Wire bonder for thermal printing sheet production

Abstract

The invention relates to the technical field of thermal printing sheet production, and proposes a wire bonding machine for thermal printing sheet production. The machine comprises a machine body and a welding module, and further comprises a welding placement plate, which is mounted on the top of the machine body. An electric heater is mounted inside the welding placement plate, a loading conveyor belt and a unloading conveyor belt, a ceramic substrate preheating system, which comprises a preheating box and a preheating mechanism, which is mounted on the top of the machine body, and the loading conveyor belt passes through the preheating box, a wire bonding system, which comprises a cooling box and a cooling mechanism, which is mounted on the top of the machine body, and the unloading conveyor belt passes through the cooling box, a welding part positioning mechanism, and a ceramic substrate cleaning mechanism, which is mounted on the machine body and is used to clean the ceramic substrate on the welding placement plate. The machine body is not prone to generating welding pores or weld contamination when performing welding processing on the thermal printing sheet.

Description

Technical Field

[0001] The invention relates to the technical field of thermal printing sheet production, in particular to a wire bonding machine for thermal printing sheet production. Background Art

[0002] Thermal printing sheets use the heat generated by energizing resistors on a circuit board to cause a reaction in heat-responsive materials (such as thermal recording paper or thermal transfer ink ribbon), thereby acting as recording media. Thermal printing sheets consist of a heating element, a ceramic substrate, and a connector. During production, a wire bonder is typically used to solder the heating element (i.e., resistor) and connector to the ceramic substrate.

[0003] When welding heating elements and ceramic substrates, existing wire bonding machines may cause welding porosity or weld contamination due to oil, rust, dirt, and scale on the base material or welding wire, or high humidity in the surrounding environment, affecting the quality of the welding wire and causing poor contact, which in turn affects the normal use of the thermal printing sheet. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the prior art, the present invention provides a wire bonding machine for producing thermal printing sheets to solve the problem mentioned in the background art that welding pores or weld contamination are easily generated when welding thermal printing sheets.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a wire bonding machine for producing thermal printing sheets, comprising a machine body and a welding module, wherein the welding module comprises a welding gun and a welding movable assembly for driving the welding gun to move, wherein the welding movable assembly comprises a transverse driving electric cylinder and a longitudinal driving electric cylinder, wherein the transverse driving electric cylinder is mounted on the top of the machine body, the longitudinal driving electric cylinder is mounted on the output end of the transverse driving electric cylinder, and the welding gun is mounted on the output end of the longitudinal driving electric cylinder, and further comprising:

[0008] A welding cover, wherein the welding cover is mounted on the top of the machine body, and the welding module is located inside the welding cover;

[0009] A welding placement plate, which is mounted on the top of the machine body and located inside the welding cover. The welding placement plate is a hollow structure, and an electric heater is installed inside the welding placement plate.

[0010] A loading conveyor belt and a unloading conveyor belt, both of which are installed on the machine body, and are respectively located on both sides of the welding placement plate, for conveying ceramic substrates;

[0011] A ceramic substrate preheating system includes a preheating box and a preheating mechanism. The preheating box is mounted on the top of the machine body, and the loading conveyor passes through the preheating box. The preheating mechanism is used to deliver hot air to the interior of the preheating box to preheat the ceramic substrate. The preheating mechanism includes a hot water tank, which is connected to an air supply pipe. Hot water is contained in the hot water tank. The air supply pipe is connected to the hot water tank, and one end of the air supply pipe extends into the hot water. The hot water tank is connected to the preheating box via a hot air pipe.

[0012] The welding wire cooling system includes a cooling box and a cooling mechanism. The cooling box is installed on the top of the machine body. The unloading conveyor belt passes through the cooling box. The cooling mechanism is used to deliver cold air to the interior of the cooling box to cool the ceramic substrate. The cooling mechanism includes a cold water tank. The interior of the cold water tank contains cold water. The air supply pipe is connected to the cold water tank. One end of the air supply pipe extends into the interior of the cold water. The cold water tank is connected to the cooling box through the cold air pipe.

