Automatic glue dispensing device for mobile phone back plate

Abstract

The invention discloses an automatic dispensing device for a mobile phone backboard, and relates to the technical field of dispensing, the automatic dispensing device comprises a base, a feeding assembly line and a discharging assembly line, a dispensing assembly is installed on a dispensing moving frame, a glue pipe connected with the dispensing assembly is connected with a defoaming assembly with a pump, and a glue pipe connected with an outlet of a glue box is connected into the defoaming assembly through the pump; the glue can be centrifuged without manually taking down the glue tank from the supporting seat, the glue tank is in an inclined state during rotation, the effect is the same as that generated by existing centrifugal defoaming equipment, and the glue tank can be rotated to a vertical state after centrifugation is finished, so that discharge of the glue in the glue tank is accelerated, glue solidification is avoided, and the purpose of removing bubbles in the glue is achieved. The defoamed glue is discharged into the glue pipe joint under the suction action of the pump and then is discharged from the dispensing nozzle, so that the defoamed glue can be fed into the dispensing nozzle without taking down the glue, and the next batch of glue can be fed into the glue tank through the feeding assembly after the glue in the glue tank is completely discharged.

Description

Technical Field

[0001] The invention relates to the technical field of glue dispensing, and in particular to an automatic glue dispensing device for a mobile phone back panel. Background Art

[0002] Glue dispensing machine is also called glue coating machine, glue dripping machine or glue filling machine, etc. It is specially used to control fluid. It is an automated machine that drips and applies fluid on the surface or inside of the product. It can realize three-dimensional and four-dimensional path dispensing, and has the advantages of precise positioning, precise glue drawing and no drawing. Its working principle is as follows: the glue liquid is stored in the glue storage chamber formed by the glue cylinder and the piston. The glue storage chamber is connected to the glue dispensing nozzle through the feed pipe. A valve is set at the connection between the glue dispensing nozzle and the feed pipe. The piston is pushed to move by air pressure or a screw transmission mechanism. When a certain pressure is reached, the valve opens, and the glue liquid flows from the glue storage chamber through the feed pipe and then flows out of the glue dispensing nozzle, and the glue dispensing operation can be carried out.

[0003] Some glue ingredients may produce gas during the mixing or curing process. Common problems in dispensing are the viscosity and bubbles of the glue when the valve is dispensing. Some glues contain solvents, which may produce bubbles when the solvent evaporates. When using, the bubbles in the glue need to be removed first. The existing methods of removing bubbles in the glue use centrifugal or vacuum negative pressure placement. The centrifugal equipment used is a vacuum degassing machine. Each time degassing, the glue tank needs to be placed in the vacuum degassing machine, and the glue tank is taken out after degassing. As a result, the degassed glue cannot be directly delivered to the dispensing nozzle. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic glue dispensing device for a mobile phone back panel to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic glue dispensing device for a mobile phone back panel, comprising a base, a material incoming assembly line and a material unloading assembly line, the base is equipped with a material incoming assembly line, a material unloading assembly line and a glue dispensing mobile frame, a glue dispensing component is installed on the glue dispensing mobile frame, a rubber hose connected to the glue dispensing component is connected to a defoaming component with a pump, and a rubber hose connected to a glue box outlet is connected to the defoaming component through a pump;

[0006] The defoaming assembly comprises a bracket fixed on a base, a defoaming shell is mounted on the bracket, a support bracket is fixed on the bottom wall of the defoaming shell, a fixed rod is fixed on the support bracket, a rotating sleeve is sleeved on the fixed rod, the top ends of the fixed rod and the rotating sleeve are inserted into the defoaming shell, the bottom channel of the fixed rod is connected to the inner cavity of the defoaming shell through a slot hole radially opened on the rotating sleeve, and the rubber hose sleeved on the bottom of the fixed rod is connected to the dispensing assembly through a pump;

[0007] The outer wall of the rotating sleeve located in the defoaming shell is provided with two sets of rotating components and a centrifugal support component. The glue tank provided on the rotating component is connected with the feeding component through a hose. The glue pipe inserted in the feeding component passes through the defoaming shell and is connected with the pump of the glue box.

