CN211542161U - Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould - Google Patents

Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould Download PDF

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Publication number
CN211542161U
CN211542161U CN201922019518.0U CN201922019518U CN211542161U CN 211542161 U CN211542161 U CN 211542161U CN 201922019518 U CN201922019518 U CN 201922019518U CN 211542161 U CN211542161 U CN 211542161U
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China
Prior art keywords
groove
reverse
ejector
block
new energy
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CN201922019518.0U
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Chinese (zh)
Inventor
蒋杰
张宝
卢明官
黄建华
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Taizhou Huangyan Aojie Molding Co ltd
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Taizhou Huangyan Aojie Molding Co ltd
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Abstract

The utility model provides a reverse kicking block demoulding mechanism of new energy automobile exterior trimming part mould hot runner belongs to the injection mould field. The injection molding device comprises a movable template and an injection molding plate, and is characterized in that a molding surface is arranged on the movable template, a plurality of reverse ejector blocks capable of axially reciprocating along the movable template are movably connected onto the molding surface, a plurality of casting pipes extending towards the molding surface are connected onto the injection molding plate, the casting pipes correspond to the reverse ejector blocks one by one, the casting pipes are connected with the corresponding reverse ejector blocks, transition flow channels are arranged on the reverse ejector blocks, two ends of each transition flow channel are respectively communicated with the pipe orifices of the corresponding casting pipes and the molding surface, and a plurality of hot runners are arranged in the movable template in a penetrating manner. The plastic part ejection device has the advantage that when the plastic part is ejected, the plastic part and cold materials in the injection molding pipe are prevented from being pulled to damage the plastic part.

Description

Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould
Technical Field
The utility model belongs to the injection mould field especially relates to a reverse kicking block demoulding mechanism of new energy automobile exterior trimming part mould hot runner.
Background
In the existing injection mold, a pouring pipe is usually directly extended into a movable mold plate to be directly communicated with a forming surface, so that the distance between the pipe orifice of the pouring pipe and the forming surface is small, a part of cold materials are hidden in the pipe orifice of the pouring pipe after forming and cooling, the cold materials are also connected with a plastic part, and the cold materials can be pulled when the plastic part is ejected out, so that the pouring pipe and the plastic part are easily pulled, and the plastic part is easily damaged.
For example, chinese patent document discloses an injection mold [ patent application No.: CN201821663038.7], which comprises a front mold and a rear mold matched with each other, wherein the front mold comprises a front mold base and a front mold core arranged in the front mold base, the rear mold comprises a rear mold base and a rear mold core arranged in the rear mold base, the front mold core and the rear mold core form a mold cavity for the injection molding liquid to flow into, and the second part of the workpiece can be partially accommodated in the mold cavity, so that when the first part of the workpiece is injection molded, the first part of the workpiece and the second part of the workpiece are integrally molded to form the workpiece. The utility model discloses an injection mold, preceding mold core and back mold core form the die cavity that supplies the injection molding liquid to flow in, and the second part of work piece can partly holding in the die cavity to when making the first part of the injection molding liquid injection moulding work piece that enters the die cavity, the first part of work piece forms the work piece with the second part integrated into one piece of work piece. Thus, the process of assembling the first part of the workpiece and the second part of the workpiece is omitted, so that the production efficiency can be improved, and the production cost can be reduced. However, the pouring tube in the injection mold directly extends into the movable mold plate to be directly communicated with the molding surface, after molding and cooling, a part of cold material is hidden in the mouth of the pouring tube and is also connected with the plastic part, and the cold material can be pulled when the plastic part is ejected, so that the pouring tube and the plastic part are easily pulled, and the plastic part is easily damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, a reverse kicking block demoulding mechanism of new energy automobile exterior trimming part mould hot runner is provided.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the hot runner reverse ejector block demoulding mechanism comprises a movable template and an injection molding plate, wherein a forming surface is arranged on the movable template, a plurality of reverse ejector blocks capable of axially reciprocating along the movable template are movably connected onto the forming surface, a plurality of pouring pipes extending towards the forming surface are connected onto the injection molding plate, the pouring pipes correspond to the reverse ejector blocks in a one-to-one mode and are connected with the corresponding reverse ejector blocks, transition flow channels are arranged on the reverse ejector blocks, two ends of each transition flow channel are communicated with the corresponding pouring pipe orifice and the corresponding forming surface respectively, and a plurality of hot runners are arranged in the movable template in a penetrating mode.