[0013] A welding part positioning mechanism, the welding part positioning mechanism is used to position and place the ceramic substrate and the resistor connecting wires, the welding part positioning mechanism includes a vacuum adsorption mechanism for adsorbing the ceramic substrate, a displacement drive electric cylinder for driving the vacuum adsorption mechanism to move, an adsorption drive electric cylinder for driving the vacuum adsorption mechanism to lift and lower, a limiting component for limiting the ceramic substrate, and a manipulator for placing the resistor and the connecting wires, the displacement drive electric cylinder and the manipulator are both mounted on the top of the body, the adsorption drive electric cylinder is mounted on the output end of the displacement drive electric cylinder, and the vacuum adsorption mechanism is mounted on the output end of the adsorption drive electric cylinder;

[0014] The limiting component includes at least two clamping electric cylinders, which are installed on the welding placement plate. The output end of the clamping electric cylinder is installed with a clamping frame for clamping and limiting the ceramic substrate on the welding placement plate;

[0015] A ceramic substrate cleaning mechanism is installed on the machine body and is used to clean the ceramic substrate on the welding placement plate. The ceramic substrate cleaning mechanism includes a cleaning pad and a screw feed mechanism for driving the cleaning pad to move. The screw feed mechanism includes a cleaning motor, a screw rod, a slide rod and a moving block. The cleaning motor is installed on the top of the machine body, the screw rod is rotatably installed on the top of the machine body and fixedly installed on the output end of the cleaning motor, the slide rod is installed on the top of the machine body, and a nut matching the screw rod is installed on the moving block. The moving block and the slide rod are in sliding fit, and the cleaning pad is installed on the moving block.

[0016] In order to clean the dirt on the ceramic substrate, a dirt collecting mechanism for collecting dirt is installed on the top of the body. The dirt collecting mechanism includes a cleaning tank, and the cleaning tank is filled with cleaning liquid. A cleaning electric cylinder is installed on the moving block, and a mounting plate is fixedly installed on the output end of the cleaning electric cylinder. The cleaning pad is installed on the mounting plate.

[0017] In order to expand the blowing range of hot air and cold air and improve the preheating and cooling efficiency of the ceramic substrate, the hot air pipe and the cold air pipe are both connected to multiple blowing hoods, and the multiple blowing hoods are respectively connected to the preheating box and the cooling box.

[0018] In order to prevent the moisture in the hot air and the cold air from causing moisture to the ceramic substrate, the hot air pipe and the cold air pipe are both connected to a drying component, and the drying component includes a fixed shell, a movable shell and a water-absorbing pad. The fixed shell is connected to the hot air pipe or the cold air pipe, and the movable shell is threadedly connected to the fixed shell. The movable shell is connected to the corresponding multiple air blowing covers through a connecting hose. The water-absorbing pad is installed inside the movable shell and the fixed shell. The movable shell and the fixed shell are also installed with a water squeezing component for squeezing the water-absorbing pad to drain water;

[0019] Among them, the water squeezing assembly includes an extrusion electric cylinder, an extrusion net and a fixed net. The fixed net is installed inside the fixed shell, and the extrusion electric cylinder is installed on the movable shell. The output end of the extrusion electric cylinder extends into the interior of the movable shell and is connected to the extrusion net. The water absorbent pad is located between the extrusion net and the fixed net. The bottom of the fixed shell is connected to the cleaning pool through a water collecting pipe.

[0020] In order to drain the water in the absorbent pad more thoroughly, the fixed shell is placed at an angle, and the water collecting pipe is connected to the lower side of the fixed shell.

[0021] (3) Beneficial effects

[0022] Compared with the known public technology, the present invention provides a wire bonding machine for producing thermal printing sheets, which has the following beneficial effects:

[0023] In the present invention, the ceramic substrate is transported by a loading conveyor belt and a unloading conveyor belt, the loaded ceramic substrate is preheated by a preheating mechanism, and the welding placement plate is heated by an electric heater, thereby heating and drying the ceramic substrate, reducing the humidity of the welding environment, limiting the position of the ceramic substrate and the resistor connecting wire by a welding positioning mechanism, and cleaning the welding part of the ceramic substrate by a ceramic substrate cleaning mechanism, thereby reducing dirt on the ceramic substrate, ensuring welding quality, and reducing the generation of pores. By comparing with the above-mentioned existing technologies, this solution is not prone to generating welding pores or weld contamination when welding thermal printing sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention excluding the welding cover;

[0026] Figure 2 This is a schematic structural diagram of the present invention from another angle except for the welding cover;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 4 Schematic diagram of the structure of the ceramic substrate preheating system and the dirt collection mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the cold water tank, hot water tank and cleaning pool of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the drying component and the water squeezing component of the present invention;

[0031] Figure 7 Schematic diagram of the three-dimensional structure of the welding part positioning mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping electric cylinder and the clamping frame of the present invention.

