Quick blind plate inserting device for metering pipeline in PVC (polyvinyl chloride) film production

Abstract

The utility model relates to the technical field of plastic product production, in particular to a quick blind plate inserting device for metering pipelines in PVC (polyvinyl chloride) film production, which comprises a plurality of metering pipelines, a plurality of blind plate inserting devices and a plurality of blind plate inserting devices, each metering pipeline is used for conveying a medium, and each metering pipeline is provided with at least one valve used for controlling the on-off of the metering pipelines; the input ends of the telescopic pipes are correspondingly connected to the output ends of the metering pipelines; the blind plate is constructed to be connected to the input end of the telescopic pipe; and the metering container is connected to the output end of the telescopic pipe. The plurality of telescopic pipes distributed corresponding to the metering pipelines are arranged above the metering container, the telescopic pipes can stretch out and draw back on the metering container, the corresponding telescopic pipes can be adjusted to be in a compressed state by the metering pipelines in a non-use state, the blind plates are filled in the telescopic pipes, and the telescopic pipes and the metering pipelines are blocked. Dripped raw materials are strictly limited from entering the metering container, so that the ratio of the raw materials is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a quick blind plate insertion device for a metering pipeline in PVC film production. Background Art

[0002] In the PVC production process, it is necessary to prepare a variety of liquid raw materials or additives according to the process, such as paraffin oil, soybean oil and other plasticizers, and the added liquid raw materials need to be measured. Since the batching pipeline includes multiple ones, they have a common output end, but only 2-3 liquids are needed for a certain product. In actual production, due to micro-leakage of the valve assembly, the currently produced products may have trace drips of other unused liquids. This kind of pollution is unacceptable for products with very high requirements, so it is necessary to propose a structure to completely isolate the liquid pipelines that are not needed in the batching process. Utility Model Content

[0003] In view of the technical problems existing in the metering pipeline in PVC production in the prior art, the first aspect of the utility model proposes a technical solution, a quick blind plate insertion device for the metering pipeline in PVC film production, comprising:

[0004] A plurality of metering pipelines, each of which is used to transport a medium, and each of which is provided with at least one valve for controlling the on-off of the metering pipeline;

[0005] A plurality of telescopic tubes, the input ends of which are correspondingly connected to the output ends of the metering pipeline;

[0006] a blind plate configured to be connectable to an input end of the telescopic tube;

[0007] A metering container connected to the output end of the telescopic tube and used for weighing the medium input from the telescopic tube into the metering container;

[0008] Wherein, a connecting pipe is provided at the output end of the metering pipeline, the telescopic pipe is connected to the connecting pipe, the connecting pipe and the metering container maintain a fixed distance, and the telescopic pipe can slide relative to the metering container along its axial direction to change the distance between the connecting pipe and the telescopic pipe;

[0009] When the telescopic tube is compressed to be separated from the connecting tube, the blind plate can be connected to the input end of the telescopic tube to disconnect the connecting tube from the telescopic tube.

[0010] Preferably, the connecting tube is constructed as a boss-shaped tube structure, and the telescopic tube includes an upper half and a lower half, the upper half of the telescopic tube is constructed to be able to engage with the boss-shaped tube structure and to make the connecting tube and the channels inside the telescopic tube communicate with each other, and the lower half of the telescopic tube is constructed to be columnar and can slide relative to the measuring container.

[0011] Preferably, the telescopic tube comprises an upper portion with a diameter greater than that of a lower portion, and the lower portion of the telescopic tube is sleeved with a spring so that the telescopic tube has a tendency to move toward the connecting tube.

[0012] Preferably, the diameter of the output end channel of the connecting tube is A, and the blind plate is constructed so that the diameter of the upper end surface is larger than A. When the blind plate is connected to the input end of the telescopic tube, the upper end surface of the blind plate fits with the lower end surface of the connecting tube.

[0013] Preferably, the blind plate is constructed in a boss shape.

[0014] Preferably, a mounting plate is connected above the metering container, and all the connecting pipes at the output ends of the metering pipelines are fixed to the mounting plate.

[0015] Preferably, the metering pipeline is provided with a first valve and a second valve, the first valve is a manual valve, the second valve is an automatic valve, and a filter is provided between the first valve and the second valve.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] The utility model arranges a plurality of telescopic tubes corresponding to the distribution of the metering pipelines above the metering container, the telescopic tubes can be telescoped on the metering container, the metering pipelines in a non-use state can adjust the corresponding telescopic tubes to a compressed state, and fill in blind plates to form a blockage between the telescopic tubes and the metering pipelines, strictly restricting the dripping raw materials from entering the metering container, so that the proportion of the raw materials is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a quick blind plate insertion device for a metering pipeline in PVC film production shown in the utility model;

[0020] Figure 2It is a schematic diagram of the blind plate shown in the utility model being filled between one of the connecting pipes and the telescopic pipe. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0022] It should be understood that when configuring liquid raw materials or additives in PVC film production, the metering pipeline requires a valve assembly that is frequently opened and closed to control the type and flow of the medium. Therefore, when the pumping pressure has not completely disappeared, the valve assembly still has a slight dripping phenomenon even in the closed state. Such dripping will add unnecessary raw materials or additives to certain products being configured, and will also affect the accuracy of the configuration. Therefore, the present application aims to solve this problem.

