Blowing device for paper-plastic packaging box

Abstract

The utility model relates to the technical field of paper-plastic packaging box production, and particularly discloses a paper-plastic packaging box blowing device which is characterized in that an air cylinder is fixedly mounted on a base, an upper air inlet nozzle and a lower air inlet nozzle of the air cylinder are provided with a three-position five-way reversing valve used for controlling the motion state of the air cylinder, an air inlet pipe is fixedly mounted on the three-position five-way reversing valve, and an air outlet pipe is fixedly mounted on the air inlet pipe. A first waste gas pipe is fixedly installed on the three-position five-way reversing valve, a composite upper die is installed on the base in a sliding mode, a composite lower die is fixedly installed on the base, a second waste gas pipe is fixedly installed at the side end of the composite lower die, and an exhaust hole is formed in the composite lower die. Waste gas in the upper cavity of the air cylinder can enter the composite lower die along the first waste gas pipe, the flow control valve and the second waste gas pipe and then is exhausted through the exhaust hole formed in the composite lower die, the exhausted waste gas can blow a product to be demolded, and the effect that the product can be easily taken out by an operator conveniently is achieved.

Description

Technical Field

[0001] This utility model relates to the field of paper-plastic packaging box production technology, and in particular to an air blowing device for paper-plastic packaging boxes. Background Technology

[0002] In the production process of paper-plastic packaging boxes, successfully demolding the formed boxes from the mold is a crucial step in ensuring production efficiency and product quality. In practical applications, air-blowing demolding devices for paper-plastic packaging boxes typically utilize the following technologies:

[0003] 1. Air blowing mechanism: mainly composed of air compressor, air pipe and air blowing hole. The air compressor is responsible for generating high pressure gas, which is transmitted to the air blowing hole at a specific position on the mold through the air pipe.

[0004] 2. Mold positioning and fixing mechanism: commonly used devices include positioning pins, clamping blocks, and robotic arms. Positioning pins are used to accurately determine the position of the mold on the worktable.

[0005] 3. Air blowing control mechanism: It generally includes a pressure sensor, a flow regulating valve and a programmable logic controller (PLC). The pressure sensor monitors the air blowing pressure in real time.

[0006] In the production of existing paper-plastic packaging boxes, the upper and lower molds are used to press and shape them. After the pressing is completed, the molds are separated. Due to the large pressing pressure, the gap between the product and the mold is small. Since the paper-plastic material is relatively fragile, it is not easy to remove the product from the mold. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides an air blowing device for paper-plastic packaging boxes. This device solves the technical problem that, during the production of existing paper-plastic packaging boxes, the upper and lower molds are used for compression molding. After the compression is completed and the molds are separated, the gap between the product and the mold is small due to the high compression pressure. Since paper and plastic materials are relatively fragile, it is difficult to remove the product from the mold.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A paper-plastic packaging box blowing device includes a base, a cylinder fixedly mounted on the base, a three-position five-way directional valve for controlling the movement state of the cylinder installed on the upper and lower air inlets of the cylinder, an air inlet pipe fixedly mounted on the three-position five-way directional valve, a first exhaust pipe fixedly mounted on the three-position five-way directional valve, a composite upper mold slidably mounted on the base, a composite lower mold fixedly mounted on the base, a second exhaust pipe fixedly mounted on the side end of the composite lower mold, and an exhaust hole opened on the composite lower mold.

[0010] Preferably, a flow control valve for adjusting the flow rate is installed between the first exhaust pipe and the second exhaust pipe.

[0011] Preferably, the upper air intake of the cylinder is connected to port A of the three-position five-way directional valve.

[0012] Preferably, the lower air intake of the cylinder is connected to port B of the three-position five-way directional valve.

[0013] Preferably, the intake pipe is connected to the P port of the three-position five-way reversing valve.

[0014] Preferably, the first exhaust pipe is connected to the R port of a three-position five-way reversing valve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First, the exhaust gas in the upper chamber of the cylinder will enter the lower composite mold through the first exhaust gas pipe, the flow control valve, and the second exhaust gas pipe, and then be discharged through the exhaust hole opened on the lower composite mold. The discharged exhaust gas will blow the product to demold, achieving the effect of easy removal by the operator.

