RU104506U1 - PRESS FOR MANUFACTURING BEND-GLUED Billets - Google Patents

Abstract

 1. Press for the manufacture of bent-glued blanks containing a punch, a die and a drive for vertical movement of the punch, characterized in that the punch and die are each made in the form of a metal hollow half cylinder with elongated vertically oriented sections of the side surface, while the press is equipped with a removable matrix the working body on which the indicated punch and the drive of its vertical movement are located. ! 2. The press according to claim 1, characterized in that the removable working body is made in the form of a supporting beam, in the central part of which the drive of vertical movement of the punch is rigidly fixed, and its ends are fixed in the support posts intended for installation on the matrix, and between the support posts guides for vertical movement of the punch are fixed at the ends of the carrier beam, while guide rails are located on the outer surface of the ends of the punch, and guides for the punch on the inner surface of the ends of the matrix. ! 3. The press according to claim 1, characterized in that the punch is equipped with a clamp of the package of blanks in the form of a metal pipe of rectangular cross section, mounted under the punch with the possibility of vertical movement, and a recess is made on the inner surface of the matrix, the dimensions of which are consistent with the dimensions of the specified clamp. ! 4. The press according to claim 1, characterized in that the metal hollow half-cylinders of the punch and the die are perforated, in addition, the punch and the die are provided with air ducts, the punch is equipped with a cover, and the die is provided with a casing.

Description

The utility model relates to the field of construction production and is intended primarily for pressing bent-glued wooden or composite billets with a spiral direction of transverse fibers. These blanks are intended for the manufacture of supporting structures for curved sections of spiral-spiral staircases (for example, of the “Zvyagintsev Staircase” type of patent No. 98777 for application No. 201111047/03 of 03.23.2010), including support beams and support blocks, as well as for handrails of spiral staircases and other spiral spiral products.

In addition, the proposed design can be used for pressing bent-glued wooden or composite billets with a radial direction of the transverse fibers used for the manufacture of arched products such as arched, etc. constructions.

In the manufacture of spiral-helical and arc-shaped products, workpieces are required that have a predetermined bending radius and an angle of radius bending, which can be equal to or less than 180 degrees. Parts made from blanks can dock with other structural elements of the product. Therefore, the presence of elongated rectilinear lateral sections in the blanks expands the possibilities of subsequent joining of parts with other structural elements.

Known designs do not provide these bent-glued blanks.

A device for the manufacture of bent-glued blocks containing a frame on which the matrix, punch and drive are movably mounted (SU 1065192, IPC B27H 1/00, 1984). A disadvantage of the known press is the design complexity and the inability to obtain bent-glued blanks that meet the necessary requirements.

Also known is the closest in the set of essential features to the claimed utility model press for the manufacture of bent-glued blanks, containing a housing in which the punch and die and the drive for vertical movement of the punch are placed (Kostrikov P.V. Production of bent furniture. Moscow, Timber industry, 1984 city, pp. 86-87, Fig. 35). The disadvantages of the known press include the complexity of the design. Massive body and mold make the structure heavier, which makes it difficult to manufacture in the conditions of an enterprise for the manufacture of metal structures. Pressing bent-glued workpieces used in the manufacture of supporting structures for curved sections of spiral-spiral staircases on a well-known press is impossible, since the press body limits the length of the workpiece, and therefore its radius.

The problem to which the claimed utility model is directed is to create a press structure that is easy to manufacture and use, which makes it possible to obtain bent-glued blanks, including those with elongated rectilinear lateral sections used in the manufacture of spiral-helical and arcuate products.

To solve this problem, a press was used containing a punch, a die and a drive for vertical movement of the punch. What is new is that the punch and die are each made in the form of a metal hollow half cylinder with elongated vertically oriented sections of the side surface.

It is also new that the press is equipped with a removable working body mounted on the matrix, on which the indicated punch and the drive for its vertical movement are located.

