CN111617899A - Plywood spouts gluey equipment - Google Patents
Plywood spouts gluey equipment Download PDFInfo
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- CN111617899A CN111617899A CN202010516640.3A CN202010516640A CN111617899A CN 111617899 A CN111617899 A CN 111617899A CN 202010516640 A CN202010516640 A CN 202010516640A CN 111617899 A CN111617899 A CN 111617899A
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- glue
- conveying
- manifold
- spraying
- gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
- B05B7/1613—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
Abstract
The invention discloses glue spraying equipment for plywood, which comprises a glue storage system, a glue spraying system and a glue conveying system, wherein the glue storage system comprises a first frame and a glue storage tank; the glue spraying system comprises a second rack and a glue spraying device arranged on the second rack; the glue conveying system comprises a glue conveying device for conveying glue in the glue storage tank to the glue spraying device and a heat preservation device for ensuring constant-temperature conveying of the glue; and a gas delivery device for supplying gas to each nozzle. The glue spraying equipment for the plywood can feed glue at constant temperature, and prevent the glue from being solidified due to temperature reduction in the conveying process, thereby ensuring the fluidity and viscosity of the glue. In addition, plywood spouts gluey equipment adopts the mode of nozzle spraying to carry out the rubber coating to the slab of rubber coating station department, and is not only fast, can evenly spray glue in each position department of slab moreover for the solidification degree of the glue of each position department on the slab is unanimous, improves the spraying effect.
Description
Technical Field
The invention relates to a plywood processing device, in particular to a plywood glue spraying device.
Background
Plywood is a three-layer or multi-layer plate material made up by using wood segments and making them be rotary-cut into single board or sliced into thin wood and using adhesive to make them be glued together, and usually using odd number of layers of single board and making the fibre directions of adjacent layers of single board be mutually perpendicular. The plywood is one of three kinds of artificial boards as one kind of common furniture material, and may be also used in airplane, ship, train, automobile, building, packing box, etc. A group of veneers are typically assembled and glued perpendicular to each other in the direction of the adjacent layers of wood grain, and the skins and inner sheets are typically symmetrically disposed on either side of the center layer or core. The glued veneer is pressed into the wood grain board blank by the criss-cross matching of the glued veneer according to the wood grain direction under the condition of heating or not heating. The number of layers is generally odd, and a few are even. The difference of physical and mechanical properties in the longitudinal and transverse directions is small. The types of plywood commonly used are plywood, plywood and the like. The plywood can improve the utilization rate of the wood and is a main way for saving the wood.
In the plywood processing process, a plurality of single sheets need to be compounded through an adhesive, and therefore, a series of plywood glue spreading machines are available on the market, for example, "a plywood glue spraying process device" disclosed in the invention patent application with the publication number of CN109333691A, the plywood glue spraying process device comprises a machine body, the machine body is of a central symmetrical structure, a fixed rod is fixedly arranged on one side of the machine body, a support plate is fixedly arranged on the other side of the machine body, inserting rods are fixedly arranged on one sides of the fixed rod, clamping blocks are arranged on one sides of the inserting rods, slots are formed in the clamping blocks, the slots are matched with the inserting rods, a reset spring is sleeved on the inserting rods, one end and the other end of the reset spring are respectively and elastically connected with the clamping blocks and the fixed rod, and the fixed rods are. According to the invention, the heater starts to work by turning on the switch of the heater, the glue in the storage tank is heated, the viscosity of the glue can be improved by heating the glue, the glue can be softened, the switch of the glue pump is turned on to start the glue pump to work, and the glue in the storage tanks at two sides is pumped to the spray head to be sprayed out.
However, the glue spraying process device for the plywood only heats the glue in the storage box to soften the glue, but in the glue conveying process, when the glue is conveyed in the glue conveying pipeline, the heat in the glue can be continuously dissipated, so that the temperature of the glue is continuously reduced, when the length of the glue conveying pipeline is increased, the change is more obvious, and thus the glue can be continuously solidified in the conveying process, and the flowability and the viscosity of the glue are influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the plywood glue spraying equipment which can feed glue at a constant temperature and prevent the glue from being solidified due to temperature reduction in the conveying process, so that the flowability and viscosity of the glue are ensured. In addition, plywood spouts gluey equipment adopts the mode of nozzle spraying to carry out the rubber coating to the slab of rubber coating station department, and is not only fast, can evenly spray glue in each position department of slab moreover for the solidification degree of the glue of each position department on the slab is unanimous, thereby improves the spraying effect.
The technical scheme for solving the technical problems is as follows:
a glue spraying device for plywood comprises a glue storage system, a glue spraying system and a glue conveying system for conveying glue in the glue storage system to the glue spraying system, wherein,
the glue storage system comprises a first machine frame and a glue storage tank arranged on the first machine frame;
the glue spraying system comprises a second rack and a glue spraying device arranged on the second rack, wherein the glue spraying device comprises a support arranged on the second rack, glue spraying modules arranged on the support and a control module used for controlling the flow rate of glue sprayed by the glue spraying modules to be consistent, the glue spraying modules are multiple groups, and the glue spraying modules are uniformly arranged on the support along the extending direction of the second rack; each group of glue spraying modules comprises a nozzle;
the glue conveying system comprises a glue conveying device used for conveying glue in the glue storage tank to the glue spraying device and a heat preservation device used for ensuring the constant-temperature conveying of the glue,
the glue conveying device comprises a glue conveying pipeline and a glue conveying mechanism for driving glue to move in the glue conveying pipeline, wherein the glue conveying pipeline comprises a glue manifold and a glue conveying pipe, the glue manifold is arranged on the bracket and extends along the length direction of the second rack; the liquid inlet of each nozzle is communicated with the glue manifold; the glue conveying pipe is used for communicating the glue manifold with the storage tank to realize transitional conveying of glue between the glue storage tank and the glue manifold;
the heat preservation device comprises a first heating interlayer arranged on the glue storage tank and used for heating glue in the glue storage tank, a second heating interlayer used for heating glue in the glue conveying pipeline, a hot water supply device and a hot water circulating conveying device used for driving hot water to circularly flow in the first heating interlayer and the second heating interlayer, wherein the first heating interlayer is wrapped on the outer wall of the glue storage tank, and the second heating interlayer is wrapped on the outer wall of the glue conveying pipeline; the hot water supply device, the first heating interlayer, the second heating interlayer and the hot water circulating and conveying device form a closed loop;
the gas conveying device comprises a gas manifold and a gas conveying mechanism for driving gas to move to the gas manifold; wherein the gas manifold is disposed on the support and extends along a length of the second rack; the gas inlet of each nozzle is in communication with the gas manifold.
