Floating cylinder oil leakage detection device and detection method for vertical turntable of injection molding machine

Abstract

The invention discloses a floating cylinder oil leakage detection device and method for a vertical turntable of an injection molding machine, and the device comprises a detection device main body which is internally provided with an oil pressure supercharging device which achieves the control of supercharging through a control device, and a plurality of limiting coating devices which are used for coating a to-be-detected floating cylinder. The limiting wrapping device comprises a plurality of oil cylinder supporting frames with sliding grooves, and elastic jacking and pressing components are arranged in the sliding grooves. According to the detection device, simultaneous batch detection of multiple floating cylinders is realized, the structure is simple and compact, the occupied space is small, the production efficiency is greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to a floating cylinder oil leakage detection device and a detection method for a vertical turntable of an injection molding machine. Background Art

[0002] Multi-color injection molding is a varied and increasingly popular injection molding process that combines one polymer with another already molded polymer. It can achieve the design integration of multiple plastic products with great cost advantages, reducing or eliminating the low production efficiency and product defects caused by traditional secondary assembly, bonding or welding processes.

[0003] Multi-color injection molding machines usually adopt special turntable structures and mold designs. Among them, the vertical turntable structure has attracted widespread attention because of its fast vertical rotation speed and precise positioning, as well as its ability to quickly switch workstations, which can improve production continuity and efficiency.

[0004] The vertical turntable cannot contact the die plate when rotating to avoid wear and tear. At present, static pressure support devices, i.e. floating cylinders, are evenly arranged behind the vertical turntable. Before the vertical turntable rotates, the floating cylinders can hold the turntable and separate it from the die plate.

[0005] Before using the floating cylinder, it is necessary to determine whether it is leaking oil and ensure that it is well sealed. Leaking oil in the floating cylinder will cause the vertical turntable to be unable to be supported normally, affecting the verticality of the turntable, causing friction with the mold plate, prone to failure, and affecting the production schedule. Therefore, it is necessary to test the oil cylinder for sealing before assembly, but the current oil leakage detection is mostly single-cylinder detection, which is complicated to operate, low in efficiency, and cannot detect multiple floating cylinders at the same time.

[0006] Chinese patent document CN215065103U discloses a cylinder oil leakage detection device, but it can only perform single cylinder detection and cannot achieve batch detection. Summary of the invention

[0007] The purpose of the present invention is to solve the problems of low efficiency of existing floating cylinder oil leakage detection single detection and inability to realize batch detection of multiple floating cylinders, and to provide a floating cylinder oil leakage detection device and detection method for the vertical turntable of an injection molding machine, which can realize automatic and batch detection of floating cylinder oil leakage, has a simple and compact structure, occupies a small space, can be freely transferred in the machine assembly area, effectively reduces the assembly workload, and improves the assembly efficiency.

[0008] The technical solution adopted by the present invention to achieve its first invention purpose is: a floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine, including a detection device body, inside the detection device body is provided with an oil pressure boosting device for controlling the pressure increase through a control device and a plurality of limit covering devices for covering the floating cylinder to be detected, the limit covering device includes a plurality of oil cylinder support frames with slide grooves, and an elastic top pressure component is provided inside the slide grooves. The invention discloses an oil leakage detection device for a floating cylinder of a vertical turntable of an injection molding machine. A detection device body is manufactured according to the state of force borne by the floating cylinder in the process of lifting the vertical turntable out, and a limit covering device for simulating the lifting process of the vertical turntable is arranged inside the detection device body. When the floating cylinder is detected, the floating cylinder is arranged inside the slide groove of the oil cylinder support frame so that the floating cylinder contacts the elastic top pressure component. Then the floating cylinder is connected to the oil pressure boosting device. The oil pressure boosting device is controlled by a control device to perform oil pressure boosting on the floating cylinder, so as to detect whether there is oil leakage in the floating cylinder when the oil pressure is boosted to the set lifting pressure. The detection device can realize batch detection of multiple floating cylinders at a time, with high detection effect, which greatly improves the work efficiency and the subsequent assembly efficiency of the floating cylinder. Moreover, the detection device has a simple structure and is easy to operate.

