CN111085409A

CN111085409A - Hot melt adhesive powder spraying machine

Info

Publication number: CN111085409A
Application number: CN201911414141.7A
Authority: CN
Inventors: 施长城
Original assignee: Jinjiang Shenhu Jiansheng Printing Co ltd
Current assignee: Jinjiang Shenhu Jiansheng Printing Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-05-01

Abstract

The invention relates to a hot melt adhesive powder spraying machine, which comprises a mesh belt, an upper powder suction device, a lower paper suction device, a powder collecting hopper, a powder spraying device, a mesh belt powder removing device and a secondary recovery tower, wherein the powder spraying device is positioned on the upper side of a mesh belt bearing section above the powder collecting hopper and is provided with a main powder spraying port, a first powder suction port of the upper powder suction device is positioned on the upper side of the mesh belt bearing section, a second powder suction port of the upper powder suction device is connected with the bottom of the powder collecting hopper, the first powder suction port and the second powder suction port are connected through an upper powder suction pipe A, the upper powder suction device is connected with a first secondary recovery input port of the secondary recovery tower, the lower paper suction device is connected with a second secondary recovery input port of the secondary recovery tower, the upper powder suction device and the lower paper suction device are both connected with the powder spraying device, the mesh belt powder removing device is connected with a third secondary recovery input port of the secondary recovery tower, the secondary recovery tower is provided, The recovery process does not require manual intervention.

Description

Hot melt adhesive powder spraying machine

Technical Field

The invention relates to the technical field of powder sprinklers, in particular to a hot melt adhesive powder sprinkler.

Background

At present, characters and patterns on the clothes are usually attached to the clothes in a heat transfer printing mode, so that the characters and the patterns need to be made into heat transfer printing paper for a clothing factory to use. In the process of manufacturing the thermal transfer paper, the hot melt adhesive powder is scattered on the transfer paper by a powder scattering machine. However, the traditional powder sprinkling machine has no good method for completely recycling the powder, if the powder is not completely recycled, the residual powder can cause redundant spots of star points around characters and patterns, the quality is greatly influenced, manual intervention is needed in the recycling process, and the labor intensity of workers is high.

Disclosure of Invention

In order to overcome the technical defects in the prior art, the invention provides the hot melt adhesive powder spraying machine, which has thorough powder recovery and does not need manual intervention in the recovery process.

The technical solution adopted by the invention is as follows: the hot melt adhesive powder spraying machine comprises a mesh belt, an upper powder absorbing device, a lower paper absorbing device, a collecting hopper, a powder spraying device, a mesh belt powder removing device and a secondary recovery tower, wherein the powder spraying device is positioned on the upper side of a mesh belt bearing section above the collecting hopper and is provided with a main powder spraying port, a first powder absorbing port of the upper powder absorbing device is positioned on the upper side of the mesh belt bearing section, a second powder absorbing port of the upper powder absorbing device is connected with the bottom of the collecting hopper, the first powder absorbing port and the second powder absorbing port are connected through an upper powder absorbing pipe A, an air outlet of the upper powder absorbing device is connected with a secondary recovery first input port of the secondary recovery tower, a paper absorbing port of the lower powder absorbing device is positioned on the lower side of the mesh belt bearing section, an outlet of the lower powder absorbing device is connected with a secondary recovery second input port of the secondary recovery tower, the mesh belt powder removing device is connected with a secondary recovery third input port of the secondary recovery tower, and a powder removing port of the mesh belt, the secondary recovery tower is provided with a third powder spraying opening which is connected with a powder suction pipe A.

As a further improvement of the invention, the upper powder suction device comprises an upper powder suction nozzle, an upper suction recovery tower and an upper suction fan, wherein the upper powder suction nozzle is a first powder suction port and is connected with the upper suction fan, the upper suction recovery tower is provided with a first powder spraying port corresponding to the powder spraying device, and an air outlet of the upper suction recovery tower is connected with a first secondary recovery inlet of a secondary recovery tower.

As a further improvement of the invention, the bottom of the upper absorption and recovery tower is provided with a lower powder switch corresponding to the powder spraying device, the lower powder switch comprises a switch cylinder and a switch path selection device, the switch cylinder is provided with a switch powder inlet and two switch powder outlets, the switch powder inlet and the switch powder outlets are connected with the upper absorption and recovery tower, the switch powder inlet and the switch powder outlets are both communicated with the switch path selection device, the switch path selection device slides along the axial direction of the switch cylinder, the switch powder inlets are not communicated with the switch powder outlets in the whole sliding process of the switch path selection device along the switch cylinder, and the switch powder outlets form a first powder spraying port.

As a further improvement of the invention, the upper powder suction nozzle comprises two powder suction nozzle side plates, a powder suction opening-closing device, a first powder suction plate and a second powder suction plate, the first powder suction plate and the second powder suction plate are oppositely and fixedly arranged between the two powder suction nozzle side plates, a suction nozzle channel is formed between the first powder suction plate and the second powder suction plate, the first powder suction plate is provided with a suction nozzle control cavity at the suction nozzle channel, the side plates of the powder suction nozzle are provided with suction nozzle control channels communicated with the suction nozzle control cavity, the powder suction opening and closing device comprises an opening and closing movable plate and an opening and closing control mechanism, the opening and closing movable plate is arranged in the suction nozzle control cavity, two ends of the opening and closing movable plate are in sliding friction with corresponding powder suction nozzle side plates, the opening and closing control mechanism penetrates through the suction nozzle control channel, extends into the suction nozzle control cavity and is in transmission connection with the opening and closing movable plate, the opening and closing movable plate slides in the suction nozzle control cavity along the width direction of the suction nozzle channel under the transmission of the opening and closing control mechanism.

As a further improvement of the invention, the lower paper absorbing device comprises a lower paper absorbing air box, a lower paper absorbing fan and a lower absorbing and recovering tower, the lower paper absorbing air box is connected with the lower paper absorbing fan, the lower absorbing and recovering tower is provided with a second powder spraying opening corresponding to the powder spraying device, and the lower absorbing and recovering tower is connected with a second secondary recovering input opening of the secondary recovering tower.

