CN111421940A - Small-size mica pipe coiling device, manufacturing device and coiling method - Google Patents
Small-size mica pipe coiling device, manufacturing device and coiling method Download PDFInfo
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- CN111421940A CN111421940A CN202010323935.9A CN202010323935A CN111421940A CN 111421940 A CN111421940 A CN 111421940A CN 202010323935 A CN202010323935 A CN 202010323935A CN 111421940 A CN111421940 A CN 111421940A
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- mica
- transmission mechanism
- mandrel
- cavity
- mica paper
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- 239000010445 mica Substances 0.000 title claims abstract description 136
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 138
- 230000005540 biological transmission Effects 0.000 claims abstract description 100
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 29
- 239000000853 adhesive Substances 0.000 claims description 21
- 230000001070 adhesive effect Effects 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 17
- 238000004026 adhesive bonding Methods 0.000 claims description 16
- 238000007598 dipping method Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009785 tube rolling Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
- B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B41/00—Arrangements for controlling or monitoring lamination processes; Safety arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/045—Slitting
Abstract
The invention discloses a small-size mica tube reeling device which can act on a core rod wound with mica paper to realize reeling of the mica paper into a tube, and comprises the following components: the first transmission mechanism is used for providing transmission force of the mandrel in a first direction; the second transmission mechanism acts on the mandril and is used for providing transmission force of the mandril in a second direction, and the second direction is opposite to the first direction; the first transmission mechanism and the second transmission mechanism are arranged oppositely up and down and form extrusion surfaces of the core rods, and the first transmission mechanism and the second transmission mechanism are matched to realize rolling of the mica paper on the core rods. The invention also provides a small-size mica tube coiling device which comprises the coiling device. The invention also provides a pipe coiling method of the small-size mica pipe. The invention has the advantages of simple equipment structure, high automation degree, stable quality, extremely small tolerance of the pipe diameter of the manufactured reelpipe, tight pipe wall and labor cost saving.
Description
Technical Field
The invention belongs to the technical field of manufacturing of layered products, and particularly relates to a small-size mica tube coiling device, a manufacturing device and a coiling method, which can be used for manufacturing small-diameter (the inner diameter is less than 4-10 mm, and the outer diameter is less than 8-20 mm) mica tubes.
Background
Various tubular parts (including mica tubes, epoxy glass cloth tubes, paper tubes and the like) made of non-metallic materials as base materials, in particular to mica tubes made of natural mica as base materials, have excellent performances of pressure resistance, folding resistance, corrosion resistance, impact resistance, lightning protection, electric arc protection, high insulation, low temperature resistance (below 60 ℃), high temperature resistance (250 ℃) and the like, and are widely applied to the fields of aerospace, aviation, war industry, nuclear power, lightning protection engineering, submarines, automobiles, shipbuilding and household appliances.
The manufacturing of the mica tube in the prior art is completed by a three-roller tube rolling machine, and the manufacturing method has many defects and mainly has the following problems:
1, the production process is completely manually operated, the efficiency is low, and the quality is unstable;
2, the rotating speeds of the upper roller and the lower roller of the tube coiling machine are the same, the processing precision error is caused, and the abrasion of a transmission system is caused, particularly when the linear speed of the upper roller is lower than that of the lower roller, the density of the mica tube is lower than the standard requirement;
3, because the gaps among the three rollers are large, the small-diameter mica tubes cannot be processed, and only rolling is carried out by manual operation, but the manually-made mica tubes are not only low in efficiency, but also loose in tube wall, and cannot meet the requirements of high and new fields.
Therefore, in order to solve the above technical problems, it is important to provide a rolling device, a manufacturing device and a rolling method for a small-sized mica tube, which are used for manufacturing a small-diameter mica tube to meet the requirements of high and new technologies that are developing day by day.
