Plastic double-tube interface assembly and airtightness testing machine

Abstract

The present invention discloses an integrated machine for assembling and testing air tightness of a plastic double-tube interface, which belongs to the technical field of infusion bag production equipment. The integrated machine for assembling and testing air tightness of a plastic double-tube interface comprises a mounting plate, a mounting frame, a hot pressing mechanism, a testing mechanism and a transmission mechanism. The integrated machine for assembling and testing air tightness of a plastic double-tube interface in the present invention is provided with a mounting plate, a mounting frame, a hot pressing mechanism and a testing mechanism. The hot pressing mechanism can tightly connect the plastic double-tube interface piece with the infusion bag body, and the testing mechanism can perform a sealing test on the connected plastic double-tube interface piece and the infusion bag body, thereby improving production efficiency, and the test results are less affected by human factors, and can ensure the accuracy and consistency of the test; and the integrated machine integrates assembly and testing, reduces the floor space of the equipment, and thus saves production costs.

Description

Technical Field

[0001] The invention belongs to the technical field of infusion bag production equipment, and in particular relates to an integrated machine for assembling and testing air tightness of a plastic double-tube interface. Background Art

[0002] In the medical field, infusion bags are a common medical product widely used in various treatment scenarios. Infusion bags usually need to be connected to external devices or pipelines through interfaces to achieve liquid input or output. Among these interfaces, plastic double-tube interfaces have become one of the main choices for infusion bag connections due to their simple structure, easy use, and low cost.

[0003] However, during the assembly process of the plastic double-tube interface and the infusion bag body, how to ensure the sealing of the interface is a key issue. If the interface is not sealed well, liquid leakage may occur, which not only affects the treatment effect, but also may cause safety risks such as infection. Therefore, it is particularly important to perform airtightness testing on the assembled plastic double-tube interface and the infusion bag body.

[0004] However, traditional air tightness testing methods are usually performed manually, which is not only inefficient, but also the test results are greatly affected by human factors, making it difficult to ensure the accuracy and consistency of the test. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated machine for assembling and testing air tightness of a plastic double-tube interface, which is used to solve the technical problem that the air tightness testing method in the prior art is usually performed manually, which is not only inefficient, but also the test results are greatly affected by human factors, making it difficult to ensure the accuracy and consistency of the test.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The integrated machine for assembling and testing air tightness of a plastic double-tube interface comprises: a mounting plate; a mounting frame mounted on the top surface of the mounting plate; a hot pressing mechanism located between the mounting plate and the mounting frame and used for mounting the plastic double-tube interface component in an infusion bag body; a testing mechanism slidably mounted on the top surface of the mounting plate and used for testing the air tightness of the assembled plastic double-tube interface component and the infusion bag body; and a transmission mechanism used for driving the testing mechanism to move horizontally.

[0008] Preferably, the plastic double-tube interface part includes: a tail end; a first connecting tube, which is installed through the tail end; a second connecting tube, which is installed through the tail end; a first interface, which is connected to the first connecting tube; and a second interface, which is connected to the second connecting tube.

[0009] Preferably, the hot pressing mechanism includes: a fixed seat, installed on the top surface of the mounting plate, and having a heater arranged inside; a hydraulic cylinder, installed on the bottom surface of the mounting frame; a movable seat, fixedly connected to the extended end of the hydraulic cylinder, and having a heater arranged inside, and located directly above the fixed seat; two storage grooves, respectively opened on the top surface of the fixed seat and the bottom surface of the movable seat, matching the tail end.

[0010] Preferably, the detection mechanism includes: a movable plate, slidably mounted on the top surface of the mounting plate; a connecting block, mounted on the top surface of the movable plate; a first sealing seat, fixedly connected to the connecting block, and used for sealing the first interface of the plastic double-tube interface member; a second sealing seat, fixedly connected to the connecting block, and used for sealing the second interface of the plastic double-tube interface member; an air pump, mounted on the top surface of the movable plate; a cross pipe, connected to the air extraction pipe of the air extraction pump, installed through the first sealing seat, and having an outer diameter smaller than the inner diameter of the first connecting pipe and the first interface.

[0011] Preferably, the detection mechanism also includes: an air pressure detector installed in the transverse tube; a one-way valve installed on the transverse tube; a pressure gauge installed on the transverse tube and located between the one-way valve and the first sealing seat; and a plurality of ball bearings, all installed on the bottom surface of the movable plate.

