Vacuum stirring device for epoxy resin production

Abstract

The utility model relates to the technical field of epoxy resin production, in particular to a vacuum stirring device for epoxy resin production, which comprises a barrel and a barrel cover for vacuumizing, a rotating rod is rotatably arranged at the center of the bottom of the barrel cover, and a stirring component is axially and slidably arranged on the outer surface of the rotating rod through an elastic telescopic component. A plurality of extrusion pieces used for controlling the stirring assembly to axially slide downwards are fixedly arranged at the bottom of the barrel cover, the rotating rod is hollow, and an absorption assembly used for extracting materials on the bottom layer is arranged at the position, close to the bottom end, of the rotating rod. By arranging the elastic telescopic assembly, the stirring assembly, extrusion pieces and an absorption assembly, after a sleeve rotates by a circle along with a rotating rod, the sleeve and stirring blades can slide up and down in a reciprocating manner for multiple times by utilizing the multiple extrusion pieces, so that the movement tracks of the stirring blades are increased, and the stirring effect on epoxy resin can be improved; the connecting rod is used for controlling the piston piece to slide up and down in the rotating rod in a reciprocating mode, and epoxy resin on the bottom layer can be guided to the upper layer.

Description

Technical Field

[0001] The utility model relates to the technical field of epoxy resin production, in particular to a vacuum stirring device for epoxy resin production. Background Technique

[0002] Epoxy resin is a kind of polymer, which refers to the general name of a class of polymers containing more than two epoxy groups in the molecule. Due to the chemical activity of the epoxy group, it can be ring-opened by a variety of compounds containing active hydrogen and cured and crosslinked to form a network structure. Therefore, it is a thermosetting resin, and a vacuum stirring device is often needed during the processing of epoxy resin.

[0003] A vacuum stirring device for high-performance epoxy resin production disclosed in Chinese Patent Publication No. CN217511737U. In this vacuum stirring device for high-performance epoxy resin production, the rotation of the stirrer with a spiral structure drives the resin to be stirred, and during the stirring process, the resin is heated by three electric heating tubes to ensure that the resin maintains good fluidity to improve the stirring effect.

[0004] However, compared with the existing technologies in the related field, a stirring shaft and blades are usually used for stirring, and the stirring effect is not good. The epoxy resin at the bottom layer is difficult to be lifted up, reducing the use efficiency of the stirring device and unable to ensure the uniform stirring of the epoxy resin. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the shortcomings of the existing technology, solve the problems mentioned in the background technique, and provide a vacuum stirring device for epoxy resin production.

[0006] The purpose of the utility model is realized through the following technical solutions: A vacuum stirring device for epoxy resin production includes a cylinder body and a cylinder cover for vacuum pumping. A rotating rod is rotatably provided at the center of the bottom of the cylinder cover. An elastic telescopic component is axially slidably provided on the outer surface of the rotating rod with a stirring component. A plurality of pressing components for controlling the axial downward sliding of the stirring component are fixedly provided at the bottom of the cylinder cover. The rotating rod is hollow, and an absorption component for extracting the bottom layer material is provided at a position near the bottom end of the rotating rod; the stirring component includes a sleeve slidably matched with the rotating rod, and a plurality of stirring blades are fixedly provided on the outer surface of the sleeve; the absorption component includes a piston member slidably provided inside the rotating rod, and two connecting rods are symmetrically fixedly provided on the outer surface of the piston member, and both connecting rods are fixedly connected with the sleeve. A plurality of feeding holes are opened in the rotating rod above the piston member, and a plurality of discharging holes are opened at a position near the top end of the rotating rod.

[0007] Preferably, the shape of the pressing component is arc-shaped, the stirring blades are spiral-shaped, and rollers matched with the pressing component are rotatably provided at positions near the top of the stirring blades.

[0008] Preferably, the elastic telescopic assembly includes a chute formed on the outer surface of the rotating rod. A screw is threadedly connected to the position of the sleeve near the top of the chute, and the screw is cooperatively connected to the chute through an elastic member.

[0009] Preferably, the connecting rods are all in an L shape, and movable grooves are formed at the positions of the rotating rod corresponding to the connecting rods.

