Inner wall residual prevention tobacco stem chip pre-press

Abstract

The utility model provides a kind of inner wall anti-residual tobacco stem fragment pre-pressing machine, comprising: conveying cylinder, the tobacco stem fragment that is sent into cylinder is crushed by crushing device, the tobacco stem fragment after crushing falls into the conical hopper section of cylinder lower end portion, and the material receiving frame on the roller conveyor directly below is fallen by the material outlet vertical pipe of conical hopper section bottom outer connection;Pre-pressing mechanism is used to the pre-pressing of the tobacco stem fragment that is conveyed to the material receiving frame directly below with roller conveyor;First vibrating mechanism is used for the material of material outlet vertical pipe;Second vibrating mechanism is used for the material of conical hopper section;Roller conveyor is used for conveying material receiving frame.The utility model can effectively prevent tobacco stem fragment from blocking, guarantee the pre-pressing of tobacco stem fragment to carry on smoothly, so as to facilitate the subsequent transfer and storage of tobacco stem fragment.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and more specifically to a pre-compressor for tobacco stem fragments with an inner wall designed to prevent residue buildup. Background Technology

[0002] Packing tobacco materials into boxes facilitates transportation or storage. Due to the fluffy nature of tobacco stem fragments, uneven packing density can easily occur, affecting transportation efficiency. Traditional equipment has a complex overall design, using a compression chamber to pre-compress the tobacco stem fragments fed in by the feeding structure. However, the connection between the feeding mechanism and the compression chamber is easily blocked by tobacco stem fragments, affecting the efficiency of pre-compression. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a pre-compressor for tobacco stem fragments with an inner wall that prevents residue buildup. This effectively prevents tobacco stem fragments from clogging the pipes and ensures that the pre-compressing of tobacco stem fragments is carried out smoothly, so as to facilitate the subsequent transfer and storage of tobacco stem fragments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pre-compressor for tobacco stem fragments with an inner wall designed to prevent residue buildup includes:

[0006] The conveyor cylinder is a vertical cylinder. The tobacco stem fragments fed into the cylinder are crushed by a crushing device. The crushed tobacco stem fragments fall into the cone section at the lower end of the cylinder. They fall into the receiving frame on the roller conveyor directly below through the discharge vertical pipe connected to the discharge port at the bottom center of the cone section.

[0007] The pre-compression mechanism is located directly above the roller conveyor and downstream of the conveyor cylinder. It drives the pressure plate to move vertically back and forth in a straight line under the guidance of the pre-compression guide member through the pre-compression drive device. It can either move downward to the pre-compression position and tightly press the tobacco stem fragments conveyed by the roller conveyor to the receiving frame directly below by the flat lower plate surface, or return upward to the initial position and extend directly above the roller conveyor.

[0008] The first vibrating mechanism is provided with a pair of symmetrically distributed around the discharge vertical pipe. The first vibrating mechanism drives the first vibrating plate to reciprocate linearly along the radial direction of the discharge vertical pipe through the first vibrating driving device. The pair of first vibrating plates either move towards each other to collide with the discharge vertical pipe and symmetrically clamp the outside of the discharge vertical pipe, or move away from each other to the initial position and detach from the discharge vertical pipe.

[0009] The second vibrating material mechanism is provided in pairs and symmetrically distributed below the cone bucket section. The second vibrating material mechanism drives the second vibrating material plate to move vertically and reciprocally in a straight line through the second vibrating material driving device. The pair of second vibrating material plates either move upward until they collide with the outer wall of the cone bucket section through the multiple striking columns they are attached to, or move downward to the initial position and detach from the cone bucket section.

[0010] Roller conveyors are used to transport receiving frames.

[0011] The structural features of this utility model also lie in:

[0012] The first vibrating material drive device and the second vibrating material drive device share the same dual-axis motor. The two motor shafts of the dual-axis motor serve as the first power output shaft of the first vibrating material drive device and the second power output shaft of the second vibrating material drive device, respectively.

