JPH0340438Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses tools arranged radially around the central processing position of the tool plate - each tool is fixed to a tool pedestal, and the tool pedestal is moved by a slide plate attached to the tool plate. The present invention relates to a forming device in a radial bending machine for producing molded articles from wire or strip material by means of a radial bending machine adapted to move relative to a central processing position, such as the machine shown in Japanese Patent Application Laid-Open No. 59-232738.

As shown in FIGS. 6 and 7, this conventional machine is equipped with a central drive large gear 70 rotatably supported on a shaft, and a pinion 67 at the tip of a drive shaft 60 supported at right angles to a guide 63. is meshed with the external teeth of the central drive large gear 70, and cam followers 66 and 69 provided on the tool slide 62 are in contact with a cam 61 keyed to the drive shaft 60, thereby connecting the tool slide 62 and the fixed holding member 65. The rotation of the central driving large gear 70 causes the fixed holding member 65, to which the tool is attached to the tip via the tool support 68, to move back and forth. That is, the tool T is transferred from the tool slide 62 operated by the cam 61 via the fixed holding member 65.
1...The tool is connected to the tool support 68 that fixes T5, and the tool is appropriately sent to the working position under the tool slide 62 whose motion is guided by the cam 61 and the guide 63. Normally, several sets of slide units are mounted radially at a central molding position. In this design, removal of individual tools when changing the product being manufactured is carried out by the tool slide 6.
2. Since the fixing member 65 and the tool must be removed as a whole, the parts to be removed are quite heavy, making it difficult and time consuming to replace the tool. A method has also been proposed in which the tool is hooked onto the tool support and only the tool is replaced (Japanese Patent Publication No. 48-28270), but this method has the problem that it takes time to adjust the mounting state of the tool. It was hot. In other words, in this type of apparatus, the cam and tools must be replaced and the mounting conditions of the tools and the like must be adjusted every time the required shape of the molded product changes. For this reason, shortening the tool exchange time and shortening the time for adjusting the mounting state of tools, etc. have become essential conditions for improving production efficiency. Considering the above, it is clear that in molded product production, when the same molded product is manufactured again (production factories that manufacture molded products often produce a wide variety of small quantities in a sequential cycle)
A device that allows tools to be easily attached to the device, eliminates the trouble of adjusting the tool attachment state, and allows production work to be performed at the same time as the tool attachment is considered to be a more efficient device, reducing the time required for setup changes and adjustments. There has been a desire for something that can save labor. In view of the above, the present invention is a device that allows you to adjust the mounting position of a tool once and then remove the adjustment from the time of mounting the tool again.In order to enable easy tool replacement, the present invention has a tool plate. The upper slide plate, tool pedestal, tools, etc. are integrated with the tool plate and can be removed as they are, and other tools, tool pedestals, slide plates, etc. whose mounting positions have already been adjusted can be removed. The present invention proposes a device that can be replaced with a tool plate.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below with reference to figures showing embodiments thereof. FIG. 1 in the example diagram is a plan view of the device;
2 is a cross-sectional view taken from FIG. 1, FIG. 3 is a cross-sectional view taken from FIG. 1, FIG. 4 is a cross-sectional view taken from FIG. 1, and FIG. 5 is a view taken from FIG. 1. A base 11 is fixed to the front part of the frame 10 of the device of the present invention, and the base 11 is fixed to the center of the base 11.
And the holder 12 is fixed by passing through the frame 10. The rotating shaft 13 is rotatably held in the center of the holder 12 via bearings 14, 14', and a large gear (not shown) is provided at the rear end of the rotating shaft 13 to rotate with the power transmitted from the drive mechanism. ) is fixedly inserted. The cam holder 1 has a flange 16a at the front end of the rotating shaft 13.
6 is attached, and a push cam 17 of an appropriate shape is fixed to the flange 16a with bolts 18. and,
The abutment plate 19 is fixed to the front end surface of the rotating shaft 13 with bolts 20 and brought into pressure contact with the end surface of the cam holder 16 to prevent the cam holder 16 from coming off the rotating shaft 13. Here, the push cam 17 can be easily replaced by removing the bolt 18.

