阅读说明：本技术 一种精细喷胶枪及其喷胶方法 (Fine glue spraying gun and glue spraying method thereof ) 是由 王睦雄 林懿 于 2021-02-27 设计创作，主要内容包括：本发明涉及一种精细喷胶枪,包括枪体和枪嘴,枪嘴设置在枪体的下端,其特征在于：还包括风刀嘴；风刀嘴可拆卸安装在所述枪体下端并处于所述枪嘴的外侧,枪体上设有两条相对设置的进风通道,风刀嘴上设有两条出风通道和两个条形风刀口,出风通道与相应的进风通道连通,两个条形风刀口分别处于枪嘴的两侧并且沿水平方向设置。本发明还提供上述精细喷胶枪的一种喷胶方法。这种精细喷胶枪能够喷出精细胶丝,精确对鞋面边缘进行上胶,使鞋面边缘的胶层均匀分布,避免胶水喷射到鞋面上,提高鞋子的成品率。(The invention relates to a fine glue spraying gun, which comprises a gun body and a gun nozzle, wherein the gun nozzle is arranged at the lower end of the gun body, and is characterized in that: the air knife also comprises an air knife mouth; air knife mouth demountable installation be in rifle body lower extreme and be in the outside of rifle mouth is equipped with two inlet channel that set up relatively on the rifle body, is equipped with two air-out passageways and two bar wind knife edges on the air knife mouth, and air-out passageway and corresponding inlet channel intercommunication, two bar wind knife edges are in the both sides of rifle mouth respectively and set up along the horizontal direction. The invention also provides a glue spraying method of the fine glue spraying gun. The fine glue spraying gun can spray fine glue wires and precisely glue the edges of the vamps, so that glue layers at the edges of the vamps are uniformly distributed, the situation that glue is sprayed on the vamps is avoided, and the yield of shoes is improved.)

1. The utility model provides a meticulous glue gun that spouts, includes the rifle body and rifle mouth, the setting of rifle mouth is at the lower extreme of the rifle body, its characterized in that: the air knife also comprises an air knife mouth; air knife mouth demountable installation be in rifle body lower extreme and be in the outside of rifle mouth is equipped with two inlet channel that set up relatively on the rifle body, is equipped with two air-out passageways and two bar wind knife edges on the air knife mouth, and air-out passageway and corresponding inlet channel intercommunication, two bar wind knife edges are in the both sides of rifle mouth respectively and set up along the horizontal direction.

2. The fine spray gun of claim 1, wherein: the lower end of the gun nozzle is provided with a strip-shaped glue outlet which is arranged along the horizontal direction and is vertical to the strip-shaped air knife edge, and the strip-shaped glue outlet and the two strip-shaped air knife edges form an I-shaped structure.

3. The fine glue gun as recited in claim 2, further comprising: the length direction of the strip-shaped glue outlet is vertical to the moving direction of the fine glue spraying gun.

4. The fine glue gun as recited in claim 2, further comprising: the glue gun comprises a gun body and is characterized in that a glue inlet channel, a glue outlet channel and an air inlet channel are arranged in the gun body, the glue inlet channel is communicated with the glue outlet channel, a mandrel is arranged in the glue outlet channel, and the mandrel can move axially in the glue outlet channel; an air outlet channel and a vertically arranged small glue outlet flow channel are arranged in the gun nozzle, the upper end of the small glue outlet flow channel is communicated with the glue outlet channel, the lower end of the small glue outlet flow channel is communicated with the strip-shaped glue outlet, an air inlet at the upper end of the air outlet channel is communicated with the air inlet channel, and an air outlet at the lower end of the air outlet channel is communicated with the middle part of the small glue outlet flow channel;

an air inlet joint and an air quantity regulating valve are arranged on the outer side of the gun body, an air outlet of the air inlet joint is communicated with the air inlet channel, and the air quantity regulating valve is arranged on the air inlet joint and can control the air inlet quantity of the air inlet joint;

an air inlet joint and a glue spraying air flow regulating valve are arranged on the outer side of the gun body, an air outlet of the air inlet joint is communicated with the air inlet channel, and the glue spraying air flow regulating valve is arranged on the air inlet joint and can control the air inlet amount of the air inlet joint;

the outside of the gun body is provided with a glue joint, and a glue outlet of the glue joint is communicated with the glue inlet channel.