As a further improvement of the present invention, the lower paper suction air box comprises a lower paper suction air box body, a closing plate operation rod and a plurality of lower paper suction closing devices installed in the lower paper suction air box body, the lower paper suction air box body comprises a paper suction air inlet plate, each lower paper suction closing device comprises a closing plate assembly, a pair of lower paper suction closing guide rails and a lower paper suction pushing assembly, the pair of lower paper suction closing guide rails are oppositely arranged on the inner surface of the lower paper suction air box, each lower paper suction pushing assembly is fixedly installed on the inner surface of the lower paper suction air box, the closing plate operation rod extends into the lower paper suction air box body and is detachably and drivingly connected with each lower paper suction pushing assembly, the closing plate assembly is drivingly connected with the lower paper suction pushing assembly, and the closing plate assembly closes the paper suction air inlet plate when being in the upper limit working position.

As a further improvement of the invention, the mesh belt powder removing device comprises a third fan, a mesh belt powder removing box and a powder sweeping and brushing device, the mesh belt powder removing box is provided with a powder removing port and is connected with the third fan, the powder removing port is positioned at the lower side of a mesh belt recovery section, the third fan is connected with a secondary recovery third input port of a secondary recovery tower, the powder sweeping and brushing device is arranged at the upper side of the mesh belt recovery section and rubs with the mesh belt recovery section, the powder sweeping and brushing device is positioned at the upper side of a collecting hopper, and the powder sweeping and brushing device comprises a plurality of powder sweeping and brushing assemblies capable of turning.

As a further improvement of the invention, the secondary recovery tower comprises a recovery tower discharge pipe, a conical cylinder shell, an outer cylinder shell, a sealing upper cover, a sliding inner cylinder, an inner cylinder lifting device and three secondary recovery air inlet pipes which are fixed in sequence from bottom to top, wherein the sealing upper cover is provided with an inner cylinder mounting hole, the sliding inner cylinder penetrates through the inner cylinder mounting hole and slides up and down along the sliding inner cylinder, the recovery tower discharge pipe forms a third powder spraying port, the three secondary recovery air inlet pipes are tangentially arranged on the outer cylinder shell, the three secondary recovery air inlet pipes respectively form a secondary recovery first input port and a secondary recovery second input port and a secondary recovery third input port, and the inner cylinder lifting device is arranged on the top surface of the sealing upper cover and is in transmission connection with the sliding inner cylinder.

As a further improvement of the invention, the powder spraying device comprises a light-operated inductive switch, a powder spraying hopper and a powder spraying roller set, wherein a main powder spraying opening is formed in the bottom of the powder spraying hopper, the light-operated inductive switch instructs the powder spraying roller set to rotate and spray powder through the main powder spraying opening when sensing paper, and the light-operated inductive switch instructs the powder spraying roller set to stop rotating and make the main powder spraying opening spray powder when sensing no paper.

As a further improvement of the invention, the powder spraying roller group comprises two opposite powder spraying rollers, a powder spraying channel is formed between the two powder spraying rollers, and the powder spraying channel is positioned at the lower side of the main powder spraying opening.

The invention has the beneficial effects that:

1: the powder spraying device is positioned on the upper side of the mesh belt bearing section above the collecting hopper and is provided with a main powder spraying port, the main powder spraying port is arranged above the collecting hopper, and powder is directly recovered to the collecting hopper by utilizing gravity.

2: the first powder suction port of the upper powder suction device is located on the upper side of the mesh belt bearing section, the second powder suction port is connected with the bottom of the collecting hopper, the first powder suction port and the second powder suction port are connected through an upper powder suction pipe A, the secondary recovery tower is provided with a third powder spraying port, the third powder spraying port is connected with an upper powder suction pipe A, the powder recovered by the secondary recovery tower returns to the upper powder suction device through the upper powder suction pipe A, the upper powder suction device comprises an upper powder suction recovery tower, automatic circulation of the powder is completed, manual intervention is not needed, and labor intensity is low.

3: the air outlet of the upper powder suction device is connected with a secondary recovery first input port of a secondary recovery tower, the paper suction port of the lower paper suction device is located at the lower side of a mesh belt bearing section, the discharge port is connected with a secondary recovery second input port of the secondary recovery tower, the upper powder suction device and the lower paper suction device are both connected with a powder spraying device, the mesh belt powder removing device is connected with a secondary recovery third input port of the secondary recovery tower, the powder removing port of the mesh belt powder removing device is located at the lower side of the mesh belt recovery section, and the powder is completely and thoroughly recovered through omnibearing powder removal at three places of the lower side and the mesh belt.

Drawings

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

FIG. 2 is a schematic cross-sectional view of an upper powder suction nozzle.

Fig. 3 is a schematic view of the retractable movable plate.

Fig. 4 is a schematic diagram illustrating the pushing state of the opening and closing movable plate.

FIG. 5 is a schematic view of a side plate structure of the powder suction nozzle.

FIG. 6 is a schematic structural view of a first powder absorbing plate.

Fig. 7 is a schematic structural view of the movable oblique block.

FIG. 8 is a schematic diagram of a width control plate structure.

Fig. 9 is a schematic view of the powder discharge switch in a retraction limit state.

Fig. 10 is a schematic diagram of the powder discharge switch in a middle position state.

Fig. 11 is a schematic view of the powder discharging switch in the ejection limit position state.

Fig. 12 is a schematic structural view of the powder discharging switch.

Fig. 13 is a schematic view of the state at a in fig. 12.

FIG. 14 is a schematic view of a lower suction bellows configuration.

Fig. 15 is a schematic structural diagram at B in fig. 14.

FIG. 16 is a schematic view of the mounting relationship of the closure panel assembly to the lower suction closure rail.

FIG. 17 is a schematic view of a closure plate assembly.

FIG. 18 is a schematic view of a closing plate lever.

FIG. 19 is a schematic view of the structure of the sweeper brush assembly.

Fig. 20 is an enlarged schematic view at C in fig. 19.

Fig. 21 is a schematic structural view of a sweeping brush assembly.

Figure 22 is a schematic cross-sectional view of a rail body.

FIG. 23 is a cross-sectional view of a key slot avoiding groove of a rail body.

Fig. 24 is a schematic cross-sectional view of the arc rail of the closure.

