Temperature detection alarm device for injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold temperature detection alarm device which comprises an injection molding machine tool, a left mold and a right mold, the left mold and the right mold are arranged in the injection molding machine tool, a machine tool temperature sensor is mounted on the upper surface of the injection molding machine tool, and a mold temperature sensor is mounted on the surface of the left mold. A water cooling mechanism is arranged on the surface of the left mold, and an air cooling mechanism is arranged on the surface of one side of the injection molding machine tool. According to the injection mold temperature detection and alarm device, by arranging the air cooling mechanism, the interior of the injection molding machine body can be conveniently cooled through cold air, meanwhile, the air cooling mechanism is matched with the water cooling mechanism, the mold temperature is further reduced, and meanwhile a driving motor drives a conical opening to move left and right, so that the cold air can be evenly distributed in the injection molding machine body; and then the extrusion plate is driven by the servo motor to extrude the rubber cap to lubricate the screw rod, so that the effect of cooling and radiating the injection molding machine tool is achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold temperature detection alarm device. Background Technology

[0002] Chinese Patent CN117962257B discloses a temperature detection alarm device and method for EPP injection molds, comprising: a base, a mounting frame, a female mold, a sliding rod, a moving plate, a male mold, an oil cooling mechanism, an ejector mechanism, a temperature control mechanism, a push plate, a mounting plate, a back plate, a controller, an injection port, and a first electrically controlled telescopic rod. The mounting frame is located on the top right side of the base, and the female mold is fixedly mounted on the right side of the mounting frame. This invention employs a cooling oil cooling solution, resulting in a wider operating temperature range. It allows for the discharge of cooling oil during heating, preventing residual cooling oil from causing inaccurate temperature control and avoiding cooling oil vaporization during heating. It enables temperature control and detection of the oil return pipe, oil tank, and mold, preventing localized overheating from affecting production, facilitating more precise temperature control, and achieving automatic demolding of the workpiece.

[0003] However, the temperature detection alarm device in the aforementioned patent uses cooling oil to cool the mold, but it cannot cool the machine tool in time. This can cause the machine tool itself to get hotter and hotter during repeated injection molding, which may lead to equipment failure, affect product quality and production efficiency. Utility Model Content

[0004] Based on the aforementioned technical problems, this utility model proposes a temperature detection alarm device for injection molds.

[0005] This utility model proposes an injection mold temperature detection alarm device, including an injection molding machine tool and a left mold and a right mold disposed inside the injection molding machine tool. A machine tool temperature sensor is installed on the upper surface of the injection molding machine tool, a mold temperature sensor is installed on the surface of the left mold, a water cooling mechanism is provided on the surface of the left mold, and an air cooling mechanism is provided on one side surface of the injection molding machine tool.

[0006] The water-cooling mechanism includes a water tank containing coolant, through which the heat of the injection mold is transferred by the circulating flow of coolant in the water tank.

[0007] The air-cooling mechanism includes a folded air outlet pipe for transporting cold air. A tapered opening is fixedly connected to one end of the folded air outlet pipe near the injection molding machine tool, and the cold air blown out through the tapered opening dissipates heat from the injection molding machine tool.

[0008] Preferably, the water cooling mechanism further includes a water cooling block disposed on one side of the left mold, the interior of the water cooling block having a serpentine water channel, with an inlet pipe and an outlet pipe extending to both ends of the serpentine water channel respectively, the injection molding machine tool having a water storage tank inside, a water pump mounted on the upper surface of the water storage tank, the suction end of the water pump extending into the interior of the water storage tank, the outlet end of the water pump being fixedly connected to one end of the inlet pipe, a valve being installed on the outer surface of the inlet pipe, and one end of the outlet pipe being fixedly connected to the surface of the water storage tank.

[0009] With the above technical solution, when the mold temperature sensor detects that the temperature of the left mold has reached the preset temperature, the valve is opened, and the cooling water in the water tank is drawn by the water pump and transported to the serpentine water channel of the water cooling block through the water inlet pipe to cool the mold. The cooled water returns to the water tank through the water outlet pipe to form a cycle. When the temperature detected by the mold temperature sensor drops, the valve is closed so that all the cooling water in the serpentine water channel returns to the water tank.