Preferably, the glue storage tank comprises an outer tank body arranged on the first frame and an inner tank body arranged inside the outer tank body, wherein a gap between the outer tank body and the inner tank body forms the first heating interlayer; the glue conveying pipeline comprises an inner pipeline and an outer pipeline, and a gap between the inner pipeline and the outer pipeline forms the second heating interlayer.
Preferably, the hot water circulation delivery device comprises a hot water delivery pump and a hot water delivery pipe, wherein the hot water delivery pump, the first heating interlayer, the second heating interlayer and the hot water supply device are communicated through the hot water delivery pipe.
Preferably, be provided with the agitating unit who is used for stirring glue in the first frame, agitating unit includes the stirring rod and is used for driving the stirring rod to carry out the agitator motor that stirs, wherein, the stirring rod stretches into downwards in the inner tank body.
Preferably, the control module comprises a liquid pressure reducing valve arranged between the glue manifold and each nozzle and an air pressure reducing valve arranged between the air manifold and each nozzle, wherein the liquid pressure reducing valve is used for controlling the flow rate of the glue entering each nozzle to be consistent; the gas pressure reducing valve is used for controlling the flow rate of gas entering each nozzle to be consistent.
Preferably, the glue spraying system further comprises a vertical adjusting device for adjusting the height of the glue spraying device, wherein the vertical adjusting device comprises a worm gear lead screw lifter and a vertical driving mechanism, the worm gear lead screw lifter is arranged on the rack, the vertical driving mechanism is used for driving the worm gear lead screw lifter to work, and the worm gear lead screw lifter comprises a lead screw transmission mechanism and a worm and gear mechanism used for driving a lead screw nut in the lead screw transmission mechanism to rotate; the vertical driving mechanism adopts a motor driving or manual driving mode.
Preferably, the glue recycling device further comprises a recycling system for recycling glue, wherein the recycling system comprises a glue recycling tank, a glue recycling groove arranged below the glue spraying device and used for recycling the glue, and a glue recycling pipe communicated with the glue recycling groove, the glue recycling groove is mounted on the second rack through a detachable connecting structure, the cross section area of the bottom of the glue recycling groove is gradually reduced downwards, and a guiding part used for guiding the glue to enter the glue recycling pipe is formed; the inlet end of the glue recovery pipe is communicated with the bottom of the glue recovery tank, the outlet end of the glue recovery pipe is communicated with the inlet end of the glue recovery tank, and the outlet end of the glue recovery tank is communicated with the feed inlet of the glue storage tank; the outlet end of the glue recovery pipe is provided with a glue recovery control valve for opening or closing the outlet end of the glue recovery pipe; the bottom of the glue recycling groove is provided with a filter screen between the inlet end of the glue recycling pipe and the inlet end of the glue recycling pipe, and the filter screen is used for filtering impurities in recycled glue.
Preferably, a diaphragm pump for feeding the glue in the glue recovery tank into the glue storage tank is arranged on the glue recovery tank, wherein a filter is arranged between a liquid inlet end of the diaphragm pump and an outlet end of the glue recovery tank; the gas inlet end and the gas supply device of the diaphragm pump are communicated through a gas conveying pipeline, wherein a pressure reducing valve and an electromagnetic valve are arranged between the gas inlet end and the gas supply device of the diaphragm pump, the pressure reducing valve is used for controlling the flow rate of gas, and the electromagnetic valve is used for controlling the opening and closing of the gas conveying pipeline.
Preferably, the glue spraying system further comprises a cleaning device, wherein the cleaning device comprises a first cleaning mechanism for cleaning the nozzles and a second cleaning mechanism for cleaning the glue manifold and the nozzles, and when the glue spraying device is in standby, the first cleaning mechanism cleans each nozzle; and when the glue spraying device stops, the second cleaning mechanism cleans the glue conveying mechanism and each nozzle.
Preferably, the first cleaning mechanism comprises a cleaning solution manifold and a cleaning solution delivery mechanism for driving the cleaning solution to move to the cleaning solution manifold, wherein the cleaning solution manifold is mounted on the support and extends along the length direction of the second rack; the inlet end of the cleaning liquid manifold is provided with a cleaning liquid control valve for controlling the opening or closing of the cleaning liquid manifold; the cleaning solution manifold is communicated with the liquid inlet of each nozzle; the glue spraying module further comprises a manual three-way ball valve arranged between the nozzle and the glue manifold and the cleaning solution manifold, wherein the lower end of the manual three-way ball valve is communicated with the liquid inlet of the nozzle, one end of the other two ends of the manual three-way ball valve is communicated with the glue manifold, and the other end of the manual three-way ball valve is communicated with the cleaning solution manifold.