5. The fine glue gun as recited in claim 4, further comprising: the air outlet channel comprises an annular air passage and a conical ring air passage with a large upper part and a small lower part, the annular air passage is positioned above the conical ring air passage, and the annular air passage and the conical ring air passage are positioned on the outer side of the small glue outlet flow passage; the annular air passage is communicated with the air inlet passage, the upper end air inlet of the conical ring air passage is communicated with the annular air passage, and the lower end air outlet of the conical ring air passage is communicated with the middle part of the glue outlet small flow passage.

6. The fine glue gun as recited in claim 4, further comprising: the upper end of the mandrel is in transmission connection with a power output end of the driving device; the driving device comprises an air cylinder seat, an air cylinder and a sealing ring, the air cylinder seat is arranged at the upper end of the gun body, a vertical inner cavity is formed in the air cylinder seat, the air cylinder is arranged above the air cylinder seat, and a piston rod of the air cylinder is arranged downwards and extends into the vertical inner cavity; the vertical inner cavity is communicated with the glue outlet channel, the upper end of the mandrel extends into the vertical inner cavity from bottom to be in transmission connection with the tail end of a piston rod of the air cylinder, and the sealing ring is sleeved on the mandrel and fixed at the lower end outlet of the vertical inner cavity.

7. The fine glue gun as recited in claim 6, further comprising: a first locking nut, a diaphragm plate and a second locking nut are arranged between the lower end outlet of the vertical inner cavity and the glue outlet channel, the first locking nut, the diaphragm plate and the second locking nut are sequentially sleeved on the mandrel from top to bottom, and the diaphragm plate is fixed on the mandrel through the matching of the first locking nut and the second locking nut; the diaphragm plate is made of polytetrafluoroethylene.

8. The fine spray gun of claim 1, wherein:

the air knife nozzle is provided with at least two through holes, the lower end of the gun body is provided with at least two screw holes, the screw holes and the through holes are the same in number and correspond to each other one by one, screws are installed in the screw holes, the rod parts of the screws penetrate through the corresponding through holes, and the head parts of the screws and the lower end surface of the gun body clamp the air knife nozzle together;

the gun nozzle is detachably arranged at the lower end of the gun body; the rifle body lower extreme is equipped with and holds the annular groove of rifle mouth, the opening of annular groove sets up down, and the inside wall of annular groove is equipped with the internal thread, and the lateral wall of rifle mouth is equipped with and sets up in the annular groove with this internal thread assorted external screw thread, and the rifle mouth passes through external screw thread and internal screw thread cooperation.

9. A glue spraying method is characterized in that: two strip-shaped air knife edges are arranged on two sides of a gun nozzle of the glue spraying gun, two air curtains are generated on two sides of sprayed glue while glue is sprayed, the two air curtains follow the movement and the steering of the glue spraying gun, and the two air curtains block the diffusion of the sprayed glue.

10. The glue-spraying method according to claim 9, characterized in that: use of a fine glue gun as claimed in claims 1-8 above.

Technical Field

The invention relates to shoe making equipment, in particular to a fine glue spraying gun and a glue spraying method thereof.

