Hardware machining injection mold
By installing pressure detection units and temperature sensors in the injection molds for metal processing, the problems of mold clamping pressure and temperature detection are solved, improving mold stability and product quality, and ensuring product molding accuracy and consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-31
AI Technical Summary
Existing metal processing injection molds make it difficult to detect the clamping pressure of the mold during mold closing and locking, which affects the judgment of the mold's tightness and sealing performance.
A pressure detection group is installed at the top of the lower injection mold, and the pressure of the upper injection mold is borne by the mold clamping block. The cooperation of elastic support pads and guide rods enables accurate detection and display of the mold clamping pressure. Combined with a temperature sensor, the internal temperature of the mold is monitored in real time, and the data is processed and displayed by the main control unit.
It enables precise judgment of mold clamping pressure, improves mold stability and product quality, ensures that products are molded at the optimal temperature, reduces defects, and extends mold life.
Smart Images

Figure CN224060393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to a hardware processing injection mold. Background Technology
[0002] Metal processing injection molds are industrial products that use specific structural forms to shape materials in a certain way. They are also production tools that can mass-produce industrial product parts with certain shape and size requirements. Injection molding is a method of industrial product manufacturing and shaping. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting.
[0003] However, existing metal processing injection molds do not allow for easy detection of mold clamping pressure during mold closing and locking, making it difficult to assess the tightness of the mold lock and the sealing performance of the mold. Utility Model Content
[0004] Therefore, the purpose of this utility model is to propose a metal processing injection mold to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0005] To achieve the above objectives, one embodiment of this utility model provides a metal processing injection mold, including a lower injection mold with an internal cavity, an upper injection mold for opening and closing above the lower injection mold, pressure detection groups for detecting clamping pressure fixedly installed at the four corners of the lower injection mold, clamping top blocks for isolation and protection fixedly installed at the top of the pressure detection groups, the pressure detection groups being signal-connected to a main control unit for automated control, the main control unit being signal-connected to a display screen for displaying data and a temperature sensor for detecting the internal temperature of the mold, a clamping guide rod for guiding the upper injection mold fixedly installed at the top of the lower injection mold, a magnet for attraction fixedly installed at the top of the clamping guide rod, and an elastic support pad for clamping protection sleeved on the surface of the clamping guide rod.
[0006] Preferably, the top of the lower injection mold is provided with an installation groove for accommodating the pressure detection group, the interior of the lower injection mold is provided with a slot for accommodating the elastic support pad, the bottom of the upper injection mold is provided with a guide groove for accommodating the locking guide rod, and a stainless steel sheet for suction is fixedly installed inside the guide groove.
[0007] The above technical solution employs the following: the internal cavity of the lower injection mold provides space for the molding of hardware products. The mounting groove at its top provides an accurate installation position for the pressure detection assembly, enabling precise detection of the clamping pressure. The internal slot for housing the elastic support pad allows the pad to buffer and support during clamping without affecting the normal operation of the mold. The upper injection mold works in conjunction with the lower injection mold to achieve mold opening and closing. The guide groove at its bottom, which accommodates the clamping guide rod, has the same diameter as the rod, ensuring precise guidance of the upper injection mold during mold opening and closing, allowing the upper and lower molds to accurately align and close, thus improving the precision of the molded product.
[0008] Preferably, in any of the above schemes, the pressure detection group includes a pressure sensor connected to the main control unit and a pressure plate that bears the pressure. The pressure sensor is fixedly installed inside the lower injection mold, and the pressure plate is fixedly installed at the detection end of the pressure sensor.
[0009] The above technical solution is adopted as follows: During the mold closing process, the pressure of the upper injection mold is transmitted to the pressure plate through the mold locking block. The pressure plate evenly distributes the pressure and transmits it to the pressure sensor. The pressure sensor is connected to the main control unit and transmits the detected pressure data to the main control unit in real time. After processing, the main control unit transmits the data to the display screen for display, which makes it easier for operators to accurately judge the mold locking pressure, helps to detect potential problems in mold locking in a timely manner and make adjustments, and ensures the stability of the injection molding process and product quality.
