KR200228140Y1 - simultaneous manufacturing machine for heat-welding of door trim and bending of weather strip - Google Patents

Abstract

The present invention relates to a car door trim heat fusion and weather strip bending simultaneous molding machine, conventionally the heat fusion of the door trim and the bending of the weather strip is made in a separate machine, which requires a lot of work and takes a long time and scratches of the door trim The problem of high incidence was solved. To this end, the automobile door trim thermal fusion and weather strip bending simultaneous molding machine according to the present invention is capable of horizontally transporting by the air cylinder 13 and supports the door trim 1 to which the weather strip 3 is coupled. A jig 11 configured to fit the shape of the trim 1; When the door trim 1 placed on the jig 11 comes to the working position according to the horizontal movement of the jig 11, the door trim 1 is lowered by the air cylinder 37 so as to heat-bond the engaging portion of the door trim 1. A heat welding machine in which a plurality of heat welding tools 33 are arranged; A plurality of bending tools 53 are moved to the lower part of the weather strip 3 by an air cylinder 59 to bend the coupling bar 3c of the weather strip 3 while the heat welding device is heat-sealed. It characterized in that it comprises a bending machine for firmly fixing the strip (3) to the door trim (1).

Description

Simultaneous manufacturing machine for heat-welding of door trim and bending of weather strip

The present invention relates to a thermal fusion of a door trim of a car door and a bending of a weather strip at the same time by thermally sealing a door trim of a vehicle and bending a weather strip coupled to the door trim. More particularly, the present invention relates to a simultaneous molding machine in which heat fusion and bending are simultaneously performed in one apparatus.

The door trim of a car is molded in various shapes according to the car model. Therefore, when manufacturing door trims for each model, the entire door trim may be produced by injection molding at one time, or the door trim may be divided into two or three parts and injection molded, and then the one or more door trims may be heat-sealed. In some cases.

A heat fusion machine is used to heat weld each part of the door trim. The heat fusion machine is a device in which a fusion tool with a cartridge heater is built therein to melt and join each joining portion of two base materials at a time.

On the other hand, a weather strip is attached to one side of the door trim. The weather strip is a part that rubs off the side window of the vehicle to remove foreign matters from the window to which foreign matter such as rainwater or dust is attached. 1 is a perspective view of the weather strip coupled to the door trim as shown in FIG. 1, and FIG. 1 is a rear view of the door trim.

Referring to FIG. 1, an elongated bar-shaped weather strip 3 is coupled to one side of a door trim 1 that is formed by combining two parts. The door trim 1 has a predetermined shape to accommodate a speaker, a power window component, and the like, and is difficult to be integrally formed into two parts (1, 1 '), and the two parts A plurality of bosses 5 are formed in the engaging portion 1a of the. A plurality of bosses 5 are formed along the coupling portion 1a as traces of the heat welding machine fusion bonding the partial portions of the door trim 1.

And the weather strip (3) is coupled from the top along the edge of the door trim (1) to the rear side of the door trim (1). 2 shows the weather strip 3 in detail, and FIG. 2 shows the weather strip 3 in a side view.

1 and 2, the weather strip 3 is a soft material and is formed in an arc to form a brush 3a, and the brush 3a is positioned below the brush 3a to the door trim 1. It consists of a fixing bar (3b) for fixing, and a coupling bar (3c) consisting of a plurality of vertically at regular intervals to the fixing bar (3b).

The door trim 1 has a coupling groove configured to allow the coupling bar 3c to be inserted, and then inserts the coupling bar 3c of the weather strip 3 into the coupling groove of the door trim 1, and then about 90 °. By bending at °, the weather strip 3 is firmly coupled to the door trim 1. 3 illustrates a state in which the coupling bar 3c of the weather strip 3 of FIG. 2 is bent.

