Flame-retardant polyhydroester adhesive and preparation method thereof

Abstract

The invention relates to the technical field of flame-retardant polyhydrogen ester adhesives, in particular to a flame-retardant polyhydrogen ester adhesive and a preparation method thereof.The flame-retardant polyhydrogen ester adhesive comprises a center frame and a flow guide framework, one side of the center frame is fixedly connected with a first feeding frame, and the other side of the center frame is fixedly connected with a second feeding frame; the two sides of the first feeding frame and the two sides of the second feeding frame are each fixedly connected with a storage frame. Through the arrangement of the center frame, the flow guide frame, the first feeding frame, the second feeding frame, the material storage frame, the positioning frame and the material pushing seat, the equipment can perform more sufficient and uniform mixing and batching operation on two thick raw materials of the flame-retardant polyhydrogen ester adhesive; a worker firstly fills two kinds of thick flame-retardant polyhydrogen ester adhesive raw materials needing to be used from the injection valve seats at the tops of one ends of the two sets of storage frames, and the flame-retardant polyhydrogen ester adhesive raw materials are extruded and collected towards the interior of the center frame through the pushing seats at the two ends.

Description

Technical Field

[0001] The invention relates to the technical field of flame retardant polyurethane adhesives, in particular to a flame retardant polyurethane adhesive and a preparation method thereof. Background Art

[0002] Adhesion refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects together with adhesives. It has the characteristics of continuous stress distribution, light weight, or sealing, and low process temperature in most processes. Adhesives are particularly suitable for connecting different materials, different thicknesses, ultra-thin specifications and complex components. Adhesives are developing fastest in recent generations and are widely used in various industries. There are many ways to classify adhesives. According to the application method, they can be divided into thermosetting, hot melt, room temperature curing, pressure sensitive, etc. According to the application object, they can be divided into structural, non-configurational or special adhesives. The joint forms can be divided into water-soluble, water-emulsified, solvent-based and various solid types, etc. Synthetic Chemists often like to classify adhesives according to the chemical composition of the adhesive. Polyurethane is a polymer material. According to relevant public information, polyurethane is a polymer material composed of multiple hydrogen atoms. It has good oil resistance, acid resistance, heat resistance, corrosion resistance and other characteristics. It is widely used in petroleum, chemical industry, automobile manufacturing, electronics and electrical industry and other fields. Flame-retardant polyurethane adhesive can effectively perform flame-retardant protection operations at the adhesion point, but flame-retardant polyurethane adhesive often has the problem of uneven mixing of production raw materials during production.

[0003] For example, a patent document with publication number CN 102757754 B discloses a flame retardant adhesive and a preparation method thereof, wherein the flame retardant adhesive contains a water-soluble amino resin, a dehydration catalyst, a carbonizing agent and an auxiliary agent and may contain water, wherein the dehydration catalyst is selected from one or more of ammonium polyphosphate, melamine orthophosphate and melamine pyrophosphate, and the degree of polymerization of the ammonium polyphosphate is greater than twenty. The flame retardant adhesive prepared by the method of the present invention has good bonding properties, flame retardant properties and smoke suppression properties.

[0004] However, in the process of producing and preparing flame-retardant adhesives, this structure can only adopt the usual production method of stirring and mixing raw materials. However, when it is applied to the preparation of flame-retardant polyurethane adhesives, its production raw materials are mostly thick liquid colloids. At this time, the efficiency of liquid stirring and mixing is low, and the thick liquid colloid has properties similar to solids, and it is very easy to rotate synchronously with the stirring structure, resulting in uneven stirring of raw materials during the preparation of flame-retardant polyurethane adhesives, affecting the subsequent flame retardant and even bonding effects. At the same time, the equipment cannot perform synchronous mixing and proportioning operations with adaptive efficiency according to different raw materials for the preparation of flame-retardant polyurethane adhesives, and cannot meet the production needs of the preparation of flame-retardant polyurethane adhesives. Therefore, it is urgent to design a flame-retardant polyurethane adhesive and a preparation method thereof to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a flame retardant polyurethane adhesive and a preparation method thereof, so as to solve the problem that the existing structure proposed in the above background technology can only adopt the usual production method of stirring and mixing raw materials during the production and preparation of flame retardant adhesives. However, when applied to the preparation of flame retardant polyurethane adhesives, the production raw materials are mostly thick liquid colloids. At this time, the efficiency of liquid stirring and mixing is low, and the thick liquid colloid has properties similar to solids, and is very easy to rotate synchronously with the stirring structure, resulting in uneven stirring of raw materials during the preparation of flame retardant polyurethane adhesives, affecting the subsequent flame retardant and even bonding effects. At the same time, the equipment cannot perform synchronous mixing and proportioning operations according to the different raw materials for the preparation of flame retardant polyurethane adhesives, and cannot meet the production needs of the preparation of flame retardant polyurethane adhesives.

