CN211868115U - Fiber paving device for fiberboard processing - Google Patents

Abstract

The utility model relates to a fibre device of mating formation for fibreboard processing. The paving device comprises a base component, a paving component and a prepressing component; the base component comprises two supporting plates, a table top is arranged between the tops of the two supporting plates, and the supporting component is also arranged in the base component; the paving component comprises a first inner fixing base, a first outer fixing base, a second inner fixing base and a second outer fixing base which are arranged on the table board; an upper first guide rod and a first moving base are arranged between the first inner fixing base and the first outer fixing base, an upper second guide rod and a second moving base are arranged between the second inner fixing base and the second outer fixing base, and the device further comprises a first driving assembly; a sliding rod, a paving head assembly and a second driving assembly are arranged between the two movable bases; the prepressing assembly comprises a prepressing roller, and a translation driving assembly and a third driving assembly are further mounted on the lower surface of the table board. The utility model discloses compact structure, realization evenly mat formation, possess the pre-compaction function.

Description

Fiber paving device for fiberboard processing

Technical Field

The utility model belongs to the technical field of the fibreboard processing, especially, relate to a fibre device of mating formation for fibreboard processing.

Background

The fiber board is a kind of board widely used in fixture manufacture and decoration, and is one kind of artificial board made of interwoven lignocellulose fiber and with its inherent adhesive performance, and adhesive and/or additive may be added during the manufacture.

The processing process of the fiberboard comprises the following steps: fiber separation, slurry treatment, slab forming, hot pressing, post treatment and the like. Specifically, fiber separation, also known as pulping, is a process of separating pulping materials into fibers. The fiber separation method can be divided into a mechanical method and an explosion method, wherein the mechanical method is divided into a thermal mechanical method, a chemical mechanical method and a pure mechanical method; the slurry treatment is that according to the product application, the water-proof, strengthening, fire-proof and corrosion-proof treatments are respectively carried out to improve the relevant performance of the finished product, the hard and semi-hard fiber board slurry is treated by paraffin emulsion to improve the water resistance, and the soft board slurry can be rosin emulsion or paraffin-rosin emulsion; the slab forming comprises two main types of wet forming and dry forming, wherein a soft board and most of hard boards are formed by the wet forming; the medium-density board and part of hard board are formed by dry method, the low-concentration slurry for wet method forming is gradually dewatered to form board blank, the basic method comprises three methods of box frame forming, long net forming and cylinder forming; the pressure for producing the hard fiberboard by the wet method is 5 MPa, and the pressure for producing the hard fiberboard by the dry method is 7 MPa, so that the bending strength is reduced when the pressure is exceeded; the wet and semi-dry fiber boards need to be subjected to heat treatment and humidity conditioning treatment after hot pressing, the dry fiber boards need not to be subjected to heat treatment and can be directly subjected to humidity conditioning treatment, the surfaces of medium-density fiber boards need to be sanded, the surfaces of soft fiber boards need to be grooved and holed sometimes, and V-shaped grooves or stripe grooves can be opened on the surfaces of hard fiber boards when the hard fiber boards are used as inner wall boards.

In the above steps, the slab forming step is to lay the fiber on the template, generally in a rectangular shape, and lay the fiber to different design thicknesses according to the difference of the thicknesses of the fiber board products finally obtained by pressing. And (3) delivering the paving fibers supported by the template into a hot press for hot pressing to obtain a fiberboard product. The mat-forming step, i.e. the step of fibre laying, is therefore very important for the entire process. The existing paving equipment is difficult to realize uniform paving, and on the other hand, the fiber is preferably pre-pressed once after being paved and before entering a hot pressing process, so that the fiber is preliminarily compacted, the quality of hot pressing is favorably improved, and the existing paving equipment does not have the pre-pressing function.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem who exists among the well-known art and provide a compact structure, realize evenly mating formation, possess the fibre device of mating formation that is used for fibreboard processing of pre-compaction function.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a fiber paving device for processing fiber boards comprises a base assembly, wherein a paving assembly and a prepressing assembly are arranged on the base assembly; the base component comprises a first supporting plate and a second supporting plate which are opposite, a table top with a through window in the middle is arranged between the tops of the first supporting plate and the second supporting plate, a connecting plate is arranged between the bottoms of the first supporting plate and the second supporting plate, and a supporting component for supporting the fiber supporting template in the window of the table top is also arranged in the base component; the paving component comprises a first inner fixing base, a first outer fixing base, a second inner fixing base and a second outer fixing base which are arranged on the table board; the upper first guide rod and the first moving base moving along the upper first guide rod are arranged between the first inner fixing base and the first outer fixing base, the upper second guide rod and the second moving base moving along the upper second guide rod are arranged between the second inner fixing base and the second outer fixing base, and the first driving assembly is used for driving the first moving base and the second moving base to synchronously move; a sliding rod and a paving head assembly moving along the sliding rod are arranged between the first moving base and the second moving base, and the paving head assembly further comprises a second driving assembly driving the paving head assembly to move; the prepressing assembly comprises a prepressing roller arranged above the supporting assembly, and a translation driving assembly for driving the prepressing roller to translate and a third driving assembly for driving the prepressing roller to rotate are further arranged on the lower surface of the table board.

