CN116901198A - Glue applying equipment for plywood - Google Patents
Glue applying equipment for plywood Download PDFInfo
- Publication number
- CN116901198A CN116901198A CN202311084462.1A CN202311084462A CN116901198A CN 116901198 A CN116901198 A CN 116901198A CN 202311084462 A CN202311084462 A CN 202311084462A CN 116901198 A CN116901198 A CN 116901198A
- Authority
- CN
- China
- Prior art keywords
- conveying
- spraying
- area
- plate
- spray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003292 glue Substances 0.000 title claims abstract description 37
- 239000011120 plywood Substances 0.000 title claims abstract description 27
- 238000005507 spraying Methods 0.000 claims abstract description 75
- 239000002023 wood Substances 0.000 claims abstract description 42
- 238000007664 blowing Methods 0.000 claims abstract description 34
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 23
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 14
- 238000004513 sizing Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 28
- 238000011084 recovery Methods 0.000 description 23
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses glue applying equipment for plywood, and belongs to the field of spraying devices. The device comprises a first conveying area, a sizing area and a second conveying area which are sequentially arranged along the conveying direction of a production line, wherein the first conveying area is provided with a first conveying device, the second conveying area is provided with a second conveying device, and the sizing area is provided with a transition grid plate and a spraying device positioned on the upper side of the transition grid plate; the first conveying device is used for conveying the wood boards to be glued to the transition grid plate, the spraying device is used for spraying and gluing the wood boards moving to the gluing area, and the second conveying device is used for conveying the glued wood boards to the next station; the glue applying device is positioned in the area adjacent to the second conveying area, and the air outlet of the air blowing device faces downwards. The invention can avoid the problem that the atomized adhesive is brought to the outer side of the gluing area by the movable wood board.
Description
Technical Field
The invention relates to the technical field of plywood processing, in particular to glue applying equipment for plywood processing.
Background
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.
The pressure spraying mode is adopted for sizing, so that better sizing uniformity can be ensured, and the application is more and more widely achieved. In general, the pressure spraying sizing equipment adopts a first conveying device to drive a wood board to be sprayed to move along the running direction of a production line, moves to the lower side of the spraying device to carry out atomization spraying, and conveys the sprayed wood board to the next station through a second conveying device. The adhesive is sprayed onto the wood board after being atomized by the pressure spraying mode, in order to avoid that atomized adhesive liquid drops overflow to the outside, a cover body is usually arranged in the area where the spraying device is arranged, but the wood board is required to be moved onto the second conveying device by the first conveying device, part of atomized adhesive liquid drops can be inevitably carried out in the moving process of the wood board, and the conveying belt of the second conveying device is polluted by long-time accumulation, so that the conveying reliability of the wood board is reduced.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the atomized adhesive is brought to the outer side of a spraying area by a moving wood board in the operation process of the conventional gluing equipment of the plywood.
Aiming at the technical problems, the invention provides the following technical scheme:
a glue application apparatus for plywood, comprising: the first conveying area is provided with a first conveying device, the second conveying area is provided with a second conveying device, and the sizing area is provided with a transition grid plate and a spraying device positioned on the upper side of the transition grid plate; the first conveying device is used for conveying the wood boards to be glued to the transition grid plate, the spraying device is used for spraying and gluing the wood boards moving to the gluing area, and the second conveying device is used for conveying the glued wood boards to the next station; the glue applying device is positioned in the area adjacent to the second conveying area, and the air outlet of the air blowing device faces downwards.
In some embodiments of the present invention, the air blowing device includes an air blowing pipe extending along a horizontal direction, the extending direction of the air blowing pipe is perpendicular to the conveying direction of the production line, a plurality of air outlets are arranged at intervals on the lower side of the air blowing pipe, and a nozzle is arranged on the air outlets.
In some embodiments of the present invention, the spraying surface formed by the plurality of sprayers covers the extending direction of the air blowing pipe.
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 a 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 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 glue application area is further provided with an anti-overflow plate, one end of which is mounted on the spray cap body or the suction cap, and the other end of which extends in a direction approaching the second conveying area.
In some embodiments of the invention, the spill plate is disposed obliquely upward from the side closer to the spray device to the end closer to the second delivery area.
