Extrusion system and process for badminton racket processing

Abstract

The invention relates to the field of badminton racket processing, and particularly discloses an extrusion system and process for badminton racket processing. A cutting device; a bending device; the oil injection device is provided with a plugging piece used for abutting against the end of the plastic racket frame rod and an oil injection pipe penetrating through the plugging piece and communicating with the plastic racket frame rod; the clamping device is used for fixing the plugging piece and the end part of the plastic racket frame rod; wherein the number of the oil injection devices and the number of the clamping devices are both two, and control valves are arranged in the oil injection pipes; when the plugging piece abuts against the two ends of the plastic racket frame rod, the plastic racket frame rod is sealed and contains oil. The plastic racket frame rod bending device has the advantages that when the plastic racket frame rod is bent, oil liquid is injected into the plastic racket frame rod, so that heat exchange is conducted between the oil liquid and the plastic racket frame rod, the temperatures of multiple positions in the plastic racket frame rod are kept consistent through injection of the oil liquid, and the bending quality is improved.

Description

Technical Field

[0001] The present application relates to the field of badminton racket processing, and in particular to an extrusion system and process for badminton racket processing. Background Art

[0002] At present, when a badminton racket is extruded, the material of the racket frame of the badminton racket needs to be extruded outwardly through an extruder, and then the obtained racket frame rod is bent to obtain the badminton racket.

[0003] In the extrusion process of a badminton racket, bending is essential. Generally, a pipe bending machine is used to directly bend the racket frame to obtain the badminton racket frame.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0005] When bending the racket frame rod directly using a tube bender, during the bending process, the bending of the racket frame rod will cause friction with the tube bender, and the bending of the racket frame rod itself will cause the temperature of the racket frame rod to change. Therefore, it is difficult to ensure that the racket frame rod is bent at a constant temperature. When the racket frame rod is bent, the temperature of the racket frame rod will become higher and higher, and the racket frame rod will partially rub against the tube bender while partially not rub against the tube bender, resulting in uneven temperature distribution of the racket frame rod and different flexibility of different positions of the racket frame rod, which can easily affect the quality of the bending of the racket frame rod. Summary of the invention

[0006] In order to improve the problem that the temperature distribution of the plastic racket frame is uneven and the flexibility of different positions of the plastic racket frame is different, which easily affects the bending quality of the plastic racket frame, the present application provides an extrusion system and process for badminton racket processing.

[0007] The present application provides an extrusion system and process for processing a badminton racket, which adopts the following technical solutions:

[0008] An extrusion system for processing a badminton racket comprises: an extruder for extruding a tube body outward; the extruded tube body is cooled and shaped by a cooling device; a cutting device for cutting the tube body to obtain a plastic racket frame rod; a bending device for bending the plastic racket frame rod to form a circular racket frame; an oil injection device for forming a plugging piece for abutting against the end of the plastic racket frame rod and an oil injection pipe penetrating the plugging piece and communicating with the plastic racket frame rod; a clamping device for fixing the plugging piece to the end of the plastic racket frame rod; wherein the oil injection device and the clamping device are both provided with two groups, and a control valve is provided in the oil injection pipe; when the plugging piece is tightly abutted against the two ends of the plastic racket frame rod, the plastic racket frame rod is sealed and contains oil; after the oil injection device injects oil into the plastic racket frame rod, the bending device bends the plastic racket frame rod.

[0009] By adopting the above technical scheme, oil is added into the plastic racket frame rod by using an oil injection device, and the two ends of the plastic racket frame rod are sealed. Then, when there is oil in the plastic racket frame rod, the plastic racket frame rod is bent by using a bending device, so that the oil in the plastic racket frame rod can play a role in dissipating heat for the plastic racket frame rod during the bending process, preventing the plastic racket frame rod from contacting and rubbing with the bending device and heating up during bending, or preventing the plastic racket frame rod from being partially squeezed and heated up during bending, and better ensuring that the plastic racket frame rod maintains a relatively average and low temperature during bending, thereby avoiding the partial temperature increase of the plastic racket frame rod and the different temperatures of different positions of the plastic racket frame rod, thereby avoiding the situation that different mechanical properties of different positions during bending due to the temperature difference of the plastic racket frame rod are avoided, thereby improving the bending quality of the plastic racket frame rod, and better ensuring the bending uniformity and overall mechanical properties of the plastic racket frame rod after bending, thereby improving the quality of the badminton racket. In addition, since there is oil in the plastic racket frame rod, the oil is filled in the hollow plastic racket frame rod, and the oil is difficult to be compressed, it can also avoid the situation where part of the plastic racket frame rod is flattened when it is bent, thereby improving the yield rate of badminton rackets during production.

