CN207224538U - A kind of high precision silicon rubber extruding system - Google Patents
A kind of high precision silicon rubber extruding system Download PDFInfo
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- CN207224538U CN207224538U CN201720983572.5U CN201720983572U CN207224538U CN 207224538 U CN207224538 U CN 207224538U CN 201720983572 U CN201720983572 U CN 201720983572U CN 207224538 U CN207224538 U CN 207224538U
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- gear pump
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- mouth mold
- adjusting seat
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Abstract
A kind of high precision silicon rubber extruding system, rigid attachment gear pump on the discharge port of its feed system, rigid attachment has extruder head assembly on the discharge port of gear pump, extruder head assembly includes the adjusting seat with gear pump rigid attachment, shunting body is equipped with the stepped ramp type endoporus of adjusting seat, the outer end face center of shunting body is provided with core；Rigid connection has mouth mold mounting base on the outer end face of adjusting seat, and mouth mold mounting base center has cone-shaped inner hole, there is annular shoulder on inner face, have on outer end face with externally threaded annular convex platform, annular shoulder is inlaid in adjusting seat endoporus and tight against on the outer end face of shunting body；Core is located in the cone-shaped inner hole of mouth mold mounting base, mouth mold is embedded with annular convex platform, and fix by the nut on annular convex platform external screw thread.The utility model uses gear pump feed-type, solves unstable, the inconsistent situation of extruded product size.
Description
Technical field
It the utility model is related to silicon rubber extrusion molding field, and in particular to a kind of high precision silicon rubber extruding system.
Background technology
Current Teh Extrusion Press for Extruding Silicone Rubber Products, sizing material enter machine barrel by synchronous drawing-in device, by the extruding of screw rod in machine barrel,
The product that extruder head forms required shape is transported to after shearing.Since silicon rubber has, viscosity is larger, and heat sensitivity waits by force spy
Point, easily there arises a problem that：1st, due to the prior art can not ensure sizing material uniformly, be constantly fed in head, and then influence squeeze
Go out dimensional stability, the uniformity of product.2nd, influenced by screw rod, machine barrel machining accuracy, and screw driven system operation is flat
The influence of stability, can not ensure extrusion the glue amount moment be consistent, also so influence extruded product dimensional accuracy.For with
Also someone is by improving drawing-in device, and the shape of screw rod, draw ratio etc. for upper problem, but due to the shadow by machining accuracy etc.
Ring, still can not effectively solve the problems such as extruded product size is unstable.
Utility model content
The purpose of this utility model is a kind of high precision silicon rubber extruding system of design, using gear pump feed-type, drop
The machining accuracy of low feed system related components, and then the production cost of equipment is reduced, extruded product is improved on this basis
Quality, solve unstable, the inconsistent situation of extruded product size.
The technical solution of the utility model：A kind of high precision silicon rubber extruding system, including feed system, its feature
It is：Rigid attachment gear pump on the discharge port of the feed system 1, and make the discharging of the feed inlet and feed system of gear pump
Mouth is corresponding, and contacts seal form sealing firmly using end face；Rigid attachment has extruder head assembly on the discharge port of the gear pump,
The extruder head assembly includes contacting the adjusting seat of sealed attachment firmly with gear pump rigidity, in the stepped ramp type endoporus of the adjusting seat
Shunting body is equipped with, the outer end face center of the shunting body is provided with core, positioning table is provided with the core, to ensure it
Installation site precision on shunting body；Rigid connection has mouth mold mounting base on the outer end face of the adjusting seat, and mouth mold is installed
Seat center has cone-shaped inner hole, has annular shoulder on inner face, has on outer end face with externally threaded annular convex platform, the ring
Shape shoulder is inlaid in adjusting seat endoporus and tight against on the outer end face of shunting body, by shunting body axial restraint, and all sealings
Face contacts seal form sealing firmly using end face；The core is located in the cone-shaped inner hole of mouth mold mounting base, the convex annular
Mouth mold is embedded with platform, and is fixed by the nut on annular convex platform external screw thread, the cone-shaped end of the core stretches into
In the die cavity of mouth mold the inner.
