Injection mold sealing test device

Abstract

The present invention relates to the technical field of sealing detection, and in particular to an injection mold sealing test device, comprising a detection table, a top box fixedly connected to the top of the detection table, a pair of lower L-shaped plates for placing the mold to be tested are arranged on the detection table, the lower L-shaped plates are provided with a clamping mechanism for clamping the mold, an airtightness tester for testing the mold sealing is arranged on the top box, one of the side walls of the lower L-shaped plates is penetrated and fixedly connected with a sealing plug, an extended hose is fixedly connected between the sealing plug and the inflation end of the airtightness tester, a rectangular groove is penetrated and opened on the top of the top box, a top plate is slidably connected to the inner side of the rectangular groove, and a cleaning mechanism for cleaning the mold is arranged on the top plate. The present invention can fully and automatically clean the fitting surface of the injection mold before testing through the mutual cooperation of the cleaning mechanism and the transmission mechanism, and can collect the cleaned debris without manual cleaning, thereby greatly improving the detection efficiency and detection accuracy of the device.

Description

Technical Field

[0001] The invention relates to the technical field of sealing detection, and in particular to a sealing test device for an injection mold. Background Art

[0002] Injection molds are various molds and tools for obtaining the required products by injecting heated and melted materials to be molded. In short, molds are tools used to make molded objects. The airtightness of injection molds is an important indicator of whether the mold meets the requirements. Once the mold leaks, it will cause material leakage, increase burrs on the injection molded parts, and change the size of the injection molded parts. Severe cases will directly lead to the scrapping of parts. Therefore, after the injection mold is produced, a sealing test is required to ensure product quality. The existing mold sealing detection methods mainly include water immersion method, dry air method and tracer gas method.

[0003] The prior art discloses an injection mold sealing test device and a test method with publication number CN112304509B. The first lifting cylinder drives the lifting seat to descend, so that the movable mold descends and closes with the static mold. The second lifting cylinder is then controlled to drive the injection nozzle to descend, so that the injection nozzle is inserted into the second injection port on the movable mold. The pressure pump is then controlled to inject pressurized silicone oil into the second injection port through the injection nozzle. The outside of the injection mold is then checked for silicone oil leakage. Since silicone oil has good thermal stability and a high boiling point, the upper limit of the test temperature of the movable mold during the test can be greatly increased, so that the test temperature is closer to the actual injection temperature, thereby improving the credibility of the test results.

[0004] Although the actual temperature during injection molding can be simulated for testing, there are still some defects in the actual testing process. Since some impurities such as dirt, debris, and residue will adhere to the joints of the injection mold during the production process, if the dirt, debris, and residue are not cleaned, it will not only affect the sealing effect when the dynamic mold and the static mold are connected, but also affect the test results of the device. However, the device cannot automatically clean the joints of the injection mold before the test, and the staff is required to clean it before the test, which is not only time-consuming and labor-intensive, but also affects the detection efficiency of the device.

[0005] Therefore, an injection mold sealing test device is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an injection mold sealing test device.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: an injection mold sealing test device, including a test table, a top box is fixedly connected to the top of the test table, a pair of lower L-shaped plates for placing the mold to be tested are provided on the test table, and a clamping mechanism for clamping the mold is provided on the lower L-shaped plates, and an airtightness detector for testing the mold sealing is provided on the top box, one of the side walls of the lower L-shaped plates is fixedly connected with a sealing plug, an extended hose is fixedly connected between the sealing plug and the inflation end of the airtightness detector, a rectangular groove is opened through the top of the top box, a top plate is slidably connected to the inner side of the rectangular groove, and a cleaning mechanism for cleaning the mold is provided on the top plate;

[0008] The cleaning mechanism includes an upper servo electric telescopic cylinder, a disc is rotatably connected to the bottom end of the side wall of the top plate, the upper servo electric telescopic cylinder is fixedly connected to the top of the top box, and the output end of the upper servo electric telescopic cylinder is fixedly connected to the top of the top plate, the side wall of the top plate is rotatably connected to a swing plate located above the disc, a slide groove is penetrated through the side wall of the swing plate, a slide cylinder is provided at the eccentric part of the side wall of the disc and located on the inner side of the slide groove, a gear is provided on the side wall of the top plate and on the top side away from the disc, a transmission mechanism is provided between the gear and the disc, a rack meshing with the gear is fixedly connected to the inner side of the rectangular groove, cleaning plates are fixedly connected to both sides of the bottom of the swing plate, and a plurality of cleaning brushes are fixedly connected to the side away from the cleaning plate.