[0008] An elastic component is installed on the top end of the fixed rod located inside the defoaming shell, and a transmission component connected to the glue tank is connected to the elastic component.

[0009] Furthermore, the rotating assembly includes a support seat axially connected to the rotating sleeve, a hollow arc plate is provided on the port of the support seat, and the inner cavity of the support seat is connected to the inner cavity of the arc plate;

[0010] The transmission component includes two gears meshing with each other, the two gears are fixed to the first shaft and the second shaft respectively, the first shaft and the second shaft rotate around the support seat, the top end of the first shaft is fixed to the glue tank, the bottom end of the first shaft is connected to the inner cavity of the support seat, the glue tank is connected to the inner cavity of the arc plate through the first shaft and the support seat; a turntable is fixed to the top of the two shafts.

[0011] Furthermore, the elastic component includes a baffle fixed on the top of the fixed rod, the fixed rod is also sleeved with an arc seat that slides up and down, a spring sleeved on the fixed rod is fixed between the arc seat and the baffle, and the arc surface of the arc seat contacts the edge of the turntable.

[0012] Furthermore, the centrifugal support assembly includes a sleeve arranged radially along the rotating sleeve, one end of the push rod inserted in the sleeve is movably connected to both ends of the push wheel through a U-shaped frame, and a spring sleeved on the push rod is fixed between the U-shaped frame and the sleeve.

[0013] Furthermore, the feed assembly includes a feed pipe connected to the hose of the glue tank, the two ends of the middle part of the feed pipe are fixed on the rotating sleeve through side rods, the feed pipe rotates around the glue pipe, and the rotating sleeve is connected to the motor on the support frame through a belt.

[0014] Furthermore, the dispensing assembly includes a dispensing nozzle, a nozzle valve and a hose joint, the hose connected to the hose joint passes through the drag chain on the top of the dispensing mobile frame and is connected to the hose of the fixed rod, wherein the nozzle valve is installed on the dispensing mobile frame, and the dispensing nozzle is assembled at the bottom end of the nozzle valve.

[0015] Technical effects and advantages of the present invention:

[0016] Glue centrifugation can be achieved without manually removing the glue tank from the support seat. Centrifugation allows the glue to maintain a high activity. The glue tank is in an inclined state during rotation, which has the same effect as the existing centrifugal defoaming equipment. After the centrifugation, the glue tank can be rotated to a vertical state, thereby accelerating the discharge of glue in the glue tank and avoiding glue solidification, thereby removing the bubbles in the glue. Under the suction of the pump, the glue is discharged into the hose joint and then discharged from the glue dispensing nozzle. The degassed glue can be fed into the glue dispensing nozzle without removing the glue, and after the glue in the glue tank is discharged, the next batch of glue can be introduced into the glue tank through the feeding assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall stereogram of the present invention;

[0018] Figure 2 It is a connection diagram of the glue dispensing component, the defoaming component and the glue box of the present invention;

[0019] Figure 3 It is a top view of the internal glue tank of the defoaming shell of the present invention without defoaming;

[0020] Figure 4 It is a bottom view of the internal glue tank of the defoaming shell of the present invention without defoaming;

[0021] Figure 5 It is a top view of the degassing of the glue tank inside the degassing shell of the present invention;

[0022] Figure 6 It is a cross-sectional view of the fixed rod, the rotating sleeve and the defoaming shell of the present invention;

[0023] Figure 7 It is a partial structural diagram of the present invention;

[0024] Figure 8 It is a conductive diagram of the support seat and the glue tank of the present invention;

[0025] Fig. 9 is a cross-sectional view of the glue dispensing assembly of the present invention;

[0026] Fig.10 It is an exploded view of the dispensing assembly of the present invention.

