Sampling Method, Medium and Sampling System for a Filling Machine

Abstract

The present invention discloses a sampling method, medium and system for a filling machine, wherein the sampling and rejection of the filling machine share a single channel. The method includes the steps of: S1, marking the qualified bottles after the filling machine discharges bottles as the qualified state, and marking the unqualified bottles as the rejection state; S2, when sampling, obtaining the bottles in the qualified state corresponding to the inspection filling needles in the filling machine, marking them as the sampling state, and then emptying the bottles in the sampling and rejection channel; S3, conveying the bottles marked as the sampling state into the sampling and rejection channel. The present invention realizes accurate sampling by marking the bottles to be sampled as the sampling state; the above sampling method can be applied in the case where sampling and rejection share a single channel, without the need to separate the sampling and rejection channels, without increasing costs, and without changing the layout.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of pharmaceutical and food packaging machinery and equipment, and particularly relates to a sampling method, medium and sampling system for a filling machine. Background Art

[0002] The function of sampling is to randomly inspect some samples during the production process in order to study and analyze the performance of products or equipment. As an essential function that must be configured for a filling machine, its accuracy is undoubtedly a key performance indicator.

[0003] As Figure 1 shown, to achieve precise sampling by a filling machine, generally, sampling and rejection need to be divided into two independent channels, and the sampled products and rejected products do not interfere with each other. In the above sampling method, a set of gas distribution valves and an independent channel need to be added. Sterile gloves are required for both sampling and rejecting the bottles after sampling and rejection, which has high requirements for the spatial layout.

[0004] However, in actual situations, for the convenience of operation and maintenance and the rationality of spatial layout, the bottles are discharged through two channels. The qualified products are in an independent channel, and the sampled products and rejected products share a channel, as Figure 2 shown. However, due to the existence of rejected products, it is easy to cause the inability to distinguish the order of the sampled products, that is, they cannot correspond one by one to the order of the filling pump, and the accuracy of sampling is challenged. The specific operation process is as follows: Trigger the sampling function on the HMI. At this time, the rejection function is turned off, and the sampling logic is executed. A set of samples is output from the sampling channel. At this time, the operator manually takes out the bottles from the sampling channel. The above sampling logic has the following defects:

[0005] 1. There may be bottles rejected from the channel before sampling, and the starting order cannot be distinguished after sampling is completed.

[0006] 2. There is a time difference between triggering the sampling function on the HMI and the operator taking out the samples. If rejected products are generated during this period, the end position of the sampled products cannot be distinguished. Summary of the Invention

[0007] The technical problem to be solved by the present invention lies in: aiming at the technical problems existing in the prior art, the present invention provides a sampling method, medium and sampling system for a filling machine with precise sampling.

[0008] To solve the above technical problems, the technical solution proposed by the present invention is:

[0009] A sampling method for a filling machine, wherein the sampling and rejection of the filling machine share a channel, and the method includes the steps of:

[0010] S1. Mark the qualified bottles after the filling machine discharges the bottles as the qualified state, and mark the unqualified bottles as the rejected state;

[0011] S2. When sampling, obtain the bottles in the qualified state corresponding to the inspection filling needles in the filling machine, mark them as the sampling state, and then empty the bottles in the sampling rejection channel.

[0012] S3. Transport the bottles marked as the sampling state into the sampling rejection channel.

[0013] As a further improvement of the above technical solution:

[0014] Between step S2 and step S3, when there are bottles in the rejection state between the bottles in the sampling state and the sampling rejection port, output the corresponding bottles in the rejection state to the rejection channel, and empty the bottles in the sampling rejection channel.

[0015] Empty the bottles in the sampling rejection channel manually or by starting the evacuation component of the sampling rejection channel.

[0016] After emptying the bottles in the sampling rejection channel, detect whether there are bottles in the sampling rejection channel manually or by the detection component; if there are no bottles, proceed to step S3.

[0017] After step S3, when there are bottles in the rejection state within a predetermined distance after the bottles in the sampling state, suspend the transportation of the bottles.

[0018] The present invention also discloses a computer-readable storage medium, on which a computer program is stored, and the computer program executes the steps of the above method when being run by a processor.

[0019] The present invention further discloses a sampling system of a filling machine, including a memory and a processor, on which a computer program is stored, and the computer program executes the steps of the above method when being run by the processor.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] The sampling method of the filling machine of the present invention realizes accurate sampling by marking the bottles to be sampled as the sampling state; during the above sampling process, when there is rejection in front of or behind the bottles in the sampling state, corresponding rejection operations, evacuation operations and suspension operations are performed to avoid the interference of waste bottles on the sample bottles and ensure that the order of the sample bottles is not disturbed; the above sampling method can be applied to the case where sampling and rejection share a common channel, and the sampling rejection channel does not need to be separated, without increasing costs and without changing the layout. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of sampling and rejection being divided into two independent channels in the prior art.