Disclosure of Invention
The invention aims to provide a small-size mica tube coiling device, a manufacturing device and a coiling method, which are used for solving the problems in the prior art.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
in one embodiment, a small-sized mica tube rolling device is provided, which can act on a mandrel wrapped with mica paper to roll the mica paper into a tube, and comprises:
the first transmission mechanism is used for providing transmission force of the mandrel in a first direction;
the second transmission mechanism acts on the mandril and is used for providing transmission force of the mandril in a second direction, and the second direction is opposite to the first direction;
the first transmission mechanism and the second transmission mechanism are arranged oppositely up and down and form extrusion surfaces of the core rods, and the first transmission mechanism and the second transmission mechanism are matched to realize rolling of the mica paper on the core rods.
As a further improvement of the present invention, the first transmission mechanism and the second transmission mechanism respectively include a plurality of transmission wheels and transmission belts disposed on the transmission wheels.
As a further improvement of the present invention, the transmission belt may be assembled from a material having a certain hardness, preferably a steel belt.
As a further improvement of the invention, the mica paper core rod further comprises a pressure adjusting mechanism, wherein the pressure adjusting mechanism is connected with and acts on the second transmission mechanism, and the second transmission mechanism moves in the up-and-down direction, so that the second transmission mechanism can provide a pressing force acting between the mica paper on the core rod.
As a further improvement of the present invention, the pressure adjusting mechanism includes a pressure regulator including a housing, a pressure rod, and an elastic member;
the shell is provided with a cavity;
the first end part of the pressure rod is arranged in the cavity and can be abutted against the inner wall of the cavity and slide, the second end part of the pressure rod protrudes out of the cavity, the first end part of the pressure rod divides the cavity into a first cavity and a second cavity, and the first cavity is provided with a one-way valve and an overflow valve;
an elastic piece is arranged between the first end of the pressure rod and the inner wall of the second chamber, and the pressure rod can reset under the elastic force of the elastic piece;
the second end part of the pressure rod is connected with the driving wheel of the second transmission mechanism and can drive the driving wheel to move up and down relative to the first transmission mechanism.
An embodiment of the present invention provides a small-sized mica tube manufacturing apparatus, including:
the gluing mechanism is used for gluing the mica paper and drying the adhesive;
the cutting mechanism is used for cutting the glued mica paper;
the core rod conveying mechanism is used for conveying the core rods for rolling the mica paper;
the small-size mica pipe coiling device is characterized in that the small-size mica pipe coiling device is arranged on the pipe body;
the control mechanism is respectively connected with the gluing mechanism, the cutting mechanism, the mandrel conveying mechanism, the first transmission mechanism, the second transmission mechanism and the pressure adjusting mechanism and is at least used for accurately controlling the gluing speed, the cutting size, the mandrel conveying speed, the first transmission speed, the second transmission speed and the pressure size.
As a further improvement of the invention, the mica tube rolling device further comprises an oven mechanism, wherein the oven mechanism is connected with the first transmission mechanism and the control mechanism and is used for curing the rolled mica tubes.
As a further improvement of the present invention, the gluing mechanism comprises:
the glue dipping tank is used for placing an adhesive;
the rotatable gumming roller is provided with a cylindrical glue solution attaching surface, and the gumming roller is partially immersed into a gumming tank and rotates along with the gumming roller to finish the coating of an adhesive on the mica paper;
the first drying cylinder is used for drying the first surface of the gummed mica paper;
the second drying cylinder is used for drying a second surface, opposite to the first surface, of the gummed mica paper;
and the conveying rollers are used for conveying the mica paper to paint the adhesive and transport the mica paper.
As a further improvement of the invention, the glue storage tank is arranged above the gumming tank and communicated with the gumming tank, and a control valve is also arranged between the glue storage tank and the gumming tank.
As a further improvement of the invention, the cutting mechanism comprises a support plate and a cutter arranged above the support plate, the support plate is used for bearing the mica paper, and the cutter cuts the mica paper under the control of the control mechanism.
