Hardware mold broken needle detection device

Abstract

The utility model relates to the technical field of mold ejector pin fracture detection, in particular to a hardware mold broken pin detection device, which comprises a fixed seat, a mounting seat, a detection plate, a detection head, an ejector pin, a gas storage plate, a display screen and a gas storage cylinder, and is characterized in that the mounting seat is arranged on one side of the fixed seat, and the detection plate is arranged above the fixed seat; the detection head is arranged in the detection plate; when the broken ejector pin needs to be detected, the horizontal position of the ejector pin is adjusted, an injection mold is withdrawn and pushed out through the ejector pin, then the ejector pin continues to move forwards, the ejector pin moves forwards and makes contact with the detection head, the display screen can display pressure detection, and when the broken ejector pin does not make contact with the detection head, the display screen can give an alarm. And a worker is informed that the ejector pin is broken, air can be inflated into the air storage plate in the horizontal moving process of the ejector pin, impurities left in the mold can be removed through the air storage plate, and a user can use the mold conveniently.

Description

Technical Field

[0001] This utility model relates to the field of mold ejector pin breakage detection technology, specifically a hardware mold broken pin detection device. Background Technology

[0002] Ejector pins and some mold core components on molds are relatively small and prone to breakage during production. These broken components are often embedded in the plastic product. If ejector pin breakage is not detected promptly, it results in a large number of defective and scrapped products. Reworking these defective products requires significant manpower, increasing labor costs and compromising production efficiency. Furthermore, failure to detect broken ejector pins in a timely manner reduces the effective utilization rate of the injection molding machine and the mold.

[0003] Chinese Patent Publication No. CN217803174U discloses a mold pin breakage detection device. The device includes a body; a container for holding plastic products; a conveying mechanism for transferring plastic products, positioned above the container to allow plastic products to fall into the container; a metal detector positioned between the conveying mechanism and the container, with a detection cavity for plastic products to pass through, to detect information about the plastic products currently in the detection cavity; and a controller communicatively connected to both the conveying mechanism and the metal detector to control the movement of the conveying mechanism based on the plastic product information transmitted by the metal detector. The device also includes a flexible buffer, tilted and with one end connected to the metal detector and the other end connected to the container. This solves the problem of not being able to detect broken pins promptly and effectively.

[0004] The common problem with the broken needle detection device in the aforementioned patent and similar devices on the market is that it cannot protect the ejector pin according to changes in ejector pin pressure. This means that detection and replacement can only be carried out after the ejector pin breaks. Furthermore, the device cannot effectively clean the working area of ​​the ejector pin during use, which deteriorates the working environment of the ejector pin and shortens its service life. Utility Model Content

[0005] To address the aforementioned issues, a broken ejector pin detection device for metal molds is provided. When it is necessary to detect broken ejector pins, the horizontal position of the ejector pin is adjusted, and the ejector pin is withdrawn from the injection mold. After withdrawal, the ejector pin continues to advance and contacts the detection head. The display screen will show the pressure detection. When the broken ejector pin no longer contacts the detection head, the display screen will issue a warning, informing the operator that the ejector pin has broken. During the horizontal movement of the ejector pin, air will be injected into the air storage plate. The air storage plate can remove impurities left inside the mold, making it convenient for users.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a broken needle detection device for hardware molds, comprising a fixed base, a mounting base, a detection plate, a detection head, an ejector pin, an air storage plate, a display screen, and an air storage cylinder. The mounting base is disposed on one side of the fixed base, the detection plate is disposed above the fixed base, the detection head is disposed inside the detection plate, the ejector pin is disposed above the mounting base, the air storage plate is disposed above the fixed base, the display screen is disposed above the mounting base, and the air storage cylinder is disposed above the display screen.

[0007] Furthermore, a fixing plate is provided above the fixing base, and the fixing plate has a limiting groove inside that is adapted to the detection plate. An auxiliary bolt for positioning is installed inside the fixing plate.

[0008] Furthermore, the detection plate has an internal mounting groove adapted to the detection head, and an annular seat is provided inside the mounting groove. A pressure sensor that contacts the detection head is provided inside the annular seat.

[0009] Furthermore, a gas storage pipe connected to the gas storage plate is provided on one side of the fixed plate, a flexible hose is provided above the gas storage plate, a nozzle is threadedly installed at the output end of the flexible hose, and a plug tube is slidably installed inside the gas storage pipe.

