Small solid feeding mechanism

Abstract

The utility model discloses a small solid feeding mechanism which comprises a storage barrel and an electric screw mechanism, a sealing head is arranged at the bottom end of a screw in the electric screw mechanism and located at a discharging port of the storage barrel, the electric screw mechanism drives discharging, and a lifting mechanism drives the electric screw mechanism to move up and down. The sealing head synchronously moves to open or seal the discharge port, the whole structure is simplified, assembling and forming are easy, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feeding device technical field, concretely relates to a small solid feeding mechanism. BACKGROUND

[0002] The common solid feeding mechanism is like the cooperation type of storage cylinder and electric screw mechanism, the screw in the electric screw mechanism is in the cavity of the storage cylinder, and the material in the cavity is gradually discharged from the discharge port through the rotation of the screw. UTILITY MODEL CONTENTS

[0003] To solve at least one of the above technical defects, the utility model provides the following technical scheme:

[0004] The utility model discloses a small solid feeding mechanism, including storage cylinder, electric screw mechanism, the screw in the electric screw mechanism is in the cavity of the storage cylinder, and the electric screw mechanism transports the material to the discharge port of the storage cylinder, still include lifting mechanism, sealing head, the mobile end of lifting mechanism is connected with the electric screw mechanism, and the bottom end of the screw in the electric screw mechanism is provided with sealing head and sealing head is in the discharge port of the storage cylinder, and sealing head has different shaft diameters in the axial direction, and in the process that lifting mechanism drives the up and down movement of electric screw mechanism, sealing head cooperates with the discharge port cavity wall of the storage cylinder with different shaft diameter parts to seal or open the discharge port.

[0005] When using, if the electric screw is driven to move down by the lifting mechanism, the sealing head is moved down synchronously, and the sealing head cooperates with the discharge port cavity wall with the small-diameter shaft body segment, the space between the small-diameter shaft body segment and the discharge port cavity wall is used for discharging, and the discharge port is in an open state, and the electric screw mechanism can discharge the material in the cavity of the storage cylinder from the discharge port.

[0006] When using, if the electric screw is driven to move up by the lifting mechanism, the sealing head is moved up synchronously, and the sealing head cooperates with the discharge port cavity wall with the large-diameter shaft body segment, the large-diameter shaft body segment is attached to the discharge port cavity wall, and the discharge port is in a sealed state.

[0007] Further, the top of the storage cylinder is provided with a mounting port, the mounting port is provided with a sealing seat, the mounting port is sealed by the sealing seat, a through hole is formed in the sealing seat in the longitudinal direction, and the screw passes through the through hole and is connected with the driving mechanism in the electric screw mechanism, the mounting port is convenient for installing the screw in the cylinder cavity, and the rod body of the screw is slidingly connected with the through hole in the process that the lifting mechanism moves the electric screw mechanism up and down.

[0008] Further, the through hole is provided with a sealing ring, and the sealing ring seals the gap between the screw wall and the hole wall of the through hole, and the sealing ring helps to improve the sealing performance.

[0009] Further, the sealing seat comprises an upper part and a lower part, the hole cavity of the lower part is a stepped cavity with a large hole diameter, a sealing ring and a spring are arranged in the cavity, the bottom of the spring is provided with a sealing ring, the top of the spring abuts against the upper part, the screw rod of the electric screw mechanism passes through the sealing ring, and the extrusion of the spring helps to improve the sealing performance.

[0010] Further, the top of the storage cylinder is provided with a feeding opening, the feeding opening is provided with a cover for sealing, and the cover seals the feeding opening to avoid the influence of external moisture on the material in the cylinder cavity.

[0011] Further, the storage cylinder comprises a longitudinal cavity and an inclined cavity, the lower part of the inclined cavity is communicated with the longitudinal cavity, the top of the inclined cavity is provided with a feeding opening, the bottom of the longitudinal cavity is provided with a discharging opening, and the screw rod of the electric screw mechanism is located at the longitudinal cavity, so that feeding and discharging are facilitated.

[0012] Further, the sealing head is a stepped shaft with a large shaft diameter, the shaft body segment with a large shaft diameter is located at the lower part, and the shaft body segment with a large shaft diameter is attached to the cavity wall of the discharging opening during the upward movement to seal the discharging opening, so that the time of the shaft body segment with a small shaft diameter in the cylinder cavity contacting the outside is reduced, and the material in the cylinder cavity is prevented from being greatly affected.

