Inspection device used after packaging bag making

Abstract

The utility model relates to the technical field of packaging bag detection, in particular to an inspection device used after packaging bag manufacturing. According to the technical scheme, the device comprises a detection table and an inflation pump, an inflation pipe is fixed to the upper end of the detection table, the inflation pump is fixed to the bottom of the detection table, a connecting pipe is fixed between the inflation pump and the inflation pipe, a limiting sleeve is fixed to the position, located on the outer side of the inflation pipe, of the upper end of the detection table, and a sealing sleeve is arranged above the detection table; the inner diameter size of the sealing sleeve is matched with the outer diameter size of the limiting sleeve, an air cylinder for driving the sealing sleeve to ascend and descend is fixed to the upper end of the detection table and located on the outer side of the sealing sleeve, a pair of vertical plates is fixed to the upper end of the detection table and located on the outer side of the air cylinder, and extrusion plates are installed on the sides, close to each other, of the vertical plates. According to the utility model, not only can packaging bag leakage detection be carried out, but also internal air pressure limit damage detection of the packaging bag can be synchronously carried out, the purpose of multifunctional detection is realized, and the practicability of detection equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag detection, in particular to an inspection device used for packaging bags after bag making. Background Art

[0002] Packaging bag testing refers to a series of testing and evaluation activities on the quality, performance and safety of packaging bags. These testing activities usually include testing of the physical properties, chemical properties, sealing, pressure resistance, puncture resistance, tear resistance, high temperature resistance, transparency, barrier properties, etc. of the packaging bags to ensure that the packaging bags can meet specific usage requirements, ensure the safety of the products in the packaging and extend the shelf life of the products.

[0003] There are various testing items for packaging bags, among which the air tightness test of packaging bags is a common testing item. Common testing equipment can only perform a single air tightness test. After the inside of the packaging bag is sealed, it is filled with gas at a specified air pressure to observe the air pressure change. When performing the maximum destructive pressure test of the packaging bag, it is necessary to re-fix the packaging bag to the specified pressure equipment. When conducting the extrusion destruction experiment, the operation is quite troublesome. Among them, the air tightness test can prevent the products inside the package from being affected by the external environment, such as the invasion of air, moisture, dust, bacteria, etc., thereby protecting the quality and safety of the product and extending its shelf life. The maximum destructive pressure test can make the packaging bag encounter various pressure changes during transportation, storage and use, such as stacking, handling, climate change, etc. By detecting the maximum air pressure that the packaging bag can withstand, it can ensure that the packaging will not be damaged or leaked due to excessive pressure under normal use conditions. Therefore, it is necessary to design a packaging bag testing equipment with multiple simultaneous tests. Utility Model Content

[0004] The purpose of the utility model is to provide a device for inspecting packaging bags after they are made, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a testing platform and an air pump, an air inflation tube is fixed to the upper end of the testing platform, the air inflation tube is fixed to the bottom of the testing platform, and a connecting tube is fixed between the air inflation tube and the air pump, a limiting sleeve is fixed to the upper end of the testing platform and located outside the air inflation tube, a sealing sleeve is arranged above the testing platform, the inner diameter of the sealing sleeve is matched with the outer diameter of the limiting sleeve, a cylinder for driving the sealing sleeve to rise and fall is fixed to the upper end of the testing platform and located outside the sealing sleeve, a pair of vertical plates are fixed to the upper end of the testing platform and located outside the cylinder, an extrusion plate is installed on the close side of the vertical plates, and an air pressure sensor is fixed to the upper end of the testing platform and located inside the limiting sleeve.

[0006] Preferably, a one-way valve is installed in the inflation tube, a controller is provided at the upper end of the detection platform, and a support column is fixed at the bottom of the detection platform.

[0007] Preferably, an end plate is fixed to the output end of the cylinder, a connecting rod is fixed to the upper end of the sealing sleeve and at a position corresponding to the end plate, and the upper end of the connecting rod is fixed to the end plate.

[0008] Preferably, the inner wall of the bottom of the sealing sleeve is chamfered.

[0009] Preferably, a telescopic cylinder is fixed on the vertical plate and aligned with the center of the extrusion plate, and the output end of the telescopic cylinder is fixed on the vertical plate. Guide rods are fixed at the four corners of the back side of the vertical plate, and the guide rods pass through the vertical plate and are slidably connected to the vertical plate.

[0010] Preferably, a sealing gasket is fixed on the outer side wall of the limiting sleeve and on the top of the testing platform at a position aligned with the sealing sleeve.

[0011] Compared with the prior art, the utility model has the beneficial effects of not only being able to perform packaging bag leakage detection, but also being able to simultaneously perform internal air pressure limit damage detection of the packaging bag, thereby achieving the purpose of multifunctional detection and improving the practicality of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front cutaway structural schematic diagram of a device for inspecting packaging bags after bag making according to the utility model;

[0013] Figure 2 This is a schematic diagram of the bottom structure of a sealing sleeve of a testing device for packaging bags after bag making according to the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the back structure of an extrusion plate of an inspection device for packaging bags after bag making.

