CN113117570A - Horizontal continuous vacuum stirring equipment for processing thermal interface material - Google Patents
Horizontal continuous vacuum stirring equipment for processing thermal interface material Download PDFInfo
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- CN113117570A CN113117570A CN202110663962.5A CN202110663962A CN113117570A CN 113117570 A CN113117570 A CN 113117570A CN 202110663962 A CN202110663962 A CN 202110663962A CN 113117570 A CN113117570 A CN 113117570A
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- 238000003756 stirring Methods 0.000 title claims abstract description 70
- 239000000463 material Substances 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 48
- 230000009471 action Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
- B01F29/64—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with stirring devices moving in relation to the receptacle, e.g. rotating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
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Abstract
The invention provides horizontal continuous vacuum stirring equipment for processing a thermal interface material. The horizontal continuous vacuum stirring equipment for processing the thermal interface material comprises a shell, a rotary drum, a stirring paddle, a transmission shaft, a power mechanism, a feeding mechanism, a discharging structure and a vacuum pump; the improved stirring machine is characterized in that the rotary drum is arranged in the machine shell, the stirring paddle is arranged in the rotary drum, the transmission shaft is a double-layer shaft and comprises a tubular outer shaft and a mandrel which is arranged in the outer shaft in a slidable mode, the outer shaft penetrates through the machine shell, the outer shaft is movably connected with the machine shell and fixedly connected with the rotary drum, the mandrel is fixedly connected with the stirring paddle, the power mechanism is arranged outside the machine shell, and a power output shaft of the power mechanism is connected with the transmission shaft. The horizontal continuous vacuum stirring equipment for processing the thermal interface material solves the technical problem that the thermal interface material vacuum stirring equipment in the prior art is difficult to be fully and uniformly mixed.
Description
Technical Field
The invention relates to the field of stirring equipment, in particular to horizontal continuous vacuum stirring equipment for processing a thermal interface material.
Background
The development direction of the present microelectronic technology is high speed, high frequency, multiple functions, high performance, small volume, light weight and high reliability, the microelectronic integration and packaging technology plays an increasingly important role in integrated circuit products, and the functions realized on the module level in the past are required to be realized on the packaging level nowadays. As the feature size of integrated circuits is on the order of nanometers, the packaging format of integrated circuit products has also been developed from two dimensions to three dimensions, moving towards higher densities. Thermal Interface Materials (TIM) are important materials widely used in manufacturing heat dissipation systems, and can take away heat generated during chip operation in packaged integrated circuit products in time so as to cool and protect the integrated circuit chips and prevent the performance and service life of the chips from being affected.
The production process of the Thermal Interface Material (TIM) comprises the following steps: processing heat-conducting filler, processing matrix resin, and stirring and mixing the heat-conducting filler, the matrix resin and the auxiliary agent uniformly. In order to avoid the interference of impurities in the stirring process, a vacuum stirring device capable of continuously feeding and discharging materials is usually selected. However, the existing vacuum stirring equipment is realized by arranging stirring blades in a fixed stirring tank, and the problem that the materials are difficult to be fully and uniformly mixed exists in the process of processing the thermal interface materials. The rotary drum type stirring equipment can solve the problem, but continuous feeding and discharging and vacuum pumping are difficult to realize.
Disclosure of Invention
In order to solve the technical problem that the vacuum stirring equipment for the thermal interface material in the prior art is difficult to fully and uniformly mix, the invention provides horizontal continuous vacuum stirring equipment for processing the thermal interface material, which solves the problem.
