CN108081641A - A kind of processing unit (plant) and processing method of full thread overlength screw rod - Google Patents
A kind of processing unit (plant) and processing method of full thread overlength screw rod Download PDFInfo
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- CN108081641A CN108081641A CN201711082030.1A CN201711082030A CN108081641A CN 108081641 A CN108081641 A CN 108081641A CN 201711082030 A CN201711082030 A CN 201711082030A CN 108081641 A CN108081641 A CN 108081641A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
- B29C70/526—Pultrusion dies, e.g. dies with moving or rotating parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
- B29C70/527—Pulling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
- B29C70/528—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a kind of processing unit (plant)s of full thread overlength screw rod, including rack, driving motor speed reducer and processing unit, the driving motor speed reducer is fixed at bottom of the frame, the processing unit is arranged on the top of rack, the processing unit includes symmetrically arranged two processing groups, the present invention discloses a kind of processing methods of full thread overlength screw rod, had using processing unit (plant) of the present invention and processing method processing gained screw rod product corrosion-resistant, insulation, it is heat-insulated, without magnetization, high intensity, outstanding advantages of fire-retardant characteristic, meets the needs of under certain environmental conditions, suitable for electric power, it is metallurgical, ocean engineering, chemical industry, energy-saving residence, traffic, the particular/special requirement in the fields such as communication.
Description
Technical field
The present invention relates to a kind of corrosion-resistant FRP material full thread overlength screw rod of insulating processing unit (plant) and one-time continuous into
The processing method of shape more particularly to a kind of processing unit (plant) and processing method of full thread overlength screw rod, belong to special fastener
Technical field.
Background technology
Screw rod is widely used in every field or even daily life with nut or screw-internal thread fit as universal fasteners
In, the fastener used at present is mostly manufactured using metal, because manufacturing process is ripe, price is low, intensity is high, specification kind is complete
And it is used widely；In the special dimensions such as electric power, metallurgy, ocean engineering, chemical industry, energy-saving residence, traffic, communication, it is desirable that
Fastener is in addition to having the universal performance of general fastener, it is also necessary to have it is corrosion-resistant, insulation, it is heat-insulated, without magnetized special
Performance requirement, metal material is due to the limitation of its material self character, it is difficult to meet the requirements, plastic fastener disclosure satisfy that corrosion resistant
Its application that the shortcomings that erosion insulate, is heat-insulated, without magnetized requirement, but intensity is not low fire-retardant limits；Therefore corrosion resistant is both met
Erosion, insulation, it is heat-insulated, without magnetization, and meet simultaneously high intensity, flame-retardancy requirements thermosetting property nonmetallic composite fastener in recent years
It is very vigorous to carry out the market demand；FRP material, is a kind of fibre reinforced composites, existing CFRP, GFRP, AFRP, BFRP etc.,
FRP composite materials are the high-performance section bar material formed after being mixed according to a certain percentage with basis material resin by fibrous material, matter
Light and hard, non-conductive, high mechanical strength is corrosion-resistant；Since same with thermosetting compound material elasticity modulus is low, plasticity hardly occurs
Deformation, thus the method for rolled thread, the thread rolling of metal screw generally use is not suitable for composite material, such screw rod processing is more at present
Using the body of rod of composite material pultrusion as semi-finished product, screw thread is processed on body of rod surface using the method for mechanical processing,
The mechanical processing of long thin bar body is also a problem even for metal material, controls the work piece body of rod in process
Deform extremely difficult, and the machining property of composite material is more worse than metal material, therefore long bolt can process product
Length cannot be too long, yield rate is also very low.
The content of the invention
To solve the deficiencies in the prior art, the present invention provides a kind of processing unit (plant) of full thread overlength screw rod, while openly
A kind of processing method of full thread overlength screw rod, the pultrusion of same with thermosetting compound material and screw forming are combined into one,
Screw thread is directly formed on its surface while extruder pulls up and squeezes out the body of rod, theoretically there is no limit have spiro rod length
The advantages of production efficiency is high, environmental protection, is cut off simultaneously because avoiding reinforcing fiber in composite material when secondary mechanical is processed
Influence to screw thread bearing capacity, fastener mechanical property obtain significantly improving comprehensively；With the difference of existing common pultrude process
It is：Common pultrude process can only produce length direction section using pultrusion die fixed, that disengaging mouth-shaped is consistent
The uniform section bar of shape, the mold in processing unit (plant) of the present invention is using opposite opened mould, and mold is by multiple die unit blocks
Composition, die unit block is mounted on the chain rotated, thus can form irregular thread shape in product surface；At present
This mold and the processing method using this mold processing screw rod are not found.
