CN109569807B

CN109569807B - Grinder is used in silica gel production

Info

Publication number: CN109569807B
Application number: CN201811459408.XA
Authority: CN
Inventors: 李朝凤
Original assignee: Chongqing Juncheng Silicone Co ltd
Current assignee: Chongqing Juncheng Silicone Co ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-09-15
Anticipated expiration: 2038-11-30
Also published as: CN109569807A

Abstract

The invention relates to the field of silica gel grinding, in particular to a grinding device for silica gel production. The operating cylinder is internally provided with a planetary gear train, a filter screening part and a partition plate from top to bottom in sequence. One side of the operation cylinder is provided with a material pipe fixed on the motor and an air blower positioned on the lower side of the material pipe, an output shaft of the motor is coaxially connected with a gear reduction mechanism, a baffle is matched in the material pipe in a rotating way, the gear reduction mechanism is connected with the baffle, and grinding balls are placed in the filter screening part. This scheme of adoption is used for the matrix to grind, can make matrix grinding degree abundant, improves the utilization ratio of matrix.

Description

Grinder is used in silica gel production

Technical Field

The invention relates to the field of silica gel grinding, in particular to a grinding device for silica gel production.

Background

Silicone rubber refers to rubber having a backbone composed of alternating silicon and oxygen atoms, with the silicon atoms typically having two organic groups attached to them. Silicone rubbers are further classified into heat vulcanization (high temperature vulcanized silicone HTV) and Room Temperature Vulcanization (RTV) in use. The high-temperature vulcanized silicone rubber is mainly used for manufacturing various rubber products, and the room-temperature silicone rubber is mainly used as a binder.

Common room temperature silicone rubber is silicone structural adhesive which is specially designed for structural bonding assembly in building curtain walls, has good bonding property and stability, and is widely used in the building field. At present, the common production method is to put 107 glue and calcium carbonate powder into a first mixing drum to be mixed to form a base material, then transfer the base material into a grinding device, grind the base material by a grinding rod, and then put trimethyl, titanium hydrate, coupling agent, white oil and the base material into a second mixing drum to be mixed to obtain the finished product. The above-mentioned plant also has some drawbacks in production: in the grinding device, because the base material poured into the grinding device is more, the grinding rod can not fully grind and grind the base material, so that the base material put into the second mixing drum is doped with the base material which is not ground, and a finished product mixed by the second mixing drum contains particles, so that the base material forms a solid bonding object in the bonding process, the bonding performance of the solid bonding object is poor when the grinding device is used, the base material bonded into the solid bonding object can be wasted, and if the base material is not fully ground, the bonding effect of the finished product is poor, and the utilization rate of the base material is low.

Disclosure of Invention

The invention aims to provide a grinding device for silica gel production, which solves the problem that the existing grinding device is not sufficient in grinding.

In order to achieve the purpose, the invention provides the following technical scheme:

the grinding device for silica gel production comprises a frame and a motor fixed on the frame, wherein a planetary gear train is arranged in an operation cylinder, a planetary gear train planetary gear, the motor coaxial coupling has gear reduction mechanism, material intraductal rotation fit has the baffle, gear reduction mechanism and baffle rigid coupling, and baffle and material pipe wall normal running fit, the filter sieve divides including first filter, second filter and riser, form primary grinding chamber between riser and the first filter, form secondary grinding chamber between first filter and the second filter, form the finished product room between second filter and the riser, it has first filtration hole, second filtration hole to open respectively on first filter and the second filter, the diameter of first filtration hole is greater than the diameter of second filtration hole, first filter, second filter and riser set up respectively in week side and the even sun wheel axle fixed connection of the sun wheel shaft of planetary gear train.

