JP4500513B2 - Steel plate frame press - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a steel plate frame pressing apparatus in the press field.
[0002]
[Prior art]
The press machine is widely used to manufacture various molded products, but the frame of the conventional press machine is casted into a prismatic shape, or an iron plate is welded into a prismatic shape to produce four corner uprights. Or a crown or bed formed of a casting or an iron plate is connected with a tie rod.
[0003]
However, depending on the molded product, there may be a press device that requires sufficient strength in the vertical direction of the slide, which is the press molding direction, but does not require excessive strength in the parallel direction of the slide perpendicular to it. Conventionally, a large-sized and expensive press device has to be used.
[0004]
[Prior art documents]
Then, although the applicant did the prior patent search about using the steel material of predetermined thickness for the side frame of a press apparatus, the related literature could not be searched.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to develop an inexpensive apparatus that can be assembled as easily as possible so as to be compatible with a required press as a side frame of a steel material so that the pressing apparatus has sufficient strength in the pressing direction.
[0006]
[Means for Solving the Problems]
The present invention has been made in view of the above points, and in order to solve the above-described problems, a steel material having a predetermined thickness is processed and formed into an open state as a side frame of a press device, and the opening is formed. The side frame provided with the opening is formed so as to lock the bed and the crown between the both side frames provided with the portion, and the outer frame and the inner frame of the steel material having a predetermined thickness are overlapped and welded , the lower as the upper and the bed side of the heavy I combined side frame with respect to the load is the crown side of the press as an inner frame to superimpose such that the uniform shape of stress distribution during pressing the outer frame of the same width, Provided is a steel plate frame pressing device characterized in that the outer peripheral frame is gradually formed narrower toward the middle part between the upper part on the crown side and the lower part on the bed side. .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The steel plate frame pressing device according to the present invention is formed by forming a steel material having a predetermined thickness as an open side on the side frame of the pressing device , and locking the bed and crown between both side frames provided with the opening. to so formed, the side frame provided with the opening is welded joint by overlapping outer frame and an inner frame having a predetermined thickness steel, heavy I combined side frame with respect to load during pressing The upper part on the crown side of the press machine and the lower part on the bed side have the same width as the outer frame, and the upper part on the crown side and the lower part on the bed side as the inner frame to be overlapped so as to have a uniform stress distribution It is characterized in that the outer peripheral frames are gradually formed narrower toward the middle part in the middle .
[0008]
As shown in FIGS. 1 to 3, the pressing device 1 has a left and right side frame 2 welded and joined together with a steel material having a predetermined thickness with the opening 3 being opened inside the required opening state. A standing leg 4 is attached to the lower end of the side frame 2, a bed 5 is attached to the lower part, and a pressure cylinder 7 also serving as a crown 6 part is attached to the upper part to provide a sufficiently strong and high-strength tie rod 8, bolt 9, 10, the left and right side frames 2 are firmly connected to each other, and a slide 12 is connected to a rod 11 of a pressurizing cylinder 7 so as to face the lower bed 5 and connected to a hydraulic source (not shown) to drive up and down. It can be molded.
[0009]
As shown in FIG. 2, the side frame 2 is formed by superposing an inner frame 14 having a predetermined thickness on an outer frame 13 having a predetermined thickness so as to be welded together. locking the pressurized cylinder 7 which also serves as a 6 parts crown side, engages the bed 5 on the lower side, as a side frame 2 of FIG. 2 the combined I heavy with respect to load during the press sizing such Therefore, it is technically significant and economical to form a uniform stress distribution.
[0010]
For example, as shown in FIGS. 1 to 3, the outer frame 13 has a substantially rectangular outer periphery, and has a uniform thickness with a rounded rectangular inner periphery. The inner frame 14 has an inner periphery opened in the same shape as the outer frame 13, and the outer periphery has the same upper end as the figure and the lower end has the same width as the outer frame 13 toward the center. In the middle part, the steel is made of a steel material such as a carbon steel for mechanical structures having a width that is 1/3 to 1/5 that of the outer frame 13 and a general steel rolled steel material.
[0011]
Further, as shown in FIGS. 1 to 3, the inner frame 14 is formed such that the thickness of the lower portion of the bed 5 is the thickest, the middle mold setting portion 15 is the thinnest, and the upper crown 6 is slightly thicker. The inner and outer peripheral portions of the outer frame 13 are integrally formed by welding.
[0012]
Further, the ring-shaped side frame 2 are joined by overlapping the outer frame 13 and inner frame 14 having a predetermined thickness steel, while the outer side frame 13 of the side frame 2 and constant thickness of the steel material, It is also possible to form the inner frame 14 by superimposing and bonding the inner frame 14 with the upper part being slightly thinner and the lower part being slightly thicker.
[0013]
In the above, the inner frame 14 can be made of a single steel material cut into different thicknesses as described above, but divided into a plurality of parts such as an upper part, a middle part, and a lower part. Then, appropriate modifications can be implemented based on the gist of the present invention, such as welding and joining these to the outer frame 13.