[0006] To achieve the above object, the present invention provides the following technical solution: a flame retardant polyurethane adhesive and a preparation method thereof,

[0007] S1: The two kinds of thick flame-retardant polyurethane adhesive raw materials to be used are filled from the injection valve seats at the top of one end of the two sets of storage racks respectively. At this time, the raw materials are filled into the inside of the folding material cover inside the storage rack. The moving frame at one end of the folding material cover can be limited and fixed inside the positioning frame at one end of the inner wall of the storage rack. When the thick flame-retardant polyurethane adhesive raw materials are filled, the two sets of sealing plates inside the first feeding rack and the second feeding rack are synchronously pulled out from the extraction groove through the top pulling rack and the pulling connecting rod. , so that the two ends of the center frame are connected with one end of the two groups of material storage racks through the first feeding rack and the second feeding rack, and then the two groups of material storage racks can be pushed away from the pushing seats inside the positioning rack at one end, so that the pushing seats at both ends can be gathered along the inside of the two groups of material storage racks to the center of the center rack, and the pushing seats push the moving frame at one end of the material storage rack while the folding material cover can be adaptively folded inside the material storage rack, so that the flame retardant polyurethane adhesive raw materials are squeezed and gathered into the center rack through the pushing seats at both ends;

[0008] S2: The two thick raw materials of the flame retardant polyurethane adhesive can be uniformly diffused around along the anti-stick coating under the guidance of the anti-stick coating at both ends of the inner wall of the center frame, and mixed at the mixing ring grid, and finally mixed and discharged from the discharge valve seat at the top along the guide frame. This design allows the thick flame retardant polyurethane adhesive raw materials that cannot be stirred and mixed to be fully mixed;

[0009] It includes a center frame, a flow guide frame is provided on the center sleeve of the side of the center frame, a first feed frame is fixedly connected to one side of the center frame, a second feed frame is fixedly connected to the other side of the center frame, storage frames are fixedly connected to both sides of the first feed frame and the second feed frame, and the ends of the two groups of storage frames away from each other are fixedly connected to positioning frames, a pushing seat is movably connected inside the positioning frame, a pushing frame is fixedly connected to one end of the pushing seat, and movable pull heads are fixedly connected to both sides of the pushing frame;

[0010] A push rod frame, the front and rear ends of the center frame are fixedly connected with push rod frames, the bottom end of the push rod frame is fixedly connected with a driving frame, a transmission groove is opened on the inner bottom wall of the driving frame, a driving motor is arranged on the back of the driving frame, a transmission belt is arranged inside the transmission groove through the driving motor, driving grooves are opened on both sides of the inner wall of the driving frame, driving gears are evenly arranged inside the driving grooves, and a control gear is arranged inside the driving frame.

[0011] Preferably, damping sleeves are provided at both ends of the push rod frame, and reciprocating screws are fixedly connected to both ends of the push rod frame via control gears, and the reciprocating screws are in close contact with the damping sleeves.

[0012] Preferably, one end of the reciprocating screw is fixedly connected to a positioning head, and the outer surface of the reciprocating screw is sleeved with a pulling screw sleeve.

[0013] Preferably, a pulling rod is fixedly connected to the side surface of the pulling screw sleeve, and overhead sockets are fixedly connected to both ends of the pushing rod frame.