[0010] Preferably, in any of the above embodiments, the locking top block includes a protective spring for protection and a movable block for support, wherein the protective spring is fixedly installed on the top of the pressure plate, and the movable block is fixedly installed on the top of the protective spring.
[0011] The above technical solution employs a protective spring that provides elastic support for the movable block. During mold closing, the upper injection mold moves downward and first contacts the movable block. Under pressure, the movable block compresses the protective spring and moves downward, gradually transmitting the pressure to the pressure plate. The elasticity of the protective spring not only buffers the impact force of the upper injection mold and protects the pressure detection group from damage caused by excessive instantaneous pressure, but also makes the pressure transmission process more stable and uniform, ensuring that the pressure sensor receives an accurate pressure signal and that the mold clamping pressure can be effectively transmitted to the pressure detection group, thereby improving the accuracy and reliability of pressure detection.
[0012] Preferably, in any of the above solutions, the display screen is fixedly installed at one end of the lower injection mold, and the temperature sensor is fixedly installed inside the upper injection mold.
[0013] Preferably, in any of the above embodiments, the diameter of the mold-locking guide rod is the same as the diameter of the guide groove, and the top end of the mold-locking guide rod is provided with a fixing groove for fixing a magnet piece.
[0014] The above technical solution involves a signal connection between the display screen and the main control unit. The main control unit processes the clamping pressure data detected by the pressure detection group and the internal temperature data of the mold detected by the temperature sensor, and then transmits the data to the display screen. By observing the clamping pressure data on the display screen, operators can determine whether the tightness of the mold clamping meets the requirements. If the pressure is abnormal, measures can be taken in time to adjust the mold. At the same time, based on the temperature data, operators can reasonably control the mold opening time of the injection mold to ensure that the product is molded at the appropriate temperature, thereby improving product quality. The display screen enhances the convenience and controllability of mold operation, enabling real-time monitoring of temperature changes inside the mold during the injection process. Operators can accurately control the mold opening time of the injection mold based on the real-time temperature data and the product's process requirements, ensuring that the product is molded under optimal temperature conditions, reducing product defects, and improving product consistency and quality stability.
[0015] Preferably, in any of the above embodiments, the elastic support pad includes a support pad as a support base, a connecting spring for support, and a protective pad for movement. The support pad is fixedly installed inside the lower injection mold, the top of the support pad is fixedly installed with the connecting spring, and the top of the connecting spring is fixedly installed with the protective pad.
[0016] The above technical solution involves connecting the support pad and the protective pad with a connecting spring. During the mold closing process, when the upper injection mold contacts the protective pad and applies pressure, the connecting spring is compressed, absorbing part of the impact force and playing a buffering role, protecting the mold from damage caused by excessive impact force. At the same time, the elastic reaction force of the connecting spring also helps to enhance the clamping force, making the mold close more tightly and improving the service life and stability of the mold.
[0017] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0018] 1. A pressure detection group for detecting clamping pressure is installed at the top of the lower injection mold, and a clamping top block is installed at the top of the pressure detection group to protect it. The clamping top block bears the pressure when the upper injection mold closes, and transmits the clamping pressure to the pressure detection group through internal elasticity. The pressure detection group detects the clamping pressure and transmits it to the display screen for pressure display. The pressure detected accurately judges the clamping pressure and sealing performance of the mold, which helps to improve the stability of the injection mold.
