KR101814956B1 - Mold for manufacturing weather strip corner portion - Google Patents

Abstract

A mold for manufacturing weather strip corner portion comprises an upper mold, a lower mold, and a fixing pin. The upper mold has a wing groove having a shape of a wing portion of the weather strip corner portion and an injection hole for injecting materials for manufacturing the weather strip corner portion into the wing groove. The lower mold may include curved grooves disposed at a lower portion of the upper mold and having an outer surface shape of the hollow portion of the weather strip corner portion. The fixing pin extends from a blade groove of the upper mold toward the lower mold to protrude, and in order to insert a first fixing member into the wing portion of the weather strip corner portion, the first fixing member can be seated while manufacturing the weather strip corner portion.

Description

METHOD FOR MANUFACTURING WEATHER STRIP CORNER PORTION

The present invention relates to a mold for manufacturing a weather strip corner portion. And more particularly, to a mold and a method for manufacturing a weather strip corner portion for manufacturing a weather strip corner portion mounted on a vehicle.

A weather strip refers to an elastic rubber or a sponge that is tightly fitted between a door of a vehicle and a body of the vehicle to prevent rain, water, dust, etc. from entering the room when the door of the vehicle is closed.

The weather strip serves to prevent impacts when the door is opened and closed, and to prevent the door from vibrating. The weather strip is used for sealing the trunk room of the vehicle as well as the door.

The weather strip includes a weather strip corner portion, a first weather strip which is connected to one side of the weather strip corner portion and extends in one direction by extruding a material, and a second weather strip portion connected to the other side of the weather strip corner portion, The second weather strip extending in the other direction.

Specifically, the weather strip is formed by sandwiching a first weather strip and a second weather strip in a mold, and injecting a material between the first and second weather strips to form a weather strip, which connects between the first and second weather strips. A corner portion can be manufactured.

In Korean Patent No. 10-1414803, Korean Patent No. 10-1365982 discloses a method for roughening the surface of a weather strip corner portion in a conventional manner. In Korean Patent No. 10-1365982, Discloses a heat welding method using a film, and Korean Patent Publication No. 2002-0040282 discloses a heat welding apparatus for connecting weather strips.

When the weather strip is formed into a single body, there arises a problem that the weather strip corner portions are stretched in an undesired direction due to the first and second weather strips extending in different directions. As described above, The weather strip is mainly manufactured.

The above-described conventional techniques do not disclose techniques for fixing the weather strip corner portion to the corner of the door, and a technique for improving the quality of the weather strip corner portion while fixing the weather strip corner portion to the corner of the door Research is needed.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a weather strip corner part manufacturing method which improves the quality of a blade part and a hollow part of a weather strip corner part which is lowered by inserting the fixing member while inserting a fixing member into a wing part of a weather strip corner part, To provide a mold.

It is to be understood that the invention is not limited to the disclosed exemplary embodiments and that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

According to another aspect of the present invention, there is provided a method of manufacturing a weather strip, comprising the steps of: preparing a weather strip having a hollow portion having an inner space and a wing portion extending from the hollow portion, And the other side of the hollow portion can be connected to a second weather strip extending in a second direction intersecting with the first direction, the mold comprising: an upper mold, a lower mold and a fixing pin . ≪ / RTI > The upper metal mold may include a blind hole having a shape of the wing portion of the weather strip corner portion on the bottom surface and an injection hole for injecting a material for manufacturing the weather strip corner portion into the blind groove. The lower mold may include curved grooves disposed at a lower portion of the upper mold and having an outer surface shape of the hollow portion of the weather strip corner portion. Wherein the fixing pin protrudes from the wing groove of the upper mold to extend toward the lower mold and while the weather strip corner portion is manufactured to insert the first fixing member into the wing portion of the weather strip corner portion, The member can be seated.

In exemplary embodiments, the apparatus may further include an intermediate mold interposed between the upper mold and the lower mold. The intermediate mold has an intermediate mold body, one side of which is supported by the connecting rod from the intermediate mold body, the other side of which is spaced apart from the intermediate mold body and extends along the curved groove of the lower mold, A plurality of grooves disposed in the hollow frame and opened toward the intermediate mold body, and a plurality of grooves inserted into the grooves to generate a plurality of fixing holes for fitting the second fixing member into the inner space, And a plurality of protrusions that can be detached from the grooves to detach the weather strip corner portion from the hollow mold and each extending from the intermediate mold body toward the grooves.

