CN213474196U - Automatic opening and closing mechanism for tail end and middle blanking port of blanking channel and blanking channel - Google Patents

Automatic opening and closing mechanism for tail end and middle blanking port of blanking channel and blanking channel Download PDF

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Publication number
CN213474196U
CN213474196U CN202021079597.0U CN202021079597U CN213474196U CN 213474196 U CN213474196 U CN 213474196U CN 202021079597 U CN202021079597 U CN 202021079597U CN 213474196 U CN213474196 U CN 213474196U
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blanking
rod
tail end
channel body
door
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钱杭松
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Jiangsu Fuchang Machinery Equipment Co ltd
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Jiangsu Fuchang Machinery Equipment Co ltd
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Abstract

An automatic opening and closing mechanism for a tail end blanking port and a middle blanking port of a blanking channel and the blanking channel comprise a channel body, the tail end blanking port, the middle blanking port and a feeding port; the channel body is inclined, the feed inlet is arranged at the head end of the channel body, the tail end blanking port is arranged at the tail end of the channel body, and the feed inlet is higher than the tail end blanking port; the middle part blanking mouth has 1 at least, and the position of middle part blanking mouth is between feed inlet and terminal blanking mouth, and opens on the bottom surface of passageway body. The tail end and the middle blanking port are of linkage structures such as a swing rod, unpowered automatic closing or opening of the blanking port is achieved only by means of gravity of the swing rod and thrust of the swing rod caused by gravity of materials, namely the blanking port is automatically closed when the materials reach a pile height, and the blanking port is automatically opened when the materials are lower than the pile height.

Description

Automatic opening and closing mechanism for tail end and middle blanking port of blanking channel and blanking channel
Technical Field
The utility model belongs to the technical field of the storage pay-off, specifically a blanking passageway of unpowered automatic control blanking mouth.
Background
In the prior art, a granary can adopt a blanking pipeline such as a chute and the like to realize grain feeding of the granary, as described in Chinese patents CN210537566U and CN 210556889U. In practice, it is found that when the granary is about to be filled, the grain stacking convex hulls also appear at the positions of the blanking ports of the corresponding blanking pipelines on the top surface of the grain pile. If the convex hull is serious, the difficulty and the operability of manual leveling are directly influenced.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a new blanking passageway and blanking mouth switch structure.
Because the fire hazard of the granary is high, the power generation device is adopted in the granary carefully and cautiously, and the use of an internal combustion engine, a motor and the like is avoided as much as possible. The utility model provides a:
A. a tail end blanking port automatic switch mechanism of a blanking channel is characterized in that a channel body is inclined, and the head end of the channel body is higher than the tail end; the tail end blanking port is located at the tail end of the channel body, and the head end of the channel body is connected with the feed port.
The feeding port is connected with a feeding door capable of being opened and closed, the feeding door is connected with a feeding door opening and closing mechanism, the tail end blanking port is connected with a feeding door opening and closing control mechanism, and the feeding door opening and closing control mechanism is linked with the feeding port opening and closing mechanism; the end blanking port is open;
the linkage mechanism between the feed inlet opening and closing control mechanism and the feed inlet opening and closing mechanism is a connecting rod; the connecting rod is positioned outside the channel body; the device also comprises at least two rotating supporting rods; the rotary supporting rods are parallel to each other, the top ends of the rotary supporting rods are rotatably connected to the connecting rod, the tail ends of the rotary supporting rods are rotatably connected to the channel body, and the connecting line of the tail ends of the rotary supporting rods is parallel to the connecting rod;
the feeding door switch control mechanism comprises a first swing rod, a main body of the first swing rod is rotatably connected to the tail end blanking port, and the axis of the first swing rod is vertical to the ground under the state of not being subjected to external force; the tail end of the first swing rod is rotatably connected to the head end of the connecting rod, and the head end of the first swing rod points to the ground;
