Automatic hot melt adhesive dispensing machine

Abstract

The utility model belongs to the technical field of hot melt adhesive for shoemaking, and discloses an automatic hot melt adhesive dispensing machine which comprises a base, a support and a box body, and the box body is divided into an adhesive supply bin and an adhesive stick sliding groove cavity by a partition plate; the top wall of the glue supply bin and the top of the partition plate are obliquely arranged, and the top of the partition plate and the top wall of the glue supply bin incline in the same direction. A glue supply device is arranged between the top wall of the glue supply bin and the partition plate; a glue feeding groove is formed in the top wall of the glue stick sliding groove cavity, an arc-shaped sliding groove is formed in the bottom of the glue feeding groove, and the arc-shaped sliding groove is obliquely formed and extends to a glue outlet formed in the bottom of the side wall of the glue stick sliding groove cavity; a supporting plate is fixedly arranged below the glue outlet, a mounting plate is fixedly arranged at the bottom of the arc-shaped sliding groove, and the other end of the mounting plate is fixedly connected with the upper surface of the supporting plate. A sliding rail, a hot melt glue gun and a glue stick conveying device are fixedly arranged on the upper surface of the mounting plate. The glue stick automatic feeding device is convenient to use, can realize automatic feeding of glue sticks, heats the glue sticks and automatically discharges glue, reduces processing cost, improves production efficiency and increases economic benefits.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot melt adhesive for shoe making and relates to an automatic hot melt adhesive dispensing machine. Background Art

[0002] During the production and processing of shoes, glue needs to be dispensed to make them fit more tightly, such as the glue dispensing process of the outsole. The traditional glue dispensing process is usually done manually, but the consistency of manual glue dispensing is poor and the technical level of workers is also required to be high. Therefore, glue dispensing machines are generally used for glue dispensing. Glue dispensing machines are also called glue coating machines, glue dripping machines, glue spraying machines, glue filling machines, etc. They are automated machines that specialize in controlling fluids and dripping and applying fluids on the surface or inside of products.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN210353465U discloses a glue-dispensing shoe mechanism, including a base, an electric telescopic rod installed on the top right side of the base, a fixed arm installed on the left side of the electric telescopic rod, a glue-dispensing tube installed vertically on the left end of the fixed arm, a glue outlet hole opened at the bottom of the glue-dispensing tube, and a steel ball placed in the glue outlet hole. Although the glue-dispensing shoe mechanism can produce a gap by pushing up the steel ball located in the glue outlet hole, so that the glue in the glue-dispensing tube will flow along the gap to the sole to achieve glue dispensing, it requires continuous manual addition of glue, which increases the workload, and if the glue injection time is too long, it will cause the glue to solidify, which not only causes a waste of energy, but also seriously affects the progress of production, greatly reducing production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic hot melt glue dispensing machine, which realizes automatic loading of glue sticks and heating of glue sticks for dispensing through a glue supply device, a glue stick conveying device and a hot melt glue gun, so as to solve the problem of continuous manual addition of glue and the solidification of glue caused by too long injection time, thereby improving production efficiency and reducing production costs.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A hot melt adhesive automatic dispensing machine, comprising a base, a bracket fixed on the base, and a box fixed on the bracket, wherein the interior of the box is divided into a glue supply bin and a glue stick chute cavity by a vertical partition plate; the top wall of the glue supply bin and the top of the partition plate are both inclined, the side of the top wall of the glue supply bin close to the partition plate is lower than the side away from the partition plate, and the inclination direction of the top of the partition plate is the same as the inclination direction of the top wall of the glue supply bin; a glue supply device for providing glue sticks to the glue stick chute cavity is provided between the top wall of the glue supply bin and the partition plate;