[0012] Preferably, the integrated machine for assembling and testing air tightness of the plastic double-tube interface further includes: a slide groove, which is provided on the mounting frame; a through groove, which is installed through the mounting plate; and two support plates, which are both installed on the bottom surface of the mounting plate.

[0013] Preferably, the transmission mechanism includes: a tooth plate, fixedly connected to the movable seat and slidably connected to the slide groove; a gear, meshingly connected to the tooth plate; a lead screw, installed through the gear and rotatably connected to the two support plates; a lead screw nut, sleeved on the lead screw; a connecting plate, one end of which is connected to the lead screw nut, and the other end of which passes through the through slot and is connected to the movable plate.

[0014] Preferably, the integrated assembly and airtightness detection machine for the plastic double-tube interface also includes a control system, which includes: a data acquisition and entry module, which is used to collect comprehensive data information of the infusion bag body and the airtightness detection integrated machine, wherein the comprehensive data information includes the rigidity data of the infusion bag body, the thickness data of the infusion bag body, the inner diameter data of the cross tube, the environmental pressure data and the surface area data of the infusion bag body; a data analysis module, which generates a pumping intensity demand coefficient based on the comprehensive data information, and generates a corresponding pumping intensity level based on the pumping intensity demand coefficient; a data acquisition module, which is used to collect a historical training data set for the infusion bag body and the airtightness detection integrated machine, the historical training data set includes comprehensive pumping influence data and pumping time; wherein the comprehensive pumping influence data includes comprehensive data information and pumping intensity data of the pumping pump; a time prediction module, which trains a machine learning model for predicting the pumping time based on the historical training data set, collects real-time comprehensive pumping influence data, and inputs it into the trained machine learning model to predict the pumping time.

[0015] Preferably, the extraction intensity requirement coefficient is generated as follows:

[0016] ;

[0017] In the formula, The suction strength Demand coefficient, is the rigidity data of the infusion bag body, is the thickness data of the infusion bag body, is the inner diameter data of the cross tube, is the environmental pressure data, is the surface area data of the infusion bag body, , , , and are weight coefficients, , , , and Both are greater than 0.

[0018] Preferably, the generation method of the pumping intensity level is as follows: the pumping intensity level includes level one intensity, level two intensity and level three intensity; the threshold range of the preset pumping intensity requirement coefficient is and , < ;like At this time, the data analysis module generates a first-level intensity; if , at this time, the data analysis module generates the secondary intensity; if ,At this point, the data analysis module generates three levels of intensity.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. The integrated machine for assembling and testing air tightness of the plastic double-tube interface of the present invention is equipped with a mounting plate, a mounting frame, a hot pressing mechanism and a testing mechanism. The hot pressing mechanism can tightly connect the plastic double-tube interface piece with the infusion bag body, and the testing mechanism can perform a sealing test on the connected plastic double-tube interface piece and the infusion bag body, thereby improving production efficiency, and the test results are less affected by human factors, and the accuracy and consistency of the test can be guaranteed; and the integrated machine integrates assembly and testing, reduces the floor space of the equipment, and thus saves production costs.

[0021] 2. The transmission mechanism in the present invention is equipped with a tooth plate, a gear, a screw, a screw nut and a connecting plate. The transmission mechanism can drive the detection mechanism to move during the hot pressing process, ensuring that the detection mechanism can accurately seal the first interface and the second interface of the connected plastic double-tube interface component, thereby facilitating the use of a vacuum pump, a cross tube, an air pressure detector and a pressure gauge to perform sealing detection on the plastic double-tube interface component and the infusion bag body; and the transmission mechanism can drive the detection mechanism to move horizontally, without the need for manual operation and the need to set up an independent power source, thereby reducing costs.

[0022] 3. The integrated machine for assembling and testing air tightness of the plastic double-tube interface in the present invention is equipped with a control system, which can accurately control the vacuuming time and intensity through precise data analysis and machine learning model prediction. By accurately controlling the running time and intensity of the vacuum pump, the control system can avoid unnecessary energy consumption and reduce production costs. The control system can automatically adjust the detection parameters according to the characteristics of different infusion bag bodies, and is suitable for infusion bag bodies of different specifications and types, with strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 The three-dimensional assembly of the plastic double-tube interface and the airtightness detection integrated machine of the present invention Figure 1 ;

[0025] Figure 2 The three-dimensional assembly of the plastic double-tube interface and the airtightness detection integrated machine of the present invention Figure 2 ;

[0026] Figure 3 It is a schematic diagram of the assembly structure of the mounting plate, the mounting frame and the support plate in the present invention;

