A hot melt adhesive weight-increasing machine for badminton

Abstract

The present invention relates to a hot-melt adhesive weight-increasing machine for badminton, which comprises a turntable and a feeding unit, a glue injection unit, a flat pressing and cooling unit, a fan cooling unit and a discharging unit that are sequentially arranged around the turntable. The turntable is used for carrying a plurality of badminton balls and rotating; the feeding unit is used for feeding badminton balls onto the turntable; the glue injection unit is used for injecting hot-melt adhesive at the core of the badminton balls on the turntable; the flat pressing and cooling unit presses and cools the hot-melt adhesive in the core of the badminton balls through a flat pressing and cooling head in the unit; the fan cooling unit further cools the hot-melt adhesive after flattening and curing operations through a cooling fan in the unit; the discharging unit is used for discharging the badminton balls that have been weight-increased with hot-melt adhesive and cooled from the turntable. The advantages of the present invention are that it can realize the synchronous progress of melting glue, quantitative glue injection and temperature reduction and flat pressing, and the whole process is automatically controlled by a PLC programmer, so as to reduce the processes of the badminton manufacturing process and the number of workers employed.

Description

Technical Field

[0001] The present invention relates to a hot melt adhesive weight increasing machine for badminton, belonging to the technical field of sports goods manufacturing equipment. Background Art

[0002] During the production process of badminton, due to the process errors in each process and the natural camber of the feather pieces, the ball speed of some badminton is too slow, less than the product shipping requirements. For such slow-speed balls, the ball speed can be increased to meet the shipping requirements by weight increasing, effectively improving the shipping qualified rate. There are the following several methods in the industry for weight increasing and correction: one is to drill holes in the center of the badminton core and embed iron nails. Although this method has a fast correction speed, it has been stopped because of safety hazards complained by consumers; the second is to apply a bottom adhesive. After weight increasing by applying the adhesive, problems such as unstable ball speed control, uneven core of the badminton, uneven sticking of the core label, and poor appearance will occur. And after applying the adhesive, it is necessary to wait for the adhesive to dry, occupying a large amount of time and space, resulting in high labor and auxiliary material costs; the third is to add weight increasing pieces. The badminton corrected by this method can only be used after the weight increasing pieces are adhered, which takes a long time, has high requirements for glue, and the weight increasing pieces are easy to fall off; the fourth is to stick non-drying adhesive soft films, which are expensive and need to be manually pasted, and the pasting efficiency is extremely low. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to overcome the problems existing in the prior art, and provide a hot melt adhesive weight increasing machine for badminton, which can simplify the badminton production process, correct the ball speed of badminton, improve the passing rate of the ball speed of badminton, and reduce the production cost of badminton.

[0004] The technical solution for the present invention to solve its technical problems is as follows:

[0005] A hot melt adhesive weight increasing machine for badminton, comprising a turntable and a feeding unit, an injection unit, a flat pressing and cooling unit, a fan cooling unit and a discharging unit sequentially arranged around the turntable. The turntable is used for carrying a plurality of badminton and rotating;

[0006] The feeding unit is used for feeding badminton onto the turntable;

[0007] The injection unit is used for injecting hot melt adhesive at the core of the badminton on the turntable;

[0008] The flat pressing and cooling unit presses and cools the hot melt adhesive in the core of the badminton through the flat pressing and cooling head in the unit, and performs flat pressing and curing operations on the hot melt adhesive;

[0009] The fan cooling unit cools the hot melt adhesive again through the cooling fan in the unit after the flat pressing and curing operations;

[0010] The blanking unit is used to unload the badminton balls that have been weighted with hot melt adhesive and cooled from the turntable.

[0011] The further improved technical solution of the present invention is as follows:

[0012] Preferably, the feeding unit includes a feeding trough, a feeding ball cylinder, a feeding air cylinder, a gripper, a guiding trough, a presetting frame, a ball pressing air cylinder and a badminton ball pressing head; the feeding trough is inclined, and the discharging direction of the feeding trough faces the feeding ball cylinder. At the discharging port of the feeding ball cylinder, there is a gripper driven by the feeding air cylinder. The gripper is used to clamp the badminton balls at the discharging port of the feeding ball cylinder and send them to the guiding trough. The guiding trough is located below the gripper and is inclined. The discharging direction of the guiding trough faces the positioning through hole of the presetting frame; the badminton ball pressing head is installed on the piston rod of the ball pressing air cylinder and is used to press the badminton balls in the positioning through hole of the presetting frame into the sleeve seat of the turntable.

[0013] Preferably, the feeding ball cylinder is mainly composed of a cylindrical feeding section and a conical discharging section. One end of the cylindrical feeding section is the feeding port, and the other end is connected to one end of the conical discharging section. The other end of the conical discharging section is the discharging port. The diameter of the feeding port is larger than the skirt diameter of the badminton ball, and the diameter of the discharging port is slightly smaller than the skirt diameter of the badminton ball; the presetting frame is provided with a positioning through hole for supporting the badminton ball, and the diameter of the positioning through hole is smaller than the skirt diameter of the badminton ball.