Background

In the shoe manufacturing industry, the sole and the vamp are generally produced separately, and then the sole and the vamp are mutually attached by adopting a glue attaching mode, so that a glue layer needs to be coated on the edge of the vamp in advance, the glue layer needs to meet a certain width requirement, and the edge of the vamp cannot be completely coated. The rubberizing process at traditional vamp edge is by artifical rubberizing, need on the ruling machine or workman manual drawing out a rubberizing line, then a vamp is held to the reuse hand, rubberizes one by one to every vamp edge through the rubberizing device, and this kind of artifical rubberizing operation is not only with high costs, and work efficiency is low, and rubberizing quality at every turn is unstable easily moreover, causes the spary inhomogeneous easily: the width of the glue layer is not uniform; the edges of some vamps are sprayed too much, glue is easy to drip to the vamps, and the glue is wasted; some vamp edges are too little sprayed, so that later-period untight adhesion between the vamp edges and the soles is easily caused.

At present, many enterprises in the trade all adopt automatic gluey equipment of spouting to carry out shoemaking production, improve production efficiency on the one hand, on the other hand reduces operating personnel and chemical reagent's contact, reduces the probability that the health was hurt. But most automatic sole spouts gluey equipment all adopts the spray gun of different bores, utilizes the removal of manipulator, spouts the gluey operation of applying to the vamp automatically, because the spray gun directly spouts to glue is the divergence and sprays, not only glue distributes inhomogeneous easily, and glue sprays easily moreover on the vamp, influences the shoes quality, leads to some vamp to require higher shoes directly to scrap even.

Disclosure of Invention

The invention aims to provide a fine glue spraying gun which can spray fine glue wires and precisely glue the edges of vamps, so that glue layers at the edges of the vamps are uniformly distributed, the glue is prevented from being sprayed on the vamps, and the yield of shoes is improved.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a meticulous glue gun that spouts, includes the rifle body and rifle mouth, the setting of rifle mouth is at the lower extreme of the rifle body, its characterized in that: the air knife also comprises an air knife mouth; air knife mouth demountable installation be in rifle body lower extreme and be in the outside of rifle mouth is equipped with two inlet channel that set up relatively on the rifle body, is equipped with two air-out passageways and two bar wind knife edges on the air knife mouth, and air-out passageway and corresponding inlet channel intercommunication, two bar wind knife edges are in the both sides of rifle mouth respectively and set up along the horizontal direction.

The air inlet channels which are oppositely arranged are arranged inside the gun body, the two air outlet channels and the two strip-shaped air knife edges are arranged on the air knife nozzle, the two strip-shaped air knife edges are respectively positioned at two sides of the gun nozzle, when the air inlet channels are externally connected with an air source, the air blown out by the air source is blown out from the two air inlet channels towards the corresponding air outlet channels and the strip-shaped air knife edges, and two vertical air curtains blowing downwards are formed.

As a preferable scheme of the invention, the lower end of the gun nozzle is provided with a strip-shaped glue outlet which is arranged along the horizontal direction and is vertical to the strip-shaped air knife edge, and the strip-shaped glue outlet and the two strip-shaped air knife edges form an I-shaped structure. The length of the strip-shaped glue outlet is used for setting the width of the sprayed glue thread. The I-shaped structure is an integral structure and cannot be changed along with the movement and the steering of the glue gun, so that the two air curtains are always positioned at two sides of sprayed glue filaments.

As a further preferable scheme of the present invention, the length direction of the strip-shaped glue outlet is perpendicular to the moving direction of the fine glue gun. Through the arrangement, in the moving process of the fine glue spraying gun, glue can not be sprayed on the vamp in the length direction of the strip glue outlet.

As a preferable scheme of the invention, at least two through holes are arranged on the air knife nozzle, at least two screw holes are arranged at the lower end of the gun body, the screw holes are the same in number and correspond to the through holes one by one, screws are arranged in the screw holes, the rod parts of the screws penetrate through the corresponding through holes, and the head parts of the screws and the lower end surface of the gun body clamp the air knife nozzle together. Through this kind of setting, realize air knife mouth demountable installation at rifle body lower extreme.

