CN114307907A - Latex solidification auxiliary device and using method thereof - Google Patents

Latex solidification auxiliary device and using method thereof Download PDF

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Publication number
CN114307907A
CN114307907A CN202111641584.7A CN202111641584A CN114307907A CN 114307907 A CN114307907 A CN 114307907A CN 202111641584 A CN202111641584 A CN 202111641584A CN 114307907 A CN114307907 A CN 114307907A
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China
Prior art keywords
latex
production
coagulant
roller
tool
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Pending
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CN202111641584.7A
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Chinese (zh)
Inventor
史云叶
王洪刚
易少挥
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Zhejiang Jiechuang Intelligent Technology Co ltd
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Zhejiang Jiechuang Intelligent Technology Co ltd
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Priority to CN202111641584.7A priority Critical patent/CN114307907A/en
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Abstract

The invention discloses a latex solidification auxiliary device and a using method thereof. The invention comprises a coagulating tank, wherein a mounting and driving device is arranged beside the coagulating tank, the mounting and driving device comprises a production tool arranged above the coagulating tank, the production tool comprises a three-head bracket, and three head ends of the three-head bracket are respectively connected with a gluing roller, a coagulant spray head and a brush roller. According to the invention, mechanical equipment replaces manual work to perform coagulant adding and gel forming work, so that the production process is clean and stable, the production efficiency is improved, and meanwhile, the quality of the coagulated colloid is prevented from being influenced by unstable factors of personnel production.