The technical solution adopted in the present invention is：
A kind of processing unit (plant) of full thread overlength screw rod, including rack, driving motor speed reducer and processing unit, the driving electricity
Machine speed reducer is fixed at bottom of the frame, and the processing unit is arranged on the top of rack, and the processing unit is included side by side
Symmetrically arranged two processing groups, each processing group include drive gear, bearing housing and two drive sprockets, two processing groups
In the intermeshing of two drive gears be sequentially connected, the output shaft of one of drive gear and driving motor speed reducer is coaxial
It is fixedly connected, the drive gear in each processing group and one of drive sprocket of the processing group are coaxially connected, the bearing
Case is fixed in rack, the drive gear in each processing group and the axis between one of drive sprocket of the processing group
It passes through in the bearing housing and is rotatablely connected with bearing housing, chain is connected between two drive sprockets in each processing group
Item, the chain are provided with several moulds on the chain by two drive sprocket driving movements along chain length direction
Have cell block, screw thread cavity is formed on the lateral surface of each die unit block, the die unit block one of two processing groups is a pair of
It should set, the screw thread cavity split on the corresponding die unit block of two between two processing groups forms processing screw-type
Chamber.
As present invention further optimization, set on the inside of the chain of each processing group for on chain and chain
The hydraulic compressing device that die unit block pressurizes, the compression aspect of the hydraulic compressing device in two processing groups is opposite to be set
It puts, the hydraulic compressing device in two processing groups respectively pressurizes to the die unit block on chain and chain, ensures pairing
Die unit block tight connecting, and provide enough briquetting pressures.
As present invention further optimization, heating is set in the chain of each processing group and the lower section of die unit block
Plate for being heated to chain and die unit block, improves heating effect.
As present invention further optimization, heat preservation is set in the chain of each processing group and the top of die unit block
Cover, effectively improves heating effect of the heating plate to chain and die unit block.
As present invention further optimization, processing screw thread cavity is formed in the die unit block split of two processing groups
Lower section is provided with bottom guide, forms to be provided with above processing screw thread cavity in the die unit block split of two processing groups and lead
Plate, upper guide plate and bottom guide are used to that hydraulic compressing device to be coordinated to pressurize the die unit block on chain and chain.
As present invention further optimization, phase is respectively formed on the opposite face of the die unit block of two processing groups
The positioning pin and locating slot mutually coordinated, when the die unit block split of two processing groups forms processing screw thread cavity, wherein one
Positioning pin on the die unit block of a processing group is inserted into the locating slot on the die unit block of another processing group；It is matching
Positioning pin and locating slot is set to help to improve the die unit block split composition processing of two processing groups between die unit block
Tight connecting degree during screw thread cavity, in practical application, positioning pin can also be set between front and rear adjacent molds cell block
And locating slot.
As present invention further optimization, the die unit block is H13 or 8407 hot-working die hard steel
Material.
As present invention further optimization, the length of the die unit block is processed thread pitch, chain section
Away from integral multiple.
