A mechanical valve control matching structure and a mixer for epoxy resin casting material

Abstract

The present invention relates to the technical field of current transformers, and specifically to a mixer of a mechanical valve-controlled matching structure and epoxy resin casting material, comprising: a base, a mixing barrel being fixed on the base, and a fixed support member being fixed to a side wall of the mixing barrel; a heating tank being fixed on the fixed support member, and a drying tank being also fixed on the fixed support member; a feeding assembly being arranged on the mixing barrel and connected to the heating tank and the drying tank, and a negative pressure assembly being arranged on the fixed support member; a stirring assembly being arranged in the mixing barrel; a trigger transmission mechanism being arranged in the mixing barrel and connected to the stirring assembly, and a conduction control mechanism connected to the trigger transmission mechanism being also arranged in the mixing barrel, and a movable plate being connected to the conduction control mechanism; a guide assembly being arranged on the conduction control mechanism and connected to the movable plate. The present invention can adaptively convey materials and adjust the pressure in the mixing barrel according to changes in the pressure in the mixing barrel.

Description

Technical Field

[0001] The invention relates to the technical field of current transformers, in particular to a mixer of a mechanical valve-controlled matching structure and an epoxy resin casting material. Background Art

[0002] The cast resin current transformer is made of a coil of wire that is protected and supported by casting insulating resin.

[0003] The resin casting process can be basically divided into four steps: mixing, casting, curing, and demolding. Mixing involves uniformly mixing the epoxy resin, filler, and curing agent to facilitate the chemical reaction. Mixing is divided into primary and secondary mixing. The primary mixing involves mixing the resin and filler, while the secondary mixing involves adding the curing agent to the primary mixing. The primary mixing ensures that the filler is fully impregnated with the resin. Because the reaction between epoxy resin and anhydride curing agent is exothermic, fillers are highly thermally conductive materials that can conduct the heat released by the reaction outward, preventing it from accumulating. This ensures uniform stress distribution within the casting and prevents sink marks.

[0004] Dehydration is mainly achieved by drying the filler, while degassing requires negative pressure degassing or defoaming during the mixing process. The initial negative pressure value of the mixing tank (predetermined negative pressure environment) should not be too high, otherwise the heated anhydride curing agent will vaporize at the beginning of the secondary mixing. However, the secondary mixing is an exothermic reaction, and the increase in internal pressure will offset part of the negative pressure, resulting in insufficient vacuum during the secondary mixing process. Summary of the Invention

[0005] The object of the present invention is to provide a mechanical valve-controlled matching structure and a mixer for epoxy resin casting material to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mechanical valve control matching structure, comprising:

[0008] A base, on which a mixing barrel is fixedly mounted, and a side wall of the mixing barrel is fixed with four fixed support members distributed equidistantly around the circumference;

[0009] A heating tank is fixedly mounted on two of the fixed support members and is symmetrically arranged, and a drying tank is also fixed on the fixed support member;

[0010] a feeding assembly, provided on the mixing barrel and connected to the heating tank and the drying tank, for conveying the materials in the heating tank and the drying tank into the mixing barrel, and a negative pressure assembly being provided on the fixed support member;

[0011] A stirring assembly is provided in the mixing barrel and is used to stir the materials in the mixing barrel;

[0012] It is characterized by further comprising:

[0013] a trigger transmission mechanism disposed in the mixing barrel and connected to the stirring assembly; a conduction control mechanism connected to the trigger transmission mechanism is further disposed in the mixing barrel; a movable plate is connected to the conduction control mechanism; the trigger transmission mechanism is capable of being actuated when the air pressure in the mixing barrel changes, thereby driving the movable plate to move in a vertical direction through the conduction control mechanism;

[0014] A guide assembly is provided on the conduction regulating mechanism and connected to the movable plate. The guide assembly can be activated when the conduction regulating mechanism moves, and drive the movable plate to rotate to adjust the coordination state between the movable plate and the feeding assembly and the negative pressure assembly.

[0015] As a further solution of the present invention: the feeding assembly includes a plurality of supporting sleeves fixedly mounted on the bottom of the heating tank and the drying tank and passing through the mixing barrel, wherein a delivery pipe passing through the heating tank and the drying tank is movably mounted in the supporting sleeve, and the delivery pipe is provided with a feeding trough;

[0016] It also includes a limit plate fixedly installed on the delivery pipe, the limit plate cooperates with the movable plate, and the delivery pipe and the support sleeve are sleeved with a spring that abuts against the limit plate.

