Detection device for injection mold assembly

Abstract

The utility model discloses a detection device for injection mold assembly, and belongs to the technical field of mold assembly. Comprising a first detection mechanism and a pair of second detection mechanisms, the first detection mechanism comprises a water tank containing clear water, a water pump is installed on the side face of the water tank, the input end of the water pump is connected with the water tank, the output end of the water pump is connected with a Y-pipe, and a sealing piece and an anti-backflow mechanism are installed at the two free ends of the Y-pipe respectively; the free ends of the anti-backflow mechanism and the sealing element are connected with pipelines, the pair of second detection mechanisms slide on the outer sides of the pipelines and change color when encountering water, the outer side of one pipeline is connected with a water pressure gauge, and the free end of the pipeline is connected with a sub water nozzle; according to the detection device applied to injection mold assembly, the purpose of detecting the sealing performance of the connecting position of the auxiliary water nozzle and the main water nozzle on the mold water path can be achieved, and therefore misjudgment on the sealing performance of the mold water path is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mold assembly technology, specifically to a testing device for injection mold assembly. Background Technology

[0002] Injection molding is a method in which plastic material is completely melted by stirring with a screw at a certain temperature, injected into a mold cavity under high pressure, and then cooled and solidified to obtain a molded product. This method is suitable for the mass production of complex-shaped parts and is one of the important processing methods. It is often used in the manufacture of products such as car headlight housings or air conditioner housings. In the injection mold production process, the water channel layout is a crucial step. After the water channels are drilled, plugs are used to separate the intersecting water channels, forming several independently operating water channels inside the mold. During this process, the water channels need to be inspected to check their airtightness and whether the water channel layout is unobstructed. For example, a testing device for injection mold assembly (Chinese announcement number CN214872300U) includes a base plate. Connecting plates are welded to both ends of one side of the base plate. A magnet is attached to one end of each connecting plate. A conduit is welded to one side of the base plate. A first flexible hose is sleeved at one end of the conduit. A tee pipe is sleeved at one end of the first flexible hose. A second flexible hose is sleeved at one end of the tee pipe. A third flexible hose is sleeved at the other end of the tee pipe. An air pump is sleeved at one end of the second flexible hose. A pressure gauge is sleeved at one end of the third flexible hose. A telescopic tube is threaded onto the surface of the conduit. A sealing ring is sleeved on the surface of the telescopic tube. A threaded groove is formed on the surface of the telescopic tube. One end of the conduit penetrates and extends to the outside of one side of the base plate.

[0003] This injection mold testing device facilitates the inspection of the mold's water system, effectively checking its unobstructed flow and airtightness. It is also easy to install. However, during the inspection, air leakage may occur at the connection between the threaded surface of the telescopic tube and the water system connector due to poor sealing. This will cause a change in the pressure gauge reading, but this does not necessarily indicate poor sealing of the mold's water system. Furthermore, this technical solution cannot determine whether the change in the pressure gauge reading is due to poor sealing of the mold's water system or a possible poor seal at the connection between the threaded surface of the telescopic tube and the water system connector. This can lead to misjudgments by the testing personnel regarding the sealing performance of the mold's water system. Utility Model Content

[0004] The purpose of this invention is to provide a testing device for injection mold assembly to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A testing device for injection mold assembly includes a first testing mechanism and a pair of second testing mechanisms. The first testing mechanism includes a water tank filled with clean water, a water pump mounted on the side of the water tank, an input end of the water pump connected to the water tank, and an output end of the water pump connected to a three-way pipe. A seal and an anti-backflow mechanism are respectively installed at the two free ends of the three-way pipe. A pipe is connected to the free ends of the anti-backflow mechanism and the seal. The pair of second testing mechanisms slide on the outside of the pipe and change color upon contact with water. A water pressure gauge is connected to the outside of one of the pipes, and a sub-water nozzle is connected to the free end of the pipe. Further, each second testing mechanism includes a metal ring that slides on the outside of the pipe, and a filter bag is mounted on the outside of the metal ring. The filter bag is filled with color-changing silica gel.