A kind of processing method of full thread overlength screw rod, comprises the following steps：
（1）Processing unit (plant) prepares：Die unit block, die unit are made using H13 or 8407 hot-working die hard Steel materials
The length of block is the integral multiple of processed thread pitch, chain pitch, and the appearance and size of each die unit block is identical, with chain
The position of connection is identical with hole, the processing and fabricating screw thread cavity on the lateral surface of die unit block, polishing, polishing, in mold list
Locating and machining pin and locating slot on first block, two that the die unit block processed is mounted on to two processing groups one by one are equidirectional
On the chain of movement, heating plate is set in the chain of each processing group and the lower section of die unit block, in the chain of each processing group
The hydraulic compressing device to pressurize to the die unit block on chain and chain is set on the inside of item, in two processing groups
The compression aspect of hydraulic compressing device is oppositely arranged, and is checked on two corresponding die unit blocks being located between two processing groups
The split of screw thread cavity form processing screw thread cavity after identical situation and chain operation situation, start heating plate after it is spare；
（2）Select flame-retardant resin and be raw material with the fiber of selected resin complete, added in injecting glue slot configured it is fire-retardant
Type resin, and it is thoroughly mixed uniformly for use, multiply reinforcing fiber is passed through into threading board by the requirement calculated, immerses note
Then glue groove forms the whole strand fibre bundle of circular cross-section and the complex of resin by piece pre-forming die；
（3）The complex of fibre bundle and resin is made to pass through step under the traction of caterpillar tractor（1）Middle processing unit (plant) adds
Work screw thread cavity, hauling speed are matched by translational speed of the automatic control system automatically with chain in processing unit (plant)；
（4）Using the heating plate set below chain and die unit block to the processing fibre bundle of screw-type intracavitary and answering for resin
Zoarium is heating and curing, and makes the complex of the fibre bundle after the demoulding and resin under the action of processing unit (plant) processes screw thread cavity
The continuous screw thread of surface self-assembling formation；
（5）According to the fibre bundle and the complex of resin after the cutting demoulding of required length, screw rod product is made.
As the further preferred of the method for the present invention, step（4）The hardening time being heating and curing is 3.5 minutes,
Solidification temperature is 150 DEG C.
The beneficial effects of the present invention are：The pultrusion of same with thermosetting compound material and screw forming are combined into one, i.e.,
Screw thread is directly formed on its surface while extruder pulls up and squeezes out the body of rod, theoretically there is no limit have life to spiro rod length
The advantages of efficient, environmentally friendly is produced, is cut off simultaneously because avoiding reinforcing fiber in composite material when secondary mechanical is processed pair
The influence of screw thread bearing capacity, fastener mechanical property obtain significantly improving comprehensively；Difference with existing common pultrude process exists
In：Common pultrude process can only produce length direction section shape using pultrusion die fixed, that disengaging mouth-shaped is consistent
The uniform section bar of shape, the mold in processing unit (plant) of the present invention is using opposite opened mould, and mold is by multiple die unit block groups
Into die unit block is mounted on the chain rotated, thus can form irregular thread shape in product surface；Do not have at present
This mold and the processing method using this mold processing screw rod are found, using processing unit (plant) of the present invention and processing method
Processing gained screw rod product has outstanding advantages of corrosion-resistant, insulation, heat-insulated, without magnetization, high intensity, fire-retardant characteristic, meets
Demand under certain environmental conditions, suitable for fields such as electric power, metallurgy, ocean engineering, chemical industry, energy-saving residence, traffic, communications
Particular/special requirement.
Description of the drawings：
Fig. 1 is the side structure schematic view of processing unit (plant) of the present invention；
Fig. 2 is the overlooking the structure diagram of processing unit (plant) of the present invention；
Fig. 3 is that the screw thread cavity split on two corresponding die unit blocks between two processing groups of the invention forms processing screw thread
Primary structure schematic diagram after cavity；
Main Reference Numerals meaning is as follows in figure：
1- pre-soaked resin fibre bundles, 2- drive sprockets, 3- die unit blocks, 4- hydraulic compressing devices, 5- screw rod products, 6- machines
Frame, 7- driving motor speed reducers, 8- drive gears, 9- bearing housings, 10- bottom guides, 11- upper guide plates, 12- chains, 13- positioning
Pin, 14- processing screw thread cavities, 15- heating plates.
Specific embodiment：
Specific introduction is done to the present invention with reference to the accompanying drawings and examples.
