Waterway sealing performance detection device of injection mold

Abstract

The invention relates to the technical field of mold water tightness detection, and discloses an injection mold waterway sealing detection device, which comprises a water tightness detection module, an oil stain filtering module and a particle filtering module, and is characterized in that the water tightness detection module comprises a water tank, a water inlet pipe and a water outlet pipe; the water inlet pipe is connected between the water tightness detection module and a cooling liquid inlet of a to-be-detected mold, the water outlet pipe is connected between the water tightness detection module and a cooling liquid outlet of the to-be-detected mold, a water pump is installed on the water inlet pipe, a water pressure gauge is installed on the water outlet pipe, and valves are installed on the water inlet pipe and the water outlet pipe. The mode that the oil stain filtering module purifies the oil stain in the circulating water liquid is carried out on the basis of not increasing interference on a water tightness detection index, the oil stain removal effect and the detected water liquid circulation effect are effectively separated, the water tightness detection accuracy is improved, and the water tightness detection accuracy is improved. And the interference of foam generated during oil stain removal is avoided.

Description

Technical Field

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

[0002] During the production process of thermoforming (injection molding) products, the mold needs to be continuously cooled by water to ensure that the mechanical properties of the parts meet the requirements during continuous production. The pressure, flow rate and flow rate of the cooling water in the mold have a direct impact on production efficiency and quality. In order to ensure the quality of the products produced, the water tightness of the mold must be effectively guaranteed. The flow rate and flow rate in the water circulation system need to be monitored. Therefore, the mold water circuit needs to be tested for sealing during the mold assembly process.

[0003] The commonly used method to detect the sealing of the mold water channel is the "pressure difference method". The so-called "pressure difference method" refers to connecting the mold water channel through a water supply device. The water supply device passes cooling water into the mold and applies pressure. The corresponding detection equipment is installed on the connecting water flow channel to detect the water pressure. After maintaining the water seal for a period of time, the change in water pressure is observed. If the change exceeds a certain value, it means that the mold is leaking and the water channel is not sealed enough.

[0004] When manufacturing the cooling water channel of the injection mold and when using it, impurities such as waste chips and oil will be mixed in. If they are not treated, it is easy to affect the water pressure change during the water tightness test and interfere with the test results. For this reason, the water channel sealing test device of the injection mold is often equipped with certain filtering means to ensure the cleanliness of the circulating water. However, traditional filtering means (setting filters, filter membranes, etc. in the water tank) can only handle granular impurities such as iron filings and plastic particles. There is still a lack of effective removal means for the oil mixed in the circulating water, so certain improvements are needed. Summary of the invention

[0005] The purpose of the present invention is to provide a water channel sealing detection device for an injection mold, so as to solve the problem that the traditional filtering means of the traditional injection mold water channel sealing detection device can only process granular impurities such as iron filings and plastic particles, but cannot remove oil stains mixed in the water used in the detection.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a water channel sealing detection device for an injection mold, which performs water tightness detection on a mold to be tested, and includes a water tightness detection module, an oil and dirt filtering module and a particle filtering module. The water tightness detection module includes a water tank, a water inlet pipe and a water outlet pipe. The water inlet pipe is connected between the water tightness detection module and the coolant inlet of the mold to be tested, and the water outlet pipe is connected between the water tightness detection module and the coolant outlet of the mold to be tested. A water pump is installed on the water inlet pipe, and a water pressure sensing element is installed on the water outlet pipe. Valves are installed on the water inlet pipe and the water outlet pipe. The water is circulated between the water tank and the mold to be tested by the action of the water pump. The water tightness of the mold to be tested is detected by the reading change of the water pressure sensing element during the water circulation process. The oil filter module and the particle filter module are both matched with the inner cavity of the water tank to purify impurities in the circulating water; The oil-filtering module comprises a first roller, a filter membrane, a washing box, a winding shaft, a second roller, a liquid storage tank, a nozzle and a motor. The first roller and the second roller are rotatably installed on the left and right sides of the water tank respectively. The filter membrane is wound between the first roller and the second roller. The second roller cover is arranged in the washing box. The washing box is rotatably installed with a winding shaft. The second roller is fixedly sleeved on the winding shaft. A motor is arranged on one side of the washing box. The output end of the motor is fixedly connected to the winding shaft. The filter membrane is driven to penetrate the water tank through the rotation of the winding shaft. The top cover of the washing box is provided with a liquid storage tank. The liquid storage tank stores detergent for removing oil stains. The bottom of the liquid storage tank is equipped with a plurality of nozzles facing the second roller.