Preferably, the second cleaning mechanism comprises a three-way reversing valve arranged between the glue storage tank and the glue conveying mechanism, wherein one end of the three-way reversing valve is communicated with the outlet end of the glue storage tank, one end of the other two ends of the three-way reversing valve is communicated with the barreled cleaning liquid, and the other end of the three-way reversing valve is communicated with the inlet end of the glue conveying mechanism.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the glue conveying system, the first heating interlayer and the second heating interlayer are arranged, the first heating interlayer wraps the outer wall of the glue storage tank, the second heating interlayer wraps the outer wall of the glue conveying pipeline, so that hot water in the first heating interlayer can heat glue in the glue storage tank and keep the glue in a preset temperature range, the second heating interlayer heats the glue in the glue conveying pipeline and keep the glue in the preset temperature range, or the temperature of the glue in the glue storage tank is consistent with the temperature of the glue in the glue conveying pipeline, the glue is conveyed under the constant temperature condition, the glue is guaranteed to have good fluidity and viscosity, the glue can be prevented from being solidified, and the spraying effect is guaranteed.
2. The glue conveying system can ensure that the glue is temporarily stored and conveyed at a constant temperature, so that the glue has good fluidity and viscosity, and the compounding of the plate blank is facilitated.
3. The glue spraying system comprises a plurality of groups of glue spraying modules, and the glue spraying modules are uniformly arranged along the length direction of the rack, so that nozzles are arranged above all positions of a plate blank, and the spraying range of the nozzles covers all the positions on the plate blank; when glue is sprayed, all the nozzles spray glue to the upper surface of the plate blank at the same time, so that the glue is sprayed on all positions of the plate blank. Compared with a roller type coating mode, the glue spraying system disclosed by the invention is higher in spraying speed and efficiency.
4. According to the glue spraying system, the glue spraying modules spray glue onto the plate blank at the same time, so that the curing degree of the glue at each position of the plate blank is the same, and the bonding effect of the glue is ensured.
5. The glue spraying system disclosed by the invention mixes the gas and the glue in the nozzle and then sprays the mixed glue, so that the volume of sprayed glue particles is smaller, and the spraying is more uniform.
Drawings
Fig. 1-4 are schematic structural views of a glue spraying device for plywood according to the present invention, wherein fig. 1 is a schematic perspective view, fig. 2 is a front view, fig. 3 is a top view, and fig. 4 is a left view.
Fig. 5 and 6 are schematic perspective views of two different viewing angles of the glue storage system, the glue feeding system and the recovery system.
Fig. 7-9 are schematic structural diagrams of the glue spraying system, wherein fig. 7 is a schematic perspective structural diagram, fig. 8 is a side view (cross-sectional view), and fig. 9 is a partially enlarged view.
Fig. 10-12 are schematic structural diagrams of the glue spraying system (a part of the frame is removed), wherein fig. 10 and 11 are schematic perspective structural diagrams from two different viewing angles, and fig. 12 is a top view.
Fig. 13 is a block diagram of the glue spraying apparatus for plywood according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1-13, the glue spraying device for plywood of the present invention comprises a glue storage system a, a glue spraying system C, a glue feeding system B for feeding glue in the glue storage system a to the glue spraying system C, and an integrated control cabinet E.
Referring to fig. 1-13, the glue storage system a includes a first rack and a glue storage tank 1 disposed on the first rack.
Referring to fig. 1 to 13, the glue spraying system C includes a second rack 47 and a glue spraying device disposed on the second rack 47, wherein the glue spraying device includes a support 46 disposed on the second rack 47, a glue spraying module disposed on the support 46, and a control module for controlling flow rates of glue sprayed by the glue spraying modules to be consistent, wherein the glue spraying modules are in multiple groups, and the glue spraying modules are uniformly disposed on the support 46 along an extending direction of the second rack 47; each set of glue modules includes a nozzle 40.
Referring to fig. 1-13, the glue feeding system B includes a glue conveying device for conveying the glue in the glue storage tank 1 to the glue spraying device, and a heat preservation device for ensuring constant temperature conveying of the glue.
Referring to fig. 1-13, the glue delivery device comprises a glue delivery conduit and a glue delivery mechanism for driving glue to move in the glue delivery conduit, wherein the glue delivery conduit comprises a glue manifold 34 and a glue delivery pipe 2, wherein the glue manifold 34 is disposed on the support 46 and extends along the length direction of the second frame 47; the liquid inlet of each nozzle 40 is communicated with the glue manifold 34; the glue conveying pipe 2 is used for communicating the glue manifold 34 with the storage tank 1, and transitional conveying of glue between the glue storage tank 1 and the glue manifold 34 is achieved.
Referring to fig. 1-13, the heat preservation device includes a first heating interlayer 4 disposed on a glue storage tank 1 for heating glue in the glue storage tank 1, a second heating interlayer 5 for heating glue in a glue delivery pipe, a hot water supply device, and a hot water circulation delivery device for driving hot water to circulate in the first heating interlayer 4 and the second heating interlayer 5, wherein the first heating interlayer 4 is wrapped on an outer wall of the glue storage tank 1, and the second heating interlayer 5 is wrapped on an outer wall of the glue delivery pipe; the hot water supply device, the first heating interlayer 4, the second heating interlayer 5 and the hot water circulating and conveying device form a closed loop.
Referring to fig. 1-13, the plywood glue spraying apparatus of the present invention further comprises a gas delivery device for supplying gas to each nozzle 40, the gas delivery device comprising a gas manifold 42 and a gas delivery mechanism 19 for driving the gas to move to the gas manifold 42; wherein the gas manifold 42 is disposed on the support 46 and extends along a length direction of the second frame 47; the inlet of each nozzle 40 communicates with the gas manifold 42.