[0010] Furthermore, a rectangular hole is provided on the top of the mounting base, and a push plate connected to the ejector pin is slidably installed inside the rectangular hole. A screw rod passes through the internal thread of the push plate, and a working motor is provided at the input end of the screw rod.

[0011] Furthermore, the top of the mounting base is provided with a vertical plate connected to the air storage cylinder, and the input end of the air storage cylinder is provided with a hollow tube, and a plug rod connected to the push plate is slidably installed inside the hollow tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the broken needle detection device for hardware molds is reasonable and has the following advantages:

[0013] (1) The fixed base is connected to the mounting base. The detection head is installed through the detection plate above the fixed base. When it is necessary to detect the broken pin, the horizontal position of the pin is adjusted and the pin is withdrawn from the injection mold. After being withdrawn, the pin continues to move forward. When the pin moves forward and contacts the detection head, the display screen will show the pressure test to detect the stability of the pin installation. When the broken pin does not contact the detection head, the display screen will issue a warning to inform the staff that the pin has broken. During the horizontal movement of the pin, air will be injected into the air storage plate. The nozzle outside the air storage plate can remove the impurities left inside the mold, thus enhancing the practicality of the device.

[0014] (2) Start the working motor. The working motor drives the screw to rotate. The screw thread passes through the push plate, which can make the push plate slide horizontally inside the rectangular hole, thus realizing the supply of kinetic energy to the push plate. When the push plate moves, the horizontal position of the stopper rod can be controlled. The stopper rod makes piston movement inside the hollow tube, which can continuously fill the air tank with air, making it convenient for users to clean the display screen below the air tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the fixing plate of this utility model;

[0019] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Fixed base; 2. Mounting base; 3. Detection plate; 4. Detection head; 5. Ejector pin; 6. Gas storage plate; 7. Display screen; 8. Gas storage cylinder; 9. Fixed plate; 10. Ring seat; 11. Push plate; 12. Pressure sensor; 13. Gas storage pipe; 14. Hose; 15. Plug; 16. Screw; 17. Hollow tube; 18. Plug rod. Detailed Implementation

[0021] 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.

[0022] Please refer to the following: Figures 1 to 5 A broken needle detection device for hardware molds includes a fixed base 1, a mounting base 2, a detection plate 3, a detection head 4, an ejector pin 5, an air storage plate 6, a display screen 7, and an air storage cylinder 8. The mounting base 2 is disposed on one side of the fixed base 1, the detection plate 3 is disposed above the fixed base 1, the detection head 4 is disposed inside the detection plate 3, the ejector pin 5 is disposed above the mounting base 2, the air storage plate 6 is disposed above the fixed base 1, the display screen 7 is disposed above the mounting base 2, and the air storage cylinder 8 is disposed above the display screen 7.

[0023] The fixed base 1 is connected to the mounting base 2. The detection head 4 is installed on the detection plate 3 above the fixed base 1. When it is necessary to detect broken ejector pin 5, the horizontal position of ejector pin 5 is adjusted, and ejector pin 5 is used to withdraw from the injection mold. After being withdrawn, ejector pin 5 continues to move forward and contacts the detection head 4. The display screen 7 will display the pressure detection. When the broken ejector pin 5 is no longer in contact with the detection head 4, the display screen 7 will issue a warning to inform the staff that ejector pin 5 has broken. During the horizontal movement of ejector pin 5, air will be charged into the air storage plate 6. The air storage plate 6 can remove impurities left inside the mold, improving the processing quality of the device. At the same time, ejector pin 5 will charge air into the air storage cylinder 8 during movement, which facilitates dust removal of the display screen 7 and enhances the overall cleanliness of the device.

[0024] like Figure 2 and Figure 5 As shown, a fixing plate 9 is provided above the fixing base 1. The fixing plate 9 has a limiting groove inside that is adapted to the detection plate 3. An auxiliary bolt for positioning is installed inside the fixing plate 9.

[0025] The detection plate 3 is installed through the limiting groove inside the fixing plate 9. After the detection plate 3 is installed, it is positioned by the action of auxiliary bolts, which makes it convenient for users to disassemble and assemble the detection plate 3.

[0026] like Figure 2 , Figure 4 and Figure 5 As shown, the detection plate 3 has an internal mounting groove adapted to the detection head 4, and an annular seat 10 is provided inside the mounting groove. A pressure sensor 12 that contacts the detection head 4 is provided inside the annular seat 10.