In exemplary embodiments, the intermediate mold is disposed on at least one projection of the projections and extends toward a corresponding one of the grooves so that when the projections are disengaged from the grooves, the other side of the hollow frame And a coupling protrusion for supporting the hollow frame to prevent the hollow frame from being twisted.

In the exemplary embodiments, the intermediate mold body may include a hinge portion hingedly connected to the lower mold and a rotation shaft, a first body having the projections disposed therein, and a second body disposed between the connection rod and the hinge portion, And a second body for guiding movement of the first body so that the protrusions can be inserted or released toward the grooves.

In exemplary embodiments, the lower mold may further include a hooking groove disposed at a lower portion of the hinge portion. The second body may include a guide hole for guiding the movement of the first body. The first body includes a body portion in which the protrusions are disposed, a guide rod having one side extending from the body portion and passing through the guide hole of the second body, a guide rod disposed in a space between the body portion and the second body, An elastic member inserted into the guide rod to provide an elastic force to insert the protrusions into the grooves by pushing the body portion, and an elastic member connected to the other side of the guide rod to rotate the second body when the second body rotates, And a fixture that fixes the body portion by hooking and detaches the protrusions from the grooves.

As described above, the mold for manufacturing the weather strip corner portion according to the exemplary embodiments of the present invention has the following effects.

First, a fixing pin for seating the first fixing member protrudes toward the lower mold from the blade groove of the upper mold. Thus, it is possible to minimize deterioration in quality caused by inserting the first fixing member into the wing portion without interfering with the flow of the material of the weather strip corner portion filled from the space of the lower mold.

Second, the first fixing member drops down by its own weight as the material is heated by more than 120 degrees, is inserted into the wing portion, and is mostly covered by the wing portion. Thus, the problem of defects caused by the first fixing member not being separated from the mold can be solved.

Third, the hollow portion of the weather strip corner portion contacts the vehicle body of the vehicle to prevent the inflow of rain, dust, etc., so that defects such as bubbles are minimized. According to the present invention, the curved grooves having the outer side surface shape of the hollow portion of the weather strip corner portion are disposed in the lower mold, so that the above-described defects can be minimized by filling the space of the lower mold first.

Fourthly, the plurality of protrusions included in the intermediate mold can be inserted or removed from the plurality of grooves disposed in the hollow frame, respectively. Accordingly, during molding, the protrusions are inserted into the grooves, and when the molding is completed, The protrusions can be disengaged, and a fixing hole for inserting the second fixing member can be easily generated.

Fifth, in order to peel off the formed weather strip corner portion from the hollow frame for forming the internal space, only one side of the hollow frame is supported by the intermediate mold body, and the other side of the hollow frame is separated from the intermediate mold body .

As a result, a problem arises that the hollow frame is twisted after frequent molding operations. However, the other side of the hollow frame can be supported by using the connecting protrusions, thereby enhancing the durability of the mold.

Sixth, when the second body is rotated, the first body is rotated by the elastic member as the second body, and then fixed by the fixing member. Accordingly, the protrusions disposed in the body of the first body can be separated from the grooves, respectively.

Therefore, by rotating only the second body, the protrusions can be separated from the grooves, so that it is possible to dispense with the manual operation of the user to separate the protrusions from the grooves all the time, and to improve the productivity.

1 and 2 are perspective views showing a weather strip corner portion according to exemplary embodiments.
3 is a perspective view illustrating a mold for manufacturing a weather strip corner portion according to exemplary embodiments;
4 is a perspective view showing a state where the upper mold of the metal mold for manufacturing the weather strip of FIG. 3 is rotated and the first fixing member is inserted into the upper mold.
5 is a side view showing a mold for producing the weather strip of FIG.
6 to 14 are perspective views and side views showing a method of manufacturing a weather strip using a metal mold for manufacturing a weather strip.
Specifically, FIG. 6 is a perspective view showing a state in which the upper mold of the metal mold for rotating the weather strip of FIG. 3 is rotated.
7 is a side view showing a mold for producing the weather strip of FIG. 6;
8 is a perspective view showing a state in which the side mold is moved by pushing the push rod of the metal mold for producing the weather strip of FIG.
Fig. 9 is a side view showing a mold for producing the weather strip of Fig. 8; Fig.
10 is a perspective view showing a state in which an intermediate mold is rotated by pushing a push rod of a metal mold for producing a weather strip of FIG.
11 and 12 are perspective views showing a state in which a plurality of projections of an intermediate mold are separated from a plurality of grooves by pushing a push rod of a mold for producing a weather strip of FIG.
Figs. 13 and 14 are side views for explaining the principle in which a plurality of protrusions are separated from the plurality of grooves by the fixing. Fig.
15 and 16 are sectional views for explaining the effect when the fixing pin is mounted on the upper mold.