[0014] Preferably, the glue injection unit moves up and down reciprocally driven by a glue injection air cylinder. The glue injection unit includes a glue melting cylinder, a glue melting heating coil, a three-way base, a glue pump air cylinder, a hot melt glue pump and a glue outlet nozzle. The glue melting cylinder and the hot melt glue pump are both installed on the three-way base, and the inside of the glue melting cylinder is connected to the pump cavity of the hot melt glue pump through the three-way base. A glue melting heating coil is sleeved on the glue melting cylinder. Hot melt glue is placed inside the glue melting cylinder. One end of the hot melt glue pump is connected to a glue pump air cylinder for controlling the inlet and outlet of the hot melt glue inside the pump, and the other end is provided with a glue outlet nozzle.

[0015] Preferably, the glue pump cylinder is connected to the glue pump mandrel. The tail of the glue pump mandrel is inserted into the sealed pump chamber of the hot melt glue pump, and the size of the pump chamber matches that of the glue pump mandrel. The glue pump mandrel is driven by the glue pump cylinder to reciprocate up and down in the pump chamber of the hot melt glue pump. In the pump body of the hot melt glue pump, a heating rod chamber and a hot melt glue channel are respectively formed. A glue pump heating rod for maintaining the temperature of the pump body is arranged in the heating rod chamber, and a pump body one-way valve for opening and closing the hot melt glue channel is arranged in the hot melt glue channel. The hot melt glue channel communicates the pump chamber of the hot melt glue pump with the inner cavity of the three-way base. The glue outlet nozzle has a fluid inlet channel and a fluid outlet channel, and a glue nozzle one-way valve for opening and closing the fluid inlet channel is arranged in the fluid inlet channel. Both the pump body one-way valve and the glue nozzle one-way valve include a one-way valve steel ball and a spring. The hot melt glue channel and the fluid inlet channel are both in a stepped shape with a smaller upper part and a larger lower part. The one-way valve steel ball is arranged at the intersection of the small head and the large head of the channel and can be used to block the channel. The spring is arranged in the large head. The cooperation between the steel ball and the spring plays the role of a one-way valve and can automatically block or open the channel.

[0016] With the above structure, the glue injection of the glue injection unit can be realized. The specific principle is as follows: When the glue pump cylinder pulls the glue pump mandrel upward, the working space in the pump chamber of the hot melt glue pump increases and the pressure inside it decreases. In this way, the pressure in the inner cavity of the three-way base is greater than the pressure in the working space of the pump chamber, compressing the spring of the pump body one-way valve and causing its one-way valve steel ball to fall. The hot melt glue channel is opened, and the hot melt glue enters the working space of the pump chamber through this channel. When the glue pump mandrel moves upward to the set position and stops, when the pressures on both sides of the pump body one-way valve reach equilibrium, the steel ball resets under the action of the spring and closes the hot melt glue feeding channel. At this time, the glue injection unit moves downward under the action of the glue injection cylinder, making the glue outlet nozzle align with the badminton ball core at the glue injection station. Then, the glue pump cylinder pushes the glue pump mandrel downward. The working space in the pump chamber of the hot melt glue pump shrinks, and the internal pressure increases, compressing the spring of the glue nozzle one-way valve and causing its one-way valve steel ball to fall. The fluid inlet channel of the glue outlet nozzle is opened, and the hot melt glue in the working space enters the glue outlet nozzle and is further extruded to the badminton ball core. When the glue pump mandrel moves downward and resets to the initial position and stops, when the pressures on both sides of the glue nozzle one-way valve reach equilibrium, the steel ball resets under the action of the spring and closes the hot melt glue discharging channel. In addition, the glue output of the hot melt glue pump is determined by the stroke size of the glue pump mandrel.

[0017] Preferably, the flat pressing and cooling unit includes a flat pressing cylinder, a fixed seat, a flat pressing cooling head, a cooling circulating water pipe and a cooling water chiller. The fixed seat is installed on the piston rod of the flat pressing cylinder, the flat pressing cooling head is installed on the fixed seat, and the inner cavity of the flat pressing cooling head is communicated with the cooling water chiller through the cooling circulating water pipe.

[0018] Preferably, the flat pressing and cooling head includes a body, the lower end surface of the body is adapted to the core of the badminton, the body has an inner cavity, a water inlet conduit is arranged in the inner cavity, the upper part of the body has a circulating water inlet joint and a circulating water outlet joint, the circulating water inlet joint is communicated with the inner cavity of the body through the water inlet conduit, the circulating water outlet joint is directly communicated with the inner cavity of the body, the circulating water inlet joint is connected with the cooling water outlet of the cooling water chiller through a circulating water inlet pipe, the circulating water outlet joint is connected with the hot water inlet of the cooling water chiller through a circulating water outlet pipe, and a circulating water pump is arranged in the cooling water chiller for pumping the cooling water out of the cooling water outlet of the chiller, sending it to the flat pressing and cooling head to cool the core of the ball, and then pumping the heat-exchanged water into the hot water inlet of the chiller, and the chiller cools it again.

[0019] In addition, the fan cooling unit includes a cooling fan, and the cooling fan has a guide cylinder, and its blowing direction is towards the cores of the badminton balls at the first fan cooling station and the second fan cooling station on the turntable.

[0020] Preferably, the blanking unit includes a blanking cylinder, a blanking ejector rod and a blanking groove. One end of the blanking ejector rod is connected to the blanking cylinder, and the other end faces the sleeve seat of the turntable. The sleeve seat is a cylindrical structure with both ends open. The blanking groove is inclined and installed at the blanking station of the turntable. In this way, the blanking cylinder drives the blanking ejector rod to move upward to lift the badminton in the sleeve seat, so that the badminton falls out of the sleeve seat and enters the blanking groove.

