A semi-automatic packing machine for tobacco leaf pre-classification

Abstract

The utility model discloses a kind of tobacco leaf pre-classification semi-automatic packing machines, it is related to packaging machinery technical field, scheme includes: pre-compression chamber is equipped in rack, bottom is equipped with universal wheel, two sides have the conveying port of intercommunication chamber and outside, chamber is used to place bale;Side stoppage conveying frame is separately arranged at the conveying port of rack two sides, bottom is rotatably connected with the edge of rack bottom, can assist bale to enter chamber, also can overturn to open and close conveying port;Pre-compression device is equipped on rack top, including pre-pressing plate and power device, pre-pressing plate is horizontally arranged, power device is transmission connection with it to control its vertical reciprocating motion;Control device is equipped on pre-compression device, and it is control connection with power device to control its start and stop.The packing machine can be flexibly moved to adapt to off-site classification point, saves artificial bale moving link, reduces compaction labor intensity, guarantees bale density uniform, reduces packing bag and rope loss, improves packing efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a semi-automatic packing machine for pre-grading tobacco leaves. Background Technology

[0002] In recent years, the tobacco leaf purchasing model has been innovated. The "off-site grading + centralized transportation + representative delivery" model has been widely adopted in various tobacco-producing areas, with a large amount of preliminary grading and pre-packaging of tobacco leaves being transferred to township and village-level off-site grading points. At present, off-site grading points are mostly temporary, with simple sites and limited equipment. Packing is mainly done manually, and the weight of the tobacco bales varies from 1 to 40 kg. The traditional process is as follows: packing personnel carry the pre-graded tobacco leaves into packaging bags, sort them, manually tighten the ropes, and repeatedly compress the tobacco bales to reduce their volume and secure them, ultimately forming "candy-shaped" tobacco bales. Small cloth loops on the edges of the packaging bags are used to attach quality traceability QR codes.

[0003] The existing technology has significant drawbacks: First, there is a lack of packaging equipment adapted to off-site grading points. Most existing equipment consists of standardized, fixed, high-power models used in tobacco station warehouses, which cannot adapt to the highly mobile and space-constrained environment off-site. Second, manual packaging is inefficient and labor-intensive. Tobacco leaves are bulky and have low moisture content, making them difficult to compress. Repeatedly pulling ropes to tighten the packaging is time-consuming and laborious, resulting in extremely high worker fatigue with an average daily workload of hundreds of tobacco bales. Third, the compaction of tobacco bales is uneven, and the quality is unstable, affecting subsequent weighing, transportation, and storage safety. Fourth, there is high packaging bag loss. The friction from manually pulling ropes generates heat, which can easily lead to rope breakage and bag damage, increasing material costs. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a semi-automatic baling machine for pre-grading tobacco leaves.

[0005] To achieve the above objectives, this utility model provides a semi-automatic pre-grading and baling machine for tobacco leaves, comprising: The frame has a pre-compression chamber inside and casters at the bottom. Conveying ports are provided on both sides of the frame. The conveying ports are used to connect the pre-compression chamber to the outside space. The pre-compression chamber is used to hold cigarette packs. Side conveyor frames are respectively installed at the conveying ports on both sides of the frame. The bottom of the side conveyor frames is rotatably connected to the bottom edge of the frame. The side conveyor frames are used to assist in conveying the cigarette packs into the pre-compression chamber and to perform a flipping motion that moves closer to and away from the frame to open and close the conveying ports. A pre-compression device is disposed on the top of the frame and includes a pre-compression plate and a power device. The pre-compression plate is horizontally disposed and the power device is connected to the pre-compression plate for transmission to control the pre-compression plate to perform vertical reciprocating motion. A control device is disposed on the pre-compression device, and the control device is connected to the power device to control the start and stop of the power device.

[0006] Preferably, the side conveyor frame includes a first frame and a plurality of rollers arranged at intervals along the conveying path; The axes of the plurality of rollers are parallel to each other, and the two ends of each roller are rotatably connected to the two sides of the first frame. The axis of the roller is perpendicular to the cigarette pack conveying direction of the side baffle conveyor frame, so as to assist the sliding of the cigarette pack by the rotation of the roller.