The utility model has the advantages that: the utility model provides a compact fibre device of mating formation that is used for fibreboard processing of structural design compares with current fibre equipment of mating formation, through setting up the base subassembly among this technical scheme, provides stable supporting platform for mating formation subassembly and pre-compaction subassembly. Through set up supporting component in the base subassembly, realized the stable bearing to the fibrous template of bearing. By arranging the paving head assembly and arranging the transverse and longitudinal driving mechanisms for the paving head assembly, the paving head assembly is enabled to have an action mode of paving one by one, and the uniformity of a paving effect is improved. Through set up the pre-compaction subassembly on the mesa, realized the pre-compaction operation to the fibrous layer after mating formation, through applying the pre-compaction effect, make the preliminary compaction of fibrous layer, the follow-up processing of carrying out hot pressing of being convenient for has promoted the quality of product. The whole device has compact structure, can be used as an independent unit and is additionally arranged on a production line of the fiber board, and the fiber is paved on the die board of the fiber board in a matching way.

Preferably: the first driving assembly comprises an upper driving belt pulley arranged on the first inner fixing base and the second inner fixing base and an upper driven belt pulley arranged on the first outer fixing base and the second outer fixing base, an upper first belt and an upper second belt are respectively arranged between the two groups of belt pulleys, the first moving base is fixedly connected with the upper first belt, the second moving base is fixedly connected with the upper second belt, and an upper driving motor for driving the upper driving belt pulley is also arranged on the first inner fixing base; a linkage shaft is also arranged between the first inner fixed base and the second inner fixed base.

Preferably: the paving head assembly comprises a middle moving base arranged on the sliding rod, and a paving head is arranged on the middle moving base; the paving head comprises a shell, a fiber supply pipeline is connected to the shell, a rotary brush for carrying out rotary blanking on fibers is further arranged in the shell, and a brush motor for driving the rotary brush is mounted on the shell.

Preferably: the second driving assembly comprises two belt pulleys arranged on the first moving base and the second moving base, an intermediate belt is arranged between the two belt pulleys, the intermediate moving base is fixedly connected with the intermediate belt, and the second driving assembly further comprises an intermediate motor for driving one of the belt pulleys to rotate.

Preferably: the translation driving assembly comprises two guide cross rods arranged on the lower surface of the table board, roller moving bases are arranged on the two guide cross rods, and the pre-pressing roller is arranged between the two roller moving bases; the automatic feeding device is characterized by further comprising two roller bases arranged at the bottom of the table board, belt pulleys are arranged on the two roller bases, a belt is arranged between the belt pulleys, and the automatic feeding device further comprises a roller translation motor driving one of the belt pulleys to rotate.

Preferably: the third driving assembly is a speed reducer for directly driving the prepressing roller to rotate.

Preferably: the supporting component comprises a bottom plate fixedly arranged between a first supporting plate and a second supporting plate, three groups of supporting mechanisms are arranged on the bottom plate, each supporting mechanism comprises a guide block fixedly arranged on the bottom plate, a supporting rod is arranged in each guide block, a threaded hole is formed in each guide block, a fastening screw is arranged in each threaded hole, a top base is arranged at the upper end of each supporting rod, and a supporting plate is arranged on the top base through an elastic piece.