As shown in Figs. 1-3：The present embodiment is a kind of processing unit (plant) of full thread overlength screw rod, including rack 6, driving motor
Speed reducer 7 and processing unit, driving motor speed reducer 7 are fixed at 6 bottom of rack, and processing unit is arranged on the top of rack 6
Portion, processing unit include two processing groups of symmetrically arranged side by side, and each processing group includes drive gear 8, bearing housing 9 and two
A drive sprocket 2, two drive gears 8 intermeshing in two processing groups are sequentially connected, and one of drive gear 8 is with driving
The output shaft of dynamic motor reducer 7 is fixedly and coaxially connected, the drive gear 8 in each processing group and the processing group one of them
Drive sprocket 2 is coaxially connected, and bearing housing 9 is fixed in rack 6, the drive gear 8 in each processing group and the processing group
One of drive sprocket 2 between axis pass through in bearing housing 9 and be rotatablely connected with bearing housing 9, in each processing group
Two drive sprockets 2 between be connected with chain 12, chain 12 is by two driving movements of drive sprockets 2, the edge on chain 12
12 length direction of chain is provided with several die unit blocks 3, and screw-type is formed on the lateral surface of each die unit block 3
Chamber, the die unit block 3 of two processing groups, which corresponds, to be set, two corresponding die unit blocks between two processing groups
Screw thread cavity split on 3 forms processing screw thread cavity 14；The present embodiment is driven by driving motor speed reducer 7 in processing group
Drive gear 8 rotates, and the drive gear 8 in processing group, which rotates, drives drive sprocket 2 to rotate, and drive sprocket 2, which rotates, drives chain
12 and chain 12 on die unit block 3 move；Pre-soaked resin fibre bundle 1 enters from wherein one end of processing screw thread cavity 14,
Then from the other end discharge of processing screw thread cavity 14, screw rod product 5 is made.
The present embodiment is set in 12 inside of chain of each processing group for the die unit on chain 12 and chain 12
The hydraulic compressing device 4 that block 3 pressurizes, the compression aspect of the hydraulic compressing device 4 in two processing groups are oppositely arranged, two
Hydraulic compressing device 4 in processing group respectively pressurizes to the die unit block 3 on chain 12 and chain 12, ensures pairing
3 tight connecting of die unit block, and enough briquetting pressures are provided.
The present embodiment sets heating plate 15 in the chain 12 of each processing group and the lower section of die unit block 3, for chain
Item 12 and die unit block 3 are heated, and improve heating effect.
In practical application, insulation cover can be set in the chain 12 of each processing group and the top of die unit block 3, have
Effect improves heating effect of the heating plate 15 to chain 12 and die unit block 3.
Under the present embodiment is provided in the lower section of 3 split of the die unit block composition processing screw thread cavity 14 of two processing groups
Guide plate 10, the top that processing screw thread cavity 14 is formed in 3 split of die unit block of two processing groups are provided with upper guide plate 11, on
Guide plate 11 and bottom guide 10 are used to that hydraulic compressing device 4 to be coordinated to pressurize the die unit block 3 on chain 12 and chain 12.
The present embodiment is respectively formed with the positioning pin of mutual cooperation on the opposite face of the die unit block 3 of two processing groups
13 and locating slot, when 3 split of die unit block of two processing groups forms processing screw thread cavity 14, one of processing group
Positioning pin 13 on die unit block 3 is inserted into the locating slot on the die unit block 3 of another processing group；In pairing mold list
Positioning pin 13 and locating slot is set to help to improve 3 split of the die unit block composition processing spiral shell of two processing groups between first block 3
Tight connecting degree during line cavity 14, in practical application, positioning pin can also be set between front and rear adjacent molds cell block 3
13 and locating slot.
Die unit block 3 in the present embodiment is H13 hot-working die hard Steel materials, in practical application, can also
Select 8407 hot-working die hard Steel materials.
The length of die unit block 3 is processed thread pitch, the integral multiple of 12 pitch of chain in the present embodiment.