Referring to fig. 1-13, the glue storage tank 1 includes an outer tank body disposed on the first frame and an inner tank body disposed inside the outer tank body, and a gap between the outer tank body and the inner tank body forms the first heating interlayer 4; the glue conveying pipeline comprises an inner pipeline and an outer pipeline, and a gap between the inner pipeline and the outer pipeline forms the second heating interlayer 5.
In addition to the above embodiments, the first heating interlayer 4 and the second heating interlayer 5, the glue storage tank 1 and the glue conveying pipeline may be a split structure, for example, an incubator is disposed outside the glue storage tank 1. In addition, in this embodiment, the glue delivery pipelines (e.g., glue recycling pipe 49 and glue manifold 34) for delivering glue may be designed to be an inner-outer double-layer or multi-layer pipeline structure, so that the glue can be delivered under a constant temperature condition, and the flowability, viscosity and other properties of the glue are greatly ensured.
Referring to fig. 1 to 13, the hot water circulation delivery device includes a hot water delivery pump 6 and a hot water delivery pipe 7, wherein the hot water delivery pump 6, the first heating interlayer 4, the second heating interlayer 5 and the hot water supply device are communicated with each other through the hot water delivery pipe 7, thereby forming the closed loop. Because a closed loop is formed among the hot water delivery pump 6, the first heating interlayer 4, the second heating interlayer 5 and the hot water supply device, the hot water delivery pump 6 circularly delivers the hot water in the hot water supply device on the closed loop, thereby ensuring that the temperature of the hot water on the closed loop is kept consistent and reaches a preset temperature range. The hot water supply device comprises a water supply device and a heating device 33 arranged at the lower end of the outer tank body and used for heating water, and the heating device 33 is a heater; the hot water entering the first heating interlayer 4 is heated by the heating device 33 to reach a predetermined temperature, so that the hot water in the first heating interlayer 4, the second heating interlayer 5 and the hot water conveying pipeline 7 can be recycled, and the hot water in the first heating interlayer 4, the second heating interlayer 5 and the hot water conveying pipeline 7 can reach a predetermined temperature range, so that the glue in the glue storage tank 1 and the glue conveying pipeline is at an optimum temperature, and the glue has good performance, such as flowability and adhesiveness; therefore, the glue spraying device is beneficial to the transportation of glue and the spraying of the glue on the plate blank, and is also beneficial to the compounding of the plywood; for this purpose, the lower end of the outer tank is provided with a water level sensor 8 and a temperature sensor 9 for monitoring the water level and temperature in the first heating interlayer 4 in real time.
Referring to fig. 1 to 13, the lower end of the glue storage tank 1 in this embodiment is provided with a hot water discharge port 10 for discharging hot water of the first heating interlayer 4 and a glue discharge port 11 for discharging glue in the glue storage tank 1, wherein the hot water discharge port 10 and the glue discharge port 11 are provided with communication valves for controlling the opening and closing of the hot water discharge port 10 and the glue discharge port 11, and when the plywood glue spraying device of the present invention is in operation, the hot water discharge port 10 is used for communicating with the hot water delivery pipe 7 or the hot water delivery pump 6; the glue discharging port 11 is used for being communicated with the glue conveying pipeline or the glue conveying pump 24; when the plywood glue spraying equipment stops working, the communicating valves in the hot water discharge port 10 and the glue discharge port 11 can be opened manually or electrically, so that hot water in the first heating interlayer 4 and glue in the inner tank body can be emptied. In addition, when the glue storage tank 1 is cleaned, the cleaning liquid in the first heating interlayer 4 and the inner tank body can be discharged by opening the communication valves in the hot water discharge port 10 and the glue discharge port 11. Therefore, the communication valve can adopt a three-way ball valve 26 or an electric three-way ball valve 35.
Referring to fig. 1-13, a stirring device 12 for stirring glue is arranged on the first frame, and the stirring device 12 includes a stirring rod and a stirring motor for driving the stirring rod to stir, wherein the stirring rod extends downwards into the inner tank. Through setting up agitating unit 12, can realize stirring the glue in storing up gluey jar 1 for it is heated evenly, thereby keeps good mobility, thereby conveniently carries.
In addition, the upper end of the glue storage tank 1 of the embodiment is provided with a plurality of feed inlets communicated with the inner tank body, and the feed inlets are used for supplementing glue to the glue storage tank 1; the upper end of the glue storage tank 1 is also provided with a drying tank 13 for drying air entering the first heating interlayer 4 or the inner tank body, the upper end of the glue storage tank 1 is provided with a drying tank installation position, the drying tank 13 is provided with a breather valve 14, and the drying tank 13 is connected with the breather valve 14; in addition, the upper end of the glue storage tank 1 is also provided with a cleaning port which is used for being communicated with a cleaning device or a cleaning pipeline, and the inner wall of the inner tank body or/and the inner wall of the outer tank body are cleaned by cleaning liquid in the cleaning device or the cleaning pipeline.
Referring to fig. 1-13, the plywood glue spraying apparatus of the present invention further comprises a recycling system D for recycling glue, wherein the recycling system D comprises a glue recycling tank 16, a glue recycling tank 48 disposed below the glue spraying device for recycling glue, and a glue recycling pipe 49 communicated with the glue recycling tank 48, wherein the glue recycling tank 48 is mounted on the second frame 47 through a detachable connection structure, and the cross-sectional area of the bottom of the glue recycling tank 48 is gradually reduced downward to form a guide part for guiding glue to enter the glue recycling pipe 49 for filtering impurities in the recycled glue. Meanwhile, in order to facilitate cleaning of the sidewalls of the rack and the glue recycling groove 48, a tetrafluoro patch may be sprayed or attached on the sidewalls of the second rack 47 and the glue recycling groove 48.