As a further improvement of the present invention, the mandrel conveying mechanism includes a mandrel storage, a first mandrel pusher, a glue tank, a conveying track, and a second mandrel pusher, the mandrel storage has a mandrel outlet, the glue tank is disposed below the outlet, a felt is laid on an upper surface of the glue tank for gluing the mandrel, the first mandrel pusher is used for pushing the mandrel on the felt into the conveying track, and the second mandrel pusher is used for pushing the mandrel at the outlet of the conveying track to a position below the second transmission mechanism.
As a further improvement of the present invention, the first mandrel pusher and the second mandrel pusher respectively include a housing, a piston, and an elastic member;
comprises a shell, a piston and an elastic piece;
the shell is provided with a cavity;
the first end part of the piston is arranged in the cavity and can be abutted against the inner wall of the cavity and slide, the second end part of the piston protrudes out of the cavity, the cavity is divided into a first cavity and a second cavity by the first end part of the piston, an air inlet valve is arranged on the first cavity, and an exhaust valve is arranged on the second cavity;
an elastic piece is arranged between the first end of the piston and the inner wall of the second chamber, and the piston can reset under the elastic force of the elastic piece.
The invention also provides a pipe coiling method of the small-size mica pipe, which comprises the following steps: the mandrel wrapped with mica paper is applied to the surface of the mica paper by a rotating squeeze roll or a squeeze belt moving in a second direction during the transportation in the first direction, wherein the squeeze roll provides a force in the second direction of the mandrel, and the second direction is opposite to the first direction.
As a further improvement of the present invention,
compared with the prior art, the invention has the advantages that:
the small-size mica tube manufacturing device has the advantages of simple equipment structure, high automation degree, stable quality, extremely small tolerance of the diameter of the manufactured coiled tube, tight tube wall and labor cost saving, and is characterized in that:
1. the automation degree is high, the whole process from mica paper gumming to mica tube molding and curing is completed at one time through automatic control, the dwell time in the production process is only 1 second, and the production efficiency is very high;
2. the small-size mica pipe reeling device is composed of two groups of transmission mechanisms, the distance between the first transmission mechanism and the second transmission mechanism can be reduced to 0.1mm, and the first transmission mechanism and the second transmission mechanism can move relatively in the narrow gap, so that the diameter of the reeling pipe is the minimum, and the inner diameter of the reeling pipe can be reduced to 1 mm;
3. the labor cost is saved, 16 persons are needed to operate in one production line with the daily output of 400kg for producing the small-diameter mica tube according to the prior art, only 1 person is needed to produce the small-diameter mica tube by adopting the device and the method provided by the invention, and two production lines can be operated, so that the production efficiency is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a small-sized mica tube manufacturing apparatus according to an embodiment of the present application;
FIG. 2 is a schematic longitudinal sectional view of a core rod conveying mechanism in a small-sized mica tube manufacturing device according to an embodiment of the present application;
FIG. 3 is a schematic longitudinal cross-sectional view of a mandrel pusher in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a second transmission mechanism and a pressure adjustment mechanism in a small-sized mica tube manufacturing device according to an embodiment of the present application;
FIG. 5 is a schematic longitudinal cross-sectional view of a pressure regulator according to an embodiment of the present application;
FIG. 6 is a rear view of a pressure regulator according to an embodiment of the present application;
fig. 7 is a process flow diagram of a pipe coiling method for a small-sized mica pipe according to an embodiment of the present application.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
Referring to fig. 1, the invention provides a small-size mica tube manufacturing device, which can be used for rolling mica paper into tubes, and comprises a gluing mechanism, a cutting mechanism, a mandrel conveying mechanism, a transmission mechanism, a pressure adjusting mechanism, a control mechanism and an oven mechanism.
The gluing mechanism is used for gluing the mica paper and drying an adhesive, and comprises a glue dipping tank 11, a glue solution storage box 12, a glue dipping roller 13, a first drying cylinder 14, a second drying cylinder 15 and a plurality of conveying rollers for conveying the mica paper.