[0009] Preferably, the elastic force pressing component includes an elastic plate and an elastic member, one end of the elastic member is fixed in the slide groove, and the other end is connected to the elastic plate and drives the elastic plate to perform telescopic movement. The elastic force pressing component mainly simulates the effect of the ejection force on the floating cylinder during the ejection process of the vertical turntable through an elastic plate and elastic members arranged at the four corners of the elastic plate. The floating cylinder applies pressure to the elastic plate through oil pressure. The elastic plate performs compression movement under the action of the floating cylinder to simulate the lifting action of the vertical turntable, so as to judge whether the floating cylinder has oil leakage according to the oil pressure before and after lifting. The operation is convenient and quick, and batch detection can be realized.

[0010] Preferably, the slideway is in a T-shaped slideway structure and matches the floating cylinder to be detected. The slideway is provided to facilitate the floating cylinder to slide in the slideway so as to apply pressure to the elastic plate.

[0011] Preferably, the position-limiting covering device further comprises a fixing plate for connecting with the main body of the detection device, and the oil cylinder support frames are evenly distributed on the fixing plate. The position-limiting covering device further comprises a fixing plate, which is provided for the convenience of fixed connection with the main body of the detection device and the convenience of setting the oil cylinder support frames, so that several oil cylinder support frames can be set at one time to meet the purpose of batch detection.

[0012] Preferably, the oil pressure boosting device comprises an oil tank, an oil pump integrated on the oil tank, a motor driving the oil pump, and a valve block assembly for achieving communication with the floating cylinder to be detected. The oil pressure boosting device mainly comprises an oil tank, an oil pump connected to the oil tank, and a motor driving the oil pump. In order to achieve the connection between the oil and the floating cylinder, the valve block assembly is used to realize the branching of the oil delivered by the oil pump into different floating cylinders, thereby achieving the purpose of pressurizing the floating cylinder.

[0013] Preferably, one end of the oil pump is connected to the inside of the oil tank through an oil suction pipe, the other end of the oil pump is connected to the valve block assembly through a connecting pipe, and is connected to the oil tank through an oil return pipe below the oil pump.

[0014] Preferably, a ball valve and a pressure gauge are provided on the connecting pipe. The pressure gauge can display the oil pressure, and it is convenient to observe whether the oil pressure of the floating cylinder changes before and after the elastic plate of the simulated vertical turntable is lifted, and then judge whether there is oil leakage in the floating cylinder.

[0015] Preferably, the valve block assembly comprises a valve block, a pressure sensor, a relief valve and an oil distributor arranged on the valve block. The valve block assembly mainly comprises a valve block, a pressure sensor, a relief valve and an oil distributor arranged on the valve block, and the oil distributor is used to realize communication with each floating cylinder to be detected.

[0016] Preferably, the main body of the detection device adopts a movable frame structure, and the main body of the detection device includes a bottom plate with movable self-locking rollers, side support frames arranged on both sides of the bottom plate, and a tooling platform arranged on the top of the side support frames. The main body of the detection device adopts a movable structure, which can be moved to any desired position. The tooling platform is arranged to facilitate the placement of the floating cylinder and the hose after the detection, so as to facilitate the subsequent floating cylinder device and facilitate the hose to connect the floating cylinder and the oil distributor during the next detection process.

[0017] The technical solution adopted by the present invention to achieve the second invention object is: a method for detecting oil leakage of a floating cylinder for a vertical turntable of an injection molding machine using the above-mentioned device, characterized in that it includes the following steps: Step 1: Install the floating cylinder to be tested inside the slideway and connect it to the oil pressure boosting device 200 through a hose; Step 2: Control the oil pressure boosting device through the control device to pressurize the floating cylinder and read the pressure value; Step 3: Continue to apply pressure, the elastic pressure component is squeezed and deformed, and after the specified pressure is applied and the pressure value stabilizes, turn off the oil pressure booster, let it stand, and read the pressure value again; Step 4: Compare the pressure values ​​before and after. If the pressure value decreases, it means that there is oil leakage in one of the floating cylinders under test. Step 5: Lay oil-absorbing paper at the joints of the floating cylinder and quickly pick out the floating cylinder with oil leakage by observing the changes in the oil-absorbing paper.