FIG. 25 is a schematic view of the mounting position of the powder sweeping sprocket.

FIG. 26 is a schematic view of a secondary recovery column.

FIG. 27 is a schematic partial cross-sectional view of a secondary recovery column.

Fig. 28 is a schematic view of a sliding inner cylinder structure.

FIG. 29 is a schematic top view of a secondary recovery tower.

Figure 30 is a schematic cross-sectional view of a finned drag reducing core.

Description of reference numerals:

1. a mesh belt; 11. a mesh belt supporting section; 12. a mesh belt recovery section;

2. an upper powder suction device; 21. an upper powder suction nozzle; 211. a powder suction nozzle side plate; 2111. a suction nozzle control channel; 212. a powder suction opening and closing device; 2121. opening and closing the movable plate; 21211. a movable oblique block; 21212. shaping a bulge; 21231. a width control panel; 212311, a control swash block; 21232. a width control gear; 21233. a width control lever; 213. a first powder absorbing plate; 2131. a suction nozzle control chamber; 214. a second powder suction plate; 215. a suction nozzle channel; 216. a vortex chamber; 22. a second powder suction port; 23. an upper powder suction pipe A; 24. an upper absorption recovery tower; 241. a powder discharging switch; 2411. opening and closing the cylinder; 24111. opening and closing the powder inlet; 24112. opening and closing the powder outlet; 24113. mounting a plate; 2412. switching the power part; 2413. a connecting rod; 24131. a shock pad; 2414. a switch sealing ring; 24141. a first material collecting cavity; 24142. a second material collecting cavity; 24143. a third collecting chamber; 2415. a powder discharge device; 24151. a powder discharge cover plate; 24152. fastening a wrench; 241521, eccentric hook; 241511, powder discharge hook; 25. an upper suction fan;

3. a lower paper suction device; 31. a lower suction bellows; 311. a lower paper suction wind box body; 3111. a paper suction air inlet plate; 31111. an air inlet hole of the lower suction paper; 3112. a lower paper suction upper sloping plate; 312. a closing plate lever; 3121. an operating lever gear section; 3122. a cylindrical section of the operating rod; 313. a lower suction paper closing device; 3131. a closure panel assembly; 31311. a lower suction paper closure panel; 313111, closing plate guide posts; 31312. a closing plate push rod; 3132. the lower paper is used for closing the guide rail; 31321. a closure plate support plate; 3133. a lower suction paper pushing assembly; 31331. pushing the gear mounting plate; 313311, a lever passing hole; 31332. the lower paper absorbing and pushing gear; 32. a lower paper suction fan; 33. a downdraft recovery column; 331. a second powder spraying opening;

4. a collection hopper;

5. a powder spraying device; 51. a main powder spraying port;

6. a mesh belt powder removing device; 61. a third fan; 62. a mesh belt powder removing box; 63. a brush sweeping device; 631. a sweeping brush assembly; 6311. brushing the limiting section; 6312. a brush guide section; 6313. a brush section; 6321. a first annular transition zone; 6322. a second annular transition zone; 6323. a guide groove; 6324. a guide rail limiting cavity; 633. a powder sweeping chain wheel; 6331. sweeping and brushing a power wrench; 634. sealing the arc rail; 6341. the arc rail is opened; 635. a guide rail main body; 6351. a sprocket escape slot; 636. an elastic fixing member;

7. a secondary recovery tower; 71. a second recovery first input port; 72. a secondary recovery second input port; 73. a secondary recovery third input port; 74. a third powder spraying opening; 75. sliding the inner cylinder; 751. a fin drag reduction core; 7511. a fin; 752. an inner cylinder lifting ring; 7521. lifting lugs of the inner cylinder; 75211. a threaded hole; 753. a lifting screw rod; 754. two guide sprockets; 755. a drive sprocket; 756. a chain; 76. a conical shell; 77. an outer cylindrical shell; 78. sealing the upper cover; 79. a secondary recovery air inlet pipe; 791. a circulating gap.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-30, the present embodiment provides a hot melt adhesive powder spraying machine, which comprises a mesh belt 1, an upper powder suction device 2, a lower paper suction device 3, a collecting hopper 4, a powder spraying device 5, a mesh belt powder removing device 6 and a secondary recovery tower 7.

In this embodiment, the powder sprinkling device 5 is located on the upper side of the mesh belt bearing section 11 above the collecting hopper 4 and is provided with a main powder sprinkling port 51, the main powder sprinkling port 51 is located above the collecting hopper 4, powder is directly recovered to the collecting hopper 4 by utilizing gravity, the first powder suction port of the upper powder suction device 2 is located on the upper side of the mesh belt bearing section 11, the second powder suction port 22 is connected with the bottom of the collecting hopper 4, and the first powder suction port and the second powder suction port 22 are connected through an upper powder suction pipe a 23; an air outlet of the upper powder absorbing device 2 is connected with a first secondary recovery inlet 71 of the secondary recovery tower 7, the upper powder absorbing device 2 is provided with an upper absorbing recovery tower 24, and the air outlet refers to an air outlet of the upper absorbing recovery tower 24; the paper suction port of the lower paper suction device 3 is positioned at the lower side of the mesh belt supporting section 11, and the discharge port is connected with a second secondary recovery input port 72 of the secondary recovery tower 7, the lower paper suction device 3 is provided with a lower suction recovery tower 33, and the discharge port refers to the discharge port of the lower suction recovery tower 33; the upper powder absorbing device 2 and the lower paper absorbing device 3 are both connected with the powder spraying device 5, in particular the bottoms of the lower absorption recovery tower 33 and the upper absorption recovery tower 24 are respectively connected with the powder spraying device 5; the mesh belt powder removing device 6 is connected with a secondary recovery third input port 73 of the secondary recovery tower 7, the powder removing port of the mesh belt powder removing device 6 is positioned at the lower side of the mesh belt recovery section 12, the mesh belt powder removing device 6 is provided with a mesh belt powder removing box 62, and the powder removing port refers to a suction port of the mesh belt powder removing box 62; the secondary recovery tower 7 is provided with a third powder spraying port 74, the third powder spraying port 74 is connected with a powder suction pipe A23, so that the powder-air mixture sucked by the upper powder suction device 2 and the lower paper suction device 3 is conveyed to the secondary recovery tower 7 for recovery again except for the first powder removal through the powder mixing body, and the powder recovered by the secondary recovery tower 7 enters the upper powder suction device 2 through the upper powder suction pipe A23 for automatic recovery again, so that the recovery process does not need manual intervention, and the recovery is thorough.