[0010] Preferably, the air-cooling mechanism further includes a mounting groove formed on the surface of the injection molding machine tool. A screw is mounted on the inner wall of the mounting groove via a bearing. A drive motor is fixedly mounted on the surface of the injection molding machine tool. One end of the output shaft of the drive motor is fixedly connected to one end of the screw. A T-shaped block is threaded onto the surface of the screw. The surface of the T-shaped block is slidably engaged with the inner wall of the mounting groove. A guide rail is fixedly mounted on the outer surface of the mounting groove. A slider is provided on the guide rail. One side surface of the T-shaped block is fixedly connected to one side surface of the slider. An L-shaped plate is fixedly connected to the other side surface of the slider. A mounting ring is fixedly fitted onto the surface of the tapered opening. The surface of the mounting ring is fixedly connected to the surface of the L-shaped plate.

[0011] Through the above technical solution, the rotation of the output shaft of the drive motor drives the screw connected to it to rotate. The rotation of the screw drives the T-block connected to it to move along the inner wall of the mounting groove. The movement of the T-block drives the slider to move along the guide rail surface. At the same time, the movement of the slider drives the conical opening to move through the mounting ring, so that the cold air can enter the injection molding machine tool evenly for heat dissipation.

[0012] Preferably, a bracket is fixedly installed on the upper surface of the injection molding machine tool near the mounting groove, a rubber cap containing lubricating oil is provided on one side of the upper surface of the bracket, a dropper is fixedly connected to the lower surface of the rubber cap, and an oil inlet is opened on the upper surface of the T-shaped block.

[0013] The above technical solution allows lubricating oil to enter the T-block through the oil inlet, making the contact between the T-block and the screw smoother.

[0014] Preferably, a concave seat is fixedly installed on the upper surface of the bracket, a bidirectional lead screw is installed on the inner wall of the concave seat through a bearing, a servo motor is fixedly installed on one side surface of the concave seat, one end of the output shaft of the servo motor is fixedly sleeved with one end of the bidirectional lead screw, and extrusion plates are symmetrically distributed on the surface of the bidirectional lead screw, with the rubber cap located between the two extrusion plates.

[0015] Through the above technical solution, the rotation of the servo motor output shaft drives the bidirectional lead screw connected to it to rotate. The rotation of the bidirectional lead screw drives the two extrusion plates connected to it to move relative to each other along the inner wall of the concave seat. As the two extrusion plates approach the extrusion cap, it is convenient for lubricating oil to enter the T-block through the oil inlet.

[0016] Preferably, a limit sensor is fixedly installed on the lower surface of the bracket, and the limit sensor is connected to the servo motor through an electrical circuit.

[0017] Through the above technical solution, the limit sensor detects the movement position of the T-block. When the T-block reaches the preset limit position, the limit sensor transmits the signal to the servo motor through the electrical circuit. After receiving the signal, the servo motor adjusts its operating state according to the preset program or control command, thereby realizing precise control of the movement of the mechanical equipment.

[0018] Preferably, an alarm is fixedly installed on the upper surface of the controller of the injection molding machine tool, and the alarm is connected to the mold temperature sensor and the machine tool temperature sensor through electrical circuits.

[0019] Through the above technical solution, the mold temperature sensor and the machine tool temperature sensor respectively detect the temperature status of the mold and the injection molding machine tool, and transmit the detected signals to the controller. After receiving the signals, the controller analyzes and processes them to determine whether the preset alarm conditions have been met. When the detected temperature exceeds the preset safety threshold or other abnormal conditions occur, the controller triggers the alarm. After receiving the trigger signal, the alarm emits sound or light signals to remind the operator to pay attention and take appropriate measures in time.

[0020] The beneficial effects of this utility model are as follows:

[0021] By setting up an air-cooling mechanism, it is easy to use cold air to cool the inside of the injection molding machine. At the same time, it works in conjunction with the water-cooling mechanism to further reduce the mold temperature. Meanwhile, the drive motor moves the conical nozzle left and right, so that the cold air can be evenly distributed in the injection molding machine. Then, the servo motor drives the extrusion plate to squeeze the rubber cap to lubricate the screw, thereby achieving the effect of cooling and heat dissipation of the injection molding machine. Attached Figure Description

[0022] Figure 1This is a schematic diagram of a temperature detection and alarm device for injection molds proposed in this utility model;

[0023] Figure 2 This is a perspective view of the water storage tank structure of the injection mold temperature detection alarm device proposed in this utility model;

[0024] Figure 3 This is a three-dimensional view of the serpentine waterway structure of an injection mold temperature detection alarm device proposed in this utility model;

[0025] Figure 4 This is a perspective view of the folded air outlet pipe structure of an injection mold temperature detection alarm device proposed in this utility model;

[0026] Figure 5 This is a perspective view of the screw structure of a temperature detection alarm device for injection molds proposed in this utility model;

[0027] Figure 6 This is a perspective view of the extrusion plate structure of an injection mold temperature detection alarm device proposed in this utility model.