[0007] As a further solution of the present invention: the oil filter module also includes a stirring shaft and a transmission member. The stirring shaft is rotatably installed in the water tank, and a blade is fixedly installed on one end of the stirring shaft extending into the water tank. A transmission member is provided between the stirring shaft and the winding shaft to achieve synchronous action.

[0008] As a further solution of the present invention: the transmission member includes a first bevel gear, a transmission shaft, a second bevel gear, a driving wheel, a driven wheel and a belt, the first bevel gear is fixedly sleeved in the winding shaft, a transmission shaft is rotatably installed on one side of the washing box, one end of the transmission shaft is fixedly sleeved with a second bevel gear meshing with the first bevel gear, and the other end is fixedly installed with a driving wheel, the top end of the stirring shaft is fixedly provided with a driven wheel, and the driving wheel and the driven wheel are matched through belt transmission.

[0009] As a further solution of the present invention: a bracket is arranged on the outside of the water tank, the first roller is rotatably installed in the bracket, a mounting clamp is fixedly installed on the outer wall of the washing box, and the transmission shaft is rotatably installed in the mounting clamp; the particle filtration module includes a filter screen and a magnet, the filter screen is slidably plugged into the water tank, a handle is fixedly installed on one end of the filter screen extending out of the water tank, and the magnet is fixedly installed in the inner cavity at the bottom of the water tank.

[0010] As a further solution of the present invention: the filter membrane, the filter screen and the magnet are arranged in sequence from top to bottom in the water tank, and a first through hole connected to the water outlet pipe and a second through hole connected to the water inlet pipe are opened on the water tank, the first through hole is located above the filter membrane, and the second through hole is flush with the horizontal plane of the magnet.

[0011] Compared with the prior art, the present invention provides a water channel sealing detection device for an injection mold, which has the following beneficial effects: In the oil-filtering module of the present invention, the water in the water tank is stratified by the filter membrane, and the water flowing back to the water tank from the water outlet pipe will first pass through the filter membrane. Under the adsorption and barrier effect of the filter membrane, the oil in the water is removed and then enters the circulation, but the single-layer filter membrane has a limited adsorption effect on the oil and needs to be replaced. At this time, the winding shaft is rotated by the starting motor, so that the second roller is rotated, and the filter membrane is wound from the first roller side to the second roller. The new filter membrane surface is thus filled into the water tank to continue to play the role of removing the oil and dirt. After being used for a period of time, when the filter membrane is concentrated on the second roller, the detergent stored in the liquid storage tank can be used to rinse the rolled filter membrane through the nozzle to remove the oil and dirt adsorbed on the filter membrane. After the filter membrane is restored to a clean state, the first roller is manually rotated to reversely wind the filter membrane back to the first roller for continuous use. There is no need to frequently replace the filter membrane, which effectively extends the service life of the filter membrane.

[0012] It should be clear that the method of purifying oil in circulating water by the oil filter module of the present invention is based on the consideration of not increasing the interference with the water tightness detection index. The oil removal effect is effectively separated from the circulation effect of the detected water liquid, and the interference of foam generated during oil removal is eliminated.

[0013] In addition, the replacement of the filter membrane surface of the present invention also produces a stirring effect in the water tank. While the motor drives the winding shaft to rotate, the transmission shaft rotates synchronously by utilizing the meshing of the first bevel gear and the second bevel gear. The torque is then transmitted to the stirring shaft side by utilizing the cooperation of the driving wheel, the driven wheel and the belt, so that the stirring shaft and the blades produce a stirring action in the water tank. The water returning to the water tank is more evenly distributed under the stirring action, thereby effectively improving the efficiency and effect of filtering out impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a water channel sealing property detection device for an injection mold proposed by the present invention; Figure 2 It is a schematic diagram of the structure of a water tightness detection module in a water channel sealing detection device for an injection mold proposed by the present invention; Figure 3It is a schematic diagram of the water circulation flow structure in a water tightness detection module in a water channel sealing detection device for an injection mold proposed by the present invention; Figure 4 It is a schematic diagram of the structure of an oil filter module in a water channel sealing detection device for an injection mold proposed by the present invention; Figure 5 It is a schematic diagram of the structure of a transmission part in a water channel sealing detection device for an injection mold proposed by the present invention; Figure 6 Figure 2 Detailed structural diagram at A in the middle; Figure 7 It is a schematic diagram of the expanded structure of a particle filtering module in a water channel sealing detection device for an injection mold proposed by the present invention.