In this embodiment, the upper powder suction device 2 comprises an upper powder suction nozzle 21, an upper suction recovery tower 24 and an upper suction fan 25, the upper powder suction nozzle 21 is a first powder suction port and is connected with the upper suction fan 25, for sucking away the surplus powder on the thermal transfer paper from the powder spraying device 5 on the upper side of the mesh belt supporting section 11, the upper suction recovery tower 24 is connected with an upper suction fan 25, the upper suction recovery tower 24 is provided with a first powder spraying opening corresponding to the powder spraying device 5, the gas-powder mixture sucked by the upper suction nozzle 21 is firstly recovered by the upper suction recovery tower 24, most of the powder is separated, the powder falls back to the powder spraying device 5 from the first powder spraying port at the bottom of the upper absorption and recovery tower 24, the air outlet of the upper absorption and recovery tower 24 is connected with the first secondary recovery inlet 71 of the secondary recovery tower 7, the gas flowing out from the air outlet of the upper absorption and recovery tower 24 still contains a small amount of powder, these powders are fed from the first inlet 71 for secondary recovery to the secondary recovery tower 7 for recovery.

In this embodiment, a powder discharging switch 241 corresponding to the powder spreading device 5 is disposed at the bottom of the upper absorption and recovery tower 24, the powder discharging switch 241 includes a switch cylinder 2411 and a switch path selecting device, the switch cylinder 2411 is provided with a switch powder inlet 24111 and two switch powder outlets 24112, the switch powder inlet 24111 is rectangular, the two sides of the switch powder inlet 24111 parallel to the axial direction are respectively and fixedly provided with a mounting plate 24113, the axial direction of the switch cylinder 2411 is parallel to the mounting plate 24113, and the mounting plate 24113 is fixedly mounted at the bottom of the upper absorption and recovery tower 24.

The switch powder inlet 24111 and each switch powder outlet 24112 are both communicated with a switch passage selection device, the switch passage selection device slides along the axial direction of the switch cylinder 2411, each switch powder inlet 24111 is respectively not communicated with the switch powder outlet 24112 in the whole sliding process of the switch passage selection device along the switch cylinder 2411, so that the direct communication between each switch powder inlet 24111 and the switch powder outlet 24112 is isolated, the situation that the separated powder cannot fall down due to the fact that air is sucked into the powder switch 241 from the switch powder outlet 24112 under the action of high-speed airflow is avoided, the continuous operation of a recovery tower is further ensured, the continuous production is ensured, the switch cylinder 2411 is provided with a plurality of strip-shaped holes which are arranged in parallel, the length direction of each strip-shaped hole is parallel to the axial line of the switch cylinder 2411, each strip-shaped hole forms the switch powder outlet 24112, each switch powder outlet 24112 forms a first powder spraying port, and the length direction of each strip-shaped hole is parallel to the axial line, so that the switch passage selection device cannot frequently rub against the switch passage selection device in the axial direction of The service life of the switch path selection device is prolonged.

The switch passage selection device comprises a switch power piece 2412, a connecting rod 2413 and four switch sealing rings 2414 which are fixedly arranged on the connecting rod 2413 in parallel, shock absorbing pads 24131 are arranged at two ends of the connecting rod 2413, the shock absorbing pads 24131 are used for buffering and absorbing shock when the switch power piece 2412 acts, adjacent sealing rings and a cylinder body sequentially surround a first collecting cavity 24141, a second collecting cavity 24142 and a third collecting cavity 24143 along the ejection direction of the switch power piece 2412, the switch power piece 2412 has three working positions of a retraction limit position, a middle position and an ejection limit position, the switch power piece 2412 is preferably an air cylinder, the first collecting cavity 24141 is communicated with a switch powder outlet 24112 and the third collecting cavity 24143 is communicated with a switch powder inlet 24111 when the switch power piece 2412 is in the retraction limit position, powder in the first collecting cavity 24141 is sprayed out of the switch powder outlet 24112, and the third collecting cavity 24143 is sprayed out of the switch powder inlet 24111; when the switch power piece 2412 is at the top limit position, the first aggregate cavity 24141 is communicated with the switch powder inlet 24111, the third aggregate cavity 24143 is communicated with the other switch powder outlet 24112, and at the moment, powder in the third aggregate cavity 24143 is sprayed out of the switch powder outlet 24112, and the first aggregate cavity 24141 aggregates at the switch powder inlet 24111; when the switch power piece 2412 is in the middle position, the second material collecting cavity 24142 is communicated with the switch powder inlet 24111, the condition only occurs for a short time when the switch power piece 2412 is switched between the ejection limit and the retraction limit, and the second material collecting cavity 24142 is filled with powder in the state.

The powder discharging switch 241 further comprises a powder discharging device 2415, the switch cylinder 2411 is provided with a powder discharging hole, the powder discharging hole is formed in the lower side of the switch powder inlet 24111 and used for discharging powder in the second material collecting cavity 24142 when the switch access selecting device is in the middle position to prevent blockage, the powder discharging device 2415 comprises a powder discharging cover plate 24151 and a fastening wrench 24152, the fastening wrench 24152 is rotatably installed on the switch cylinder 2411 and provided with an eccentric hook 241521, the powder discharging cover plate 24151 is provided with a powder discharging hook 241511, the eccentric hook 241521 is detachably installed with the powder discharging hook 241511, the powder discharging cover plate 51 detachably covers the powder discharging hole, the eccentric hook 241521 continuously rotates after hooking the powder discharging hook 241511, and the eccentric hook 241521 gradually draws close to the powder discharging hook 241511 to tightly press the powder discharging cover plate 24151 at the powder discharging hole.