As a preferred scheme of the invention, a glue inlet channel, a glue outlet channel and an air inlet channel are arranged in the gun body, the glue inlet channel is communicated with the glue outlet channel, a mandrel is arranged in the glue outlet channel, and the mandrel can move axially in the glue outlet channel; be equipped with air outlet channel and the play of vertical setting in the rifle mouth and glue the small runner, go out the upper end and the play of gluing the channel intercommunication of gluing the small runner, go out the lower extreme of gluing the small runner with strip goes out the jiao kou intercommunication, air outlet channel's upper end air inlet and inlet channel intercommunication, air outlet channel's lower extreme gas outlet and the middle part intercommunication of going out the small runner that glues. After the air inlet channel is externally connected with the air source and the glue inlet channel is externally connected with the glue source, air flow blown out by the air source is blown to the glue outlet small runner from the air inlet channel to the air outlet channel, so that the glue of the glue outlet small runner can be sprayed out from the strip glue outlet at higher pressure.

As a further preferable scheme of the invention, the air outlet channel comprises an annular air passage and a conical ring air passage with a large upper part and a small lower part, the annular air passage is positioned above the conical ring air passage, and the annular air passage and the conical ring air passage are both positioned at the outer side of the small glue outlet flow passage; the annular air passage is communicated with the air inlet passage, the upper end air inlet of the conical ring air passage is communicated with the annular air passage, and the lower end air outlet of the conical ring air passage is communicated with the middle part of the glue outlet small flow passage. The air inlet channel blows air flow to the annular air passage and the conical ring air passage in sequence, so that the air flow can be uniformly blown to the glue outlet small flow passage, and the glue of the glue outlet small flow passage is blown by 360 degrees.

As a further preferable scheme of the invention, the gun further comprises a driving device, the driving device is arranged at the upper end of the gun body, and the upper end of the mandrel is in transmission connection with a power output end of the driving device. The driving device drives the mandrel to axially move in the glue outlet channel, so that the opening or closing of the strip-shaped glue outlet is controlled, and the glue outlet amount is controlled.

As a further preferable scheme of the invention, the driving device comprises a cylinder seat, a cylinder and a sealing ring, the cylinder seat is mounted at the upper end of the gun body, a vertical inner cavity is arranged in the cylinder seat, the cylinder is mounted above the cylinder seat, and a piston rod of the cylinder is arranged downwards and extends into the vertical inner cavity; the vertical inner cavity is communicated with the glue outlet channel, the upper end of the mandrel extends into the vertical inner cavity from bottom to be in transmission connection with the tail end of a piston rod of the air cylinder, and the sealing ring is sleeved on the mandrel and fixed at the lower end outlet of the vertical inner cavity. The air cylinder drives the mandrel to axially move in the vertical inner cavity and the glue outlet channel.

As a still further preferable scheme of the present invention, a first locking nut, a diaphragm plate and a second locking nut are disposed between the lower outlet of the vertical inner cavity and the glue outlet channel, the first locking nut, the diaphragm plate and the second locking nut are sequentially sleeved on the mandrel from top to bottom, and the diaphragm plate is fixed on the mandrel through the cooperation of the first locking nut and the second locking nut. The lower end outlet of the vertical inner cavity is separated from the glue outlet channel through the diaphragm plate, and glue in the glue outlet channel cannot flow to the lower end outlet of the vertical inner cavity.

In still another preferred embodiment of the present invention, the diaphragm plate is made of polytetrafluoroethylene. The polytetrafluoroethylene is abbreviated as PTFE, is commonly called 'plastic king', is a high molecular polymer prepared by polymerizing tetrafluoroethylene serving as a monomer, has good sealing property and high non-stickiness, is the one with the minimum surface tension in a solid material, and does not adhere any substance. Because polytetrafluoroethylene has the non-adhesion, glue in the play gluey passageway can not adhere in the lower surface of diaphragm plate, avoids going out gluey passageway and takes place to block up.

