CN115999808A - Glue applying and spraying equipment for plywood - Google Patents
Glue applying and spraying equipment for plywood Download PDFInfo
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- CN115999808A CN115999808A CN202211598693.XA CN202211598693A CN115999808A CN 115999808 A CN115999808 A CN 115999808A CN 202211598693 A CN202211598693 A CN 202211598693A CN 115999808 A CN115999808 A CN 115999808A
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- recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses glue applying and spraying equipment for plywood, and belongs to the field of spraying devices. Comprising the following steps: the gluing device comprises a first conveying part, a gluing part and a second conveying part which are sequentially arranged, wherein the gluing part comprises a transition grid plate positioned at the lower side and a spraying device positioned at the upper side, the first conveying part conveys a wood board to be glued to the transition grid plate, and the second conveying device is used for conveying the wood board glued by the spraying device to the next station; the recovery part comprises a recovery groove positioned at the lower side of the transition grid plate, a blanking port is arranged at one side end part of the recovery groove, a recovery material containing box positioned at the lower side of the blanking port is further arranged at the lower side of the recovery material containing box, a discharge port communicated with a recovery pipeline is arranged on the recovery material containing box, a drawer filter is arranged on the recovery material containing box in a extractable manner, and an adhesive flowing out of the blanking port enters the recovery pipeline through the discharge port after being filtered by the drawer filter. The invention recycles the adhesive to avoid the pollution of the adhesive to the environment.
Description
Technical Field
The invention relates to the field of spraying devices, in particular to glue applying spraying equipment for plywood processing.
Background
The plywood is one of the common materials of furniture, is one of three artificial boards, and can be used as a material for aircrafts, ships, trains, automobiles, buildings, packaging boxes and the like. The plywood is a three-layer or multi-layer wood board formed by gluing by an adhesive, and in the processing process of the plywood, a plurality of single sheets are required to be compounded by the adhesive, and the adhesive is generally applied or sprayed to realize a gluing process. MDI adhesives, also known as isoacid ester adhesives, are formaldehyde-free and have a high molecular morphology and are not easily volatilized, so that they are relatively environmentally friendly and safe adhesives, and have been widely used in recent years for the production of high-performance artificial boards.
The MDI adhesive has the characteristics of high viscosity and easy reaction when being contacted with water in the air, and is generally applied by adopting a pressure spraying mode in the plywood sizing equipment adopting the MDI adhesive so as to ensure good sizing uniformity, but a large amount of fog drops can be generated in the spraying process, so that the sizing spraying equipment needs to recycle the adhesive in other areas except the wood board so as to avoid the waste of the MDI and the pollution to the environment.
Disclosure of Invention
To this end, the invention proposes a glue spraying device for plywood, which is capable of recycling MDI adhesive.
Aiming at the technical problems, the invention provides the following technical scheme:
a glue spraying apparatus for plywood, comprising: the glue applying device comprises a first conveying part, a glue applying part and a second conveying part which are sequentially arranged, wherein the glue applying part comprises a transition grid plate positioned at the lower side and a spraying device positioned at the upper side, the first conveying part is used for conveying a wood board to be glued onto the transition grid plate, the spraying device is used for spraying and applying glue to the wood board on the transition grid plate, and the second conveying device is used for conveying the glued wood board to the next station; the recovery part comprises a recovery groove positioned at the lower side of the transition grid plate, a blanking port is arranged at one side end part of the recovery groove, the recovery part further comprises a recovery material accommodating box positioned at the lower side of the blanking port, a discharge port communicated with a recovery pipeline is arranged at the lower side of the recovery material accommodating box, a drawer filter is arranged on the recovery material accommodating box, the drawer filter is arranged on the recovery material accommodating box in a extractable manner, and an adhesive flowing out of the blanking port enters the recovery pipeline through the discharge port after being filtered by the drawer filter.
In some embodiments of the present invention, a screw shaft is disposed in the recovery tank, and the screw shaft rotates under the action of a first driving device and conveys the adhesive to the blanking port side.
In some embodiments of the present invention, the recovery tank is a v-shaped tank, the tank bottom of the recovery tank is inclined in a horizontal direction, and the blanking port is located at the lowest inclined end of the recovery tank.