A kind of processing method of full thread overlength screw rod, comprises the following steps：
（1）Processing unit (plant) prepares：Die unit block 3, die unit are made using H13 or 8407 hot-working die hard Steel materials
The length of block 3 is processed thread pitch, the integral multiple of 12 pitch of chain, and the appearance and size of each die unit block 3 is identical, with
The position that chain 12 connects is identical with hole, the processing and fabricating screw thread cavity on the lateral surface of die unit block 3, polishing, polishing,
The die unit block 3 processed is mounted on two processing groups by locating and machining pin 13 and locating slot on die unit block 3 one by one
On the chain 12 of two equidirectional movements, heating plate 15 is set in the chain 12 of each processing group and the lower section of die unit block 3,
In 12 inside of chain of each processing group, the hydraulic pressure to pressurize to the die unit block 3 on chain 12 and chain 12 is set
Pressing device 4, the compression aspect of the hydraulic compressing device 4 in two processing groups are oppositely arranged, check be located at two processing groups it
Between two corresponding die unit blocks 3 on the split of screw thread cavity form the identical situation after processing screw thread cavity 14, Yi Jilian
12 working order of item, start heating plate 15 after it is spare；
（2）Select flame-retardant resin and be raw material with the fiber of selected resin complete, added in injecting glue slot configured it is fire-retardant
Type resin has added in resin, fire retardant and curing agent by formula in the flame-retardant resin configured and has been matched with resin type
Inner pattern releasing agent applicable；And it is thoroughly mixed uniformly for use, multiply reinforcing fiber is passed through into threading board, leaching by the requirement calculated
Enter injecting glue slot, the whole strand fibre bundle of circular cross-section and the complex of resin are then formed by piece pre-forming die；
（3）The complex of fibre bundle and resin is made to pass through step under the traction of caterpillar tractor（1）Middle processing unit (plant) adds
Work screw thread cavity 14, hauling speed are matched by translational speed of the automatic control system automatically with chain in processing unit (plant) 12；
（4）Using the heating plate 15 that chain 12 and the lower section of die unit block 3 are set to the fibre bundle in processing screw thread cavity 14 and
The complex of resin is heating and curing, and the complex of the fibre bundle after the demoulding and resin is made to process screw thread cavity in processing unit (plant)
Self-assembling formation continuous screw thread in surface under the action of 14；The hardening time being heating and curing is 3.5 minutes, and solidification temperature is 150 DEG C.
（5）According to the fibre bundle and the complex of resin after the cutting demoulding of required length, screw rod product is made.
Using polyurethane, when practical application, can also select epoxy, epoxy for flame-retardant resin in present implementation
Vinyl and unsaturated polyester (UP), mating fiber is glass fibre with selected flame-retardant resin, and when practical application can also be
Aramid fiber.
Practical application example
Manufacture diameter M20, the epoxy glass fiber screw rod of 5 meters of joint length, every meter of weight of product be 500g, the weight of glass fibre
It measures as 425g, accounts for the 85% of total weight, weight resin 75g accounts for the 15% of gross mass, and specific implementation step is as follows：
（1）Processing unit (plant) prepares：Die unit block is made using H13 hot-working die hards Steel material；Each die unit block
Length be 100mm, be 40 times of thread pitch 2.5mm, be 2 times of chain pitch 50mm；Single chain 40 saves totally, length
2000mm, it is unilateral to match somebody with somebody 20 die unit blocks, 40 pieces of both sides；The appearance and size of each die unit block is identical, is connected with chain
Position it is identical with hole, the processing and fabricating screw thread cavity on the lateral surface of die unit block, polishing, polishing, in die unit block
Upper locating and machining pin and locating slot, it is stringent to control the geometrical and toleranging of critical size and match somebody with somebody with adjacent molds cell block
The finish in conjunction face；The die unit block processed is mounted on to the chain of two equidirectional movements of two processing groups one by one
On, heating plate is set in the chain of each processing group and the lower section of die unit block, is set on the inside of the chain of each processing group
For the hydraulic compressing device to pressurize to the die unit block on chain and chain, the hydraulic compression in two processing groups fills
The compression aspect put is oppositely arranged, and checks that the screw thread cavity on two corresponding die unit blocks being located between two processing groups is spelled
Close form processing screw thread cavity after identical situation and chain operation situation, start heating plate after it is spare；
（2）Add in the flame-retardant resin that configure in injecting glue slot, in the flame-retardant resin configured by be formulated added in resin,
Fire retardant and curing agent and with the matched inner pattern releasing agent applicable of resin type；And be thoroughly mixed it is uniformly for use, select alkali-free,
Non-twist 2400Tex88-92 strands of glass fibre immerses injecting glue slot, then forms circular cut by piece pre-forming die by threading board
The whole strand fibre bundle in face and the complex of resin；Wherein, releasing agent is preferably DX-101；
（3）Make processing screw-type of the complex of fibre bundle and resin by processing unit (plant) under the traction of caterpillar tractor
Chamber, hauling speed are matched by translational speed of the automatic control system automatically with chain in processing unit (plant), speed 0.2m/min；
（4）Using the heating plate set below chain and die unit block to the processing fibre bundle of screw-type intracavitary and answering for resin
Zoarium is heating and curing, and makes the complex of the fibre bundle after the demoulding and resin under the action of processing unit (plant) processes screw thread cavity
The continuous screw thread of surface self-assembling formation；The hardening time being heating and curing is 3.5 minutes, and solidification temperature is 150 DEG C.
