Guide cylinder with blowing device for high-speed six-side vacuum packaging machine

Abstract

The utility model discloses a high-speed six-side vacuum packaging machine material guiding cylinder with an air blowing device, which comprises a cylinder body with an inlet and an outlet, a connecting flange is arranged at the top of the cylinder body, the cylinder body is fixedly connected to the end part of an equipment lifting arm through the connecting flange, the equipment lifting arm is arranged on one side of a bag opening device of a bag supply mechanism, and the air blowing device is arranged on the other side of the bag supply mechanism. An open hole is formed in one side of the upper end part of the cylinder body, an air blowing pipe extending into the cylinder body is mounted at the open hole, an air inlet of the air blowing pipe is connected to an air blowing pipeline through an air pipe joint, and an air outlet of the air blowing pipe is positioned at an outlet of the cylinder body. The material guiding barrel is reasonable in structural design, the air blowing pipe is arranged in the barrel body, a tightly attached material bag can be blown open in advance so that the material guiding barrel can be rapidly inserted into the bag, meanwhile, stability in the bagging process is guaranteed, the bag falling phenomenon is avoided, and the working efficiency of the packaging machine is improved to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment structure technology, specifically a guide cylinder with an air blowing device for a high-speed six-sided vacuum packaging machine. Background Technology

[0002] In the packaging industry, hexahedral vacuum packaging bags are a common form of packaging, also known as pleated or M-side bags. In their initial state, the two large sides of this type of bag adhere tightly together. This tight adhesion is particularly pronounced when aluminum foil bags are made from aluminum foil, which itself has relatively high rigidity.

[0003] In actual packaging operations, the guide cylinder of the packaging machine needs to be inserted into the packaging bag to complete the subsequent filling operation. However, because the hexahedral vacuum packaging bag (especially aluminum foil bag) is initially tightly fitted and has high rigidity, a large frictional force is generated between the packaging bag and the guide cylinder during the insertion process. This frictional force can easily cause the packaging bag to detach from the guide cylinder, i.e., bag detachment; or it can make the speed at which the guide cylinder inserts into the packaging bag extremely slow.

[0004] Once the bag comes off, the operator needs to re-bag it, which not only increases labor costs but also disrupts the normal operation of the packaging machine. On the other hand, a slow insertion speed will directly lead to a slower overall working rhythm of the packaging machine and a reduction in the number of packages completed per unit time. Both of these situations greatly affect the working efficiency of the packaging machine and reduce production benefits.

[0005] In order to effectively improve the working efficiency of packaging machines, while ensuring the stability of the bagging process and avoiding problems such as slow bag removal and insertion speed, this utility model provides a guide cylinder with an air blowing device. Utility Model Content

[0006] The purpose of this invention is to overcome the defects and deficiencies of the existing technology and provide a guide cylinder with an air blowing device for a high-speed six-sided vacuum packaging machine, thus solving various problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A guide cylinder for a high-speed six-sided vacuum packaging machine with an air blowing device is characterized in that: it includes a cylinder with an inlet and an outlet; a connecting flange is installed on the top of the cylinder and is fixed to the end of the lifting arm of the equipment through the connecting flange; the lifting arm of the equipment is provided with a bag opening device of the bag feeding mechanism on one side; an opening is provided on one side of the upper end of the cylinder, and an air blowing pipe extending into the cylinder is installed at the opening; the air inlet of the air blowing pipe is connected to the air blowing pipeline through an air pipe connector; and the air outlet of the air blowing pipe is located at the outlet of the cylinder.

[0009] The connecting flange is a plate with a square hole in the middle and several holes on both sides, welded to the upper end of the cylinder. The rear cylinder wall is welded to the upper end of the square hole on the rear side of the connecting flange, flush with the connecting flange. The side cylinder walls are mirror-welded to the upper ends of the square holes on the left and right sides of the connecting flange, flush with the connecting flange. The front cylinder wall is welded to the upper end of the square hole on the rear side of the connecting flange, flush with the connecting flange.