In this embodiment, the upper powder suction nozzle 21 includes two powder suction nozzle side plates 211, a powder suction opening and closing device 212, a first powder suction plate 213 and a second powder suction plate 214, the first powder suction plate 213 and the second powder suction plate 214 are oppositely and fixedly mounted between the two powder suction nozzle side plates 211, a nozzle channel 215 is formed between the first powder suction plate 213 and the second powder suction plate 214, the first powder suction plate 213 is provided with a nozzle control cavity 2131 at the nozzle channel 215, the powder suction nozzle side plates 211 are both provided with nozzle control channels 2111 communicated with the nozzle control cavity 2131, the powder suction opening and closing device 212 includes an opening and closing movable plate 2121 and an opening and closing control mechanism, the opening and closing control mechanism is used for controlling the opening and closing movable plate 2121 to slide along the nozzle control cavity 2131, the opening and closing movable plate 2121 is mounted in the nozzle control cavity 2131 and two ends of the opening and closing movable plate 2121 are in sliding friction with the corresponding powder suction nozzle side plates 211, the opening and closing control mechanism passes through the nozzle control channel 2111 and extends into the nozzle control cavity 2131 and is in transmission connection with, the opening and closing movable plate 2121 slides in the nozzle control cavity 2131 along the width direction of the nozzle channel 215 under the transmission of the opening and closing control mechanism, and the nozzle control channel 2111 is used for limiting the opening and closing control mechanism to prevent the opening and closing control mechanism from backing up in the sliding process of the opening and closing movable plate 2121.

Wherein, the opening and closing movable plate 2121 comprises a plurality of movable oblique blocks 21211, the directions of the movable oblique blocks 21211 are the same, and are not parallel to and perpendicular to the width direction of the nozzle channel 215, and have a certain oblique angle, the movable oblique blocks 21211 are embedded in the opening and closing control mechanism, the opening and closing control mechanism slides in the nozzle control channel 2111 along the direction perpendicular to the length direction of the nozzle channel 215, the opening and closing control mechanism extrudes the movable oblique blocks 21211 along the direction perpendicular to the width direction of the nozzle channel 215 and enables the oblique blocks to move along the width direction of the nozzle channel 215, this structure can ensure that the opening and closing plate 2121 is installed with the movable inclined block 21211 to slide synchronously, ensure that the opening and closing plate 2121 is not inclined, the width of the nozzle channel 215 is consistent at each place, the opening and closing plate 2121 has a shaping protrusion 21212 at a side close to the nozzle channel 215, the lowest end of the shaping protrusion 21212 is flush with the lowest end of the second powder suction plate 214 to ensure the integrity of the suction nozzle passage 215.

Wherein, a vortex cavity 216 is formed between the first powder suction plate 213 and the second powder suction plate 214, the cross section of the vortex cavity 216 is arc-shaped, when the gas-powder mixture jet flows through the suction nozzle channel 215, the air in the vortex cavity 216 is driven to rotate to form a vortex, the powder enters the vortex cavity 216 and rubs against the inner wall of the vortex cavity 216 under the action of centrifugal force to generate first dispersion, and when the powder leaves the vortex cavity 216, the powder collides with other powder and the inner wall of the channel at the top of the vortex cavity 216 to generate second dispersion, so that the blockage of the suction nozzle channel 215 is avoided.

In this embodiment, the opening and closing control mechanism includes a width control board 21231 and a width control power assembly in transmission connection with the width control board 21231, the width control power assembly is fixedly mounted on the powder suction nozzle side plate 211 and is in transmission connection with the width control board 21231, the width control board 21231 includes a plurality of control oblique blocks 212311, the directions of the control oblique blocks 212311 are the same, and are not parallel to and perpendicular to the width direction of the nozzle channel 215, the control oblique block 212311 has a certain oblique angle, and the oblique angle is consistent with the oblique angle of each movable oblique block 21211, the control oblique block 212311 penetrates through the nozzle control channel 2111 and extends into the nozzle control cavity 2131 to be embedded into the opening and closing movable plate 2121, the width control board 21231 slides in the nozzle control channel 2111 along the direction perpendicular to the length direction of the nozzle channel 215, the control oblique block 212311 presses the opening and closing movable plate 2121 along the direction perpendicular to the width direction of the nozzle channel 215 and causes the, this structure can ensure that the opening and closing movable plate 2121 is installed with the movable inclined block 21211 and slides synchronously, so that the opening and closing movable plate 2121 is not inclined, the width of the suction nozzle channel 215 is consistent at each position, and the powder suction quality is ensured.

The width control power assembly is a width control gear 21232, the width control plate 21231 is provided with a width control rack section, the width control gear 21232 is fixedly arranged on the powder suction nozzle side plate 211 and meshed with the width control rack section, the width control gears 21233 are fixedly arranged on the width control gears 21232, when the width of the suction nozzle channel 215 needs to be adjusted, the width control rods 21233 are operated, the width control gears 21232 rotate, the width control rack sections move along with the width control gears, the width control plate 21231 further slides along the suction nozzle control channel 2111, and the operation of the width control rods 21233 is labor-saving and convenient.

In this embodiment, the lower paper suction device 3 includes a lower paper suction air box 31, a lower paper suction fan 32 and a lower suction recovery tower 33, the lower paper suction air box 31 is connected to the lower paper suction fan 32, the lower suction recovery tower 33 has a second powder spraying port 331 corresponding to the powder spraying device 5, the lower suction recovery tower 33 is connected to the second secondary recovery input port 72 of the secondary recovery tower 7, the lower paper suction air box 31 is configured to suck the thermal transfer paper passing through the upper side of the lower paper suction air box 31 onto the mesh belt 1, and also can suck and recover the powder on the back side of the thermal transfer paper and the part of the bearer segment 11 not shielded by the thermal transfer paper.