[0017] As a further solution of the present invention: the negative pressure assembly includes a piston cylinder fixedly installed on the fixed support member, a piston is movably installed in the piston cylinder, a push rod is fixed on the piston and passes through the piston cylinder and the mixing barrel, the spring is sleeved on the push rod and the limit plate is fixed thereto.

[0018] As a further solution of the present invention: the stirring assembly includes a transmission rod rotatably installed in the mixing barrel, the transmission rod is connected to the trigger transmission mechanism, the transmission rod is connected to the motor output shaft fixedly installed on the mixing barrel, and a plurality of stirring blades equidistantly distributed around the circumference are fixed on the transmission rod.

[0019] As a further solution of the present invention: the trigger transmission mechanism includes a cavity opened in the transmission rod, and the side wall of the transmission rod is provided with a through hole and a slot connected to the cavity, the through holes are symmetrically arranged, and the transmission rod is provided with a driven component connected to the slot.

[0020] As a further solution of the present invention: the driven assembly includes a sealing sleeve movably mounted on the transmission rod, a sealing plate is fixed in the sealing sleeve and passes through the slot and is slidably and sealingly connected to the cavity, and active latch teeth are fixed on the outer wall of the sealing sleeve;

[0021] It also includes a rotating sleeve rotatably installed in the mixing barrel and sleeved on the transmission rod, the end of the rotating sleeve is fixed with a driven tooth that cooperates with the active tooth, and the rotating sleeve is connected to the conduction regulating mechanism.

[0022] As a further solution of the present invention: the conduction and regulation mechanism includes a guide groove opened on the outer wall of the rotating sleeve, a movable sleeve is movably mounted on the rotating sleeve, a protrusion slidingly connected to the guide groove is fixed on the inner wall of the movable sleeve, and a guide assembly connected to the movable plate is provided on the movable sleeve.

[0023] As a further solution of the present invention, the guide assembly includes a fixed sleeve fixedly installed in the mixing barrel and sleeved on the movable sleeve, the inner wall of the fixed sleeve is provided with a limiting groove, and the outer wall of the movable sleeve is fixed with a limiting rod engaged with the limiting groove;

[0024] It also includes a limiting sleeve rotatably mounted on the movable sleeve, and the limiting sleeve is fixedly connected to the movable plate.

[0025] As a further solution of the present invention: the guide assembly includes a plurality of first straight grooves, first oblique grooves, second straight grooves, and second oblique grooves that are opened on the outer wall of the fixed sleeve and are equidistantly distributed around the circumference, the two ends of the first oblique groove are connected to one end of the first straight groove and the second straight groove, the two ends of the second oblique groove are connected to the other end of the first straight groove and the second straight groove, and the movable plate is fixed with symmetrically arranged clamping columns, which extend into the first straight groove or the first oblique groove or the second straight groove or the second oblique groove, and can slide along the tracks of the first straight groove, the first oblique groove, the second straight groove, and the second oblique groove.

[0026] A mixer for epoxy resin casting material comprises the mechanical valve-controlled matching structure.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the present invention can effectively suppress the air gaps and bubbles inside and on the surface of the cast products, reduce internal stress, and prevent cracks. It is necessary to control the negative pressure environment in the mixing barrel. When mixing, the stirring component works and mixes the materials in the mixing barrel. At the same time, as the mixing continues, the mixing will continue to release heat, causing the pressure in the mixing barrel to increase. Under the action of pressure, the trigger transmission mechanism moves, and the trigger transmission mechanism also drives the conduction control mechanism to move, causing the movable plate to move in the vertical direction. When the movable plate moves to a position that cooperates with the feeding component, the feeding component can deliver the molten epoxy resin and the molten curing agent in the heating tank. When the material is sent to the mixing barrel, the movable plate will also drive the guide assembly to move. When the discharge is completed, the guide assembly will drive the movable plate to rotate. At this time, under the action of the conduction and regulation mechanism, the movable plate is controlled to move toward the initial position, and under the action of the guide assembly, the movable plate is controlled to move to the position cooperating with the negative pressure assembly. The conduction and regulation mechanism continues to move and drives the movable plate to move again, so that the negative pressure assembly moves. The negative pressure assembly will adsorb the gas in the mixing barrel, so that the air pressure in the mixing barrel is reduced, so as to reset the trigger transmission mechanism, and the feeding assembly and the negative pressure assembly stop moving. Under the action of the stirring assembly, the material is mixed again, and the above steps are repeated to continuously mix the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a structural schematic diagram of an embodiment of a mechanical valve-controlled matching structure and a mixer for epoxy resin casting material.

