Polyurethane resin feeding device

Abstract

The polyurethane resin feeding device comprises a feeding tank, a storage tank and a material suction structure, the feeding tank comprises a feeding cover, an inner feeding tank and an outer feeding tank, a feeding port is formed in the top of the inner feeding tank, the outer feeding tank is arranged outside the inner feeding tank in a sleeving mode, the top of the inner feeding tank and the top of the outer feeding tank are connected in a sealed mode through the feeding cover, and a filter screen communicated with the outer feeding tank is arranged at the bottom of the inner feeding tank; the feeding tank is communicated with the storage tank through the suction structure; the material suction structure comprises a material suction pump, a material suction valve and a material suction pipe, the material suction pump is communicated with the material suction valve, and the free end of the material suction pump and the free end of the material suction valve are respectively communicated with the feeding outer tank and the storage tank through the material suction pipeline; the whole feeding process can be continuously carried out, frequent interruption operation is not needed, and the production efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding, in particular to a polyurethane resin feeding device. Background Art

[0002] With the continuous development of industrial production and the improvement of automation, the demand for efficient and stable material handling methods is growing. Polyurethane resin is widely used in many fields such as coatings, adhesives, foam plastics and other industries, and its production and processing require a large amount of material handling operations. Traditional manual handling and pouring of polyurethane resin is slow, the loading volume is limited each time, and frequent loading operations are required, which greatly affects production efficiency. Utility Model Content

[0003] Based on this, the purpose of the present invention is to provide a polyurethane resin feeding device with high feeding efficiency.

[0004] The utility model adopts the following technical solutions:

[0005] A polyurethane resin feeding device comprises a feeding tank, a storage tank and a suction structure; the feeding tank comprises a feeding cover, an inner feeding tank with a feeding port on the top and an outer feeding tank, the outer feeding tank is sleeved on the outside of the inner feeding tank, the inner feeding tank and the top of the outer feeding tank are closed and connected by the feeding cover, and a filter screen connected to the outer feeding tank is provided at the bottom of the inner feeding tank; the feeding tank and the storage tank are connected through the suction structure; the suction structure comprises a suction pump, a suction valve and a suction pipe, the suction pump and the suction valve are connected, and the free ends of the suction pump and the suction valve are connected to the outer feeding tank and the storage tank respectively through the suction pipe.

[0006] Furthermore, the driving assembly includes a lifting cylinder, a fixed bracket and a rotating motor; the lifting cylinder includes a piston rod, the piston rod is connected to the fixed bracket, and the rotating motor is installed on the fixed bracket; the rotating motor includes a rotating shaft, and the rotating shaft is connected to the grabbing assembly.

[0007] Furthermore, a conveying layer is provided between the outer wall of the inner feeding tank and the inner wall of the outer feeding tank.

[0008] Furthermore, a plurality of heating rods are arranged in the conveying layer.

[0009] Furthermore, a plurality of exhaust ports are provided on the top of the conveying layer.

[0010] Furthermore, a stirring assembly is provided in the feeding inner tank, and the stirring assembly is a stirring rod installed on the feeding cover, a driving structure and a stirring blade provided at the free end of the stirring rod.

[0011] Furthermore, a fixing structure for fixing the loading cover is provided on the loading cover, and the fixing structure includes a first ear plate, a second ear plate, a pressure plate and a clamping piece; the first ear plate and the second ear plate are respectively installed on opposite sides of the outer wall of the loading outer tank, the free end of the first ear plate is pivotally connected to one end of the pressure plate, the free end of the second ear plate is pivotally connected to one end of the clamping piece, and the free end of the clamping piece is provided with an opening that matches the pressure plate; when the opening of the clamping piece is buckled with the pressure plate, the pressure plate and the loading cover are abutted.

[0012] Furthermore, a pressing block is provided on the pressing plate, and a pressing groove matching the pressing block is provided on the loading cover opposite to the pressing block.

[0013] Furthermore, the pressing block outer shell is provided with a spring.

[0014] Furthermore, the polyurethane resin feeding device also includes a reaction tank and a distribution tank; the material suction structure is arranged between the reaction tank and the distribution tank, and the reaction tank and the distribution tank are respectively connected to the feeding tank and the storage tank through pipelines.

[0015] Furthermore, the polyurethane resin feeding device further includes a feeding valve, one end of which is arranged outside the feeding outer tank, and the other end of which is communicated with the feeding outer tank.