The glue dipping tank 11 is used for placing the adhesive, the glue dipping tank 11 is communicated with an overflow pipe 111, and a recovery barrel (not shown) is placed below the other end of the overflow pipe 111 and used for receiving the overflowed adhesive.
The glue solution storage tank 12 is arranged above the glue dipping tank 11 and is communicated with the glue dipping tank 11 through a delivery pipe 121, and the delivery pipe 121 is provided with a control valve 122.
The gumming roller 13 can be rotatably arranged and is provided with a cylindrical gum solution attaching surface, the gumming roller 13 is partially immersed into the gumming tank 11, and the mica paper rotates along with the gumming roller 13 to finish the coating of the adhesive on the mica paper.
The gumming method is that the adhesive in the adhesive storage tank 12 is conveyed to the gumming tank 11, and is smeared on the mica paper by the gumming roller 13, and the redundant adhesive in the gumming tank 11 overflows from the overflow pipe 111 to the recycling bin, so that the liquid level is kept unchanged, and the gumming amount of the mica paper is stable.
And a first drying cylinder 14 for drying the first surface of the gummed mica paper.
And a second drying cylinder 15 for drying a second surface of the impregnated mica paper opposite to the first surface.
The mica paper is conveyed from a first conveying roller 16 to a glue dipping roller 11 for gluing, then conveyed to a first drying cylinder 14 for first surface drying through a second conveying roller 17, then dried on a second surface through a second drying cylinder 15, finally drawn to the lower part of a third conveying roller 18, and conveyed to a cutting mechanism through the third conveying roller 18.
The cutting mechanism is used for cutting the glued mica paper and comprises a supporting plate 21 and a cutter 22 arranged above the supporting plate, the supporting plate 21 is arranged below the third conveying roller 18 and used for bearing the mica paper, the cutter 22 is arranged behind the third conveying roller 18 and can cut the mica paper in a corresponding size under the control of the control mechanism, and the cut mica paper is conveyed to the conveying track outlet of the mandrel conveying mechanism through the fourth conveying roller 19.
Referring to fig. 1 and 2, the mandrel bar conveying mechanism for conveying the mandrel bars wound up with mica paper includes a mandrel bar storage 31, a first mandrel pusher 32, a glue tank 33, a conveying rail 34, and a second mandrel pusher 35. The mandrel storage 31 has a mandrel outlet 311; the glue tank 33 is arranged below the outlet 311, the felt 331 is laid on the upper surface of the glue tank 33, the felt 331 can be immersed by the glue in the glue tank 33, and after the mandrel falls from the outlet 311 to the felt 331, the felt 331 can glue the mandrel; the conveying track 34 is arranged on one side of the glue tank 33, and an outlet of the conveying track 34 is positioned above the supporting plate behind the cutter 22 and further above the first transmission mechanism; the first mandrel pusher 32 is arranged on the other side of the glue groove 33 and used for pushing the mandrels on the felt 331 into the conveying track 34, the width of the conveying track 34 is approximately the same as the outer diameter of the mandrels, glue can be automatically coated on the outer walls of the mandrels in the rolling process, so that the glue-dipped mica paper on the innermost layer is tightly adhered to the mandrels, the mica tubes cannot be loosened due to slipping in the rolling process, the second mandrel pusher 35 is arranged on the supporting plate 21 and behind the fourth conveying roller 19, a channel for passing the mica paper is arranged between the second mandrel pusher 35 and the supporting plate 21, and the second mandrel pusher 35 is used for pushing the mandrels to the lower portion of the first roller of the second conveying mechanism. The core rod is very light, e.g. having a diameter of 0.4cm and a length of 110cm of only 108 g, and is placed on the impregnated mica paper, and the second core rod pusher 35 is pushed below the first drum because it slips with the first steel belt 412.