the feeding door is rotatably connected in the channel body through a first rotating shaft; one end of the first rotating shaft extends out of the channel body;
the feed port opening and closing mechanism comprises a first push-pull rod, a first spring telescopic rod and a first push-pull rod which are all positioned outside the channel body; the head end of the first door pushing rod is fixedly connected with a first rotating shaft; the tail end of the first door pushing rod is rotatably connected to the head end of the first spring telescopic rod; the tail end of the first spring telescopic rod is rotatably connected to the channel body; setting the distance from the first rotating shaft to the rotating shaft at the tail end of the first spring telescopic rod to be S1, setting the sum of the length of the first sliding door and the length of the first spring telescopic rod to be S2 in a small potential energy state, and setting S1 to be smaller than S2;
the rotating connecting ends of the first push-pull rod and the first spring telescopic rod are connected to the tail end of the first push-pull rod; the head end of the first push-pull rod is rotatably connected to the tail end of the connecting rod;
in the state 1, the head end of the first swing rod is in an external force state in the horizontal direction, the axis of the first swing rod is perpendicular to the ground, the connecting rod pulls the first push-pull rod, the rotating connecting end of the first push-pull rod and the first spring telescopic rod faces the direction of the tail end blanking port, and the feeding door is opened;
and in the state 2, the head end of the first swing rod is in an external force state in the horizontal direction, the head end of the first swing rod deviates in the reverse direction towards the feeding port, the tail end of the first swing rod pushes the connecting rod, the connecting rod pushes the first push-pull rod, the rotation connecting end of the first push-pull rod and the first spring telescopic rod is far away from the direction of the tail end blanking port, and the feeding port is closed.
The head end of the first swing rod is connected with a baffle.
The tail end of the first push-pull rod is provided with a waist-shaped hole; the rotating shaft between the first door pushing rod and the first spring telescopic rod is arranged in the waist-shaped hole.
The principle of the technical scheme is that,
the state 1 is a normal blanking state, and a feed inlet of the whole blanking channel is in an open state.
When the blanking below the tail end blanking port is piled into a convex peak shape, the state is changed to a state 2, materials with the downward sliding tendency (due to the gravity of the materials) have horizontal force on the pushing baffle, the first swing rod is pushed away from the vertical state, and the feeding gate is gradually closed until the feeding gate is completely closed. Therefore, the height of each blanking point stack is basically the same, and the work load of the leveling bin is reduced.
If no baffle is provided, the force on the swing link in the horizontal direction is small, and although the effect can be achieved, the degree of final closing of the feed gate is not significant enough.
The rotating shaft of the first spring telescopic rod is fixed, and in the rotating process, the path of the head end of the first spring telescopic rod is an arc. However, S1 is smaller than S2, which causes the first telescopic spring rod to be compressed and store potential energy when the first push-pull rod drives the first telescopic spring rod and the first door-pushing rod to rotate. When the first door pushing rod and the first spring telescopic rod are in the same straight line (critical position), the elastic potential energy is maximum. When the door passes through the critical position, the elastic potential energy is released, and the first spring telescopic rod pushes the first door pushing rod to rotate. In the process, the design of the waist-shaped hole enables the spring to actively apply force without depending on the force from the circumferential direction of the first swing rod. The open/close state of the feed gate is stabilized.
B. An automatic opening and closing mechanism for a middle blanking port of a blanking channel is characterized in that a channel body is inclined, and the head end of the channel body is higher than the tail end; the end blanking mouth is located the end of passageway body, and the head end of passageway body connects the feed inlet, and middle part blanking mouth has 1 at least, and the position of middle part blanking mouth is between feed inlet and end blanking mouth, and opens on the bottom surface of passageway body.