[0027] In the figure:

[0028] 1. Base; 2. Rotating assembly; 21. Glue tank; 22. Transmission parts; 221. One axis; 222. Two axes; 223. Turntable; 23. Support seat; 3. Centrifugal support assembly; 31. Push rod; 32. Push wheel; 4. Arc seat; 5. Feed pipe; 6. Glue box; 7. Glue dispensing assembly; 71. Glue dispensing nozzle; 72. Nozzle valve; 73. Strike pin; 731. Stirring rod; 74. Strike pin seat; 75. Piston; 76. Hose joint; 77. Sealing block; 78. Sealing inner ring; 791. Positioning ring; 792. Limiting plate; 8. Defoaming assembly; 81. Defoaming shell; 82. Fixed rod; 83. Rotating sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] Reference Figure 1-Figure 8 , which is the first embodiment of the present invention, provides an automatic glue dispensing device for a mobile phone back panel, including a base 1, a material incoming assembly line and a material unloading assembly line, the base 1 is equipped with a material incoming assembly line, a material unloading assembly line and a glue dispensing mobile frame, a glue dispensing mobile frame is installed with a glue dispensing component 7, a rubber hose connected to the glue dispensing component 7 is connected to a defoaming component 8 with a pump, and a rubber hose connected to the outlet of a glue box 6 is connected to the defoaming component 8 through a pump;

[0032] When dispensing glue, the defoaming component 8 starts to centrifuge the glue to eliminate bubbles in the glue. The incoming material assembly line is used to convey the mobile phone back panel to the existing mobile phone back panel fixture. After the glue coating is completed, the robot arm clamps the mobile phone back panel and transfers it to the unloading assembly line to achieve one-time automated dispensing.

[0033] The defoaming assembly 8 includes a bracket fixed on the base 1, a defoaming shell 81 is installed on the bracket, a support bracket is fixed on the bottom wall of the defoaming shell 81, a fixed rod 82 is fixed on the support bracket, a rotating sleeve 83 is sleeved on the fixed rod 82, the top ends of the fixed rod 82 and the rotating sleeve 83 penetrate into the defoaming shell 81, the bottom channel of the fixed rod 82 is connected to the inner cavity of the defoaming shell 81 through the slots radially opened on the rotating sleeve 83, and the rubber hose sleeved on the bottom of the fixed rod 82 is connected to the dispensing assembly 7 through a pump;

[0034] The fixed rod 82 cannot rotate because it is fixed by the support bracket, but the rotating sleeve 83 can rotate around the fixed rod 82. Both ends of the fixed rod 82 pass through the rotating sleeve 83. The bottom of the defoaming shell 81 is funnel-shaped, and the rotating sleeve 83 and the fixed rod 82 pass through the lowest point of the bottom of the defoaming shell 81. Since the slot hole opened on the rotating sleeve 83 is located at the lowest point of the funnel, the glue after centrifugation of the defoaming shell 81 flows into the lowest point of the funnel under the action of gravity and slowly flows into the fixed rod 82 through the slot hole, and is discharged into the glue dispensing component 7 under the suction of the pump.

[0035] The feed assembly includes a feed pipe 5 connected to the hose of the glue tank 21. The two ends of the middle part of the feed pipe 5 are fixed on the rotating sleeve 83 through side rods. The feed pipe 5 rotates around the glue pipe, and the rotating sleeve 83 is connected to the motor on the support frame through a belt.

[0036] The side rod is used to support the feed pipe 5, and can also drive the rotating sleeve 83 and the feed pipe 5 to rotate synchronously. The glue pipe is made of metal material with high strength and adopts a three-way structure. One pipe opening of the glue pipe and the feed pipe 5 are sealed and connected by a sealing ring to prevent glue from flowing out. The glue in the glue box 6 is pumped into the glue pipe by a pump, and the glue flows into the glue tank 21 along the remaining two pipe openings through the hose to complete the feeding of the glue without affecting the rotation of the feed pipe 5.

[0037] The rotating sleeve 83 is located on the outer wall of the defoaming shell 81 and is provided with two sets of rotating components 2 and a centrifugal support component 3. The glue tank 21 provided on the rotating component 2 is connected to the feeding component through a hose. The glue pipe inserted in the feeding component passes through the defoaming shell 81 and is connected to the pump of the glue box 6.

[0038] An elastic component is installed on the top of the fixed rod 82 located inside the defoaming shell 81, and the transmission component 22 connected to the glue tank 21 is connected to the elastic component.