Referring to fig. 2 and 3, the first mandrel pusher 32 includes a pusher housing 321, a piston, and a first spring 323; the propeller housing 321 has a detachable housing cover, a sealing ring is arranged between the housing cover and the housing wall, and a chamber is arranged in the propeller housing 321; the first end portion 3221 of the piston is arranged in the cavity and can abut against the inner wall of the cavity and slide, a sealing ring is also arranged between the first end portion 3221 of the piston and the wall of the cavity, the second end portion 3222 of the piston protrudes out of the cavity, the cavity is divided into a first cavity and a second cavity by the first end portion 3221 of the piston, an air inlet valve 3211 is arranged on the first cavity, and an air outlet valve 3212 is arranged on the second cavity; a first spring 323 is disposed between the first end 3221 of the piston and the inner wall of the second chamber, and the piston can be reset by the elastic force of the first spring 323.
The second mandrel pusher 35 has the same structure as the first mandrel pusher 32.
However, the distance between the outlet 311 of the mandrel store and the felt 331 may be such that the second end 3222 of the piston passes through and the candidate mandrels in the mandrel store do not fall off during the passage.
The control mechanism sends out an instruction, compressed air enters the first cavity through the air inlet valve 3211 to push the piston to the second cavity, the core rod rolls on the felt 331 under the action of the piston and is coated with glue and then falls onto the steel belt of the first transmission mechanism along the conveying track 34, the air inlet valve 3211 is closed, the air outlet valve 3212 is opened, the compressed air is discharged from the second cavity, and the piston is reset under the action of the elastic force of the first spring to prepare for next pushing.
Referring to fig. 1 and 4, the transmission mechanism includes a first transmission mechanism and a second transmission mechanism which are arranged opposite to each other, the first transmission mechanism is arranged below the mandrel conveying mechanism and is used for providing a transmission force in a first direction of the mandrel, the second transmission mechanism acts on the mandrel and is used for providing a transmission force in a second direction of the mandrel, wherein the second direction is opposite to the first direction, and the first transmission mechanism and the second transmission mechanism cooperate to realize the rolling of the mica paper on the mandrel; the first transmission mechanism and the second transmission mechanism form a relative triangle, the mica paper pasted on the mandrel is quickly rolled up by the first transmission mechanism and the second transmission mechanism in relative motion, the pressure of the roller of the second transmission mechanism acting on the surface of the mica tube is increased under the action of the pressure regulator, the rolling process is completed under the larger gravity, and the outer wall of the mica tube is more compact.
The first transmission mechanism comprises three transmission wheels 411 arranged in an isosceles right triangle shape and a first steel belt 412 sleeved on the outer sides of the transmission wheels 411, a supporting plate 21 of the cutting mechanism extends to the first transmission mechanism, and the first steel belt 412 is transmitted on a part of the supporting plate 21.
The second transmission mechanism comprises three rollers 421 arranged in a triangular shape, and a second steel belt 422 sleeved on the rollers 421, wherein the pressure regulators 51 are arranged on the first two rollers 421 (the roller close to the first steel belt 412 is called a first roller according to the distance from the first steel belt 412, and the other roller is called a second roller) close to the mandrel conveying mechanism, so that the two rollers can move in the up-and-down direction, the second steel belt 422 on the rollers can be matched with the first steel belt 412, and the pressing force between the mica paper on the mandrel can be provided.
Referring to fig. 5 and 6, the pressure regulator 51 includes a regulator housing 511, a pressure lever, and a second spring 513; the regulator housing 511 has a removable housing cover with a seal disposed between the housing cover and the housing wall, with a chamber disposed within the regulator housing 511; the first end 5121 of the pressure rod is arranged in the cavity and can be abutted against the inner wall of the cavity and slide, a sealing ring is also arranged between the first end 5121 of the pressure rod and the shell wall, the second end 5122 of the pressure rod protrudes out of the cavity, the first end 5121 of the pressure rod divides the cavity into a first cavity and a second cavity, and the first cavity is provided with a check valve 5111 and an overflow valve 5112; a second spring 513 is disposed between the first end 5121 of the pressure rod and the inner wall of the second chamber, and the pressure rod can be restored by the elastic force of the second spring 513.