[0033] The numbers in the figure represent:

[0034] 1. Machine body; 2. Welding module; 3. Welding cover; 4. Welding placement plate; 5. Electric heater; 6. Loading conveyor belt; 7. Unloading conveyor belt; 8. Air supply pipe; 9. Blowing cover;

[0035] 100. Ceramic substrate preheating system; 101. Preheating tank; 102. Hot water tank;

[0036] 200. Welding wire cooling system; 201. Cooling box; 202. Cold water tank;

[0037] 300, welding part positioning mechanism; 301, vacuum adsorption mechanism; 302, adsorption drive electric cylinder; 303, manipulator; 304, displacement drive electric cylinder; 305, clamping electric cylinder; 306, clamping frame;

[0038] 400, ceramic substrate cleaning mechanism; 401, cleaning pad; 402, cleaning motor; 403, lead screw; 404, slide rod; 405, moving block;

[0039] 500, sewage collection mechanism; 501, cleaning tank; 502, cleaning electric cylinder; 503, water squeezing plate;

[0040] 600, drying assembly; 601, fixed shell; 602, movable shell; 603, absorbent pad;

[0041] 700, water squeezing assembly; 701, extrusion electric cylinder; 702, extrusion net; 703, fixed net; 704, water collecting pipe. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0043] For example 1, please refer to Figures 1 to 8 The wire bonding machine for producing thermal printing sheets includes a machine body 1 and a welding module 2. The welding module 2 includes a welding gun and a welding moving assembly for driving the welding gun to move. The welding moving assembly includes a transverse driving electric cylinder and a longitudinal driving electric cylinder. The transverse driving electric cylinder is installed on the top of the machine body 1, and the longitudinal driving electric cylinder is installed at the output end of the transverse driving electric cylinder. The welding gun is installed at the output end of the longitudinal driving electric cylinder. The transverse driving electric cylinder can be used to drive the welding gun to move transversely to adjust the welding position. The longitudinal driving electric cylinder can be used to drive the welding gun to move up and down. The welding gun descends to the welding position for welding. It also includes a welding cover 3, a welding placement plate 4, a loading conveyor belt 6, a unloading conveyor belt 7, a ceramic substrate preheating system 100, a welding wire cooling system 200 and a welding part positioning mechanism 300.

[0044] See also Figure 3 The welding cover 3 is installed on the top of the machine body 1, and the welding module 2 is located inside the welding cover 3. The welding cover 3 can shield the welding module 2, ceramic substrate and resistor connecting wires at the welding position, reducing the pollution of external impurities and dirt to the welding position, thereby reducing the generation of weld contamination. The welding cover 3 is made of transparent material, and the welding condition inside it can be observed.

[0045] See also Figure 7The welding placement plate 4 is installed on the top of the machine body 1 and is located inside the welding cover 3. The welding placement plate 4 is a hollow structure, and an electric heater 5 is installed inside the welding placement plate 4. The welding placement plate 4 serves as a welding platform for the ceramic substrate and the resistor connecting wire. The ceramic substrate is placed on the top of the welding placement plate 4 for welding. The welding placement plate 4 can be heated by the electric heater 5, thereby heating and drying the ceramic substrate and reducing the humidity in the welding area. The heating temperature of the electric heater 5 is set within a certain range. While drying the ceramic substrate, it avoids affecting the welding of the resistor connecting wire.

[0046] See also Figures 1 to 2 The loading conveyor belt 6 and the unloading conveyor belt 7 are both installed on the machine body 1. The loading conveyor belt 6 and the unloading conveyor belt 7 are respectively located on both sides of the welding placement tray 4 and are used to transport ceramic substrates. The loading conveyor belt 6 and the unloading conveyor belt 7 are step-by-step conveyor belts. The ceramic substrate is placed on the loading conveyor belt 6. The loading conveyor belt 6 transports the ceramic substrate in steps. The distance of each transportation is the distance between the two placed ceramic substrates. It is transported to the welding placement tray 4 for welding. The thermal printing sheet after welding is placed on the unloading conveyor belt 7. The unloading conveyor belt 7 moves the thermal printing sheet after welding out for collection and subsequent processing.

