KR20240006111A - Molding device for door glass run forming - Google Patents

Abstract

A mold device for door glass run forming is disclosed. The mold device for door glass run molding according to an embodiment of the present invention involves the process of injection molding the connecting strip by supplying flocking tape in advance to the adsorption section formed on the rear core on the lower die before molding the connecting strip connected to the extrusion strip. , the flocking tape is formed to be integrally fused to the connecting strip by heat fusion.
In addition, the flocking tape supplied from the roll feeder is previously adsorbed to the tape seating surface of the suction part formed in the rear core according to the clamping operation of the tape supply unit, and is flocked around the tape seating surface by the cutting core that operates together with the upper type unit. Cut one side of the tape so that the flocking tape is automatically supplied into the mold.

Description

Mold device for door glass run forming {Molding device for door glass run forming}

The present invention relates to a mold device for door glass run molding, and more specifically, to connecting two extruded strips within a mold and molding the connecting strip corresponding to the corner of the door frame integrally with the automatically supplied flocking tape. It relates to a mold device for door glass run forming.

Generally, a door glass run is installed in a structure similar to an existing weather strip on a door frame that supports the door glass of a vehicle and guides the opening and closing operations of the door glass.

In other words, the door glass run maintains airtightness and watertightness to prevent rain, wind, dust, etc. from entering the room between the door glass and the door frame when the door glass is closed, and absorbs the vibration of the door glass while the vehicle is running, reducing wind noise. It functions to block inflow.

The door glass run is extruded from a rubber material and is integrally molded by a plurality of extruded strips that are installed along the perimeter of the door frame and a rubber material injected into the mold with the extruded strips installed in the mold, forming the corners of the door frame. It consists of corresponding connecting strips.

In order to correspond to the corner of the door frame, these door glass runs usually consist of two extruded strips at a certain angle and are integrally connected by a connecting strip or to the tip of one extruded strip. This connecting strip is formed by molding. It is molded into a certain shape within the mold, and the mold device for this is usually called a mold device for door glass run molding.

The mold device for forming a typical door glass run is similar to the mold device for forming the corner portion of a weather strip. In other words, an extrusion strip is set between the upper die and the lower die that can be separated and closely attached/joined, and a high-temperature rubber material is injected through the upper die to injection mold the connecting strip corresponding to the corner of the door frame integrally with the extrusion strip. do.

This door glass run maintains slippage and adhesion to the door glass by attaching flocking tape to the cross section in contact with the door glass, as shown in the prior art literature below.

Korea Intellectual Property Office registration number 10-0474230 (registration date February 22, 2005) However, the flocking tape attached to the door glass run is provided as an integral part of the extrusion process in the case of extruded strips, but is manually attached by the operator to the connecting strip connecting the extruded strips. Accordingly, the attachment position of the flocking tape attached to the connecting strip is uneven, and when attached using a double-sided tape, there is a problem in that the adhesive strength is insufficient and the flocking tape is lifted or peeled off from the connecting strip. On the other hand, in some cases, a heat drying process is added after attaching the flocking tape to increase the adhesive strength of the flocking tape attached to the connecting strip. However, this heat drying process causes the physical properties of the connecting strip to change, causing micro-deformation. There is. The matters described in this background art section have been written to improve understanding of the background of the invention, and may include matters that are not prior art already known to those skilled in the art in the field to which this technology belongs.

In an embodiment of the present invention, in the process of injection molding the connecting strip by supplying the flocking tape to the adsorption section formed in the rear core on the lower die before molding the connecting strip connected to the extrusion strip, the flocking tape is applied to the connecting strip by heat fusion. The object is to provide a mold device for door glass run molding that can be molded in an integrally fused state.

In an embodiment of the present invention, the flocking tape supplied from the roll feeder is adsorbed in advance on the tape seating surface of the suction part formed in the rear core according to the clamping operation of the tape supply unit, and the tape seating surface is moved by the cutting core operating together with the upper type unit. The object is to provide a mold device for door glass run molding that cuts one side of the flocking tape as a boundary and automatically supplies the flocking tape into the mold.

In one or more embodiments of the present invention, in a mold device for door glass run molding, a support die installed on a lower plate on a table, a lower die disposed to be able to be raised and lowered on an upper part of the support die, and a central hole of the lower die A lower mold unit consisting of a lower mold installed on the support die through; A front lower core installed on the lower die, a front upper core installed on the front lower core, and a flocking tape installed on a side opposite to the front lower core on the lower die, and on one side corresponding to the front lower core. A core unit consisting of a rear core having an adsorption portion for adsorbing and a cutting core disposed on an upper part of the rear core to cut one side of the flocking tape, and forming a molded portion together with the lower mold; It consists of an upper die installed at the lower part of the upper plate corresponding to the upper part of the core unit and operating together with the cutting core, and a material injection port for injecting material into one side of the upper die is formed corresponding to the molding part, and the core unit an upper unit joined with the lower unit with an interposition; And a clamper configured on one side of the lower mold unit to secure the flocking tape on the locator by the operation of the clamping cylinder moves along the rail by the operation of the forward and backward cylinder and automatically attaches the flocking tape to the adsorption portion of the rear core. A mold device for forming a door glass run including a tape supply unit may be provided.

