Feeding device for air tightness detection of packaging tin

Abstract

The invention relates to the technical field of packaging tin production, in particular to a feeding device for packaging tin air tightness detection, which comprises a first conveying frame, a second conveying frame, an appearance detection mechanism, a tin body fixing frame and an air tightness detection pool, a first conveying belt is arranged on the first conveying frame, and a second conveying belt is arranged on the second conveying frame. A first electromagnet and a second electromagnet are arranged in the first conveying frame and the second conveying frame correspondingly, through the arrangement of the can body fixing frame, the sealing performance of a plurality of packaging cans can be automatically detected at a time, and through the arrangement of the limiting frame, the first electromagnet, an arc-shaped boss and the second electromagnet, the sealing performance of the packaging cans can be detected at a time. According to the packaging tin appearance detection mechanism, the rejection rate of packaging tin during production and conveying is remarkably reduced, the production quality is improved, the production quality can be improved through the arrangement of the limiting frame and the arrangement frame, the appearance of the packaging tin can be automatically detected before feeding when the appearance detection mechanism is used, and the purpose of improving the final product quality is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging can production, in particular to a feeding device for packaging can airtightness detection. BACKGROUND

[0002] The production of sealant packaging cans (also commonly known as "glue cans", "plastic cans" or "composite cans") is a precise process combining material science, mechanical engineering and printing technology. The core requirements are: airtightness, corrosion resistance, mechanical strength and aesthetics. It mainly includes tin cans and plastic cans. Existing polyurethane foam sealant packaging cans generally use tin cans for packaging. The airtightness of the tin cans needs to be detected during production.

[0003] The sealant packaging cans are generally produced automatically on a production line during production. The airtightness of the packaging cans is generally detected by immersing the packaging cans in water, inflating the inside of the packaging cans, and observing whether bubbles are generated on the outside of the can body, thereby completing the detection. However, the airtightness detection of the can body is generally transported to the inside of the stock bin by a conveyor belt during feeding, and then manually installed one by one on the air nozzle, resulting in low airtightness detection efficiency.

[0004] In addition, the packaging cans need to be automatically transported over a long distance, and are generally transported vertically. In order to reduce the equipment footprint, an external baffle needs to be added for vertical placement transportation. However, the baffle is prone to extrusion and friction with the outer wall of the packaging cans during transportation, causing the color on the outer wall of the packaging cans to fall off, affecting the final quality of the packaging cans and increasing the scrap rate.

[0005] In addition, the airtightness of the packaging cans is generally the last process. However, extrusion and friction between the cans or between the cans and the equipment during transportation on the conveying frame can cause slight deformation of the packaging cans. This deformation is not easily detected by manual detection, resulting in low final production quality and reducing the pass rate of the packaging cans. SUMMARY

[0006] To overcome the deficiencies of the prior art, the present application provides a feeding device for packaging can airtightness detection, which has the advantages of convenient feeding during airtightness detection, reducing manual labor and improving subsequent detection efficiency, reducing color falling off caused by friction, reducing deformation, improving the pass rate, automatically detecting the deformation of the can body, improving production quality, and solving the problems raised in the background art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a feeding device for airtightness detection of a packaging can, comprising a first conveying frame, a second conveying frame, an appearance detection mechanism, a can body fixing frame and an airtightness detection pool, a first conveying belt is arranged on the first conveying frame, a second conveying belt is arranged on the second conveying frame, a first electromagnet and a second electromagnet are respectively arranged on the inside of the first conveying frame and the second conveying frame, the end of the second conveying frame is arranged below the tail of the first conveying frame, and the first conveying frame and the second conveying frame are vertically arranged; The appearance detection mechanism is arranged on one side of the second conveying frame, and the appearance detection mechanism comprises a blanking plate, a detection table, a rotating roller, an air guide pipe and a blanking plate, the end of the blanking plate is abutted on one side of the second conveying belt, the rotating roller is arranged in the inside of the detection table, and the air guide pipe is arranged directly above the detection table. The can body fixing frame is arranged on one side of the appearance detection mechanism, and the can body fixing frame is arranged on the airtightness detection pool.