A horizontal continuous vacuum stirring device for processing thermal interface materials comprises a shell, a rotary drum, a stirring paddle, a transmission shaft, a power mechanism, a feeding mechanism, a discharging structure and a vacuum pump; the rotary drum is arranged in the shell, the stirring paddle is arranged in the rotary drum, the transmission shaft is a double-layer shaft and comprises a tubular outer shaft and a mandrel which is arranged in the outer shaft in a sliding manner, the outer shaft penetrates through the shell, is movably connected with the shell and is fixedly connected with the rotary drum, the mandrel is fixedly connected with the stirring paddle, the power mechanism is arranged outside the shell, and a power output shaft of the power mechanism is connected with the transmission shaft;
the feeding mechanism is arranged on the other side of the machine shell opposite to the transmission shaft, penetrates through the machine shell and the rotary drum, is fixedly connected with the machine shell and does not contact with the rotary drum; the discharging mechanism comprises a rotary drum discharging unit, a shell discharging unit and a control unit; the rotary drum discharging unit comprises a first discharging opening penetrating through the rotary drum and a sealing cover arranged on the outer wall of the rotary drum and used for sealing the first discharging opening, and the sealing cover is movably connected with the outer wall of the rotary drum; the shell discharging unit comprises a second discharging opening penetrating through the shell, and two layers of sealing doors are arranged in the second discharging opening; the control unit comprises an electric telescopic rod, a rotary drum contact, a shell contact, an electric control switch and a control box, wherein the electric telescopic rod and the rotary drum contact are arranged on the outer wall of the rotary drum, one end of the electric telescopic rod is movably connected with the sealing cover, the other end of the electric telescopic rod is movably connected with the outer wall of the rotary drum, a power supply line of the electric telescopic rod is connected with the rotary drum contact, the shell contact and the electric control switch are arranged on the inner wall of the shell and are connected with the control box through a circuit, the control box is arranged on the outer wall of the shell, and the rotary drum contact and the shell contact can be connected or disconnected through the electric control switch; the vacuum pump is fixed outside the casing and is provided with an exhaust pipe communicated with the inside of the casing.
In a preferred embodiment of the horizontal continuous vacuum stirring apparatus for processing thermal interface materials provided by the present invention, the power mechanism comprises one set of rotating unit or two sets of rotating units; when only one set of rotating unit is arranged, a power output shaft of the rotating unit is connected with the outer shaft, and the mandrel is kept fixed with the outside through a bracket; when two sets of the rotating units are arranged, power output shafts of the two rotating units are respectively connected with the outer shaft and the mandrel. The power mechanism further comprises a set of telescopic unit, and a power output shaft of the telescopic unit is connected with the outer shaft or the mandrel.
In a preferred embodiment of the horizontal continuous vacuum stirring apparatus for processing thermal interface materials provided by the present invention, the inner wall of the drum is frustum-shaped, one end of the smaller bottom surface of the drum faces the feeding mechanism, and the other end of the smaller bottom surface is fixedly connected with the outer shaft.
In a preferred embodiment of the horizontal continuous vacuum stirring apparatus for processing thermal interface materials provided by the present invention, the drum is a cylindrical tank, one end surface of which faces the feeding mechanism, and the other end surface of which is fixedly connected with the outer shaft.
In a preferred embodiment of the horizontal continuous vacuum stirring apparatus for processing thermal interface materials provided by the present invention, the outer wall of the drum is provided with a balancing weight; the outer axle with be equipped with the sealing member between the casing, the dabber with be equipped with the sealing member between the outer axle.
In a preferred embodiment of the horizontal continuous vacuum stirring apparatus for thermal interface material processing provided by the present invention, the feeding mechanism includes a main feeding pipe and a plurality of branch feeding pipes, the main feeding pipe penetrates through the casing and the drum simultaneously, is fixedly connected to the casing and does not contact the drum, the plurality of branch feeding pipes are arranged inside the main feeding pipe, and the space between the main feeding pipe and the drum is filled with a sealant, and each branch feeding pipe is provided with a feeding valve at a position outside the casing.
In a preferred embodiment of the horizontal continuous vacuum stirring apparatus for processing thermal interface materials provided by the present invention, the first discharge opening is disposed at a position of the edge of the sidewall of the rotary drum near the end surface thereof, the sealing cover includes a cover surface and a cover plug, the cover plug is inserted into the first discharge opening and is flush with the inner wall of the rotary drum, and the cover surface is clamped outside the rotary drum, is movably connected with the outer wall of the rotary drum, and is movably connected with the electric telescopic rod.
The second discharge opening is arranged at the edge position of the side wall of the machine shell, which is far away from the feeding pipe, and extends downwards to form a discharge pipe, and two sealing doors are arranged inside the discharge pipe.