On the other hand, regarding the tool drive mechanism operated by the push cam 17, a stand 21 erected on the base 11 is fixed with bolts 22. The stand 21 has a hollow 2 in the center with a narrow step 21a at the front.
3, and the lower shaft 24a of the support shaft 24 is connected to the hollow 23
into the stepped portion 21a of the support shaft 24 with the bolt 25.
A contact plate 26 is attached to the lower end of the support shaft 24, and the support shaft 24 is held on the stand 21 via the contact plate 26. The upper shaft 24b of this support shaft 24 protrudes from the stand 21, holds the lever 27 in a swingable manner via a bearing 28, and further attaches the contact plate 30 to the support shaft 24 with a bolt 29.
The lever 27 is attached to the upper side, and the lever 27 is vertically sandwiched between the contact plate 30 and the upper surface of the stand 21 to hold it slidably. The tip of this lever 27 consists of two parallel upper and lower layers of plate-like bodies 27a and 27b having a middle space 27c, and the roller 31 is arranged in the space 27c.
It is installed so that the top and bottom are sandwiched by 27b,
The roller 31 is made rotatable by a pin 32 provided vertically through the plate-like bodies 27a and 27b. In addition, a spring stop 33 is fixed below the plate-like body 27b at the tip of the lever 27, and a tension spring 35 is attached between it and the spring stop 34 installed on the base 11, so that the tip of the lever 27 is always moved to the left (the first (Fig.) to bring the roller 31 into contact with the push cam 17.
On the other hand, a processing section (not shown) is provided at the center of a tool plate 37 mounted in a holding hole 36 of the frame 10, into which material is transferred and processed by a tool 38. The movement of the tool 38 to the center processing position during material processing moves the tool 38 to the tool support 3.
9 with bolts 40, and guide the tool support 39 to the center processing position using the guide of a slide plate 41 installed on the front side of the tool plate 37 (FIG. 5).
The tool 38 is moved back and forth toward the processing section. The tool support 39 is driven by attaching a central rod 43 to the front end of the tool support 39 with a bolt 42, and connecting pieces 4 that swing around the central rod 43 as a fulcrum.
A pin 45 is provided on the right side of the tip of the lever 27 (FIG. 1) and vertically penetrates the plate-like bodies 27a and 27b.
A connecting piece 46 that swings through the connecting piece 46 is provided, and a connecting bolt 47 is screwed between the connecting pieces 44 and 46, respectively. One of the connecting bolts 47 has a left-handed thread, and the other has a right-handed thread, and tightening nuts 48 and 49 are tightened on each bolt, so that the interval between the connecting pieces 44 and 46 can be adjusted. As a result, the rotational drive of the push cam 17 becomes the movement of the lever 27 which swings around the support shaft 24 via the roller 31, and further the connecting piece 4
6. The motion is transmitted to the tool support 39 via the connecting bolt 47 and the connecting piece 44, and the tool 38 is moved to the center processing position. Here, by removing the pin 45 from the lever 27, the lever 27 and the swing piece 46 can be easily engaged and disengaged.