[0009] In the above technical solution, further, the transmission mechanism includes a chain, the side wall of the disc passes through the top plate and is fixedly connected to a driven sprocket, the side wall of the top plate is rotatably connected to a driving sprocket above the driven sprocket, the chain transmission is connected between the driving sprocket and the driven sprocket, and the gear is fixedly connected to the side wall of the driving sprocket.

[0010] In the above technical solution, further, a cleaning brush close to one side of the sealing plug is lengthened.

[0011] In the above technical solution, further, a fixed plate is fixedly connected to the top of the detection platform, one of the lower L-shaped plates is fixedly connected to the top of the fixed plate, a guide frame is fixedly connected to the top of the detection platform, the outer wall of the guide frame is slidably connected to the sliding plate, and the other lower L-shaped plate is fixedly connected to the top of the sliding plate, the inner side of the guide frame is rotatably connected to a screw, the side wall of the top box is fixedly connected to a servo motor, the output end of the servo motor passes through the top box and is fixedly connected to the side wall of the screw, the screw passes through a thread and is connected to the inner wall of the sliding plate, and the servo motor and the upper servo electric telescopic cylinder are electrically connected to the controller through wires.

[0012] In the above technical solution, further, a lower travel switch is fixedly connected to the top of the detection platform, a touch plate for touching the lower travel switch is fixedly connected to the side wall of the sliding plate, and the lower travel switch is electrically connected to the controller through a wire.

[0013] In the above technical solution, further, the side wall of the top plate is fixedly connected with a push rod, and an upper travel switch is fixedly connected to the top inner side of the top box and next to the push rod, and the upper travel switch is electrically connected to the controller through a wire.

[0014] In the above technical solution, further, a lower servo electric telescopic cylinder is fixedly connected through the rear side of the detection platform, a collection box is slidably connected through the inner wall of the top box, a connecting plate is fixedly connected between the output end of the lower servo electric telescopic cylinder and the rear side of the collection box, a back plate is fixedly connected to the top end of the front side of the collection box, an upper L-shaped plate is fixedly connected to the top of the detection platform, and touch sensors are provided on one side of the upper L-shaped plate close to the top box and at a position corresponding to the back plate, and the touch sensor and the lower servo electric telescopic cylinder are electrically connected to the controller through wires respectively.

[0015] In the above technical solution, further, the top of the cleaning plate is fixedly connected with a nozzle, and a three-way pipe is fixedly connected between the nozzles, and the other end of the three-way pipe is connected to an external fan through a spring tube.

[0016] In the above technical scheme, further, the side wall of the disc is penetrated by a T-slot, a T-pin is slidably connected to the inner side of the T-slot, the slide is fixedly connected to the side wall of the T-pin, and the side wall of the slide is penetrated by a tooth plate which is slidably connected, the side wall of the disc is fixedly connected with a positioning frame located outside the T-slot, a plurality of tooth grooves meshing with the tooth plate are opened on the inner side of the positioning frame, the side wall of the tooth plate is fixedly connected with an L-shaped pressing plate and is arranged through the outer wall of the slide, and a pair of springs are fixedly connected between the side wall of the pressing plate and the inner wall of the slide.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the cooperation of the cleaning mechanism and the transmission mechanism, the fitting surface of the injection mold can be fully and automatically cleaned before testing, and the cleaned debris can be collected without manual cleaning, which greatly improves the detection efficiency and accuracy of the device.

[0019] 2. Through the cooperation of the positioning frame, tooth plate, T-pin and spring structures, the cleaning range can be adjusted according to the injection molds of different lengths, thereby improving the general performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front three-dimensional structure of the testing device of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the detection platform of the present invention from top view;

[0022] Figure 3 It is a schematic diagram of the top box of the present invention when viewed from above;

[0023] Figure 4 The present invention is attached Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 5 It is a schematic diagram of the full-cut three-dimensional structure of the top box side of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the disc of the present invention in a top view and in full section;

[0026] Figure 7 It is a schematic diagram of the overall appearance structure of the cleaning mechanism of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the slide tube of the present invention in a top view and in full section;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the side of the disc of the present invention;

[0029] Fig.10 It is a schematic diagram of the framework of the test device control system of the present invention.