[0021] Preferably, the turntable sequentially forms a feeding station, a glue injection station, a flat pressing and cooling station, a first fan cooling station, a second fan cooling station and a blanking station along its rotation direction. Sleeve seats for fixing badminton are respectively arranged at the feeding station, the glue injection station, the flat pressing and cooling station, the first fan cooling station, the second fan cooling station and the blanking station.

[0022] The hot melt adhesive weight-increasing machine for badminton of the present invention further includes a control unit, which is mainly composed of a touch screen controller, an operation control box and an electrical control box. The touch screen controller is installed on the operation control box, and the touch screen controller is connected to a PLC program controller arranged in the electrical control box; an electrical control circuit and a PLC program controller are arranged in the electrical control box. The electrical control circuit is used to control the on / off of the power supply of the whole machine and the operation of the cooling fan, the circulating water pump and the cooling water chiller; the first control end of the PLC program controller is respectively connected to the feeding cylinder, the ball pressing cylinder, the glue injection cylinder, the glue pump cylinder, the flat pressing cylinder and the blanking cylinder through solenoid valves, the second control end is respectively connected to the melt glue heating coil and the glue pump heating rod through a temperature controller, the third control end is connected to the motor, the output end of the motor is connected to the turntable divider through a belt, and the turntable divider is connected to the turntable and drives the turntable to rotate. In this way, the PLC program controller controls the motor to drive the turntable to rotate through the turntable divider.

[0023] The advantages of the present invention are that it can realize the simultaneous melting of glue, quantitative injection of glue, cooling and flat pressing, and the whole process is automatically controlled by a PLC programmer, so as to reduce the processes of badminton production technology and the number of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the present invention.

[0025] Figure 2 It is a perspective view of another angle of the present invention.

[0026] Figure 3 It is a sectional view of the glue injection unit in the present invention.

[0027] Figure 4 It is a sectional view of the flat pressing and cooling unit in the present invention.

[0028] Figure 5 It is a principle block diagram of the control unit in the present invention.

[0029] In the figure: 1. feeding trough, 2. feeding ball cylinder, 3. feeding air cylinder, 4. gripper air cylinder, 5. guiding groove, 6. presetting frame, 7. ball pressing air cylinder, 8. badminton pressing head, 9. feeding station, 10. motor, 11. indexing cam, 12. turntable, 13. glue injection station, 14. glue injection air cylinder, 14-1. glue melting cylinder, 14-2. glue melting heating coil, 14-3. three-way base, 14-4. glue pump air cylinder, 14-5. hot melt glue pump, 14-6. glue outlet nozzle, 14-7. glue pump core rod connector, 14-8. glue pump core rod, 14-9. glue pump heating rod, 14-10. check valve steel ball, 14-11. spring, 15. flat pressing and cooling station, 16. flat pressing air cylinder, 17. flat pressing and cooling head, 17-1. circulating water inlet joint, 17-2. inlet conduit, 17-3. circulating water outlet joint, 17-4. fixing seat, 18. cooling circulating water pipe, 19. cooling water chiller, 20. cooling fan, 21. first fan cooling station, 22. second fan cooling station, 23. discharging station, 24. discharging air cylinder, 25. discharging ejector rod, 26. discharging trough, 27. touch screen controller, 28. operation control box, 29. electrical control box. DETAILED DESCRIPTION OF THE INVENTION

[0030] The present invention will be further described in detail below with reference to the drawings and in combination with embodiments. However, the present invention is not limited to the given examples. Embodiment 1

[0031] As Figure 1 and Figure 2As shown in the figure, a hot melt adhesive weight-increasing machine for badminton includes a turntable 12 and a feeding unit, a glue injection unit, a flat pressing and cooling unit, a fan cooling unit, and a blanking unit that are sequentially installed around the turntable 12. The turntable 12, the feeding unit, the glue injection unit, the flat pressing and cooling unit, the fan cooling unit, and the blanking unit are all installed on the frame of the hot melt adhesive weight-increasing machine. Along the rotation direction of the turntable 12, a feeding station 9, a glue injection station 13, a flat pressing and cooling station 15, a first fan cooling station 21, a second fan cooling station 22, and a blanking station 23 are sequentially formed. The feeding station 9, the glue injection station 13, the flat pressing and cooling station 15, the first fan cooling station 21, the second fan cooling station 22, and the blanking station 23 are respectively provided with two sleeve seats for fixing badminton. In addition, the turntable 12 is used to carry badminton and rotate; the feeding unit is used to feed badminton to the feeding station 9 of the turntable 12; the glue injection unit is used to inject hot melt adhesive into the badminton core at the glue injection station 13; the flat pressing and cooling unit presses and cools the hot melt adhesive in the badminton core at the flat pressing and cooling station 15 through the flat pressing and cooling head 17 in the unit, and performs operations of flattening and cooling and solidifying the hot melt adhesive; the fan cooling unit cools the hot melt adhesive in the badminton core at the first fan cooling station 21 and the second fan cooling station 22 again through the cooling fan 20 in the unit; the blanking unit is used to blank the badminton after weight-increasing with hot melt adhesive from the blanking station 23 of the turntable 12.