[0027] Figure 4 It is a three-dimensional diagram of the plastic double-tube interface member of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the hot pressing mechanism in the present invention;

[0029] Figure 6 The three-dimensional structure of the detection mechanism in the present invention Figure 1 ;

[0030] Figure 7 The three-dimensional structure of the detection mechanism in the present invention Figure 2 ;

[0031] Figure 8 It is a three-dimensional diagram of the transmission mechanism in the present invention;

[0032] Fig. 9 It is a module diagram of the control system in the present invention;

[0033] Reference numerals: 100, mounting plate; 101, mounting frame; 102, slide groove; 103, through groove; 104, support plate; 110, hot pressing mechanism; 111, fixed seat; 112, hydraulic cylinder; 113, movable seat; 114, storage groove; 120, detection mechanism; 121, movable plate; 122, connecting block; 123, first sealing seat; 124, second sealing seat; 125, vacuum pump; 126, horizontal pipe; 1 261. Air pressure detector; 127. One-way valve; 128. Air pressure gauge; 129. Ball bearing; 130. Transmission mechanism; 131. Tooth plate; 132. Gear; 133. Lead screw; 134. Lead screw nut; 135. Connecting plate; 136. Sliding rod; 200. Plastic double-tube interface; 201. Tail end; 202. First connecting tube; 203. Second connecting tube; 204. First interface; 205. Second interface. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Figure 1 and Figure 2As shown, the integrated machine for assembling and testing air tightness of a plastic double-tube interface includes a mounting plate 100 , a mounting frame 101 , a hot pressing mechanism 110 , a testing mechanism 120 and a transmission mechanism 130 .

[0036] Two support plates 104 are installed on the bottom surface of the mounting plate 100. The mounting frame 101 is installed on the top surface of the mounting plate 100; the mounting frame 101 is door-shaped. The hot pressing mechanism 110 is located between the mounting plate 100 and the mounting frame 101, and the hot pressing mechanism 110 is used to install the plastic double-tube interface 200 in the infusion bag body; the detection mechanism 120 is slidably installed on the top surface of the mounting plate 100, and the detection mechanism 120 is used to perform sealing detection on the assembled plastic double-tube interface 200 and the infusion bag body; the transmission mechanism 130 is used to drive the detection mechanism 120 to move horizontally.

[0037] Specifically, the plastic double-tube interface component 200 is placed in the infusion bag body, and then the plastic double-tube interface component 200 and the infusion bag body are heat-pressed by the heat-pressing mechanism 110 to connect the plastic double-tube interface component 200 and the infusion bag body.

[0038] When the hot pressing mechanism 110 performs hot pressing on the infusion bag body and the plastic double-tube interface component 200, the transmission mechanism 130 will drive the detection mechanism 120 to move, thereby connecting the detection mechanism 120 with the plastic double-tube interface component 200, and then, the detection mechanism 120 will perform a sealing test on the connected infusion bag body and the plastic double-tube interface component 200.

[0039] After the test is completed, the testing mechanism 120 is separated from the plastic double-tube interface 200. If the test result shows that the sealing is qualified, the assembled infusion bag body will be processed to the next step; if the testing result shows that the sealing of the testing mechanism 120 is unqualified, the assembled infusion bag body will be placed in an unqualified storage container.

[0040] like Figure 4 As shown, the plastic double-tube interface 200 includes a tail end 201, a first connecting tube 202, a second connecting tube 203, a first interface 204 and a second interface 205. The tail end 201 is used to connect with the infusion bag body. The first connecting tube 202 is installed through the tail end 201; the second connecting tube 203 is installed through the tail end 201; the first interface 204 is connected to the first connecting tube 202; the second interface 205 is connected to the second connecting tube 203.

[0041] Specifically, the tail end 201 is used to connect with the infusion bag body, and the first interface 204, the first connecting tube 202, the second interface 205, the second connecting tube 203 and the tail end 201 are integrally formed. When the tail end 201 is connected with the infusion bag body, the first interface 204 and the first connecting tube 202 are connected with the infusion bag body; the second interface 205 and the second connecting tube 203 are also connected with the infusion bag body.

[0042] like Figure 1 and Figure 5 As shown, the hot pressing mechanism 110 includes a fixed seat 111, a hydraulic cylinder 112, a movable seat 113 and two storage slots 114. The fixed seat 111 is mounted on the top surface of the mounting plate 100, and a heater is arranged inside the fixed seat 111; the hydraulic cylinder 112 is mounted on the bottom surface of the mounting frame 101; the movable seat 113 is fixedly connected to the extended end of the hydraulic cylinder 112, and a heater is arranged inside the movable seat 113, and the movable seat 113 is located directly above the fixed seat 111; the two storage slots 114 are respectively opened on the top surface of the fixed seat 111 and the bottom surface of the movable seat 113, and the two storage slots 114 are matched with the tail end 201.