For the embodiments of the invention disclosed herein, specific structural and functional descriptions are set forth for the purpose of describing an embodiment of the invention only, and it is to be understood that the embodiments of the invention may be practiced in various forms, The present invention should not be construed as limited to the embodiments described in Figs.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprise", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be construed as meaning consistent with meaning in the context of the relevant art and are not to be construed as ideal or overly formal in meaning unless expressly defined in the present application .

1 and 2, the weather strip includes a weather strip corner portion 10, a first weather strip 20 connected to one side of the weather strip corner portion 10 and formed by extruding a material and extending in one direction, And a second weather strip (30) connected to the other side of the weather strip corner portion (10) and extruded to extend in another direction intersecting with the one direction.

Specifically, the weather strip is formed by sandwiching the first weather strip 20 and the second weather strip 30 in a metal mold, injecting a material between the first and second weather strips 20 and 30, It can be completed by manufacturing the weather strip corner portion 10 connecting between the second weather strips 20 and 30.

The weather strip corner portion 10 includes a hollow portion 12 having an inner space and a wing portion 14 to be fixed to the door. The wing portion 14 has a plurality of through holes 42 And a first fixing member 40 which is almost entirely covered by the wing portion 14 and only partially exposed is inserted and the hollow portion 12 is inserted into the inner space through the fixing hole 52 of the hollow portion 12, 2 fixing member 50 can be inserted.

3 is a perspective view illustrating a mold for manufacturing a weather strip corner portion according to exemplary embodiments; FIG. 4 is a perspective view showing a state in which the upper mold of the metal mold for manufacturing the weather strip of FIG. 3 is rotated and the first fixing member is inserted into the upper mold. 5 is a side view showing a mold for producing the weather strip of FIG.

3 to 5, a mold for manufacturing a weather strip corner according to exemplary embodiments includes an upper mold 100, a side mold 200, an intermediate mold 300, a lower mold 400, And may include a fixing pin 500.

The upper mold 100 is manufactured by manufacturing the weather strip corner portion 10 with the wing grooves 104 and the wing grooves 104 having the shape of the wing portion 14 of the weather strip corner portion 10 on the bottom surface 102 (Not shown).

The upper mold 100 may further include a hinge portion 110 hinged to the lower mold 400 and a handle 120 for rotationally moving the hinge portion 110 about the hinge portion 110. In the exemplary embodiment, have.

The fixing pin 500 to be described later may extend from the blade groove 104 toward the lower mold 400 so that the first fixing member 40 is fixed to the fixing pin 500 through the through hole 42 . A plurality of fixing pins 500 may be provided and correspond to the plurality of through holes 42, respectively.

The side mold 200 includes a groove 210 having a shape of a wing portion 14 of the weather strip corner portion 10 and can be slidably moved by a push rod 600 described later on the lower mold 400 can do. For example, the groove 210 having the shape of the wing portion 14 of the side mold 200 forms one side of the wing portion 14, and the wing groove 104 of the upper mold 100 forms the wing portion 14 may be formed on the other surface opposite to the one surface.

The side mold 200 may be disposed on the side of the upper mold 100 and on the upper portion of the lower mold 400 to form one side of the weather strip corner portion 10.

The side mold 200 includes a first side body 220 slidably moved by the push rod 600 on the lower mold 400 and a second side body 220 protruding from the side of the first side body 220 A first side roller 222 which rotates on the first guide part 402 of the lower mold 400 and a second side roller 222 which is disposed on the first side body 220 and is supported by the first side body 220 and the hinge 240 And a second side roller 232 protruding from the side of the second side body 230 and rotating on the second guide portion 404 of the lower mold 400 can do.