[0008] Preferably, two groups of limiting frames are symmetrically arranged on the top of the first conveying frame, side rollers are linearly arranged on the top of the limiting frames, the distance between the side rollers on the two groups of limiting frames is consistent with the diameter of the packaging can, the first electromagnet is composed of two parts, the first part is arranged at the middle position of the inside of the first conveying frame, and the second part is arranged at the tail side of the first conveying belt.

[0009] Preferably, an arc-shaped boss is arranged on the surface of the second conveying belt, an receiving groove is arranged at the end of the second conveying frame, the receiving groove comprises an inclined support, an arc-shaped baffle and an inclined baffle, the arc-shaped baffle is arranged at the bottom of one of the inclined supports, the inclined baffle is arranged on one side of the inclined support, and the width of the second conveying belt is longer than the length of the packaging can.

[0010] Preferably, an arrangement frame is arranged on the top of the second conveying frame, the arrangement frame comprises a pressing plate, an adjusting bolt and a fixing plate, the fixing plate is arranged on the top of the second conveying frame, the adjusting bolt is threadedly connected with the fixing plate, the bottom of the adjusting bolt is rotationally connected with the pressing plate, and the pressing plate is located at the middle position of the second conveying frame.

[0011] Preferably, the blanking plate is arranged to be inclined, the bottom of the blanking plate is arranged on one side of the detection table, an inclined cylindrical arc groove is formed in the surface of the detection table, a groove is formed in the bottom center of the cylindrical arc groove, the rotating roller is arranged at the middle position of the groove, a transmission motor is transmissionally connected with the end of the rotating roller through a shaft coupling, a ejection cylinder is arranged in the inside of the groove, the ejection cylinder is arranged on one side of the rotating roller, an installation plate is fixedly connected with the end of the detection table, a fixing frame is arranged on the front surface of the installation plate, the air guide pipe is arranged on the fixing frame, and the air guide pipe is arranged to be inclined, and the inclination angle of the air guide pipe is consistent with the inclination angle of the cylindrical arc groove.

[0012] Preferably, the back of the mounting plate is provided with a micro air pump, the air guide pipe is provided with a bottom air outlet in a linear array, the tail of the air guide pipe is provided with a pressure relief hole, a plurality of rotating thimbles are rotatably connected to the outer surface of the air guide pipe and correspond to the bottom air outlets one by one, the rotating thimbles are provided with sealing baffles, the sealing baffles abut against the bottom air outlets, and the air guide pipe is provided with an air pressure sensor.

[0013] Preferably, the rear side of the detection table is provided with a pushing mechanism, the pushing mechanism comprises a fixed box, a sliding top block, an internal electromagnet, a spring sleeve and an adsorption armature, the fixed box is installed on one side of the detection table, the sliding top block is slidably arranged at the top of the fixed box, the internal electromagnet is installed in the fixed box, the spring sleeve is arranged on one side of the internal electromagnet, the end of the spring sleeve is fixedly connected with the adsorption armature, the top of the adsorption armature is fixedly connected with the bottom of the sliding top block, the front side of the detection table is provided with a collection box, the bottom of the collection box is inclined, and a box door is slidably arranged on one side of the collection box.

[0014] Preferably, the blanking plate is installed on one side of the detection table, the tank fixing frame is arranged on one side of the blanking plate, the top of the air tightness detection tank is provided with a top support, and the hydraulic rod is arranged on the top support and connected with the top of the tank fixing frame.