[0019] 2. A temperature sensor is installed inside the upper injection mold to detect the temperature during the injection process and transmit the temperature data to the display screen. The mold opening time of the injection mold can be controlled according to the temperature. The mold clamping guide rod at the top of the lower injection mold guides the upper injection mold to clamp. At the same time, the magnetic attraction generated by the magnet at the top of the mold clamping guide rod further enhances the stability of the mold clamping.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0022] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;
[0023] Figure 2 This is a partial structural schematic diagram according to an embodiment of the present utility model;
[0024] Figure 3 This is a schematic cross-sectional view of the overall structure according to an embodiment of the present utility model;
[0025] Figure 4 This is a cross-sectional structural diagram of the injection mold according to an embodiment of the present invention;
[0026] Figure 5 According to the embodiments of this utility model Figure 4 Enlarged structural diagram at point A;
[0027] The components are: 1-lower injection mold, 2-upper injection mold, 3-pressure detection group, 31-pressure sensor, 32-pressure plate, 4-locking top block, 41-protective spring, 42-moving block, 5-display screen, 6-temperature sensor, 7-locking guide rod, 8-magnetic sheet, 9-elastic support pad, 91-support pad, 92-connecting spring, 93-protective pad. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.
[0029] like Figure 1-5As shown, an embodiment of the present invention provides a metal processing injection mold, including a lower injection mold 1 with an internal cavity, an upper injection mold 2 for opening and closing above the lower injection mold 1, pressure detection groups 3 for detecting clamping pressure fixedly installed at the four corners of the lower injection mold 1, clamping top blocks 4 for isolating and protecting the pressure detection groups 3 fixedly installed at the top of the pressure detection groups 3, a main control unit for automatic control connected to the pressure detection groups 3, a display screen 5 for displaying data and a temperature sensor 6 for detecting the internal temperature of the mold connected to the main control unit, a clamping guide rod 7 for guiding the upper injection mold 2 fixedly installed at the top of the lower injection mold 1, a magnet 8 for attraction fixedly installed at the top of the clamping guide rod 7, and an elastic support pad 9 for clamping protection sleeved on the surface of the clamping guide rod 7.
[0030] Preferably, the top of the lower injection mold 1 is provided with an installation groove for accommodating the pressure detection group 3, the interior of the lower injection mold 1 is provided with a slot for accommodating the elastic support pad 9, and the bottom of the upper injection mold 2 is provided with a guide groove for accommodating the mold locking guide rod 7, and a stainless steel sheet for suction is fixedly installed inside the guide groove.
[0031] The above technical solution is adopted as follows: The internal cavity of the injection lower mold 1 provides space for the molding of hardware products. The mounting groove at its top provides an accurate installation position for the pressure detection group 3, so as to accurately detect the clamping pressure. The slot inside is used to accommodate the elastic support pad 9, so that the elastic support pad 9 can play a buffering and supporting role during clamping without affecting the normal operation of the mold. The injection upper mold 2 cooperates with the injection lower mold 1 to realize the mold opening and closing action. The guide groove at its bottom to accommodate the clamping guide rod 7 has the same diameter as the clamping guide rod 7, which ensures the accurate guidance of the injection upper mold 2 during the mold opening and closing process, so that the upper and lower molds can be accurately aligned and closed, thereby improving the accuracy of the molded product.
[0032] Preferably, in any of the above schemes, the pressure detection group 3 includes a pressure sensor 31 connected to the main control unit and a pressure plate 32 that bears the pressure. The pressure sensor 31 is fixedly installed inside the injection mold 1, and the pressure plate 32 is fixedly installed on the detection end of the pressure sensor 31.
[0033] The above technical solution is adopted as follows: During the mold closing process, the pressure of the upper injection mold 2 is transmitted to the pressure plate 32 through the mold locking block 4. The pressure plate 32 distributes the pressure evenly and transmits it to the pressure sensor 31. The pressure sensor 31 is connected to the main control unit and transmits the detected pressure data to the main control unit in real time. After processing, the main control unit transmits the data to the display screen 5 for display, which makes it easier for operators to accurately judge the mold locking pressure, helps to detect possible problems in mold locking in a timely manner and make adjustments, and ensures the stability of the injection molding process and product quality.