The second guide portion 404 may include a stepped portion (not shown) having a different height and the second side roller 232 of the side mold 200 may be slid by the push rod 600, The side body 230 can be opened from the first side body 220 around the hinge 240 by the stepped portion of the second guide portion 404.

The intermediate mold 300 may be interposed between the upper mold 100 and the lower mold 400. 11), a plurality of protrusions 340 (see Fig. 11), a plurality of protrusions 340 (see Fig. . ≪ / RTI >

The other side of the hollow frame 320 is separated from the intermediate mold body 310 and is connected to the curved grooves 410 of the lower mold 400 To provide the internal space of the hollow portion 12.

Although the one side is supported by the connecting rod 312, the other side should be separated from the middle mold body 310, but the completed weather strip corner portion 10 can be detached from the hollow frame 320. However, even if the one side is supported by the connecting rod 312, it is possible to somewhat prevent the hollow frame 320 from being twisted by the coupling protrusion 350, which will be described later.

The grooves 330 may be disposed along the extending direction of the hollow frame 320 and open toward the middle mold body 310.

The protrusions 340 may serve to create a plurality of fixing holes 52 for fitting the second fixing member 50 into the inner space. And can be released from the grooves 330 to detach the finished weather strip corner portion 10 from the hollow frame 320. [ Further, the protrusions 340 may extend from the intermediate mold body 310 toward the grooves 330, respectively.

The intermediate mold 300 is disposed on at least one protrusion of the protrusions 340 and extends toward the corresponding one of the grooves 330 so that the protrusions 340 protrude from the grooves 330. [ And a connection protrusion 350 for supporting the other side of the hollow frame 320 and preventing the hollow frame 320 from being twisted when separated from the hollow frame 320.

When the protrusions 340 are separated from the grooves 330, the hollow frame 320 can be rotated while the one side and the other side are supported by the connection rod 312 and the coupling protrusion 350. It is needless to say that the connecting protrusion 350 is also completely separated from the corresponding groove in order to detach the completed weather strip corner portion 10 from the hollow frame 320.

In the exemplary embodiments, the intermediate mold body 310 further includes a hinge portion 360 (see FIG. 11), a first body 370 (see FIG. 11), and a second body 380 (see FIG. 11) .

The hinge unit 360 can be hingedly connected to the lower mold 400 about the rotation axis. Specifically, the hinge unit 360 can hinge the second body 380 and the lower mold 400, which will be described later.

The protrusions 340 are disposed on the first body 370 and the protrusions 340 can be inserted into or removed from the recesses 330 by guiding movement of the second bodies 380.

The second body 380 is disposed between the connection rod 312 and the hinge portion 360 and can be rotated about the rotation axis. For example, the second body 380 may include a push rod 362 connected to the push rod 600, a rotary rod 362 (see FIG. 7) positioned opposite the second body 380 with the hinge 360 therebetween, The second body 380 can be rotated about the rotation axis while being pressed by the second body 610 (see FIG. 7).

The second body 380 may guide the movement of the first body 370 so that the protrusions 340 disposed in the first body 370 may be inserted into or removed from the recesses 330.

For example, the second body 380 may include a guide hole 382 (see FIG. 10) for guiding the movement of the first body 370, and the first body 370 may include a body portion 374, 10), a guide rod 372 (see FIG. 10), an elastic member 378 (see FIG. 10), and a latch 376 (see FIG. 12).

The protrusions 340 may be disposed on the body portion 374 and one side of the guide rod 372 may extend from the body portion 374 and pass through the guide holes 382 of the second body 380. Accordingly, the guide rod 372 is guided along the guide hole 382, and the first body 370 is guided by the second body 380.

The elastic member 378 is disposed in a space between the body portion 374 and the second body 380 and is inserted into the guide rod 372 to push the body portion 374 to push the protrusions 340 into the grooves 330, respectively. When the second body 380 is rotated by the push bar 610 of the push rod 600, the elastic member 378 is moved in a direction in which the latch 376, which will be described later, 420, see FIG. 13), the first body 370 rotates as the second body 380 rotates.