[0013] For the lifting mechanism, a lead screw type, a gear rack type, a telescopic cylinder and the like can be used. Preferably, the lifting mechanism is a telescopic cylinder type, a sliding seat is arranged at the moving end of the lifting mechanism, and a driving mechanism of the electric screw mechanism is arranged on the sliding seat, so that the cost is reduced, and the telescopic cylinder is small in size and convenient to install and fix.

[0014] Further, the bottom of the storage cylinder is provided with a discharging opening, and discharging is facilitated.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model designs the composition of the solid feeding mechanism, drives the discharging by the electric screw mechanism, drives the electric screw mechanism to move up and down by the lifting mechanism, and synchronously moves the sealing head to open or seal the discharging opening, so that the structure is simplified as a whole, easy to assemble and form, and the cost is reduced. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor under the premise of the drawings.

[0018] Figure 1 is a structural schematic diagram of the solid feeding mechanism in Example 1;

[0019] Figure 2 is a structural schematic diagram of the solid feeding mechanism in Example 1;

[0020] In the drawings, reference numerals are:

[0021] 1, storage cylinder; 2, vertical column; 3, electric screw mechanism; 4, sealing head; 5, discharge port; 6, sealing seat; 7, sealing ring; 8, end cover; 9, spring; 10, lifting mechanism; 11, longitudinal chamber; 12, oblique chamber; 31, screw; 32, driving mechanism; 61, upper part; 62, lower part. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and specific examples.

[0023] Example 1

[0024] As shown in Figure 1 , Figure 2 , the solid feeding mechanism in this example includes a storage cylinder 1, an electric screw mechanism 3, a lifting mechanism 10, and a sealing head 4. The screw 31 in the electric screw mechanism 3 is located in the cavity of the storage cylinder 1, and the electric screw mechanism 3 is used to transport materials to the discharge port of the storage cylinder 1. The moving end of the lifting mechanism 10 is connected to the electric screw mechanism 3 to adjust the longitudinal position of the electric screw mechanism 3. The bottom end of the screw 31 in the electric screw mechanism 3 is provided with the sealing head 4, and the sealing head 4 is located at the discharge port 5 of the storage cylinder 1.

[0025] In this example, the sealing head 4 has different shaft diameters in the axial direction, such as a common stepped shaft type. During the upward and downward movement of the electric screw mechanism 3 driven by the lifting mechanism 10, the sealing head 4 cooperates with the cavity wall of the discharge port 5 at the bottom of the storage cylinder 1 to seal or open the discharge port 5 with different shaft diameter parts. Preferably, the shaft body segment with a large shaft diameter of the sealing head 4 is located at the bottom, and in the normal state, the shaft body segment with a large shaft diameter is in contact with the cavity wall of the discharge port to seal the discharge port, and the shaft body segment with a small shaft diameter is located in the cylinder cavity. When discharging, the lifting mechanism 10 moves the electric screw mechanism 3 downward, and then moves the sealing head 4 downward, and the shaft body segment with a small shaft diameter moves downward, and the gap between the shaft wall of the shaft body segment and the cavity wall of the discharge port is used for discharging. This arrangement helps to reduce the contact time of the shaft body segment with a small shaft diameter with the outside world and reduce the influence of external factors on the materials in the cylinder cavity. For the joint of the sealing head and the screw, it is preferred to be integrally formed, and of course the sealing head can also be independently formed and fixed with the screw. The sealing head can also have a split structure, and the shaft body segments with different shaft diameters are formed separately, and part of the shaft body segments can be integrally formed on the screw.

[0026] For the lifting mechanism, such as the common telescopic cylinder, of course, can also choose screw displacement, gear rack, etc., the lifting mechanism 10 is fixed on the column 2, of course, can also be directly fixed according to the needs of the corresponding installation site. In order to facilitate the installation of the electric screw mechanism, the sliding seat can be installed at the moving end of the lifting mechanism 10. The sliding seat is in sliding cooperation with the column, and the corresponding part of the electric screw mechanism, such as the driving mechanism 32, is fixed on the sliding seat. The output end of the driving mechanism is connected with the end of the screw.

[0027] In order to facilitate the installation of the mechanism in the second storage cylinder, an installation port is formed at the top of the storage cylinder 1 in this example. The sealing seat 6 is arranged at the installation port to seal the installation port. The sealing seat 6 is sealed by the sealing seat 6. A through hole is formed in the longitudinal direction on the sealing seat 6, and the rod body of the screw 31 passes through the through hole and is connected with the driving mechanism 32 in the electric screw mechanism. The driving mechanism is, for example, a motor. The driving mechanism 32 is connected with the moving end of the lifting mechanism 10.