[0047] See also Figures 4 and 5 The ceramic substrate preheating system 100 includes a preheating box 101 and a preheating mechanism. The preheating box 101 is installed on the top of the machine body 1. The feeding conveyor belt 6 passes through the preheating box 101. The preheating mechanism is used to transport hot air to the interior of the preheating box 101 to preheat the ceramic substrate. The preheating mechanism includes a hot water tank 102. The hot water tank 102 is connected to the air supply pipe 8. Hot water is contained in the hot water tank 102. The hot water tank 102 is connected to a water inlet pipe and a water outlet pipe. The air supply pipe 8 is connected to the hot water tank 102. One end of the air supply pipe 8 extends into the interior of the hot water. The hot water tank 102 is connected to the preheating box 101 through a hot air pipe.

[0048] The air supply pipe 8 is connected to the external air supply equipment, and the external air supply equipment supplies air to the inside of the hot water tank 102 through the air supply pipe 8. The external water heater delivers hot water to the inside of the hot water tank 102 through the water inlet pipe. The gas delivered by the air supply pipe 8 passes through the hot water and is heated into hot gas. The hot gas enters the interior of the preheating box 101 to assist in heating the loaded ceramic substrate, thereby drying the welding position of the ceramic substrate. The hot water in the hot water tank 102 flows back to the external water heater through the water outlet pipe for circulation heating.

[0049] See also Figures 4 and 5The welding wire cooling system 200 includes a cooling box 201 and a cooling mechanism. The cooling box 201 is installed on the top of the machine body 1. The unloading conveyor belt 7 passes through the cooling box 201. The cooling mechanism is used to transport cold air to the interior of the cooling box 201 to cool the ceramic substrate. The cooling mechanism includes a cold water tank 202. The interior of the cold water tank 202 is filled with cold water. The cold water tank 202 is connected to a water inlet pipe and a water outlet pipe. The air supply pipe 8 is connected to the cold water tank 202. One end of the air supply pipe 8 extends into the interior of the cold water. The cold water tank 202 is connected to the cooling box 201 through a cold air pipe.

[0050] The external air supply device supplies air to the interior of the cold water tank 202 through the air supply pipe 8. The external water chiller delivers cold water to the interior of the cold water tank 202 through the water inlet pipe. The gas delivered by the air supply pipe 8 passes through the cold water to be cooled. The cold air enters the interior of the cooling box 201 to cool the high-temperature thermal printing sheet after welding, making it easier to collect the thermal printing sheet and at the same time accelerating the solidification of the welding position to ensure the welding firmness of the resistor and the ceramic substrate.

[0051] It should be noted that the external air supply equipment delivers gas to the interior of the preheating box 101 and the cooling box 201, which can accelerate the flow of hot air and cold air, thereby further improving the preheating and cooling effects on the ceramic substrate.

[0052] See also Figures 7 and 8 The welding part positioning mechanism 300 is used to position and place the ceramic substrate and the resistor connecting wire. The welding part positioning mechanism 300 includes a vacuum adsorption mechanism 301 for adsorbing the ceramic substrate, a displacement drive electric cylinder 304 for driving the vacuum adsorption mechanism 301 to move, an adsorption drive electric cylinder 302 for driving the vacuum adsorption mechanism 301 to move up and down, a limiting component for limiting the ceramic substrate and a manipulator 303 for placing the resistor and the connecting wire. The displacement drive electric cylinder 304 and the manipulator 303 are both installed on the top of the body 1. A resistor placement rack is provided on the top of the body 1 for placing the resistor. The resistor can be clamped by the manipulator 303 and moved to the welding placement plate 4 for welding with the ceramic substrate. The staff regularly adds new resistors to be welded to the resistor placement rack. The adsorption drive electric cylinder 302 is installed at the output end of the displacement drive electric cylinder 304, and the vacuum adsorption mechanism 301 is installed at the output end of the adsorption drive electric cylinder 302. The limiting component includes at least two clamping electric cylinders 305, and the clamping electric cylinder 305 is installed on the welding placement plate 4. The output end of the clamping electric cylinder 305 is equipped with a clamping frame 306, which is used to clamp and limit the ceramic substrate on the welding placement plate 4.