The clamp 376 is connected to the other side of the guide rod 372 and engages with the hooking groove 420 of the lower mold 400 to fix the body 374 when the second body 380 rotates . Accordingly, the second body 380 continues to rotate, and the first body 370 stops rotating, and is rotated through the second body 380, the connecting rod 312, and the hollow frame 320 330 are continuously rotated and the protrusions 340 disposed in the first body 370 are fixed so that the protrusions 340 are separated from the recesses 330. [

The lower mold 400 is disposed at a lower portion of the upper mold 100 and includes a curved surface groove 410 having an outer surface shape of the hollow portion 12 of the weather strip corner portion 10, (Not shown).

The lower mold 400 includes a hole (not shown) through which the push rod 600 can pass, and when the push rod 600 is pushed along the hole, the side mold 200 are slid and the intermediate mold 300 can be rotated.

Hereinafter, a method of manufacturing the weather strip corner portion 10 using the metal mold will be mainly described.

6 to 14 are perspective views and side views showing a method of manufacturing a weather strip using a metal mold for manufacturing a weather strip.

Specifically, FIG. 6 is a perspective view showing a state in which the upper mold of the metal mold for rotating the weather strip of FIG. 3 is rotated. 7 is a side view showing a mold for producing the weather strip of FIG. 6; 8 is a perspective view showing a state in which the side mold is moved by pushing the push rod of the metal mold for producing the weather strip of FIG. Fig. 9 is a side view showing a mold for producing the weather strip of Fig. 8; Fig. 10 is a perspective view showing a state in which an intermediate mold is rotated by pushing a push rod of a metal mold for producing a weather strip of FIG. 11 and 12 are perspective views showing a state in which a plurality of projections of an intermediate mold are separated from a plurality of grooves by pushing a push rod of a mold for producing a weather strip of FIG. Figs. 13 and 14 are side views for explaining the principle in which a plurality of protrusions are separated from the plurality of grooves by the fixing. Fig.

3 and 4, the upper mold 100 is opened using the grip 120 and the hinge 110, the first fixing member 40 is inserted into the fixing pin 500, The mold 100 can be closed to cover the side mold 200, the intermediate mold 300, and the lower mold 400.

After the first weather strip 20 and the second weather strip 30 are sandwiched between the side mold 200, the intermediate mold 300 and the lower mold 400, the injection holes 130 of the upper mold 100 ) And then heated to a predetermined temperature.

The first fixing member 40 fitted to the fixing pin 500 may be fixed to the fixing pin 500 and the first fixing member 40 by using a heater or the like. The first fixing member 40 can be inserted into the wing portion 14 by the difference in volume deformation caused by heating with the first fixing member 40 and the weight of the first fixing member 40. [

Thereafter, the material is cooled to room temperature to manufacture the weather strip corner portion 10, and the work for removing the weather strip corner portion 10 from the mold should proceed.

Referring to FIGS. 6 and 7, the upper mold 100 can be opened using the handle 120 and the hinge 110. At this time, since the first fixing member 40 is inserted into the wing portion 14, it is not shown in FIGS.

8-11, the push rod 600 is pushed to slide the side mold 200 connected to one end of the push rod 600 on the lower mold 400, and at the same time, The push bar 610 connected to the other end pushes the rotary rod 362 (see FIG. 7), and the second body 380 of the intermediate mold 300 rotates about the hinge portion 360.

8 and 9 show a state in which the intermediate mold 300 does not rotate about the hinge portion 360 since the side mold 200 is slid on the lower mold 400. [

The first side roller 220 is rotated on the first guide portion 402 of the lower mold 400 so that the first side body 220 of the side mold 200 can slide on the lower mold 400 .

The second side roller 232 is rotated on the second guide portion 404 and guided by the second guide portion 404 to slide the second side body 230. Particularly, the stepped portion of the second guide portion 404 can rotate relative to the first side body 220 about the hinge 240.

The second side body 230 may extend around the first side body 220 and the hinge 240 so that the wing portion 14 of the weather strip corner portion 10 can be easily removed from the mold So that it can be removed.

10 and 13, when the push rod 600 is pushed, the push bar 610 connected to the other end of the push rod 600 pushes the rotary rod 362 (see FIG. 7) The second body 380 of the second body 300 rotates about the hinge 360. [ 13 shows a part of the components omitted for convenience of explanation.