In some embodiments of the present invention, the spraying device includes: the spraying cover body with an opening at the lower side is provided with a plurality of spraying holes at the upper side, and an electronic spray gun is inserted in the spraying holes; the spray rod is positioned on the upper side of the spray cover body, and is provided with a plurality of interfaces communicated with the electronic spray gun through a pipeline; and the suction cover is arranged on the spraying cover body and is used for sucking the atomized adhesive in the area between the spraying cover body and the wood board to be glued.
In some embodiments of the present invention, the spraying cover includes a first plate body near the first conveying part and a second plate body near the second conveying part, the suction cover is detachably mounted on the first plate body and the second plate body, and a bottom end surface of the suction cover extends to a bottom end of the spraying cover.
In some embodiments of the present invention, a guide grid plate is disposed at the bottom of the suction hood, and the guide grid plate is used for guiding the adhesive condensed in the suction hood into the recovery tank through the transition grid plate.
In some embodiments of the present invention, the first conveying unit and the second conveying unit each include: the conveying roller is rotatably arranged on the supporting frame, and the conveying belt is arranged on the conveying roller, and the conveying roller drives the conveying belt to move under the action of the second driving device.
In some embodiments of the present invention, the height of the conveyor belt of the first conveying portion is greater than the height of the conveyor belt of the second conveying portion, the transition grid is lower than the height of the conveyor belt of the first conveying portion, and the transition grid is higher than or flush with the conveyor belt of the second conveying portion.
In some embodiments of the present invention, the transition grid plate is fixed to the support frame of the first conveying part through a first connecting plate, and the transition grid plate is fixed to the support frame of the second conveying part through a second connecting plate.
In some embodiments of the present invention, the transition grid is mounted to the recovery tank by a support plate located on the underside thereof.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
in the gluing spraying equipment for the plywood, the first conveying part is used for conveying the wood board to be glued to the transition grid plate, the spraying equipment is used for spraying the wood board passing through the transition grid plate, and the second conveying device is used for conveying the glued wood board to the next station; the recovery part for recovering the adhesive is arranged at the lower side of the transition grid plate, the adhesive suspended between the spraying equipment and the transition grid plate during spraying can be collected and conveyed to the side of the adhesive supply device through the recovery pipeline for recycling, the drawer filter is arranged in the recovery material accommodating box of the recovery part and used for filtering impurities mixed in the adhesive, and the drawer structure is convenient for cleaning the filter.
Drawings
The objects and advantages of the present invention will be better understood by describing in detail preferred embodiments thereof with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the construction of one embodiment of the spray application apparatus of the plywood of the invention;
FIG. 2 is a schematic view of the structure of the glue applying and recovering part in the spraying and gluing equipment of the plywood;
FIG. 3 is a schematic view of the structure of the recovery section of the spray glue application apparatus of the plywood of the invention;
FIG. 4 is a cross-sectional view of the recovery section of the spray glue application apparatus of the plywood of the invention;
FIG. 5 is a schematic structural view of a spraying device in the spraying and sizing equipment of the plywood;
FIG. 6 is a schematic view of the structure of the first conveying section, the transition grid and the second conveying section in the spraying and sizing equipment for plywood of the invention;
FIG. 7 is a schematic view of the structure of a transition grid in the spray application apparatus of the plywood of the invention;
FIG. 8 is a schematic view of the structure of the first conveying section in the spraying and sizing apparatus for plywood according to the present invention;
FIG. 9 is a schematic view of the construction of a second suction device in the spray application apparatus of plywood according to the invention;
fig. 10 is a schematic structural view of a pinch roller mechanism in the spraying and sizing device of the plywood of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Fig. 1 and 2 show a specific embodiment of a spray-coating gluing device (hereinafter referred to as gluing device) for a plywood according to the invention for providing MDI glue to a board to be glued, which glued board is used for instance for making plywood and the like.
Referring to fig. 1 and 2, the sizing apparatus includes: a first conveying part 10A, a sizing part 20 and a second conveying part 10B which are sequentially arranged along the conveying direction of the production line, wherein the sizing part 20 comprises a transition grid plate 21 and a spraying device 22 positioned on the upper side of the transition grid plate 21; the first conveying part 10A conveys the wood board to be glued to the transition grid plate 21, the spraying device 22 is used for spraying and gluing the wood board on the transition grid plate 21, and the second conveying part 10B is used for conveying the glued wood board to the next station. The glue applying apparatus further comprises a recovery portion 50 located at the lower side of the transition grid 21, for recovering the excessive liquid adhesive sprayed by the spraying device 22 and draining the liquid adhesive into a recovery pipeline, and the adhesive in the recovery pipeline is conveyed to the feeding device side again through a filtering device, a recovery pump and other devices.