The principle and the beneficial effects of the invention are as follows:

(1) the planetary gear train is driven to rotate by the motor, so that the planetary gear train drives the filter screening part to rotate in the operation cylinder, the base material is poured into the operation cylinder, the grinding balls grind and mill the base material, and the filter holes in the filter screening part can filter and screen the base material ground by the grinding balls while the filter screening part rotates. Utilize planetary gear's structure to be the acceleration rate motion to filter sieve subsection, thereby let the grinding ball fully grind the base material, again through the reduction gears with motor coaxial coupling, make pivot pivoted time increase through reduction gears's speed reduction, thereby let baffle pivoted time increase, utilize the drive ratio difference between planetary gear and the pivot, realize when filter sieve subsection is grinding the filter-out to the base material, the material pipe still is in the encapsulated situation under the effect of baffle, cooperation through filter sieve subsection and baffle between realize fully grinding and the secondary grinding of base material, let the base material after a lot of fully grinding, can realize that the base material tapering accords with the effect that the bonding required.

(2) After the base material that needs to be ground is put into primary grinding chamber, after the grinding ball in primary grinding chamber grinds, when the base material diameter after the grinding is less than first filtration pore diameter, the base material of grinding can get into second grade grinding chamber through first filtration pore, again by the second grade grinding chamber in the grinding ball to entering into second grade grinding chamber in the base material grind once more, after the base material diameter after the grinding is less than the diameter of second filtration pore, the base material can get into the finished product room through the second filtration pore, realize carrying out the effect screened to the qualified base material of size. The grinding balls in the primary grinding chamber and the secondary grinding chamber are used for grinding the base material repeatedly, the base material with a proper size is filtered through the filter holes, the base material with a size incapable of passing through the filter holes is continuously ground with the grinding balls in the grinding chamber, the base material is ground for multiple times, and finally the effect of thinning the base material is achieved.

Further, it has a recess to open in the baffle, the baffle is opened there is fan-shaped breach, the rigid coupling has the screen cloth between the fan-shaped breach of baffle and the operation section of thick bamboo inner wall, and sliding connection has the slide in the recess, the rigid coupling has the spring between recess and the slide, and the rigid coupling has the electro-magnet on the recess inner wall, the rigid coupling has the time controller that can control the electro-magnet circular telegram or cut off the power supply on the operation section of thick bamboo outer wall.

Has the advantages that: after the motor drives planetary gear train and rotates the certain time, for example just satisfy time controller reaction required time after planetary gear train rotates 10 rings, carry out the outage demagnetization to the electro-magnet through time controller, let the slide stretch towards the recess inside under the effect of spring to let the baffle form the breach, make things convenient for not grind abundant base material and retrieve.

Furthermore, a Venturi tube is arranged on the material tube, and a throat of the Venturi tube is communicated with the guide tube.

Has the advantages that: avoid the wind-force that the air-blower produced to blow into in the collection room, prevent that not grind abundant base stock from blowing in retrieving the collection room for the efficiency of retrieving reduces.

Further, the bottom of the collection chamber is an inclined slope.

Has the advantages that: the base material recovered in the collecting chamber is convenient to transfer into the material pipe.

Further, gear reduction unit includes first reduction gear, second reduction gear, first reduction gear and the output shaft coaxial coupling of motor, first reduction gear and the meshing of second reduction gear, second reduction gear coaxial coupling has the pivot, baffle and material pipe horizontal segment normal running fit, the pivot extends the horizontal segment and the baffle rigid coupling of material pipe, pivot and material pipe normal running fit, the rigid coupling has the torsional spring between second reduction gear and the material pipe top.

Has the advantages that: the air blower is started, the recovered base materials are conveyed to the horizontal section of the material pipe under the pushing of wind power, after the baffle is opened, the base materials can be sprayed into the operation barrel from the horizontal section of the material pipe when the baffle is opened due to the pressure difference between the inside and the outside of the material pipe under the action of the air blower, and the base materials are dispersed more uniformly in the operation barrel.

Drawings

FIG. 1 is a longitudinal sectional view of the present embodiment;

FIG. 2 is a top plan view of the planetary gear train of FIG. 1;

fig. 3 is a schematic structural view of the separator of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a motor 1, an output shaft 101, a gear reduction mechanism 2, a first reduction gear 201, a second reduction gear 202, a rotating shaft 203, a torsion spring 204, an operation cylinder 3, a first filter plate 301, a second filter plate 302, a grinding ball 303, a planetary gear train 4, a fixed rod 401, a planetary gear shaft 402, an inner gear ring 403, a planetary gear 404, a sun gear 405, a planetary carrier 406, a Venturi tube 5, a blower 6, a collection chamber 7, a baffle plate 8, a material pipe 801, a partition plate 9, a spring 901, a sliding plate 902, an electromagnet 903, a time controller 904 and a screen 905.

