CN113578583A

CN113578583A - Surface coating device for processing formaldehyde-free board

Info

Publication number: CN113578583A
Application number: CN202110976611.XA
Authority: CN
Inventors: 赵如意
Original assignee: Hunan Marun Home Technology Co ltd
Current assignee: Hunan Marun Home Technology Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-11-02
Anticipated expiration: 2041-08-24
Also published as: CN113578583B

Abstract

The invention discloses a surface coating device for processing aldehyde-free plates, which comprises a partition board arranged on a spraying machine, wherein the bottom of the partition board is provided with a lifting cylinder, the partition board is arranged on the spraying machine by utilizing the lifting cylinder, the partition board is provided with a plurality of through grooves, a complete pattern is formed by the through grooves, a combined baffle plate which can move integrally and is combined and deformed in a plurality of sections is arranged in each through groove, the combined baffle plate is utilized to spray different color combinations on the aldehyde-free part in each through groove, the surface coating device for processing aldehyde-free plates is different from the prior art, special pattern coating can be carried out on the surface of the aldehyde-free plate by utilizing the partition board and the through grooves, in addition, the design and the combined shielding of the combined baffle plate are utilized, a shielding template is not required to be replaced, and different color combinations can be directly sprayed on the coating position of the whole pattern, thereby facilitating the high-quality painting and use of the surface of the formaldehyde-free plate.

Description

Surface coating device for processing formaldehyde-free board

Technical Field

The invention relates to the technical field of aldehyde-free plate processing, in particular to a surface coating device for processing an aldehyde-free plate.

Background

The artificial board product which is processed for the second time and the subsequent processing by taking the aldehyde-free artificial board as the base material, and other materials are not added with additives containing formaldehyde components in the processing process, and meets the index limit requirement of the standard is called the aldehyde-free added artificial board product, and is called the aldehyde-free added artificial board product for short.

At present, in the process of manufacturing the aldehyde-free plate, particularly for the aldehyde-free plate for indoor decoration, the surface of the aldehyde-free plate is often coated at the last of the plate forming so as to increase the aesthetic property and the interest of the plate, thereby providing more possibilities and options for home decoration.

However, in order to ensure the forming effect of the pattern during the actual coating process of such a special pattern, it is often necessary to shield the periphery thereof, but when different colors are sprayed to different positions in one pattern, it is often inconvenient to replace the mold plate and repeat the shielding, and thus a surface coating apparatus for processing a plate material without aldehyde has been proposed.

Disclosure of Invention

The present invention is directed to a surface coating apparatus for processing a non-formaldehyde plate material to solve the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a surface coating device for processing formaldehyde-free plates comprises a partition plate arranged on a spraying machine, wherein a lifting cylinder is arranged at the bottom of the partition plate and is arranged on the spraying machine by utilizing the lifting cylinder;

and a plurality of through grooves are formed in the partition plate, a complete pattern is formed by the plurality of through grooves, combined type baffles which can move integrally and deform in a multi-section combination mode are arranged in each through groove, and different color combinations are sprayed on the part without aldehyde in each through groove by using the combined type baffles.

Preferably, a plurality of grooves which are in one-to-one correspondence with the through grooves are arranged in the partition board, each groove is communicated with the corresponding through groove, and the width of each groove is larger than the width of the notch of the corresponding through groove;

the combined baffle comprises a combined plate arranged in the groove, the combined plate is arranged in the groove in a sliding mode and partitions the through groove, first air cylinders are arranged in the groove, a sliding seat is arranged at the output end of each air cylinder, and the sliding seat is in sliding contact with the inner wall of the groove to enable the sliding seat to move directionally;

the combination plate is arranged on one side of the sliding seat far away from the first air cylinder, the first air cylinder stretches to drive the combination plate to expose the part without aldehyde in the through groove, and the exposed position is selected according to the combination mode of the combination plate.

Preferably, the combined board comprises a combined main board, the combined main board is installed on the sliding seat, a combined support is arranged on one side, away from the sliding seat, of the combined main board, an elastic soft sleeve is sleeved on the outer side of the combined support, the combined main board and the expanded elastic soft sleeve separate the through groove, and the combined support is used for moving to drive the elastic soft sleeve to deform so as to expose areas of different shapes.

Preferably, the elastic soft sleeve is made of rubber materials.