[0032] The loading unit is installed above the turntable loading station 9. The loading unit includes two loading chutes 1, two loading ball cylinders 2, two loading air cylinders 3, two air claw cylinders 4 with air claws, two guiding grooves 5, a pre-positioning frame 6, two ball pressing air cylinders 7 and two badminton pressing heads 8. The loading chute 1 is inclined, and the discharging direction of the loading chute 1 faces the inside of the loading ball cylinder 2. The loading ball cylinder 2 is mainly composed of a cylindrical feeding section and a conical discharging section. One end of the cylindrical feeding section is the feeding port, the other end is connected to one end of the conical discharging section, and the other end of the conical discharging section is the discharging port. The diameter of the feeding port is larger than the skirt diameter of the badminton, and the diameter of the discharging port is slightly smaller than the skirt diameter of the badminton, which is used to temporarily hold the badminton. An air claw driven by the loading air cylinder 3 and the air claw cylinder 4 is provided at the discharging port of the loading ball cylinder 2. The loading air cylinder 3 is connected to the air claw cylinder 4. The loading air cylinder 3 is used to drive the air claw cylinder 4 to make reciprocating up and down movements. An air claw is installed on the air claw cylinder 4, and the air claw cylinder 4 is used to drive the air claw to open and close. The air claw clamps the badminton located at the discharging port of the loading ball cylinder and sends it to the guiding groove 5. The guiding groove 5 is located below the air claw and is inclined. The discharging direction of the guiding groove 5 faces the positioning through holes of the pre-positioning frame 6. Two positioning through holes for temporarily supporting the badminton are made on the pre-positioning frame 6. The diameter of the positioning through hole is smaller than the skirt diameter of the badminton. The positioning through holes of the pre-positioning frame 6 are arranged in one-to-one correspondence with the sleeve seats at the turntable loading station 9. The badminton pressing head 8 is installed on the piston rod of the ball pressing air cylinder 7. The badminton pressing head 8 is driven by the ball pressing air cylinder 7 and can press the badminton located in the positioning through hole of the pre-positioning frame 6 into the sleeve seat at the turntable loading station 9.

[0033] The loading process of the loading unit is as follows: The badminton in the loading chute 1 naturally slides into the loading ball cylinder 2. The air claw cylinder 4 drives the air claw to clamp the badminton, and through the push of the loading air cylinder 3, the badminton is clamped to the guiding groove 5 and then released, allowing the badminton to naturally slide into the pre-positioning frame 6. Then, the ball pressing air cylinder 7 pushes the badminton pressing head 8 to press the badminton into the sleeve seat at the loading station 9 for fixation.

[0034] The glue injection unit is installed above the turntable glue injection station 13. The glue injection unit is driven by the glue injection air cylinder 14 to make reciprocating up and down movements as a whole. As Figure 3As shown in the figure, the glue injection unit includes a melting cylinder 14-1, two melting heating coils 14-2, a three-way base 14-3, two glue pump cylinders 14-4, two hot melt glue pumps 14-5 and two glue outlet nozzles 14-6. The melting cylinder 14-1 and the two hot melt glue pumps 14-5 are both installed on the three-way base 14-3, and the two hot melt glue pumps 14-5 are arranged on both sides of the melting cylinder 14-1. Two melting heating coils 14-2 are sleeved on the outer wall of the melting cylinder 14-1. Hot melt glue is placed inside the melting cylinder 14-1, and the inner cavity of the melting cylinder 14-1 is connected to the pump cavity of the hot melt glue pump 14-5 through the inner cavity of the three-way base 14-3. One end of the hot melt glue pump 14-5 is provided with a glue pump cylinder 14-4 for controlling the entry and exit of the hot melt glue in the hot melt glue pump 14-5, and the other end is provided with a glue outlet nozzle 14-6. The glue pump cylinder 14-4 is connected to the top end of the glue pump mandrel 14-8 through a glue pump mandrel connector 14-7. The tail of the glue pump mandrel 14-8 is inserted into the sealed pump cavity of the hot melt glue pump 14-5, and the inner diameter of the pump cavity matches the outer diameter of the glue pump mandrel 14-8. The glue pump cylinder 14-4 drives the glue pump mandrel 14-8 to reciprocate up and down in the pump cavity of the hot melt glue pump 14-5 through the glue pump mandrel connector 14-7 (the glue pump mandrel connector uses AirTAC's floating joint F-M6X100F). In addition, a heating rod cavity and a hot melt glue channel are respectively formed in the pump body of the hot melt glue pump 14-5 outside its pump cavity. A glue pump heating rod 14-9 for maintaining the temperature of the pump body is arranged in the heating rod cavity, and a pump body check valve for opening and closing the hot melt glue channel is arranged in the hot melt glue channel. The hot melt glue channel communicates the pump cavity of the hot melt glue pump 14-5 with the inner cavity of the three-way base 14-3. The glue outlet nozzle 14-6 has a fluid inlet channel and a fluid outlet channel communicating with the pump cavity of the hot melt glue pump 14-5, and the inner diameter of the fluid outlet channel is smaller than that of the fluid inlet channel. A nozzle check valve for opening and closing the fluid inlet channel is arranged in the fluid inlet channel. Both the pump body check valve and the nozzle check valve include a check valve steel ball 14-10 and a spring 14-11. The hot melt glue channel and the fluid inlet channel are both in a stepped shape with a smaller upper part and a larger lower part. The check valve steel ball 14-10 is arranged at the intersection of the small head and the large head of the hot melt glue channel / fluid inlet channel and can be used to block the above channels, while the spring 14-11 is arranged in the large head. The check valve steel ball 14-10 and the spring 14-11 cooperate to play the role of a check valve, and can automatically open or close the hot melt glue channel / fluid inlet channel.