Cooling duct is formed with the pump case of the gear pump, the cooling duct is led to by two levels positioned at pump housing bottom
Road, two Vertical Channels positioned at pump housing left end, the interface channel positioned at pump housing left upper part and positioned at the vertical of pump housing right end
Intake tunnel and vertical exhalant canal are formed；The bottom of the vertical intake tunnel and vertical exhalant canal respectively with two levels
The right end connection of passage, the bottom of the left ends of two horizontal channels respectively with two Vertical Channels connect, two Vertical Channels
Upper end is connected by interface channel.
The drive system that the gear pump is made up of shaft coupling, gear pump retarder and gear pump driven motor drives.
The feed system by installed in connecting flange, feeding cylinder, feeding cylinder screw rod propulsion device charging gear reducer and
Charging driving motor composition.
By feeding cylinder, the feed inlet being arranged on above feeding cylinder and the plunger in feeding cylinder push away the feed system
Formed into device, the plunger propulsion device is driven by hydraulic system or pneumatic system.
The utility model has the advantage that and effect：
1st, the utility model gear pump feed-type can also use plunger propulsion side in addition to using screw rod propulsion mode
Formula, its type of drive can use hydraulic pressure, pneumatically or electrically machine+leading screw driving.
2nd, the utility model accurately ensures that the glue amount moment of extrusion is consistent using gear pump, and by gear pump case
Body, which is equipped with cooling duct, reduces the heat sensitivity of silica gel in production process, can ensure the dimensional stability and one of extruded product
Cause property, improves extruded product qualification rate, and reduces the machining accuracy of feed system related components, and then reduces equipment
Production cost.
3rd, the utility model redesigns extruder head, letter to improve the quality of Miniature precision silicone tube
Change the structure of original head, facilitated the adjustment of extruded product uniform wall thickness, while also allow for the cleaning maintenance of follow-up head.
Brief description of the drawings
Fig. 1 is the structure diagram of the first embodiment of the utility model,
Fig. 2 is the structure sectional view of the first embodiment of the utility model,
Fig. 3 is the structure diagram of second of embodiment feed system of the utility model,
Fig. 4 is the structure diagram of the extruder head of the utility model,
Fig. 5 is the structure diagram of the gear pump cooling duct of the utility model.
Embodiment
The first embodiment of the utility model is described with reference to attached drawing 1,2,4,5.
A kind of high precision silicon rubber extruding system, including feed system 1, rigidly join on the discharge port of the feed system 1
Gear pump 3 is connect, and makes the feed inlet of gear pump 3 corresponding with the discharge port of feed system 1, and sealing shape is contacted using end face firmly
Formula seals；Rigid attachment has extruder head assembly 2 on the discharge port of the gear pump 3, and the extruder head assembly 2 includes and gear pump
3 rigidity are hard to contact the adjusting seat 4 sealingly connected, and shunting body 5, the shunting are equipped with the stepped ramp type endoporus of the adjusting seat 4
The outer end face center of body 5 is provided with core 7, and positioning table is provided with the core 7, to ensure its installation on shunting body 5
Positional precision；Rigid connection has mouth mold mounting base 6 on the outer end face of the adjusting seat 4, and the center of mouth mold mounting base 6 has taper
Endoporus 10, has annular shoulder 11 on inner face, has on outer end face with externally threaded annular convex platform 12, the annular shoulder 11
It is inlaid in 4 endoporus of adjusting seat and tight against on the outer end face of shunting body 5, by 5 axial restraint of shunting body, and all sealing surfaces
Seal form sealing is contacted using end face firmly；The core 7 is located in the cone-shaped inner hole 10 of mouth mold mounting base 6, the annular
Mouth mold 8 is embedded with boss 12, and is fixed by the nut 9 on 12 external screw thread of annular convex platform, the taper of the core 7
Termination is stretched into the inner die cavity of mouth mold 8.