Preferably, the combined support comprises two fixed support rods respectively installed on two sides of the combined main board and two sleeve rods respectively corresponding to the fixed support rods, displacement rods are arranged in the sleeve rods in a sliding manner, an elastic deflection mechanism is arranged between the fixed support rods and the sleeve rods, and an elastic deflection mechanism with the same structure is also arranged between the two displacement rods so as to enable the combined support to deform in an elastic deflection manner;

the combined support further comprises a second air cylinder, the second air cylinder is installed on the combined main board, a connecting plate is arranged at the output end of the second air cylinder, and the connecting plate is connected with the elastic deflection mechanism between the two displacement rods so as to utilize the expansion and contraction of the second air cylinder to drive the combined support to move and deform.

Preferably, the elastic deflection mechanism comprises a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are respectively arranged on the fixed support rod and the loop bar between the fixed support rod and the loop bar, and the first bearing seat and the second bearing seat are respectively arranged on the two displacement bars between the two displacement bars;

a rotating shaft is arranged between the bearing seat I and the bearing seat II, the rotating shaft is simultaneously and rotatably connected with the bearing seat I and the bearing seat II, a torsion spring is arranged on the outer side of the rotating shaft, and two ends of the torsion spring are respectively connected with the bearing seat I and the bearing seat II to provide elastic deflection capacity for the torsion spring;

the connecting plate is connected with the rotating shaft between the two shifting rods.

Preferably, the combined main board comprises a fixed plate and a bearing plate, the fixed plate is mounted on the sliding seat, and the combined bracket is mounted on the bearing plate;

and a splice plate is arranged between the fixed plate and the bearing plate, a connecting piece is arranged on the splice plate, the connecting piece is respectively detachably connected with the fixed plate and the bearing plate, an accommodating groove corresponding to the splice plate is arranged on the inner wall of the groove, a driving piece is arranged in the accommodating groove, and the driving piece drives the splice plate to independently slide into the accommodating groove to expose the position where the splice plate is shielded for spraying.

Preferably, the connecting piece is including installing respectively at splice plate one side magnet one that is close to fixed plate one side and the magnet two that is close to loading board one side, and the fixed plate is close to one side of splice plate and is provided with magnet three, just one side that the loading board is close to the splice plate is provided with magnet four, magnet one is opposite with the opposite polarity of magnet three-phase, magnet two is opposite with the opposite polarity of magnet four-phase, just magnet three is the same with magnet four-polarity opposite face, so that splice plate and fixed plate and loading board releasable connection.

Preferably, the driving member includes a magnet five disposed at one end of the splice plate close to the accommodating slot, a first electromagnet is disposed in the accommodating slot, the splice plate is received into the accommodating slot by using magnetic force generated by electrifying the first electromagnet, and the splice plate is ejected out of the accommodating slot to reset when reverse current is electrified.

Preferably, a magnet six is arranged at one end, far away from the accommodating groove, of the splice plate, a second electromagnet is arranged on the inner wall of the groove, opposite to the magnet six, and the splice plate is provided with an auxiliary force by matching of the second electromagnet and the magnet six.

Compared with the prior art, the invention has the beneficial effects that:

the invention is different from the prior art, the special pattern can be coated on the surface of the formaldehyde-free board through the arranged partition boards and the through grooves, in addition, different color combinations can be directly sprayed on the coating position of the whole pattern by utilizing the design and the combined shielding of the combined baffle without replacing the shielding template, and further, the invention is convenient for high-quality coating and painting on the surface of the formaldehyde-free board.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of another orientation of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the structure of the combined baffle of the present invention;

FIG. 4 is a schematic view of the present invention in partial cross-section of FIG. 3;

FIG. 5 is an enlarged partial cross-sectional view of FIG. 3 according to the present invention;

FIG. 6 is a schematic view of the structure of the composite board of the present invention;

FIG. 7 is a schematic view of the present invention in partial cross-section of FIG. 6;

FIG. 8 is a schematic view of the invention shown in FIG. 7, partially in cross-section;

FIG. 9 is a schematic view of a splice plate according to the present invention;

FIG. 10 is a schematic view of a normal finishing configuration of the present invention;

FIG. 11 is a diagram of the effect of the first combination coating of the present invention;

FIG. 12 is a diagram of the effect of the second combination coating according to the present invention;

FIG. 13 is a diagram of the effect of the double composite coating of the present invention.