[0030] In the figure: 1. test table; 2. top box; 3. lower L-shaped plate; 4. clamping mechanism; 5. airtightness tester; 6. sealing plug; 7. extension hose; 8. rectangular groove; 9. top plate; 10. upper servo electric telescopic cylinder; 11. disc; 12. swing plate; 13. slideway; 14. slide cylinder; 15. gear; 16. rack; 17. cleaning plate; 18. cleaning brush; 19. chain; 20. driven sprocket; 21. driving sprocket; 22. fixed plate; 23. guide frame; 24. Sliding plate; 25. Servo motor; 26. Push rod; 27. Upper stroke switch; 28. Lower stroke switch; 29. ​​Touch plate; 30. Lower servo electric telescopic cylinder; 31. Collecting box; 32. Connecting plate; 33. Abutment plate; 34. Upper L-shaped plate; 35. Touch sensor; 36. Injection head; 37. Three-way pipe; 38. Spring tube; 39. T-slot; 40. T-pin; 41. Tooth plate; 42. Positioning frame; 43. Tooth groove; 44. Press plate; 45. Spring; 46. Screw. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] like Figure 1-Figure 10 The injection mold sealing test device shown in the figure comprises a test table 1, a top box 2 is fixedly connected to the top of the test table 1, a pair of lower L-shaped plates 3 for placing the mold to be tested are arranged on the test table 1, and a clamping mechanism 4 for clamping the mold is arranged on the lower L-shaped plates 3, and an airtightness detector 5 for testing the mold sealing is arranged on the top box 2, and the airtightness detector 5 mainly judges the sealing performance of the mold by adding gas into the mold through the injection port of the mold and detecting whether the air pressure in the mold cavity is leaked, a sealing plug 6 is fixedly connected through the side wall of one of the lower L-shaped plates 3, and an extended hose 7 is fixedly connected between the sealing plug 6 and the inflation end of the airtightness detector 5, a rectangular groove 8 is opened through the top of the top box 2, and a top plate 9 is slidably connected to the inner side of the rectangular groove 8, and a cleaning mechanism for cleaning the mold is arranged on the top plate 9;

[0033] The cleaning mechanism includes an upper servo electric telescopic cylinder 10, a disc 11 is rotatably connected to the bottom end of the side wall of the top plate 9, the upper servo electric telescopic cylinder 10 is fixedly connected to the top of the top box 2, and the output end of the upper servo electric telescopic cylinder 10 is fixedly connected to the top of the top plate 9, the side wall of the top plate 9 is rotatably connected to a swing plate 12 located above the disc 11, a slide groove 13 is penetrated through the side wall of the swing plate 12, a slide cylinder 14 is arranged at the eccentric part of the side wall of the disc 11 and inside the slide groove 13, a gear 15 is arranged on the side wall of the top plate 9 and at the top of the side away from the disc 11, a transmission mechanism is arranged between the gear 15 and the disc 11, a rack 16 meshing with the gear 15 is fixedly connected to the inner side of the rectangular groove 8, cleaning plates 17 are fixedly connected to both sides of the bottom of the swing plate 12, and a plurality of cleaning brushes 18 are fixedly connected to the side away from the cleaning plate 17;

[0034] The transmission mechanism includes a chain 19, a side wall of the disc 11 passes through the top plate 9 and is fixedly connected to a driven sprocket 20, a side wall of the top plate 9 is rotatably connected to a driving sprocket 21 located above the driven sprocket 20, the chain 19 is transmission-connected between the driving sprocket 21 and the driven sprocket 20, and the gear 15 is fixedly connected to the side wall of the driving sprocket 21, and a cleaning brush 18 near one side of the sealing plug 6 is lengthened. By lengthening the cleaning brush 18, the cleaning brush 18 can pass through the positioning column on the movable mold to avoid the cleaning plate 17 being blocked by the positioning column on the movable mold, which affects the normal operation of the device;

[0035] When cleaning the mold joint, the upper servo electric telescopic cylinder 10 is controlled to start and drive the top plate 9 to slide downward in the rectangular groove 8, thereby driving the swing plate 12, the cleaning plate 17 and the cleaning brush 18 to slide downward. At the same time, since the gear 15 is meshed with the rack 16, the gear 15 will be driven to rotate when the top plate 9 moves downward, thereby driving the driving sprocket 21 to rotate, and then the driven sprocket 20 is driven to rotate through the chain 19, and at the same time, the disc 11 and the slide cylinder 14 are driven to rotate, so that the slide cylinder 14 slides in the inner circumference of the slide groove 13. The swing plate 12 is pushed to rotate around the top hinge, thereby driving the cleaning plate 17 at the other end of the swing plate 12 to swing back and forth left and right, and at the same time, the servo electric telescopic cylinder 10 drives the top plate 9 to move downward, so as to achieve a comprehensive cleaning of the joint between the dynamic mold and the static mold. In this process, since the cleaning brush 18 moves downward while swinging left and right, the length of the cleaning brush 18 is set to be longer, so that it can clean below the last cleaning position when swinging back, avoiding the phenomenon of not being able to clean. Finally, after the cleaning is completed, the servo electric telescopic cylinder 10 can be controlled to be retracted.