Preferably: a guide hole is arranged on the top base; the elastic part comprises a central rod and a spring, the central rod is positioned in the guide hole, and the upper end of each central rod is fixed at the four corners of the supporting plate respectively.

Preferably: and a longitudinal partition plate is arranged between two adjacent supporting mechanisms, and the bottom of the longitudinal partition plate is fixedly connected with the bottom plate.

Preferably: two front and back panels are arranged between the first supporting plate and the second supporting plate to encapsulate the supporting component inside.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the middle decking assembly of the present invention;

FIG. 3 is a schematic structural view of the mid-sole assembly of the present invention;

fig. 4 is a schematic structural view of the support assembly of fig. 3.

In the figure: 1. a first support plate; 2. a connecting plate; 3. a panel; 4. a second support plate; 5. an upper driven pulley; 6. a first moving base; 7. an upper first guide bar; 8. an upper first belt; 9. a table top; 10. an upper drive pulley; 11. a first inner fixed base; 12. an upper drive motor; 13. a linkage shaft; 14. a second internal fixed base; 15. a slide bar; 16. a second movable base; 17. an upper second belt; 18. an upper second guide bar; 19. A first outer fixed base; 20. a second outer fixed base; 21. a paving head assembly; 21-1, paving a head; 21-2, an intermediate mobile base; 22. a pre-pressing component; 22-1, pre-pressing rollers; 22-2, a roller moving base; 22-3, a roller base; 23. a support assembly; 23-1, a bottom plate; 23-2, a support mechanism; 23-2-1, a guide block; 23-2-2, fastening screws; 23-2-3, a support rod; 23-2-4, a top base; 23-2-5, an elastic member; 23-3, longitudinal partition plates; 23-4, a supporting plate.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments are described in detail.

Referring to fig. 1, the fiber paving device for processing fiber boards of the present invention includes a base assembly, on which a paving assembly and a pre-pressing assembly 22 are mounted. Wherein, the base subassembly is used for supporting subassembly and the pre-compaction subassembly 22 of mating formation, and the subassembly of mating formation is used for mating formation the fibre to the mould board on, and pre-compaction subassembly 22 is used for providing the pre-compaction effect to the fibrous layer of the completion of mating formation.

Referring to fig. 1 and 3, the base assembly includes a first support plate 1 and a second support plate 4 opposite to each other, a table 9 with a through window in the middle is installed between the tops of the two support plates, a connecting plate 2 is installed between the bottoms of the two support plates, a support assembly 23 for supporting a fiber-bearing template in the window of the table 9 is further installed in the base assembly, and when the template is placed on the support assembly 23, the whole body falls in the window of the table 9.

The two side edges of the connecting plate 2 are respectively fixedly connected with the first supporting plate 1 and the second supporting plate 4, so that the first supporting plate 1 and the second supporting plate 4 provide stable supporting function. The fibre bearing formwork is placed on the support member 23 and the paving member paves the fibres onto the formwork.

Referring to fig. 4, it can be seen that: the supporting component 23 comprises a bottom plate 23-1 which is fixedly arranged between the first supporting plate 1 and the second supporting plate 4, and three groups of supporting mechanisms 23-2 are arranged on the bottom plate 23-1. The supporting mechanism 23-2 comprises a guide block 23-2-1 which is fixedly arranged on the bottom plate 23-1, a supporting rod 23-2-3 is arranged in the guide block 23-2-1, the supporting rod 23-2-3 can move up and down on the guide block 23-2-1 to adjust the overall height of the supporting mechanism 23-2, a threaded hole is formed in the guide block 23-2-1, a fastening screw 23-2-2 is arranged in the threaded hole, and the supporting rod 23-2-3 is loosened and fixed by loosening or fastening the fastening screw 23-2-2. The upper end of the support rod 23-2-3 is provided with a top base 23-2-4, the top base 23-2-4 is provided with a supporting plate 23-4 through an elastic piece 23-2-5, and the fiber template is supported by the supporting plate 23-4.

The three groups of supporting mechanisms 23-2 divide the whole supporting surface into a left part, a middle part and a right part, and generally, the whole heights of the three parts are adjusted to be consistent, namely, the heights of the supporting plates 23-4 are consistent.