As shown in fig. 2-4, the recovery unit 50 includes a recovery tank 51, a blanking port 51a is disposed at an end of one side of the recovery tank 51, and a recovery material accommodating box 52 disposed below the blanking port 51a, a discharge port 52a communicating with a recovery pipeline is disposed below the recovery material accommodating box 52, a drawer filter 53 is disposed on the recovery material accommodating box 52, and the drawer filter 53 is retractably mounted on the recovery material accommodating box 52. The large droplets of the atomized adhesive produced in the spray coating cover 221 and between the spray coating cover 221 and the transition grid 21 after spraying by the spraying device 22 fall into the recovery tank 51 through the grid 21, further flow into the recovery tank 52 through the blanking port 51a, are filtered by the drawer filter 53, and flow into the lower part of the recovery tank 52 through the discharge port 52a into the recovery pipeline. After a period of production, the drawer filter 53 may be withdrawn for cleaning. The recycling of the adhesive can be realized by adopting the recycling part 50, the pollution of the adhesive to production equipment is reduced, and the filter is cleaned conveniently and rapidly by adopting a drawer type filter structure.
As shown in fig. 3 and 4, a screw shaft 54 is provided in the recovery tank 51, and the screw shaft 54 is rotated by a first driving device 55 to convey the adhesive to the blanking port 51a side.
Specifically, the recovery tank 51 is a v-shaped tank, the tank bottom of the recovery tank 51 is inclined in the horizontal direction, and the blanking port 51a is located at the lowest end of the recovery tank 51.
Referring to fig. 5, there is shown a spraying device 22 of an embodiment of the sizing equipment of the present invention, where the spraying device 22 includes a spraying cover 221 with an opening at the lower side and a spraying rod 222 located at the upper side of the spraying cover 221, a plurality of spraying holes 221a are provided at the upper side of the spraying cover 221, an electronic spray gun 224 is inserted into the spraying holes 221a, and a plurality of interfaces connected with the electronic spray gun 224 are provided on the spraying rod 222; more specifically, the plurality of electronic spray guns 224 are arranged in a row along the width direction of the spraying cover 221, the spraying cover 221 is spaced from the transition grid 21, and when the wood board with spraying is moved onto the transition grid 21 under the action of the first conveying part 10A, the electronic spray guns 224 are controlled to perform spraying treatment, so that MDI adhesive is sprayed onto the surface of the wood board along the width direction, and uniformly sprayed onto the whole surface of the wood board along with uniform movement of the wood board.
As shown in fig. 5, a suction hood 223 is further installed on the spray hood 221, and the suction hood 223 is finally communicated with a first suction device (not shown in the drawing) for sucking the atomized adhesive in the area between the spray hood 221 and the wood board to be glued. More specifically, the spraying cover 221 includes a first plate 221B near the first conveying portion 10A and a second plate 221c near the second conveying portion 10B, and the first plate 221B and the second plate 221c are detachably connected with a plurality of suction covers 223, and bottom surfaces of the plurality of suction covers 223 cover the width of the transition grid 21 along the vertical wood running direction.
The bottom end surface of the suction hood 223 extends to the bottom end of the spraying hood 221, and the suction hood 223 is formed into an approximately trapezoid hood structure with a wide bottom and a narrow top, and the hood structure facilitates the suction air flow to be smoother, and reduces the energy consumption of the first suction device.
As shown in fig. 5, the bottom of the suction hood 223 is provided with a deflector plate 223a which is obliquely arranged, and the deflector plate 223a is used for guiding the large droplets of the atomized adhesive in the suction hood 223 after condensation to the transition plate 21.
Referring to fig. 8, in the sizing equipment of the present invention, the first conveying section 10A and the second conveying section 10B each include: the conveying device comprises a supporting frame 11, a conveying roller 12 rotatably arranged on the supporting frame 11 and a conveying belt 13 arranged on the conveying roller 12, wherein the conveying roller 12 drives the conveying belt 13 to move under the action of a second driving device 16. The conveyer belt 13 is provided with a plurality of through holes 13a, and the conveyer belt 13 is communicated with a second negative pressure suction device through the through holes 13 a. Like this, the plank on the conveyer belt 13 then closely butt on the conveyer belt 13 under the effect of second negative pressure suction device, increased the frictional force between plank and the conveyer belt 13, avoid the plank to produce the problem of stall when on the unpowered transition grid plate 21, make the spraying homogeneity of plank better.