[0015] In the figure: 1. mold to be tested; 2. water tightness detection module; 21. water tank; 211. first through hole; 212. second through hole; 22. water inlet pipe; 23. water outlet pipe; 24. water pump; 25. water pressure sensor element; 26. valve; 3. oil filter module; 31. bracket; 32. first roller; 33. filter membrane; 34. washing box; 340. mounting clamp; 35. winding shaft; 36. second roller; 37. stirring shaft; 370. blade; 38. transmission member; 381. first bevel gear; 382. transmission shaft; 383. second bevel gear; 384. driving wheel; 385. driven wheel; 386. belt; 39. liquid storage tank; 390. nozzle; 4. particle filter module; 41. filter screen; 410. handle; 42. magnet; 420. power supply element; 5. motor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Reference Figure 1-7A water channel sealing detection device for an injection mold is provided. In order to perform water tightness detection on a mold to be tested 1, a water tightness detection module 2, an oil filter module 3 and a particle filter module 4 are provided. The water tightness detection module 2 includes a water tank 21, a water inlet pipe 22 and a water outlet pipe 23. The water inlet pipe 22 is connected between the water tightness detection module 2 and the coolant inlet of the mold to be tested 1, and the water outlet pipe 23 is connected between the water tightness detection module 2 and the coolant outlet of the mold to be tested 1. A water pump 24 is installed on 22, and a water pressure sensor element 25 is installed on the water outlet pipe 23. The water pressure sensor element 25 is an instrument device based on a water pressure sensor, which can detect the water pressure when the water circulates and display the value through the instrument. Valves 26 are installed on the water inlet pipe 22 and the water outlet pipe 23. The water is circulated between the water tank 21 and the mold 1 to be tested by the action of the water pump 24. During the circulation of the water, the water tightness of the mold 1 to be tested is detected by the change in the reading of the water pressure sensor element 25.

[0018] The oil filter module 3 and the particle filter module 4 cooperate with the inner cavity of the water tank 21 to purify impurities in the circulating water; The oil filter module 3 includes a first roller 32, a filter membrane 33, a washing box 34, a winding shaft 35, a second roller 36, a liquid storage box 39, a nozzle 390 and a motor 5. The first roller 32 and the second roller 36 are rotatably installed on the left and right sides of the water tank 21, respectively. The filter membrane 33 is wound between the first roller 32 and the second roller 36, and the filter membrane 33 passes through the wall of the water tank 21 and is sealed. The second roller 36 is covered in the washing box 34, and the washing box 34 is transferred. A winding shaft 35 is movably installed, and the second roller 36 is fixedly sleeved on the winding shaft 35. A motor 5 is arranged on one side of the washing box 34, and the output end of the motor 5 is fixedly connected to the winding shaft 35. The filter membrane 33 is driven to penetrate the water tank 21 through the rotation of the winding shaft 35. The top cover of the washing box 34 is provided with a liquid storage tank 39, and the liquid storage tank 39 stores detergent for removing oil stains. The bottom of the liquid storage tank 39 is equipped with a plurality of nozzles 390 facing the second roller 36.

[0019] The specific implementation of the water tightness test of the mold 1 to be tested in the present invention relies on the water tightness test module 2. Specifically, in the water tightness test module 2, after the water tank 21 is connected to the cooling circulation water circuit of the mold through the water inlet pipe 22 and the water outlet pipe 23, the pumping action of the water pump 24 and the flow limiting action of the valve 26 are used to make the water circulating between the water tank 21 and the mold maintain a certain pressure. After a period of time, the pressure drop is detected. If it is found that the pressure drop reflected by the reading displayed by the water pressure sensor element 25 changes slightly, the overall mold has no water leakage. If the pressure drop is obvious, it proves that the water tightness of the mold does not meet the process design requirements. The specific pressure drop change range refers to the industry-general detection execution standard, which will not be repeated here.

