Double-arm-supported pneumatic emptying door section

Abstract

The utility model provides a double-arm support pneumatic emptying door section, which comprises a door bucket, an emptying door section, an emptying door assembly and an air breathing port, the door bucket is arranged in the emptying door section, the emptying door assembly is arranged at the bottom of the door bucket, and the air breathing port is arranged on the side wall of one side of the emptying door section; the discharging door assembly comprises a door plate, a door shaft, nylon sleeves and a rotating air cylinder, the two ends of the door shaft are rotationally arranged on the side wall of the discharging door section, the mounting end of the rotating air cylinder is arranged outside one side of the discharging door section, the output end of the rotating air cylinder extends into the discharging door section and is connected with one end of the door shaft, and the nylon sleeves are arranged at the two ends of the door shaft in a sleeving mode. The door plate is arranged on the door shaft. A double-arm supporting structure and a non-metal elastic supporting form are adopted, mechanical fatigue caused by reciprocating stress actions to parts is effectively relieved, the service life of each part of the door section is effectively prolonged, the stability of opening and closing actions of the door section is improved, and the overall stability of equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum feeding machines, and particularly relates to a double-arm supported pneumatic discharging door section. Background Technique

[0002] The hopper of a vacuum feeding machine consists of a compressed air back-blowing device, a feeding barrel section, a pneumatic discharging door device, etc. The pneumatic discharging door device takes a rotary cylinder, a door shaft, and a door panel as the main moving components. The cylinder drives the door shaft to rotate, and the door shaft drives the door panel to cooperate with the inner hopper to realize the opening and closing actions, ensuring the normal feeding and discharging actions of the vacuum feeding machine.

[0003] Both pneumatic vacuum feeding machines and electric vacuum feeding machines are equipped with pneumatic discharging door devices in their conventional hoppers. The structural form is generally a rotary cylinder cooperating with a cantilever shaft, and the cantilever shaft is supported unilaterally. If there is an imbalance in the internal components, it will cause noise and failures. In a vacuum feeding machine, problems such as broken shafts and offset sealing failures will occur, resulting in a reduction in the overall stability of the equipment and a low service life of the door shaft. Content of the Utility Model

[0004] In view of this, the utility model aims to propose a double-arm supported pneumatic discharging door section to solve the problems of imbalance generated during the rotation of components, such as broken shafts, offset sealing failures, noise, failures, reduced overall stability, and low service life of the door shaft.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A double-arm supported pneumatic discharging door section includes a hopper, a discharging door section, a discharging door assembly, and an air breather. The hopper is arranged inside the discharging door section, the discharging door assembly is arranged at the bottom of the hopper, and the air breather is arranged on one side wall of the discharging door section;

[0007] The discharging door assembly includes a door panel, a door shaft, a nylon sleeve, and a rotary cylinder. Both ends of the door shaft are rotatably arranged on the side wall of the discharging door section. The installation end of the rotary cylinder is arranged outside one side of the discharging door section, and the output end of the rotary cylinder extends into the discharging door section and is connected to one end of the door shaft. The nylon sleeve is sleeved on both ends of the door shaft, and the door panel is arranged on the door shaft.

[0008] Further, the nylon sleeve includes a support-end nylon sleeve and a transmission-end nylon sleeve. The support-end nylon sleeve is sleeved on the end of the door shaft away from the rotary cylinder, and the transmission-end nylon sleeve is sleeved on the end of the door shaft close to the rotary cylinder.

[0009] The door hinge has a double-end support structure. A support-end nylon sleeve is added on one side to increase the absorption of minute deformation of the parts, with a certain elastic absorption capacity. During the dynamic rotation process, the nylon sleeves on both sides can be evenly stressed, alleviating the elastic deformation under the load, greatly improving its rotation stability, reducing the radial forces on the door hinge and the rotary cylinder, dispersing more of the radial force to the nylon sleeves on both sides, effectively extending the service life of each component, and increasing the smoothness of the door opening and closing rotation.

[0010] Further, the bottom of the door panel corresponds to that of the door bucket. When the door panel is in the closed state, the door panel can seal the bottom of the door bucket.