[0013] The first vibrating material driving device is driven by the first power output shaft, which drives the first eccentric wheel coaxially connected to the first power output shaft to rotate synchronously. The outer edge of the first eccentric wheel pushes the first guide rod to slide along the first guide hole in the radial direction of the discharge vertical pipe towards the discharge vertical pipe, which drives the first vibrating material plate set at the end of the first guide rod to move synchronously. The first guide rod is fitted with a first spring. When the first spring is in its natural state, the first vibrating material plate is in its initial position.

[0014] The side of the first vibrating plate that comes into contact with the discharge vertical pipe is a concave arc surface that fits the outer wall of the discharge vertical pipe.

[0015] The second vibrating material drive device is driven by the second power output shaft, which drives the active bevel gear coaxially connected to the second power output shaft to rotate synchronously. The driven bevel gear meshes with the active bevel gear and drives the second eccentric wheel coaxially connected to the wheel axle to rotate synchronously. The outer edge of the second eccentric wheel pushes the second vibrating material plate to move vertically and reciprocally in a straight line under the guidance of the second guide member.

[0016] The second guide component includes a second guide rod, a second guide hole, and a second spring. A vertically penetrating second guide hole is formed on the second vibrating plate. The second guide rod slides through the second guide hole. The rod body is fitted with a second spring. The second spring connects the second vibrating plate and the second guide rod. When the second spring is in its natural state, the second vibrating plate is in its initial position.

[0017] The multiple striking posts at the top of the second vibrating plate are designed to match the overall contour of the part that contacts the outer wall of the cone section with the shape of the corresponding part of the outer wall of the cone section.

[0018] The crushing device is driven by a crushing motor at the top of the conveying cylinder to rotate the crushing shaft inside the cylinder. The crushing blades on the crushing shaft stir the tobacco stem fragments inside the cylinder. The stirring shaft is also connected to a pair of arc-shaped scrapers, which are symmetrically distributed and connected to the crushing shaft through connecting rods. They rotate synchronously with the stirring shaft and maintain contact with the inner wall of the conveying cylinder by relying on the arc-shaped surface.

[0019] The pre-compression mechanism includes a pre-compression cylinder, a pressure plate, and a pre-compression guide component, all mounted on a support frame. The pre-compression guide component includes a pair of linear slide rail assemblies and a pair of pre-compression guide rods. The pressure plate is driven by the pre-compression cylinder to reciprocate vertically in a linear motion. One end of each pair of pre-compression guide rods is symmetrically connected to the upper sides of the pressure plate, and the other end is vertically slidably inserted through a pair of pre-compression guide holes on the support frame. Both ends of the pressure plate are connected to the sliders of the linear slide rail assemblies, and the pressure plate can slide vertically along the slide rails of the linear slide rail assemblies via the sliders.

[0020] Compared with existing technologies, the beneficial effects of this utility model are reflected in:

[0021] This invention uses a conveyor cylinder equipped with a crushing device to initially crush the fed tobacco stem fragments. An arc-shaped scraper, rotating synchronously with the crushing shaft, continuously scrapes the inner wall of the cylinder, preventing residual tobacco stem fragments from remaining on the inner wall. The initially crushed tobacco stem fragments fall through the discharge vertical pipe into the receiving frame below, and are then conveyed downstream by a roller conveyor to a pre-compression mechanism. The pre-compression mechanism uses a pressure plate to press the tobacco stem fragments conveyed by the roller conveyor to the receiving frame below, completing the pre-compression. A first vibrating mechanism is installed at the discharge vertical pipe to effectively ensure the smooth discharge of tobacco stem fragments from the discharge vertical pipe and prevent material blockage. A second vibrating mechanism is installed outside the conical section of the conveyor cylinder to effectively ensure the smooth discharge of tobacco stem fragments from the conical section and prevent material blockage. Thus, this invention can pre-compress tobacco stem fragments while effectively preventing material blockage, preparing them for transfer or storage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the conveyor cylinder;

[0025] Figure 4 This is a schematic diagram of the preloading mechanism;

[0026] Figure 5 This is a schematic diagram showing the positional distribution of the first and second vibrating mechanisms;

[0027] Figure 6This is a structural diagram of the first vibrating mechanism and the second vibrating mechanism;

[0028] Figure 7 This is a partial structural diagram of the second vibrating material mechanism.