The middle blanking opening is rotatably connected with a blanking door capable of being opened and closed, the blanking door is connected with a blanking door opening and closing mechanism, and the blanking door opening and closing mechanism is connected with a blanking door opening and closing control mechanism; the height of the blanking door is not more than the height of the radial section of the channel body;
the blanking door is rotatably connected in the channel body through a second rotating shaft; one end of the second rotating shaft extends out of the channel body;
the blanking door switch control mechanism comprises a second swing rod, and the top end of the second swing rod is rotatably connected to the channel body; under the state of not being subjected to external force, the axis of the second swing rod is vertical to the ground, and the bottom end of the second swing rod points to the ground;
the blanking port opening and closing mechanism comprises a second push-pull rod, a second spring telescopic rod and a second push-pull rod which are all positioned outside the channel body;
the head end of the second door pushing rod is fixedly connected with a second rotating shaft;
the tail end of the second door pushing rod is rotatably connected to the head end of the second spring telescopic rod; the tail end of the second spring telescopic rod is rotatably connected to the channel body; the rotating connecting ends of the second push-pull rod and the second spring telescopic rod are connected to the tail end of the second push-pull rod; the head end of the second push-pull rod is rotatably connected to the second swing rod and is arranged below the bottom surface of the channel body;
setting the distance from the second rotating shaft to the rotating shaft at the tail end of the second spring telescopic rod to be D1, setting the sum of the length of the second sliding door and the length of the second spring telescopic rod to be D2 in a small potential energy state, and setting D1 to be smaller than D2;
in the state 3, the bottom end of the second swing rod is in a state of not being subjected to external force in the horizontal direction, the axis of the second swing rod is perpendicular to the ground, the second swing rod pushes the head end of the second push-pull rod, the tail end of the second push-pull rod pushes the second push-pull rod, the blanking door is erected in the channel body, and a gap is formed between the top end of the blanking door and the top of the channel body;
and in the state 4, under the state that the bottom end of the second swing rod is subjected to external force in the horizontal direction, the head end of the second swing rod deviates from one side facing the feeding hole, the second swing rod pulls the head end of the second push-pull rod, the tail end of the second push-pull rod pulls the second door-pushing rod, and the blanking door falls on the blanking hole.
The head end of the second swing rod is connected with a baffle.
The tail end of the second push-pull rod is provided with a waist-shaped hole; the rotating shaft between the second door pushing rod and the second spring telescopic rod is arranged in the waist-shaped hole.
Similar to the principle of the technical scheme A, the principle of the scheme is as follows:
the state 4 is a normal blanking state, and the middle blanking port is in an open state.
When the blanking below the middle blanking port is piled into a convex peak shape, the state is changed to a state 4, the materials with the downward sliding tendency (due to the gravity) have horizontal force on the pushing baffle, the second swing rod is pushed away from the vertical state, and the blanking door is gradually closed until the blanking door is completely closed. Therefore, the height of the blanking pile is not too high, and the difficulty of leveling is increased.
If no baffle is provided, the force in the horizontal direction on the second swing link is small, and although the effect can be achieved, the degree of closing the feed gate is not significant enough finally.
The rotating shaft of the second spring telescopic rod is fixed, and in the rotating process, the path of the head end of the second spring telescopic rod is an arc. However, D1 is smaller than D2, which causes the second telescopic spring rod to be compressed and store potential energy when the second push-pull rod drives the second telescopic spring rod and the second door-pushing rod to rotate. When the second door pushing rod and the second spring telescopic rod are in the same straight line (critical position), the elastic potential energy is maximum. When the door passes through the critical position, the elastic potential energy is released, and the second spring telescopic rod pushes the second door pushing rod to rotate. In the process, the design of the waist-shaped hole enables the spring to actively apply force without depending on the force from the circumferential direction of the second swing rod. The open/close state of the blanking door is stabilized.
C. A blanking channel of an unpowered automatic control blanking port comprises a channel body, a tail end blanking port, a middle blanking port and a feeding port; the channel body is inclined, the feed inlet is arranged at the head end of the channel body, the tail end blanking port is arranged at the tail end of the channel body, and the feed inlet is higher than the tail end blanking port; the middle part blanking mouth has 1 at least, and the position of middle part blanking mouth is between feed inlet and terminal blanking mouth, and opens on the bottom surface of passageway body. The automatic opening and closing mechanism of the blanking port at the tail end of the channel body is a scheme A; the automatic opening and closing mechanism of the middle blanking port of the channel body is a scheme B.
The utility model discloses a linkage structures such as pendulum rod only rely on the thrust to the pendulum rod that pendulum rod gravity and material gravity cause, realize unpowered self-closing or open the blanking mouth, self-closing blanking mouth when the material reaches the heap height promptly, open the blanking mouth automatically when the material is less than the heap height.