[0007] The top wall of the glue stick slide chamber is provided with a glue feeding groove on one side near the dividing plate, and the bottom of the glue feeding groove is open and is fixedly provided with an arc slide groove arranged along the length direction of the glue feeding groove. The arc slide groove is inclined and extends to the glue outlet opened at the bottom of the side wall of the glue stick slide chamber; a support plate is fixedly provided below the glue outlet, and a mounting plate is fixedly provided at the bottom of the arc slide groove, and the other end of the mounting plate is fixedly connected to the upper surface of the support plate; the upper surface of the mounting plate is fixedly provided with a slide rail, a hot melt glue gun and a glue stick conveying device for conveying glue sticks on the slide rail, one end of the slide rail is connected to the arc slide groove, the hot melt glue gun is arranged at the other end of the slide rail, one end of the hot melt glue gun close to the slide rail is a feeding port for inserting glue sticks, and the other end is a nozzle, and a heating chamber is arranged inside the hot melt glue gun, and a temperature sensor and a heater are arranged in the heating chamber; a first infrared sensing probe is fixedly provided on the side wall of the glue feeding trough near one end of the glue outlet, and a shell for surrounding the glue stick conveying device is fixedly provided on the upper surface of the support plate, and a second infrared sensing probe is provided on the shell;

[0008] A PLC control box and a temperature controller are fixedly provided on the outer surface of the side wall of the box body, the PLC control box is provided with a control panel and a power supply, and the PLC control box has a built-in PLC controller; the control panel, the temperature controller, the glue supply device, the glue stick conveying device, the temperature sensor, the nozzle, the first infrared sensing probe and the second infrared sensing probe are all electrically connected to the PLC controller, and the temperature controller and the heater are electrically connected.

[0009] As a limitation, the glue supply device includes a feeding plate, a feeding port and a driving device;

[0010] The loading plate is arranged on a side of the partition plate located in the glue supply bin, and the loading plate is parallel to the partition plate. A loading port for accommodating the loading plate to pass through is formed between the side of the top wall of the glue supply bin close to the partition plate and the partition plate. After passing through the loading port of the top wall of the glue supply bin, the loading plate reciprocates in the glue supply bin through the driving device; the top of the loading plate is inclined, and the inclination direction of the top of the loading plate is the same as the inclination direction of the top wall of the glue supply bin, and the driving device is electrically connected to the PLC controller.

[0011] As a further limitation, the driving device includes a driving motor, a ball screw and a nut fixing seat. The driving motor is fixed on the inner surface of the bottom wall of the glue supply bin. The output shaft of the driving motor is fixedly connected to one end of the ball screw. A nut is provided on the outer surface of the ball screw. The nut is connected to the side wall of the loading plate through the nut fixing seat. The driving motor is electrically connected to the PLC controller.

[0012] As a further limitation, the inclination angles of the top of the loading plate and the top of the partition plate are the same as the inclination angle of the top wall of the glue supply bin.

[0013] As a second limitation, the glue stick conveying device includes two transmission mechanisms, which are respectively arranged on both sides of the slide rail, and the two transmission mechanisms each include a driving gear, a driven gear, a guide gear, a first bearing seat, a second bearing seat, a toothed belt and a synchronous motor, and the synchronous motor is electrically connected to the PLC controller;

[0014] The driven gear is arranged between the driving gear and the guide gear, the guide gear is arranged at one end close to the arc-shaped slide groove, the driving gear is arranged at one end close to the hot melt glue gun, the first bearing seat and the second bearing seat are fixedly arranged on the upper surface of the mounting plate, the synchronous motor is fixedly arranged on the lower surface of the mounting plate, the driven gear is rotatably connected to the first bearing seat through a rotating shaft, the guide gear is rotatably connected to the second bearing seat through a rotating shaft, the output shaft of the synchronous motor is fixedly connected to the driving gear after passing through the mounting plate, and the driving gear is connected to the driven gear and the guide gear through a toothed belt;

[0015] The distance between the two driving gears and the distance between the two driven gears are both equal to the diameter of the glue stick on the slide rail, and the distance between the two guide gears is greater than the diameter of the glue stick.

[0016] As a third limitation, the control panel is also equipped with a power switch button and an alarm indicator light.

