Metering and mixing device for composite raw materials

By designing composite material raw materials for metering mixing devices, the proportion of materials added in the production of glass fiber composite materials is inaccurate and unpleasant mixed mixing in the production of glass fiber composite materials. Essence

CN222406623UActive Publication Date: 2025-01-28SHANGHAI LONGYIN INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202421230353.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-01-28
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

During the production process of glass fiber composite materials, when workers add different forms of materials to the container, the proportion of each material is often inaccurate, and the materials are not fully mixed, which affects the effect of glass fiber impregnating resin glue, and then Influences the performance of composite profiles.

Method used

A metering mixture device is designed with a composite material raw material, including the first feed component for quantitative transport liquid material. The second feed component is used for quantitative transportation solid material. Full mix of solid material.

Benefits of technology

The quantitative injection and adequate and even mixing of the material are realized, improved the performance of composite material profiles, saved manual investment, and reduced costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a metering and mixing device for composite raw materials, which comprises a first feeding component, a second feeding component and a third feeding component, the first feeding component comprises a first charging barrel, a trough, a feeding bin and a push plate, the trough is arranged in the first charging barrel, the feeding bin is integrally connected to the outer side of the first charging barrel and communicated with the trough, and the push plate is movably arranged in the trough; the second feeding assembly comprises a second charging barrel, a moving plate movably arranged at the bottom of the second charging barrel, a transition barrel integrally connected to the bottom of the moving plate and a transition groove penetrating through the moving plate and the transition barrel; and a mixing assembly. The quantitative filling of the materials can be realized while the addition of the materials in different forms is met, and the materials in different forms are fully and uniformly mixed when being injected into the container, so that the effect of finished products is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of glass fiber manufacturing, and in particular relates to a metering and mixing device for composite material raw materials. Background Art

[0002] Fiber reinforced composites are composite materials formed by winding, molding or pultrusion of reinforcing fiber materials, such as glass fiber, carbon fiber, aramid fiber, etc., with matrix materials. According to the different reinforcing materials, common fiber reinforced composites are divided into glass fiber reinforced composites (GFRP), carbon fiber reinforced composites (CFRP) and aramid fiber reinforced composites (AFRP).

[0003] Glass fiber is a filament drawn from molten glass quickly. It can be divided into alkali, alkali-free, medium alkali and special glass fibers, such as high silica and quartz fibers, according to the raw material components. Commonly used glass fiber composite materials generally refer to resin (such as epoxy resin, phenolic resin, unsaturated polyethylene resin, etc.) based composite materials, which can be formed by hand lay-up, winding, pressing and other molding processes, or injection and pultrusion molding processes. Glass fiber reinforced composite materials can be widely used in manual machinery, chemical industry, transportation and other fields due to their light weight, corrosion resistance, insulation and other characteristics.

[0004] The pultrusion process of composite material profiles is to form and solidify continuous fiber composite materials of unlimited length by extruding continuous glass fiber bundles, tapes or cloths impregnated with resin glue under the action of traction, and continuously produce continuous fiber composite materials of unlimited length (different structures of extrusion dies can be selected according to actual needs to obtain composite material profiles with different cross-sectional shapes). Figure 1 As shown, various liquid and / or solid additives are usually added to the impregnation resin glue. However, it is found in the production process that when workers add materials of different forms into the container, the proportion of each material added is often inaccurate, and the materials are not fully mixed before being put into the mold, which will affect the effect of the glass fiber impregnation resin glue, and further affect the performance of the composite material profile. Utility Model Content

[0005] The utility model aims to provide a metering mixing device for composite material raw materials in order to overcome the problems in the prior art that the material adding ratio is inaccurate and the material is put into the mold without being fully mixed, which will affect the effect of glass fiber impregnation resin glue.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a metering and mixing device for composite material raw materials, which comprises:

[0007] A first feeding assembly, the first feeding assembly comprising a first barrel, a material trough provided in the first barrel, a feeding bin integrally connected to the outside of the first barrel and connected to the material trough, and a push plate movably provided in the material trough;

[0008] A second feeding assembly, the second feeding assembly comprising a second barrel, a moving plate movably disposed at the bottom of the second barrel, a transition barrel integrally connected to the bottom of the moving plate, and a transition groove penetrating the moving plate and the transition barrel;

[0009] A mixing assembly, the mixing assembly includes a mixing barrel, a stirring shaft rotatably arranged in the mixing barrel, and a stirring part arranged on the stirring shaft at intervals, the discharge port of the first barrel is connected to the first feed port of the mixing barrel, and the discharge port of the transition barrel is connected to the second feed port of the mixing barrel.