In the hot runner reverse ejector block demolding mechanism for the new energy automobile exterior trimming part mold, the width of the connecting port of the transition flow channel and the pouring pipe is larger than that of the connecting port of the transition flow channel and the forming surface, and the end part of the transition flow channel, which is close to the pouring pipe, is provided with a section of arc surface.
In the hot runner reverse ejection block demolding mechanism for the new energy automobile exterior trimming part mold, the movable mold plate is internally provided with a plurality of anti-collision grooves corresponding to the reverse ejection blocks one by one, and the reverse ejection blocks are positioned in the corresponding anti-collision grooves and movably connected with the anti-collision grooves when the mold is closed.
In foretell new energy automobile exterior trim mould hot runner reverse kicking block demoulding mechanism, the inslot that prevents colliding with be connected with the spread groove that runs through the movable mould board, the pouring tube extend into in the spread groove that corresponds and with the transition runner that corresponds be connected, the groove side of preventing colliding with still have run through the movable mould board and with prevent colliding with the ejector pin groove that the groove is connected, the movable mould board in wear to be equipped with a plurality of ejector pins, wherein several ejector pins wear to establish into the ejector pin inslot and be connected with the reverse kicking block that corresponds.
In the hot runner reverse ejecting block demolding mechanism for the new energy automobile exterior trimming part mold, a plurality of criss-cross grooves are formed in the forming surface, each reverse ejecting block is attached to one groove when the mold is closed, and the transition flow channel on each reverse ejecting block is communicated with the groove.
In the hot runner reverse ejector block demolding mechanism for the new energy automobile exterior trimming part mold, the forming surface is further provided with a plurality of ejector block grooves, each ejector block groove is movably connected with an ejector block, a first empty groove is formed in the inner wall of one ejector block groove, the bottom, close to the injection molding plate, of each first empty groove is communicated with a first circular groove, a second empty groove which is opposite to and communicated with the first empty groove is formed in the ejector block which moves in the ejector block groove, and the bottom of the second empty groove is communicated with a second circular groove which is opposite to and communicated with the first circular groove.
In the hot runner reverse ejector block demolding mechanism for the new energy automobile exterior trimming part mold, a convex block is arranged in the second hollow groove, the convex block extends into the first hollow groove, and three thin side grooves are respectively formed in the inner wall of the convex block and the inner wall of the second hollow groove.
In the hot runner reverse ejector block demoulding mechanism of the new energy automobile exterior trimming part mould, a plurality of ejector rods penetrate through a plurality of connecting points formed by staggered grooves.
In the hot runner reverse ejector block demoulding mechanism of the new energy automobile exterior trimming part mould, one end part of the forming surface is movably connected with a plurality of inclined ejector blocks, and the moving directions of the inclined ejector blocks are the same when demoulding is carried out.
In the hot runner reverse ejector block demoulding mechanism of the new energy automobile exterior trimming part mould, the movable mould plate is further provided with a core-pulling driver, an output shaft of the core-pulling driver is obliquely arranged, and an inclined plane forming block close to a forming surface is connected to the output shaft.
Compared with the prior art, the utility model has the advantages of:
1. the utility model provides a reverse kicking block is equipped with the transition runner, the both ends of transition runner respectively with the pouring tube mouth of pipe and shaping face, the in-process of moulding plastics is transmitted the liquid of moulding plastics through the transition runner, at the in-process of cooling shaping and drawing of patterns, unnecessary cold burden can be piled up in the transition runner to along with reverse kicking block removes ejecting piece of moulding together, prevent to mould that the piece receives to drag.