[0020] In order to eliminate the interference of impurities such as waste scraps and oil stains on watertight detection, the present invention is also provided with an oil stain filter module 3 and a particle filter module 4, wherein the oil stain filter module 3 removes oil stains, and the particle filter module 4 filters out particulate impurities such as iron scraps and plastic particles. The specific implementation of the oil stain filter module 3 is as follows: In the oil filter module 3, refer to Figure 4 The filter membrane 33 separates the water in the water tank 21. The water flowing back to the water tank 21 from the water outlet pipe 23 will first pass through the filter membrane 33. Under the adsorption and barrier effect of the filter membrane 33, the oil in the water is removed and then enters the circulation. However, the single-layer filter membrane 33 has a limited adsorption effect on the oil and needs to be replaced. At this time, the winding shaft 35 is rotated by starting the motor 5, so that the second roller 36 is rotated, and the filter membrane 33 is wound from the first roller 32 to the second roller 36 ( Figure 4 The effect after being fully wound is shown in FIG. 3 ), and the new filter membrane 33 is thus filled into the water tank 21 to continue to play the role of removing oil stains. After being used for a period of time, when the filter membrane 33 is concentrated on the second roller 36, the detergent stored in the liquid storage tank 39 can be used to rinse the rolled filter membrane 33 through the nozzle 390 (the relevant flushing control structure is implemented by the prior art) to remove the oil stains adsorbed on the filter membrane 33. After the filter membrane 33 is restored to a clean state, the first roller 32 is manually rotated to reversely wind the filter membrane 33 back to the first roller 32 for continuous use. There is no need to frequently replace the filter membrane 33, which effectively extends the service life of the filter membrane 33.

[0021] In addition, the method of relying on the oil filter module 3 to purify the oil in the circulating water is based on the consideration of not increasing the interference with the water tightness detection index (water pressure change). The traditional method of directly adding detergent to the circulating water will produce a large amount of foam when the detergent for removing oil reacts with the oil (similar to washing dishes with detergent in real life). These foams are mixed into the circulating water circuit, which will have a significant impact on the change of water pressure, resulting in the inability to accurately judge whether the cause of the water pressure change is the mixing of foam or the leakage of the cooling water circuit of the mold. The specific implementation of the oil filter module 3 provided by the present invention effectively separates the oil removal effect from the detected water circulation effect, thereby eliminating the interference of foam generated during oil removal.

[0022] The oil filter module 3 also includes a stirring shaft 37 and a transmission member 38. The stirring shaft 37 is rotatably installed in the water tank 21. A blade 370 is fixedly installed on one end of the stirring shaft 37 extending into the water tank 21. A transmission member 38 is provided between the stirring shaft 37 and the winding shaft 35 to achieve synchronous action.

[0023] The transmission member 38 includes a first bevel gear 381, a transmission shaft 382, ​​a second bevel gear 383, a driving wheel 384, a driven wheel 385 and a belt 386. The first bevel gear 381 is fixedly sleeved in the winding shaft 35. A transmission shaft 382 is rotatably installed on one side of the washing box 34. One end of the transmission shaft 382 is fixedly sleeved with a second bevel gear 383 meshing with the first bevel gear 381, and the other end is fixedly installed with a driving wheel 384. A driven wheel 385 is fixedly provided on the top end of the stirring shaft 37, and the driving wheel 384 and the driven wheel 385 are matched through a belt 386 for transmission.

[0024] The replacement of the filter membrane 33 surface also produces a stirring effect in the water tank 21. Specifically, while the motor 5 drives the winding shaft 35 to rotate, the first bevel gear 381 and the second bevel gear 383 are meshed, and the transmission shaft 382 is synchronously rotated. The driving wheel 384, the driven wheel 385 and the belt 386 cooperate to transmit the torque to the stirring shaft 37 side, so that the stirring shaft 37 and the blades 370 produce a stirring action in the water tank 21. The water returned to the water tank 21 is more evenly distributed under the stirring action, and the impurity filtration efficiency and filtration effect are effectively improved. In addition, Figure 5 As shown, when the water is located above the filter membrane 33, the gravity of the water acts on the filter membrane 33, causing the filter membrane 33 to tend to be concave on the inner side of the water tank 21. At this time, the blades 370 on the stirring shaft 37 rotate, which will generate a downward guiding force to help guide the water to flow downward, which can further increase the filtration efficiency.

[0025] A bracket 31 is disposed outside the water tank 21 , and the first roller 32 is rotatably mounted in the bracket 31 . The bracket 31 provides a rotatable mounting base for the first roller 32 .