[0010] Optimally, the first feeding assembly also includes a base plate, a push cylinder fixed on the top of the base plate, a push rod fixed on one side of the push plate, a synchronization plate connecting the push cylinder and the push rod, and a sealing mechanism arranged between the push plate and the first barrel.

[0011] Optimally, the first feeding assembly also includes a fixed plate fixed on the top of the base plate, a guide sleeve embedded in the synchronization plate, a guide column passing through the guide sleeve, a first valve arranged at the bottom of the feed bin, and a second valve arranged at the first barrel outlet, and the guide column is fixed between the fixed plates.

[0012] Optimally, the sealing mechanism includes an outer groove formed on the inner side wall of the first barrel, an inner groove formed on the outer side wall of the push plate, and a sealing ring disposed between the outer groove and the inner groove.

[0013] Optimally, the second feeding assembly further comprises a material collecting portion integrally connected to the bottom of the second barrel, a material dropping portion integrally connected to the bottom of the material collecting portion, a boss fixed to the material dropping portion, a support frame fixed to the boss, and a buckle plate rotatably arranged at the bottom of the transition barrel;

[0014] When the transition tube moves to overlap with the blanking portion, the buckle plate is buckled on the bottom of the transition tube;

[0015] When the transition tube moves to be offset from the blanking portion, the buckle plate pops open.

[0016] Optimally, the support frame includes a first clamping plate fixed on the top of the boss, a side plate integrally connected to the outside of the first clamping plate, a baffle integrally connected to the bottom of the side plate, a second clamping plate integrally connected to the opposite side of the side plate, and a first clamping slot arranged between the first clamping plate and the second clamping plate, and the boss is clamped in the first clamping slot.

[0017] Optimally, the support frame further comprises a third clamping plate integrally connected to the opposite side of the side plate and a second clamping slot arranged between the second clamping plate and the third clamping plate, and the movable plate is clamped in the second clamping slot.

[0018] Optimally, the mixing assembly also includes a first material receiving plate and a second material receiving plate obliquely arranged on the top of the mixing barrel, a first material receiving trough passing through the first material receiving plate, and a second material receiving trough passing through the second material receiving plate, the discharge port of the first barrel is connected to the first material receiving trough, and the discharge port of the transition barrel is connected to the second material receiving trough.

[0019] Optimally, the mixing assembly further comprises a discharge portion integrally connected to the bottom of the mixing barrel and a third valve disposed at the bottom of the discharge portion.

[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] The utility model discloses a metering mixing device for composite material raw materials, which injects a quantitative liquid material into a mixing component through a first feeding component, injects a quantitative solid material into the mixing component through a second feeding component, and finally discharges the material from a discharging portion after being fully stirred and mixed by the mixing component, thereby meeting the addition of materials in different forms and realizing quantitative filling of materials. Moreover, materials in different forms are fully and evenly mixed when being injected into a container, thereby improving the effect of the finished product, saving labor input, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the process of composite material production;

[0023] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the first feeding assembly of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the first feeding assembly of the utility model from another angle;

[0026] Figure 5 It is a partial cross-sectional view of the first feed assembly of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the second feeding assembly of the utility model;

[0028] Figure 7 This is a schematic structural diagram of the second feeding assembly of the utility model from another angle;

[0029] Figure 8It is a cross-sectional view of the second feed assembly of the utility model;

[0030] Fig. 9 It is a structural schematic diagram of the hybrid component of the utility model;

[0031] Fig.10 It is a cross-sectional view of the mixing assembly of the utility model;

[0032] Description of reference numerals:

[0033] 1. First feed assembly; 11. Bottom plate; 12. Barrel fixing plate; 13. First barrel; 14. Material trough; 15. Feed bin; 16. First valve; 17. Second valve; 18. Push plate; 19. External groove; 110. Internal groove; 111. Sealing ring; 112. Push rod; 113. Synchronous plate; 114. Cylinder fixing plate; 115. Push cylinder; 116. Guide sleeve; 117. Guide column; 118. Fixing plate;

