Circuit board dispensing device

Abstract

The utility model discloses a circuit board dispensing device which comprises a box body, a movable table top and a glue injection pipe, a supporting table is arranged at the top of the box body, a cross beam is fixedly supported above the supporting table through stand columns, a first servo motor is installed at one end of the cross beam, and a second servo motor is installed at the other end of the cross beam. The output end of the first servo motor extends into the portion, on one side of the cross beam, of the first groove body and is connected with a first threaded rod, a glue injection pipe is installed on one side of the first threaded rod through a movable block, a temperature control heater is arranged on one side of the glue injection pipe, and a glue dispensing head is arranged at the bottom of the glue injection pipe. The temperature control heater and the spiral heating pipe are arranged on the glue injection pipe, so that the temperature of glue can be accurately controlled, and the constant viscosity of the glue in the dispensing process is ensured. According to the technical characteristic, the dispensing uniformity and the dispensing precision are directly and remarkably improved, and the glue fluidity change caused by temperature fluctuation is effectively avoided, so that the production quality and the reliability of the circuit board are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to line board point gum technical field, concretely is a line board point gum device. BACKGROUND

[0002] In modern electronic manufacturing industry, the production of line board is a crucial link, and the point gum process is an indispensable part in the production process of line board. The quality and efficiency of point gum directly affect the performance and production cycle of line board.

[0003] At present, the traditional line board point gum device has many problems. In the uniformity and precision of point gum, the temperature of glue has an important influence on its viscosity, and the existing point gum device often lacks effective temperature control means. In the point gum process, the temperature of glue is easy to fluctuate, which leads to the instability of its viscosity, and further makes it difficult to guarantee the uniformity and precision of point gum. This will cause the uneven distribution of glue on the line board, affect the electrical performance and reliability of line board, and increase the product rejection rate. In the drying efficiency, the traditional point gum device usually adopts a single drying method, such as relying on natural air drying or simple hot air drying. This drying method is low in efficiency, and the glue curing time is long, which seriously affects the production cycle. Moreover, the single drying method may not ensure the complete curing of glue, and the residual uncured glue may be displaced or deformed in the subsequent production process, thereby reducing the quality of line board. SUMMARY

[0004] The utility model aims at providing a line board point gum device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a line board point gum device, comprising a box body, a movable table top and a glue injection pipe, a support table is arranged on the top of the box body, a crossbeam is fixedly supported on the upper side of the support table through a stand column, one end of the crossbeam is provided with a servo motor one, the output end of the servo motor one extends into the groove one inside the crossbeam one side and is connected with a threaded rod one, the threaded rod one side is connected with the glue injection pipe through a movable block, one side of the glue injection pipe is provided with a temperature control heater, the temperature control heater is connected with the spiral heating pipe arranged in the glue injection pipe, and the bottom of the glue injection pipe is provided with a point gum head, and the point gum head two sides are provided with ultraviolet curing lamps.

[0006] One end of the support table is provided with a servo motor two, the output end of the servo motor two extends into the groove two inside the top of the support table and is connected with a threaded rod two, the threaded rod two is provided with a movable table top, and the four corner positions of the movable table top are provided with clamping plates through springs.

[0007] The support table top on both sides of the movable table top is respectively provided with a distribution cover and a return air cover, and the distribution cover and the return air cover are respectively connected with an air inlet pipe and an air return pipe, one end of the air inlet pipe is connected with an air pump output end arranged in the box body, and a hot box is arranged in the box body on one side of the air pump, and an input end of the hot box is connected with the air return pipe.

[0008] Preferably, the inside of the hot box is provided with an electric heating rod and a temperature sensor, and the inner wall of the hot box is uniformly paved with a heat preservation layer.

[0009] Preferably, the inside of the box body is further provided with a glue barrel, and a glue dispensing pump is mounted on the top of the glue barrel, an input pipe of the glue dispensing pump extends into the glue barrel, and an output pipe of the glue dispensing pump is connected with an input end of a glue injection pipe.

[0010] Preferably, a metal filter screen is arranged at the opening of the return air cover, and an activated carbon filter element is arranged in the return air cover inside the metal filter screen.

[0011] Preferably, a controller is arranged on one side of the stand column of the support table, and the controller is connected with a temperature control heater, an ultraviolet curing lamp, a servo motor one, a servo motor two, an electric heating rod and a temperature sensor.

