CN217514098U - Hot press inlet structure of artificial board - Google Patents

Abstract

The utility model relates to an wood-based plate production facility technical field discloses a hot press entry structure of wood-based plate, including a set of action wheel, a set of follow driving wheel and around establishing at the action wheel, from the last pressure steel band on the driving wheel, push down the steel band and locate the below of pushing up the steel band, push down and be equipped with the hot nip between the steel band, be close to the steel band that pushes down in the hot nip and be equipped with the slab conveyer belt, the most proximal distance is 15mm to 20mm between the tip top surface of slab conveyer belt and the push down steel band. The most proximal distance between the top surface of the end part of the slab conveyer belt and the pressing steel belt is 16 mm. The end part of the slab conveyer belt is provided with a support and a bearing wheel arranged on the support close to the downward pressing steel belt, and the slab conveyer belt is wound on the bearing wheel. The utility model discloses can improve the processingquality of hot press slab, improve the finished product quality of wood-based plate.

Description

Hot press inlet structure of artificial board

Technical Field

The utility model relates to an wood-based plate production facility technical field especially relates to a hot press entry structure of wood-based plate.

Background

The artificial board is a board or a molded product which is made by taking wood or other non-wood plants as raw materials, separating the raw materials into various unit materials through certain mechanical processing and then gluing the unit materials with or without adhesive and other additives. The plywood mainly comprises three major products such as plywood, wood shavings (particle boards), fiber boards and the like, and the extension products and the deep processing products of the plywood can reach hundreds of types. The birth of artificial boards marks the beginning of the modernization period of wood processing. In addition, the artificial board can also improve the comprehensive utilization rate of wood, and the artificial board with the volume of 1 cubic meter can replace 3-5 cubic meters of raw wood.

In the production process of the artificial board, continuous hot pressing needs to be carried out on the slab of the artificial board. With the increasing variety of artificial boards, the raw materials for producing shaving boards are also developing in a diversified direction. At the inlet of the hot press for the artificial boards, the slabs of the artificial boards are conveyed from the belt to the steel belt of the hot press. When the slab of the artificial board is conveyed to the steel belt of the hot press from the belt, various quality problems such as cracks, slab looseness and the like frequently occur at the inlet of the slab hot press, which directly influences the shaping of the slab, reduces the hot pressing quality of the slab and influences the finished product quality of the artificial board.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hot press entry structure of wood-based plate can improve the hot pressing quality of wood-based plate.

In order to realize above-mentioned purpose, the utility model provides a hot press entry structure of wood-based plate, including a set of action wheel, a set of follow driving wheel and around establishing at the action wheel, from the last steel band that pushes up of driving wheel, push down the steel band and locate the below of pushing up the steel band, push down and be equipped with the hot nip between the steel band, be close to the steel band that pushes down in the hot nip and be equipped with the slab conveyer belt, the tip top surface of slab conveyer belt and push down the distance of most near-end between the steel band be 15mm to 20 mm.

Preferably, the distance between the top surface of the end part of the slab conveyer belt and the nearest end part of the pressing steel belt is 16 mm.

As a preferred scheme, the end part of the slab conveying belt close to the downward pressing steel belt is provided with a support and a bearing wheel arranged on the support, and the slab conveying belt is wound on the bearing wheel.

As preferred scheme, the support includes the mounting bracket of linear type, is a plurality of mounts on the mounting bracket of linear type, is equipped with two fixed arms on the mount, and the tip of bearing the weight of the wheel rotates to be connected on the fixed arm.

Preferably, the diameter of the carrying wheel is 10mm to 16 mm.

Preferably, the diameter of the bearing wheel is 13 mm.

Preferably, the bearing wheel comprises a rotating shaft, an outer ring and a rolling body arranged between the rotating shaft and the outer ring, and the rotating shaft is connected to the fixed arm.

As preferred scheme, be equipped with the first fixed part of step form on the mounting bracket, be equipped with on the mount with first fixed part complex second fixed part, first fixed part passes through bolted connection with the second fixed part.

Preferably, the mounting rack is provided with 20 to 50 fixing racks.

Preferably, each fixing frame has a length of 10cm to 30 cm.