[0007] Preferably, the power unit includes an air compressor, a cylinder, and a piston rod. The air compressor is disposed on the outer periphery of the frame, the cylinder is disposed on the top of the frame, one end of the piston rod is drivenly connected to the cylinder, and the other end is fixedly connected to the top of the preload plate. The air compressor is powered by the cylinder to provide compressed air, and the cylinder controls the piston rod to perform vertical reciprocating motion.

[0008] Preferably, four casters are provided, and they are respectively located near the four corner edges of the bottom of the frame; Two of the casters are provided with foot brake locking structures, which are used to prevent the casters from rotating.

[0009] Preferably, the rotation angle of the side conveyor frame is ≥90°.

[0010] Preferably, the control device includes a handle, which is connected to the cylinder for manual control of the cylinder's movement to achieve downward and upward movement of the piston rod.

[0011] Preferably, the frame is configured as a frame structure, and a locking structure is provided on the side where the conveying port is provided. The locking structure is located near the top of the frame and is detachably connected to the end of the side conveyor away from its own rotational connection.

[0012] Preferably, the bottom of the side conveyor frame is rotatably connected to the bottom of the frame via a hinge.

[0013] Preferably, a limiting structure is provided on the frame to prevent the preload plate from moving further downward.

[0014] Preferably, the control device further includes a pressure regulating valve, which is disposed on the air compressor and is used to regulate the air pressure output by the air compressor.

[0015] Based on this, the beneficial effects of this utility model are as follows: This utility model, through its side-mounted conveyor frame structure, can stably support tobacco leaves and guide their conveying direction, directly eliminating the need for manual handling and preventing the leaves from scattering during transport. Combined with omnidirectional wheels, it significantly improves the equipment's flexibility, adapting to temporary or space-constrained scenarios at off-site grading points, facilitating flexible repositioning. The manual compression method allows for precise control of the tobacco bale compaction, reducing the labor intensity of repeatedly pulling ropes while ensuring uniform bale density, minimizing rope breakage and bag wear. It balances ease of operation with packaging quality, effectively solving the problems of low efficiency and high loss associated with traditional manual packaging. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This schematic diagram illustrates the structure of a packing machine according to one embodiment of the present invention. Figure 2 This invention is shown schematically. Figure 1 A magnified view of a section at point A in the middle; Figure 3 This diagram illustrates the usage state of a packaging machine according to one embodiment of the present invention. Explanation of reference numerals in the attached drawings: 10-frame, 101-pre-compression chamber, 102-caster wheel, 103-conveying port, 104-base plate, 105-top plate, 106-locking structure, 107-protruding structure, 20-side conveyor frame, 201-first frame, 202-roller, 30-pre-compression device, 301-pre-pressure plate, 302-power unit, 3021-air compressor, 3022-cylinder, 3023-piston rod, 40-control device, 401-handle. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a," "the," and "the" as used in the embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0019] It should be understood that although the terms first, second, third, etc., may be used to describe related structures in the embodiments of this application, these related structures should not be limited to these terms. These terms are only used to distinguish related structures from each other.

[0020] Depending on the context, the word "if" as used here can be interpreted as "when" or "when". Similarly, depending on the context, the phrase "if determined" can be interpreted as "when determined" or "when (the condition or event of the statement) is detected".

[0021] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is formed "upper" or "lower" of another element, it can not only be formed directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element.