[0017] Second, the equipment uses its own exhaust gas for demolding, eliminating the need for an additional air source on the composite lower mold, thus saving resources. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a structural diagram of the cylinder of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A.

[0021] Legend: 1. Cylinder; 2. Inlet pipe; 3. First exhaust pipe; 4. Flow control valve; 5. Second exhaust pipe; 6. Compound lower mold; 7. Compound upper mold; 8. Three-position five-way directional valve. Detailed Implementation

[0022] This application provides an air blowing device for paper-plastic packaging boxes, which effectively solves the technical problem that in the production of existing paper-plastic packaging boxes, when the upper and lower molds are pressed together, it is difficult to remove the product from the mold after the molds are separated due to the large pressing pressure and small gap between the product and the mold. Since the paper-plastic material is relatively fragile, the product is difficult to remove from the mold. The exhaust gas in the upper chamber of the cylinder will enter the lower composite mold through the first exhaust gas pipe, the flow control valve and the second exhaust gas pipe, and then be discharged through the exhaust hole opened on the lower composite mold. The discharged exhaust gas will blow the product to demold, which achieves the effect of easy removal by the operator. Demolding is performed by using the exhaust gas discharged by the equipment itself, without the need to arrange an additional air source on the lower composite mold, thus achieving the effect of saving resources.

[0023] Example

[0024] like Figure 1 , Figure 2 As shown, the technical solution in this application embodiment effectively solves the technical problem that in the production of existing paper-plastic packaging boxes, when the upper and lower molds are used for compression molding, it is difficult to remove the product from the mold after the molds are separated due to the large compression pressure and small gap between the product and the mold. Since paper and plastic materials are relatively fragile, this makes it difficult to remove the product from the mold. The overall approach is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a paper-plastic packaging box blowing device, including a base, a cylinder 1 fixedly installed on the base, a three-position five-way reversing valve 8 for controlling the movement state of the cylinder 1 installed on the upper and lower air inlets of the cylinder 1, an air inlet pipe 2 fixedly installed on the three-position five-way reversing valve 8, and a first exhaust pipe 3 fixedly installed on the three-position five-way reversing valve 8.

[0026] A composite upper mold 7 is slidably installed on the base, and a composite lower mold 6 is fixedly installed on the base. A second exhaust pipe 5 is fixedly installed on the side end of the composite lower mold 6. An exhaust hole is opened on the composite lower mold 6. A flow control valve 4 for adjusting the flow rate is installed between the first exhaust pipe 3 and the second exhaust pipe 5.

[0027] The upper air intake of cylinder 1 is connected to port A of three-position five-way reversing valve 8, the lower air intake of cylinder 1 is connected to port B of three-position five-way reversing valve 8, the intake pipe 2 is connected to port P of three-position five-way reversing valve 8, and the first exhaust pipe 3 is connected to port R of three-position five-way reversing valve 8.

[0028] Base: Serves as the supporting foundation for the entire paper-plastic packaging box blowing device, providing installation positions for other components, ensuring the stability of the relative positions of each component, and ensuring the overall structural stability of the device;

[0029] Cylinder 1: This is the power actuator of the device. By changing the intake and exhaust of air in the upper and lower chambers, it pushes the piston rod to move up and down in a linear motion. The movement of the piston rod drives the composite upper mold 7 to perform pressing and resetting actions, thereby forming the paper-plastic packaging box.

[0030] Intake pipe 2: Introduces compressed air supplied by an external air source (such as an air pump) into the three-position five-way reversing valve 8 to provide a power source for the movement of cylinder 1;

[0031] First exhaust pipe 3: When the three-position five-way reversing valve 8 is in the left position, it is used to transport the exhaust gas discharged from the upper chamber of cylinder 1 to the flow control valve 4, which is used to regulate the flow rate, and then participate in the subsequent demolding blowing process.

[0032] Flow control valve 4: Installed between the first exhaust pipe 3 and the second exhaust pipe 5, it can adjust the flow rate and pressure of the exhaust gas entering the lower mold composite mold 6 according to actual usage requirements, thereby controlling the blowing force during demolding and ensuring that the product can be demolded smoothly.