In the figure: 1-a separator; 11-a lifting cylinder; 12-a through slot; 2-combined baffle; 21-a groove; 22-a first cylinder; 23-a slide; 3-a composition board; 31-elastic soft sleeve; 4-combining the main board; 41-fixing plate; 42-a carrier plate; 43-splice plate; 44-a containing groove; 5-a combined bracket; 51-a fixed strut; 52-a loop bar; 53-a displacement rod; 54-cylinder two; 55-a connecting plate; 6-elastic deflection means; 61-bearing seat I; 62-bearing seat II; 63-a rotating shaft; 64-torsion spring; 7-a connector; 71-magnet one; 72-magnet two; 73-magnet three; 74-magnet four; 8-a driving member; 81-magnet five; 82-a first electromagnet; 83-magnet six; 84-second electromagnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a surface coating device for processing an aldehyde-free plate comprises a partition plate 1 arranged on a spraying machine, wherein a lifting cylinder 11 is arranged at the bottom of the partition plate 1 and is installed on the spraying machine by utilizing the lifting cylinder 11, in the actual use process, the partition plate 1 is lifted by utilizing the lifting cylinder 11, the aldehyde-free plate can be placed below the partition plate 1, the partition plate 1 is arranged to reset, and the surface coating of the aldehyde-free plate can be carried out;

and seted up a plurality of logical grooves 12 on baffle 1, a complete pattern is constituteed to a plurality of logical grooves 12, and all is provided with the combination formula baffle 2 that can the bulk movement and multistage combination warp in every logical groove 12, utilizes the local combination of combination formula baffle 2 to shelter from to expose the different positions of the no aldehyde plate part in every logical groove 12, can directly spout out different colour combinations.

Supplementary explanation to the above features is:

a plurality of grooves 21 which are in one-to-one correspondence with the through grooves 12 are arranged in the partition board 1, each groove 21 is communicated with the corresponding through groove 12, and the width of each groove 21 is larger than the width of the notch of the corresponding through groove 12;

the combined baffle 2 comprises a combined plate 3 arranged in a groove 21, the combined plate 3 is arranged in the groove 21 in a sliding mode and is in contact with the inner wall of the groove 21, the size of the groove 21 is larger than that of the through groove 12, so that the combined plate 3 can completely cover and separate the through groove 12, air cylinders I22 are arranged in the groove 21, a sliding seat 23 is arranged at the output end of each air cylinder I22, the sliding seat 23 is in sliding contact with the inner wall of the groove 21, the sliding seat 23 is directionally moved, the stability of the combined plate 3 in the moving and using process is guaranteed through the directional movement of the sliding seat 23, and the stable moving and shielding use of the accurate position of the through groove 12 is guaranteed;

in addition, the composition board 3 is disposed on a side of the sliding seat 23 away from the first cylinder 22, and the sliding seat 23 is driven by the expansion of the first cylinder 22 to drive the composition board 3 to move, so as to expose the non-formaldehyde portion in the through slot 12, and the exposed position is selected according to the combination manner of the composition board 3.

Furthermore, the combined board 3 in the above characteristics is supplemented, which includes a combined main board 4, the combined main board 4 is installed on the sliding base 23, and a combined support 5 is arranged on one side of the combined main board 4 away from the sliding base 23, an elastic soft sleeve 31 is sleeved outside the combined support 5, the elastic soft sleeve 31 is made of rubber material, in the using process, the combined support 5 acts to stretch and contract to drive the elastic soft sleeve 31 on the outer side to correspondingly expand and contract, in the limit stretching state of the combined support 5, the combined main board 4 and the expanded elastic soft sleeve 31 completely separate the through groove 12, and the combined support 5 acts to displace to drive the elastic soft sleeve 31 to contract and deform to expose areas of different shapes, so as to be used for coating and drawing different colors at different positions of the area.