[0010] Preferably, chamfers are formed at the entrances of the feed holes, and by setting the chamfers, the cross-sectional shape of the feed holes is an isosceles trapezoid.

[0011] Preferably, a motor is fixedly installed at the center of the top of the cylinder cover. The output end of the motor penetrates through the cylinder cover and is cooperatively connected to the top end of the rotating rod. A vacuum extraction pipe and a pressure monitoring member are fixedly installed on the top of the cylinder cover, and a discharge pipe is provided on one side of the cylinder body near the bottom.

[0012] Beneficial effects:

[0013] For the vacuum stirring device for epoxy resin production, by setting the elastic telescopic assembly, the stirring assembly, the extrusion member and the absorption assembly, with the multiple extrusion members provided, after the sleeve rotates one week along with the rotating rod, the sleeve and the stirring blades can perform multiple up and down reciprocating slides, so as to increase the movement track of the stirring blades, thereby improving the stirring effect on epoxy resin. By using the connecting rod to control the piston member to perform up and down reciprocating slides inside the rotating rod, the epoxy resin at the bottom layer can be guided to the upper layer, so that the stirring blades can fully stir the epoxy resin and ensure that the epoxy resin is stirred evenly. Description of the drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is a structural schematic diagram of the present invention;

[0016] Figure 2 is a state schematic diagram when the cylinder cover and the cylinder body of the present invention are separated;

[0017] Figure 3 is a state schematic diagram when the roller of the present invention is not cooperated with the extrusion member;

[0018] Figure 4 is a state schematic diagram when the roller of the present invention is cooperated with the extrusion member;

[0019] Figure 5 is a structural schematic diagram of the stirring assembly of the present invention;

[0020] Figure 6 This is a schematic diagram of the state of the sleeve of the present utility model before sliding downward;

[0021] Figure 7 For the present utility model Figure 6 A magnified schematic diagram of the structure at position A in it;

[0022] Figure 8 This is a schematic diagram of the state of the sleeve of the present utility model after sliding downward.

[0023] In the figure: 1, cylinder body; 2, cylinder cover; 3, rotating rod; 301, feed hole; 302, discharge hole; 303, movable groove; 4, elastic telescopic component; 401, sliding groove; 402, screw; 403, elastic member; 5, stirring component; 501, sleeve; 502, stirring blade; 5021, roller; 6, extrusion part; 7, absorption component; 701, piston part; 702, connecting rod; 8, motor; 9, vacuum extraction pipe; 10, air pressure monitoring part; 11, discharge pipe. Specific embodiments

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0025] The additional aspects and advantages of the present utility model will be further given in the following description in conjunction with the drawings, and some will become obvious from the following description or be understood through the practice of the present utility model.

[0026] Such as Figures 1 to 8 As shown, a vacuum stirring device for epoxy resin production includes a cylinder body 1 and a cylinder cover 2 for vacuum extraction. A rotating rod 3 is rotatably provided at the center of the bottom of the cylinder cover 2. A stirring component 5 is axially slidably provided on the outer surface of the rotating rod 3 through an elastic telescopic component 4. A plurality of extrusion parts 6 for controlling the downward axial sliding of the stirring component 5 are fixedly provided at the bottom of the cylinder cover 2. The rotating rod 3 is hollow, and an absorption component 7 for extracting the bottom layer of materials is provided at a position near the bottom end of the rotating rod 3.

[0027] As a preferred technical solution of the present utility model, as Figures 3 to 8As shown in the figure, the stirring assembly 5 includes a sleeve 501 that is slidably fitted with the rotating rod 3. A plurality of stirring blades 502 are fixedly provided on the outer surface of the sleeve 501. By using the plurality of pressing members 6 provided, after the sleeve 501 rotates one week with the rotating rod 3, the sleeve 501 and the stirring blades 502 can perform multiple up-and-down reciprocating slides, so as to increase the movement trajectory of the stirring blades 502, thereby improving the stirring effect on the epoxy resin.