[0010] The air blowing pipe is an inverted L-shaped pipe with a connector installed at the horizontal end of its upper end, and is fixed to the opening through the connector.

[0011] The bottom outlet of the cylinder has a tapered structure that gradually expands to open the bag opening.

[0012] The bottom outlet of the cylinder is symmetrically inclined inward at both ends in a conical shape, with an inclination angle of 15°-30°.

[0013] The bottom end of the air blowing pipe is provided with a horizontally arranged air outlet pipe, and the bottom end face of the air outlet pipe is provided with a plurality of spaced bottom air outlet holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention innovatively incorporates an air-blowing pipe structure inside the packaging machine's cylinder. Its core function is to precisely blow gas at a certain pressure into tightly sealed material bags. This gas rapidly diffuses within the bag, acting evenly on all inner walls, quickly inflating the originally tightly sealed bag. After inflation, the bag opening naturally widens, creating favorable conditions for the insertion of the guide cylinder. With this increased space, the guide cylinder can then be inserted into the bag more quickly and smoothly, significantly reducing the bagging operation time.

[0016] Furthermore, during the bagging process, the inflated material bag forms an internal support structure, which stably maintains the bag opening, thus ensuring the stability of the bagging process. This stability effectively prevents bag detachment caused by excessive tightness between the material bag and the guide cylinder or interference from external factors, reducing packaging interruptions and material waste caused by bag detachment.

[0017] Through the above design, the operation time of the packaging machine in the bagging stage is significantly shortened, reducing unnecessary waiting and adjustment time, greatly increasing the working efficiency of the packaging machine, and providing strong support for improving the production efficiency of enterprises. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the left side of this utility model;

[0021] Figure 4 This is a schematic diagram showing the initial working state of this utility model;

[0022] Figure 5 This is a schematic diagram of the air blowing operation of this utility model;

[0023] Figure 6 Main view of the structure with a support plate at the bottom of the feed cylinder;

[0024] Figure 7 for Figure 6 Top view of the structure.

[0025] Figure label:

[0026] 1. Connecting flange; 2. Rear cylinder wall; 3. Side cylinder wall; 4. Front cylinder wall; 5. Connector; 6. Air blowing pipe; 7. Air pipe connector; 8. Air blowing pipeline; 10. Air outlet horizontal pipe; 11. Bottom air outlet; 12. Slot; 13. Spreading plate; 14. Side air outlet; 15. Air outlet pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] See appendix Figure 1-7 ;

[0029] A guide cylinder for a high-speed six-sided vacuum packaging machine with an air blowing device includes a cylinder with an inlet and an outlet. A connecting flange 1 is installed on the top of the cylinder and is fixed to the end of the lifting arm of the equipment through the connecting flange 1. The lifting arm of the equipment is provided with a bag opening device of the bag feeding mechanism on one side. An opening is provided on one side of the upper end of the cylinder, and an air blowing pipe 6 is installed at the opening and extends into the cylinder. The air inlet of the air blowing pipe 6 is connected to the air blowing pipeline 8 through an air pipe connector 7, and the air outlet of the air blowing pipe 6 is located at the outlet of the cylinder.

[0030] Furthermore, the connecting flange 1 is a plate with a square hole in the middle and several holes on both sides, welded to the upper end of the cylinder. The rear cylinder wall 2 is welded to the upper end of the square hole on the rear side of the connecting flange 1, flush with the connecting flange 1. The side cylinder walls 3 are mirror-welded to the upper ends of the square holes on the left and right sides of the connecting flange, flush with the connecting flange 1. The front cylinder wall 4 is welded to the upper end of the square hole on the rear side of the connecting flange, flush with the connecting flange 1. The connecting flange is the core connecting component, welded to the upper end of the guide cylinder, playing a key connection and positioning role. The welding method between the cylinder and the connecting flange is carefully designed: the rear cylinder wall is welded to the upper end of the square hole on the rear side of the connecting flange and is flush with it, ensuring sealing and providing support for the installation of subsequent components; the side cylinder walls are mirror-welded to the upper ends of the square holes on the left and right sides of the connecting flange and are flush with it, enhancing the connection strength, making the material evenly stressed from left to right, and improving the stability and accuracy of packaging; the welding method of the front cylinder wall is similar to that of the rear cylinder wall. The three together form a complete cylinder structure, which is closely connected with the guide cylinder to form a smooth material conveying channel. This design not only enhances the connection strength between the cylinder and the connecting flange, but also makes the force on both sides more uniform when the material enters the cylinder, avoiding material accumulation or displacement caused by uneven force, and further improving the stability and accuracy of the packaging process.