The control mechanism sends out an instruction, hydraulic oil enters the first cavity through the check valve 5111, the pressure rod is pushed towards the second cavity (downward in the vertical direction in fig. 1), the roller is pressed on the surface of the mica paper winding mandrel, after winding is completed, the check valve 5111 is closed, the overflow valve 5112 is opened, the hydraulic oil overflows from the first cavity, the pressure rod is bounced under the elastic force of the second spring, and the mica paper winding mandrel is conveniently conveyed to the oven mechanism along with the first steel belt 412.
Referring to fig. 1, the oven mechanism is connected with the first transmission mechanism through a sliding plate, and is used for curing the rolled mica tubes, and the oven mechanism comprises an oven 61, a first chain wheel 62 and a second chain wheel 63, wherein the first chain wheel 62 is arranged at the input end of the oven 61, the second chain wheel 63 is arranged at the output end of the oven 61, the two chain wheels are in transmission in a matched manner through a conveying belt, and the mica tubes formed by rolling the mica paper enter the oven through the conveying belt to be baked and dried.
The control mechanism is respectively connected with the gumming mechanism, the cutting mechanism, the core rod conveying mechanism, the transmission mechanism, the pressure adjusting mechanism and the oven mechanism and is used for controlling the linear speed of the gumming roller, the linear speed of the conveying roller, the surface temperature and the linear speed of the first drying cylinder and the second drying cylinder, the cutting length of the gummed mica paper, the core rod pushing time, the pushing and resetting time of the core rod pusher, the linear speed of the second transmission mechanism, the linear speed of the first transmission mechanism, the lifting time of the first roller on the second transmission mechanism, the temperature in the oven, the conveying belt running speed of the oven and the like.
The various components of the device can be fixed by using an external auxiliary bracket.
Referring to fig. 7, the present invention further provides a winding method of a small-sized mica tube, which is performed by using the above-mentioned small-sized mica tube manufacturing apparatus, and includes:
s 1: preparing an adhesive, namely stirring 20-30 parts of epoxy resin, 0.4-0.6 part of curing agent (accounting for 2 percent of the epoxy resin) and 70-80 parts of toluene in a container for about 30 minutes, and then gluing and drying mica paper;
s 2: cutting the mica paper according to the diameter of the rolled mica pipe, and conveying the mica paper to a first transmission mechanism;
s 3: coating glue on the surface of the core rod, pushing the core rod to the first transmission mechanism, starting the first transmission mechanism and the second transmission mechanism, adjusting the pressure regulator, and rolling the mica paper, wherein the transmission speed ratio of the first transmission mechanism to the second transmission mechanism is 1 (1.5-2);
s4: and drying and curing the rolled mica tube.
Example (b): manufacture of inside diameter
Outer diameter
A mica tube with a length of 1000 mm.