[0028] As a preferred technical solution of the present utility model, as Figures 6 to 8 shown in the figure, the absorption assembly 7 includes a piston member 701 slidably arranged inside the rotating rod 3. Two connecting rods 702 are symmetrically and fixedly provided on the outer surface of the piston member 701. Both of the two connecting rods 702 are fixedly connected to the sleeve 501. A plurality of feed holes 301 are provided in the rotating rod 3 above the piston member 701, and a plurality of discharge holes 302 are provided at a position near the top of the rotating rod 3, which can guide the epoxy resin at the bottom layer to the upper layer, so that the stirring blades 502 can fully stir the epoxy resin to ensure uniform stirring of the epoxy resin.

[0029] As a preferred technical solution of the present utility model, as Figures 2 to 5 shown in the figure, the shape of the pressing member 6 is arc-shaped, the stirring blades 502 are spiral-shaped, and rollers 5021 that cooperate with the pressing member 6 are rotatably provided at positions near the top of the stirring blades 502. By using the provided rollers 5021, hard contact between the stirring blades 502 and the pressing member 6 can be avoided.

[0030] As a preferred technical solution of the present utility model, as Figures 3 to 8 shown in the figure, the elastic telescopic assembly 4 includes a chute 401 opened on the outer surface of the rotating rod 3. A screw 402 is threadedly connected to a position near the top of the chute 401 of the sleeve 501. The screw 402 and the chute 401 are cooperatively connected through an elastic member 403. When the roller 5021 rolls onto the pressing member 6, the stirring blade 502 will cause the sleeve 501 to slide downward, and at the same time, the screw 402 will compress the elastic member 403 into a state of storing energy. When the roller 5021 separates from the pressing member 6, the elastic member 403 will release its elastic force, causing the screw 402 to drive the sleeve 501 and the stirring blades 502 to slide upward.

[0031] As a preferred technical solution of the present utility model, as Figure 5 and Figure 6 shown in the figure, the shapes of the connecting rods 702 are all L-shaped, and movable grooves 303 are provided at positions corresponding to the connecting rods 702 on the rotating rod 3. By using the provided movable grooves 303, the stability of the sliding of the connecting rods 702 and the piston member 701 can be improved.

[0032] As a preferred technical solution of the present utility model, as Figures 5 to 8As shown in the figure, chamfers are formed at the entrances of the feeding holes 301. By setting the chamfers, the cross-sectional shape of the feeding holes 301 is an isosceles trapezoid. By using the feeding holes 301 with an isosceles trapezoid cross-sectional shape, the amount of epoxy resin entering the rotating rod 3 can be increased, so that most of the epoxy resin can be pushed out from the discharge holes 302 of the rotating rod 3.

[0033] As a preferred technical solution of the present utility model, as Figure 1 and Figure 2 shown in the figure, a motor 8 is fixedly installed at the center of the top of the cylinder cover 2. The output end of the motor 8 penetrates through the cylinder cover 2 and is cooperatively connected with the top end of the rotating rod 3. A vacuum extraction pipe 9 and a pressure monitoring member 10 are fixedly installed on the top of the cylinder cover 2. A discharge pipe 11 is opened on one side of the cylinder body 1 near the bottom. By using the provided vacuum extraction pipe 9 and pressure monitoring member 10, when stirring is required, the air inside the cylinder body 1 can be extracted through the vacuum extraction pipe 9, so that the inside of the cylinder body 1 is in a vacuum state. At the same time, the pressure monitoring member 10 can be used to monitor in real time whether the inside of the cylinder body 1 is in a vacuum state.

[0034] The working process is as follows:

[0035] S1. When in use, the rotating rod 3 is controlled to rotate by the motor 8. Then, by using the cooperation between the screw 402 and the sliding groove 401, the sleeve 501 can rotate with the rotating rod 3. When the sleeve 501 rotates, the plurality of stirring blades 502 can stir the epoxy resin.