[0031] Furthermore, the air blowing pipe 6 is an inverted L-shaped pipe, with a connector 5 installed at the horizontal end of its upper part, and fixed to the opening through the connector 5. The inverted L-shaped pipe structure design features a standardized connector precisely installed at the horizontal end of its upper part. This connector achieves a reliable connection to the equipment opening through threaded locking or snap-fit ​​fixing. The working principle is as follows: when compressed gas is injected from the gas source end, the gas flows downward along the vertical pipe section, turns at the L-shaped bend, enters the horizontal pipe section, and finally is precisely delivered to the target opening position through the sealed channel formed at the connector, achieving directional gas supply while maintaining airtightness.

[0032] Furthermore, the bottom outlet of the cylinder features a tapered structure that gradually expands the bag opening. The two ends of the bottom outlet of the cylinder are symmetrically inclined inwards in a tapered shape, with an inclination angle of 15°-30°. The tapered head reduces insertion resistance, and the position and suction force of the vacuum suction cup are adjusted to ensure the bag remains stable during insertion. A preheating device can also be considered to slightly soften the aluminum foil bag, making it easier to insert.

[0033] Furthermore, the bottom end of the air blowing pipe 6 is provided with a horizontally positioned air outlet pipe 10, and the bottom end face of the air outlet pipe 10 is distributed with multiple spaced-apart bottom air outlet holes 11. Through the bottom air outlet holes, gas at a certain pressure can be precisely blown into the bag. This gas diffuses rapidly inside the bag, acting evenly on each inner wall of the material bag, causing the originally tightly sealed material bag to quickly inflate. After the material bag is inflated, its opening naturally widens, creating favorable conditions for the insertion of the guide cylinder.

[0034] During operation, the bag opening device in the bag feeding mechanism opens the material bag and places it at the lower end of the guide cylinder. At this time, the guide cylinder is inserted into the material bag from top to bottom. At the same time, the air blowing control valve is opened to blow air into the material bag through the air blowing pipe 6, expanding the four sides of the material bag until the lower end of the guide cylinder is inserted into the bottom of the material bag. When the guide cylinder reaches the bottom, the air blowing control valve is closed.

[0035] In summary, the guide cylinder described in this utility model, with its air blowing device, can inflate tightly sealed material bags in advance, allowing the guide cylinder to be quickly inserted into the bags, which greatly increases the working efficiency of the packaging machine.

[0036] The structure is further optimized by providing spaced-apart slots 12 on both sides of the cylinder outlet, each slot housing a rotatable expanding plate 13. Side air outlets 14 facing the expanding plates are located on the front and rear sides of the air outlet pipe 10. Through the structure of the expanding plates, the air exiting through the side air outlets expands the inserted side of the cylinder. Combined with the gas thrust from the bottom air outlet, the two layers of fabric in the bag can be quickly and easily separated. To avoid the direct thrust, the air supply can be intermittently controlled, ensuring that the outer wall of the cylinder contacts and interacts with the pre-set elastic buffer structure during insertion. As the cylinder continues to be inserted, the buffer structure experiences radial compression from the cylinder, resulting in elastic contraction deformation. During this contraction process, the elastic potential energy inside the buffer structure continuously accumulates, generating a restoring force opposite to the compression direction—the contraction buffer expansion force—based on mechanical principles such as Hooke's Law. This force acts continuously and evenly on the outer wall of the cylinder, providing reverse support for the cylinder's insertion action. While slowing down the insertion speed and preventing the cylinder from rigidly colliding with the surrounding structure, it can also effectively disperse stress, ensuring the stability and safety of the cylinder insertion process.