[0028] In the diagram: 1. Injection molding machine tool; 2. Left mold; 3. Right mold; 4. Machine tool temperature sensor; 5. Mold temperature sensor; 6. Water tank; 61. Water cooling block; 62. Serpentine water channel; 63. Inlet pipe; 64. Outlet pipe; 65. Water pump; 66. Valve; 7. Folded air outlet pipe; 71. Conical opening; 72. Mounting slot; 73. Screw; 74. Drive motor; 75. T-block; 76. Guide rail; 77. Slider; 78. L-shaped plate; 79. Mounting ring; 710. Bracket; 711. Rubber cap; 712. Dropper; 713. Oil inlet; 714. Concave seat; 715. Bidirectional lead screw; 716. Servo motor; 717. Extrusion plate; 718. Limit sensor; 8. Alarm. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1-6 A temperature detection alarm device for injection molds includes an injection molding machine tool 1 and a left mold 2 and a right mold 3 disposed inside the injection molding machine tool 1. A machine tool temperature sensor 4 is installed on the upper surface of the injection molding machine tool 1, a mold temperature sensor 5 is installed on the surface of the left mold 2, a water cooling mechanism is provided on the surface of the left mold 2, and an air cooling mechanism is provided on one side surface of the injection molding machine tool 1.

[0031] The water cooling mechanism includes a water tank 6 containing coolant, which transfers heat from the injection mold through the circulating flow of coolant within the water tank 6.

[0032] To cool the mold, the water cooling mechanism also includes a water cooling block 61 located on one side of the left mold 2. The water cooling block 61 has a serpentine water channel 62 inside, with an inlet pipe 63 and an outlet pipe 64 extending from both ends of the serpentine water channel 62. The injection molding machine tool 1 has a water storage tank 6 inside, with a water pump 65 mounted on its upper surface. The suction end of the water pump 65 extends into the water storage tank 6, and the outlet end of the water pump 65 is fixedly connected to one end of the inlet pipe 63. A valve 66 is mounted on the outer surface of the inlet pipe 63. The outlet pipe 64... One end of 4 is fixedly connected to the surface of the water storage tank 6. When the mold temperature sensor 5 detects that the temperature of the left mold 2 has reached the preset temperature, the valve 66 is opened. The cooling water in the water storage tank 6 is drawn by the water pump 65 and transported to the serpentine water channel 62 of the water cooling block 61 through the water inlet pipe 63 to cool the mold. The cooled water returns to the water storage tank 6 through the water outlet pipe 64 to form a cycle. When the temperature detected by the mold temperature sensor 5 drops, the valve 66 is closed so that all the cooling water in the serpentine water channel 62 returns to the water storage tank 6.

[0033] The air-cooling mechanism includes a folded air outlet pipe 7 for transporting cold air. A conical nozzle 71 is fixedly sleeved at one end of the folded air outlet pipe 7 near the injection molding machine tool 1. The cold air blown out through the conical nozzle 71 dissipates heat from the injection molding machine tool 1.

[0034] To cool the interior of the injection molding machine, the air-cooling mechanism includes a mounting groove 72 on the surface of the injection molding machine tool 1. A screw 73 is mounted on the inner wall of the mounting groove 72 via bearings. A drive motor 74 is fixedly mounted on the surface of the injection molding machine tool 1. One end of the output shaft of the drive motor 74 is fixedly sleeved with one end of the screw 73. A T-shaped block 75 is threaded onto the surface of the screw 73. The surface of the T-shaped block 75 slides and engages with the inner wall of the mounting groove 72. A guide rail 76 is fixedly mounted on the outer surface of the mounting groove 72. A slider 77 is provided on the guide rail 76. One side surface of the T-shaped block 75 is fixedly connected to one side surface of the slider 77. Next, an L-shaped plate 78 is fixedly connected to the other side surface of the slider 77, and an mounting ring 79 is fixedly sleeved on the surface of the conical opening 71. The surface of the mounting ring 79 is fixedly connected to the surface of the L-shaped plate 78. The rotation of the output shaft of the drive motor 74 drives the screw 73 connected to it to rotate. The rotation of the screw 73 drives the T-shaped block 75 connected to it to move along the inner wall of the mounting groove 72. The movement of the T-shaped block 75 drives the slider 77 to move along the surface of the guide rail 76. At the same time, the movement of the slider 77 drives the conical opening 71 to move through the mounting ring 79, so that the cold air can enter the injection molding machine tool 1 evenly for heat dissipation.