[0015] Preferably, the inside of the tank fixing frame is provided with a plurality of inclined bottom frames, the inclined bottom frame comprises an arc-shaped plate and a connecting rod, the back of the top support is provided with an external air pump, a plurality of air inlet pipes are arranged on the inner wall of the inclined bottom frame and correspond to the inclined bottom frames one by one, the air inlet pipes are connected with the external air pump, a limiting clamp is rotatably arranged on the inner wall of the tank fixing frame, the limiting clamp is provided with an arc-shaped clamping plate corresponding to the inclined bottom frame, an elastic clamping block is arranged on the outer wall of the limiting clamp, a clamping groove is arranged on the inner wall of the air tightness detection tank and corresponds to the elastic clamping block, and a spring button is slidably arranged in the clamping groove. Beneficial effects

[0016] Compared with the prior art, the present application provides a feeding device for air tightness detection of packaging cans, which has the following beneficial effects: 1. The feeding device for air tightness detection of packaging cans can automatically detect the sealing property of multiple packaging cans at one time by arranging the tank fixing frame, so that the detection efficiency of the feeding device is improved.

[0017] 2、The feeding device for the airtightness detection of packaging cans, through the setting of the limiting frame, the first electromagnet, the arc-shaped boss and the second electromagnet, extrusion and friction between the packaging cans and between the packaging cans and the feeding device can be prevented, the falling of the surface color of the packaging cans and the probability of deformation of the packaging cans can be effectively reduced, the waste rate of the packaging cans during production and conveying is significantly reduced, the production quality is improved, and through the setting of the limiting frame and the arrangement frame, the packaging cans with large deformation can be screened out to a certain extent during arrangement, and the production quality is improved.

[0018] 3、The feeding device for the airtightness detection of packaging cans, through the setting of the appearance detection mechanism, during use, the appearance of the packaging cans can be automatically detected before feeding, the detection efficiency and quality are improved, and the detection results can be automatically classified, and the quality of the final product is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the three-dimensional structure of the application; Figure 3 It is a schematic diagram of the side view structure of the first conveying frame of the application; Figure 4 It is a schematic diagram of the internal structure of the first conveying frame of the application; Figure 5 It is a schematic diagram of the three-dimensional structure of the second conveying frame of the application; Figure 6 It is a schematic diagram of the internal structure of the second conveying frame of the application; Figure 7 It is a schematic diagram of the three-dimensional structure of the appearance detection mechanism of the application; Figure 8 It is a schematic diagram of the internal structure of the appearance detection mechanism of the application; Figure 9 It is a schematic diagram of the connection structure of the gas guide pipe and the rotating needle of the application; Figure 10 It is a schematic diagram of the overall structure of the appearance detection mechanism of the application.

[0020] In the figure: 1, the first conveying frame; 2, the second conveying frame; 3, the first conveying belt; 4, the first electromagnet; 5, the limiting frame; 6, the side roller; 7, the second conveying belt; 8, the arc-shaped boss; 9, the second electromagnet; 10, the receiving groove; 1001, the inclined support; 1002, the arc-shaped baffle; 1003, the inclined baffle; 11, the arrangement frame; 1101, the pressing plate; 1102, the adjusting bolt; 1103, the fixed plate; 1104, the side arrangement plate; 12, the blanking plate; 13, the detection table; 14, the rotating roller; 15, the mounting plate; 16, the transmission motor; 17, the fixed frame; 18, the air guide pipe; 1801, the bottom air outlet; 1802, the pressure relief hole; 1803, the rotating top pin; 1804, the sealing baffle; 19, the air pressure sensor; 20, the micro air pump; 21, the sliding top block; 22, the internal electromagnet; 23, the spring sleeve; 24, the adsorption armature; 25, the collection box; 26, the box door; 27, the ejection air cylinder; 28, the blanking plate; 29, the air tightness detection pool; 30, the tank fixing frame; 31, the inclined base frame; 32, the air inlet pipe; 33, the limiting clamping frame; 34, the elastic clamping block; 35, the spring button; 36, the hydraulic rod; 37, the top support; 38, the external air pump; 39, the fixed box. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Embodiment 1 An embodiment of the present application, please refer to Figures 1 to 2 The feeding device for the air tightness detection of the packaging can includes a first conveying frame 1, a second conveying frame 2, an appearance detection mechanism, a tank fixing frame 30 and an air tightness detection pool 29. The first conveying frame 1 is provided with a first conveying belt 3, and the second conveying frame 2 is provided with a second conveying belt 7. The first conveying frame 1 and the second conveying frame 2 are respectively provided with a first electromagnet 4 and a second electromagnet 9 inside. The end of the second conveying frame 2 is arranged below the tail of the first conveying frame 1, and the first conveying frame 1 and the second conveying frame 2 are vertically arranged. The appearance detection mechanism is arranged on one side of the second conveying frame 2. The appearance detection mechanism is composed of a blanking plate 12, a detection table 13, a rotating roller 14, an air guide pipe 18 and a blanking plate 28. The end of the blanking plate 12 abuts against one side of the second conveying belt 7. The rotating roller 14 is arranged inside the detection table 13. The air guide pipe 18 is arranged directly above the detection table 13. The can body fixing frame 30 is arranged on one side of the appearance detection mechanism, and the can body fixing frame 30 is arranged on the air tightness detection pool 29.