The lower mold unit includes a lower plate installed on the table; a support die installed on the lower plate; a lower die disposed on the upper part of the support die and having a central hole formed in the center; A lower mold installed on the support die through the central hole and having a molding surface forming the molding portion on the upper surface; And it may include a lifting and lowering cylinder installed on both sides between the lower plate and the lower die to raise and lower the lower die with respect to the support die.

The core unit is fixedly installed on the lower mold die corresponding to the front of the lower mold, and is formed integrally with a strip installation end that installs an extrusion strip on one side corresponding to the rear core and a molding surface that forms the molding portion. core; a front upper core installed to be movable in a forward and backward direction on the front lower core, and having a molding surface forming the molding part on one surface corresponding to the cutting core; A rear core installed to be movable in the forward and backward directions on the lower mold die corresponding to the rear of the lower mold, and having an adsorption portion for vacuum suction of the flocking tape through a plurality of air holes formed on the tape seat surface. and is installed on the upper mold of the upper mold unit corresponding to the upper part of the rear core, and a molding surface forming the molding portion is formed on one surface corresponding to the front upper core, and is adsorbed to the suction portion with the tape seating surface as a boundary. It may include a cutting core that cuts the outside of the flocking tape.

Here, the adsorption unit has a plurality of air holes connected to a vacuum pipe on one side inside the rear core, formed along the circumference of the tape seating surface, and located on the lower side along the outer side of the tape seating surface and on the opposite side of the supply direction of the flocking tape. This can be achieved by forming a locking protrusion.

In addition, the cutting core includes a cutting blade formed to completely cut the flocking tape corresponding to an outside of the tape seating surface; And it may include a punching blade formed to punch the flocking tape along an entry direction boundary of the tape seating surface.

In addition, the front lower core may have first guide grooves formed on both sides of the upper surface in the front-back direction, and first guide ends guided in the front-back direction along the first guide grooves may be formed on both sides of the front upper core. .

In addition, the lower die has second guide grooves formed in the front-back direction on both sides of the upper surface corresponding to the rear core, and the rear core has second guide ends guided in the front-back direction along the second guide grooves on both sides of the lower die. can be formed.

In addition, the front lower core and the front upper core may each have an internal injection port formed to correspond to the material injection port on the upper shape.

Additionally, a cam guide means using a cam and a cam surface may be configured between the upper die and the front lower core, front upper core, rear core, and cutting core of the core unit.

That is, the cam guide means includes a front cam and a rear cam installed downwardly on both front and rear sides of the upper mold, respectively; a front cam surface formed as an inclined surface on both front sides of the front lower core and the front upper core, on which the front cam acts; a cam hole formed as a through hole with an inclined surface on one side of the rear core through which the rear cam acts; And it may include a rear cam surface formed as an inclined surface on one rear side of the cutting core on which the rear cam acts.

The tape supply unit includes a rail installed in the width direction on one side of the lower die corresponding to one side of the rear core; a locator movably installed on the rail through a slider; a clamper clamping the flocking tape together with the locator; a clamping cylinder fixed to the locator to operate the clamper; And adjacent to the rail, it is installed on the lower die through a cylinder bracket, and the tip of the operating rod is connected to one side of the locator through the rod bracket to move the locator, the clamper, and the clamping cylinder along the rail to a certain width. It may include a forward and backward cylinder that supplies the flocking tape to the adsorption portion of the rear core while moving forward and backward.

In addition, the tape supply unit includes a tape guide block installed on the lower die between the adsorption portion of the rear core and the clamper to guide the flocking tape; And it is fixed to the inner surface of the tape guide block, and a guide hole for guiding the flocking tape may be formed on the cross section.

In addition, the locator and the clamper protrude from the inner surface corresponding to the tape guide block to regulate the flocking tape, and guide rods for guiding the tape guide block may be formed, respectively.

In addition, the tape supply unit is installed on the outer surface of the rail and may further include an entry hole block in which an entry hole through which the flocking tape enters is formed on the cross section.

In an embodiment of the present invention, prior to molding the connecting strip connected to the extrusion strip, flocking tape is automatically supplied to the adsorption section formed in the rear core on the lower die, and in the process of injection molding the connecting strip, the flocking tape is heated to the connecting strip. It can be molded by fusing it together into one piece.

In addition, the flocking tape supplied from the roll feeder is previously adsorbed to the tape seating surface of the suction part formed in the rear core according to the clamping operation of the tape supply unit, and is flocked around the tape seating surface by the cutting core that operates together with the upper type unit. One side of the tape can be cut so that the flocking tape can be automatically supplied into the mold.

Accordingly, it is possible to improve the problems of quality deterioration such as non-uniform attachment position and lifting or peeling of the flocking tape, which occurred when workers manually attached the flocking tape to the connecting strip that connects the extruded strips.

In addition, in order to increase the adhesive strength of the flocking tape attached to the conventional connecting strip, the heat drying process that was performed after attaching the flocking tape can be eliminated. By eliminating the heat drying process, it is possible to eliminate the heat drying process due to changes in the physical properties of the connecting strip. It can solve the problem of micro-deformation.

In addition, the effects that can be obtained or expected due to the embodiments of the present invention will be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects expected according to embodiments of the present invention will be disclosed in the detailed description to be described later.

