Pneumatic automatic pressure regulating baling press

Abstract

The utility model discloses a kind of packing machines of pneumatic automatic pressure adjustment, it relates to packing equipment field, and it is a kind of packing machine of pneumatic automatic pressure adjustment in particular. Including first drive motor, feeding transmission belt, air cylinder, air pressure regulating valve, gas supply pipeline, pusher, pressure sensor, PLC, packing transmission belt, chain, support rib, limit plate, packing drive shaft, X axis stopper, Y axis stopper, packing control panel, second drive motor, output transmission belt. In the utility model, air cylinder is connected with gas supply pipeline by air pressure regulating valve, pusher is installed on air cylinder piston rod and moves by linear guide rail, and material is pushed into packaging box. Pressure sensor monitors pushing force and transmits signal to PLC, and PLC controls air pressure regulating valve to adjust air cylinder pressure according to feedback. Packing transmission belt drives packaging box to move to folding station, and short side folding leaf is completed by packing drive shaft, and long side folding leaf is pressed by packing control panel according to angle.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, specifically a pneumatic automatic pressure-adjusting packaging machine. Background Technology

[0002] Automated packaging equipment is widely used in industries such as logistics, food, electronics, and pharmaceuticals, primarily for folding, sealing, and packing materials or packaging boxes. Traditional packaging machines use mechanical transmission devices to compress and fold packaging materials through fixed pressure or manual pressure adjustment. To adapt to packaging needs of different sizes or materials, these machines require frequent pressure adjustments, resulting in cumbersome operation, low efficiency, and inability to meet the high-efficiency requirements of automated production lines. An existing carton packaging machine (publication number: CN218806817U) has the following drawbacks and requires further improvement.

[0003] Because the pressure regulation method in the mechanical device is fixed, it cannot be flexibly adjusted according to the weight, size, and material of the material, which may result in excessive or insufficient pressure. Excessive pressure may cause the packaging box to deform or break, while insufficient pressure may result in insecure packaging.

[0004] Frequent mechanical friction and heavy-load operation in traditional equipment make the transmission components of the device prone to wear, reducing the service life of the equipment and increasing maintenance costs. Utility Model Content

[0005] The main objective of this invention is to provide a pneumatically automatically adjustable pressure baling machine, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pneumatic automatic pressure-adjusting baling machine, wherein a first drive motor is installed on one side of the tail end of the feeding conveyor belt, a cylinder is installed on one side of the head end of the feeding conveyor belt, a baling conveyor belt is installed on the other side of the head end of the feeding conveyor belt, a PLC is installed on the top of the tail end of the baling conveyor belt, a second drive motor is installed on one side of the head end of the baling conveyor belt, and an output conveyor belt is installed on the top of the baling conveyor belt.

[0007] The cylinder is equipped with a pressure regulating valve at the bottom, and a gas source pipe is provided on one side of the pressure regulating valve. A pushing device is installed at the bottom of the gas source pipe, and a pressure sensor is installed on the outside of the pushing device.

[0008] The packing conveyor belt has a chain inside, a support rib on the outside of the packing conveyor belt, a limiting plate above the support rib, a packing drive shaft on one side of the limiting plate, an X-axis limiter on the inside of the packing conveyor belt, a Y-axis limiter on the top of the packing conveyor belt, and a packing control plate on the top of the Y-axis limiter.

[0009] Preferably, the air pressure regulating valve is fixed to the bottom of the cylinder by a threaded connection, and the output end of the air pressure regulating valve is connected to the air source pipeline through a snap-fit ​​interface. The air source pipeline is made of stainless steel and is fixed to the support rib by a pipe clamp.

[0010] Preferably, the pressure sensor is embedded in the top of the pushing device via a threaded interface. The pushing device has a groove at the installation position of the pressure sensor, the groove depth of which matches the installation length of the pressure sensor, and an airtight connection is achieved through a sealing ring.

[0011] Preferably, the limiting plate is connected to the support rib by screws through two symmetrical mounting holes. The limiting plate is made of high-strength aluminum alloy, and its surface is provided with anti-slip texture. Both ends are bent to form clamping grooves. The limiting plate is at an angle of 15° to the packing conveyor belt.