[0023] The top of the first conveying frame 1 is provided with two groups of limiting frames 5 symmetrically arranged, the top of each limiting frame 5 is provided with a plurality of side rollers 6 arranged in a linear array, the distance between the side rollers 6 on the two groups of limiting frames 5 is consistent with the diameter of the packaging can, and the first electromagnet 4 is composed of two parts, the first part is arranged at the middle part inside the first conveying frame 1, and the second part is arranged at the tail side of the first conveying belt 3.

[0024] Specifically, the packaging can needs to be conveyed by the conveying frame during production to realize the assembly line production, and when the conventional conveying frame conveys the packaging cans, the cans are prone to collide with each other and shake and roll, thereby causing abrasion and deformation of the cans. Therefore, the first electromagnet 4 and the second electromagnet 9 are arranged inside the first conveying frame 1 and the second conveying frame 2, the packaging cans are made of tinplate cans, the first electromagnet 4 and the second electromagnet 9 can be used to adsorb the cans on the first conveying belt 3 and the second conveying belt 7 of the first conveying frame 1 and the second conveying frame 2, the packaging cans are limited to a certain extent, and the collision between the packaging cans can be prevented. In addition, the packaging cans are generally transported from the front end of the first conveying frame 1 when conveyed on the first conveying frame 1, the packaging cans are vertically placed when transported on the first conveying frame 1, and the limiting frame 5 is arranged to limit the packaging cans, and the side rollers 6 arranged in a linear array on the limiting frame 5 can prevent the color on the surface of the packaging cans from falling off when the packaging cans slide in contact with the limiting frame 5. In addition, the first conveying belt 3 does not need to be wide when the packaging cans are vertically placed, so that the volume of the first conveying frame 1 can be reduced, the occupied area is small, and the first conveying frame 1 is convenient to arrange, the packaging cans are rotated by 90 degrees along with the first conveying belt 3 after passing through the tail of the first conveying frame 1, so that the packaging cans enter the second conveying frame 2, the packaging cans are conveyed to the appearance detection mechanism through the second conveying belt 7, the appearance of the packaging cans is detected, the packaging cans are finally conveyed to the can body fixing frame 30 after the detection is completed, the air tightness detection can be performed, and the feeding preparation before the air tightness detection of the packaging cans is completed.

[0025] In use, the first electromagnet 4 and the second electromagnet 9 can be used to adsorb the packaging cans during conveying, so that the collision between the cans can be prevented, and in addition, the abrasion of the packaging cans during conveying can be reduced due to the arrangement of the side rollers 6.