Description

Latex solidification auxiliary device and using method thereof
Technical Field
The invention relates to the technical field of rubber processing, in particular to a latex solidification auxiliary device and a using method thereof.
Background
The solidification of latex is one of the important links influencing the quality of natural rubber in the rubber preparation process. A small amount of coagulant is added into latex to generate demulsification, so that rubber particles are irreversibly connected and coagulated. In the prior production, firstly, the latex emulsion is injected into a coagulating tank, a coagulant is added according to a certain proportion, and the latex emulsion is stood for coagulation and then separated from the inner wall of the coagulating tank for rubber production by manually treading and pressing a coagulating block. The size of a coagulation tank is large generally, and the conventional manual production process is large in labor, long in time, low in production efficiency and low in yield due to the addition of a coagulant and a rubber production process.
Disclosure of Invention
The invention aims to provide a latex solidification assisting device and a using method thereof. According to the invention, the intelligent mechanical equipment replaces manual production, and one set of equipment can finish operations of coagulant addition, coagulation block gumming and coagulation tank cleaning, so that the efficiency is improved, and the manual work intensity is reduced.
The invention adopts the following technical scheme to realize the purpose of the invention:
a latex solidification auxiliary device and a using method thereof comprise a solidification groove, wherein a mounting and driving device is arranged beside the solidification groove, and the mounting and driving device comprises a production tool arranged above the solidification groove.
In the auxiliary device for latex solidification, the mounting and driving device comprises sliding rails arranged on the left side and the right side of the solidification groove, pulley blocks are arranged on the sliding rails, stand columns are arranged on the pulley blocks, mounting frames are arranged on the two stand columns, and production tools corresponding to the solidification groove below are movably arranged on the mounting frames.
In the auxiliary device for latex solidification, a first supporting beam is arranged on the mounting frame, a group of tool supports are rotatably connected to the first supporting beam, and a group of production tools are arranged on the tool supports.
In the auxiliary device for latex solidification, a second supporting beam is arranged on the mounting frame, a group of hydraulic telescopic cylinders are arranged on the second supporting beam, and the hydraulic telescopic cylinders are hinged with the tool support.
In the above-described latex solidification assisting apparatus, the hydraulic stretching cylinder is connected to a small-sized hydraulic station.
In the auxiliary device for latex solidification, the production tool comprises a three-head bracket, and three head ends of the three-head bracket are respectively connected with the glue-removing roller, the coagulant spray head and the brush roller.
In the latex solidification assisting device, a water spraying device is arranged on the brush roller.
In the auxiliary device for latex solidification, the rubber lifting roller is connected with the three-head bracket through the elastic reset device.
In the auxiliary device for latex solidification, an angle sensor is provided on the pillar.
In the above-described latex solidification assisting apparatus, the coagulant nozzle is connected to the coagulant agitation tank.
A method of using a latex clotting aid, comprising the steps of:
a. injecting the latex stock solution into a coagulating tank;
b. starting the latex solidification auxiliary device, switching a production tool on the tool support to a coagulant spray head through the action of a hydraulic telescopic cylinder, driving the mounting frame to move along with the sliding rail by the pulley block after the angle sensor detects that the coagulant spray head is switched in place, and spraying the coagulant into the latex stock solution by the coagulant spray head in a grading manner according to the process requirements in the moving process;
c. after the latex stock solution is statically solidified into blocks, a production tool on a tool support is switched to a glue lifting roller through the action of a hydraulic telescopic cylinder, the glue lifting roller presses on the solidification blocks, the height of the glue lifting roller is adaptively adjusted through an elastic resetting device, the proper pressure of the glue lifting roller on the solidification blocks is ensured during glue lifting, after an angle sensor detects that the glue lifting roller is switched in place, an installation frame is driven by a pulley block to move along with a sliding rail, the glue lifting roller rolls the solidification blocks, and the solidification blocks are separated from the inner wall of a solidification groove;
d. after the glue is produced, the production tool on the tool support is switched to the brush roller through the action of the hydraulic telescopic cylinder, the angle sensor detects that the production tool is switched in place, the mounting frame is driven by the pulley block to move along with the sliding rail, and in the moving process, the water spraying device on the brush roller continuously sprays water and is matched with the self-rotation of the brush roller to clean the inner wall of the coagulating tank;
e. and after the cleaning is finished, the latex solidification auxiliary device returns to the initial position to wait for the next work production.
Advantageous effects
1. Compared with the prior art, the mechanical equipment replaces manual work to perform coagulant adding and glue forming work, the production process is clean and stable, the production efficiency is improved, and meanwhile unstable factors of personnel production are prevented from influencing the quality of the coagulated block colloid.
2. The invention carries out multiple times of coagulant addition through the coagulant spray head according to the preset time setting in a constant proportion, is more stable and reliable than the manual addition process, and has better production quality of the coagulant block.
3. The production tools in the latex solidification process comprise tools for adding a coagulant, coagulating block gumming, cleaning a coagulation tank and the like. One set of equipment can replace the manual work to carry out the work of three production processes, has reduced the manpower, has reduced manufacturing cost.
4. The invention uses the angle sensor to switch and detect the tool. During processing, the angle can be adjusted according to the actual production condition, the tool in-place condition is stable, and the production is reliable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the area A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of the region B in FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of the region C in FIG. 1;
FIG. 5 is a side view of the present invention;
FIG. 6 is an enlarged schematic view of the rectangular area of FIG. 5;
FIG. 7 is a second schematic structural view of the present invention;
FIG. 8 is a third schematic structural view of the present invention;
FIG. 9 is a side view of the present invention illustrating a second embodiment;