[0016] The beneficial effects of the utility model are:

[0017] The polyurethane resin feeding device involved in the utility model has a suction pump in the suction structure, which cooperates with the suction valve and the suction pipe to quickly suck the polyurethane resin from the feeding outer tank and transport it to the storage tank. Compared with the traditional manual feeding method, the feeding speed is greatly improved, and time and labor costs are saved; the entire feeding process can be carried out continuously without frequent interruptions of operation, further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a perspective schematic diagram of a polyurethane resin feeding device according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A three-dimensional schematic diagram of the polyurethane resin feeding device from another angle;

[0020] Figure 3 for Figure 1 A main sectional view of a polyurethane resin feeding device;

[0021] Figure 4 for Figure 1Right sectional view of the polyurethane resin feeding device. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] See also Figures 1 to 4 , which is a polyurethane resin feeding device of an embodiment of the present invention, includes a feeding tank 10, a storage tank 20 and a suction structure 30; the feeding tank 10 includes a feeding cover 11, a feeding inner tank 12 with a feeding port 14 on the top and a feeding outer tank 13, the feeding outer tank 13 is sleeved on the outside of the feeding inner tank 12, and the tops of the feeding inner tank 12 and the feeding outer tank 13 are closed and connected by the feeding cover 11, and a filter screen 120 connected to the feeding outer tank 13 is provided at the bottom of the feeding inner tank 12; the feeding tank 10 and the storage tank 20 are connected through the suction structure 30; the suction structure 30 includes a suction pump 31, a suction valve 32 and a suction pipe 33, the suction pump 31 and the suction valve 32 are connected, and the free ends of the suction pump 31 and the suction valve 32 are connected to the feeding outer tank 13 and the storage tank 20 respectively through the suction pipe 33.

[0026] The working principle of the polyurethane resin feeding device of the present invention is as follows: first, the polyurethane resin is poured into the feeding tank 10 through the feeding port 14 at the top of the feeding inner tank 12; the feeding inner tank 12 is covered by the feeding outer tank 13, and the tops of the feeding inner tank 12 and the feeding outer tank 13 are closed and connected by the feeding cover 11 to form a relatively closed space; after the polyurethane resin is poured into the feeding inner tank 12, under the action of gravity, the polyurethane resin is filtered through the filter screen 120 and flows into the feeding outer tank 13; then, the suction structure 30 is started to perform the feeding operation; when the suction valve 32 is opened, the suction pump 31 sucks the polyurethane resin in the feeding outer tank 13 through the suction pipe 33; the polyurethane resin is transported from the suction outer tank through the suction pipe 33 to the storage tank 20 for storage for subsequent use.

[0027] Compared with the prior art, the polyurethane resin feeding device of the present invention, the suction pump 31 in the suction structure 30 cooperates with the suction valve 32 and the suction pipe 33 to quickly suck the polyurethane resin from the feeding outer tank 13 and transport it to the storage tank 20. Compared with the traditional manual feeding method, the feeding speed is greatly improved, saving time and labor costs; the entire feeding process can be carried out continuously without frequent interruptions, further improving production efficiency; the feeding tank 10 and the storage tank 20 are connected through the suction structure 30, and the entire feeding process is carried out in a relatively closed environment, reducing the contact between the polyurethane resin and the external environment and reducing the risk of contamination; the filter screen 120 at the bottom of the feeding inner tank 12 can perform preliminary filtration on the polyurethane resin, remove larger particles or impurities therein, and prevent these impurities from entering the storage tank 20 and subsequent production links, thereby ensuring the quality of the polyurethane resin.

[0028] See also Figure 3 and Figure 4, a conveying layer 40 is set between the outer wall of the feeding inner tank 12 and the inner wall of the feeding outer tank 13; a plurality of heating rods 41 are set in the conveying layer 40. When the polyurethane resin needs to be fed, the polyurethane resin is first poured into the feeding tank 10 through the feeding port 14 at the top of the feeding inner tank 12; after the polyurethane resin enters the feeding inner tank 12, since the conveying layer 40 is set between the outer wall and the inner wall of the feeding inner tank 12, and a plurality of heating rods 41 are arranged in the conveying layer 40; if the temperature of the polyurethane resin is low and the fluidity is poor, the heating rod 41 can be started at this time; the heating rod 41 generates heat when it is energized, and this heat is transferred to the conveying layer 40; the polyurethane resin in the conveying layer 40 is in indirect contact with the heating rod 41 or receives heat through heat conduction, Thereby, the temperature of the polyurethane resin is increased; as the temperature of the polyurethane resin increases, its fluidity is improved; when the polyurethane resin needs to be transported to the storage tank 20, the suction structure 30 is started; the suction pump 31 sucks the polyurethane resin in the feeding outer tank 13 through the suction pipe 33, and since a filter screen 120 connected to the feeding outer tank 13 is provided at the bottom of the feeding inner tank 12, the polyurethane resin with improved fluidity after heating will flow more smoothly through the filter screen 120 into the feeding outer tank 13, and then be sucked by the suction pump 31 and transported to the storage tank 20 through the suction pipe 33 for storage for subsequent use.