As a preferable scheme of the invention, the gun nozzle is detachably arranged at the lower end of the gun body; the rifle body lower extreme is equipped with and holds the annular groove of rifle mouth, the opening of annular groove sets up down, and the inside wall of annular groove is equipped with the internal thread, and the lateral wall of rifle mouth is equipped with and sets up in the annular groove with this internal thread assorted external screw thread, and the rifle mouth passes through external screw thread and internal screw thread cooperation. Through the arrangement, the gun nozzle can be detachably arranged at the lower end of the gun body, so that the gun nozzle is convenient to replace or dredge.

As a preferred scheme of the invention, an air inlet joint and an air volume regulating valve are arranged on the outer side of the gun body, an air outlet of the air inlet joint is communicated with the air inlet channel, and the air volume regulating valve is arranged on the air inlet joint and can control the air inlet volume of the air inlet joint. The air inlet of the air inlet joint is externally connected with an air source, and the air inlet amount of the air inlet joint is adjusted through an air volume adjusting valve.

As a preferable scheme of the invention, an air inlet joint and a glue spraying air flow regulating valve are arranged on the outer side of the gun body, an air outlet of the air inlet joint is communicated with the air inlet channel, and the glue spraying air flow regulating valve is arranged on the air inlet joint and can control the air inlet amount of the air inlet joint.

As the preferable scheme of the invention, the outer side of the gun body is provided with a glue joint, and a glue outlet of the glue joint is communicated with the glue inlet channel.

A glue spraying method is characterized in that: two strip-shaped air knife edges are arranged on two sides of a gun nozzle of the glue spraying gun, two air curtains are generated on two sides of sprayed glue while glue is sprayed, the two air curtains follow the movement and the steering of the glue spraying gun, and the two air curtains block the diffusion of the sprayed glue.

In a preferred embodiment of the present invention, the above-mentioned fine glue gun is used as the glue spraying method.

Compared with the prior art, the invention has the following advantages:

the fine glue spraying gun can spray fine glue wires and precisely glue the edges of the vamps, so that glue layers at the edges of the vamps are uniformly distributed, the situation that glue is sprayed on the vamps is avoided, and the yield of shoes is improved.

Drawings

FIG. 1 is a schematic block diagram of an embodiment of the present invention;

fig. 2 is a bottom view of fig. 1.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the fine glue gun in this embodiment includes a gun body 1, a gun nozzle 2 and a wind knife edge 3, the gun nozzle 2 is disposed at a lower end of the gun body 1, the wind knife edge 3 is detachably mounted at a lower end of the gun body 1 and is located at an outer side of the gun nozzle 2, the gun body 1 is provided with two wind inlet channels 11 which are oppositely disposed, the wind knife edge 3 is provided with two wind outlet channels 31 and two strip wind knife edges 32, the wind outlet channels 31 are communicated with the corresponding wind inlet channels 11, and the two strip wind knife edges 32 are respectively located at two sides of the gun nozzle 2 and are arranged along a horizontal direction.

The gun nozzle 2 is provided with a strip-shaped glue outlet 21, the strip-shaped glue outlet 21 is arranged along the horizontal direction and is vertical to the strip-shaped air knife edge 32, and the strip-shaped glue outlet 21 and the two strip-shaped air knife edges 32 form an I-shaped structure. The length of the strip-shaped glue outlet 21 is used for setting the width of the sprayed glue thread. The I-shaped structure is an integral structure and cannot be changed along with the movement and the steering of the glue gun, so that the two air curtains are always positioned at two sides of sprayed glue filaments.

The length direction of the strip-shaped glue outlet 21 is vertical to the moving direction of the fine glue gun. Through the arrangement, in the moving process of the fine glue spraying gun, glue can not be sprayed on the vamp in the length direction of the strip glue outlet 21.