[0039] The rotating assembly 2 includes a support seat 23 axially connected to the rotating sleeve 83, a hollow arc plate is provided on the port of the support seat 23, and the inner cavity of the support seat 23 is connected to the inner cavity of the arc plate;

[0040] The transmission component 22 includes two gears meshing with each other, and the two gears are fixed to the first shaft 221 and the second shaft 222 respectively. The first shaft 221 and the second shaft 222 rotate around the support seat 23. The top end of the first shaft 221 is fixed to the glue pot 21, and the bottom end of the first shaft 221 is connected to the inner cavity of the support seat 23. The glue pot 21 is connected to the inner cavity of the arc plate through the first shaft 221 and the support seat 23; a turntable 223 is fixed to the top of the second shaft 222.

[0041] The motor drives the rotating sleeve 83 to rotate, and since the fixed rod 82 is in a fixed state, the rotating sleeve 83 can rotate around the fixed rod 82, wherein the defoaming shell 81 is an existing tank body that can be heated, and the rotating sleeve 83 and the fixed rod 82 can also be heated by heat conduction to prevent the glue in the defoaming shell 81, the rotating sleeve 83 and the fixed rod 82 from solidifying;

[0042] The elastic component includes a baffle fixed on the top of the fixed rod 82, and the fixed rod 82 is also covered with an arc seat 4 that slides up and down, wherein a raised guide block is provided on the fixed rod 82, and a slide groove for inserting the guide block is opened on the arc seat 4. Through the setting of the guide block and the slide groove, the arc seat 4 can only move up and down along the fixed rod 82 but cannot rotate. A spring covered on the fixed rod 82 is fixed between the arc seat 4 and the baffle, and the arc surface of the arc seat 4 contacts the edge of the turntable 223.

[0043] The spring disposed on the fixed rod 82 is used to keep the arc seat 4 and the rotating disk 223 in close contact at all times;

[0044] The centrifugal support assembly 3 includes a sleeve radially arranged along the rotating sleeve 83. One end of the push rod 31 inserted into the sleeve is movably connected to both ends of the push wheel 32 through a U-shaped frame. A spring sleeved on the push rod 31 is fixed between the U-shaped frame and the sleeve.

[0045] The rotation of the rotating sleeve 83 drives the rotating component 2 and the centrifugal support component 3 to rotate synchronously, and the rotating component 2 and the centrifugal support component 3 will generate centrifugal force when rotating. The push rod 31 will slowly extend from the sleeve in the centrifugal state, and the elastic force of the spring is slightly smaller than the weight of the glue tank 21 and the transmission component 22. Therefore, when the rotating sleeve 83 rotates, the centrifugal force generated by the push rod 31, the push wheel 32 and the spring is greater than the weight of the glue tank 21 and the transmission component 22. The push wheel 32 extends from the sleeve and slowly pushes the arc plate to move, thereby realizing the support seat 23 to rotate upward around the rotating sleeve 83, so as to realize the rotation of the glue tank 21 from a vertical state to an inclined state.

[0046] After the rotating sleeve 83 stops rotating, the centrifugal force gradually decreases, the weight of the glue tank 21 and the transmission component 22 is greater than the elastic force of the spring on the sleeve, the push wheel 32 slowly retracts into the sleeve, and the spring of the sleeve is also slowly compressed.

[0047] The glue extracted by the pump flows into the glue tank 21 through the glue pipe and the feed pipe 5, and the solenoid valve arranged at the bottom of the glue tank 21 is in a closed state. The glue is stored in the glue tank 21, and the rotating sleeve 83 is driven by the motor to rotate around the fixed rod 82. During the process of the rotating sleeve 83 continuously accelerating the rotation, the turntable 223 rotates around the arc seat 4. Since the arc seat 4 cannot rotate, the turntable 223 and the arc seat 4 are always closely fitted under the push of the spring. The turntable 223 rotates under the action of friction, thereby realizing the rotation of the glue tank 21 through the gear, the first shaft 221 and the second shaft 222. As the rotation speed of the glue tank 21 slowly increases, the push wheel 32 moves along the arc surface of the arc plate to push the support seat 23 to slowly tilt upward. The push rod 31 extends the longest distance from the sleeve, and the spring on the push rod 31 is still in a compressed state, and the push wheel 32 moves along the curved surface of the curved plate to the vertical plane until the glue tank 2 is in the maximum tilted state, and the turntable 223 slowly pushes the curved seat 4 to rise to compress the spring on the fixed rod 82 until the spring is compressed to the maximum angle and stops, thereby completing the revolution and rotation of the glue tank 21. The glue tank 21 is in a tilted state during rotation, which can ensure that the glue is mixed more evenly. At the same time, after the stirring is completed, the glue tank 21 stops rotating and rotates in the opposite direction to a vertical state. At this time, the valve is opened, and the glue in the glue tank 21 is discharged from the opening of the curved plate through the inner cavity of the support seat 23 and falls into the defoaming shell 81.