[0029] Figure 2 This is a structural schematic diagram from another angle of an embodiment of a mixer of a mechanical valve-controlled matching structure and epoxy resin casting material.

[0030] Figure 3 A schematic diagram of a half-section structure of a mixer for a mechanical valve-controlled matching structure and epoxy resin casting material in one embodiment.

[0031] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A.

[0032] Figure 5 The figure is a schematic diagram of the connection relationship between the trigger transmission mechanism, the conduction control mechanism, and part of the stirring assembly in one embodiment of a mixer for a mechanical valve-controlled matching structure and epoxy resin casting material.

[0033] Figure 6 Schematic diagram of the exploded structure of the feeding assembly in one embodiment of a mixer for a mechanical valve-controlled matching structure and epoxy resin casting material.

[0034] Figure 7Schematic diagram of the explosion structure of the negative pressure component in one embodiment of a mixer for a mechanical valve-controlled matching structure and epoxy resin casting material.

[0035] Figure 8 The present invention is a structural diagram of a partial trigger transmission mechanism and a conduction control mechanism in an embodiment of a mixer of a mechanical valve control matching structure and epoxy resin casting material.

[0036] Figure 9 This is a schematic diagram of the explosion structure of a partial trigger transmission mechanism and a partial conduction control mechanism in an embodiment of a mixer of a mechanical valve control matching structure and epoxy resin casting material.

[0037] Figure 10 The diagram is a schematic diagram of the explosion structure of a partial trigger transmission mechanism and a conduction control mechanism in an embodiment of a mixer of a mechanical valve control matching structure and epoxy resin casting material.

[0038] In the figure: 1. base; 2. mixing barrel; 3. fixed support member; 4. heating tank; 5. drying tank; 6. support sleeve; 7. conveying pipe; 8. feeding chute; 9. limit plate; 10. spring; 11. piston cylinder; 12. piston; 13. push rod; 14. motor; 15. transmission rod; 16. cavity; 17. through hole; 18. stirring blade; 19. slot; 20. sealing plate; 21. sealing sleeve; 22. active latch; 23. rotating sleeve; 24. guide groove; 25. driven latch; 26. movable sleeve; 27. protrusion; 28. limit sleeve; 29. ​​movable plate; 30. clamping column; 31. fixed sleeve; 32. first straight groove; 33. first inclined groove; 34. second straight groove; 35. second inclined groove. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0040] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0041] See also Figures 1 to 10In an embodiment of the present invention, a mechanical valve-controlled matching structure includes: a base 1, a mixing barrel 2, a fixed support member 3, a heating tank 4, a drying tank 5, a feeding assembly, a negative pressure assembly, a stirring assembly, a trigger transmission mechanism, a conduction control mechanism and a guide assembly, and a movable plate 29. In order to effectively suppress the air gaps and bubbles inside and on the surface of the cast product, reduce internal stress, and prevent cracks, it is necessary to control the negative pressure environment in the mixing barrel 2. Therefore, when mixing, the stirring assembly works and mixes the materials in the mixing barrel 2. At the same time, as the mixing continues, the mixing will continue to release heat, causing the pressure in the mixing barrel 2 to increase. Under the action of pressure, the trigger transmission mechanism moves, and the trigger transmission mechanism also drives the conduction control mechanism to move, causing the movable plate 29 to move in the vertical direction. When the movable plate 29 moves to the point where it is aligned with the feeding barrel When the components are in the coordinated position, the feeding component can transport the molten epoxy resin and the molten curing agent in the heating tank 4 to the mixing barrel 2, and the movable plate 29 will also drive the guide component to move. When the discharge is completed, the guide component will drive the movable plate 29 to rotate. At this time, under the action of the conduction and regulation mechanism, the movable plate 29 is controlled to move toward the initial position, and under the action of the guide component, the movable plate 29 is controlled to move to the coordinated position with the negative pressure component. The conduction and regulation mechanism continues to move and drives the movable plate 29 to move again, so that the negative pressure component moves. The negative pressure component will adsorb the gas in the mixing barrel 2, so that the air pressure in the mixing barrel 2 is reduced, so as to reset the trigger transmission mechanism, and the feeding component and the negative pressure component stop moving. Under the action of the stirring component, the material is mixed again, and the above steps are repeated to continuously mix the material.