[0010] In other cases, due to the material limitation of the plastic racket frame rod, when the temperature of the plastic racket frame rod is low, it is easy to break or partially split when directly bent. Therefore, the plastic racket frame rod needs to be bent at a higher temperature to improve the flexibility of the plastic racket frame rod. At this time, adding oil with a higher temperature to the plastic racket frame rod can make the plastic racket frame rod heat up evenly, so that the temperature of the plastic racket frame rod is uniform, and the temperature and flexibility of each part of the plastic racket frame rod are uniform. In addition, during the bending process, some positions of the plastic racket frame rod will heat up, and the oil can also be used to perform heat exchange in the plastic racket frame rod to quickly restore the temperature of each position of the plastic racket frame rod to be uniform, so that the temperature of each position of the plastic racket frame rod is kept the same at all times during bending, thereby improving the bending quality of the plastic racket frame rod.

[0011] Optionally, the oil injection device also includes: a first pump body component, a second pump body component and a connecting component; the connecting component is used to connect the first pump body component and the second pump body component to the oil injection pipe; the first pump body component is used to add oil to the plastic racket frame rod through the oil injection pipe; the second pump body component is used to add external air to the plastic racket frame rod through the oil injection pipe.

[0012] By adopting the above technical solution, the first pump body component adds oil into the plastic racket frame rod through the oil injection pipe, thereby improving the quality of the plastic racket frame rod. The second pump body component adds air into the plastic racket frame rod through the oil injection pipe, thereby drying the residual oil in the plastic racket frame rod, thereby preventing the badminton racket from being easily damaged due to the oil in the plastic racket frame rod when the plastic racket frame rod is made into a badminton racket, thereby improving the quality of the badminton racket.

[0013] Optionally, the oil filling device also includes an oil tank, and the first pump body component is connected to the oil tank; when the bending device bends the plastic racket frame rod, the plastic racket frame rod is sealed and contains oil; when the bending device stops bending the plastic racket frame rod, one of the first pump body components adds oil to the plastic racket frame rod, and the other first pump body component draws the oil out of the plastic racket frame rod to allow the oil to circulate in the plastic racket frame rod.

[0014] By adopting the above technical solution, when the bending device bends the plastic racket frame rod, the oil in the plastic racket frame rod is sealed, so the oil can provide sufficient supporting force to prevent the plastic racket frame rod from being flattened. When the bending device stops bending the plastic racket frame rod, the oil in the plastic racket frame rod is discharged outwards and injected inwards, so that the oil that has been heated in the plastic racket frame rod is discharged outwards and the oil that has not been heated is re-injected, so as to better keep the temperature of the plastic racket frame rod at a suitable temperature for bending, thereby improving product quality.

[0015] Optionally, a plurality of partitions and a plurality of heat exchange elements are provided in the oil tank; the plurality of partitions are used to divide the oil tank into a plurality of containing areas; the heat exchange elements are used to make the oil temperatures in the plurality of containing areas different; the oil filling device also includes an oil extraction element, and the oil extraction element is used to connect the first pump body component structure with any one of the plurality of containing areas; when the oil circulates in the plastic racket frame rod, the oil extraction element is used to connect the first pump body component with the plurality of containing areas in sequence, and the oil temperatures in the plurality of containing areas are connected with the first pump body component in a gradually decreasing order.

[0016] By adopting the above technical scheme, when bending, if the temperature of the plastic racket frame rod is high, the temperature of the oil can be gradually lowered when the oil is added to the plastic racket frame rod. For example, the ideal temperature of the plastic racket frame rod is 200°C, and the actual temperature of the plastic racket frame rod is 300°C. Therefore, oil with a temperature of 280°C is first added to cool the plastic racket frame rod, and then oil with a temperature of 250°C and oil with a temperature of 230°C are added, and finally oil with a temperature of 200°C is added, thereby avoiding the situation where the plastic racket frame rod expands and contracts due to excessive cooling, and better ensuring the quality of the plastic racket frame rod when bending.