In this embodiment, the lower paper suction box 31 includes a lower paper suction box 311, a closing plate operating rod 312 and a plurality of lower paper suction closing devices 313 installed in the lower paper suction box 311, the lower paper suction box 311 includes a paper suction air inlet plate 3111, the paper suction air inlet plate 3111 is used as the second powder suction port 22 of the upper powder suction device 2, a lower paper suction air inlet hole 31111 is opened on the paper suction air inlet plate 3111, each lower paper suction closing device 313 includes a closing plate assembly 3131, a pair of lower paper suction closing guide rails 3132 and a lower paper suction pushing assembly 3133, the pair of lower paper suction closing guide rails 3132 are oppositely arranged on the inner surface of the lower paper suction air box 31, the closing plate assembly 3131 slides along the lower paper suction closing guide rails 3132, each lower paper suction pushing assembly 3133 is fixedly mounted on the inner surface of the lower paper suction air box 31, the closing plate operating rod 312 extends into the lower paper suction air box body 311 and is detachably connected with each lower paper suction pushing assembly 3133 in a transmission manner, and the closing plate assembly 3131 is connected with the lower paper suction pushing assembly 3133 in a transmission manner.

The reason for this is that: since the thermal transfer paper is always fed to the mesh belt 1 at the same place, the thermal transfer paper is always in the same area of the lower suction air box 31 when passing through the lower suction air box 31, when no thermal transfer paper passes through the upper side of a certain lower suction closing device 313, the closing plate operating lever 312 extends into the lower suction air box 31 to be drivingly connected to the corresponding lower suction paper pushing member 3133, when the closing plate operating lever 312 rotates, the lower suction paper pushing member 3133 operates to push the closing plate member 3131 to slide along the lower suction paper closing guide 3132, and when the closing plate member 3131 is in the upper limit operating position, the paper suction plate 3111 is closed, so that the air flow passes through the place where the thermal transfer paper passes centrally, the suction force to the thermal transfer paper is increased, and the fan power required for sucking the thermal transfer paper is reduced from another angle.

In this embodiment, the lower paper suction bellows 31 further includes a lower paper suction upper sloping plate 3112, the two lower paper suction sealing guide rails 3132 each include a lower paper suction guide rail inclined section and a lower paper suction guide rail horizontal section, the lower paper suction guide rail inclined section and the lower paper suction guide rail horizontal section both include a sealing plate support plate 31321, the sealing plate assembly 3131 includes a lower paper suction sealing plate 31311 and a sealing plate push rod 31312, the lower paper suction sealing plate 31311 is provided with a plurality of sealing plate guide pillars 313111 slidably engaged with the sealing plate support section, the sealing plate guide pillars 313111 slide along the sealing plate support section of the lower paper suction guide rail, the sealing plate push rod 31312 is hinged to the lower paper suction sealing plate 31311, the sealing plate push rod 31312 is drivingly connected to the lower paper suction push assembly 3133, the sealing plate push rod 31312 pushes the lower paper suction sealing plate 31311, the closing plate guide post 313111 gradually climbs up the horizontal section of the lower paper suction guide rail from the inclined section of the lower paper suction guide rail under the guidance of the closing plate bearing section and seals the corresponding area of the paper suction air inlet plate 3111.

In this embodiment, each lower suction paper pushing assembly 3133 includes two pushing gear mounting plates 31331 fixed to the inner surface of the lower suction paper bellows 31 in parallel to each other and a lower suction paper pushing gear 32332 hinged to the pushing gear mounting plate 31331, the lower suction paper pushing gear 32332 is detachably and drivingly connected to the closing plate lever 312 and the lower suction paper pushing gear 32332 is detachably and drivingly connected to the closing plate assembly 3131, the pushing gear mounting plate 31331 is provided with a lever passage hole 313311, the closing plate lever 312 passes through the lever passage hole 313311 and is detachably and drivingly connected to the lower suction paper pushing gear 32332, the closing plate lever 312 includes a lever gear segment 3121 and a lever cylindrical segment 3122, the diameter of the circular base of the lever gear segment 3121 is the same as the diameter of the lever cylindrical segment 3122, the contour of the lever passage hole 313311 is the same as the contour of the lever gear segment 3121, so that the lever gear segment 3121 passes through the lever passage hole 313311, and because the diameter of the gear bottom circle of the lever gear segment 3121 is the same as the diameter of the lever cylindrical segment 3122, the lever cylindrical segment 3122 does not wobble when passing through the lever passage opening 313311.

In this embodiment, the secondary recovery tower 7 comprises a recovery tower discharge pipe, a conical cylinder shell 76, an outer cylinder shell 77, a sealing upper cover 78, a sliding inner cylinder 75, an inner cylinder lifting device and three secondary recovery air inlet pipes 79 which are fixed from bottom to top in sequence, the sealing upper cover 78 is provided with an inner cylinder mounting hole, the sliding inner cylinder 75 penetrates through the inner cylinder mounting hole and slides up and down along the sliding inner cylinder 75, a sealing ring is arranged in the inner cylinder mounting hole to prevent air leakage between the inner cylinder mounting hole and the sliding inner cylinder 75, the recovery tower discharge pipe forms a third powder spraying port 74, the three secondary recovery air inlet pipes 79 are all tangentially arranged on the outer cylinder shell 77, the three secondary recovery air inlet pipes 79 respectively form a secondary recovery first inlet 71 and a secondary recovery second inlet 72 and a secondary recovery third inlet 73, the inner cylinder lifting device is arranged on the top surface of the sealing upper cover 78 and is in transmission connection with the sliding inner cylinder 75, the sliding inner cylinder 75 is driven by the inner cylinder lifting device to move up and down, the height of the sliding inner cylinder 75 is adjusted according to the actual access quantity of the air inlet pipes and the quality requirement of separation, and the problem that the pressure drop caused by the secondary recovery tower 7 is too high to cause insufficient fan power is avoided.

Wherein, a circulation gap 791 is formed between each secondary recovery air inlet pipe 79 and the sliding inner cylinder 75, so that the air flows entering the outer shell cylinder successively can be mutually overlapped, and the dust separation efficiency is high.

In this embodiment, a fin drag reduction core 751 is installed below the sliding inner cylinder 75, the fin drag reduction core 751 comprises a drag reduction core cylinder and two or more fins 7511 intersecting with each other at the center line, and the drag reduction core cylinder is installed below the sliding inner cylinder 75, so that the turbulence of clean gas discharged from the sliding inner cylinder 75 is eliminated, and the energy loss is greatly reduced. .