[0034] 2. Second feeding assembly; 21. Second barrel; 22. Collecting part; 23. Blanking part; 24. Boss; 25. Side plate; 26. Baffle; 27. First clamping plate; 28. Second clamping plate; 29. ​​Third clamping plate; 210. First clamping slot; 211. Second clamping slot; 212. Moving plate; 213. Transition barrel; 214. Transition slot; 215. Buckle plate;

[0035] 3. Mixing assembly; 31. Mixing barrel; 32. First receiving plate; 33. First receiving trough; 34. Second receiving plate; 35. Second receiving trough; 36. Stirring shaft; 37. Stirring part; 38. Discharging part; 39. Third valve. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0037] like Figure 2 As shown, the metering and mixing device for composite material raw materials of the utility model comprises a first feeding component 1, a second feeding component 2 and a mixing component 3. The first feeding component 1 is used for quantitatively conveying liquid materials, and the second feeding component 2 is used for quantitatively conveying solid materials (powder or granular materials). The mixing component 3 is arranged below the first feeding component 1 and the second feeding component 2, and is used to stir and mix the liquid material and the solid material evenly, and then inject them into the container (the number of the first feeding component 1 or the second feeding component 2 can be increased according to the type of the actual added material).

[0038] like Figure 3 , 4, which is a schematic diagram of the structure of the first feed assembly 1, the first feed assembly 1 includes a bottom plate 11, a barrel fixing plate 12, a first barrel 13, a trough 14, a feed bin 15, a first valve 16, a second valve 17, a push plate 18, a sealing mechanism, a push rod 112, a synchronous plate 113, a cylinder fixing plate 114, a push cylinder 115, a guide sleeve 116, a guide column 117 and a fixing plate 118. The bottom plate 11 is fixed to the processing bracket by screw fastening, and there are at least two barrel fixing plates 12, which are vertically fixed to the top of the bottom plate 11 to support and fix the first barrel 13.

[0039] An arc-shaped groove is provided on one side of the barrel fixing plate 12 away from the bottom plate 11. When fixing the first barrel 13, the first barrel 13 is first placed in the arc-shaped groove, and then fixed by welding. By providing the arc-shaped groove on the barrel fixing plate 12, the contact area with the first barrel 13 is increased, and the first barrel 13 is prevented from shaking when pushing the liquid material.

[0040] The material trough 14 is provided in the first barrel 13 for carrying the liquid material to be injected. The feed bin 15 is fixed at the top of the first barrel 13 (i.e., the side of the first barrel 13 away from the bottom plate 11) and is connected to the material trough 14. The feed bin 15 is funnel-shaped to facilitate the injection of the liquid material. A first valve 16 is installed at the bottom of the feed bin 15. When the liquid material is injected into the first barrel 13, the first valve 16 is used to start or close the discharge port of the feed bin 15, thereby realizing quantitative injection of the liquid material.

[0041] The push plate 18 is circular and is disposed in the material trough 14. The push plate 18 is moved to inject the liquid material in the first barrel 13 into the mixing assembly 3 below. A second valve 17 is disposed at the discharge port of the first barrel 13. The second valve 17 is opened when the liquid material needs to be injected into the mixing assembly 3, and is closed when the liquid material needs to be injected into the first barrel 13.

[0042] like Figure 5 As shown, when the push plate 18 pushes the liquid material forward, in order to avoid leakage of the liquid material, which may cause problems in the mixing ratio of the mixing assembly 3, a sealing mechanism is provided between the push plate 18 and the first barrel 13. The sealing mechanism includes an outer groove 19, an inner groove 110 and a sealing ring 111. The outer groove 19 is provided on the inner side wall of the first barrel 13, and the inner groove 110 is provided on the outer side wall of the push plate 18 and matches the position of the outer groove 19. The sealing ring 111 is provided between the outer groove 19 and the inner groove 110, and the gap between the push plate 18 and the first barrel 13 is blocked by the elastic deformation of the sealing ring 111.