[0012] Preferably, the clamping plate is of L-shaped structure, and the inside of the movable table top is provided with a spring movable groove body for accommodating the spring, and the horizontal section of the clamping plate and the spring are arranged in the inside of the movable groove body.

[0013] The utility model relates to a kind of line board glue dispensing devices, compared with prior art, with significant beneficial effects, it is embodied in the following several aspects:

[0014] 1. improve glue dispensing uniformity and precision:

[0015] By setting temperature control heater and spiral heating tube in glue injection pipe, the temperature of glue can be accurately controlled, ensuring constant viscosity of glue during glue dispensing process. This technical feature directly brings significant improvement of glue dispensing uniformity and precision, effectively avoids the change of glue flowability caused by temperature fluctuation, thereby improving the production quality and reliability of line board.

[0016] 2. combined drying technology improves drying efficiency:

[0017] The device innovatively combines hot air drying and ultraviolet drying two technologies. By setting ultraviolet curing lamp on both sides of glue dispensing head and designing hot air circulation system in box body, hot air and ultraviolet light can be used simultaneously for rapid curing of glue. This combined drying technology not only greatly improves drying efficiency and shortens production cycle, but also ensures complete curing of glue, avoiding line board quality problems caused by incomplete drying.

[0018] 3. Optimize the hot air circulation system to reduce energy consumption:

[0019] The hot air circulation system composed of the air inlet pipe, air return pipe and hot box designed inside the box can evenly distribute hot air in the dispensing area, accelerating the curing of glue. At the same time, the heat preservation layer set in the hot box effectively reduces heat loss and improves heat energy utilization efficiency, thereby reducing overall energy consumption. This design not only improves production efficiency, but also meets the environmental protection requirements of energy saving and emission reduction.

[0020] 4. Purify the intake air to ensure product quality:

[0021] The metal filter screen is arranged at the opening of the air return cover, and the activated carbon filter element is installed on the inner side, which can effectively filter the air entering the box, ensure clean intake air, and avoid dust and other impurities polluting the circuit board. This design significantly improves product quality and prolongs the service life of the circuit board.

[0022] 5. Flexible control system to improve operation convenience:

[0023] The controller arranged on one side of the support column is connected with the temperature control heater, ultraviolet curing lamp, servo motor one, servo motor two, electric heating rod and temperature sensor to realize centralized control of each component. The operator can conveniently adjust various parameters through the controller to improve the flexibility and convenience of operation, further improving production efficiency.

[0024] 6. Structure design optimization to enhance stability:

[0025] The four corner positions of the movable table top are provided with clamping plates through springs, the clamping plates adopt L-shaped structure, and the inner side of the movable table top is provided with movable groove bodies for accommodating the springs. This design not only enhances the stability of the movable table top, but also can absorb and buffer external impact to a certain extent, protecting the circuit board from damage.

[0026] In summary, the present application improves the dispensing uniformity, drying efficiency, operation convenience and product quality of the circuit board dispensing device through multiple technical innovations and optimization design. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is the inside structure schematic view of glue injection pipe of the utility model;

[0030] Figure 3 It is the overhead structure schematic view of movable table board of the utility model;

[0031] Figure 4 It is the hot box structure schematic view of the utility model;

[0032] Figure 5 It is the return air cover structure schematic view of the utility model;

[0033] In the drawing: 1, box body; 2, air inlet pipe; 3, distribution cover; 4, controller; 5, groove body one; 6, movable block; 7, threaded rod one; 8, crossbeam; 9, servo motor one; 10, return air cover; 11, air return pipe; 12, support table; 13, glue barrel; 14, glue dispensing pump; 15, hot box; 16, air pump; 17, clamping plate; 18, movable table board; 19, glue dispensing head; 20, glue injection pipe; 21, temperature control heater; 22, ultraviolet curing lamp; 23, groove body two; 24, spring; 25, threaded rod two; 26, servo motor two; 27, thermal insulation layer; 28, temperature sensor; 29, spiral heating tube; 30, metal filter screen; 31, activated carbon filter element; 32, electric heating rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] Please refer to Figures 1-5 An embodiment provided by the utility model: a circuit board glue dispensing device, including box body 1, movable table board 18 and glue injection pipe 20, the top of box body 1 is provided with support table 12, the top of support table 12 is fixedly supported with crossbeam 8 through stand column, and one end of crossbeam 8 is installed with servo motor one 9, the output end of servo motor one 9 extends to the inside of groove body one 5 on one side of crossbeam 8 and is connected with threaded rod one 7, one side of threaded rod one 7 is installed with glue injection pipe 20 through movable block 6, one side of glue injection pipe 20 is provided with temperature control heater 21, temperature control heater 21 is connected with spiral heating tube 29 arranged inside glue injection pipe 20, and the bottom of glue injection pipe 20 is provided with glue dispensing head 19, and ultraviolet curing lamp 22 is arranged on both sides of glue injection pipe 20 of glue dispensing head 19.