[0018] The detection method can realize batch detection of floating cylinders, is convenient for detection, has high efficiency, greatly improves production efficiency, and reduces production costs.

[0019] The beneficial effects of the present invention are as follows: the floating cylinder oil leakage detection device for the vertical turntable of the injection molding machine realizes rapid oil leakage detection by setting the floating cylinder dedicated to the vertical turntable of the injection molding machine on the limit covering device and forming a limit covering, and realizes simultaneous batch detection of multiple floating cylinders. The floating cylinders that have been tested can be temporarily placed on the top tooling platform for the convenience of the next assembly. Moreover, the detection device has a simple and compact structure, occupies a small area of ​​space, and through the setting of the self-locking roller, the entire device can be freely transferred in the machine assembly area, which can reduce the workload of the assembly personnel and improve the assembly efficiency, greatly improve the production efficiency, and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine according to the present invention; Figure 2 It is a structural schematic diagram of another angle of the floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine of the present invention; Figure 3 It is a structural schematic diagram of the oil pressure boosting device in the present invention; Figure 4 It is a structural schematic diagram of the position-limiting covering device in the present invention; Figure 5 This is a schematic diagram of an application structure of the floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine of the present invention; Figure 6 It is a schematic diagram of the application structure of the floating cylinder oil leakage detection device for the vertical turntable of the injection molding machine (without the main body of the detection device); Figure 7 It is a cross-sectional view of the cooperation between the position limiting covering device and the floating cylinder in the present invention; Figure 8 is a cross-sectional view of the position limiting covering device in Example 3; In the figure: 100, detection device body, 200, oil pressure boosting device, 300, control device, 400, limit covering device, 500, valve block assembly, 600, elastic force pressing component, 1. Bottom plate, 2. Support column, 3. Grip, 4. Tooling platform, 5. Fixed plate, 6. Cylinder support frame, 61. Slideway, 7. elastic plate, 71. spring, 72. elastic block; 8. Oil tank, 9. Motor, 10. Oil pump, 11. Valve block, 12. Pressure sensor, 13. Overflow valve, 14. Suction pipe, 15. Connecting pipe, 16. Oil return pipe, 17. Ball valve, 18. Pressure gauge, 19. Hose, 20. Oil tray, 21. Control panel, 22, floating cylinder, 221, small hole, 222, oil port; 23. Oil distributor, 231. Threaded connector, 232. Quick-connect connector. DETAILED DESCRIPTION

[0021] The various aspects of the present invention are described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0022] Embodiment 1: In Figure 1, Figure 2 , Figure 2 , Figure 4 In the embodiment shown, a floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine includes a detection device body 100, an oil pressure boosting device 200, and a control device 300. The control device includes a control panel 21 and a control system.

[0023] An oil pressure boosting device 200 for controlling the boosting through a control device 300 and a plurality of position limiting covering devices 400 for covering the floating cylinder to be detected are arranged inside the main body of the detection device. The position limiting covering device 400 includes a plurality of oil cylinder support frames 6 with slide grooves, and an elastic top pressure component 600 is arranged inside the slide grooves.

[0024] The elastic pressing component 600 includes an elastic plate and an elastic member, one end of which is fixed in the slide slot, and the other end is connected to the elastic plate and drives the elastic plate to perform telescopic movement. In this embodiment, the elastic member is four springs arranged at the four corners of the elastic plate. In other embodiments, the elastic member can also be an elastic block or other member with elastic telescopic function, as long as it can drive the elastic plate to perform telescopic movement to simulate the vertical turntable lifting movement.