In a preferred embodiment of the horizontal continuous vacuum stirring equipment for processing the thermal interface material, the electric control switch comprises an iron connecting rod and an electromagnet, a fulcrum is arranged in the middle of the connecting rod and movably connected to the inner wall of the machine shell, and the electromagnet is fixed on the inner wall of the machine shell and is connected with the control box through a circuit;
when the electromagnet is powered on, the connecting rod is attracted to rotate, two ends of the connecting rod are abutted to the rotary drum contact and the shell contact, the rotary drum contact and the shell contact are electrically conducted, and when the electromagnet is powered off, the connecting rod rotates reversely under the action of gravity, so that two ends of the connecting rod are not in contact with the rotary drum contact and the shell contact.
Compared with the prior art, the horizontal continuous vacuum stirring equipment for processing the thermal interface material provided by the invention adopts a horizontal drum structure to process the thermal interface material, so that a better uniform mixing effect is obtained. The process of feeding and discharging is carried out continuously, the pressure in the shell is not restored, the vacuum state is kept, the reduction of the product quality caused by the air introduction is avoided, and the production efficiency is higher.
Drawings
FIG. 1 is a schematic structural view of a horizontal continuous vacuum stirring apparatus for thermal interface material processing in example 1 according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of a horizontal continuous vacuum stirring apparatus for thermal interface material processing in example 2 according to the present invention;
FIG. 4 is a schematic structural view of a horizontal continuous vacuum stirring apparatus for thermal interface material processing in example 3 according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is a schematic structural view of the horizontal continuous vacuum stirring apparatus for thermal interface material processing in example 4 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
fig. 1 and fig. 2 are a schematic structural diagram and a partially enlarged view of a horizontal continuous vacuum stirring apparatus 1 for processing a thermal interface material according to the present invention.
The figures are only schematic with reference and are not drawn strictly in cross-section. The horizontal continuous vacuum stirring equipment 1 for processing the thermal interface material comprises a shell 2, a rotary drum 3, a stirring paddle 4, a transmission shaft 5, a power mechanism 6, a feeding mechanism 7, a discharging structure 8 and a vacuum pump 9.
The rotary drum 3 is arranged in the shell 2. The rotary drum 3 is a cylindrical structure which is horizontally arranged in the axial direction, and the left end face and the right end face of the rotary drum are respectively connected with the inner wall of the casing 2 through bearings, so that the rotary drum 3 can rotate in the casing 2. And a bearing is also arranged at the position, close to the right end face, of the side wall of the rotary drum 3, and is connected with a support arranged on the inner wall of the shell 2 through the bearing, so that the right end of the rotary drum 3 is supported and reinforced. The inner part of the rotary drum 3 is provided with a frustum-shaped cavity, the larger bottom surface of the frustum faces to the left side and is parallel to the end surface of the rotary drum 3, the smaller bottom surface faces to the right side, and the axis is superposed with the axis of the rotary drum.
The stirring paddle 4 is arranged in the rotary drum 3. The stirring paddle 4 comprises a long-strip-shaped paddle body 41 and turning heads 42 arranged at two ends of the long-strip-shaped paddle body, the paddle body 41 is perpendicular to the axial direction of the rotary drum 3, and the turning heads 42 are attached to the inner wall of the rotary drum 3.
The transmission shaft 5 is a double-layer shaft and comprises a tubular outer shaft 51 and a mandrel 52 which is slidably arranged in the outer shaft, and the axes of the outer shaft and the mandrel are coincident. The outer shaft 51 penetrates the machine shell 2 and the rotary drum 3 from the left side at an angle coincident with the axis of the rotary drum 3, is fixedly connected with the rotary drum 3, and is movably connected with the machine shell 2 through a bearing. The right end of the mandrel 52 penetrates out of the outer shaft 51 and is fixedly connected with the middle point of the paddle body 41.
The power mechanism 6 only comprises one set of rotating mechanism 61. And the power output shaft of the rotating mechanism 61 is connected with the left end of the outer shaft 51 through a belt to realize transmission. The left end of the mandrel 52 penetrates out of the outer shaft 51 and is fixed outside the rotating mechanism 61 through a bracket.
The feed mechanism 7 comprises a main feed pipe 71 and three branch feed pipes 72. The main feed pipe 71 penetrates the casing 2 and the drum 3 from the right side at an angle coincident with the axis of the drum 3, and is fixedly connected to the casing 2 without contacting the drum 3. Three branch feed pipes 72 penetrate through the main feed pipe 71 to the inside of the rotary drum 3, and sealing media are filled between the main feed pipe 71 and the branch feed pipes 72. Each of the branch feeding pipes 72 is provided with a flow control valve 73 at a position outside the casing 2.