The utility model provides a hot press entry structure of wood-based plate, including a set of action wheel, a set of follow driving wheel and around establishing at the action wheel, follow the epaxial upward pressure steel band of driving, the steel band pushes down, the below of pushing down the steel band is located to the steel band pushes down, the upward pressure steel band, be equipped with the hot nip between the steel band pushes down, it is equipped with the slab conveyer belt to be close to the steel band that pushes down in the hot nip, the most proximal distance is 15mm to 20mm between the tip top surface of slab conveyer belt and the steel band that pushes down, distance through with the most proximal between the tip top surface of slab conveyer belt and the steel band that pushes down sets up to less value, the high drop on the steel band is reachd from the slab conveyer belt to the slab that pushes down has been reduced, the slab has been avoided the slab to take place the crackle in the hot press entrance, the bad phenomenon of pine scattering, make the hot press be fit for carry out the hot pressing to the wood-based plate of different materials, the product quality of artificial plate has been improved.

Drawings

Fig. 1 is a schematic structural view of a hot press inlet structure of an artificial board according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the inlet structure A of the artificial board of FIG. 1;

fig. 3 is a schematic perspective view of a bracket according to an embodiment of the present invention;

fig. 4 is a schematic front view of the bracket according to the embodiment of the present invention;

in the figure, 100, a driving wheel; 200. a driven wheel; 310. pressing a steel belt upwards; 320. pressing the steel belt; 330. a hot nip; 400. a slab conveyer belt; 410. a support; 411. a mounting frame; 412. A fixed mount; 413. a fixed arm; 420. a load-bearing wheel; 431. a first fixed part; 432. a second fixed part.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 to 4, the preferred embodiment of the present invention 1 provides a hot press inlet structure for artificial boards, which can avoid the cracking and loosening of artificial board slabs at the inlet of the hot press, and improve the production quality of artificial boards.

Based on the above technical solution, the embodiment provides a hot press inlet structure for artificial boards, which includes a set of driving wheel 100, a set of driven wheel 200, and an upper pressing steel belt 310 and a lower pressing steel belt 320 wound around the driving wheel 100 and the driven wheel 200, the driving wheel 100 and the driven wheel 200 can support a steel belt of a hot press, the upper pressing steel belt 310 and the lower pressing steel belt 320 rotate on the driving wheel 100 and the driven wheel 200 along with the driving wheel 100 and the driven wheel 200, and the artificial boards are hot-pressed through the upper pressing steel belt 310 and the lower pressing steel belt 320.

Specifically, the lower pressing steel belt 320 is arranged below the upper pressing steel belt 310, the driving wheel 100 and the driven wheel 200 are arranged in pairs, the upper pressing steel belt 310 is wound on the driving wheel 100 and the driven wheel 200 which are arranged in pairs, the lower pressing steel belt 320 is wound on the driving wheel 100 and the driven wheel 200 which are arranged in pairs, and the lower pressing steel belt 320 and the upper pressing steel belt 310 are matched with each other from the top and the bottom of the artificial board blank to carry out hot pressing on the artificial board.

Specifically, the driving wheel 100 and the driven wheel 200 are used for bearing steel strips of hot-pressed slabs, the driving wheel 100 can drive the steel strips to run on the driving wheel 100 and the driven wheel 200, and the driving wheel 100 is driven to rotate by a rotation driving device.

At present, the production process of the artificial board comprises the following steps:

1. the production of plywood is that the cooked and softened log is cut into large sheets, then the fiber directions of all the sheets are mutually vertical, and the sheets are bonded by synthetic resin glue with good water resistance, and then the sheets are pressed, dried, sawn and finished on the surface. The number of layers is odd, and is generally 3-13, which are called three-ply board, five-ply board, etc. The wood used for making plywood includes basswood, birch, water ash, beech, colored wood, eucalyptus, etc.

2. The production of fibreboard is carried out by crushing bark, wood shavings and tree branches, immersing, grinding into wood pulp, press-forming and drying. The molding temperature and pressure are different, so that the molding can be divided into three types, namely hard, semi-hard and soft.

3. Particle board production, boards pressed from wood shavings or wood fibre stock, with or without size applied. The shaving board has small density, uniform material, easy moisture absorption and low strength.