[0017] Optionally, the clamping device includes a mounting member arranged on the oil filling tube and used to form a cavity, the oil filling tube and the inner wall surface of the cavity form an insertion gap for the plastic racket frame rod to be inserted; the inner wall surface of the cavity is larger than the outer wall surface of the plastic racket frame rod; a telescopic member is arranged on the inner wall surface of the cavity, and the telescopic member is used to press against the outer wall surface of the plastic racket frame rod to fix the plastic racket frame rod relative to the oil filling tube.

[0018] By adopting the above technical solution, the oil filling tube is fixed to the plastic racket frame rod, thereby preventing bending. Since the plastic racket frame rod tends to be squeezed and flattened, the pressure on the oil in the plastic racket frame rod increases, which can easily cause the oil filling tube to be squeezed outward and detached from the plastic racket frame rod under the action of pressure. For this reason, a telescopic piece is used to keep the oil filling tube and the plastic racket frame rod fixed, so as to better ensure stability during use.

[0019] Optionally, the telescopic member includes an elastic membrane for forming an elastic chamber and a third pump body component for adding liquid into the elastic membrane; the elastic membrane is arranged in the insertion gap, and after the third pump body component adds liquid into the elastic chamber, the elastic membrane expands to completely press against the plastic racket frame rod.

[0020] By adopting the above technical solution, the expansion of the elastic membrane can completely fill the insertion gap, so that when it comes to plastic racket frame rods with different diameters, the elastic membrane can also extend into the gap between the oil filling tube and the plastic racket frame rod, thereby better ensuring that the plastic racket frame rod is in a sealed state and improving the stability during use.

[0021] Optionally, a retaining ring is further provided in the insertion gap, and the retaining ring and the elastic membrane are used to seal the insertion gap after the plastic racket frame rod is inserted into the insertion gap.

[0022] By adopting the above technical solution, the retaining ring is provided to allow the elastic membrane to expand in a closed space, thereby improving the effect of the elastic membrane completely filling the insertion gap and ensuring the sealing of the insertion gap.

[0023] Optionally, a plurality of anti-slip protrusions are formed on the elastic membrane.

[0024] By adopting the above technical solution, the anti-skid protrusions on the elastic film contact the outer wall surface of the plastic racket frame rod, which can increase the friction between the two and improve the stability of the plastic racket frame rod and the oil filling tube being fixed together.

[0025] Optionally, the bending device includes: two movable ends for clamping the plastic racket frame rod and a fixed end in contact with the middle of the plastic racket frame rod; and the oiling device is connected to the movable ends.

[0026] The invention discloses an extrusion process for processing a badminton racket, comprising: extruding a tube body outwards through an extruder, cooling and shaping the extruded tube body through a cooling device; cutting the tube body through a cutting device to obtain a plastic racket frame rod; placing the plastic racket frame rod on a bending device through a manipulator, sealing and fixing both ends of the plastic racket frame rod through an oil injection device having a sealing piece and an oil injection pipe, and injecting oil into the plastic racket frame rod; fixing the sealing piece and the end of the plastic racket frame rod through a clamping device; bending the plastic racket frame rod through a bending device to form a circular racket frame; inserting both ends of the plastic racket frame rod into two openings of a three-way connecting buckle, and inserting a hand-held rod into the other end of the three-way connecting buckle to obtain an overall frame of the badminton racket; threading the overall frame of the badminton racket to obtain the badminton racket.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When bending the plastic racket frame rod, inject oil into the plastic racket frame rod, so that the oil will exchange heat with the plastic racket frame rod, thereby maintaining the temperature of multiple positions in the plastic racket frame rod consistent through the injection of oil, thereby improving the bending quality;

[0029] 2. After the oil is added into the plastic racket frame rod, a sealing member is used to seal the plastic racket frame rod, so that the oil in the plastic racket frame rod plays a role of supporting the plastic racket frame rod, preventing the plastic racket frame rod from being easily flattened when being bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0031] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structures of the bending device, the liquid injection device and the clamping device;

[0032] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the fuel tank and some surrounding parts;

[0033] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the oil tank, the first pump body component and the second pump body component;

[0034] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure inside the fuel tank and the structure of some surrounding parts;

[0035] Figure 6 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the partition plate and some surrounding parts;

[0036] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the clamping device, the oil injection device and the plastic racket frame rod;

[0037] Figure 8 It is a structural diagram of a part of the embodiment, mainly showing Figure 7 The local cross-sectional structure of

[0038] Fig. 9 yes Figure 8 A magnified view of part A;

[0039] Fig.10 It is a structural schematic diagram of a part of an embodiment, mainly showing a cross-sectional structure of an elastic membrane when it is expanded, wherein a dark-filled portion is an elastic chamber;

[0040] Fig.11 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of a badminton racket;

[0041] Fig.12 yes Fig.11 A magnified view of part B;

[0042] Fig.13 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the process flow chart.