[0014]
As shown in FIGS. 3 and 4, the bed 5 is provided with a push-up cylinder 16 inside, and locking portions 17 that are locked to the side frame 2 are provided on both sides so as to be integrally formed in a block shape. In addition, screw holes 18 for bolt connection are provided on both sides, and are fixed to the side frame 2 with bolts 9.
[0015]
Further, as shown in FIGS. 3 and 4, the crown 6 also includes a locking cylinder 19 that is integrally connected with the pressure cylinder 7, the slide 12 is attached to the rod 11, and the locking portion 19 that locks the side frame 2 on both sides. And are integrally formed in a block shape, and are provided with screw holes 20 for connecting bolts on both sides, and are connected to the side frame 2 with bolts 10. In particular, the crown 6 is provided with a manifold block 21 and the like before and after it as shown in FIGS. 1 and 3 to 5, and collars on both sides of the manifold block 21 and the like as shown in FIGS. 5 (a) to 5 (c). 22 and the spacer 23 are clamped, and the side frame 2 is firmly tightened with the bolt 10 to be coupled.
[0016]
Further, the side frames 2 on both sides are respectively opened with tie rod insertion holes 24 at a required depth so that the side frames 2 are assembled in parallel as shown in FIG. The two side frames 2 are firmly connected in parallel with bolts 25 (nuts when both ends of the tie rod 8 are protruded from both sides and screwed). These side frame 2, crown 6 part, bed 5 are provided with screw holes 26, 27, 28, 29 for suspension at required positions, and if necessary, a lifting tool is screwed on at a factory or installation site with a crane or the like. It can be hung and assembled.
[0017]
As shown in FIGS. 1 and 4, the press device 1 formed in this manner is provided with the lower die 30 attached to the bed 5, the upper die 31 attached to the slide 12, and particularly the four corners of the lower die 30. A sufficiently rigid upper mold raising / lowering guide shaft 32 is vertically suspended from the upper part, and a sufficiently rigid upper mold raising / lowering guide cylinder 33 is provided at the four corners of the upper mold 31 to guide the upper mold raising / lowering guide. The upper mold elevating guide cylinder 33 is fitted to the upper mold elevating guide shaft 32 without the elevating guide of the slide 10 disposed on the side frame 2 described above. Thus, sizing of molded products can be performed with high accuracy.
[0018]
【Example】
FIG. 1 and subsequent figures show an embodiment of the present invention. As shown in FIG. 2, the pressing device 1 is formed by superposing two general structural steel products of the outer frame 13 and the inner frame 14 on the side frames 2 of the frames on both sides thereof, and the inner peripheral portion of the opening 3. The outer periphery is integrally formed by welding.
[0019]
The above-described outer frame 13 has a uniform thickness of 1300 mm width, 2470 mm height, and 95 mm, and has a rounded corner opening 680 mm × 1560 mm. The inner frame 14 is also 1300 mm wide and 2470 mm high, with a corner 680 mm × 1560 mm opening 3, and the upper and lower 400-500 mm are the same width as the outer frame 11 as shown in FIG. The central portion has a width of 70 mm, and gradually narrows in an oblique manner from the upper and lower side end portions to the central narrow portion. The inner frame 14 has an upper portion of 35 mm, a central portion of 30 mm, and a lower portion of 65 mm, and the outer peripheral portion and the inner peripheral portion are integrally welded and joined to the outer frame 13.
[0020]
Then, as shown in FIG. 3, the crown 6 portion and the bed 5 formed into an integral block shape are inserted into the side frames 2 on both sides and the bolts 9, 10 are inserted into the bolt insertion holes 34, 35 of the side frame 2 as shown in FIG. Is inserted into the side frame 2 and firmly joined. Further, as shown in FIGS. 1 and 3, tie rods 8 are erected on the upper and lower sides of the side frames 2 on both sides (a collar 21 and a spacer 22 are inserted in the crown 6), and bolts 24 are inserted and tightened to tighten the side frames. 2 can be coupled in parallel to form the pressing device 1.
[0021]
In particular, since the tie rod insertion hole 23 is recessed in the inner side of the side frame 2 and the end of the tie rod 8 is inserted, the side frames 2 on both sides can be easily assembled in parallel with good positional accuracy. Since the 6 parts and the bed 5 are also coupled by inserting the bolts 9 and 10 into the side frame 2, they can be mounted with high positional accuracy.
[0022]
As shown in FIG. 2, the stress distribution of the side frame 2 with respect to the required press load of the press apparatus 1 assembled in this way is made substantially uniform. For a molded product such as sizing, sufficient strength is required in the vertical direction of the slide 12 in the press molding direction, but not much strength is required in the parallel direction of the slide 12. As a side frame 2 made of steel having a sufficient strength, the apparatus can be made as light as possible so as to be able to cope with a required press, and can be easily assembled.
[0023]
In addition, as described above, it is sufficient to provide the four corners of the upper mold 31 as shown in FIG. 1 and FIG. A rigid upper die raising / lowering guide cylinder 33 is used so as to face the upper die raising / lowering guide shaft 32, and the upper die raising / lowering guide shaft 32 is attached to the upper die raising / lowering guide shaft 32. By pressing 33 and moving up and down, press molding such as sizing can be performed with high accuracy.