4. The production of the core-board is an artificial board made up by using leftover bits and pieces produced in the course of wood processing through the processes of shaping, planing, gluing, splicing and facing. The core board is made of short and dry wood strips, and the surface of the board is made of single-layer veneer or plywood. The core-board is not only an effective measure for comprehensively utilizing wood, but also the obtained board has uniform structure, stable size, larger breadth and larger thickness. The core-board can be used as a surface decoration and also as a structural material.

5. The raw materials used for producing other artificial boards, except for the plywood which needs raw wood, mostly come from remainders of felling and wood processing and small-diameter wood (the diameter of the wood is less than 8 cm), realize the production of the artificial boards. The flake, strip, needle and granular materials prepared by crushing or chipping the production raw materials and then crushing can be used for manufacturing the shaving board. The wood chips are defibrated and used for fiberboard manufacture. Therefore, the utilization rate of the wood can be improved by 20-25% compared with the traditional utilization mode. In the 70 s, the tree bark and wood dust are used as raw materials of artificial boards, but the tree bark can only be used in the middle layer of a shaving board, the using amount cannot exceed 8 percent, otherwise, the product strength is reduced. In addition, non-wood materials are also gaining increasing attention, and in addition to bagasse, hemp stalk, and the like, which have already been utilized in the production of artificial boards, they have been expanded to various plant stalks and seed husks.

In the production process of the artificial board, the hot press is one of the main devices in the production flow of the artificial board, and the hot press consists of a hot press body, a control driving part (a hydraulic system and an electric control system) and a heating system. In the production process of different artificial boards, the raw materials for producing the artificial boards are hot-pressed to form hot pressing and shaping for the artificial boards. It can be known from the above production processes of different types of artificial boards that the artificial boards have different fiber particle sizes and fiber lengths, so that the mechanical properties of the artificial boards in hot pressing are different due to the difference in fiber particle sizes and fiber lengths.

Specifically, the upper press steel belt 310 and the lower press steel belt 320 are steel belts for hot pressing a slab. The upper pressing steel belt 310 and the lower pressing steel belt 320 are both annular, and are directly contacted with the artificial board blank for hot pressing through the upper pressing steel belt 310 and the lower pressing steel belt 320.

Specifically, a hot pressing area 330 is arranged between the upper pressing steel belt 310 and the lower pressing steel belt 320, the hot pressing area 330 is a space for hot pressing the artificial board blank, and the board blank is hot-pressed and shaped in the hot pressing area 330.

Specifically, a mat conveyor 400 is disposed in the hot pressing zone 330 adjacent to the pressing-down steel belt 320, and the mat conveyor 400 is used to convey the mat of the artificial board into the hot pressing zone 330, so that the mat of the artificial board can be hot-pressed in the hot pressing zone 330.

Specifically, slab conveyer belt 400 can be the belt, and slab conveyer belt 400 can bear the higher slab of temperature, and the slab enters hot pressing district 330 from slab conveyer belt 400 when hot pressing, because the manufacturing material of different wood-based plates is different, and the strength that different manufacturing material bore is different, when the slab enters hot pressing district 330 from slab conveyer belt 400 when hot pressing, need guarantee that the slab on slab conveyer belt 400 is not loose, does not ftracture to guarantee the quality of artificial board slab, can guarantee the production quality of wood-based plate.

Specifically, the slab conveyer belt 400 is fixed by a frame, which may be made of angle steel, and is installed on the ground by bolts.

Specifically, as shown in fig. 2, the distance D between the top surface of the end of the slab conveyer 400 and the bottom-pressing steel belt 320 is 15mm to 20mm, and the distance is set to a suitable value, so that the distance from the top surface of the end of the slab conveyer 400 to the bottom-pressing steel belt 320 is relatively small, cracking and poor cracking of the artificial board slab when the artificial board reaches the bottom-pressing steel belt 320 from the slab conveyer 400 are avoided, and the quality of hot pressing of the artificial board slab is improved.

Specifically, the nearest distance D between the top surface of the end of the slab conveyer belt 400 and the press-down steel belt 320 is 15mm to 20mm, and the distance is obtained through tests, so that when slabs of different materials reach the press-down steel belt 320 from the top surface of the end of the slab conveyer belt 400, it is ensured that slabs of artificial boards are not loose, the strength of the slabs of artificial boards is ensured, the structural stability of the slabs of artificial boards is ensured, the artificial boards are stable in structure before hot pressing, the structural stability of the artificial boards is improved, and the quality of finished products of the artificial boards is improved.