[0029] A plurality of exhaust ports 42 are provided at the top of the transport layer 40. When the heating rod 41 heats the polyurethane resin in the transport layer 40, as the temperature rises, some gas in the polyurethane resin (such as residual air, a small amount of volatile gas generated by the heating of the polyurethane resin, etc.) may be released; at this time, the plurality of exhaust ports 42 provided at the top of the transport layer 40 serve to discharge these gases; the gas rises under the action of buoyancy and is discharged from the transport layer 40 through the exhaust ports 42; thus, gas accumulation in the transport layer 40 is avoided, and the presence of gas is prevented from affecting the heating effect and fluidity of the polyurethane resin, ensuring that the polyurethane resin maintains a relatively stable state during the heating and transporting process, while also reducing the safety risks caused by the pressure increase caused by gas accumulation; moreover, timely exhaust of gas also helps maintain the quality of the polyurethane resin and prevents the gas from having an adverse effect on the performance of the polyurethane resin.

[0030] A stirring assembly 50 is provided in the inner feeding tank 12. The stirring assembly 50 comprises a stirring rod 51 installed on the feeding cover 11, a driving structure (not shown in the figure) and a stirring blade 52 provided at the free end of the stirring rod 51. When the polyurethane resin is poured into the feeding tank 10 from the feed port 14 at the top of the inner feeding tank 12, it starts to rotate under the drive of the driving structure installed on the feeding cover 11; the stirring rod 51 drives the stirring blade 52 provided at its free end to rotate in the polyurethane resin; the rotation of the stirring blade 52 causes the polyurethane resin in the tank to flow; on the one hand, stirring can make the polyurethane resin poured into the tank quickly and evenly distributed, avoiding local accumulation or concentration differences; especially in the heating process of the polyurethane resin, stirring helps to transfer heat more evenly to various parts of the polyurethane resin, preventing local The polyurethane resin is not overheated or overcooled, ensuring that the overall temperature of the polyurethane resin is relatively uniform, thereby improving the heating efficiency and effect and improving the fluidity of the polyurethane resin; on the other hand, in the process of the polyurethane resin flowing from the feeding inner tank 12 through the filter 120 into the feeding outer tank 13, stirring can prevent the polyurethane resin from being blocked at the filter 120, and promote the polyurethane resin to pass through the filter 120 smoothly; at the same time, stirring also helps the gas in the polyurethane resin to escape better, and cooperates with the exhaust port 42 at the top of the conveying layer 40 to further improve the quality of the polyurethane resin and the stability of the feeding process.

[0031] See also Figure 1 and Figure 2A fixing structure 60 for fixing the loading cover 11 is provided on the loading cover 11, and the fixing structure 60 includes a first ear plate 61, a second ear plate 62, a pressure plate 63 and a clamping member 64; the first ear plate 61 and the second ear plate 62 are respectively installed on opposite sides of the outer wall of the loading outer tank 13, the free end of the first ear plate 61 is pivotally connected to one end of the pressure plate 63, the free end of the second ear plate 62 is pivotally connected to one end of the clamping member 64, and the free end of the clamping member 64 is provided with an opening 640 that matches the pressure plate 63; when the opening 640 of the clamping member 64 is sleeved on the pressure plate 63 and buckled, the pressure plate 63 and the loading cover 11 are abutted. When it is necessary to fix the feeding cover 11 on the feeding tank 10, first place the feeding cover 11 on the top of the feeding inner tank 12 and the feeding outer tank 13 to ensure that they are closed and connected; then, operate the fixing structure 60; since the first ear plate 61 is installed on one side of the outer wall of the feeding outer tank 13, and its free end is pivoted to one end of the pressure plate 63, the pressure plate 63 can be rotated at this time to change it from a state parallel to the outer wall of the feeding outer tank 13 to a state roughly vertical, so that it is located above the feeding cover 11; then, rotate the engaging member 64 installed at the free end of the second ear plate 62; the second ear plate 62 is installed on the opposite side of the outer wall of the feeding outer tank 13; the free end of the engaging member 64 is provided with a pivot joint for engaging with the pressure plate 63 matches the opening 640, and the opening 640 of the locking member 64 is placed on the pressure plate 63; when the opening 640 of the locking member 64 is engaged with the pressure plate 63, the pressure plate 63 is restricted to a position between the locking member 64 and the feeding outer tank 13; at this time, since the pressure plate 63 is against the feeding cover 11, the pressure generated by the engagement of the locking member 64 and the pressure plate 63 acts on the pressure plate 63, and the feeding cover 11 is pressed tightly against the top of the feeding tank 10, thereby fixing the feeding cover 11; in this way, it can be ensured that the feeding cover 11 will not be accidentally opened during the storage and transportation of polyurethane resin in the feeding tank 10, thereby ensuring the sealing and safety of the feeding tank 10.