[0043] A push rod 112 is fixed to the outside of the push plate 18, and the push rod 112 is connected to the driving mechanism, thereby pushing the push plate 18 to move, and pushing the liquid material in the first barrel 13 to the mixing assembly 3 below. The cylinder fixing plate 114 is vertically fixed to the top of the bottom plate 11, and the cylinder body of the push cylinder 115 is fixed on the cylinder fixing plate 114. The piston rod of the push cylinder 115 passes through the cylinder fixing plate 114 and is connected to the synchronous plate 113. The push rod 112 is fixed on the synchronous plate 113, and the push cylinder 115 pushes the push rod 112 to make a linear motion, thereby pushing the liquid material in the first barrel 13 to the mixing assembly 3 below.

[0044] The fixed plate 118 is vertically fixed on the top of the bottom plate 11 and is located on both sides of the synchronous plate 113. The guide sleeve 116 is embedded in the synchronous plate 113. The guide column 117 passes through the guide sleeve 116 and is fixed between the fixed plates 118. By providing the guide column 117 and the guide sleeve 116, the stability of the synchronous plate 113 during movement is ensured, and the push rod 112 is prevented from tilting and excessively rubbing against the inner wall of the first barrel 13, thereby preventing the leakage of the liquid material.

[0045] like Figure 6-8 As shown, the second feeding assembly 2 includes a second barrel 21, a material collecting portion 22, a material dropping portion 23, a boss 24, a fixing frame, a movable plate 212, a transition barrel 213, a transition groove 214 and a buckle plate 215. The second barrel 21 is vertically fixed on the processing bracket by an aluminum profile, and the material collecting portion 22 is integrally connected to the bottom of the second barrel 21, and the material collecting portion 22 is funnel-shaped, which facilitates the falling of solid materials (powder or granular materials) in the second barrel 21.

[0046] The blanking part 23 is integrally connected to the bottom of the collecting part 22, and the quantitative transition of the solid material is completed through the cooperation between the blanking part 23 and the transition tube 213. The boss 24 is fixed on the blanking part 23, and the fixing frame is fixed on the outside of the boss 24. The fixing frame is used to install the moving plate 212 and the transition tube 213, thereby realizing the quantitative transition of the solid material.

[0047] The fixing frame includes a side plate 25, a baffle 26, a first clamping plate 27, a second clamping plate 28, a third clamping plate 29, a first clamping groove 210 and a second clamping groove 211. The first clamping plate 27 has two pieces, which are fixed on the top of the boss 24, and the side plate 25 is integrally connected to the outer side of the first clamping plate 27. The second clamping plate 28 is integrally connected to the opposite side of the side plate 25 and is located below the first clamping plate 27. A first clamping groove 210 is formed between the first clamping plate 27 and the second clamping plate 28, and the boss 24 is clamped in the first clamping groove 210. By setting the first clamping plate 27 and the second clamping plate 28, it is ensured that the fixing frame and the boss 24 are firmly fixed, and the shaking of the fixing frame is avoided during the subsequent solid material transfer transition.

[0048] The third clamping plate 29 is integrally connected to the opposite side of the side plate 25 and is located below the second clamping plate 28. A second clamping groove 211 is formed between the second clamping plate 28 and the third clamping plate 29, and the movable plate 212 is clamped in the second clamping groove 211. A movable cylinder connected to the movable plate 212 is fixed on the bracket to push the movable plate 212 to move, thereby completing the transition of the solid material. The baffle 26 is fixed to the bottom of the two side plates 25. The baffle 26 cooperates with the buckle plate 215. The transition tube 213 receives and discharges the material while realizing the closing and opening of the buckle plate 215.

[0049] Since the moving plate 212 is clamped in the second clamping groove 211, the moving plate 212 will not deviate under the limiting effect of the second clamping groove 211 when the moving plate 212 moves. The upper surface of the moving plate 212 abuts against the lower surface of the blanking portion 23. When transferring the transition solid material, the blanking portion 23 is blocked by the moving plate 212 to prevent the material in the second barrel 21 from leaking.