2. The utility model discloses in be equipped with a plurality of vertically and horizontally staggered's recess, on the one hand mould plastics liquid and can flow into the recess and make the liquid of moulding plastics flow into each place of shaping face fast under the guide effect of recess, on the other hand, the liquid of moulding plastics can form a plurality of enhancement strips in the recess, can increase the intensity of moulding, and should strengthen the back that the strip is located the piece of moulding, can not influence pleasing to the eye.
Drawings
Fig. 1 is an overall schematic view of the present invention;
fig. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic view of the connection of a reverse top block to a pour tube;
FIG. 4 is a schematic structural view of a moving platen;
fig. 5 is a schematic view of the structure of one of the top blocks.
In the figure: the device comprises a movable mould plate 10, an injection moulding plate 11, a forming surface 12, a reverse top block 13, a pouring pipe 14, a transition flow channel 15, a knock-proof groove 16, a connecting groove 17, a top rod groove 18, a groove 19, a top rod 20, a top block groove 21, a top block 22, a first empty groove 23, a first round groove 24, a second empty groove 25, a second round groove 26, a convex block 27, a thin edge groove 28, an inclined top block 29 core-pulling driver 30, an inclined plane forming block 31 and a hot runner 32.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-2, the hot runner reverse ejector block demolding mechanism for the new energy automobile exterior trim part mold comprises a movable mold plate 10 and an injection molding plate 11, wherein a molding surface 12 is arranged on the movable mold plate 10, a plurality of reverse ejector blocks 13 capable of axially reciprocating along the movable mold plate 10 are movably connected to the molding surface 12, a plurality of pouring pipes 14 extending towards the molding surface 12 are connected to the injection molding plate 11, the pouring pipes 14 correspond to the reverse ejector blocks 13 one to one, the pouring pipes 14 are connected with the corresponding reverse ejector blocks 13, transition flow channels 15 are arranged on the reverse ejector blocks 13, two ends of each transition flow channel 15 are respectively communicated with the pipe openings of the corresponding pouring pipes 14 and the molding surface 12, and a plurality of hot runners 32 penetrate through the movable mold plate 10.
In this example, the injection liquid flows into the transition flow channel 15 in the reverse top block 13 through the pouring tube 14 and flows into the forming surface 12 through the transition flow channel 15 for forming the plastic part, during demolding, the reverse top block 13 pushes the plastic part upwards towards the direction away from the injection molding plate 11, and the reverse top block 13 is disconnected from the corresponding pouring tube 14, in the prior art, the pouring tube 14 often extends into the movable mold plate 10 to be directly communicated with the forming surface 12, the distance between the nozzle of the pouring tube 14 and the forming surface 12 is small, during demolding, the residual cold material in the pouring tube 14 is connected with the plastic part, during pushing the plastic part, the cold material is pulled, so that the pulling between the pouring tube 14 and the plastic part is easy to generate, the plastic part is easy to damage, therefore, through the connection of the reverse top block 13 and the transition flow channel 15 therein, the redundant cold material is accumulated in the transition flow channel 15, and moves the plastic part pushed out along with the reverse top block 13, prevent the plastic part from being pulled.
As shown in fig. 3, the width of the connection port of the transition flow channel 15 and the pouring tube 14 is greater than the width of the connection port of the transition flow channel 15 and the forming surface 12, and the end of the transition flow channel 15 close to the pouring tube 14 has a circular arc surface.
In this example, the port connecting the transition flow passage 15 and the forming surface 12 is small, the injection liquid can only slowly flow into the forming surface 12 through the transition flow passage 15, which prevents the injection liquid from flowing into the plastic part too fast to generate bubbles and cavities, in addition, the transition flow passage 15 gradually reduces the width of the notch of the transition flow passage 15 through the arc surface in the transition flow passage 15, during the injection process, the injection liquid can move forward along the arc surface, which prevents the injection liquid from being sprayed out due to the sudden reduction of the notch of the transition flow passage 15, and bubbles or cavities are easily generated.