Cooling duct is formed with the pump case of the gear pump 3, the cooling duct is by two levels positioned at pump housing bottom
Passage 13, two Vertical Channels 14 positioned at pump housing left end, the interface channel 15 positioned at pump housing left upper part and right positioned at the pump housing
The vertical intake tunnel 16 and vertical exhalant canal 17 at end are formed；The bottom of the vertical intake tunnel 16 and vertical exhalant canal 17
Right end respectively with two horizontal channels 13 is held to connect, the left ends of two horizontal channels 13 bottom with two Vertical Channels 14 respectively
End connection, the upper end of two Vertical Channels 14 is connected by interface channel 15.The gear pump 3 passes through shaft coupling 18, gear pump
The drive system driving that retarder 19 and gear pump driven motor 20 form.The feed system 1 is by connecting flange 21, feeding cylinder
22nd, screw rod propulsion device 25, charging gear reducer 23 and the charging driving motor 24 installed in feeding cylinder 22 form.
The present embodiment screw rod propulsion device 25 is directly driven in feeding cylinder 22 by charging driving motor 24 (variable-frequency motor)
Rotated.Gear pump 3 is rigidly connected with feeding cylinder 22 using bolt, its seal form contacts sealing firmly using end face.In reality
During the use of border, sizing material filtration apparatus can be increased between gear pump 3 and feeding cylinder 22 as needed.Gear pump 3 mainly by
The pump housing and a pair of engaged gears are formed, it is driven by gear pump driven motor 20 (servomotor) by gear pump retarder 19 joins
Axis device 18 is driven, and accurately controls the rotating speed of gear pump, ensures that the glue amount substantially constant of extrusion is constant.
Second of embodiment of the utility model is described with reference to attached drawing 1,3,4,5.
Basic structure is identical with the first embodiment, and difference is that the feed system 1 by feeding cylinder 22, is arranged on
The feed inlet 27 of the top of feeding cylinder 22 and the plunger propulsion device 26 in feeding cylinder 22 form, the plunger propulsion device
26 are driven by hydraulic system or pneumatic system.
Adjusting seat 4 is bolted in 3 front end of the utility model gear pump, its sealing means is also used and connect firmly using end face
Touch seal form sealing.Shunting body 5 is equipped with 4 endoporus of adjusting seat, extrusion system can be carried out by adjusting four bolts on seat 4
The adjustment of product uniform wall thickness.If which side wall thickness is relatively thin, just which side corresponding bolt is tightened, if which side wall thickness compared with
Thickness, just unscrews which side corresponding bolt, ensures core 7 and mouth mold 8 completely with one heart, and then ensures that product wall thickness is uniform.
Shunting body 5 uses triple channel form, can further be plasticized sizing material in extrusion, while is also the installation pedestal of core 7, core
Positioning table is provided with mould 7, it is ensured that the installation site precision on shunting body 5.Mouth mold mounting base 6 is also adopted with adjusting seat 4
With rigid connection, mouth mold mounting base 6 also plays axial restraint shunting body 5 at the same time.Mouth mold 8 is installed on mouth mold mounting base 6
On, and be fixed by nut 9.
Operation principle：
The silica gel being kneaded is inserted into feeding cylinder 22 by feed inlet, is then promoted by screw rod propulsion device 25 or plunger
Sizing material is transported to the feed inlet of gear pump 3 by device 26, then again uniformly, is continuously conveyed sizing material by gear pump 3
Into the endoporus of adjusting seat 4, then by the shunting of shunting body 5, finally extruded from the cavity that mouth mold 8 is formed with core 7,
And form final product.
By taking the requirement of existing finished product outer diameter φ 2mm, wall thickness 0.25mm as an example, produced using traditional equipment, size
Precision preferably reaches φ 2mm ± 0.1mm, can be by ruler by the high precision silicon rubber extruding system designed by the utility model
Control to very little stable accuracy stabilization, the uniformity in φ 2mm ± 0.02mm, improving product well.