[0042] The details are as follows, including:

[0043] A base 1, on which a mixing barrel 2 is fixedly mounted, and four fixed support members 3 equidistantly distributed around a circumference are fixed to the sidewall of the mixing barrel 2;

[0044] A heating tank 4 is fixedly mounted on two of the fixed support members 3 and is symmetrically arranged. A drying tank 5 is also fixed on the fixed support member 3.

[0045] See also Figure 1-Figure 3 、 Figure 6, a feeding assembly is provided on the mixing barrel 2 and connected to the heating tank 4 and the drying tank 5, and is used to transport the materials in the heating tank 4 and the drying tank 5 to the mixing barrel 2, and the feeding assembly includes a plurality of supporting sleeves 6 respectively fixedly mounted on the bottom of the heating tank 4 and the drying tank 5 and passing through the mixing barrel 2, and a conveying pipe 7 passing through the heating tank 4 and the drying tank 5 is movably installed in the supporting sleeve 6, and a feeding trough 8 is provided on the conveying pipe 7; it also includes a limiting plate 9 fixedly mounted on the conveying pipe 7, the limiting plate 9 cooperates with the movable plate 29, and the conveying pipe 7 and the supporting sleeve 6 are provided with a spring 10 that abuts against the limiting plate 9.

[0046] In detail, there are two heating tanks 4 and one drying tank 5. The heating tanks 4 are respectively filled with molten epoxy resin and molten curing agent, and the desiccant is filled with filler. Dehydration is mainly carried out by drying the filler, and degassing requires negative pressure degassing or defoaming during the mixing process. In the initial state, the mixing barrel 2 is in a negative pressure state. Since the reaction between the epoxy resin and the curing agent is an exothermic reaction, the pressure in the mixing barrel 2 will increase as the heat release proceeds, which will cause the curing agent to vaporize during the mixing process. Therefore, it is necessary to intermittently release the material into the mixing barrel 2 to ensure that the reaction rate remains within a certain range.

[0047] Preferably, in the initial state, the movable plate 29 is in a coordinated position with the limit plate 9 below the heating tank 4, and the spring 10 is in a compressed state, so that the conveying pipe 7 fixed with the limit plate 9 is located at the end of the stroke away from the heating tank 4, so that the feed chute 8 is located outside the heating tank 4, and the conveying pipe 7 is in a blocked state. When the material needs to be released, the movable plate 29 moves, driving the limit plate 9 to move, and the limit plate 9 will move toward the heating tank 4, thereby driving the conveying pipe 7 to move along the length direction of the support sleeve 6, so that the spring 10 is compressed, and the conveying pipe 7 will also drive the feed chute 8 to move. When the feed chute 8 enters the heating tank 4, the molten epoxy resin and molten curing agent in the heating tank 4 will enter the conveying pipe 7 through the feed chute 8 and be discharged into the mixing barrel 2. When the feeding is completed, the spring 10 is elastically released and drives the conveying pipe 7 to move through the limit plate 9, so that the feed chute 8 is separated from the heating tank 4, and the conveying pipe 7 is in a blocked state again.

[0048] See also Figure 1-Figure 3 、 Figure 7 A negative pressure assembly is provided on the fixed support member 3, and the negative pressure assembly includes a piston cylinder 11 fixedly mounted on the fixed support member 3, a piston 12 is movably mounted in the piston cylinder 11, a push rod 13 is fixed on the piston 12 and passes through the piston cylinder 11 and the mixing barrel 2, the push rod 13 is sleeved with the spring 10 and fixed with the limit plate 9.