The discharging structure 8 comprises a drum discharging unit 81, a housing discharging unit 82 and a control unit 83. The drum discharge unit 81 includes a first discharge opening 811 and a sealing cover 812 provided therein. The first discharge opening is arranged at a position close to the left end surface of the side wall of the rotary drum 3, the cover plug of the sealing cover 812 is inserted into the first discharge opening 811 and is kept flush with the inner wall of the rotary drum 3, and the cover surface is clamped on the outer wall of the rotary drum 3. And the right side of the cover surface is movably connected with the outer wall of the rotary drum 3 through a rotating shaft.
The cabinet discharge unit 82 includes a second discharge port 821 and two sets of sealing doors 822. The second discharge opening 821 is disposed at a position near the left end surface at the bottom of the side wall of the casing, and extends downward to form a discharge tube, and two sets of the sealing doors 822 are horizontally disposed one above the other in the discharge tube. The control handle of the sealing door 822 penetrates the second discharge opening 821 from the right side, and the opening and closing of the control handle can be controlled manually or by arranging automatic control equipment. Further, a material blocking edge 823 which extends upwards from the edge of the second discharge opening 821 is further arranged at a position, close to the left end face, of the side wall in the machine shell 2, so that a left material blocking ring and a right material blocking ring are formed.
The control unit 83 includes an electric telescopic rod 831, a rotary drum contact 832, a case contact 833, a control box 834, a connecting rod 835 and an electromagnet 836. The electric telescopic rod 831 is arranged on the outer wall of the rotary drum 3 close to the sealing cover 812, the head end and the tail end of the electric telescopic rod are respectively movably connected with the cover surface of the sealing cover 812 and the outer wall of the rotary drum 3 through a mounting seat, and the sealing cover 812 is driven to open and close through stretching. The drum contact 832 is two circles of conducting rings surrounding the outer wall of the drum 3 and is connected with the positive electrode and the negative electrode of the electric telescopic rod 831 through conducting wires.
The control box 834 is fixed at the bottom of the outer wall of the casing 2, and the casing contacts 833 are two contacts fixed on the inner wall of the casing 2, penetrate through the casing 2 to the outside through a wire, and are connected with the control box 834.
The connecting rod 835 is an iron bent rod with an included angle of 135 degrees, a rotating shaft is arranged at the tip end of the connecting rod 835 and movably connected with the inner wall of the machine shell 2, two ends of the connecting rod 835 are respectively provided with an insulating pad, two contacts which can be connected with the rotary drum contact 832 and the machine shell contact 833 are arranged on the insulating pads, and the contacts at the two ends are connected through additional conducting wires. Further, the contacts for connecting with the drum contacts 832 may be brushes. The electromagnet 836 is fixed on the inner wall of the casing 2, is located below the right half section of the connecting rod 835, penetrates through the casing 2 to the outside through a conducting wire, and is connected with the control box 834.
The vacuum pump 9 is fixed on the left end face of the outer wall of the machine shell 2, and an exhaust pipe of the vacuum pump penetrates into the machine shell 2.
In addition, a counterweight is arranged on the outer wall of the rotating drum 3 to balance the weight of the sealing cover 812, the electric telescopic rod 831, the rotating drum contact 832 and other components, so as to ensure the dynamic balance of the rotating drum 3. A sealing member is arranged between the outer shaft 51 and the casing 2, and a sealing member is arranged between the mandrel 52 and the outer shaft 51.
The operation flow is as follows:
the vacuum pump 9 vacuums the inner space of the casing 2. The rotating mechanism 61 drives the rotary drum 3 to rotate through the outer shaft 51, and the stirring paddle 4 is kept static, so that relative movement with the rotary drum 3 is formed. The three feeding pipes 72 quantitatively feed the filler, the resin and the auxiliary agent into the rotary drum 3 according to a fixed proportion.
Under the action of the centrifugal force of the rotary drum 3, the materials continuously move from right to left along the inner wall of the rotary drum 3 and contact with the stirring paddle 4 to realize stirring and uniform mixing in the moving process. The blended material is gathered at the left edge inside the drum 3.