[0011] Further, above the discharge door section, there are a top cover, a first housing, and a second housing arranged in sequence from top to bottom. Below the discharge door section, there is a third housing. The top cover and the first housing, the first housing and the second housing, the second housing and the discharge door section, and the discharge door section and the third housing are all connected by clamps.

[0012] Further, a compressed air back-blowing device is provided on the top cover.

[0013] Further, a filter is provided inside the first housing.

[0014] Further, a feeding pipe is provided on one side of the second housing.

[0015] Compared with the prior art, the double-arm supported pneumatic discharge door section of the present utility model has the following advantages:

[0016] (1) The present utility model uses a double-arm support structure on the vacuum feeder, solving the problem that the door panel, rotary cylinder, and rotating shaft that are frequently opened and closed are extremely prone to mechanical fatigue, extending the service life of the pneumatic rotary discharge door section, increasing the smoothness and reliability of the operation of the pneumatic rotary discharge door section, enhancing the stability of powder conveying, and reducing the maintenance cost.

[0017] (2) The double-support door hinge of the present utility model will evenly distribute the acting force to both sides and absorb it by relying on the elasticity of the support nylon sleeve, avoiding mechanical fatigue caused by the rotation of the door hinge and maintaining the balance of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is the overall schematic diagram of the vacuum feeder of the present utility model;

[0020] Figure 2Schematic side view of the discharging door section described in the embodiment of the present utility model;

[0021] Figure 3 Schematic top view of the discharging door section described in the embodiment of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Door bucket; 2. Discharging door section; 3. Air breathing port; 4. Door panel; 5. Door shaft; 6. Rotary cylinder; 7. Nylon sleeve at the support end; 8. Nylon sleeve at the transmission end; 9. Top cover; 10. First housing; 11. Second housing; 12. Third housing; 13. Clamp; 14. Compressed air back-blowing device; 15. Feeding pipe. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0027] The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] As Figures 1 to 3As shown in the figure, a pneumatic discharging door section with double-arm support includes a door bucket 1, a discharging door section 2, a discharging door assembly, and an air breathing port 3. The door bucket 1 is arranged inside the discharging door section 2, the discharging door assembly is arranged at the bottom of the door bucket 1, and the air breathing port 3 is arranged on one side wall of the discharging door section 2.

[0029] The discharging door assembly includes a door panel 4, a door shaft 5, a nylon sleeve, and a rotary cylinder 6. Both ends of the door shaft 5 are rotatably arranged on the side wall of the discharging door section 2. The installation end of the rotary cylinder 6 is arranged outside one side of the discharging door section 2, and the output end of the rotary cylinder 6 extends into the discharging door section 2 and is connected to one end of the door shaft 5. The nylon sleeve is sleeved on both ends of the door shaft 5, and the door panel 4 is arranged on the door shaft 5.

[0030] The nylon sleeve includes a support-end nylon sleeve 7 and a drive-end nylon sleeve 8. The support-end nylon sleeve 7 is sleeved on the end of the door shaft 5 far from the rotary cylinder 6, and the drive-end nylon sleeve 8 is sleeved on the end of the door shaft 5 close to the rotary cylinder 6.

[0031] The door shaft 5 has a double-end support structure. A support-end nylon sleeve is added on one side to increase the absorption of the micro-deformation of the parts, with a certain elastic absorption capacity. During the dynamic rotation process, the nylon sleeves on both sides can be evenly stressed, alleviating the elastic deformation under the load, greatly improving its rotation stability, reducing the radial forces on the door shaft 5 and the rotary cylinder 6, dispersing more of the radial force to the nylon sleeves on both sides, effectively extending the service life of each component, and increasing the smoothness of the rotation of opening and closing the door.

[0032] The door panel 4 corresponds to the bottom of the door bucket 1. When the door panel 4 is in the closed state, the door panel 4 can seal the bottom of the door bucket 1.

[0033] Above the discharging door section 2, there are a top cover 9, a first housing 10, and a second housing 11 arranged in sequence from top to bottom. Below the discharging door section 2, there is a third housing 12. Between the top cover 9 and the first housing 10, between the first housing 10 and the second housing 11, between the second housing 11 and the discharging door section 2, and between the discharging door section 2 and the third housing 12, they are all connected by a clamp 13.

