KR200188825Y1 - Bellows moulding plate fixture - Google Patents

Abstract

The present invention relates to a bellows forming plate fixing device for joining each forming plate in the lower frame so as to form a bellows to be used in connection with an automobile exhaust system, in particular, when the bellows molding is combined.

In order to achieve this, the present invention is installed in the lower frame 2 and the upper frame 3 of the bellows molding machine 1 so as to be foldable, and at the same time, the moldings are integrally combined or separated to form an annular corrugation. In fixing the plates 5, 6: opposite sides of the forming plates 5 installed by the lower frame 2, one end of which is flush with the hinge 24, protruding for clamping A clamp 20 provided with a piece 22; Clamping operation means 30 for simultaneously imparting or releasing the clamping force of the clamps 20 when the forming plates 5 and 6 are mutually separated or joined; Forming plates 5 according to the molding of the bellows by forming the bellows grooves 40 installed opposite to the side surfaces of the plates 6 so that the protruding pieces 22 of the clamp 20 are inserted and supported. The combination of (6) can be made easily and quickly.

Description

Bellows molding plate fixture

The present invention is to form a bellows to be used in connection with the vehicle exhaust system, more specifically, the bellows plate fixing device for firmly coupling each forming plate in the lower frame, so as to be combined in one when forming the bellows so as not to be separated from each other It is about.

In general, the bellows is interconnected to the connection part of the exhaust pipe connected with the engine to remove the combustion gas generated from the engine of the car to the outside. The bellows has an annular wrinkle to prevent vibration, shock or thermal deformation due to its characteristics. The part is formed repeatedly.

Such bellows are typically continuously and repeatedly manufactured by a bellows molding machine, which will be described below with reference to FIG. 1.

That is, Figure 1 schematically shows a bellows molding machine (1) in which the forming plate fixing device according to the present invention is installed, and the lower frame (2) fixed to the base to form a bellows having an annular pleat and the lower frame Into the upper frame (3), which is operated by lifting the cylinder (4) relative to each other, a plurality of forming plates (5) and (6) are installed on the pair of guide rods (7) (8), respectively. It is located between the upper and lower frames (2) and (3) while being folded (opened or opened) by the operation of each cylinder (9) (10) installed on one side about the frame (2) (3). The end is to form a plurality of annular corrugations to the outer peripheral surface of the cylindrical member 15 supported by the operation of the cylinders 13 and 14 of the center members 11 and 12.

Meanwhile, in order to form the bellows, the upper mold 3 is lowered by the operation of the cylinder 4 in order to mold the bellows, so that the molded sheets 5 are integrally joined together. (6) should be fixed firmly so that the bellows is not flowed by strong hydraulic pressure and there is no slight gap, because the cylindrical member is inserted into the lower frame 2 and the upper frame 2 Since the corrugation is formed by the strong water pressure, the cylindrical member 15 must be firmly fixed to prevent the cylindrical member 15 from moving in each of the forming plates 5 and 6 even by the strong water pressure. .

However, in the related art, although not shown separately in the drawings in fixing the respective forming plates 5 and 6 to be joined at the time of bellows forming, screw holes are formed at both sides of each of the forming plates 5 and 6, After the separate fixing plate was placed, each fixing plate was fastened by bolts one by one, so that the work time for the fastening and dismantling of them was very high and the tightening work was very primitive and troublesome.

Therefore, in the case of the conventional fixing device, a large problem that the worker has to tighten and dismantle the fixing plate with bolts every time the molding plates are combined or separated during bellows molding, thus delaying work time and a large amount of bellows. If it was not possible to produce, and each of the molding plates tightened with bolts did not have the same tightening force due to the worker's own flow, the molding plate flows due to the strong hydraulic pressure during the bellows manufacturing process, causing creases. There was often a problem that parts were deformed to produce defective products.

The present invention is to solve the above-mentioned general drawbacks, the object of the present invention is to securely coupled to the upper mold plates that are integrally joined to the lower mold plates in the bellows molding by a clamp operated by the clamp cylinder operation It is to provide a bellows plate fixing device that does not flow at all even under strong water pressure.

Another object of the present invention is that the clamp operation means for clamping or releasing the upper and lower molded plates is to be automatically operated according to the control operation of the sensor.