[0014] Preferably, a movable frame is movably connected internally at one end of the material storage rack, a folding material cover is provided at one end of the movable frame, a filling valve seat is provided at the top of one end of the material storage rack, and the filling valve seat is communicated with the movable frame and the folding material cover.

[0015] Preferably, a positioning frame is provided on the inner wall of one end of the material storage rack, storage side frames are provided on both sides of the folding material cover, elastic strips are provided on the inner walls of the storage side frames, and the storage side frames and the elastic strips are adapted to each other.

[0016] Preferably, sealing frames are provided on the front and back sides of the first feed rack and the second feed rack, draw grooves are provided inside the first feed rack and the second feed rack, and sealing plates are movably connected inside the sealing frames and the draw grooves.

[0017] Preferably, the top end of the sealing plate is fixedly connected to a pumping frame, and both ends between the two groups of pumping frames are fixedly connected to pumping connecting rods.

[0018] Preferably, a discharge valve seat is provided at the center of the top end of the flow guide frame, and anti-stick coatings are provided at both ends of the inner wall of the center frame.

[0019] Preferably, a guide cone groove is opened between the anti-stick coatings, and a mixing ring grid is arranged at the center of the inner wall of the guide cone groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The flame retardant polyurethane adhesive and the preparation method thereof can enable the equipment to perform a more adequate and uniform mixing and batching operation of two thick raw materials of the flame retardant polyurethane adhesive by arranging a central frame, a flow guide frame, a first feeding frame, a second feeding frame, a storage frame, a positioning frame, a material pushing seat, a moving frame, a folding material cover, a material injection valve seat, a positioning frame, a sealing frame, a pumping groove, a sealing plate, a pumping frame, a pumping connecting rod, a material discharging valve seat, an anti-sticking coating, a flow guide cone groove and a mixing ring grid. In the actual use process, the staff firstly pushes the two thick flame retardant polyurethane adhesive raw materials to be used from the injection material on the top of one end of the two groups of storage frames, respectively. The filling is carried out at the valve seat, and the flame retardant polyurethane adhesive raw materials are squeezed and gathered into the interior of the center frame through the push seats at both ends. At the same time, the two thick raw materials of the flame retardant polyurethane adhesive can be evenly diffused around along the anti-stick coating under the guidance of the anti-stick coating at both ends of the inner wall of the center frame, and mixed at the mixing ring grid, and finally mixed and discharged from the discharge valve seat at the top along the guide frame. This design ensures that the thick flame retardant polyurethane adhesive raw materials that cannot be stirred and mixed can also be fully mixed, ensuring a more uniform mixing and better flame retardant adhesion use, which reflects the practicality of the equipment design.

[0022] The flame retardant polyurethane adhesive and the preparation method thereof further improve the overall use effect of the equipment by arranging a central frame, a material storage frame, a positioning frame, a material pushing seat, a material pushing frame, a movable pull head, a push rod frame, a drive chassis, a transmission groove, a drive motor, a transmission belt, a drive groove, a drive gear, a control gear, a damping shaft sleeve, a reciprocating screw rod, a positioning head, a pulling screw rod sleeve, a pulling rod and an overhead seat. In daily use, the staff can start the driving motor on the back of the driving chassis to drive the driving grooves at both ends of the inner wall of the driving chassis through the transmission belt inside the transmission groove. The driving gear inside rotates synchronously, and the driving gear starts the control gear inside the push rod frame from the bottom of the push rod frame. Through the adaptability adjustment of the reciprocating screw rod, the mixing rate of the two flame retardant polyurethane adhesive raw materials inside the center frame can be effectively controlled to meet the control requirements of the preparation of flame retardant polyurethane adhesive. At the same time, the elastic strips inside the storage side frames on both sides of the positioning frame can perform stable damping and limiting operations when the pulling rod moves back and forth, which greatly improves the stability of the push seat in pushing the flame retardant polyurethane adhesive raw materials and reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a three-dimensional schematic diagram of the structure of the present invention;