[0050] The transition cylinder 213 is integrally connected to the bottom of the moving plate 212, and the transition groove 214 runs through the moving plate 212 and the transition cylinder 213. The moving cylinder drives the moving plate 212 to move until the axis of the transition cylinder 213 and the blanking part 23 coincide with each other. At this time, the material in the blanking part 23 falls downward into the transition groove 214, and the moving cylinder drives the moving plate 212 to move to close the discharge port of the blanking part 23, thereby realizing the quantitative transition of the solid material.

[0051] The pinch plate 215 is rotatably mounted on the bottom of the transition tube 213 to block the materials in the transition tube 213 and prevent the materials from spilling. The pinch plate 215 abuts against one side of the baffle 26, and a torsion spring is provided at the pivot connection between the pinch plate 215 and the transition tube 213. Under normal circumstances, the pinch plate 215 is flipped away from the transition tube 213 under the action of the torsion spring.

[0052] When it is necessary to receive the material, the moving cylinder drives the moving plate 212 to move toward the side close to the blanking part 23. At this time, under the limiting effect of the baffle 26, the buckle plate 215 turns toward one side of the transition tube 213 to buckle on the bottom of the transition tube 213. At this time, the transition tube 213 moves to coincide with the axis of the blanking part 23, and the material in the blanking part 23 falls downward into the transition groove 214.

[0053] Then the moving cylinder drives the moving plate 212 to move outward to close the discharge port of the blanking part 23, thereby realizing quantitative transition of the material. When the transition cylinder 213 moves to the outside of the fixed frame, the buckle plate 215 automatically opens under the action of the torsion spring due to the lack of limit, and the material in the transition cylinder 213 falls to the mixing assembly 3 below.

[0054] like Fig. 9 , 10, which is a schematic diagram of the structure of the mixing assembly 3. The mixing assembly 3 is arranged below the first feeding assembly 1 and the second feeding assembly 2, and is used to carry the liquid material delivered by the first feeding assembly 1 and the solid material delivered by the second feeding assembly 2, and inject them into the mold after being fully stirred. The mixing assembly 3 includes a mixing barrel 31, a first material receiving plate 32, a first material receiving trough 33, a second material receiving plate 34, a second material receiving trough 35, a stirring shaft 36, a stirring part 37, a discharge part 38 and a third valve 39.

[0055] The mixing barrel 31 is fixed on the bracket by aluminum profiles, the first material receiving plate 32 and the second material receiving plate 34 are fixed obliquely on the top of the mixing barrel 31, the first material receiving groove 33 penetrates the first material receiving plate 32 and is connected to the inside of the mixing barrel 31, and the second material receiving groove 35 penetrates the second material receiving plate 34 and is connected to the inside of the mixing barrel 31. The discharge port of the first barrel 13 is connected to the first material receiving groove 33, and the liquid material in the first barrel 13 falls into the mixing barrel 31 through the first material receiving groove 33. When the transition barrel 213 is pushed away from the fixed frame, the transition barrel 213 is connected to the second material receiving groove 35, and the solid material in the transition barrel 213 falls into the mixing barrel 31 below through the second material receiving groove 35.

[0056] The stirring shaft 36 is rotatably mounted in the mixing barrel 31. A plurality of stirring parts 37 are arranged at intervals along the axis direction of the stirring shaft 36. The stirring parts 37 are driven to rotate by the stirring shaft 36, so as to fully mix the liquid material and the solid material. The stirring part 37 is composed of a plurality of stirring rods arranged around the outside of the stirring shaft 36 to improve the stirring efficiency.

[0057] The discharge part 38 is integrally connected to the bottom of the mixing barrel 31 and is conical to facilitate the discharge of the mixed material. The third valve 39 is arranged at the bottom of the discharge part 38 to open or close the discharge port of the discharge part 38.

[0058] The working principle of the utility model is as follows:

[0059] First, a quantitative amount of liquid material is injected into the mixing component 3 through the first feeding component 1, and a quantitative amount of solid material is injected into the mixing component 3 through the second feeding component 2. After being fully mixed by the mixing component 3, it is discharged from the discharge part 38.