[0043] Reference numerals:

[0044] 1. Extruder; 2. Cooling device; 3. Cutting device; 4. Bending device; 41. Moving end; 42. Fixed end; 5. Oil filling device; 51. Oil filling pipe; 52. First pump body component; 53. Second pump body component; 54. Connecting component; 541. First pipeline; 542. Second pipeline; 55. Oil tank; 551. Partition; 552. Accommodating area; 56. Flow guide tube; 6. Clamping device; 61. Annular tube; 611. Insertion gap; 62. Elastic membrane; 63. Third pump body component; 64. Retaining ring; 7. Plastic racket frame rod; 8. Three-way connecting buckle; 81. Arc edge; 9. Hand-held rod. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-13 This application is described in further detail.

[0046] The embodiment of the present application discloses an extrusion system for processing a badminton racket.

[0047] Example 1

[0048] An extrusion system for processing a badminton racket comprises: an extruder 1, a cooling device 2, a cutting device 3, a bending device 4, an oiling device 5, a clamping device 6 and a control valve.

[0049] The extruder 1 can extrude a tube body outward using recycled plastic as a raw material. Using recycled plastic as a raw material is beneficial to improving the recycling of plastics and saving social resources. In addition, the extruder can also extrude a tube body outward using aluminum alloy as a raw material, or extrude a carbon fiber tube outward using carbon fiber as a raw material. The tube body extruded outward is cooled and shaped by a cooling device 2. The cooling device 2 adopts a water-cooled device, which will not be elaborated in detail. The cutting device 3 is used to cut the tube body made of plastic as a raw material to obtain a plastic racket frame rod 7, and the plastic racket frame rod 7 is the racket frame of a badminton racket. Therefore, the plastic racket frame rod 7 of the present application refers to one prepared using plastic as a raw material. In some other schemes, the racket frame of a badminton racket can also be produced using aluminum alloy or carbon fiber as a raw material. The cutting device 3 adopts a cutting saw. The bending device 4 is used to bend the plastic racket frame rod 7 to form a circular racket frame or to bend the racket frame of a badminton racket made of carbon fiber and aluminum alloy as raw materials. The bending device 4 adopts a pipe bender. The oil filling device 5 is formed with a plugging member for abutting against the end of the plastic racket frame rod 7 and an oil filling tube 51 penetrating the plugging member and communicating with the plastic racket frame rod 7. In this embodiment, the plugging member is a plate body arranged on the oil filling tube 51, the plugging member is tightly abutted against the end of the plastic racket frame rod 7, and the oil filling tube 51 is inserted into the plastic racket frame rod 7, thereby sealing the space in the plastic racket frame rod 7. The clamping device 6 is used to fix the plugging member and the end of the plastic racket frame rod 7. In this embodiment, the clamping device 6 adopts a pneumatic clamping jaw, two pneumatic clamping jaws are provided, and the two pneumatic clamping jaws are fixed together, one of the pneumatic clamping jaws clamps one end of the plastic racket frame rod 7, and the other pneumatic clamping jaw clamps the oil filling tube 51, thereby achieving the fixation of the oil filling tube 51, the plugging member and the plastic racket frame rod 7. The oil injection device 5 and the clamping device 6 are both provided with two groups, and a control valve is provided in the oil injection pipe 51. When the sealing member is pressed against the two ends of the plastic racket frame rod 7, the plastic racket frame rod 7 is sealed and contains oil. The oil injection pipe 51 is externally connected to an oil injection device, so that the oil injection device 5 injects oil into the plastic racket frame rod 7, and after the oil injection device 5 injects oil into the plastic racket frame rod 7, the bending device 4 bends the plastic racket frame rod 7.