In this embodiment, the top base 23-2-4 is provided with a guide hole; the elastic part 23-2-5 comprises a central rod and a spring, the central rod is positioned in the guide hole, and the upper end of each central rod is respectively fixed at the four corners of the supporting plate 23-4. Thus, the support plate 23-4 has a certain margin of floating up and down, and the elastic member 23-2-5 provides the support plate 23-4 with the floating elastic force.

In the embodiment, a longitudinal partition plate 23-3 is arranged between two adjacent supporting mechanisms 23-2, and the bottom of the longitudinal partition plate 23-3 is fixedly connected with a bottom plate 23-1. The longitudinal clapboards 23-3 separate the groups of supporting mechanisms 23-2, and the longitudinal clapboards 23-3 also serve as limit supports for the fiber template, in the initial condition, the height of each supporting board 23-4 is greater than the height of the top edge of each longitudinal clapboard 23-3, when the fiber template is subjected to the pre-pressing pressure generated by the pre-pressing assembly 22, the template forces each supporting board 23-4 to compress the spring of each elastic piece 23-3-5 to contract, and when the fiber template moves downwards for a certain distance, the fiber template is in contact with the top edge of each longitudinal clapboard 23-3, so that the fiber template can not move downwards any more, and the low position of the fiber template is limited.

In this embodiment, the front and rear panels 3 are provided between the first support plate 1 and the second support plate 4, and the support member 23 is enclosed therein.

Referring to fig. 2, the paving assembly includes a first inner fixing base 11, a first outer fixing base 19, a second inner fixing base 14 and a second outer fixing base 20 mounted on the table top 9. An upper first guide bar 7 and a first moving base 6 moving along it are provided between the first inner fixed base 11 and the first outer fixed base 19, and an upper second guide bar 18 and a second moving base 16 moving along it are provided between the second inner fixed base 14 and the second outer fixed base 20.

And a first driving component for driving the first moving base 6 and the second moving base 16 to move synchronously. In this embodiment, the first driving assembly includes an upper driving pulley 10 mounted on the first inner fixing base 11 and the second inner fixing base 14 and an upper driven pulley 5 mounted on the first outer fixing base 19 and the second outer fixing base 20, an upper first belt 8 and an upper second belt 17 are respectively disposed between the two sets of pulleys, the first moving base 6 is fixedly connected to the upper first belt 8, and the second moving base 16 is fixedly connected to the upper second belt 17.

An upper driving motor 12 for driving the upper driving pulley 10 is further mounted on the first inner fixing base 11; a linkage shaft 13 is also arranged between the first inner fixed base 11 and the second inner fixed base 14. Under the drive of the upper driving motor 12, the upper driving pulley 10 on the first inner fixed base 11 and the second inner fixed base 14 synchronously rotate due to the linkage action of the linkage shaft 13, and then the first belt 8 and the second belt 17 drive the first moving base 6 and the second moving base 16 to synchronously move.

Between the first moving base 6 and the second moving base 16, there are a slide bar 15 and a paving head assembly 21 moving along it, and a second driving assembly for driving the paving head assembly 21 to move. The paving head assembly 21 is used for discharging the externally supplied fibers downward onto the formwork to complete the paving operation of the fibers.

In this embodiment, the paving head assembly 21 includes an intermediate movable base 21-2 mounted on the slide bar 15, and the paving head 21-1 is mounted on the intermediate movable base 21-2. The paving head 21-1 comprises a shell, a fiber supply pipeline is connected to the shell, a rotary brush for feeding fibers in a rotary manner is further arranged in the shell, and a brush motor for driving the rotary brush is mounted on the shell. Under the action of the brush motor, the rotary brush rotates in the shell, the fibers are supplied to the shell in a wind conveying mode, a packing auger blanking mode and the like along the fiber supply pipeline, and under the action of the rotary brush, the fibers are discharged downwards from an outlet at the bottom of the shell and fall on the template.

In this embodiment, the second driving assembly includes two belt pulleys mounted on the first moving base 6 and the second moving base 16, an intermediate belt is disposed between the two belt pulleys, and the intermediate moving base 21-2 is fixedly connected to the intermediate belt, and an intermediate motor for driving one of the belt pulleys to rotate. Under the action of the middle motor, the middle belt drives the middle moving base 21-2 to reciprocate, and fiber paving operation of a lower strip (called as a transverse direction) is realized.