[0043] Specifically, the infusion bag body is placed in the storage groove 114 on the fixing seat 111, and then the tail end 201 of the plastic double-tube interface 200 is placed into the infusion bag body.

[0044] Then, by starting the hydraulic cylinder 112, the extended end of the hydraulic cylinder 112 drives the movable seat 113 to move downward, and the movable seat 113 cooperates with the fixed seat 111 to extrude the infusion bag body and the plastic double-tube interface 200. Then, by starting the heater in the movable seat 113 and the fixed seat 111, the movable seat 113 and the fixed seat 111 are heated, and then the infusion bag body and the tail wing end 201 of the plastic double-tube interface 200 are heated, so that the infusion bag body and the tail wing end 201 of the plastic double-tube interface 200 are hot-pressed together.

[0045] Of course, you can also start the heaters in the movable seat 113 and the fixed seat 111 to heat the movable seat 113 and the fixed seat 111, then place the infusion bag body and the plastic double-tube interface 200 in the fixed seat 111, and finally start the hydraulic cylinder 112 to make the movable seat 113 and the fixed seat 111 hot-press the infusion bag body and the plastic double-tube interface 200.

[0046] like Figure 1 , Figure 6 and Figure 7 As shown, the detection mechanism 120 includes a moving plate 121 , a connecting block 122 , a first sealing seat 123 , a second sealing seat 124 , an air pump 125 and a transverse pipe 126 .

[0047] The movable plate 121 is slidably installed on the top surface of the mounting plate 100; the connecting block 122 is installed on the top surface of the movable plate 121; the first sealing seat 123 is fixedly connected to the connecting block 122, and the first sealing seat 123 is used to block the first interface 204 of the plastic double-tube interface part 200; the second sealing seat 124 is fixedly connected to the connecting block 122, and the second sealing seat 124 is used to block the second interface 205 of the plastic double-tube interface part 200; the vacuum pump 125 is installed on the top surface of the movable plate 121; the transverse tube 126 is connected to the vacuum pipe of the vacuum pump 125, and the transverse tube 126 is installed through the first sealing seat 123, and the outer diameter of the transverse tube 126 is smaller than the inner diameter of the first connecting tube 202 and the first interface 204.

[0048] Specifically, by moving the plate 121 toward the fixed seat 111, the connecting block 122, the first sealing seat 123, the second sealing seat 124, the cross tube 126 and the vacuum pump 125 are driven to move, so that the cross tube 126 passes through the first interface 204 and the first connecting tube 202 and enters into the infusion bag body, so that the first sealing seat 123 seals the first interface 204, and the second sealing seat seals the second interface 205.

[0049] like Figure 6 and Figure 7 As shown, the detection mechanism 120 also includes an air pressure detector 1261, a one-way valve 127, a pressure gauge 128 and a plurality of balls 129. The air pressure detector 1261 is installed in the transverse tube 126; the one-way valve 127 is installed on the transverse tube 126; the pressure gauge 128 is installed on the transverse tube 126, and the pressure gauge 128 is located between the one-way valve 127 and the first sealing seat 123; and the plurality of balls 129 are installed on the bottom surface of the moving plate 121.

[0050] Specifically, when it is necessary to test the sealing performance of the infusion bag body and the plastic double-tube interface 200, the transverse tube 126 is inserted into the infusion bag body, the first interface 204 is sealed by the first sealing seat 123, and the second interface 205 is sealed by the second sealing seat 124. Then, the air pump 125 is started to extract the air in the infusion bag body through the transverse tube 126, so that the infusion bag body is in a negative pressure state, and the internal air pressure state of the infusion bag body is recorded by the barometer 128, and then the air pump 125 is turned off for a period of time. After the specified time is reached, observe the receiver of the pressure gauge 128 or the pressure detector 1261 (the receiver is located between the first sealing seat 123 and the vacuum pump 125, not shown in the figure). If the internal air pressure state of the infusion bag body is the same as before, it indicates that the sealing of the infusion bag body and the plastic double-tube interface 200 is qualified. If the internal air pressure state of the infusion bag body is higher than before, it means that external air has entered the infusion bag body, which further indicates that the sealing of the infusion bag body and the plastic double-tube interface 200 is unqualified.