[0036] Box body 1 is the basic support structure of the whole device, and the top of box body 1 is provided with support table 12. The support table 12 provides a stable support platform to ensure the stability of the device during operation.

[0037] The upper part of the support table 12 is fixedly supported by the column with the cross beam 8. The cross beam 8 is made of high-strength material to ensure that it can withstand various loads during operation of the device. One end of the cross beam 8 is provided with a servo motor 9. The servo motor 9 is selected to be a high-precision and high-torque servo motor, and its output end extends into the groove body 5 on one side of the cross beam 8 and is connected with the threaded rod 7 through a connecting piece.

[0038] The threaded rod 7 is provided on one side with a glue injection pipe 20 through a movable block 6. The design of the movable block 6 enables the glue injection pipe 20 to move linearly inside the groove body 5 of the cross beam 8, thereby achieving accurate adjustment of the glue injection position. The glue injection pipe 20 is made of a material resistant to high temperature and corrosion to ensure that it can work normally in high-temperature and chemical environments.

[0039] One side of the glue injection pipe 20 is provided with a temperature control heater 21. The temperature control heater 21 is connected with a spiral heating pipe 29 arranged inside the glue injection pipe 20 through wires. The temperature control heater 21 functions to heat the glue inside the glue injection pipe 20 to maintain the fluidity of the glue and ensure the smooth progress of the glue injection process. The temperature control heater 21 adopts an intelligent temperature control system and can automatically adjust the heating power according to preset temperature parameters, thereby achieving accurate control of the temperature of the glue.

[0040] The bottom of the glue injection pipe 20 is provided with a glue injection head 19. The glue injection head 19 is made of a precision machining process, and its outlet aperture can be adjusted as needed to adapt to the needs of different glue injection amounts. The glue injection pipe 20 on both sides of the glue injection head 19 is provided with an ultraviolet curing lamp 22. The ultraviolet curing lamp 22 functions to quickly cure the glue after glue injection to improve production efficiency. The ultraviolet curing lamp 22 adopts a high-intensity ultraviolet light source and can quickly initiate the curing reaction of the glue.

[0041] The inside of the box body 1 is also provided with a glue barrel 13, and the top of the glue barrel 13 is provided with a glue injection pump 14. The input pipe of the glue injection pump 14 extends into the inside of the glue barrel 13, and the output pipe of the glue injection pump 14 is connected with the input end of the glue injection pipe 20.

[0042] The inside of the box body 1 is provided with a glue barrel 13, which is made of a plastic material resistant to chemical corrosion to ensure the safety of the storage of glue. The volume of the glue barrel 13 can be selected according to actual use needs, and the commonly used volume range is 5 liters to 50 liters. The bottom of the glue barrel 13 is provided with a support frame fixed on the bottom plate of the box body 1 to ensure that the glue barrel 13 remains stable during use.

[0043] The top of the glue barrel 13 is provided with a glue dispensing pump 14. The glue dispensing pump 14 is selected from a high-precision electromagnetic drive pump, which has controllable flow and good stability. The glue dispensing pump 14 is fixed by bolts to ensure that it does not move during operation. The input pipe of the glue dispensing pump 14 extends into the glue barrel 13, and a filter screen is arranged at the end of the input pipe to prevent impurities in the glue from entering the glue dispensing pump 14 and affecting its normal operation.

[0044] The output pipe of the glue dispensing pump 14 is connected with the input end of the glue injection pipe 20. The glue injection pipe 20 is made of high-pressure resistant hose material, which has good flexibility and corrosion resistance. The connection between the output pipe and the input end adopts a quick connector, which is convenient for operators to quickly replace and maintain.

