Punching negative pressure suction device of packaging production line

Abstract

The utility model discloses a punching negative pressure suction device of a packaging production line, when the packaging box is transported along with the packaging production line, the packaging box passes through the space between an upper clamping plate and a lower clamping plate, when an infrared probe of the packaging production line senses a special mark on the packaging box, the packaging box is driven to stop running, and the punching negative pressure suction device is started. A first air cylinder drives a lower clamping plate to move upwards, an annular cutting knife on the lower clamping plate cuts a round piece on a packaging box, then a second air cylinder drives a push plate to move upwards, a conical cylinder on the push plate pushes the round piece into a hole of a fixed base plate, and finally the round piece is cut through a negative-pressure cover body and a negative-pressure filtering barrel connected with external negative-pressure pumping equipment. And negative pressure suction is started, so that the circular sheets are sucked into the negative pressure filter barrel, and the production efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging production lines, and particularly relates to a punching negative pressure suction device for a packaging production line. Background Art

[0002] During the use of a packaging production line such as a urinary catheter production line, a punching process for the packaging bag is involved. The punching device first ensures that the circular packaging pieces punched out do not fall downward. Therefore, the aperture of the hole cannot be larger than the outer diameter of the circular piece. Each circular piece punched will be pushed into the hole by a cylindrical push block and stay therein. The circular pieces gradually fill the hole as they accumulate, and the bottom part falls from the bottom of the hole. However, it is found in actual production that as more and more circular pieces are cut, they always accumulate together and become harder and harder, and cannot be discharged at all. After a certain degree, it will instead affect production, and even the cylindrical push block will be stuck, and it will also cause defective products in the good packaging cutting. Eventually, the machine needs to be stopped for manual cleaning of the hole, which affects production efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a punching negative pressure suction device for a packaging production line, which has the function of ensuring production efficiency.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: A punching negative pressure suction device for a packaging production line includes a fixed substrate for being installed on a transmission base of the packaging production line, an upper clamping plate arranged below the fixed substrate, a lower clamping plate arranged below the upper clamping plate in a lifting manner, a plurality of annular cutting knives arranged on the lower clamping plate, a first air cylinder arranged between the lower clamping plate and the fixed substrate and driving the lower clamping plate to lift, a push plate arranged below the lower clamping plate in a lifting manner, a second air cylinder arranged between the push plate and the fixed substrate and driving the push plate to lift, a negative pressure cover body arranged on the upper surface of the fixed substrate, and a negative pressure filter barrel connected to the negative pressure cover body; a first round hole corresponding to the annular cutting knife and for the annular cutting knife to enter is arranged on the upper clamping plate, a second round hole located inside the annular cutting knife is arranged on the lower clamping plate, a hole corresponding to the first round hole is arranged on the fixed substrate, and a cylindrical push block that penetrates through the second round hole and the first round hole and pushes the circular piece into the hole is arranged on the push plate.

[0005] By adopting the above technical solution, when the packaging box is transported along the packaging production line, the packaging box passes between the upper clamping plate and the lower clamping plate. When the infrared probe of the packaging production line senses a special mark on the packaging box (which is an existing technology), it drives the packaging box to stop running. The first cylinder drives the lower clamping plate to move upward, and the circular cutting knife on the lower clamping plate cuts out a circular piece on the packaging box. Then, the second cylinder drives the push plate to move upward, and the conical cylinder on the push plate pushes the circular piece into the hole of the fixed substrate. Finally, through the negative pressure cover body and the negative pressure filter barrel connected to the external negative pressure pumping device, negative pressure suction is started, so that the circular piece is sucked into the negative pressure filter barrel, thus ensuring the production efficiency.

[0006] A further setting of the present utility model is that the inner diameter of the lower end of the hole is the same as the inner diameter of the first round hole, and the inner diameter of the hole gradually increases along the vertically upward direction.

[0007] By adopting the above technical solution, by changing the inner diameter of the hole, the inner diameter of the lower end of the hole is the same as the inner diameter of the first round hole, and the inner diameter of the hole gradually increases along the vertically upward direction. At this time, the circular piece will not be stuck during the upward pushing process.

[0008] A further setting of the present utility model is that the outer diameter of the cylindrical push block gradually decreases along the vertically upward direction.

[0009] By adopting the above technical solution, the outer diameter of the cylindrical push block gradually decreases along the vertically upward direction, so that the circular piece is not easily stuck between the first round hole and the cylindrical push block during the pushing process, ensuring the smoothness of the pushing.

[0010] A further setting of the present utility model is that two joints are arranged on the negative pressure cover body along its length direction, and negative pressure pipes are respectively connected between the inlet end of the negative pressure filter barrel and the two joints.

[0011] By adopting the above technical solution, by arranging two joints and two negative pressure pipes, the negative pressure suction effect along the length of the negative pressure cover body can be ensured, thus ensuring the adsorption effect on the circular piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a partial structural schematic diagram of the present utility model;

[0014] Figure 3 is a partial structural cross-sectional view of the present utility model.