[0024]
In the above description, the hydraulic press is described, but the same applies to a mechanical press.
[0025]
【The invention's effect】
As described above, according to the present invention, a steel material having a predetermined thickness is processed and formed into an open state as a side frame of a press device, and a bed and a crown are engaged between both side frames provided with the opening. Since it is formed to stop, a space-saving press device can be easily assembled and realized.
[0026]
Further, the opening portion provided side frame is welded joint by overlapping outer frame and an inner frame having a predetermined thickness steel, heavy I combined side frame with respect to load during pressing is uniform shaped stress The upper part on the crown side of the press device and the lower part on the bed side are the same width as the outer frame as the inner frame to be overlapped so as to be distributed, and the middle between the upper part on the crown side and the lower part on the bed side By forming the outer peripheral frame gradually narrower toward the part side, the side frame on which the steel plates provided with openings are superimposed on the load during pressing can be made to have a uniform stress distribution, It is a lightweight press machine that has sufficient strength in the vertical direction of the slide in the press molding direction.
[0027]
And, as the steel plate of the inner frame to be overlapped with the outer frame, the lower part that becomes the bed side of the press device is the thickest, the middle part that becomes the mold installation part of the press device is the thinnest, and the upper part that becomes the crown side is somewhat By welding and joining to the outer frame as a thick shape, the side frame on which the steel plates with openings are overlapped against the load during pressing can be made to have a uniform stress distribution, especially molded products such as sizing With regard to the steel material having sufficient strength in the press direction, it is possible to require sufficient strength in the vertical direction of the slide in the press molding direction but not in the parallel direction of the slide. As a side frame, it can be made as light as possible so that it can handle the required press, and can be easily assembled.
[0028]
Since the crown and bed are each formed into an integral block shape, the number of parts can be reduced as much as possible, and bolts are inserted into bolt insertion holes opened at predetermined positions on the upper and lower sides of the side plates on both sides. Threaded into the screw holes for connecting the bolts on the bed, and then inserted into each of the tie rod insertion holes opened at the upper and lower positions of the side plates on both sides through the tie rods with bolts or nuts. Since the press device is assembled by fastening the side plates on both sides, depending on the molded product, sufficient strength is required in the vertical direction of the slide in the press molding direction, but excessive strength is not required in the parallel direction of the slide. In this case, the press device can be reduced in weight and cost, and the press device can be easily combined and assembled in a short time.
[0029]
Furthermore, each component such as the side plate, crown, bed, bolt, tie rod, etc. of the press device is transported to the installation site, and the press device is assembled at the installation site. The components can be transported to the installation site, can be easily transported, and can be easily assembled at the installation site.
[Brief description of the drawings]
FIG. 1 is a perspective view for explaining an embodiment of the present invention,
FIG. 2 is an explanatory diagram of overlapping of side frames and an explanatory diagram of stress distribution applied to the side frames,
FIG. 3 is an exploded perspective view of the above,
FIG. 4 is a front view (a) and a side view (b) of the above.
FIGS. 5A and 5B are explanatory views (a), (b), and (c) of a coupling state of the crown part and the bed part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Press apparatus 2 ... Side frame 3 ... Opening part 5 ... Bed 6 ... Crown part 7 ... Pressure cylinder 12 ... Slide 13 ... Outer frame 14 ... Inner frame

Claims (4)

As a side frame of the press device, a steel material having a predetermined thickness is processed and formed in an open state, and the bed and the crown are formed between both side frames provided with the opening ,
It is welded joining the side frame provided with the opening superimposed outer frame and an inner frame having a predetermined thickness steel, and weight it combined side frame is uniformly shaped stress distribution to the load during the press The upper part on the crown side of the press device and the lower part on the bed side have the same width as the outer frame, and the middle part side between the upper part on the crown side and the lower part on the bed side. A steel plate frame pressing device, characterized in that the outer peripheral frames are gradually narrowed toward each other . As the steel plate of the inner frame that overlaps with the outer frame, the lower part on the bed side of the press device is the thickest, the middle part that is the mold installation part of the press device is the thinnest, and the upper part that is the crown side of the press device is slightly thicker The press apparatus of the steel plate frame of Claim 1 welded and joined to the outer frame as a shape . The crown and bed are each formed into an integral block shape, and bolts are inserted into bolt insertion holes opened at predetermined positions on the upper and lower sides of the side plates on both sides. Each tie rod is inserted into a tie rod insertion hole opened at a predetermined position on the upper and lower sides of both side plates, and the side plates on both sides are tightened with bolts or nuts via tie rods. The steel plate frame pressing apparatus according to claim 1 or 2 , wherein the pressing apparatus is assembled. 4. The pressing device for a steel plate frame according to claim 3 , wherein each component such as a side plate, a crown, a bed, a bolt, and a tie rod of the pressing device is transported to an installation site, and the pressing device is assembled at the installation site.

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