[0025] The detection device body 100 adopts a movable frame structure, and the detection device body includes a bottom plate 1 with movable self-locking rollers, side support frames arranged on both sides of the bottom plate, and a tooling platform 4 arranged on the top of the side support frames. The side support frames can adopt a support column structure or a support plate structure.

[0026] In this embodiment, the detection device body includes a bottom plate 1, support columns 2 arranged on both sides of the bottom plate, and a tooling platform 4 arranged on the top of the support columns. In other embodiments, the side support frame can also be a support rod or a support plate.

[0027] The bottom plate is in the shape of a rectangular plate as a whole. The support columns 2 are arranged on the upper plate surfaces at both ends of the bottom plate. A movable self-locking roller with self-locking function is provided at the lower end of the bottom plate 1.

[0028] The support column 2 is provided with grippers 3 on both sides for easy pushing. The tooling platform 4 is an overall long groove structure arranged above the support column. Multiple long grooves can be arranged on the tooling platform 4. In this embodiment, three long grooves are arranged on the tooling platform. The tooling platform is arranged to facilitate temporary storage of the floating cylinder 22 that has been inspected and the connecting hose for connecting the floating cylinder.

[0029] A plurality of imitation vertical turntables are arranged inside the main body of the detection device to support the position limiting and covering devices 400, and the position limiting and covering devices 400 are used to cover the floating cylinder to be detected.

[0030] The position limiting and covering device includes a fixed plate 5 and a plurality of oil cylinder support frames 6 arranged on the fixed plate 5. The oil cylinder support frame 6 is provided with a horizontally arranged T-shaped slide groove 61, and an elastic force pressing component 600 is arranged inside the T-shaped slide groove. The elastic force pressing component 600 includes a spring 71 arranged on the bottom wall of the T-shaped slide groove 61 and an elastic plate 7 connected to the spring. In other embodiments, the position limiting and covering device can also adopt an integrated oil cylinder support frame structure.

[0031] The fixing plate 5 is arranged on the inner side of the support column to facilitate the connection of the oil cylinder support frame. The oil cylinder support frame 6 is connected and fixed to the fixing plate 5 by screws. In order to realize the simultaneous detection of multiple floating cylinders, multiple oil cylinder support frames 6 are arranged equidistantly on the fixing plate 5. In this embodiment, six oil cylinder support frames 6 are provided, and each oil cylinder support frame is provided with an elastic plate 7 with a T-shaped slide groove. The number of oil pumping support frames can be set to at least 2 according to actual needs, so as to meet the requirements of batch detection.

[0032] The cylinder support frame 6 has a T-shaped groove that does not completely penetrate it. In order to prevent the floating cylinder 22 from having no support on the back of the cylinder liner during detection, the cylinder support frame 6 is provided with an elastic plate 7 with springs at four corners and a T-shaped groove. When the floating cylinder is not placed, the elastic plate 7 is in a natural state due to the support force of the spring. After the floating cylinder to be tested is placed, the spring will be compressed, and the elastic plate 7 will move forward along the T-shaped groove (that is, in the direction of the elastic plate). The cylinder support frame 6 and the elastic plate 7 together form a limiting cover for the floating cylinder, thereby simulating the lifted-out state between the floating cylinder and the vertical turntable.

[0033] An oil pressure boosting device 200 is also provided inside the detection device body 100 . The oil pressure boosting device 200 is connected to the control device 300 and is controlled by the control device to boost the oil pressure.

[0034] The oil pressure boosting device 200 includes an oil tank 8 integrated on the base plate 1 , an oil pump 10 integrated on the oil tank 8 , a motor 9 for driving the oil pump 10 , and a valve block assembly 500 integrated on the oil tank 8 .

[0035] One end of the oil pump 10 is connected to the inside of the oil tank 8 through an oil suction pipe 14, and the other end of the oil pump 10 is connected to the valve block assembly through a connecting pipe 15. The lower part of the oil pump 10 is connected to the oil tank through an oil return pipe 16.

[0036] A ball valve 17 and a pressure gauge 18 are provided on the connecting pipe 15 .

