A pre-press feed structure that is easy to observe

Abstract

This utility model relates to the field of pulp processing technology and discloses a pre-press feed structure that facilitates observation. It includes a pre-press body, with a feed hopper fixedly connected to the upper end of the pre-press body. A switching motor is fixedly mounted on the outer surface of the upper end of the feed hopper. One end of the output shaft of the switching motor penetrates the inner surface of the feed hopper, and a rotating drum is fixedly connected to the output shaft of the switching motor. This pre-press feed structure, by incorporating a rotating drum driven by a switching motor and a removable sliding box, creatively guides a portion of the material flow from the enclosed feed hopper to the outside. Operators can remove the sliding box after only a brief pause in feeding to directly observe the material's condition, and even perform operations such as touching or sampling. This allows for accurate judgment of material characteristics and precise fault location, effectively solving the problems of blind spots and misleading information in traditional observation windows.

Description

Technical Field

[0001] This utility model relates to the field of pulp processing technology, specifically to a pre-press feed structure that is easy to observe. Background Technology

[0002] In the production processes of pulp, food, and chemical industries, screw conveyors, extrusion or pre-pressing equipment are key equipment. The feeding process of these devices is crucial. The flow state of the material, the uniformity of its distribution, and the presence of agglomeration or bridging (bulging) directly determine the stability of the entire production process and the quality of the final product. Currently, operators rely heavily on observation windows fixed to the silo wall to monitor the material status inside the feed silo. This traditional observation method has significant limitations. First, the observation window provides a fixed, single side view with a narrow field of vision, making it impossible to see the true situation in the central area of ​​the feed silo or near the outlet, resulting in blind spots. Second, when the material is only slightly hanging inside the observation window rather than directly facing it, it may be mistakenly perceived as normal feeding when there is actually a blockage inside, which is misleading. More importantly, when it is necessary to check the characteristics of the material (such as humidity and fiber length) or troubleshoot the cause of the malfunction, the machine must be completely stopped and the equipment emptied before personnel can enter or use tools to explore. This process is not only time-consuming and labor-intensive, affecting production efficiency, but also fails to obtain first-hand information on the material status while the equipment is "running," leading to inaccurate problem judgment. Therefore, the existing fixed observation window mode can only provide extremely limited and potentially distorted surface information, which cannot meet the needs of in-depth, comprehensive, and real-time diagnosis of the feeding process. In production practice, there is an urgent need for a feeding structure that allows operators to guide part of the material flow to a position that is easy to observe and detect from multiple angles when only briefly pausing the feeding process, thereby achieving true "easy observation" and providing direct basis for process optimization and rapid troubleshooting. Utility Model Content

[0003] The purpose of this invention is to provide a pre-press feed structure that is easy to observe, in order to solve the problems mentioned in the background art, such as blind spots in the existing observation window and the inability to perform in-depth sampling and real-time diagnosis of materials while the equipment is running.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pre-press feed structure that is easy to observe, comprising a pre-press body, a feed bin fixedly connected to the upper end of the pre-press body, a switching motor fixedly installed on the outer surface of the upper end of the feed bin, one end of the output shaft of the switching motor penetrating the inner surface of the feed bin, and a rotating drum fixedly connected to the output shaft of the switching motor, a sliding slide box installed inside the rotating drum, sliding sealing plates installed inside both ends of the slide box, and a pull rod fixedly installed on the outer surface of one end of the sealing plate, a sliding slide rod installed on the outer surface of the feed bin, and a limit block fixedly connected to one end of the slide rod, a guide rail and a clearance groove opened on one side of the outer surface of the feed bin, and a sliding groove opened on the outer surface of one end of the rotating drum; A positioning port is provided on the outer surface of one end of the rotating drum, and an installation block is fixedly provided on the outer surface of one end of the feeding hopper. A sliding positioning rod is installed on the outer surface of the installation block, and an adsorption magnet is fixedly provided on the outer surface of the pull rod on one side.