[0023] Combination Figure 1 As shown, the first aspect of the utility model proposes a technical solution, a quick blind plate insertion device for metering pipelines in PVC film production, including multiple metering pipelines 10, telescopic tubes 20, blind plates 30 and metering containers 40.

[0024] Each metering pipeline 10 among the multiple metering pipelines 10 is used to transport one of the media, and the metering pipeline 10 is provided with at least one valve for controlling the on and off of the metering pipeline 10 .

[0025] Optionally, a first valve 11 and a second valve 13 are provided on the metering pipeline 10. The first valve 11 is a manual valve, and the second valve 13 is an automatic valve. Optionally, the automatic valve is a pneumatic valve or an electric valve. A filter 12 is provided between the first valve 11 and the second valve 13.

[0026] When the metering pipeline 10 needs to be closed for a long time, the first valve 11 can be used to manually close the metering pipeline 10. When it is closed / opened briefly, the first valve 11 is kept open and the switch of the metering pipeline 10 is controlled by the second valve 13. The filter 12 can be selected as a Y-type filter. The Y-type filter has the characteristics of advanced structure, small resistance, and convenient sewage discharge, and is particularly suitable for filtering solid impurities in liquid media.

[0027] Furthermore, the input end of the telescopic tube 20 is connected to the output end of the metering pipeline 10, the metering container 40 is connected to the output end of the telescopic tube 20, and the metering container 4 is used to weigh the medium input from the telescopic tube 20 into the metering container 40, and the amount of each medium entering the metering container 40 is controlled by weighing, so that the produced product has an accurate raw material ratio.

[0028] It should be understood that among the multiple metering pipelines 10, there are metering pipelines 10 in use and metering pipelines 10 in non-use. For the metering pipelines 10 in non-use, their disconnection state should be strictly controlled to prevent the dripping raw materials from entering the metering container 40 and causing pollution. Therefore, the blind plate 30 is introduced to block the input end of the telescopic tube 20. The blind plate 30 is configured to be connectable to the input end of the telescopic tube 20.

[0029] Furthermore, in order to facilitate the telescopic tube 20 to cut off the connection with the metering pipeline 10 and to facilitate reconnection of the metering pipeline 10, a connecting pipe 14 is provided at the output end of the metering pipeline 10, and the telescopic tube 20 can be connected to the connecting pipe 14. The telescopic tube 20 is configured to be able to slide along the axial direction relative to the metering container 40, and the connecting pipe 14 maintains a fixed distance from the metering container 40, so that when the telescopic tube 20 is compressed and slides up and down, the distance between the telescopic tube 20 and the connecting pipe 14 can be changed.

[0030] In this way, when the telescopic tube 20 is compressed to be separated from the connecting tube 14, the blind plate 30 can be connected to the input end of the telescopic tube 20 to disconnect the connecting tube 14 from the telescopic tube 20. When the metering pipeline 10 needs to be reconnected, the telescopic tube 20 is compressed, the blind plate 30 is removed, and the telescopic tube 20 is reset, so that the telescopic tube 20 is reconnected to the connecting tube 14.

[0031] Optionally, a mounting plate is connected above the metering container 40, and the connecting pipes 14 at the output ends of all metering pipelines 10 are fixed to the mounting plate. The mounting plate and the upper end surface of the metering container 40 are connected by a support rod, so that the mounting plate is supported and maintains a suitable distance from the metering container 40.

[0032] Combination Figure 1 As shown, the metering pipeline 10 on the left is in use, and the metering pipeline 10 on the right is in non-use. Therefore, the telescopic tube 20 below the metering pipeline 10 on the right is compressed to separate the telescopic tube 20 and the connecting pipe 14. Figure 2 As shown, the blind plate 30 is filled into the output end of the telescopic tube 20 , and the blind plate 30 completely blocks the inlet of the telescopic tube 20 , so that even if the liquid drips from the connecting tube 14 , it cannot enter the telescopic tube 20 to pollute the liquid raw material in the metering container 40 .

[0033] In an optional embodiment, if Figure 1 As shown, the connecting tube 14 is constructed as a boss-shaped tube structure, and the telescopic tube 20 includes an upper half and a lower half. The upper half of the telescopic tube 20 is constructed to be able to engage with the boss-shaped tube structure and to make the connecting tube 14 and the channels inside the telescopic tube 20 communicate with each other. The lower half of the telescopic tube 20 is constructed as a columnar shape and can slide relative to the measuring container 40.

[0034] In this way, the telescopic tube 20 can be displaced relative to the measuring container 40 along the axial direction, so that the top end of the telescopic tube 20 is connected to or separated from the connecting tube 14. When the top of the telescopic tube 20 and the lower end of the connecting tube 14 abut against each other, the liquid flowing out of the connecting tube 14 can enter the channel of the telescopic tube 20 and flow into the measuring container 40.

[0035] In a preferred embodiment, the telescopic tube 20 comprises an upper portion with a diameter greater than that of the lower portion, and a spring is sleeved on the lower portion of the telescopic tube 20 so that the telescopic tube 20 has a tendency to move toward the connecting tube 14 .

[0036] In this way, when no external force acts on the telescopic tube 20, the upper end of the telescopic tube 20 remains in contact with the lower end of the connecting tube 14. Only when the blind plate 30 needs to be filled between the telescopic tube 20 and the connecting tube 14, the telescopic tube 20 needs to be manually compressed downward until the blind plate 30 can be filled into the upper end of the telescopic tube 20.

[0037] In a specific embodiment, the diameter of the output end channel of the connecting tube 14 is A, and the blind plate 30 is constructed so that the diameter of the upper end surface is larger than A. When the blind plate 30 is connected to the input end of the telescopic tube 20, the upper end surface of the blind plate 30 fits with the lower end surface of the connecting tube 14.

[0038] In this way, the channel of the telescopic tube 20 can be completely covered by the blind plate 30 , and the liquid flowing out of the connecting tube 14 can be blocked by the blind plate 30 to avoid flowing into the telescopic tube 20 .

[0039] Preferably, the blind plate 30 is configured in a boss shape so that when the blind plate 30 is connected to the output end of the telescopic tube 20, it can be positioned circumferentially to avoid slipping and falling off.

[0040] In combination with the above embodiments, the utility model arranges a plurality of telescopic tubes corresponding to the distribution of the metering pipelines above the metering container. The telescopic tubes can be telescoped on the metering container. The metering pipelines that are not in use can adjust the corresponding telescopic tubes to a compressed state and fill in blind plates to form a blockage between the telescopic tubes and the metering pipelines, strictly limiting the leakage of raw materials from entering the metering container, so that the ratio of the raw materials is more accurate.

[0041] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A quick blind plate insertion device for metering pipelines in PVC film production, characterized in that: include: A plurality of metering pipelines (10), each metering pipeline (10) being used to transport a medium, and each metering pipeline (10) being provided with at least one valve for controlling the on and off of the metering pipeline (10); A plurality of telescopic tubes (20), the input ends of which are correspondingly connected to the output ends of the metering pipeline (10); A plurality of blind plates (30) configured to be connectable to the input end of the telescopic tube (20); a metering container (40), connected to the output end of the telescopic tube (20), and used for weighing the medium input from the telescopic tube (20) into the metering container (40); The output end of the metering pipeline (10) is provided with a connecting pipe (14), the telescopic pipe (20) is connected to the connecting pipe (14), the connecting pipe (14) and the metering container (40) maintain a fixed distance, and the telescopic pipe (20) can slide relative to the metering container (40) along its axial direction to change the distance between the connecting pipe (14); When the telescopic tube (20) is compressed to be separated from the connecting tube (14), the blind plate (30) can be connected to the input end of the telescopic tube (20) to disconnect the connecting tube (14) from the telescopic tube (20).

2. The quick blind plate insertion device for metering pipelines in PVC film production according to claim 1 is characterized in that: The connecting tube (14) is constructed as a boss-shaped tube structure, and the telescopic tube (20) comprises an upper half and a lower half. The upper half of the telescopic tube (20) is constructed to be able to engage with the boss-shaped tube structure and to allow the channels inside the connecting tube (14) and the telescopic tube (20) to communicate with each other, and the lower half of the telescopic tube (20) is constructed as a columnar structure and can slide relative to the measuring container (40).

3. The quick blind plate insertion device for metering pipelines in PVC film production according to claim 2 is characterized in that: The telescopic tube (20) comprises an upper portion with a diameter greater than that of a lower portion, and the lower portion of the telescopic tube (20) is sleeved with a spring so that the telescopic tube (20) has a tendency to move toward the connecting tube (14).

4. The quick blind plate insertion device for metering pipelines in PVC film production according to claim 1, characterized in that: The diameter of the output end channel of the connecting tube (14) is A, and the blind plate (30) is constructed so that the diameter of the upper end surface is larger than A. When the blind plate (30) is connected to the input end of the telescopic tube (20), the upper end surface of the blind plate (30) fits with the lower end surface of the connecting tube (14).

5. The quick blind plate insertion device for metering pipelines in PVC film production according to claim 4 is characterized in that: The blind plate (30) is configured in a boss shape.

6. The quick blind plate insertion device for metering pipelines in PVC film production according to claim 1, characterized in that: A mounting plate is connected above the metering container (40), and all the connecting pipes (14) at the output ends of the metering pipelines (10) are fixed to the mounting plate.

7. The quick blind plate insertion device for metering pipelines in PVC film production according to claim 1, characterized in that: The metering pipeline (10) is provided with a first valve (11) and a second valve (13), wherein the first valve (11) is a manual valve. The second valve (13) is an automatic valve, and a filter (12) is provided between the first valve (11) and the second valve (13).

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