[0007] Specifically, the filter bag is made of filter paper, so water can enter the filter bag and react physically with the color-changing silica gel, causing the silica gel to change color.

[0008] The beneficial effect of adopting the above-mentioned further solution is that the sub-water nozzle connects the pipe and the main water nozzle on the mold water circuit. A water pump pumps clean water into the mold water circuit. A seal prevents the clean water from flowing back into the three-way pipe, and an anti-backflow mechanism prevents the clean water from flowing back, thus ensuring that the clean water is within the mold water circuit. Since a pair of pipes and the mold water circuit are connected, and the clean water cannot flow out from either end of the pair of pipes, a water pressure gauge can be used to monitor the water pressure in the mold water circuit, thereby testing the sealing performance of the mold water circuit. The filter bag is slid to fit the mold. If water leaks from the connection between the sub-water nozzle and the main water nozzle on the mold water circuit, it will seep into the filter bag, causing the discolored silica gel to change color. If this happens, the inspector should improve the sealing performance of the connection between the sub-water nozzle and the main water nozzle on the mold water circuit until there is no more leakage. Finally, the sealing performance of the mold water circuit is tested again.

[0009] Specifically, the amount of clean water pumped into the mold water circuit is based on the design capacity of the mold water circuit.

[0010] Furthermore, the anti-backflow mechanism includes a connecting sleeve installed at one end of the three-way pipe. A connecting plate is installed inside the connecting sleeve, and a through hole is opened at the center of the connecting plate. A conical block is also installed inside the connecting sleeve, and the conical block has an opening. A retaining ball is elastically connected to one side of the connecting plate. The retaining ball slides inside the connecting sleeve and seals the opening.

[0011] Furthermore, a spring is connected between the connecting plate and the ball.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the pumped clean water will squeeze the retaining ball, making it away from the opening, and the clean water can flow in from the gap between the retaining ball and the opening. The backflowing clean water will squeeze the retaining ball in the opposite direction, making it close to the opening, and the clean water cannot flow out from the opening at this time, thereby achieving the purpose of only allowing clean water to flow into the mold water channel and preventing it from flowing out of the mold water channel.

[0013] Furthermore, several sealing rings are installed on the outer side of the sub-faucet.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the sealing performance of the sub-faucet is improved by using a sealing ring.

[0015] Furthermore, the top surface of the water tank is connected to a water inlet.

[0016] The advantage of adopting the above-mentioned further solution is that it allows for the use of a water inlet to replenish the water tank with clean water.

[0017] Furthermore, both the three-way pipe and the main pipe are rigid pipes.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This injection mold assembly detection device uses a sub-water nozzle to connect the pipe and the main water nozzle on the mold water circuit, uses a water pump to pump clean water into the mold water circuit, uses a sealing component to prevent the clean water from flowing back into the three-way pipe, and uses an anti-backflow mechanism to prevent the clean water from flowing back, thereby ensuring that the clean water is in the mold water circuit. Since a pair of pipes are connected to the mold water circuit, and the clean water cannot flow out from either end of the pair of pipes, a water pressure gauge can be used to monitor the water pressure in the mold water circuit, thereby detecting the sealing performance of the mold water circuit.

[0019] The testing device for injection mold assembly involves attaching the filter bag to the mold. If water leaks from the connection between the sub-water nozzle and the main water nozzle on the mold's water circuit, it will seep into the filter bag, causing the discolored silicone to change color. If this occurs, the inspector should improve the sealing of the connection between the sub-water nozzle and the main water nozzle on the mold's water circuit until there is no more leakage. Finally, the sealing of the mold's water circuit should be tested to avoid misjudging the sealing of the mold's water circuit. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the injection mold assembly testing device disclosed in an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Enlarged schematic diagram of structure A in the middle;

[0022] Figure 3 This is an exploded structural diagram of the injection mold assembly testing device disclosed in an embodiment of the present invention.