[0005] Preferably, the outer surface of the rotating drum is in contact with the inner surface of the feeding hopper, and the outer surface of the rotating drum protrudes from the outer surface of the feeding hopper.

[0006] By adopting the above technical solution, the drum can rotate smoothly in the feed hopper while ensuring the sealing of the contact surface between the two, effectively preventing material leakage from gaps. At the same time, its protruding design on the outside facilitates connection with external drive and locking structures.

[0007] Preferably, the sliding box and the rotating cylinder are connected by sliding friction, and one end of the pull rod passes through the clearance groove and the sliding groove.

[0008] The above technical solution enables the slide box to be smoothly pulled out and pulled in the rotating drum, realizing the switching between the working position and the observation position. The design of the pull rod passing through the clearance groove and the sliding groove links the sliding of the slide box and the closing plate with the rotational movement of the rotating drum, which is the key to realizing the function conversion.

[0009] Preferably, a spring connects the slide rod to the feed hopper, the limiting block is C-shaped, and the inner side of the upper end of the limiting block is a right-angled trapezoid, and the inclined surfaces of the upper end of the limiting block face each other. The slide rod is engaged with the pull rod through the limiting block.

[0010] By adopting the above technical solution, the spring makes the slide rod drive the limit block to have an automatic reset tendency. The C-shaped and right-angled trapezoidal inclined surface design allows the pull rod to squeeze the inclined surface and push the limit block open when resetting. After it is in place, the limit block automatically engages the pull rod under the action of the spring, realizing automatic locking of the working position and preventing the slide box from moving accidentally.

[0011] Preferably, the guide rails are arc-shaped, and one end of each of the two guide rails is connected to both ends of the relief groove, and one end of the relief groove penetrates the outer surface of the feed hopper.

[0012] Using the above technical solution, the arc-shaped guide rail provides a precise guiding path for the movement of the pull rod when the drum rotates, ensuring that the pull rod can slide accurately and smoothly from the working position to the two ends of the relief groove corresponding to the observation position.

[0013] Preferably, the positioning rod is L-shaped, and a spring connects the positioning rod to the mounting block.

[0014] By adopting the above technical solution, combined with the clamping force provided by the spring, a more stable and reliable locking can be achieved when the rotating drum is rotated to the observation position, preventing the rotating drum from shaking or deflecting during observation or sampling.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the easily observable pre-press feed structure: 1. By setting up a rotating drum driven by a switching motor and a removable sliding box, a portion of the material flow is creatively guided from the closed feeding hopper to the outside. Operators can remove the sliding box with only a brief pause in feeding to directly observe the material status inside, and even perform operations such as touching and sampling. This enables accurate judgment of material characteristics and precise fault location, effectively solving the problems of blind spots and misleading information in traditional observation windows. 2. The entire observation or sampling process does not require a complete shutdown of the equipment, nor does it require emptying the entire feed hopper. By switching the motor to adjust the angle of the rotating drum, and with the help of structures such as pull rods, guide rails and limit blocks, the sliding box can be quickly pulled out and reset. The operation is simple, time-saving and labor-saving, which minimizes downtime caused by observation and maintenance, and ensures the continuous and stable operation of the production line. 3. By setting a sliding closing plate, the openings at both ends of the slide box can be effectively sealed after the slide box is reset, preventing material leakage and ensuring sealing performance during normal operation. The automatic engagement of the slide rod and the limit block under the action of the spring, as well as the cooperation between the positioning rod and the positioning port, ensure that the slide box can maintain a reliable locked state in both the working position and the observation position, avoiding accidental opening or displacement caused by equipment vibration and other reasons, making it safe and reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the pre-pressing machine body, feeding hopper, and rotating drum of this utility model; Figure 3 This is a three-dimensional structural diagram of the connection between the feed bin, guide rail, and clearance groove of this utility model; Figure 4 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the switching motor, rotating drum, and sliding box of this utility model; Figure 5 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the rotating drum, sliding box, and enclosed plate of this utility model; Figure 6 This is a three-dimensional structural diagram of the connection between the positioning port, the mounting block, and the positioning rod of this utility model.

[0017] In the diagram: 1. Pre-pressing machine body; 2. Feed hopper; 3. Switching motor; 4. Rotary drum; 5. Sliding box; 6. Enclosing plate; 7. Pull rod; 8. Sliding rod; 9. Limiting block; 10. Guide rail; 11. Clearance groove; 12. Sliding groove; 13. Positioning port; 14. Mounting block; 15. Positioning rod; 16. Adsorption magnet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6 This utility model provides a technical solution: a pre-press feed structure that is easy to observe.

[0020] Example 1: This example discloses: a pre-pressing machine body 1, a feeding bin 2 fixedly connected to the upper end of the pre-pressing machine body 1, a switching motor 3 fixedly installed on the outer surface of the upper end of the feeding bin 2, one end of the output shaft of the switching motor 3 penetrating the inner surface of the feeding bin 2, and a rotating drum 4 fixedly connected to the output shaft of the switching motor 3, a sliding slide box 5 installed inside the rotating drum 4, and sliding sealing plates 6 installed inside both ends of the slide box 5, and a pull rod 7 fixedly installed on the outer surface of one end of the sealing plate 6, a sliding slide rod 8 installed on the outer surface of the feeding bin 2, and a limit block 9 fixedly connected to one end of the slide rod 8, a guide rail 10 and a clearance groove 11 opened on one side of the outer surface of the feeding bin 2, and a sliding groove 12 opened on the outer surface of one end of the rotating drum 4; The outer surface of the rotating drum 4 is in contact with the inner surface of the feed bin 2, and the outer surface of the rotating drum 4 protrudes from the outer surface of the feed bin 2. The sliding box 5 and the rotating cylinder 4 are connected by sliding friction, and one end of the pull rod 7 passes through the clearance groove 11 and the sliding groove 12; A spring connects the slide bar 8 to the feed bin 2. The limiting block 9 has a C-shaped design, and the inner side of the upper end of the limiting block 9 has a right-angled trapezoidal design. The inclined surfaces of the upper end of the limiting block 9 are set facing each other. The slide bar 8 is engaged with the pull rod 7 through the limiting block 9. The guide rail 10 is arc-shaped, and one end of each of the two guide rails 10 is connected to both ends of the relief groove 11, and one end of the relief groove 11 penetrates the outer surface of the feed bin 2. During normal feeding, switch motor 3 keeps the rotating drum 4 in a vertical working position. At this time, the sliding box 5 and the rotating drum 4 together form a feeding channel, and the material can pass through smoothly and enter the pre-pressing body 1 below. When observation or sampling is required, push the pull rod 7 inward to close the two ends of the sliding box 5 with the sealing plate 6, then pull the sliding rod 8 to release the limit block 9 from the pull rod 7, and then start the switching motor 3 to drive the rotating drum 4 and the sliding box 5 inside it to rotate 90 degrees. Since one end of the pull rod 7 passes through the relief groove 11 on the feed bin 2 and the sliding groove 12 on the rotating drum 4, and is connected to the sealing plate 6 inside the sliding box 5, the rotation of the rotating drum 4 will drive the pull rod 7 to slide along the arc guide rail 10 to one end of the relief groove 11. When the rotating drum 4 rotates to the predetermined angle, the two pull rods 7 slide to the two ends of the relief groove 11 respectively. At this time, the horizontal sliding pull rods 7 bring the slide box 5 out of the feed bin 2, so that the material originally located in the slide box 5 is exposed to the outside, allowing the operator to observe, touch or sample from multiple angles. After observation or sampling is completed, push the sliding box 5 back into the rotating drum 4 until it is in place, control the switching motor 3 to reverse, drive the rotating drum 4 and the sliding box 5 back to the vertical working position, and normal feeding can be resumed. Then, the sliding rod 8, supported by the spring, limits the pull rod 7 through the limit block 9 to ensure the stability of material transmission.

[0021] Example 2: This example is based on Example 1: A positioning port 13 is provided on the outer surface of one end of the rotating drum 4, and an installation block 14 is fixedly provided on the outer surface of one end of the feeding bin 2. A sliding positioning rod 15 is installed on the outer surface of the installation block 14, and an adsorption magnet 16 is fixedly provided on the outer surface of the pull rod 7 on one side. The positioning rod 15 is L-shaped, and a spring connects the positioning rod 15 to the mounting block 14; When the switching motor 3 drives the rotating drum 4 to the observation position, the positioning port 13 on the outside of the rotating drum 4 will align with the positioning rod 15 on the mounting block 14. When the pull rod 7 slides out, the adsorption magnet 16 is driven away from the positioning rod 15 and releases the adsorption on the positioning rod 15. At this time, under the action of the spring, the L-shaped positioning rod 15 will automatically slide into the positioning port 13, realizing the precise positioning and locking of the rotating drum 4, preventing it from rotating slightly due to vibration or material impact during the observation process, enhancing stability and effectively preventing material leakage.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-press feed structure that is easy to observe, comprising a pre-press body (1), wherein a feed hopper (2) is fixedly connected to the upper end of the pre-press body (1), characterized in that: A switching motor (3) is fixedly installed on the upper outer surface of the feeding bin (2). One end of the output shaft of the switching motor (3) passes through the inner surface of the feeding bin (2), and the output shaft of the switching motor (3) is fixedly connected to a rotating drum (4). A sliding slide box (5) is installed inside the rotating drum (4), and sliding closing plates (6) are installed inside both ends of the slide box (5). A pull rod (7) is fixedly installed on the outer surface of one end of the closing plate (6). A sliding slide rod (8) is installed on the outer surface of the feeding bin (2), and a limit block (9) is fixedly connected to one end of the slide rod (8). A guide rail (10) and a clearance groove (11) are opened on one side of the outer surface of the feeding bin (2), and a sliding groove (12) is opened on one side of the outer surface of the rotating drum (4).

2. The pre-press feed structure for easy observation according to claim 1, characterized in that: A positioning port (13) is provided on the outer surface of one end of the rotating drum (4), and an installation block (14) is fixedly provided on the outer surface of one end of the feeding bin (2), and a sliding positioning rod (15) is installed on the outer surface of the installation block (14), and an adsorption magnet (16) is fixedly provided on the outer surface of the pull rod (7) on one side.

3. The pre-press feed structure for easy observation according to claim 1, characterized in that: The outer surface of the rotating drum (4) is in contact with the inner surface of the feed hopper (2), and the outer surface of the rotating drum (4) protrudes from the outer surface of the feed hopper (2).

4. The pre-press feed structure for easy observation according to claim 1, characterized in that: The sliding box (5) and the rotating cylinder (4) are connected by sliding friction, and one end of the pull rod (7) passes through the relief groove (11) and the sliding groove (12).

5. The pre-press feed structure for easy observation according to claim 1, characterized in that: A spring connects the slide rod (8) to the feed bin (2). The limiting block (9) is C-shaped, and the inner side of the upper end of the limiting block (9) is a right-angled trapezoid. The inclined surfaces of the upper end of the limiting block (9) are set facing each other. The slide rod (8) is engaged with the pull rod (7) through the limiting block (9).

6. The pre-press feed structure for easy observation according to claim 1, characterized in that: The guide rail (10) is arc-shaped, and one end of the two guide rails (10) is connected to both ends of the relief groove (11), and one end of the relief groove (11) penetrates the outer surface of the feed bin (2).

7. The pre-press feed structure for easy observation according to claim 2, characterized in that: The positioning rod (15) is L-shaped, and a spring connects the positioning rod (15) and the mounting block (14).

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