[0036] In order to further improve the degree of automation of the device, a fixed plate 22 is fixedly connected to the top of the detection platform 1, one of the lower L-shaped plates 3 is fixedly connected to the top of the fixed plate 22, a guide frame 23 is fixedly connected to the top of the detection platform 1, and a sliding plate 24 is slidably connected to the outer wall of the guide frame 23, and another lower L-shaped plate 3 is fixedly connected to the top of the sliding plate 24, and a screw 46 is rotatably connected to the inner side of the guide frame 23. A servo motor 25 is fixedly connected to the side wall of the top box 2, and the output end of the servo motor 25 passes through the top box 2 and is fixedly connected to the side wall of the screw 46. The screw 46 penetrates and is threadedly connected to the inner wall of the sliding plate 24, and the servo motor 25 and the upper servo electric telescopic cylinder 10 are both electrically connected to the controller through wires;

[0037] A lower travel switch 28 is fixedly connected to the top of the detection platform 1, a touch plate 29 for touching the lower travel switch 28 is fixedly connected to the side wall of the sliding plate 24, and the lower travel switch 28 is electrically connected to the controller through a wire, a push rod 26 is fixedly connected to the side wall of the top plate 9, and an upper travel switch 27 is fixedly connected to the top of the inner top of the top box 2 and located next to the push rod 26, and the upper travel switch 27 is electrically connected to the controller through a wire, a lower servo electric telescopic cylinder 30 is fixedly connected to the rear side of the detection platform 1, and a collecting device 30 is slidably connected to the inner wall of the top box 2 Box 31, through which the impurities swept by the cleaning brush 18 can be collected, a connecting plate 32 is fixedly connected between the output end of the lower servo electric telescopic cylinder 30 and the rear side of the collecting box 31, a stop plate 33 is fixedly connected to the top of the front side of the collecting box 31, and an upper L-shaped plate 34 is fixedly connected to the top of the testing table 1. A touch sensor 35 is provided on the side of the upper L-shaped plate 34 close to the top box 2 and at a position corresponding to the stop plate 33. The touch sensor 35 and the lower servo electric telescopic cylinder 30 are electrically connected to the controller through wires respectively;

[0038] After the injection mold is clamped on the lower L-shaped plate 3 by the clamping mechanism 4, the servo motor 25 can be controlled to start and drive the screw 46 to rotate, thereby driving the threaded sliding plate 24 to move on the guide frame 23, and at the same time driving one of the lower L-shaped plates 3 and the movable mold to move toward the static mold side. Then, when the sliding plate 24 drives the touch plate 29 to move and touch the sensing end of the lower stroke switch 28, the lower stroke switch 28 will transmit a signal to the controller, and then the controller controls the lower servo electric telescopic cylinder 30 to start and retract the connecting plate 32, and at the same time controls the servo motor 25 to close, thereby driving the collection box 31 to move between the fixed plate 22 and the sliding plate 24, and then when the collection box 31 moves to the upper L-shaped plate 34, it will drive the abutment plate 33 to touch the touch sensor 35, and then The touch sensor 35 transmits a signal to the controller, and the controller controls the lower servo electric telescopic cylinder 30 to close, and at the same time controls the upper servo electric telescopic cylinder 10 of the cleaning mechanism to start cleaning between the movable mold and the static mold. After the cleaning is completed, when the upper servo electric telescopic cylinder 10 drives the top plate 9 to reset, it will drive the push rod 26 to touch the upper stroke switch 27, and then the upper stroke switch 27 transmits a signal to the controller, and then the controller controls the lower servo electric telescopic cylinder 30 to start moving the collection box 31 out, and then it will drive the abutment plate 33 to touch the touch sensor 35 at the other end, and the touch sensor 35 will transmit a signal to the controller, and finally the controller controls the servo motor 25 to start the movable mold and the static mold to fit together for testing, thereby realizing automatic cleaning of the device and further improving the working efficiency of the device.