[0045] One end of the support table 12 is provided with a servo motor 26, the output end of the servo motor 26 extends into the groove 23 on the top of the support table 12 and is connected with a threaded rod 25, the threaded rod 25 is provided with a movable table top 18, and the four corner positions of the movable table top 18 are provided with clamping plates 17 through springs 24.

[0046] The clamping plate 17 is L-shaped, and the inner side of the movable table top 18 is provided with a movable groove body for accommodating the spring 24, and the horizontal section of the clamping plate 17 and the spring 24 are arranged in the movable groove body.

[0047] Specifically, the clamping plate 17 is L-shaped, the vertical section is fixed on the four corners of the movable table top 18, and the horizontal section extends to the inner side of the movable table top 18.

[0048] The inner side of the movable table top 18 is provided with a movable groove body for accommodating the spring 24. The horizontal section of the clamping plate 17 and the spring 24 are arranged in the movable groove body. One end of the spring 24 is fixed on the inner side wall of the movable table top 18, and the other end is connected to the horizontal section of the clamping plate 17.

[0049] When the servo motor 26 is started, the output end drives the threaded rod 25 to rotate. Since the threaded rod 25 is connected with the movable table top 18, the rotation of the threaded rod 25 will cause the movable table top 18 to move up and down in the groove 23.

[0050] During the upward movement of the movable table top 18, the spring 24 is compressed, and the horizontal section of the clamping plate 17 is inwardly retracted under the action of the spring 24, thereby clamping the workpiece placed on the movable table top 18. When the movable table top 18 descends, the spring 24 gradually recovers to its original state, and the horizontal section of the clamping plate 17 expands outwardly to release the workpiece.

[0051] The support table 12 is the base of the utility model, and the top of the support table 12 is provided with a groove 23 for accommodating the movable table top 18 and its related components.

[0052] Servo motor two 26: servo motor two 26 is fixed on one end of support table 12, and its output end is connected with threaded rod two 25 through a connecting device, for driving threaded rod two 25 to rotate.

[0053] Threaded rod two 25: threaded rod two 25 penetrates through groove two 23, and the threads thereon are matched with the connecting device of movable table top 18, so that the up-down movement of movable table top 18 is realized through rotation.

[0054] Movable table top 18: movable table top 18 is arranged on threaded rod two 25, and clamping plates 17 are connected to four corner positions of movable table top 18 through springs 24.

[0055] Clamping plate 17: clamping plate 17 is of L-shaped structure, the vertical segment of which is fixed on four corners of movable table top 18, and the horizontal segment of which extends to the inner side of movable table top 18, for clamping workpieces.

[0056] Spring 24: spring 24 is arranged in the groove on the inner side of movable table top 18, one end of which is fixed on the inner side wall of movable table top 18, and the other end of which is connected to the horizontal segment of clamping plate 17, for providing clamping force.

[0057] Support table 12 on both sides of movable table top 18 is respectively provided with distribution cover 3 and air return cover 10, and distribution cover 3 and air return cover 10 are respectively connected with air inlet pipe 2 and air return pipe 11, one end of air inlet pipe 2 is connected with the output end of air pump 16 arranged in the inside of box body 1, and hot box 15 is arranged in the inside of box body 1 on one side of air pump 16, and the input end of hot box 15 is connected with air return pipe 11.

[0058] Hot box 15 is internally provided with electric heating rod 32 and temperature sensor 28, and the inner wall of hot box 15 is uniformly paved with heat preservation layer 27.

[0059] Metal filter screen 30 is arranged at the opening of air return cover 10, and activated carbon filter element 31 is arranged in the inside of air return cover 10.

[0060] Distribution cover 3 is located on the top of support table 12, and is designed to uniformly distribute air flow, so as to ensure that air can uniformly flow to movable table top 18. Air return cover 10 is also located on the top of support table 12, but its function is to collect air around movable table top 18 and send it back to hot box 15 through air return pipe 11.

[0061] One end of air inlet pipe 2 is connected with distribution cover 3, and the other end thereof is connected with the output end of air pump 16. One end of air return pipe 11 is connected with air return cover 10, and the other end thereof is connected with the input end of hot box 15. Air inlet pipe 2 and air return pipe 11 are both made of high-temperature-resistant materials, so as to ensure stable work in high-temperature environment.