[0051] like Figure 1and Figure 3 As shown, the integrated machine for assembling and testing air tightness of the plastic double-tube interface further includes a slide slot 102, a through slot 103 and two support plates 104. The slide slot 102 is provided on the mounting frame 101, and the through slot 103 is installed on the mounting plate 100 through and through.

[0052] like Figure 1 and Figure 8 As shown, the transmission mechanism 130 includes a tooth plate 131, a gear 132, a lead screw 133, a lead screw nut 134 and a connecting plate 135. The tooth plate 131 is fixedly connected to the movable seat 113, and the tooth plate 131 is slidably connected to the slide slot 102; the gear 132 is meshedly connected to the tooth plate 131; the lead screw 133 is installed through the gear 132, and the lead screw 133 is rotatably connected to the two support plates 104; the lead screw nut 134 is sleeved on the lead screw 133; one end of the connecting plate 135 is connected to the lead screw nut 134, and the other end of the connecting plate 135 passes through the through slot 103 and is connected to the movable plate 121.

[0053] A slide bar 136 is installed on the bottom surface of the mounting plate 100 . The slide bar 136 passes through the connecting plate 135 and is slidably connected to the connecting plate 135 . By providing the slide bar 136 , the connecting plate 135 is supported without affecting the movement of the connecting plate 135 .

[0054] Specifically, when the extended end of the hydraulic cylinder 112 moves downward, it will drive the tooth plate 131 to move downward. Since the tooth plate 131 is meshed with the gear 132, when the tooth plate 131 moves downward, the gear 132 will rotate, thereby driving the screw 133 to rotate, and then causing the screw nut 134 to move horizontally along the screw 133, and then driving the movable plate 121 to move through the connecting plate 135, thereby causing the components installed on the top surface of the movable plate 121 to move toward the fixed base 111.

[0055] On the contrary, when the extended end of the hydraulic cylinder 112 moves upward, the movable plate 121 will move in a direction away from the fixing seat 111 .

[0056] Working principle: When in use, the infusion bag body is placed in the storage groove 114 on the fixing seat 111, and then the tail end 201 of the plastic double-tube interface 200 is placed into the infusion bag body.

[0057] By starting the hydraulic cylinder 112, the extended end of the hydraulic cylinder 112 drives the movable seat 113 to move downward, and then the movable seat 113 cooperates with the fixed seat 111 to extrude the infusion bag body and the plastic double-tube interface 200. Then, by starting the heater in the movable seat 113 and the fixed seat 111, the movable seat 113 and the fixed seat 111 are heated, and then the infusion bag body and the tail wing end 201 of the plastic double-tube interface 200 are heated, so that the infusion bag body and the tail wing end 201 of the plastic double-tube interface 200 are hot-pressed together.

[0058] When the extended end of the hydraulic cylinder 112 moves downward, it will drive the tooth plate 131 to move downward. Since the tooth plate 131 is meshed with the gear 132, when the tooth plate 131 moves downward, the gear 132 will rotate, thereby driving the screw 133 to rotate, and then the screw nut 134 will move horizontally along the screw 133, and then the moving plate 121 will be driven to move through the connecting plate 135, and then the connecting block 122, the first sealing seat 123, the second sealing seat 124, the cross tube 126 and the vacuum pump 125 will be driven to move, and then the cross tube 126 will pass through the first interface 204 and the first connecting tube 202 and enter into the infusion bag body, so that the first sealing seat 123 seals the first interface 204, and the second sealing seat seals the second interface 205.

[0059] Then, by starting the vacuum pump 125, the air in the infusion bag body is extracted through the cross tube 126, so that the infusion bag body is in a negative pressure state, and the current internal air pressure state of the infusion bag body is recorded by the barometer 128, and then the vacuum pump 125 is turned off for a period of time. After the specified time, the barometer 128 is observed again. If the internal air pressure state of the infusion bag body is consistent with before, it indicates that the sealing of the infusion bag body and the plastic double-tube interface 200 is qualified. If the internal air pressure state of the infusion bag body is higher than before, it means that external air has entered the infusion bag body, which further indicates that the sealing of the infusion bag body and the plastic double-tube interface 200 is unqualified.

[0060] After the detection is completed, by starting the hydraulic cylinder 112, the extended end of the hydraulic cylinder 112 drives the tooth plate 131 to move upward, thereby driving the gear 132 and the screw 133 to rotate, and then the screw nut 134 moves horizontally along the screw 133, and then drives the movable plate 121 to move through the connecting plate 135, and then the components installed on the top surface of the movable plate 121 move away from the fixed seat 111, so that the detection mechanism 120 is separated from the plastic double-tube interface 200, and finally, the infusion bag body and the plastic double-tube interface 200 are taken away after the detection is completed.