[0017] As the utility model adopts the above technical solution, compared with the prior art, the technical progress achieved is:

[0018] (1) The utility model divides the box into a glue supply bin and a glue stick chute cavity, wherein a glue supply device for supplying glue sticks to the glue stick chute cavity is provided between the top wall of the glue supply bin and the partition plate, and the top wall of the glue supply bin and the top of the partition plate are both inclined. By inclining the top wall of the glue supply bin, a placement box for placing glue sticks can be formed between the top wall of the glue supply bin and the side wall of the glue supply bin. After the glue sticks in the placement box are sent to the partition plate by the glue supply device, since the partition plate is also inclined, the glue sticks can slide through the partition plate into the glue delivery groove of the glue stick chute cavity, and then the glue sticks are conveyed to the hot melt glue gun for heating and discharging glue through the arc-shaped chute, the slide rail and the glue stick conveying device;

[0019] (2) In the utility model, a first infrared sensing probe is fixedly provided on the side wall of the glue feeding groove near the glue outlet, and a second infrared sensing probe is provided on the outer shell on the upper surface of the support plate. The first infrared sensing probe can detect whether there is a glue stick in the glue feeding groove, and transmit the information to the PLC controller, so that the PLC controller controls the glue supply device to supply glue. By setting the second infrared sensing probe, it can be detected whether there is a shoe pattern under the nozzle of the hot melt glue gun. If there is a shoe pattern, the information is transmitted to the PLC controller, so that the PLC controller controls the nozzle of the hot melt glue gun to open and discharge glue;

[0020] (3) The glue supply device of the utility model comprises a feeding plate, a feeding port and a driving device, wherein the top of the feeding plate is inclined, and after the feeding plate sends the glue stick to the partition plate, the glue stick can slide through the partition plate into the glue feeding groove of the glue stick chute cavity;

[0021] (4) The glue stick conveying device of the utility model includes two transmission mechanisms. The two guide gears in the transmission mechanism can guide the glue stick in the arc-shaped slide groove to the slide rail. The two driving gears and two driven gears can use the extrusion force and friction force to transmit the glue stick on the slide rail to the feed port of the hot melt glue gun for heating and discharge.

[0022] In summary, the utility model is easy to use, can realize automatic feeding of glue sticks, and can heat the glue sticks to automatically discharge glue, thereby reducing processing costs, improving production efficiency, and increasing economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a schematic structural diagram of an embodiment of the utility model;

[0024] Figure 2 The figure shows the structure diagram of the feeding plate, the partition plate and the driving device in the embodiment of the utility model;

[0025] Figure 3 The figure shows a schematic diagram of the structure of the feeding plate, the partition plate and the driving device after use in the embodiment of the utility model;

[0026] Figure 4 The figure shows the structure of the arc-shaped slide groove, the mounting plate, the slide rail, the hot melt glue gun, and the glue stick conveying device in the embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the arc-shaped slide groove, the mounting plate, the slide rail, the hot melt glue gun, and the glue stick conveying device in another angle in the embodiment of the utility model;

[0028] Figure 6 Shown is a schematic diagram of the external structure of an embodiment of the utility model;

[0029] Figure 7 Shown is a schematic diagram of the external structure of another angle of the embodiment of the utility model;

[0030] In the figure: 1. base; 2. bracket; 3. box; 4. partition plate; 5. glue supply bin; 6. glue stick slide cavity; 7. glue supply bin top wall; 8. loading plate; 9. driving motor; 10. ball screw; 11. nut fixing seat; 12. glue feeding groove; 13. arc slide; 14. glue outlet; 15. support plate; 16. mounting plate; 17. slide rail; 18. hot melt glue gun; 19. nozzle; 20. first infrared sensor probe; 21. second infrared sensor probe; 22. driving gear; 23. driven gear; 24. guide gear; 25. first bearing seat; 26. second bearing seat; 27. toothed belt; 28. synchronous motor; 29. ​​temperature controller; 30. power switch button; 31. alarm indicator light; 32. control panel. DETAILED DESCRIPTION

[0031] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0032] Embodiment A hot melt adhesive automatic dispensing machine

[0033] like Figure 1 As shown, this embodiment is a hot melt adhesive automatic dispensing machine, comprising a base 1, a bracket 2 fixed on the base 1, and a box 3 fixed on the bracket 2. The interior of the box 3 is divided into a glue supply bin 5 and a glue stick chute cavity 6 by a vertical partition plate 4.