[0029] In the picture:

[0030] 1. Conveyor cylinder; 11. Conical bucket section; 12. Feed inlet; 13. Crushing motor; 14. Crushing shaft; 15. Crushing blade; 16. Connecting rod; 17. Arc-shaped scraper; 18. Discharge vertical pipe;

[0031] 21 Preload cylinder; 22 Pressure plate; 23 Linear slide rail assembly; 24 Preload guide rod; 25 Support frame;

[0032] 3 First vibrating material mechanism; 31 First power output shaft; 32 First eccentric wheel; 33 First guide rod; 34 First guide hole; 35 First vibrating plate; 36 First spring;

[0033] 4 Second vibrating mechanism; 41 Second power output shaft; 42 Driving bevel gear; 43 Driven bevel gear; 44 Second eccentric wheel; 45 Second vibrating plate; 46 Striking column; 47 Second guide rod; 471 Limiting ring; 48 Second guide hole; 49 Second spring;

[0034] 5. Vibrating feeder; 6. Dual-shaft motor;

[0035] 7. Roller conveyor; 8. Receiving frame. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] Please refer to Figures 1 to 7 The pre-compressor for preventing residual tobacco stem fragments on the inner wall in this embodiment includes:

[0038] The conveying cylinder 1 is a vertical cylinder. It is fed from the top inlet 12. The tobacco stem fragments fed into the cylinder are crushed by the crushing device. The crushed tobacco stem fragments fall into the cone section 11 at the lower end of the cylinder. They fall into the receiving frame 8 on the roller conveyor 7 directly below through the discharge vertical pipe 18 connected to the discharge port at the bottom center of the cone section 11.

[0039] The pre-compression mechanism is located directly above the roller conveyor 7 and downstream of the conveyor cylinder 1. The pressure plate 22 is driven by the pre-compression drive device to move vertically and reciprocally under the guidance of the pre-compression guide member, or it moves downward to the pre-compression position and tightly presses the tobacco stem fragments conveyed by the roller conveyor 7 to the receiving frame 8 directly below by the flat lower plate surface, or it moves upward back to the initial position and extends directly above the roller conveyor 7.

[0040] The first vibrating mechanism 3 is provided with a pair of symmetrically distributed around the discharge vertical pipe 18. The first vibrating mechanism 3 drives the first vibrating plate 35 to reciprocate linearly along the radial direction of the discharge vertical pipe 18 through the first vibrating driving device. The pair of first vibrating plates 35 either move towards each other to collide with the discharge vertical pipe 18 and symmetrically clamp the outside of the discharge vertical pipe 18, or move away from each other to the initial position and detach from the discharge vertical pipe 18.

[0041] The second vibrating mechanism 4 is provided in pairs and symmetrically distributed below the cone section 11. The second vibrating mechanism 4 drives the second vibrating plate 45 to vertically reciprocate linearly through the second vibrating drive device. The pair of second vibrating plates 45 either move upward to collide with the outer wall of the cone section 11 through the multiple striking columns 46 they are attached to, or move downward to the initial position and disengage from the cone section 11.

[0042] Roller conveyor 7 is used to convey receiving frame 8.

[0043] In practice, the corresponding structural features of the aforementioned tobacco stem fragment pre-compressor also include:

[0044] The first vibrating material drive device and the second vibrating material drive device share the same dual-axis motor 6. The two motor shafts of the dual-axis motor 6 serve as the first power output shaft 31 of the first vibrating material drive device and the second power output shaft 41 of the second vibrating material drive device, respectively.