1 is a front view schematically showing the overall structure of a bellows molding machine equipped with a fixing device according to the present invention

Figure 2 is a schematic excerpt perspective view of the upper, lower frame is installed in accordance with the present invention

Figure 3 is a side view of the clamping force is released according to the present invention, each forming plate is separated up and down

Figure 4 is a side view of a state in which the clamping force is given in accordance with the present invention combined with each molding die integrally combined

Explanation of symbols for the main parts of the drawings

1: bellows forming machine 2, 3: lower, upper frame

5,6: Molded plate 16: bellows

20: Clamp 22: Protrusion

24, 35: hinge 30: clamp operating means

32: fixed rod 34: connecting member

36: Clamp Cylinder 36a: Cylinder Shaft

40: hanging groove 50: detection sensor

Features of the bellows molding plate fixing device according to the present invention for achieving the above object is to be installed in each of the lower frame and the upper frame of the bellows molding machine to be folded and at the same time to be integrally combined to form an annular pleat or In fixing the forming plate to be separated operation: the clamp is provided opposite to both sides of the forming plate installed by the lower frame, one end is held by the hinge, the projection piece for clamping; Clamping operation means for simultaneously giving or releasing the clamping force of the clamps at the time of separating or joining each of the forming plate: and installed opposite to both sides of the forming plate provided by the upper frame so that the protrusions of the clamp is inserted It is in the point which consists of a hanging groove.

The clamp operating means according to the present invention is a fixing rod which is penetrated and supported to simultaneously support the clamps installed on both sides of the forming plate in the lower frame, and the And a connecting member connected to and supported by both ends of the fixing rod and hinged to the fixing plate at both ends of the lower rod, and at least one clamp cylinder for elevating and manipulating a cylinder shaft respectively connected to the connecting member.

In addition, according to the present invention, the clamp operation means is preferably configured to be automatically controlled by a sensor when the separation or bonding of the molded plates.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the bellows molded plate fixing apparatus according to the present invention will be described in detail as follows.

Figure 1 schematically shows the overall structure of the molding machine 1 for molding the bellows according to the present invention, each forming plate (5) (6) provided with each lower frame (2) and upper frame (3) Is configured to be integrally coupled to or separated from each other by the fixing device according to the present invention, but the bellows molding using the molding machine 1 has already been described in detail before describing the prior art, so a detailed description thereof will be omitted. In the following, with reference to Figures 2 to 4 with respect to the fixing device of each molded plate in the present invention. In the following description, the same reference numerals as in FIG. 1 denote the same components, and a detailed description thereof will be omitted for convenience.

Figure 2 schematically shows the upper frame (2) and the lower frame (3) is installed, the mold holding device according to the bellows (16) molding according to the present invention, as shown in the lower, upper frame (2) (3) Each of the guide rods (7) (8) is provided with a plurality of molding plates (5, 6) to be movable, and to the center of each of the molding plates (5) (6) The semicircular shaped grooves 5a and 6a for forming the bellows 16 having an annular pleat are formed, respectively.

In addition, clamps 20 for fixing the forming plate 6 of the upper frame 3 are provided on both sides of each of the forming plates 5 installed in the lower frame 2 to face each other. 20 is a protruding piece 22 for coupling, and one end of each of which is retained as a pin 24, as shown in Figure 3, each of these clamps 20 is clamp operation means (described below) ( 30) can be rotated simultaneously.

The clamp operating means 30 includes a fixing rod 32 which is penetrated and supported by the clamping rods 20 installed on both sides of each of the forming plates 5 at the same time, and both ends of the fixing rod 32. In order to lift and operate the connecting member 34 and the cylinder shaft 36a respectively connected to the connecting member 34, which are connected to each other and fixed to the fixing plate 2a at both ends of the lower frame 2. It includes one or more clamp cylinders 36 installed into the interior of the frame as shown in FIG.

Meanwhile, as shown in FIG. 2, the molded plates 6 of the upper frame 3 which are lifted and operated with respect to the lower frame 2 during bellows molding are formed on both sides of the respective forming plates 5 of the lower frame 2. The guide grooves 40 in which the projecting pieces 22 of the installed clamps 20 are inserted and supported are respectively formed to face each other.

As shown in FIG. 3, the upper end surface of the protruding piece 22 of each clamp 20 and the corresponding contact portion of the guide groove 40 in which the protruding piece 22 is inserted are respectively cut to each other when they are combined. It is desirable to exclude interference to induce easy entry and exit.

Meanwhile, the clamp operating means 30 for rotating the clamp 20 is automatically controlled by the sensor 50 as shown in FIG. 2, for example, bellows molding. When the upper frame 3 is lowered relative to the lower frame 2, the respective forming plates 5 and 6 are manipulated to be integrally clamped, and when the bellows molding is completed, the respective forming plates (by separate signals) The clamping force of 5) (6) is released so that the upper frame 3 is raised again.