FIG. 10 is a schematic view of the front view of the present invention;
FIG. 11 is a schematic top view of the present invention;
fig. 12 is a structural view in the bottom view of the present invention.
The labels in the figures are: 1-a coagulation tank; 2-a slide rail; 3, pulley block; 4-upright post; 5-mounting a frame; 6-tool holder; 7-a hydraulic telescopic cylinder; 8-an angle sensor; 9-a first corbel; 10-a production tool; 11-a glue-removing roller; 12-coagulant spray head; 13-a brush roller; 14-a second corbel; 15-a small hydraulic station; 16-a coagulant agitator tank; 17-three-head support, 18-bridge frame and 19-drag chain.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Examples are given. A latex solidification auxiliary device comprises a solidification groove 1, wherein an installation and driving device is arranged beside the solidification groove 1, and the installation and driving device comprises a production tool 10 arranged above the solidification groove 1. The mounting and driving means mounts the production tool 10 and can drive the production tool 10 to move back and forth above the coagulation tank 1.
The installation and driving device comprises sliding rails 2 arranged on the left side and the right side of the coagulating basin 1, pulley blocks 3 are arranged on the sliding rails 2, stand columns 4 are arranged on the pulley blocks 3, mounting frames 5 are arranged on the two stand columns 4, and production tools 10 corresponding to the coagulating basins 1 below are movably arranged on the mounting frames 5.
Be equipped with first roof beam 9 on the mounting bracket 5, rotate on the first roof beam 9 and be connected with a set of tool holder 6, be equipped with a set of production tool 10 on the tool holder 6.
And a second supporting beam 14 is arranged on the mounting frame 5, a group of hydraulic telescopic cylinders 7 are arranged on the second supporting beam 14, and the hydraulic telescopic cylinders 7 are hinged with the tool support 6.
The production tool 10 comprises a three-head bracket 17, and three head ends of the three-head bracket 17 are respectively connected with a glue-removing roller 11, a coagulant spray head 12 and a brush roller 13.
And a water spraying device is arranged on the brush roller 13. The water spray is necessarily connected to a water pipe, which may also be provided in the tow chain 18.
The glue-removing roller 11 is connected with the three-head bracket 17 through an elastic resetting device. The upright post 4 of the elastic reset device is provided with an angle sensor 8.
The hydraulic telescopic cylinder 7 is connected with a small hydraulic station 15.
The coagulant spray head 12 is connected with a coagulant stirring tank 16.
When the technology is implemented, more specifically, as shown in fig. 1 to 12, the technology includes a solidification trough 1, slide rails 2 are installed on two sides of the solidification trough 1, pulley blocks 3 are installed on the slide rails 2 on the two sides, a stand column 4 is vertically installed on the pulley blocks 3, the stand column 4 can freely move on the slide rails 2 along with the pulley blocks 3, and an installation frame 5 is installed on the two stand columns 4 across the solidification trough 1 and is fixed. Two supporting beams parallel to the mounting frame 5 are arranged in the mounting frame 5, wherein 4 groups of tool supports 6 using the supporting beams as rotating shafts are arranged on the first supporting beam 9, 4 sets of production tools can be arranged on each group of tool supports 6, and each set of production tool comprises a glue-removing roller 11, a coagulant spray head 12 and a brush roller barrel 13. Each group of tool supports 6 is provided with a hydraulic telescopic cylinder 7, one end of each hydraulic telescopic cylinder 7 is hinged to a second supporting beam 14, the other end of each hydraulic telescopic cylinder 7 is hinged to the corresponding tool support 6, the hydraulic telescopic cylinders 7 serve as driving devices, the tool supports 6 can rotate by taking the first supporting beams 9 as rotating shafts, angle sensors 8 are mounted on the stand columns 4 on one sides, the tool switching condition can be detected, and switching among three tools can be carried out according to production conditions.
The mechanism equipment arranged on the mounting rack 5, a power line and a signal line which are connected with a power source and a control system are integrated and placed in a drag chain, the drag chain is fixedly placed on a bridge frame 18 beside the coagulating tank 1, and all cables can move along with the mounting rack 5 without damaging the cables; a plurality of pairs of pulleys are arranged in the pulley block 3 and matched with the slide rail 2, and the pulley block 3 can provide power to move along the direction of the slide rail 2 through a motor and has high load capacity; the power of the hydraulic telescopic cylinder 7 is from a small hydraulic station arranged beside the coagulation tank 1; the coagulating liquid used by the coagulating agent nozzle 12 is from a coagulating agent stirring tank 16 arranged beside the coagulating tank 1, and the stirring tank continuously stirs the solution in production to make the concentration of the coagulating agent in the tank uniform.
Wherein, the power source of the hydraulic telescopic cylinder 7 is provided by a small hydraulic station 15 arranged beside the coagulating tank 1. The detection of the tool switching in place is completed by the angle sensor 8, and the angle of the tool can be adjusted according to the liquid level condition of the latex in the coagulating tank 1 so as to work at a proper position.
4 groups of tool supports 6 are arranged on the supporting beam, 4 sets of tools are arranged on each group of tool supports 6, and 16 sets of tools are arranged in total and correspond to 4 groove positions in the coagulating groove 1. Each tool has three tools, including: a coagulant nozzle 12, which is used for adding coagulant in multiple times according to the process requirements after latex is injected into the coagulating tank 1 to assist the latex in coagulating and curing; the glue lifting roller 11 is used for switching the tool support 6 to a glue lifting mode after the latex is solidified, adjusting the angle according to the surface height of the latex, and rolling the solidified colloid to separate the colloid from the inner wall of the coagulating tank 1, so that the glue lifting is facilitated; the hairbrush roller 13 is provided with a water spraying device on the hairbrush roller 13, the hairbrush roller 13 can be matched with and scour the coagulating tank 1, after glue is generated, the tool support 6 is switched to a cleaning mode, the hairbrush roller 13 sinks into the coagulating tank 1, the hairbrush roller 13 is matched with the mounting frame 5 in a rotating mode to move back and forth in a straight line, and residue cleaning is carried out on the inner wall of the coagulating tank 1.
A coagulant stirring tank 16 is arranged beside the coagulating tank 1 and used for supplying raw materials for a coagulant spray head 12 tool through pipeline conveying. The coagulant spray head 12 sprays acid for many times in the latex coagulation process to ensure the curing time of the coagulum and the plasticity retention rate of the rubber, and the spraying amount and the spraying times can be set in a system in a self-defined way according to the process requirements.