In addition, the removable working body is made in the form of a carrier beam, in the central part of which the drive of vertical movement of the punch is rigidly fixed. The ends of the carrier beam are fixed in the support posts intended for installation on the matrix, and guides for vertical movement of the punch are fixed between the support posts at the ends of the carrier beam. On the outer surface of the ends of the punch, guide rails are located, and on the inner surface of the ends of the matrix, there are guides for the punch.

In addition, the punch is equipped with a latch package of blanks, which is made in the form of a metal pipe of rectangular cross section, installed under the punch with the possibility of vertical movement. A recess is made on the inner surface of the matrix, the dimensions of which are consistent with the dimensions of the specified retainer.

In addition, the metal hollow half-cylinder of the punch and die are perforated. The punch and die are provided with air ducts. The punch is also equipped with a cover, and the matrix with a casing.

The presence in the proposed design of a removable working body mounted on the matrix and the placement of the punch on it and the drive for its vertical movement, as well as the implementation of the punch and the matrix in the form of metal hollow half-cylinders, made it possible to simplify the design and abandon the bulky casing, punch and matrix.

The implementation of the punch and the matrix in the form of metal hollow half-cylinders with elongated vertically oriented sections of the side surface allows you to produce workpieces with elongated side sections for subsequent joining of parts made from these blanks with other structural elements.

The implementation of the working body removable allows you to use it on another pair of punch and matrix, which simplifies the design.

The presence of the clamp package layers of the workpiece provides the necessary position of the layers of the package during pressing.

Performing perforated metal hollow half cylinders of the punch and die ensures the outflow of evaporating moisture from the pressed workpiece.

The presence of the casing of the matrix, the cover of the punch and air ducts provide adjustment of the required temperature.

The whole set of features of the proposed technical solution provides a technical result: the creation of a simple compact and technological design of the press, which allows you to get bent-glued blanks, including with elongated rectilinear side sections, used for the subsequent manufacture of spiral-helical and arcuate products.

Figure 1 - shows a General view of the proposed press;

figure 2 is a cross section of the press in working condition;

figure 3 - removable working body;

4 - punch;

figure 5 - matrix;

figure 6 - punch with extruded billet for stairs, top view;

Fig.7 - matrix with extruded billet for stairs, top view.

in Fig: 8 - matrix with a pressed blank for arches, top view.

Press for the manufacture of bent-glued blanks contains a removable working body 1, the punch 2 and the matrix 3 (figure 1).

The removable working body 1 consists of a hydraulic cylinder 4, rigidly fixed in the central part of the carrier beam 5, support struts 6, in which the ends of the carrier beam 5 and the guides 7 are fixed for vertical movement of the punch 2 (figure 2, 3).

The punch 2 consists of a metal hollow half cylinder 8 having elongated vertically oriented sections 9 of the side surface (Fig.2, 4). On the outer surface of the ends 10 of the half cylinder 8 are guide rails 11, which are installed in the guides 7 of the removable working body 1 (Fig.2, 4). In the middle of the open part of the half cylinder 8 there is a supporting jumper 12, on which the eyelets 13 of the rod of the hydraulic cylinder 4 are fixed (FIGS. 2, 4). On the flange 14 of the half cylinder 8 is a cover 15, in which the air ducts 16 are installed (figure 4). Under the punch 2 on the tie rods 17 passing inside the guide rails 11, there is a latch 18 of the package of layers of blanks (figure 2, 4).

Matrix 3 consists of a metal hollow half cylinder 19 having elongated vertically oriented sections 20 of the side surface and flanging 21 (Fig.2, 5).

On the inner surface of the ends 22 of the half-cylinder 19 are guides 23 for moving the guide rails 11 of the punch 2 (figure 5). On the inner surface of the matrix 3, a recess 24 is made, the dimensions of which are consistent with the dimensions of the latch 18. The matrix 3 is placed in the casing 25 and is equipped with air ducts 26 (Fig.2, 5).