[0035] The glue injection process of the glue injection unit is as follows: Place the hot melt glue in the melting cylinder 14-1 and heat it to a liquid state through the melting heating coil 14-2. In the normal state, the check valve steel ball 14-10 closes the hot melt glue channel and the fluid inlet channel under the action of the spring 14-11, and the glue injection unit does not inject glue. The glue volume control is quantitatively adjusted by adjusting the stroke of the glue pump mandrel 14-8.

[0036] When dispensing glue, the glue pump cylinder 14-4 pulls the glue pump mandrel 14-8 upward through the glue pump mandrel connector 14-7, opening the check valve of the pump body (compressing the spring 14-11 of the check valve of the pump body to make the check valve steel ball 14-10 fall), and the hot melt glue channel is unblocked. The liquid hot melt glue is sucked into the pump cavity of the hot melt glue pump 14-5 through the tee base 14-3. After the glue pump mandrel 14-8 reaches the set upward stroke, the pressures on both sides of the check valve of the pump body reach equilibrium, and the check valve steel ball 14-10 resets under the restoring force of the spring 14-11 to close the glue inlet channel. When the badminton to be glued is transferred to the glue injection station 13, the glue injection cylinder 14 pushes the glue injection unit downward so that the glue outlet nozzle 14-6 is placed in the core of the badminton. The glue pump cylinder 14-4 again pushes the glue pump mandrel 14-8 downward through the glue pump mandrel connector 14-7, opening the check valve of the glue outlet nozzle (compressing the spring 14-11 of the check valve of the glue outlet nozzle to make the check valve steel ball 14-10 fall), and the internal channel of the glue outlet nozzle 14-6 is unblocked. The liquid hot melt glue is extruded from the glue outlet nozzle 14-6 into the core of the ball. After the glue is completely dispensed, the glue injection cylinder 14 pulls the glue injection unit back to its original position.

[0037] The flat pressing and cooling unit is installed at the flat pressing and cooling station 15 of the turntable 12. As Figure 4 shown, the flat pressing and cooling unit includes a flat pressing cylinder 16, two flat pressing and cooling heads 17, a fixing seat 17-4, a cooling circulating water pipe 18 and a cooling water chiller 19. The fixing seat 17-4 is connected to the piston rod of the flat pressing cylinder 16, and the two flat pressing and cooling heads 17 are both installed on the fixing seat 17-4. The fixing seat 17-4 is connected to an L-shaped sliding table. The short side of the L-shaped sliding table is connected to the piston rod of the flat pressing cylinder 16, and the long side of the L-shaped sliding table is slidably engaged with the slide rail installed on the flat pressing cylinder fixing seat. The flat pressing cylinder 16 is installed on the frame of the weight increasing machine through the flat pressing cylinder fixing seat. The inner cavity of the flat pressing and cooling head 17-4 is connected to the cooling water chiller 19 through the cooling circulating water pipe 18. The cooling circulating water pipe 18 includes a circulating water inlet pipe and a circulating water outlet pipe. Among them, the flat pressing and cooling head 17 includes a cylindrical body. The lower end surface of the body is adapted to the core of the badminton. The body has an inner cavity, and a water inlet conduit 17-2 is arranged in the inner cavity. The upper part of the body has a circulating water inlet joint 17-1 and a circulating water outlet joint 17-3. The circulating water inlet joint 17-1 is connected to the inner cavity of the body through the water inlet conduit 17-2, and the circulating water outlet joint 17-3 is directly connected to the inner cavity of the body. The circulating water inlet joint 17-1 is connected to the cooling water outlet of the cooling water chiller 19 through the circulating water inlet pipe, and the circulating water outlet joint 17-3 is connected to the hot water inlet of the cooling water chiller 19 through the circulating water outlet pipe. A circulating water pump is also arranged in the cooling water chiller 19. The circulating water pump is used to pump the cooling water out from the cooling water outlet of the cooling water chiller 19, transport it to the inner cavity of the flat pressing and cooling head 17 to cool the core of the badminton, and then pump the heat-exchanged water into the hot water inlet of the cooling water chiller 19 for refrigeration heat exchange in the cooling water chiller 19.

[0038] The operation process of the flat pressing and cooling unit is as follows: After the cooling water chiller 19 cools down the circulating water, the cooled circulating water is pumped through the circulating water inlet pipe of the cooling circulation pipe 18 and the circulating water inlet joint 17-1 by the circulating water pump and enters the inlet conduit 17-2. Then, it is introduced into the flat pressing and cooling head 17 through the inlet conduit 17-2. After heat exchange in the flat pressing and cooling head 17, the circulating water is then introduced into the cooling water chiller 19 through the circulating water outlet joint 17-3 and the circulating water outlet pipe of the cooling circulation pipe 18 for cooling. When the badminton is transferred to the flat pressing and cooling station 15, the flat pressing cylinder 16 pushes the flat pressing and cooling head 17 downward to press the hot melt adhesive in the badminton core, so that the high-temperature hot melt adhesive is quickly flattened, cooled and solidified. Then, the flat pressing cylinder 16 pulls the flat pressing and cooling head 17 upward to reset.