S1: selecting mica paper with the model number of 506 type natural muscovite paper, the thickness of 0.07mm and the width of 1020 mm;
s2: preparing an adhesive, namely stirring 30kg of 634 epoxy resin, 0.6kg of 594 curing agent and 70kg of toluene in a container at normal temperature for 30 minutes;
s3: pouring the adhesive obtained in S2 into a glue storage box 12 of a small-size mica tube manufacturing device, opening a control valve 122, and feeding the adhesive into a glue dipping tank 11 through a delivery pipe 121;
s4: setting technological parameters of a small-size mica tube manufacturing device, comprising the following steps: the linear speed of the gum dipping roller is 0.2m/s, and the linear speeds of the conveying roller, the first drying cylinder and the second drying cylinder are 0.1 m/s; the surface temperature of the first drying cylinder and the second drying cylinder is 120 +/-5 ℃;
s4.1: setting the starting time of the cutter, the mandrel storage device, the mandrel pusher and the pressure regulator to be operated once every 109.4 seconds; the calculation basis is as follows: mica pipe inner diameter
Outer diameter
Wall thickness 3mm, intermediate diameter
Circumference of medium diameter
The wall thickness of the mica tube is 3mm, 53.6 layers of impregnated mica paper with the thickness of 0.07mm (the compression ratio is calculated according to 1: 0.8) are required, the average length of each layer is 20.42mm, and the total length of the impregnated mica paper is 1,094 mm; the linear speed of a conveying roller and a drying cylinder of the small-size mica tube manufacturing device is set to be 0.1m/s, so that the cutting knife, the core rod storage device, the core rod propeller and the pressure regulator are operated once in 109.4 seconds each time;
s4.2: the pushing time of the core rod by the first core rod pusher is 0.1 second later than the releasing time of the core rod by the core rod storage;
s4.3: the second mandrel pusher delays the mandrel for 0.1 second compared with s 4.2;
s4.4: the lifting time of the roller by the pressure regulator is 0.1 second later than that of S4.3;
s4.5: the surface pressure of the second end of the piston of the first mandrel pusher and the second mandrel pusher was set to 0.5kg/cm2；
S4: 6: the surface pressure of the second end of the pressure rod of the pressure regulator is set to 5kg/cm2；
S4: 7: setting the linear speed of the first transmission mechanism steel belt to be 0.11 m/s;
s4: 8: setting the linear speed of the steel belt of the second transmission mechanism to be 0.2 m/s;
s4.9: setting the linear speed of the oven conveyer belt to 0.11 m/s;
s4.10: setting the temperature of the front zone of the oven to be 85 +/-5 ℃, the temperature of the middle zone to be 140 +/-5 ℃ and the temperature of the rear zone to be 70 +/-5 ℃;
s5: 5020 liquid glue is filled into a glue groove, and the felt is immersed on the liquid surface;
s6: and starting the device.
Wherein the mica paper is gummed in the step s3, and the mica paper is dipped into the micaThe glue content of the paper is 6-7% (namely when the paper is 100 cm)2When the weight of the mica paper is 1.6g, the weight after dipping and removing the solvent is 1.69 g-1.71 g);
further, when the content of mica paper adhesive is less than 6%, the linear speed of the glue dipping roller is increased under the condition that the proportion of the binder is unchanged, and when the content of mica paper adhesive is more than 7%, the linear speed of the glue dipping roller is decreased;
referring to table 1, table 1 shows the data comparison between the mica tube manufactured in this example and the mica tube manufactured in the prior art with the same diameter, length and thickness, and the experimental data is as follows.
TABLE 1
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a small-size mica pipe reelpipe device, can act on the plug that has the mica paper of coiling, realizes the roll system pipe of mica paper which characterized in that includes:
the first transmission mechanism is used for providing transmission force of the mandrel in a first direction;
the second transmission mechanism acts on the mandril and is used for providing transmission force of the mandril in a second direction, and the second direction is opposite to the first direction;
the first transmission mechanism and the second transmission mechanism are arranged oppositely up and down and form extrusion surfaces of the core rods, and the first transmission mechanism and the second transmission mechanism are matched to realize rolling of the mica paper on the core rods.
2. The small-sized mica tube reeling device according to claim 1, wherein the first transmission mechanism and the second transmission mechanism respectively comprise a plurality of transmission wheels and transmission belts arranged on the transmission wheels.
3. The small-sized mica tube reeling device according to claim 1, further comprising a pressure adjusting mechanism, wherein the pressure adjusting mechanism is connected with and acts on the second transmission mechanism to realize the movement of the second transmission mechanism in the up-and-down direction, so that the second transmission mechanism can provide a pressing force between the mica paper acting on the mandrel.