At this time, the weather strip corner portion 10 sandwiched by the hollow frame 320 of the intermediate mold 300 is lifted upward.

When the second body 380 is rotated by the push bar 610 of the push rod 600, the elastic member 378 is moved in the direction in which the latch 376 engages with the hooking groove 420 of the rear mold 400 The first body 370 of the intermediate mold 300 may be provided with an elastic force such that the first body 370 rotates together with the second body 380 until the second body 380 is caught.

The protrusions 340 disposed on the first body 370 are rotated around the hinge 360 as the first body 370 while being inserted into the recesses 300. [

11, 12, and 14, when the push rod 600 is continuously pushed and the second body 380 further rotates, the fastener 376 (see FIG. 12) The body portion 374 can be fixed by being caught by the groove 420. For convenience of explanation, Figs. 12 and 14 omit some of the constituent elements.

Accordingly, the second body 380 continues to rotate, and the first body 370 stops rotating, and is rotated through the second body 380, the connecting rod 312, and the hollow frame 320 330 are continuously rotated and the protrusions 340 disposed in the first body 370 are fixed so that the protrusions 340 are separated from the recesses 330. [

At this time, it is possible to prevent the hollow frame 320 from being twisted by supporting the other side of the hollow frame 320 by the connection protrusions 350 disposed on at least one of the protrusions 340, The connection protrusions 350 are eventually detached from the grooves.

Thereafter, the weather strip corner portion 10 is detached from the hollow frame 320, the second fixing member 50 is inserted into the fixing hole 52, and a calibrator or the like is attached to the first fixing member 40, The strip corner portion 10 can be finally completed.

Referring to FIG. 15, the first fixing member 40 is fixed to a fixing device provided in a lower mold during molding. However, the first fixing member 40 interferes with the flow of the material m injected from the injection hole of the upper mold, 40 can not be sufficiently covered by the wing portion 14.

Also, when the molding is completed, the first fixing member 40 is separated from the fixing device provided in the lower mold and inserted into the wing portion 14, but the first fixing member 40 is not separated The rate of defect occurrence is high.

When the hollow portion 12 of the weather strip is formed mainly by the upper mold, the material m fills the space provided in the lower mold and then fills the space of the upper mold. Therefore, The portion 12 generates bubbles or has a low density.

As described above, the mold for manufacturing the weather strip corner portion 10 according to the exemplary embodiments of the present invention has the following effects.

First, a fixing pin 500 for seating the first fixing member 40 is protruded from the blade groove 104 of the upper mold 100 toward the lower mold 400. Thereby, the first fixing member 40 is inserted into the wing portion 14 without interfering with the flow of the material of the weather strip corner portion 10 filled from the space of the lower mold 400, It is possible to minimize the deterioration of the quality of the battery 10.

Second, the first fixing member 40 is dropped by its own weight as the material is heated by 120 degrees or more, and is inserted into the wing portion 14, so that the wing portion 14 covers the most. As a result, the problem of defects that occur when the first fixing member 40 is not separated from the mold can be solved.

Third, since the hollow portion 12 of the weather strip corner portion 10 contacts the vehicle body of the vehicle to prevent the inflow of rain, dust, and the like, defects such as bubbles are minimized. According to the present invention, the curved surface groove 410 having the outer surface shape of the hollow portion 12 of the weather strip corner portion 10 is disposed by the lower mold 400 so that the material is arranged in the space of the lower mold 400 First, the failure described above can be minimized.

Fourthly, the protrusions 340 included in the intermediate mold 300 can be inserted or removed from the grooves 330 disposed in the hollow frame 320, respectively. Accordingly, during the molding, the protrusions 340 The protrusions 340 can be detached from the grooves 330 and the fixing holes 52 for inserting the second fixing members 50 can be easily formed.

Fifthly, in order to peel off the molded weather strip corner portion 10 from the hollow frame 320 for forming the inner space, only the one side of the hollow frame 320 is connected to the intermediate mold body 310 And the other side of the hollow frame 320 is spaced apart from the intermediate mold body 310.

Accordingly, the hollow frame 320 may be twisted after frequent molding operations. However, the other side of the hollow frame 320 can be supported by using the connecting protrusions 350, thereby enhancing the durability of the mold.