[0015] In the figure: 1. test table; 11. support column; 2. inflation tube; 21. inflation pump; 22. connecting pipe; 23. one-way valve; 3. limit sleeve; 4. air pressure sensor; 5. sealing gasket; 6. sealing sleeve; 61. cylinder; 62. end plate; 63. connecting rod; 64. chamfer; 7. vertical plate; 71. extrusion plate; 72. telescopic cylinder; 73. guide rod; 8. controller. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 The utility model provides a technical solution: it includes a testing platform 1 and an air pump 21, an air filling tube 2 is fixed on the upper end of the testing platform 1, the air pump 21 is fixed on the bottom of the testing platform 1, and a connecting tube 22 is fixed between the air filling tube 2, a limiting sleeve 3 is fixed on the upper end of the testing platform 1 and located outside the air filling tube 2, a sealing sleeve 6 is arranged above the testing platform 1, and the inner diameter size of the sealing sleeve 6 is matched with the outer diameter size of the limiting sleeve 3, a cylinder 61 for driving the sealing sleeve 6 to rise and fall is fixed on the upper end of the testing platform 1 and located outside the sealing sleeve 6, a pair of vertical plates 7 are fixed on the upper end of the testing platform 1 and located outside the cylinder 61, an extrusion plate 71 is installed on one side of the vertical plate 7, an air pressure sensor 4 is fixed on the upper end of the testing platform 1 and located inside the limiting sleeve 3, a one-way valve 23 is installed in the air filling tube 2, a controller 8 is arranged on the upper end of the testing platform 1, a supporting column 11 is fixed on the bottom of the testing platform 1, and a sealing pad 5 is fixed on the outer wall of the limiting sleeve 3 and the position aligned with the sealing sleeve 6 on the top of the testing platform 1.

[0018] An end plate 62 is fixed to the output end of the cylinder 61 , a connecting rod 63 is fixed to the upper end of the sealing sleeve 6 and at a position corresponding to the end plate 62 , the upper end of the connecting rod 63 is fixed to the end plate 62 , and a chamfer 64 is provided on the inner wall of the bottom of the sealing sleeve 6 .

[0019] A telescopic cylinder 72 is fixed on the vertical plate 7 and aligned with the center of the extrusion plate 71, and the output end of the telescopic cylinder 72 is fixed on the vertical plate 7. Guide rods 73 are fixed at the four corners of the back of the vertical plate 7. The guide rods 73 pass through the vertical plate 7 and are slidably connected to the vertical plate 7.

[0020] Working principle: First, connect the entire device to an external power supply, then turn the packaging bag upside down on the inflation tube 2, let its opening pass through the limit sleeve 3 and the sealing sleeve 6, and then use the downward pressure of the sealing sleeve 6 to achieve the sealing of the packaging bag opening. In this process, the expansion and contraction of the output end of the cylinder 61 can drive the end plate 62 to rise and fall, and then drive the sealing sleeve 6 to automatically rise and fall, and then use the inflation pump 21 to fill the packaging bag with air, and use the air pressure sensor 4 to detect the air pressure. When the detected air pressure is reached, observe whether the air pressure value in the packaging bag is stable, and then determine whether there is a leakage phenomenon, and finally achieve the purpose of air tightness detection. At this time, since a one-way valve 23 is provided in the inflation tube 2, gas reflux leakage can be avoided. Then, the extrusion plate 71 is driven by the telescopic cylinder 72 to move to the closer side until the inflated packaging bag is pressed. At this time, the air pressure in the packaging bag will continue to increase until the packaging bag breaks, and the instantaneous pressure inside the packaging bag is recorded, and then the maximum destructive pressure value of the packaging bag is obtained, so as to quickly achieve the purpose of multiple tests and increase the practicality of the detection equipment.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for inspecting packaging bags after bag making, comprising a testing table (1) and an air pump (21), characterized in that: An air tube (2) is fixed to the upper end of the test platform (1); the air pump (21) is fixed to the bottom of the test platform (1) and a connecting tube (22) is fixed between the air pump and the air tube (2); a limit sleeve (3) is fixed to the upper end of the test platform (1) and located outside the air tube (2); a sealing sleeve (6) is arranged above the test platform (1); the inner diameter of the sealing sleeve (6) matches the outer diameter of the limit sleeve (3); a cylinder (61) for driving the sealing sleeve (6) to rise and fall is fixed to the upper end of the test platform (1) and located outside the sealing sleeve (6); a pair of vertical plates (7) are fixed to the upper end of the test platform (1) and located outside the cylinder (61); a pressing plate (71) is installed on the adjacent side of the vertical plates (7); and a pressure sensor (4) is fixed to the upper end of the test platform (1) and located inside the limit sleeve (3).

2. The inspection device for packaging bags after making according to claim 1, characterized in that: A one-way valve (23) is installed in the inflation tube (2), a controller (8) is arranged at the upper end of the detection platform (1), and a support column (11) is fixed at the bottom of the detection platform (1).

3. The inspection device for packaging bags after making according to claim 1, characterized in that: An end plate (62) is fixed to the output end of the cylinder (61), a connecting rod (63) is fixed to the upper end of the sealing sleeve (6) and at a position corresponding to the end plate (62), and the upper end of the connecting rod (63) is fixed to the end plate (62).

4. The inspection device for packaging bags after making according to claim 3 is characterized in that: The inner wall of the bottom of the sealing sleeve (6) is provided with a chamfer (64).

5. The inspection device for packaging bags after making according to claim 1 is characterized in that: A telescopic cylinder (72) is fixed on the vertical plate (7) and aligned with the center of the extrusion plate (71), and an output end of the telescopic cylinder (72) is fixed on the vertical plate (7). Guide rods (73) are fixed at four corners of the back of the vertical plate (7), and the guide rods (73) pass through the vertical plate (7) and are slidably connected to the vertical plate (7).

6. The inspection device for packaging bags after making according to claim 1, characterized in that: A sealing gasket (5) is fixed on the outer wall of the limiting sleeve (3) and on the top of the testing platform (1) at a position aligned with the sealing sleeve (6).

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