[0023] In the diagram: 100, First detection mechanism; 1001, Water tank; 1002, Water inlet nozzle; 1003, Three-way pipe; 1004, Seal; 1005, Pipe; 1006, Sub-faucet; 1007, Sealing ring; 1008, Water pressure gauge; 200, Anti-backflow mechanism; 2001, Connecting sleeve; 2002, Connecting plate; 2003, Through hole; 2004, Spring; 2005, Conical block; 300, Second detection mechanism; 3001, Metal ring; 3002, Filter bag. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-3 This utility model provides a technical solution: a testing device for injection mold assembly, including a first testing mechanism 100 and a pair of second testing mechanisms 300. The first testing mechanism 100 includes a water tank 1001 filled with clean water. A water pump is installed on the side of the water tank 1001. The input end of the water pump is connected to the water tank 1001, and the output end of the water pump is connected to a three-way pipe 1003. A sealing element 1004 and an anti-backflow mechanism 200 are respectively installed on the two free ends of the three-way pipe 1003. The free ends of the anti-backflow mechanism 200 and the sealing element 1004 are connected to a pipe 1005. The pair of second testing mechanisms 300 slide on the outside of the pipe 1005 and change color when exposed to water. A water pressure gauge 1008 is connected to the outside of pipe 1005. A sub-water nozzle 1006 is connected to the free end of pipe 1005. The sub-water nozzle 1006 connects pipe 1005 to the main water nozzle on the mold water circuit. A water pump pumps clean water into the mold water circuit. A seal 1004 prevents clean water from flowing back into the three-way pipe 1003, and an anti-backflow mechanism 200 prevents backflow, thus ensuring that the clean water is within the mold water circuit. Since a pair of pipes 1005 are connected to the mold water circuit, and clean water cannot flow out from either end of the pair of pipes 1005, the water pressure gauge 1008 can monitor the water pressure in the mold water circuit, thereby testing the sealing performance of the mold water circuit. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Please see Figures 1-3 This utility model provides a technical solution: a testing device for injection mold assembly, comprising a first testing mechanism 100 and a pair of second testing mechanisms 300. The first testing mechanism 100 includes a water tank 1001 filled with clean water, a water pump mounted on the side of the water tank 1001, the input end of the water pump connected to the water tank 1001, and the output end of the water pump connected to a three-way pipe 1003. A seal 1004 and an anti-backflow mechanism 200 are respectively installed at the two free ends of the three-way pipe 1003. The free ends of the anti-backflow mechanism 200 and the seal 1004 are connected to a pipe 1005. The pair of second testing mechanisms 300 slide on the outside of the pipe 1005 and change color when exposed to water. A water pressure gauge 100 is connected to the outside of one of the pipes 1005. 8. A sub-water nozzle 1006 is connected to the free end of pipe 1005. The second detection mechanism 300 includes a metal ring 3001 that slides outside pipe 1005. A filter bag 3002 is installed outside the metal ring 3001. The filter bag 3002 is filled with color-changing silica gel. The filter bag 3002 is slid to fit the mold. If water leaks from the connection between the sub-water nozzle 1006 and the mother water nozzle on the mold water path, it will seep into the filter bag 3002, causing the color-changing silica gel to change color. If this happens, the inspector should improve the sealing of the connection between the sub-water nozzle 1006 and the mother water nozzle on the mold water path until there is no more leakage. Finally, the sealing of the mold water path should be tested. The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figures 1-3 This utility model provides a technical solution: a detection device for injection mold assembly, the anti-backflow mechanism 200 includes a connecting sleeve 2001 installed at one end of a three-way pipe 1003, a connecting plate 2002 installed inside the connecting sleeve 2001, a through hole 2003 opened at the center of the connecting plate 2002, a conical block 2005 installed inside the connecting sleeve 2001, and the conical block 2005 has an opening, a retaining ball elastically connected to one side of the connecting plate 2002, the retaining ball slides in the connecting sleeve 2001 and seals the opening, a spring 2004 connects the connecting plate 2002 and the retaining ball, the pumped clean water will squeeze the retaining ball away from the opening, the clean water can flow in from the gap between the retaining ball and the opening, the backflowing clean water will squeeze the retaining ball in the opposite direction, making it close to the opening, the clean water cannot flow out from the opening at this time, thereby achieving the purpose of only allowing clean water to flow into the mold water channel and preventing it from flowing out of the mold water channel.

