CN220409091U - Mould for producing V-shaped plywood - Google Patents

Abstract

The utility model discloses a die for producing V-shaped plywood, which relates to a die, and comprises an upper die and a lower die; a V-shaped pressing cavity is arranged between the upper die and the lower die, and the upper die is fixedly arranged at the tail end of an upper hydraulic cylinder in the machine tool; the lower die comprises a die body I, a die body II and a die body III; the die body II is fixed on a machine tool, a V inflection point of the V-shaped pressing cavity is located on the die body II, the die body I and the die body III are respectively arranged on two sides of the die body II, the die body I and the die body III are fixedly installed at the tail end of a lower hydraulic cylinder of the machine tool, ejector pins are inserted into the die body I and the die body III, and the ejector pins are fixedly installed on the machine tool. The utility model solves the problems of easy deformation and plate core separation caused by supporting the two sides of the V-shaped plywood by the ejector pins in the related technology, improves the stability of supporting the V-shaped plywood and is beneficial to improving the quality of the V-shaped plywood.

Description

Mould for producing V-shaped plywood

Technical Field

The present utility model relates to a mold, and more particularly, to a mold for producing V-shaped plywood.

Background

Plywood is one of the common materials for furniture, is an artificial board and is made of multiple layers of thin plates. After the glue is applied between the plates, the plate blanks formed by longitudinally and transversely intersecting the wood grain direction of the plates are pressed together under the condition of high temperature and high pressure. With the change of the demand, the demand for V-shaped plywood is already present in the existing places, for example, in customized high-grade furniture, the traditional splicing mode at the corners is replaced by integrally formed V-shaped boards. Or in the template of post in the building engineering, adopt V type plywood to build the post mould not only efficient, and stability is better moreover. Therefore, the V-shaped plywood has wide market prospect. The V-shaped plywood is produced by utilizing the characteristic that wood fibers in the board become soft and are easy to bend under the condition of high humidity and heat. Firstly, carrying out V-shaped molding on the plate core under the condition of high humidity and heat, and placing the plate core in a V-shaped bracket for drying after molding, thus obtaining the V-shaped plate core. When the V-shaped plywood is produced, only a process for producing the traditional plane plywood is needed, and the glued V-shaped plywood is placed in a die with a V-shaped cavity for high-pressure lamination. When the V-shaped plywood is taken out, the V-shaped plywood can be taken out by jacking the thimble in the die. However, due to the structural problem of the V-plywood, the stress points thereof are located at both sides of the V-plywood when the ejector pins eject the V-plywood, and the lowest position thereof (i.e., V-inflection point) is unsupported. Therefore, the two sides of the V-shaped plywood are easy to draw together towards the middle, the V-shaped plywood is deformed, the board cores are separated, and the defective products are more.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a die for producing V-shaped plywood aiming at the defects of the prior art, and improves the stability of supporting the V-shaped plywood.

The utility model relates to a die for producing V-shaped plywood, which comprises an upper die and a lower die; a V-shaped pressing cavity is arranged between the upper die and the lower die, and the upper die is fixedly arranged at the tail end of an upper hydraulic cylinder in the machine tool; the lower die comprises a die body I, a die body II and a die body III; the die body II is fixed on a machine tool, a V inflection point of the V-shaped pressing cavity is located on the die body II, the die body I and the die body III are respectively arranged on two sides of the die body II, the die body I and the die body III are fixedly installed at the tail end of a lower hydraulic cylinder of the machine tool, ejector pins are inserted into the die body I and the die body III, and the ejector pins are fixedly installed on the machine tool.

Further, the first die body and the third die body are fixedly arranged on a supporting plate together, and the supporting plate is fixedly arranged at the tail end of the lower hydraulic cylinder; the support plate is provided with a through groove matched with the die body, the second die body is movably inserted into the through groove, the support plate is provided with a through hole matched with the thimble, and the thimble is movably inserted into the through hole.

Further, the first die body and the third die body are symmetrically arranged on two sides of the second die body.

Further, a supporting seat is detachably arranged below the second die body, and the supporting seat is fixed on the machine tool.

Further, a flange plate is arranged at the end part of the second die body, bolts are inserted into flange holes of the flange plate, and the bolts are screwed into the supporting seat.

Advantageous effects

The utility model has the advantages that: the lower die is split into three die bodies, the V inflection point of the V-shaped pressing cavity is arranged in the second die body, and the two sides of the V-shaped plywood and the V inflection point are supported through the joint supporting action of the second die body and the ejector pins, so that the problems that the ejector pins only support the two sides of the V-shaped plywood in the related technology, so that the V-shaped plywood is easy to deform and separate from a plate core are solved, the stability of the V-shaped plywood is improved, and the quality of the V-shaped plywood is improved.

Drawings

FIG. 1 is a schematic top view of a mold according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a mold according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the die body of the present utility model separated from the V-shaped plywood.

Wherein: 1-upper die, 2-upper hydraulic cylinder, 3-die body I, 4-die body II, 5-die body III, 6-lower hydraulic cylinder, 7-supporting plate, 8-supporting seat, 9-bolt, 10-needle, 11-through groove, 12-V-shaped plywood and 13-V-shaped pressing cavity.

Detailed Description

The utility model is further described below in connection with the examples, which are not to be construed as limiting the utility model in any way, but rather as falling within the scope of the claims.