Example (b):

a grinding device for silica gel production is shown in figure 1 and comprises a frame, wherein a motor 1, an operation cylinder 3 and a collection chamber 7 are sequentially fixed on the frame from top to bottom. The operation cylinder 3 is open at both ends. The planetary gear train 4, the filter screening part and the partition plate 9 are sequentially arranged in the operation cylinder 3 from top to bottom.

The left side of the operation barrel 3 is provided with a material pipe 801 fixed on the rack and an air blower 6 located on the lower side of the material pipe 801, the material pipe 801 comprises a vertical section and a horizontal section located on the upper side of the vertical section, the horizontal section of the material pipe is provided with a pressure release valve (not shown in the figure), the vertical section of the material pipe 801 is provided with a Venturi tube 5, a conduit is communicated between a throat of the Venturi tube and the collection chamber 7, and the lower end of the vertical section of the material pipe 801 is communicated with an air inlet of the air.

The motor is characterized by further comprising a gear reduction mechanism 2, wherein the gear reduction mechanism 2 comprises a first reduction gear 201 and a second reduction gear 202 meshed with the first reduction gear 201, the first reduction gear 201 is coaxially connected with the output shaft 101 of the motor 1, the transmission ratio between the first reduction gear 201 and the second reduction gear 202 is 5, and further the rotation speed of the second reduction gear 202 is reduced. The second reduction gear 202 is coaxially connected with a rotating shaft 203 which is in running fit with the rack, the rotating shaft 203 is perpendicular to the horizontal section of the material pipe 801, and a torsion spring 204 is fixedly connected between the second reduction gear 202 and the top of the horizontal section of the material pipe 801. A baffle 8 positioned right below the rotating shaft 203 is arranged in the horizontal section of the material pipe 801, the size of the cross section area of the baffle 8 is consistent with that of the inner diameter of the horizontal section of the material pipe 801, an opening facing the bottom of the rotating shaft 203 is formed in the horizontal section of the material pipe 801, the rotating shaft 203 is welded with the baffle 8 in the horizontal section of the material pipe 801 through the opening, and the rotating shaft 203 is rotatably connected with the opening.

As shown in fig. 2, the planetary gear train 4 includes an annulus gear 403, a carrier 406, and a sun gear 405, a wheel shaft of the carrier 406 is coaxially connected to the output shaft 101 of the motor 1, and a fixing rod 401 for fixing the annulus gear 403 is welded between the annulus gear 403 and the inner wall of the operation barrel 3. The planet carrier 406 is located on the inner side of the

ring gear

403, 3 planet gear shafts are welded on the planet carrier 406, planet gears 404 meshed with the ring gear 403 are fixed on the planet gear shafts of the planet carrier 406, the sun gear 405 is located at the horizontal center of the ring gear 403, and the sun gear 405 is meshed with the planet gears 404.