The elastic reset device can adaptively adjust the height of the glue lifting roller 11 according to the surface position of the glue emulsion in the coagulating tank 1, so that the pressure of the glue lifting roller 11 on the coagulated glue is proper during glue lifting, and the coagulated glue is not damaged during the glue lifting process.
The use method of the latex solidification assisting device comprises the following steps:
a. injecting the latex stock solution into a coagulating tank 1;
b. starting the latex solidification auxiliary device, switching the production tool 10 on the tool support 6 to the coagulant spray head 12 through the action of the hydraulic telescopic cylinder 7, driving the mounting frame 5 to move along with the slide rail 2 by the pulley block 3 after the angle sensor 8 detects that the coagulant spray head 12 is switched in place, and spraying the coagulant into the latex stock solution by the coagulant spray head 12 in times according to the process requirements in the moving process; in the starting process of the equipment, the coagulant stirring tank 16 continuously stirs to ensure the uniformity of the solution;
c. after the latex stock solution is statically solidified into blocks, the production tool 10 on the tool support 6 is switched to the rubber lifting roller 11 through the action of the hydraulic telescopic cylinder 7, the rubber lifting roller 11 is pressed on the solidified blocks, the height of the rubber lifting roller 11 is adaptively adjusted through the elastic resetting device, the proper pressure of the rubber lifting roller 11 on the solidified blocks during rubber lifting is ensured, the angle sensor 8 detects that the rubber lifting roller 11 is switched in place, the mounting frame 5 is driven by the pulley block 3 to move along with the slide rail 2, the rubber lifting roller 11 rolls the solidified blocks, the solidified blocks are separated from the inner wall of the solidification groove 1, and the subsequent rubber lifting is facilitated;
d. after the glue is removed, the production tool 10 on the tool support 6 is switched to the brush roller barrel 13 through the action of the hydraulic telescopic cylinder 7, after the angle sensor 8 detects that the production tool 10 is switched in place, the mounting frame 5 is driven by the pulley block 3 to move along with the sliding rail 2, and in the moving process, a water spraying device on the brush roller barrel 13 continuously sprays water and is matched with the self-rotation of the brush roller barrel 13 to clean the inner wall of the coagulating tank 1;
e. and after the cleaning is finished, the latex solidification auxiliary device returns to the initial position to wait for the next work production.
It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A latex solidification assisting device is characterized in that: the device comprises a coagulating tank (1), wherein an installation and driving device is arranged beside the coagulating tank (1), and the installation and driving device comprises a production tool (10) arranged above the coagulating tank (1).
2. The latex coagulation aid according to claim 1, wherein: the installation and driving device comprises sliding rails (2) arranged on the left side and the right side of the coagulating basin (1), a pulley block (3) is arranged on the sliding rails (2), stand columns (4) are arranged on the pulley block (3), mounting frames (5) are arranged on the two stand columns (4), and production tools (10) corresponding to the coagulating basin (1) below are movably arranged on the mounting frames (5).
3. The latex coagulation aid of claim 2, wherein: be equipped with first strutbeam (9) on mounting bracket (5), rotate on first strutbeam (9) and be connected with a set of instrument support (6), be equipped with a set of production instrument (10) on instrument support (6).
4. The latex coagulation aid of claim 3, wherein: and a second supporting beam (14) is arranged on the mounting frame (5), a group of hydraulic telescopic cylinders (7) are arranged on the second supporting beam (14), and the hydraulic telescopic cylinders (7) are hinged with the tool support (6).
5. The latex coagulation aid according to claim 1, wherein: the production tool (10) comprises a three-head support (17), and three head ends of the three-head support (17) are respectively connected with a gluing roller (11), a coagulant spray head (12) and a brush roller (13).
6. The latex coagulation aid of claim 5, wherein: and a water spraying device is arranged on the brush roller (13).
7. The latex coagulation aid of claim 5, wherein: the glue-removing roller (11) is connected with the three-head bracket (17) through an elastic reset device.
8. The latex coagulation aid of claim 2, wherein: and an angle sensor (8) is arranged on the upright post (4).
9. The latex coagulation aid of claim 5, wherein: the coagulant spray head (12) is connected with a coagulant stirring tank (16).
10. A use method of the latex solidification assisting device is characterized in that: the method comprises the following steps:
a. injecting the latex stock solution into a coagulating tank (1);
b. starting a latex solidification auxiliary device, switching a production tool (10) on a tool support (6) to a coagulant spray head (12) through the action of a hydraulic telescopic cylinder (7), driving an installation frame (5) to move along with a sliding rail (2) by a pulley block (3) after an angle sensor (8) detects that the coagulant spray head (12) is switched in place, and spraying the coagulant into a latex stock solution by the coagulant spray head (12) in times according to process requirements in the moving process;
c. after the latex stock solution is statically solidified into blocks, a production tool (10) on a tool support (6) is switched to a glue lifting roller (11) through the action of a hydraulic telescopic cylinder (7), the glue lifting roller (11) is pressed on the blocks, the height of the glue lifting roller (11) is adaptively adjusted through an elastic resetting device, the proper pressure of the glue lifting roller (11) on the blocks is ensured during glue lifting, after an angle sensor (8) detects that the glue lifting roller (11) is switched in place, an installation frame (5) is driven by a pulley block (3) to move along with a sliding rail (2), the glue lifting roller (11) rolls the blocks, and the blocks are separated from the inner wall of a solidification groove (1);
d. after the glue is removed, the production tool (10) on the tool support (6) is switched to the brush roller (13) through the action of the hydraulic telescopic cylinder (7), the angle sensor (8) detects that the production tool (10) is switched in place, the mounting frame (5) is driven by the pulley block (3) to move along with the slide rail (2), and in the moving process, a water spraying device on the brush roller (13) continuously sprays water and is matched with the self-rotation of the brush roller (13) to clean the inner wall of the coagulating tank (1);
e. and after the cleaning is finished, the latex solidification auxiliary device returns to the initial position to wait for the next work production.
CN202111641584.7A 2021-12-29 2021-12-29 Latex solidification auxiliary device and using method thereof Pending CN114307907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111641584.7A CN114307907A (en) 2021-12-29 2021-12-29 Latex solidification auxiliary device and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111641584.7A CN114307907A (en) 2021-12-29 2021-12-29 Latex solidification auxiliary device and using method thereof

