Production process of cylindrical rubber block based on natural rubber

Abstract

The invention discloses a production process of a cylindrical rubber block based on natural rubber, and relates to the technical field of natural rubber production and processing. The method comprises the steps of S1, latex collection and mixing, S2, filtration and centrifugation, S3, acid preparation, mixing and solidification, S4, rubber block rotary cutting, S5, dehydration and segmentation, S6, drying and S7, sheet discharging and packaging. In the invention, compared with the same process of the conventional smoked sheet rubber, through the processes of S1 to S7, by applying automatic upgrading, the per capita labor productivity can be improved by 100%, the labor cost is reduced by 50%, the price of a natural rubber product is reduced, and by integrating a plurality of production sections into an integrated process, the construction land occupation can be saved by more than 30%; the influence of external factors on film forming is reduced through automatic linkage of teams and groups, the yield of products can be increased, the appearance quality can be improved, the waste film rate of the films is smaller than 5%, and the half-raw film rate is smaller than 1%.

Description

Technical Field

[0001] The invention relates to the technical field of natural rubber production and processing, in particular to a production process based on natural rubber cylindrical rubber blocks. Background Art

[0002] From the current production process of tobacco sheet glue, it is limited by the process and equipment, and most of them are manual operations. Even the Indonesian and Thai tobacco sheet production lines with larger scale and more mature systems generally have problems such as low degree of automation and no application of intelligent equipment.

[0003] For the production of tobacco sheet glue, the most labor-intensive sections are slicing, pressing and hanging. The existing inserting and solidifying or manual tearing of sheets require a lot of manpower. When operating a five-in-one (or six-in-one) sheet press, manual assistance is required from feeding to sheet pressing and forming. The appearance consistency of the film after forming is easily affected by factors such as roller distance, sheet thickness, and feeding direction. At the same time, hanging after the sheet is formed still requires manual participation throughout the process.

[0004] The main production process of the existing insert solidification process is:

[0005] 1. Latex entering the factory: Rubber farmers harvest fresh latex from rubber trees and transport it to the rubber factory;

[0006] 2. Dilution in the tank: After filtering, the latex is injected into the insert coagulation tank and diluted with water at a uniform concentration;

[0007] 3. Add acid and mix: Prepare acid according to the dilution concentration of latex, add it into the coagulation tank and stir evenly;

[0008] 4. Insertion solidification: Use the insert plate to insert the latex in the slot to divide it into square films of uniform thickness, and let it stand until it solidifies completely;

[0009] 5. Sheet pressing and hanging: Take the solidified film out of the tank, use multi-stage continuous sheet pressing equipment to dehydrate it, and then hang the dehydrated film with uniform thickness on the drying car;

[0010] 6. Smoke drying: After the film on the drying car is air-dried to no water droplets, it is pushed into the drying room to mature through the heat and smoke generated by burning firewood;

[0011] 7. Film packaging: The matured film is taken from the drying car, and after metal detection and cutting off the unripe parts, it is compressed and bagged using a baler;

[0012] This production process can adjust the process parameters of the film in a more convenient way by adjusting the values ​​of the insert spacing, injection height, etc., and also ensure that customers can quickly implement adjustments to the product appearance when carrying out mass customized production;

[0013] However, the insert coagulation process has high requirements on the quality of latex. If the latex has a low dry content due to rain, long storage time, irregular tapping and other factors, white water, broken pieces, irregular appearance and other problems will appear during the insert coagulation process. At the same time, due to the process characteristics of insert coagulation, the demand for labor is much higher than the general standard rubber production process, and the production efficiency is low. As a result, even if the smoked sheet rubber has a higher price than other natural rubber products, the economic benefits it generates are far less than the standard rubber with fast and large quantities.

[0014] In view of the above problems, the inventors proposed a production process based on natural rubber cylindrical rubber blocks to solve the above problems. Summary of the invention

[0015] In order to solve the above problems, the object of the present invention is to provide a production process based on natural rubber cylindrical rubber blocks.

[0016] In order to solve the above technical problems, the present invention adopts the following technical solution: a production process based on natural rubber cylindrical rubber blocks, comprising the following steps:

[0017] S1. Latex collection and mixing

[0018] Collect latex from rubber trees and pour the collected latex into a large mixing tank in the workshop, where it is stirred and diluted;

[0019] S2, filtration and centrifugation

[0020] After filtering through a screen and centrifuging in a centrifuge, the latex is respectively injected into cylindrical coagulation containers with the same appearance and size;

[0021] S3, acid mixing and solidification

[0022] According to the dilution concentration of latex, prepare an equal amount of acid and add it to each coagulation barrel. Stir and mix evenly, skim off the foam, and let it stand until the coagulation is complete.