In this embodiment, an inner cylinder lifting ring 752 is fixedly mounted on the outer circumferential surface of the sliding inner cylinder 75, so as to enhance the structural strength of the sliding inner cylinder 75, the inner cylinder lifting ring 752 is provided with an inner cylinder lifting lug 7521 which is symmetrical with respect to the axis of the sliding inner cylinder 75, a threaded hole 75211 is formed in the inner cylinder lifting lug 7521, the inner cylinder lifting device includes two lifting screws 753, two guide sprockets 754, a driving sprocket 755 and a chain 756 which are axially and vertically arranged on the sealing upper cover 78, a screw sprocket is arranged at the bottom of the lifting screws 753, the chain 756 is sequentially wound around the screw sprocket, the two guide sprockets 754 and the driving sprocket 755, the screw sprocket, the two guide sprockets 754 and the driving sprocket 755 all rotate on the sealing upper cover 78 with the vertical line as the axis, the rotation directions of the two lifting screws 753 are the same, preferably, a lifting handle is mounted on the driving sprocket 755, and only the lifting handle, the lifting screw rods 753 are driven to rotate by the driving chain wheel 755, the guide chain wheel is used for separating the chains 756 from the sliding inner cylinder 75 to avoid interference, the two lifting screw rods 753 can synchronously rotate due to the transmission of the chains 756, the two lifting screw rods 753 are in threaded connection with the corresponding inner cylinder lifting lugs 7521, the sliding inner cylinder 75 can be synchronously lifted, and the sliding inner cylinder 75 is prevented from being damaged due to the fact that the sliding inner cylinder 75 is inclined.

In this embodiment, the mesh belt powder removing device 6 includes a third fan 61, a mesh belt powder removing box 62 and a powder sweeping and brushing device 63, the mesh belt powder removing box 62 has a powder removing port and is connected with the third fan 61, the powder removing port is located at the lower side of the mesh belt recovery section 12, the third fan 61 is connected with the secondary recovery third input port 73 of the secondary recovery tower 7, the powder sweeping and brushing device 63 rubs with the mesh belt recovery section 12 at the upper side of the mesh belt recovery section 12, the powder sweeping and brushing device 63 is located at the upper side of the collecting hopper 4, the powder sweeping and brushing device 63 includes a plurality of powder sweeping and brushing assemblies 631 capable of turning direction, after the powder sweeping and brushing assemblies 631 are used for a period of time, the inevitable brush direction deviates to one side along with the moving direction of the mesh belt 1, the inclination of the powder sweeping and brushing assemblies 631 can be corrected after turning direction, thereby preventing the.

In this embodiment, the brush device 63 further includes a brush rail, the brush rail includes a first ring transition area 6321 and a second ring transition area 6322, the brush component 631 includes a brush limit section 6311, a brush guide section 6312 and a brush section 6313, the brush rail has a rail guide groove 6323 and a rail limit cavity 6324, the brush guide section 6312 slides along the rail guide groove 6323, the brush guide section 6312 follows the trend of the rail guide groove 6323, so that the brush component 631 is always oriented and cannot rotate freely, the brush limit section 6311 is located in the rail limit cavity 6324, the diameter of the brush guide section 6312 is greater than the width of the rail guide groove 6323, and the brush component 631 is prevented from coming off.

In this embodiment, the brush device 63 further includes a brush sprocket 633, the brush guide rail includes a guide rail main body 635 and a sealing arc rail 634, the guide rail main body 635 includes a first ring transition area 6321, the guide rail main body 635 and the sealing arc rail 634 are fixedly mounted and enclose a second ring transition area 6322, the axis of the brush sprocket 633 is located at the axis of the sealing arc rail 634, a brush power wrench 6331 is mounted on the brush sprocket 633, one end of the guide rail main body 635 close to the second ring transition area 6322 is provided with a sprocket escape groove 6351, the sealing arc rail 634 is provided with an arc rail opening 6341, the brush sprocket 633 extends into the sprocket escape groove 6351 and the arc rail opening 6341 to rotate, the brush guide section 6312 is a cylinder, the brush power wrench 6331 drives the brush sprocket 633 to rotate when rotating, the brush guide section 6312 cooperates with the brush sprocket 633 to be carried along the arc rail sprocket 633 to slide along the brush sprocket, each brush assembly is driven by the brush sprocket 63631 to slide along the guide rail main body 635 to the first ring transition area 634, and then winds back from the first annular transition area 6321, so as to realize the direction turning of the sweeping brush assembly 631.

In this embodiment, the brush rail is mounted with an elastic fastener 636, the elastic fastener 636 is used to elastically pull the brush assembly 631 to eliminate the gap between the brush assemblies 631, and the elastic fastener 636 is preferably an elastic rubber belt.

In this embodiment, the powder spraying device 5 comprises a light-operated inductive switch, a powder spraying hopper and a powder spraying roller group, the bottom of the powder spraying hopper is provided with a main powder spraying opening 51, when the light-operated inductive switch senses paper, the powder spraying roller group is instructed to rotate and spray powder through the main powder spraying opening 51, when the light-operated inductive switch does not sense the paper, the powder spraying roller group is instructed to spray powder through stopping rotation and make the main powder spraying opening 51 spray powder without spraying powder, energy is saved, and equipment loss is reduced.

In this embodiment, the powder spraying roller set comprises two opposite powder spraying rollers, a powder spraying channel is formed between the two powder spraying rollers, the powder spraying channel is located at the lower side of the main powder spraying opening 51, and the powder falling speed is controlled by the rotation of the powder spraying rollers.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. Hot melt adhesive powder spraying machine, its characterized in that: the powder spraying device is positioned on the upper side of a mesh belt bearing section above the collecting hopper and is provided with a main powder spraying port, a first powder absorbing port of the upper powder absorbing device is positioned on the upper side of the mesh belt bearing section, a second powder absorbing port of the upper powder absorbing device is connected with the bottom of the collecting hopper, the first powder absorbing port and the second powder absorbing port are connected through an upper powder absorbing pipe A, an air outlet of the upper powder absorbing device is connected with a first secondary recovery input port of the secondary recovery tower, a paper absorbing port of the lower powder absorbing device is positioned on the lower side of the mesh belt bearing section, an exhaust port of the lower powder absorbing device is connected with a second secondary recovery input port of the secondary recovery tower, the upper powder absorbing device and the lower powder absorbing device are both connected with the powder spraying device, the mesh belt powder removing device is connected with a third secondary recovery input port of the secondary recovery tower, and a powder removing port of the mesh belt powder removing device is positioned on the lower side of the mesh belt recovery section, the secondary recovery tower is provided with a third powder spraying opening which is connected with a powder suction pipe A.