1 is a side view of a typical vehicle door glass run.
Figure 2 is an overall perspective view of a mold apparatus for forming a door glass run according to an embodiment of the present invention.
Figure 3 is a front exploded perspective view of a mold device for forming a door glass run according to an embodiment of the present invention.
Figure 4 is a rear exploded perspective view of a mold device for forming a door glass run according to an embodiment of the present invention.
Figure 5 is a perspective view of a rear core and a cutting core applied to a mold device for forming a door glass run according to an embodiment of the present invention.
Figure 6 is an exploded perspective view of a tape supply unit applied to a mold device for forming a door glass run according to an embodiment of the present invention.
7 to 9 are step-by-step molding process diagrams of a mold device for forming a door glass run according to an embodiment of the present invention.

Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts that are not relevant to the description will be omitted.

Figure 1 is a side view of a general vehicle door glass run, Figure 2 is an overall perspective view of a mold device for forming a door glass run according to an embodiment of the present invention, and Figure 3 is a mold for forming a door glass run according to an embodiment of the present invention. It is a front exploded perspective view of the device, and Figure 4 is a rear exploded perspective view of the mold device for forming door glass runs according to an embodiment of the present invention.

Meanwhile, the mold device for forming a door glass run according to an embodiment of the present invention will be described by defining the lower left side of the drawing as the front and the upper right side of the drawing as the rear, as shown in FIG. 2.

Referring to Figures 1 and 2, the door glass run (GR) formed by the mold apparatus (1) for forming the door glass run according to an embodiment of the present invention is formed by the extrusion strip (ST1) by the connecting strip (ST2). It is connected and installed on the door frame to guide the opening and closing operation of the door glass.

The mold device 1 for door glass run molding according to an embodiment of the present invention has a connection strip ST2 injection-molded in the mold connected to a separately installed extrusion strip ST1 and automatically supplied flocking tape (FT). ) is a mold device for integral molding.

This mold device 1 for forming a door glass run includes a lower mold unit 10, a core unit 20, an upper mold unit 30, and a tape supply unit 40.

Referring to Figures 3 and 4, first, the lower mold unit 10 is composed of a lower plate 11, a support die 12, a lower mold 13, a lower mold 14, and a raising and lowering cylinder 15.

The lower plate 11 is formed of a square steel plate and is fixedly installed on a square table 3 provided in the work process.

The support die 12 is provided in the shape of a square block and is fixedly installed on the upper surface of the lower plate 11.

The lower die 13 is made of a square steel plate and is placed on the upper part of the support die 12 to be able to move up and down, and a central hole H is formed in the center of the lower die 13.

The lower die 14 is installed in the center of the support die 12 through the central hole H on the lower die 13.

Here, the lower mold 14 is fixed to the support die 12 in a form that is aligned and inserted into the central hole (H) of the lower mold 13, and has a molding surface (FF) forming a molding portion (FP) on the upper surface. This is formed.

In addition, the raising and lowering cylinders 15 are installed on both sides between the lower plate 11 and the lower die 13.

At this time, the raising and lowering cylinder 15 is configured to raise and lower the lower die 13 with respect to the support die 12.

Referring to Figures 3 and 4, the core unit 20 is composed of four core molds consisting of a front lower core 21, a front upper core 22, a rear core 23, and a cutting core 24. , forming a molding portion (FP) inside together with the molding surface (FF) of the lower mold (14).

The front lower core 21 is fixed on the lower die 13 corresponding to the front of the lower die 14.

The front lower core 21 has a strip installation end 21a and a forming part FP to pre-install an extruded strip ST1 to be integrally molded with the connecting strip ST2 on one rear side corresponding to the rear core 23. The molding surface FF forming is formed integrally.

The front upper core 22 is installed to be movable in the forward and backward directions with respect to the upper surface of the front lower core 21.

The front upper core 22 has a forming surface FF forming a forming part FP on one surface corresponding to the cutting core 24.

Here, the front lower core 21 is dug in the front-back direction on both sides of the upper surface to form a first guide groove 25, and the front upper core 22 moves forward and backward along the first guide groove 25 on both sides of the lower surface. A protruding first guide end 26 is formed to be guided in this direction.

The rear core 23 is installed to be movable in the forward and backward directions on the lower die 13 corresponding to the rear of the lower die 14.

Figure 5 is a perspective view of a rear core and a cutting core applied to a mold device for forming a door glass run according to an embodiment of the present invention.

Referring to FIG. 5 (A), the rear core 23 forms a tape seating surface (TF) on one side of the central portion corresponding to the front lower core 21, and a plurality of air holes (TF) formed on the tape seating surface (TF) An adsorption unit 27 is formed for vacuum adsorption of the flocking tape 50 through AH).

That is, the adsorption unit 27 has a plurality of air holes (AH) connected to the vacuum pipe line (VL) on one side inside the rear core 23 formed along the inner circumference of the tape seating surface (TF) to adsorb. The outer surface of the flocking tape 50 is placed so that it is adsorbed. At this time, the adsorption unit 27 has a locking protrusion 27a formed on the lower side along the outer side of the tape seating surface TF and on the opposite side of the supply direction of the flocking tape 50, so that the flocking tape 50 is attached to the adsorption unit 27. ), it supports and guides the flocking tape (FT) during the supply process to ensure that the flocking tape (FT) is adsorbed at the correct adsorption position.

