A drum pneumatic door device

Abstract

A kind of drum pneumatic door device, including the drum with feeding opening, the outer wall of drum is fixed with two parallel tracks in circumferential direction, drum door is slidably installed in the inside of track, the inside of track is equipped with inflatable rubber strip, the outer wall of drum is fixed with pneumatic motor, pneumatic motor is configured to drive drum door to move along track between closed position and open position, and when drum door is located in closed position, feeding opening is closed by drum door, when drum door is located in open position, feeding opening is opened, through the cooperation of air pump, pneumatic motor, actuator and limit rod, through electric signal input, air pump carries out pumping or pumping operation, and through the cooperation of pneumatic motor and actuator, the opening and closing of drum door and the inflation and deflation of inflatable rubber strip are completed, without using manpower to open and close drum door, solve the problem of time-consuming and laborious of feeding operation personnel to open and close drum door.

Description

Technical Field

[0001] This utility model belongs to the field of leather equipment technology, specifically referring to a rotary drum pneumatic door device. Background Technology

[0002] The drum plays a crucial role in leather processing. Through the mechanical action generated by its rotation, such as beating and stirring, it promotes the uniform penetration of chemical materials into the leather, accelerates chemical reactions and physical changes, and thus realizes the tanning, dyeing, softening and other processes of leather, improving leather quality and production efficiency.

[0003] A drum typically consists of a cylinder with a feed inlet and a drum door that can close the feed inlet. In leather processing, the pre-impregnation, liming, tanning, and dyeing stages all require opening the drum door to add chemicals or inspect products. Currently, the drum door is opened manually, which is not only time-consuming and labor-intensive but also poses certain safety hazards. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a rotary drum pneumatic door device to at least partially solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model is as follows: A rotary drum pneumatic door device is proposed, including a rotary drum with a feeding port. The outer wall of the rotary drum is fixedly provided with two parallel tracks distributed in the circumferential direction. A rotary drum door is slidably installed on the inner side of the tracks. An inflatable rubber strip is provided on the inner side of the tracks. A pneumatic motor is fixedly provided on the outer wall of the rotary drum. The pneumatic motor is configured to drive the rotary drum door to move between a closed position and an open position along the tracks. When the rotary drum door is in the closed position, the feeding port is closed by the rotary drum door. When the rotary drum door is in the open position, the feeding port is opened.

[0006] Furthermore, an air pump is fixedly installed on the outer wall of the drum. The air pump is connected to the pneumatic motor through a first air valve. The air pump includes an air supply mode and an air extraction mode. In the air supply mode, the air pump drives the pneumatic motor to rotate in a first direction. In the air extraction mode, the air pump drives the pneumatic motor to rotate in a second direction. The first direction and the second direction are opposite.

[0007] Furthermore, the air pump is connected to the inflatable rubber strip through a second air valve. In the air supply mode, the air pump inflates the inflatable rubber strip, and in the air extraction mode, the air pump extracts air from the inflatable rubber strip.

[0008] Furthermore, the second air valve is equipped with a flow meter, and the second air valve is configured to stop when the flow meter detects that the flow rate has reached a preset value.

[0009] Furthermore, the electrical signal input of the air pump includes a first electrical signal and a second electrical signal. A limit rod is provided on the moving path of the drum door. The position state of the limit rod includes a first position and a second position. When the limit rod is in the first position, the first air valve is closed and the second air valve is open, and the pneumatic motor inflates the air-filled rubber strip. When the limit rod is in the second position, the first air valve is closed.

[0010] Furthermore, a first limiting plate and a second limiting plate are fixed at both ends of the rotary drum door. When the rotary drum door moves from the open position to the closed position, the first limiting plate moves the limiting rod to a first position. When the rotary drum door moves from the closed position to the open position, the second limiting plate moves the limiting rod to a second position.

[0011] Furthermore, the inflatable rubber strip is disposed inside the track on one side near the feeding port.