[0034] Preferably, the locking top block 4 includes a protective spring 41 for protection and a movable block 42 for support. The protective spring 41 is fixedly installed on the top of the pressure plate 32, and the movable block 42 is fixedly installed on the top of the protective spring 41.
[0035] The above technical solution is adopted: the protective spring 41 provides elastic support for the movable block 42. When the mold is closed, the upper injection mold 2 moves downward and first contacts the movable block 42. Under the action of pressure, the movable block 42 compresses the protective spring 41 and moves downward, gradually transmitting the pressure to the pressure plate 32. The elastic effect of the protective spring 41 can not only buffer the impact force of the upper injection mold 2 and protect the pressure detection group 3 from damage by excessive pressure, but also make the pressure transmission process more stable and uniform, ensuring that the pressure sensor 31 receives an accurate pressure signal, and ensuring that the mold clamping pressure can be effectively transmitted to the pressure detection group 3, thereby improving the accuracy and reliability of pressure detection.
[0036] Preferably, of any of the above solutions, the display screen 5 is fixedly installed at one end of the lower injection mold 1, and the temperature sensor 6 is fixedly installed inside the upper injection mold 2.
[0037] Preferably, the diameter of the mold-locking guide rod 7 is the same as the diameter of the guide groove, and the top end of the mold-locking guide rod 7 is provided with a fixing groove for fixing the magnet piece 8.
[0038] The above technical solution involves a display screen 5 connected to the main control unit. The main control unit processes the clamping pressure data detected by the pressure detection group 3 and the internal temperature data of the mold detected by the temperature sensor 6, and then transmits the data to the display screen 5 for display. By observing the clamping pressure data on the display screen 5, operators can determine whether the tightness of the mold clamping meets the requirements. If the pressure is abnormal, measures can be taken in time to adjust the mold. At the same time, based on the temperature data, operators can reasonably control the mold opening time to ensure that the product is molded at the appropriate temperature, thereby improving product quality. The display screen 5 enhances the convenience and controllability of mold operation, enabling real-time monitoring of temperature changes inside the mold during injection molding. Operators can accurately control the mold opening time based on the real-time temperature data and the product's process requirements, ensuring that the product is molded under optimal temperature conditions, reducing product defects, and improving product consistency and quality stability.
[0039] Preferably, the elastic support pad 9 includes a support pad 91 as a support base, a connecting spring 92 for support, and a protective pad 93 for movement. The support pad 91 is fixedly installed inside the injection mold 1, the connecting spring 92 is fixedly installed at the top of the support pad 91, and the protective pad 93 is fixedly installed at the top of the connecting spring 92.
[0040] The above technical solution is adopted: the connecting spring 92 connects the support pad 91 and the protective pad 93. During the mold closing process, when the upper injection mold 2 contacts the protective pad 93 and applies pressure, the connecting spring 92 is compressed, absorbing part of the impact force and playing a buffering role, protecting the mold from damage by excessive impact force. At the same time, the elastic reaction force of the connecting spring 92 also helps to enhance the clamping force, making the mold close more tightly and improving the service life and stability of the mold.
[0041] The working principle of this hardware processing injection mold is as follows:
[0042] During mold closing, the upper injection mold 2 descends along the clamping guide rod 7, and the stainless steel sheet and magnetic sheet 8 engage for initial positioning. The upper injection mold 2 presses against the clamping top block 4, and the movable block 42 compresses the protective spring 41. The pressure is transmitted to the pressure sensor 31 via the pressure plate 32. The sensor transmits the data to the main control unit for processing and then displays it on the display screen 5. The temperature sensor 6 monitors the temperature inside the mold in real time and transmits the data to the main control unit and the display screen 5. The main control unit determines whether the clamping pressure and temperature are normal based on preset parameters. If normal, injection molding proceeds. After injection molding is completed, the mold opening time is controlled based on the temperature data. During mold opening, the upper injection mold 2 rises.
