Anti-blocking conveying structure for polyurethane sole stock solution filling

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By designing an anti-blocking conveying structure including mica electric heating plate, agitator motor and scraper, the problems of uneven heating and residual liquid during the filling of polyurethane sole stock solution are solved, and the stability and uniformity of heating are achieved. Improved discharge effect.

CN222474615UActive Publication Date: 2025-02-14HUADA CHEM GRP CO LTD

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Patent Information

Application Number: CN202421197500.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-29
Publication Date: 2025-02-14
Estimated Expiration: 2034-05-29

AI Technical Summary

Technical Problem

When used, the existing conveying structure for filling the raw liquid of polyurethane sole is poorly fluidized due to the poor fluid of the raw liquid of the polyurethane sole, which leads to uneven heating, affecting the production quality, and the raw liquid is easily retained in the conveying pipeline, affecting the use of the pipeline.

Method used

An anti-blocking conveying structure including a conveying tube, a mica electric heating plate and a scraper is designed. The conveyor tube is heated and maintained through the mica electric heating plate and high-temperature insulation sleeve to improve heating stability; the raw liquid is stirred by a stirring motor and mixing block to improve heating uniformity; the scraper block is driven in the conveyor tube through an electric telescopic rod Rotate and scrape off the sticky stock solution to avoid residue.

Benefits of technology

The stability and uniformity of heating are achieved, the impact of uneven heating on production quality is reduced, and the residue of raw liquid in the conveying pipe is effectively avoided, thereby improving the discharge effect.

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Abstract

The utility model discloses an anti-blocking conveying structure for polyurethane sole stock solution filling, and relates to the technical field of polyurethane stock solution production, the anti-blocking conveying structure comprises a conveying assembly arranged below a reaction kettle body, the conveying assembly comprises a conveying pipe, the front position of the top end of the conveying pipe is connected with a drainage valve of the reaction kettle body, and the top end of the conveying pipe is connected with a drainage valve of the reaction kettle body. The end, away from the reaction kettle body, of the conveying pipe is connected with a filling machine body, and the front end of the conveying pipe is provided with a conveying assembly, so that the heating stability and the heating uniformity are improved, the influence of non-uniform heating on the production quality is reduced, and more stock solution residues are prevented from being adhered to the interior of the conveying pipe; the problems that when a traditional conveying structure for polyurethane shoe sole stock solution filling is used and a small part of polyurethane shoe sole stock solution is conveyed, the follow-up production quality can be affected due to the fact that the temperature is kept at the high temperature for a long time, a large amount of stock solution can be left in a pipeline, and use of the pipeline is easily affected are solved.

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Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane stock solution production, in particular to an anti-blocking conveying structure for filling polyurethane sole stock solution. Background Art

[0002] Polyurethane is a polymer with repeating structural units of urethane segments made by the reaction of isocyanate and polyol. Compared with ordinary rubber soles, polyurethane soles have the characteristics of light weight and good wear resistance. When filling the polyurethane stock solution, a conveying device is required to transport it from the reactor to the filling equipment;

[0003] When the existing polyurethane sole stock solution is used, the conveying structure for filling the polyurethane sole stock solution has poor fluidity at room temperature due to its high viscosity. The method of increasing the temperature to reduce the viscosity is usually used to achieve the effect of preventing the conveying from being blocked. Steam is usually used for auxiliary heating during heating, and the temperature is difficult to control. The heating uniformity is poor. When a small amount of polyurethane sole stock solution is conveyed, it is kept at a high temperature for a long time, which will affect the subsequent production quality. After the polyurethane sole stock solution is conveyed through a pipeline, a large amount of stock solution may remain in the pipeline, which is easy to affect the use of the pipeline after long-term use. Utility Model Content

[0004] The main purpose of the utility model is to provide an anti-blocking conveying structure for filling polyurethane sole stock liquid, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A blocking-proof conveying structure for filling polyurethane sole stock liquid comprises a conveying assembly arranged below a reactor body, the conveying assembly comprises a conveying pipe, and the top front position of the conveying pipe is connected to a drain valve of the reactor body;

[0007] The end of the conveying pipe away from the reactor body is connected to the filling machine body, the front end of the conveying pipe is installed with a fixed plate through a connecting bolt, a turntable is rotatably installed through the front and rear ends of the fixed plate, and a sealing strip is provided at the connection between the fixed plate and the turntable, the front end of the turntable is installed with an electric telescopic rod through a mounting rod, and the rear end of the turntable is installed with a fixing rod through a fixing bolt, a mounting groove is provided inside the fixing rod, and a linkage mother rod is movably installed in the mounting groove, an adjustment groove is provided at the center position of the linkage mother rod, and a number of linkage sub-rods are rotatably installed in the adjusting groove, a number of the linkage sub-rods are movably connected to a mixing block on a side away from the linkage mother rod, and two mixing blocks are connected to scraping blocks on a side away from the linkage sub-rods through a number of mounting bolts.