[0034] The top cover 9 is provided with a compressed air back-blowing device 14.

[0035] A filter is arranged inside the first housing 10.

[0036] One side of the second housing 11 is provided with a feeding pipe 15.

[0037] In a specific implementation, the compressed air back-blowing device 14 is used to create a vacuum in the second housing 11. Under the vacuum suction, the powder continuously enters the second housing 11 from the feeding pipe 15. When a certain material level is reached, the compressed air back-blowing device 14 is turned off, and the rotary cylinder 6 is activated to rotate the door shaft, thereby driving the door panel to rotate downward, so that the powder in the second housing falls into the third housing. After the discharging is completed, the rotary cylinder 6 rotates in the reverse direction to rotate the door shaft in the reverse direction, thereby driving the door panel to rotate upward and sealing the bottom of the hopper 1. By repeating this operation, powder conveying is achieved.

[0038] After the material suction is completed, the powder above the door panel 4 exerts a downward pressure load on the door panel 4. When the door panel 4 is opened, there is a certain downward acting force on the door panel 4. The double-support door shaft 5 will evenly distribute the acting force to both sides and absorb it by relying on the elasticity of the support nylon sleeve, avoiding mechanical fatigue caused by the rotation of the door shaft 5 and maintaining the balance of the overall operation. After the discharging is completed, the door panel 4 is closed and vacuum is introduced. The vacuum will form an upward suction force on the door panel 4, and the soft connection between the door panel 4 and the hopper 1 is squeezed to generate a small displacement, which is offset by the nylon sleeves at both ends, increasing the service life of the discharging door section 2, enhancing the working stability of the vacuum feeder, and reducing the maintenance cost.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double-arm supported pneumatic discharging door section, characterized in that: It includes an air lock (1), a discharge door section (2), a discharge door assembly, and an air breather (3). The air lock (1) is arranged inside the discharge door section (2), the discharge door assembly is arranged at the bottom of the air lock (1), and the air breather (3) is arranged on one side wall of the discharge door section (2). The discharge door assembly includes a door panel (4), a door shaft (5), a nylon sleeve, and a rotary cylinder (6). Both ends of the door shaft (5) are rotatably arranged on the side walls of the discharge door section (2). The mounting end of the rotary cylinder (6) is arranged outside one side of the discharge door section (2), and the output end of the rotary cylinder (6) extends into the discharge door section (2) and is connected to one end of the door shaft (5). The nylon sleeve is sleeved on both ends of the door shaft (5), and the door panel (4) is arranged on the door shaft (5).

2. The double-arm supported pneumatic discharging door section according to claim 1, wherein: The nylon sleeve includes a support end nylon sleeve (7) and a transmission end nylon sleeve (8). The support end nylon sleeve (7) is sleeved on the end of the door shaft (5) away from the rotary cylinder (6), and the transmission end nylon sleeve (8) is sleeved on the end of the door shaft (5) close to the rotary cylinder (6).

3. The double-arm supported pneumatic discharging door section according to claim 1, characterized in that: The door panel (4) corresponds to the bottom of the air lock (1).

4. The double-arm supported pneumatic discharging door section according to claim 1, wherein: Above the discharge door section (2), there are a top cover (9), a first housing (10), and a second housing (11) arranged in sequence from top to bottom. Below the discharge door section (2), there is a third housing (12). Between the top cover (9) and the first housing (10), between the first housing (10) and the second housing (11), between the second housing (11) and the discharge door section (2), and between the discharge door section (2) and the third housing (12), they are all connected by clamps (13).

5. The double-arm supported pneumatic discharging door section according to claim 4, wherein: The top cover (9) is provided with a compressed air back-blowing device (14).

6. The double-arm supported pneumatic discharging door section according to claim 4, wherein: A filter is arranged inside the first housing (10).

7. The double-arm supported pneumatic discharging door section according to claim 4, characterized in that: One side of the second housing (11) is provided with a feeding pipe (15).

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