[0043] Compared with the prior art, the present invention has the following advantages:
[0044] 1. A pressure detection group 3 for detecting clamping pressure is installed at the top of the lower injection mold 1, and a clamping top block 4 for protection is set at the top of the pressure detection group 3. The clamping top block 4 bears the pressure when the upper injection mold 2 is closed, and transmits the clamping pressure to the pressure detection group 3 through internal elasticity. The pressure detection group 3 detects the clamping pressure and transmits it to the display screen 5 for pressure display. The pressure detected can accurately determine the pressure and sealing of the mold during clamping, which helps to improve the stability of the injection mold.
[0045] 2. A temperature sensor 6 is installed inside the upper injection mold 2 to detect the temperature during the injection process and transmit the temperature data to the display screen 5 for display. The mold opening time of the injection mold can be controlled according to the temperature. The mold clamping guide rod 7 at the top of the lower injection mold 1 guides the mold clamping of the upper injection mold 2. At the same time, the magnetic attraction generated by the magnet 8 at the top of the mold clamping guide rod 7 further enhances the stability of the mold clamping.
Claims
1. A hardware injection molding mold, comprising an injection lower mold (1) with a mold cavity arranged inside, an injection upper mold (2) arranged above the injection lower mold (1) and capable of opening and closing, characterized in that: The four corners of the injection mold lower mold (1) are fixedly installed with a mold locking pressure detection group (3), the top end of the mold locking pressure detection group (3) is fixedly installed with a mold locking top block (4) for isolation protection, the mold locking pressure detection group (3) is signal connected with a main control unit for automatic control, the main control unit is signal connected with a display screen (5) for data display and a temperature sensor (6) for detecting the temperature inside the mold, the top end of the injection mold lower mold (1) is fixedly installed with a mold locking guide rod (7) for guiding the injection mold upper mold (2), the top end of the mold locking guide rod (7) is fixedly installed with a magnet sheet (8) for suction, and the surface of the mold locking guide rod (7) is sleeved with an elastic support pad (9) for mold locking protection.
2. The hardware injection molding mold of claim 1, wherein: The top end of the injection mold lower mold (1) is provided with a mounting groove for accommodating the mold locking pressure detection group (3), the inside of the injection mold lower mold (1) is provided with a slot for accommodating the elastic support pad (9), the bottom of the injection mold upper mold (2) is provided with a guide groove for accommodating the mold locking guide rod (7), and the inside of the guide groove is fixedly installed with a stainless steel sheet for suction.
3. A hardware injection molding mold as claimed in claim 2, characterized in that: The mold locking pressure detection group (3) comprises a pressure sensor (31) signal connected with the main control unit and a pressure bearing plate (32) for bearing pressure, the pressure sensor (31) is fixedly installed in the inside of the injection mold lower mold (1), and the detection end of the pressure sensor (31) is fixedly installed with the pressure bearing plate (32).
4. The hardware injection molding mold of claim 3, wherein: The mold locking top block (4) comprises a protection spring (41) for protection and a movable block (42) for support, the protection spring (41) is fixedly installed at the top end of the pressure bearing plate (32), and the top end of the protection spring (41) is fixedly installed with the movable block (42).
5. A hardware injection molding mold as claimed in claim 4, characterized in that: The display screen (5) is fixedly installed at one end of the injection mold lower mold (1), and the temperature sensor (6) is fixedly installed in the inside of the injection mold upper mold (2).
6. A hardware injection molding mold as claimed in claim 5, characterized in that: The diameter of the mold locking guide rod (7) is the same as the diameter of the guide groove, and the top end of the mold locking guide rod (7) is provided with a fixing groove for fixing the magnet sheet (8).
7. A hardware injection molding mold as claimed in claim 6, characterized in that: The elastic support pad (9) comprises a support pad (91) as a support base, a connecting spring (92) for support and a protection pad (93) for movement, the support pad (91) is fixedly installed in the inside of the injection mold lower mold (1), the top end of the support pad (91) is fixedly installed with the connecting spring (92), and the top end of the connecting spring (92) is fixedly installed with the protection pad (93).