Plastic uptake product sealing performance detection device

Abstract

The invention discloses a device for detecting the sealing performance of a blister product. The device comprises a water storage tank and a detection mechanism, the detection mechanism comprises a detection box, a sealing plate, an air inlet head, an air injection pump and an exhaust assembly; a row of detection boxes with upward openings are fixedly arranged at the upper end of the water storage tank, a sealing plate capable of covering the openings of the row of detection boxes is horizontally arranged above the water storage tank in a liftable mode, and each detection box is communicated and fixedly provided with a detection pipe partially capable of penetrating into the water storage tank from the top of the water storage tank and stretching into water. The sealing plate is vertically and fixedly provided with air inlet heads at equal intervals, the upper end of the sealing plate is fixedly provided with an air injection pump for conveying air into the sealing plate, and the interiors of the row of detection boxes are communicated with the exhaust assembly. The problems that a to-be-detected plastic uptake product needs to be put into water for detection, the plastic uptake product needs to be dried after detection is finished, the operation is tedious, and the working efficiency is reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection of blister products, and in particular to a device for detecting air tightness of blister products. Background Art

[0002] Blister packaging is a general term for plastic products produced by blister technology and packaged with corresponding equipment. Blister products are mainly made of high-quality PVC, PET, PP, PS, GAG, flocking and other plastic materials to produce high-grade and various specifications of electronic blister packaging, stationery blister packaging, toy blister packaging, hardware blister packaging, food blister packaging, daily chemical gifts and crafts blister packaging. Blister packaging is of high quality, low price, and can beautify your products and attract more customers.

[0003] After searching: the Chinese patent application number is "CN202022137964.4", which discloses a sealing detection device for blister products, including a base, a cylinder body, an air cylinder and an inflation table. The cylinder body is movably arranged above the base, and a bracket is fixedly arranged on the base. The inflation table is connected to the top of the bracket, and the inflation table includes a connecting plate, a sealing gasket and a fixing component. The fixing component is used to fix the blister products. The device has a simple structure. The air cylinder drives the inflation table to move up and down, and the blister products are inflated by the inflation hole. The air cylinder drives the blister products into the cylinder body, and the sealing of the blister products is judged by whether bubbles are generated on the water surface.

[0004] The inventor discovered the following problems in the prior art during the implementation of the present invention:

[0005] During the testing process, the blister products to be tested need to be placed in water for testing, which results in the blister products needing to be dried after the test, which is a cumbersome operation and reduces work efficiency.

[0006] Therefore, it is an urgent problem to be solved by the present invention to provide a blister product sealing detection device which can detect multiple products at the same time through a detection mechanism during use, and avoids direct contact of blister products with water during the detection process, thereby avoiding the need to dry the products with qualified sealing properties in the later stage, thereby improving the detection efficiency. Summary of the invention

[0007] In view of the above technical problems, the purpose of the present invention is to overcome the problem in the prior art that during the detection process, the blister product to be detected needs to be placed in water for detection, which results in the need to dry the blister product after the detection, which is cumbersome to operate and reduces work efficiency. Thus, a blister product sealing detection device is provided, which can detect multiple products at the same time through a detection mechanism during use, and during the detection process, avoids direct contact between the blister product and water, and avoids the need to dry the products with qualified sealing properties at a later time, thereby improving the detection efficiency.

[0008] In order to achieve the above-mentioned object, the present invention provides a device for detecting the sealing property of blister products, the device comprising: a water storage tank and a detection mechanism;

[0009] The detection mechanism comprises: a detection box, a sealing plate, an air inlet head, an air injection pump and an exhaust assembly;

[0010] A row of test boxes with openings facing upwards for storing blister products to be tested are evenly spaced and vertically fixed at the upper end of the water storage tank in which water is stored; a sealing plate which can cover the openings of the test boxes in a row so that the interiors of the test boxes are sealed is horizontally and liftably arranged above the water storage tank; a test tube which can partially penetrate into the interior of the water storage tank from the top and extend into the water is fixedly arranged on each of the test boxes, and a No. 1 switch valve is fixedly arranged on each of the test tubes; the interior of the sealing plate is a hollow structure, and air inlet heads which are connected to the interior of the test box and extend into the interior of the blister product from the opening are fixedly arranged on the sealing plate in each of the test boxes at equal intervals; a rubber sleeve which fits the inner wall of the opening of the blister product is fixedly arranged on each of the air inlet heads; an air injection pump for conveying gas to the interior of the test boxes is fixedly arranged on the upper end of the sealing plate; the interior of a row of test boxes is connected to the exhaust assembly.