[0008] As a further solution of the utility model, a plurality of the mounting bolts are arranged at equal distances on the scraper block, and the scraper block is detachably connected to the mixing block via the mounting bolts.

[0009] As a further solution of the utility model, the push rod end of the electric telescopic rod passes through the front and rear ends of the turntable, and a sealing ring is provided at the connection between the push rod of the electric telescopic rod and the turntable, the push rod of the electric telescopic rod matches the mounting groove of the fixed rod, the push rod of the electric telescopic rod extends into the mounting groove, and the push rod is connected to the linkage mother rod through a butt bolt.

[0010] As a further solution of the utility model, the outer ring of the conveying pipe is provided with a mica electric heating plate, and the outer ring sleeve of the mica electric heating plate is provided with a high-temperature resistant insulation sleeve.

[0011] As a further solution of the utility model, a mounting frame is fixedly connected to one side of the turntable, and a stirring motor is installed at the front end of the mounting frame. The driving shaft of the stirring motor is transmission-connected to the turntable through a transmission wheel set.

[0012] As a further solution of the utility model, the two scraping blocks are tapered on one side away from the fixed rod, and the outer side of the scraping blocks matches the inner side of the conveying pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model sets a conveying component to cooperate with the reactor body. When the polyurethane stock solution is filled, the conveying pipe is heated and insulated by the high-temperature resistant insulation sleeve and the mica electric heating plate, which is convenient for improving the heating stability. At the same time, the conveying process can stir the stock solution by rotating the mixing block in the conveying pipe, thereby improving the heating uniformity and reducing the influence of uneven heating on the production quality.

[0015] A transmission wheel group, a fixed rod, a linkage sub-rod, a linkage mother rod, a stirring motor and a scraper block are arranged, and the scraper block is driven to unfold in the conveying pipe by extending the electric telescopic rod push rod. Then, the scraper block is rotated in contact with the inner wall of the conveying pipe to scrape the polyurethane sole stock liquid adhered in the conveying pipe, so that the adhered stock liquid can be scraped off. At the same time, the scraper block rotates at a high speed, and the scraped stock liquid and the adhered stock liquid can be thrown off, so that more stock liquid residues can be avoided from adhering to the conveying pipe, which is convenient for improving the discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging conveying structure for filling polyurethane sole stock liquid according to the utility model;

[0017] Figure 2 It is a cross-sectional view of the internal structure of a delivery pipe in the overall structure of an anti-clogging delivery structure for filling polyurethane sole stock liquid of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a conveying component in an anti-blocking conveying structure for filling polyurethane sole stock liquid of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the connection between the scraper block and the mounting bolt in the anti-clogging conveying structure for filling the polyurethane sole stock liquid.

[0020] In the figure: 1. Reactor body; 2. Filling machine body; 3. Conveying assembly; 4. Conveying pipe; 5. Fixed plate; 6. Mica electric heating plate; 7. High temperature resistant insulation sleeve; 8. Turntable; 9. Stirring motor; 10. Transmission wheel set; 11. Electric telescopic rod; 12. Fixed rod; 13. Linkage mother rod; 14. Linkage sub-rod; 15. Mixing block; 16. Scraper block; 17. Mounting bolts. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, an anti-blocking conveying structure for filling polyurethane sole stock liquid includes a conveying assembly 3 arranged below a reactor body 1, the conveying assembly 3 includes a conveying pipe 4, and the top front position of the conveying pipe 4 is connected to the drain valve of the reactor body 1;

[0023] One end of the conveying pipe 4 away from the reactor body 1 is connected to the filling machine body 2, the front end of the conveying pipe 4 is installed with a fixed plate 5 through a connecting bolt, a turntable 8 is rotatably installed through the front and rear ends of the fixed plate 5, and a sealing strip is provided at the connection between the fixed plate 5 and the turntable 8, the front end of the turntable 8 is installed with an electric telescopic rod 11 through a mounting rod, and the rear end of the turntable 8 is installed with a fixed rod 12 through a fixing bolt, a mounting groove is provided inside the fixed rod 12, and a linkage mother rod 13 is movably installed in the mounting groove, an adjustment groove is provided in the center position of the linkage mother rod 13, and a number of linkage sub-rods 14 are rotatably installed in the adjusting groove, a mixing block 15 is movably connected to the side of the several linkage sub-rods 14 away from the linkage mother rod 13, and the two mixing blocks 15 are connected to scraper blocks 16 through a number of mounting bolts 17 on the side away from the linkage sub-rods 14.