The present invention is based on the above configuration, and the small gear 15 meshes with the large gear by rotation of the large gear (not shown).
is rotated, and this rotation is transmitted to the rotating shaft 13,
Further, the rotation is transmitted to a push cam 17 having an appropriate shape that is connected to the rotating shaft 13, resulting in rotational movement of the push cam 17. Furthermore, since the roller 31 installed on the lever 27 is constantly pressed against the push cam 17 by the action of the tension spring 35, the lever 27 swings about the support shaft 24 at appropriate times due to the shape of the push cam 17. That will happen. Due to this swinging action, a connecting bolt 47 is connected to a connecting piece 46 that is swingably connected by a pin 45 installed at the tip of the lever 27.
Furthermore, the tool support 39
9 moves toward the central processing position according to the guide of the slide plate 41 and reciprocates as appropriate. Therefore, tool support 39
The tool 38 fixed to is reciprocated as appropriate depending on the shape of the push cam 17 toward the center machining position. Here, when changing the shape of the molded product processed by the tool 38 etc., the bolt 1
The push cam 17 can be replaced by removing the pin 8 from the lever 27, and the tool plate 37 can be replaced by removing the pin 45 from the lever 27. That is, the lever 27 and the connecting piece 4
6, the tool plate 3 is removed from the machine body (frame 10) together with the tool plate 37.
Slide plate 41 attached to 7, tool support 3
9, tool 38, connecting piece 44, connecting bolt 47,
It becomes possible to remove and store the connecting piece 46 as one piece. Therefore, conventionally, the guide 63, the tool slide 62, the fixing member 65, the tool support 68, and the tool T are assembled on the tool plate, or in some cases, the frame 10 is also included when the tool plate is removed. This is quite heavy, and it is inconvenient for the operator to replace the lumps for each part they make.Also, the tool slide often comes off, so it is necessary to readjust the travel distance of the tool slide. However, in this application, by removing the pin 45, the slide plate 41, the tool support 39, the tool 38, and the connecting pieces 44, 46 attached to the tool plate 37 can be removed as one unit, so once the adjustment is made, it can be done again. The trouble of making adjustments when making the same part is saved, and since the tool 38 etc. is stored as attached, there is no need to adjust the position of the attached state again, and when making a molded product of the same shape again, the attachment action is the opposite of the above. The tool plate 37 with the push cam 17, tool 38, etc. still attached to the frame 10 can be attached to the frame 10.
It becomes possible to immediately resume molded product production without adjusting the position of the tool 38. In addition, as a result of changing the linear sliding method of the tool slide using a cam to a lever method using a cam, the tool plate with these tools attached is approximately half that of the conventional fixed holding material. The weight has been reduced and the weight has become easier to handle, making it easier for workers to handle.

As explained above, according to the device of the present invention, it is possible to remove the tool from the molding machine body while the tool is still in the state of producing the molded product, and since it is removed with the tool still adjusted, production can be started immediately when it is reinstalled. It has the advantage that it can be restarted and can be easily installed and removed.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the device showing an embodiment, Fig. 2 is a sectional view of Fig. 1, and Fig. 3 is a - of Fig. 1.
4 is a sectional view of FIG. 1, FIG. 5 is a perspective view of FIG. 1, FIG. 6 is a front view of a conventional radial bending machine, and FIG. 7 is a plan view thereof. It is. 10... Frame, 27... Lever, 13...
Rotating shaft, 31...Roller, 15...Small gear, 37
...Tool plate, 17...Push cam, 38...
Tool, 21... Stand, 39... Tool support, 24... Support shaft, 41... Slide plate, 44
... Connection piece, 46 ... Connection piece, 45 ... Pin, 4
7... Connection bolt.

Claims (1)

[Scope of utility model registration request] Radial bending is a tool fixed to a tool pedestal that is arranged radially around the center processing position of the tool plate and reciprocates with respect to the center processing position, and performs various processing on the material at the center processing position. In the machine, there is a rotating shaft that rotates while being supported by a frame by power from a drive mechanism, a push cam that is detachably installed on the rotating shaft, a support shaft that is held on a stand that stands on the frame, and the support shaft. A lever that can be oscillated by the action of the push cam, a connecting piece that is connected to the tip of the lever so that it can oscillate, and a tool support that fixes the tool. The tool plate is composed of a movably installed connecting piece and a connecting bolt that connects both connecting pieces, and by separating the pin connected between the lever and the connecting piece, the tool plate,
A forming device for a radial bending machine, characterized in that a slide plate, a tool support, a tool, a connecting piece, a connecting bolt, and a connecting piece can be integrally removed from a holding hole of the forming machine.