Furthermore, the combination bracket 5 in the above features is supplemented, and includes two fixed support rods 51 respectively installed on two sides of the combination main board 4 and two loop bars 52 respectively corresponding to the fixed support rods 51, shift rods 53 are slidably arranged in the loop bars 52, an elastic deflection mechanism 6 is arranged between the fixed support rods 51 and the loop bars 52, and an elastic deflection mechanism 6 with the same structure is also arranged between the two shift rods 53, so that the elastic deflection mechanism 6 can deflect and self-reset, and the combination bracket 5 elastically deflects and deforms;

the combined bracket 5 further comprises a second cylinder 54, the second cylinder 54 is mounted on the combined main board 4, a connecting plate 55 is arranged at the output end of the second cylinder 54, the connecting plate 55 is connected with the elastic deflection mechanism 6 between the two displacement rods 53, so that the two displacement rods 53 are driven to deflect by utilizing the expansion and contraction of the second cylinder 54, and the displacement rods 53 slide into the sleeve rods 52 while deflecting, thereby eliminating the horizontal distance difference between the two elastic deflection mechanisms 6 when the displacement rods 53 deflect, and enabling the combined bracket 5 to be capable of stably acting and deforming.

Further, the elastic deflection mechanism 6 comprises a first bearing seat 61 and a second bearing seat 62, wherein the first bearing seat 61 and the second bearing seat 62 are respectively arranged on the fixed support rod 51 and the loop bar 52 between the fixed support rod 51 and the loop bar 52, and the first bearing seat 61 and the second bearing seat 62 are respectively arranged on the two displacement bars 53 between the two displacement bars 53 and are arranged in a vertically staggered manner;

a rotating shaft 63 is arranged between the first bearing seat 61 and the second bearing seat, the rotating shaft 63 is simultaneously and rotatably connected with the first bearing seat 61 and the second bearing seat 62, a torsion spring 64 is arranged outside the rotating shaft 63, two ends of the torsion spring 64 are respectively connected with the first bearing seat 61 and the second bearing seat 62, and when the shift lever 53 drives the loop bar 52 to deflect, the corresponding first bearing seat 61 and the second bearing seat 62 drive the torsion spring 64 to rotate so as to provide elastic deflection capacity for the torsion spring;

the connecting plate 55 is U-shaped and connected to two ends of the rotating shaft 63, so that when the second cylinder 54 moves the connecting plate 55, the displacement rod 53 is correspondingly moved.

Furthermore, the characteristic combination main board 4 is supplemented, and comprises a fixing plate 41 and a bearing plate 42, wherein the fixing plate 41 is installed on the sliding seat 23, and the combination bracket 5 is installed on the bearing plate 42;

and a splice plate 43 is arranged between the fixed plate 41 and the bearing plate 42, the splice plate 43 can be in the shape of any shape such as arc, rectangle and the like, so as to be displaced horizontally independently, and further cancel the shielding of the position, and perform independent color-complementing spraying on the position, a connecting piece 7 is arranged on the splice plate 43, and the connecting piece 7 is respectively detachably connected with the fixed plate 41 and the bearing plate 42, so as to be convenient for independent horizontal displacement to cancel the shielding of the position, and an accommodating groove 44 corresponding to the splice plate 43 is arranged on the inner wall of the groove 21, a driving piece 8 is arranged in the accommodating groove 44, the driving piece 8 drives the splice plate 43 to slide into the accommodating groove 44 independently, and the shielding position of the splice plate 43 is exposed for spraying.

Furthermore, the connector 7 in the above feature is supplemented, which includes a first magnet 71 and a second magnet 72 respectively installed on the side of the splice plate 43 close to the fixing plate 41 and the side of the carrier plate 42, and a third magnet 73 is installed on the side of the fixing plate 41 close to the splice plate 43, and a fourth magnet 74 is installed on the side of the carrier plate 42 close to the splice plate 43, wherein the polarities of the opposite surfaces of the first magnet 71 and the third magnet 73 are opposite, the polarities of the opposite surfaces of the second magnet 72 and the fourth magnet 74 are opposite, and the opposite surfaces of the polarities of the third magnet 73 and the fourth magnet 74 are the same, so that the splice plate 43 and the fixing plate 41 and the carrier plate 42 are detachably connected, it is supplemented that, by the above design, when the cylinder one 22 normally pulls the combination plate 3 to move integrally, the fixing plate 41, the splice plate 43 and the carrier plate 42 are integrated by using magnetic adsorption, so that the whole stable movement of the splice plate 43 is moved by the driving member 8 alone to cancel the shielding, the polarities of the three magnets 73 and the four magnets 74 are opposite, and the mutual repulsion force is utilized to ensure the stability of the fixing plate 41 and the bearing plate 42, so that the influence of the inclined movement or the approach of the fixing plate and the bearing plate on the stable reset use of the splicing plate 43 is avoided.