[0060] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A metering and mixing device for composite material raw materials, characterized in that: It includes: A first feeding assembly (1), comprising a first barrel (13), a trough (14) provided in the first barrel (13), a feeding bin (15) integrally connected to the outside of the first barrel (13) and connected to the trough (14), and a push plate (18) movably provided in the trough (14); A second feeding assembly (2), the second feeding assembly (2) comprising a second barrel (21), a moving plate (212) movably arranged at the bottom of the second barrel (21), a transition barrel (213) integrally connected to the bottom of the moving plate (212), and a transition groove (214) running through the moving plate (212) and the transition barrel (213); A mixing assembly (3), the mixing assembly (3) comprising a mixing barrel (31), a stirring shaft (36) rotatably arranged in the mixing barrel (31), and a stirring portion (37) arranged at intervals on the stirring shaft (36), the discharge port of the first barrel (13) being connected to the first feed port of the mixing barrel (31), and the discharge port of the transition barrel (213) being connected to the second feed port of the mixing barrel (31).

2. A metering and mixing device for composite material raw materials according to claim 1, characterized in that: The first feeding assembly (1) also includes a base plate (11), a pushing cylinder (115) fixed on the top of the base plate (11), a push rod (112) fixed on one side of the push plate (18), a synchronization plate (113) connecting the pushing cylinder (115) and the push rod (112), and a sealing mechanism arranged between the push plate (18) and the first barrel (13).

3. A metering and mixing device for composite material raw materials according to claim 2, characterized in that: The first feeding assembly (1) further comprises a fixing plate (118) fixed on the top of the bottom plate (11), a guide sleeve (116) embedded in the synchronization plate (113), a guide column (117) passing through the guide sleeve (116), a first valve (16) arranged at the bottom of the feeding bin (15), and a second valve (17) arranged at the discharge port of the first barrel (13), wherein the guide column (117) is fixed between the fixing plates (118).

4. A metering and mixing device for composite material raw materials according to claim 2, characterized in that: The sealing mechanism comprises an outer groove (19) formed on the inner side wall of the first barrel (13), an inner groove (110) formed on the outer side wall of the push plate (18), and a sealing ring (111) arranged between the outer groove (19) and the inner groove (110).

5. The metering and mixing device for composite material raw materials according to claim 1, characterized in that: The second feeding assembly (2) further comprises a material collecting portion (22) integrally connected to the bottom of the second barrel (21), a material dropping portion (23) integrally connected to the bottom of the material collecting portion (22), a boss (24) fixed to the material dropping portion (23), a support frame fixed to the boss (24), and a buckle plate (215) rotatably arranged at the bottom of the transition barrel (213); When the transition tube (213) moves to overlap with the blanking portion (23), the buckle plate (215) buckles on the bottom of the transition tube (213); When the transition tube (213) moves to be offset from the blanking portion (23), the buckle plate (215) pops open.

6. A metering and mixing device for composite material raw materials according to claim 5, characterized in that: The support frame comprises a first clamping plate (27) fixed on the top of the boss (24), a side plate (25) integrally connected to the outside of the first clamping plate (27), a baffle (26) integrally connected to the bottom of the side plate (25), a second clamping plate (28) integrally connected to the opposite side of the side plate (25), and a first clamping groove (210) arranged between the first clamping plate (27) and the second clamping plate (28), and the boss (24) is clamped in the first clamping groove (210).

7. A metering and mixing device for composite material raw materials according to claim 6, characterized in that: The support frame further comprises a third clamping plate (29) integrally connected to the opposite side of the side plate (25) and a second clamping groove (211) arranged between the second clamping plate (28) and the third clamping plate (29), and the movable plate (212) is clamped in the second clamping groove (211).

8. The metering and mixing device for composite material raw materials according to claim 1, characterized in that: The mixing assembly (3) further comprises a first material receiving plate (32) and a second material receiving plate (34) obliquely arranged at the top of the mixing barrel (31), a first material receiving trough (33) penetrating the first material receiving plate (32), and a second material receiving trough (35) penetrating the second material receiving plate (34); a material discharge port of the first material barrel (13) is connected to the first material receiving trough (33), and a material discharge port of the transition barrel (213) is connected to the second material receiving trough (35).

9. The metering and mixing device for composite material raw materials according to claim 1, characterized in that: The mixing assembly (3) further comprises a discharge portion (38) integrally connected to the bottom of the mixing cylinder (31) and a third valve (39) arranged at the bottom of the discharge portion (38).