Referring to fig. 1-13, the inlet end of the glue recycling pipe 49 is communicated with the bottom of the glue recycling groove 48, the outlet end is communicated with the inlet end of the glue recycling tank 16 through a glue conveying pipeline, and the outlet end of the glue recycling tank 16 is communicated with one of the feed inlets of the glue storage tank 1 through a glue conveying pipeline; a glue recycling control valve (such as a through ball valve) for opening or closing the outlet end of the glue recycling pipe 49 is arranged at the outlet end of the glue recycling pipe 49; a filter screen 50 is arranged between the bottom of the glue recycling groove 48 and the inlet end of the glue recycling pipe 49 and is used for filtering impurities in recycled glue. Through the structure, the redundant glue flows to the bottom of the glue recycling groove 48 and flows into the glue recycling tank 16 through the glue recycling pipe 49, so that the recycling of the glue is realized.
Referring to fig. 1-13, a diaphragm pump 17 for feeding the glue in the glue recycling tank 16 into the glue storage tank 1 is disposed on the glue recycling tank 16, wherein a filter 18 is disposed between a liquid inlet end of the diaphragm pump 17 and an outlet end of the glue recycling tank 16; the gas inlet end of the diaphragm pump 17 is communicated with a gas conveying mechanism 19 through a gas conveying pipeline, wherein a pressure reducing valve 20 and an electromagnetic valve 21 are arranged between the gas inlet end of the diaphragm pump 17 and the gas conveying mechanism 19, the pressure reducing valve 20 is used for controlling the flow rate of gas, and the electromagnetic valve 21 is used for controlling the opening and closing of the gas conveying pipeline; in addition, a liquid level alarm for monitoring and alarming the liquid level of the glue in the box body is arranged in the glue recycling box 16.
The gas delivery device and the gas delivery mechanism 19 in this embodiment can share a set of gas supply equipment, and can be driven separately through gas delivery pipelines and various types of control valves, thereby saving the cost.
Referring to fig. 1-13, the control module in the glue spraying system C of the present invention comprises a liquid pressure reducing valve 45 disposed between the glue manifold 34 and each nozzle 40 and an air pressure reducing valve 41 disposed between the air manifold 42 and each nozzle 40, wherein the liquid pressure reducing valve 45 is used for controlling the flow rate of the glue into each nozzle 40 to be consistent; the gas pressure reducing valve 41 is used to control the flow rate of the gas into each nozzle 40 to be uniform. With the above arrangement, the flow rates of the glue and the air flow entering the nozzles 40 are kept uniform, so that the flow rate of the glue ejected from each nozzle 40 is kept uniform.
In addition, the glue spraying system C of the present invention is provided with an electromagnetic valve 21 between the liquid pressure reducing valve 45 and the nozzle 40, for controlling the connection and disconnection of the pipeline between the liquid pressure reducing valve 45 and the nozzle 40; an electromagnetic valve 21 is provided between the gas pressure reducing valve 41 and the nozzle 40 to control communication and disconnection of a line between the gas pressure reducing valve 41 and the nozzle 40.
Referring to fig. 1 to 13, the glue spraying system C of the present invention further includes a vertical adjusting device 51 for adjusting the height of the glue spraying device, wherein the vertical adjusting device 51 includes a worm gear lead screw lifter disposed on the second frame 47 and a vertical driving mechanism for driving the worm gear lead screw lifter to work, and the worm gear lead screw lifter includes a lead screw transmission mechanism and a worm gear mechanism for driving a lead screw nut in the lead screw transmission mechanism to rotate; the vertical driving mechanism adopts a motor driving or manual driving mode. The worm in the worm gear mechanism is driven to rotate in a motor-driven or manual-driven mode, so that the worm gear and the screw rod nut in the screw rod transmission mechanism are driven to rotate, the screw rod in the screw rod transmission mechanism is driven, and the support 46 connected with the screw rod vertically moves, so that the height of the glue spraying device arranged on the support 46 is adjusted.
In this embodiment, the driving mode of the vertical driving mechanism adopts a manual driving mode, that is, the adjusting wheel drives the worm in the worm and gear mechanism to rotate, so as to drive the glue spraying device on the bracket 46 to move vertically. In order to facilitate adjustment, a spraying height gauge is further arranged on the second frame 47, and is used for an operator to adjust the height of the glue spraying device for reference.
The glue delivery mechanism of the present embodiment is a glue delivery pump 24, such as a gear pump; the inlet end of the glue delivery pump 24 is communicated with the glue storage tank 1 through a glue delivery pipe 2, the outlet end of the glue delivery pump is connected with the inlet end of the glue delivery pipe 2, and the outlet end of the glue delivery pipe 2 is connected with the inlet end of the glue manifold 34.
Referring to fig. 1-13, the plywood glue spraying apparatus of the present invention further comprises a cleaning device, wherein the cleaning device comprises a first cleaning mechanism for cleaning the nozzles 40 and a second cleaning mechanism for cleaning the glue delivery pump 24, the glue delivery pipe 2, the glue manifold 34 and the nozzles 40, and the first cleaning mechanism cleans each nozzle 40 when the glue spraying device is in standby; when the glue-spraying device is stopped, the second cleaning mechanism cleans the glue-delivery pump 24, the glue-delivery pipe 2, the glue manifold 34 and each nozzle 40, wherein,
the first cleaning mechanism comprises a cleaning solution manifold 44 and a cleaning solution delivery mechanism for driving the cleaning solution to the cleaning solution manifold 44, wherein the cleaning solution manifold 44 is mounted on the support 46 and extends along the length direction of the second frame 47; the inlet end of the cleaning liquid manifold 44 is provided with a cleaning liquid control valve (e.g., a through ball valve) for controlling opening or closing thereof; the cleaning liquid control valve is a straight-through ball valve 39; the cleaning solution manifold 44 is in communication with the liquid inlet of each nozzle 40. With the above arrangement, when the glue spraying system C of the present invention is temporarily stopped (in standby), the cleaning solution control valve is opened, and the nozzle 40 can be cleaned when the glue spraying system C of the present invention is temporarily stopped. In addition, the inlet end of the cleaning solution manifold 44 is provided with a filter 18 for filtering the cleaning solution.