Referring to Fig. 3, the bending direction is different from both sides, i.e., the coupling bar 3c formed on the left side with the axis of the fixed bar 3b as an axis bent at 90 ° clockwise and the coupling bar 3c configured on the right side. Bends 90 ° counterclockwise. Accordingly, the weather strip 3 is firmly fixed to the door trim 1 against external forces acting in any direction in the up, down, left, and right directions. When the heat fusion of the door trim 1 is completed, the weather strip 3 is coupled to the door trim 1, and the bending of the coupling bar 3c of the weather strip 3 uses a weather strip bending machine. .

Conventionally, a heat sealer is used to thermally seal the door trim 1 and a weather strip bending machine configured separately from the heat sealer is used to bend the weather strip 3. That is, conventionally, the heat fusion welding machine and the weather strip bending machine are separately configured. Accordingly, the conventional door trim thermal welding and the weather strip bending method have two separate processes, a thermal welding process for thermally bonding the door trim 1 and a bending process for coupling the weather strip 3 to the door trim 1. Since the progress is sequentially performed by the device there is a problem that the productivity is low because the number of work. In addition, the conventional heat fusion and weather strip bending method of the door trim has a problem of occupying a lot of working space because it uses a heat welding machine and a bending machine, two devices.

In addition, since the door trim (1) is set to the heat fusion splicer and the heat fusion process is completed, the door trim (1) is unloaded from the heat fusion splicer to be loaded into the weather strip bending machine again and unloaded when the bending is completed. The fusion and bending method has a problem in that the door trim 1 is unloaded and easily scratched, thereby causing a high defect rate.

Since the front surface of the door trim 1, that is, the opposite side where the heat fusion occurs, is the surface seen by the consumer, even if a slight scratch occurs, it is defective. Therefore, in order to prevent scratching, the number of loading and unloading should be reduced as much as possible during the molding process. Since the conventional heat welding machine and the weather strip bending machine are configured separately, the door trim 1 needs to be loaded at least twice and unloaded twice.

Therefore, in order to solve the above problems, the present invention is a combination of heat fusion and weather strip of the door trim is made on the same machine to reduce the labor time and significantly reduce the scratch occurrence rate, while the heat strip is combined at the same time during the heat welding to achieve the work time It is an object of the present invention to provide a simultaneous molding machine for heat fusion of a car door trim and a weather strip bending that can be shortened.

1 is a perspective view showing an example of a door trim of a vehicle.

Figure 2 is a side view of the door trim of Figure 1;

3 is a view showing a bent weather strip of FIG.

Figure 4 is a front view of the door trim heat fusion and weather strip bending simultaneous molding machine according to an embodiment of the present invention is a view showing the center of the bending machine.

5 is a front view of a door trim thermal welding and a weather strip bending simultaneous molding machine according to an embodiment of the present invention, and FIG.

Figure 6 is a side view of the co-molding machine of Figure 4;

7 is a view showing a state in which the door trim is loaded on the simultaneous molding machine of FIG.

8 is a view showing a state in which the simultaneous molding machine of Figure 7 is performing a heat fusion and bending process.

9 is a view showing a state in which the heat fusion apparatus of FIG. 5 is lowered for heat fusion;

10 is a cross-sectional view of the heat welding tool of FIG.

11 is a side configuration diagram of a bending machine.

12 is a view showing a state in which a bending tool of the bending machine is rotated for bending.

Fig. 13 shows a state in which the bending machine is raised for bending.

<Explanation of symbols for main parts of the drawings>

1: door trim 3: weather strip

3c: weather strip coupling bar 11: jig

13: jig transfer cylinder 15: locking cylinder

17: rail 19: ejection cylinder

21: vacuum pad 33: heat welding tool

33a, 63: stripper 33b: forming tool

33c: cartridge heater 35: compression tool

37, 59: up-down cylinder 51: bending cylinder

53: bending tool 53a: pinion gear

53b: Clamp 55: Rack Shaft

55a: rack gear 61: pressure cylinder

In order to achieve the above object, the thermo-fusion molding of the door trim of the automobile door and the bending of the weather strip simultaneously according to the present invention, the shape of the door trim can be horizontally transported by an air cylinder and the door trim can be coupled to the weather strip. Jig configured to fit; A heat fusion device in which a plurality of heat fusion tools are arranged to be lowered by an air cylinder and thermally fused to the engaging portion of the door trim when the door trim placed on the jig comes to a working position according to the horizontal movement of the jig; And a bending machine for moving the plurality of bending tools to the lower part of the weather strip by an air cylinder to bend the coupling bar of the weather strip to fix the weather strip to the door trim while the heat welding device is heat-sealed. It is done.

