Double-conveying quantitative feeding equipment

Abstract

The utility model belongs to the field of white spirit raw grain conveying equipment, and particularly provides double-conveying quantitative feeding equipment which comprises a conveyor groove body, a feeding cylinder and a partition plate are arranged in the middle of the conveyor groove body, a conveying shaft is arranged in the conveyor groove body, and two sets of spiral blades opposite in direction are arranged on the conveying shaft. The two sets of spiral blades are arranged on the two sides of the partition plate respectively, discharging ports are formed in the two ends, away from the feeding cylinder, of the conveyor groove body, a distribution plate is arranged in the feeding cylinder, connecting rods are arranged at the two ends of the distribution plate, sliding grooves allowing the connecting rods to penetrate through are formed in the side wall of the feeding cylinder, and nuts are arranged at the ends of one set of connecting rods and matched with a reciprocating lead screw. The two ends of the reciprocating lead screw are rotationally installed on a lead screw support, and a driving motor for driving the reciprocating lead screw is arranged on the lead screw support. According to the equipment, the number of discharging points is increased through two-way conveying, the conveying capacity is doubled while the size meets quantitative conveying, and therefore the conveying amount is increased.

Description

Technical Field

[0001] The utility model relates to the field of white liquor raw grain conveying equipment, in particular to a double-conveying quantitative feeding device. Background Technique

[0002] When the production volume of a white liquor enterprise is huge and the production efficiency requirement is high, multiple production lines will be arranged to produce simultaneously. Taking wheat as an example, at this time, it is necessary to discharge a certain amount of materials from the silo storing wheat and put them into production. Due to the need for quantitative discharging, a screw conveyor is commonly used in the white liquor production line for quantitative conveying, which has the advantages of high stability and accurate quantification. However, for the current screw conveyors on the market, when meeting the requirement of accurate quantification, the size of the screw trough body is not large and there is only one discharge point, resulting in a far-from-enough conveying volume. Moreover, increasing the size of the screw trough body will cause insufficient quantification accuracy. In addition, the existing screw conveyors use full screw blades, that is, the screw blades are distributed on the entire conveying shaft, which will cause serious crushing at the outlet and is prone to congestion. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a double-conveying quantitative feeding device, which increases the number of discharge points and can achieve large-flow quantitative conveying.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a double-conveying quantitative feeding device, including a conveyor trough body. An inlet cylinder is provided in the exact middle of the conveyor trough body. A conveying shaft is arranged in the conveyor trough body, and the conveying shaft is driven by a driving mechanism. A partition plate is arranged in the conveyor trough body corresponding to the inlet cylinder. The conveying shaft is rotatably installed on the partition plate and the end of the conveyor trough body. Two sets of spiral blades with opposite directions are arranged on the conveying shaft. The two sets of spiral blades with opposite directions are respectively arranged on both sides of the partition plate. Discharge ports are arranged at both ends of the conveyor trough body far away from the inlet cylinder. A distribution plate is arranged in the inlet cylinder. Connecting rods are arranged at both ends of the distribution plate. A sliding groove for the connecting rod to pass through is arranged on the side wall of the inlet cylinder. A nut is arranged at the end of one set of connecting rods, and the nut is matched with a reciprocating lead screw. Both ends of the reciprocating lead screw are rotatably installed on a lead screw support. A driving motor for driving the reciprocating lead screw is arranged on the lead screw support.

[0005] In a preferred solution, the cross-section of the distribution plate is a triangular structure with the tip facing upwards.

[0006] In a preferred solution, the driving mechanism is a reduction motor.

[0007] In a preferred solution, a blade-free blanking space is arranged between the end of the spiral blade close to the discharge port and the end of the conveyor trough body, and the discharge port corresponds to the blade-free blanking space.

[0008] In a preferred solution, the distance of the blade-free blanking space is 100 - 200 mm.