[0012] Preferably, the packing drive shaft is connected to the support rib via a flange, the bolt hole diameter of the flange is 6mm, and rolling bearings are provided at both ends of the packing drive shaft, the rolling bearings being fixed to the flange by snap rings.

[0013] Preferably, the chain is fixed to the packing drive shaft by a connecting pin with a diameter of 4mm. The inner side of the chain is provided with a roller, which is fixedly connected to the chain by a rolling bearing. The roller is in contact with the packing drive belt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the combination of a pressure regulating valve and a pressure sensor enables the cylinder to automatically adjust the pressure according to the weight, size, and material of the packaged item, thereby achieving precise packaging. The PLC controller receives data from the pressure sensor in real time and dynamically adjusts the cylinder's output pressure to ensure that the pressure for each package meets the packaging requirements. This avoids excessive pressure causing packaging box deformation or insufficient pressure leading to insecure packaging, significantly improving packaging quality and consistency.

[0016] In this invention, the rolling components of the chain and drive shaft are made of wear-resistant materials, extending the service life of the equipment and reducing maintenance costs. Meanwhile, the precise control of the PLC controller also reduces unnecessary component load, further improving the stability and reliability of the equipment operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of part A of the present invention;

[0019] Figure 3 This is a cross-sectional view of part B of the present invention.

[0020] In the diagram: 1. First drive motor; 2. Feeding conveyor belt; 3. Cylinder; 301. Air pressure regulating valve; 302. Air source pipeline; 303. Pushing device; 304. Pressure sensor; 4. PLC; 5. Packing conveyor belt; 501. Chain; 502. Support rib; 503. Limit plate; 504. Packing drive shaft; 505. X-axis limiter; 506. Y-axis limiter; 507. Packing control board; 6. Second drive motor; 7. Output conveyor belt. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example

[0025] Please see Figure 1-3 This utility model provides a technical solution:

[0026] A pneumatic automatic pressure-adjustable baling machine, wherein a first drive motor 1 is installed on one side of the tail end of the feeding conveyor belt 2, a cylinder 3 is installed on one side of the head end of the feeding conveyor belt 2, a baling conveyor belt 5 is installed on the other side of the head end of the feeding conveyor belt 2, a PLC 4 is installed on the top of the tail end of the baling conveyor belt 5, a second drive motor 6 is installed on one side of the head end of the baling conveyor belt 5, and an output conveyor belt 7 is installed on the top end of the baling conveyor belt 5.

[0027] The cylinder 3 is provided with a pressure regulating valve 301 at the bottom, and a gas source pipe 302 is provided on one side of the pressure regulating valve 301. A pushing device 303 is installed at the bottom of the gas source pipe 302, and a pressure sensor 304 is installed on the outside of the pushing device 303.

[0028] The packing conveyor belt 5 has a chain 501 inside, a support rib 502 on the outside of the packing conveyor belt 5, a limiting plate 503 above the support rib 502, a packing drive shaft 504 on one side of the limiting plate 503, an X-axis limiter 505 on the inside of the packing conveyor belt 5, a Y-axis limiter 506 on the top of the packing conveyor belt 5, and a packing control plate 507 on the top of the Y-axis limiter 506.

[0029] The feeding unit consists of a feeding conveyor belt and a first drive motor, primarily responsible for conveying materials from their initial position to the working area of ​​the pushing device. The first drive motor is bolted to the equipment frame to ensure stable positioning during operation. Its output shaft is connected to the rollers of the feeding conveyor belt via a key connection for power transmission. The tail end of the feeding conveyor belt is adjacent to a cylinder, allowing the material to move smoothly to the pushing area of ​​the pushing device under the drive of the conveyor belt, preventing accumulation or deviation. Through reasonable power distribution and precise positioning, the feeding unit efficiently transfers materials to the next working unit.