[0053] The extension and retraction of the displacement-driven electric cylinder 304 can drive the vacuum adsorption mechanism 301 to move horizontally, adjust the position of the vacuum adsorption mechanism 301, and drive the vacuum adsorption mechanism 301 to move up and down by adsorption-driven electric cylinder 302. The vacuum adsorption mechanism 301 is an existing device well known to those skilled in the art. The vacuum adsorption mechanism 301 can adsorb the ceramic substrate and move the vacuum adsorption mechanism 301 by the displacement-driven electric cylinder 304. The vacuum adsorption mechanism 301 is provided with two groups. The distance between the two groups of vacuum adsorption mechanisms 301 is adapted to the distance between the welding placement plate 4 and the loading conveyor belt 6 and the unloading conveyor belt 7. When the vacuum adsorption mechanism 301 descends, the two groups of vacuum adsorption mechanisms 301 respectively adsorb the ceramic substrate on the loading conveyor belt 6 and the welding placement plate 4 The welded thermal printing sheet is adsorbed, and then the vacuum adsorption mechanism 301 is driven to move by the displacement driving electric cylinder 304, and the welded thermal printing sheet is moved to the top of the unloading conveyor 7. At the same time, the ceramic substrate on the loading conveyor 6 is moved to the top of the welding placement plate 4. The vacuum adsorption mechanism 301 is driven to descend by the adsorption driving electric cylinder 302, and the thermal printing sheet is placed on the unloading conveyor 7. The ceramic substrate is placed on the welding placement plate 4. The clamping electric cylinder 305 can drive multiple clamping frames 306 to move relative to each other, and the multiple clamping frames 306 clamp and limit the ceramic substrate. At the same time, the multiple clamping electric cylinders 305 can cooperate with each other to move the ceramic substrate and adjust the position of the ceramic substrate, so that the welding gun can weld different positions of the ceramic substrate.

[0054] When the thermal printing sheet production wire bonding machine performs wire bonding operation on the thermal printing sheet, the ceramic substrate is placed on the feeding conveyor 6, and the feeding conveyor 6 performs step-by-step conveying of the ceramic substrate. The external water heater supplies hot water to the interior of the hot water tank 102, and the external air supply equipment supplies air to the interior of the hot water tank 102. The gas is heated by the hot water, and the hot air is blown into the interior of the preheating box 101 to preheat the ceramic substrate, assisting in heating and drying the ceramic substrate. The feeding conveyor 6 transports the ceramic substrate to the welding placement tray 4 and stops. Two sets of vacuum adsorption mechanisms 301 are respectively located above the feeding conveyor 6 and the welding placement tray 4. The adsorption drive electric cylinder 302 drives the vacuum adsorption mechanism 301 to descend, and the vacuum adsorption mechanism 301 adsorbs the ceramic substrate on the feeding conveyor 6. The adsorption is carried out, and then the adsorption drive electric cylinder 302 drives the vacuum adsorption mechanism 301 and the ceramic substrate to rise, and the displacement drive electric cylinder 304 drives the vacuum adsorption mechanism 301 to move, and the ceramic substrate is moved to the top of the welding placement plate 4. The feeding conveyor 6 continues to operate to move the next ceramic substrate to the position of the previous ceramic substrate. The adsorption drive electric cylinder 302 drives the vacuum adsorption mechanism 301 and the ceramic substrate to descend, and releases the adsorption of the ceramic substrate by the vacuum adsorption mechanism 301. The ceramic substrate is placed on the surface of the welding placement plate 4, and the welding placement plate 4 is heated by the electric heater 5 to heat and dry the ceramic substrate. Then the adsorption drive electric cylinder 302 drives the vacuum adsorption mechanism 301 to rise, and the displacement drive electric cylinder 304 drives the two groups of vacuum adsorption mechanisms The structure 301 moves to other areas to avoid obstruction to welding. Initially, multiple clamping frames 306 are in a state of being far away from each other. Multiple clamping electric cylinders 305 drive multiple clamping frames 306 to approach each other to clamp and limit the ceramic substrate. The manipulator 303 clamps the resistor on the resistor placement frame, moves the resistor to the ceramic substrate on the welding placement disk 4 and aligns the connecting wire of the resistor with the welding position on the ceramic substrate. The horizontal driving electric cylinder drives the welding gun to move so that the welding gun moves to just above the welding position. The longitudinal driving electric cylinder drives the welding gun to descend and welds the resistor on the ceramic substrate. The displacement driving electric cylinder 304 drives the two sets of vacuum adsorption mechanisms 301 to move to correspond to the welding placement disk 4 and the feeding conveyor belt 6, and then the adsorption driving electric cylinder The cylinder 302 drives the vacuum adsorption mechanism 301 to descend. The two groups of vacuum adsorption mechanisms 301 respectively adsorb the ceramic substrate on the feeding conveyor belt 6 and the welded thermal printing sheet on the welding placement tray 4. The displacement drive electric cylinder 304 drives the vacuum adsorption mechanism 301 to move, and moves the ceramic substrate on the feeding conveyor belt 6 to the top of the welding placement tray 4, and moves the welded thermal printing sheet to the top of the unloading conveyor belt 7. The adsorption drive electric cylinder 302 drives the vacuum adsorption mechanism 301 to descend and release the adsorption effect of the vacuum adsorption mechanism 301, and performs welding of the ceramic substrate and transfer of the thermal printing sheet. The external chiller delivers cold water to the interior of the cold water tank 202, and the external air supply equipment delivers air to the interior of the cold water tank 202. The gas is cooled by the cold water.The cold air enters the cooling box 201 to cool down the thermal printing sheet, accelerate the solidification of the welding position, and collect the welded thermal printing sheets on the unloading conveyor belt 7 for further processing.