[0048] The glue tank 21 realizes revolution and rotation. The interaction between rotation and revolution generates eddy current and up-and-down convection, and pushes out bubbles from the material, so that bubbles will not be mixed in during stirring and dispersing.

[0049] Through the above structure, the glue can be centrifuged without manually removing the glue tank 21 from the support seat 23, thereby achieving the purpose of removing bubbles in the glue, and the glue can maintain a high activity through centrifugation to avoid glue solidification, and through the arrangement of the rotating component 2 and the centrifugal support component 3, the glue tank 21 can be in an inclined state during rotation, which is the same as the effect produced by the existing centrifugal defoaming equipment. After the centrifugation is completed, the glue tank 21 can be rotated to a vertical state, thereby accelerating the discharge of glue in the glue tank 21. In addition, the glue tank 21 adopts a vertical bottom funnel structure, which can accommodate more glue under the same volume of the glue tank 21 compared with the fixed position inclined structure.

[0050] After the centrifugation is finished, the motor stops working, the gravity of the glue tank 21 is greater than the elastic force of the spring on the U-shaped frame, the support seat 23 slowly descends, and at the same time, the U-shaped frame connected to the push wheel 32 slowly retracts into the sleeve, and the spring connected to the baffle slowly rebounds to push the arc seat 4 slowly downward along the fixed rod 82, the spring on the fixed rod 82 slowly rebounds, and the spring on the U-shaped frame slowly compresses, so that the glue tank 21 is adjusted to a vertical position, and the valve is opened at this time, and the glue in the glue tank 21 is discharged from the opening of the arc plate through the inner cavity of the support seat 23 and falls into the defoaming shell 8 1 is on the bottom of the funnel shape, and the slot opened on the rotating sleeve 83 is located at the lowest point of the funnel shape, so the glue after centrifugation of the defoaming shell 81 flows into the lowest point of the funnel shape under the action of gravity and slowly flows into the fixed rod 82 through the slot, and is discharged into the hose joint 76 under the suction of the pump, and then discharged from the glue dispensing nozzle 71, so there is no need to remove the glue tank 21, and the defoamed glue can be sent to the glue dispensing nozzle 71, and after the glue in the glue tank 21 is discharged, the next batch of glue can be passed into the glue tank 21 through the feeding assembly to achieve the purpose of continuous defoaming.

[0051] Embodiment 2:

[0052] Reference Figure 9-10 , which is the second embodiment of the present invention, in which the dispensing assembly 7 includes a dispensing nozzle 71, a nozzle valve 72, a striker 73, a striker seat 74, a piston 75 and a hose joint 76, wherein the nozzle valve 72 is provided with a first channel and a second channel, wherein the hose joint 76 is inserted into one end of the second channel, and the other end of the second channel is connected to the middle of the first channel and communicated, and a sealing block 77 and a sealing inner ring 78 are fixed in the first channel, and the sealing block 77 and the sealing inner ring 78 are respectively located at the upper and lower sides of the connection between the second channel and the first channel, and a rotating component is also installed in the first channel above the sealing block 77, and one end of the striker 73 passing through the rotating component is movably connected to the bearing on the bottom surface of the piston 75, and the striker seat 74 below the sealing inner ring 78 is embedded in the first channel and fixed, and the dispensing nozzle 71 is threadedly connected to the striker seat 74, and the other end of the striker 73 passes through the sealing block 77 and the sealing inner ring 78 and extends into the striker seat 74;

[0053] A spiral arc piece is fixed on the outer wall of the striker 73 located above the sealing block 77, and a radial stirring rod 731 is provided on the outer wall of the striker 73 located between the sealing block 77 and the sealing inner ring 78. The rotating component includes a positioning ring 791 fixed to the inner wall of the first channel, and the inner ring of the positioning ring 791 is fixed to the limiting plate 792. The limiting plate 792 has a slot for the striker 73 and the spiral arc piece to pass through.