[0049] It should be noted that two one-way valves are installed on the piston cylinder 11, one of which is connected to the mixing barrel 2 through a conduit, and the other one-way valve is connected to the external environment. After the material in the heating tank 4 is transported, the material in the drying tank 5 needs to be transported to the mixing barrel 2, and the negative pressure in the mixing barrel 2 is controlled to reduce the pressure in the mixing barrel 2. At this time, the movable plate 29 will rotate to a position that cooperates with the limit plate 9 below the drying tank 5. Under the action of the movable plate 29, the limit plate 9 is driven to move, thereby driving the delivery pipe 7 placed in the drying tank 5 to enter the drying tank 5, so as to transport the curing agent in the drying tank 5 to the mixing barrel 2. At the same time, the movable plate 29 will also drive the push rod 13 to move through the limit plate 9 and compress the spring 10. The push rod 13 will drive the piston 12 to move and suck the air in the mixing barrel 2 into the piston cylinder 11 through the conduit, so that the pressure in the mixing barrel 2 is reduced. When the drying tank 5 is discharged, the movable plate 29 is separated from the limit plate 9, and the spring 10 is elastically released, so that the limit plate 9 is reset and the piston 12 is controlled to reset. Under the action of the piston 12, the gas in the piston cylinder 11 is controlled to be discharged. Repeat the above steps to realize automatic discharge according to the reaction situation in the mixing barrel 2 and adjust the air pressure in the mixing barrel 2.

[0050] See also Figure 1-Figure 3 、 Figure 5 The stirring assembly is arranged in the mixing barrel 2 and is used to stir the materials in the mixing barrel 2. The stirring assembly includes a transmission rod 15 rotatably installed in the mixing barrel 2, and the transmission rod 15 is connected to the trigger transmission mechanism. The transmission rod 15 is connected to the output shaft of the motor 14 fixedly installed on the mixing barrel 2, and a plurality of stirring blades 18 equidistantly distributed on the circumference are fixed on the transmission rod 15.

[0051] Furthermore, when the material is added into the mixing barrel 2, the material needs to be mixed. At this time, the motor 14 works, driving the transmission rod 15 to rotate, thereby driving the stirring blade 18 to rotate. Under the action of the stirring blade 18, the material in the mixing barrel 2 is mixed. As the reaction proceeds, the pressure in the mixing barrel 2 will increase. Under the action of air pressure, the transmission mechanism is triggered to move, so as to control the movement of the movable plate 29 through the conduction and control mechanism, so as to automatically feed the material and adjust the pressure in the mixing barrel 2.

[0052] Also includes:

[0053] See also Figure 3-Figure 5 、 Figures 8-10, a trigger transmission mechanism is arranged in the mixing barrel 2 and connected to the stirring assembly, the trigger transmission mechanism includes a cavity 16 opened in the transmission rod 15, and the side wall of the transmission rod 15 is provided with a through hole 17 and a slot 19 connected to the cavity 16, the through holes 17 are symmetrically arranged, and a driven component connected to the slot 19 is provided on the transmission rod 15, wherein the driven component includes a sealing sleeve 21 movably mounted on the transmission rod 15, a sealing plate 20 that passes through the slot 19 and is slidingly sealed with the cavity 16 is fixed in the sealing sleeve 21, and an active tooth 22 is fixed on the outer wall of the sealing sleeve 21; it also includes a rotating sleeve 23 rotatably mounted in the mixing barrel 2 and sleeved on the transmission rod 15, the end of the rotating sleeve 23 is fixed with a driven tooth 25 that cooperates with the active tooth 22, and the rotating sleeve 23 is connected to the conduction control mechanism.

[0054] Furthermore, in the initial state, due to the low pressure in the mixing barrel 2, the sealing plate 20 is located at the end of the stroke on the side of the slot 19 toward the base 1. Under the action of the sealing plate 20, the cavity 16 is divided into two parts, and under the action of the sealing sleeve 21, the cavity 16 above the sealing plate 20 is in a blocked state, and the active latch 22 and the driven latch 25 are in a separated state. When the transmission rod 15 rotates, it drives the stirring blade 18 to rotate, so that the materials fully react with each other. As the materials react, the temperature in the mixing barrel 2 increases, so that the pressure in the mixing barrel 2 will increase, thereby increasing the pressure in the cavity 16. Under the action of the pressure, the sealing plate 20 is pushed to move away from the base 1, thereby driving the sealing sleeve 21 to move along the length direction of the slot 19, and the sealing sleeve 21 will also drive the active latch 22 to move. The movable plate 29 is driven by the piston 11 and the piston 12 is moved to the position where the movable plate 29 is moved, so as to move the material in the heating tank 4 and the drying tank 5 into the mixing barrel 2. At the same time, the piston 11 is used to reduce the pressure in the mixing barrel 2, so that the pressure in the cavity 16 is reduced, and the sealing plate 20 is reset to drive the sealing sleeve 21 to move, so that the active tooth 22 is separated from the driven tooth 25 again, ensuring that the movable plate 29 no longer moves. Under the action of the stirring blade 18, the added material is mixed again, and the above steps are repeated to ensure the effect of automatically adding material and adjusting the pressure according to the progress of the reaction.

[0055] See also Figure 3-Figure 5 、 Figures 8-10, the mixing barrel 2 is also provided with a conduction control mechanism connected to the trigger transmission mechanism, and a movable plate 29 is connected to the conduction control mechanism. The trigger transmission mechanism can be activated when the air pressure in the mixing barrel 2 changes, so as to drive the movable plate 29 to move in the vertical direction through the conduction control mechanism. The conduction control mechanism includes a guide groove 24 provided on the outer wall of the rotating sleeve 23, a movable sleeve 26 is movably mounted on the rotating sleeve 23, and a protrusion 27 slidably connected to the guide groove 24 is fixed on the inner wall of the movable sleeve 26. The movable sleeve 26 is provided with a guide assembly connected to the movable plate 29, wherein the guide assembly includes a fixed sleeve 31 fixedly mounted in the mixing barrel 2 and sleeved on the movable sleeve 26, a limiting groove is provided on the inner wall of the fixed sleeve 31, and a limiting rod engaged with the limiting groove is fixed on the outer wall of the movable sleeve 26; it also includes a limiting sleeve 28 rotatably mounted on the movable sleeve 26, and the limiting sleeve 28 is fixedly connected to the movable plate 29.

[0056] To elaborate, the guide groove 24 is formed by a combination of two spiral grooves, and the number of spiral turns of the spiral groove is half a turn, and the head and tail ends are connected to each other. In the initial state, the protrusion 27 is located at the end of the travel of the guide groove 24 toward the base 1, so that the movable plate 29 is located at the end of the travel in the direction away from the heating tank 4. At this time, the movable plate 29 and the limit plate 9 are in a separated state, the stirring blade 18 rotates, and the material is mixed. The pressure in the mixing barrel 2 will increase, causing the sealing plate 20 to move to control the active latch 22 to engage with the driven latch 25. , the rotating sleeve 23 will rotate synchronously with the transmission rod 15, and the rotating sleeve 23 will also drive the guide groove 24 to move. Under the action of the guide groove 24 and the protrusion 27, the movable sleeve 26 moves. Since the limit groove and the limit rod are slidably connected, the movable sleeve 26 moves along the length direction of the fixed sleeve 31. The movable sleeve 26 will also drive the limit sleeve 28 to move, thereby driving the movable plate 29 to move. When the movable plate 29 moves to the position abutting the limit plate 9, the material in the heating tank 4 is controlled to be transported to the mixing barrel 2. When the protrusion When the movable plate 29 moves to the end of the stroke of the guide groove 24 away from the base 1, the movable plate 29 moves to the end of the stroke. Under the action of the guide assembly, the movable plate 29 rotates a certain angle and separates from the limit plate 9. The rotating sleeve 23 continues to rotate and, under the action of the guide groove 24 and the protrusion 27, the movable plate 29 moves toward the base 1. When the movable plate 29 is reset, under the action of the guide assembly, the movable plate 29 rotates to a position where it cooperates with the other set of limit plates 9. The rotating sleeve 23 continues to rotate and, under the action of the guide groove 24 and the protrusion 27, the movable plate 29 moves toward the base 1. Under the action of the protrusion 27, the movable plate 29 is brought into contact with the limit plate 9, and the material in the drying tank 5 is transported to the mixing barrel 2. At the same time, the pressure in the mixing barrel 2 is reduced by controlling the piston cylinder 11. When the protrusion 27 moves again to the end of the travel on the side of the guide groove 24 away from the base 1, the movable plate 29 is separated from the limit plate 9 again until the movable plate 29 returns to the initial position. Under the action of the guide assembly, the movable plate 29 returns to the initial position, and the above steps are repeated to control the material feeding while adjusting the pressure in the mixing barrel 2.

