Feeding device for straw packaging

Abstract

The utility model relates to the technical field of straw packaging equipment, and discloses a feeding device for straw packaging, which comprises a sleeve feeding hopper, a feeding control structure, a sleeve conveying belt, a first jacking air cylinder and a sleeve transferring structure, wherein a discharging port is formed in the bottom of the casing pipe feeding hopper, the feeding control structure is arranged corresponding to the discharging port, the casing pipe conveying belt is arranged at the bottom of the casing pipe feeding hopper, and the first jacking air cylinder is arranged below the casing pipe conveying belt and used for conveying a casing pipe on the casing pipe conveying belt to a first station; and the sleeve transferring structure is used for transferring the sleeve on the first station to the second station. By optimizing the feeding control, conveying positioning and transferring cooperation mechanism, the problems that in the prior art, efficiency is low, materials are prone to being stuck, and precision is poor are solved.

Description

Technical Field

[0001] This utility model relates to the field of straw packaging technology, and in particular to a feeding device for straw packaging. Background Technology

[0002] In the straw packaging production industry, traditional feeding devices mostly use vibratory feeders, manual arrangement, or simple slide structures to transport and position the straws. However, these technologies have the following significant problems:

[0003] Low efficiency: The feeding speed of the vibratory feeder is limited by the mechanical vibration frequency, and the sleeves are prone to disorder due to friction or collision, requiring frequent manual intervention and adjustment.

[0004] Poor positioning accuracy: The sleeve is prone to shifting or piling up during the slide conveyor, making it difficult to accurately align with the work station, resulting in misalignment of subsequent packaging or an increase in scrap rate.

[0005] High risk of material jamming: The feed inlet lacks an effective control structure, and the sleeve is prone to blockage at the discharge outlet, requiring machine shutdown for cleaning, which affects production continuity.

[0006] Based on the above problems, there is an urgent need for a high-efficiency, stable and flexibly adaptable straw packaging feeding device to improve the level of automation and production quality. Utility Model Content

[0007] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a feeding device for straw packaging, which solves the problems of low efficiency, easy jamming, and poor accuracy in the prior art by optimizing the feeding control, conveying positioning and transfer coordination mechanism.

[0008] The present invention adopts the following technical solution:

[0009] A feeding device for straw packaging includes a straw feeding hopper, a feeding control structure, a straw conveyor belt, a first top-feeding cylinder, and a straw transfer structure. The bottom of the straw feeding hopper has a discharge port, the feeding control structure is positioned corresponding to the discharge port, the straw conveyor belt is located at the bottom of the straw feeding hopper, the first top-feeding cylinder is located below the straw conveyor belt and is used to convey the straws on the straw conveyor belt to a first station, and the straw transfer structure is used to transfer the straws from the first station to a second station.

[0010] Preferably, in the above-mentioned feeding device for straw packaging, the feeding control structure includes a power unit, a material sensor, a rotating wheel, and a controller. The material sensor is positioned corresponding to the location of the sleeve conveyor belt and is used to detect material signals on the sleeve conveyor belt. The rotating wheel is positioned corresponding to the location of the discharge port. The power unit is connected to the rotating wheel, and the rotating wheel has at least two grooves, the diameter of which is at least able to accommodate one sleeve. The controller is signal-connected to both the material sensor and the power unit and is used to control the operation of the power unit according to the material signals to replenish sleeves onto the sleeve conveyor belt.

[0011] Preferably, in the above-mentioned feeding device for straw packaging, a baffle is provided on the sleeve conveyor belt, the bottom of the sleeve conveyor belt is the first working position, and the first top material cylinder is arranged corresponding to the position of the baffle.

[0012] Preferably, in the above-mentioned feeding device for straw packaging, the sleeve transfer structure includes a linear motor, a first telescopic cylinder, and a pneumatic gripper. The first telescopic cylinder is mounted on the linear motor, and the pneumatic gripper is fixedly mounted on the telescopic end of the first telescopic cylinder.

[0013] Preferably, in the above-mentioned feeding device for straw packaging, the power unit includes a mounting assembly, a servo motor, and a chain drive structure; wherein the servo motor and the chain drive structure are mounted on opposite sides of the mounting assembly, the servo motor is connected to the chain drive structure, and the chain drive structure is connected to the rotating wheel.

[0014] Preferably, in the above-mentioned feeding device for straw packaging, the chain drive structure includes a large sprocket, a small sprocket, and a drive chain; wherein, the servo motor is connected to the large sprocket, the large sprocket is connected to the small sprocket through the drive chain, and the small sprocket is connected to the rotating wheel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention achieves continuous flow of the tubing from storage to positioning through the coordinated design of the feeding hopper, conveyor belt, and cylinder, avoiding frequent manual replenishment and significantly improving production cycle time. The feeding control structure can adjust the discharge frequency according to production needs, adapting to production lines with different speeds. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a feeding device for straw packaging according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the electronic component connections of a feeding device for straw packaging according to an embodiment of the present utility model;

[0020] Figure 3 This is a rear view of a feeding device for straw packaging according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Sleeve feed hopper; 2. Feed control structure; 21. Power unit; 211. Mounting components; 212. Servo motor; 213. Chain drive structure; 2131. Large sprocket; 2132. Small sprocket; 2133. Drive chain; 22. Material sensor; 23. Rotating wheel; 24. Controller; 25. Groove; 3. Sleeve conveyor belt; 4. First top-loading cylinder; 5. Sleeve transfer structure; 51. Linear motor; 52. First telescopic cylinder; 53. Pneumatic gripper; 6. Discharge port; 7. Baffle; 8. Sleeve. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention will now be further described with reference to the accompanying drawings.