In some embodiments of the present invention, the air outlet of the air blowing device is spaced apart from the free end of the spill plate in a horizontal direction, and the air outlet of the air blowing device is located at an upper side of the spill plate.
In some embodiments of the present invention, the spray coating cap body includes a first cover plate proximate the first delivery zone and a second cover plate proximate the second delivery zone, the suction cap is mounted to the second cover plate, and a bottom end surface of the suction cap extends to a bottom end of the spray coating cap body.
In some embodiments of the present invention, the glue application area is further provided with a guide plate, one end of which is mounted on the first cover plate of the spray coating cover body, and the other end of which extends in a direction approaching the first conveying area.
In some embodiments of the invention, the guide plate is disposed obliquely upward from the side close to the spraying device to the end close to the first conveying area.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
in the gluing equipment of the plywood, the air blowing device is arranged in the area adjacent to the gluing area and the second conveying area, the air outlet of the air blowing device faces downwards, and after the wood board moves onto the second conveying device, high-pressure air is blown onto the wood board by controlling the air blowing device, so that the atomized adhesive is prevented from overflowing to the side of the second conveying device along the surface of the wood board, and the problem that the conveyer belt of the atomized adhesive is adhered to the support frame body due to the fact that the atomized adhesive falls onto the second conveying device is avoided.
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 glue application apparatus of the plywood of the invention;
FIG. 2 is a schematic view of the structure of a spraying device in the glue applying equipment of the plywood;
FIG. 3 is a front view of one embodiment of the glue application device of the plywood of the invention;
FIG. 4 is a schematic structural view of a spraying device and an air blowing device in the glue applying device of the plywood;
FIG. 5 is a schematic structural view of a spraying device and a recycling device in the glue applying equipment of the plywood;
FIG. 6 is a schematic view of the structure of the recovery section of the glue application apparatus of the plywood of the invention;
fig. 7 is a cross-sectional view of the recovery section of the glue application apparatus 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 shows a specific embodiment of a glue application device (hereinafter referred to as glue application device) for applying MDI glue to a board a (which is used to make plywood, etc. after glue application), although other glue that can be atomized may be applied.
Referring to fig. 1 and 2, the sizing equipment comprises a first conveying area 10A, a sizing area 20 and a second conveying area 10B which are sequentially arranged along the conveying direction of the production line, wherein the first conveying area 10A is provided with a first conveying device, the second conveying area 10B is provided with a second conveying device, and the sizing area 20 is provided with a transition grid plate 21 and a spraying device 22 positioned on the upper side of the transition grid plate 21; the first conveying device conveys the wood board A to be glued to the transition grid plate 21, the spraying device 22 is used for spraying and gluing the wood board A on the transition grid plate 21, and the second conveying device is used for conveying the glued wood board A to the next station.
Wherein the first conveying device and the second conveying device respectively comprise: the conveying belt 13 for supporting the wood board A is provided with a plurality of through holes 13a, and the conveying belt 13 is communicated with a negative pressure suction device (not shown) through the through holes 13 a. Like this, plank A through on conveyer belt 13 then closely butt on conveyer belt 13 under negative pressure suction device's effect, increased the frictional force between plank A and the conveyer belt 13, avoided plank A to produce the problem of stall when on unpowered transition grid board 21, make plank A's spraying homogeneity better.
Referring to fig. 2, there is shown a spraying device 22 of an embodiment of the sizing equipment of the present invention, wherein the spraying device 22 comprises a spraying cover 221 with an opening at the lower side, and the spraying cover 221 spans over the transition grid 21, that is, the length direction of the spraying cover 221 is perpendicular to the conveying direction of the wood board a; the upper side of the spraying cover 221 is provided with a plurality of spraying holes 221a at intervals along the length direction, the spraying holes 221a are inserted with spray guns 224, the nozzle of each spray gun 224 is opposite to the transition grid plate 21, when the wood board A moves onto the transition grid plate 21 under the action of the first conveying device, the spray guns 224 are controlled to spray so that the MDI adhesive is sprayed onto the surface of the wood board A along the width direction and uniformly sprayed onto the whole surface of the wood board A along with uniform movement of the wood board A.