Meanwhile, due to the quality difference of artificial board blanks made of different materials, through tests, the distance D between the top surface of the end part of the blank conveying belt 400 and the nearest end of the pressing steel belt 320 is set to be 15 mm-20 mm, so that the artificial board blanks made of production raw materials with various granularities can be prevented from cracking and cracking at the inlet of the hot press, the hot press can be suitable for hot pressing the artificial board blanks made of various materials, the adaptability of the hot press is improved, and the hot press is suitable for producing various artificial boards.

Example 2

The present embodiment is substantially the same as embodiment 1 except that, as shown in fig. 2, the distance D between the top surface of the end of the slab conveyer 400 and the press belt 320 is 16mm, and by setting this distance D to a suitable value, it is possible to perform hot pressing on artificial boards of various types of raw materials, and the range of adaptation when the hot press presses slabs is increased.

Specifically, the nearest distance D between the top surface of the end of the slab conveyer 400 and the lower steel strip 320 may be 15mm, 16mm, 18mm, or 20 mm.

Preferably, the end of the slab conveyer 400 near the push-down steel belt 320 is provided with a bracket 410, a carrier wheel 420 provided on the bracket 410, and the slab conveyer 400 is wound on the carrier wheel 420. The support 410 can be made for the steel structure, and on the frame of support 410 passed through bolt installation hot press, through support 410 installation carrier wheel 420, can support slab conveyer belt 400 through setting up carrier wheel 420, the in-process that carrier wheel 420 supported slab conveyer belt 400, slab conveyer belt 400 drove carrier wheel 420 and rotates, can reduce the frictional force between carrier wheel 420 and the slab conveyer belt 400, and the slab conveyer belt 400 of being convenient for moves for carrier wheel 420.

Preferably, the support 410 includes a linear mounting bracket 411 and a plurality of fixing brackets 412 mounted on the mounting bracket 411 in a linear manner, two fixing arms 413 are provided on the fixing brackets 412, the fixing arms 413 are fixing structures for the bearing wheel 420, and an end of the bearing wheel 420 is rotatably connected to the fixing arms 413.

Specifically, the mounting bracket 411 is used to mount and fix each of the fixing brackets 412. Wherein, mounting bracket 411 is made for the steel structure, through installing mount 412 on mounting bracket 411, is convenient for install mount 412, has improved the modularization degree that each mount 412 installed. Meanwhile, when the bearing wheels 420 have a failure, the bearing wheels 420 on the two fixing arms 413 can be replaced individually.

Specifically, by providing a plurality of bearing wheels 420 on the bracket 410, the flexibility of a single bearing wheel 420 can be reduced, and the supporting effect of the bearing wheels 420 on the blank conveying belt 400 is improved. Meanwhile, the bearing wheels 420 are matched with each other to uniformly support the slab conveyer belt 400, so that the supporting effect on the slab conveyer belt 400 is improved.

Preferably, as shown in fig. 4, the diameter d of the bearing wheel 420 is 10mm to 16mm, wherein the diameter d of the bearing wheel 420 may be 10mm, 12mm, 14mm or 16 mm.

Preferably, as shown in fig. 4, the diameter d of the bearing wheel 420 may be 13mm, so that the hot press can be suitable for hot pressing artificial board blanks of various materials, the adaptability of the hot press is improved, and the hot press is suitable for producing artificial boards of various fiber types.

Example 3

This embodiment has substantially the same structure as embodiment 1 except that the carrier wheel 420 includes a rotating shaft connected to the fixing arm 413, an outer ring in contact with the slab conveyor 400, and rolling bodies provided between the rotating shaft and the outer ring.

Specifically, the bearing wheel 420 may be made of a fixed part, and the rotating shaft, the outer ring and the rolling body constitute a bearing-like structure. The bearing wheel 420 can adopt a bearing structure in the prior art, the rolling body comprises a retainer and a rolling needle limited by the retainer, and the rolling needle can roll between the rotating shaft and the outer ring, so that the friction force between the rotating shaft and the outer ring of the bearing wheel 420 is reduced.