[0033] Second exhaust pipe 5: The exhaust gas, after its flow and pressure are regulated by flow control valve 4, is transported to the lower mold composite mold 6 to provide power for product demolding;

[0034] Composite lower mold 6: It works with composite upper mold 7 to complete the forming of paper-plastic packaging box. At the same time, a second exhaust pipe 5 is installed on its side and an exhaust hole is opened to receive exhaust gas from the second exhaust pipe 5 and discharge it through the exhaust hole. The exhaust gas is used to blow the product to achieve demolding.

[0035] Composite upper mold 7: It slides up and down under the push of the piston rod of cylinder 1. When it slides down, it cooperates with composite lower mold 6 to perform molding operation, so that the paper and plastic packaging box raw material is formed; when it slides up, it resets, making it easy to take out the formed product.

[0036] Three-position five-way reversing valve 8: controls the movement state of cylinder 1. By switching different working positions (center, left, right), it changes the connection of the air path, thereby determining whether the gas from the air source inlet pipe 2 flows to the upper or lower chamber of cylinder 1, and at the same time controls the exhaust path of the exhaust gas from the upper and lower chambers of cylinder 1.

[0037] Working principle:

[0038] Connect the air inlet pipe 2 to an air source such as an air pump. During use, when the three-position five-way directional valve 8 is in the neutral position, the air inlet pipe 2 cannot deliver gas into the cylinder 1. Place the raw material on the lower composite mold 6. When the three-position five-way directional valve 8 is in the right position, its P port will connect to the A port, and its B port will connect to the S port. At this time, the air inlet pipe 2 will deliver air into the upper chamber of the cylinder 1, pushing the piston rod downwards. The exhaust gas in the lower chamber of the cylinder 1 will be directly discharged to the outside. The piston rod will push the upper composite mold 7 downwards for pressing, forming the product. Then, the three-position five-way directional valve 8 switches to the left position. At this time, the P port of the three-position five-way directional valve 8 will connect to the three-position five-way directional valve 6. When port B of the five-way reversing valve 8 is connected, port A of the three-way five-way reversing valve 8 will be connected to port R of the three-way five-way reversing valve 8. At this time, the air inlet pipe 2 will send air into the lower chamber of the cylinder 1, pushing the piston rod to slide upward. The exhaust gas in the upper chamber of the cylinder 1 will be discharged to the first exhaust pipe 3. The piston rod will pull the composite upper mold 7 to slide upward and reset. During this process, the exhaust gas in the upper chamber of the cylinder 1 will enter the composite lower mold 6 along the first exhaust pipe 3, the flow control valve 4, and the second exhaust pipe 5, and then be discharged through the exhaust hole opened on the composite lower mold 6. The discharged exhaust gas will blow the product to demold, making it easy for the operator to take it out. The flow control valve 4 may adjust the air pressure of the composite lower mold 6 according to the usage requirements.

[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A paper-plastic packaging box air blowing device, comprising a base, characterized in that, A cylinder (1) is fixedly installed on the base. A three-position five-way reversing valve (8) for controlling the movement state of the cylinder (1) is installed on the upper and lower air inlets of the cylinder (1). An air inlet pipe (2) is fixedly installed on the three-position five-way reversing valve (8). A first exhaust pipe (3) is fixedly installed on the three-position five-way reversing valve (8). A composite upper mold (7) is slidably installed on the base. A composite lower mold (6) is fixedly installed on the base. A second exhaust pipe (5) is fixedly installed on the side end of the composite lower mold (6). An exhaust hole is opened on the composite lower mold (6).

2. The air blowing device for paper-plastic packaging boxes as described in claim 1, characterized in that, A flow control valve (4) for adjusting the flow rate is installed between the first exhaust pipe (3) and the second exhaust pipe (5).

3. The air blowing device for paper-plastic packaging boxes as described in claim 1, characterized in that, The upper air inlet of the cylinder (1) is connected to port A of the three-position five-way reversing valve (8).

4. The air blowing device for paper-plastic packaging boxes as described in claim 1, characterized in that, The lower air inlet of the cylinder (1) is connected to port B of the three-position five-way reversing valve (8).

5. The air blowing device for paper-plastic packaging boxes as described in claim 1, characterized in that, The intake pipe (2) is connected to the P port of the three-position five-way reversing valve (8).

6. The air blowing device for paper-plastic packaging boxes as described in claim 1, characterized in that, The first exhaust pipe (3) is connected to the R port of the three-position five-way reversing valve (8).

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