[0062] The air pump 16 is arranged inside the box 1, and the output end thereof is connected with the distribution cover 3 through the air inlet pipe 2. The air pump 16 is used to send the air heated by the heat box 15 to the distribution cover 3, and then the air is uniformly distributed to the movable table top 18 by the distribution cover 3.

[0063] The heat box 15 is internally provided with an electric heating rod 32 and a temperature sensor 28. The electric heating rod 32 is used to heat the air entering the heat box 15, and the temperature sensor 28 is used to monitor the temperature inside the heat box 15 in real time, so as to ensure that the temperature is controlled within a preset range. The inner wall of the heat box 15 is uniformly paved with a heat preservation layer 27, and the heat preservation layer 27 is made of high-density heat preservation material, which effectively reduces heat loss.

[0064] The air return cover 10 is provided with a metal filter screen 30 at the opening thereof, which is mainly used to filter large particles in the air to prevent impurities from entering the heat box 15. The air return cover 10 is internally provided with an activated carbon filter element 31 inside the metal filter screen 30, which is used to adsorb odors and harmful substances in the air, so as to ensure the cleanliness of the circulating air.

[0065] The controller 4 is arranged on one side of the support column 12, and is connected with the temperature control heater 21, the ultraviolet curing lamp 22, the servo motor one 9, the servo motor two 26, the electric heating rod 32 and the temperature sensor 28.

[0066] In the use of the embodiment of the present application,

[0067] Glue preparation: a proper amount of glue is filled in the glue barrel 13, so as to ensure that the quality and quantity of the glue meet the requirements of the present glue dispensing task.

[0068] Equipment inspection: whether the connection of each component is stable is checked, such as the connection of the glue injection pipe 20 and the glue dispensing pump 14, the connection of the air inlet pipe 2 and the air return pipe 11, etc. Whether the power supply is turned on and whether each electrical element can normally work is checked.

[0069] Parameter setting: the target temperature of the temperature control heater 21 is set through the controller 4, so as to ensure that the glue reaches appropriate fluidity; the working time and intensity of the ultraviolet curing lamp 22 are set; the motion parameters of the servo motor one 9 and the servo motor two 26, such as moving speed and displacement distance, are set; the heating power of the electric heating rod 32 and the target temperature of the heat box 15 are set.

[0070] Clamping stage

[0071] Placing the circuit board: the circuit board to be dispensed with glue is placed on the movable table top 18.

[0072] Clamping the circuit board: the operator pushes the clamping plate 17 forward by using one end of the circuit board, so that the spring 24 is stretched, and then the other end of the circuit board is placed into the movable table top 18. The clamping plate 17 is inwards retracted under the action of the spring 24, so as to clamp the circuit board, and ensure that the position of the circuit board is fixed during the glue dispensing process.

[0073] Dispensing stage

[0074] Glue delivery: start the dispensing pump 14, which sucks the glue in the glue barrel 13 through the input pipe and then delivers it to the glue injection pipe 20 through the output pipe.

[0075] Temperature control: the temperature control heater 21 heats the glue in the glue injection pipe 20 through the spiral heating pipe 29 according to the preset temperature, so as to ensure that the viscosity of the glue remains constant during dispensing and facilitate uniform dispensing.

[0076] Dispensing position adjustment: start the servo motor 1 9 through the controller 4, and the output end drives the threaded rod 1 7 to rotate, so that the movable block 6 moves in the groove 1 5, and then drives the glue injection pipe 20 to move horizontally to the position to be dispensed on the circuit board.

[0077] Dispensing operation: the glue in the glue injection pipe 20 is dripped onto the circuit board through the dispensing head 1 9 to complete the dispensing operation. The outlet aperture of the dispensing head 1 9 can be adjusted in advance according to the dispensing amount requirement.

[0078] Curing stage

[0079] UV curing: at the same time or after the dispensing is completed, the UV curing lamps 22 on both sides of the dispensing head 1 9 are turned on to emit high-intensity ultraviolet rays to rapidly initiate the curing reaction in the glue and preliminarily cure the glue.