[0022] Figure 1 This diagram illustrates the structure of a packing machine according to one embodiment of the present invention. Figure 2 This invention is shown schematically. Figure 1 A magnified view of a portion of point A in the middle. Figure 3 This diagram illustrates the usage state of a packaging machine according to one embodiment of the present invention, as shown below. Figure 1-3 As shown, this utility model discloses a semi-automatic pre-grading and baling machine for tobacco leaves, comprising: The frame 10 has a pre-compression chamber 101 inside and casters 102 at the bottom. Conveying ports 103 are provided on both sides of the frame 10. The conveying ports 103 are used to connect the pre-compression chamber 101 with the outside space and to allow the cigarette pack to be compressed to enter and the compressed cigarette pack to be removed. The pre-compression chamber 101 is used to hold the cigarette pack. The side conveyor frame 20 is provided at the conveying ports 103 on both sides of the frame 10. The bottom of the side conveyor frame 20 is rotatably connected to the bottom edge of the frame 10. The side conveyor frame 20 is used to assist in conveying the cigarette pack into the pre-compression chamber 101 and to perform a flipping motion that moves closer to and away from the frame 10 to open and close the conveying ports 103. The pre-compression device 30 is located on the top of the frame 10 and includes a pre-compression plate 301 and a power device 302. The pre-compression plate 301 is horizontally arranged, and the power device 302 is connected to the pre-compression plate 301 to control the pre-compression plate 301 to perform vertical reciprocating motion. A control device 40 is disposed on the pre-compression device 30, and the control device 40 is connected to the power device 302 to control the start and stop of the power device 302.

[0023] Specifically, the frame 10 is a frame structure, which is formed by welding multiple carbon steel square tubes end to end to form a rectangular steel frame structure, and a rust-proof layer can be sprayed on its surface. The dimensions of the frame 10 are 1200mm long × 600mm wide × 800mm high. The frame 10 has a bottom plate 104 at the bottom and a top plate 105 at the top. Multiple carbon steel square tubes are installed on the top plane of the bottom plate 104, and casters 102 are rotatably installed on the bottom plane of the bottom plate 104. The pre-compression device 30 is installed on the top plate 105, and the conveying port 103 is located on the side of the frame 10 with the long side. The bottom plate 104 of the frame 10 can support the tobacco pack, and the pre-compression chamber 101 and the frame limit the compression shape of the tobacco pack.

[0024] Four casters 102 are provided, located near the four corners of the base plate 104. The casters 102 are made of high-strength polyurethane and have a diameter of 100mm. The casters 102 can rotate at any angle, thus enabling the baling machine to move flexibly. At the same time, two of the casters 102 are equipped with foot brake locking structures (not shown in the figure). When the baling machine is moved into place, the worker steps on the foot brake locking structure, which makes it fit tightly against the caster 102. The friction restricts the rotation of the caster 102, thus making the baling machine stand still. However, when the baling machine needs to be moved again, the worker lifts his foot to raise the foot brake locking structure, which makes it disengage from the caster 102, thus enabling the caster 102 to rotate freely.

[0025] The pre-compression plate 301 is a combination of carbon steel and wood. The carbon steel serves as the frame of the pre-compression plate 301 and is fixed to the whole wood board, which can prevent the wood board from deforming during compression, improve its strength, and ensure uniform distribution of the compressing force. The bottom plane area of ​​the pre-compression plate 301 is consistent with the cross-sectional area of ​​the pre-compression chamber 101, ensuring that the tobacco packs inside can be completely compressed.

[0026] Furthermore, the side conveyor frame 20 includes a first frame 201 and a plurality of rollers 202 arranged at intervals along the conveying path; Multiple rollers 202 have parallel axes, and the two ends of each roller 202 are rotatably connected to the two sides of the first frame 201. The axis of the roller 202 is perpendicular to the tobacco pack conveying direction of the side conveyor frame 20, so as to assist the tobacco pack sliding by rotating the roller 202.

[0027] Specifically, the first frame 201 is formed by welding two horizontally spaced and two vertically spaced carbon steel square tubes end to end. One horizontal end of the first frame 201 is connected to the side edge of the conveying port of the base plate 104 by a hinge, so that the first frame 201 can rotate around the connection point with the base plate 104 as the center, moving closer to and away from the top of the frame 10, and its rotation angle range is ≥90°.

[0028] Roller 202 is a galvanized steel roller, which is set between two vertically arranged carbon steel square tubes of the first frame 201 and is rotatably connected to it through anti-slip bearings. The diameter of roller 202 is 60mm, and the distance between multiple rollers 202 is 70-90mm. When the first frame 201 is flipped away from the top of the frame 10, the top of the first frame 201 contacts the ground. At this time, the worker drags the cigarette pack to place it on the first frame 201, and by gently pushing it, the cigarette pack can be conveyed with the rotation of roller 202 until it enters the pre-compression chamber 101 and is placed on the base plate 104.