Drawings
FIG. 1 is a schematic view of a blanking channel of the unpowered automatic control blanking port of this example (indicating that the first and second swing links are in a vertical and inclined state, respectively);
FIG. 2a is a schematic view of the position of the end blanking opening (the arrow indicates the blanking direction) in this example;
FIG. 2b is a schematic view of the linkage of this example;
FIG. 2c is a schematic view of the feed gap of this example;
FIG. 3a is a schematic view of a feed gap closed state;
FIG. 3b is a schematic view showing the state where the feed opening is opened
FIG. 3c is a schematic view of the critical position of the first door pushing rod and the first spring retractable rod;
FIG. 4 is a bottom view of the lower middle drop;
fig. 5 is a schematic view of the open and closed states of the blanking door (two striker plates 5 for preventing material scattering are also shown in the figure);
FIG. 6 is a schematic view of the position of the second door pushing rod with the blanking door in an open and closed state;
FIG. 7 is a schematic view of a drop port;
FIG. 8a is a schematic view of the opening of the drop;
FIG. 8b is a schematic view of the blanking port in a closed position;
FIG. 8c is a schematic view of the critical position of the second door pushing rod and the second spring extension rod;
FIG. 9 is a schematic view of the first/second swing link;
in the figure: the feeding device comprises a channel body 1, a tail end blanking port 2, a feeding port 3, a middle blanking port 4, a material baffle 5, a feeding gate 6, a connecting rod 7, a rotating supporting rod 8, a first swing rod 9, a first rotating shaft 10, a first door pushing rod 11, a first spring telescopic rod 12, a first push-pull rod 13, a blanking gate 14, a second swing rod 15, a second rotating shaft 16, a second door pushing rod 17, a second spring telescopic rod 18, a second push-pull rod 19, a baffle 20, a kidney-shaped hole 21 and a material pile 22.
Detailed Description
The technical solution is further illustrated by the following examples:
referring to fig. 1, a channel body of an unpowered automatic control blanking port comprises a channel body 1, a tail end blanking port 2, a middle blanking port 4 and a feeding port 3; the channel body 1 is inclined, the feed inlet 3 is arranged at the head end of the channel body 1, the tail end blanking port 2 is arranged at the tail end of the channel body 1, and the feed inlet 3 is higher than the tail end blanking port 2; the number of the middle blanking ports 4 is 2, and the middle blanking ports 4 are positioned between the feed port 3 and the tail end blanking ports 2 and are arranged on the bottom surface of the channel body 1.
Referring to fig. 2a to 2c, the automatic opening and closing mechanism of the end blanking port of the blanking channel used in this embodiment is:
the feed port 3 is connected with a feed door 6 capable of being opened and closed, the feed door 6 is connected with a feed door switch mechanism, the tail end blanking port 2 is connected with a feed door switch control mechanism, and the feed door switch control mechanism is linked with the feed port switch mechanism; the end blanking port 2 is open;
the linkage mechanism between the feed inlet opening and closing control mechanism and the feed inlet opening and closing mechanism is a connecting rod 7; the connecting rod 7 is positioned outside the channel body 1; also comprises two rotary supporting rods 8; the rotary supporting rods 8 are parallel to each other, the top ends of the rotary supporting rods are rotatably connected to the connecting rod 7, the tail ends of the rotary supporting rods are rotatably connected to the channel body 1, and the connecting line of the tail ends of the rotary supporting rods 8 is parallel to the connecting rod 7; in this example, the first swing link 9 also functions to rotate the support rod 8.