[0028] Specifically, the working principle of this injection mold assembly testing device is as follows: During use, start the water pump and pump an appropriate amount of clean water into the mold water circuit according to its design capacity. Then, turn off the pump. Due to the anti-backflow mechanism 200 and the seal 1004, the clean water cannot flow back into the water tank 1001. Next, attach the filter bag 3002 to the mold and let the mold stand for several minutes. During this process, if the color-changing silicone changes color, the inspector should remove the sub-nozzle 1006 and improve the sealing at the connection between the sub-nozzle 1006 and the main nozzle on the mold water circuit. Then, pump clean water back into the mold water circuit until the color-changing silicone does not change color during the standing process. In this case, observe the water pressure gauge 1008. If its pointer does not move, it indicates that the mold water circuit is well-sealed; if its pointer swings, it indicates that the mold water circuit is poorly sealed.

Claims

1. An injection mold assembly inspection device characterized by comprising: a mold assembly inspection device; a mold assembly; and a mold assembly inspection device control program. The utility model provides a water quality detection device, including first detection mechanism (100), a pair of second detection mechanism (300), first detection mechanism (100) includes the water tank (1001) of being equipped with clear water, the side of water tank (1001) is equipped with water pump, the input of water pump and water tank (1001) are connected, the output of water pump is connected with three prong pipe (1003), two free ends of three prong pipe (1003) are equipped with sealing element (1004) and anti -backflow mechanism (200) respectively, the free end of anti -backflow mechanism (200) and sealing element (1004) is connected with pipe (1005), a pair of second detection mechanism (300) is in the outside of pipe (1005) sliding, and the water change color, wherein the outside of one of pipe (1005) is connected with water pressure gauge (1008), the free end of pipe (1005) is connected with sub water nozzle (1006).

2. The detection device for assembling an injection mold according to claim 1, characterized in that, Second detection mechanism (300) includes the metal ring (3001) of sliding in the outside of pipe (1005), the outside of metal ring (3001) is equipped with filter bag (3002), the inside of filter bag (3002) is filled with the color change silica gel.

3. The detection device for assembling an injection mold according to claim 1, characterized in that, Anti -backflow mechanism (200) includes the connecting sleeve (2001) of being installed in one end of three prong pipe (1003), the inside of connecting sleeve (2001) is equipped with connecting plate (2002), the center of connecting plate (2002) is equipped with through -hole (2003), the inside of connecting sleeve (2001) is also equipped with conical block (2005), and conical block (2005) has opening, one side of connecting plate (2002) is elastically connected with ball, ball slides in connecting sleeve (2001), and with sealing opening.

4. The detection device for assembling an injection mold according to claim 3, wherein Spring (2004) is connected between connecting plate (2002) and ball.

5. The detection device for injection mold assembly according to claim 1, wherein The outside of sub water nozzle (1006) is equipped with a plurality of sealing rings (1007).

6. The detection device for injection mold assembly according to claim 1, wherein The top of water tank (1001) is communicated with water injection nozzle (1002).

7. The detection device for injection mold assembly according to claim 1, characterized in that, Three prong pipe (1003), pipe (1005) are all hard tubes.

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