[0028] A sealing ring 7 can also be added, such as the sealing ring 7 arranged in the through hole cavity or the orifice. Preferably, as shown in Figure 2 The lower part 62 of the sealing seat is stepped, and the spring 9 and the sealing ring 7 are arranged in the cavity with a large hole diameter. The sealing ring 7 is arranged between the bottom of the spring 9 and the end face of the cavity. The top of the spring 9 is connected with the upper part 61. The screw 31 in the electric screw mechanism 3 passes through the sealing ring 7, which helps to improve the sealing performance under the extrusion of the spring.

[0029] In order to facilitate feeding, a feeding port is added at the top of the storage cylinder 140 in this example. The end cover 8 is installed to seal the feeding port. The material can be continuously added to the cylinder cavity through the feeding port.

[0030] In order to better discharge the material, the cylinder cavity of the storage cylinder 1 includes a longitudinally arranged cavity, i.e. a longitudinal cavity 11, and an inclined cavity 12 extending obliquely relative to the longitudinal cavity. The inclined cavity 12 is connected with the longitudinal cavity 11 at the lower part. The inclined cavity 12 is formed with a feeding port at the corresponding top wall. The material added from the feeding port gradually enters the longitudinal cavity.

[0031] The longitudinal cavity 11 is formed with an installation port at the top wall, and the longitudinal cavity 11 is formed with a discharge port 5 at the bottom. The screw 31 in the electric screw mechanism 3 is in the longitudinal cavity 11. The material slid from the inclined cavity 12 is gradually discharged from the discharge port 5 through the screw 31.

[0032] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A small solid feeding mechanism, comprising a storage cylinder (1) and an electric screw mechanism (3), wherein the screw (31) of the electric screw mechanism (3) is located inside the cavity of the storage cylinder (1), and the electric screw mechanism (3) conveys material to the outlet (5) of the storage cylinder (1), characterized in that, It also includes a lifting mechanism (10) and a sealing head (4). The moving end of the lifting mechanism (10) is connected to the electric screw mechanism (3). The sealing head (4) is provided at the bottom end of the screw (31) in the electric screw mechanism (3) and the sealing head (4) is located at the outlet (5) of the storage cylinder (1). The sealing head (4) has different shaft diameters in the axial direction. During the process of the lifting mechanism (10) driving the electric screw mechanism (3) to move up and down, the sealing head (4) forms a cooperation with the cavity wall of the outlet (5) of the storage cylinder (1) with different shaft diameter parts to seal or open the outlet (5).

2. The small solid feeding mechanism as described in claim 1, characterized in that: An installation port is provided at the top of the storage cylinder (1), and a sealing seat (6) is provided at the installation port to seal the installation port. A through hole is formed on the sealing seat (6) along the longitudinal direction, and the screw (31) passes through the through hole and is connected to the drive mechanism (32) in the electric screw mechanism (3).

3. The small solid feeding mechanism as described in claim 2, characterized in that: A sealing ring (7) is provided at the through hole to seal the gap between the peripheral wall of the screw (31) and the wall of the through hole.

4. A small solid feeding mechanism as described in claim 3, characterized in that: The sealing seat (6) includes an upper part (61) and a lower part (62). The cavity of the lower part (62) is stepped and has a large diameter. A sealing ring (7) and a spring (9) are installed inside the cavity. The bottom of the spring (9) is provided with a sealing ring (7) and the top of the spring (9) abuts against the upper part (61). The screw (31) in the electric screw mechanism (3) passes through the sealing ring (7).

5. A small solid feeding mechanism as described in claim 1, characterized in that: A feeding port is provided at the top of the storage cylinder (1), and an end cap (8) for sealing is provided at the feeding port.

6. A small solid feeding mechanism as described in claim 4, characterized in that: The storage cylinder (1) includes a longitudinal chamber (11) and an inclined chamber (12). The inclined chamber (12) is connected to the longitudinal chamber (11) at least at its lower part. A feeding port is provided at the top of the inclined chamber (12), and a discharge port (5) is provided at the bottom of the longitudinal chamber (11). The screw (31) in the electric screw mechanism (3) is located in the longitudinal chamber (11).

7. A small solid feeding mechanism as described in claim 1, characterized in that: The sealing head (4) is a stepped shaft type with the shaft section with a large shaft diameter located at the bottom.

8. A small solid feeding mechanism as described in claim 1, characterized in that: The lifting mechanism (10) is a telescopic cylinder type. A slide is provided at the moving end of the lifting mechanism (10), and a drive mechanism (32) of the electric screw mechanism (3) is provided on the slide.

9. A small solid feeding mechanism as described in claim 1, characterized in that: The storage cylinder (1) is provided with a discharge port (5) at the bottom.

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