Here, the bearing wheel 420 can be manufactured by outsourcing customization, and the installation of the bearing wheel 420 on the mounting bracket 411 is facilitated by setting the length of the bearing wheel 420 to a proper value, so that the adaptability of the installation of the bearing wheel 420 and the mounting bracket 411 is improved.

Preferably, a step-shaped first fixing part 431 is arranged on the mounting frame 411, a second fixing part 432 matched with the first fixing part 431 is arranged on the fixing frame 412, the first fixing part 431 is connected with the second fixing part 432 through a bolt, and when the mounting frame 411 is replaced, the mounting frame 411 and the fixing frame 412 can be directly detached or installed through the bolt, so that the bearing wheel 420 can be conveniently installed and replaced.

Preferably, the mounting rack 411 is provided with 20 to 50 fixing racks 412, and the mounting rack 411 may be provided with 20, 25, 30, 35, 40, or 45, 50 fixing racks 412.

Preferably, as shown in fig. 4, the length L of each fixing frame 412 is 10cm to 30cm, and when the fixing frame 412 with a suitable length is used, the length L of each fixing frame 412 can be 10cm, 15cm, 20cm, 25cm or 30 cm.

In conclusion, the distance between the top surface of the end part of the slab conveying belt and the nearest end of the pressing steel belt is set to be a small value, so that the height drop of the slab from the slab conveying belt to the pressing steel belt is reduced, the bad phenomena of cracking and loosening of the slab at the inlet of the hot press are avoided, the hot press is suitable for hot pressing of artificial board slabs made of different materials, the product quality of artificial boards is improved, the quality problem of the slab in the hot pressing process is solved through technical improvement of equipment, and the hot pressing requirement of the slab when artificial board raw materials are diversified is met.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a hot press entry structure of wood-based plate, a serial communication port, including a set of action wheel (100), a set of follow driving wheel (200) and around establishing at action wheel (100), follow upward pressure steel band (310) on driving wheel (200), push down steel band (320), push down the below of steel band (310) is located in steel band (320), push up steel band (310), be equipped with hot nip (330) between push down steel band (320), it is equipped with slab conveyer belt (400) to be close to push down steel band (320) in hot nip (330), the most proximal distance between tip top surface of slab conveyer belt (400) and push down steel band (320) is 15mm to 20 mm.

2. A hot press inlet structure for artificial boards according to claim 1, wherein the distance between the top surface of the end of the slab conveyer belt (400) and the nearest end of the lower press belt (320) is 16 mm.

3. A hot press inlet structure for artificial boards according to claim 2, wherein the end of the slab conveyer belt (400) near the lower press belt (320) is provided with a bracket (410), a bearing wheel (420) arranged on the bracket (410), and the slab conveyer belt (400) is wound around the bearing wheel (420).

4. A hot press inlet structure for artificial boards according to claim 3, wherein the frame (410) comprises a linear mounting frame (411), a plurality of holders (412) linearly mounted on the mounting frame (411), two fixing arms (413) are provided on the holders (412), and the ends of the carrier wheels (420) are rotatably connected to the fixing arms (413).

5. A hot press inlet structure for artificial boards according to claim 4 wherein the diameter of the carrier wheel (420) is 10mm to 16 mm.

6. The artificial board hot press inlet structure according to claim 5, wherein the diameter of the carrier wheel (420) is 13 mm.

7. The artificial board hot press inlet structure according to claim 4, wherein the carrier wheel (420) comprises a rotating shaft, an outer ring and rolling elements disposed between the rotating shaft and the outer ring, and the rotating shaft is connected to the fixing arm (413).

8. The inlet structure of a hot press for artificial boards according to claim 7, wherein the mounting frame (411) is provided with a first stepped fixing part (431), the mounting frame (412) is provided with a second fixing part (432) engaged with the first fixing part (431), and the first fixing part (431) is connected to the second fixing part (432) by bolts.

9. A hot press inlet structure for artificial boards according to claim 8, wherein the mounting frame (411) is provided with 20 to 50 holders (412).

10. The artificial board hot press inlet structure according to claim 8, wherein each holder (412) has a length of 10cm to 30 cm.

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