[0026] A mounting clamp plate 340 is fixedly mounted on the outer wall of the washing box 34 , and the transmission shaft 382 is rotatably mounted in the mounting clamp plate 340 . The mounting clamp plate 340 provides a rotatable mounting base for the transmission shaft 382 .

[0027] The particle filtering module 4 includes a filter screen 41 and a magnet 42. The filter screen 41 is slidably plugged into the water tank 21. A handle 410 is fixedly installed on one end of the filter screen 41 extending out of the water tank 21. After the filter screen 41 has collected impurities for a period of time, the filter screen 41 is pulled out through the handle 410 to facilitate centralized cleaning of the impurities collected thereon. The magnet 42 is fixedly installed in the inner cavity at the bottom of the water tank 21. The filter screen 41 is used to collect non-metallic particle impurities, and the adsorption effect of the magnet 42 is used to collect metal particle impurities.

[0028] The filter membrane 33, the filter screen 41 and the magnet 42 are arranged in the water tank 21 in a top-down order. Corresponding to the characteristics of the oily impurities being distributed in the upper layer of the water, the oily impurities are removed first, and then the particulate impurities are removed. The filter membrane 33 is designed to allow particulate impurities to pass through. The water tank 21 is provided with a first through hole 211 connected to the water outlet pipe 23 and a second through hole 212 connected to the water inlet pipe 22. The first through hole 211 is located above the filter membrane 33, and the second through hole 212 is flush with the horizontal plane of the magnet 42. The positions of the first through hole 211 and the second through hole 212 are set so that the circulating water can be completely filtered.

[0029] A power-on element 420 cooperating with the magnet 42 is provided on one side of the water tank 21. When the magnet 42 is an electromagnet, the power-on element 420 can be used to add magnetism to and remove magnetism from the magnet 42, making it more flexible to remove impurities collected on the magnet 42.

[0030] Working principle: After the water tank 21 is connected to the cooling circulation water circuit of the mold through the water inlet pipe 22 and the water outlet pipe 23, the pumping action of the water pump 24 and the flow limiting action of the valve 26 are used to maintain a certain pressure on the water circulating between the water tank 21 and the mold. After a period of time, the pressure drop is detected. If it is found that the pressure drop reflected by the reading displayed by the water pressure sensor element 25 changes slightly, there is no water leakage in the entire mold. If the pressure drop is obvious, it proves that the water tightness of the mold does not meet the process design requirements. In the oil filtration module 3, the filter membrane 33 stratifies the water in the water tank 21. The water flowing back to the water tank 21 from the water outlet pipe 23 will first pass through the filter membrane 33. Under the adsorption and barrier effect of the filter membrane 33, the oil in the water can be removed and then enter the circulation. The single-layer filter membrane 33 has a limited adsorption effect on oil and needs to be replaced. At this time, the starting motor 5 is used to make the winding shaft 3 5 rotates, thereby causing the second roller 36 to rotate, and the filter membrane 33 is wound from the first roller 32 to the second roller 36, and the new filter membrane 33 is thus filled into the water tank 21 to continue to play the role of removing oil and dirt. After being used for a period of time, when the filter membrane 33 is concentrated on the second roller 36, the detergent stored in the liquid storage tank 39 can be used to wash the rolled filter membrane 33 through the nozzle 390 to remove the oil and dirt adsorbed on the filter membrane 33. After the filter membrane 33 is restored to a clean state, the first roller 32 is manually rotated again to reversely wind the filter membrane 33 back to the first roller 32 for continuous use. The particle filtering module 4 includes a filter screen 41 and a magnet 42. The filter screen 41 is slidably plugged into the water tank 21, and the magnet 42 is fixedly installed in the inner cavity at the bottom of the water tank 21. The filter screen 41 is used to collect non-metallic particle impurities, and the adsorption effect of the magnet 42 is used to collect metal particle impurities.