4. The small scale mica tube reeling device according to claim 3, wherein the pressure adjusting mechanism comprises a pressure regulator, the pressure regulator comprising a housing, a pressure rod and a resilient member;
the shell is provided with a cavity;
the first end part of the pressure rod is arranged in the cavity and can be abutted against the inner wall of the cavity and slide, the second end part of the pressure rod protrudes out of the cavity, the first end part of the pressure rod divides the cavity into a first cavity and a second cavity, and the first cavity is provided with a one-way valve and an overflow valve;
an elastic piece is arranged between the first end of the pressure rod and the inner wall of the second chamber, and the pressure rod can reset under the elastic force of the elastic piece;
the second end part of the pressure rod is connected with the driving wheel of the second transmission mechanism and can drive the driving wheel to move up and down relative to the first transmission mechanism.
5. A small-size mica tube manufacturing device is characterized by comprising:
the gluing mechanism is used for gluing the mica paper and drying the adhesive;
the cutting mechanism is used for cutting the glued mica paper;
the core rod conveying mechanism is used for conveying the core rods for rolling the mica paper;
the small-sized mica tube roller tube device as recited in any one of claims 1 to 4;
the control mechanism is respectively connected with the gluing mechanism, the cutting mechanism, the mandrel conveying mechanism, the first transmission mechanism, the second transmission mechanism and the pressure adjusting mechanism and is at least used for accurately controlling the gluing speed, the cutting size, the mandrel conveying speed, the first transmission speed, the second transmission speed and the pressure size.
6. The small-scale mica tube manufacturing device according to claim 5, wherein the glue applying mechanism comprises:
the glue dipping tank is used for placing an adhesive;
the glue solution storage tank is arranged above the gumming tank and communicated with the gumming tank, and a control valve is also arranged between the glue solution storage tank and the gumming tank;
the rotatable gumming roller is provided with a cylindrical glue solution attaching surface, and the gumming roller is partially immersed into a gumming tank and rotates along with the gumming roller to finish the coating of an adhesive on the mica paper;
the first drying cylinder is used for drying the first surface of the gummed mica paper;
the second drying cylinder is used for drying a second surface, opposite to the first surface, of the gummed mica paper;
and the conveying rollers are used for conveying the mica paper to paint the adhesive and transport the mica paper.
7. The manufacturing device of small-size mica tubes as set forth in claim 5, wherein the cutting mechanism comprises a support plate and a cutter disposed above the support plate, the support plate is used for carrying mica paper, and the cutter cuts the mica paper under the control of the control mechanism.
8. The apparatus for manufacturing small-sized mica tubes according to claim 5, wherein the mandrel conveying mechanism comprises a mandrel storage, a first mandrel pusher, a glue tank, a conveying track and a second mandrel pusher, the mandrel storage has a mandrel outlet, the glue tank is arranged below the outlet, felt is laid on the upper surface of the glue tank for gluing the mandrels, the first mandrel pusher is used for pushing the mandrels on the felt into the conveying track, and the second mandrel pusher is used for pushing the mandrels at the outlet of the conveying track to be below the second transmission mechanism.
9. The small-scale mica tube manufacturing apparatus of claim 8, wherein the first mandrel pusher and the second mandrel pusher respectively comprise a housing, a piston, and an elastic member;
the shell is provided with a cavity;
the first end part of the piston is arranged in the cavity and can be abutted against the inner wall of the cavity and slide, the second end part of the piston protrudes out of the cavity, the cavity is divided into a first cavity and a second cavity by the first end part of the piston, an air inlet valve is arranged on the first cavity, and an exhaust valve is arranged on the second cavity;
an elastic piece is arranged between the first end of the piston and the inner wall of the second chamber, and the piston can reset under the elastic force of the elastic piece.
10. A method for coiling a small-size mica pipe is characterized by comprising the following steps: the mandrel wrapped with mica paper is applied to the surface of the mica paper by a rotating squeeze roll or a squeeze belt moving in a second direction during the transportation in the first direction, wherein the squeeze roll provides a force in the second direction of the mandrel, and the second direction is opposite to the first direction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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