The switch control mechanism of the feeding door 6 comprises a first swing rod 9, the main body of the first swing rod 9 is rotatably connected to the tail end blanking port 2, and the axis of the first swing rod 9 is vertical to the ground under the state of not being subjected to external force; the tail end of the first swing rod 9 is rotatably connected to the head end of the connecting rod 7, and the head end of the first swing rod 9 points to the ground;
the feeding door 6 is rotatably connected in the channel body 1 through a first rotating shaft 10; one end of the first rotating shaft 10 extends out of the channel body 1;
the feed inlet opening and closing mechanism comprises a first push-pull rod 11, a first spring telescopic rod 12 and a first push-pull rod 13 which are all positioned outside the channel body 1; the head end of the first door pushing rod 11 is fixedly connected with the first rotating shaft 10; the tail end of the first door pushing rod 11 is rotatably connected with the head end of a first spring telescopic rod 12; the tail end of the first spring telescopic rod 12 is rotatably connected to the channel body 1; setting the distance from the first rotating shaft 10 to the rotating shaft at the tail end of the first spring telescopic rod 12 to be S1, setting the sum of the length of the first sliding door and the length of the first spring telescopic rod 12 to be S2 in a small potential energy state, and setting the S1 to be smaller than S2;
the rotating connection ends of the first push-pull rod 11 and the first spring telescopic rod 12 are connected to the tail end of the first push-pull rod 13; the head end of the first push-pull rod 13 is rotatably connected to the tail end of the connecting rod 7;
referring again to FIGS. 3 a-3 c:
in the state 1, the head end of the first swing rod 9 is in an external force state in the horizontal direction, the axis of the first swing rod 9 is perpendicular to the ground, the connecting rod 7 pulls the first push-pull rod 13, the rotating connecting end of the first push-pull rod 11 and the first spring telescopic rod 12 faces the direction of the tail end blanking port 2, and the feeding door 6 is opened;
in the state 2, the head end of the first swing rod 9 is under the external force state in the horizontal direction, the head end of the first swing rod 9 deviates the reverse direction towards the feeding port 3, the tail end of the first swing rod 9 pushes the connecting rod 7, the connecting rod 7 pushes the first push-pull rod 13, the rotating connecting end of the first push-pull rod 11 and the first spring telescopic rod 12 is far away from the direction of the tail end blanking port 2, and the feeding door 6 is closed.
As shown in fig. 9, a baffle 20 is connected to the head end of the first swing link 9.
The tail end of the first push-pull rod 13 is provided with a waist-shaped hole 21; the rotating shaft between the first door pushing rod 11 and the first spring telescopic rod 12 is arranged in the kidney-shaped hole.
Referring to fig. 4 to 7, the automatic opening and closing mechanism of the middle blanking port 4 of the blanking channel used in this embodiment is:
the middle blanking opening 4 is rotatably connected with a blanking door 14 capable of being opened and closed, the blanking door 4 is connected with a blanking door opening and closing mechanism, and the blanking door opening and closing mechanism is connected with a blanking door opening and closing control mechanism; the height of the blanking door is not more than the height of the radial section of the channel body 1;
the blanking door 14 is rotatably connected in the channel body 1 through a second rotating shaft 16; one end of the second rotating shaft 16 extends out of the channel body 1;
the blanking door switch control mechanism comprises a second swing rod 15, and the top end of the second swing rod 15 is rotatably connected to the channel body 1; under the state of no external force, the axis of the second swing rod 15 is vertical to the ground, and the bottom end of the second swing rod 15 points to the ground;
the blanking port opening and closing mechanism comprises a second push-pull rod 17, a second spring telescopic rod 18 and a second push-pull rod 19 which are all positioned outside the channel body 1;
the head end of the second door pushing rod 17 is fixedly connected with a second rotating shaft 16;
the tail end of the second door pushing rod 17 is rotatably connected with the head end of a second spring expansion rod 18; the tail end of the second spring telescopic rod 18 is rotatably connected to the channel body 1; the rotary connecting ends of the second push-pull rod 17 and the second spring telescopic rod 18 are connected to the tail end of a second push-pull rod 19; the head end of the second push-pull rod 19 is rotatably connected to the second swing rod 15 and is arranged below the bottom surface of the channel body;
setting the distance from the second rotating shaft 16 to the rotating shaft at the tail end of the second spring telescopic rod 18 to be D1, setting the sum of the length of the second sliding door and the length of the second spring telescopic rod 18 in a small potential energy state to be D2, and setting D1 to be smaller than D2;
referring again to FIGS. 8 a-8 c:
in the state 3, under the state that the bottom end of the second swing rod 15 is not subjected to external force in the horizontal direction, the axis of the second swing rod 15 is perpendicular to the ground, the second swing rod 15 pushes the head end of the second push-pull rod 19, the tail end of the second push-pull rod 19 pushes the second push-pull rod 17, the blanking door 4 is erected in the channel body 1, and a gap is formed between the top end of the blanking door 14 and the top of the channel body 1;
in the state 4, under the state that the bottom end of the second swing rod 15 is subjected to external force in the horizontal direction, the head end of the second swing rod 15 deviates from one side facing the feed port 3, the second swing rod 15 pulls the head end of the second push-pull rod 19, the tail end of the second push-pull rod 19 pulls the second push-pull rod 17, and the blanking door 14 falls on the blanking port.