[0057] See also Figure 3-Figure 5 、 Figures 8-10, a guide assembly is provided on the conduction regulating mechanism and connected to the movable plate 29, the guide assembly can be operated when the conduction regulating mechanism moves, and drive the movable plate 29 to rotate to adjust the cooperation state of the movable plate 29 with the feeding assembly and the negative pressure assembly, the guide assembly includes a plurality of first straight slots 32, first oblique slots 33, second straight slots 34, and second oblique slots 35 that are opened on the outer wall of the fixed sleeve 31 and are equidistantly distributed around the circumference, the two ends of the first oblique slot 33 are connected to one end of the first straight slot 32 and the second straight slot 34, and the two ends of the second oblique slot 35 are connected to the other end of the first straight slot 32 and the second straight slot 34, the movable plate 29 is fixed with symmetrically arranged clamping columns 30, the clamping columns 30 extend into the first straight slot 32 or the first oblique slot 33 or the second straight slot 34 or the second oblique slot 35, and can slide along the tracks of the first straight slot 32, the first oblique slot 33, the second straight slot 34, and the second oblique slot 35.

[0058] It should be noted that in the initial state, the clamping column 30 is located at the connection position of the first straight slot 32 and the second inclined slot 35. When the movable plate 29 moves, it drives the clamping column 30 to move along the length direction of the first straight slot 32. At this time, the movable plate 29 does not rotate and abuts against one set of limit plates 9, so that the material in the heating tank 4 is fed. When the clamping column 30 moves into the first inclined slot 33, it drives the movable plate 29 to rotate, thereby driving the limit sleeve 28 to rotate, so that the movable plate 29 is separated from the limit plate 9, and the spring 10 is elastically released, so that the conveying pipe 7 is blocked again. When the clamping column 30 moves to the connection position of the second straight slot 34 and the first inclined slot 33, the movable plate 2 9 moves to the end of the stroke away from the base 1. At this time, the movable plate 29 will move toward the base 1 and control the clamping column 30 to move along the length direction of the second straight slot 34. When the clamping column 30 moves into the second inclined slot 35, the movable plate 29 moves below the limit plate 9, and the movable plate 29 continues to rotate and moves to a position that cooperates with the limit plate 9 below the drying tank 5. When the movable plate 29 returns to the initial position, the clamping column 30 returns to the connection position between the first straight slot 32 and the second inclined slot 35, and repeats the above steps, thereby realizing automatic adjustment of the angle of the movable plate 29 according to the mixing situation in the mixing barrel 2 to control the feeding effect and the pressure in the mixing barrel 2.

[0059] A mixer for epoxy resin casting material comprises the mechanical valve-controlled matching structure.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mechanical valve control matching structure, comprising: A base (1), a mixing barrel (2) being fixedly mounted on the base (1), and four fixed support members (3) being fixed to the side wall of the mixing barrel (2) and distributed equidistantly around the circumference; A heating tank (4) is fixedly mounted on two of the fixed support members (3) and is symmetrically arranged. A drying tank (5) is also fixed on the fixed support member (3); a feeding assembly, arranged on the mixing barrel (2) and connected to the heating tank (4) and the drying tank (5), for conveying the materials in the heating tank (4) and the drying tank (5) into the mixing barrel (2); a negative pressure assembly being arranged on the fixed support member (3); A stirring assembly is arranged in the mixing barrel (2) and is used to stir the material in the mixing barrel (2); It is characterized by further comprising: A trigger transmission mechanism is provided in the mixing barrel (2) and is connected to the stirring assembly. A conduction control mechanism connected to the trigger transmission mechanism is also provided in the mixing barrel (2). A movable plate (29) is connected to the conduction control mechanism. The trigger transmission mechanism is capable of actuating when the air pressure in the mixing barrel (2) changes, so as to drive the movable plate (29) to move in a vertical direction through the conduction control mechanism. a guide assembly, arranged on the conduction regulating mechanism and connected to the movable plate (29), wherein the guide assembly is capable of operating when the conduction regulating mechanism moves, and driving the movable plate (29) to rotate, so as to adjust the matching state of the movable plate (29), the feeding assembly, and the negative pressure assembly; The guide assembly includes a plurality of first straight grooves (32), first oblique grooves (33), second straight grooves (34), and second oblique grooves (35) which are opened on the outer wall of the fixed sleeve (31) and are equidistantly distributed around the circumference. The two ends of the first oblique groove (33) are connected to one end of the first straight groove (32) and the second straight groove (34), and the two ends of the second oblique groove (35) are connected to the other end of the first straight groove (32) and the second straight groove (34). A symmetrically arranged clamping column (30) is fixed on the movable plate (29). The clamping column (30) extends into the first straight groove (32), the first oblique groove (33), the second straight groove (34), or the second oblique groove (35), and can slide along the tracks of the first straight groove (32), the first oblique groove (33), the second straight groove (34), and the second oblique groove (35).