As shown in fig. 4, a plurality of anti-collision grooves 16 corresponding to the reverse ejection blocks 13 one to one are arranged in the movable mold plate 10, and when the mold is closed, the reverse ejection blocks 13 are located in the corresponding anti-collision grooves 16 and movably connected with the same.
In this example, in the process of moving back after the reverse ejector block 13 ejects the plastic part, the reverse ejector block can only move to a position abutting against the bottom of the knock-prevention groove 16, and the situation that the reverse ejector block 13 moves for an excessively long distance to push or impact the pouring tube 14 to damage the pouring tube 14 cannot occur.
The anti-collision device is characterized in that a connecting groove 17 penetrating through the movable template 10 is connected in the anti-collision groove 16, the pouring tube 14 extends into the corresponding connecting groove 17 and is connected with the corresponding transition flow channel 15, an ejector rod groove 18 penetrating through the movable template 10 and connected with the anti-collision groove 16 is further arranged on the side edge of the anti-collision groove 16, a plurality of ejector rods 20 penetrate through the movable template 10, and the ejector rods 20 penetrate through the ejector rod groove 18 and are connected with the corresponding reverse ejector blocks 13.
The injection molding process is through the high pressure with the injection molding liquid injection, can lead to pouring tube 14 to rock under high pressure, in this example, extends pouring tube 14 into connecting groove 17, prevents that pouring tube 14 from rocking through the restriction of connecting groove 17 inner wall, and in addition, ejecting in-process, ejector pin 20 through remove with reverse kicking block 13 rebound in ejector pin groove 18, and have the clearance between connecting groove 17 and ejector pin groove 18, ejecting in-process ejector pin 20 can not influence pouring tube 14.
The forming surface 12 is provided with a plurality of criss-cross grooves 19, when the die is closed, each reverse top block 13 is attached to one groove 19, and the transition flow channel 15 on the reverse top block 13 is communicated with the groove 19.
In this example, on one hand, the injection liquid can flow into the groove 19 and rapidly flow into each place of the forming surface 12 under the guiding action of the groove 19, and on the other hand, the injection liquid forms a plurality of reinforcing strips in the groove 19, which can increase the strength of the plastic part, and the reinforcing strips are positioned on the back of the plastic part, so that the appearance is not influenced.
As shown in fig. 4-5, the forming surface 12 is further provided with a plurality of top block grooves 21, each top block groove 21 is movably connected with a top block 22, the inner wall of one top block groove 21 is provided with a first empty groove 23, the bottom of the first empty groove 23 close to the injection plate 11 is communicated with a first circular groove 24, the top block 22 movable in the top block groove 21 is provided with a second empty groove 25 opposite to and communicated with the first empty groove 23, and the bottom of the second empty groove 25 is communicated with a second circular groove 26 opposite to and communicated with the first circular groove 24.
In this example, the first empty groove 23, the first circular groove 24, the first empty groove 23 and the second empty groove 25 are used for forming a snap joint on the plastic part.
A lug 27 is arranged in the second empty groove 25, the lug 27 extends into the first empty groove 23, and three thin side grooves 28 are respectively arranged on the inner walls of the lug 27 and the second empty groove 25.
In this example, the thin edge groove 28 is used to form a clamping strip on the plastic part clamp joint, which can increase the clamping force when extending the clamp joint into a corresponding clamping groove in the automotive steel frame.
Wherein, a plurality of push rods 20 are arranged on a plurality of connecting points formed by the staggered arrangement of the grooves 19.
In this example, the strength of the reinforcing strip formed by the groove 19 is high, and the ejector rod 20 ejects the plastic part by abutting against the reinforcing strip, so that the damage of the plastic part caused by overlarge ejection force or weak plastic part when the ejector rod 20 directly abuts against the body of the plastic part is avoided.
