Tennis machine injection molding part compression resistance detection device

Abstract

The invention discloses a tennis machine injection molding part compression resistance detection device, and relates to the technical field of tennis machine injection molding part compression resistance detection, the tennis machine injection molding part compression resistance detection device comprises a rack and a control box arranged in the rack, and an adjusting mechanism used for adjusting the impact direction of an injection molding part is arranged at the lower part in the rack; the upper side of the adjusting mechanism is provided with an impact mechanism for impacting the injection molding part, the upper side of the impact mechanism is provided with a clamping mechanism for clamping the injection molding part and performing transmittance detection, and the output end of a fifth motor rotates to drive a clamping plate to rotate by 180 degrees, so that the tennis machine injection molding part is driven to turn over; the two sides of the tennis machine injection molding part are impacted to detect the compression resistance of the two sides, and the outer side of the tennis machine injection molding part is impacted in different inclined directions for multiple times to simulate the tennis ball shooting direction, so that the performance and reliability of the tennis machine injection molding part in actual use are reflected more truly. And the effect of high accuracy of testing the compression resistance of the injection molded part of the tennis machine is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tennis machine injection molding part compression detection, in particular to a tennis machine injection molding part compression detection device. BACKGROUND

[0002] The tennis machine is a device for training or entertainment, and its main purpose is to launch a tennis ball to help the practitioner to carry out the ball hitting training, and the shell of the tennis machine is usually composed of plastic plates spliced by mold injection.

[0003] When the tennis ball launching device launches the tennis ball, the mechanical structure inside the launching device will exert a forward thrust or hitting force on the tennis ball, so that the tennis ball obtains enough speed and kinetic energy to fly to the target area. According to Newton's third law, the tennis ball will simultaneously generate a reaction force equal in size and opposite in direction to the internal structure of the launching device. This reaction force will be transmitted and dispersed through various parts inside the launching device, and a part of the force will act on the internal injection molding part, so that the injection molding part bears pressure. In order to prevent subsequent impact force from causing fatigue stress inside the injection molding part, resulting in gradual decline of the performance of the material, such as micro-cracks, deformation and other phenomena, the tennis machine injection molding part needs to be subjected to compression detection after production.

[0004] The existing tennis machine injection molding part compression test usually controls the pressure head to extrude one side of the tennis machine injection molding part. The extrusion force is the appropriate bearing pressure range of the injection molding part. After extrusion, the worker measures the deformation of the sample, and according to the applied pressure during extrusion, the compression performance index of the injection molding part is obtained, and it is judged whether it meets the design and use requirements. However, in use, the shell of the tennis machine is not only subjected to internal stress, but also may be hit by a high-speed flying tennis ball, thereby impacting the outside of the plastic shell of the tennis machine. The high-speed flying ball flies at different angles. Since the shapes of the tennis machine shells are different, when the tennis ball hits the surface of the tennis machine shell at different angles, the compression of the tennis machine shell is also different.

[0005] Therefore, it is necessary to design a tennis machine injection molding part compression detection device which can test the compression performance of both sides of the injection molding part at multiple angles. SUMMARY

[0006] The present application aims to provide a tennis machine injection molding part compression detection device to solve the problems in the background art.

[0007] In order to solve the above technical problems, the application provides the following technical scheme: a tennis machine injection molding part compression detection device, which comprises a rack and a control box arranged in the interior of the rack, an adjusting mechanism for adjusting the impact direction of the injection molding part is arranged below the interior of the rack, an impact mechanism for impacting the injection molding part is arranged on the upper side of the adjusting mechanism, a clamping mechanism for clamping the injection molding part and performing light transmittance detection is arranged on the upper side of the impact mechanism, a temperature control mechanism for simulating the use environment temperature of the injection molding part is arranged in the middle of the clamping mechanism, and a cooling mechanism for circulatingly cooling the water temperature is arranged on the upper side of the temperature control mechanism.

[0008] According to the above technical scheme, the adjusting mechanism comprises a support cylinder fixedly connected to the lower interior of the rack, a first motor fixedly connected to the lower side of the support cylinder, a first rotating cylinder fixedly connected to the output end of the first motor and penetrating the support cylinder, a second rotating cylinder rotationally connected to the upper side center of the support cylinder, the second rotating cylinder and the first rotating cylinder being connected through a rubber belt, a first U-shaped plate fixedly connected to the upper side of the second rotating cylinder, a second motor fixedly connected to the interior of the first U-shaped plate, a third rotating cylinder fixedly connected to the output end of the second motor and penetrating the first U-shaped plate, a fourth rotating cylinder rotationally connected to one side of the first U-shaped plate, and the third rotating cylinder and the fourth rotating cylinder being connected through a rubber belt.