[0054] The sealing block 77 is sealedly connected to the striker 73, the cylinder rod connected to the top surface of the piston 75 passes through the nozzle valve 72 and connects to the striker cylinder, and a guide block is fixed on the outer wall of the cylinder rod, and the guide block and the cylinder rod pass through a ring frame with a notch to limit the rotation of the cylinder rod.

[0055] The interior of the striker 73, the stirring rod 731 and the cylinder rod are hollow structures, and heating wires are provided in the cavities of the striker 73 and the stirring rod 731. The heating wire on the stirring rod 731 is connected in parallel to the heating wire of the striker 73. The heating wire of the striker 73 passes through the piston 75 and extends through the cylinder rod to the outside of the nozzle valve 72 and is connected to the power supply.

[0056] The striker cylinder is used to drive the cylinder rod to rise and fall to realize the rise and fall of the piston 75, and the guide block is set to control the cylinder rod not to rotate during the lifting process. The striker 73 and the spiral arc piece are controlled to descend synchronously by the descent of the piston 75. Since the striker 73 and the piston 75 are connected by a bearing, the striker 73 can rotate around the piston 75, and the spiral arc piece will reciprocate on the limit plate 792 during the lifting process, thereby realizing the purpose of rotating the striker 73. The above operation realizes the lifting of the striker 73 to drive the stirring rod 731 and its own rotation to stir the glue in the second channel and maintain the activity of the glue.

[0057] The interior of the striker 73, the stirring rod 731 and the cylinder rod are hollow structures, and heating wires are provided in the cavities of the striker 73 and the stirring rod 731. The heating wire on the stirring rod 731 is connected in parallel to the heating wire of the striker 73. The heating wire of the striker 73 passes through the piston 75 and extends through the cylinder rod to the outside of the nozzle valve 72 and is connected to the power supply.

[0058] In addition, the device realizes the stirring rod 731 to rotate and rise and fall by lifting and lowering the striker 73, which can stir and heat the glue in the second channel over a larger range, avoiding the problem of the adhesive hardening quickly, causing the adhesive to become very viscous, resulting in glue hanging and drawing.

[0059] The firing pin cylinder controls the firing pin 73 in two modes, one for long-term glue application and the other for glue dispensing;

[0060] Long-time gluing mode: When the striker 73 descends, the position with a small diameter of the striker 73 moves to the inside of the sealing inner ring 78. At this time, the first channel, the second channel and the glue dispensing nozzle 71 are in a conducting state, and the glue in the glue box 6 passes through the second channel and the first channel through the hose joint 76 and is sprayed out from the glue dispensing nozzle 71 to achieve long-time gluing.

[0061] Glue dispensing mode: the striker 73 rises or falls back and forth, the striker 73 falls to a position with a small diameter and moves to the inside of the sealing inner ring 78, the glue in the glue box 6 passes through the second channel and the first channel through the hose joint 76 and is sprayed out from the glue dispensing nozzle 71, the striker 73 then rises, the position with a large diameter of the striker 73 seals the sealing inner ring 78 to cut off the glue dispensing nozzle 71, and during the upward movement of the striker 73, a local vacuum is formed between the striker 73 and the glue dispensing nozzle 71, and the glue in the glue dispensing nozzle 71 retracts into the glue dispensing nozzle 71 under the action of negative pressure, thereby avoiding the problem of glue hanging on the glue dispensing nozzle 71.