[0012] Furthermore, an actuator is fixedly installed on the track, and the output end of the pneumatic motor is connected to the actuator through a reducer. A rack is fixedly installed on the outer wall of the drum door corresponding to the actuator, and the output end of the actuator is provided with a gear that meshes with the rack.

[0013] Furthermore, a linkage shaft is provided between the two actuators, and the two actuators are synchronously linked through the linkage shaft.

[0014] Furthermore, the outer wall of the drum is provided with multiple reinforcing ribs. Beneficial effects

[0015] This utility model, through the cooperation of an air pump, a pneumatic motor, an actuator, and a limit rod, uses an electrical signal input to enable the air pump to perform pumping or evacuating operations. The pneumatic motor and actuator work together to open and close the drum door and inflate and deflate the air-filled rubber strips. This eliminates the need for manual opening and closing of the drum door, solving the problem of time-consuming and labor-intensive manual operation of the drum door during material feeding. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a rotary drum pneumatic door device proposed in an embodiment of the present utility model;

[0017] Figure 2 This is a front view structural diagram of a rotary drum pneumatic door device proposed in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a rotary drum pneumatic door device according to an embodiment of the present invention;

[0019] Figure 4 A partial cross-sectional structural diagram of the track, rotary drum door, and inflatable rubber strip is provided for an embodiment of this utility model.

[0020] Among them, 10 is the drum; 100 is the feeding port; 11 is the reinforcing rib; 20 is the track; 21 is the actuator; 22 is the linkage shaft; 30 is the drum door; 31 is the rack; 32 is the first limit plate; 33 is the second limit plate; 40 is the pneumatic motor; 41 is the reducer; 50 is the air pump; 60 is the limit rod; and 70 is the inflatable rubber strip.

[0021] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0023] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments.

[0024] like Figures 1-4 As shown, this utility model provides a rotary drum pneumatic door device, including a rotary drum 10 with a feeding port 100. In actual operation, the two shaft ends of the rotary drum 10 are equipped with a drive mechanism to drive the rotary drum 10 to rotate along the axis. The internal leather is tanned by throwing. The rotary drum 10 can be formed by splicing wooden boards, and multiple reinforcing ribs 11 are provided on the outer wall of the rotary drum 10 to ensure the overall strength of the rotary drum 10. The reinforcing ribs 11 are generally steel hoops. The wooden rotary drum 10 can give the leather a relatively gentle treatment during operation, which is conducive to maintaining the fullness and natural texture of the leather.

[0025] Furthermore, the outer wall of the drum 10 is fixedly provided with two parallel tracks 20 distributed along the circumferential direction. A drum door 30 is slidably installed on the inner side of the tracks 20. A pneumatic motor 40 is fixedly provided on the outer wall of the drum 10. The pneumatic motor 40 is configured to drive the drum door 30 to move between a closed position and an open position along the tracks 20. When the drum door 30 is in the closed position, the feeding port 100 is closed by the drum door 30. When the drum door 30 is in the open position, the feeding port 100 is opened.

[0026] In this way, the pneumatic motor 40 can drive the opening and closing of the drum door 30, avoiding manual operation of the drum door 30 and improving the convenience and safety of the operation of the drum door 30 on the drum 10.

[0027] In some embodiments, an actuator 21 is fixedly mounted on the track 20, the output end of the pneumatic motor 40 is connected to the actuator 21 through a reducer 41, a rack 31 is fixedly mounted on the outer wall of the drum door 30 corresponding to the actuator 21, the output end of the actuator 21 is provided with a gear that meshes with the rack 31, and a linkage shaft 22 is provided between the two actuators 21, and the two actuators 21 are synchronously linked through the linkage shaft 22.

[0028] Furthermore, an air pump 50 is fixedly installed on the outer wall of the drum 10. The air pump 50 is connected to the pneumatic motor 40 through a first air valve. The air pump 50 includes an air supply mode and an air extraction mode. In the air supply mode, the air pump 50 drives the pneumatic motor 40 to rotate in the first direction (forward). In the air extraction mode, the air pump 50 drives the pneumatic motor 40 to rotate in the second direction (reverse). The first direction and the second direction are opposite.