Simultaneous thermal welding of automotive door trim and weather strip bending machine according to the present invention configured as described above significantly reduces the scratch occurrence rate of the door trim, and has the advantage of improving productivity by reducing the labor time and working time. And it has the advantage of taking up less work space.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the simultaneous molding of the thermal welding of the door trim and the bending of the weather strip according to the present invention. FIG. 4 is a front view showing the weather strip bending machine of the present simultaneous molding machine, and FIG. 5 is a front view showing the heat welding machine not shown in FIG. 6 is a left side view showing the side configuration of the simultaneous molding machine.

4, 5, and 6, the present simultaneous molding machine is largely configured to support and fix various devices, a bending machine configured in a horizontal direction on the front side of the frame 10, and the bending machine. Located at the rear end of the heat frame is fixed to the upper frame 10, and composed of a jig 11 protruding to the front. The bending machine is connected to two bending air cylinders 51 (hereinafter, abbreviated as air cylinders), which are arranged in a horizontal direction opposite to each other at both ends, and connected to the rack shaft 55 of the left cylinder of the bending cylinders 51. Four left bending tools 53 supported by the horizontal support plate 57 configured at the upper portion, and four connected to the rack shaft 55 of the right cylinder of the bending cylinders 51 and supported by the horizontal support plate 57. Two right bending tools 53, a first up-down cylinder 59 configured to extend vertically in the lower portion of each of the bending cylinders 51, and expandable and contractable up and down, and a door trim to prevent the weather strip from flowing during bending. It consists of a press cylinder 61 etc. which make it press. In addition, the heat welding machine is located at the top and has a slight angle in the vertical direction and is expandable / contractable, the second up-down cylinder 37 and two guide rods 31 formed on both sides of the second up-down cylinder 37. And a support plate 39 attached to a lower portion of the second up-down cylinder 37 and a lower portion of the guide rod 31 and formed to extend in a horizontal direction, and in a vertical direction at equal intervals at a lower portion of the support plate 39. The heat-sealing tool 33 and the pressing tool 35 and the like formed in the vertical direction in the center lower portion of the support plate 39.

In addition, the jig 11 is vacuum-adsorbed to the door cylinder configured in the vertical direction and adjacent to the take-out cylinder 19 and two configured take-out cylinder 19 in the vertical direction to unload the door trim Two vacuum pads 21 which are firmly fixed, and a safety sensor 23 for controlling the position of the jig 11 are constituted. In addition, a jig transfer cylinder 13 connected to the center lower portion of the jig 11 and elongated in the horizontal direction and on the lower portion of the jig 11 is formed on the frame 10 in a horizontal direction. A rail 17 for supporting and a locking cylinder 15, which is configured on the front surface of the frame 10 and is configured under the jig 11, to lock the jig 11 from flowing, are configured.

The jig 11 is configured to support a door trim to be thermally fused and bent, and the jig 11 is moved back and forth by the jig transfer cylinder 13 and moves along the rail 17 when moved. do. That is, when the jig transfer cylinder 13 expands, the jig 11 is pushed forward as shown in FIG. 6, and when the jig transfer cylinder 13 contracts, the jig 11 enters backward. Since the rail 17 is configured at both sides of the lower part of the jig 11, the jig 11 is supported on the rail 17 and can move forward or backward along the rail 17. In the initial state, that is, the heat fusion and bending process are not performed, the jig transfer cylinder 13 is expanded as shown in FIG. 6 to maintain the jig 11 being pushed forward.

Next, the vacuum pad 21 is configured to firmly fix the door trim on the jig 11 by vacuum sucking the front surface of the door trim loaded on the jig 11, and the door during heat fusion or bending. The door trim is firmly fixed on the jig 11 to prevent the trim from flowing.