Here, the sensor 50 is shown briefly in the form of a box for convenience of explanation, which is a predetermined type of sensor suitable for the present invention, the detection position is also designed to be able to be operated as needed as needed.

The coupling state of the forming plates 5 and 6 respectively installed in the lower frame 2 and the upper frame 3 according to the bellows molding of the present invention configured as described above will be described. First, referring briefly to the operating state for forming the bellows 16 having a pleat formed in the cylindrical member 15 with reference to FIG. 1, the upper mold 3 is raised relative to the lower mold 2 before the bellows molding. Each of the forming plates 5 and 6 is separated from each other, and in order to form the bellows, the upper frame 3 is lowered again by the operation of the cylinder 4 with respect to the lower frame 2 and at the same time the respective forming plates (5) and (6) are joined together to form the bellows (16), wherein each of the forming plates (5) (6) is fixed by the clamp fixing means (30) so as not to move, Figure 3 and This will be described in more detail with reference to FIG. 4.

FIG. 3 shows a state in which the respective forming plates 5 and 6 are separated from each other after completion of one bellows forming, in which the forming plates 5 respectively left at both sides of the lower frame 2 are formed. ), The clamps 20 are pulled about the hinge 24 at one end by the lowering operation of the clamp operating means 30 so that the upper protruding pieces 22 are spread outward.

In this state, when the upper frame 3 is lowered with respect to the lower frame 2 to form the bellows again as shown in FIG. 4, the forming grooves 5a and 6a of the respective forming plates 5 and 6 are circular. And the clamp cylinder 36 of the clamp manipulation means 30 pushes the cylinder shaft 36a upward in accordance with the control operation of the detection sensor 50. At this time, the connecting member 34 and the fixed rod 32 connected thereto are also pushed up and rotated within a predetermined angle range about the hinge 35. In addition, each clamp 20 installed through each of the fixing rods 32 is also rotated at the same time around the pin 24 at one end, and the protruding pieces 22 of the clamp 20 are placed on each of the upper frames 3. It is inserted into and fixed in the groove 40 so that the forming plates 6 of the upper frame 3 are firmly coupled to each other.

Therefore, each forming plate 6 of the upper frame (3) is the lower frame (1) because the clamp 20 is fixed to each of the locking grooves 40 on both sides by the clamp operation means 30 at the time of bellows molding. 2) are integrally fixed to each other, and each of the molded plates 5, 6 is bellows so that all the molded plates always maintain a constant clamping pressure at the same time unless the clamping force of the clamp operating means 30 is released. Even when a strong hydraulic pressure is generated according to the molding, only one of the molding plates does not flow or deform separately.

As described above, according to the bellows forming plate fixing device according to the present invention, when the respective forming plates 5 and 6 are combined to form the bellows, the clamp 20 is rotated and operated automatically by the clamp operating means 30. In addition, since the fixed working time of these forming plates 5 and 6 according to the bellows molding is significantly shortened and is fast and accurate, all the forming plates 5 and 6 are always at the same time at a constant fixed pressure. Since they are fixed to each other, only one forming plate is not flowed or the fixed pressure is not released, thereby enabling accurate bellows formation of the bellows, and having the effect of mass production supply of high quality products at low cost.

Although the present invention has been described with reference to the accompanying drawings, the present invention is not limited thereto, and many modifications and changes may be made without departing from the scope of the following claims.

Claims (3)

Molding plates (5) (6), which are respectively installed in the lower frame (2) and the upper frame (3) of the bellows molding machine (1), and which are integrally joined or separated from each other to form an annular pleat. In fixing): A clamp 20 which is installed to face both sides of the forming plates 5 installed as the lower frame 2, one end of which is held by a hinge 24, and a protrusion 20 for clamping; Clamping operation means 30 for simultaneously imparting or releasing the clamping force of the clamps 20 when the forming plates 5 and 6 are mutually separated or joined; Characterized in that the opposite side of the forming plate (6) installed by the upper frame (3) is installed so as to comprise a guide groove (40) in which the projecting piece (22) of the clamp 20 is inserted and supported, respectively Bellows plate holder. According to claim 1, wherein the clamp operating means 30 is a fixed rod that is penetratingly supported therein to simultaneously support the clamps (20) on both sides of the forming plate (5) in the lower frame (2) 32 and a connecting member 34 connected to both ends of the fixing rod 32 and retained by a hinge 35 with respect to the fixing plates at both ends of the lower frame 2, respectively. And at least one clamp cylinder (36) for lifting and lowering the cylinder shaft (36a). 2. The bellows molding plate fixing device according to claim 1, wherein the clamp manipulation means (30) is automatically controlled by a sensor (50) when the forming plates (5) (6) are separated or joined.