2. The hot melt adhesive powder applicator according to claim 1, wherein: the upper powder suction device comprises an upper powder suction nozzle, an upper suction recovery tower and an upper suction fan, the upper powder suction nozzle is a first powder suction port and is connected with the upper suction fan, the upper suction recovery tower is provided with a first powder spraying port corresponding to the powder spraying device, and an air outlet of the upper suction recovery tower is connected with a first secondary recovery input port of a secondary recovery tower.

3. The hot melt adhesive powder applicator according to claim 2, wherein: go up to inhale recovery tower bottom and be equipped with the lower powder switch that corresponds with the unrestrained powder device, the lower powder switch is including installing at the switch barrel and the switch route selection device of last absorption recovery tower bottom, be equipped with on the switch barrel and advance powder mouth, two switches play powder mouths with the switch that last absorption recovery tower is connected, the switch advances powder mouth and each switch and goes out the powder mouth and all communicate with switch route selection device, switch route selection device is along switch barrel axial slip, each switch advances the powder mouth and goes out the powder mouth with the switch respectively and all not communicate along the gliding whole in-process of switch barrel at switch route selection device, each switch goes out the powder mouth and constitutes first unrestrained powder mouth.

4. The hot melt adhesive powder applicator according to claim 2, wherein: the upper powder suction nozzle comprises two powder suction nozzle side plates, a powder suction opening-closing device, a first powder suction plate and a second powder suction plate, the first powder suction plate and the second powder suction plate are oppositely and fixedly arranged between the two powder suction nozzle side plates, a suction nozzle channel is formed between the first powder suction plate and the second powder suction plate, the first powder suction plate is provided with a suction nozzle control cavity at the suction nozzle channel, the side plates of the powder suction nozzle are provided with suction nozzle control channels communicated with the suction nozzle control cavity, the powder suction opening and closing device comprises an opening and closing movable plate and an opening and closing control mechanism, the opening and closing movable plate is arranged in the suction nozzle control cavity, two ends of the opening and closing movable plate are in sliding friction with corresponding powder suction nozzle side plates, the opening and closing control mechanism penetrates through the suction nozzle control channel, extends into the suction nozzle control cavity and is in transmission connection with the opening and closing movable plate, the opening and closing movable plate slides in the suction nozzle control cavity along the width direction of the suction nozzle channel under the transmission of the opening and closing control mechanism.

5. The hot melt adhesive powder applicator according to claim 1, wherein: the lower paper suction device comprises a lower paper suction air box, a lower paper suction fan and a lower suction recovery tower, the lower paper suction air box is connected with the lower paper suction fan, the lower suction recovery tower is provided with a second powder spraying port corresponding to the powder spraying device, and the lower suction recovery tower is connected with a second recovery second input port of the secondary recovery tower.

6. The hot melt adhesive powder applicator according to claim 5, wherein: the lower paper suction air box comprises a lower paper suction air box body, a closed plate operating rod and a plurality of lower paper suction closed devices arranged in the lower paper suction air box body, the lower paper suction air box body comprises a paper suction air inlet plate, each lower paper suction closed device comprises a closed plate component, a pair of lower paper suction closed guide rails and a lower paper suction pushing component, the pair of lower paper suction closed guide rails are oppositely arranged on the inner surface of the lower paper suction air box, each lower paper suction pushing component is fixedly arranged on the inner surface of the lower paper suction air box, the closed plate operating rod stretches into the lower paper suction air box body and is detachably connected with each lower paper suction pushing component in a transmission mode, the closed plate component is connected with the lower paper suction pushing component in a transmission mode, and the closed paper suction air inlet plate is arranged in the upper limit working position.

7. The hot melt adhesive powder applicator according to claim 1, wherein: the guipure gumming device includes third fan, guipure gumming case and sweeps whitewashed device, the guipure gumming case has the gumming mouth and connects the third fan, the gumming mouth is located guipure recovery section downside, the third fan is connected the secondary and is retrieved the third input port of tower, sweep whitewashed device retrieve the section upside at the guipure and retrieve the section friction with the guipure, sweep whitewashed device and be located the collecting hopper upside, sweep whitewashed device and include a plurality of sweeping whitewashed subassemblies that can transfer the direction.

8. The hot melt adhesive powder applicator according to claim 1, wherein: the secondary recovery tower includes that recovery tower delivery pipe, awl bobbin case, outer bobbin case, sealed upper cover, slip interior barrel, interior barrel elevating gear and the three secondary recovery air-supply line of fixing in proper order from bottom to top, sealed upper cover is equipped with interior barrel mounting hole, slip interior barrel passes interior barrel mounting hole and slides from top to bottom along the slip interior barrel, recovery tower delivery pipe constitutes the third and spills whitewashed mouth, the equal tangential setting of air-supply line is retrieved on the outer bobbin case to three secondary, the air-supply line is retrieved to three secondary constitutes the secondary respectively and retrieves first input port, secondary and retrieves second input port secondary and retrieves the third input port, inner tube elevating gear installs at sealed upper cover top surface and transmission connection slip interior barrel.

9. The hot melt adhesive powder applicator according to claim 1, wherein: the powder sprinkling device comprises a light-operated inductive switch, a powder sprinkling hopper and a powder sprinkling roller set, wherein a main powder sprinkling opening is formed in the bottom of the powder sprinkling hopper, the light-operated inductive switch senses a command when the paper is sensed by the powder sprinkling roller set rotates and sprinkles powder through the main powder sprinkling opening, and the light-operated inductive switch senses no paper by the command when the paper is sensed by the powder sprinkling roller set stops rotating and enables the main powder sprinkling opening to sprinkle powder without sprinkling powder.

10. The hot melt adhesive powder applicator according to claim 1, wherein: the powder spraying roller group comprises two opposite powder spraying rollers, a powder spraying channel is formed between the two powder spraying rollers, and the powder spraying channel is located on the lower side of the main powder spraying opening.