In the longitudinal direction, the assembly of the laying head assembly 21, the first mobile base 6 and the second mobile base 16, etc. is driven by the upper mobile motor 12, so that the operations of laying the fibre on the whole formwork can be carried out in a band-by-band manner. Considering the characteristics of the work of the laying head 21-1 itself, there is less material in the rear of its shell and more material in the front, so that when the movement of the laying head 21-1 is controlled, the next strip to be laid is overlapped with the previous strip to a certain extent, i.e. the rear edge of the next strip overlaps the front edge of the previous strip by a certain width, thus ensuring the uniformity of the fibre laying.

Referring to fig. 1 and 2, the prepressing assembly 22 includes a prepressing roller 22-1 mounted above the supporting assembly 23, and a translation driving assembly for driving the prepressing roller 22-1 to translate and a third driving assembly for driving the prepressing roller 22-1 to rotate are further mounted on the lower surface of the table 9.

In this embodiment, the translation driving assembly includes two guide rails installed on the lower surface of the table top 9, the two guide rails are both provided with roller moving bases 22-2, and the pre-pressing roller 22-1 is installed between the two roller moving bases 22-2. The device also comprises two roller bases 22-3 arranged at the bottom of the table board 9, belt pulleys are arranged on the two roller bases 22-3, a belt is arranged between the belt pulleys, and the device also comprises a roller translation motor for driving one of the belt pulleys to rotate. Under the action of the roller translation motor, the belt drives the two roller bases 22-3 to transversely translate along the guide cross bars, correspondingly, the prepressing rollers 22-1 pass through the surface of the template which is paved, and prepress the loose paving fiber layer below to enable the fiber layer to become compact, so that the subsequent hot-pressing processing is facilitated.

In this embodiment, the third driving assembly is a speed reducer for directly driving the prepress roll 22-1 to rotate, that is, the prepress roll 22-1 rotates during the traversing process, so that the fiber layer is subjected to rolling compaction treatment.

The working process is as follows:

placing the template in the window of the table top 9, and starting the paving device;

the upper driving motor 12 drives the paving head assembly 21 to move to the end position of the template, then the brush motor of the paving head 21-1 is started to start to put the fibers down on the template, and meanwhile, the paving head 21-1 performs the transverse movement to finish the fiber paving operation of one strip; the upper driving motor 12 drives the paving head assembly 21 to move forwards for a certain distance, and then paving operation of the next strip is carried out; repeating the steps until the fiber layer on the template is fully paved according to the set requirement;

then the prepressing assembly 22 acts, the prepressing roller 22-1 starts to rotate and moves transversely along the longitudinal direction at the same time, and the loose fiber layer below is compacted; and taking the fiber layer which is paved and pre-pressed together with the template out of the window of the table board 9 by manpower or a mechanical arm, placing the fiber layer into hot pressing equipment, loading another template and repeating the operation.

Claims (10)

1. The utility model provides a fibre device of mating formation for fibreboard processing which characterized by: comprises a base component, wherein a paving component and a prepressing component (22) are arranged on the base component;

the base component comprises a first supporting plate (1) and a second supporting plate (4) which are opposite, a table board (9) with a through window in the middle is arranged between the tops of the first supporting plate and the second supporting plate, a connecting plate (2) is arranged between the bottoms of the first supporting plate and the second supporting plate, and a supporting component (23) which supports a fiber supporting template in the window of the table board (9) is also arranged in the base component;

the paving component comprises a first inner fixing base (11), a first outer fixing base (19), a second inner fixing base (14) and a second outer fixing base (20) which are arranged on the table top (9); an upper first guide rod (7) and a first moving base (6) moving along the upper first guide rod are arranged between a first inner fixing base (11) and a first outer fixing base (19), an upper second guide rod (18) and a second moving base (16) moving along the upper second guide rod are arranged between a second inner fixing base (14) and a second outer fixing base (20), and the device further comprises a first driving component for driving the first moving base (6) and the second moving base (16) to move synchronously; a sliding rod (15) and a paving head assembly (21) moving along the sliding rod are arranged between the first moving base (6) and the second moving base (16), and the paving head assembly further comprises a second driving assembly for driving the paving head assembly (21) to move;

the prepressing assembly (22) comprises a prepressing roller (22-1) arranged above the supporting assembly (23), and a translation driving assembly for driving the prepressing roller (22-1) to translate and a third driving assembly for driving the prepressing roller (22-1) to rotate are further arranged on the lower surface of the table top (9).

