CN201296034Y - Rubber screw extruder head - Google Patents
Rubber screw extruder head Download PDFInfo
- Publication number
- CN201296034Y CN201296034Y CNU2008200267845U CN200820026784U CN201296034Y CN 201296034 Y CN201296034 Y CN 201296034Y CN U2008200267845 U CNU2008200267845 U CN U2008200267845U CN 200820026784 U CN200820026784 U CN 200820026784U CN 201296034 Y CN201296034 Y CN 201296034Y
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- Prior art keywords
- extruding
- notch
- screw extruder
- extruder head
- counterdie
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a rubber screw extruder head. By improving an extruding groove-shaped cavity of the head, the resistance force of the rubber material at different positions during the flow is changed, so that the consistence of the flow rate of the rubber material to a rubber discharging slotted opening is realized, and the rubber material is ensured to be uniformly extruded, and the utilization rate of the material is improved. The rubber screw extruder head is mainly provided with an upper and a lower dies which are locked with each other and are controlled by a hydraulic device to be opened or closed. The upper die and the lower die are respectively hinged with a square flange, and a pair of extruding grooves with symmetric structure which are used for the flow-out of the liquid rubber material are respectively arranged inside the upper and the lower dies. The end part, which is connected with the square flange, of the extruding groove is provided with a semi-circular notch, and the other end part of the extruding groove is a flat extruding notch. The bottom part of the extruding grooves is provided with a conical limit lug boss with a symmetric structure, and the limit lug boss is provided with an arc head part which corresponds to the semi-circular notch and a tail part which corresponds to the extruding notch. In the direction from the head part to the tail part, the height of the limit lug boss is gradually reduced.
Description
Technical field
The utility model relates to a kind of handpiece structure that is applied to the rubber screw extruder to be improved, and belongs to the rubber manufacturing machinery field.
Background technology
In the rubber tyre manufacture process, the liquid sizing material that generally adopts screw extruder that proportioning is finished is extruded, is pressed into and satisfies the film that process requires, to realize manufacturing processes such as follow-up film cuts, applying.
The head of existing rubber screw extruder, the curve line style and the angle of its shape cavity wall are unreasonable.When liquid sizing material when portion flows within it, the resistance that is subjected to inwall on every side is roughly the same.Because liquid sizing material is heated to high temperature in die cavity inside, and sizing material forms certain force of strain on its surface in flow process, cause the amount of contraction on sizing material surface to differ bigger, the flow velocity that finally is reflected in sizing material arrival binder removal notch differs bigger, the head of sizing material generally presents conical in shape, cause the part sizing material unavailable, formed the waste on the material.
The utility model content
The utility model provides a kind of rubber screw extruder head, for addressing the above problem and the not enough improvement of taking to extrude at head channel shaped cavities.
Its purpose of design is, the resistance that is subjected to when flowing by the sizing material that changes diverse location realizes that sizing material arrives the uniformity of binder removal notch flow velocity, and the utilization rate of material is extruded, improved to the assurance sizing material equably.
For realizing above-mentioned purpose of design, described rubber screw extruder head mainly has:
A pair of fasten up and down, the upper die and lower die of controlling its closure or openness state by same hydraulic means.
Upper die and lower die are articulated in square flange respectively backward, are respectively equipped with extruding groove a pair of symmetrical configuration, that be used for liquid sizing material outflow in upper die and lower die inside.
The difference with the prior art part is that the end of extruding groove connection side flange is a semicircular notch, and the other end of extruding groove is the flat notch of extruding.
Be provided with approximate current limliting boss taper, symmetrical configuration in the bottom of extruding groove, the current limliting boss has head relative with semicircular notch, the circular arc profile, and with extrude the afterbody that notch is oppositely arranged.
Direction along head to afterbody, the height of current limliting boss reduces gradually.
As above-mentioned basic scheme feature, liquid sizing material after semicircular notch enters extruding groove, be subjected to the extruding groove inwall extruding and little by little to both sides shuntings, and final from extruding notch outflow in the form of sheets.
In the prior art between the utility model, the flow velocity of liquid sizing material mid portion is bigger, and the mid portion sizing material arrives quickly than both sides sizing material and extrudes notch.
In the sizing material extrusion behind application the utility model, owing to be subjected to the inhibition of current limliting boss, the resistance that the sizing material of mid portion is subjected to is bigger, and its flow velocity is minimized.The resistance that the sizing material of two side portions is subjected to is less, and is not obvious to the influence of its flow velocity.Therefore under the condition that reduces the whole flow velocity of sizing material, the sizing material flow velocity of diverse location reaches unanimity, and sizing material can be extruded equably.