[0029] The side conveyor 20 can save workers time from repeated handling, reduce physical exertion, lighten the burden on workers, and improve overall work efficiency.

[0030] Furthermore, the power unit 302 includes an air compressor 3021, a cylinder 3022, and a piston rod 3023. The air compressor 3021 is disposed on the outer periphery of the frame 10, the cylinder 3022 is disposed on the top of the frame 10, specifically mounted on the top plane of the top plate 105, one end of the piston rod 3023 is connected to the cylinder 3022 for transmission, and the other end passes through the top plate 105 and is fixedly connected to the top of the preload plate 301. The air compressor 3021 is powered by the cylinder 3022 to provide compressed air. The cylinder 3022 controls the piston rod 3023 to perform vertical reciprocating motion, thereby moving the pre-compression plate 301 to compress the tobacco pack.

[0031] Specifically, the parameters of the air compressor 3021 are: rated power 0.75-1.3kW, voltage 220V, 50Hz, output air pressure 0.3-0.8MPa. When working, the air compressor 3021 provides the air source and enters the cylinder 3022 through the pipeline. The cylinder 3022 pushes the piston rod 3023 to move, which drives the pre-compression plate 301 to move to achieve compression.

[0032] Furthermore, the control device 40 includes a handle 401, which is connected to the cylinder 3022. The handle 401 is used to manually control the cylinder 3022 to move the piston rod 3023 downward and upward. By controlling the downward holding position and the downward holding time of the handle 401, the extension and retraction force and time of the cylinder 3022 can be controlled, realizing semi-automatic compression control and solving the drawbacks of traditional manual binding and compression that are time-consuming, labor-intensive, and damage to materials.

[0033] Furthermore, a locking structure 106 is provided on the side of the frame 10 where the conveyor port 103 is provided. The locking structure 106 is located near the top of the frame 10 and is detachably connected to the end of the side conveyor frame 20 away from its own rotational connection.

[0034] Specifically, the locking structure 106 can be a magnetic structure, which achieves side-attractive connection by setting magnets on the top of the frame 10 and the top of the side conveyor frame 20. The locking structure 106 can also connect the frame 10 and the side conveyor frame 20 by locking nuts or buckles. When the side conveyor frame 20 is in contact with the top of the frame 10, the two are fixedly connected by locking nuts or buckles.

[0035] In addition, during compression, the frame 10 does not have the two side walls of the conveying port 103, nor the two side baffle conveyor frames 20 as auxiliary structures for cigarette pack forming. Therefore, when the side baffle conveyor frames 20 are connected to the frame 10, it is necessary to ensure that the side baffle conveyor frames 20 are vertically set. An additional protruding structure 107 can be added to the top of the frame 10 to fill the gap between the side baffle conveyor frames 20 and the frame 10 when they are vertically set, so as to ensure that the side baffle conveyor frames 20 are vertically set while the two are connected.

[0036] Furthermore, a limiting structure (not shown in the figure) is provided on the frame 10. Specifically, it is set on the carbon steel square tube on the inner wall of the frame 10. When the pre-pressing plate 301 moves down a certain distance and contacts the limiting structure, the limiting structure prevents the pre-pressing plate 301 from moving further and avoids over-compression. By controlling the different heights of the limiting structure, the overall height of the cigarette pack compression molding can be limited, so as to achieve the uniformity of the shape of the cigarette pack after compression.

[0037] Additionally, a force sensor and an alarm can be added to the limit structure. When the tobacco pack is compressed to the correct position, the alarm will sound to remind the worker to stop the compression operation.

[0038] Furthermore, the control device 40 also includes a pressure regulating valve (not shown in the figure). The pressure regulating valve is installed on the air compressor 3021, specifically on the pipeline connecting the air compressor 3021 and the cylinder 3022. By controlling the opening and closing degree of the pressure regulating valve, the output pressure of the air compressor 3021 is adjusted, thereby realizing the adjustment of the working air pressure of the cylinder 3022.