A removable working body is installed on the flanging 21 of the end face of the matrix 3 (Fig.1, 2) and is attached to it with bolts (not shown). The metal hollow half cylinders of the punch 2 and the matrix 3 are made perforated (Fig.6 and 7). Air ducts 16 and 26 are intended for ventilation of the cavities of metal half-cylinders 8 and 19.

The dimensions of the punch 2 and the matrix 3 are selected based on the required dimensions of the manufactured blanks.

Pressing bent-glued composite billets for the stairs, with the spiral direction of the transverse fibers with an angle of radius of bending equal to 180 ° and with elongated rectilinear side sections is as follows. When the punch 2 is raised to the upper position and lowered to the flanging level 21 of the matrix 3, the latch 18 on the matrix 3 and the latch 18 are laid at a given angle, a previously prepared, payload layer 27 in the form of lamellas (Fig. 7).

Then, glue is applied to the specified layer and the binder composite layer 28 is laid in the form of veneer, thin plywood, or other woven or non-woven material compatible with wood glue, with the direction of the fibers of the binder layer along the axis of the press (Fig.6). The binder composite layer 28 prevents the workpieces from creeping from spilling during the operation of the press and gives them additional strength.

Then the composite layer is glued and the process of layer-by-layer laying of the bearing and composite layers is repeated until the estimated thickness of the package of layers of the workpiece 29 is set, after which the clamp is pressed against the punch 2 using the clamping pins 17 and then using the hydraulic cylinder 4, taking into account the own weight of the punch 2, bending the package of layers of the workpiece 29 (figure 2).

After reaching the calculated compression force of the glued and bent workpiece 29, the punch 2 and the matrix 3 are fastened together by any known method (not shown), and the hydraulic cylinder 4 is released from the load.

Next, in the cavity of the punch 2 and the matrix 3, air is heated to the set temperature to dry the workpiece in accordance with technological standards. Adjusting the supply of hot air to the punch 2 and the matrix 3 is made by alternately connecting flexible hoses to the ducts 16 and 26 (not shown).

After drying of the finished workpiece 29, the punch 2 is removed from the matrix 3. The tie rods 17 are released, the latch 18 is removed. Then, by turning about the axis of the punch 2, the finished workpiece 29 is removed from the press.

On Fig shows a die with a pressed blank for arcuate products.

The proposed design of the press is simple, as a result of which it is possible to manufacture it, for example, at enterprises for the manufacture of building metal structures, etc., and provides bent-glued blanks used for the subsequent manufacture of spiral-helical and arc-shaped products from them.

Claims (4)

1. Press for the manufacture of bent-glued blanks containing a punch, a die and a drive for vertical movement of the punch, characterized in that the punch and die are each made in the form of a metal hollow half cylinder with elongated vertically oriented sections of the side surface, while the press is equipped with a removable matrix the working body on which the indicated punch and the drive of its vertical movement are located. 2. The press according to claim 1, characterized in that the removable working body is made in the form of a supporting beam, in the central part of which the drive of vertical movement of the punch is rigidly fixed, and its ends are fixed in the support posts intended for installation on the matrix, and between the support posts guides for vertical movement of the punch are fixed at the ends of the carrier beam, while guide rails are located on the outer surface of the ends of the punch, and guides for the punch on the inner surface of the ends of the matrix. 3. The press according to claim 1, characterized in that the punch is equipped with a clamp of the package of blanks in the form of a metal pipe of rectangular cross section, mounted under the punch with the possibility of vertical movement, and a recess is made on the inner surface of the matrix, the dimensions of which are consistent with the dimensions of the specified clamp. 4. The press according to claim 1, characterized in that the metal hollow half-cylinders of the punch and the die are perforated, in addition, the punch and the die are provided with air ducts, the punch is equipped with a cover, and the die is provided with a casing.