[0080] Hot air circulation curing: start the air pump 1 6 to deliver the heated air in the hot box 1 5 to the distribution cover 3 through the air inlet pipe 2, and the distribution cover 3 uniformly distributes the hot air around the circuit board on the movable table 1 8 to accelerate the curing of the glue. At the same time, the air return cover 1 0 collects the air around the circuit board, filters large particles through the metal filter 30, adsorbs odors and harmful substances through the activated carbon filter 31, and then sends it back to the hot box 1 5 through the air return pipe 1 1. The electric heating rod 32 in the hot box 1 5 heats the air again according to the temperature feedback from the temperature sensor 28 to realize hot air circulation.

[0081] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0082] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, "and / or" means and or, unless context clearly indicates otherwise. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0083] It should be noted that the terms "first", "second", and the like, used in the description and in the claims of the present application are intended to distinguish similar elements or steps in the specification. It should be understood, however, that the use of these terms in the description is not to imply a fixed order among the steps therein. It is to be understood that the data used herein can be interchanged, where appropriate, so that the embodiments of the present application described herein could be carried out in sequences other than those illustrated or described herein.

[0084] The preferred embodiments of the present application have been described above with the specific embodiments. The present application is not limited to the above embodiments. It will be appreciated by those skilled in the art that the present application can be varied and changed in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the present application.

Claims

1. A circuit board dispensing device, comprising a box (1), a movable table top (18) and a dispensing tube (20), characterized in that: The top of the box (1) is provided with a support table (12), the upper side of the support table (12) is fixedly provided with a cross beam (8) through a stand, one end of the cross beam (8) is provided with a servo motor (9), the output end of the servo motor (9) extends into a groove (5) on one side of the cross beam (8) and is connected with a threaded rod (7), one side of the threaded rod (7) is provided with a glue injection pipe (20) through a movable block (6), one side of the glue injection pipe (20) is provided with a temperature control heater (21), the temperature control heater (21) is connected with a spiral heating pipe (29) arranged in the glue injection pipe (20), and the bottom of the glue injection pipe (20) is provided with a glue dispensing head (19), the glue injection pipe (20) on both sides of the glue dispensing head (19) is provided with an ultraviolet curing lamp (22). One end of the support table (12) is provided with a servo motor (26), the output end of the servo motor (26) extends into a groove (23) on the top of the support table (12) and is connected with a threaded rod (25), the threaded rod (25) is provided with a movable table top (18), and the movable table top (18) is provided with a clamping plate (17) at four corner positions through a spring (24). The top of the support table (12) on both sides of the movable table top (18) is provided with a distribution cover (3) and a return air cover (10), respectively, and the distribution cover (3) and the return air cover (10) are connected with an air inlet pipe (2) and an air return pipe (11), respectively, the other end of the air inlet pipe (2) is connected with the output end of an air pump (16) arranged in the box (1), an air pump (16) is arranged in the box (1) on one side of the air pump (16), and the input end of a heat box (15) is connected with the air return pipe (11).

2. The apparatus according to claim 1, wherein: The inside of the heat box (15) is provided with an electric heating rod (32) and a temperature sensor (28), and the inner wall of the heat box (15) is uniformly paved with a heat preservation layer (27).

3. The apparatus according to claim 1, wherein: The inside of the box (1) is also provided with a glue barrel (13), and the top of the glue barrel (13) is provided with a glue dispensing pump (14), the input pipe of the glue dispensing pump (14) extends into the glue barrel (13), and the output pipe of the glue dispensing pump (14) is connected with the input end of the glue injection pipe (20).

4. The apparatus according to claim 1, wherein: The opening of the return air cover (10) is provided with a metal filter screen (30), and the inside of the return air cover (10) is provided with an activated carbon filter element (31) on the inside of the metal filter screen (30).

5. The apparatus according to claim 1, wherein: The stand on one side of the support table (12) is provided with a controller (4), and the controller (4) is connected with the temperature control heater (21), the ultraviolet curing lamp (22), the servo motor (9), the servo motor (26), the electric heating rod (32) and the temperature sensor (28).

6. The apparatus according to claim 1, wherein: The clamping plate (17) is of L-shaped structure, and the inside of the movable table top (18) is provided with a movable groove for accommodating the spring (24), and the horizontal section of the clamping plate (17) and the spring (24) are arranged in the movable groove.

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