41) being arranged at the bottom end of the feed pipe (1), the top side of the sealing plate (41) being arranged in an arcuate shape with the center bulging upward, and the top of the sealing plate (41) being inserted into the feed pipe (1) and in contact with the inner wall of the bottom opening of the feed pipe (1).

5. A closed solid feeding device according to claim 4, characterized in that: A square rod (42) having a T-shaped cross section is slidably provided at the center of the sealing plate (41), and the top end of the square rod (42) is fixedly connected to the bottom end of the threaded rod (32). A spring (43) is provided between the bottom side of the sealing plate (41) and the square rod (42), and the two ends of the spring (43) are respectively fixedly connected to the sealing plate (41) and the square rod (42).

6. A closed solid feeding device according to claim 5, characterized in that: The feeding mechanism (5) comprises a plurality of electrically controlled valves (51), which are arranged in a circular array on the top side of the push plate (34), and the discharge ends of the electrically controlled valves (51) penetrate the sealing plate (41) and are fixedly connected to the push plate (34), and the bottom ends of the electrically controlled valves (51) are coplanar with the bottom side of the push plate (34).

7. A closed solid feeding device according to claim 6, characterized in that: The top thread sleeve of the electric control valve (51) is provided with a transparent square tube (52), and the top thread sleeve of the transparent square tube (52) is provided with a soft tube (53). The transparent square tube (52) and the electric control valve (51) are both matched with the inner wall gap of the support plate (31) and the feed pipe (1), and an infrared transmitter and an infrared receiver (55) are relatively fixedly installed in the tube wall of the transparent square tube (52).

Images