Referring to fig. 1-13, the glue spraying module further includes a manual three-way ball valve 26 disposed between the nozzle 40 and the glue manifold 34 and the cleaning solution manifold 44, wherein a lower end of the manual three-way ball valve 26 is communicated with an inlet of the nozzle 40, one of the other two ends of the manual three-way ball valve 26 is connected to the glue manifold 34, and the other end is communicated with the cleaning solution manifold 44. Through the arrangement, when the nozzle 40 needs to be cleaned, the liquid inlet of the nozzle 40 is communicated with the cleaning liquid manifold 44 through the manual three-way ball valve 26, so that the cleaning liquid enters the nozzle 40, and the cleaning of the nozzle 40 is realized.
Referring to fig. 1 to 13, the cleaning solution delivery mechanism includes a cleaning solution delivery pump and a cleaning solution delivery pipe 52, wherein an inlet end of the cleaning solution delivery pump is communicated with the cleaning solution storage tank 3, an outlet end of the cleaning solution delivery pump is connected with an inlet end of the cleaning solution delivery pipe 52, and an outlet end of the cleaning solution delivery pipe 52 is connected with an inlet end of the cleaning solution manifold 44. And conveying the cleaning liquid in the cleaning liquid storage tank 3 to the position to be cleaned by a cleaning liquid conveying pump to realize cleaning. In addition, the cleaning liquid delivery pump in this embodiment is driven by air pressure, that is, the air inlet of the cleaning liquid storage tank 3 is communicated with the air delivery mechanism 19, and high-pressure air is delivered into the cleaning liquid storage tank 3 through the air delivery mechanism 19, so that the cleaning liquid in the cleaning liquid storage tank 3 flows out from the discharge port of the cleaning liquid storage tank 3, and enters the cleaning liquid manifold 44 through the cleaning liquid delivery pipe 52, thereby cleaning the nozzle 40. And a gas pressure reducing valve 41 and a pressure regulating valve 43 are arranged between the cleaning liquid storage tank 3 and the gas conveying mechanism 19, and the pressure regulating valve 43 is provided with a water-gas separator and a stop valve. Since the cleaning liquid delivery pump is the gas delivery mechanism 19 in the gas delivery device, cost saving is achieved.
Referring to fig. 1-13, the second cleaning mechanism includes an electric three-way valve 35 disposed between the glue storage tank 1 and the glue delivery pump 24, wherein one end of the electric three-way valve 35 is communicated with an outlet of the glue storage tank 1, one of the other two ends is communicated with an outlet of the barreled cleaning liquid, and the other end is communicated with an inlet of the glue delivery pump 24. Through the arrangement, when the glue spraying system C is stopped for a long time, the electric three-way ball valve 35 is controlled to enable the barreled cleaning liquid to be communicated with the glue delivery pump 24, the cleaning liquid is delivered to the glue delivery pipe 2, the glue manifold 34 and each nozzle 40 through the glue delivery pump 24, the glue delivery pipe 2, the glue manifold 34 and each nozzle 40 are cleaned, and therefore the glue is prevented from solidifying to block pipelines.
In addition to the above manner, after the plywood glue spraying device is shut down, the cleaning liquid conveying pipeline 52 can be manually communicated with corresponding devices or pipelines in the glue storage system a, the glue conveying system B, the glue spraying system C and the recovery system D to clean the plywood.
Referring to fig. 1-13, the glue spraying system C further comprises a detecting device, which detects whether the board blank of the plywood reaches the lower part of the glue spraying device; the detection devices are single groups or multiple groups, and each group of detection devices is a contact type sensor (such as a pressure sensor) or a non-contact type sensor (a photoelectric sensor). Through above-mentioned detection device, judge whether the slab arrives the rubber coating station. In addition, the second frame 47 is provided with a plurality of air suction openings 53.
Referring to fig. 1-13, a diaphragm type pulsation damper 36 and a mass flow meter 25 are arranged at the glue delivery pipe 2 between the glue delivery pump 24 and the glue manifold 34 of the present embodiment; in addition to the above description, the glue water pipe 2 in the glue feeding system B of the present invention is further provided with a pressure sensor 38 for detecting pressure, a hose 31 and a basket filter 22. A check valve 29 and a three-way ball valve are connected between the mass flow meter 25 and the glue delivery pump 24, wherein one end of the three-way ball valve is connected with the mass flow meter 25, one end of the other two ends of the three-way ball valve is connected with the check valve 29, and the other end of the three-way ball valve is used as a drain outlet; the other end of the check valve 29 is connected with the outlet end of the glue delivery pump 24; when the three-way ball valve is adjusted to be fully open, the glue in the main pipeline (namely the glue conveying pipe 2) can be discharged.
In addition, the glue feeding system B of the present invention is further provided with a return pipe 37 for feeding the glue in the glue conveying pipe back to the glue storage tank 1, a starting point of the return pipe 37 is located between the check valve 29 and the three-way ball valve, an ending point is located at a feed inlet of the glue storage tank 1, and an electric straight-through ball valve 28, a back pressure valve 27 (adjusting the pressure in the pipe) and the three-way ball valve 26 (draining the glue in the return pipe 37 when the pipe is in full-through) are sequentially arranged from the starting point to the ending point.