[0031] 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water channel sealing detection device for an injection mold, for performing water tightness detection on a mold to be tested (1), characterized in that: The invention comprises a watertightness detection module (2), an oil-contamination filtering module (3) and a particle filtering module (4); the watertightness detection module (2) comprises a water tank (21), a water inlet pipe (22) and a water outlet pipe (23); the water inlet pipe (22) is connected between the watertightness detection module (2) and a coolant inlet of a mold to be tested (1); the water outlet pipe (23) is connected between the watertightness detection module (2) and a coolant outlet of the mold to be tested (1); a water pump (24) is installed on the water inlet pipe (22); a water pressure gauge (25) is installed on the water outlet pipe (23); valves (26) are installed on both the water inlet pipe (22) and the water outlet pipe (23); water is circulated between the water tank (21) and the mold to be tested (1) by the action of the water pump (24); and the watertightness of the mold to be tested (1) is detected by the change in the reading of the water pressure gauge (25) during the circulation of the water; The oil filter module (3) and the particle filter module (4) are both coupled with the inner cavity of the water tank (21) to purify impurities in the circulating water; The oil-pollution filtering module (3) comprises a first roller (32), a filter membrane (33), a washing box (34), a winding shaft (35), a second roller (36), a liquid storage box (39), a nozzle (390) and a motor (5). The first roller (32) and the second roller (36) are rotatably mounted on the left and right sides of the water tank (21), respectively. The filter membrane (33) is wound between the first roller (32) and the second roller (36). The second roller (36) is covered in the washing box (34). The winding shaft is rotatably mounted in the washing box (34). (35), the second roller (36) is fixedly sleeved on the winding shaft (35), a motor (5) is arranged on one side of the washing box (34), the output end of the motor (5) is fixedly connected to the winding shaft (35), and the filter membrane (33) is driven to move through the water tank (21) through the rotation of the winding shaft (35), and a liquid storage tank (39) is arranged on the top cover of the washing box (34), and a detergent for removing oil stains is stored in the liquid storage tank (39), and a plurality of nozzles (390) facing the second roller (36) are matched at the bottom of the liquid storage tank (39).

2. The water channel sealing detection device for an injection mold according to claim 1, characterized in that: The oil-pollution filtering module (3) further comprises a stirring shaft (37) and a transmission member (38); the stirring shaft (37) is rotatably mounted in the water tank (21); a blade (370) is fixedly mounted on one end of the stirring shaft (37) extending into the water tank (21); and a transmission member (38) is provided between the stirring shaft (37) and the winding shaft (35) to achieve synchronous movement.

3. The water channel sealing detection device for injection mold according to claim 2, characterized in that: The transmission member (38) comprises a first bevel gear (381), a transmission shaft (382), a second bevel gear (383), a driving wheel (384), a driven wheel (385) and a belt (386); the first bevel gear (381) is fixedly sleeved in the winding shaft (35); a transmission shaft (382) is rotatably mounted on one side of the washing box (34); a second bevel gear (383) meshing with the first bevel gear (381) is fixedly sleeved on one end of the transmission shaft (382); a driving wheel (384) is fixedly mounted on the other end; a driven wheel (385) is fixedly arranged at the top end of the stirring shaft (37); the driving wheel (384) and the driven wheel (385) are coupled to each other via a belt (386).

4. The water channel sealing detection device for an injection mold according to claim 1, characterized in that: A bracket (31) is arranged outside the water tank (21), and the first roller (32) is rotatably mounted in the bracket (31).

5. The water channel sealing detection device for injection mold according to claim 3, characterized in that: A mounting clamping plate (340) is fixedly mounted on the outer wall of the washing box (34), and the transmission shaft (382) is rotatably mounted in the mounting clamping plate (340).

6. The water channel sealing detection device for injection mold according to claim 1, characterized in that: The particle filtering module (4) comprises a filter screen (41) and a magnet (42); the filter screen (41) is slidably plugged into the water tank (21); a handle (410) is fixedly mounted on one end of the filter screen (41) extending out of the water tank (21); and the magnet (42) is fixedly mounted in the inner cavity at the bottom of the water tank (21).

7. The water channel sealing detection device of an injection mold according to claim 6, characterized in that: The filter membrane (33), the filter screen (41) and the magnet (42) are arranged in sequence from top to bottom in the water tank (21); a first through hole (211) connected to the water outlet pipe (23) and a second through hole (212) connected to the water inlet pipe (22) are provided on the water tank (21); the first through hole (211) is located above the filter membrane (33); and the second through hole (212) is flush with the horizontal plane of the magnet (42).

8. The water channel sealing detection device for injection mold according to claim 6, characterized in that: A power supply element (420) cooperating with the magnet (42) is provided on one side of the water tank (21).

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