[0024] Figure 2 It is an overall schematic diagram of the center frame structure of the present invention;

[0025] Figure 3 It is an overall schematic diagram of the first feeding rack and the second feeding rack structure of the present invention;

[0026] Figure 4 It is an overall schematic diagram of the material storage rack structure of the present invention;

[0027] Figure 5 It is an overall schematic diagram of the pusher seat structure of the present invention;

[0028] Figure 6 It is an overall schematic diagram of the push rod frame structure of the present invention;

[0029] Figure 7 It is an overall schematic diagram of the driving chassis structure of the present invention;

[0030] Figure 8 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0031] Fig. 9 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the figure.

[0032] In the figure: 1, center frame; 2, guide frame; 3, first feed frame; 4, second feed frame; 5, storage frame; 6, positioning frame; 7, pusher seat; 8, pusher frame; 9, moving pull head; 10, push rod frame; 11, driving chassis; 12, transmission slot; 13, driving motor; 14, transmission belt; 15, driving slot; 16, driving gear; 17, control gear; 18, damping sleeve; 19, reciprocating screw; 20, Positioning head; 21. Pulling screw sleeve; 22. Pulling rod; 23. Overhead seat; 24. Moving frame; 25. Folding cover; 26. Filling valve seat; 27. Positioning frame; 28. Storage side frame; 29. ​​Elastic rubber strip; 30. Sealing frame; 31. Drawing groove; 32. Sealing plate; 33. Drawing frame; 34. Drawing connecting rod; 35. Discharge valve seat; 36. Anti-stick coating; 37. Guide cone groove; 38. Mixing ring grille. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1-9 , an embodiment provided by the present invention:

[0035] A flame retardant polyurethane adhesive and a preparation method thereof:

[0036] S1: The two kinds of thick flame-retardant polyurethane adhesive raw materials to be used are respectively filled from the injection valve seats 26 at the top of one end of the two groups of storage racks 5. At this time, the raw materials are filled into the inside of the folding cover 25 inside the storage rack 5. The moving frame 24 at one end of the folding cover 25 can be limited and fixed inside the positioning frame 27 at one end of the inner wall of the storage rack 5. When the thick flame-retardant polyurethane adhesive raw materials are filled, the two groups of sealing plates 32 inside the first feeding rack 3 and the second feeding rack 4 are synchronously pulled from the extraction groove 31 through the top extraction rack 33 and the extraction connecting rod 34. The two ends of the center frame 1 are connected to one end of the two storage racks 5 through the first feeding rack 3 and the second feeding rack 4, and then the two storage racks 5 can be pushed away from the pushing seat 7 inside the positioning rack 6 at one end, so that the pushing seats 7 at both ends are gathered along the inside of the two storage racks 5 to the center of the center frame 1. The pushing seat 7 pushes the moving frame 24 at one end of the storage rack 5 and the folding cover 25 can be adaptively folded inside the storage rack 5, so that the flame retardant polyurethane adhesive raw material is squeezed and gathered into the center frame 1 through the pushing seats 7 at both ends;

[0037] S2: The two thick raw materials of the flame retardant polyurethane adhesive can be uniformly diffused around along the anti-sticking coating 36 under the guidance of the anti-sticking coating 36 at both ends of the inner wall of the center frame 1, and mixed at the mixing ring grid 38, and finally mixed and discharged from the discharge valve seat 35 at the top along the guide frame 2. This design allows the thick flame retardant polyurethane adhesive raw materials that cannot be stirred and mixed to be fully mixed;