[0045] The first vibrating drive device is driven by the first power output shaft 31, which drives the first eccentric wheel 32, which is coaxially connected to the first power output shaft 31, to rotate synchronously. The outer edge of the first eccentric wheel 32 pushes the first guide rod 33 to slide along the first guide hole 34 in the radial direction of the discharge vertical pipe 18 towards the discharge vertical pipe 18, which drives the first vibrating plate 35, which is located at the end of the first guide rod 33, to move synchronously. The first guide rod 33 is fitted with a first spring 36. When the first spring 36 is in its natural state, the first vibrating plate 35 is in its initial position.

[0046] The side of the first vibrating plate 35 that contacts the discharge vertical pipe 18 is an inner concave arc surface adapted to the outer wall of the discharge vertical pipe 18.

[0047] The first vibrating mechanism 3 and the second vibrating mechanism 4 are mounted on the vibrating frame 5. The first guide hole 34 is opened on the vibrating frame 5, and the first spring 36 is tensioned between the rod end of the first guide rod 33 and the vibrating frame 5.

[0048] The second vibrating material drive device is driven by the second power output shaft 41, which drives the active bevel gear 42, which is coaxially connected to the second power output shaft 41, to rotate synchronously. The driven bevel gear 43 meshes with the active bevel gear 42 and drives the second eccentric wheel 44, which is coaxially connected to the wheel axle, to rotate synchronously. The second vibrating material plate 45 is pushed vertically and reciprocally linearly under the guidance of the second guide member by the outer edge of the second eccentric wheel 44.

[0049] The second guide component includes a second guide rod 47, a second guide hole 48, and a second spring 49. A vertically penetrating second guide hole 48 is formed on the second vibrating plate 45. The second guide rod 47 slides through the second guide hole 48. The rod body is fitted with the second spring 49, which connects the second vibrating plate 45 and the second guide rod 47. When the second spring 49 is in its natural state, the second vibrating plate 45 is in its initial position. The end of the second guide rod 47 is equipped with a limiting ring 471, the outer diameter of which is larger than the diameter of the second guide hole 48.

[0050] The multiple striking posts 46 at the upper end of the second vibrating plate 45 are designed to match the overall outline of the part that contacts the outer wall of the cone section 11 with the shape of the corresponding part of the outer wall of the cone section 11.

[0051] The crushing device is driven by a crushing motor 13 at the top of the conveying cylinder 1, which rotates the crushing shaft 14 inside the cylinder. Crushing blades 15 on the crushing shaft 14 agitate the tobacco stem fragments inside the cylinder. A pair of arc-shaped scrapers 17 are also connected to the agitating shaft. These scrapers 17 are symmetrically distributed and connected to the crushing shaft 14 via connecting rods 16. They rotate synchronously with the agitating shaft, maintaining contact with the inner wall of the conveying cylinder 1 through their arc-shaped surfaces to prevent tobacco stem fragments from remaining on the inner wall. The connecting rods 16 extend radially along the crushing shaft 14, and the arc-shaped scrapers maintain contact with the inner wall of the conveying cylinder 1 from the upper end of the conical section 11 to the top of the conveying cylinder 1. Furthermore, the inner wall of the conveying cylinder 1 is coated with a polytetrafluoroethylene (PTFE) anti-stick coating, which further prevents tobacco stem fragments from adhering to the inner wall, ensuring their smooth discharge, reducing the difficulty and frequency of cleaning the conveying cylinder 1, and extending its service life.

[0052] The pre-compression mechanism includes a pre-compression cylinder 21, a pressure plate 22, and a pre-compression guide component, which are mounted on a support frame 25. The pre-compression guide component includes a pair of linear slide rail assemblies 23 and a pair of pre-compression guide rods 24. The pressure plate 22 is driven by the pre-compression cylinder 21 to move vertically and reciprocally in a linear direction. One end of the pair of pre-compression guide rods 24 is symmetrically connected to the upper two sides of the pressure plate 22, and the other end is vertically slidably inserted through a pair of pre-compression guide holes on the support frame 25. Both ends of the pressure plate 22 are connected to the sliders of the linear slide rail assemblies 23, and the sliders can slide vertically along the slide rails of the linear slide rail assemblies 23.