The drum 3 keeps rotating, the control box 834 controls the electromagnet 836 to be electrified, the connecting rod 835 is attracted to rotate clockwise under the action of magnetic force, contacts at two ends of the connecting rod 835 are respectively abutted to the drum contact 832 and the machine shell contact 833, and accordingly a passage is formed between the electric telescopic rod 831 and the control box 834.
The control box 834 controls the electric telescopic rod 831 to contract, and the sealing cover 812 is pulled open. The material gathered at the left edge in the rotating drum 3 is thrown out to the space between the blocking edges 823 and is gathered in the second discharge opening 821 under the action of gravity.
The control box 834 controls the electric telescopic rod 831 to extend and close the sealing cover 812. And the above process may be repeated several times as appropriate, so that a sufficient amount of the uniformly mixed materials are collected in the second discharge opening 821.
The upper set of sealing gates 822 is opened and the material falls onto the lower set of sealing gates 822. After closing the upper set of sealing door 822, the lower set of sealing door 822 is opened again, and the uniformly mixed materials are discharged. The vacuum pump 9 may be periodically turned on to maintain the vacuum level within the cabinet 2.
Example 2:
fig. 3 is a schematic structural diagram of a horizontal continuous vacuum stirring apparatus 1 for processing a thermal interface material according to the present invention in this embodiment.
The difference from example 1 is that:
the power mechanism 6 comprises two sets of rotating mechanisms 61. One set the power output shaft of slewing mechanism 61 with the left end of outer axle 51 is connected through the belt and is realized the transmission, another set the power output shaft of slewing mechanism 61 with the left end of dabber 52 is connected through the belt and is realized the transmission. The power output directions of the two sets of rotating mechanisms 61 are opposite, namely the rotating directions of the rotary drum 3 and the stirring paddle 4 are opposite, so that a better stirring effect is obtained.
Example 3:
fig. 4 and fig. 5 are a schematic structural diagram and a partially enlarged view of the horizontal continuous vacuum stirring apparatus 1 for processing thermal interface material according to the present invention.
The difference from example 1 is that:
the rotary drum 3 is arranged in the shell 2. The rotary drum 3 is a cylindrical structure which is horizontally arranged in the axial direction, and the left end face and the right end face of the rotary drum are respectively connected with the inner wall of the casing 2 through bearings, so that the rotary drum 3 can rotate in the casing 2. A cylindrical cavity is arranged in the rotary drum 3, and the axis of the cylindrical cavity coincides with the axis of the rotary drum.
The power mechanism 6 comprises a set of rotating mechanism 61 and a set of telescoping mechanism 62. And the power output shaft of the rotating mechanism 61 is connected with the left end of the outer shaft 51 through a belt to realize transmission. And a power output shaft of the telescopic mechanism 62 is connected with the left end of the mandrel 52 through a coupler to realize transmission.
The discharging structure 8 comprises a drum discharging unit 81, a housing discharging unit 82 and a control unit 83. The drum discharge unit 81 includes two first discharge ports 811 and two sealing caps 812 provided therein, respectively. One of the first discharge ports 811 is provided at a position near the left end surface of the side wall of the rotary drum 3, and the other is provided at a position near the right end surface. The plug of the sealing cover 812 is inserted into the first discharge opening 811 and remains flush with the inner wall of the rotary drum 3, and the cover surface is clamped on the outer wall of the rotary drum 3. The right side of the sealing cover 812 arranged on the left side is movably connected with the outer wall of the rotary drum 3 through a rotating shaft, and the left side of the sealing cover 812 arranged on the right side is movably connected with the outer wall of the rotary drum 3 through a rotating shaft.
The cabinet discharge unit 82 includes two second discharge openings 821 and four sets of sealing doors 822. One of the second discharge openings 821 is disposed at a position near the left end surface of the bottom of the side wall of the casing and extends downward to form a discharge tube, and two sets of the sealing doors 822 are disposed at a level above and below the discharge tube. The other is arranged at a position close to the right end face, and the other two sets of the sealing doors 822 are arranged in the same structure. The control handle of the sealing door 822 penetrates the second discharge opening 821 from the right side, and the opening and closing of the control handle can be controlled manually or by arranging automatic control equipment.
Further, the positions of the side wall in the casing 2 close to the left end surface and the right end surface are respectively provided with a material blocking edge 823 extending upwards from the edge of the two second discharge openings 821 to form a left material blocking ring and a right material blocking ring.