[0030] The pushing unit consists of a cylinder, a pressure regulating valve, an air supply pipeline, a pushing device, and a pressure sensor. Its main function is to push materials from the feeding conveyor belt into packaging boxes on the packaging conveyor belt. The bottom of the cylinder is threadedly connected to the pressure regulating valve, which adjusts the air pressure entering the cylinder to accommodate materials of different weights and materials. The output end of the pressure regulating valve is connected to the air supply pipeline via a snap-fit ​​interface, and the air supply pipeline is fixed to the support rib. The pushing device is mounted on the support rib via a linear guide rail made of high-precision wear-resistant material, ensuring stable and accurate linear movement of the pushing device. The pushing device is fixedly connected to the piston rod of the cylinder and moves along the guide rail under the reciprocating motion of the cylinder, pushing the material into the packaging box. A pressure sensor is installed on the outside of the pushing device. This sensor monitors the thrust of the cylinder in real time and transmits the data to the PLC controller. The PLC dynamically adjusts the air pressure output of the cylinder based on the feedback data, thereby ensuring smooth and safe pushing action and preventing damage to the materials and packaging boxes.

[0031] The packing unit consists of a packing conveyor belt, chain, support ribs, limit plates, a packing drive shaft, X-axis limiters, Y-axis limiters, and a packing control board. It is primarily used for folding and packing the packaging box. The packing conveyor belt is driven by a second drive motor, with power transmission achieved internally via a chain. The chain connects to the packing drive shaft, which is mounted on the support ribs via rolling bearings to ensure stable and efficient transmission. Support ribs are located on both sides of the packing conveyor belt to support the belt and other functional components. The limit plates are bolted to the support ribs to fix the position of the packaging box, preventing it from shifting or tilting during transmission. During the folding process, the packing drive shaft, controlled by a PLC, extends and retracts to fold the short side flaps of the packaging box into place. The folding of the long side flaps is completed by the packing control board, which is mounted on top of the Y-axis limiters. The Y-axis limiters are fixed to the packing conveyor belt via adjustable brackets to adjust the angle and position of the folding action, ensuring precise and secure folding of the packaging box.

[0032] The output unit consists of an output conveyor belt and a second drive motor, primarily responsible for transporting the folded and packaged boxes to the equipment outlet. The output conveyor belt, located at the end of the packaging conveyor belt and driven by the second drive motor, maintains the same speed as the packaging conveyor belt to prevent boxes from slipping or piling up during handover. Through reasonable speed control and a smooth transmission mechanism, the output conveyor belt efficiently delivers the packaged boxes, facilitating subsequent boxing or inspection processes.

[0033] The material is transported from its initial position via a feeding conveyor belt. The first drive motor provides power to the feeding conveyor belt, ensuring smooth and continuous movement of the material. The tail end of the feeding conveyor belt is adjacent to the pushing device. When the material moves to the pushing area of ​​the pushing device, a limit plate positions the material to ensure it is in the correct position and to prevent subsequent pushing operations from failing due to deviation.

[0034] Meanwhile, a pressure sensor installed on the outside of the pushing device monitors the material's position in real time. Once the material is detected as being in place, the sensor transmits a signal to the PLC controller. Upon receiving the signal, the PLC controls the cylinder to release air pressure, driving the pushing device to move linearly forward along the linear guide rail. The reciprocating motion of the pushing device precisely pushes the material into the packaging box on the packing conveyor belt, preparing it for the next folding process. The packaging box is placed on the packing conveyor belt, powered by a second drive motor, which transmits driving force through a chain, allowing the packaging box to move stably to the folding station. During the movement, an X-axis limiter restricts the packaging box's offset in the X-axis direction, ensuring that the packaging box remains at the center line of the conveyor belt. It is important to note that the cylinder's bottom is threadedly connected to an air pressure regulating valve. One end of the air pressure regulating valve is connected to the cylinder, and the other end is connected to an air source pipe via a snap-fit ​​interface, providing adjustable air pressure to the cylinder. The air source pipe is fixed to the equipment's support ribs to ensure stable air pressure transmission. The pushing device is mounted on the cylinder's piston rod and achieves precise linear motion via the linear guide rail, used to push the material into the packaging box. During operation, the pressure sensor monitors the thrust applied by the cylinder in real time and transmits the data to the PLC controller in the form of an electrical signal. The PLC compares the preset pressure parameters with the sensor feedback data. When a difference is detected between the actual pressure value and the set value, the PLC dynamically adjusts the output pressure of the pressure regulating valve by outputting a control signal. The adjusted pressure is then transmitted to the cylinder through the air supply pipeline, driving the pushing device to apply an appropriate amount of thrust, thereby achieving automatic pressure regulation.