[0011] Preferably, a rubber pad is fixedly provided on the bottom end of the sealing plate.

[0012] Preferably, two limit blocks with adjustable spacing are spaced apart and vertically fixed in each of the detection boxes to limit and clamp the blister products.

[0013] Preferably, each of the limiting blocks facing the blister product is evenly partially recessed inward to form a plurality of grooves.

[0014] Preferably, both sides of each detection box are horizontally and threadedly fixed with studs, and the ends of each stud inside the detection box are horizontally and rotatably arranged on the corresponding limit block, and each stud outside the detection box is coaxially fixed with a knob.

[0015] Preferably, a corrugated hose is sleeved on each of the studs located between the detection box and the blister product, and both ends of each of the corrugated hoses are horizontally fixed on the limit block and the inner wall of the detection box, respectively.

[0016] Preferably, the device further comprises a lifting mechanism for driving the sealing plate to lift in a vertical direction, wherein the lifting mechanism comprises: a support frame and a cylinder; wherein,

[0017] An inverted L-shaped support frame is vertically fixed on the upper end of the water storage tank located next to a row of the detection boxes, at least one cylinder is vertically fixed through the top of the support frame, and the free end of the piston rod of the cylinder is fixed on the sealing plate.

[0018] Preferably, the exhaust assembly comprises: an exhaust pipe and an exhaust pump; wherein,

[0019] An exhaust pipe is horizontally fixedly installed beside a row of the detection boxes, each of the detection boxes is connected to the exhaust pipe through a branch pipe, and a No. 2 switch valve is fixedly installed on each branch pipe. The air pump is horizontally fixed at the upper end of the water storage tank, and its input end is fixedly connected to the exhaust pipe.

[0020] According to the above technical solution, the beneficial effects of the blister product sealing detection device provided by the present invention when used are as follows:

[0021] (1) Place the blister products to be tested horizontally into a row of test boxes, and keep the openings of the blister products facing upwards and corresponding to a row of air inlet heads on the sealing plate. Then, drive the sealing plate down in the vertical direction until a row of air inlet heads extend into the corresponding blister products. When each air inlet head extends from the opening of the corresponding blister product into the interior, the rubber sleeve on the surface of the air inlet head fits with the opening of the blister product, so that the air inlet head can seal the opening of the blister product, so that the air tightness test of the blister product can be accurately carried out later, thereby preventing the error caused by the fact that the opening of the blister product is not well sealed.

[0022] (2) After the above preparations are completed, close the No. 1 switch valve on each detection tube, and exhaust the gas inside each detection box through the exhaust assembly. After the gas is exhausted, continue to inject gas into the sealing plate through the air injection pump, so that the gas entering the sealing plate can enter each blister product through multiple air inlet heads, and open the No. 1 switch valve on each detection tube, so that the interior of each detection box is connected with the interior of the water storage tank through the detection tube. The sealing of the blister product in the corresponding detection box is judged by observing whether bubbles are generated at the outlet or around each detection tube.

[0023] (3) When gas is generated at the outlet of the detection tube or around it, gas is generated in the detection box corresponding to the detection tube, and the gas in the detection box is discharged into the water storage tank through the detection tube to generate bubbles. Therefore, it can be explained that the sealing of the blister product in the detection box is poor, causing the gas transported by the air pump through the corresponding air inlet head box. The gas inside the blister product is discharged into the detection box through the cracks or holes on its surface and discharged into the water in the water storage tank through the detection tube, thereby generating bubbles.

[0024] In summary, the present invention can detect multiple products simultaneously through the detection mechanism, and during the detection process, it avoids direct contact between the blister products and water, and avoids the need to dry the products with qualified sealing properties later, thereby improving the detection efficiency.

[0025] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of a blister product sealing detection device provided in a preferred embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of a blister product sealing detection device provided in a preferred embodiment of the present invention;

[0029] Figure 3 yes Figure 2 A schematic diagram of the structure of the enlarged part A in the middle;

[0030] Figure 4 It is a structural schematic diagram of a detection box of a blister product sealing detection device provided in a preferred embodiment of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a limit block of a device for detecting sealing properties of blister products provided in a preferred embodiment of the present invention.