[0050] In some cases, due to the limitation of the material of the plastic racket frame rod 7, the plastic racket frame rod 7 needs to be bent at a relatively low temperature, and the oil injection device 5 adds low-temperature oil into the plastic racket frame rod 7. The oil in the plastic racket frame rod 7 can play a role in dissipating heat from the plastic racket frame rod 7 during the bending process, preventing the plastic racket frame rod 7 from contacting and rubbing with the bending device 4 to increase temperature when bending, or preventing the plastic racket frame rod 7 from being partially squeezed and heated when bending, and better ensuring that the plastic racket frame rod 7 is kept at a relatively uniform and low temperature when bending, thereby avoiding the temperature of the plastic racket frame rod 7 Partial temperature rise, the situation where different positions of the plastic racket frame rod 7 have different temperatures, and thus avoiding the situation where different positions have different mechanical properties when bending due to the temperature difference of the plastic racket frame rod 7, thereby improving the bending quality of the plastic racket frame rod 7, and better ensuring the bending uniformity and overall mechanical properties of the plastic racket frame rod 7 after bending, and improving the quality of the badminton racket.

[0051] In other cases, due to the material limitation of the plastic racket frame rod 7, when the temperature of the plastic racket frame rod 7 is low, it is easy to break or partially split when directly bent. Therefore, the plastic racket frame rod 7 needs to be bent at a higher temperature to improve the flexibility of the plastic racket frame rod 7. At this time, adding oil with a higher temperature to the plastic racket frame rod 7 can make the plastic racket frame rod 7 evenly heated, so that the temperature of the plastic racket frame rod 7 is uniform, and the temperature and flexibility of each part of the plastic racket frame rod 7 are uniform. In addition, during the bending process, some positions of the plastic racket frame rod 7 will be heated, and the oil can also be used to perform heat exchange in the plastic racket frame rod 7 to quickly restore the temperature of each position of the plastic racket frame rod 7 to be uniform, so that the temperature of each position of the plastic racket frame rod 7 is kept the same at all times during bending, thereby improving the bending quality of the plastic racket frame rod 7.

[0052] In addition, the oil is added into the plastic racket frame rod 7 by using the oil injection device 5, and the two ends of the plastic racket frame rod 7 are sealed, and then the plastic racket frame rod 7 is bent by using the bending device 4 when the oil exists in the plastic racket frame rod 7. Since the oil exists in the plastic racket frame rod 7, the oil is filled in the hollow plastic racket frame rod 7, and the oil is difficult to be compressed. Therefore, it can also avoid the situation that the plastic racket frame rod 7 is partially flattened when being bent, thereby improving the yield rate of badminton rackets during production.

[0053] Example 2

[0054] The difference between Example 2 and Example 1 is that:

[0055] The oil injection device 5 further includes: a first pump body component 52, a second pump body component 53 and a connecting component 54. The connecting component 54 is used to connect the first pump body component 52 and the second pump body component 53 to the oil injection pipe 51. The connecting component 54 includes a first pipeline 541 and a second pipeline 542. The first pipeline 541 and the second pipeline 542 are both connected to the oil injection pipe 51, and the first pipeline 541 and the second pipeline 542 are both provided with solenoid valves for controlling the opening and closing of the first pipeline 541 and the second pipeline 542. The first pump body component 52 is connected to the first pipeline 541, and the second pump body component 53 is connected to the second pipeline 542. The first pipeline 541 and the second pipeline 542 are both hoses, and the first pump body component 52 and the second pump body component 53 are both arranged on the ground or at a position close to the ground. The first pipeline 541 is externally connected to an oil storage device, so that the first pump body component 52 is used to add oil to the plastic racket frame rod 7 through the oil injection pipe 51. The second pipeline 542 is externally connected to the outside air, so that the second pump body component 53 is used to add the outside air into the plastic racket frame rod 7 through the oil injection pipe 51. The first pump body component 52 adds oil into the plastic racket frame rod 7 through the oil injection pipe 51, which plays a role in improving the quality of the plastic racket frame rod 7. The second pump body component 53 adds air into the plastic racket frame rod 7 through the oil injection pipe 51, which plays a role in drying the residual oil in the plastic racket frame rod 7, preventing the badminton racket from being easily damaged due to the partial oil in the plastic racket frame rod 7 when the plastic racket frame rod 7 is made into a badminton racket, thereby improving the quality of the badminton racket.

[0056] Specifically, the oil filling device 5 further includes an oil tank 55, and the first pipeline 541 is connected to the oil tank 55, so that the first pipeline 541 is connected to an external oil storage device and the first pump body component 52 is connected to the oil tank 55. When the bending device 4 bends the plastic racket frame rod 7, the control valve closes the oil filling pipe 51, so that the plastic racket frame rod 7 is sealed and contains oil. When the bending device 4 stops bending the plastic racket frame rod 7, the control valve opens, and one of the first pump body components 52 adds oil to the plastic racket frame rod 7, and the other first pump body component 52 draws out the oil in the plastic racket frame rod 7, so that the oil circulates in the plastic racket frame rod 7. After the bending is completed, the two first pump body components 52 both suck the oil in the plastic racket frame rod 7 back into the oil tank 55, and the two second pump body components 53 both add air to the plastic racket frame rod 7, so that all the oil is sucked back into the oil tank 55.