[0039] The fan cooling unit is installed at the first fan cooling station 21 and the second fan cooling station 22 of the turntable 12. Two cooling fans 20 are installed above each fan cooling station. The fan cooling unit includes four groups of small cooling fans 20. Each cooling fan 20 is provided with a guide cylinder. Under the action of the guide cylinder, the blowing direction of the cooling fan 20 faces the badminton core in the sleeve seat at the first fan cooling station 21 / second fan cooling station 22.

[0040] The operation of the fan cooling unit is as follows: The turntable 12 rotates twice under the push of the turntable divider 11, rotating 120°. The badminton with hot melt adhesive is placed at the first air cooling station 21 and the second air cooling station 22. The cooling fan 20 is used to blow natural air into the core in a directional manner. Through two air coolings, the hot melt adhesive is cooled again to ensure that the hot melt adhesive is completely solidified before being transferred to the blanking station 23.

[0041] The blanking unit is installed at the blanking station 23 of the turntable. The blanking unit includes a blanking cylinder 24, a blanking ejector rod 25 and a blanking chute 26. One end of the blanking ejector rod 25 is connected to the blanking cylinder 24, and the other end faces the inside of the sleeve seat at the blanking station 23. The sleeve seat is a cylindrical structure with both ends open. The blanking chute 26 is inclined and installed at the blanking station 23. The blanking cylinder 24 drives the blanking ejector rod 25 to move upward to lift the badminton in the sleeve seat, so that the badminton falls off from the sleeve seat and then enters the blanking chute 26.

[0042] The operation of the blanking unit is as follows: When the badminton with completely solidified hot melt adhesive is transferred to the blanking station 23, the blanking cylinder 24 pushes the blanking ejector rod 25 to eject the badminton out of the station sleeve seat and into the blanking chute 26, and the blanking is completed. The weight gain correction work enters the subsequent process.

[0043] A control unit is also installed on the frame of the hot melt adhesive weight gain machine. As Figure 5As shown, the control unit is mainly composed of a touch screen controller 27 (purchased from Weiluntong Company, model TK6051iP), an operation control box 28 and an electrical control box 29, and adopts a human-machine interface, which is simple to operate and convenient to debug. The touch screen controller 27 is installed on the upper surface of the operation control box 28, and is connected to the PLC program controller (purchased from Mitsubishi, model FX1N-40MT) set in the electrical control box 29 through the FX data line, so that the program operation, termination and parameter setting instructions can be input through the human-machine interface of the touch screen controller 27 to control the PLC program controller, and at the same time, the working status and the cause of the equipment failure can be quickly understood through the human-machine interface, and quickly eliminated. The electrical control box 29 is provided with an electrical control circuit and a PLC program controller. The first control end of the PLC program controller is connected to the feeding cylinder 3 / air claw cylinder 4 / ball pressing cylinder 7 / glue injection cylinder 14 / glue pump cylinder A / glue pump cylinder B / flat pressing cylinder 16 / unloading cylinder 24 through the feeding solenoid valve / gripping solenoid valve / ball pressing solenoid valve / glue injection solenoid valve / glue pump solenoid valve A / glue pump solenoid valve B / flat glue solenoid valve / unloading solenoid valve respectively. The second control end is connected to the melt heating ring 14-2 and the glue pump heating rod A and the glue pump heating rod B through the temperature controller (purchased from Songdao Company, model CH401). The third control end is connected to the motor 10. The output end of the motor 10 is connected to the turntable divider 11 through a belt. The turntable divider 11 is connected to the turntable 12 and drives the turntable 12 to rotate. In this way, the PLC program controller can control the motor 10 to drive the turntable 12 to rotate through the turntable divider 11. On the upper surface of the operation control box 28, on one side of the touch screen controller 27, operation buttons (such as fault indicator light, fault clearing, main power on, main power off, etc.) are provided. The operation buttons are connected to the electrical control circuit in the electrical control box 29 through cables. The electrical control circuit is used to control the main power on and off and the operation of the cooling fan 20, circulating water pump, and cooling water chiller 19.