[0024] In this embodiment, a plurality of mounting bolts 17 are arranged equidistantly on the scraper block 16, and the scraper block 16 is detachably connected to the mixing block 15 via the mounting bolts 17. By unscrewing the mounting bolts 17, the scraper block 16 can be easily removed for replacement. The non-integrated arrangement facilitates maintenance and replacement.

[0025] In this embodiment, the push rod end of the electric telescopic rod 11 passes through the front and rear ends of the turntable 8, and a sealing ring is provided at the connection between the push rod of the electric telescopic rod 11 and the turntable 8. The push rod of the electric telescopic rod 11 matches the mounting groove of the fixed rod 12. The push rod of the electric telescopic rod 11 extends into the mounting groove, and the push rod is connected to the linkage mother rod 13 through a docking bolt. The push rod of the electric telescopic rod 11 is extended to drive the linkage mother rod 13 to move away from the turntable 8. The linkage mother rod 13 can drive the linkage sub-rod 14 to expand, and the scraper block 16 can be pushed to a position that fits the inner wall of the conveying pipe 4, which is convenient for adjustment.

[0026] In this embodiment, the outer ring of the conveying pipe 4 is provided with a mica electric heating plate 6, and the outer ring of the mica electric heating plate 6 is provided with a high-temperature resistant insulation sleeve 7. By energizing the mica electric heating plate 6, the conveying pipe 4 is conveniently heated, so that the polyurethane raw liquid inside it is heated, thereby reducing the viscosity and facilitating the transportation of raw materials. In addition, by providing the high-temperature resistant insulation sleeve 7, the mica electric heating plate 6 is prevented from being directly exposed to the outside, thereby reducing the probability of burns caused by accidental touch.

[0027] In this embodiment, a mounting frame is fixedly connected to one side of the turntable 8, and a stirring motor 9 is installed at the front end of the mounting frame. The driving shaft of the stirring motor 9 is connected to the turntable 8 through a transmission wheel group 10. The driving shaft of the stirring motor 9 rotates, driving the mixing block 15 and the scraper block 16 to rotate in the conveying pipe 4, thereby facilitating the stirring of the polyurethane stock solution and improving the heating uniformity.

[0028] In this embodiment, the two scraping blocks 16 are conically arranged on one side away from the fixed rod 12, and the outer side of the scraping block 16 matches the inner side of the conveying pipe 4. The scraping block 16 rotates in contact with the inner wall of the conveying pipe 4, so that most of the remaining stock liquid can be scraped off. At the same time, the scraping block 16 rotates quickly to throw off the scraped stock liquid and the stock liquid adhered to itself, which can avoid more polyurethane stock liquid from adhering to the inside of the conveying pipe 4 and improve the discharge effect.

[0029] It should be noted that the utility model is an anti-blocking conveying structure for filling polyurethane sole stock solution. When in use, first, during the discharge process, the mica electric heating plate 6 can be energized to heat the conveying pipe 4, so that the polyurethane stock solution inside it is heated, thereby reducing the viscosity. After that, the stock solution is conveyed through the conveying pipe 4 and flows into the filling machine body 2, and is filled through the filling machine body 2;

[0030] And in the conveying process, the stirring motor 9 can be started as needed, because the driving shaft of the stirring motor 9 is connected to the turntable 8 through the transmission wheel group 10, and the turntable 8 is rotatably installed on the fixed plate 5, and the rear end of the turntable 8 is installed with a fixing rod 12 through a fixing bolt, and the fixed rod 12 is movably installed with a linkage mother rod 13 inside, and the outer ring of the linkage mother rod 13 is connected with a mixing block 15 through a linkage sub-rod 14, and a scraper block 16 is installed on the mixing block 15, so that the driving shaft of the stirring motor 9 can be rotated to drive the mixing block 15 and the scraper block 16 to rotate in the conveying pipe 4, so as to play a role in stirring the polyurethane stock solution, which is convenient for improving the heating uniformity;