[0038] The invention comprises a central frame 1, a flow guide frame 2 is sleeved on the center of the side of the central frame 1, a first feeding frame 3 is fixedly connected to one side of the central frame 1, a second feeding frame 4 is fixedly connected to the other side of the central frame 1, storage frames 5 are fixedly connected to both sides of the first feeding frame 3 and the second feeding frame 4, a positioning frame 6 is fixedly connected to one end of the two groups of storage frames 5 away from each other, a pushing seat 7 is movably connected inside the positioning frame 6, a pushing frame 8 is fixedly connected to one end of the pushing seat 7, a moving pull head 9 is fixedly connected to both sides of the pushing frame 8, a moving frame 24 is movably connected inside one end of the storage frame 5, a folding material cover 25 is arranged at one end of the moving frame 24, a filling valve seat 26 is arranged on the top of one end of the storage frame 5, the filling valve seat 26 is communicated with the moving frame 24 and the folding material cover 25, and a fixed inner wall at one end of the storage frame 5 is arranged The first feeding frame 3 and the second feeding frame 4 are provided with sealing frames 30 on both sides, and the first feeding frame 3 and the second feeding frame 4 are provided with extraction grooves 31 inside. The sealing frames 30 and the extraction grooves 31 are movably connected with sealing plates 32 inside. The top of the sealing plate 32 is fixedly connected with a pumping frame 33, and the two ends between the two groups of pumping frames 33 are fixedly connected with pumping connecting rods 34. A discharge valve seat 35 is provided at the top center of the guide frame 2, and anti-stick coatings 36 are provided at both ends of the inner wall of the center frame 1. A guide cone groove 37 is provided between the anti-stick coatings 36, and a mixing ring grille 38 is provided at the center of the inner wall of the guide cone groove 37.

[0039] The push rod frame 10 is fixedly connected to the front and rear ends of the center frame 1, and the bottom end of the push rod frame 10 is fixedly connected to the driving frame 11. The inner bottom wall of the driving frame 11 is provided with a transmission groove 12, and the back of the driving frame 11 is provided with a driving motor 13. The inside of the transmission groove 12 is provided with a transmission belt 14 through the driving motor 13. The inner wall of the driving frame 11 is provided with a driving groove 15 on both sides, and the inside of the driving groove 15 is evenly provided with a driving gear 16. The inside of the driving frame 11 A control gear 17 is provided, and damping sleeves 18 are provided at both ends of the push rod frame 10. A reciprocating screw 19 is fixedly connected to both ends of the push rod frame 10 through the control gear 17. The reciprocating screw 19 fits with the damping sleeve 18. One end of the reciprocating screw 19 is fixedly connected to a positioning head 20. A pulling screw sleeve 21 is sleeved on the outer surface of the reciprocating screw 19. A pulling rod 22 is fixedly connected to the side of the pulling screw sleeve 21. An overhead socket 23 is fixedly connected to both ends of the push rod frame 10.