[0061] Finally, the infusion bag body and the plastic double-tube interface piece that have passed the sealing test are processed in the next step.

[0062] Example 2: Fig. 9 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that: the integrated machine for assembling and testing air tightness of the plastic double-tube interface also includes a control system;

[0063] The control system includes a data collection and entry module, a data analysis module, a data acquisition module and a time prediction module. The modules are connected by wired / wireless means to realize data transmission.

[0064] The data collection and entry module is used to collect comprehensive data information of the infusion bag body and the airtightness detection integrated machine, wherein the comprehensive data information includes the rigidity data of the infusion bag body, the thickness data of the infusion bag body, the inner diameter data of the cross tube 126, the environmental pressure data and the surface area data of the infusion bag body.

[0065] Specifically, the rigidity data of the infusion bag body is actively entered by the user, and the rigidity data of the infusion bag body can be obtained through tensile test measurement, specifically by applying a tensile force to the infusion bag body, measuring its stress and strain in the tensile direction, and obtaining the tensile modulus of the material; the higher the tensile modulus, the stronger the rigidity of the infusion bag body.

[0066] The thickness data of the infusion bag body can be obtained by measuring with a thickness gauge.

[0067] The inner diameter data of the cross tube 126 is actively input by the user, and the inner diameter data of the cross tube 126 can be obtained by measuring the cross tube 126 with a length measuring instrument.

[0068] Environmental pressure data refers to the pressure in the processing workshop, which can be obtained by measuring the temperature sensor;

[0069] The surface area data of the infusion bag body is actively input by the user, and the surface area of ​​the infusion bag body can be measured and calculated by a length measurement tool.

[0070] The data analysis module generates a pumping intensity demand coefficient based on the comprehensive data information, and generates a corresponding pumping intensity level based on the pumping intensity demand coefficient;

[0071] The extraction intensity requirement coefficient is generated as follows:

[0072] ;

[0073] In the formula, is the extraction intensity requirement coefficient, is the rigidity data of the infusion bag body, is the thickness data of the infusion bag body, is the inner diameter data of the cross pipe 126, is the environmental pressure data, is the surface area data of the infusion bag body, , , , ,and are weight coefficients, which are determined by technicians in this field according to specific application requirements. , , , and All are greater than 0;

[0074] Among them, the stronger the rigidity of the infusion bag body, the less likely it is to deform during the air pumping process, so the air pumping strength needs to be increased. Conversely, the lower the rigidity of the infusion bag body, the easier it is to shrink during air pumping, and the lower the air pumping strength required.

[0075] The thicker the infusion bag body is, the less likely it is to deform during the air pumping process. Therefore, the air pumping strength needs to be increased. Conversely, the thinner the infusion bag body is, the easier it is to shrink during air pumping, and the lower the air pumping strength required.

[0076] The larger the inner diameter of the transverse tube 126 is, the greater the fluid resistance is, and the air flow speed is reduced, so it is necessary to increase the intensity of the air extraction. On the contrary, the smaller the inner diameter of the transverse tube 126 is, the smoother the air can flow, so the required air extraction intensity is lower.

[0077] When the external environmental pressure is high, the pressure difference between the inside and outside of the infusion bag increases, and the required pumping intensity becomes lower; when the external environmental pressure is low (such as in high altitude areas), the pressure difference decreases, the air flow rate slows down, and the pumping intensity needs to be increased.

[0078] The larger the surface area of ​​the infusion bag body, the larger the volume inside the infusion bag body, the larger the internal air volume, and the greater the required pumping intensity; conversely, the smaller the surface area of ​​the infusion bag body, the smaller the internal volume, and the lower the required pumping intensity.

[0079] It should be noted that the formulas involved in the above-mentioned are all calculated by removing dimensions and taking numerical values. They are a formula that is closest to the actual situation obtained by collecting a large amount of data and performing software simulation. The weight coefficients in the formulas and the various preset thresholds in the analysis process are set by technical personnel in this field according to actual conditions or obtained by simulating a large amount of data; the size of the weight coefficient is to quantify each parameter to obtain a specific value for subsequent comparison. The size of the weight coefficient depends on the amount of sample data and the corresponding processing coefficients initially set by technical personnel in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameters and the quantized values.