[0009] The dual-conveyor quantitative feeding device provided by the utility model has the following beneficial effects:

[0010] 1. When materials such as wheat enter the feeding cylinder through the feeding chute pipe, the reciprocating lead screw rotates to make the distribution plate move reciprocally, achieving the purpose of uniform material distribution. After the material is evenly distributed, it enters the conveyor troughs on both sides of the partition plate. At this time, while the conveyor trough meets the requirements for suitable quantitative conveying, due to the spiral blades being arranged in a mirror-image spiral blade arrangement, it is equivalent to two screw conveyors with opposite conveying directions, doubling the conveying capacity.

[0011] 2. There is a blade-free blanking space between one end of the spiral blade close to the discharge port and the end of the conveyor trough body, that is, the spiral blade is cancelled on the conveying shaft in the blade-free blanking space area. By setting the blade-free blanking space, when materials such as wheat are sent to the discharge port position, they will not be driven by the spiral blade to continue running. Since the spiral blade keeps rotating, the subsequent wheat will be conveyed to the blade-free area, and the wheat that stayed here before will be pushed forward by the wheat at the back, and so on. The wheat will be pushed into the discharge port, rather than being conveyed and squeezed by the spiral blade. This can reduce the breakage of wheat and blockage at the discharge end. Description of the Drawings

[0012] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the installation top view of the partition plate;

[0015] Figure 3 is the installation structural schematic diagram of the reciprocating lead screw;

[0016] In the figure: conveyor trough body 1, discharge port 101, blade-free blanking space 102, feeding cylinder 2, sliding groove 201, conveying shaft 3, driving mechanism 4, partition plate 5, spiral blade 6, distribution plate 7, connecting rod 8, nut 9, reciprocating lead screw 10, lead screw support 11, driving motor 12. Specific Embodiments

[0017] As Figures 1 to 3As shown in the figure, a double-conveyor quantitative feeding device includes a conveyor trough 1. The conveyor trough 1 is the main device that provides stable support for the entire device. In the exact middle of the conveyor trough 1, there is a feeding cylinder 2. Inside the conveyor trough 1, there is a conveying shaft 3, and the conveying shaft 3 is driven by a driving mechanism 4. In this embodiment, the driving mechanism 4 is a reduction motor, and the output shaft of the reduction motor is connected to the conveying shaft 3 through a coupling. Alternatively, the driving mechanism 4 can be selected as a motor and a transmission mechanism. Specifically, the transmission mechanism can be selected as a belt transmission mechanism or a chain transmission mechanism, and the motor drives the conveying shaft 3 through the transmission mechanism.

[0018] A partition plate 5 is arranged corresponding to the feeding cylinder 2 inside the conveyor trough 1. The conveying shaft 3 is rotatably installed on the partition plate 5 and the end of the conveyor trough 1 through bearings. There are two groups of spiral blades 6 with opposite directions on the conveying shaft 3. The two groups of spiral blades 6 with opposite directions are respectively arranged on both sides of the partition plate 5. The two groups of spiral blades 6 are mirror-symmetrically distributed relative to the partition plate 5. The structure of the spiral blades 6 and the conveyor trough 1 is the same as that of the existing screw conveyor.

[0019] At both ends of the conveyor trough 1 far from the feeding cylinder 2, there are discharge ports 101, that is, two groups of discharge ports are set. Inside the feeding cylinder 2, there is a distribution plate 7. The distribution plate 7 is arranged perpendicular to the conveyor trough 1. At both ends of the distribution plate 7, there are connecting rods 8. On the side wall of the feeding cylinder 2, there are sliding grooves 201 for the connecting rods 8 to pass through. The connecting rods 8 can move along the sliding grooves 201. At the end of one group of connecting rods 8, there is a nut 9. The nut 9 cooperates with a reciprocating lead screw 10. Both ends of the reciprocating lead screw 10 are rotatably installed on a lead screw support 11. On the lead screw support 11, there is a driving motor 12 for driving the reciprocating lead screw 10. The driving motor 12 can be selected as a reduction motor.

[0020] The reciprocating motion of the distribution plate 7 is realized by the cooperation of the nut 9 and the reciprocating lead screw 10. It can also be replaced by using a cylinder to drive the distribution plate 7.