[0031] When there is less polyurethane stock solution in the delivery pipe 4, the electric telescopic rod 11 can be started. Since the electric telescopic rod 11 is installed at the front end of the turntable 8, and the push rod of the electric telescopic rod 11 penetrates the turntable 8 and is connected with one end of the linkage mother rod 13, the push rod of the electric telescopic rod 11 can be extended to drive the linkage mother rod 13 to move in the direction away from the turntable 8. The movement of the linkage mother rod 13 can drive the linkage sub-rod 14 to expand and push the scraper block 16 to a position in contact with the inner wall of the delivery pipe 4. Then, the stirring motor 9 is started according to the above steps, so that the scraper block 16 is in contact with the inside of the delivery pipe 4 and scrapes, so as to scrape off most of the remaining stock solution. At the same time, the scraper block 16 rotates to throw off the scraped stock solution and the stock solution adhered to itself, so as to avoid more polyurethane stock solution adhering to the inside of the delivery pipe 4, resulting in excessive stock solution residue, which affects subsequent use.

[0032] After use, the push rod of the electric telescopic rod 11 can be retracted to drive the scraper block 16 to reset. When it needs to be disassembled for maintenance, since the fixed plate 5 is connected to the conveying pipe 4 by multiple bolts, the bolts can be unscrewed to remove the fixed plate 5, and then the fixed rod 12 can be pulled out from the inside of the turntable 8 in a direction away from the conveying pipe 4, and then the mounting bolts 17 set at the connection between the scraper block 16 and the mixing block 15 can be unscrewed, and the scraper block 16 can be removed for replacement. The non-integrated arrangement is convenient for maintenance and replacement.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-blocking conveying structure for filling polyurethane sole stock solution, characterized in that: It comprises a conveying assembly (3) arranged below the reactor body (1), the conveying assembly (3) comprising a conveying pipe (4), the top end of the conveying pipe (4) being connected to a liquid discharge valve of the reactor body (1); The end of the delivery pipe (4) away from the reactor body (1) is connected to the filling machine body (2); the front end of the delivery pipe (4) is installed with a fixed plate (5) through a connecting bolt; a rotating plate (8) is rotatably installed through the front and rear ends of the fixed plate (5); a sealing strip is provided at the connection between the fixed plate (5) and the rotating plate (8); the front end of the rotating plate (8) is installed with an electric telescopic rod (11) through a mounting rod; the rear end of the rotating plate (8) is installed with a fixing rod (12) through a fixing bolt; The fixing rod (12) is provided with an installation groove inside, and a linkage mother rod (13) is movably installed in the installation groove. An adjustment groove is provided at the center of the linkage mother rod (13), and a plurality of linkage sub-rods (14) are rotatably installed in the adjustment groove. A mixing block (15) is movably connected to one side of the plurality of linkage sub-rods (14) away from the linkage mother rod (13), and a scraper block (16) is connected to one side of the two mixing blocks (15) away from the linkage sub-rods (14) via a plurality of installation bolts (17).

2. The anti-blocking conveying structure for filling polyurethane sole stock solution according to claim 1 is characterized by: A plurality of the mounting bolts (17) are arranged at equal distances on the scraper block (16), and the scraper block (16) is detachably connected to the mixing block (15) via the mounting bolts (17).

3. The anti-blocking conveying structure for filling polyurethane sole stock solution according to claim 1 is characterized by: The push rod end of the electric telescopic rod (11) passes through the front and rear ends of the turntable (8), and a sealing ring is provided at the connection between the push rod of the electric telescopic rod (11) and the turntable (8). The push rod of the electric telescopic rod (11) matches the mounting groove of the fixed rod (12). The push rod of the electric telescopic rod (11) extends into the mounting groove, and is connected to the linkage mother rod (13) via a docking bolt.

4. The anti-blocking conveying structure for filling polyurethane sole stock solution according to claim 1 is characterized by: The outer ring of the delivery pipe (4) is provided with a mica electric heating plate (6), and the outer ring of the mica electric heating plate (6) is provided with a high-temperature resistant heat-insulating sleeve (7).

5. The anti-blocking conveying structure for filling polyurethane sole stock solution according to claim 1, characterized in that: A mounting frame is fixedly connected to one side of the turntable (8), and a stirring motor (9) is installed at the front end of the mounting frame. The driving shaft of the stirring motor (9) is connected to the turntable (8) in a transmission manner through a transmission wheel group (10).

6. The anti-blocking conveying structure for filling polyurethane sole stock solution according to claim 2, characterized in that: The two scraping blocks (16) are tapered on one side away from the fixed rod (12), and the outer side of the scraping blocks (16) matches the inner side of the conveying pipe (4).