2. A mechanical valve control matching structure according to claim 1, characterized in that: The feeding assembly comprises a plurality of supporting sleeves (6) respectively fixedly mounted on the bottom of the heating tank (4) and the drying tank (5) and passing through the mixing barrel (2); a delivery pipe (7) passing through the heating tank (4) and the drying tank (5) is movably mounted in the supporting sleeves (6); and a feeding trough (8) is provided on the delivery pipe (7); It also includes a limit plate (9) fixedly mounted on the delivery pipe (7), the limit plate (9) cooperates with the movable plate (29), and a spring (10) abutting against the limit plate (9) is sleeved on the delivery pipe (7) and the support sleeve (6).

3. A mechanical valve control matching structure according to claim 2, characterized in that: The negative pressure assembly comprises a piston cylinder (11) fixedly mounted on the fixed support member (3), a piston (12) being movably mounted in the piston cylinder (11), a push rod (13) penetrating the piston cylinder (11) and the mixing barrel (2) being fixed on the piston (12), the spring (10) being sleeved on the push rod (13) and the limiting plate (9) being fixed thereto.

4. The mechanical valve control matching structure according to claim 1, characterized in that: The stirring assembly comprises a transmission rod (15) rotatably mounted in the mixing barrel (2), the transmission rod (15) being connected to the trigger transmission mechanism, the transmission rod (15) being connected to the output shaft of a motor (14) fixedly mounted on the mixing barrel (2), and a plurality of stirring blades (18) equidistantly distributed around a circumference being fixed on the transmission rod (15).

5. The mechanical valve control matching structure according to claim 4, characterized in that: The trigger transmission mechanism comprises a cavity (16) provided in the transmission rod (15); a through hole (17) and a clamping slot (19) connected to the cavity (16) are provided on a side wall of the transmission rod (15); the through holes (17) are symmetrically arranged; and a driven component connected to the clamping slot (19) is provided on the transmission rod (15).

6. The mechanical valve control matching structure according to claim 5, characterized in that: The driven assembly comprises a sealing sleeve (21) movably mounted on the transmission rod (15), a sealing plate (20) penetrating the slot (19) and slidably sealed with the cavity (16) being fixed in the sealing sleeve (21), and an active latching tooth (22) being fixed on the outer wall of the sealing sleeve (21); It also includes a rotating sleeve (23) rotatably mounted in the mixing barrel (2) and sleeved on the transmission rod (15), a driven latch (25) that cooperates with the active latch (22) being fixed to the end of the rotating sleeve (23), and the rotating sleeve (23) is connected to the conduction regulating mechanism.

7. The mechanical valve control matching structure according to claim 6, characterized in that: The conduction regulating mechanism includes a guide groove (24) provided on the outer wall of the rotating sleeve (23); a movable sleeve (26) is movably mounted on the rotating sleeve (23); a protrusion (27) slidably connected to the guide groove (24) is fixed on the inner wall of the movable sleeve (26); and a guide assembly connected to the movable plate (29) is provided on the movable sleeve (26).

8. The mechanical valve control matching structure according to claim 7, characterized in that: The guide assembly comprises a fixed sleeve (31) fixedly mounted in the mixing barrel (2) and sleeved on the movable sleeve (26); a limiting groove is provided on the inner wall of the fixed sleeve (31); and a limiting rod engaged with the limiting groove is fixed on the outer wall of the movable sleeve (26); It also includes a limiting sleeve (28) rotatably mounted on the movable sleeve (26), and the limiting sleeve (28) is fixedly connected to the movable plate (29).

9. A mixer for epoxy resin casting material, comprising the mechanical valve-controlled matching structure according to any one of claims 1 to 8.

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