[0026] Example 2 As an embodiment of the present application, please refer to 1, Figure 5 and Figure 6The application further comprises that the surface of the second conveying belt 7 is provided with arc-shaped protrusions 8, and the end of the second conveying frame 2 is provided with a receiving groove 10, which is composed of an inclined support 1001, an arc-shaped baffle 1002 and an inclined baffle 1003, the arc-shaped baffle 1002 is arranged at the bottom of one of the inclined supports 1001, and the inclined baffle 1003 is arranged at one side of the inclined support 1001, and the width of the second conveying belt 7 is slightly longer than the length of the packaging can; The top of the second conveying frame 2 is provided with a sorting frame 11, which is composed of a pressing plate 1101, an adjusting bolt 1102 and a fixed plate 1103, the fixed plate 1103 is arranged on the top of the second conveying frame 2, the adjusting bolt 1102 is threadedly connected with the fixed plate 1103, the bottom of the adjusting bolt 1102 is rotationally connected with the pressing plate 1101, and the pressing plate 1101 is located at the middle position of the second conveying frame 2; Two groups of symmetrical side sorting plates 1104 are arranged on the inner wall of the second conveying frame 2, the side sorting plates 1104 are arranged in an inclined manner, and the distance between the two groups of side sorting plates 1104 at the narrowest position is consistent with the length of the packaging can.

[0027] Specifically, after the packaging cans pass through the first conveying frame 1, the packaging cans are rotated by 90 degrees at the tail of the first conveying frame 1, are adsorbed on the first conveying belt 3 and enter the receiving groove 10 of the second conveying frame 2 at the same time, the distance between the end of the packaging cans on the first conveying belt 3 and the first electromagnet 4 is far, so that the magnetic adsorption force is reduced, the packaging cans fall between the inclined supports 1001, then the packaging cans slide along the arc-shaped baffle 1002 and enter the second conveying belt 7, and each packaging can is located between the two arc-shaped protrusions 8 of the second conveying belt 7, and the packaging cans are adsorbed on the second conveying belt 7 by the second electromagnet 9, so that the movement of the packaging cans during conveying on the second conveying belt 7 is prevented, and collision and extrusion are caused; When the packaging cans are conveyed on the second conveying frame 2, the side sorting plates 1104 are used to arrange the packaging cans to the same position, so that the subsequent automatic feeding is facilitated, and the feeding accuracy is improved, and in addition, the setting of the pressing plate 1101 can prevent the packaging cans from jumping when being arranged by the side sorting plates 1104, so that the packaging cans are kept stable during conveying on the second conveying frame 2.

[0028] Embodiment 3 As an embodiment of the application, please refer to Figures 7 to 10The application further comprises that the blanking plate 12 is obliquely arranged, and the bottom of the blanking plate 12 is installed on one side of the detection table 13, an oblique cylindrical arc groove is formed on the surface of the detection table 13, a groove is formed at the bottom center of the cylindrical arc groove, the rotating roller 14 is arranged at the middle of the groove, the end of the rotating roller 14 is drivingly connected with the transmission motor 16 through the shaft coupling, the ejection cylinder 27 is arranged inside the groove, the ejection cylinder 27 is arranged on one side of the rotating roller 14, the end of the detection table 13 is fixedly connected with the mounting plate 15, the front surface of the mounting plate 15 is installed with the fixed frame 17, the air guide pipe 18 is installed on the fixed frame 17, the air guide pipe 18 is obliquely arranged, and the inclination angle is consistent with the inclination angle of the cylindrical arc groove; The back surface of the mounting plate 15 is provided with the micro air pump 20, the bottom exhaust port 1801 in linear array is formed on the air guide pipe 18, the pressure relief hole 1802 is formed at the tail of the air guide pipe 18, the outer surface of the air guide pipe 18 is rotatably connected with the plurality of rotating thimbles 1803, and is arranged one by one with the bottom exhaust port 1801, the rotating thimbles 1803 are provided with the sealing baffle 1804, the sealing baffle 1804 abuts against the bottom exhaust port 1801, and the air pressure sensor 19 is installed on the air guide pipe 18; The rear side of the detection table 13 is provided with the pushing mechanism, the pushing mechanism is composed of the fixed box 39, the sliding top block 21, the internal electromagnet 22, the spring sleeve 23 and the adsorption armature 24, the fixed box 39 is installed on one side of the detection table 13, the sliding top block 21 is slidingly arranged with the top of the fixed box 39, the internal electromagnet 22 is installed in the fixed box 39, the spring sleeve 23 is arranged on one side of the internal electromagnet 22, the end of the spring sleeve 23 is fixedly connected with the adsorption armature 24, the top of the adsorption armature 24 is fixedly connected with the bottom of the sliding top block 21, the front side of the detection table 13 is installed with the collection box 25, the bottom of the collection box 25 is obliquely arranged, and the box door 26 is slidingly arranged on one side of the collection box 25.