[0062] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic glue dispensing device for a mobile phone back panel, comprising a base (1), an incoming material assembly line and a unloading material assembly line, characterized in that: The base (1) is equipped with a material incoming assembly line, a material unloading assembly line and a dispensing mobile frame, a dispensing component (7) is installed on the dispensing mobile frame, a rubber hose connected to the dispensing component (7) is connected to a defoaming component (8) with a pump, and a rubber hose connected to the outlet of the glue box (6) is connected to the defoaming component (8) through a pump; The defoaming assembly (8) comprises a bracket fixed on the base (1), the defoaming shell (81) is mounted on the bracket, a support bracket is fixed on the bottom wall of the defoaming shell (81), a fixed rod (82) is fixed on the support bracket, a rotating sleeve (83) is sleeved on the fixed rod (82), the top ends of the fixed rod (82) and the rotating sleeve (83) are inserted into the defoaming shell (81), the bottom channel of the fixed rod (82) is connected to the inner cavity of the defoaming shell (81) through a slot hole radially opened on the rotating sleeve (83), and the rubber hose sleeved on the bottom of the fixed rod (82) is connected to the glue dispensing assembly (7) through a pump; The rotating sleeve (83) is provided with two groups of rotating components (2) and a centrifugal support component (3) on the outer wall of the rotating sleeve (83) located inside the defoaming shell (81); the glue tank (21) provided on the rotating component (2) is connected to the feeding component (5) through a hose; the glue pipe inserted into the feeding component (5) passes through the defoaming shell (81) and is connected to the pump of the glue box (6); An elastic component is installed on the top end of the fixed rod (82) located inside the defoaming shell (81), and the transmission component (22) connected to the glue tank (21) is connected to the elastic component.

2. The automatic dispensing device for mobile phone back panel according to claim 1, characterized in that: The rotating assembly (2) comprises a support seat (23) axially connected to the rotating sleeve (83); a hollow arc-shaped plate is arranged on the port of the support seat (23); and the inner cavity of the support seat (23) is communicated with the inner cavity of the arc-shaped plate.

3. The automatic dispensing device for mobile phone back panel according to claim 1, characterized in that: The transmission component (22) comprises two gears meshing with each other, the two gears are respectively fixed to the first shaft (221) and the second shaft (222), the first shaft (221) and the second shaft (222) are inserted into the support seat (23) and connected through bearings, and rotate around the support seat (23), the top end of the first shaft (221) is fixed to the glue tank (21), and the bottom end of the first shaft (221) is connected to the inner cavity of the support seat (23).

4. The automatic dispensing device for mobile phone back panel according to claim 3 is characterized in that: The glue tank (21) is connected to the inner cavity of the arc-shaped plate through a shaft (221) and a support seat (23), and a rotating disk (223) is fixed at the top end of the two shafts (222).

5. The automatic dispensing device for mobile phone back panel according to claim 4, characterized in that: The elastic component comprises a baffle fixed on the top of the fixed rod (82); the fixed rod (82) is also sleeved with an arc seat (4) that slides up and down; a spring sleeved on the fixed rod (82) is fixed between the arc seat (4) and the baffle; and the arc surface of the arc seat (4) contacts the edge of the rotating disk (223).

6. The automatic glue dispensing device for mobile phone back panel according to claim 5, characterized in that: The centrifugal support assembly (3) comprises a sleeve radially arranged along the rotating sleeve (83); one end of a push rod (31) inserted into the sleeve is movably connected to two ends of a push wheel (32) via a U-shaped frame; the push wheel (32) contacts the arc surface of the arc plate; and a spring sleeved on the push rod (31) is fixed between the U-shaped frame and the sleeve.

7. The automatic glue dispensing device for mobile phone back panel according to claim 6, characterized in that: The feed assembly (5) comprises a feed pipe (51) connected to the hose of the glue tank (21), the two ends of the middle part of the feed pipe (51) are fixed on the rotating sleeve (83) through side rods, the feed pipe (51) rotates around the glue pipe seal, and the rotating sleeve (83) is connected to the motor on the support frame through a belt.

8. The automatic glue dispensing device for mobile phone back panel according to claim 7, characterized in that: The glue dispensing assembly (7) comprises a glue dispensing nozzle (71), a nozzle valve (72) and a hose joint (76), wherein the hose connected to the hose joint (76) passes through the drag chain at the top of the glue dispensing mobile frame and is connected to the hose of the fixed rod (82), wherein the nozzle valve (72) is installed on the glue dispensing mobile frame, and the glue dispensing nozzle (71) is assembled at the bottom end of the nozzle valve (72).

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