CN101380762A

CN101380762A - Heat press plate for hot press

Info

Publication number: CN101380762A
Application number: CNA2008101577491A
Authority: CN
Inventors: 葛茂胜; 冯国征; 段会咏
Original assignee: WEIFANG PHENIX PAPER CO Ltd
Current assignee: WEIFANG PHENIX PAPER CO Ltd
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2009-03-11

Abstract

The present invention discloses a hot pressboard used in a hot-press. The hot pressboard comprises a board body. A drainage which drains moisture in wet plate to the outside of the board body is arranged in the board body. Concretely, the hot pressboard is provided with a drainage passage at the inside, and a drain hole is arranged between the drainage passage and a working face of the board body, thereby reducing the dehydrating distance, ensuring that the board surface is dehydrated uniformly and that the moisture in the wet plate is drained uniformly during the hot pressing process, and the board has flat surface, causes no warp and is not required the preserving procedure. The hot pressboard saves time and work and improves the production efficiency.

Description

Heat press plate for hot press

Technical field

The present invention relates to the heating platen that a kind of hot press is used.

Background technology

The heating platen of hot press is the main element in one of eleatrical insulating board, medium density fibre board (MDF), the particieboard production capital equipment hot press, and is general more than 10 layers, and heating platen effect one is that certain moisture content is sloughed in the pressurization of the wet panel between heating platen and the heating platen; The 2nd, utilize the thermal cycle passage heating in the heating platen, the wet panel oven dry is reached technological requirement.Because of the heating platen work area is big, moisture is got rid of inhomogeneously in hot pressing, and normally the peripheral draining of sheet material is fast, water content is low, can not fully dewater in the middle of the sheet material, water content is big, and it is inhomogeneous to cause sheet material to contain moisture, plate surface out-of-flatness after the hot pressing, produce warpage, need back wet health, again operation such as press polish, time-consuming taking a lot of work, and quality instability.

Summary of the invention

Technical problem to be solved by this invention is: a kind of heat press plate for hot press is provided, guarantees that moisture is evenly got rid of in the wet panel, make the plate surface of production smooth, do not have warpage, need not back wet health, operation such as press polish again, steady quality.

For solving the problems of the technologies described above, technical scheme of the present invention is: heat press plate for hot press, comprise plate body, be provided with the thermal cycle passage that is used for the wet panel between plate body is carried out heating, drying in the described plate body, on described plate body, be provided with the drainage arrangement that the moisture in the wet panel is discharged to the plate body outside nearby.

As a kind of optimized technical scheme, described drainage arrangement comprises the drainage channel that is arranged in the described plate body, is provided with osculum between the working face of described drainage channel and described plate body.

As a kind of optimized technical scheme, the stopple of band discharge outlet is installed on the described osculum.

As a kind of optimized technical scheme, the discharge outlet of described stopple is the seam shape.

After having adopted technique scheme, the invention has the beneficial effects as follows: on the heating platen of hot press, be provided with the drainage arrangement that the moisture in the wet panel is discharged to the plate body outside nearby, be specially and in heating platen, be provided with drainage channel, between the working face of drainage channel and plate body osculum is set, in the hot pressing, moisture in the sheet material can be discharged by drainage channel through osculum, reduced the dehydration distance, make plate emaciated face water even, can guarantee that in hot pressing moisture is evenly got rid of in the wet panel, plate surface is smooth, can not produce warpage, need not the health operation, production efficiency has been improved in the time and labour saving.

Description of drawings

Fig. 1 is the cutaway view of the present invention along the working face direction;

Fig. 2 is the enlarged drawing of the transverse sectional view of middle drainage arrangement embodiment illustrated in fig. 1;

Fig. 3 is the vertical view of stopple among Fig. 2.

The specific embodiment

As shown in Figure 1, a kind of heat press plate for hot press, comprise plate body 1, be provided with thermal cycle passage 2 in the plate body 1, thermal cycle passage 2 extends along the working face direction of plate body, thermal cycle passage 2 inside can feed superheated water, conduction oil or high-temperature steam, are used for the wet panel of 1 of plate body is heated, and the wet panel oven dry is reached technological requirement.

Shown in Fig. 1, Fig. 2 and Fig. 3 are common, on plate body 1, be provided with the drainage arrangement that the moisture in the wet panel is discharged to plate body 1 outside nearby, drainage arrangement comprises the drainage channel 4 that is arranged in the plate body 1, drainage channel 4 extends along the working face direction of plate body 1, and parallel with the bearing of trend of thermal cycle passage 2.Be provided with osculum 3 between the working face of drainage channel 4 and plate body 1, the stopple 5 of mounting strap discharge outlet 6 on the osculum 3, stopple 5 is made for steel, and stopple 5 is welded on the plate body 1.Discharge outlet 6 is the slit shape, prevents because of osculum 3 drainage areas excessively, makes plate surface and osculum 1 contact portion projection, sheet material out-of-flatness occur in hot pressing; And discharge outlet 6 is set to the slit shape and is difficult for stopping up, and is easy to clean.Certainly also osculum 3 can be machined directly to little circular hole, need not to install again stopple 5.

Drainage channel 4 links to each other with air-introduced machine, in hot pressing, air-introduced machine is extracted air in the drainage channel 4 out, form negative pressure, water and steam that wet panel between the plate body 1 is produced in hot pressing, enter in the drainage channel 4 by discharge outlet 6, and then be discharged to plate body 1 outside, drainage channel 4 evenly is arranged on the plate body 1, the dehydration distance is reduced, plate emaciated face water is even, makes the plate surface after the hot pressing smooth, does not have warpage, need not to return again wet health, operation such as press polish again, reduced operating procedure, production efficiency has been improved in the time and labour saving.

During production, on the working face of heating platen outside the coating stainless steel net, the working face of heating platen is not directly contacted with plate surface, thus alleviate negative pressure at discharge outlet 6 places the suction to cardboard, make cardboard more smooth in hot pressing.

Claims

1. heat press plate for hot press, comprise plate body (1), be provided with the thermal cycle passage (2) that is used for the wet panel between described plate body (1) is carried out heating, drying in the described plate body (1), it is characterized in that: on described plate body (1), be provided with the moisture in the wet panel is discharged to the outside drainage arrangement of plate body (1) nearby.

2. heat press plate for hot press as claimed in claim 1 is characterized in that: described drainage arrangement comprises the drainage channel (4) that is arranged in the described plate body (1), is provided with osculum (3) between the working face of described drainage channel (4) and described plate body (1).

3. heat press plate for hot press as claimed in claim 2 is characterized in that: the stopple (5) that band discharge outlet (6) is installed on the described osculum (3).

4. heat press plate for hot press as claimed in claim 3 is characterized in that: the discharge outlet (6) of described stopple (5) is the seam shape.

5. as described any heat press plate for hot press of claim 1 to 3, it is characterized in that: described thermal cycle passage (2) extends along the working face direction of described plate body (1).

6. heat press plate for hot press as claimed in claim 5 is characterized in that: described drainage channel (4) extends along the working face direction of described plate body (1).

7. heat press plate for hot press as claimed in claim 6 is characterized in that: the bearing of trend of described drainage channel (4) is parallel with the bearing of trend of described thermal cycle passage (2).