Here, the vacuum pipe line (VL) is connected to a vacuum pump (not shown) that creates a vacuum, and forms vacuum pressure through the vacuum valve (VV) during the process.

The plurality of air holes (AH) are composed of through holes formed by penetrating the tape seating surface (TF), may be formed at regular intervals along the inner circumference of the tape seating surface (TF), and are fine through holes with a diameter of less than 1 mm. can be formed.

However, in the embodiment of the present invention, the air hole (AH) is shown as an example in which the air hole (AH) is formed as a fine through hole with a diameter of less than 1 mm, but it is not necessarily limited to this, and the adhesive force of the flocking tape (FT) can be maintained at a level. The diameter and number can be adjusted.

And the rear core 23 is installed to be movable in the forward and backward directions with respect to the lower die 13. At this time, the lower die 13 is dug in the forward and backward directions on both sides of the upper surface corresponding to the rear core 23. Two guide grooves 28 are formed, and second guide ends 29 are formed on both sides of the lower surface of the rear core 23 to protrude to be guided forward and backward along the second guide grooves 28.

And the cutting core 24 is installed in the upper mold unit 30 corresponding to the upper part of the rear core 23, and forms the forming part FP on one surface corresponding to the front upper core 22. A forming surface (FP) is formed.

Referring to FIG. 5 (B), the cutting core 24 cuts the outside of the flocking tape 50 adsorbed on the adsorption portion 27 with the tape seating surface TF of the rear core 23 as a boundary. A cutting blade (C1) and a punching blade (C2) are formed for punching.

The cutting blade (C1) is formed to completely cut the flocking tape (50) in a straight line corresponding to the outside of the tape seating surface (TF), and the punching blade (C2) is formed at the entry direction boundary (TFA) of the tape seating surface (TF). ) is formed to punch the flocking tape 50 into a certain shape along the line.

Here, the cutting blade C1 completely cuts one side of the flocking tape 50 adsorbed on the adsorption portion 27 while the cutting core 24 is seated on the rear core 23 when the mold is joined. The punching blade (C2) is in a state where the flocking tape (50) adsorbed on the adsorption portion (27) along the entry direction boundary (TFA) of the tape seat surface (TF) is not completely cut, and after the forming process, the worker Punch it enough to easily remove it.

3 and 4, the upper mold unit 30 is provided with an upper plate 31 corresponding to the upper part of the core unit 20, and the upper mold 33 is installed at the lower part of the upper plate 31. It comes true.

The upper mold 33 has a cutting core 24 installed at the bottom to operate together with the cutting core 24, and a material injection port for injecting material into one side of the central portion of the upper mold 33 in response to the molding portion FP. (35) is formed.

This upper mold unit 30 is joined with the lower mold unit 10 with the core unit 20 interposed thereto to achieve injection molding of the connection strip ST2.

Here, an internal injection hole 35a is formed in the front lower core 21 and the front upper core 22 in response to the material injection hole 35 on the upper mold 33, so that the material is injected into the molding portion FP. Make it possible.

That is, the material injection port 35 and the internal injection port 35a have the core unit 20 in between, and the upper unit 30 is joined to the lower unit 10, and a high-temperature rubber material is injected. It is configured to injection mold a connection strip (ST2) connected to the extrusion strip (ST1).

And between the upper die 33 and the front lower core 21, front upper core 22, rear core 23, and cutting core 24 of the core unit 20, a cam guide using a cam and a cam surface is provided. The means are constructed.

Referring to FIGS. 3 and 4, the cam guide means is installed downwardly on both front and rear sides of the upper mold 33, and a front cam 61 and a rear cam 63 are installed.

In addition, a front cam surface 65 consisting of an inclined surface is formed on both front sides of the front lower core 21 and the front upper core 22 in response to the front cam 61, so that the front cam 61 acts. do.

A cam hole 67 made of a through hole with an inclined surface is formed on one side of the rear core 23 in response to the rear cam 63, so that the rear cam 63 acts.

In addition, a rear cam surface 69 formed as an inclined surface is formed on one rear side of the cutting core 24 in response to the rear cam 63, and the rear cam 63 acts.

This cam guide means is used in the process of joining the upper unit 30 to the lower unit 10, so that the front cam 61 and the rear cam 63 are connected to each front cam surface 65 and the cam hole of the core unit 20. (67), the cam operates against the rear cam surface (69).

Accordingly, the front lower core 21, front upper core 22, rear core 23, and cutting core 24 of the core unit 20 are each positioned at the forming position relative to the lower mold 14 and fixed. do.

Referring to Figures 3 and 4, the tape supply unit 40 is configured on the lower die 13 corresponding to one side of the lower die unit 10.

In this tape supply unit 40, the clamper 43, which secures the flocking tape 50 on the locator 42 by the operation of the clamping cylinder 41, moves the rail 45 by the operation of the forward and backward cylinder 44. While moving along, the flocking tape 50 is automatically supplied to the adsorption portion 27 of the rear core 23.