[0037] The valve block assembly 500 includes a valve block 11 , a pressure sensor 12 arranged on the valve block 11 , a relief valve 13 and an oil distributor 23 .

[0038] An oil tank 8 is provided on the base plate 1, a motor 9 is fixedly provided on the upper end of the oil tank 8, an oil pump 10 is provided at the front end of the motor 9, and the oil pump 10 can provide the required pressure. A valve block 11 is provided on the oil tank, and a pressure sensor 12, an overflow valve 13 and an oil circuit distributor 23 are arranged on the valve block 11.

[0039] One end of the oil pump 10 is connected to the oil tank 8 through an oil suction pipe 14, and the other end is connected to the valve block 11 through a connecting pipe 15, and is connected to the oil tank 8 through an oil return pipe 16 below the oil pump. A ball valve 17 and a pressure gauge 18 are provided on the connecting pipe 15.

[0040] In order to realize simultaneous detection of multiple floating cylinders and ensure that the oil pressure applied at each location is equal, one end of the oil circuit distributor 23 is connected to the valve block 11 through a threaded joint 231, and the other end is provided with six oil outlet channels, each of which is provided with a quick-connect connector 232 and is connected to the floating cylinder 22 on the oil cylinder support frame 6 through the hose 19.

[0041] Similarly, in order to quickly connect the oil circuit, the floating cylinder 22 is also provided with a quick-connect connector.

[0042] It should be noted here that a wear-resistant copper block is provided at the front end of the piston rod in the floating cylinder, and another small hole 221 with a smaller diameter on the piston rod of the oil cylinder is a channel for conveying lubricating oil to it. The "lifting" effect of the floating cylinder on the vertical turntable is mainly generated after the oil is pressurized through the oil port 222.

[0043] An oil pan 20 is placed on the bottom plate below the floating cylinder 22. The oil pan 20 is lined with oil-absorbing paper, and the oil pan 20 has a handle for dumping excess oil later. It is convenient to collect the oil leaked from the floating cylinder during the detection process to prevent pollution.

[0044] In addition, the oil receiving pan 20 is connected to the bottom plate 1 via a rubber anti-skid pad to prevent the oil receiving pan from sliding and falling.

[0045] After the detection is completed, the oil in the floating cylinder is returned to the oil tank 8 through the oil outlet hose 19. A control panel 21 is provided on the outside of the support frame column and is electrically connected to the overflow valve 13 and the motor 9. The operation of the overflow valve 13 and the motor 9 is controlled by the control panel 21.

[0046] When in use, the motor 9 drives the oil pump 10 to work, the oil pump 10 sucks oil from the oil tank 8 and transports it to the valve block 11 through the connecting pipe 15. The oil is then evenly distributed by the oil distributor 23 and divided into six paths, and enters the floating cylinder 22 from the hose 19. The pressure gauge 18 will display the value in real time.

[0047] Under the continuous pressure of the oil, the spring is squeezed and deformed, and the elastic plate 7 continues to move forward. After the pressure is increased to the specified pressure, the oil cylinder support frame 6 and the elastic plate 7 together form a limit covering on the floating cylinder 22. The thrust of the floating cylinder 22 on the elastic plate 7 is similar to the thrust on the vertical turntable during actual work. After the pressure indication number is stable, close the ball valve 17 at the front end of the pressure gauge, let it stand for about 20 seconds, read the pressure value again, and compare the pressure values ​​before and after. When the pressure value remains unchanged, it means that there is no oil leakage in the floating cylinder; when the pressure value decreases, it means that there is oil leakage in a certain floating cylinder under detection. Oil absorbing paper is laid at the joint of each floating cylinder 22, and the floating cylinder with oil leakage can be quickly picked out by observing the changes in the oil absorbing paper.

[0048] After the inspection is completed, the floating cylinder that is confirmed to be leak-proof is placed on the tooling platform 4 for the next assembly. After the assembly is completed, the hose 19 is placed on the tooling platform 4 for the next use.