[0029] Specifically, the packaging cans arranged by the second conveying frame 2 are pushed or limited by the first conveying frame 1 and the second conveying frame 2, so that the outer surface of the can body is easily extruded to produce slight deformation, resulting in certain defects and affecting the quality. The airtightness detection of the general packaging cans is generally the last process of the production of the packaging cans, in order to ensure the production quality, so the appearance of the packaging cans needs to be detected, so the packaging cans after the second conveying frame 2 will first fall on the detection table 13 through the blanking plate 12, and the can mouth of the packaging cans faces one side of the mounting plate 15, the transmission motor 16 starts to rotate the roller 14 for a long time, and when the packaging cans are fed to the detection table 13, the outer surface of the can body will abut against a row of rotating pins 1803, under the rotation of the rotating roller 14, the packaging cans will also rotate, through the setting of the bottom exhaust port 1801, the pressure relief hole 1802, the sealing baffle 1804 and the air pressure sensor 19 on the air guide pipe 18, when the outer surface of the packaging cans is smooth and has no deformation, the sealing baffle 1804 on the rotating pin 1803 always abuts against the bottom exhaust port 1801 of the air guide pipe 18, the micro air pump 20 supplies air to the air guide pipe 18, so that the internal pressure of the air guide pipe 18 is in a specified stable state, and the air pressure sensor 19 will not be triggered, the sliding top block 21 is set to be started once every time, and the time is consistent with the time of one rotation of the packaging cans on the detection table 13 and the time of the blanking of one packaging can on the second conveying frame 2, so as to maintain continuity. When the surface of the packaging cans is deformed, the rotating pin 1803 will rotate when rotating on the detection table 13, so that the sealing baffle 1804 is dislocated from the bottom exhaust port 1801, so that the air pressure in the air guide pipe 18 is reduced, and the air pressure sensor 19 is triggered, so that the internal electromagnet 22 in the fixed box 39 is powered, driving the adsorption armature 24 to move quickly, so that the sliding top block 21 moves quickly, and the packaging cans on the detection table 13 are hit into the inside of the collection box 25, so as to automatically pick out the deformed packaging cans and improve the qualified rate of the products.

[0030] Embodiment 4 As an embodiment of the present application, please refer to Figure 1 and Figure 2The application further comprises, on the basis of the embodiment 3, that the discharging plate 28 is installed on one side of the detection table 13, the jar fixing frame 30 is arranged on one side of the discharging plate 28, the top of the air tightness detection pool 29 is provided with the top support 37, the hydraulic rod 36 is installed on the top support 37, the telescopic end of the hydraulic rod 36 is connected with the top of the jar fixing frame 30, the inside of the jar fixing frame 30 is provided with a plurality of inclined bottom frames 31, the inclined bottom frame 31 is composed of an arc-shaped plate and a connecting rod, the back of the top support 37 is provided with the external air pump 38, a plurality of air inlet pipes 32 are installed on the inner wall of the inclined bottom frame 31, the air inlet pipe 32 corresponds to the inclined bottom frame 31 one by one, the air inlet pipe 32 is connected with the external air pump 38, the limit clamping frame 33 is rotatably installed on the inner wall of the jar fixing frame 30, the arc-shaped clamping plate corresponding to the inclined bottom frame 31 is arranged on the limit clamping frame 33, the elastic clamping block 34 is installed on the outer wall of the limit clamping frame 33, the clamping groove is arranged on the inner wall of the air tightness detection pool 29, the elastic clamping block 34 is arranged corresponding to the clamping groove, and the spring button 35 is slidably installed on the inner wall of the clamping groove.