[0040] Working principle: When in use, the user first fills the two kinds of thick flame-retardant polyurethane adhesive raw materials to be used from the injection valve seats 26 at the top of one end of the two groups of storage racks 5 respectively, and then fills the raw materials into the inside of the folding material cover 25 inside the storage rack 5. The movable frame 24 at one end of the folding material cover 25 can be limited and fixed inside the positioning frame 27 at one end of the inner wall of the storage rack 5. When the thick raw materials of flame-retardant polyurethane adhesive are filled, the two groups of sealing plates 32 inside the first feeding rack 3 and the second feeding rack 4 are synchronously withdrawn from the withdrawal groove 31 through the withdrawing rack 33 and the withdrawing connecting rod 34 at the top, so that the two ends of the center rack 1 are connected to one end of the two groups of storage racks 5 through the first feeding rack 3 and the second feeding rack 4. The two groups of material storage racks 5 are connected, and then the material pushing seats 7 inside the positioning rack 6 at one end can be pushed away from each other, so that the material pushing seats 7 at both ends can be gathered along the inside of the two groups of material storage racks 5 to the center frame 1 in the center. The material pushing seats 7 push the moving frame 24 at one end of the material storage rack 5, and the folding cover 25 can be adaptively folded inside the material storage rack 5, so that the flame retardant polyurethane adhesive raw materials are squeezed and gathered into the center frame 1 through the material pushing seats 7 at both ends. At the same time, the gathered two thick raw materials of the flame retardant polyurethane adhesive can be evenly diffused to the surroundings along the anti-sticking coating 36 at both ends of the inner wall of the center frame 1, and mixed at the mixing ring grid 38, and finally discharged from the top along the guide frame 2. The mixture is discharged at the valve seat 35. This design allows the thick flame-retardant polyurethane adhesive raw materials that are difficult to stir and mix to be fully mixed, ensuring that the mixture is more uniform and better for flame-retardant adhesion. In daily use, the staff can start the drive motor 13 on the back of the drive chassis 11 to drive the drive gears 16 in the drive grooves 15 at both ends of the inner wall of the drive chassis 11 through the transmission belt 14 inside the transmission groove 12 to rotate synchronously. The drive gear 16 then starts the control gear 17 inside the push rod frame 10 from the bottom of the push rod frame 10, thereby starting the reciprocating screws 19 at both ends of the push rod frame 10 synchronously. When the reciprocating screw 19 rotates, the damping sleeves at both ends of the push rod frame 10 18 is sleeved with rotation damping, and the screw rod patterns on the reciprocating screw rods 19 at both ends are in opposite directions, so that the pulling screw rod sleeves 21 sleeved on the two sets of reciprocating screw rods 19 perform opposite driving operations, and the positioning head 20 at one end of the reciprocating screw rod 19 is positioned. When the pulling screw rod sleeve 21 reciprocates along the reciprocating screw rod 19, the pulling rod 22 on its side can perform a pulling operation at the moving pulling head 9 on both sides of the pushing frame 8 at one end of the pushing seat 7, so that the pushing seats 7 inside the two sets of positioning frames 6 can perform synchronous movement operations toward the center of the center frame 1. Through the adaptability adjustment of the reciprocating screw rod 19, the mixing rate of the two flame-retardant polyurethane adhesive raw materials inside the center frame 1 can be effectively controlled to meet the control requirements of the preparation of flame-retardant polyurethane adhesive.At the same time, the elastic rubber strips 29 inside the storage side frames 28 on both sides of the positioning frame 6 can perform stable damping and limiting operations when the pulling rod 22 reciprocates back and forth, greatly improving the stability of the pushing seat 7 in pushing the flame-retardant polyurethane adhesive raw material. The above is the entire working principle of the present invention.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A flame retardant polyurethane adhesive and a preparation method thereof, characterized in that: S1: Two kinds of thick flame-retardant polyurethane adhesive raw materials to be used are respectively filled from the injection valve seats (26) at the top of one end of the two groups of storage racks (5). At this time, the raw materials are filled into the inside of the folding material cover (25) inside the storage rack (5). The movable frame (24) at one end of the folding material cover (25) can be limited and fixed inside the positioning frame (27) at one end of the inner wall of the storage rack (5). When the thick flame-retardant polyurethane adhesive raw materials are filled, the two groups of sealing plates (32) inside the first feeding rack (3) and the second feeding rack (4) are synchronously drawn out from the drawing groove (31) through the drawing frame (33) and the drawing connecting rod (34) at the top. Thus, the two ends of the central frame (1) are connected to one end of the two groups of material storage frames (5) through the first feeding frame (3) and the second feeding frame (4), and then the two groups of material storage frames (5) can be pushed away from each other by the pushing seat (7) inside the positioning frame (6) at one end, so that the pushing seats (7) at both ends are gathered along the inside of the two groups of material storage frames (5) toward the central frame (1) in the center, and the pushing seat (7) pushes the moving frame (24) at one end of the material storage frame (5) while the folding material cover (25) can be adaptively folded inside the material storage frame (5), so that the flame retardant polyurethane adhesive raw material is squeezed and gathered into the center frame (1) through the pushing seats (7) at both ends; S2: The two thick raw materials of the flame retardant polyurethane adhesive can be uniformly diffused to the surroundings along the anti-sticking coating (36) under the guidance of the anti-sticking coating (36) at both ends of the inner wall of the central frame (1), and mixed at the mixing ring grid (38), and finally mixed and discharged from the discharge valve seat (35) at the top along the guide frame (2). This design allows the thick flame retardant polyurethane adhesive raw materials that cannot be stirred and mixed to be fully mixed; It comprises a center frame (1), a flow guide frame (2) is sleeved at the center of the side of the center frame (1), a first feed frame (3) is fixedly connected to one side of the center frame (1), a second feed frame (4) is fixedly connected to the other side of the center frame (1), storage frames (5) are fixedly connected to both sides of the first feed frame (3) and the second feed frame (4), and the ends of the two groups of storage frames (5) that are away from each other are fixedly connected to positioning frames (6), the positioning frames (6) are movably connected to a pusher seat (7) inside, one end of the pusher seat (7) is fixedly connected to a pusher frame (8), and both sides of the pusher frame (8) are fixedly connected to movable pull heads (9); A push rod frame (10), the front and rear ends of the central frame (1) are fixedly connected with the push rod frame (10), the bottom end of the push rod frame (10) is fixedly connected with a driving frame (11), the inner bottom wall of the driving frame (11) is provided with a transmission groove (12), the back of the driving frame (11) is provided with a driving motor (13), the inside of the transmission groove (12) is provided with a transmission belt (14) through the driving motor (13), the inner wall of the driving frame (11) is provided with driving grooves (15) on both sides, the inside of the driving grooves (15) is evenly provided with driving gears (16), and the inside of the driving frame (11) is provided with a control gear (17).