[0049] Compared with the existing technology, this detection device can realize rapid oil leakage detection by forming a limit coating on the floating cylinder dedicated to the vertical turntable of the injection molding machine, and can realize simultaneous detection of six floating cylinders. The floating cylinder after detection can be temporarily placed on the top tooling platform for the next assembly, and the hose required for detection can also be placed here to prevent loss and facilitate the next use. In addition, the detection device has a simple and compact structure, occupies a small area, and through the setting of self-locking rollers, the entire device can be freely transferred in the machine assembly area, which can reduce the workload of our assembly personnel, improve assembly efficiency, and ensure production tasks.

[0050] Embodiment 2: like Figure 5 , Figure 6 , Figure 7 As shown, a method for detecting oil leakage using a floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine comprises the following steps: Step 1: Install the floating cylinder to be tested inside the slideway and connect it to the oil pressure booster device 200 through a hose; the specific operation is to install the floating cylinder to be tested inside the slideway, with the cylinder body of the floating cylinder facing the elastic plate and in contact with the elastic plate, and the piston rod of the floating cylinder facing the end away from the elastic plate and connected to the oil circuit distributor through a hose; Step 2: Control the oil pressure boosting device through the control device to pressurize the floating cylinder and read the pressure value; the specific operation is that the motor 9 drives the oil pump 10 to work, the oil pump 10 sucks oil from the oil tank 8 and delivers it to the valve block 11 through the connecting pipe 15, and the oil is evenly distributed through the oil distributor 23 and enters the floating cylinder 22 through the hose 19, and the pressure gauge 17 will display the value in real time; Step 3: Continue to pressurize, the elastic top pressure component is squeezed and deformed, after the specified pressure is added, wait for the pressure value to stabilize, close the oil pressure booster, let it stand, and read the pressure value again; the specific operation is to continue to pressurize, the elastic component is squeezed and deformed, the elastic plate continues to move forward, after the specified pressure is added, the cylinder support frame 6 and the elastic plate 7 jointly form a limit covering on the floating cylinder 22, after the pressure indication number is stable, close the ball valve 17 at the front end of the pressure gauge, let it stand for at least 20 seconds, and read the pressure value again; Step 4: Compare the pressure values ​​before and after. If the pressure value decreases, it means that there is oil leakage in one of the floating cylinders under test. Step 5: Lay oil-absorbing paper at the joints of the floating cylinder and quickly pick out the floating cylinder with oil leakage by observing the changes in the oil-absorbing paper.

[0051] The detection method can realize batch detection of floating cylinders, is convenient for detection, has high efficiency, greatly improves production efficiency, and reduces production costs.

[0052] Embodiment 3: exist Figure 8 In the embodiment shown, a floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine includes a detection device body 100, an oil pressure boosting device 200, and a control device 300. The control device includes a control panel 21 and a control system.

[0053] An oil pressure boosting device 200 for controlling the boosting through a control device 300 and a plurality of position limiting covering devices 400 for covering the floating cylinder to be detected are arranged inside the main body of the detection device. The position limiting covering device 400 includes a plurality of oil cylinder support frames 6 with slide grooves, and an elastic top pressure component 600 is arranged inside the slide grooves.

[0054] The elastic pressing component 600 includes an elastic plate and an elastic member, one end of which is fixed in the slide slot, and the other end is connected to the elastic plate and drives the elastic plate to perform telescopic movement. In this embodiment, the elastic member can also be an elastic block or other member with elastic telescopic function, as long as it can drive the elastic plate to perform telescopic movement to simulate the vertical turntable lifting movement. Specifically, the elastic block 72 is used.

[0055] The detection device body 100 adopts a movable frame structure, and the detection device body includes a bottom plate 1 with movable self-locking rollers, side support frames arranged on both sides of the bottom plate, and a tooling platform 4 arranged on the top of the side support frames.

[0056] In this embodiment, the detection device body includes a bottom plate 1, support columns 2 arranged on both sides of the bottom plate, and a tooling platform 4 arranged on the top of the support columns. In other embodiments, the side support frame can also be a support rod or a support plate.