[0039] In order to further improve the cleaning effect of the device, a nozzle 36 is fixedly connected to the top of the cleaning plate 17, and a three-way pipe 37 is fixedly connected between the nozzles 36. The other end of the three-way pipe 37 is connected to the external fan through a spring tube 38. While cleaning the injection mold, the external fan can be controlled to start and transport the wind through the spring tube 38 and the three-way pipe 37 to the nozzle 36 for spraying, so that the area cleaned by the cleaning brush 18 can be purged, further improving the cleaning effect of the mold and ensuring the accuracy of the test. Moreover, through the setting of the spring tube 38, the spring tube 38 can be stretched when the upper servo electric telescopic cylinder 10 drives the cleaning plate 17 to move downward, which not only ensures the connection between the external fan and the nozzle 36, but also does not hinder the normal movement of the cleaning plate 17.

[0040] In order to adjust the cleaning range according to injection molds of different lengths, a T-slot 39 is provided through the side wall of the disc 11, and a T-pin 40 is slidably connected to the inner side of the T-slot 39, and the slide 14 is fixedly connected to the side wall of the T-pin 40. By setting the T-slot 39 and the T-pin 40, the sliding position of the slide 14 can be restricted to ensure that the slide 14 will not fall off the disc 11, thereby improving the stability of the device during operation, and a tooth plate 41 is slidably connected to the side wall of the slide 14, and a positioning frame 42 is fixedly connected to the side wall of the disc 11 and located outside the T-slot 39, and a plurality of tooth grooves 43 meshing with the tooth plate 41 are provided on the inner side of the positioning frame 42, and an L-shaped pressing plate 44 is fixedly connected to the side wall of the tooth plate 41 and is set through the outer wall of the slide 14, and a pair of springs 45 are fixedly connected between the side wall of the pressing plate 44 and the inner wall of the slide 14;

[0041] When the cleaning range of the cleaning brush 18 needs to be adjusted according to the length of the test mold, the pressing plate 44 is first pressed inwardly to drive the tooth plate 41 to slide inwardly, so that the tooth plate 41 slides out of the meshing position with the tooth groove 43, and the spring 45 is compressed at the same time, so that the position restriction of the slide cylinder 14 can be released, and then the sliding slide cylinder 14 is pushed downward to drive the T-pin 40 to slide in the T-slot 39, thereby realizing the adjustment of the eccentric position of the slide cylinder 14 on the disc 11, and then the curvature of the extrusion swing plate 12 can be expanded, thereby increasing the range of the cleaning brush 18 sweeping the mold, realizing the adjustment of the cleaning range, and different lengths of molds can be cleaned, improving the application range of the device, and finally after the adjustment is completed, the pressing plate 44 can be released, and then the elastic force of the spring 45 pushes the pressing plate 44 and the tooth plate 41 to reset, thereby pushing the tooth plate 41 to the meshing position with the tooth groove 43, and realizing the fixation of the adjusted position of the slide cylinder 14.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for testing the sealing property of an injection mold, comprising a test bench (1), a top box (2) fixedly connected to the top of the test bench (1), a pair of lower L-shaped plates (3) for placing the mold to be tested are provided on the test bench (1), each of the lower L-shaped plates (3) is provided with a clamping mechanism (4) for clamping the mold, an airtightness detector (5) for testing the sealing property of the mold is provided on the top box (2), a sealing plug (6) is fixedly connected to the side wall of one of the lower L-shaped plates (3), an extension hose (7) is fixedly connected between the sealing plug (6) and the inflation end of the airtightness detector (5), and the device is characterized in that: A rectangular groove (8) is formed through the top of the top box (2), a top plate (9) is slidably connected to the inside of the rectangular groove (8), and a cleaning mechanism for cleaning the mold is provided on the top plate (9); The cleaning mechanism comprises an upper servo electric telescopic cylinder (10), the bottom end of the side wall of the top plate (9) is rotatably connected to a disc (11), the upper servo electric telescopic cylinder (10) is fixedly connected to the top of the top box (2), and the output end of the upper servo electric telescopic cylinder (10) is fixedly connected to the top of the top plate (9), the side wall of the top plate (9) is rotatably connected to a swing plate (12) located above the disc (11), the side wall of the swing plate (12) is penetrated by a slide groove (13), and the side wall of the disc (11) is eccentrically A slide cylinder (14) is arranged at the inner side of the slide groove (13); a gear (15) is arranged at the top of the side wall of the top plate (9) and away from the disc (11); a transmission mechanism is arranged between the gear (15) and the disc (11); a rack (16) meshing with the gear (15) is fixedly connected to the inner side of the rectangular groove (8); cleaning plates (17) are fixedly connected to both sides of the bottom of the swing plate (12); and a plurality of cleaning brushes (18) are fixedly connected to the side away from the cleaning plate (17); The side wall of the disk (11) is penetrated by a T-shaped slot (39), and a T-shaped pin (40) is slidably connected to the inner side of the T-shaped slot (39). The slide cylinder (14) is fixedly connected to the side wall of the T-shaped pin (40), and a tooth plate (41) is slidably connected to the side wall of the slide cylinder (14). A positioning frame (42) is fixedly connected to the side wall of the disk (11) and is located outside the T-shaped slot (39). The inner side of the positioning frame (42) is provided with a plurality of tooth grooves (43) meshing with the tooth plate (41). An L-shaped pressing plate (44) is fixedly connected to the side wall of the tooth plate (41) and is arranged to penetrate the outer wall of the slide cylinder (14). A pair of springs (45) are fixedly connected between the side wall of the pressing plate (44) and the inner wall of the slide cylinder (14).