[0055] For example 2, please refer to Figures 4 to 6 In order to clean the welding position of the ceramic substrate and avoid weld contamination, based on the above-mentioned embodiment 1, the wire bonding machine for thermal printing sheet production also includes a ceramic substrate cleaning mechanism 400, which is installed on the machine body 1 and is used to clean the ceramic substrate on the welding placement plate 4. The ceramic substrate cleaning mechanism 400 includes a cleaning pad 401 and a screw feeding mechanism for driving the cleaning pad 401 to move. The screw feeding mechanism includes a cleaning motor 402, a screw rod 403, a slide rod 404 and a moving block 405. The cleaning motor 402 is installed on the top of the machine body 1, the screw rod 403 is rotatably installed on the top of the machine body 1 and is fixedly installed with the output end of the cleaning motor 402, the slide rod 404 is installed on the top of the machine body 1, and a nut matching the screw rod 403 is installed on the moving block 405. The moving block 405 and the slide rod 404 are in sliding fit, and the cleaning pad 401 is installed on the moving block 405.

[0056] The ceramic substrate is placed on the welding placement plate 4, and the clamping frame 306 is driven by the clamping electric cylinder 305 to clamp the ceramic substrate. The cleaning motor 402 can drive the screw rod 403 to rotate. The threaded cooperation between the nut and the screw rod 403 and the limiting effect of the sliding rod on the moving block 405 can make the moving block 405 drive the cleaning pad 401 to move. The cleaning pad 401 contacts the ceramic substrate to clean the surface of the ceramic substrate and clean the dirt on the welding position of the ceramic substrate, thereby avoiding weld contamination.

[0057] See also Figures 4 and 5 A dirt collecting mechanism 500 for collecting dirt is installed on the top of the body 1. The dirt collecting mechanism 500 includes a cleaning tank 501. Cleaning liquid is contained in the cleaning tank 501. A cleaning electric cylinder 502 is installed on the moving block 405. A mounting plate is fixedly installed on the output end of the cleaning electric cylinder 502. The cleaning pad 401 is installed on the mounting plate. A water squeezing plate 503 is installed on the top of the cleaning tank 501. A plurality of liquid drop holes are opened on the water squeezing plate 503. The height of the water squeezing plate 503 is higher than the liquid level of the cleaning liquid.

[0058] When the cleaning motor 402 drives the moving block 405 and the cleaning pad 401 to move to the top of the cleaning tank 501, the cleaning electric cylinder 502 drives the cleaning pad 401 to descend to the inside of the cleaning tank 501. The cleaning electric cylinder 502 drives the cleaning pad 401 to rise and fall repeatedly, and the cleaning liquid cleans the dirt on the surface of the cleaning pad 401. Then the cleaning motor 402 drives the cleaning pad 401 to move to the top of the water squeezing plate 503. The cleaning electric cylinder 502 drives the cleaning pad 401 to press on the top of the water squeezing plate 503 and squeeze out the water inside it to prevent water from remaining on the ceramic substrate. At the same time, the welding placement plate 4 and the ceramic substrate are heated and dried by the electric heater 5 to prevent water from remaining.