[0029] During operation, the air pump 50 provides airflow to the pneumatic motor 40. The output shaft of the pneumatic motor 40 drives the reducer 41 to operate. The output shaft of the reducer 41 then drives the gear on the actuator 21 to rotate in the set direction. When the gear on the output side of the actuator 21 rotates in the forward direction, the gear engages with the rack 31 on the outer wall of the drum door 30, causing the drum door 30 to move toward the closed position and close the feeding port 100. When the gear on the output side of the actuator 21 rotates in the reverse direction, the drum door 30 moves toward the open position and opens the feeding port 100.

[0030] like Figure 4 As shown, in order to ensure a good seal between the drum door 30 and the feeding port 100 after the drum door 30 reaches the outside of the feeding port 100, an inflatable rubber strip 70 is provided on the inner side of the track 20, and the inflatable rubber strip 70 is located inside the track 20 on the side close to the feeding port 100.

[0031] The air pump 50 is connected to the inflatable rubber strip 70 through the second air valve. In the air supply mode, the air pump 50 inflates the inflatable rubber strip 70, and in the air extraction mode, the air pump 50 extracts air from the inflatable rubber strip 70.

[0032] Furthermore, the second air valve is equipped with a flow meter, and the second air valve is configured to stop when the flow meter detects that the flow rate has reached a preset value.

[0033] In some embodiments, the electrical signal input of the air pump 50 includes a first electrical signal (door closing signal) and a second electrical signal (door opening signal), and a limit rod 60 is provided on the active path of the rotary drum door 30. The position state of the limit rod 60 includes a first position and a second position. When the limit rod 60 is in the first position, the first air valve is closed, the second air valve is open, and the pneumatic motor 40 inflates the air-filled rubber strip 70. When the limit rod 60 is in the second position, the first air valve is closed.

[0034] like Figure 1 As shown, the two ends of the rotary drum door 30 are respectively fixed with a first limiting plate 32 and a second limiting plate 33. When the rotary drum door 30 moves from the open position to the closed position, the first limiting plate 32 moves the limiting rod 60 to the first position. When the rotary drum door 30 moves from the closed position to the open position, the second limiting plate 33 moves the limiting rod 60 to the second position.

[0035] Based on the above, the usage procedure of this device will be explained as follows:

[0036] When the air pump 50 receives the first electrical signal (door closing signal), the first air valve at the output end of the air pump 50 opens. At this time, the air pump 50 delivers gas to the pneumatic motor 40 in the positive direction. With the cooperation of the reducer 41 and the actuator 21, the drum door 30 is driven to move from the open position to the closed position. When the drum door 30 reaches the closed position, the first limit plate 32 on the drum door 30 drives the limit rod 60 to the first position. At this time, under the action of the limit rod 60, the first air valve closes and the second air valve opens. The air pump 50 inflates the inflatable rubber strip 70 through the second air valve. When the inflation amount in the inflatable rubber strip 70 reaches the preset value, the second air valve closes, so that the drum door 30 and the feeding port 100 are sealed by the inflated inflatable rubber strip 70.

[0037] When the air pump 50 receives the second electrical signal (door opening signal), the air pump 50 performs a suction operation. First, the second air valve opens, and the air pump 50 extracts gas from the inflatable rubber strip 70. After the gas in the inflatable rubber strip 70 is emptied (the flow meter reaches the preset value), the second air valve closes. Then, the first air valve opens. With the cooperation of the reducer 41 and the actuator 21, the pneumatic motor 40 drives the drum door 30 to move from the closed position to the open position. When the drum door 30 reaches the open position, the second limit plate 33 on the drum door 30 drives the limit rod 60 to the second position, the first air valve closes, the pneumatic motor 40 stops, and the door opening operation is completed.