Further, the driving member 8 in the above feature is supplemented, and includes a magnet five 81 disposed at one end of the splice plate 43 close to the receiving slot 44, and a first electromagnet 82 is disposed in the receiving slot 44, by the above design, when the splice plate 43 needs to be moved, a forward current is conducted to the first electromagnet 82, and then the splice plate 43 is received in the receiving slot 44 by utilizing the magnetic force generated by the conduction of the first electromagnet 82, and after the spraying at this position is completed, a repulsive force is generated when a reverse current is conducted to the splice plate 43, so that the splice plate 43 is ejected out of the receiving slot 44 to be reset.

Further, a magnet six 83 is arranged at one end of the splice plate 43 far away from the accommodating groove 44, and a second electromagnet 84 is arranged at a position on the inner wall of the groove 21 opposite to the magnet six 83, and as the principle is the same, because the first electromagnet 82 is relatively far away from the magnet five 81, the magnetic force is relatively small when the first electromagnet is far away from the magnet six 83, the difference is that in the process of moving the splice plate 43 into the accommodating groove 44, the repulsion force is generated by the magnet six 83 and the second electromagnet 84, which assists in pushing the splice plate 43 into the accommodating groove 44, and when the splice plate 43 is reset, the position generates the suction force to enable the splice plate 43 to be reset stably, and the cooperation of the second electromagnet 84 and the magnet six 83 is used for providing the auxiliary force for the splice plate 43.

The following explains the specific combination painting effect of the combined baffle 2 under different combination shielding modes by way of example with reference to fig. 10-13;

as shown in fig. 10, after each through groove 12 is completely opened, the actual painting effect is a single color pattern;

as shown in fig. 11, on the basis of fig. 10, the assembly frame 5 drives the elastic soft sleeve 31 to take different shrinking deformation states, thereby exhibiting a coating effect;

as shown in fig. 12, also on the basis of fig. 10, the finishing effect is exhibited when the splice bar 43 is moved alone;

fig. 13 shows a finishing effect exhibited when the splice bar 43 is moved independently, based on fig. 11.

It should be noted that the above exemplary effects are not limited, and in the actual use process, the contact without changing the template can be performed according to the requirement, so that more coating changes can be extended, and the appearance is attractive and convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a surface coating device of no aldehyde panel processing usefulness, includes baffle (1) of setting on the flush coater, its characterized in that: a lifting cylinder (11) is arranged at the bottom of the partition plate (1), and the lifting cylinder (11) is mounted on the spraying machine;

and a plurality of through grooves (12) are formed in the partition plate (1), the through grooves (12) form a complete pattern, a combined baffle (2) which can move integrally and deform in a multi-section combination mode is arranged in each through groove (12), and the combined baffle (2) is utilized to spray different color combinations on the part, without aldehyde, of each through groove (12).

2. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 1, wherein: a plurality of grooves (21) which are in one-to-one correspondence with the through grooves (12) are arranged in the partition board (1), each groove (21) is communicated with the corresponding through groove (12), and the width of each groove (21) is larger than the width of the notch of each through groove (12);

the combined baffle (2) comprises combined plates (3) arranged in the groove (21), the combined plates (3) are arranged in the groove (21) in a sliding mode and partition the through groove (12), first air cylinders (22) are arranged in the groove (21), a sliding seat (23) is arranged at the output end of each first air cylinder (22), and the sliding seat (23) is in sliding contact with the inner wall of the groove (21) so that the sliding seat (23) can be displaced directionally;

the combined plate (3) is arranged on one side of the sliding seat (23) far away from the first air cylinder (22), the first air cylinder (22) is used for stretching and contracting to drive the combined plate (3) to expose the part without aldehyde in the through groove (12), and the exposed position is selected according to the combination mode of the combined plate (3).

3. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 2, wherein: the combined board (3) comprises a combined main board (4), the combined main board (4) is installed on a sliding seat (23), a combined support (5) is arranged on one side, away from the sliding seat (23), of the combined main board (4), an elastic soft sleeve (31) is sleeved on the outer side of the combined support (5), the combined main board (4) and the expanded elastic soft sleeve (31) separate the through groove (12), and the combined support (5) is utilized to move to drive the elastic soft sleeve (31) to deform so as to expose areas of different shapes.

4. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 3, wherein: the elastic soft sleeve (31) is made of rubber materials.

5. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 4, wherein: the combined support (5) comprises two fixed support rods (51) which are respectively arranged on two sides of the combined main board (4) and two sleeve rods (52) which respectively correspond to the fixed support rods (51), shifting rods (53) are arranged in the sleeve rods (52) in a sliding mode, an elastic deflection mechanism (6) is arranged between the fixed support rods (51) and the sleeve rods (52), and an elastic deflection mechanism (6) with the same structure is also arranged between the two shifting rods (53) so that the combined support (5) can elastically deflect and deform;

the combined support (5) further comprises a second air cylinder (54), the second air cylinder (54) is installed on the combined main board (4), a connecting plate (55) is arranged at the output end of the second air cylinder (54), and the connecting plate (55) is connected with the elastic deflection mechanism (6) between the two shifting rods (53) so as to drive the combined support (5) to move and deform by utilizing the expansion and contraction of the second air cylinder (54).

6. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 5, wherein: the elastic deflection mechanism (6) comprises a first bearing seat (61) and a second bearing seat (62), the first bearing seat (61) and the second bearing seat (62) are respectively arranged on the fixed support rod (51) and the sleeve rod (52) between the fixed support rod (51) and the sleeve rod (52), and the first bearing seat (61) and the second bearing seat (62) are respectively arranged on the two displacement rods (53) between the two displacement rods (53);

a rotating shaft (63) is arranged between the first bearing seat (61) and the second bearing seat (62), the rotating shaft (63) is simultaneously in rotating connection with the first bearing seat (61) and the second bearing seat (62), a torsion spring (64) is arranged on the outer side of the rotating shaft (63), and two ends of the torsion spring (64) are respectively connected with the first bearing seat (61) and the second bearing seat (62) to provide elastic deflection capacity for the torsion spring;

the connecting plate (55) is connected with a rotating shaft (63) between the two displacement rods (53).

7. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 6, wherein: the combined main board (4) comprises a fixing plate (41) and a bearing plate (42), the fixing plate (41) is installed on the sliding seat (23), and the combined bracket (5) is installed on the bearing plate (42);

and a splicing plate (43) is arranged between the fixing plate (41) and the bearing plate (42), a connecting piece (7) is arranged on the splicing plate (43), the connecting piece (7) is respectively detachably connected with the fixing plate (41) and the bearing plate (42), an accommodating groove (44) corresponding to the splicing plate (43) is formed in the inner wall of the groove (21), a driving piece (8) is arranged in the accommodating groove (44), the driving piece (8) drives the splicing plate (43) to independently slide into the accommodating groove (44), and the shielding position of the splicing plate (43) is exposed for spraying.

8. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 7, wherein: the connecting piece (7) is including installing respectively magnet one (71) and magnet two (72) that are close to loading board (42) one side that splice plate (43) is close to fixed plate (41) one side, and fixed plate (41) is close to one side of splice plate (43) and is provided with magnet three (73), just one side that loading board (42) is close to splice plate (43) is provided with magnet four (74), magnet one (71) and magnet three (73) opposite face polarity are opposite, magnet two (72) and magnet four (74) opposite face polarity are opposite, just magnet three (73) and magnet four (74) polarity opposite faces are the same, so that splice plate (43) and with fixed plate (41) and loading board (42) releasable connection.

9. The surface finishing apparatus for aldehyde-free board processing as set forth in claim 8, wherein: the driving piece (8) comprises a magnet five (81) arranged at one end, close to the containing groove (44), of the splicing plate (43), a first electromagnet (82) is arranged in the containing groove (44), the splicing plate (43) is contained in the containing groove (44) by utilizing the magnetic force generated by electrifying the first electromagnet (82), and the splicing plate (43) is ejected out of the containing groove (44) to reset when reverse current is electrified.

10. The surface finishing apparatus for use in the processing of aldehyde-free sheet materials as claimed in claim 9, wherein: a magnet six (83) is arranged at one end, far away from the accommodating groove (44), of the splicing plate (43), a second electromagnet (84) is arranged on the inner wall of the groove (21) in a position right opposite to the magnet six (83), and the splicing plate (43) is provided with auxiliary force by means of matching of the second electromagnet (84) and the magnet six (83).