[0059] See also Figures 5 and 6 , the hot air pipe and the cold air pipe are both connected with a plurality of blowing hoods 9, and the plurality of blowing hoods 9 are respectively connected with the preheating box 101 and the cooling box 201, which can increase the blowing range of hot air and cold air, and facilitate the hot air and cold air to quickly fill the preheating box 101 and the cooling box 201, thereby accelerating the preheating and cooling speed. The hot air pipe and the cold air pipe are both connected with a drying component 600, and the drying component 600 includes a fixed shell 601, a movable shell 602 and a water absorbent pad 603. The fixed shell 601 is connected with the hot air pipe or the cold air pipe, and the movable shell 602 is threadedly connected to the fixed shell 601. The movable shell 602 is connected with the corresponding plurality of blowing hoods 9 through a connecting hose, and the water absorbent pad 603 is installed inside the movable shell 602 and the fixed shell 601. The interior of the movable shell 602 and the fixed shell 601 is also equipped with a squeezing assembly 700 for squeezing and draining the water absorbent pad 603. The squeezing assembly 700 includes an extrusion electric cylinder 701, an extrusion net 702 and a fixed net 703. The fixed net 703 is installed inside the fixed shell 601, and the extrusion electric cylinder 701 is installed on the movable shell 602. The output end of the extrusion electric cylinder 701 extends into the interior of the movable shell 602 and is connected to the extrusion net 702. The water absorbent pad 603 is located between the extrusion net 702 and the fixed net 703. The bottom of the fixed shell 601 is connected to the cleaning pool 501 through a water collecting pipe 704. The fixed shell 601 is placed at an angle, and the water collecting pipe 704 is connected to the lower side of the fixed shell 601.

[0060] The hot air and cold air in the hot air pipe and the cold air pipe are blown to the inside of the fixed shell 601 and the movable shell 602, and the absorbent pad 603 absorbs the moisture in the hot air and cold air, so that the hot air and cold air are dry gases when they enter the preheating box 101 and the cooling box 201, so as to avoid causing moisture to the ceramic substrate. The squeezing net 702 and the fixed net 703 are driven by the squeezing electric cylinder 701 to squeeze the absorbent pad 603 to squeeze out the water inside the absorbent pad 603. The water in the absorbent pad 603 flows to the water collecting pipe 704 under the tilting action of the fixed shell 601, and the water is introduced into the interior of the cleaning tank 501 through the water collecting pipe 704 for utilization.

[0061] During the use of the thermal printing sheet production wire bonding machine in the above-mentioned embodiment 1, when hot air and cold air are blown into the hot air box and the cold air box and then enter the corresponding fixed shell 601 and the movable shell 602 respectively, the absorbent pad 603 absorbs the moisture in the hot air and cold air to keep the hot air and cold air dry, and then the squeezing electric cylinder 701 drives the squeezing net 702 to squeeze the absorbent pad 603, squeezing out the moisture inside the absorbent pad 603, and flows into the interior of the cleaning tank 501 through the water collecting pipe 704 for cleaning the cleaning pad 401. The movable shell 602 is unscrewed regularly, and the absorbent pad 603 can be removed from the movable shell 602 for cleaning or replacement.