One end of the forming surface 12 is movably connected with a plurality of inclined ejecting blocks 29, and the moving directions of the inclined ejecting blocks 29 are the same when demoulding.
In this example, the moving direction of the plurality of the inclined ejecting blocks 29 is the same, and since the plastic part is connected with the plurality of the ejector rods 20 and the reverse ejecting block 13, the inclined ejecting blocks 29 drag the plastic part to move along the horizontal direction to disconnect the plastic part from the plurality of the ejector rods 20 and the reverse ejecting block 13.
The movable mould plate 10 is further provided with a core-pulling driver 30, an output shaft of the core-pulling driver 30 is obliquely arranged, and an inclined forming block 31 close to the forming surface 12 is connected to the output shaft.
In this example, the gap between the inclined forming block 31 and the forming surface 12 is used for forming the inclined surface of the plastic part, and during the demolding process, the core-pulling driver 30 is firstly operated to make the inclined forming block 31 far away from the plastic part and be disconnected from the plastic part, and in addition, the core-pulling driver 30 can be an air cylinder or an oil cylinder.
The utility model discloses a theory of operation: the injection liquid flows into a transition flow channel 15 in the reverse ejector block 13 through a pouring pipe 14 and flows into a forming surface 12 through the transition flow channel 15 for forming a plastic part, when the injection liquid flows into a groove 19, the injection liquid quickly flows into each position of the forming surface 12 under the guiding action of the groove 19 and forms a plurality of reinforcing strips, when demoulding, a core-pulling driver 30 is firstly operated to enable an inclined forming block 31 to be far away from the plastic part and to be disconnected with the plastic part, then a plurality of ejector rods 20 eject the plastic part upwards from the reverse ejector block 13 towards the direction far away from an injection plate 11, the plurality of ejector rods 20 eject the plastic part by ejecting the reinforcing strips, and an inclined ejector block 29 drags the plastic part to move along the horizontal direction to disconnect the plastic part from the plurality of ejector rods 20 and the reverse ejector block 13.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the movable die plate 10, the injection-molded plate 11, the molding surface 12, the reverse top block 13, the pouring tube 14, the transition flow channel 15, the knock-preventing groove 16, the connecting groove 17, the ejector groove 18, the groove 19, the ejector 20, the top block groove 21, the top block 22, the first empty groove 23, the first round groove 24, the second empty groove 25, the second round groove 26, the projection 27, the thin-edge groove 28, the slanting top block 29, the core-pulling driver 30, the slanting-surface molding block 31, the hot runner 32, etc., are used more herein, these terms are used only for the convenience of describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. A hot runner reverse ejector block demoulding mechanism of a new energy automobile exterior trimming part mould comprises a movable mould plate (10) and an injection moulding plate (11), it is characterized in that the movable template (10) is provided with a forming surface (12), the forming surface (12) is movably connected with a plurality of reverse ejector blocks (13) which can reciprocate along the axial direction of the movable template (10), the injection molding plate (11) is connected with a plurality of pouring pipes (14) extending towards the molding surface (12), the pouring pipes (14) are in one-to-one correspondence with the reverse ejector blocks (13), the pouring pipe (14) is connected with the corresponding reverse top block (13), a transition flow channel (15) is arranged on the reverse top block (13), two ends of the transition flow channel (15) are respectively communicated with the corresponding pouring tube (14) orifice and the forming surface (12), and a plurality of hot runners (32) are arranged in the movable template (10) in a penetrating way.
2. The hot runner inverted ejecting block demolding mechanism for the new energy automobile exterior trimming part mold according to claim 1, wherein the width of the connecting port of the transition flow channel (15) and the pouring tube (14) is larger than the width of the connecting port of the transition flow channel (15) and the forming surface (12), and the end of the transition flow channel (15) close to the pouring tube (14) is provided with a circular arc surface.