（5）According to the fibre bundle and the complex of resin after the cutting demoulding of required length, screw rod product is made.
The pultrusion of same with thermosetting compound material and screw forming are combined into one by processing unit (plant) of the present invention and processing method,
Screw thread is directly formed on its surface while extruder pulls up and squeezes out the body of rod, theoretically there is no limit have spiro rod length
The advantages of production efficiency is high, environmental protection, is cut off simultaneously because avoiding reinforcing fiber in composite material when secondary mechanical is processed
Influence to screw thread bearing capacity, fastener mechanical property obtain significantly improving comprehensively；With the difference of existing common pultrude process
It is：Common pultrude process can only produce length direction section using pultrusion die fixed, that disengaging mouth-shaped is consistent
The uniform section bar of shape, the mold in processing unit (plant) of the present invention is using opposite opened mould, and mold is by multiple die unit blocks
Composition, die unit block is mounted on the chain rotated, thus can form irregular thread shape in product surface；At present
This mold and the processing method using this mold processing screw rod are not found, using processing unit (plant) of the present invention and processing side
Method processing gained screw rod product has outstanding advantages of corrosion-resistant, insulation, heat-insulated, without magnetization, high intensity, fire-retardant characteristic, full
Demand under sufficient certain environmental conditions, suitable for fields such as electric power, metallurgy, ocean engineering, chemical industry, energy-saving residence, traffic, communications
Particular/special requirement.
The above is only the preferred embodiment of patent of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of patent principle of the present invention is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection domain of patent of the present invention.
Claims (10)
1. a kind of processing unit (plant) of full thread overlength screw rod, it is characterised in that：Including rack, driving motor speed reducer and work sheet
Member, the driving motor speed reducer are fixed at bottom of the frame, and the processing unit is arranged on the top of rack, the processing
Unit includes two processing groups of symmetrically arranged side by side, and each processing group includes drive gear, bearing housing and two drive chains
It takes turns, two drive gears intermeshing in two processing groups is sequentially connected, and one of drive gear slows down with driving motor
The output shaft of machine is fixedly and coaxially connected, and the drive gear in each processing group and one of drive sprocket of the processing group are coaxial
Connection, the bearing housing are fixed in rack, the drive gear in each processing group and one of drive of the processing group
Axis between movable sprocket is passed through in the bearing housing and is rotatablely connected with bearing housing, two drive chains in each processing group
Chain is connected between wheel, the chain is by two drive sprocket driving movements, along chain length direction on the chain
Several die unit blocks are provided with, screw thread cavity, the mould of two processing groups are formed on the lateral surface of each die unit block
Have cell block and correspond setting, the screw thread cavity split structure on two corresponding die unit blocks between two processing groups
Into processing screw thread cavity.
2. the processing unit (plant) of a kind of full thread overlength screw rod according to claim 1, which is characterized in that in each processing group
Chain on the inside of set for the hydraulic compressing device that pressurizes to the die unit block on chain and chain, two processing groups
In the compression aspect of hydraulic compressing device be oppositely arranged.