[0027] This utility model embodiment provides a feeding device for straw packaging, such as... Figure 1 As shown, the feeding device for straw packaging includes a sleeve feeding hopper 1, a feeding control structure 2, a sleeve conveyor belt 3, a first top-feeding cylinder 4, and a sleeve transfer structure 5. The bottom of the sleeve feeding hopper 1 is provided with a discharge port 6, and the feeding control structure 2 is provided corresponding to the discharge port 6. The sleeve conveyor belt 3 is provided at the bottom of the sleeve feeding hopper 1, and the first top-feeding cylinder 4 is provided below the sleeve conveyor belt 3 to transport the sleeves 8 on the sleeve conveyor belt 3 to the first station. The sleeve transfer structure 5 is used to transfer the sleeves at the first station to the second station.

[0028] In this embodiment, the casing feed hopper 1 serves as a storage container for casings, with stacked casings awaiting use inside. The discharge port 6 is located at the bottom of the feed hopper, allowing the casings to fall naturally under gravity. The feeding control structure 2 is located at the discharge port 6, and can control the number of casings discharged at one time through a mechanical baffle or solenoid valve to prevent casing accumulation or jamming. The casing conveyor belt 3 receives the casings 8 falling from the discharge port 6 and transports them at a uniform speed to the designated position. The first lifting cylinder 4 is located below the casing conveyor belt 3. When the casing reaches the predetermined station, the cylinder lifts upward, transferring the casing from the casing conveyor belt 3 to the first station (the pick-up position of the casing transfer structure 5), completing the initial positioning of the casing. The sleeve transfer structure 5 can use a mechanical gripper, vacuum suction cup or push rod mechanism to grab the sleeve on the first station and transfer it to the second station (such as the assembly position of the straw packaging film) through a linear module or rotating arm to ensure that the sleeve and the straw packaging film are accurately aligned.

[0029] In some embodiments, such as Figure 1 and Figure 2 As shown, the feeding control structure 2 includes a power unit 21, a material sensor 22, a rotating wheel 23, and a controller 24. The material sensor 22 is positioned corresponding to the location of the sleeve conveyor belt 3 and is used to detect material signals on the sleeve conveyor belt 3. The rotating wheel 23 is positioned corresponding to the location of the discharge port. The power unit 21 is connected to the rotating wheel 23. The rotating wheel 23 is provided with at least two grooves 25, and the diameter of the grooves 25 is at least able to accommodate one sleeve. The controller 24 is signal-connected to both the material sensor 22 and the power unit 21 and is used to control the operation of the power unit 21 according to the material signals to replenish sleeves on the sleeve conveyor belt 3.

[0030] The feeding control structure 2 achieves precise quantitative feeding of sleeves through closed-loop control of sensor feedback and mechanical linkage. Material sensor 22 detects the material status on the sleeve conveyor belt 3 in real time (such as missing sleeves, accumulation, or insufficient quantity) and transmits the signal to controller 24. After receiving the sensor signal, controller 24 determines whether to trigger a replenishment action through logical judgment (e.g., setting a "minimum material threshold"). Upon receiving the controller command, power unit 21 drives rotating wheel 23 to rotate. Grooves 25 (at least two) evenly distributed on the surface of rotating wheel 23 align sequentially with discharge port 6 during rotation. The size of each groove can be designed to accommodate only a single sleeve, ensuring quantitative feeding each time. When a groove 25 passes the discharge port, the sleeve falls into the groove due to gravity and is carried away from the discharge port area by the rotating wheel 23. Material sensor 22 continuously monitors the number of sleeves on sleeve conveyor belt 3. If the number is still lower than the set value, controller 24 triggers power unit 21 to replenish the material again until the required quantity is reached.

[0031] In some embodiments, such as Figure 1As shown, a baffle 207 is provided on the sleeve conveyor belt 3, and the bottom of the sleeve conveyor belt 3 is the first working position. The first top material cylinder 4 is arranged in the position corresponding to the baffle 207.

[0032] In this embodiment, the baffle 207 is used to block the sleeves on the sleeve conveyor belt 3, wherein the sleeve conveyor belt 3 is arranged at an incline. The function of the baffle 207 is to separate the first station on the sleeve conveyor belt 3 so that the first lifting cylinder 4 can lift the sleeve obliquely upward, and the sleeve falls into the first station under the action of gravity, so that the sleeve transfer structure 5 can transfer the sleeve in the first station to the second station (packaging station).