[0057] When the bending device 4 stops bending the plastic racket frame rod 7, the oil in the plastic racket frame rod 7 is discharged outward and injected inward, so that the oil that has been heated in the plastic racket frame rod 7 is discharged outward and the oil that has not been heated is injected again, so as to better keep the temperature of the plastic racket frame rod 7 at a suitable temperature for bending, thereby improving the product quality. The bending device can be configured to perform the bending process of the plastic racket frame rod 7 in multiple steps, so that the oil can circulate in the plastic racket frame rod 7 to keep the temperature of the plastic racket frame rod 7 at all times.

[0058] Since the temperature of the oil in the oil tank 55 is constant, when the temperature of the plastic racket frame rod 7 is high during the bending process, after the oil is added to the plastic racket frame rod 7, there will be a large temperature difference between the two, which may easily cause serious thermal expansion and contraction of the plastic racket frame rod 7, making it difficult to ensure a better bending effect. Therefore, in some other schemes, in order to solve the above-mentioned problems, a plurality of partitions 551 and a plurality of heat exchangers are provided in the oil tank 55 of this scheme. The heat exchanger adopts a heating device for heating the liquid, which is a prior art and will not be described. The plurality of partitions 551 are used to divide the oil tank 55 into a plurality of accommodating areas 552, and a plurality of heat exchangers are provided, so the plurality of heat exchangers are used to make the oil temperatures in the plurality of accommodating areas 552 different, that is, the heat exchanger of each accommodating area 552 heats the oil in the accommodating area 552 at different temperatures to make the temperatures different.

[0059] Specifically, the oil filling device 5 also includes an oil extraction member, which is used to connect the first pump body component 52 structure with any one of the multiple accommodating areas 552; when the oil circulates in the plastic racket frame rod 7, the oil extraction member is used to connect the first pump body component 52 with the multiple accommodating areas 552 in sequence, and the oil temperature in the multiple accommodating areas 552 is connected to the first pump body component 52 in a gradually decreasing order. During bending, if the temperature of the plastic racket frame rod 7 is relatively high, the temperature of the oil can be gradually lowered when the oil is added to the plastic racket frame rod 7. For example, the ideal temperature of the plastic racket frame rod 7 is 200° C., and the actual temperature of the plastic racket frame rod 7 is 300° C. Therefore, oil at a temperature of 280° C. is first added to cool the plastic racket frame rod 7, and then oil at a temperature of 250° C. and oil at 230° C. are added, and finally oil at 200° C. is added, thereby avoiding the situation where the plastic racket frame rod 7 expands and contracts due to excessive cooling, and better ensuring the quality of the plastic racket frame rod 7 during bending.

[0060] More specifically, the liquid taking part includes a plurality of guide tubes 56 for guiding the oil, each of which is provided with a solenoid valve, and the plurality of guide tubes 56 are connected to the first pump body component 52. Thus, the oil in the highest temperature accommodation area 552 can be added to the plastic racket frame rod 7 through the solenoid valve, and then the oil in the second highest temperature accommodation area 552 can be added to the plastic racket frame rod 7, and then the oil in the second highest temperature accommodation area 552 can be added to the plastic racket frame rod 7, so as to gradually reduce the temperature, thereby avoiding obvious thermal expansion and contraction, and better ensuring the quality of the plastic racket frame rod 7 during the bending process.

[0061] In some other embodiments, the clamping device 6 includes a mounting member disposed on the oil filling tube 51 and used to form a cavity, and the oil filling tube 51 and the inner wall surface of the cavity form an insertion gap 611 for the plastic racket frame rod 7 to be inserted. The mounting member is a circular ring tube 61, which is fixed to the oil filling tube 51, and the end of the circular ring tube 61 is closed, and the end of the circular ring tube 61 is fixed to the oil filling tube 51. The inner wall surface of the cavity is larger than the outer wall surface of the plastic racket frame rod 7, and a telescopic member is disposed on the inner wall surface of the cavity, and the telescopic member is used to press against the outer wall surface of the plastic racket frame rod 7 to fix the plastic racket frame rod 7 relative to the oil filling tube 51. The telescopic member is one of a clamping claw and an electric rod. The oil filling tube 51 is fixed to the plastic racket frame rod 7 to prevent bending. Due to the tendency of squeezing and flattening the plastic racket frame rod 7, the pressure on the oil in the plastic racket frame rod 7 increases, which can easily cause the oil filling tube 51 to be squeezed outward and separated from the plastic racket frame rod 7.