[0034] Among them, the top wall 7 of the glue supply bin and the top of the partition plate 4 are both inclined, and the side of the top wall 7 of the glue supply bin close to the partition plate 4 is lower than the side of the top wall 7 of the glue supply bin away from the partition plate 4, and the inclination direction of the top of the partition plate 4 is the same as the inclination direction of the top wall 7 of the glue supply bin and the same as the inclination angle of the top wall 7 of the glue supply bin.

[0035] like Figure 2 As shown, a glue supply device for providing glue sticks to the glue stick chute cavity 6 is provided between the top wall 7 of the glue supply bin and the partition plate 4; the glue supply device includes a loading plate 8, a loading port and a driving device; the loading plate 8 is provided on one side of the partition plate 4 located in the glue supply bin 5, and the loading plate 8 is arranged parallel to the partition plate 4. A loading port for accommodating the loading plate 8 passing through is formed between the side of the top wall 7 of the glue supply bin close to the partition plate 4 and the partition plate 4, and the loading plate 8 passes through the loading port of the top wall 7 of the glue supply bin and reciprocates in the glue supply bin 5 through the driving device; the top of the loading plate 8 is also inclined, and the inclination direction of the top of the loading plate 8 is the same as the inclination direction of the top wall 7 of the glue supply bin and the same as the inclination angle of the top wall 7 of the glue supply bin, and the inclination angle is preferably such that stirring, rolling and sliding can be achieved.

[0036] The driving device includes a driving motor 9, a ball screw 10 and a nut fixing seat 11. The driving motor 9 is fixed on the inner surface of the bottom wall of the glue supply bin. The output shaft of the driving motor 9 is fixedly connected to one end of the ball screw 10. A nut is provided on the outer surface of the ball screw 10, and the nut is connected to the side wall of the loading plate 8 through the nut fixing seat 11.

[0037] In this embodiment, the height of the partition plate 4 is higher than the height of the side of the top wall 7 of the glue supply bin close to the partition plate 4 and the height of the loading plate 8. When the loading plate 8 is not in motion, it forms a smoothly transitioned inclined surface with the side of the top wall 7 of the glue supply bin close to the partition plate 4. Since the top wall 7 of the glue supply bin is inclined, a placement box with an inclined angle for placing glue sticks is formed between the top wall 7 of the glue supply bin and the side wall of the glue supply bin in contact with it. Since the glue sticks are cylindrical solid glue sticks, after the glue sticks are arranged and placed on the top wall 7 of the glue supply bin, the glue sticks will roll along the top wall 7 of the glue supply bin toward the side of the loading plate 8. When the glue sticks roll to the top of the loading plate 8, the driving motor 9 is started, and the rotation of the ball screw 10 will drive the loading plate 8 to move upward. When the loading plate 8 moves to the height of the partition plate 4, the glue sticks will slide down along the inclined direction of the loading plate 8, thereby realizing automatic loading of the glue supply bin 5. Figure 3 As shown, Figure 3 The circle on the middle feeding plate 8 represents a glue stick.

[0038] In this embodiment, a storage box for placing glue sticks can also be provided on the top wall 7 of the glue supply bin, and the top of the storage box and one side close to the loading plate 8 are open to enable placing glue sticks in the storage box and rolling the glue sticks onto the loading plate 8.

[0039] like Figure 1 and Figure 4 , Figure 5 As shown, a glue feeding groove 12 is provided on the top wall of the glue stick slide cavity 6 near the partition plate 4. The bottom of the glue feeding groove 12 is open and fixed with a glue feeding groove 12 along the length direction ( Figure 1An arc chute 13 is provided (in the direction of the arrow in the middle), and the arc chute 13 is inclined and extends to the glue outlet 14 opened at the bottom of the side wall of the glue stick chute cavity 6; a support plate 15 is fixedly provided below the glue outlet 14, and a mounting plate 16 is fixedly provided at the bottom of the arc chute 13. The mounting plate 16 is inclined like the arc chute 13, and the other end of the mounting plate 16 is fixedly connected to the upper surface of the support plate 15; a slide rail 17, a hot melt glue gun 18 and a glue stick conveying device for conveying glue sticks on the slide rail 17 are fixedly provided on the upper surface of the mounting plate 16, and the slide rail 17, the hot melt glue gun 18 and the glue stick conveying device are all inclined The slide rail 17 is connected to the arc-shaped slide groove 13 at one end, and the hot melt glue gun 18 is arranged at the other end of the slide rail 17 through a mounting seat. The end of the hot melt glue gun 18 close to the slide rail 17 is a feed port for inserting a glue stick, and the other end is a nozzle 19. A heating chamber is arranged inside the hot melt glue gun 18, and a temperature sensor and a heater are arranged in the heating chamber. The electric heater is an electric heating plate; a first infrared sensing probe 20 is fixedly arranged on the side wall of the glue feeding groove 12 close to the glue outlet 14, and a shell for surrounding the glue stick conveying device is fixedly arranged on the upper surface of the support plate 15, and a second infrared sensing probe 21 is arranged on the shell, such as Figure 6 and Figure 7 shown.