[0044] During actual operation, the badminton in the feeding trough 1 naturally slides into the feeding ball tube 2, the pneumatic claw cylinder 4 drives the pneumatic claw to clamp the badminton, and the feeding cylinder 3 drives the pneumatic claw cylinder 4 to move, clamps the badminton to the guide groove 5 and then releases it, allowing the badminton to naturally slide into the positioning through hole of the preset position frame 6. At this time, the ball pressing cylinder 7 pushes the badminton pressing head 8 to move downward to press the badminton into the sleeve seat of the feeding station 9 and fix it; the motor 10 drives the turntable divider 11 to operate through the belt, and then drives the turntable 12 to rotate counterclockwise 60°, so that the badminton after unloading moves to the glue injection station 13; at the glue injection station 13, the glue injection cylinder 14 pushes the glue injection unit to move downward so that Its glue outlet nozzle 14-6 is placed in the core of the badminton, and then the glue pump cylinder 14-4 pushes the glue pump core rod 14-8 to move so that the hot melt glue pump 14-5 pumps out the hot melt glue quantitatively, so that the hot melt glue in the glue tube 14-1 is squeezed into the core of the badminton from the glue outlet nozzle 14-6. After the glue injection is completed, the glue injection cylinder 14 pulls the glue injection unit to move up and reset; the motor 10 drives the turntable divider 11 to operate through the belt, and then pushes the turntable 12 to rotate counterclockwise by 60°, so that the badminton after glue injection moves to the flat pressing cooling station 15; at the flat pressing cooling station 15, the cooling water chiller 19 cools the circulating water and then introduces it into the flat pressing through the cooling circulating water pipe 18 In the cooling head 17, the flat-pressure cooling head 17 is kept at a low temperature, and then the flat-pressure cylinder 16 pushes the flat-pressure cooling head 17 to press down the hot melt adhesive in the badminton core, so that the high-temperature hot melt adhesive is quickly flattened and cooled and solidified. After the flat-pressure cooling is completed, the flat-pressure cylinder 16 pulls the flat-pressure cooling head 17 upward to reset; the motor 10 drives the turntable divider 11 to run through the belt, and then drives the turntable 12 to rotate counterclockwise by 60° again, so that the badminton after glue injection moves to the first fan cooling station 21. The wind blown by the cooling fan 20 of the first fan cooling station 21 is for air cooling and cooling the glue in the badminton core. The motor 10 again passes through the turntable divider 11 1 pushes the turntable 12 to rotate counterclockwise by 60°, so that the badminton after the initial air cooling moves to the second fan cooling station 22, and the wind blown by the cooling fan 20 of the second fan cooling station 22 is used for the secondary air cooling of the glue in the badminton core; the motor 10 drives the turntable divider 11 to operate through the belt, and then pushes the turntable 12 to rotate counterclockwise by another 60°, so that the badminton after the glue injection moves to the unloading station 23; at the unloading station 23, the unloading cylinder 24 pushes the unloading push rod 25 upward to push the badminton out of the sleeve seat of the unloading station 23, and drops it into the unloading trough 26 for unloading, so that the badminton completes the weight increase and repair, and enters the subsequent process. Example 2

[0045] The difference between this embodiment and Embodiment 1 lies in that: the blanking unit further includes a blowing nozzle and a blanking chute 26. The blowing nozzle is placed on the upper rack of the sleeve seat at the blanking station 23, and its blowing direction is towards the direction of the blanking chute 26. The blowing nozzle is connected to the PLC programmable controller through a blowing solenoid valve, and the PLC programmable controller controls the operation of the blowing nozzle through the blowing solenoid valve. During blanking, when the blanking cylinder 24 drives the blanking ejector rod 25 to move upward to lift the badminton in the sleeve seat at the blanking station 23, the blowing solenoid valve opens to introduce compressed air into the blowing nozzle and blows it onto the blanking badminton, blowing the blanking badminton into the blanking chute 26.

[0046] The present invention can realize the simultaneous melting of glue, quantitative injection of glue, and cooling and flat pressing, which are set by the human-machine interface and automatically controlled by the PLC programmable controller, thereby reducing the manufacturing process steps of badminton and reducing the number of workers. The hot melt adhesive of the present invention uses a highly viscous and environmentally friendly EVA material, which can be recycled without production loss and has extremely low costs. At the same time, the injection pump designed in the present invention quantitatively discharges glue, with high stability and high consistency of the glue volume; the designed cold water circulation flat pressing head can shorten the curing time of the hot melt adhesive from 10 seconds to 3 seconds, and the glue surface of the ball core after curing is flat, improving the work efficiency, so that the badminton with weight correction can quickly enter the subsequent process.

[0047] In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A hot-melt adhesive weight-increasing machine for badminton, characterized in that: It includes a turntable and a feeding unit, a glue injection unit, a flat pressing and cooling unit, a fan cooling unit, and a discharging unit arranged in sequence around the turntable. The turntable is used to carry multiple badminton balls and rotate. The feeding unit is used to feed badminton balls onto the turntable. The feeding unit includes a feeding trough, a feeding ball cylinder, a feeding air cylinder, a pneumatic claw, a guiding groove, a pre-positioning frame, a ball pressing air cylinder, and a badminton ball pressing head. At the discharge port of the feeding ball cylinder, there is a pneumatic claw driven by the feeding air cylinder. The pneumatic claw is used to clamp the badminton ball at the discharge port of the feeding ball cylinder and send it to the guiding groove. The discharging direction of the guiding groove faces the positioning through hole of the pre-positioning frame. The badminton ball pressing head is installed on the piston rod of the ball pressing air cylinder and is used to press the badminton ball in the positioning through hole of the pre-positioning frame into the sleeve seat of the turntable. The feeding ball cylinder is mainly composed of a cylindrical feeding section and a conical discharging section. One end of the cylindrical feeding section is the feeding port, and the other end is connected to one end of the conical discharging section. The other end of the conical discharging section is the discharge port. The diameter of the feeding port is larger than the skirt diameter of the badminton ball, and the diameter of the discharge port is slightly smaller than the skirt diameter of the badminton ball. The pre-positioning frame is made with a positioning through hole for supporting the badminton ball, and the diameter of the positioning through hole is smaller than the skirt diameter of the badminton ball. The glue injection unit is used to inject hot melt glue at the ball core of the badminton ball on the turntable. The hot melt glue uses a highly viscous environmentally friendly EVA material. The glue injection unit includes a glue melting cylinder, a glue melting heating coil, a three-way base, a glue pump air cylinder, a hot melt glue pump, and a glue outlet nozzle. The inside of the glue melting cylinder is connected to the pump chamber of the hot melt glue pump through the three-way base, and the glue melting cylinder is sleeved with a glue melting heating coil. The flat pressing and cooling unit presses down and cools the hot melt glue in the ball core of the badminton ball through the flat pressing and cooling head inside the unit, and performs flat pressing and curing operations on the hot melt glue. The flat pressing and cooling unit includes a flat pressing air cylinder, a fixed seat, a flat pressing and cooling head, a cooling circulating water pipe, and a cooling water chiller. The fan cooling unit cools the hot melt glue again after flat pressing and curing operations through the cooling fan inside the unit. The discharging unit is used to discharge the badminton balls that have been weighted with hot melt glue and cooled from the turntable.