[0038] Thus, with the cooperation of air pump 50, pneumatic motor 40, actuator 21 and limit rod 60, the air pump 50 is made to perform pumping or evacuating operations through the input of electrical signals. And with the cooperation of pneumatic motor 40 and actuator 21, the opening and closing of the drum door 30 and the inflation and deflation of the air-filled rubber strip 70 are completed. The drum door 30 is opened and closed manually, which solves the problem of time-consuming and labor-intensive manual opening and closing of the drum door 30 by the feeding operator.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A rotary drum pneumatic door device, characterized in that, The device includes a drum (10) with a feeding port (100). The outer wall of the drum (10) is fixedly provided with two parallel tracks (20) distributed in the circumferential direction. A drum door (30) is slidably installed on the inner side of the tracks (20). An inflatable rubber strip (70) is provided on the inner side of the tracks (20). A pneumatic motor (40) is fixedly provided on the outer wall of the drum (10). The pneumatic motor (40) is configured to drive the drum door (30) to move between a closed position and an open position along the tracks (20). When the drum door (30) is in the closed position, the feeding port (100) is closed by the drum door (30). When the drum door (30) is in the open position, the feeding port (100) is opened.

2. The rotary drum pneumatic door device according to claim 1, characterized in that: An air pump (50) is fixedly installed on the outer wall of the drum (10). The air pump (50) is connected to the pneumatic motor (40) through a first air valve. The air pump (50) includes an air supply mode and an air extraction mode. In the air supply mode, the air pump (50) drives the pneumatic motor (40) to rotate in a first direction. In the air extraction mode, the air pump (50) drives the pneumatic motor (40) to rotate in a second direction. The first direction and the second direction are opposite.

3. The rotary drum pneumatic door device according to claim 2, characterized in that: The air pump (50) is connected to the inflatable rubber strip (70) through the second air valve. In the air supply mode, the air pump (50) inflates the inflatable rubber strip (70) with air. In the air extraction mode, the air pump (50) extracts air from the inflatable rubber strip (70).

4. The rotary drum pneumatic door device according to claim 3, characterized in that: The second air valve is equipped with a flow meter, and the second air valve is configured to stop when the flow meter detects that the flow rate has reached a preset value.

5. The rotary drum pneumatic door device according to claim 4, characterized in that: The electrical signal input of the air pump (50) includes a first electrical signal and a second electrical signal. A limit rod (60) is provided on the moving path of the drum door (30). The position state of the limit rod (60) includes a first position and a second position. When the limit rod (60) is in the first position, the first air valve is closed and the second air valve is open. The pneumatic motor (40) inflates the air-filled rubber strip (70). When the limit rod (60) is in the second position, the first air valve is closed.

6. The rotary drum pneumatic door device according to claim 5, characterized in that: The drum door (30) is fixed with a first limiting plate (32) and a second limiting plate (33) at both ends. When the drum door (30) moves from the open position to the closed position, the first limiting plate (32) moves the limiting rod (60) to the first position. When the drum door (30) moves from the closed position to the open position, the second limiting plate (33) moves the limiting rod (60) to the second position.

7. The rotary drum pneumatic door device according to claim 1, characterized in that: The inflatable rubber strip (70) is disposed inside the track (20) on the side near the feeding port (100).

8. The rotary drum pneumatic door device according to claim 1, characterized in that: An actuator (21) is fixedly installed on the track (20). The output end of the pneumatic motor (40) is connected to the actuator (21) through a reducer (41). A rack (31) is fixedly installed on the outer wall of the drum door (30) corresponding to the actuator (21). The output end of the actuator (21) is provided with a gear that meshes with the rack (31).

9. The rotary drum pneumatic door device according to claim 8, characterized in that: A linkage shaft (22) is provided between the two actuators (21), and the two actuators (21) are synchronously linked through the linkage shaft (22).

10. The rotary drum pneumatic door device according to claim 1, characterized in that: The outer wall of the drum (10) is provided with multiple reinforcing ribs (11).

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