[0040] The outer shell fixed on the upper surface of the support plate 15 and used to surround the glue stick conveying device is composed of two vertical plates and a cover plate. The support plate 15 and the outer shell can surround the glue outlet 14 and leave an opening for the hot melt glue gun 18 to pass through.

[0041] The glue stick conveying device includes two transmission mechanisms, which are respectively arranged on both sides of the slide rail 17. The two transmission mechanisms each include a driving gear 22, a driven gear 23, a guide gear 24, a first bearing seat 25, a second bearing seat 26, a toothed belt 27 and a synchronous motor 28. Among them, the driven gear 23 is arranged between the driving gear 22 and the guide gear 24, the guide gear 24 is arranged at one end close to the arc-shaped slide groove 13, the driving gear 22 is arranged at one end close to the hot melt glue gun 18, the first bearing seat 25 and the second bearing seat 26 are fixedly arranged on the upper surface of the mounting plate 16, the synchronous motor 28 is fixedly arranged on the lower surface of the mounting plate 16, the driven gear 23 is rotatably connected to the first bearing seat 25 through a rotating shaft, the guide gear 24 is rotatably connected to the second bearing seat 26 through a rotating shaft, the output shaft of the synchronous motor 28 passes through the mounting plate 16 and is fixedly connected to the driving gear 22, the driving gear 22 is connected to the driven gear 23 and the guide gear 24 through a toothed belt 27, the distance between the two driving gears 22 of the two transmission mechanisms and the distance between the two driven gears 23 are equal to the diameter of the glue stick on the slide rail 17, and the distance between the two guide gears 24 is greater than the diameter of the glue stick, such as Figure 5 As shown, Figure 5 For ease of understanding, the toothed belt 27 on one side is not shown.

[0042] In this embodiment, the arcuate chute 13 and the slide rail 17 have a smooth transition, which facilitates the glue stick to slide from the arcuate chute 13 to the slide rail 17. The heights of the driving gear 22, the driven gear 23, and the guide gear 24 are higher than the heights of both sides of the slide rail 17, so that the guide gear 24 can guide the glue stick on the slide rail 17, and the driving gear 22 and the driven gear 23 can rub and squeeze the glue stick on the slide rail 17. Figure 4 The cylinder in the figure represents the glue stick.

[0043] Since the distance between the two driving gears 22 of the two transmission mechanisms and the distance between the two driven gears 23 are equal to the diameter of the glue stick on the slide rail 17, and the distance between the two guide gears 24 is greater than the diameter of the glue stick, when the glue stick in the arc-shaped slide groove 13 slides down to the slide rail 17, the guide gear 24 can be used to guide the glue stick to the slide rail 17, and the toothed belt 27 outside the driving gear 22 and the driven gear 23 can be used to further rub and squeeze the glue stick, and squeeze the glue stick to the feed port of the hot melt glue gun 18, and heat it in the hot melt glue gun 18.

[0044] In this embodiment, a PLC control box and a temperature controller 29 are fixedly provided on the outer surface of the side wall of the box body 3, a control panel 32 and a power supply are provided on the PLC control box, a PLC controller is built into the PLC control box, and a power switch button 30 and an alarm indicator light 31 are installed on the control panel 32; the control panel 32, the temperature controller 29, the drive motor 9, the synchronous motor 28, the temperature sensor, the nozzle 19, the first infrared sensing probe 20 and the second infrared sensing probe 21 are all electrically connected to the PLC controller, and the temperature controller 29 and the heater are electrically connected.