[0062] More specifically, the telescopic member includes an elastic membrane 62 for forming an elastic chamber and a third pump body component 63 for adding liquid into the elastic membrane 62. The elastic membrane 62 is a membrane body of rubber material. The elastic membrane 62 is arranged in the insertion gap 611. After the third pump body component 63 adds liquid into the elastic chamber, the elastic membrane 62 expands to completely abut against the plastic racket frame rod 7. A retaining ring 64 is also arranged in the insertion gap 611. The retaining ring 64 and the elastic membrane 62 are used to seal the insertion gap 611 after the plastic racket frame rod 7 is inserted into the insertion gap 611. The retaining ring 64 is located on an end of the annular tube 61 away from the closed end, so that the retaining ring 64 will close the insertion gap 611, so that the elastic membrane 62 is better filled in the insertion gap 611 after expansion. The elastic membrane 62 will also have a greater supporting force after expansion. The elastic membrane 62 can not only fix the plastic racket frame rod 7 with the oil injection tube 51, but also increase the sealing between the oil injection tube 51 and the plastic racket frame rod 7. In this case, the blocking member is the outer wall surface of the elastic membrane 62 .

[0063] A plurality of anti-skid protrusions are formed on the elastic film 62. The anti-skid protrusions are formed by the uneven surface of the elastic film 62. The anti-skid protrusions on the elastic film 62 contact with the outer surface of the plastic racket frame rod 7, which can increase the friction between the two and improve the stability of the plastic racket frame rod 7 and the oil filling tube 51 being fixed together.

[0064] Example 3

[0065] In this embodiment, the bending device 4 includes: two movable ends 41 for clamping the plastic racket frame rod 7 and a fixed end 42 in contact with the middle of the plastic racket frame rod 7. The movable end 41 and the fixed end 42 both adopt the existing technology, wherein the movable end 41 is used to clamp the end of the plastic racket frame rod 7 and drive the plastic racket frame rod 7 to move, and the fixed end 42 is used to contact the middle of the plastic racket frame rod 7, so that the plastic racket frame rod 7 is bent along the fixed end 42, thereby forming a badminton racket. Among them, the oil injection device 5 is connected to the movable end 41. Preferably, the annular tube 61 is fixed to the movable end 41, so that the oil injection tube 51 is fixed to the movable end 41, which better increases the convenience of the overall use process.

[0066] Example 4

[0067] This embodiment 4 provides a process for processing a badminton racket using an extrusion system for processing a badminton racket of one of the embodiments 1-3, the process comprising: extruding a tube body outwardly through an extruder 1, and cooling and shaping the extruded tube body through a cooling device 2; cutting the tube body through a cutting device 3 to obtain a plastic racket frame rod 7; placing the plastic racket frame rod 7 on a bending device 4 through a manipulator, sealing and fixing both ends of the plastic racket frame rod 7 through an oil injection device 5 having a sealing member and an oil injection pipe 51, and injecting oil into the plastic racket frame rod 7; fixing the sealing member and the end of the plastic racket frame rod 7 through a clamping device 6; bending the plastic racket frame rod 7 through the bending device 4 to form a circular racket frame; inserting both ends of the plastic racket frame rod 7 into two openings of a three-way connecting buckle 8, and inserting a hand-held rod 9 into the other end of the three-way connecting buckle 8 to obtain an overall frame of the badminton racket; threading the overall frame of the badminton racket to obtain the badminton racket. The three interfaces of the three-way connecting buckle 8 all have arc-shaped edges 81, so as to make the connection between the three-way connecting buckle 8 and the plastic racket frame rod 7 and the hand-held rod 9 smoother.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An extrusion system for badminton racket processing, characterized in that: include: An extruder extrude the tube outward; The tube extruded outward is cooled and shaped by a cooling device; A cutting device, used for cutting the tube body to obtain a plastic racket frame rod; A bending device, used for bending the plastic racket frame rod to form a circular racket frame; An oiling device, forming a plugging piece for abutting against the end of the plastic racket frame rod and an oiling pipe penetrating the plugging piece and communicating with the plastic racket frame rod; A clamping device, used to fix the blocking member to the end of the plastic racket frame rod; Wherein, the oil injection device and the clamping device are both provided with two groups, and a control valve is provided in the oil injection pipe; when the blocking member is pressed against the two ends of the plastic racket frame rod, the plastic racket frame rod is sealed and contains oil; After the oil injection device injects oil into the plastic racket frame rod, the bending device bends the plastic racket frame rod.