[0057] The bottom plate is in the shape of a rectangular plate as a whole. The support columns 2 are arranged on the upper plate surfaces at both ends of the bottom plate. A movable self-locking roller with self-locking function is provided at the lower end of the bottom plate 1.

[0058] The support column 2 is provided with grippers 3 on both sides for easy pushing. The tooling platform 4 is an overall long groove structure arranged above the support column. Multiple long grooves can be arranged on the tooling platform 4. In this embodiment, three long grooves are arranged on the tooling platform. The tooling platform is arranged to facilitate temporary storage of the floating cylinder 22 that has been inspected and the connecting hose for connecting the floating cylinder.

[0059] A plurality of imitation vertical turntables are arranged inside the main body of the detection device to support the position limiting and covering devices 400, and the position limiting and covering devices 400 are used to cover the floating cylinder to be detected.

[0060] In this embodiment, the position limiting and covering device comprises 12 oil cylinder support frames 6 which are arranged in an integrated manner. In this embodiment, no fixing plate is arranged.

[0061] The oil cylinder support frame 6 is provided with a horizontally arranged T-shaped slot 61, and an elastic pressure component 600 is arranged inside the T-shaped slot. The elastic pressure component 600 includes a spring 71 arranged on the bottom wall of the T-shaped slot 61 and an elastic plate 7 connected to the spring.

[0062] Each of the oil cylinder support frames 6 has a T-shaped groove that does not completely penetrate through it. In order to prevent the floating cylinder 22 from having no support on the back of the cylinder liner during detection, the oil cylinder support frame 6 is provided with an elastic plate 7 with springs at four corners and a T-shaped groove. When the floating cylinder is not placed, the elastic plate 7 is in a natural state due to the support force of the spring. After the floating cylinder to be tested is placed, the spring will be compressed, and the elastic plate 7 will move forward along the T-shaped groove (i.e., in the direction of the elastic plate). The oil cylinder support frame 6 and the elastic plate 7 together form a limiting cover for the floating cylinder, thereby simulating the lifted-out state between the floating cylinder and the vertical turntable.

[0063] An oil pressure boosting device 200 is also provided inside the detection device body 100 . The oil pressure boosting device 200 is connected to the control device 300 and is controlled by the control device to boost the oil pressure.

[0064] The components such as the oil pressure boosting device 200 are the same as those in Example 1.

[0065] Fix the integral oil cylinder support frame to the inner side of the side support frame.

[0066] When in use, the motor 9 drives the oil pump 10 to work, the oil pump 10 sucks oil from the oil tank 8 and transports it to the valve block 11 through the connecting pipe 15. The oil is then evenly distributed by the oil distributor 23 and divided into six paths, and enters the floating cylinder 22 from the hose 19. The pressure gauge 18 will display the value in real time.

[0067] Under the continuous pressure of the oil, the elastic block is squeezed and deformed, and the elastic plate 7 continues to move forward. After the pressure is increased to the specified pressure, the oil cylinder support frame 6 and the elastic plate 7 jointly form a limit covering on the floating cylinder 22. The thrust of the floating cylinder 22 on the elastic plate 7 is similar to the thrust on the vertical turntable during actual work. After the pressure indication number is stable, close the ball valve 17 at the front end of the pressure gauge, let it stand for about 30 seconds, read the pressure value again, and compare the pressure values ​​before and after. When the pressure value remains unchanged, it means that there is no oil leakage in the floating cylinder; when the pressure value decreases, it means that there is oil leakage in a certain floating cylinder under detection. Oil absorbing paper is laid at the joint of each floating cylinder 22, and the floating cylinder with oil leakage can be quickly picked out by observing the changes in the oil absorbing paper.

[0068] After the inspection is completed, the floating cylinder that is confirmed to be leak-proof is placed on the tooling platform 4 for the next assembly. After the assembly is completed, the hose 19 is placed on the tooling platform 4 for the next use.