[0023] Figure 2 It is a schematic structural diagram of sharing a single channel for sample taking and defective product rejection in the prior art.

[0024] Figure 3 It is a schematic diagram of assigning bottle status for the present invention.

[0025] Figure 4 It is a schematic diagram of the status of the bottle marked after sampling for the present invention.

[0026] Figure 5 It is a schematic diagram of the status of the present invention with defective products before sampling.

[0027] Figure 6 It is a schematic diagram of the status of the present invention with defective products before sampling (no need for defective product rejection).

[0028] Figure 7 It is a schematic diagram of the status of the present invention with defective products before sampling (defective product rejection is required).

[0029] Figure 8 It is an embodiment diagram of the sampling system of the present invention in specific applications.

[0030] Figure 9 It is a flowchart of the sampling method of the present invention in an embodiment.

[0031] Legend Explanation: 1. Filling machine; 2. Weighing dial; 3. Bottle discharging dial; 4. Intermediate dial; 5. Stoppering dial; 6. Defective product rejection dial; 7. Stopper hopper; 8. Sampling and defective product rejection port; 9. Sampling and defective product rejection channel. Detailed Embodiment

[0032] The present invention will be further described below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0033] As Figure 9 shown, the sampling method of the filling machine in the embodiment of the present invention, where the sampling and defective product rejection of the filling machine share a single channel, includes the steps:

[0034] S1. Mark the qualified bottles after being discharged from the filling machine as the qualified status, and mark the unqualified bottles as the defective product rejection status;

[0035] S2. When sampling, obtain the bottles in the qualified status corresponding to the inspection filling needle in the filling machine, mark them as the sampling status, and then empty the bottles in the sampling and defective product rejection channel 9;

[0036] S3. Convey the bottles marked as the sampling status into the sampling and defective product rejection channel 9.

[0037] In a specific embodiment, between step S2 and step S3, when there is a bottle in the rejection state between the bottle in the sampling state and the sampling rejection opening, the bottle in the corresponding rejection state is output into the sampling rejection channel 9, and the bottles in the sampling rejection channel 9 are emptied. Specifically, the bottles in the sampling rejection channel 9 are emptied manually or by starting the emptying component (such as the conveyor belt in the sampling rejection channel 9) of the sampling rejection channel 9.

[0038] In a specific embodiment, after emptying the bottles in the sampling rejection channel 9, it is detected whether there are bottles in the sampling rejection channel 9 manually or by a detection component (material sensor or camera image detection); if there are no bottles, step S3 is entered.

[0039] After step S3, when there is a bottle in the rejection state within a predetermined distance after the bottle in the sampling state, the conveyance of the bottles is paused until all the sampled bottles are taken away, and then the conveyance of the bottles is resumed.

[0040] The sampling method of the filling machine of the present invention marks the bottles to be sampled as the sampling state to achieve accurate sampling; during the above sampling process, when there is rejection in front of or behind the bottle in the sampling state, corresponding rejection operations, emptying operations, and pausing operations are performed to avoid the interference of rejected bottles on the sample bottles and ensure that the order of the sample bottles (the corresponding relationship between the sample bottles and the filling needles) is not disturbed; the above sampling method can be applied in the case where sampling and rejection share a single channel, and the sampling rejection channel 9 does not need to be separated, without increasing costs and without changing the layout.

[0041] The following further illustrates the method of the present invention with a complete specific embodiment:

[0042] As Figure 8 shown, in the entire filling machine structure, the bottles after being filled by the filling machine 1 sequentially pass through the post-weighing dial 2, the bottle-out dial 3, the intermediate dial 4, the stopper-adding dial 5, and the rejection dial 6. The qualified bottles enter the stopper magazine 7, and the unqualified bottles enter the sampling rejection channel 9 through the sampling rejection opening 8.

[0043] The status of the bottles is pre-assigned, divided into the sampling state and the rejection state; among them, the sampling state: after triggering sampling on the HMI, the bottles to be taken out are marked as the sampling state. For example: "0" means not sampling, and "1" means sampling; the rejection state: the bottles judged to be unqualified at the front-end station are marked as the rejection state. For example: "0" means qualified products, and "1" means rejected products.

[0044] Taking the equipment with 6 filling pumps as an example, the three status attributes of each bottle are shown as Figure 3 shown:

[0045] 1. After activation of sampling, a continuous group of bottles (bottles No. 1 - 6) will be found closest to the sampling rejection port and marked as in the sampling state. These 6 bottles will also enter the sampling rejection channel 9 after reaching the sampling rejection port, as Figure 4 shown. Of course, it is also possible to directly select 3 bottles, such as bottles No. 3 - 5, or bottles No. 2, 4, and 6. The selection of the above - mentioned bottles is specifically based on the actual situation.