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CN114307907A true CN114307907A (en) 2022-04-12

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CN202111641584.7A Pending CN114307907A (en) 2021-12-29 2021-12-29 Latex solidification auxiliary device and using method thereof

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102504051A (en) * 2011-11-10 2012-06-20 中国热带农业科学院农产品加工研究所 Method for solidifying nature rubber fresh latex through double parallel-flow solidification liquid adding
CN110280552A (en) * 2019-06-27 2019-09-27 海南中橡科技有限公司 Natural rubber coagulating basin sprays cleaning device automatically
CN210100490U (en) * 2019-04-23 2020-02-21 河北泰能鸿森医疗科技有限公司 Self-adjusting disposable glove crimping device
CN111910440A (en) * 2020-08-06 2020-11-10 安丹达工业技术(上海)有限公司 Formula for cracking foam coating and fabric with cracking foam coating
CN212560066U (en) * 2020-06-23 2021-02-19 安徽顺驰电缆有限公司 Device convenient for rubber to solidify quickly
JP2021036008A (en) * 2019-08-30 2021-03-04 日本ゼオン株式会社 Production method of synthetic rubber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102504051A (en) * 2011-11-10 2012-06-20 中国热带农业科学院农产品加工研究所 Method for solidifying nature rubber fresh latex through double parallel-flow solidification liquid adding
CN210100490U (en) * 2019-04-23 2020-02-21 河北泰能鸿森医疗科技有限公司 Self-adjusting disposable glove crimping device
CN110280552A (en) * 2019-06-27 2019-09-27 海南中橡科技有限公司 Natural rubber coagulating basin sprays cleaning device automatically
JP2021036008A (en) * 2019-08-30 2021-03-04 日本ゼオン株式会社 Production method of synthetic rubber
CN212560066U (en) * 2020-06-23 2021-02-19 安徽顺驰电缆有限公司 Device convenient for rubber to solidify quickly
CN111910440A (en) * 2020-08-06 2020-11-10 安丹达工业技术(上海)有限公司 Formula for cracking foam coating and fabric with cracking foam coating

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