[0080] The pumping intensity levels are generated as follows:

[0081] The suction intensity levels include level one, level two and level three, wherein the level one, level two and level three increase in sequence, and the level one, level two and level three are all the suction intensities of the suction pump 125 (i.e., the suction pump 125 has a greater power and a stronger suction capacity);

[0082] The threshold range of the preset pumping intensity demand coefficient is and , < ;

[0083] like ,At this point, the data analysis module generates the first-level intensity;

[0084] like ,At this point, the data analysis module generates the secondary intensity;

[0085] like ,At this point, the data analysis module generates three levels of intensity.

[0086] in, and It is determined by those skilled in the art according to specific application requirements.

[0087] Exemplarily, the suction intensities of the vacuum pump 125 corresponding to the first-level intensity, the second-level intensity and the third-level intensity are 10 (L / min), 15 (L / min) and 20 (L / min), respectively; the suction intensity of the vacuum pump 125 can also be customized according to specific circumstances; the suction intensity of the vacuum pump 125 is controlled according to the corresponding suction intensity level.

[0088] The data acquisition module is used to collect the historical training data set of the infusion bag body and the airtightness detection integrated machine, and the historical training data set includes the comprehensive impact data of air extraction and the duration of air extraction; wherein the comprehensive impact data of air extraction includes the comprehensive data information and the air extraction intensity data of the air extraction pump 125, and the air extraction intensity data of the air extraction pump 125 can be obtained by measuring with a flow meter;

[0089] The vacuuming time refers to the time required from the start of vacuuming the infusion bag body to the time when the infusion bag body is in a negative pressure state. The vacuuming time can be obtained by a timer.

[0090] The time prediction module trains a machine learning model to predict the pumping time based on the historical training data set, collects real-time comprehensive impact data of pumping, and inputs it into the trained machine learning model to predict the pumping time;

[0091] The training method of the machine learning model for predicting the pumping time includes:

[0092] Convert the collected comprehensive impact data of air extraction into a corresponding set of feature vectors;

[0093] Each group of feature vectors is used as the input of the machine learning model. The machine learning model takes the pumping time corresponding to each group of comprehensive pumping impact data as the output, and the actual corresponding pumping time of each group of comprehensive pumping impact data is used as the prediction target. Minimizing the loss function value of the machine learning model is used as the training target. The training is stopped when the loss function value of the machine learning model is less than or equal to the preset target loss value.

[0094] The machine learning model can be one of the models such as SVM regression, random forest regression or neural network regression.

[0095] The loss function value of the machine learning model is the mean square error;

[0096] Mean square error is one of the commonly used loss functions. Minimization is used as the goal to train the model so that the machine learning model better fits the data, thereby improving the performance and accuracy of the model;

[0097] In the loss function is the loss function value of the machine learning model, x is the feature vector group number; m is the number of feature vector groups; is the pumping time predicted by the x-th group of feature vectors, is the actual pumping time corresponding to the xth group of eigenvectors;

[0098] Other model parameters of the machine learning model, target loss value, optimization algorithm, training set test set validation set ratio, and loss function optimization are all achieved through actual engineering implementation and continuous experimental tuning.

[0099] The running time of the air pump 125 is controlled according to the predicted air pumping time; when the running time of the air pump 125 is the same as the predicted air pumping time, the air pump 125 is controlled to be powered off and stop running.

[0100] To summarize, the control system can accurately control the duration and intensity of vacuuming through precise data analysis and machine learning model prediction. By precisely controlling the operating time and intensity of the vacuum pump, the control system can avoid unnecessary energy consumption and reduce production costs. The control system can automatically adjust the detection parameters according to the characteristics of different infusion bag bodies, and is suitable for infusion bag bodies of different specifications and types, with strong adaptability.