[0032] See also Figure 3 and Figure 4A pressing block 65 is provided on the pressing plate 63 , and a pressing groove 66 matching with the pressing block 65 is provided on the loading cover 11 opposite to the pressing block 65 . When the feeding cover 11 is fixed by the fixing structure 60, the locking member 64 is buckled with the pressure plate 63 so that the pressure plate 63 is against the feeding cover 11; at this time, the pressure block 65 on the pressure plate 63 is just aligned with the pressure groove 66 provided on the feeding cover 11 and matched with the pressure block 65; with the buckling pressure of the locking member 64 and the pressure plate 63, the pressure block 65 gradually enters the pressure groove 66; the cooperation between the pressure block 65 and the pressure groove 66 further enhances the stability and sealing of the fixing of the feeding cover 11; after the pressure block 65 enters the pressure groove 66, on the one hand, it limits the movement of the feeding cover 11 in the horizontal direction, preventing the feeding cover 11 from shaking or displacing in the horizontal direction; on the other hand, in the vertical direction, the cooperation between the pressure block 65 and the pressure groove 66 makes the fit between the feeding cover 11 and the feeding tank 10 tighter, effectively preventing the polyurethane resin from leaking out of the feeding tank 10, ensuring the safety and reliability of the feeding tank 10 during the storage and transportation of polyurethane resin.

[0033] The outer sleeve of the pressure block 65 is provided with a spring 67. When the fixing structure 60 is fixed, the engaging member 64 is buckled with the pressure plate 63, and the pressure plate 63 is against the loading cover 11; at this time, the pressure block 65 gradually approaches the pressure groove 66 on the loading cover 11 under the pressure of the pressure plate 63; the spring 67 provided on the outer sleeve of the pressure block 65 is compressed in this process, and the compression of the spring 67 generates a reverse elastic force, which makes the pressure block 65 and the pressure groove 66 fit more tightly; when the pressure block 65 enters the pressure groove 66, the spring 67 continues to exert elastic force to ensure that the pressure block 65 is always tightly fitted in the pressure groove 66, preventing the pressure block 65 from loosening due to vibration or other external factors, thereby The stability of the feeding cover 11 is further enhanced; on the other hand, the presence of the spring 67 also plays a buffering role; during the installation and disassembly of the fixed structure 60, the spring 67 can absorb part of the impact force, reduce the wear of the pressing block 65, the pressing groove 66, the feeding cover 11 and the feeding tank 10, and extend the service life of the entire feeding device; at the same time, during transportation or use, if the feeding device is subjected to vibration or impact, the spring 67 can also play a certain shock-absorbing role, protecting the connection between the feeding cover 11 and the feeding tank 10 from being damaged, and ensuring that the polyurethane resin can be safely stored and transported.

[0034] See also Figure 1 and Figure 2The polyurethane resin feeding device also includes a reaction tank 70 and a distribution tank 80; the suction structure 30 is arranged between the reaction tank 70 and the distribution tank 80, and the reaction tank 70 and the distribution tank 80 are connected to the feeding tank 10 and the storage tank 20 through a pipeline 90 respectively. First, the polyurethane resin is poured into the feeding tank 10 through the feeding port 14 at the top of the feeding inner tank 12; the feeding inner tank 12 is covered by the feeding outer tank 13, and the tops of the feeding inner tank 12 and the feeding outer tank 13 are closed and connected by the feeding cover 11 to form a relatively closed space; after the polyurethane resin is poured into the feeding inner tank 12, under the action of gravity, the polyurethane resin is filtered through the filter screen 120 and flows into the feeding outer tank 13; then, the suction structure 30 is started to perform the feeding operation; the suction pump 31 in the suction structure 30 sucks the polyurethane resin in the feeding outer tank 13 through the suction pipe 33; when the suction valve 32 is opened, the polyurethane resin is sucked from the suction outer tank through the suction pipe 33 is transported to the distribution tank 80; after the distribution tank 80 receives the polyurethane resin from the feeding tank 10, the polyurethane resin can be further distributed and processed as needed; if the polyurethane resin needs to be reacted, the polyurethane resin in the distribution tank 80 can be transported to the reaction tank 70 through the pipeline 90; in the reaction tank 70, the polyurethane resin can react with other chemical substances to change its properties or prepare specific products; the reacted polyurethane resin or the polyurethane resin directly flowing out of the distribution tank 80 without reaction can be transported to the storage tank 20 through the pipeline 90 for storage for subsequent use.