Specifically, as shown in fig. 8 and 9, the second negative pressure suction device includes a suction box 14 located at the lower side of the conveyor belt 13, and a suction power device (not shown) in communication with the suction box 14 through a pipe. The upper surface of the suction box 14 is provided with a plurality of suction holes 14a, the suction holes 14a correspond to the through holes 13a on the conveyor belt 13, and the lower side of the suction box 14 is provided with a suction interface 14b for communicating with the suction power device.
In order to further increase the friction between the wood board and the conveyor belt 13, so that the wood board smoothly passes through the area where the transition grid plate 21 is located, as shown in fig. 1 and 10, the first conveying portion 10A further includes a pinch roller mechanism 15, the pinch roller mechanism 15 is disposed near the glue applying portion 20, the pinch roller mechanism 15 includes a pinch roller support 151 mounted on the support frame 11, and at least one pinch roller 153 pivotally connected to the pinch roller support 151 through a support rod 152, and the pinch roller 153 abuts against the conveyor belt 13. An elastic member 154 is disposed between the pinch roller 153 and the pinch roller support 151, and an elastic force of the elastic member 154 acts on the pinch roller 153 to keep the pinch roller pressed against the conveyor belt 13. In order to avoid the pinch roller 153 to deform the wood board, the pinch roller 153 is a rubber wheel, when the wood board moves to the area where the pinch roller 153 is located under the action of the conveying belt 13 of the first conveying part 10A, the wood board passes through the area between the pinch roller 153 and the conveying belt 13, and the pinch roller 153 enables the wood board to be always abutted against the conveying belt 13 under the action of the elastic piece 154, so that stall is avoided when the wood board passes through the transition grid plate 21.
Referring to fig. 6, in the sizing apparatus of the present invention, the height of the conveyor belt 13 of the first conveying portion 10A is greater than the height of the conveyor belt 13 of the second conveying portion 10B, the transition grid 21 is lower than the height of the conveyor belt 13 of the first conveying portion 10A, so as to ensure that the wood board smoothly passes through the transition section where the first conveying portion 10A is connected with the transition grid 21, and the transition grid 21 is higher than or flush with the conveyor belt 13 of the second conveying portion 10B, so as to ensure that the wood board smoothly passes through the transition section where the transition grid 21 is connected with the second conveying portion 10B, thereby avoiding the occurrence of the phenomenon of board clamping plate, and ensuring the sizing effect of the wood board.
Specifically, in one embodiment, the transition grid 21 is fixed to the support frame 11 of the first conveying portion 10A by a first connection plate 211, and the transition grid 21 is fixed to the support frame 11 of the second conveying portion 10B by a second connection plate 212. More specifically, the upper surface of the first connecting plate 211 is flush with the conveyor belt 13 of the first conveying portion 10A, the lower end of the first connecting plate 211 is fixedly connected with the transition grid 21, and the upper surface of the second connecting plate 212 is flush with the upper surface of the transition grid 21 and the conveyor belt 13 of the second conveying portion 10B.
Specifically, as shown in fig. 7, in another embodiment, the transition grid 21 is connected to the recovery tank 51 by two support plates 215. More specifically, the transition grid plate 21 includes a supporting bar 213 disposed in parallel and a plurality of grid bars 214 connected between the two supporting bars 213, the lower sides of the two supporting bars 213 are respectively provided with a supporting plate 215 perpendicular to the supporting bars 213, the supporting plates 215 are inserted into the wall surfaces of the recovery tank 51 along the front-back direction, on one hand, reliable support of the transition grid plate 21 is achieved, and on the other hand, sealing connection between the transition grid plate 21 and the recovery tank 51 can be achieved, so that atomized adhesive is prevented from overflowing along the gap between the two.
More specifically, the first connecting plate 211 and the second connecting plate 212 are respectively welded to two supporting bars 213.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.