Referring to fig. 1 to 3, a mold for producing V-shaped plywood according to the present utility model includes an upper mold 1 and a lower mold. A V-shaped pressing cavity 13 is arranged between the upper die 1 and the lower die, and the upper die 1 is fixedly arranged at the tail end of an upper hydraulic cylinder 2 in a machine tool so as to realize lifting of the upper die 1. The lower die comprises a die body I3, a die body II 4 and a die body III 5. The second die body 4 is fixed on the machine tool, the V inflection point of the V-shaped pressing cavity 13 is located on the second die body 4, the first die body 3 and the third die body 5 are respectively arranged on two sides of the second die body 4, the first die body 3 and the third die body 5 are fixedly mounted at the tail end of the lower hydraulic cylinder 6 of the machine tool, the first die body 3 and the third die body 5 are respectively inserted with a thimble 10, and the thimble 10 is fixedly mounted on the machine tool. Because the die body II 4 is fixedly arranged, the die body I3 and the die body III 5 positioned at the two sides of the die body II can be lifted through the driving action of the lower hydraulic cylinder 6, the die body II 4 can support the V inflection point of the pressed V-shaped plywood 12, so that the problems that the thimble 10 only supports the two sides of the V-shaped plywood 12 to cause easy deformation and board core separation in the related art are solved, and the quality of the V-shaped plywood 12 is improved.

In this embodiment, the first die body 3 and the third die body 5 are fixedly mounted on a support plate 7, and the support plate 7 is fixedly mounted at the end of the lower hydraulic cylinder 6. The support plate 7 is provided with a through groove 11 matched with the second die body 4, the second die body 4 is movably inserted into the through groove 11, the support plate 7 is provided with a through hole matched with the thimble 10, and the thimble 10 is movably inserted into the through hole. Namely, the second die body 4 and the thimble 10 form a guiding function on the supporting plate 7, so that the supporting plate 7, the first die body 3 and the third die body 5 can move more stably when the lower hydraulic cylinder 6 drives the supporting plate 7, the first die body 3 and the third die body 5 to lift.

The first die body 3 and the third die body 5 are symmetrically arranged on two sides of the second die body 4, and the first die body 3 and the third die body 5 are attached to the side wall of the second die body 4 to form sliding contact. Such a design avoids damaging the integrity of the mould and ensures a press fit against the V-plywood 12.

In actual production, a certain arc angle needs to be reserved at the V inflection point of the V-shaped plywood 12 due to the process defect, and the size of the arc angle can be changed according to the requirement. In order to facilitate changing different arc angles, the second die body 4 is arranged to be detachable, and the change of the arc angles is realized by integrally replacing the second die body 4. Specifically, the end of the second die body 4 is provided with a flange, a bolt 9 is inserted into a flange hole of the flange, the bolt 9 is screwed into a supporting seat 8, and the supporting seat 8 is fixed on the machine tool. When the arc angle is required to be changed, the original second die body 4 on the machine tool is only required to be disassembled, and then the second die body 4 with the corresponding arc angle is installed, so that the operation is simple and convenient.

The working principle of the utility model is as follows: and laminating a plurality of glued V-shaped plate cores on the lower die, and then starting the upper hydraulic cylinder 2 to drive the upper die 1 to descend and press the V-shaped plate cores, so that the production of the V-shaped plywood 12 is realized. After the lamination is finished, the upper die 1 is lifted to be separated from the V-shaped plywood 12, and then the lower hydraulic cylinder 6 is started to drive the supporting plate 7, the die body I3 and the die body III 5 to descend, so that the die body I3, the die body III 5 and the V-shaped plywood 12 are separated, and the stability of supporting the V-shaped plywood 12 is improved through supporting the V-shaped plywood 12 together by the ejector pin 10 and the die body II 4.

While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims (5)

1. The die for producing the V-shaped plywood is characterized by comprising an upper die (1) and a lower die; a V-shaped pressing cavity (13) is arranged between the upper die (1) and the lower die, and the upper die (1) is fixedly arranged at the tail end of an upper hydraulic cylinder (2) in the machine tool; the lower die comprises a die body I (3), a die body II (4) and a die body III (5); the die body II (4) is fixed on a machine tool, a V inflection point of the V-shaped pressing cavity (13) is located on the die body II (4), the die body I (3) and the die body III (5) are respectively arranged on two sides of the die body II (4), the die body I (3) and the die body III (5) are fixedly arranged at the tail end of a lower hydraulic cylinder (6) of the machine tool, ejector pins (10) are respectively inserted in the die body I (3) and the die body III (5), and the ejector pins (10) are fixedly arranged on the machine tool.

2. A mould for producing V-plywood according to claim 1, characterized in that the mould body one (3) and the mould body three (5) are together fixedly mounted on a support plate (7), the support plate (7) being fixedly mounted at the end of the lower hydraulic cylinder (6); the support plate (7) is provided with a through groove (11) matched with the second die body (4), the second die body (4) is movably inserted into the through groove (11), the support plate (7) is provided with a through hole matched with the thimble (10), and the thimble (10) is movably inserted into the through hole.

3. A mould for producing V-plywood according to claim 1 or 2, characterized in that the mould body one (3) and the mould body three (5) are symmetrically arranged on both sides of the mould body two (4).

4. A mould for producing V-plywood according to claim 1, characterised in that a support seat (8) is detachably mounted below the mould body two (4), said support seat (8) being fixed to the machine tool.

5. The die for producing V-shaped plywood according to claim 4, wherein a flange plate is arranged at the end part of the die body II (4), bolts (9) are inserted into flange holes of the flange plate, and the bolts (9) are screwed into the supporting seat (8).