[0035] The polyurethane resin feeding device further includes a feeding valve 100 , one end of which is disposed outside the feeding outer tank 13 , and the other end of which is communicated with the feeding outer tank 13 . During the normal feeding process, the feeding valve 100 is usually in a closed state; when a small amount of polyurethane resin needs to be directly obtained from the feeding device for detection, testing or other special purposes, the feeding valve 100 can be opened; one end of the feeding valve 100 is arranged outside the feeding outer tank 13, which is convenient for the operator to operate; when the feeding valve 100 is opened, the polyurethane resin in the feeding outer tank 13 can flow out through the feeding valve 100 under the action of the pressure difference; since the polyurethane resin in the feeding inner tank 12 is filtered by the filter 120 and then flows into the feeding outer tank 13, the polyurethane resin flowing out of the feeding valve 100 has also been filtered to a certain extent, thereby ensuring the quality of the polyurethane resin; after the feeding is completed, the feeding valve 100 is closed, and the feeding device continues to perform normal feeding, storage and other operations, and the presence of the feeding valve 100 will not affect the sealing and stability of the entire feeding device.

[0036] The above merely represents the preferred technical solution of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the concept of the present invention, and the present invention is intended to encompass such modifications and variations.

Claims

1. A polyurethane resin feeding device, characterized in that: It includes a feeding tank, a storage tank and a suction structure; the feeding tank includes a feeding cover, an inner feeding tank with a feeding port on the top and an outer feeding tank, the outer feeding tank is sleeved on the outside of the inner feeding tank, the inner feeding tank and the top of the outer feeding tank are closed and connected by the feeding cover, and a filter screen connected to the outer feeding tank is provided at the bottom of the inner feeding tank; the feeding tank and the storage tank are connected through the suction structure; the suction structure includes a suction pump, a suction valve and a suction pipe, the suction pump and the suction valve are connected, and the free ends of the suction pump and the suction valve are connected to the outer feeding tank and the storage tank respectively through the suction pipe.

2. The polyurethane resin feeding device according to claim 1, characterized in that: A conveying layer is provided between the outer wall of the inner feeding tank and the inner wall of the outer feeding tank.

3. The polyurethane resin feeding device according to claim 2, characterized in that: A plurality of heating rods are arranged in the conveying layer.

4. The polyurethane resin feeding device according to claim 3, characterized in that: A plurality of exhaust ports are arranged on the top of the conveying layer.

5. The polyurethane resin feeding device according to claim 1, characterized in that: A stirring assembly is provided in the feeding inner tank, and the stirring assembly comprises a stirring rod installed on the feeding cover, a driving structure and a stirring blade provided at the free end of the stirring rod.

6. The polyurethane resin feeding device according to claim 1, characterized in that: The loading cover is provided with a fixing structure for fixing the loading cover, and the fixing structure includes a first ear plate, a second ear plate, a pressure plate and a clamping piece; the first ear plate and the second ear plate are respectively installed on opposite sides of the outer wall of the loading outer tank, the free end of the first ear plate is pivotally connected to one end of the pressure plate, the free end of the second ear plate is pivotally connected to one end of the clamping piece, and the free end of the clamping piece is provided with an opening that matches the pressure plate; when the opening of the clamping piece is buckled with the pressure plate, the pressure plate and the loading cover are abutted.

7. The polyurethane resin feeding device according to claim 6, characterized in that: A pressing block is provided on the pressing plate, and a pressing groove matched with the pressing block is provided on the loading cover opposite to the pressing block.

8. The polyurethane resin feeding device according to claim 7, characterized in that: The pressing block outer shell is provided with a spring.

9. The polyurethane resin feeding device according to claim 1, characterized in that: The polyurethane resin feeding device further includes a reaction tank and a distribution tank; the material suction structure is arranged between the reaction tank and the distribution tank, and the reaction tank and the distribution tank are respectively connected to the feeding tank and the storage tank through pipelines.

10. The polyurethane resin feeding device according to claim 1, characterized in that: The polyurethane resin feeding device further includes a feeding valve, one end of which is arranged outside the feeding outer tank, and the other end of which is communicated with the feeding outer tank.

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