[0036] S2. When the sleeve 501 drives the plurality of stirring blades 502 to rotate, by using the cooperation between the roller 5021 and the pressing member 6, when the roller 5021 rolls onto the pressing member 6, the stirring blade 502 will cause the sleeve 501 to slide downward. At the same time, the screw 402 will compress the elastic member 403 into a state of storing energy. When the roller 5021 separates from the pressing member 6, the elastic member 403 will release the elastic force, causing the screw 402 to drive the sleeve 501 and the stirring blade 502 to slide upward.

[0037] S3. By using the provided plurality of pressing members 6, after the sleeve 501 rotates one week with the rotating rod 3, the sleeve 501 and the stirring blade 502 can perform multiple up-and-down reciprocating slides, so as to increase the movement trajectory of the stirring blade 502, thereby improving the stirring effect on the epoxy resin.

[0038] S4. When the sleeve 501 and the stirring blade 502 slide up and down reciprocally, the connecting rod 702 can control the piston member 701 to slide up and down reciprocally inside the rotating rod 3. When the piston member 701 slides downward, the suction force generated by the piston member 701 allows the epoxy resin to enter the inside of the rotating rod 3 through the feed hole 301. When the piston member 701 slides upward, the piston member 701 can push the epoxy resin out of the discharge hole 302 of the rotating rod 3, so as to be able to guide the epoxy resin at the bottom layer to the upper layer, enabling the stirring blade 502 to fully stir the epoxy resin and ensuring that the epoxy resin can be stirred evenly.

[0039] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A vacuum stirring device for epoxy resin production, characterized in that: It includes a cylinder body (1) and a cylinder cover (2) for evacuating. At the center of the bottom of the cylinder cover (2), a rotating rod (3) is rotatably provided. Axially slidably provided on the outer surface of the rotating rod (3) through an elastic telescopic assembly (4) is a stirring assembly (5). Fixed to the bottom of the cylinder cover (2) are a number of pressing members (6) for controlling the downward axial sliding of the stirring assembly (5). The rotating rod (3) is hollow, and at a position near the bottom end of the rotating rod (3), an absorption assembly (7) for extracting bottom-layer materials is provided; The stirring assembly (5) includes a sleeve (501) slidably engaged with the rotating rod (3). Fixed to the outer surface of the sleeve (501) are a number of stirring blades (502); The absorption assembly (7) includes a piston member (701) slidably disposed inside the rotating rod (3). Symmetrically fixed to the outer surface of the piston member (701) are two connecting rods (702), and both of the two connecting rods (702) are fixedly connected to the sleeve (501). At a position above the piston member (701) on the rotating rod (3), a number of feed holes (301) are provided. At a position near the top end of the rotating rod (3), a number of discharge holes (302) are provided.

2. The vacuum stirring device for epoxy resin production according to claim 1, characterized in that: The shape of the pressing member (6) is arc-shaped, the stirring blades (502) are spiral-shaped, and at a position near the top of the stirring blades (502), rollers (5021) engaged with the pressing member (6) are rotatably provided.

3. A vacuum stirring device for epoxy resin production according to claim 1, characterized in that: The elastic telescopic assembly (4) includes a chute (401) provided on the outer surface of the rotating rod (3). Threadedly connected to a position near the top end of the chute (401) on the sleeve (501) is a screw (402), and the screw (402) is cooperatively connected to the chute (401) through an elastic member (403).

4. A vacuum stirring device for epoxy resin production according to claim 1, characterized in that: The shapes of the connecting rods (702) are both L-shaped, and at positions corresponding to the connecting rods (702) on the rotating rod (3), moving grooves (303) are provided.

5. A vacuum stirring device for epoxy resin production according to claim 1, characterized in that: At the entrance of each of the feed holes (301), a chamfer is formed. By providing the chamfer, the cross-sectional shape of the feed hole (301) is an isosceles trapezoid.

6. The vacuum stirring device for epoxy resin production according to claim 1, characterized in that: Fixedly installed at the center of the top of the cylinder cover (2) is a motor (8). The output end of the motor (8) penetrates through the cylinder cover (2) and is cooperatively connected to the top end of the rotating rod (3). Fixedly installed on the top of the cylinder cover (2) are an evacuation pipe (9) and a pressure monitoring member (10). On one side near the bottom of the cylinder body (1), a discharge pipe (11) is provided.

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