The control unit 83 includes two electric telescopic rods 831, which are disposed on the outer wall of the rotary drum 3 and located near the two sealing covers 812.
The head ends of the two electric telescopic rods 831 are respectively movably connected with the cover surfaces of the two sealing covers 812 through a mounting seat, and the tail ends of the two electric telescopic rods 831 are movably connected with the outer wall of the rotary drum 3 through the mounting seat and drive the sealing covers 812 to open and close through stretching.
Other structures are the same as those in embodiment 1, and are not described again.
The operation flow is as follows:
the vacuum pump 9 vacuums the inner space of the casing 2. The rotating mechanism 61 drives the rotary drum 3 to rotate through the outer shaft 51, and the telescopic mechanism 62 drives the stirring paddle 4 to stretch left and right, so that the stirring paddle 4 and the rotary drum 3 form relative motion in the circumferential direction and the axial direction. The three feeding pipes 72 quantitatively feed the filler, the resin and the auxiliary agent into the rotary drum 3 according to a fixed proportion.
Under the action of the centrifugal force of the rotary drum 3, the materials are attached to the inner wall of the rotary drum 3 and are in contact with the stirring paddle 4. Because the stirring paddle 4 moves in a left-right telescopic mode, materials cannot be independently gathered at a certain position, and are continuously stir-fried in the rotary drum 3.
The rotary drum 3 and the stirring paddle 4 keep rotating, the control box 834 controls the electromagnet 836 to be electrified, and the connecting rod 835 is attracted to rotate clockwise under the action of magnetic force, so that contacts at two ends of the connecting rod 835 are respectively abutted to the rotary drum contact 832 and the machine shell contact 833, and a passage is formed between the electric telescopic rod 831 and the control box 834.
The control box 834 controls the electric telescopic rod 831 to contract, and the two sealing covers 812 are pulled open. The materials are pushed out from the left first discharge opening 811 and the right first discharge opening 811 continuously under the pushing of the stirring paddle 4, thrown to the space between the material blocking edges 823 and collected in the second discharge opening 821 under the action of gravity.
The subsequent operations are the same as those in embodiment 1, and are not described again.
Example 4:
fig. 6 is a schematic structural diagram of a horizontal continuous vacuum stirring apparatus 1 for processing a thermal interface material according to the present invention in this embodiment.
The difference from example 3 is that:
the power mechanism 6 comprises two sets of rotating mechanisms 61 and one set of telescopic mechanisms 62. One set the power output shaft of slewing mechanism 61 with the left end of outer axle 51 is connected through the belt and is realized the transmission, another set the power output shaft of slewing mechanism 61 with the left end of dabber 52 is connected through the belt and is realized the transmission, the power output shaft of telescopic machanism 62 with the left end of dabber 52 is connected through the bearing and is realized the transmission.
The power output directions of the two sets of rotating mechanisms 61 are opposite, namely the rotating directions of the rotary drum 3 and the stirring paddle 4 are opposite, so that a better stirring effect is obtained.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a processing of thermal interface material is with horizontal continuous vacuum mixing equipment which characterized in that: comprises a shell, a rotary drum, a stirring paddle, a transmission shaft, a power mechanism, a feeding mechanism, a discharging structure and a vacuum pump; the rotary drum is arranged in the shell, the stirring paddle is arranged in the rotary drum, the transmission shaft is a double-layer shaft and comprises a tubular outer shaft and a mandrel which is arranged in the outer shaft in a sliding manner, the outer shaft penetrates through the shell, is movably connected with the shell and is fixedly connected with the rotary drum, the mandrel is fixedly connected with the stirring paddle, the power mechanism is arranged outside the shell, and a power output shaft of the power mechanism is connected with the transmission shaft;
the feeding mechanism is arranged on the other side of the machine shell opposite to the transmission shaft, penetrates through the machine shell and the rotary drum, is fixedly connected with the machine shell and does not contact with the rotary drum; the discharging mechanism comprises a rotary drum discharging unit, a shell discharging unit and a control unit; the rotary drum discharging unit comprises a first discharging opening penetrating through the rotary drum and a sealing cover arranged on the outer wall of the rotary drum and used for sealing the first discharging opening, and the sealing cover is movably connected with the outer wall of the rotary drum; the shell discharging unit comprises a second discharging opening penetrating through the shell, and two layers of sealing doors are arranged in the second discharging opening; the control unit comprises an electric telescopic rod, a rotary drum contact, a shell contact, an electric control switch and a control box, wherein the electric telescopic rod and the rotary drum contact are arranged on the outer wall of the rotary drum, one end of the electric telescopic rod is movably connected with the sealing cover, the other end of the electric telescopic rod is movably connected with the outer wall of the rotary drum, a power supply line of the electric telescopic rod is connected with the rotary drum contact, the shell contact and the electric control switch are arranged on the inner wall of the shell and are connected with the control box through a circuit, the control box is arranged on the outer wall of the shell, and the rotary drum contact and the shell contact can be connected or disconnected through the electric control switch; the vacuum pump is fixed outside the casing and is provided with an exhaust pipe communicated with the inside of the casing.
2. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 1, wherein: the power mechanism comprises one set of rotating unit or two sets of rotating units; when only one set of rotating unit is arranged, a power output shaft of the rotating unit is connected with the outer shaft, and the mandrel is kept fixed with the outside through a bracket; when two sets of the rotating units are arranged, power output shafts of the two rotating units are respectively connected with the outer shaft and the mandrel.
3. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 2, wherein: the power mechanism further comprises a set of telescopic unit, and a power output shaft of the telescopic unit is connected with the outer shaft or the mandrel.
4. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 2 or 3, wherein: the inner wall of the rotary drum is frustum-shaped, one end of the smaller bottom surface of the rotary drum faces the feeding mechanism, and the other end of the smaller bottom surface of the rotary drum is fixedly connected with the outer shaft.
5. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 2 or 3, wherein: the rotary drum is a cylindrical tank body, one end face of the rotary drum faces the feeding mechanism, and the other end face of the rotary drum is fixedly connected with the outer shaft.
6. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 1, wherein: the outer wall of the rotary drum is provided with a balancing weight; the outer axle with be equipped with the sealing member between the casing, the dabber with be equipped with the sealing member between the outer axle.
7. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 1, wherein: the feeding mechanism comprises a main feeding pipe and a plurality of branch feeding pipes, wherein the main feeding pipe penetrates through the machine shell and the rotary drum simultaneously, the main feeding pipe is fixedly connected with the machine shell and does not contact with the rotary drum, a plurality of branch feeding pipes are arranged inside the rotary drum, sealant is filled between the branch feeding pipes, and each branch feeding pipe is arranged at a position outside the machine shell and provided with a feeding valve.
8. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 1, wherein: the first discharge opening is formed in the position, close to the end face of the side wall edge of the rotary drum, the sealing cover comprises a cover face and a cover plug, the cover plug is inserted into the first discharge opening and is flush with the inner wall of the rotary drum, and the cover face is clamped outside the rotary drum, is movably connected with the outer wall of the rotary drum and is movably connected with the electric telescopic rod.
9. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 1, wherein: the second discharge opening is arranged at the edge position of the side wall of the machine shell, which is far away from the feeding pipe, and extends downwards to form a discharge pipe, and two sealing doors are arranged inside the discharge pipe.
10. The horizontal continuous vacuum stirring apparatus for thermal interface material processing according to claim 1, wherein: the electric control switch comprises an iron connecting rod and an electromagnet, a fulcrum is arranged in the middle of the connecting rod and movably connected to the inner wall of the casing, and the electromagnet is fixed on the inner wall of the casing and is connected with the control box through a circuit;
when the electromagnet is powered on, the connecting rod is attracted to rotate, two ends of the connecting rod are abutted to the rotary drum contact and the shell contact, the rotary drum contact and the shell contact are electrically conducted, and when the electromagnet is powered off, the connecting rod rotates reversely under the action of gravity, so that two ends of the connecting rod are not in contact with the rotary drum contact and the shell contact.
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| CN202110663962.5A CN113117570A (en) | 2021-06-16 | 2021-06-16 | Horizontal continuous vacuum stirring equipment for processing thermal interface material |
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| CN202110663962.5A CN113117570A (en) | 2021-06-16 | 2021-06-16 | Horizontal continuous vacuum stirring equipment for processing thermal interface material |
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