The filter sieve divides the portion including first filter 301, second filter 302 and riser, and first filter 301, second filter 302 and riser all are located the sun gear downside, and all with the shaft bottom rigid coupling of sun gear. The first filter plate 301, the second filter plate 302, the vertical plate and the operation cylinder 3 are in running fit. A primary grinding chamber is formed between the vertical plate and the first filter plate 301, a secondary grinding chamber is formed between the first filter plate 301 and the second filter plate 302, and a finished product chamber is formed between the second filter plate 302 and the vertical plate. The horizontal segment right-hand member of material pipe 801 and the left side portion intercommunication of operation section of thick bamboo 3 specifically are: initially, the communicating portion is located in the primary grinding chamber, and a plurality of grinding balls 303 are placed in both the primary grinding chamber and the secondary grinding chamber. The first filter plate 301 is uniformly provided with a first filter hole, the second filter plate 302 is uniformly provided with a second filter hole, and the diameter of the first filter hole is larger than that of the second filter hole. Wherein, a plurality of big grinding balls are arranged in the primary grinding chamber, a plurality of small grinding balls are arranged in the secondary grinding chamber, the diameter of the big grinding ball is larger than that of the small grinding ball, and the diameter of the small grinding ball is larger than that of the first filtering hole. The size of the cross sectional area of the partition plate 9 is consistent with that of the inner wall of the operation cylinder, a fan-shaped notch is formed in the partition plate 9, a screen 905 is fixedly connected between the fan-shaped notch of the partition plate 9 and the inner wall of the operation cylinder, the diameter of the screen is smaller than that of the small grinding balls and larger than that of the second filtering holes, the fan-shaped notch is located right below the second-stage grinding chamber, and the cross sectional area of the fan-shaped notch is consistent with that of the second-stage grinding chamber. The partition plate 9 is internally provided with a groove, the groove is internally provided with a sliding plate 902 capable of sealing the fan-shaped gap in a horizontal sliding manner, the sliding plate 902 is made of a permanent magnet in the embodiment, as shown in fig. 3, a spring 901 is fixedly connected between the sliding plate 902 and the inner wall of the groove, the left wall of the inner side of the groove is fixedly connected with an electromagnet 903, and the outer wall of the right side of the operation barrel 3 is fixedly connected with a time controller 904 electrically connected with the electromagnet 903.

The bottom surface of the collection chamber 7 is a slope with a lower left and a higher right.

The specific implementation process is as follows:

the base material that will mix pours into the elementary grinding chamber in the operation section of thick bamboo 3, starter motor 1 and air-blower 6, let air-blower 6 last the air feed to the material pipe, increase the pressure in the material pipe, it rotates to drive gear reduction mechanism 2 and planet carrier 406 by motor 1's output shaft 101, utilize planetary gear train to accelerate the rotation of filter sieve portion, realize that the planet carrier is the input shaft, the shaft of sun gear is the output shaft, drive first filter 301 through sun gear 405, second filter 302 and riser rotate, thereby because the rotation of filter sieve portion drives big grinding ball and the little grinding ball rotation in elementary grinding chamber and the second grade grinding chamber, thereby grind the base material, and in first filter 301 and second filter 302 pivoted, can filter the base material of grinding, specifically do: when the base material in the primary grinding chamber is ground by the large grinding balls and the diameter of the base material is smaller than that of the first filtering holes, the base material can enter the secondary grinding chamber through the first filtering holes; after the base material in the secondary grinding chamber is ground by the small grinding balls, the diameter of the base material is smaller than that of the second filtering holes, the base material can enter the finished product chamber through the second filtering holes, and the first filtering plate, the second filtering plate and the vertical plate are driven by the sun gear to rotate clockwise, so that the base material in the primary grinding chamber is ground by the first filtering plate, the base material with the diameter smaller than that of the first filtering hole is pressed into the secondary grinding chamber, and the base material can not return to the primary grinding chamber again after entering the secondary grinding chamber because the first filtering plate, the second filtering plate and the vertical plate rotate clockwise. The base stock is screened in the primary grinding chamber and the secondary grinding chamber to obtain fully ground base stock.

By setting the time required for triggering the time controller 904, at this time, each stage of grinding chamber just restores to the original position, and the time controller 904 is triggered, so that the electromagnet 903 is powered off and demagnetized, at this time, the motor is turned off, and the motor stops working, the spring 901 overcomes the repulsive force between the sliding plate 902 and the electromagnet 903 to drive the sliding plate 902 to slide towards the inner side of the groove, because the fan-shaped notch is positioned under the second stage grinding chamber and the cross-sectional area of the fan-shaped notch is consistent with that of the second stage grinding chamber, the fan-shaped notch is not sealed, the base material accumulated in the second stage grinding chamber and can not pass through the second filtering hole falls into the collecting chamber 7, the recovered base material in the collecting chamber 7 is adsorbed by the negative pressure generated by the throat of the venturi tube, so that the base material tube is transferred into the base material tube 801, and the base material which is not fully ground is blown, the communicating part of the material pipe 801 is just positioned in the primary grinding chamber, and because the motor is stopped at the moment, the energy is stored by the torsion spring when the motor rotates, the torsion spring releases energy after the motor is stopped, and the rotating shaft is driven to rotate reversely under the action of the torsion spring, so that the baffle plate 8 is opened. Since there is a pressure difference between the inside and the outside of the material pipe 801 by the blower 6, when the material pipe 801 is not sealed by the baffle plate 8, the base material in the material pipe 801 is ejected from the horizontal section of the material pipe 801 toward the primary grinding chamber by the pressure difference.