[0039] In summary, the universal wheels 102 of this utility model improve the flexibility of the frame 10, making it adaptable to temporary and space-constrained scenarios at off-site grading points, facilitating flexible movement and position adjustment. Simultaneously, the side conveyor frame 20 and rollers 202 assist in the entry of tobacco bales into the pre-compression chamber 101, reducing manual handling and improving conveying efficiency. The control device 40 manually controls the movement of the pre-compression plate 301 to compress the tobacco leaves, avoiding the laborious manual packing and the damage caused by repeated compression and friction on the packaging bags and ropes. The semi-automatic packing machine provided by this utility model effectively solves the problems of unsuitability of fully automatic packing machines for off-site grading points, high labor intensity, and low efficiency of manual packing at off-site locations.

[0040] The above description is merely a preferred embodiment of this application. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A semi-automatic pre-grading and baling machine for tobacco leaves, characterized in that, include: The frame has a pre-compression chamber inside and casters at the bottom. Conveying ports are provided on both sides of the frame. The conveying ports are used to connect the pre-compression chamber to the outside space. The pre-compression chamber is used to hold cigarette packs. Side conveyor frames are respectively installed at the conveying ports on both sides of the frame. The bottom of the side conveyor frames is rotatably connected to the bottom edge of the frame. The side conveyor frames are used to assist in conveying the cigarette packs into the pre-compression chamber and to perform a flipping motion that moves closer to and away from the frame to open and close the conveying ports. A pre-compression device is disposed on the top of the frame and includes a pre-compression plate and a power device. The pre-compression plate is horizontally disposed and the power device is connected to the pre-compression plate for transmission to control the pre-compression plate to perform vertical reciprocating motion. A control device is disposed on the pre-compression device, and the control device is connected to the power device to control the start and stop of the power device.

2. The semi-automatic pre-grading and baling machine for tobacco leaves according to claim 1, characterized in that, The side conveyor frame includes a first frame and multiple rollers arranged at intervals along the conveying path; The axes of the plurality of rollers are parallel to each other, and the two ends of each roller are rotatably connected to the two sides of the first frame. The axis of the roller is perpendicular to the cigarette pack conveying direction of the side baffle conveyor frame, so as to assist the sliding of the cigarette pack by the rotation of the roller.

3. The semi-automatic pre-grading and baling machine for tobacco leaves according to claim 1, characterized in that, The power unit includes an air compressor, a cylinder, and a piston rod. The air compressor is located on the outer periphery of the frame, the cylinder is located on the top of the frame, one end of the piston rod is connected to the cylinder for transmission, and the other end is fixedly connected to the top of the preload plate. The air compressor is powered by the cylinder to provide compressed air, and the cylinder controls the piston rod to perform vertical reciprocating motion.

4. A semi-automatic tobacco leaf pre-classifying baling machine according to claim 1, characterized in that, The omnidirectional wheels are provided, and are respectively located near the four corner edges of the bottom of the frame; Two of the casters are provided with foot brake locking structures, which are used to prevent the casters from rotating.

5. A semi-automatic tobacco leaf pre-classifying baling machine according to claim 1, characterized in that, The rotation angle of the side conveyor frame is ≥90°.

6. A semi-automatic pre-grading and baling machine for tobacco leaves according to claim 3, characterized in that, The control device includes a handle, which is connected to the cylinder. The handle is used to manually control the cylinder to move the piston rod downward and upward.

7. A semi-automatic pre-grading and baling machine for tobacco leaves according to claim 1, characterized in that, The frame is configured as a frame structure, and a locking structure is provided on the side where the conveying port is provided. The locking structure is located near the top of the frame and is detachably connected to the end of the side conveyor away from its own rotational connection.

8. A semi-automatic tobacco leaf pre-classifying baling machine according to claim 1, characterized in that, The bottom of the side conveyor frame is rotatably connected to the bottom of the frame via a hinge.

9. A semi-automatic pre-grading and baling machine for tobacco leaves according to claim 1, characterized in that, A limiting structure is provided on the frame to prevent the preload plate from moving further downward.

10. A semi-automatic tobacco leaf pre-classifying baling machine according to claim 3, characterized in that, The control device also includes a pressure regulating valve, which is installed on the air compressor and is used to regulate the air pressure output by the air compressor.

Images