[0033] In some embodiments, such as Figure 1 As shown, the sleeve transfer structure 5 includes a linear motor 51, a first telescopic cylinder 52, and a pneumatic gripper 53. The first telescopic cylinder 52 is mounted on the linear motor 51, and the pneumatic gripper 53 is fixedly mounted on the telescopic end of the first telescopic cylinder 52.

[0034] In this embodiment, the sleeve transfer structure 5 achieves efficient and precise transfer of the sleeve from the first station to the second station through a composite motion design of linear motor + telescopic cylinder + pneumatic gripper. The specific process is as follows:

[0035] Linear motor 51 moves horizontally along the guide rail according to a preset program, driving the first telescopic cylinder 52 and pneumatic gripper 53 to directly above the first workstation (sleeve positioning point). The linear motor uses closed-loop control (such as encoder feedback) to ensure that the horizontal movement positioning error is ≤0.1mm. After receiving the gripping signal, the piston rod of the first telescopic cylinder 52 extends downward, causing the pneumatic gripper 53 to descend vertically to the sleeve surface. After contacting the sleeve, the pneumatic gripper 53 closes under air pressure, gripping the outer or inner wall of the sleeve (depending on the gripper design), completing the gripping action. The piston rod of the first telescopic cylinder 52 retracts, raising the gripped sleeve to a safe height to avoid interference with the conveyor belt or other components. Linear motor 51 drives the entire assembly to move horizontally to the second workstation (such as the straw packaging film assembly position).

[0036] In some embodiments, such as Figure 3As shown, the power unit 21 includes a mounting assembly 211, a servo motor 212, and a chain drive structure 213. The servo motor 212 and the chain drive structure 213 are mounted on opposite sides of the mounting assembly 211. The servo motor 212 is connected to the chain drive structure 213, and the chain drive structure 213 is connected to the rotating wheel 23. The power transmission path of the power unit 21 is: servo motor 212 → chain drive structure 213 → rotating wheel 23. The mounting assembly 211 can be a high-strength steel plate or an aluminum alloy frame, fixing the servo motor and the chain drive structure on opposite sides to form a stable force support, reducing the impact of vibration on transmission accuracy. The servo motor 212 can have a built-in encoder to provide real-time feedback of speed and angle signals to the driver. After comparing with the PLC command value, the output is dynamically adjusted to achieve millimeter-level positioning accuracy of the rotating wheel.

[0037] In some embodiments, such as Figure 3 As shown, the chain drive structure 213 includes a large sprocket 2131, a small sprocket 2132, and a drive chain 2133; wherein, the servo motor 212 is connected to the large sprocket 2131, the large sprocket 2131 is connected to the small sprocket 2132 through the drive chain 2133, and the small sprocket 2132 is connected to the rotating wheel body 23.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A feeding device for straw packaging, characterized in that, The device includes a casing feed hopper, a feeding control structure, a casing conveyor belt, a first top-loading cylinder, and a casing transfer structure. The casing feed hopper has a discharge port at its bottom, and the feeding control structure is positioned corresponding to the discharge port. The casing conveyor belt is located at the bottom of the casing feed hopper. The first top-loading cylinder is positioned below the casing conveyor belt and is used to transport the casings on the casing conveyor belt to a first working position. The casing transfer structure is used to transfer the casings from the first working position to a second working position.

2. The feeding device for straw packaging according to claim 1, characterized in that, The feeding control structure includes a power unit, a material sensor, a rotating wheel, and a controller. The material sensor is positioned corresponding to the location of the sleeve conveyor belt and is used to detect material signals on the sleeve conveyor belt. The rotating wheel is positioned corresponding to the location of the discharge port. The power unit is connected to the rotating wheel, and the rotating wheel has at least two grooves, the diameter of which is at least large enough to accommodate one sleeve. The controller is signal-connected to both the material sensor and the power unit and is used to control the operation of the power unit according to the material signals to replenish sleeves onto the sleeve conveyor belt.

3. The feeding device for straw packaging according to claim 1, characterized in that, The sleeve conveyor belt is equipped with a baffle, the bottom of the sleeve conveyor belt is the first working position, and the first top material cylinder is arranged corresponding to the position of the baffle.

4. The feeding device for straw packaging according to claim 1, characterized in that, The sleeve transfer structure includes a linear motor, a first telescopic cylinder, and a pneumatic gripper. The first telescopic cylinder is mounted on the linear motor, and the pneumatic gripper is fixedly mounted on the telescopic end of the first telescopic cylinder.

5. The feeding device for straw packaging according to claim 2, characterized in that, The power unit includes a mounting assembly, a servo motor, and a chain drive structure; wherein the servo motor and the chain drive structure are mounted on opposite sides of the mounting assembly, the servo motor is connected to the chain drive structure, and the chain drive structure is connected to the rotating wheel.

6. The feeding device for straw packaging according to claim 5, characterized in that, The chain drive structure includes a large sprocket, a small sprocket, and a drive chain; wherein, the servo motor is connected to the large sprocket, the large sprocket is connected to the small sprocket through the drive chain, and the small sprocket is connected to the rotating wheel body.

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