[0031] Specifically, the products qualified after the appearance detection mechanism are pushed out by the ejector cylinder 27, then fall into the jar fixing frame 30, a plurality of packaging jars can be detected at the same time, and after the packaging jars are put into the jar fixing frame 30, the jar fixing frame 30 is used to fix the packaging jars, then the jar fixing frame 30 is driven by the hydraulic rod 36 to be put into the air tightness detection pool 29, the air tightness of the jar is detected by the air inlet pipe 32, and the whole process does not need to be detected one by one, so that the detection efficiency is improved.

[0032] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Additionally, unless otherwise specified, the use of relative terms, such as "about", "approximately", "substantially", "notably", "notably", and the like, are intended to convey that the value of a given element is within a reasonable range of values that can be expected to occur in the given context.

[0033] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and are not limiting of the scope of the application. The scope of the application is limited only by the claims and the full scope of equivalents thereof.

Claims

1. A feeding device for testing the airtightness of packaging cans, comprising a first conveyor frame (1), a second conveyor frame (2), an appearance inspection mechanism, a can fixing frame (30), and an airtightness testing pool (29), characterized in that: The first conveyor frame (1) is provided with a first conveyor belt (3), and the second conveyor frame (2) is provided with a second conveyor belt (7). The first conveyor frame (1) and the second conveyor frame (2) are respectively provided with a first electromagnet (4) and a second electromagnet (9). The end of the second conveyor frame (2) is located below the tail of the first conveyor frame (1), and the first conveyor frame (1) and the second conveyor frame (2) are vertically arranged. The appearance inspection mechanism is set on one side of the second conveyor frame (2). The appearance inspection mechanism consists of a dropping plate (12), an inspection table (13), a rotating roller (14), an air guide pipe (18), and a discharge plate (28). The end of the dropping plate (12) abuts against one side of the second conveyor belt (7). The rotating roller (14) is set inside the inspection table (13), and the air guide pipe (18) is set directly above the inspection table (13). The tank fixing bracket (30) is set on one side of the appearance inspection mechanism and the tank fixing bracket (30) is set on the airtightness test pool (29).

2. The feeding device for testing the airtightness of packaging cans according to claim 1, characterized in that: The top of the first conveyor frame (1) is equipped with two sets of symmetrically arranged limit frames (5). The top of the limit frames (5) is equipped with side rollers (6) arranged in a linear array. The distance between the side rollers (6) on the two sets of limit frames (5) is consistent with the diameter of the packaging can. The first electromagnet (4) consists of two parts. The first part is located in the middle part inside the first conveyor frame (1), and the second part is located on one side of the tail of the first conveyor belt (3).

3. The feeding device for testing the airtightness of packaging cans according to claim 1, characterized in that: The surface of the second conveyor belt (7) is provided with an arc-shaped boss (8), and the end of the second conveyor frame (2) is provided with a receiving groove (10). The receiving groove (10) is composed of an inclined support (1001), an arc-shaped baffle (1002) and an inclined baffle (1003). The arc-shaped baffle (1002) is located at the bottom of one of the inclined supports (1001), and the inclined baffle (1003) is located on one side of the inclined support (1001). The width of the second conveyor belt (7) is longer than the length of the packaging can.

4. The feeding device for testing the airtightness of packaging cans according to claim 1, characterized in that: The top of the second conveyor frame (2) is provided with a sorting frame (11). The sorting frame (11) consists of a pressure plate (1101), an adjusting bolt (1102), and a fixing plate (1103). The fixing plate (1103) is mounted on the top of the second conveyor frame (2). The adjusting bolt (1102) is threadedly connected to the fixing plate (1103). The bottom of the adjusting bolt (1102) is rotatably connected to the pressure plate (1101). The pressure plate (1101) is located in the middle position of the second conveyor frame (2).

