KR200301877Y1 - Apparatus for supplying adhesive in edge-bending machine - Google Patents

Abstract

The present invention relates to an adhesive supply device of an edge banding machine to supply adhesive more smoothly, to accurately clamp a rotating shaft, and to secure a wide filling space to supply sufficient adhesive during continuous operation.

The present invention is the adhesive shaft 10 of the heater 11 is installed, the rotary shaft 20, the rotating shaft 20 of the application roller portion 22 is extended to the upper portion of the transfer screw 21 built in the adhesive cylinder 10, The housing 30 covering the application roller unit 22, the cover 50 which is fitted to the lower portion of the rotating shaft 20, and is fastened by the clamping nut 40, is embedded in the upper and lower portions of the cover 50, thereby rotating the rotating shaft 20. Rotating support bearing 60, retainer ring 70 and the bushing 80, the adhesive control shaft 90 rotatably installed in the housing 30, the application of the rotary shaft 20 The roller part 22 is composed of two pitches of two rows of screws, and the support bearing 60 is formed of a radial ball bearing, and a return passage 31 is formed at the lower portion of the housing 30 to fill the filling space 32. ) Is widened.

Description

Adhesive banding machine for edge banding machine {Apparatus for supplying adhesive in edge-bending machine}

The present invention relates to an adhesive supply device for applying an adhesive to the edge portion of the furniture panel manufactured by the edge banding machine, and more particularly, to supply the adhesive more smoothly, and also to accurately clamp the rotating shaft, and to fill The present invention relates to an adhesive supply apparatus of an edge banding machine, which secures a wide space to supply sufficient adhesive during continuous operation.

In general, wood or man-made wood MDF panels used for office furniture, home furniture, or sink furniture have edge bands such as PP, PVC, veneer and pattern paper through the end banding machine to enhance the aesthetics and extend the service life. It is attached automatically.

As is well known, the edge banding machine attaches the edge band to the panel and cuts the edge of the edge band according to the thickness of the panel. The edge banding machine is an adhesive supply device for applying the adhesive to the edge portion of the panel, and the adhesive is applied. An edge band feeder for transferring the edge bands to the edges of the panels, an edge band attachment device for pressing and attaching the transferred edge bands to the panels, and cutting both ends of the edge bands attached to the edges of the panels according to the length of the panel Edge band cutting device, edge band trimming device that trims the edge according to the thickness of panel, and buffing device that removes adhesive on the edge of the panel through the edge band trimming device. do.

In general, the edge banding machine, as shown in Figure 1, the panel (P) is to be transported in one direction on the conveyor (C), the adhesive is applied to the edge portion while passing through the adhesive supply (A) while the panel (P) is transported It is intended to be applied. On the other hand, the edge band (B) released from the band roll (R) is cut to a predetermined length by the cutter (S) while passing through the guide roller (R1) and the feed roller (R2), a plurality of pressure rollers (R3) It is attached to the edge of the panel P under pressure. Here, the adhesive supply (A) should be configured so that the adhesive is always applied in a uniform amount to the edge of the panel (P), and should be configured so that the adhesive does not leak.

To this end, in the Korean Utility Model Registration No.0205948 (Registration Date: September 27, 2000), as shown in FIGS. 2A and 2B, the adhesive container 1 and the adhesive container 1 are inserted in the vertical direction. And an application roller portion (2a) provided at the top and a rotating shaft (2) having a conveying screw (2b) formed at the bottom and a housing (3) covering the application roller portion (2a) of the rotary shaft (2). In the adhesive supply apparatus of the present invention, the adhesive adjusting shaft 4 is provided on the inner wall of the housing 3 adjacent to the outer circumferential surface of the coating roller portion 2a, and the adhesive adjusting shaft 4 is along the axial direction. A flat portion is formed at a portion, and the retainer ring 5 made of a fluororesin material is installed between the shaft hole of the adhesive container 1 and the rotating shaft 2 so that the adhesive does not flow between the gaps. Feeder was presented.

However, the following problems are pointed out structurally in the conventional adhesive supply apparatus configured as described above.

First, since the application roller portion 2a for applying the adhesive to the panel was formed by a single pitch of one-pitch screw, it takes a long time to structurally supply the adhesive, which causes a problem that the adhesive is not smoothly supplied.

Second, since the support bearing 7 mounted on the upper and lower parts of the cover 6 to rotatably support the rotating shaft 2 is composed of a thrust bearing, the clamping nut 8 is structurally strong without any play when the clamping nut 8 is fastened. When tightened, the rotating shaft 2 could not be driven, and when the clamping nut 8 was loosely tightened, a trouble occurred. Therefore, there was a problem in that the accurate clamping of the rotating shaft 2 could not be performed.

Third, since the return passage 3a for returning the overflowed adhesive to the adhesive container 1 is formed in the upper part of the housing 3, as shown in FIG. 2A, the inner wall 3b of the return passage 3a is structurally formed. Due to the narrow filling space 3c for raising and filling the adhesive, the adhesive could not be supplied sufficiently. As a result, the adhesive was insufficient in the continuous operation. There was a problem that the adhesive is not applied.