3. the processing unit (plant) of a kind of full thread overlength screw rod according to claim 1, which is characterized in that in each processing group
Chain and die unit block lower section set heating plate.
4. the processing unit (plant) of a kind of full thread overlength screw rod according to claim 1, which is characterized in that in each processing group
Chain and die unit block top set insulation cover.
5. the processing unit (plant) of a kind of full thread overlength screw rod according to claim 1, which is characterized in that in two processing groups
The split of die unit block form and be provided with bottom guide below processing screw thread cavity, spelled in the die unit block of two processing groups
It closes to form and is provided with upper guide plate above processing screw thread cavity.
6. the processing unit (plant) of a kind of full thread overlength screw rod according to claim 1, which is characterized in that in two processing groups
Die unit block opposite face on be respectively formed with the positioning pin and locating slot of mutual cooperation, in the mold list of two processing groups
When first block split forms processing screw thread cavity, the positioning pin on the die unit block of one of processing group is inserted into another processing
In locating slot on the die unit block of group.
A kind of 7. processing unit (plant) of full thread overlength screw rod according to claim 1, which is characterized in that the mold list
First block is H13 or 8407 hot-working die hard Steel materials.
A kind of 8. processing unit (plant) of full thread overlength screw rod according to claim 1, which is characterized in that the mold list
The length of first block is the integral multiple of processed thread pitch, chain pitch.
9. based on a kind of processing method of full thread overlength screw rod processing unit (plant) described in claim 1, which is characterized in that including
Following steps：
（1）Processing unit (plant) prepares：Die unit block, die unit are made using H13 or 8407 hot-working die hard Steel materials
The length of block is the integral multiple of processed thread pitch, chain pitch, and the appearance and size of each die unit block is identical, with chain
The position of connection is identical with hole, the processing and fabricating screw thread cavity on the lateral surface of die unit block, polishing, polishing, in mold list
Locating and machining pin and locating slot on first block, two that the die unit block processed is mounted on to two processing groups one by one are equidirectional
On the chain of movement, heating plate is set in the chain of each processing group and the lower section of die unit block, in the chain of each processing group
The hydraulic compressing device to pressurize to the die unit block on chain and chain is set on the inside of item, in two processing groups
The compression aspect of hydraulic compressing device is oppositely arranged, and is checked on two corresponding die unit blocks being located between two processing groups
The split of screw thread cavity form processing screw thread cavity after identical situation and chain operation situation, start heating plate after it is spare；
（2）Select flame-retardant resin and be raw material with the fiber of selected resin complete, added in injecting glue slot configured it is fire-retardant
Type resin, and it is thoroughly mixed uniformly for use, multiply reinforcing fiber is passed through into threading board by the requirement calculated, immerses note
Then glue groove forms the whole strand fibre bundle of circular cross-section and the complex of resin by piece pre-forming die；
（3）The complex of fibre bundle and resin is made to pass through step under the traction of caterpillar tractor（1）Middle processing unit (plant) adds
Work screw thread cavity, hauling speed are matched by translational speed of the automatic control system automatically with chain in processing unit (plant)；
（4）Using the heating plate set below chain and die unit block to the processing fibre bundle of screw-type intracavitary and answering for resin
Zoarium is heating and curing, and makes the complex of the fibre bundle after the demoulding and resin under the action of processing unit (plant) processes screw thread cavity
The continuous screw thread of surface self-assembling formation；
（5）According to the fibre bundle and the complex of resin after the cutting demoulding of required length, screw rod product is made.
A kind of 10. processing method of full thread overlength screw rod according to claim 9, which is characterized in that step（4）It is described
The hardening time being heating and curing be 3.5 minutes, solidification temperature is 150 DEG C.
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| CN201711082030.1A CN108081641B (en) | 2017-11-07 | 2017-11-07 | A kind of processing unit (plant) and processing method of full thread overlength screw rod |
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| CN115401847A (en) * | 2022-09-02 | 2022-11-29 | 江苏贝尔机械有限公司 | Foaming forming equipment for heat-insulating layer of flexible heat-insulating pipeline |
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Also Published As
| Publication number | Publication date |
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| CN108081641B (en) | 2019-02-01 |
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