Sixth, when the second body 380 is rotated, the first body 370 is rotated by the elastic member 378 as the second body 380, and is fixed by the fastener 376. The protrusions 340 disposed on the body portion 374 of the first body 370 may be separated from the recesses 330 respectively.

Therefore, if only the second body 380 is rotated, the protrusions 340 can be separated from the grooves 330, so that the user can dispense with the manual operation of separating the protrusions 340 from the grooves 330, Can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be understood.

10: weather strip corner portion 12: hollow portion
14: wing portion 20: first weather strip
30: second weather strip 40: first fixing member
42: through hole 50: second fixing member
52: Fixing hole 100: Upper mold
102: bottom surface 104: wing groove
110: hinge part 120: handle
130: injection hole 200: side mold
210: groove 220: first side body
222: first side roller 230: second side body
232: second side roller 240: hinge
300: intermediate mold 310: intermediate mold body
312: connection rod 320: hollow frame
330: groove 340: projection
350: connecting projection 360: hinge
362: rotating rod 370: first body
372: guide rod 374:
376: fastener 378: elastic member
380: second body 382: guide hole
400: lower mold 402: first guide part
404: second guide part 410: curved surface groove
420: Hook groove 500: Fixing pin
600: push rod 610: push bar

Claims (5)

A hollow portion having an inner space and a wing portion extending from the hollow portion, wherein one side of the hollow portion is connected to a first weather strip extending in a first direction, and the other side of the hollow portion is connected to the first direction in a second direction A mold for manufacturing a weather strip corner portion connected to an extended second weather strip,
An upper mold including a wing groove having a shape of the wing portion of the weather strip corner portion and an injection hole for injecting a material for manufacturing the weather strip corner portion into the wing groove on the bottom surface;
A lower mold disposed at a lower portion of the upper mold and including a curved groove having an outer shape of the hollow portion of the weather strip corner; And
Wherein the first fixing member is seated while the first fixing member is protruding from the wing groove of the upper mold to protrude toward the lower mold and during manufacture of the weather strip corner portion for inserting the first fixing member into the wing portion of the weather strip corner portion And a fixing pin,
An intermediate mold interposed between the upper mold and the lower mold and a side mold including a groove slidable on the lower mold and disposed on a side of the upper mold and having a shape of the wing portion of the weather strip corner portion Including,
Wherein the intermediate mold comprises:
Intermediate mold body;
A hollow frame extending from the intermediate mold body through one side of the intermediate mold body and the other side extending from the intermediate mold body along the curved surface groove of the lower mold to create the internal space of the hollow portion;
A plurality of grooves disposed in the hollow frame and opened toward the intermediate mold body; And
Each of the grooves may be inserted from the grooves to create a plurality of fixing holes for fitting the second fixing member into the inner space, or may be detached from the grooves to detach the weather strip corner from the hollow frame, And a plurality of protrusions each extending from the body toward the grooves. delete The mold of claim 1,
A plurality of protrusions arranged on at least one of the protrusions and extending toward the corresponding grooves of the grooves to support the other side of the hollow frame when the protrusions are separated from the grooves to prevent the hollow frame from being twisted, The mold for manufacturing a weather strip corner portion according to claim 1, further comprising a projection. 2. The mold according to claim 1,
A hinge unit hingedly connected to the lower mold about a rotation axis;
A first body on which the protrusions are disposed; And
And a second body disposed between the connecting rod and the hinge portion and guiding movement of the first body such that the first body rotates about the rotation axis and the protrusions are inserted or released toward the grooves. Mold for manufacturing parts. [5] The apparatus of claim 4, wherein the lower mold further comprises a hooking groove disposed at a lower portion of the hinge,
The second body includes a guide hole for guiding the movement of the first body,
The first body may include:
A body portion on which the projections are disposed;
A guide rod having one side extending from the body portion and passing through the guide hole of the second body;
An elastic member disposed in the space between the body and the second body, the elastic member being inserted into the guide rod and pushing the body to provide an elastic force to insert the protrusions into the grooves; And
And a fixture connected to the other side of the guide rod to fix the body part and detach the protrusions from the grooves by being hooked on the catching grooves of the lower mold when the second body rotates and move. Mold for manufacturing parts.

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