An object of the present invention is to devise to solve the conventional drawbacks as described above, to improve the structure of the coating roller portion of the rotating shaft to supply the adhesive more smoothly, and also to improve the structure of the support bearing for the rotating shaft during clamping operation It is to provide an adhesive supply device of the edge banding machine to be able to clamp the precisely, and to secure a wide filling space of the adhesive to supply sufficient adhesive during continuous operation.

In order to achieve the above object, the present invention forms a 2-pitch two-line screw in the coating roller unit so that the adhesive is smoothly supplied, and the rotary shaft is smoothly driven without a load even if the clamping nut is firmly tightened for accurate clamping. The support bearing of the ball bearing is used, and a return passage is formed in the lower part of the housing to secure an enlarged filling space.

1 is a schematic view showing the edge band attachment portion of a typical edge banding machine.

Figure 2a is a side cross-sectional view showing the structure of a conventional adhesive supply.

Figure 2b is a front sectional view showing the structure of a conventional adhesive supply.

Figure 3 is a side cross-sectional view showing a structure of the present invention.

Figure 4 is a front sectional view showing a structure of the present invention.

Figure 5 is a plan sectional view showing a structure of the present invention.

6 is a detailed view of the coating roller unit according to the present invention.

<Code Description of Main Parts of Drawing>

10: glue container 11: heater

20: rotating shaft 21: feed screw

22: coating roller portion 30: housing

31: return passage 32: charging space

40: clamping nut 50: cover

60: support bearing 70: retainer ring

80: bushing 90: adhesive adjustment shaft

Hereinafter, the technical configuration of the present invention in detail according to the accompanying drawings.

3 to 6, the adhesive supply apparatus of the present invention edge bending machine, the coating roller to the upper portion of the adhesive container 10, the transfer screw 21 built into the adhesive container 10, the heater 11 is installed The cover 50 which is inserted into the lower portion of the rotating shaft 20, the housing 30 covering the coating roller part 22 of the rotating shaft 20, the lower portion of the rotating shaft 20, and fastened by the clamping nut 40. The adhesive is rotatably installed in the upper and lower portions of the cover 50 to support the support shaft 60 and the retainer ring 70, the bushing 80, and the housing 30 to rotatably support the rotating shaft 20. In the configuration consisting of a control shaft 90, the application roller portion 22 of the rotary shaft 20 is made of two pitches of two rows of screws, the support bearing 60 is made of a radial ball bearing, the housing ( It is characterized by the technical configuration that the return passage 31 is formed in the lower portion of the 30 to enlarge the filling space 32 wide.

Here, the adhesive container 10 is to accommodate the adhesive applied to the edge portion of the panel, the heater 11 for heating the adhesive is installed on the bottom and front surfaces of the adhesive container 10, respectively, the adhesive container 10 At one side of the) is formed a shaft hole 12 into which the feed screw 21 is fitted.

The rotating shaft 20 is driven by a drive means, the rotating shaft 20 is integrally formed with a feed screw 21 fitted into the shaft hole 12 of the adhesive container 10, the feed screw 22 An upper part of the application roller unit 22 mounted on the housing 30 is integrally formed.

Therefore, when the rotary shaft 20 is driven through the drive means, the adhesive is transferred upward along the transfer screw 21 to the application roller portion 22 formed with the thread.

The coating roller portion 22 of the rotating shaft 20 is to apply an adhesive to the edge portion of the panel, the outer periphery of the coating roller portion 22 is formed with a thread along the circumference, wherein in the present invention as described above Likewise, the thread of the application roller unit 22 is composed of two pitches of two rows of screws to smoothly supply the adhesive. At this time, according to a preferred embodiment of the present invention, as shown in FIG. 6, the coating roller part 22 is composed of three rows of screws containing three pitches P in one lead L.

On the other hand, in the embodiment of the present invention, as described above, it is preferable to form the thread of the coating roller section 22 by two-pitch two-row screw, but if necessary, the coating roller section 22 of the rotating shaft 20 Clearly, it may consist of multiple screws of more than two pitches.

The housing 30 is installed on the adhesive container 10 to surround the application roller portion 22 of the rotating shaft 20, and the housing 30 returns the adhesive that overflows to the adhesive container 10. A return passage 31 is formed, and a filling space 32 for raising and filling the adhesive is formed between the housing 30 and the application roller portion 22. According to the present invention, the housing ( Since the return passage 31 is formed under the 30, the filling space 32 can be widened.

An opening 33 is formed in front of the housing 30 such that the panel is in contact with the application roller unit 22, and the application roller unit 22 is rotatably mounted on the upper portion of the housing 30. The cap 34 is installed.

The clamping nut 40 is to fasten the rotating shaft 20, the clamping nut 40 is screwed to the threaded portion 23 of the rotating shaft 20.