In order to thermally fuse and bend the door trim, it is necessary to first load the door trim to be worked on the jig 11, and thus the door trim is loaded on the jig 11 of FIG. Referring to Fig. 7, the door trim 1 is placed on two vacuum pads 21 arranged vertically on the jig 11. When the door trim 1 is placed on the jig 11, it is placed so that the rear side faces upward and the front side faces downward.

Next, the ejection cylinder 19 is configured to unload the door trim 1 placed on the jig 11 as shown in FIG. 7, and the initial state of the ejection cylinder 19 is in a contracted state and the door trim When unloading (1), the ejection cylinder 19 is expanded to eject the door trim 1 upward. When the door trim 1 is taken out, the vacuum pad 21 does not perform an adsorption operation so that the door trim 1 is easily taken out.

Next, the jig transfer cylinder 13 is configured to transfer the door trim to the working position as the heat fusion and bending process starts, and is configured to be connected to the lower center of the jig 11 to transfer the jig 11. By doing so, the door trim is transferred to the working position. When the jig transfer cylinder 13 transfers the jig 11 to the working position, the jig transfer cylinder 13 contracts and the jig transfer cylinder 13 shows a contracted state. Referring to FIG. 8, when the jig transfer cylinder 13 contracts, the jig 11 is retracted to the rear, and thus, the jig transfer cylinder 13 is positioned below the heat fusion splicer and the bending machine. In the state as shown in FIG. 8, the heat fusion machine descends and the bending machine descends to perform the heat fusion process and the bending process.

Next, the locking cylinder 15 is configured to fix the jig 11 to a working position, and is configured at a lower portion of the locking groove below the jig 11. In the initial state, the locking cylinder 15 contracts and the locking bar is separated from the locking groove of the jig 11. When the locking jig 11 is locked, the locking cylinder 15 is expanded to the jig 11. Insert the locking bar into the locking groove of the.

Next, the second up-down cylinder 37 configured at the upper portion of the heat fusion tool 33 is configured to transfer the heat fusion tool 33 up and down, and the heat fusion tool 33 has an upper support plate ( 39 is fixed to the support plate 39 is connected to the lower portion of the second up-down cylinder 37, the heat fusion tool 33 is moved up and down in accordance with the expansion and contraction of the second up-down cylinder 37 It is possible. The initial state is a state in which the second up-down cylinder 37 contracts and the heat fusion tool 33 rises as shown in FIG. 5. In the state as shown in FIG. 5, when the door trim 1 is positioned at the work position by the operation of the jig transfer cylinder 13, the second up-down cylinder 37 expands to lower the heat welding tool 33 to thermally seal the door trim. Let's do it.

8 and 9 show that the second up-down cylinder 37 expands and the heat fusion tool 33 is lowered. 8 and 9, the jig 11 is positioned at the lower portion of the heat fusion tool 33 and the bending machine, that is, the working position according to the contraction of the jig transfer cylinder 13, and the second up-down cylinder 37 ) Is inflated and the heat welding tool 33 is in contact with the top of the door trim (1) placed on the jig (11) to be heat-sealed.

Next, the heat fusion tool 33 is configured to heat fusion the door trim 1 located at the working position, and a plurality of the heat fusion tools 33 are arranged along the heat fusion region. 10 illustrates the heat welding tool 33 in detail. Referring to FIG. 10, the heat fusion tool 33 has a stripper 33a which is configured at the bottom and presses the fusion portion of the door trim with the force of the spring, and is formed inside the stripper 33a and the fusion portion. Forming tool (33b) for transferring the heat to the boss shape in the form of a boss and inserted into the inside of the forming tool (33b) is supplied with electricity from the outside to generate heat and transfer the heat generated heat to the forming tool Cartridge heater 33c; A hollow case 33d for fixing the stripper 33a, the forming tool 33b, the cartridge heater 33c, and a locking nut 33e for supporting the case 33d on the outer support plate 39. It is composed.

