CN116810898A - Solid screening device of filament cutter - Google Patents

Abstract

The invention belongs to the technical field of tobacco shreds, and particularly relates to a solid screening device of a tobacco cutter, which comprises a sealing box and a suction pipeline, wherein a negative pressure pipeline is communicated with the sealing box, a sealing valve is fixedly connected in an ash discharge port of the sealing box, the lower end of the sealing valve is fixedly connected with a separating box, two mounting frames are symmetrically arranged on the inner wall of the separating box, a vibrating groove is arranged between the two mounting frames, a vibrating motor is arranged on the separating box, a plurality of filtering holes are arranged on the vibrating groove, a first collecting cavity is formed below the vibrating groove in the separating box, and a second collecting cavity is formed at one end of the separating box, which is far away from the vibrating groove. The purpose is that: in the suction pipeline draws out the solid that powder, granule and stalk silk are constituteed in the filament cutter, open behind the sealing valve, the solid drops to shake the groove top, sieves through the groove that shakes that has the filtration pore, and powder and granule pass through the filtration pore and drop to first collection intracavity, and stalk silk drops to the second and collects the intracavity, accomplish the screening of solid voluntarily, the recycle of stalk silk of being convenient for.

Description

A kind of solid screening device for shredding machine

Technical field

The invention belongs to the technical field of tobacco shredders, and specifically relates to a solid screening device for shredders.

Background technique

The tobacco shredder is the main equipment of the cigarette making line. During the operation of the tobacco shredder, the tobacco in the tobacco shredder will produce shredded tobacco dust. The long-term wear of the grinding wheel at the knife roller will produce particles. Therefore, using tobacco shreds When cutting, it is often necessary to promptly recover and discharge tobacco dust and particles in the shredding machine, thereby improving the purity of the shredded tobacco produced by the tobacco shredding machine.

Existing tobacco shredders generally use negative pressure pipes to extract the tobacco dust and particles in the shredder and introduce them into the sealed box through air flow. The dust and particles fall to the bottom of the sealed box due to their own gravity. The bottom of the sealed box It is equipped with a star-shaped dust discharge valve, which ensures the airtightness of the sealed box and periodically discharges dust and particles into the separation box.

However, when the negative pressure pipe sucks the dust and particles out of the shredder, it will also suck out the tobacco stems. After entering the separation box, the tobacco stems, dust and particles are not easy to separate, which is not conducive to the recycling of the tobacco stems.

Contents of the invention

The object of the present invention is to provide a solid screening device for a shredder, which is used to solve the problem that when the negative pressure pipe sucks dust and particles out of the shredder, tobacco stems, stems, and dust will be sucked out at the same time. The technical problem is that it is difficult to separate particles after entering the separation box, which is not conducive to the recovery of cut stems.

In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

A solid screening device for a shredder, which is characterized in that it includes a control module, a sensing module, a sealing box and a suction pipe connected to the shredder, and the suction pipe is connected to one side of the sealing box. A negative pressure pipe is connected to the sealing box. An ash discharge port is provided at the lower end of the sealing box. A sealing valve is fixedly connected to the sealing box in the ash discharge port. A separation box is fixedly connected to the lower end of the sealing valve. The separation box Two mounting brackets are symmetrically installed on the inner wall of the box, and a vibration groove is installed between the two mounting brackets. A vibration motor is installed on the separation box, and the vibration motor is drivingly connected to the vibration groove. There is a vibration groove on the vibration groove. There are a plurality of filter holes, the separation box is provided with a first collection chamber below the vibration groove, and the end of the separation box away from the vibration groove is provided with a second collection chamber;

The sensing module is installed in the sealing valve and used to detect the solid weight in the sealing valve;

The control module is connected with signals to the sealing valve, vibration motor and sensing module respectively. When the solid weight in the sealing valve exceeds the preset value, the sealing valve and vibration motor are opened.

It is further limited that the sealing valve includes a connecting pipe, an upper valve core and a lower valve core. Both ends of the connecting pipe are connected to the sealing box and the separation box respectively. The upper valve core and the lower valve core are both rotationally connected to the connecting pipe. , the central axis of the upper valve core and the lower valve core are parallel and located above the lower valve core. The upper valve core and the lower valve core are respectively provided with a first rotating plate and a second rotating plate symmetrically outside the connecting pipe. , a cylinder is installed on the connecting pipe, the moving end of the cylinder is fixedly connected with a first toggle plate on one side of the first rotating plate, and the moving end of the cylinder is fixedly connected on one side of the second rotating plate. The second toggle plate is located on the side of the first toggle plate away from the cylinder. The upper valve core and the lower valve core are both equipped with torsion springs on the outside of the connecting pipe. This structural design uses the lower valve core, the upper valve core and the cylinder to alternately close and open the upper valve core and the lower valve core to ensure the tightness of the sealing box during ash discharge.

It is further limited that the connecting pipe is provided with first sealing strips on both sides of the upper valve core, and the connecting pipe is provided with second sealing strips on both sides of the lower valve core. With this structural design, both the first sealing strip and the second sealing strip are made of wear-resistant rubber. When the valve core is closed, they come into contact with the wear-resistant rubber to form a seal.

It is further limited that the suction pipe is connected with a venturi tube in the sealed box. With such a structural design, by setting up a Venturi tube, the solids extracted from the shredder follow the airflow into the Venturi tube, and are accelerated in the middle of the Venturi tube. Due to the large inertia, the accelerated solids break away from the airflow, hit the sealed box, and slide down. to the sealing valve to prevent solids from following the air flow into the negative pressure pipeline.

It is further limited that the separation box is provided with a ramp in the first collection chamber. Such a structural design allows the screened powder and particles to slide down to the lowest point along the ramp for easy collection.

It is further limited that an elastic pad is provided between the mounting bracket and the vibration groove. This structural design uses elastic pads to buffer the vibrating tank when it vibrates, preventing the vibrating tank from hitting the separation box and improving the service life.

It is further limited that the vibration groove is fixedly connected with a collection bag in the first collection chamber, a collection port is provided on the inclined platform, a communication port is provided on the collection port of the collection bag, and the connection port is connected with the collection port, The ramp is equipped with a one-way door in the collection port, and the separation box is disassembled and installed with a replacement bag at the lower end of the collection port. With such a structural design, when the vibrating trough vibrates, the powder and particles fall into the collection bag. The collection bag vibrates with the vibrating trough, and the powder and particles fall into the replacement bag through the one-way door, completing the automatic collection of powders and particles. collect.

It is further limited that a connecting strip is fixedly connected to the inclined platform, and the connecting strip is fixedly connected to the collection bag. With such a structural design, connecting strips are provided to connect the lower end of the collection bag to the upper surface of the ramp, thereby limiting the rocking direction of the collection bag and preventing shredded tobacco from entering the first collection cavity.

The invention adopting the above technical solution has the following advantages:

1. Through the cooperation of the suction pipe, sealing valve and vibration groove, the suction pipe extracts the solid composed of powder, granules and stems from the shredder. After the sealing valve is opened, the solid falls to the top of the vibration groove and passes through The vibrating trough with filter holes is used for screening. The powder and particles fall through the filter holes into the first collection chamber, and the cut stems fall into the second collection chamber. The solid screening is automatically completed to facilitate the recycling of the cut stems. .

2. Through the lower valve core, the upper valve core and the cylinder, the upper valve core and the lower valve core are alternately closed and opened to ensure the tightness of the sealing box during ash discharge.

3. When the vibration trough is vibrating, the powder and particles fall into the collection bag. The collection bag vibrates with the vibration trough. The powder and particles fall into the replacement bag through the one-way door, completing the automatic collection of powder and particles.

Description of the drawings

The invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

Figure 1 is a schematic structural diagram of an embodiment of a shredding machine solid screening device according to the present invention;

Figure 2 is an enlarged view of the structure at A in Figure 1;

Figure 3 is a cross-sectional view of an embodiment of a shredding machine solid screening device according to the present invention;

Figure 4 is a cross-sectional view of the sealing valve part and the separation box part in an embodiment of the shredder solid screening device of the present invention;

The main component symbols are explained as follows:

Sealing box 1, suction pipe 11, negative pressure pipe 12, venturi tube 13,

Sealing valve 2, connecting pipe 21, upper valve core 22, lower valve core 23, first rotating plate 24, second rotating plate 25, torsion spring 26, first sealing strip 27, second sealing strip 28,

Separating box 3, mounting frame 31, vibration groove 32, vibration motor 33, filter hole 34, first collection chamber 35, second collection chamber 36, cylinder 37, first toggle plate 371, second toggle plate 372, elastic Pad 38,

Collection bag 4, one-way door 41, replacement bag 42, connecting strip 43.

Detailed ways

The present invention will be described in detail below with reference to the drawings and specific embodiments. It should be noted that in the drawings or the description of the specification, similar or identical parts use the same figure numbers. Implementations not shown or described in the drawings The method is a form known to those of ordinary skill in the technical field. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "back", etc., are only for reference to the accompanying drawings. direction is not intended to limit the scope of protection of the present invention.

As shown in Figures 1 to 4, a solid screening device for a shredder of the present invention is characterized by: including a control module, a sensing module, a sealing box 1 and a suction pipe 11 connected to the shredder. The pipeline 11 is connected to one side of the sealing box 1. The sealing box 1 is connected with a negative pressure pipe 12. An ash discharge port is provided at the lower end of the sealing box 1. The sealing box 1 is fixedly connected with a sealing valve 2 in the ash discharge port. The sealing valve 2 A separation box 3 is fixedly connected to the lower end of the separation box 3. Two mounting brackets 31 are symmetrically installed on the inner wall of the separation box 3. A vibration groove 32 is installed between the two mounting brackets 31. A vibration motor 33 is installed on the separation box 3. The vibration motor 33 and The vibration trough 32 is connected by transmission. A plurality of filter holes 34 are provided on the vibration trough 32. The separation box 3 has a first collection chamber 35 below the vibration trough 32. The separation box 3 has a second collection chamber at one end away from the vibration trough 32. 36. The sensing module adopts a pressure sensor and is installed in the sealing valve 2 to detect the solid weight in the sealing valve 2; the control module is connected with the signal of the sealing valve 2, the vibration motor 33 and the sensing module respectively. When the sealing valve 2 is in the After the solid weight exceeds the preset value, open the sealing valve 2 and the vibration motor 33.

The sealing valve 2 includes a connecting pipe 21, an upper valve core 22 and a lower valve core 23. Both ends of the connecting pipe 21 are connected to the sealing box 1 and the separation box 3 respectively. The upper valve core 22 and the lower valve core 23 both rotate with the connecting pipe 21. connection, the central axes of the upper valve core 22 and the lower valve core 23 are parallel and located above the lower valve core 23. The upper valve core 22 and the lower valve core 23 are respectively provided with a first rotating plate 24 and a first rotating plate 24 symmetrically outside the connecting pipe 21. The second rotating plate 25 has a cylinder 37 installed on the connecting pipe 21. The moving end of the cylinder 37 is fixedly connected to a first toggle plate 371 on one side of the first rotating plate 24. The moving end of the cylinder 37 is connected to the second rotating plate 25. A second toggle plate 372 is fixedly connected to one side of the first toggle plate 371 and is located on the side of the first toggle plate 371 away from the cylinder 37. The upper valve core 22 and the lower valve core 23 are both installed on the outside of the connecting pipe 21. There are 26 torsion springs. Through the lower valve core 23, the upper valve core 22 and the cylinder 37, the upper valve core 22 and the lower valve core 23 are alternately closed and opened to ensure the tightness of the sealing box 1 during ash discharge. The pressure sensor is installed above the lower valve core 23.

The connecting pipe 21 is provided with first sealing strips 27 on both sides of the upper valve core 22 , and the connecting pipe 21 is provided with second sealing strips 28 on both sides of the lower valve core 23 . Both the first sealing strip 27 and the second sealing strip 28 are made of wear-resistant rubber. When the valve core is closed, they come into contact with the wear-resistant rubber to form a seal.

The suction pipe 11 is connected with a venturi tube 13 in the sealed box 1 . By setting the ventu tube 13, the solid extracted from the shredder follows the air flow into the ventu tube 13, and is accelerated in the middle of the ventu tube 13. Due to the large inertia, the accelerated solid breaks away from the air flow, hits the sealing box 1, and slides to The sealing valve 2 prevents solids from following the air flow into the negative pressure pipe 12.

The separation box 3 is provided with a ramp in the first collection chamber 35 . By setting up a ramp, the screened powder and particles slide down to the lowest point along the ramp for easy collection.

An elastic pad 38 is provided between the mounting bracket 31 and the vibration groove 32 . By providing the elastic pad 38, the vibration groove 32 is buffered when it vibrates, preventing the vibration groove 32 from hitting the separation box 3, and improving the service life.

The vibration groove 32 is fixedly connected with a collection bag 4 in the first collection cavity 35. A collection port is provided on the ramp. The collection bag 4 is provided with a connecting port on the collection port. The connection port is connected with the collection port. The ramp is equipped with a collection port. The one-way door 41 and the separation box 3 are disassembled and installed with a replacement bag 42 at the lower end of the collection opening. When the vibration groove 32 is vibrating, the powder and particles fall into the collection bag 4, and the collection bag 4 vibrates with the vibration groove. The powder and particles fall into the replacement bag 42 through the one-way door 41, completing the automatic collection of powder and particles. collect.

A connecting bar 43 is fixedly connected to the inclined platform, and the connecting bar 43 is fixedly connected to the collection bag 4 . By providing the connecting strip 43, the lower end of the collection bag 4 is connected to the upper surface of the ramp, thereby limiting the rocking direction of the collection bag 4 and preventing cut tobacco from entering the first collection chamber 35.

The usage method and principle of this embodiment are as follows:

When the negative pressure pipe 12 is working, the upper valve core 22 is in a vertical state, the upper end of the connecting pipe 21 is open, the lower valve core 23 is in a horizontal position, the lower end of the connecting pipe 21 is closed, and the negative pressure formed by the negative pressure pipe 12 and the suction pipe 11 The airflow extracts the solids composed of dust, particles and part of the stems in the shredder. The solids follow the airflow and enter the Venturi tube 13, and are accelerated in the middle of the Venturi tube 13. Due to the large inertia, the accelerated solids break away from the airflow and hit the On the sealing box 1, slide down into the connecting pipe 21 and accumulate above the lower valve core 23;

When the value of the pressure sensor exceeds the preset value, the controller sends a signal, and the cylinder 37 contracts, driving the movable rod to move. The first toggle plate 371 first contacts the first rotating plate 24, making the upper valve core 22 turn 90 degrees counterclockwise. The upper end of the connecting pipe 21 is closed to maintain the airtightness of the sealing box 1. The cylinder 37 continues to shrink, and the second toggle plate 372 contacts the second rotating plate 25 again, causing the lower valve core 23 to rotate 90 degrees clockwise, and the connecting pipe 21 The lower end is opened, and the solid falls to the top of the vibration groove 32;

The cylinder 37 returns to its original position, and due to the elasticity of the torsion spring 26, the upper valve core 22 opens and the lower valve core 23 closes;

The vibration motor 33 starts to work, and the vibration groove 32 drives the solid to vibrate. The stems in the solid slide along the vibration groove 32 into the second collection chamber 36. The powder and particles fall into the collection bag 4, and the collection bag 4 vibrates with the vibration groove. , the powder and granules fall into the replacement bag through the one-way door 41, completing the automatic collection of powder and granules.