Figure 6 is an exploded perspective view of a tape supply unit applied to a mold device for forming a door glass run according to an embodiment of the present invention.

Referring to Figure 6 (A) (B), the tape supply unit includes a rail 45, a locator 42, a clamper 43, a clamping cylinder 41, and a forward and backward cylinder 44.

The rail 45 is installed in the width direction on one side of the lower die 13, corresponding to one side of the rear core 23.

The locator 42 is movably installed on the rail 45 through a slider 45a.

The clamper 43 is configured to clamp the flocking tape 50 together with the locator 42.

The clamping cylinder 41 is fixed to the locator 42 and is configured to operate the clamper 43 with respect to the locator 42.

The forward and backward cylinder 44 is installed on the lower die 13 adjacent to the rail 45 through a cylinder bracket 44a.

That is, in the forward and backward cylinder 44, the tip of the operating rod 44b is connected to one side of the locator 42 through the rod bracket 42a, and the locator 42, the clamper 43, and the clamping cylinder (41) is configured to supply the flocking tape (50) to the adsorption portion (27) of the rear core (23) while moving forward and backward along the rail (45) in a constant width direction.

And the tape supply unit 40 includes a tape guide block 46 installed on the lower die 13 between the suction part 27 of the rear core 23 and the clamper 43, and the flocking tape 50 ) is configured to guide.

In addition, the tape supply unit 40 includes a guide hole block 47 fixed to the inner surface of the tape guide block 46, and this guide hole block 47 guides the flocking tape 50 on its cross-section. A guide hole 47a is formed.

Meanwhile, the locator 42 and the clamper 43 are each formed with a guide rod 48 protruding from the inner surface corresponding to the tape guide block 46, and each guide rod 48 is connected to the flocking tape 50. ) is guided into the inside of the tape guide block 26 in a state in which it is controlled from both sides.

At this time, each guide rod 48 has a surface corresponding to the flocking tape 50 so as to regulate both sides of the flocking tape 50 without deformation, and the tape guide block 26 together with the flocking tape 50 It moves while being inserted into the inside of .

In addition, the tape supply unit 40 includes an entry hole block 49 installed on the outer surface of the rail 45, and this entry hole block 49 has an entry hole block 49 through which the flocking tape 50 enters. A hole 49a is formed.

Here, the guide hole 47a and the entry hole 49a may be formed along the cross-sectional shape of the flocking tape 50.

7 to 9 are step-by-step molding process diagrams of a mold device for forming a door glass run according to an embodiment of the present invention.

Hereinafter, a step-by-step molding process of the mold device 1 for forming a door glass run according to an embodiment of the present invention will be described with reference to FIGS. 7 to 9.

Referring to Figure 7 (S1), first, with the upper type unit 30 raised, the clamping cylinder 41 of the tape supply unit 40 operates to clamp the flocking tape 50 on the locator 42. 43) and fix it.

At this time, the front end of the flocking tape 50 is simultaneously regulated by the guide rod 48, which is formed on the locator 42 and the clamper 43, respectively.

Next, referring to (S2) of FIG. 7, when the forward and backward cylinder 44 of the tape supply unit 40 moves forward, the front end of the flocking tape 50 is between the locator 42 and the clamper 43. It moves in a fixed state and is supplied to the adsorption unit 27 of the rear core 23.

At this time, the tip of the flocking tape 50 is guided to the adsorption unit 27 by the tape guide block 46 and the guide hole block 47.

At this time, the vacuum valve (VV) is opened to suck air through the vacuum pipe (VL) through the air hole (AH) formed in the adsorption portion (27) on the rear core (23) while adsorbing the outer surface of the flocking tape (50). The state is maintained, and at the same time, the connection strip (ST2) to be injection molded and the extrusion strip (ST1) to be integrally molded are inserted and assembled into the strip insertion end (21a) of the front lower core (21).

Thereafter, referring to (S3) of FIG. 8, the upper type unit 30 is lowered and joined with the lower type unit 10 with the core unit 20 interposed therebetween.

At this time, by the operation of the clamping cylinder 41, the clamper 43 rises with respect to the locator 42 to release the restricted state of the flocking tape 50, and then the forward and backward cylinder 44 operates backward. The locator 42 and clamper 43 move to their initial positions.

In addition, by combining the upper mold unit 30 and the lower mold unit 10, the cutting core 24 operates on the rear core 23 inside the mold to cut and punch one side of the flocking tape 50.

That is, the cutting blade C1 of the cutting core 24 completely cuts the flocking tape 50 in a straight line corresponding to the outside of the tape seating surface TF, and the punching blade C2 cuts the tape seating surface TF. The flocking tape 50 is punched in a certain shape along the entry direction border (TFA).

At this time, the cutting blade (C1) completely cuts one side of the flocking tape (50) adsorbed on the suction part (27) while the cutting core (24) is seated on the rear core (23), and the punching blade (C2) The flocking tape 50 adsorbed on the adsorption portion 27 along the entry direction border (TFA) of the silver tape seating surface (TF) is not completely cut, but is cut to the extent that the worker can easily remove it after the forming process. Punch.

Next, referring to (S4) of FIG. 8, the clamper 43 is lowered with respect to the locator 42 by the operation of the clamping cylinder 41 to regulate the distal end of the flocking tape 50 again.