The flow velocity uniformity of sizing material each several part when being extruded for further improving, described current limliting boss constitutes monolithic construction by integrated injection molding with upper die and lower die.
For overcoming the tension difference that liquid sizing material forms on the surface effectively, the further improvement project that can take is,
Along semicircular notch to the direction of extruding notch, extruding groove have to both sides enlarge gradually, the curved wall of symmetrical configuration.
For the compactness that guarantees to fasten between the upper die and lower die, prevent the excessive of sizing material, on the contact-making surface that upper die and lower die fasten mutually, be respectively equipped with at least 2 grooves.
More the scheme of You Huaing is, 2 grooves are triangle and are arranged on the both sides of extruding groove symmetrically.
As above content, the utility model rubber screw extruder head has following advantage and beneficial effect:
1, extrude the channel shaped cavities moulding and increase the current limliting boss by improving head, can change the resistance that the sizing material different piece is subjected to, thereby the flow velocity unanimity when realizing that sizing material arrives the binder removal notch guarantees that sizing material can be extruded equably.
2, the sizing material utilization rate is improved, and reduces manufacturing cost effectively.
3, the upper die and lower die of whole head can closely fasten, and the sizing material of high temperature, high pressure can not overflow from sidepiece.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described further,
Fig. 1 is the structural representation of described rubber screw extruder head;
Fig. 2 is the structure chart of described counterdie;
As shown in Figure 1 to Figure 3, patrix 1, counterdie 2, square flange 3, extruding groove 4, notch 41 is extruded notch 42, curved wall 43, current limliting boss 5, head 51, afterbody 52, groove 6, die body hangers 7, oil cylinder hangers 8.
The specific embodiment
Embodiment 1, and as shown in Figure 1 to Figure 3, the described rubber screw extruder of present embodiment head mainly has a pair of patrix 1 and the counterdie 2 that fastens up and down.
Patrix 1, counterdie 2 are articulated in square flange 3 by the die body hangers 7 at rear portion respectively.
The oil cylinder hangers 8 of patrix 1, counterdie 2 is respectively applied for and connects same hydraulic means, and by this hydraulic means control patrix 1 with counterdie 2 is unlocked simultaneously or closed.
Be respectively equipped with extruding groove 4 a pair of symmetrical configuration, that be used for liquid sizing material outflow at patrix 1 and counterdie 2 inside.
The end of extruding groove 4 connection side's flanges 3 is semicircular notches 41, and its other end is the flat notch 42 of extruding.Along notch 41 to the direction of extruding notch 42, extruding groove 4 have to both sides enlarge gradually, the curved wall 43 of symmetrical configuration.
Be provided with an approximate current limliting boss 5 taper, symmetrical configuration in the bottom of extruding groove 4, current limliting boss 5 has and notch 41 heads 51 relative, the circular arc profile, and with extrude the afterbody 52 that notch 42 is oppositely arranged.
52 the direction along head 51 to afterbody, the height of current limliting boss 5 reduces gradually.
Current limliting boss 5 constitutes monolithic construction by integrated injection molding with patrix 1, counterdie 2.
Liquid sizing material after semicircular notch 41 enters extruding groove 4, be subjected to its inwall extruding and little by little to both sides shunting and final from extruding notch 42 outflow in the form of sheets.
In the sizing material extrusion, owing to be subjected to the inhibition of current limliting boss 5, the resistance that the sizing material of mid portion is subjected to is bigger, and its flow velocity is minimized.Under the condition that reduces the whole flow velocity of sizing material, the sizing material flow velocity of diverse location reaches unanimity, and sizing material can be extruded equably.
The reduction of certain above-mentioned sizing material flow velocity is in the scope that working condition allows, and can't have influence on normally carrying out of expressing technique integral body.
On the contact-making surfaces that patrix 1 and counterdie 2 fastens mutually, be respectively equipped with 2 leg-of-mutton and be arranged on the groove 6 of extruding groove 4 both sides symmetrically.
By above-mentioned symmetrically arranged groove 6, the fastening contact area between patrix 1 and the counterdie 2 is reduced.Under the constant prerequisite of patrix 1 and counterdie 2 weight, the pressure of contact-making surface is improved between the two, therefore is easier to increase the sealing property at internal sizes, can prevent effectively sizing material from both sides excessive come out.