[0023] S4, Rubber Block Peeling

[0024] The solidified rubber block is unloaded into the bubble pool in front of the rotary cutting device, and the cylindrical latex is cut into long strips of uniform thickness by inserting the connecting device into the central cylindrical hollow of the rubber block in a rotary cutting mode to obtain a long rubber block;

[0025] S5. Dehydration and segmentation

[0026] The long rubber block cut in S4 is directly sent to the subsequent rubber crepe equipment for dehydration, and after passing through the rubber crepe equipment of the next stage, it is dehydrated and shaped. At this time, the slicing device at the end of the rubber crepe equipment is used to divide the long rubber block into equal parts;

[0027] S6. Drying

[0028] The cut films are directly hung on bamboo poles and uniformly placed on drying carts. After drying in the sun, they can be sent to smoke drying.

[0029] S7, film packaging

[0030] After the dried film is taken out, it can be compacted and packaged after metal detection and performance index inspection.

[0031] Preferably, in S2, the sieve has a mesh size of 40 to 60.

[0032] Preferably, in S5, the grade of the rubber crepe equipment is 5-6.

[0033] Preferably, in S6, the drying time is 20 to 30 hours.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. In the present invention, by using the processes of S1-S7, compared with the same process of the existing traditional smoked sheet rubber, by applying automation upgrade, the per capita labor productivity can be increased by 100%, the labor cost can be reduced by 50%, and the price of natural rubber products can be reduced;

[0036] 2. In the present invention, by integrating multiple production sections into an integrated process, it is possible to save more than 30% of the construction land, thereby reducing the investment cost of the enterprise;

[0037] 3. In the present invention, the influence of external factors on film forming is reduced by using automated linkage teams, so that the product yield rate and appearance quality can be improved, the film waste rate is less than 5%, and the raw glue is less than 1%. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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.

[0039] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0040] 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.

[0041] Example: Figure 1 As shown, the present invention provides a production process based on natural rubber cylindrical rubber blocks, comprising the following steps:

[0042] S1. Latex collection and mixing

[0043] Collect latex from rubber trees and pour the collected latex into a large mixing tank in the workshop, where it is stirred and diluted;

[0044] S2, filtration and centrifugation

[0045] After filtering through a 40-mesh screen and centrifuging in a centrifuge, the latex was respectively injected into cylindrical coagulation containers of uniform appearance and size;

[0046] S3, acid mixing and solidification

[0047] According to the dilution concentration of latex, prepare an equal amount of acid and add it to each coagulation barrel. Stir and mix evenly, skim off the foam, and let it stand until the coagulation is complete.

[0048] S4, Rubber Block Peeling

[0049] The solidified rubber block is unloaded into the bubble pool in front of the rotary cutting device, and the cylindrical latex is cut into long strips of uniform thickness by inserting the connecting device into the central cylindrical hollow of the rubber block in a rotary cutting mode to obtain a long rubber block;

[0050] S5. Dehydration and segmentation

[0051] The long rubber block cut in S4 is directly sent to the subsequent 5-stage rubber crepe equipment for dehydration. After passing through the 5-stage rubber crepe equipment, it is dehydrated and shaped. At this time, the slicing device at the end of the rubber crepe equipment is used to divide the long rubber strip into equal parts;

[0052] S6. Drying

[0053] The cut films are directly hung on bamboo poles and uniformly placed on drying vehicles. After 24 hours of drying, they can be sent to smoke drying.

[0054] S7, film packaging

[0055] After the dried film is taken out, it can be compacted and packaged after metal detection and performance index inspection.

[0056] Embodiment 2: A production process based on natural rubber cylindrical rubber block, comprising the following steps:

[0057] S1. Latex collection and mixing

[0058] Collect latex from rubber trees and pour the collected latex into a large mixing tank in the workshop, where it is stirred and diluted;

[0059] S2, filtration and centrifugation

[0060] After filtering through a 60-mesh screen and centrifuging in a centrifuge, the latex was respectively poured into cylindrical coagulation containers of uniform appearance and size;

[0061] S3, acid mixing and solidification

[0062] According to the dilution concentration of latex, prepare an equal amount of acid and add it to each coagulation barrel. Stir and mix evenly, skim off the foam, and let it stand until the coagulation is complete.

[0063] S4, Rubber Block Peeling

[0064] The solidified rubber block is unloaded into the bubble pool in front of the rotary cutting device, and the cylindrical latex is cut into long strips of uniform thickness by inserting the connecting device into the central cylindrical hollow of the rubber block in a rotary cutting mode to obtain a long rubber block;

[0065] S5. Dehydration and segmentation

[0066] The long rubber block cut in S4 is directly sent to the subsequent 6-stage rubber crepe equipment for dehydration. After passing through the 6-stage rubber crepe equipment, it is dehydrated and shaped. At this time, the slicing device at the end of the rubber crepe equipment is used to divide the long rubber strip into equal parts;

[0067] S6. Drying

[0068] The cut films are directly hung on bamboo poles and uniformly placed on drying vehicles. After 20 hours of drying, they can be sent to smoke drying.

[0069] S7,

[0070] After the dried film is taken out, it can be compacted and packaged after metal detection and performance index inspection.

[0071] Embodiment 3: A production process based on natural rubber cylindrical rubber block, comprising the following steps:

[0072] S1. Latex collection and mixing

[0073] Collect latex from rubber trees and pour the collected latex into a large mixing tank in the workshop, where it is stirred and diluted;

[0074] S2, filtration and centrifugation

[0075] After filtering through a 50-mesh screen and centrifuging in a centrifuge, the latex was respectively injected into cylindrical coagulation containers of uniform appearance and size;

[0076] S3, acid mixing and solidification

[0077] According to the dilution concentration of latex, prepare an equal amount of acid and add it to each coagulation barrel. Stir and mix evenly, skim off the foam, and let it stand until the coagulation is complete.

[0078] S4, Rubber Block Peeling

[0079] The solidified rubber block is unloaded into the bubble pool in front of the rotary cutting device, and the cylindrical latex is cut into long strips of uniform thickness by inserting the connecting device into the central cylindrical hollow of the rubber block in a rotary cutting mode to obtain a long rubber block;

[0080] S5. Dehydration and segmentation

[0081] The long rubber block cut in S4 is directly sent to the subsequent 6-stage rubber crepe equipment for dehydration. After passing through the 6-stage rubber crepe equipment, it is dehydrated and shaped. At this time, the slicing device at the end of the rubber crepe equipment is used to divide the long rubber strip into equal parts;

[0082] S6. Drying

[0083] The cut films are directly hung on bamboo poles and uniformly placed on drying vehicles. After 28 hours of drying, they can be sent to smoke drying.

[0084] S7, film packaging

[0085] After the dried film is taken out, it can be compacted and packaged after metal detection and performance index inspection.

[0086] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A production process based on natural rubber cylindrical rubber blocks, characterized in that: The following steps are involved: S1. Latex collection and mixing Collect latex from rubber trees and pour the collected latex into a large mixing tank in the workshop, where it is stirred and diluted; S2, filtration and centrifugation After filtering through a screen and centrifuging in a centrifuge, the latex is respectively injected into cylindrical coagulation containers with the same appearance and size; S3, acid mixing and solidification According to the dilution concentration of latex, prepare an equal amount of acid and add it to each coagulation barrel. Stir and mix evenly, skim off the foam, and let it stand until the coagulation is complete. S4, Rubber Block Peeling The solidified rubber block is unloaded into the bubble pool in front of the rotary cutting device, and the cylindrical latex is cut into long strips of uniform thickness by inserting the connecting device into the central cylindrical hollow of the rubber block in a rotary cutting mode to obtain a long rubber block; S5. Dehydration and segmentation The long rubber block cut in S4 is directly sent to the subsequent rubber crepe equipment for dehydration, and after passing through the rubber crepe equipment of the next stage, it is dehydrated and shaped. At this time, the slicing device at the end of the rubber crepe equipment is used to divide the long rubber block into equal parts; S6. Drying The cut films are directly hung on bamboo poles and uniformly placed on drying carts. After drying in the sun, they can be sent to smoke drying. S7, film packaging After the dried film is taken out, it can be compacted and packaged after metal detection and performance index inspection.

2. A process for producing cylindrical natural rubber blocks according to claim 1, characterized in that: In S2, the sieve has a mesh size of 40 to 60.

3. A process for producing cylindrical natural rubber blocks as claimed in claim 1, characterized in that: In S5, the grade of the rubber crepe sheet equipment is 5-6.

4. A process for producing cylindrical natural rubber blocks as claimed in claim 1, characterized in that: In S6, the drying time is 20 to 30 hours.

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