2. A fiber placement device for fiberboard processing as set forth in claim 1, wherein: the first driving assembly comprises an upper driving belt pulley (10) arranged on a first inner fixing base (11) and a second inner fixing base (14) and an upper driven belt pulley (5) arranged on a first outer fixing base (19) and a second outer fixing base (20), an upper first belt (8) and an upper second belt (17) are respectively arranged between the two groups of belt pulleys, a first moving base (6) is fixedly connected with the upper first belt (8), a second moving base (16) is fixedly connected with the upper second belt (17), and an upper driving motor (12) for driving the upper driving belt pulley (10) is further arranged on the first inner fixing base (11); a linkage shaft (13) is also arranged between the first inner fixed base (11) and the second inner fixed base (14).

3. A fibre-laying apparatus for fibreboard processing as claimed in claim 2 wherein: the paving head assembly (21) comprises a middle moving base (21-2) arranged on the sliding rod (15), and a paving head (21-1) is arranged on the middle moving base (21-2); the paving head (21-1) comprises a shell, a fiber supply pipeline is connected to the shell, a rotary brush for carrying out rotary blanking on fibers is further arranged in the shell, and a brush motor for driving the rotary brush is mounted on the shell.

4. A fibre-laying apparatus for fibreboard processing as claimed in claim 3 wherein: the second driving component comprises two belt pulleys arranged on the first moving base (6) and the second moving base (16), an intermediate belt is arranged between the two belt pulleys, and the intermediate moving base (21-2) is fixedly connected with the intermediate belt.

5. A fibre-laying apparatus for fibreboard processing as claimed in claim 4 wherein: the translation driving assembly comprises two guide cross rods arranged on the lower surface of the table top (9), roller moving bases (22-2) are arranged on the two guide cross rods, and a pre-pressing roller (22-1) is arranged between the two roller moving bases (22-2); the automatic feeding device is characterized by further comprising two roller bases (22-3) arranged at the bottom of the table top (9), belt pulleys are arranged on the two roller bases (22-3), a belt is arranged between the belt pulleys, and the automatic feeding device also comprises a roller translation motor driving one of the belt pulleys to rotate.

6. A fibre-laying apparatus for fibreboard processing as claimed in claim 5 wherein: the third driving component is a speed reducer which directly drives the prepressing roller (22-1) to rotate.

7. A fibre-laying apparatus for fibreboard processing as claimed in claim 6 wherein: the supporting component (23) comprises a bottom plate (23-1) which is fixedly arranged between the first supporting plate (1) and the second supporting plate (4), three groups of supporting mechanisms (23-2) are arranged on the bottom plate (23-1), the supporting mechanisms (23-2) comprise guide blocks (23-2-1) which are fixedly arranged on the bottom plate (23-1), a support rod (23-2-3) is arranged in the guide block (23-2-1), a threaded hole is arranged on the guide block (23-2-1), a fastening screw (23-2-2) is arranged in the threaded hole, a top base (23-2-4) is arranged at the upper end of the supporting rod (23-2-3), a supporting plate (23-4) is arranged on the top base (23-2-4) through an elastic piece (23-2-5).

8. A fiber placement device for fiberboard processing as set forth in claim 7, wherein: a guide hole is arranged on the top base (23-2-4); the elastic piece (23-2-5) comprises a central rod and a spring, the central rod is positioned in the guide hole, and the upper end of each central rod is respectively fixed at the four corners of the supporting plate (23-4).

9. A fiber placement device for fiberboard processing as set forth in claim 8, wherein: a longitudinal partition plate (23-3) is arranged between two adjacent supporting mechanisms (23-2), and the bottom of the longitudinal partition plate (23-3) is fixedly connected with the bottom plate (23-1).

10. A fiber placement device for fiberboard processing as set forth in claim 9, wherein: a front panel and a rear panel (3) are arranged between the first supporting plate (1) and the second supporting plate (4), and the supporting component (23) is encapsulated inside.

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