[0037] The upper end of the expansion piece 13 is mounted in the slot via a flip shaft 14, and an air outlet pipe 15 facing the expansion piece is installed at the side air outlet 14. The air outlet pipe is installed at the side air outlet, and the air outlet direction of the air outlet pipe is towards the expansion piece. This design helps to utilize airflow to exert a corresponding effect on the expansion piece, assisting it in achieving its function. The expansion piece 13 is an outwardly arched arc structure made of plastic. The expansion piece as a whole presents a significantly outwardly arched arc structure, specifically a smooth arc surface with a certain radius of curvature. The expansion piece is made of plastic, a material that is not only lightweight but also has good wear resistance and a certain degree of flexibility. The unique arc structure design of the expansion piece plays a crucial role in the opening operation. When the expansion piece contacts the bag body and gradually opens the bag, its arc surface only contacts the bag surface in a small local area, significantly reducing the actual contact area between the expansion piece and the bag body compared to a planar structure. With the reduced contact area, the friction between the two during the unfolding process is also reduced. This low-friction state ensures a smooth sliding effect between the unfolding piece and the bag body, making the unfolding operation easier and more efficient, and effectively avoiding problems such as bag damage or poor unfolding caused by excessive friction.

[0038] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0039] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A guide cylinder with an air blowing device for a high-speed six-sided vacuum packaging machine, characterized in that: The device includes a cylinder with an inlet and an outlet. A connecting flange (1) is installed on the top of the cylinder and is fixed to the end of the equipment lifting arm via the connecting flange (1). The equipment lifting arm is provided with a bag opening device of the bag supply mechanism on one side. An opening is provided on one side of the upper end of the cylinder, and an air blowing pipe (6) is installed at the opening and extends into the cylinder. The air inlet of the air blowing pipe (6) is connected to the air blowing pipeline (8) via an air pipe connector (7), and the air outlet of the air blowing pipe (6) is located at the outlet of the cylinder.

2. The guide cylinder of the high-speed six-sided vacuum packaging machine with air blowing device according to claim 1, characterized in that: The connecting flange (1) is a plate with a square hole in the middle and several holes on both sides, which is welded to the upper end of the cylinder. The rear cylinder wall (2) of the cylinder is welded to the upper end of the square hole on the rear side of the connecting flange (1) and is flush with the connecting flange (1). The side cylinder walls (3) of the cylinder are mirror-welded to the upper end of the inner side of the square hole on the left and right sides of the connecting flange and are flush with the connecting flange (1). The front cylinder wall (4) of the cylinder is welded to the upper end of the inner side of the square hole on the rear side of the connecting flange and is flush with the connecting flange (1).

3. The guide cylinder of the high-speed six-sided vacuum packaging machine with air blowing device according to claim 1, characterized in that: The air blowing pipe (6) is an inverted L-shaped pipe with a connector (5) installed at the horizontal end of its upper end, and is fixed to the opening through the connector (5).

4. The guide cylinder of the high-speed six-sided vacuum packaging machine with air blowing device according to claim 1, characterized in that: The bottom outlet of the cylinder has a tapered structure that gradually expands to open the bag opening.

5. The guide cylinder of the high-speed six-sided vacuum packaging machine with air blowing device according to claim 4, characterized in that: The bottom outlet of the cylinder is symmetrically inclined inward at both ends in a conical shape, with an inclination angle of 15°-30°.

6. The guide cylinder of the high-speed six-sided vacuum packaging machine with air blowing device according to claim 1, characterized in that: The bottom end of the air blowing pipe (6) is provided with a horizontally arranged air outlet pipe (10), and the bottom end face of the air outlet pipe (10) is provided with a plurality of spaced bottom air outlet holes (11).

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