In this state, a high-temperature rubber material is injected into the forming part FP through the material injection port 35 on the upper mold unit 30, and the rubber material is waited for a certain period of time until the rubber material hardens.

Referring to FIG. 9 (S5), as described above, the material is injected and after a certain period of time, the upper mold unit 30 is raised and released from the lower mold unit 10.

At the same time, the raising and lowering cylinders 15 on both sides of the lower plate 11 are driven forward to raise the lower die 13, and the connection strip ST2 is integrally injection molded from the lower die 14 to the extrusion strip ST1. Separate the strip product.

At this time, the front upper core 22 is slid forward relative to the front lower core 21, and the rear core 23 is slid rearward relative to the lower die 13 to be separated from the strip product. This makes the next extraction possible.

Next, referring to (S6) of FIG. 9, after taking out the strip product in which the extrusion strip (ST1) and the connection strip (ST2) are integrally injection-molded, the both raising and lowering cylinders (15) are driven backward to lower the lower die. (13) is lowered, and the front upper core 22 and rear core 23 are moved to their initial positions to proceed with the next process.

Therefore, the mold device 1 for door glass run molding according to an embodiment of the present invention is automatic in the process of injection molding the connecting strip (ST2), which is integrally connected to the extrusion strip (ST1), by injecting a high-temperature rubber material into the mold. The flocking tape 50 supplied is molded into a state in which it is integrally fused to the connection strip ST2 by heat fusion.

That is, the mold device 1 for forming a door glass run according to an embodiment of the present invention includes an adsorption portion 27 formed in the center of the rear core 23 before molding the connecting strip ST2 corresponding to the corner portion of the door frame. The flocking tape 50, which is automatically supplied, is first adsorbed and fixed, and in this state, in the process of injection molding the connection strip (ST2) integrally with the extrusion strip (ST1), the molding part is injected through the material injection port (35). The flocking tape 50 is integrally fused to the connecting strip ST2 by heat fusion with the high-temperature rubber material injected into (FP) and formed.

In addition, the mold device 1 for forming a door glass run according to an embodiment of the present invention connects the flocking tape 50 supplied from the roll feeder 5 to the rear core 23 according to the clamping operation of the tape supply unit 40. The flocking tape 50 is pre-adsorbed to the tape seating surface TF on the adsorption portion 27 formed in By cutting one side, the flocking tape 50 can be automatically supplied into the mold.

Accordingly, it is possible to improve the problem of non-uniformity of the attachment position that occurred when the worker manually attached the flocking tape 50 to the connection strip ST2, and the quality deterioration problem of the flocking tape 50 being lifted or peeled off.

In addition, a heat drying process to increase the adhesive strength of the flocking tape 50 attached to the connection strip ST2 can be eliminated, thereby solving problems such as fine deformation of the connection strip ST2 due to the heat drying process.

In addition, compared to the manual method for attaching the flocking tape 50, it has the effect of reducing costs by saving manufacturing man-hours and time. It also improves the quality of finished vehicles by ensuring product accuracy, and at the same time improves durability and slip properties. Assembly joints can be improved.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art can make various modifications and modifications to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You can change it.

1: Mold device for door glass run forming
3: table
5: Roll feeder
GR: Class Run
ST1: Extruded Strip
ST2: Connection strip
10: Lower unit
11: Bottom plate
12: Support die
13: Lower die
14: Hahyung
15: Raising and lowering cylinder
H: central hall
FP: forming part
FF: forming surface
20: Core unit
21: Front lower core
21a: Strip installation end
22: Front upper core
23: rear core
24: cutting core
25: 1st information home
26: 1st guide group
27: Suction part
27a: Stopper
28: Second information home
29: 2nd guide group
TF: Tape bearing surface
AH: air hole
VV: Vacuum valve
VL: vacuum tube
C1: cutting blade
C2: Punching blade
TFA: Entry direction boundary of the tape seating surface (TF)
30: upper type unit
31: top plate
33: hieroglyph
35: Material injection port
35a: internal inlet
40: Tape supply unit
41: clamping cylinder
42: Locator
42a: Rod bracket
43: Clamper
44: Forward and backward cylinder
44a: cylinder bracket
44b: operating rod
45: rail
45a: slider
46: Tape guide block
47: Guide hole block
47a: Information hall
48: Guide rod
49: Entry hole block
49a: Entry hole
50: flocking tape
61: front cam
63: rear cam
65: Front cam face
67: cam hole
69: Rear cam face

Claims (28)