[0015] Reference numerals: 1, fixed substrate; 11, hole; 2, upper clamping plate; 21, first round hole; 3, lower clamping plate; 31, second round hole; 4, annular cutting knife; 5, first cylinder; 6, push plate; 61, cylindrical push block; 7, second cylinder; 8, negative pressure cover body; 81, joint; 9, negative pressure filter barrel; 91, negative pressure pipe. Detailed implementation mode

[0016] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Embodiment: A punching negative pressure suction device for a packaging production line, as Figure 1 and Figure 2 shown, includes a fixed substrate 1 for mounting on the transmission base of the packaging production line, an upper clamping plate 2 arranged below the fixed substrate 1, a lower clamping plate 3 arranged below the upper clamping plate 2 in a lifting manner, a plurality of annular cutting knives 4 arranged on the lower clamping plate 3, a first cylinder 5 arranged between the lower clamping plate 3 and the fixed substrate 1 and driving the lower clamping plate 3 to lift, a push plate 6 arranged below the lower clamping plate 3 in a lifting manner, a second cylinder 7 arranged between the push plate 6 and the fixed substrate 1 and driving the push plate 6 to lift, a negative pressure cover body 8 arranged on the upper surface of the fixed substrate 1, and a negative pressure filter barrel 9 connected to the negative pressure cover body 8. A first round hole 21 corresponding to the annular cutting knife 4 and allowing the annular cutting knife 4 to enter is arranged on the upper clamping plate 2, a second round hole 31 located inside the annular cutting knife 4 is arranged on the lower clamping plate 3, a hole 11 corresponding to the first round hole 21 is arranged on the fixed substrate 1, and a cylindrical push block 61 that penetrates through the second round hole 31 and the first round hole 21 and pushes the circular sheet into the hole 11 is arranged on the push plate 6.

[0018] As Figure 2 and Figure 2 shown, the inner diameter of the lower end of the hole 11 is the same as the inner diameter of the first round hole 21, and the inner diameter of the hole 11 gradually increases along the vertically upward direction. The outer diameter of the cylindrical push block 61 gradually decreases along the vertically upward direction. At the same time, two joints 81 distributed along the length direction are arranged on the negative pressure cover body 8, and negative pressure pipes 91 are respectively connected between the inlet end of the negative pressure filter barrel 9 and the two joints 81.

[0019] Implementation effect: When the packaging box is transported along with the packaging production line, the packaging box passes between the upper clamping plate 2 and the lower clamping plate 3. When the infrared probe of the packaging production line senses a special mark on the packaging box (prior art), it drives the packaging box to stop running. The first cylinder 5 drives the lower clamping plate 3 to move upward, and the annular cutting knife 4 on the lower clamping plate 3 cuts out a circular sheet on the packaging box. Then, the second cylinder 7 drives the push plate 6 to move upward, and the conical cylinder on the push plate 6 pushes the circular sheet into the hole 11 of the fixed substrate 1. Finally, through the negative pressure cover body 8 and the negative pressure filter barrel 9 connected to an external negative pressure pumping device, negative pressure suction is started, so that the circular sheet is sucked into the negative pressure filter barrel 9, thereby ensuring production efficiency.

[0020] By changing the inner diameter of the hole 11, the inner diameter of the lower end of the hole 11 is made the same as the inner diameter of the first round hole 21, and the inner diameter of the hole 11 gradually increases along the vertically upward direction, so that the circular sheet will not be stuck during the upward pushing process. The outer diameter of the cylindrical push block 61 decreases along the vertically upward direction, so that when the circular sheet is pushed out, it is not easy to be stuck between the first round hole 21 and the cylindrical push block 61, ensuring the smoothness of the pushing. By providing two connectors 81 and two negative pressure tubes 91, the negative pressure suction effect along the length of the negative pressure cover body 8 can be ensured, thereby ensuring the adsorption effect on the circular sheet.

[0021] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications without creative contributions to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A punching negative pressure suction device for a packaging production line, characterized in that: The invention comprises a fixed base plate (1) for installation on a transmission base of a packaging production line, an upper clamping plate (2) arranged below the fixed base plate (1), a lower clamping plate (3) arranged below the upper clamping plate (2) for lifting, a plurality of annular cutting knives (4) arranged on the lower clamping plate (3), a first cylinder (5) arranged between the lower clamping plate (3) and the fixed base plate (1) and driving the lower clamping plate (3) to be lifted, a push plate (6) arranged below the lower clamping plate (3) for lifting, a second cylinder (7) arranged between the push plate (6) and the fixed base plate (1) and driving the push plate (6) to be lifted, a negative pressure cover body (8) arranged on the upper surface of the fixed base plate (1), and a negative pressure filter barrel (9) connected to the negative pressure cover body (8); The upper clamping plate (2) is provided with a first circular hole (21) corresponding to the annular cutting knife (4) and for the annular cutting knife (4) to enter; the lower clamping plate (3) is provided with a second circular hole (31) located inside the annular cutting knife (4); the fixed base plate (1) is provided with a hole (11) corresponding to the first circular hole (21); and the pushing plate (6) is provided with a columnar pushing block (61) which penetrates into the second circular hole (31) and the first circular hole (21) and pushes the circular sheet into the hole (11).

2. The punching negative pressure suction device for a packaging production line according to claim 1, characterized in that: The inner diameter of the lower end of the hole (11) is the same as the inner diameter of the first circular hole (21), and the inner diameter of the hole (11) gradually increases in the vertically upward direction.

3. The punching negative pressure suction device for a packaging production line according to claim 2, characterized in that: The outer diameter of the cylindrical push block (61) decreases in the vertically upward direction.

4. The punching negative pressure suction device for a packaging production line according to claim 1, characterized in that: The negative pressure cover body (8) is provided with two joints (81) distributed along its length direction, and negative pressure pipes (91) are respectively connected between the inlet end of the negative pressure filter barrel (9) and the two joints (81).

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