[0032] Description of Reference Numerals

[0033] 1. Water storage tank; 2. Test box; 3. Sealing plate; 4. Air inlet head; 5. Air injection pump; 6. Exhaust pipe; 7. Test tube; 8. Limit block; 9. Stud; 10. Corrugated hose; 11. No. 1 switch valve; 12. Support frame; 13. Cylinder; 14. Rubber sleeve; 15. Rubber pad; 16. No. 2 switch valve; 17. Air pump. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0035] like Figure 1-5 As shown, the present invention provides a device for detecting the sealing property of blister products, the device comprising: a water storage tank 1 and a detection mechanism;

[0036] The detection mechanism comprises: a detection box 2, a sealing plate 3, an air inlet head 4, an air injection pump 5 and an exhaust assembly;

[0037] A row of test boxes 2 with their openings facing upward and used to store the blister products to be tested are fixedly arranged at equal intervals and vertically on the upper end of the water storage tank 1 with water stored inside. A sealing plate 3 capable of covering the openings of the test boxes 2 in a row so that the inside of each of them is sealed is arranged horizontally and liftably above the water storage tank 1. A test tube 7 capable of penetrating from the top of the water storage tank 1 and extending into the water is fixedly arranged on each of the test boxes 2. A sealing plate 3 capable of covering the openings of the test boxes 2 in a row so that the inside of each of them is sealed is fixedly arranged on each of the test boxes 2. A sealing plate 3 capable of covering the openings of the test boxes 2 in a row is arranged horizontally and liftably above the water storage tank 1. A sealing plate 3 capable of covering the openings of the test boxes 2 in a row so that the inside of each of them is sealed is fixedly arranged on each of the test boxes 2. A sealing plate 3 capable of covering the openings of the test boxes 2 in a row ... No. switch valve 11, the interior of the sealing plate 3 is a hollow structure, and the sealing plate 3 located in each of the detection boxes 2 is vertically and evenly fixed with air inlet heads 4 that are connected to the interior and extend from the opening of the blister product into the interior and connected to the interior, each of the air inlet heads 4 is fixed with a rubber sleeve 14 that fits the inner wall of the opening of the blister product, and the upper end of the sealing plate 3 is fixed with an air injection pump 5 for conveying gas to the interior, and the interior of a row of the detection boxes 2 is connected to the exhaust assembly.

[0038] In the above scheme, when in use, the blister products to be tested are horizontally placed into a row of the test boxes 2, and the openings of the blister products are kept facing upward and corresponding one by one to a row of the air inlet heads 4 on the sealing plate 3. Subsequently, the sealing plate 3 is driven to descend in the vertical direction until a row of the air inlet heads 4 extends into the corresponding blister products. When each of the air inlet heads 4 extends from the opening of the corresponding blister product into the interior, the rubber sleeve 14 on the surface of the air inlet head 4 fits with the opening of the blister product, so that the air inlet head 4 can seal the opening of the blister product, so that the air tightness test of the blister product can be accurately carried out later, thereby preventing the above-mentioned errors caused by the fact that the opening of the blister product is not well sealed.

[0039] After the above preparations are completed, close the No. 1 switch valve 11 on each of the detection tubes 6, and exhaust the gas inside each of the detection boxes 2 through the exhaust assembly. After the gas is exhausted, continuously inject gas into the sealing plate 3 through the gas injection pump 5, so that the gas entering the sealing plate 3 passes through the multiple air inlet heads 4 and enters each blister product, and open the No. 1 switch valve 11 on each of the detection tubes 7, so that the interior of each of the detection boxes 2 is connected with the interior of the water storage tank 1 through the detection tubes 7, and the sealing of the corresponding blister product in the detection box 2 is judged by observing whether bubbles are generated at or around the outlet of each detection tube 7.

[0040] When gas is generated at the outlet of the detection tube 7 or around it, gas is generated in the detection box 2 corresponding to the detection tube 7, and the gas in the detection box 2 is discharged into the water storage tank 2 through the detection tube 7 to generate bubbles. Therefore, it can be explained that the sealing of the blister product in the detection box 2 is poor, causing the gas transported inside the blister product by the air injection pump 5 through the corresponding air inlet head 4 to be discharged into the detection box 2 through the cracks or holes generated on its surface and discharged into the water in the water storage tank 2 through the detection tube 7, thereby generating bubbles.

[0041] Therefore, multiple products can be tested simultaneously through the testing mechanism, and during the testing process, the blister products are prevented from directly contacting with water, thereby avoiding the need to dry the products with qualified sealing properties later, thereby improving the testing efficiency.

[0042] In addition, any side surface of the water tank 1 is made of glass material, so that the inspector can observe the internal overview of the water tank 1 through the side wall of the water tank 1 made of glass material.

[0043] In a preferred embodiment of the present invention, a rubber pad 15 is fixedly provided at the bottom end of the sealing plate 3 .