2. The device for testing the sealing performance of injection mold according to claim 1, characterized in that: The transmission mechanism comprises a chain (19), the side wall of the disc (11) passes through the top plate (9) and is fixedly connected to a driven sprocket (20), the side wall of the top plate (9) is rotatably connected to a driving sprocket (21) located above the driven sprocket (20), the chain (19) is transmission-connected between the driving sprocket (21) and the driven sprocket (20), and the gear (15) is fixedly connected to the side wall of the driving sprocket (21).

3. The injection mold sealing test device according to claim 1, characterized in that: The cleaning brush (18) close to one side of the sealing plug (6) is extended.

4. The injection mold sealing test device according to claim 1, characterized in that: The top of the detection platform (1) is fixedly connected to a fixed plate (22), one of the lower L-shaped plates (3) is fixedly connected to the top of the fixed plate (22), the top of the detection platform (1) is fixedly connected to a guide frame (23), the outer wall of the guide frame (23) is slidably connected to a sliding plate (24), the other lower L-shaped plate (3) is fixedly connected to the top of the sliding plate (24), the inner side of the guide frame (23) is rotatably connected to a screw rod (46), the side wall of the top box (2) is fixedly connected to a servo motor (25), the output end of the servo motor (25) passes through the top box (2) and is fixedly connected to the side wall of the screw rod (46), the screw rod (46) penetrates and is threadedly connected to the inner wall of the sliding plate (24), and the servo motor (25) and the upper servo electric telescopic cylinder (10) are both electrically connected to a controller via a wire.

5. The device for testing the sealing performance of injection mold according to claim 4, characterized in that: A lower travel switch (28) is fixedly connected to the top of the detection platform (1), a touch plate (29) for touching the lower travel switch (28) is fixedly connected to the side wall of the sliding plate (24), and the lower travel switch (28) is electrically connected to the controller via a wire.

6. The device for testing the sealing performance of injection mold according to claim 1, characterized in that: A push rod (26) is fixedly connected to the side wall of the top plate (9), and an upper travel switch (27) is fixedly connected to the top inner side of the top box (2) and located next to the push rod (26). The upper travel switch (27) is electrically connected to the controller via a wire.

7. The device for testing the sealing performance of injection mold according to claim 1, characterized in that: A lower servo electric telescopic cylinder (30) is fixedly connected to the rear side of the detection platform (1), a collection box (31) is slidably connected to the inner wall of the top box (2), a connecting plate (32) is fixedly connected between the output end of the lower servo electric telescopic cylinder (30) and the rear side of the collection box (31), a stop plate (33) is fixedly connected to the top of the front side of the collection box (31), an upper L-shaped plate (34) is fixedly connected to the top of the detection platform (1), and a touch sensor (35) is provided on the side of the upper L-shaped plate (34) close to the top box (2) and at a position corresponding to the stop plate (33), and the touch sensor (35) and the lower servo electric telescopic cylinder (30) are respectively electrically connected to a controller via wires.

8. The device for testing the sealing performance of injection mold according to claim 1, characterized in that: The tops of the cleaning plates (17) are fixedly connected to nozzles (36), three-way pipes (37) are fixedly connected between the nozzles (36), and the other ends of the three-way pipes (37) are connected to an external fan via a spring pipe (38).

Images