In the mold device for door glass run forming,
A lower die unit consisting of a support die installed on a lower plate on a table, a lower die disposed to be able to be raised and lowered on an upper part of the support die, and a lower die installed in the support die through a central hole of the lower die.
A front lower core installed on the lower die, a front upper core installed on the front lower core, and a flocking tape installed on a side opposite to the front lower core on the lower die, and on one side corresponding to the front lower core. A core unit consisting of a rear core having an adsorption portion for adsorbing and a cutting core disposed on an upper part of the rear core to cut one side of the flocking tape, and forming a molded portion together with the lower mold;
It consists of an upper die installed at the lower part of the upper plate corresponding to the upper part of the core unit and operating together with the cutting core, and a material injection port for injecting material into one side of the upper die is formed corresponding to the molding part, and the core unit an upper unit joined with the lower unit with an interposition; and
The clamper, which is located on one side of the lower mold unit and secures the flocking tape on the locator by the operation of the clamping cylinder, moves along the rail by the operation of the forward and backward cylinder and automatically supplies the flocking tape to the adsorption portion of the rear core. A tape supply unit that does;
A mold device for forming a door glass run comprising a. According to paragraph 1,
The lower unit is
A lower plate installed on the table;
a support die installed on the lower plate;
a lower die disposed on the upper part of the support die and having a central hole formed in the center;
A lower mold installed on the support die through the central hole and having a molding surface forming the molding portion on the upper surface; and
Elevating and lowering cylinders installed on both sides between the lower plate and the lower die to raise and lower the lower die with respect to the support die;
A mold device for forming a door glass run comprising a. According to paragraph 1,
The core unit is
a front lower core that is fixedly installed on the lower mold die corresponding to the front of the lower mold and is integrally formed with a strip installation end that installs an extrusion strip on one side corresponding to the rear core and a molding surface that forms the molding portion;
a front upper core installed to be movable in a forward and backward direction on the front lower core, and having a molding surface forming the molding part on one surface corresponding to the cutting core;
A rear core installed to be movable in the forward and backward directions on the lower mold die corresponding to the rear of the lower mold, and having an adsorption portion for vacuum suction of the flocking tape through a plurality of air holes formed on the tape seat surface. and
It is installed on the upper mold of the upper mold unit corresponding to the upper part of the rear core, and a molding surface forming the molding portion is formed on one surface corresponding to the front upper core, and flocking is adsorbed to the suction portion with the tape seating surface as a boundary. a cutting core that cuts the outside of the tape;
A mold device for forming a door glass run comprising a. According to paragraph 3,
The adsorption unit
Inside the rear core, a plurality of air holes connected to a vacuum pipe on one side are formed along the circumference of the tape seating surface, and a locking protrusion is formed on the lower side along the outer side of the tape seating surface and on the opposite side of the supply direction of the flocking tape. A mold device for door glass run forming. According to paragraph 3,
The cutting core is
a cutting blade formed to completely cut the flocking tape corresponding to an outside of the tape seating surface; and
a punching blade formed to punch the flocking tape along an entry direction boundary of the tape seating surface;
A mold device for forming a door glass run comprising a. According to paragraph 3,
The front lower core has first guide grooves formed in the front and rear directions on both sides of the upper surface,
The front upper core is a mold device for door glass run molding in which first guide ends are formed on both sides of the lower surface and are guided in the front and rear direction along the first guide groove. According to paragraph 3,
The lower die has second guide grooves formed in the front-back direction on both sides of the upper surface corresponding to the rear core,
A mold device for door glass run molding in which second guide ends are formed on both sides of the rear core to be guided forward and backward along the second guide groove. According to paragraph 3,
The front lower core and the front upper core are
A mold device for door glass run molding in which an internal injection port is formed corresponding to the material injection port on the upper shape. According to paragraph 1,
A mold device for door glass run molding, wherein a cam guide means using a cam and a cam surface is provided between the upper mold and the front lower core, front upper core, rear core, and cutting core of the core unit. According to clause 9,
The cam guide means is
a front cam and a rear cam installed downwardly on both front and rear sides of the upper mold, respectively;
a front cam surface formed as an inclined surface on both front sides of the front lower core and the front upper core, on which the front cam acts;
a cam hole formed as a through hole with an inclined surface on one side of the rear core through which the rear cam acts; and
a rear cam surface formed as an inclined surface on one rear side of the cutting core on which the rear cam acts;
A mold device for forming a door glass run comprising a. According to paragraph 1,
The tape supply unit is
A rail installed in the width direction on one side of the lower die corresponding to one side of the rear core;
a locator movably installed on the rail through a slider;
a clamper clamping the flocking tape together with the locator;
a clamping cylinder fixed to the locator to operate the clamper; and
It is installed adjacent to the rail through a cylinder bracket on the lower die, and the tip of the operating rod is connected to one side of the locator through the rod bracket to move the locator, the clamper, and the clamping cylinder along the rail at a certain width. a forward and backward cylinder that supplies the flocking tape to the adsorption portion of the rear core while moving forward;
A mold device for forming a door glass run comprising a. According to clause 11,
The tape supply unit is
a tape guide block installed on the lower die between the adsorption portion of the rear core and the clamper to guide the flocking tape; and
a guide hole block fixed to an inner surface of the tape guide block and having a guide hole for guiding the flocking tape formed on its cross section;
A mold device for forming a door glass run, further comprising: According to clause 12,
The locator and the clamper are
A mold device for door glass run molding, wherein guide rods are formed to guide the inside of the tape guide block, respectively, in a state in which the flocking tape is protruded from the inner surface in response to the tape guide block. According to clause 11,