[0021] In this embodiment, the cross-section of the distribution plate 7 is a triangular structure with the tip facing upwards, which helps the material to slide from the top of the distribution plate 7 to both sides.

[0022] Between one end of the spiral blade 6 close to the discharge port 101 and the end of the conveyor trough 1, there is a blade-free blanking space 102, that is, the spiral blade is cancelled on the conveying shaft 3 in the area of the blade-free blanking space 102. In this embodiment, the distance of the blade-free blanking space 102 is 100 - 200 mm, and the discharge port 101 corresponds to the blade-free blanking space 102.

[0023] By setting up a bladeless blanking space 102, taking the conveying of wheat as an example, when the wheat is sent to the position of the discharge port 101, it will not be driven by the spiral blade 6 to continue running. Since the spiral blade 6 keeps running, the subsequent wheat is all conveyed to the bladeless area, and the wheat that stayed here before will be pushed forward by the wheat at the back. By analogy, in the last 100 - 200 mm distance, the wheat will be pushed into the discharge port 101 instead of being conveyed and extruded by the spiral blade 6, which can reduce the breakage of wheat and the blockage at the discharge end.

[0024] The working principle of this equipment is as follows: When the material enters the feed cylinder 2 through the feed chute, due to the good fluidity of materials such as wheat, by rotating the reciprocating lead screw 10, the distribution plate 7 makes a reciprocating motion to achieve the purpose of uniform material distribution. The evenly distributed materials enter the conveyor trough 1 on both sides of the partition plate 5. At this time, the size of the conveyor trough 1 is small, which is suitable for quantitative conveying. After the materials evenly enter the troughs corresponding to the spiral blades 6 on both sides, because the spiral blades 6 adopt the layout of mirror-image spiral blades, it is equivalent to two spiral conveyors with opposite conveying directions, doubling the conveying capacity. The materials are driven by the rotation of the two groups of spiral blades and move towards the discharge ports 101 on both sides.

[0025] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations to the present invention. The embodiments and the features in the embodiments in this application can be arbitrarily combined with each other without conflict. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A double-conveyor quantitative feeding device, comprising a conveyor trough body (1), characterized in that: A feed cylinder (2) is provided at the exact middle of the conveyor trough body (1). A conveying shaft (3) is provided in the conveyor trough body (1), and the conveying shaft (3) is driven by a driving mechanism (4). A partition plate (5) is arranged in the conveyor trough body (1) corresponding to the feed cylinder (2). The conveying shaft (3) is rotatably installed at the partition plate (5) and the ends of the conveyor trough body (1). Two sets of spiral blades (6) with opposite directions are provided on the conveying shaft (3). The two sets of spiral blades (6) with opposite directions are respectively arranged on both sides of the partition plate (5). Discharge ports (101) are provided at both ends of the conveyor trough body (1) away from the feed cylinder (2). A distribution plate (7) is provided in the feed cylinder (2). Connecting rods (8) are provided at both ends of the distribution plate (7). A sliding groove (201) for the connecting rods (8) to pass through is provided on the side wall of the feed cylinder (2). A nut (9) is provided at the end of one set of connecting rods (8). The nut (9) cooperates with a reciprocating lead screw (10). Both ends of the reciprocating lead screw (10) are rotatably installed on a lead screw support (11), and a driving motor (12) for driving the reciprocating lead screw (10) is provided on the lead screw support (11).

2. The double-conveyor quantitative feeding device according to claim 1, characterized in that: The cross-section of the distribution plate (7) is a triangular structure with the tip facing upwards.

3. A double-conveyor quantitative feeding device according to claim 1, characterized in that: The driving mechanism (4) is a reduction motor.

4. A double-conveyor quantitative feeding device according to claim 1, characterized in that: A blade-free blanking space (102) is provided between one end of the spiral blade (6) close to the discharge port (101) and the end of the conveyor trough body (1), and the discharge port (101) is arranged corresponding to the blade-free blanking space (102).

5. A double-conveyor quantitative feeding device according to claim 4, characterized in that: The distance of the blade-free blanking space (102) is 100 - 200 mm.

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