After discharging for 1min, the time controller 904 is powered on again, so that the electromagnet 903 is powered on to generate repulsion to the sliding plate 902, the pulling force of the spring 901 is overcome, the sliding plate 902 is pushed to slide towards the fan-shaped notch, and finally the fan-shaped notch is sealed. The base material after being fully ground finally enters the finished product chamber, and the base material in the finished product chamber is collected after the grinding process is finished.

Claims

1. Grinder is used in silica gel production, include the frame and fix the motor in the frame, the frame is fixed with an operation section of thick bamboo, its characterized in that: the operation cylinder is internally provided with a planetary gear train, a planetary carrier wheel shaft of the planetary gear train is coaxially connected with a motor, a filter screening part positioned below the planetary gear train is rotationally matched in the operation cylinder, a plurality of grinding balls are placed in the filter screening part, a partition plate which is propped against the lower side of the filter screening part is arranged in the operation cylinder, the partition plate is horizontally and slidably matched with the operation cylinder, a collecting chamber fixed on a frame is arranged right below the operation cylinder, one side of the operation cylinder is provided with a material pipe fixed on the frame, the material pipe comprises a horizontal section and a vertical section, a pressure relief valve is arranged on the horizontal section of the material pipe, the lower end of the vertical section of the material pipe is communicated with an air blower, a conduit is communicated between the collecting chamber and the vertical section of the material pipe, the horizontal section of the material pipe is communicated with the side wall of, the material pipe internal rotation is matched with a baffle, the gear speed reducing mechanism is fixedly connected with the baffle, the baffle is matched with the pipe wall of the material pipe in a rotating mode, the filter screening part comprises a first filter, a second filter and a vertical plate, a primary grinding chamber is formed between the vertical plate and the first filter, a secondary grinding chamber is formed between the first filter and the second filter, a finished product chamber is formed between the second filter and the vertical plate, a first filter hole and a second filter hole are formed in the first filter and the second filter respectively, the diameter of the first filter hole is larger than that of the second filter hole, and the first filter, the second filter and the vertical plate are respectively arranged on the periphery side of a sun wheel shaft of the planetary gear train and are fixedly connected with the uniform sun wheel shaft.

2. The grinding device for silica gel production as set forth in claim 1, wherein: the baffle is internally provided with a groove, the baffle is provided with a fan-shaped notch, a screen is fixedly connected between the fan-shaped notch of the baffle and the inner wall of the operation barrel, a sliding plate is slidably connected in the groove, a spring is fixedly connected between the groove and the sliding plate, an electromagnet is fixedly connected on the inner wall of the groove, and a time controller capable of controlling the electromagnet to be powered on or powered off is fixedly connected on the outer wall of the operation barrel.

3. The grinding device for silica gel production as set forth in claim 2, wherein: the material pipe is provided with a Venturi tube, and a throat of the Venturi tube is communicated with the guide pipe.

4. The grinding device for silica gel production as set forth in claim 3, wherein: the bottom of the collection chamber is an inclined slope.

5. The grinding device for silica gel production as set forth in claim 4, wherein: the gear reduction mechanism comprises a first reduction gear and a second reduction gear, the first reduction gear is coaxially connected with an output shaft of the motor, the first reduction gear is meshed with the second reduction gear, the second reduction gear is coaxially connected with a rotating shaft, the baffle is in rotating fit with the horizontal section of the material pipe, the rotating shaft extends the horizontal section of the material pipe and is fixedly connected with the baffle, the rotating shaft is in rotating fit with the material pipe, and a torsion spring is fixedly connected between the second reduction gear and the top of the material pipe.