The air knife nozzle 3 is provided with three through holes 33, the lower end of the gun body 1 is provided with three screw holes 12, screws 13 are arranged in the screw holes 12, the rod parts of the screws 13 penetrate through the corresponding through holes 33, and the head parts of the screws 13 and the lower end surface of the gun body 1 clamp the air knife nozzle 3 together. Through the arrangement, the air knife nozzle 3 can be detachably arranged at the lower end of the gun body 1.

A glue inlet channel 14, a glue outlet channel 15 and an air inlet channel 16 are arranged in the gun body 1, the glue inlet channel 14 is communicated with the glue outlet channel 15, a mandrel 17 is arranged in the glue outlet channel 15, and the mandrel 17 can move axially in the glue outlet channel 15; be equipped with air outlet channel 22 and the play of vertical setting in rifle mouth 2 and glue the small runner 23, go out the upper end and the play gluey passageway 15 intercommunication of gluing the small runner 23, go out the lower extreme and the strip of gluing the mouth 21 intercommunication of gluing the small runner 23, air outlet channel 22's upper end air inlet and air inlet channel 16 intercommunication, air outlet channel 22's lower extreme gas outlet and the middle part intercommunication of the small runner 23 that goes out to glue. When the air inlet channel 16 is externally connected with an air source and the glue inlet channel 14 is externally connected with a glue source, air flow blown out by the air source is blown into the glue outlet small flow channel 23 from the air inlet channel 16 to the air outlet channel 22, so that the glue in the glue outlet small flow channel 23 can be sprayed out from the strip-shaped glue outlet 21 at a higher pressure.

The air outlet channel 22 comprises an annular air channel 221 and a conical ring air channel 222 with a large upper part and a small lower part, the annular air channel 221 is positioned above the conical ring air channel 222, and the annular air channel 221 and the conical ring air channel 222 are both positioned at the outer side of the small glue outlet flow channel 23; the annular air passage 221 is communicated with the air inlet passage 16, an air inlet at the upper end of the conical annular air passage 222 is communicated with the annular air passage 221, and an air outlet at the lower end of the conical annular air passage 222 is communicated with the middle part of the glue outlet small flow passage 23. The air inlet channel 16 blows air flow to the annular air channel 221 and the conical air channel 222 in sequence, so that the air flow can be uniformly blown to the glue outlet small flow channel 23, and the glue in the glue outlet small flow channel 23 is blown by 360 degrees.

The fine glue spraying gun further comprises a driving device 4, the driving device 4 is installed at the upper end of the gun body 1, and the upper end of the mandrel 17 is in transmission connection with the power output end of the driving device 4. The driving device 4 drives the mandrel 17 to perform axial movement in the glue outlet channel 15, so as to control the opening or closing of the strip glue outlet 21 and the glue outlet amount.

The driving device 4 comprises an air cylinder seat 41, an air cylinder 42 and a sealing ring 43, the air cylinder seat 41 is installed at the upper end of the gun body 1, a vertical inner cavity 411 is arranged inside the air cylinder seat 41, the air cylinder 42 is installed above the air cylinder seat 41, and a piston rod of the air cylinder 42 is arranged downwards and extends into the vertical inner cavity 411; the vertical inner cavity 411 is communicated with the glue outlet channel 15, the upper end of the mandrel 17 extends into the vertical inner cavity 411 from the bottom and is in transmission connection with the tail end of a piston rod of the air cylinder 42, and the sealing ring 43 is sleeved on the mandrel 17 and fixed at the lower end outlet of the vertical inner cavity 411. The air cylinder 42 drives the mandrel 17 to move axially in the vertical cavity 411 and the glue outlet channel 15.

A first locking nut 5, a diaphragm plate 6 and a second locking nut 7 are arranged between the lower end outlet of the vertical inner cavity 411 and the glue outlet channel 15, the first locking nut 5, the diaphragm plate 6 and the second locking nut 7 are sequentially sleeved on the mandrel 17 from top to bottom, and the diaphragm plate 6 is fixed on the mandrel 17 through the matching of the first locking nut 5 and the second locking nut 7. The lower outlet of the vertical inner cavity 411 is separated from the glue outlet channel 15 by the diaphragm plate 6, and the glue in the glue outlet channel 15 can not flow to the lower outlet of the vertical inner cavity 411.