[0044] In the above scheme, the rubber pad 15 plays a sealing role, so that the sealing plate 3 can be sealed to cover the open openings of a row of the detection boxes 2, so as to ensure that the interior of each detection box 2 is in a sealed state, so as to provide a good detection basis for the later sealing detection of the blister product.

[0045] In a preferred embodiment of the present invention, two limit blocks 8 with adjustable spacing are spaced apart and vertically fixed in each of the detection boxes 2 to limit and clamp the blister products.

[0046] In the above scheme, the inner length of the detection box 2 is equal to the length of the blister product, and the width thereof is greater than the width of the blister product. The air inlet head 4 is in the shape of an inverted truncated cone.

[0047] When in use, place the blister product between the two limit blocks 8, and adjust the distance between the two limit blocks 8 so that the two limit blocks 8 are respectively against the blister product, so that the opening of the absorbing product is facing the corresponding air inlet head 4 on the sealing plate 3, so that in the process of driving the sealing plate 3 to descend in the vertical direction, it can be ensured that a row of the air inlet heads 4 on the sealing plate 3 can be accurately aligned with the opening of a row of blister products in a row of the detection box 2, so that the sealing plate 3 drives a row of the air inlet heads 4 to extend into the interior of each blister product respectively during the descent process and seal with its opening.

[0048] In a preferred embodiment of the present invention, each of the limiting blocks 8 facing the blister product is evenly partially recessed inward to form a plurality of grooves.

[0049] In the above scheme, the function of the several grooves on the limit block 8 is to reduce the contact area between the limit block 8 and the blister product, to prevent the two limit blocks 8 in each of the detection boxes 2 from reducing the contact area with the blister product during the process of limiting and clamping the blister product, and to avoid the limit blocks 8 from excessively contacting the blister product and affecting its detection results. In addition, since the length of the detection box 2 is the same as the length of the blister product, the spacing between the two limit blocks 8 can be adjusted so that the two limit blocks 8 can contact both sides of the blister product, and the cooperation with the detection box 2 can limit the blister product, and prevent the blister product from being offset during the process of injecting gas into it.

[0050] In a preferred embodiment of the present invention, studs 9 are horizontally and threadedly fixed on both sides of each of the detection boxes 2, and the ends of each of the studs 9 located inside the detection box 2 are horizontally and rotatably arranged on the corresponding limit blocks 8, and a knob is coaxially fixed on each of the studs 9 located outside the detection box 2.

[0051] In the above scheme, threaded holes matching the two studs 9 are respectively horizontally penetrated through the two side walls of each of the detection boxes 2, and the two threaded studs 9 are respectively horizontally threadedly fixed on the two threaded holes.

[0052] When in use, since the ends of the two threaded columns 9 are rotatably arranged on the two limit blocks 8 respectively, the two limit blocks 8 can be pushed toward the blister product during the rotation of the two threaded columns 9 until the two limit blocks 8 are in contact with the blister product.

[0053] In a preferred embodiment of the present invention, a corrugated hose 10 is sleeved on each of the studs 9 located between the detection box 2 and the blister product, and both ends of each of the corrugated hoses 10 are horizontally fixed on the limit block 8 and the inner wall of the detection box 2 respectively.

[0054] In the above scheme, the corrugated hose 10 is made of flexible material and can be retracted. When the threaded column 9 drives the limit block 8 to move, the corrugated hose 10 plays a sealing role to prevent the gas from overflowing from the threaded hole threadedly connected to the threaded column 9 during the process of injecting gas into the blister product, thereby affecting the authenticity and reliability of the test results.

[0055] In a preferred embodiment of the present invention, the device further comprises a lifting mechanism for driving the sealing plate 3 to lift in a vertical direction, wherein the lifting mechanism comprises: a support frame 12 and a cylinder 13; wherein,

[0056] An inverted L-shaped support frame 12 is vertically fixed on the upper end of the water storage tank 1 located next to a row of the detection boxes 2, and at least one cylinder 13 is vertically fixed through the top of the support frame 12, and the free end of the piston rod of the cylinder 13 is fixed on the sealing plate 3.

[0057] In the above solution, when in use, by starting the piston rod of the cylinder 13 to extend from or retract into its cylinder portion, the sealing plate 3 can be driven to move up and down linearly in a stable and reliable manner in the vertical direction.

[0058] In addition, the cylinder 13 is a well-known technical means, so its structure and use principle will not be repeated here.