The tape supply unit is
The mold device for forming a door glass run further includes an entry hole block installed on the outer surface of the rail and having an entry hole through which the flocking tape enters on a cross section. In the mold device for door glass run forming,
A lower plate installed on a table, a support die installed on the lower plate, a lower die formed with a central hole penetrating in the center and disposed on an upper part of the support die, and a molding surface forming a molding portion on the upper surface are formed in the center. A lower mold unit consisting of a lower mold installed on the support die through a hole and a raising and lowering cylinder installed on both sides between the lower plate and the lower mold die to raise and lower the lower mold with respect to the support die;
A strip installation end for installing an extrusion strip on one side and a molding surface for forming the molding part are integrally formed, and a front lower core is fixedly installed on the lower mold die corresponding to the front of the lower mold, and forming the molding portion on one side. A front upper core is formed with a surface and is installed to be movable in the front and rear directions on the front lower core, and an adsorption portion for vacuum adsorbing flocking tape is formed on one surface corresponding to the front lower core, corresponding to the rear of the lower mold. A rear core is installed to be movable in the forward and backward directions on the lower die, and a molding surface forming the molding part is formed on one surface corresponding to the front upper core, and operates on the upper part of the rear core to automatically supply the suction part to the suction part. A core unit consisting of a cutting core that cuts and punches the outside of the adsorbed flocking tape; and
It consists of an upper die installed at the lower part of the upper plate corresponding to the upper part of the core unit and operating together with the cutting core, and a material injection port for injecting material into one side of the upper die is formed corresponding to the molding part, and the core unit an upper unit joined with the lower unit with an interposition;
A mold device for forming a door glass run comprising a. According to clause 15,
The strip installation stage is
A mold device for forming a door glass run formed on one side of the front lower core corresponding to the rear core. According to clause 15,
The adsorption unit
A tape seating surface on which the flocking tape is seated is formed on one surface of the rear core corresponding to the front lower core, and a plurality of air holes connected to a vacuum pipe on one side are formed inside the rear core along the circumference of the tape seating surface. A mold device for forming a door glass run, wherein a locking protrusion is formed along the outer side of the tape seating surface and on a side opposite to the supply direction of the flocking tape. According to clause 17,
The cutting core is
It is installed on the upper mold of the upper mold unit corresponding to the upper part of the rear core,
A mold device for forming a door glass run, including a cutting blade formed to completely cut the outer side of the tape seating surface with respect to the flocking tape on the adsorption unit, and a punching blade formed to punch along an entry direction boundary of the tape seating surface. According to clause 15,
The front lower core has first guide grooves formed in the front and rear directions on both sides of the upper surface,
The front upper core is a mold device for door glass run molding in which first guide ends are formed on both sides of the lower surface and are guided in the front and rear direction along the first guide groove. According to clause 15,
The lower die has second guide grooves formed in the front-back direction on both sides of the upper surface corresponding to the rear core,
A mold device for door glass run molding in which second guide ends are formed on both sides of the rear core to be guided forward and backward along the second guide groove. According to clause 15,
The front lower core and the front upper core are
A mold device for door glass run molding in which an internal injection port is formed corresponding to the material injection port on the upper shape. According to clause 15,
A mold device for door glass run molding, wherein a cam guide means using a cam and a cam surface is provided between the upper mold and the front lower core, front upper core, rear core, and cutting core of the core unit. According to clause 22,
The cam guide means is
a front cam and a rear cam installed downwardly on both front and rear sides of the upper mold, respectively;
a front cam surface formed as an inclined surface on both front sides of the front lower core and the front upper core, on which the front cam acts;
a cam hole formed as a through hole with an inclined surface on one side of the rear core through which the rear cam acts; and
a rear cam surface formed as an inclined surface on one rear side of the cutting core on which the rear cam acts;
A mold device for forming a door glass run comprising a. According to clause 15,
The mold device for door glass run forming is
A clamper configured on one side of the lower mold unit and fixing the flocking tape on the locator by the operation of the clamping cylinder moves in the width direction along the rail by the operation of the forward and backward cylinder and applies the flocking tape to the adsorption portion of the rear core. A mold device for door glass run molding that further includes a tape supply unit that automatically supplies the tape. According to clause 24,
The tape supply unit is
A rail installed in the width direction on one side of the lower die corresponding to one side of the rear core;
a locator movably installed on the rail through a slider;
a clamper clamping the flocking tape together with the locator;
a clamping cylinder fixed to the locator to operate the clamper; and
It is installed adjacent to the rail through a cylinder bracket on the lower die, and the tip of the operating rod is connected to one side of the locator through the rod bracket to move the locator, the clamper, and the clamping cylinder along the rail at a certain width. a forward and backward cylinder that supplies the flocking tape to the adsorption portion of the rear core while moving forward;
A mold device for forming a door glass run comprising a. According to clause 25,
The tape supply unit is
a tape guide block installed on the lower die between the adsorption portion of the rear core and the clamper to guide the flocking tape; and
a guide hole block fixed to an inner surface of the tape guide block and having a guide hole for guiding the flocking tape formed on its cross section;
A mold device for forming a door glass run, further comprising: According to clause 26,
The locator and the clamper are
A mold device for door glass run molding, wherein guide rods are formed to guide the inside of the tape guide block, respectively, in a state in which the flocking tape is protruded from the inner surface in response to the tape guide block. According to clause 25,
The tape supply unit is
The mold device for forming a door glass run further includes an entry hole block installed on the outer surface of the rail and having an entry hole through which the flocking tape enters on a cross section.

Images