[0009] According to the above technical scheme, the impact mechanism comprises a third U-shaped plate fixedly connected to the upper side of the second U-shaped plate, a positioning plate fixedly connected to the interior of the third U-shaped plate, a hydraulic cylinder fixedly connected to the lower side of the positioning plate, a sliding column fixedly connected to the output end of the hydraulic cylinder and penetrating the positioning plate, a first sliding plate fixedly connected to the outer side of the sliding column, a guide sliding column arranged on both sides of the first sliding plate and fixedly connected to the positioning plate and the third U-shaped plate, the first sliding plate being slidingly connected to the guide sliding column, a guide sliding cylinder fixedly connected to the upper side of the third U-shaped plate, one end of the sliding column penetrating the third U-shaped plate and slidingly connected to the guide sliding cylinder, a pressure sensor fixedly connected to the upper side of the sliding column, and a pressure head fixedly connected to the detection end of the pressure sensor.

[0010] According to the above technical scheme, the cooling mechanism comprises a water chiller fixedly connected to the upper side of the rack, and a first water pump fixedly connected to one side of the water chiller.

[0011] According to the technical scheme, the clamping mechanism comprises a fixed plate fixedly connected to the upper side of the inner part of the rack, a third motor fixedly connected to the lower side of the fixed plate, a second gear fixedly connected to the output end of the third motor and penetrating through the fixed plate, a first gear rotatably connected to the other side of the fixed plate, a first chain meshingly connected to the outer sides of the first gear and the second gear, a first connecting block fixedly connected to one side of the first chain and a second connecting block fixedly connected to the other side of the first chain, a lifting assembly arranged below the first connecting block and the second connecting block, and a detection assembly arranged on one side of the lifting assembly.

[0012] According to the technical scheme, the lifting assembly comprises a support frame fixedly connected to the lower side of the second connecting block, a slide rail fixedly connected to the lower side of the fixed plate, a plurality of slide blocks fixedly connected to the upper side of the support frame, the slide blocks being slidably connected to the slide rail, a fourth motor fixedly connected to the inner part of the support frame and a fourth gear fixedly connected to the output end of the fourth motor, a third gear rotatably connected to the lower side of the support frame, a second chain meshingly connected to the outer sides of the third gear and the fourth gear, and a second slide plate fixedly connected to the two ends of the second chain, the second slide plate being fixedly connected to one side of a fifth motor and the output end of the fifth motor penetrating through the second slide plate.

[0013] According to the technical scheme, the detection assembly comprises a clamping plate fixedly connected to the output end of the fifth motor, a light-emitting diode fixedly connected to the upper side of the clamping plate, and a projected light intensity sensor fixedly connected to the lower side of the clamping plate.

[0014] According to the technical scheme, the temperature control mechanism comprises an adjusting frame fixedly connected to the lower side of the fixed plate, a sixth motor fixedly connected to the inner part of the adjusting frame, a fan fixedly connected to the output end of the sixth motor, a wind deflector fixedly connected to the lower side of the adjusting frame, a cooling disc fixedly connected to the inner part of the wind deflector, and a plurality of ventilation grooves arranged in the inner part of the cooling disc, each of the ventilation grooves being fixedly connected to a heating pipe.

[0015] According to the technical scheme, the inner part of the cooling disc is provided with a water cavity, the water cavity is provided with a water inlet end and a water outlet end, the output end of the second water pump is connected to the input end of the water chiller unit in a pipeline mode, the input end of the second water pump is connected to the water outlet end of the water cavity in a pipeline mode, the input end of the first water pump is connected to the output end of the water chiller unit in a pipeline mode, and the output end of the first water pump is connected to the water inlet end of the water cavity in a pipeline mode.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1、 through the fifth motor output end rotation, drive the clamping plate rotates one hundred and eighty degrees, thus drive the tennis machine injection molding part to turn over, and then respectively to the two sides of the tennis machine injection molding part impact, to detect the compression resistance of both sides, and the outside of the tennis machine injection molding part through multiple different impact of different direction, to simulate the direction of the tennis shot, more truly reflect the performance and reliability of the tennis machine injection molding part in actual use, reached the tennis machine injection molding part compression resistance performance test accuracy high effect.

[0017] 2、 through the light emitting diode to the injection molding plate emits strong light, light intensity sensor detects the light intensity through the injection molding plate, so that the control box calculates the light transmittance of the injection molding part to be detected, and then according to the size of the light transmittance, accurately judge the material of the tennis machine injection molding part, and the control box further judges the test environment temperature corresponding to the material according to the material, that is, the environmental temperature affecting the compression resistance of the material, and then controls the water chiller or heating pipe to start, simulates the high temperature environment or low temperature environment of the tennis machine injection molding part with different materials in use, and then tests the compression resistance of the tennis machine injection molding part with different materials, which reaches the effect of high accuracy of tennis machine injection molding part compression resistance performance test. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings: Figure 1 It is the overall structure schematic diagram of the tennis machine injection molding part compression detection device of the present application; Figure 2 It is the structure schematic diagram of the adjusting mechanism and the impact mechanism in the present application; Figure 3 It is the structure schematic diagram of the cooling mechanism in the present application; Figure 4 It is the structure schematic diagram of the clamping mechanism in the present application; Figure 5 It is the structure schematic diagram of the lifting assembly in the present application; Figure 6 It is the structure schematic diagram of the lifting assembly from another angle in the present application; Figure 7 It is the structure schematic diagram of the temperature simulation mechanism in the present application; Figure 8 It is the structure schematic diagram of the inside of the wind deflector in the present application.

[0019] In the figure: 1, rack; 2, adjusting mechanism; 21, first motor; 22, first rotating cylinder; 23, first U-shaped plate; 24, second motor; 25, third rotating cylinder; 26, support cylinder; 27, second rotating cylinder; 28, fourth rotating cylinder; 29, second U-shaped plate; 3, clamping mechanism, 31, fixed plate, 32, first connecting block, 33, first chain, 34, first gear, 35, second connecting block, 36, lifting assembly, 361, support frame, 362, fourth motor, 363, sliding rail, 364, sliding block, 365, second sliding plate, 366, fifth motor, 367, third gear, 368, second chain, 369, fourth gear, 37, detection assembly, 371, light emitting diode, 372, projected light intensity sensor, 373, clamping plate, 38, third motor, 39, second gear; 4, temperature control mechanism, 41, adjusting frame, 42, fan, 43, sixth motor, 44, wind shield, 45, ventilation slot, 46, heating pipe, 47, cooling disc; 5, control box; 6, cooling mechanism, 61, water chiller unit, 62, first water pump, 63, second water pump; 7, impact mechanism, 71, hydraulic cylinder, 72, positioning plate, 73, third U-shaped plate, 74, guide sliding column, 75, pressure sensor, 76, pressure head, 77, guide sliding cylinder, 78, sliding column, 79, first sliding plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Embodiment one, please refer to Figures 1-8 The present application provides a technical solution: a tennis ball machine injection molding part compression detection device, comprising a rack 1 and a control box 5 arranged inside the rack 1, the inside of the rack 1 is provided with an adjusting mechanism 2 below for adjusting the impact direction of the injection molding part, the upper side of the adjusting mechanism 2 is provided with an impact mechanism 7 for impacting the injection molding part, the upper side of the impact mechanism 7 is provided with a clamping mechanism 3 for clamping and detecting the light transmittance of the injection molding part, the middle of the clamping mechanism 3 is provided with a temperature control mechanism 4 for simulating the temperature of the use environment of the injection molding part, and the upper side of the temperature control mechanism 4 is provided with a cooling mechanism 6 for circulating cooling of the water temperature.

[0022] Please refer to Figure 2The adjusting mechanism 2 comprises a support cylinder 26 fixedly connected to the inside of the frame 1, a first motor 21 fixedly connected to the lower side of the support cylinder 26, an output end of the first motor 21 penetrating through the support cylinder 26 and fixedly connected with a first rotating cylinder 22, a second rotating cylinder 27 rotatably connected to the upper side of the support cylinder 26, the second rotating cylinder 27 and the first rotating cylinder 22 being connected by a rubber belt, a first U-shaped plate 23 fixedly connected to the upper side of the second rotating cylinder 27, a second motor 24 fixedly connected to the inside of the first U-shaped plate 23, an output end of the second motor 24 penetrating through the first U-shaped plate 23 and fixedly connected with a third rotating cylinder 25, a fourth rotating cylinder 28 rotatably connected to one side of the first U-shaped plate 23, the third rotating cylinder 25 and the fourth rotating cylinder 28 being connected by a rubber belt, and a second U-shaped plate 29 penetrating through the first U-shaped plate 23 and fixedly connected to one side of the fourth rotating cylinder 28.

[0023] Based on the above structure, the rotation of the output end of the first motor 21 drives the first rotating cylinder 22 to rotate, the first rotating cylinder 22 drives the second rotating cylinder 27 to rotate through the rubber belt, thereby driving the first U-shaped plate 23 to rotate, and further driving the second U-shaped plate 29 to rotate, so as to change the impact direction of the impact mechanism 7.

[0024] The rotation of the output end of the second motor 24 drives the third rotating cylinder 25 to rotate, thereby driving the fourth rotating cylinder 28 to rotate through the rubber belt, and further driving the second U-shaped plate 29 to rotate, so as to change the impact angle of the impact mechanism 7.

[0025] The impact mechanism 7 comprises a third U-shaped plate 73 fixedly connected to the upper side of the second U-shaped plate 29, a positioning plate 72 fixedly connected to the inside of the third U-shaped plate 73, a hydraulic cylinder 71 fixedly connected to the lower side of the positioning plate 72, an output end of the hydraulic cylinder 71 penetrating through the positioning plate 72 and fixedly connected with a sliding column 78, a first sliding plate 79 fixedly connected to the outer side of the sliding column 78, a guide sliding column 74 arranged on both sides of the first sliding plate 79 and fixedly connected with the positioning plate 72 and the third U-shaped plate 73, the first sliding plate 79 being slidably connected with the guide sliding column 74, a guide sliding cylinder 77 fixedly connected to the upper side of the third U-shaped plate 73, one end of the sliding column 78 penetrating through the third U-shaped plate 73 and slidably connected with the guide sliding cylinder 77, a pressure sensor 75 fixedly connected to the upper side of the sliding column 78, and a pressure head 76 fixedly connected to the detection end of the pressure sensor 75.

[0026] Based on the above structure, the extension and retraction of the output end of the hydraulic cylinder 71 drives the sliding column 78 to move up and down, thereby driving the pressure head 76 to move up and down, and further driving the pressure head 76 to rise and impact the surface of the injection molded part.

[0027] The pressure sensor 75 can be a piezoresistive pressure sensor. Impurities are diffused on a silicon wafer to form a semiconductor strain gauge. When the pressure head 76 impacts the injection molded part, the silicon wafer is pressed, the resistivity changes, and the resistance value also changes. By measuring the resistance change, the pressure signal is obtained. When the pressure sensor 75 detects that the impact pressure reaches the previously set value, the pressure head 76 stops impacting the injection molded part. The set value is the pressure bearing qualified value of the injection molded plate.

[0028] Please refer to Figure 4 The clamping mechanism 3 comprises a fixed plate 31 fixedly connected to the upper inside of the rack 1. The lower side of the fixed plate 31 is fixedly connected with a third motor 38. The output end of the third motor 38 penetrates through the fixed plate 31 and is fixedly connected with a second gear 39. The other side of the fixed plate 31 is rotatably connected with a first gear 34. The outer sides of the first gear 34 and the second gear 39 are both meshingly connected with a first chain 33. One side of the first chain 33 is fixedly connected with a first connecting block 32, and the other side of the first chain 33 is fixedly connected with a second connecting block 35. The lower sides of the first connecting block 32 and the second connecting block 35 are both provided with a lifting assembly 36. One side of the lifting assembly 36 is provided with a detection assembly 37.

[0029] The clamping mechanism 3 comprises a fixed plate 31 fixedly connected to the upper inside of the rack 1. The lower side of the fixed plate 31 is fixedly connected with a third motor 38. The output end of the third motor 38 penetrates through the fixed plate 31 and is fixedly connected with a second gear 39. The other side of the fixed plate 31 is rotatably connected with a first gear 34. The outer sides of the first gear 34 and the second gear 39 are both meshingly connected with a first chain 33. One side of the first chain 33 is fixedly connected with a first connecting block 32, and the other side of the first chain 33 is fixedly connected with a second connecting block 35. The lower sides of the first connecting block 32 and the second connecting block 35 are both provided with a lifting assembly 36. One side of the lifting assembly 36 is provided with a detection assembly 37.

[0030] Please refer to Figure 5 and Figure 6 The lifting assembly 36 comprises a support frame 361 fixedly connected to the lower side of the second connecting block 35. The lower side of the fixed plate 31 is fixedly connected with a sliding rail 363. The upper side of the support frame 361 is fixedly connected with a plurality of sliding blocks 364. The sliding blocks 364 are slidingly connected with the sliding rail 363. The inside of the support frame 361 is fixedly connected with a fourth motor 362. The output end of the fourth motor 362 is fixedly connected with a fourth gear 369. The lower side of the support frame 361 is rotatably connected with a third gear 367. The outer sides of the third gear 367 and the fourth gear 369 are both meshingly connected with a second chain 368. The two ends of the second chain 368 are fixedly connected with a second sliding plate 365. One side of the second sliding plate 365 is fixedly connected with a fifth motor 366. The output end of the fifth motor 366 penetrates through the second sliding plate 365.

[0031] The fourth motor 362 drives the fourth gear 369 to rotate, and the fourth gear 369 drives the second chain 368 to move, and the second chain 368 drives the second sliding plate 365 to rise or fall, so that the clamped tennis machine injection molding plate is close to or away from the pressure head 76. The fifth motor 366 drives the clamped injection molding part to flip, so that the other side of the injection molding plate is subjected to pressure resistance detection after the pressure resistance detection of one side of the injection molding plate is completed.

[0032] When the pressure resistance detection of one side of the tennis machine injection molding plate is needed, the staff places the tennis machine injection molding plate between the two clamping plates 373, the third motor 38 drives the two clamping plates 373 to move closer to each other, thereby clamping the tennis machine injection molding part, the fourth motor 362 drives the second sliding plate 365 to move downward, thereby making the clamped tennis machine injection molding plate close to the pressure head 76, the hydraulic cylinder 71 drives the pressure head 76 to move upward, and the pressure sensor 75 monitors the pressure generated during the impact in real time. When the pressure reaches the set value, the hydraulic cylinder 71 stops extending, and the pressure head 76 moves downward to return to the original position. The staff observes whether the one side of the tennis machine injection molding part has cracks and whether the deformation amount is within the normal range. The fifth motor 366 drives the clamping plate 373 to rotate by 180 degrees, thereby driving the tennis machine injection molding part to flip, so that the other side of the tennis machine injection molding part is aligned with the pressure head 76, and the hydraulic cylinder 71 drives the pressure head 76 to impact the other side of the tennis machine injection molding part.

[0033] Since the tennis machine injection molding plate will be frequently impacted by tennis balls at different angles in actual use, in order to more truly reflect its performance and reliability in actual use, multiple impact tests are needed to ensure that the product still meets the use requirements after multiple impacts. After the first direct impact is completed, the second motor 24 drives the second U-shaped plate 29 to rotate by 30 degrees, thereby making the pressure head 76 inclined by 30 degrees, and the hydraulic cylinder 71 drives the pressure head 76 to extend to impact the other side of the tennis machine injection molding part in an oblique upward direction, simulating the impact of a tennis ball from an oblique upward direction on the tennis machine injection molding plate.

[0034] After the second oblique upward impact is completed, the first motor 21 drives the pressure head 76 to extend to impact the other side of the tennis machine injection molding part in an oblique right direction, simulating the impact of a tennis ball from an oblique right direction on the tennis machine injection molding plate.

[0035] After the third oblique right direction impact ends, the output end of the first motor 21 rotates clockwise by ninety degrees, the hydraulic cylinder 71 drives the pressure head 76 to extend, and the other side of the tennis machine injection molding part is impacted in an oblique left direction to simulate the impact of a tennis ball from the oblique left direction on the tennis machine injection molding plate.

[0036] After the third oblique right direction impact ends, the output end of the first motor 21 rotates clockwise by ninety degrees, the hydraulic cylinder 71 drives the pressure head 76 to extend, and the other side of the tennis machine injection molding part is impacted in an oblique left direction to simulate the impact of a tennis ball from the oblique left direction on the tennis machine injection molding plate.

[0037] After multiple impacts in different oblique directions, the staff observes whether there are cracks on the other side of the tennis machine injection molding part and whether the deformation is within the normal range.

[0038] Through the rotation of the output end of the fifth motor 366, the clamping plate 373 is rotated by one hundred and eighty degrees, thereby bringing the tennis machine injection molding part to flip and further impacting the two sides of the tennis machine injection molding part to detect the compression resistance of the two sides. The outside of the tennis machine injection molding part is impacted in multiple different oblique directions to simulate the direction of the incoming tennis ball, more realistically reflecting the performance and reliability of the tennis machine injection molding part in actual use, achieving the effect of high accuracy of the compression resistance test of the tennis machine injection molding part.

[0039] In Example Two, since the tennis machine operates outdoors, the ambient temperature is also different, and different injection molding materials can withstand different pressures at high or low temperatures. The existing tennis machine injection plate test is conducted at room temperature for compression resistance detection, which cannot simulate the temperature around the tennis machine injection plate for synchronous detection, reducing the accuracy of the compression resistance detection of the tennis machine injection plate. When the temperature around the tennis machine changes, the temperature of the tennis machine injection plate also changes, thereby changing the compression resistance of the tennis machine injection plate, making it more prone to breakage and deformation. Therefore, the following structure is designed to solve the above technical problems. Please refer to Figures 6-8 The detection assembly 37 includes a clamping plate 373 fixedly connected to the output end of the fifth motor 366, the upper side of the clamping plate 373 is fixedly connected with a light-emitting diode 371, and the lower side of the clamping plate 373 is fixedly connected with a projected light intensity sensor 372.

[0040] Based on the above structure, the following supplementary explanations are as follows: The light-emitting diode 371 is used to emit strong light to the injection plate, and the projected light intensity sensor 372 is used to detect the remaining light intensity transmitted through the injection plate. The projected light intensity sensor 372 can be a photosensitive diode sensor that generates current under light, and the conduction current increases with the increase of light intensity, thereby detecting the light intensity emitted by the light-emitting diode 371 through the injection plate.

[0041] The temperature control mechanism 4 comprises an adjusting frame 41 fixedly connected to the lower side of the fixed plate 31, the sixth motor 43 is fixedly connected inside the adjusting frame 41, the output end of the sixth motor 43 is fixedly connected with the fan 42, the lower side of the adjusting frame 41 is fixedly connected with the wind deflector 44, the inside of the wind deflector 44 is fixedly connected with the cooling disc 47, and a plurality of ventilation grooves 45 are arranged in the inside of the cooling disc 47, and each ventilation groove 45 is fixedly connected with a heating pipe 46.

[0042] Based on the above structure, the rotation of the output end of the sixth motor 43 drives the fan 42 to rotate, so as to generate air flow, and the air flow blows on the surface of the tennis machine injection molding part through the ventilation grooves 45. The water cavity in the inside of the cooling disc 47 is used to fill with cooling water, so that the air flow passing through the ventilation grooves 45 is cooled, and then the low-temperature air blows on the surface of the tennis machine injection molding plate, so as to simulate the working environment of the tennis machine injection molding plate in winter. When it is needed to simulate the working environment of the tennis machine injection molding plate in summer, the heating pipe 46 is started and generates hot air around, at this time, the inside of the ventilation groove 45 is filled with high heat, and when the air flow passes through the ventilation groove 45 with high heat, the air flow is heated to high-temperature air flow, so that the high-temperature air blows on the surface of the tennis machine injection molding plate.

[0043] Please refer to Figure 3 The cooling mechanism 6 comprises a water chiller 61 fixedly connected to the upper side of the rack 1, and the water chiller 61 is fixedly connected with a first water pump 62 on one side, and the rack 1 is fixedly connected with a second water pump 63 on one side.

[0044] When the working environment in winter is simulated, the water chiller 61 is started and circulates the water in the water cavity. The water chiller 61 mainly comprises a compressor, a condenser, an expansion valve and an evaporator, and the working principle is that the low-temperature and low-pressure refrigerant liquid absorbs the heat of the cooled water in the evaporator, evaporates into refrigerant gas, and loses heat after being cooled by the water, so as to achieve the cooling effect. The refrigerant gas enters the compressor after being discharged from the evaporator, and the compressor compresses the refrigerant gas into high-temperature and high-pressure gas by doing work, and the temperature is increased at the same time. The high-temperature and high-pressure refrigerant gas enters the condenser, exchanges heat with the cooling medium (such as cooling water or air) in the condenser, releases heat and condenses into liquid. When the high-temperature and high-pressure refrigerant liquid flows through the expansion valve, the pressure and temperature are sharply reduced due to the throttling effect, and the liquid becomes low-temperature and low-pressure liquid, which is ready to enter the evaporator again, so as to cool and circulate the water source in the water cavity. The second water pump 63 is used to deliver the normal-temperature water in the water cavity to the inside of the water chiller 61 for cooling, and the first water pump 62 extracts the low-temperature water after cooling to the inside of the water cavity, so as to cool the air flow passing through the ventilation grooves 45.

[0045] The interior of the cooling disc 47 is provided with a water cavity, which is provided with an inlet end and an outlet end. The output end of the second water pump 63 is connected to the input end of the water chiller 61 in a pipeline manner. The input end of the second water pump 63 is connected to the outlet end of the water cavity in a pipeline manner. The input end of the first water pump 62 is connected to the output end of the water chiller 61 in a pipeline manner. The output end of the first water pump 62 is connected to the inlet end of the water cavity in a pipeline manner.

[0046] The following is a supplementary explanation based on the above structure. The injection molding material of the tennis machine injection molding part is usually PC and ABS material. The light transmittance of ABS is relatively low, generally about 5%-10%. As the temperature rises, the molecular chain movement of the injection molding material intensifies, the material gradually softens, and the compressive strength usually decreases. In a high-temperature environment, the strength and rigidity of ABS plastic decrease, and the compressive performance deteriorates. PC is a high-transparency material, and the light transmittance can reach about 88%. At low temperatures, the thermal motion of PC molecular chains slows down, the distance between molecular chains decreases, and the crystallinity inside the material may change, thereby increasing the hardness and making it more prone to cracking when impacted. Therefore, the compressive performance test of injection molding parts made of the two materials at a specific environmental temperature is more accurate.

[0047] The light-emitting diode 371 emits strong light to the injection molding plate. The control box 5 records the incident light intensity as the projected light intensity. The projected light intensity sensor 372 detects the light intensity transmitted through the injection molding plate. The control box 5 records the projected light intensity. The light transmittance of the injection molding plate is obtained by (transmitted light intensity / incident light intensity) x 100%.

[0048] When the control box 5 calculates that the light transmittance of the injection molding plate is between 5%-10%, the control box 5 determines that the injection molding plate is an ABS injection molding plate. Since the compressive performance of the ABS injection molding plate is poorer in a high-temperature environment, before the test, the control box 5 controls the output end of the sixth motor 43 to rotate and drive the fan 42 to rotate. The heating pipe 46 is started, and hot air is generated around. At this time, the inside of the ventilation groove 45 is filled with high heat. When the airflow passes through the high-heat ventilation groove 45, the airflow is heated into high-temperature airflow, thereby blowing high-temperature wind on the surface of the tennis machine injection molding plate, and making the surrounding of the ABS injection molding plate become a high-temperature environment. At this time, the compressive performance test of the ABS injection molding plate is performed again.

[0049] When the control box 5 calculates that the light transmittance of the injection molding plate is between 87%-89%, the control box 5 determines that the injection molding plate is a PC injection molding plate. Since the compressive performance of the PC injection molding plate is poorer in a low-temperature environment, before the test, the control box 5 controls the output end of the sixth motor 43 to rotate and drive the fan 42 to rotate. The water chiller 61 circulates and cools the cooling water filled in the water cavity inside the cooling disc 47, thereby cooling the airflow passing through the ventilation groove 45. In turn, the low-temperature wind blows on the surface of the tennis machine injection molding plate, making the surrounding of the PC injection molding plate become a low-temperature environment. At this time, the compressive performance test of the ABS injection molding plate is performed again.

[0050] The light emitting diode 371 emits strong light to the injection molding plate, the light intensity sensor 372 detects the light intensity through the injection molding plate, so that the control box 5 calculates the light transmittance of the injection molding part to be detected, and according to the size of the light transmittance, the material of the tennis machine injection molding part is accurately judged, and the control box 5 further judges the test environment temperature corresponding to the material according to the material, that is, the environmental temperature affecting the compression resistance of the material, and then controls the water chiller set 61 or the heating pipe 46 to start, simulates the high temperature environment or low temperature environment of the tennis machine injection molding part of different materials in use, and then tests the compression resistance of the tennis machine injection molding part of different materials, so as to achieve the effect that the compression resistance detection of the tennis machine injection molding part is accurate.

[0051] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0052] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and does not limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A tennis ball machine injection molding part compression detection device, comprising a rack (1) and a control box (5) arranged in the interior of the rack (1), characterized in that, The inside lower part of the frame (1) is provided with an adjusting mechanism (2) for adjusting the impact direction of the injection molded part, the upper side of the adjusting mechanism (2) is provided with an impact mechanism (7) for impacting the injection molded part, the upper side of the impact mechanism (7) is provided with a clamping mechanism (3) for clamping and detecting the transmittance of the injection molded part, the middle of the clamping mechanism (3) is provided with a temperature control mechanism (4) for simulating the use environment temperature of the injection molded part, and the upper side of the temperature control mechanism (4) is provided with a cooling mechanism (6) for circulating cooling of the water temperature. The adjusting mechanism (2) comprises a supporting cylinder (26) fixedly connected to the inside lower part of the frame (1), a first motor (21) fixedly connected to the lower side of the supporting cylinder (26), a first rotating cylinder (22) penetrating through the supporting cylinder (26) and fixedly connected to the output end of the first motor (21), a second rotating cylinder (27) rotatably connected to the upper side center of the supporting cylinder (26), the second rotating cylinder (27) and the first rotating cylinder (22) being connected by a rubber belt, a first U-shaped plate (23) fixedly connected to the upper side of the second rotating cylinder (27), a second motor (24) fixedly connected to the inside of the first U-shaped plate (23), a third rotating cylinder (25) penetrating through the first U-shaped plate (23) and fixedly connected to the output end of the second motor (24), and a fourth rotating cylinder (28) rotatably connected to one side of the first U-shaped plate (23), the third rotating cylinder (25) and the fourth rotating cylinder (28) being connected by a rubber belt, and a second U-shaped plate (29) penetrating through the first U-shaped plate (23) and fixedly connected to one side of the fourth rotating cylinder (28).

2. The ball machine injection molding part compression detection device according to claim 1, wherein, The impact mechanism (7) comprises a third U-shaped plate (73) fixedly connected to the upper side of the second U-shaped plate (29), a positioning plate (72) fixedly connected to the inside of the third U-shaped plate (73), a hydraulic cylinder (71) fixedly connected to the lower side of the positioning plate (72), a sliding column (78) penetrating through the positioning plate (72) and fixedly connected to the output end of the hydraulic cylinder (71), a first sliding plate (79) fixedly connected to the outer side of the sliding column (78), and a guide sliding column (74) arranged on both sides of the first sliding plate (79) and fixedly connected with the positioning plate (72) and the third U-shaped plate (73).

3. The ball machine injection molding part compression detection device according to claim 2, wherein, The first sliding plate (79) is slidingly connected with the guide sliding column (74), the upper side of the third U-shaped plate (73) is fixedly connected with a guide sliding cylinder (77), one end of the sliding column (78) penetrates through the third U-shaped plate (73) and is slidingly connected with the guide sliding cylinder (77), the upper side of the sliding column (78) is fixedly connected with a pressure sensor (75), and the detection end of the pressure sensor (75) is fixedly connected with a pressure head (76).

4. The ball machine injection molding part compression detection device according to claim 1, wherein, The clamping mechanism (3) includes a fixed plate (31) fixedly connected to the top of the inside of the frame (1), the lower side of the fixed plate (31) is fixedly connected with a third motor (38), the output end of the third motor (38) penetrates through the fixed plate (31) and is fixedly connected with a second gear (39), the other side of the fixed plate (31) is rotatably connected with a first gear (34), and the outer sides of the first gear (34) and the second gear (39) are all meshedly connected with a first chain (33).

5. The ball machine injection molded part compression detection device of claim 4, wherein, One side of the first chain (33) is fixedly connected with a first connecting block (32), and the other side of the first chain (33) is fixedly connected with a second connecting block (35), the lower sides of the first connecting block (32) and the second connecting block (35) are both provided with a lifting assembly (36), and one side of the lifting assembly (36) is provided with a detection assembly (37).

6. The ball machine injection molded part compression detection device of claim 5, wherein, The lifting assembly (36) includes a support frame (361) fixedly connected to the lower side of the second connecting block (35), the lower side of the fixed plate (31) is fixedly connected with a sliding rail (363), the upper side of the support frame (361) is fixedly connected with a plurality of sliding blocks (364), the sliding blocks (364) are slidably connected with the sliding rail (363), and the inside of the support frame (361) is fixedly connected with a fourth motor (362), and the output end of the fourth motor (362) is fixedly connected with a fourth gear (369).

7. The ball machine injection molded part compression detection device of claim 6, wherein, The lower side of the support frame (361) is rotatably connected with a third gear (367), the outer sides of the third gear (367) and the fourth gear (369) are all meshedly connected with a second chain (368), and the two ends of the second chain (368) are fixedly connected with a second sliding plate (365). One side of the second sliding plate (365) is fixedly connected with a fifth motor (366), and the output end of the fifth motor (366) penetrates through the second sliding plate (365).

8. The ball machine injection molded part compression detection device of claim 7, wherein, The detection assembly (37) includes a clamping plate (373) fixedly connected to the output end of the fifth motor (366), the upper side of the clamping plate (373) is fixedly connected with a light-emitting diode (371), and the lower side of the clamping plate (373) is fixedly connected with a projected light intensity sensor (372).

9. The ball machine injection molded part compression detection device of claim 4, wherein, The temperature control mechanism (4) includes an adjusting frame (41) fixedly connected to the lower side of the fixed plate (31), the inside of the adjusting frame (41) is fixedly connected with a sixth motor (43), the output end of the sixth motor (43) is fixedly connected with a fan (42), the lower side of the adjusting frame (41) is fixedly connected with a wind shield (44), the inside of the wind shield (44) is fixedly connected with a cooling disc (47), the inside of each ventilation groove (45) is fixedly connected with a heating pipe (46).

10. The ball machine injection molded part compression detection device of claim 9, wherein, The cooling mechanism (6) comprises a water chiller (61) fixedly connected to the upper side of the rack (1), one side of the water chiller (61) is fixedly connected with a first water pump (62), one side of the rack (1) is fixedly connected with a second water pump (63), the inside of the cooling disc (47) is provided with a water cavity, the water cavity is provided with a water inlet end and a water outlet end, the output end of the second water pump (63) is connected with the input end pipeline of the water chiller (61), the input end of the second water pump (63) is connected with the water outlet end pipeline of the water cavity, the input end of the first water pump (62) is connected with the output end pipeline of the water chiller (61), and the output end of the first water pump (62) is connected with the water inlet end pipeline of the water cavity.

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