The cover 50 surrounds the support bearing 60, the retainer ring 70, and the bushing 80, and the cover 50 is attached to the rotary shaft 20 through the clamping nut 40 through an adhesive container ( 10) is mounted on the bottom. At this time, the metal cap 51 is mounted between the cover 50 and the adhesive container 10.

The support bearing 60 is mounted on the upper and lower portions of the cover 50, respectively, to rotatably support the rotating shaft 20. The support bearing 60 has no load even when the clamping nut 40 is strongly tightened. The rotating shaft 20 is made of a radial ball bearing so as to drive smoothly.

The retainer ring 70 is mounted on the cover 50 to support the rotating shaft 20, and the retaining ring 70 blocks the adhesive from flowing down between the support bearings 60 as the rotating shaft 20 rotates. It plays a role.

The bushing 80 is disposed below the support bearing 60 in a state of being fitted to the rotation shaft 20.

The adhesive control shaft 90 is rotatably installed in the housing 30 to maintain a constant distance from the coating roller unit 22 to always apply an adhesive to the edge of the panel in a uniform amount, such an adhesive control shaft ( 90, as shown in FIG. 5, the gap adjusting piece 91 for adjusting the gap with the coating roller part 22 is integrally formed, and the housing cap 34 is formed on the upper portion of the adhesive adjusting shaft 90 as shown in FIG. The control knob 92 which protrudes upward through the through) is formed integrally.

As also known in the present invention configured as described above, when the rotating shaft 20 is driven by the driving means, the adhesive of the adhesive container 10 is transferred upward along the transfer screw 21, and the adhesive transferred to the upper is filled with a filling space ( The adhesive is applied to the edge portion of the panel which is supplied to the application roller unit 22 and is supplied to the filling space 32 while being conveyed through the conveyor 32, and is conveyed to the conveyor. The adhesive that overflows is returned to the housing 30. Returning to the adhesive container 10 through the 31, the operation relationship of forming an adhesive layer of a predetermined thickness on the coating roller unit 22 by adjusting the adhesive adjusting shaft 90 as in the prior art.

However, the adhesive supply apparatus of the present invention edge banding machine has the following advantages in structure.

First, since the coating roller portion 22 of the rotating shaft 20 for applying the adhesive to the edge portion of the panel is formed with two pitches of two rows of screws or more pitches, the adhesive is structurally supplied with one row of threads. In contrast, in the present invention, since the adhesive is supplied at the same time with two or more threads, the time for supplying the adhesive is shortened, and thus, the adhesive can be smoothly supplied.

Second, since the support bearing 60 mounted on the upper and lower portions of the cover 50 to rotatably support the rotating shaft 20 is made of a radial ball bearing, the clamping nut 40 has a structural structure of the radial ball bearing. When tightening the clamping nut 40 without tightening when tightening, there is no load, so the rotating shaft 20 is smoothly driven, so that the accurate clamping of the rotating shaft 20 is performed.

Third, since the return passage 31 for returning the overflowed adhesive to the adhesive container 10 as shown in Figure 3 is formed in the lower portion of the housing 30, the filling space 32 for structurally raising and filling the adhesive Compared with the prior art, since it is possible to supply a sufficient amount of adhesive, the adhesive is sufficient during continuous operation, and there is an advantage of uniformly applying a certain amount of adhesive to the edge portion of the panel. That is, in the related art, the return passage 3a is formed in the upper portion of the housing 3 and the filling space 3c is very narrow due to the inner wall 3b. Since the 31 is directly formed in the lower portion of the housing 30, the existing inner wall 3b is deleted, so that the filling space 32 can be expanded as much as the area of the inner wall 3b.

As described above, the present invention can be supplied more smoothly because the application roller portion of the rotating shaft consists of two rows of two-pitch screw or two screws of two pitches or more, and also the support bearing is made of a radial ball bearing clamping work By tightening the clamping nut securely, the rotating shaft can be clamped accurately, and the return passage is formed in the lower part of the housing, so that the filling space of the adhesive is enlarged.

Claims (2)

The adhesive roller 10 having the heater 11 installed therein, the rotary shaft 20 having the application roller portion 22 extended to the upper portion of the transfer screw 21 embedded in the adhesive container 10, and the application roller portion of the rotary shaft 20. The housing 30 covering the 22, the cover 50 inserted into the lower portion of the rotating shaft 20 and fastened to the clamping nut 40, and the upper and lower portions of the cover 50 are rotatably rotated. In the support bearing 60 and retaining ring 70 and the bushing 80, the adhesive control shaft 90 is rotatably installed in the housing 30, the application roller portion of the rotating shaft 20 ( 22 is composed of two pitches of two rows of screws, the support bearing 60 is made of a radial ball bearing, the return passage 31 is formed in the lower portion of the housing 30 to widen the filling space 32 Adhesive supply apparatus of the edge banding machine, characterized in that enlarged. According to claim 1, wherein the application roller portion 22 of the rotating shaft 20, the adhesive supply apparatus of the edge banding machine, characterized in that consisting of multiple screws of two pitches or more.