[0045] The usage process of this embodiment is:

[0046] Arrange the glue sticks on the top wall 7 of the glue supply bin. Figure 1 The cylinder on the top wall 7 of the middle glue supply bin represents the glue stick. Turn on the power, set the heating temperature through the temperature controller 29, such as 183°, and control the heater in the hot melt glue gun 18 to heat. The temperature sensor in the hot melt glue gun 18 sends the detected temperature information to the PLC controller. When the temperature reaches 183°, the PLC controller controls the temperature controller 29 to stop heating the heater.

[0047] When the heating temperature of the hot melt glue gun 18 reaches the specified temperature, the PLC controller controls the drive motor 9 and the synchronous motor 28 to turn on. The drive motor 9 drives the ball screw 10 to rotate and drives the loading plate 8 to move upward. When the loading plate 8 moves to the height of the partition plate 4, the glue stick on the loading plate 8 slides along the inclined direction of the partition plate 4 to the arc-shaped slide groove 13 at the bottom of the glue feeding groove 12, completing the automatic loading of the glue stick, and then the PLC controller controls the drive motor 9 to reset.

[0048] When the glue stick slides into the arc-shaped slide groove 13, due to the inclined setting of the arc-shaped slide groove 13 and the slight vibration force after the synchronous motor 28 is started, the glue stick will slide in the direction of the slide rail 17. At this time, the synchronous motor 28 drives the driving gear 22, the driven gear 23, the guide gear 24, and the toothed belt 27 to rotate. When the glue stick slides to one end of the slide rail 17, the guide gear 24 can prevent the glue stick from slipping and make the glue stick slide onto the slide rail 17. The driven gear 23, the driving gear 22 and the toothed belt 27 will rub and squeeze the glue stick to transmit it to the hot melt glue gun 18. In the feed port, heating is performed in the hot melt glue gun 18. When the second infrared sensing probe 21 detects that there is a shoe pattern, such as a sole, under the nozzle 19 of the hot melt glue gun 18, a signal of the presence of the sole is transmitted to the PLC controller, so that the PLC controller controls the nozzle 19 of the hot melt glue gun 18 to open for glue discharge, so that the glue is sprayed onto the sole. When the second infrared sensing probe 21 does not detect that there is a shoe pattern under the nozzle 19 of the hot melt glue gun 18, a signal of the absence of the sole is transmitted to the PLC controller, and the PLC controller controls the nozzle 19 of the hot melt glue gun 18 to close.

[0049] When the first infrared sensor probe 20 detects that there is no glue stick in the glue feeding groove 12, the signal is transmitted to the PLC controller, and the PLC controller controls the drive motor 9 to start and repeat the feeding operation.

[0050] When the glue sticks on the top wall 7 of the glue supply bin are used up, the PLC controller controls the drive motor 9 to start feeding, and the first infrared sensing probe 20 continues to send a signal that there is no glue stick in the glue feeding groove 12, then the PLC controller controls the alarm indicator light 31 to flash, reminding the staff to place glue sticks on the top wall 7 of the glue supply bin.