When electricity is supplied to the cartridge heater 33c, the cartridge heater 33c generates heat. The heat generated is transferred to the forming tool 33b. Accordingly, when the fusion tool 33 contacts the fusion site of the door trim, the fusion site is melted. Thereby, the fusion | melting site | part of the door trim 1 which was separated into two parts melt | dissolves, and is integrally melt-bonded. In order to prevent the flow of the door trim 1 during heat fusion, the stripper 33a presses the circumference of the fusion part of the door trim 1 with the holding force of the spring. When the heat fusion is completed, the boss 5 as shown in FIG. 1 is formed, and the second up-down cylinder 37 contracts to raise the heat fusion tool 33 to return to the initial state as shown in FIG. 5.

Next, the pressing tool 35 formed under the second up-down cylinder 37 has the door trim 1 being jig 11 while the heat welding tool 33 descends to heat-bond the door trim 1. It is a structure for urging from the top so that it may not flow in a phase. As the second up-down cylinder 37 expands, the heat fusion tool 33 descends and at the same time the compression tool 35 descends to press the door trim 1 as shown in FIG. 8.

Next, the bending tool 53 is configured to bend the coupling bar 3c of the weather strip 3, and the side of the bending machine is illustrated in detail with respect to the bending tool 53.

Referring to FIG. 11, the bending tool 53 is a rack gear 55a connected to a rack shaft 55 of a bending cylinder 51 horizontally supported by a horizontal support plate 57 and the rack gear 55a. And a pinion gear 53a configured to be engaged with each other and a clamp 53b positioned inside the pinion gear 53a to bend the coupling bar 3c of the weather strip 3.

The bending cylinder 51 is configured to move the rack shaft 55 from side to side, and the clamp 53b at the final stage rotates by 90 ° according to the operation of the bending cylinder 51 to bend. Two bending cylinders 51 are formed on both left and right sides of the frame 10 so as to face each other, and the left bending cylinder 51 is connected to the left four bending tools 53 and the rack shaft 55, and The bending cylinder 51 is connected to the right four bending tools 53 and the rack shaft 55. The initial state of the bending cylinder 51 is in a contracted state. In this state, when the bending cylinder 51 expands, the rack shaft 55 moves left or right. When the bending cylinder 51 on the left side expands, the rack shaft 55 on the left side moves to the right side, and when the bending cylinder 51 on the right side expands, the rack shaft 55 on the right side moves to the left side. 12 shows an expanded state of the bending cylinder 51.

Referring to FIG. 12, when the bending cylinder 51 on the left side expands, the rack shaft 55 on the left side moves to the right side, and the clamp 53b of the bending tool 53 rotates 90 ° clockwise, and the bending side on the right side. When the cylinder 51 expands, the rack shaft 55 on the right side is moved to the left side, and the clamp 53b of the bending tool 53 is rotated 90 ° counterclockwise.

Next, the first up-down cylinder 59 configured at the lower portion of the bending cylinder 51 is configured to move the bending tool 53 up and down, and the clamp 53b of the bending tool 53 is moved to a working position. It is located on the side of the coupling bar (3c) of the in-weather strip (3).

In the initial state, the first up-down cylinder 59 contracts and the bending tool 53 is lowered as shown in FIG. 4. In this state, when the jig 11 loaded with the door trim is positioned at the work position according to the contraction of the jig transfer cylinder 13, the bending cylinder 51 expands as shown in FIG. 13 to raise the bending tool 53. . The bending tool 53 is raised so that the clamp 53b is positioned on the side of the coupling bar 3c of the weather strip 3 as shown in FIG.

In the state shown in FIG. 11, when the bending cylinder 51 expands and the rack gear 55a moves left or right, the pinion gear 53a engaged with the rack gear 55a rotates clockwise or counterclockwise. do. As the pinion gear 53a rotates, the clamp 53b connected to the pinion gear 53a also rotates, so that the clamp 53b rotates clockwise or counterclockwise, and the clamp 53b rotates. The coupling bar 3c of the weather strip 3 is bent left or right. When bending is completed, as shown in FIG. 3. That is, as shown in FIG. 3, the coupling bar 3c of the weather strip 3 is bent from the lower side of the door trim 1 to the left or right side. Thus, the weather strip 3 is firmly coupled to the door trim 1.