In order to prevent the atomized adhesive from being carried to the outside of the glue application area 20 by the moving wood board a, as shown in fig. 1, the glue application apparatus further comprises a blowing device 30, wherein the blowing device 30 is located in the area where the glue application area 20 is adjacent to the second conveying area 10B, that is, in the upper area where the second conveying device is adjacent to the transition grid 21, the air outlet of the blowing device 30 faces downward, and when the wood board a moves onto the second conveying device, the blowing device 30 is controlled to blow high-pressure air onto the wood board a, so that the atomized adhesive is prevented from overflowing to the side of the second conveying device along the surface of the wood board a.
Specifically, the air blowing device 30 includes an air blowing pipe 31 crossing the upper side of the board a, the air blowing pipe 31 is connected with a high-pressure supply pipeline, the air blowing pipe 31 extends along the horizontal direction, the extending direction (i.e. the first direction indicated by the arrow a in fig. 1) of the air blowing pipe 31 is perpendicular to the conveying direction of the production line, a plurality of air outlets are arranged at intervals on the lower side of the air blowing pipe 31, and a spray nozzle is arranged on the air outlets.
More specifically, the air outlet direction of the air outlet is perpendicular to the board surface of the board a, the spraying surfaces of the spray heads are fan-shaped, and the spray heads form a spraying surface capable of covering the first direction a, so that the atomized adhesive can be prevented from blowing to other areas except the gluing area 20.
As shown in fig. 2, 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 a to be glued. More specifically, the spray coating cover 221 includes a first cover plate 221b close to the first conveying device and a second cover plate 221c close to the second conveying device, and a plurality of suction covers 223 are connected to the second cover plate 221c, and the bottom end surfaces of the plurality of suction covers 223 cover the width of the transition grid 21 along the running direction of the vertical wood board a.
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. 2, the bottom of the suction hood 223 is provided with a diversion grid plate which is obliquely arranged, and the diversion grid plate is used for diversion of large droplets of atomized adhesive in the suction hood 223 after condensation onto the transition grid plate 21.
Specifically, as shown in fig. 3 and 4, the spraying device 22 further includes an anti-overflow plate 225, one end of the anti-overflow plate 225 is connected to the lower side of the suction hood 223, and the other end extends in a direction approaching the second conveying device, and the anti-overflow plate 225 is substantially parallel to the board a moving in the area, which can keep the atomized adhesive overflowing along the opening side of the spraying hood 221 in the area between the anti-overflow plate 225 and the board a, and the amount of the atomized adhesive gradually decreases along the extending direction of the anti-overflow plate 225 to reduce the overflowing amount thereof.
More specifically, the spill plate 225 is disposed obliquely upward from the side close to the spraying device 22 (i.e., the side of the suction hood 223) to the side close to the second conveying device (i.e., the free end of the spill plate 225), which enables the liquefied adhesive in the lower side region of the spill plate 225 to flow out along the inclined plate surface toward the spraying device 22 side into the recovery device 50 of the sizing apparatus.
Specifically, the air outlet of the air blowing device 30 is spaced from the free end of the spill plate 225 in the horizontal direction, and the air outlet of the air blowing device 30 is located at the upper side of the spill plate 225, which can prevent the atomized air at the free end of the spill plate 225 from overflowing upwards.
As shown in fig. 3 and 4, the spraying device 22 further includes a guiding plate 226 for guiding the wood board a to the lower side of the spraying cover 221, wherein one end of the guiding plate 226 is connected to the first cover plate 221b of the spraying cover 221, and the other end extends in a direction approaching the first conveying area 10A (the area where the first conveying device is located), so that the problem that the front end of the wood board a is warped too much to interfere with the first cover plate 221b of the spraying cover 221 can be avoided.
More specifically, the guide plate 226 is disposed obliquely upward from the side close to the spraying device 22 to the end close to the first conveying area 10A, i.e., the free end of the guide plate 226 is spaced relatively far from the conveyor belt 13 of the first conveying device, so that the wood board a can enter the lower side of the guide plate 226; and the inclined guide plates 226 facilitate guiding the wood board a to the surface of the transition grid 21.