[0027] The ring seat 10 is positioned and installed through the mounting slot, and the pressure sensor 12 is installed through the ring seat 10. The pressure sensor 12 is in contact with the detection head 4. When the ejector pin 5 is in contact with the detection head 4, the display screen 7 will detect the pressure coefficient, which can be used to determine if the ejector pin 5 is broken.

[0028] like Figure 1 and Figure 2 As shown, a gas storage pipe 13 connected to the gas storage plate 6 is provided on one side of the fixed plate 9, a flexible hose 14 is provided above the gas storage plate 6, a nozzle is threadedly installed at the output end of the flexible hose 14, and a plug tube 15 is slidably installed inside the gas storage pipe 13.

[0029] The plug tube 15 moves horizontally inside the air storage tube 13, which can inflate the air storage plate 6. When the air pressure inside the air storage plate 6 reaches the threshold, it will rush to the nozzle under the action of the hose 14. The position of the nozzle can be adjusted through the hose 14, which makes it convenient for users to remove impurities left in the mold.

[0030] like Figure 2 and Figure 3 As shown, the top of the mounting base 2 has a rectangular hole, and a push plate 11 connected to the ejector pin 5 is slidably installed inside the rectangular hole. A screw 16 is threaded through the inside of the push plate 11, and a working motor is provided at the input end of the screw 16.

[0031] Start the working motor, which drives the screw 16 to rotate. The screw 16 thread passes through the push plate 11, which allows the push plate 11 to slide horizontally inside the rectangular hole, thus supplying the kinetic energy to the push plate 11.

[0032] like Figure 1 and Figure 2 As shown, the top of the mounting base 2 is provided with a vertical plate connected to the air storage cylinder 8, and the input end of the air storage cylinder 8 is provided with a hollow tube 17. Inside the hollow tube 17, a stopper rod 18 connected to the push plate 11 is slidably installed.

[0033] When the push plate 11 moves, the horizontal position of the stopper rod 18 can be controlled. The stopper rod 18 moves like a piston inside the hollow tube 17, which can continuously fill the air tank 8 with air, making it convenient for the user to clean the display screen 7 below the air tank 8.

[0034] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A device for detecting broken needles in metal molds, characterized in that... The device includes a fixed base (1), a mounting base (2), a detection plate (3), a detection head (4), a pin (5), an air storage plate (6), a display screen (7), and an air storage cylinder (8). The mounting base (2) is located on one side of the fixed base (1), the detection plate (3) is located above the fixed base (1), the detection head (4) is located inside the detection plate (3), the pin (5) is located above the mounting base (2), the air storage plate (6) is located above the fixed base (1), the display screen (7) is located above the mounting base (2), and the air storage cylinder (8) is located above the display screen (7).

2. The broken needle detection device for hardware molds according to claim 1, characterized in that: A fixing plate (9) is provided above the fixing seat (1). The fixing plate (9) has a limiting groove that is compatible with the detection plate (3) inside. The fixing plate (9) has an auxiliary bolt for positioning installed inside the thread.

3. The broken needle detection device for hardware molds according to claim 1, characterized in that: The detection plate (3) has an internal mounting groove that is compatible with the detection head (4). The internal mounting groove is provided with an annular seat (10). The internal annular seat (10) is provided with a pressure sensor (12) that contacts the detection head (4).

4. The broken needle detection device for hardware molds according to claim 2, characterized in that: A gas storage pipe (13) connected to the gas storage plate (6) is provided on one side of the fixed plate (9). A hose (14) is provided above the gas storage plate (6). A nozzle is threaded onto the output end of the hose (14). A plug pipe (15) is slidably installed inside the gas storage pipe (13).

5. The broken needle detection device for hardware molds according to claim 1, characterized in that: The top of the mounting base (2) has a rectangular hole, and a push plate (11) connected to the ejector pin (5) is slidably installed inside the rectangular hole. A screw (16) is threaded through the inside of the push plate (11), and a working motor is provided at the input end of the screw (16).

6. The broken needle detection device for hardware molds according to claim 1, characterized in that: The top of the mounting base (2) is provided with a vertical plate connected to the gas storage cylinder (8), and the input end of the gas storage cylinder (8) is provided with a hollow tube (17). Inside the hollow tube (17), a plug rod (18) connected to the push plate (11) is slidably installed.

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