[0101] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0102] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The integrated machine for assembling and testing the air tightness of the plastic double-tube interface is characterized in that: include: Mounting plate (100); A mounting frame (101) mounted on the top surface of the mounting plate (100); A heat pressing mechanism (110), located between the mounting plate (100) and the mounting frame (101), and used for mounting the plastic double-tube interface member (200) in the infusion bag body; A detection mechanism (120) is slidably mounted on the top surface of the mounting plate (100) and is used to perform a sealing test on the assembled plastic double-tube interface piece (200) and the infusion bag body; A transmission mechanism (130) for driving the detection mechanism (120) to move horizontally; The plastic double-tube interface (200) comprises: Tail end (201); A first connecting pipe (202) is installed through the tail wing end (201); A second connecting pipe (203) is installed through the tail wing end (201); A first interface (204), connected to the first connecting pipe (202); A second interface (205) connected to the second connecting pipe (203); The hot pressing mechanism (110) comprises: A fixing seat (111), mounted on the top surface of the mounting plate (100), and having a heater disposed therein; A hydraulic cylinder (112) mounted on the bottom surface of the mounting frame (101); A movable seat (113) is fixedly connected to the extended end of the hydraulic cylinder (112), has a heater disposed therein, and is located directly above the fixed seat (111); Two storage grooves (114) are respectively provided on the top surface of the fixed seat (111) and the bottom surface of the movable seat (113), and match the tail wing end (201); The detection mechanism (120) comprises: A movable plate (121) is slidably mounted on the top surface of the mounting plate (100); A connecting block (122) is mounted on the top surface of the moving plate (121); A first sealing seat (123) fixedly connected to the connecting block (122) and used for sealing a first interface (204) of the plastic double-tube interface member (200); The second sealing seat (124) is fixedly connected to the connecting block (122) and is used to seal the second interface (205) of the plastic double-tube interface member (200); An air pump (125) is installed on the top surface of the movable plate (121); A transverse pipe (126), connected to the air extraction pipe of the air extraction pump (125), installed through the first sealing seat (123), and having an outer diameter smaller than the inner diameters of the first connecting pipe (202) and the first interface (204); An air pressure detector (1261) installed in the transverse pipe (126); a one-way valve (127), installed on the cross pipe (126); A pressure gauge (128) installed on the transverse pipe (126) and located between the one-way valve (127) and the first sealing seat (123); A plurality of balls (129) are mounted on the bottom surface of the movable plate (121); The integrated machine for assembling and testing the air tightness of the plastic double-tube interface also includes: A slide groove (102) is provided on the mounting frame (101); A through slot (103) is installed through the mounting plate (100); Two support plates (104), both mounted on the bottom surface of the mounting plate (100); The transmission mechanism (130) comprises: A tooth plate (131) is fixedly connected to the movable seat (113) and slidably connected to the slide groove (102); A gear (132) meshingly connected with the toothed plate (131); A lead screw (133) is installed through the gear (132) and is rotatably connected to the two support plates (104); A lead screw nut (134) sleeved on the lead screw (133); A connecting plate (135) has one end connected to the lead screw nut (134) and the other end passing through the through slot (103) and connected to the moving plate (121).

2. The integrated machine for assembling and testing air tightness of a plastic double-tube interface according to claim 1, characterized in that: Also included is a control system, the control system comprising: A data collection and input module is used to collect comprehensive data information of the infusion bag body and the airtightness detection integrated machine, wherein the comprehensive data information includes rigidity data of the infusion bag body, thickness data of the infusion bag body, inner diameter data of the cross tube (126), environmental pressure data and surface area data of the infusion bag body; The data analysis module generates a pumping intensity demand coefficient based on the comprehensive data information, and generates a corresponding pumping intensity level based on the pumping intensity demand coefficient; A data acquisition module is used to collect a historical training data set of an infusion bag body and an airtightness detection integrated machine, wherein the historical training data set includes comprehensive air extraction impact data and air extraction duration; wherein the comprehensive air extraction impact data includes comprehensive data information and air extraction intensity data of an air extraction pump (125); The time prediction module trains a machine learning model to predict the pumping time based on the historical training data set, collects real-time comprehensive pumping impact data, and inputs it into the trained machine learning model to predict the pumping time.

3. The integrated machine for assembling and testing air tightness of a plastic double-tube interface according to claim 2, characterized in that: The generation method of the extraction intensity requirement coefficient is as follows: Wherein, Xq is the required coefficient of the pumping strength, Gx is the rigidity data of the infusion bag body, Hd is the thickness data of the infusion bag body, Nj is the inner diameter data of the transverse tube (126), Yl is the ambient pressure data, Mj is the surface area data of the infusion bag body, and are weight coefficients, and Both are greater than 0.

4. The integrated machine for assembling and testing air tightness of a plastic double-tube interface according to claim 3, characterized in that: The pumping intensity levels are generated as follows: The levels of suction intensity include primary intensity, secondary intensity and tertiary intensity; The threshold range of the preset pumping intensity demand coefficient is Xq1 and Xq2, Xq1 <Xq2; If Xq≤Xq1, at this time, the data analysis module generates the first-level intensity; If Xq2≥Xq>Xq1, at this time, the data analysis module generates secondary intensity; If Xq>Xq2, at this time, the data analysis module generates the third level intensity.

Images