2. The badminton racket processing extrusion system according to claim 1, characterized in that: The oil injection device further comprises: a first pump body component, a second pump body component and a connecting component; The connecting member is used to connect the first pump body member and the second pump body member to the oil filling pipe; The first pump body component is used to add oil into the plastic racket frame rod through the oil filling pipe; the second pump body component is used to add external air into the plastic racket frame rod through the oil filling pipe.

3. The badminton racket processing extrusion system according to claim 2, characterized in that: The oil injection device further comprises an oil tank, and the first pump body component is in communication with the oil tank; When the bending device bends the plastic racket frame rod, the plastic racket frame rod is sealed and contains oil; When the bending device stops bending the plastic racket frame rod, one of the first pump body components adds oil into the plastic racket frame rod, and the other first pump body component pumps the oil out of the plastic racket frame rod to allow the oil to circulate in the plastic racket frame rod.

4. The badminton racket processing extrusion system according to claim 3, characterized in that: A plurality of partitions and a plurality of heat exchange elements are arranged in the oil tank; The plurality of partitions are used to divide the oil tank into a plurality of containing areas; the heat exchange element is used to make the oil temperatures in the plurality of containing areas different; The oil injection device further comprises an oil extractor, and the oil extractor is used to connect the first pump body component with any one of the plurality of accommodating areas; When the oil circulates in the plastic racket frame rod, the oil extractor is used to connect the first pump body component with the plurality of accommodating areas in sequence, and the oil temperatures in the plurality of accommodating areas are connected with the first pump body component in a gradually decreasing order.

5. The badminton racket processing extrusion system according to claim 4, characterized in that: The clamping device includes a mounting member disposed on the oil filling tube and used to form a cavity, wherein the oil filling tube and the inner wall surface of the cavity form an insertion gap for the plastic racket frame rod to be inserted; The inner wall of the cavity is larger than the outer wall of the plastic racket frame rod; A telescopic piece is arranged on the inner wall surface of the cavity, and the telescopic piece is used to press against the outer wall surface of the plastic racket frame rod to fix the plastic racket frame rod relative to the oil filling pipe.

6. The extrusion system for badminton racket processing according to claim 5, characterized in that: The telescopic member includes an elastic membrane for forming an elastic chamber and a third pump body member for adding liquid into the elastic membrane; The elastic membrane is arranged in the insertion gap. After the third pump body component adds liquid into the elastic chamber, the elastic membrane expands to completely press against the plastic racket frame rod.

7. The extrusion system for badminton racket processing according to claim 6, characterized in that: A retaining ring is also arranged in the insertion gap, and the retaining ring and the elastic film are used to seal the insertion gap after the plastic racket frame rod is inserted into the insertion gap.

8. An extrusion system for processing a badminton racket according to claim 6 or 7, characterized in that: A plurality of anti-slip protrusions are formed on the elastic film.

9. An extrusion system for badminton racket processing according to any one of claims 1 to 7, characterized in that: The bending device comprises: two movable ends for clamping the plastic racket frame rod and a fixed end in contact with the middle of the plastic racket frame rod; The oil injection device is connected to the mobile end.

10. An extrusion process for badminton racket processing, characterized in that: include: The tube body is extruded outwards by an extruder, and the extruded tube body is cooled and shaped by a cooling device; The tube body is cut by a cutting device to obtain a plastic racket frame rod; The plastic racket frame rod is placed on the bending device by a manipulator, and the two ends of the plastic racket frame rod are sealed and fixed by an oil injection device having a sealing member and an oil injection pipe, and oil is injected into the plastic racket frame rod; The blocking member is fixed to the end of the plastic racket frame rod by a clamping device; The plastic racket frame rod is bent by a bending device to form a circular racket frame; Insert the two ends of the plastic racket frame rod into the two openings of the three-way connecting buckle, and insert the hand-held rod into the other end of the three-way connecting buckle to obtain the overall frame of the badminton racket; The badminton racket is obtained by stringing the overall frame of the badminton racket.

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