[0046] 2. After triggering sampling on the HMI, the HMI prompts the operator to empty the original defective products in the channel; the operator can confirm the prompt on the HMI after manually cleaning the defective products on the sampling rejection channel 9. Of course, it is also possible to run the conveyor belt in the sampling rejection channel 9 for a certain distance to convey all the bottles out.

[0047] 3. After confirmation, the system searches for the closest complete group of bottles to the sampling rejection port. If there are no defective products among the bottles from the No. 1 bottle of the whole group to the sampling rejection port, sampling will be immediately executed, and the whole group of samples will be arranged in sequence according to the filling pump order (bottles No. 1 - 6). If there are defective products among the bottles from the No. 1 bottle of the whole group to the sampling rejection port, the existing defective products will be removed first, and then the system will pause and prompt the operator to take away the defective products. After confirmation is completed, sampling will be immediately executed, and the whole group of samples will be arranged in sequence according to the filling pump order (bottles No. 1 - 6), as Figure 5 shown.

[0048] 4. After sampling is completed, the HMI prompts the operator to take out the samples manually;

[0049] 5. During the prompt, in order to prevent defective products from being mixed into the samples, the system continuously judges whether there are subsequent defective products. When there is a defective product about to enter the sampling rejection channel 9, the machine will stop immediately and give a reminder, as Figure 6 shown;

[0050] Continuously monitor the status of the bottles at the sampling rejection channel 9 port. When the rejection status is "0", it means that the next bottle will not enter the sampling rejection channel 9 and will not interfere with the sampling order, and the equipment can continue to run, as Figure 7 shown.

[0051] When the rejection status of the bottle at the sampling rejection channel 9 port is "1", it means that the next bottle will enter the sampling rejection channel 9, which will interfere with the sampling order, and the machine will stop immediately, waiting for the operator to take away the sample bottles.

[0052] 6. After the operator takes away the samples, confirm the prompt on the HMI and resume operation.

[0053] The present invention also discloses a computer-readable storage medium, on which a computer program is stored, and the computer program, when run by a processor, executes the steps of the method as described above. The present invention further discloses a sampling system of a filling machine, including a memory and a processor, wherein a computer program is stored on the memory, and the computer program, when run by the processor, executes the steps of the method as described above. The medium and the sampling system of the present invention, corresponding to the above sampling method, also have the advantages as described in the above sampling method.

[0054] To implement all or part of the processes in the method of the above embodiments, the present invention may also be accomplished by a computer program instructing relevant hardware. The computer program may be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above various method embodiments may be implemented. Among them, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. The memory may be used to store the computer program and / or module. By running or executing the computer program and / or module stored in the memory, and invoking the data stored in the memory, the processor can implement various functions. The memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one magnetic disk storage device, flash device, or other volatile solid-state storage devices, etc.

[0055] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should be regarded as within the protection scope of the present invention.

Claims

1. A sampling method for a filling machine, wherein the sampling and rejection of the filling machine share a common channel, characterized in that, Including the steps: S1. Mark the qualified bottles after they are discharged from the filling machine as qualified status, and mark the unqualified bottles as rejected status; S2. When taking samples, obtain the bottles in qualified status corresponding to the filling needles to be inspected in the filling machine, mark them as sampling status, and then empty the bottles in the sampling rejection channel; S3. Convey the bottles marked as sampling status to the sampling rejection channel; Between step S2 and step S3, when there are bottles in rejected status between the bottles in sampling status and the sampling rejection opening, output the corresponding bottles in rejected status to the sampling rejection channel, and empty the bottles in the sampling rejection channel.

2. The sampling method of the filling machine according to claim 1, characterized in that Empty the bottles in the sampling rejection channel manually or by activating the emptying component of the sampling rejection channel.

3. The sampling method of the filling machine according to claim 2, characterized in that, After emptying the bottles in the sampling rejection channel, check whether there are bottles in the sampling rejection channel manually or by using the detection component; if there are no bottles, proceed to step S3.

4. The sampling method of the filling machine according to any one of claims 1-3, characterized in that, After step S3, when there are bottles in rejected status within a predetermined distance after the bottles in sampling status, suspend the conveyance of the bottles.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is run by the processor, it executes the steps of the sampling method of the filling machine as described in any one of claims 1 to 4.

6. A sampling system for a filling machine, comprising a memory and a processor, wherein a computer program is stored on the memory, characterized in that, When the computer program is run by the processor, it executes the steps of the sampling method of the filling machine as described in any one of claims 1 to 4.

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