The preferred embodiment of above-described embodiment, simply the utility model, is not used for limiting the utility model practical range,
Therefore all equivalent variations done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
Claims (5)
1. a kind of high precision silicon rubber extruding system, including feed system (1), it is characterised in that：Feed system (1) goes out
Rigid attachment gear pump (3) in material mouth, and make the feed inlet of gear pump (3) corresponding with the discharge port of feed system (1), and use
End face contacts seal form sealing firmly；Rigid attachment has extruder head assembly (2) on the discharge port of the gear pump (3), described to squeeze
Assembly (2) of lifting one's head includes and the hard adjusting seat (4) for contacting sealed attachment of gear pump (3) rigidity, the stepped ramp type of the adjusting seat (4)
Shunting body (5) is equipped with endoporus, the outer end face center of the shunting body (5) is provided with core (7), is set on the core (7)
Positioning table is equipped with, to ensure its installation site precision on shunting body (5)；Rigidly connect on the outer end face of the adjusting seat (4)
Mouth mold mounting base (6) is connected to, and mouth mold mounting base (6) center has cone-shaped inner hole (10), has annular shoulder on inner face
(11), have on outer end face and be inlaid in externally threaded annular convex platform (12), the annular shoulder (11) in adjusting seat (4) endoporus
And tight against on the outer end face of shunting body (5), by shunting body (5) axial restraint, and all sealing surfaces are contacted firmly using end face
Seal form seals；The core (7) is located in the cone-shaped inner hole (10) of mouth mold mounting base (6), in the annular convex platform (12)
Embedded with mouth mold (8), and, the taper of the core (7) fixed by the nut (9) on annular convex platform (12) external screw thread
Termination is stretched into the die cavity of mouth mold (8) the inner.
A kind of 2. high precision silicon rubber extruding system according to claim 1, it is characterised in that：The gear pump (3)
Be formed with cooling duct in pump case, the cooling duct by two horizontal channels (13) positioned at pump housing bottom, positioned at pump housing left end
Two Vertical Channels (14), the interface channel (15) positioned at pump housing left upper part and the vertical intake tunnel positioned at pump housing right end
(16) formed with vertical exhalant canal (17)；The bottom of the vertical intake tunnel (16) and vertical exhalant canal (17) respectively with
The right end connection of two horizontal channels (13), the left ends of two horizontal channels (13) bottom with two Vertical Channels (14) respectively
Connection, the upper end of two Vertical Channels (14) are connected by interface channel (15).
A kind of 3. high precision silicon rubber extruding system according to claim 1 or 2, it is characterised in that：The gear pump (3)
The drive system being made up of shaft coupling (18), gear pump retarder (19) and gear pump driven motor (20) drives.
A kind of 4. high precision silicon rubber extruding system according to claim 3, it is characterised in that：The feed system (1)
By connecting flange (21), feeding cylinder (22), the screw rod propulsion device (25) of installation in feeding cylinder (22), charging gear reducer (23) and
Charging driving motor (24) composition.
A kind of 5. high precision silicon rubber extruding system according to claim 3, it is characterised in that：The feed system (1)
By feeding cylinder (22), the feed inlet (27) being arranged on above feeding cylinder (22) and the plunger in feeding cylinder (22) promote dress
(26) composition is put, the plunger propulsion device (26) is driven by hydraulic system or pneumatic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983572.5U CN207224538U (en) | 2017-08-08 | 2017-08-08 | A kind of high precision silicon rubber extruding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720983572.5U CN207224538U (en) | 2017-08-08 | 2017-08-08 | A kind of high precision silicon rubber extruding system |
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| Publication Number | Publication Date |
|---|---|
| CN207224538U true CN207224538U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720983572.5U Active CN207224538U (en) | 2017-08-08 | 2017-08-08 | A kind of high precision silicon rubber extruding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379474A (en) * | 2017-08-08 | 2017-11-24 | 乐普医学电子仪器股份有限公司 | A kind of high precision silicon rubber extruding system |
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2017
- 2017-08-08 CN CN201720983572.5U patent/CN207224538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379474A (en) * | 2017-08-08 | 2017-11-24 | 乐普医学电子仪器股份有限公司 | A kind of high precision silicon rubber extruding system |
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