[0062] When the ceramic substrate is placed on the welding placement plate 4, the cleaning motor drives the screw rod 403 to rotate, thereby driving the moving block 405 and the cleaning pad 401 to move to clean the surface of the ceramic substrate. After cleaning, the cleaning pad 401 is moved to the top of the cleaning tank 501, and the cleaning electric cylinder 502 drives the cleaning pad 401 to descend to the inside of the cleaning tank 501 and repeatedly rise and fall to clean the cleaning pad 401. Then the cleaning electric cylinder 502 drives the cleaning pad 401 to rise, and the cleaning motor drives the cleaning pad 401 to move above the water squeezing plate 503. The cleaning electric cylinder 502 drives the cleaning pad 401 to be pressed against the water squeezing plate 503, squeezing the cleaning liquid inside the cleaning pad 401 into the inside of the cleaning tank 501. The inside of the cleaning tank 501 is cleaned regularly and the cleaning liquid is replaced.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wire bonding machine for producing thermal printing sheets, comprising a machine body (1) and a welding module (2), wherein the welding module (2) is mounted on the machine body (1), and is characterized in that: Also includes: A welding placement plate (4), the welding placement plate (4) is installed on the top of the machine body (1), an electric heater (5) is installed inside the welding placement plate (4), the welding placement plate (4) is used to place a ceramic substrate, and the welding module (2) is located above the welding placement plate (4) and is used to weld the ceramic substrate; A loading conveyor belt (6) and a unloading conveyor belt (7), wherein the loading conveyor belt (6) and the unloading conveyor belt (7) are both mounted on the machine body (1) and are used for conveying ceramic substrates; A ceramic substrate preheating system (100), comprising a preheating box (101) and a preheating mechanism, wherein the preheating box (101) is mounted on the top of the machine body (1), the loading conveyor belt (6) passes through the preheating box (101), and the preheating mechanism is used to transport hot air into the preheating box (101) to preheat the ceramic substrate; A welding wire cooling system (200), the welding wire cooling system (200) comprising a cooling box (201) and a cooling mechanism, the cooling box (201) being mounted on the top of the machine body (1), the unloading conveyor belt (7) passing through the cooling box (201), and the cooling mechanism being used to transport cold air into the interior of the cooling box (201) to cool the ceramic substrate; A welding piece positioning mechanism (300), the welding piece positioning mechanism (300) being used to cooperate with the welding placement plate (4) to position and place the ceramic substrate and the resistor connecting wire; A ceramic substrate cleaning mechanism (400), the ceramic substrate cleaning mechanism (400) being mounted on the machine body (1) and being used to clean the ceramic substrate on the welding placement plate (4); The preheating mechanism comprises a hot water tank (102) and an air supply pipe (8), the hot water tank (102) contains hot water, the air supply pipe (8) is connected to the hot water tank (102), one end of the air supply pipe (8) extends into the hot water, and the hot water tank (102) is connected to the preheating tank (101) via the hot air pipe; The cooling mechanism comprises a cold water tank (202), the interior of the cold water tank (202) contains cold water, the air supply pipe (8) is connected to the cold water tank (202), one end of the air supply pipe (8) extends into the interior of the cold water, and the cold water tank (202) is connected to the cooling box (201) via the cold air pipe; The ceramic substrate cleaning mechanism (400) comprises a cleaning pad (401) and a screw feeding mechanism for driving the cleaning pad (401) to move, the screw feeding mechanism comprising a cleaning motor (402), a screw rod (403), a slide rod (404) and a moving block (405), wherein the cleaning motor (402) is mounted on the top of the machine body (1), the screw rod (403) is rotatably mounted on the top of the machine body (1) and fixedly mounted to the output end of the cleaning motor (402), the slide rod (404) is mounted on the top of the machine body (1), a nut matching the screw rod (403) is mounted on the moving block (405), the moving block (405) and the slide rod (404) are in sliding engagement, and the cleaning pad (401) is mounted on the moving block (405).

2. The wire bonding machine for producing thermal printing sheets according to claim 1, characterized in that: A dirt collecting mechanism (500) for collecting dirt is installed on the top of the machine body (1), and the dirt collecting mechanism (500) includes a cleaning pool (501), wherein cleaning liquid is contained in the cleaning pool (501), a cleaning electric cylinder (502) is installed on the moving block (405), an output end of the cleaning electric cylinder (502) is fixedly mounted with a mounting plate, and the cleaning pad (401) is mounted on the mounting plate, and a water squeezing plate (503) is installed on the top of the cleaning pool (501), and a plurality of liquid drop holes are opened on the water squeezing plate (503).

3. The wire bonding machine for producing thermal printing sheets according to claim 2, characterized in that: The welding part positioning mechanism (300) comprises a vacuum adsorption mechanism (301) for adsorbing a ceramic substrate, a displacement drive electric cylinder (304) for driving the vacuum adsorption mechanism (301) to move, an adsorption drive electric cylinder (302) for driving the vacuum adsorption mechanism (301) to move up and down, a limiting component for limiting the position of the ceramic substrate, and a manipulator (303) for placing resistors and connecting wires. The displacement drive electric cylinder (304) and the manipulator (303) are both mounted on the top of the machine body (1), the adsorption drive electric cylinder (302) is mounted on the output end of the displacement drive electric cylinder (304), and the vacuum adsorption mechanism (301) is mounted on the output end of the adsorption drive electric cylinder (302).

4. The wire bonding machine for producing thermal printing sheets according to claim 3, characterized in that: The hot air pipe and the cold air pipe are both connected to a plurality of air blowing hoods (9), and the plurality of air blowing hoods (9) are respectively connected to the preheating box (101) and the cooling box (201).

5. The wire bonding machine for producing thermal printing sheets according to claim 4, characterized in that: The hot air pipe and the cold air pipe are both connected to a drying component (600), and the drying component (600) includes a fixed shell (601), a movable shell (602) and a water-absorbing pad (603). The fixed shell (601) is connected to the hot air pipe or the cold air pipe, and the movable shell (602) and the fixed shell (601) are threadedly connected. The movable shell (602) is connected to the corresponding plurality of blowing covers (9) through a connecting hose. The water-absorbing pad (603) is installed inside the movable shell (602) and the fixed shell (601). A water-squeezing component (700) for squeezing and draining the water-absorbing pad (603) is also installed inside the movable shell (602) and the fixed shell (601).

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