[0051] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hot melt adhesive automatic dispensing machine, comprising a base, a bracket fixed above the base, and a box fixed above the bracket, characterized in that: The interior of the box is divided into a glue supply bin and a glue stick chute cavity by a vertical partition plate; the top wall of the glue supply bin and the top of the partition plate are both inclined, the side of the top wall of the glue supply bin close to the partition plate is lower than the side away from the partition plate, and the inclination direction of the top of the partition plate is the same as the inclination direction of the top wall of the glue supply bin; a glue supply device for providing glue sticks to the glue stick chute cavity is provided between the top wall of the glue supply bin and the partition plate; The top wall of the glue stick slide chamber is provided with a glue feeding groove on one side near the dividing plate, and the bottom of the glue feeding groove is open and is fixedly provided with an arc slide groove arranged along the length direction of the glue feeding groove. The arc slide groove is inclined and extends to the glue outlet opened at the bottom of the side wall of the glue stick slide chamber; a support plate is fixedly provided below the glue outlet, and a mounting plate is fixedly provided at the bottom of the arc slide groove, and the other end of the mounting plate is fixedly connected to the upper surface of the support plate; the upper surface of the mounting plate is fixedly provided with a slide rail, a hot melt glue gun and a glue stick conveying device for conveying glue sticks on the slide rail, one end of the slide rail is connected to the arc slide groove, the hot melt glue gun is arranged at the other end of the slide rail, one end of the hot melt glue gun close to the slide rail is a feeding port for inserting glue sticks, and the other end is a nozzle, and a heating chamber is arranged inside the hot melt glue gun, and a temperature sensor and a heater are arranged in the heating chamber; a first infrared sensing probe is fixedly provided on the side wall of the glue feeding trough near one end of the glue outlet, and a shell for surrounding the glue stick conveying device is fixedly provided on the upper surface of the support plate, and a second infrared sensing probe is provided on the shell; A PLC control box and a temperature controller are fixedly provided on the outer surface of the side wall of the box body, the PLC control box is provided with a control panel and a power supply, and the PLC control box has a built-in PLC controller; the control panel, the temperature controller, the glue supply device, the glue stick conveying device, the temperature sensor, the nozzle, the first infrared sensing probe and the second infrared sensing probe are all electrically connected to the PLC controller, and the temperature controller and the heater are electrically connected.

2. The hot melt adhesive automatic dispensing machine according to claim 1, characterized in that: The glue supply device includes a feeding plate, a feeding port and a driving device; The loading plate is arranged on a side of the partition plate located in the glue supply bin, and the loading plate is parallel to the partition plate. A loading port for accommodating the loading plate to pass through is formed between the side of the top wall of the glue supply bin close to the partition plate and the partition plate. After passing through the loading port of the top wall of the glue supply bin, the loading plate reciprocates in the glue supply bin through the driving device; the top of the loading plate is inclined, and the inclination direction of the top of the loading plate is the same as the inclination direction of the top wall of the glue supply bin, and the driving device is electrically connected to the PLC controller.

3. The hot melt adhesive automatic dispensing machine according to claim 2, characterized in that: The driving device includes a driving motor, a ball screw and a nut fixing seat. The driving motor is fixed on the inner surface of the bottom wall of the glue supply bin. The output shaft of the driving motor is fixedly connected to one end of the ball screw. A nut is provided on the outer surface of the ball screw. The nut is connected to the side wall of the loading plate through the nut fixing seat. The driving motor is electrically connected to the PLC controller.

4. The automatic hot melt adhesive dispensing machine according to claim 3, characterized in that: The inclination angles of the top of the feeding plate and the top of the partition plate are the same as the inclination angle of the top wall of the glue supply bin.

5. The hot melt adhesive automatic dispensing machine according to claim 1, characterized in that: The glue stick conveying device includes two transmission mechanisms, which are respectively arranged on both sides of the slide rail, and the two transmission mechanisms each include a driving gear, a driven gear, a guide gear, a first bearing seat, a second bearing seat, a toothed belt and a synchronous motor, and the synchronous motor is electrically connected to the PLC controller; The driven gear is arranged between the driving gear and the guide gear, the guide gear is arranged at one end close to the arc-shaped slide groove, the driving gear is arranged at one end close to the hot melt glue gun, the first bearing seat and the second bearing seat are fixedly arranged on the upper surface of the mounting plate, the synchronous motor is fixedly arranged on the lower surface of the mounting plate, the driven gear is rotatably connected to the first bearing seat through a rotating shaft, the guide gear is rotatably connected to the second bearing seat through a rotating shaft, the output shaft of the synchronous motor is fixedly connected to the driving gear after passing through the mounting plate, and the driving gear is connected to the driven gear and the guide gear through a toothed belt; The distance between the two driving gears and the distance between the two driven gears are both equal to the diameter of the glue stick on the slide rail, and the distance between the two guide gears is greater than the diameter of the glue stick.

6. The hot melt adhesive automatic dispensing machine according to any one of claims 1 to 5, characterized in that: The control panel is also provided with a power switch button and an alarm indicator light.

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