2. The hot-melt adhesive weight-increasing machine for badminton according to claim 1, wherein: The feeding trough is inclined, and the discharging direction of the feeding trough faces the feeding ball cylinder. The guiding groove is inclined.

3. The hot melt adhesive weight increasing machine for badminton according to claim 1, wherein: The glue injection unit moves up and down reciprocally driven by a glue injection air cylinder. The glue melting cylinder and the hot melt glue pump are both installed on the three-way base. The inside of the glue melting cylinder contains hot melt glue. One end of the hot melt glue pump is connected to a glue pump air cylinder for controlling the inflow and outflow of hot melt glue in the pump, and the other end is provided with a glue outlet nozzle.

4. The hot melt adhesive weight increasing machine for badminton according to claim 3, characterized in that: The glue pump cylinder is connected to the glue pump mandrel. The tail of the glue pump mandrel is inserted into the pump cavity of the hot melt glue pump, and the size of the pump cavity matches that of the glue pump mandrel. In the pump body of the hot melt glue pump, a heating rod cavity and a hot melt glue channel are respectively formed. A glue pump heating rod for maintaining the temperature of the pump body is arranged in the heating rod cavity, and a pump body one-way valve for opening and closing the hot melt glue channel is arranged in the hot melt glue channel. The hot melt glue channel communicates the pump cavity of the hot melt glue pump with the inner cavity of the tee base. The glue outlet nozzle has a fluid inlet channel and a fluid outlet channel, and a glue nozzle one-way valve for opening and closing the fluid inlet channel is arranged in the fluid inlet channel. Both the pump body one-way valve and the glue nozzle one-way valve include a one-way valve steel ball and a spring.

5. The hot-melt adhesive weight-increasing machine for badminton according to claim 1, characterized in that: The fixed seat is installed on the piston rod of the flat pressing cylinder, the flat pressing cooling head is installed on the fixed seat, and the inner cavity of the flat pressing cooling head is communicated with the cooling water chiller through a cooling circulation water pipe.

6. The hot melt adhesive weight increasing machine for badminton according to claim 5, wherein: The flat pressing cooling head includes a body. The lower end face of the body is adapted to the ball core of the badminton. The body has an inner cavity, and a water inlet conduit is arranged in the inner cavity. The upper part of the body has a circulating water inlet joint and a circulating water outlet joint. The circulating water inlet joint is communicated with the inner cavity of the body through the water inlet conduit, and the circulating water outlet joint is directly communicated with the inner cavity of the body.

7. The hot melt adhesive weight increasing machine for badminton according to claim 1, characterized in that: The blanking unit includes a blanking cylinder, a blanking ejector rod and a blanking chute. One end of the blanking ejector rod is connected to the blanking cylinder, and the other end faces the sleeve seat of the turntable. The blanking chute is inclined and installed at the blanking station of the turntable.

8. The hot-melt adhesive weight-increasing machine for badminton according to claim 1, wherein: The turntable sequentially forms a feeding station, a glue injection station, a flat pressing cooling station, a first fan cooling station, a second fan cooling station and a blanking station along its rotation direction. Sleeve seats for fixing the badminton are respectively arranged at the feeding station, the glue injection station, the flat pressing cooling station, the first fan cooling station, the second fan cooling station and the blanking station.

9. The hot melt adhesive weight increasing machine for badminton according to claim 1, wherein: It further includes a control unit, which is mainly composed of a touch screen controller, an operation control box and an electrical control box. The touch screen controller is installed on the operation control box and is connected to the PLC programmer arranged in the electrical control box. An electrical control circuit and a PLC programmer are arranged in the electrical control box. The electrical control circuit is used to control the on-off of the power supply of the whole machine and the operation of the cooling fan and the cooling water chiller. The first control end of the PLC programmer is respectively connected to the feeding cylinder, the ball pressing cylinder, the glue injection cylinder, the glue pump cylinder, the flat pressing cylinder and the blanking cylinder through electromagnetic valves. The second control end is respectively connected to the melt glue heating coil and the glue pump heating rod through a temperature controller. The third control end is connected to the motor. The output end of the motor is connected to the turntable divider through a belt. The turntable divider is connected to the turntable and drives the turntable to rotate.

10. The hot-melt adhesive weight-increasing machine for badminton according to claim 1, characterized in that: The blanking unit further includes a blowing nozzle and a blanking chute. The blowing nozzle is placed on the upper rack of the sleeve seat at the blanking station, and its blowing direction is towards the blanking chute.

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