Referring to fig. 1-13, the working principle of the plywood glue spraying device of the invention is as follows:
the glue spraying equipment for the plywood is arranged between the conveying devices for the plate blanks of the plywood, when the plate blanks of the plywood move to the glue spraying station, namely are positioned below the glue spraying devices, the control system controls the glue spraying equipment for the plywood to work, so that glue is sprayed on the plate blanks, the glue spraying equipment specifically comprises two working processes of glue feeding and glue spraying, wherein,
the glue feeding process comprises the following steps:
during operation, add the glue that has preheated and store up in gluing jar 1, glue conveying mechanism will store up in gluing jar 1 glue delivery duct, and the glue that enters into in the glue delivery duct enters into along this glue delivery duct and spouts the mucilage binding to put, spout the mucilage binding and spray glue on the slab of plywood to accomplish and send gluey work. Meanwhile, the hot water supply device adds hot water into the first heating interlayer 4 and the second heating interlayer 5, and meanwhile, the hot water circulation conveying device drives the hot water to circularly flow in the first heating interlayer 4 and the second heating interlayer 5. Because the first heating interlayer 4 is wrapped on the outer wall of the glue storage tank 1, the second heating interlayer 5 is wrapped on the outer wall of the glue conveying pipeline, so that the hot water in the first heating interlayer 4 can heat the glue in the glue storage tank 1 to keep the glue in a preset temperature range (the preset temperature range refers to the temperature range with the best glue flowability and viscosity), the second heating interlayer 5 heats the glue in the glue delivery pipe, so that it is kept in a predetermined temperature range, or the temperature of the glue in the glue storage tank 1 is kept consistent with the temperature of the glue in the glue conveying pipeline, therefore, the glue is guaranteed to be conveyed under the constant temperature condition, the glue is guaranteed to have good fluidity and viscosity, the glue can be prevented from being solidified, the spraying effect is guaranteed, and the plate blank sprayed with the glue can be bonded more tightly.
The glue spraying process comprises the following steps:
when the glue delivery mechanism delivers glue through the glue delivery conduit into the glue manifold 34, the air delivery mechanism 19 delivers air into the air manifold 42, the air entering the air manifold 42 moves into the nozzles 40 of each glue module, and the glue entering the glue manifold 34 moves into each nozzle 40, where the glue and air are thoroughly mixed and then ejected through the nozzles of the nozzles 40 to uniformly spray the glue onto the veneer blank.
In the glue spraying process, as the glue spraying modules are arranged in multiple groups and the glue spraying modules are uniformly arranged along the length direction of the rack, the nozzles 40 are arranged above all the positions of the plate blank, and the spraying range of the nozzles 40 covers all the positions on the plate blank; when spraying glue, all the nozzles 40 spray glue to the upper surface of the slab at the same time, thereby realizing the spraying of glue at each position of the slab. Compared with a roller type coating mode, the glue spraying system C is higher in spraying speed and efficiency. In addition, as the glue spraying modules spray glue onto the plate blank at the same time, the curing degree of the glue at each position of the plate blank is the same, thereby ensuring the bonding effect of the glue. In addition, because the glue spraying system C of the invention sprays the glue after mixing the gas and the glue in the nozzle 40, the volume of the sprayed glue particles is smaller, and the spraying is more uniform.
After glue spraying is finished, the conveying device conveys the plate blank sprayed with the glue to the next processing station, and then conveys the plate blank to be sprayed to the spraying station.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. A glue spraying device for plywood comprises a glue storage system, a glue spraying system and a glue conveying system for conveying glue in the glue storage system to the glue spraying system, and is characterized in that,
the glue storage system comprises a first machine frame and a glue storage tank arranged on the first machine frame;
the glue spraying system comprises a second rack and a glue spraying device arranged on the second rack, wherein the glue spraying device comprises a support arranged on the second rack, glue spraying modules arranged on the support and a control module used for controlling the flow rate of glue sprayed by the glue spraying modules to be consistent, the glue spraying modules are multiple groups, and the glue spraying modules are uniformly arranged on the support along the extending direction of the second rack; each group of glue spraying modules comprises a nozzle;
the glue conveying system comprises a glue conveying device used for conveying glue in the glue storage tank to the glue spraying device and a heat preservation device used for ensuring the constant-temperature conveying of the glue,
the glue conveying device comprises a glue conveying pipeline and a glue conveying mechanism for driving glue to move in the glue conveying pipeline, wherein the glue conveying pipeline comprises a glue manifold and a glue conveying pipe, the glue manifold is arranged on the bracket and extends along the length direction of the second rack; the liquid inlet of each nozzle is communicated with the glue manifold; the glue conveying pipe is used for communicating the glue manifold with the storage tank to realize transitional conveying of glue between the glue storage tank and the glue manifold;
the heat preservation device comprises a first heating interlayer arranged on the glue storage tank and used for heating glue in the glue storage tank, a second heating interlayer used for heating glue in the glue conveying pipeline, a hot water supply device and a hot water circulating conveying device used for driving hot water to circularly flow in the first heating interlayer and the second heating interlayer, wherein the first heating interlayer is wrapped on the outer wall of the glue storage tank, and the second heating interlayer is wrapped on the outer wall of the glue conveying pipeline; the hot water supply device, the first heating interlayer, the second heating interlayer and the hot water circulating and conveying device form a closed loop;
the gas conveying device comprises a gas manifold and a gas conveying mechanism for driving gas to move to the gas manifold; wherein the gas manifold is disposed on the support and extends along a length of the second rack; the gas inlet of each nozzle is in communication with the gas manifold.
2. Plywood glue spraying apparatus according to claim 1 wherein the glue storage tank comprises an outer tank disposed on the first frame and an inner tank disposed inside the outer tank, wherein a gap between the outer tank and the inner tank constitutes the first heating interlayer; the glue conveying pipeline comprises an inner pipeline and an outer pipeline, and a gap between the inner pipeline and the outer pipeline forms the second heating interlayer.