5. A feeding device for testing the air tightness of packaging cans according to claim 1, characterized in that: The material drop plate (12) is inclined and the bottom of the material drop plate (12) is installed on one side of the inspection table (13). An inclined cylindrical arc groove is opened on the surface of the inspection table (13). A groove is opened at the center of the bottom of the cylindrical arc groove. The rotating roller (14) is located in the middle of the groove. The end of the rotating roller (14) is connected to the drive motor (16) through the coupling. An ejector cylinder (27) is installed inside the groove. The ejector cylinder (27) is located on one side of the rotating roller (14). The end of the inspection table (13) is fixedly connected to the mounting plate (15). A fixing frame (17) is installed on the front of the mounting plate (15). The air guide pipe (18) is installed on the fixing frame (17). The air guide pipe (18) is inclined and the inclination angle is consistent with the inclination angle of the cylindrical arc groove.

6. A feeding device for testing the airtightness of packaging cans according to claim 5, characterized in that: A miniature air pump (20) is provided on the back of the mounting plate (15). The air guide pipe (18) has bottom exhaust ports (1801) arranged in a linear array. The tail of the air guide pipe (18) has a pressure relief hole (1802). Multiple rotating pins (1803) are rotatably connected to the outer surface of the air guide pipe (18) and are arranged in a one-to-one correspondence with the bottom exhaust ports (1801). A sealing baffle (1804) is provided on the rotating pin (1803). The sealing baffle (1804) abuts against the bottom exhaust port (1801). A pressure sensor (19) is installed on the air guide pipe (18).

7. A feeding device for testing the airtightness of packaging cans according to claim 6, characterized in that: A pushing mechanism is provided on the rear side of the testing platform (13). The pushing mechanism consists of a fixed box (39), a sliding top block (21), an internal electromagnet (22), a spring sleeve (23), and an adsorption armature (24). The fixed box (39) is installed on one side of the testing platform (13). The sliding top block (21) is slidably disposed on the top of the fixed box (39). The internal electromagnet (22) is installed inside the fixed box (39). The spring sleeve (23) is disposed on one side of the internal electromagnet (22). The end of the spring sleeve (23) is fixedly connected to the adsorption armature (24). The top of the adsorption armature (24) is fixedly connected to the bottom of the sliding top block (21). A collection box (25) is installed on the front side of the testing platform (13). The bottom of the collection box (25) is inclined. A box door (26) is slidably disposed on one side of the collection box (25).

8. A feeding device for testing the air tightness of packaging cans according to claim 1, characterized in that: The feeding plate (28) is installed on one side of the testing platform (13), the tank fixing frame (30) is set on one side of the feeding plate (28), and the top of the airtightness testing pool (29) is provided with a top bracket (37). A hydraulic rod (36) is installed on the top bracket (37), and the telescopic end of the hydraulic rod (36) is connected to the top of the tank fixing frame (30).

9. A feeding device for testing the airtightness of packaging cans according to claim 8, characterized in that: The tank fixing frame (30) is equipped with multiple inclined base frames (31). The inclined base frame (31) is composed of an arc plate and a connecting rod. An external air pump (38) is installed on the back of the top support (37). Multiple air inlet pipes (32) are installed on the inner wall of the inclined base frame (31), and the air inlet pipes (32) correspond one-to-one with the inclined base frame (31). The air inlet pipes (32) are connected to the external air pump (38). A limit card frame (33) is rotatably installed on the inner wall of the tank fixing frame (30). An arc-shaped card plate corresponding to the inclined base frame (31) is provided on the limit card frame (33). An elastic card block (34) is installed on the outer wall of the limit card frame (33). A card groove is opened on the inner wall of the airtightness test pool (29). The elastic card block (34) is set in accordance with the card groove. A spring button (35) is slidably installed on the inner wall of the card groove.

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