When bending is completed, the bending cylinder 51 of the state as shown in FIG. 13 contracts and returns to the initial state as shown in FIG. 4, and the rack shaft 55 moves to the left or right according to the contraction of the bending cylinder 51. The rack gear 55a is returned to the left or right side, the pinion gear 53a meshed with the rack gear 55a is rotated 90 degrees counterclockwise or clockwise to return to the initial state, and is engaged with the pinion gear 53a. The clamp 53b is rotated 90 degrees counterclockwise or clockwise to return to the initial state. As a result, when the bending cylinder 51 contracts and returns to the initial state, the bending tool 53 on the left side rotates 90 ° counterclockwise to return to the initial state, and the bending tool 53 on the right side rotates 90 ° clockwise. Rotate to return to the initial state.

Next, the pressing cylinder 61 configured at the upper portion of the bending tool 53 is configured vertically downward to press the weather strip 3 from the upper side so that the weather strip 3 is closed while the bending tool 53 is bending. This configuration prevents flow from the trim 1.

A stripper 63 is connected to the pressing cylinder 61 so that the stripper 63 presses the weather strip 3 from above. The initial state of the pressing cylinder 61 is contracted so that the stripper 63 is raised as shown in FIG. 6 or 7, and the pressing cylinder 61 is pressed when pressing the weather strip 3 according to the bending process. Expands and the stripper 63 descends as shown in FIG. 8 or 11. When the bending by the bending tool 53 is completed, the pressure cylinder 61 is contracted to return to the initial state, and accordingly the stripper 63 is also raised to release the pressure of the weather strip 3.

If the door trim (1) and the weather strip (3) located in the working position to sequentially describe the bending process proceeds in the state, the first up-down cylinder 59 is expanded to clamp the bending tool ( 53b) is positioned on the side of the weather strip coupling bar 3c, and then the pressure cylinder 61 expands to prevent the stripper 63 from pressing the weather strip 3 from the top to flow. 51 expands and the clamp 53b rotates clockwise or counterclockwise to bend the weather strip coupling bar 3c. When the bending is completed, the pressure cylinder 61 is contracted to raise the stripper 63, the first up-down cylinder 59 is contracted to lower the bending tool 53, and the jig transfer cylinder 13 is expanded to jig. Push 11 forward to allow the operator to unload the weatherstrip 3 and the door trim 1 where the bending is completed.

As described above, the automobile door trim thermal fusion and weather strip bending simultaneous molding machine according to the present invention is configured so that the heat fusion and the bending machine are integrally formed and heat fusion and bending are performed at the same time. Accordingly, this simultaneous molding machine has the advantage that the scratch occurrence rate of the door trim is significantly reduced, there is an advantage that the productivity and productivity is improved by shortening the labor time and working time. And it takes up less space and has the advantage of cost reduction. The present simultaneous molding machine is very useful when used for thermal welding of an automobile door trim and for coupling the weather strip 3 to the door trim.

Claims (1)

A jig (11) configured to fit the shape of the door trim (1) so as to be horizontally transported by the air cylinder (13) and to support the door trim (1) to which the weather strip (3) is coupled; When the door trim 1 placed on the jig 11 comes to the working position according to the horizontal movement of the jig 11, the door trim 1 is lowered by the air cylinder 37 so as to heat-bond the engaging portion of the door trim 1. A heat welding machine in which a plurality of heat welding tools 33 are arranged; A plurality of bending tools 53 are moved to the lower part of the weather strip 3 by an air cylinder 59 to bend the coupling bar 3c of the weather strip 3 while the heat welding device is heat-sealed. Simultaneous molding of thermal welding of automobile door trim and bending of weather strip comprising a bending machine for fixing the strip 3 to the door trim 1 firmly