3. Plywood glue spraying equipment according to claim 2, characterized in that the hot water circulation delivery device comprises a hot water delivery pump and a hot water delivery pipe, wherein the hot water delivery pump, the first heating interlayer, the second heating interlayer and the hot water supply device are communicated with each other through the hot water delivery pipe.
4. Plywood glue spraying equipment according to claim 1, characterized in that a stirring device for stirring glue is arranged on the first frame, the stirring device comprising a stirring rod and a stirring motor for driving the stirring rod to stir, wherein the stirring rod extends downwards into the inner tank.
5. Plywood glue spraying apparatus according to claim 1 wherein the control module includes a liquid pressure relief valve provided between the glue manifold and each nozzle and a gas pressure relief valve provided between the gas manifold and each nozzle, wherein the liquid pressure relief valves are adapted to control the flow rate of glue into each nozzle to be consistent; the gas pressure reducing valve is used for controlling the flow rate of gas entering each nozzle to be consistent.
6. The plywood glue spraying device according to claim 1, wherein the glue spraying system further comprises a vertical adjusting device for adjusting the height of the glue spraying device, wherein the vertical adjusting device comprises a worm gear lead screw lifter arranged on the frame and a vertical driving mechanism for driving the worm gear lead screw lifter to work, and the worm gear lead screw lifter comprises a lead screw transmission mechanism and a worm and gear mechanism for driving a lead screw nut in the lead screw transmission mechanism to rotate; the vertical driving mechanism adopts a motor driving or manual driving mode.
7. The plywood glue spraying apparatus of claim 5, further comprising a recycling system for recycling glue, wherein the recycling system comprises a glue recycling tank, a glue recycling tank for recycling glue disposed below the glue spraying device, and a glue recycling pipe communicated with the glue recycling tank, wherein the glue recycling tank is mounted on the second frame by a detachable connection structure, and the cross-sectional area of the bottom of the glue recycling tank is gradually reduced downward to form a guide part for guiding glue into the glue recycling pipe; the inlet end of the glue recovery pipe is communicated with the bottom of the glue recovery tank, the outlet end of the glue recovery pipe is communicated with the inlet end of the glue recovery tank, and the outlet end of the glue recovery tank is communicated with the feed inlet of the glue storage tank; the outlet end of the glue recovery pipe is provided with a glue recovery control valve for opening or closing the outlet end of the glue recovery pipe; the bottom of the glue recycling groove is provided with a filter screen between the inlet end of the glue recycling pipe and the inlet end of the glue recycling pipe, and the filter screen is used for filtering impurities in recycled glue.
8. Plywood glue spraying equipment according to claim 7, characterised in that a membrane pump is arranged on the glue recovery tank for feeding glue from the glue recovery tank into a glue storage tank, wherein a filter is arranged between the liquid inlet end of the membrane pump and the outlet end of the glue recovery tank; the gas inlet end and the gas supply device of the diaphragm pump are communicated through a gas conveying pipeline, wherein a pressure reducing valve and an electromagnetic valve are arranged between the gas inlet end and the gas supply device of the diaphragm pump, the pressure reducing valve is used for controlling the flow rate of gas, and the electromagnetic valve is used for controlling the opening and closing of the gas conveying pipeline.
9. Plywood glue spraying apparatus according to claim 5, wherein the glue spraying system further comprises a cleaning device, wherein the cleaning device is adapted to clean a first cleaning mechanism for cleaning the nozzles and a second cleaning mechanism for cleaning the glue delivery mechanism and the nozzles, the first cleaning mechanism cleaning each nozzle when the glue spraying device is on standby; and when the glue spraying device stops, the second cleaning mechanism cleans the glue conveying mechanism and each nozzle.
10. Plywood glue spraying apparatus according to claim 9 wherein the first cleaning means comprises a cleaning liquid manifold mounted on the support and extending along the length of the second frame, and a cleaning liquid delivery means for driving cleaning liquid to move to the cleaning liquid manifold; the inlet end of the cleaning liquid manifold is provided with a cleaning liquid control valve for controlling the opening or closing of the cleaning liquid manifold; the cleaning solution manifold is communicated with the liquid inlet of each nozzle; the glue spraying module further comprises a manual three-way ball valve arranged between the nozzle and the glue manifold and the cleaning solution manifold, wherein the lower end of the manual three-way ball valve is communicated with a liquid inlet of the nozzle, one of the other two ends of the manual three-way ball valve is communicated with the glue manifold, and the other end of the manual three-way ball valve is communicated with the cleaning solution manifold;
the second cleaning mechanism comprises a three-way reversing valve arranged between the glue storage tank and the glue conveying mechanism, wherein one end of the three-way reversing valve is communicated with the outlet end of the glue storage tank, one end of the other two ends of the three-way reversing valve is communicated with the barreled cleaning liquid, and the other end of the three-way reversing valve is communicated with the inlet end of the glue conveying mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516640.3A CN111617899A (en) | 2020-06-08 | 2020-06-08 | Plywood spouts gluey equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516640.3A CN111617899A (en) | 2020-06-08 | 2020-06-08 | Plywood spouts gluey equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111617899A true CN111617899A (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010516640.3A Pending CN111617899A (en) | 2020-06-08 | 2020-06-08 | Plywood spouts gluey equipment |
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| CN (1) | CN111617899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871569A (en) * | 2021-01-13 | 2021-06-01 | 滁州市云米工业设计有限公司 | Gluing device for manufacturing industrial design model |
-
2020
- 2020-06-08 CN CN202010516640.3A patent/CN111617899A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871569A (en) * | 2021-01-13 | 2021-06-01 | 滁州市云米工业设计有限公司 | Gluing device for manufacturing industrial design model |
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