[0035] When the packaging box reaches the folding station, the packing drive shaft begins its telescopic movement under the control of the PLC. This telescopic movement pushes the short side flaps of the packaging box inwards sequentially, ensuring they fit snugly against the inside of the box, forming the initial shape. Subsequently, the packing control board presses down on the long side flaps of the packaging box at a set angle. The packing control board is mounted on a Y-axis limiter, which is fixed to the packing conveyor belt via an adjustable bracket. This limiter allows adjustment of the pressing angle and position of the packing control board to accommodate packaging boxes of different sizes. The Y-axis limiter works in conjunction with the folding process to further secure the position of the packaging box, ensuring that the long side flaps are precisely pressed into the box.

[0036] After folding along both the short and long sides, the packaging box completes its overall folding process. During this process, the coordinated operation of the limiters and controller ensures the precision and stability of the folding action.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatically operated automatic pressure-adjustable baling machine, comprising a feeding conveyor belt (2), a cylinder (3), and a baling conveyor belt (5), characterized in that: A first drive motor (1) is installed on one side of the tail end of the feeding conveyor belt (2), a cylinder (3) is installed on one side of the head end of the feeding conveyor belt (2), a packing conveyor belt (5) is installed on the other side of the head end of the feeding conveyor belt (2), a PLC (4) is installed on the top of the tail end of the packing conveyor belt (5), a second drive motor (6) is installed on one side of the head end of the packing conveyor belt (5), and an output conveyor belt (7) is installed on the top of the packing conveyor belt (5). The cylinder (3) is provided with a pressure regulating valve (301) at the bottom, and a gas source pipe (302) is provided on one side of the pressure regulating valve (301). A pushing device (303) is installed at the bottom of the gas source pipe (302), and a pressure sensor (304) is installed on the outside of the pushing device (303). The packing conveyor belt (5) is provided with a chain (501) inside. The outer side of the packing conveyor belt (5) is provided with a support rib (502). A limiting plate (503) is provided above the support rib (502). A packing drive shaft (504) is provided on one side of the limiting plate (503). An X-axis limiter (505) is provided inside the packing conveyor belt (5). A Y-axis limiter (506) is provided at the top of the packing conveyor belt (5). A packing control plate (507) is provided at the top of the Y-axis limiter (506).

2. The pneumatically operated automatic pressure-adjusting baling machine according to claim 1, characterized in that: The air pressure regulating valve (301) is fixed to the bottom of the cylinder (3) by a threaded connection. The output end of the air pressure regulating valve (301) is connected to the air source pipe (302) through a snap-fit ​​interface. The air source pipe (302) is made of stainless steel and is fixed to the support rib (502) by a pipe clamp.

3. A pneumatically operated automatic pressure-adjusting baling machine according to claim 1, characterized in that: The pressure sensor (304) is embedded in the top of the pusher (303) through a threaded interface. The pusher (303) has a groove at the installation position of the pressure sensor (304). The depth of the groove matches the installation length of the pressure sensor (304), and an airtight connection is achieved through a sealing ring.

4. A pneumatically operated automatic pressure-adjusting baling machine according to claim 1, characterized in that: The limiting plate (503) is connected to the support rib (502) by screws through two symmetrical mounting holes. The limiting plate (503) is made of high-strength aluminum alloy, and its surface is provided with anti-slip texture. Both ends are bent to form clamping grooves. The limiting plate (503) is at an angle of 15° to the packing conveyor belt (5).

5. A pneumatically automatically adjustable pressure baling machine according to claim 1, characterized in that: The packing drive shaft (504) is connected to the support rib (502) via a flange. The bolt hole diameter of the flange is 6mm. Rolling bearings are provided at both ends of the packing drive shaft (504), and the rolling bearings are fixed to the flange by snap rings.

6. A pneumatically automatically adjustable pressure baling machine according to claim 1, characterized in that: The chain (501) is fixed to the packing drive shaft (504) by a connecting pin with a diameter of 4mm. The inner side of the chain (501) is provided with a roller, which is fixedly connected to the chain (501) by a rolling bearing. The roller is in contact with the packing transmission belt (5).

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