The head end of the second swing link 15 is connected with a baffle 20.
The tail end of the second push-pull rod 19 is provided with a waist-shaped hole 21; the rotating shaft between the second door pushing rod 17 and the second spring telescopic rod 18 is arranged in the kidney-shaped hole 21.
The channel body of this example may be a chute.

Claims (7)

1. A tail end blanking port automatic switch mechanism of a blanking channel is characterized in that a channel body is inclined, and the head end of the channel body is higher than the tail end; the tail end blanking port is positioned at the tail end of the channel body, and the head end of the channel body is connected with the feed port, and the device is characterized in that
The feeding port is connected with a feeding door capable of being opened and closed, the feeding door is connected with a feeding door opening and closing mechanism, the tail end blanking port is connected with a feeding door opening and closing control mechanism, and the feeding door opening and closing control mechanism is linked with the feeding port opening and closing mechanism; the end blanking port is open;
the linkage mechanism between the feed inlet opening and closing control mechanism and the feed inlet opening and closing mechanism is a connecting rod; the connecting rod is positioned outside the channel body; the device also comprises at least two rotating supporting rods; the rotary supporting rods are parallel to each other, the top ends of the rotary supporting rods are rotatably connected to the connecting rod, the tail ends of the rotary supporting rods are rotatably connected to the channel body, and the connecting line of the tail ends of the rotary supporting rods is parallel to the connecting rod;
the feeding door switch control mechanism comprises a first swing rod, a main body of the first swing rod is rotatably connected to the tail end blanking port, and the axis of the first swing rod is vertical to the ground under the state of not being subjected to external force; the tail end of the first swing rod is rotatably connected to the head end of the connecting rod, and the head end of the first swing rod points to the ground;
the feeding door is rotatably connected in the channel body through a first rotating shaft; one end of the first rotating shaft extends out of the channel body;
the feed port opening and closing mechanism comprises a first push-pull rod, a first spring telescopic rod and a first push-pull rod which are all positioned outside the channel body; the head end of the first door pushing rod is fixedly connected with a first rotating shaft; the tail end of the first door pushing rod is rotatably connected to the head end of the first spring telescopic rod; the tail end of the first spring telescopic rod is rotatably connected to the channel body; setting the distance from the first rotating shaft to the rotating shaft at the tail end of the first spring telescopic rod to be S1, setting the sum of the length of the first sliding door and the length of the first spring telescopic rod to be S2 in a small potential energy state, and setting S1 to be smaller than S2;
the rotating connecting ends of the first push-pull rod and the first spring telescopic rod are connected to the tail end of the first push-pull rod; the head end of the first push-pull rod is rotatably connected to the tail end of the connecting rod;
the head end of the first swing rod is under the state of not being subjected to external force in the horizontal direction, the axis of the first swing rod is vertical to the ground, the connecting rod pulls the first push-pull rod, the rotating connecting end of the first push-pull rod and the first spring telescopic rod faces the direction of the tail end blanking port, and the feeding door is opened;
the head end of the first swing rod is under the external force state of receiving the horizontal direction, and the head end of the first swing rod is skew towards the reversal of feed inlet, and the end of first swing rod pushes away the connecting rod, and the connecting rod pushes away first push-and-pull rod, and the rotation link end of first push-and-pull rod and first spring telescopic link keeps away from the direction of terminal blanking mouth, and the feed inlet door is closed.
2. The automatic switch mechanism of the tail blanking port of the blanking channel as claimed in claim 1, wherein the head end of the first swing link is connected with a baffle.
3. The automatic opening and closing mechanism of the tail end blanking port of the blanking channel as claimed in claim 1, wherein the tail end of the first push-pull rod is provided with a waist-shaped hole; the rotating shaft between the first door pushing rod and the first spring telescopic rod is arranged in the waist-shaped hole.