3. The hot runner reverse ejection block demolding mechanism for the new energy automobile exterior trim part mold according to claim 2, wherein a plurality of anti-collision grooves (16) corresponding to the reverse ejection blocks (13) in a one-to-one manner are formed in the movable mold plate (10), and when the mold is closed, the reverse ejection blocks (13) are located in the corresponding anti-collision grooves (16) and movably connected with the same.
4. The hot runner reverse ejector block demolding mechanism for the new energy automobile exterior trimming part mold according to claim 3, wherein a connecting groove (17) penetrating through the movable mold plate (10) is connected in the anti-collision groove (16), the pouring tube (14) extends into the corresponding connecting groove (17) and is connected with the corresponding transition flow channel (15), a ejector rod groove (18) penetrating through the movable mold plate (10) and connected with the anti-collision groove (16) is further formed in the side edge of the anti-collision groove (16), a plurality of ejector rods (20) penetrate through the movable mold plate (10), and the ejector rods (20) penetrate through the ejector rod groove (18) and are connected with the corresponding reverse ejector block (13).
5. The hot runner reverse top block demolding mechanism for the new energy automobile exterior trimming part mold according to claim 4, wherein a plurality of criss-cross grooves (19) are formed in the forming surface (12), each reverse top block (13) is attached to one groove (19) during mold closing, and the transition flow channel (15) on each reverse top block (13) is communicated with the groove (19).
6. The hot runner reverse ejector block demoulding mechanism of the new energy automobile exterior trimming part mould according to claim 1, wherein a plurality of ejector block grooves (21) are further arranged on the forming surface (12), an ejector block (22) is movably connected in each ejector block groove (21), a first empty groove (23) is arranged on the inner wall of one ejector block groove (21), the first empty groove (23) is communicated with a first circular groove (24) close to the bottom of the injection molding plate (11), a second empty groove (25) opposite to and communicated with the first empty groove (23) is arranged on the ejector block (22) movable in the ejector block groove (21), and a second circular groove (26) opposite to and communicated with the first circular groove (24) is communicated with the bottom of the second empty groove (25).
7. The hot runner reverse ejector block demolding mechanism for the new energy automobile exterior trimming part mold according to claim 6, wherein a bump (27) is arranged in the second hollow groove (25), the bump (27) extends into the first hollow groove (23), and three thin edge grooves (28) are respectively arranged on the inner walls of the bump (27) and the second hollow groove (25).
8. The hot runner reverse ejector block demoulding mechanism of the new energy automobile exterior trimming part mould according to claim 5, wherein a plurality of ejector rods (20) are arranged on a plurality of connecting points formed by the staggered arrangement of the grooves (19).
9. The hot runner reverse ejection block demoulding mechanism of the new energy automobile exterior trimming part mould according to claim 1, wherein one end of the forming surface (12) is movably connected with a plurality of inclined ejection blocks (29), and the moving directions of the plurality of inclined ejection blocks (29) are the same during demoulding.
10. The hot runner reverse ejector block demolding mechanism of the new energy automobile exterior trimming part mold according to claim 1, wherein a core-pulling driver (30) is further arranged on the movable mold plate (10), an output shaft of the core-pulling driver (30) is obliquely arranged, and an inclined forming block (31) close to the forming surface (12) is connected to the output shaft.
CN201922019518.0U 2019-11-20 2019-11-20 Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould Active CN211542161U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922019518.0U CN211542161U (en) 2019-11-20 2019-11-20 Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922019518.0U CN211542161U (en) 2019-11-20 2019-11-20 Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould

Publications (1)

Publication Number Publication Date
CN211542161U true CN211542161U (en) 2020-09-22

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Application Number Title Priority Date Filing Date
CN201922019518.0U Active CN211542161U (en) 2019-11-20 2019-11-20 Hot runner reverse ejector block demoulding mechanism of new energy automobile exterior trimming part mould

Country Status (1)

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