The solid screening device of a shredder provided by the present invention has been introduced in detail above. The description of specific embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of the claims of the present invention.

Claims (8)

1. A solid screening device for a shredder, characterized in that it includes a control module, a sensing module, a sealing box (1) and a suction pipe (11) connected to the shredder. The suction pipe (11) ) is connected to one side of the sealed box (1). A negative pressure pipe (12) is connected to the sealed box (1). An ash discharge port is provided at the lower end of the sealed box (1). The sealed box (1) ) is fixedly connected to a sealing valve (2) in the ash discharge port. A separation box (3) is fixedly connected to the lower end of the sealing valve (2). Two mounting brackets (31) are symmetrically installed on the inner wall of the separation box (3). ), a vibration groove (32) is installed between the two mounting brackets (31), a vibration motor (33) is installed on the separation box (3), the vibration motor (33) and the vibration groove (32) Transmission connection, the vibration groove (32) is provided with a plurality of filter holes (34), the separation box (3) has a first collection chamber (35) below the vibration groove (32), the separation box (3) A second collection cavity (36) is provided at one end away from the vibration groove (32); The sensing module is arranged in the sealing valve (2) and is used to detect the solid weight in the sealing valve (2); The control module is connected to the sealing valve (2), the vibration motor (33) and the sensing module with signals respectively. When the solid weight in the sealing valve (2) exceeds the preset value, the sealing valve (2) and the vibration motor (33) are opened. 33). 2. A solid screening device for shredders according to claim 1, characterized in that: the sealing valve (2) includes a connecting pipe (21), an upper valve core (22) and a lower valve core (23) , both ends of the connecting pipe (21) are connected with the sealing box (1) and the separation box (3) respectively, and the upper valve core (22) and the lower valve core (23) are both rotationally connected with the connecting pipe (21) , the central axes of the upper valve core (22) and the lower valve core (23) are parallel and located above the lower valve core (23). The upper valve core (22) and the lower valve core (23) are respectively connected to A first rotating plate (24) and a second rotating plate (25) are symmetrically arranged on the outside of the pipe (21). A cylinder (37) is installed on the connecting pipe (21). The moving end of the cylinder (37) is at A first toggle plate (371) is fixedly connected to one side of the first rotating plate (24), and a second toggle plate is fixedly connected to one side of the second rotating plate (25) at the moving end of the cylinder (37). (372), the second toggle plate (372) is located on the side of the first toggle plate (371) away from the cylinder (37), the upper valve core (22) and the lower valve core (23) are connected to the connecting pipe Torsion springs (26) are installed on the outer sides of (21). 3. A solid screening device for shredding machines according to claim 2, characterized in that: the connecting pipe (21) is provided with first sealing strips (27) on both sides of the upper valve core (22). ), the connecting pipe (21) is provided with second sealing strips (28) on both sides of the lower valve core (23). 4. A solid screening device for shredders according to claim 1, characterized in that the suction pipe (11) is connected with a venturi tube (13) in the sealed box (1). 5. A solid screening device for shredders according to claim 1, characterized in that the separation box (3) is provided with a ramp in the first collection chamber (35). 6. A solid screening device for a shredder according to claim 1, characterized in that an elastic pad (38) is provided between the mounting frame (31) and the vibration groove (32). 7. A solid screening device for shredding machines according to claim 5, characterized in that: the vibration groove (32) is fixedly connected with a collection bag (4) in the first collection cavity (35), and the A collection port is provided on the ramp. The collection bag (4) is provided with a connecting port on the collection port. The connection port is connected with the collection port. The ramp is equipped with a one-way door (41) in the collection port. The separation box (3) is disassembled and installed with a replacement bag (42) at the lower end of the collection port. 8. A solid screening device for shredding machines according to claim 7, characterized in that: a connecting bar (43) is fixedly connected to the inclined platform, and the connecting bar (43) and the collection bag (4) Fixed connection.