As mentioned above, present embodiment only is described with regard to preferred embodiment of the present utility model in conjunction with the accompanying drawings.Can take a hint in view of the above for one of ordinary skill in the art, and direct derivation goes out to meet other alternative structure of the utility model design concept, other architectural features that obtain thus also should belong to scheme scope described in the utility model.
Claims (5)
1, a kind of rubber screw extruder head, have a pair of fasten up and down, patrix (1) and the counterdie (2) of controlling its closure or openness state by same hydraulic means, patrix (1), counterdie (2) are articulated in square flange (3) respectively backward, be respectively equipped with extruding groove (4) a pair of symmetrical configuration, that be used for liquid sizing material outflow at patrix (1) and counterdie (2) inside, it is characterized in that: described extruding groove (4), the end of its connection side's flange (3) is a semicircular notch (41), and its other end is the flat notch (42) of extruding;
Be provided with approximate current limliting boss taper, symmetrical configuration (5) in the bottom of extruding groove (4), current limliting boss (5) has head (51) relative with notch (41), the circular arc profile, and with extrude the afterbody (52) that notch (42) is oppositely arranged;
Direction along head (51) to afterbody (52), the height of current limliting boss (5) reduces gradually.
2, rubber screw extruder head according to claim 1 is characterized in that: described current limliting boss (5) constitutes monolithic construction by integrated injection molding with patrix (1), counterdie (2).
3, rubber screw extruder head according to claim 1 and 2 is characterized in that: along notch (41) to the direction of extruding notch (42), extruding groove (4) have to both sides enlarge gradually, the curved wall (43) of symmetrical configuration.
4, rubber screw extruder head according to claim 3 is characterized in that: on patrix (1) and the mutual contact-making surface that fastens of counterdie (2), be respectively equipped with at least 2 grooves (6).
5, rubber screw extruder head according to claim 4 is characterized in that: 2 grooves (6) are triangle and are arranged on the both sides of extruding groove (4) symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200267845U CN201296034Y (en) | 2008-08-12 | 2008-08-12 | Rubber screw extruder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200267845U CN201296034Y (en) | 2008-08-12 | 2008-08-12 | Rubber screw extruder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201296034Y true CN201296034Y (en) | 2009-08-26 |
Family
ID=41041996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200267845U Expired - Fee Related CN201296034Y (en) | 2008-08-12 | 2008-08-12 | Rubber screw extruder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201296034Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514214A (en) * | 2011-12-02 | 2012-06-27 | 浙江格尔泰斯环保特材科技有限公司 | PTFE (Polytetrafluoroethylene) unsintered tape forming device |
| CN103582553A (en) * | 2011-03-08 | 2014-02-12 | 东洋橡胶工业株式会社 | Device and method for forming sheet-like rubber |
| CN104029369A (en) * | 2014-06-17 | 2014-09-10 | 桂林橡胶机械厂 | Machine head of rubber supply extruder of three-roller calender |
-
2008
- 2008-08-12 CN CNU2008200267845U patent/CN201296034Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582553A (en) * | 2011-03-08 | 2014-02-12 | 东洋橡胶工业株式会社 | Device and method for forming sheet-like rubber |
| CN103582553B (en) * | 2011-03-08 | 2015-12-23 | 东洋橡胶工业株式会社 | Sheet rubber shaped device and method |
| CN102514214A (en) * | 2011-12-02 | 2012-06-27 | 浙江格尔泰斯环保特材科技有限公司 | PTFE (Polytetrafluoroethylene) unsintered tape forming device |
| CN102514214B (en) * | 2011-12-02 | 2014-05-14 | 浙江格尔泰斯环保特材科技有限公司 | PTFE (Polytetrafluoroethylene) unsintered tape forming device |
| CN104029369A (en) * | 2014-06-17 | 2014-09-10 | 桂林橡胶机械厂 | Machine head of rubber supply extruder of three-roller calender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MESNAC CO., LTD. Free format text: FORMER NAME: QINGDAO COLLEGES AND UNIVERSITIES SOFT CONTROL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 266045 No. 1, Zhengzhou Road, Sifang District, Shandong, Qingdao Patentee after: Mesnac Co., Ltd. Address before: 266045 No. 1, Zhengzhou Road, Sifang District, Shandong, Qingdao Patentee before: Qingdao Colleges and Universities Soft Control Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20170812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |