Injection molding part size precision detection equipment

Abstract

This invention discloses a device for detecting the dimensional accuracy of injection molded parts, relating to the field of injection molded part production inspection technology. The invention includes a conveyor frame, a screw conveyor mounted on top of the conveyor frame, a guide groove fixedly connected to the circumferential surface of the screw conveyor, a monitoring frame mounted on the side of the conveyor frame, a frame mounted on top of the monitoring frame, a central motor fixedly connected to the top of the conveyor frame, a turntable fixedly connected to the output shaft of the central motor, and a sliding adjustment support structure on the top of the conveyor frame. This invention, through the sliding adjustment support structure, allows the inspection mechanism to be adjusted in multiple directions along the slide rail and locking seat, facilitating the adjustment of the inspection component position according to the inspection requirements of injection molded parts of different specifications, without the need for additional tooling fixture changes, adapting to the inspection needs of injection molded parts of different sizes, and improving the applicability of the equipment.

Description

Technical Field

[0001] This invention relates to the field of injection molded part production and inspection technology, specifically to an injection molded part dimensional accuracy inspection device. Background Technology

[0002] Injection molded parts are molded workpieces obtained through injection molding. After the injection molding process is completed, in order to ensure that the dimensional accuracy of the products leaving the factory meets the specifications, it is necessary to use dimensional accuracy testing equipment to test the dimensional parameters of the injection molded parts and screen out unqualified workpieces that exceed the dimensional standards.

[0003] According to a public announcement (publication number: CN223346401U), a high-precision quality inspection device for injection molded parts of home appliances includes a support frame. A hydraulic cylinder is installed on the top of the support frame. The beneficial effects of this invention are: by setting a first bidirectional lead screw and a movable slider, the rotation of the first bidirectional lead screw drives the outer movable slider to move and adjust. The movable slider then drives the adjustment box, adjustment slide plate, and pressure rod to adjust their positions. The rotation of the second bidirectional lead screw drives the outer adjustment slide plate and pressure rod to move and adjust the spacing between the four pressure rods. This facilitates the testing of the impact resistance strength at the four corners of injection molded parts of different remote controls. Furthermore, by setting a positioning frame for the remote control injection molded parts, the remote control injection molded parts are placed within the positioning frame, limiting their placement and facilitating the quality inspection of the remote control injection molded parts.

[0004] In the aforementioned application, the position of the pressure bar is adjusted by using a lead screw to drive a slider. Although this method can adapt to the inspection of different types of injection molded parts, in actual use, after the inspection is completed, the injection molded parts need to be rearranged to facilitate the inspection mechanism to pick them up and inspect them in sequence. At the same time, after the injection molded parts are formed, residual fine burrs and debris will adhere to the surface. These debris will affect the accuracy of the dimensional inspection of the inspection equipment, easily causing deviations in the inspection values, resulting in defective products flowing out and affecting the quality of the finished products. Therefore, we propose an injection molded part dimensional accuracy inspection device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an injection molded part dimensional accuracy testing device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for detecting the dimensional accuracy of injection molded parts, comprising a conveyor frame, a screw conveyor mounted on the top of the conveyor frame, a guide groove fixedly connected to the circumferential surface of the screw conveyor, a monitoring frame mounted on the side of the conveyor frame, a frame mounted on the top of the monitoring frame, a central motor fixedly connected to the top of the conveyor frame, a turntable fixedly connected to the output shaft of the central motor, and a sliding adjustment support structure mounted on the top of the conveyor frame.

[0007] The sliding adjustment support structure includes a slide rail, which is fixedly connected to the top of the conveyor frame. A sliding plate is slidably connected to the top of the slide rail. A locking seat is slidably connected to the top side of the sliding plate. An equipment mounting plate is slidably connected to the side of the locking seat. A finished product storage box is provided on the side of the equipment mounting plate. A data display screen is fixedly connected to the bottom of the frame. A high-pressure cylinder is fixedly connected to the bottom of the frame.

[0008] According to the above technical solution, the slide rail, sliding plate, locking seat and equipment mounting plate are arranged in four sets and are arranged in a circular array along the vertical central axis of the central motor, so that different detection and adjustment equipment can be installed on the four sets of equipment mounting plates respectively, so as to realize multi-station continuous detection of injection molded parts and improve detection efficiency.

[0009] According to the above technical solution, the end of the guide groove away from the screw conveyor is located above the turntable, and the high-pressure cylinder is located above the turntable, realizing continuous feeding without the need for manual placement and feeding of materials one by one, reducing labor costs and improving detection efficiency.

[0010] According to the above technical solution, a rotating and tidying device is provided on the top of the monitoring platform. The rotating and tidying device includes a support frame, which is fixedly connected to the top of the monitoring platform. A hollow shaft is rotatably connected through the side of the monitoring platform. A brush is inserted into the circumferential surface of the hollow shaft. A pulley is fixedly connected to the circumferential surface of the hollow shaft. A power motor is fixedly connected to the top of the monitoring platform. A gear is fixedly connected to the output shaft of the power motor. A transmission plate is fixedly connected to the top of the monitoring platform. A transmission shaft is rotatably connected through the side of the transmission plate. A pulley is fixedly connected to the circumferential surface of the transmission shaft. A belt is provided on the circumferential surface of the pulley. A gear is fixedly connected to one end of the transmission shaft. This device can clean the turntable, preventing debris and dust from accumulating on the turntable and affecting the flatness of the injection molded parts, thereby avoiding affecting the dimensional detection accuracy and ensuring accurate detection results.

[0011] According to the above technical solution, pulley one and pulley two are connected by belt drive, gear one and gear two mesh with each other, and gear one has more teeth than gear two, so that the hollow shaft drives the brush to obtain a higher rotation speed and improves the cleaning effect of the brush on the surface of the turntable.

[0012] According to the above technical solution, the circumferential surface of the transmission shaft is connected to the side of the transmission plate through and rotatably, and the circumferential surface of the brush abuts against the top of the turntable to avoid dust and debris accumulating on the surface of the turntable, causing the injection molded parts to be placed tilted, which would affect the accuracy of subsequent dimensional inspection.

[0013] According to the above technical solution, a negative pressure dust collection structure is provided on the top of the monitoring platform. The negative pressure dust collection structure includes a dust collection chamber, which is fixedly connected to the top of the monitoring platform. A rotating shaft is rotatably connected through the side of the dust collection chamber. A fan blade is fixedly connected to one end of the rotating shaft, and a gear is fixedly connected to the end of the rotating shaft away from the fan blade. An air pipe is fixedly connected to the top of the dust collection chamber. A dust suction port is provided on the circumferential surface of the hollow shaft to prevent dust generated during cleaning from drifting into the air and affecting the workshop environment, and to prevent debris from adhering to the surface of the injection molded parts and affecting the detection accuracy.

[0014] According to the above technical solution, gear three meshes with gear one, and gear one has more teeth than gear three, thereby improving dust collection efficiency.

[0015] According to the above technical solution, the dust collection bin and the hollow shaft are interconnected through an air pipe, which reduces the range of dust dispersion and ensures the effectiveness of cleaning and dust removal.

[0016] According to the above technical solution, the fan blades are located inside the dust collection chamber, and the number of dust suction ports is set in several groups to ensure that the surface of the turntable is always clean and flat, and to maintain the accuracy and stability of the injection molded part size detection.

[0017] This invention provides a device for inspecting the dimensional accuracy of injection molded parts. It has the following beneficial effects: (1) By setting up a sliding adjustment support structure, the present invention enables the detection mechanism to be adjusted in multiple directions along the slide rail and locking seat, which is convenient to adjust the position of the detection component according to the detection requirements of different specifications of injection molded parts. There is no need to replace the tooling fixtures, which can adapt to the detection requirements of injection molded parts of different sizes and improve the applicability of the equipment. Multiple sets of sliding adjustment support structures cooperate with the rotation of the turntable to realize continuous detection at multiple stations and effectively improve the detection efficiency.

[0018] (2) By setting up a rotating sorting device, the present invention enables the power motor to drive the brush to rotate stably with the hollow shaft through gear transmission and belt transmission when the motor rotates. During the rotation of the brush, the residual debris and dust on the surface of the turntable can be cleaned, and the excess impurities accumulated on the turntable can be removed, ensuring that the injection molded parts are placed on the turntable in a flat state. The injection molded parts will not be tilted due to the impurities. This avoids the problem of deviation in the size detection of injection molded parts due to the unevenness of the turntable.

[0019] (3) By setting up a negative pressure dust collection structure, the present invention enables the power motor to rotate through gear meshing to drive the gear three and the rotating shaft to rotate. The rotating shaft drives the fan blade to rotate inside the dust collection chamber, which reduces the air pressure inside the dust collection chamber to form a negative pressure. The hollow shaft is evacuated through the air pipe, so that the dust and debris generated during cleaning can be sucked into the hollow shaft through the dust suction port and finally discharged into the dust collection chamber for collection. This avoids the dust generated during cleaning from drifting to the inspection area or adhering to the surface of the injection molded parts. This not only ensures the cleanliness of the workshop air environment, but also avoids the debris from affecting the inspection agency's identification and inspection of the dimensions of the injection molded parts, further improving the accuracy of the dimension inspection results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional side view of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention in a three-dimensional partial side view; Figure 3 This is an enlarged structural schematic diagram of the three-dimensional monitoring platform of the present invention; Figure 4 This is a schematic diagram of the three-dimensional central motor from the side view of the present invention; Figure 5 This is a side view structural schematic diagram of the three-dimensional power motor of the present invention; Figure 6 This is a three-dimensional enlarged structural schematic diagram of the rotary finishing device of the present invention; Figure 7 This is a three-dimensional magnified structural diagram of the brush of the present invention.

[0021] In the diagram: 1. Conveying platform; 2. Screw conveyor; 3. Guide trough; 4. Monitoring platform; 5. Frame; 6. Central motor; 7. Turntable; 8. Sliding adjustment support structure; 801. Slide rail; 802. Sliding plate; 803. Locking seat; 804. Equipment mounting plate; 805. Finished product storage box; 806. Data display screen; 807. High-pressure cylinder; 9. Rotary sorting device; 901. Support frame; 902. Hollow shaft; 903. Brush; 904. Pulley 1; 905. Power motor; 906. Gear 1; 907. Transmission plate; 908. Transmission shaft; 909. Pulley 2; 910. Belt; 911. Gear 2; 10. Negative pressure dust collection structure; 101. Dust collection bin; 102. Rotating shaft; 103. Fan blade; 104. Gear 3; 105. Air pipe; 106. Dust suction port. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Please see Figures 1-7 One embodiment of the present invention is: an injection molded part dimensional accuracy testing device, including a conveyor frame 1, a screw conveyor 2 is provided on the top of the conveyor frame 1, a guide groove 3 is fixedly connected to the circumferential surface of the screw conveyor 2, a monitoring frame 4 is provided on the side of the conveyor frame 1, a frame 5 is provided on the top of the monitoring frame 4, a central motor 6 is fixedly connected to the top of the conveyor frame 1, a turntable 7 is fixedly connected to the output shaft of the central motor 6, and a sliding adjustment support structure 8 is provided on the top of the conveyor frame 1.

[0024] The sliding adjustment support structure 8 includes a slide rail 801, which is fixedly connected to the top of the conveyor frame 1. A sliding plate 802 is slidably connected to the top of the slide rail 801. A locking seat 803 is slidably connected to the top side of the sliding plate 802. An equipment mounting plate 804 is slidably connected to the side of the locking seat 803. A finished product storage box 805 is provided on the side of the equipment mounting plate 804. A data display screen 806 is fixedly connected to the bottom of the frame 5. A high-pressure cylinder 807 is fixedly connected to the bottom of the frame 5.

[0025] The slide rail 801, sliding plate 802, locking seat 803 and equipment mounting plate 804 are arranged in four sets and are arranged in a circular array along the vertical central axis of the central motor 6. This allows the four sets of equipment mounting plates 804 to install different detection and adjustment equipment, enabling multi-station continuous detection of injection molded parts and improving detection efficiency.

[0026] The end of the guide trough 3 away from the screw conveyor 2 is located above the turntable 7, and the high-pressure cylinder 807 is located above the turntable 7 to achieve continuous feeding, eliminating the need for manual placement and feeding of materials one by one, reducing labor costs and improving testing efficiency.

[0027] In operation, after the operator pours the injection molded parts into the screw conveyor 2 in batches, the screw conveyor 2 drives the injection molded parts to move one by one along the guide groove 3, conveying them one by one to the top of the turntable 7. At this time, the central motor 6 drives the turntable 7 to rotate, so that the turntable 7 carries the injection molded parts through different sliding adjustment support structures 8 in sequence. The operator can pre-install the corresponding detection probes on the equipment mounting plate 804, and adjust the position of the sliding plate 802 on the slide rail 801, the position of the locking seat 803 on the sliding plate 802, and the position of the equipment mounting plate 804 on the locking seat 803 according to the size of the injection molded parts, adapting to the detection needs of injection molded parts of different specifications, thus enhancing adaptability. When the injection molded parts move to the bottom of the high-pressure cylinder 807, the high-pressure cylinder 807 drives the detection probe to press down, detecting the dimensional accuracy of the injection molded parts. The detection data is directly displayed on the data display screen 806, allowing the operator to observe it intuitively.

[0028] Please see Figure 1-7 Based on the above embodiments, in another embodiment of the present invention, a rotating and tidying device 9 is provided on the top of the monitoring platform 4. The rotating and tidying device 9 includes a support frame 901, which is fixedly connected to the top of the monitoring platform 4. A hollow shaft 902 is rotatably connected through the side of the monitoring platform 4. A brush 903 is inserted into the circumferential surface of the hollow shaft 902. A pulley 904 is fixedly connected to the circumferential surface of the hollow shaft 902. A power motor 905 is fixedly connected to the top of the monitoring platform 4. The output shaft of the power motor 905 is fixed. A gear 906 is connected to the top of the monitoring platform 4. A transmission plate 907 is fixedly connected to the top of the transmission plate 907. A transmission shaft 908 is rotatably connected to the side of the transmission plate 907. A pulley 909 is fixedly connected to the circumference of the transmission shaft 908. A belt 910 is provided on the circumference of the pulley 909. A gear 911 is fixedly connected to one end of the transmission shaft 908. This allows for cleaning of the turntable 7, preventing debris and dust from accumulating on the turntable 7 and affecting the flatness of the injection molded parts. This, in turn, avoids affecting the dimensional accuracy and ensures accurate test results.

[0029] Pulley 1 904 and pulley 2 909 are connected by belt 910. Gear 1 906 and gear 2 911 mesh with each other. Gear 1 906 has more teeth than gear 2 911, which enables the hollow shaft 902 to drive the brush 903 to obtain a higher speed, thereby improving the cleaning effect of the brush 903 on the surface of the turntable 7.

[0030] The circumferential surface of the drive shaft 908 is connected to the side of the drive plate 907 and rotates through it. The circumferential surface of the brush 903 is in contact with the top of the turntable 7 to prevent dust and debris from accumulating on the surface of the turntable 7, which would cause the injection molded parts to be placed at an angle and affect the accuracy of subsequent dimensional inspection.

[0031] The top of the monitoring platform 4 is equipped with a negative pressure dust collection structure 10, which includes a dust collection chamber 101. The dust collection chamber 101 is fixedly connected to the top of the monitoring platform 4. A rotating shaft 102 is rotatably connected through the side of the dust collection chamber 101. A fan blade 103 is fixedly connected to one end of the rotating shaft 102, and a gear 104 is fixedly connected to the end of the rotating shaft 102 away from the fan blade 103. An air pipe 105 is fixedly connected to the top of the dust collection chamber 101. A dust suction port 106 is opened on the circumferential surface of the hollow shaft 902 to prevent the dust generated during cleaning from drifting into the air and affecting the workshop environment, and at the same time to prevent debris from adhering to the surface of the injection molded parts and affecting the detection accuracy.

[0032] Gear 3 104 meshes with Gear 1 906. Gear 1 906 has more teeth than Gear 3 104, which improves dust collection efficiency.

[0033] The dust collection bin 101 and the hollow shaft 902 are connected to each other through the air pipe 105, which reduces the range of dust dispersion and ensures the effectiveness of cleaning and dust removal.

[0034] The fan blade 103 is located inside the dust collection chamber 101, and the number of suction ports 106 is set in several groups to ensure that the surface of the turntable 7 is always clean and flat, and to maintain the accuracy and stability of the injection molded part size detection.

[0035] In operation, the central motor 6, screw conveyor 2, power motor 905, and high-pressure cylinder 807 are first started via the data display screen 806. After starting, the power motor 905 drives the gear 906 fixed to the output shaft to rotate. The rotation of gear 906 drives the meshing gear 911 to rotate, which in turn drives the transmission shaft 908 to rotate on the side of the transmission plate 907. The transmission shaft 908 drives pulley 909 to rotate, which in turn drives pulley 904 via belt 910. Pulley 904 drives hollow shaft 902 to rotate, which in turn drives brush 903 to rotate. The rotating brush 903 cleans the surface of the turntable 7, sweeping away debris and dust adhering to its surface. Furthermore... On one hand, the rotation of gear 906 drives the meshing gear 104 to rotate, which in turn drives the rotating shaft 102 to rotate. The rotating shaft 102 drives the fan blade 103 to rotate inside the dust collection chamber 101. After the fan blade 103 rotates, a negative pressure is formed inside the dust collection chamber 101. The dust collection chamber 101 is connected to the hollow shaft 902 through the air pipe 105, which in turn generates a negative pressure at the suction port 106 on the circumferential surface of the hollow shaft 902. This suctions the dust and debris swept up by the brush 903 into the hollow shaft 902, and then sends it into the dust collection chamber 101 through the air pipe 105 for collection. This completes the cleaning and dust removal operation of the turntable 7, ensuring that the surface of the turntable 7 is clean and flat, and preventing dust and debris from affecting the flatness of the injection molded parts and the accuracy of subsequent dimensional inspection.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for detecting the dimensional accuracy of injection molded parts, comprising a conveyor frame (1), characterized in that: The top of the conveying platform (1) is provided with a screw conveyor (2), and a guide groove (3) is fixedly connected to the circumferential surface of the screw conveyor (2). A monitoring platform (4) is provided on the side of the conveying platform (1), and a frame (5) is provided on the top of the monitoring platform (4). A central motor (6) is fixedly connected to the top of the conveying platform (1), and a turntable (7) is fixedly connected to the output shaft of the central motor (6). A sliding adjustment support structure (8) is provided on the top of the conveying platform (1). The sliding adjustment support structure (8) includes a slide rail (801), which is fixedly connected to the top of the conveyor frame (1). A sliding plate (802) is slidably connected to the top of the slide rail (801). A locking seat (803) is slidably connected to the top side of the sliding plate (802). An equipment mounting plate (804) is slidably connected to the side of the locking seat (803). A finished product storage box (805) is provided on the side of the equipment mounting plate (804). A data display screen (806) is fixedly connected to the bottom of the frame (5). A high-pressure cylinder (807) is fixedly connected to the bottom of the frame (5).

2. The injection molding part dimensional accuracy testing equipment according to claim 1, characterized in that: The slide rail (801), sliding plate (802), locking seat (803) and equipment mounting plate (804) are arranged in four sets and are arranged in a ring array along the vertical central axis of the central motor (6).

3. The injection molding part dimensional accuracy testing equipment according to claim 2, characterized in that: The end of the guide groove (3) away from the screw conveyor (2) is located above the turntable (7), and the high-pressure cylinder (807) is located above the turntable (7).

4. The injection molding part dimensional accuracy testing equipment according to claim 3, characterized in that: The top of the monitoring platform (4) is provided with a rotating and tidying device (9). The rotating and tidying device (9) includes a support frame (901), which is fixedly connected to the top of the monitoring platform (4). A hollow shaft (902) is rotatably connected through the side of the monitoring platform (4). A brush (903) is inserted into the circumferential surface of the hollow shaft (902). A pulley (904) is fixedly connected to the circumferential surface of the hollow shaft (902). A moving part is fixedly connected to the top of the monitoring platform (4). A power motor (905) is provided, and a gear (906) is fixedly connected to the output shaft of the power motor (905). A transmission plate (907) is fixedly connected to the top of the monitoring platform (4). A transmission shaft (908) is rotatably connected through the side of the transmission plate (907). A pulley (909) is fixedly connected to the circumferential surface of the transmission shaft (908). A belt (910) is provided on the circumferential surface of the pulley (909). A gear (911) is fixedly connected to one end of the transmission shaft (908).

5. The injection molding part dimensional accuracy testing equipment according to claim 4, characterized in that: The pulley one (904) and pulley two (909) are connected by a belt (910), and the gear one (906) and gear two (911) mesh with each other. The number of teeth of the gear one (906) is greater than the number of teeth of the gear two (911).

6. The injection molding part dimensional accuracy testing equipment according to claim 5, characterized in that: The circumferential surface of the drive shaft (908) passes through and is rotatably connected to the side of the drive plate (907), and the circumferential surface of the brush (903) abuts against the top of the turntable (7).

7. The injection molding part dimensional accuracy testing equipment according to claim 6, characterized in that: The top of the monitoring platform (4) is provided with a negative pressure dust collection structure (10), which includes a dust collection chamber (101). The dust collection chamber (101) is fixedly connected to the top of the monitoring platform (4). A rotating shaft (102) is rotatably connected through the side of the dust collection chamber (101). A fan blade (103) is fixedly connected to one end of the rotating shaft (102). A gear three (104) is fixedly connected to the end of the rotating shaft (102) away from the fan blade (103). An air pipe (105) is fixedly connected to the top of the dust collection chamber (101). A dust suction port (106) is opened on the circumferential surface of the hollow shaft (902).

8. The injection molding part dimensional accuracy testing equipment according to claim 7, characterized in that: The third gear (104) meshes with the first gear (906), and the first gear (906) has more teeth than the third gear (104).

9. The injection molding part dimensional accuracy testing equipment according to claim 8, characterized in that: The dust collection chamber (101) and the hollow shaft (902) are connected to each other through an air pipe (105).

10. The injection molding part dimensional accuracy testing equipment according to claim 9, characterized in that: The fan blades (103) are located inside the dust collection chamber (101), and the number of suction ports (106) is set in several groups.

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