Specifically, referring to fig. 2-4, the spray gun 224 is an electronic spray gun 224, that is, the switch of the spray gun 224 is controlled by an electromagnetic valve, the spraying device 22 further includes a wire pipe 229 located on the upper side of the spraying cover 221, a junction box 220 is disposed at one side end of the wire pipe 229, a signal wire of the electronic spray gun 224 is connected to the junction box 220 along the wire pipe 229, and the junction box 220 is connected to a main controller through a communication interface, so that signals of a plurality of electronic spray guns 224 can be conveniently transmitted to the main controller.
The sizing equipment further comprises a recovery device 50 positioned at the lower side of the transition grid plate 21 and used for recovering the redundant liquid adhesive during spraying by the spraying device 22 and draining the redundant 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. 5-7, the recovery device 50 includes a recovery tank 51, a blanking port 51a is disposed at an end portion of one side of the recovery tank 51, and a recovery material accommodating box 52 disposed at a lower side of the blanking port 51a, a discharge port 52a communicating with a recovery pipeline is disposed at a lower side of 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 device 50 can recycle the adhesive, reduces the pollution of the adhesive to production equipment, and adopts a drawer type filter structure to clean the filter conveniently and rapidly.
As shown in fig. 6 and 7, 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.
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 application apparatus for plywood, comprising:
the first conveying area is provided with a first conveying device, the second conveying area is provided with a second conveying device, and the sizing area is provided with a transition grid plate and a spraying device positioned on the upper side of the transition grid plate; the first conveying device is used for conveying the wood boards to be glued to the transition grid plate, the spraying device is used for spraying and gluing the wood boards moving to the gluing area, and the second conveying device is used for conveying the glued wood boards to the next station;
the glue applying device is positioned in the area adjacent to the second conveying area, and the air outlet of the air blowing device faces downwards.
2. A glue applying apparatus for plywood according to claim 1, wherein,
the blowing device comprises a blowing pipe extending along the horizontal direction, the extending direction of the blowing pipe is perpendicular to the conveying direction of the production line, a plurality of air outlets are arranged on the lower side of the blowing pipe at intervals, and a spray head is arranged on the air outlets.
3. A glue applying apparatus for plywood according to claim 2, wherein the spraying surface formed by said plurality of spraying nozzles covers the extending direction of said air blowing pipe.
4. A glue application apparatus for plywood according to claim 2, 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 a 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 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. A glue application apparatus for plywood according to claim 4, wherein said glue application zone is further provided with a spill-proof plate, one end of said spill-proof plate being mounted to said spray hood or suction hood and the other end extending in a direction approaching said second conveying zone.
6. A glue application apparatus for plywood according to claim 5, wherein said spill-proof plate is disposed obliquely upward from the side near the spraying means to the end near said second conveying section.
7. Glue applying apparatus for plywood according to claim 6, wherein the air outlet of said air blowing means is spaced apart from the free end of said spill plate in the horizontal direction and the air outlet of said air blowing means is located on the upper side of said spill plate.
8. The glue applicator of claim 4, wherein the spray housing includes a first shroud proximate the first delivery area and a second shroud proximate the second delivery area, the suction hood being mounted to the second shroud, a bottom end surface of the suction hood extending to a bottom end of the spray housing.
9. A glue applying apparatus for plywood according to claim 8, wherein said glue applying zone is further provided with a guide plate having one end mounted to said first cover plate of said spray coating enclosure and the other end extending in a direction approaching said first conveying zone.
10. A glue applying apparatus for plywood according to claim 9, wherein said guide plate is disposed obliquely upward from the side close to the spraying means to the end close to said first conveying section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311084462.1A CN116901198A (en) | 2023-08-25 | 2023-08-25 | Glue applying equipment for plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311084462.1A CN116901198A (en) | 2023-08-25 | 2023-08-25 | Glue applying equipment for plywood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116901198A true CN116901198A (en) | 2023-10-20 |
Family
ID=88356652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311084462.1A Pending CN116901198A (en) | 2023-08-25 | 2023-08-25 | Glue applying equipment for plywood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116901198A (en) |
-
2023
- 2023-08-25 CN CN202311084462.1A patent/CN116901198A/en active Pending
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