2. A flame retardant polyurethane adhesive and a preparation method thereof according to claim 1, characterized in that: Damping sleeves (18) are provided at both ends of the push rod frame (10), and reciprocating screws (19) are fixedly connected at both ends of the push rod frame (10) via control gears (17), and the reciprocating screws (19) are in close contact with the damping sleeves (18).

3. A flame retardant polyurethane adhesive and a preparation method thereof according to claim 2, characterized in that: One end of the reciprocating screw rod (19) is fixedly connected to a positioning head (20), and the outer surface of the reciprocating screw rod (19) is sleeved with a pulling screw rod sleeve (21).

4. A flame retardant polyurethane adhesive and a preparation method thereof according to claim 3, characterized in that: A pulling rod (22) is fixedly connected to the side of the pulling screw sleeve (21), and overhead sockets (23) are fixedly connected to both ends of the push rod frame (10).

5. The flame retardant polyurethane adhesive and the preparation method thereof according to claim 1, characterized in that: One end of the material storage rack (5) is movably connected to a moving frame (24), one end of the moving frame (24) is provided with a folding material cover (25), and the top of one end of the material storage rack (5) is provided with a filling valve seat (26), and the filling valve seat (26) is connected to the moving frame (24) and the folding material cover (25).

6. A flame retardant polyurethane adhesive and a preparation method thereof according to claim 5, characterized in that: A positioning frame (27) is arranged on the inner wall of one end of the material storage rack (5), storage side frames (28) are provided on both sides of the folding material cover (25), elastic rubber strips (29) are arranged on the inner walls of the storage side frames (28), and the storage side frames (28) and the elastic rubber strips (29) are adapted to each other.

7. The flame retardant polyurethane adhesive and the preparation method thereof according to claim 1, characterized in that: Sealing frames (30) are provided on the front and back sides of the first feeding rack (3) and the second feeding rack (4); drawout grooves (31) are provided inside the first feeding rack (3) and the second feeding rack (4); and sealing plates (32) are movably connected inside the sealing frames (30) and the drawout grooves (31).

8. The flame retardant polyurethane adhesive and the preparation method thereof according to claim 7, characterized in that: The top end of the sealing plate (32) is fixedly connected to a pumping frame (33), and the two ends between the two groups of pumping frames (33) are fixedly connected to a pumping connecting rod (34).

9. The flame retardant polyurethane adhesive and the preparation method thereof according to claim 1, characterized in that: A discharge valve seat (35) is provided at the center of the top end of the flow guide frame (2), and anti-stick coatings (36) are provided at both ends of the inner wall of the center frame (1).

10. A flame retardant polyurethane adhesive and a preparation method thereof according to claim 9, characterized in that: A guide cone groove (37) is provided between the anti-stick coatings (36), and a mixing ring grid (38) is provided at the center of the inner wall of the guide cone groove (37).

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