The diaphragm plate 6 is made of polytetrafluoroethylene. The polytetrafluoroethylene is abbreviated as PTFE, is commonly called 'plastic king', is a high molecular polymer prepared by polymerizing tetrafluoroethylene serving as a monomer, has good sealing property and high non-stickiness, is the one with the minimum surface tension in a solid material, and does not adhere any substance. Because polytetrafluoroethylene has the non-adhesion, glue in the glue outlet channel 15 can not adhere to the lower surface of the diaphragm plate 6, and the glue outlet channel 15 is prevented from being blocked.

The gun nozzle 2 is detachably arranged at the lower end of the gun body 1; the lower extreme of the rifle body 1 is equipped with the annular groove 18 that can hold rifle mouth 2, and the opening of annular groove 18 sets up down, and the inside wall of annular groove 18 is equipped with the internal thread, and the lateral wall of rifle mouth 2 is equipped with and this internal thread assorted external screw thread, and rifle mouth 2 sets up in annular groove 18 through external screw thread and internal screw thread cooperation. Through this kind of setting for rifle mouth 2 demountable installation is at rifle body 1 lower extreme, is convenient for change or dredge rifle mouth 2.

The outside of the gun body 1 is provided with an air inlet joint 8 and an air volume regulating valve 9, an air outlet of the air inlet joint 8 is communicated with an air inlet channel 11, and the air volume regulating valve 9 is arranged on the air inlet joint 8 and can control the air inlet volume of the air inlet joint 8. An air inlet of the air inlet joint 8 is externally connected with an air source, and the air inlet quantity of the air inlet joint 8 is adjusted through an air quantity adjusting valve 9.

The outside of the gun body 1 is provided with an air inlet joint 101 and a glue spraying air flow regulating valve 102, an air outlet of the air inlet joint 101 is communicated with an air inlet channel 16, and the glue spraying air flow regulating valve 102 is installed on the air inlet joint 101 and can control the air inflow of the air inlet joint 101.

The outside of the gun body 1 is provided with a glue joint 103, and a glue outlet of the glue joint 103 is communicated with the glue inlet channel 14.

The glue spraying method of the fine glue spraying gun comprises the following steps: two strip-shaped air knife edges 32 are arranged on two sides of a gun nozzle 2 of the glue spraying gun, two air curtains are generated on two sides of sprayed glue while the glue is sprayed by the two strip-shaped air knife edges 32, the two air curtains follow the movement and the steering of the glue spraying gun, and the two air curtains block the diffusion of the sprayed glue.

Two air inlet channels 11 which are oppositely arranged are arranged inside the gun body 1, two air outlet channels 31 and two strip-shaped air knife edges 32 are arranged on the air knife mouth 3, the two strip-shaped air knife edges 32 are respectively positioned at two sides of the gun mouth 2, when the air source is externally connected with the air source by the air source, the air blown out by the air source is blown out from the two air inlet channels 11 to the corresponding air outlet channels 31 and the strip-shaped air knife edges 32 to form two air curtains which blow vertically downwards, because the two strip-shaped air knife edges 32 are positioned at the outer side of the gun mouth 2, no matter how the whole glue gun rotates, the glue silk sprayed out of the gun mouth 2 is blocked by the two air curtains, the sprayed glue silk can not be sprayed and spread, the sprayed glue silk is ensured to be very fine, the glue silk which is too wide can be just blown out when the width of the preset glue silk is too large, the vamp edge can be precisely glued, the glue layer at the vamp edge is uniformly distributed, the yield of the shoes is improved.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and the equivalent or simple change of the structure, the characteristics and the principle described in the present patent idea is included in the protection scope of the present patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.