Claims (10)
1. A glue spraying device for plywood, comprising:
the glue applying device comprises a first conveying part, a glue applying part and a second conveying part which are sequentially arranged, wherein the glue applying part comprises a transition grid plate positioned at the lower side and a spraying device positioned at the upper side, the first conveying part is used for conveying a wood board to be glued onto the transition grid plate, the spraying device is used for spraying and applying glue to the wood board on the transition grid plate, and the second conveying device is used for conveying the glued wood board to the next station;
the recovery part comprises a recovery groove positioned at the lower side of the transition grid plate, a blanking port is arranged at one side end part of the recovery groove, the recovery part further comprises a recovery material accommodating box positioned at the lower side of the blanking port, a discharge port communicated with a recovery pipeline is arranged at the lower side of the recovery material accommodating box, a drawer filter is arranged on the recovery material accommodating box, the drawer filter is arranged on the recovery material accommodating box in a extractable manner, and an adhesive flowing out of the blanking port enters the recovery pipeline through the discharge port after being filtered by the drawer filter.
2. The glue spraying device for plywood according to claim 1, wherein a screw shaft is provided in the recovery tank, and the screw shaft rotates under the action of the first driving means and conveys the adhesive to the blanking port side.
3. The glue spraying apparatus for plywood according to claim 2, wherein the recovery tank is v-shaped, the tank bottom of the recovery tank is inclined in a horizontal direction, and the blanking port is located at the inclined lowermost end portion of the recovery tank.
4. A glue spraying device for plywood according to claim 1, wherein said spraying means comprises:
the spraying cover body with an opening at the lower side is provided with a plurality of spraying holes at the upper side, and an electronic spray gun is inserted in the spraying holes;
the spray rod is positioned on the upper side of the spray cover body, and is provided with a plurality of interfaces communicated with the electronic spray gun through a pipeline;
and the suction cover is arranged on the spraying cover body and is used for sucking the atomized adhesive in the area between the spraying cover body and the wood board to be glued.
5. The glue spraying apparatus of claim 4, wherein the spraying cover comprises a first plate proximate the first delivery section and a second plate proximate the second delivery section, the suction cover being removably mounted to the first plate and the second plate, the bottom end surface of the suction cover extending to the bottom end of the spraying cover.
6. The glue spraying apparatus for plywood according to claim 5, wherein the bottom of said suction hood is provided with a deflector grid which is disposed obliquely, said deflector grid being used for guiding the adhesive condensed in the suction hood into said recovery tank through said transition grid.
7. The glue spraying apparatus of claim 1, wherein the first conveyor section and the second conveyor section each comprise: the conveying roller is rotatably arranged on the supporting frame, and the conveying belt is arranged on the conveying roller, and the conveying roller drives the conveying belt to move under the action of the second driving device.
8. The glue spray apparatus of claim 7 wherein the conveyor belt height of the first conveyor section is greater than the conveyor belt height of the second conveyor section, the transition grid is lower than the conveyor belt height of the first conveyor section, and the transition grid is higher than or flush with the conveyor belt of the second conveyor section.
9. The glue spraying apparatus of claim 7, wherein the transition grid is secured to the support frame of the first conveying section by a first connection plate and the transition grid is secured to the support frame of the second conveying section by a second connection plate.
10. A glue spraying device for plywood according to claim 1, characterised in that the transition grid is mounted to the recovery tank by means of a support plate on its underside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598693.XA CN115999808A (en) | 2022-12-14 | 2022-12-14 | Glue applying and spraying equipment for plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598693.XA CN115999808A (en) | 2022-12-14 | 2022-12-14 | Glue applying and spraying equipment for plywood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115999808A true CN115999808A (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211598693.XA Pending CN115999808A (en) | 2022-12-14 | 2022-12-14 | Glue applying and spraying equipment for plywood |
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| Country | Link |
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| CN (1) | CN115999808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117380435A (en) * | 2023-12-13 | 2024-01-12 | 常州天正智能装备有限公司 | Conveying system for arc-shaped reflecting plate in optical device and working method thereof |
-
2022
- 2022-12-14 CN CN202211598693.XA patent/CN115999808A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117380435A (en) * | 2023-12-13 | 2024-01-12 | 常州天正智能装备有限公司 | Conveying system for arc-shaped reflecting plate in optical device and working method thereof |
| CN117380435B (en) * | 2023-12-13 | 2024-03-15 | 常州天正智能装备有限公司 | Conveying system for arc-shaped reflecting plate in optical device and working method thereof |
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