4. An automatic opening and closing mechanism for a middle blanking port of a blanking channel is characterized in that a channel body is inclined, and the head end of the channel body is higher than the tail end; the tail end blanking port is positioned at the tail end of the channel body, the head end of the channel body is connected with the feed port, at least 1 middle blanking port is arranged, the middle blanking port is positioned between the feed port and the tail end blanking port and is arranged on the bottom surface of the channel body, and the device is characterized in that
The middle blanking opening is rotatably connected with a blanking door capable of being opened and closed, the blanking door is connected with a blanking door opening and closing mechanism, and the blanking door opening and closing mechanism is connected with a blanking door opening and closing control mechanism; the height of the blanking door is not more than the height of the radial section of the channel body;
the blanking door is rotatably connected in the channel body through a second rotating shaft; one end of the second rotating shaft extends out of the channel body;
the blanking door switch control mechanism comprises a second swing rod, and the top end of the second swing rod is rotatably connected to the channel body; under the state of not being subjected to external force, the axis of the second swing rod is vertical to the ground, and the bottom end of the second swing rod points to the ground;
the blanking port opening and closing mechanism comprises a second push-pull rod, a second spring telescopic rod and a second push-pull rod which are all positioned outside the channel body;
the head end of the second door pushing rod is fixedly connected with a second rotating shaft;
the tail end of the second door pushing rod is rotatably connected to the head end of the second spring telescopic rod; the tail end of the second spring telescopic rod is rotatably connected to the channel body; the rotating connecting ends of the second push-pull rod and the second spring telescopic rod are connected to the tail end of the second push-pull rod; the head end of the second push-pull rod is rotatably connected to the second swing rod and is arranged below the bottom surface of the channel body;
setting the distance from the second rotating shaft to the rotating shaft at the tail end of the second spring telescopic rod to be D1, setting the sum of the length of the second sliding door and the length of the second spring telescopic rod to be D2 in a small potential energy state, and setting D1 to be smaller than D2;
the bottom end of the second swing rod is under the state of not being subjected to external force in the horizontal direction, the axis of the second swing rod is vertical to the ground, the second swing rod pushes the head end of the second push-pull rod, the tail end of the second push-pull rod pushes the second push-pull rod, the blanking door is erected in the channel body, and a gap is formed between the top end of the blanking door and the top of the channel body;
the bottom end of the second swing rod is under the state of being subjected to external force in the horizontal direction, the head end of the second swing rod deviates from one side facing the feeding hole, the second swing rod pulls the head end of the second push-pull rod, the tail end of the second push-pull rod pulls the second door-pushing rod, and the blanking door falls on the blanking hole.
5. The automatic opening and closing mechanism of the middle blanking opening of the blanking channel as claimed in claim 4, wherein the head end of the second swing link is connected with a baffle.
6. The automatic opening and closing mechanism of the middle blanking opening of the blanking channel as claimed in claim 4, wherein the end of the second push-pull rod is provided with a waist-shaped hole; the rotating shaft between the second door pushing rod and the second spring telescopic rod is arranged in the waist-shaped hole.
7. A blanking channel of an unpowered automatic control blanking port comprises a channel body, a tail end blanking port, a middle blanking port and a feeding port; the channel body is inclined, the feed inlet is arranged at the head end of the channel body, the tail end blanking port is arranged at the tail end of the channel body, and the feed inlet is higher than the tail end blanking port; the number of the middle blanking ports is at least 1, the middle blanking port is positioned between the feed port and the tail end blanking port and is arranged on the bottom surface of the channel body; it is characterized in that
The automatic opening and closing mechanism of the tail end blanking port of the channel body is the automatic opening and closing mechanism of the tail end blanking port of the blanking channel in claim 1, 2 or 3;
the automatic opening and closing mechanism of the middle blanking port of the channel body is the automatic opening and closing mechanism of the middle blanking port of the blanking channel in claim 4, 5 or 6.
CN202021079597.0U 2020-06-12 2020-06-12 Automatic opening and closing mechanism for tail end and middle blanking port of blanking channel and blanking channel Active CN213474196U (en)

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Application Number Priority Date Filing Date Title
CN202021079597.0U CN213474196U (en) 2020-06-12 2020-06-12 Automatic opening and closing mechanism for tail end and middle blanking port of blanking channel and blanking channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021079597.0U CN213474196U (en) 2020-06-12 2020-06-12 Automatic opening and closing mechanism for tail end and middle blanking port of blanking channel and blanking channel

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CN213474196U true CN213474196U (en) 2021-06-18

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