[0059] In a preferred embodiment of the present invention, the exhaust assembly comprises: an exhaust pipe 6 and an air pump 17; wherein,

[0060] An exhaust pipe 6 is horizontally fixedly installed next to a row of the detection boxes 2, each of the detection boxes 2 is connected to the exhaust pipe 6 through a branch pipe, and a No. 2 switch valve 16 is fixedly installed on each branch pipe. The air pump 17 is horizontally fixed at the upper end of the water storage tank 1, and its input end is fixedly connected to the exhaust pipe 6.

[0061] In the above scheme, when in use, before delivering gas to the inside of the blister product, the second switch valve on each branch pipe needs to be opened 16, and the exhaust pump 17 is started to extract the gas inside a row of the detection boxes 2.

[0062] In summary, the device for detecting the sealing performance of blister products provided by the present invention overcomes the problem in the prior art that during the detection process, the blister products to be detected need to be placed in water for detection, resulting in the need to dry the blister products after the detection, which is cumbersome to operate and reduces work efficiency.

[0063] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0065] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A device for detecting the sealing performance of blister products, characterized in that: The device comprises: a water storage tank (1) and a detection mechanism; The detection mechanism comprises: a detection box (2), a sealing plate (3), an air intake head (4), an air injection pump (5) and an exhaust assembly; A row of test boxes (2) with an opening facing upward and used to store the blister products to be tested are fixedly arranged at equal intervals and vertically on the upper end of the water storage tank (1) storing water therein; a sealing plate (3) capable of covering the openings of the test boxes (2) in a row so that the interior of each of the test boxes is sealed is horizontally and liftably arranged above the water storage tank (1); a test tube (7) capable of penetrating from the top of the water storage tank (1) into the interior of the water storage tank (1) and extending into the water is fixedly arranged on each of the test boxes (2); and a No. The switch valve (11) is a hollow structure inside the sealing plate (3), and the sealing plate (3) located in each of the detection boxes (2) is vertically and evenly fixed with air inlet heads (4) which are connected to the interior thereof and extend from the opening of the blister product into the interior thereof and are connected to the interior thereof, each of the air inlet heads (4) is fixed with a rubber sleeve (14) which fits the inner wall of the opening of the blister product, and the upper end of the sealing plate (3) is fixed with an air injection pump (5) for conveying gas to the interior thereof, and the interior of a row of the detection boxes (2) is connected to the exhaust assembly.

2. The device for detecting the sealing performance of blister products according to claim 1, characterized in that: A rubber pad (15) is fixedly arranged at the bottom end of the sealing plate (3).

3. The device for detecting the sealing performance of blister products according to claim 1, characterized in that: Two limit blocks (8) with adjustable spacing are arranged in each of the detection boxes (2) at intervals and vertically fixed to limit and clamp the blister products.

4. The device for detecting the sealing performance of blister products according to claim 3, characterized in that: Each of the limiting blocks (8) facing the blister product is evenly partially recessed inwards to form a plurality of grooves.

5. The device for detecting the sealing performance of blister products according to claim 3, characterized in that: Both sides of each detection box (2) are horizontally and threadedly fixedly provided with studs (9), and the ends of each stud (9) located inside the detection box (2) are horizontally and rotatably arranged on the corresponding limit block (8), and each stud (9) located outside the detection box (2) is coaxially fixedly provided with a knob.

6. The device for detecting the sealing performance of blister products according to claim 5, characterized in that: A corrugated hose (10) is sleeved on each of the studs (9) located between the detection box (2) and the blister product, and both ends of each of the corrugated hoses (10) are horizontally fixed on the limit block (8) and the inner wall of the detection box (2), respectively.

7. The device for detecting the sealing performance of blister products according to claim 1, characterized in that: The device also includes a lifting mechanism for driving the sealing plate (3) to move up and down in a vertical direction, wherein the lifting mechanism includes: a support frame (12) and a cylinder (13); wherein: An inverted L-shaped support frame (12) is vertically fixedly disposed on the upper end of the water storage tank (1) located next to a row of the detection boxes (2), at least one cylinder (13) is vertically penetrated and fixedly disposed on the top of the support frame (12), and the free end of the piston rod of the cylinder (13) is fixed on the sealing plate (3).

8. The device for detecting the sealing performance of blister products according to claim 1, characterized in that: The exhaust assembly comprises: an exhaust pipe (6) and an exhaust pump (17); wherein: An exhaust pipe (6) is fixedly arranged horizontally beside a row of the detection boxes (2), each of the detection boxes (2) is connected to the exhaust pipe (6) through a branch pipe, and each branch pipe is fixedly provided with two The switch valve (16) is provided, and the air pump (17) is horizontally fixed on the upper end of the water storage tank (1). Its input end is fixedly connected to the exhaust pipe (6).

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