[0069] Compared with the prior art, the detection device can realize rapid oil leakage detection by forming a limit coating on the floating cylinder dedicated to the vertical turntable of the injection molding machine, and can realize simultaneous detection of 12 floating cylinders. The floating cylinder after detection can be temporarily placed on the top tooling platform to facilitate the next assembly. The hose required for detection can also be placed here to prevent loss and facilitate the next use. In addition, the detection device has a simple and compact structure, occupies a small area of ​​space, and through the setting of self-locking rollers, the entire device can be freely transferred in the machine assembly area, which can reduce the workload of our assemblers, improve assembly efficiency, and ensure production tasks. In addition, the detection device has a simple and compact structure, occupies a small area of ​​space, and through the setting of self-locking rollers, the entire device can be freely transferred in the machine assembly area, which can reduce the workload of our assemblers, improve assembly efficiency, and ensure production tasks.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine, comprising a detection device body (100), characterized in that: An oil pressure boosting device (200) for controlling the pressure boosting through a control device (300) and a plurality of position limiting and covering devices (400) for covering the floating cylinder to be detected are arranged inside the detection device body (100). The position limiting and covering devices (400) include a plurality of oil cylinder support frames (6) with slide grooves (61), and an elastic pressure component (600) is arranged inside the slide grooves (61).

2. The floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine according to claim 1 is characterized in that: The elastic pressing component (600) comprises an elastic plate (7) and an elastic member, wherein one end of the elastic member is fixed in the slide groove (61), and the other end is connected to the elastic plate (7) and drives the elastic plate to perform telescopic movement.

3. The floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine according to claim 1 is characterized in that: The slide groove (61) is in the form of a T-shaped slide groove structure as a whole and matches the floating cylinder to be detected.

4. The floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine according to claim 1 is characterized in that: The position-limiting covering device (400) further comprises a fixing plate (5) for connecting to the main body of the detection device, and the oil cylinder support frames (6) are evenly distributed on the fixing plate.

5. The floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine according to any one of claims 1 to 4, characterized in that: The oil pressure boosting device (200) comprises an oil tank (8), an oil pump (10) integrated on the oil tank (8), a motor (9) for driving the oil pump (10), and a valve block assembly (500) for achieving communication with a floating cylinder to be tested.

6. The floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine according to claim 5, characterized in that: One end of the oil pump (10) is connected to the interior of the oil tank (8) via an oil suction pipe (14), and the other end of the oil pump (10) is connected to the valve block assembly (500) via a connecting pipe (15), and is connected to the oil tank via an oil return pipe (16) below the oil pump (10).

7. The floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine according to claim 6 is characterized in that: A ball valve (17) and a pressure gauge (18) are provided on the connecting pipe (15).

8. The floating cylinder oil leakage detection device for the vertical turntable of an injection molding machine according to claim 5, characterized in that: The valve block assembly (500) comprises a valve block (11), a pressure sensor (12) arranged on the valve block (11), a relief valve (13), and an oil circuit distributor (23).

9. The floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine according to any one of claims 1 to 4, characterized in that: The detection device body (100) adopts a movable frame structure, and comprises a bottom plate (1) with movable self-locking rollers, side support frames arranged on both sides of the bottom plate, and a tooling platform (4) arranged on the top of the side support frames.

10. A method for detecting oil leakage using the floating cylinder oil leakage detection device for a vertical turntable of an injection molding machine according to any one of claims 1 to 9, characterized in that The following steps are involved: Step 1: Install the floating cylinder to be tested inside the slideway and connect it to the oil pressure booster device through a hose; Step 2: Control the oil pressure boosting device through the control device to pressurize the floating cylinder and read the pressure value; Step 3: Continue to apply pressure, the elastic pressure component is squeezed and deformed, and after the specified pressure is applied and the pressure value stabilizes, turn off the oil pressure booster, let it stand, and read the pressure value again; Step 4: Compare the pressure values ​​before and after. If the pressure value decreases, it means that there is oil leakage in one of the floating cylinders under test. Step 5: Lay oil absorbing paper at the joints of the floating cylinder and quickly pick out the floating cylinder with oil leakage by observing the changes in the oil absorbing paper.

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