[0053] To match the operation of the pre-compression mechanism, the roller conveyor 7 uses intermittent conveying. The receiving frame 8 is a rectangular frame with an open top. The pressure plate 22 of the pre-compression mechanism extends downward from the open end into the receiving frame 8, pressing down on the tobacco stem fragments inside the frame. The figure shows the complete structure of the discharge vertical pipe 18 and the pressure plate 22, with the side plates of the receiving frame 8 hidden, only the bottom plate of the receiving frame 8 is shown.

[0054] Work process:

[0055] Driven by the crushing motor 13, the tobacco stem fragments fed into the conveying cylinder 1 are initially crushed by the crushing blades 15 under the rotation of the crushing shaft 14 with crushing blades 15, and then fall into the cone bucket section 11 and are discharged through the discharge vertical pipe 18 into the receiving frame 8 below.

[0056] The receiving frame 8, which receives tobacco stem fragments, is conveyed by roller conveyor 7 and arrives directly below the pressure plate 22 of the pre-compression mechanism. Driven by pre-compression cylinder 21 and guided by a pair of pre-compression guide rods 24 and a pair of linear slide rail assemblies 23, the pressure plate 22 descends to the pre-compression position, tightly pressing the tobacco stem fragments in the receiving frame 8 directly below. After completing the pre-compression of the tobacco stem fragments, it returns to the initial position.

[0057] Roller conveyor 7 continues to convey receiving frame 8 to the downstream station.

[0058] Anti-blocking principle:

[0059] First, the tobacco stem fragments inside the conveyor cylinder 1 are initially crushed using a crushing device, so that the crushed tobacco stem fragments can be discharged from the conveyor cylinder 1 more smoothly.

[0060] Secondly, a first vibrating material mechanism 3 is set up, driven by a dual-axis motor 6. The first guide rod 33 is pushed back and forth by the outer edge of the first eccentric wheel 32 periodically, so that a pair of vibrating material plates repeatedly collide with the discharge vertical pipe 18 along the radial direction of the discharge vertical pipe 18 at a fixed frequency. This is used to vibrate the discharge vertical pipe 18, which can effectively assist the smooth discharge of tobacco stem fragments in the discharge vertical pipe 18.

[0061] Thirdly, a second vibrating material mechanism 4 is set up, which is also driven by a dual-axis motor 6. Relying on the outer edge of the second eccentric wheel 44, the second vibrating material plate 45 is periodically pushed along the vertical direction at a fixed frequency by multiple striking columns 46 to repeatedly collide with the outer wall of the cone section 11, which is used to vibrate the material in the cone section 11 and can effectively assist the smooth discharge of tobacco stem fragments in the cone section 11.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A pre-compressor for tobacco stem fragments with an inner wall designed to prevent residue buildup, characterized in that, include: The conveyor cylinder is a vertical cylinder. The tobacco stem fragments fed into the cylinder are crushed by a crushing device. The crushed tobacco stem fragments fall into the cone section at the lower end of the cylinder. They fall into the receiving frame on the roller conveyor directly below through the discharge vertical pipe connected to the discharge port at the bottom center of the cone section. The pre-compression mechanism is located directly above the roller conveyor and downstream of the conveyor cylinder. It drives the pressure plate to move vertically back and forth in a straight line under the guidance of the pre-compression guide member through the pre-compression drive device. It can either move downward to the pre-compression position and tightly press the tobacco stem fragments conveyed by the roller conveyor to the receiving frame directly below by the flat lower plate surface, or move upward back to the initial position and extend directly above the roller conveyor. The first vibrating mechanism is provided with a pair of symmetrically distributed around the discharge vertical pipe. The first vibrating mechanism drives the first vibrating plate to reciprocate linearly along the radial direction of the discharge vertical pipe through the first vibrating driving device. The pair of first vibrating plates either move towards each other to collide with the discharge vertical pipe and symmetrically clamp the outside of the discharge vertical pipe, or move away from each other to the initial position and detach from the discharge vertical pipe. The second vibrating material mechanism is provided in pairs and symmetrically distributed below the cone bucket section. The second vibrating material mechanism drives the second vibrating material plate to move vertically and reciprocally in a straight line through the second vibrating material driving device. The pair of second vibrating material plates either move upward until they collide with the outer wall of the cone bucket section through the multiple striking columns they are attached to, or move downward to the initial position and detach from the cone bucket section. Roller conveyors are used to transport receiving frames.

2. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 1, characterized in that: The first vibrating material drive device and the second vibrating material drive device share the same dual-axis motor. The two motor shafts of the dual-axis motor serve as the first power output shaft of the first vibrating material drive device and the second power output shaft of the second vibrating material drive device, respectively.

3. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 2, characterized in that: The first vibrating material driving device is driven by the first power output shaft, which drives the first eccentric wheel coaxially connected to the first power output shaft to rotate synchronously. The outer edge of the first eccentric wheel pushes the first guide rod to slide along the first guide hole in the radial direction of the discharge vertical pipe towards the discharge vertical pipe, which drives the first vibrating material plate set at the end of the first guide rod to move synchronously. The first guide rod is fitted with a first spring. When the first spring is in its natural state, the first vibrating material plate is in its initial position.

4. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 1 or 3, characterized in that: The side of the first vibrating plate that comes into contact with the discharge vertical pipe is a concave arc surface that fits the outer wall of the discharge vertical pipe.

5. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 2, characterized in that: The second vibrating material drive device is driven by the second power output shaft, which drives the active bevel gear coaxially connected to the second power output shaft to rotate synchronously. The driven bevel gear meshes with the active bevel gear and drives the second eccentric wheel coaxially connected to the wheel axle to rotate synchronously. The outer edge of the second eccentric wheel pushes the second vibrating material plate to move vertically and reciprocally in a straight line under the guidance of the second guide member.

6. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 2, characterized in that: The second guide component includes a second guide rod, a second guide hole, and a second spring. A vertically penetrating second guide hole is formed on the second vibrating plate. The second guide rod slides through the second guide hole. The rod body is fitted with a second spring. The second spring connects the second vibrating plate and the second guide rod. When the second spring is in its natural state, the second vibrating plate is in its initial position.

7. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 2, characterized in that: The multiple striking posts at the top of the second vibrating plate are designed to match the overall contour of the part that contacts the outer wall of the cone section with the shape of the corresponding part of the outer wall of the cone section.

8. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 1, characterized in that: The crushing device is driven by a crushing motor at the top of the conveying cylinder to rotate the crushing shaft inside the cylinder. The crushing blades on the crushing shaft stir the tobacco stem fragments inside the cylinder. The stirring shaft is also connected to a pair of arc-shaped scrapers, which are symmetrically distributed and connected to the crushing shaft through connecting rods. They rotate synchronously with the stirring shaft and maintain contact with the inner wall of the conveying cylinder by relying on the arc-shaped surface.

9. The pre-compressor for preventing tobacco stem fragment residue on the inner wall according to claim 1, characterized in that: The pre-compression mechanism includes a pre-compression cylinder, a pressure plate, and a pre-compression guide component, all mounted on a support frame. The pre-compression guide component includes a pair of linear slide rail assemblies and a pair of pre-compression guide rods. The pressure plate is driven by the pre-compression cylinder to reciprocate vertically in a linear motion. One end of each pair of pre-compression guide rods is symmetrically connected to the upper sides of the pressure plate, and the other end is vertically slidably inserted through a pair of pre-compression guide holes on the support frame. Both ends of the pressure plate are connected to the sliders of the linear slide rail assemblies, and the pressure plate can slide vertically along the slide rails of the linear slide rail assemblies via the sliders.

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