[0035] To facilitate lubrication of the screw 73, a bracket 710 is fixedly installed on the upper surface of the injection molding machine tool 1 near the mounting groove 72. A rubber cap 711 containing lubricating oil is provided on one side of the upper surface of the bracket 710. A dropper 712 is fixedly connected to the lower surface of the rubber cap 711. An oil inlet 713 is provided on the upper surface of the T-block 75, so that the lubricating oil enters the interior of the T-block 75 through the oil inlet 713, making the contact between the T-block 75 and the screw 73 smoother.

[0036] To compress the cap 711, a concave seat 714 is fixedly installed on the upper surface of the bracket 710. A bidirectional lead screw 715 is installed on the inner wall of the concave seat 714 via bearings. A servo motor 716 is fixedly installed on one side surface of the concave seat 714. One end of the output shaft of the servo motor 716 is fixedly sleeved with one end of the bidirectional lead screw 715. The surface of the bidirectional lead screw 715 is symmetrically threaded with compression plates 717. The cap 711 is located between the two compression plates 717. The rotation of the output shaft of the servo motor 716 drives the bidirectional lead screw 715 connected to it to rotate. The rotation of the bidirectional lead screw 715 drives the two compression plates 717 connected to it to move relative to each other along the inner wall of the concave seat 714. As the two compression plates 717 approach and compress the cap 711, lubricating oil can easily enter the T-block 75 through the oil inlet 713.

[0037] To align the oil inlet 713 with the dropper 712, a limit sensor 718 is fixedly installed on the lower surface of the bracket 710. The limit sensor 718 is connected to the servo motor 716 via electrical wiring. The limit sensor 718 detects the movement position of the T-block 75. When the T-block 75 reaches the preset limit position, the limit sensor 718 transmits the signal to the servo motor 716 via electrical wiring. After receiving the signal, the servo motor 716 adjusts its operating state according to the preset program or control instructions, thereby achieving precise control of the movement of the mechanical equipment.

[0038] To monitor the temperature in real time and provide timely alerts in case of malfunctions, an alarm 8 is fixedly installed on the upper surface of the controller of the injection molding machine tool 1. The alarm 8 is connected to the mold temperature sensor 5 and the machine tool temperature sensor 4 via electrical wiring. The mold temperature sensor 5 and the machine tool temperature sensor 4 detect the temperature status of the mold and the injection molding machine tool 1, respectively, and transmit the detected signals to the controller. After receiving the signals, the controller analyzes and processes them to determine whether the preset alarm conditions have been met. When the detected temperature exceeds the preset safety threshold or other abnormal conditions occur, the controller triggers the alarm 8. After receiving the trigger signal, the alarm 8 emits an audible or visual signal to alert the operator and prompt them to take appropriate measures.

[0039] By setting up an air-cooling mechanism, it is convenient to use cold air to cool the inside of the injection molding machine body 1. At the same time, it works in conjunction with the water-cooling mechanism to further reduce the mold temperature. Meanwhile, the drive motor 74 drives the conical nozzle 71 to move left and right, so that the cold air can be evenly distributed inside the injection molding machine body 1. Then, the servo motor 716 drives the extrusion plate 717 to extrude the rubber cap to lubricate the screw 73, thereby achieving the effect of cooling and heat dissipation of the injection molding machine tool 1.

[0040] Working principle: During use, the mold temperature sensor 5 and the machine tool temperature sensor 4 detect the temperature of the left mold 2 and the injection molding machine tool 1;

[0041] When the mold temperature sensor 5 detects that the temperature of the left mold 2 has reached the preset temperature, the valve 66 is opened, and the cooling water in the water storage tank 6 is drawn by the water pump 65 and transported to the serpentine water channel 62 of the water cooling block 61 through the water inlet pipe 63 to cool the mold. The cooled water returns to the water storage tank 6 through the water outlet pipe 64 to form a cycle. When the temperature detected by the mold temperature sensor 5 drops, the valve 66 is closed so that all the cooling water in the serpentine water channel 62 returns to the water storage tank 6.

[0042] When the machine tool temperature sensor 4 detects that the temperature of the injection molding machine tool 1 has reached the preset temperature, the fan is activated, causing the fan to guide cool air into the folded air outlet and blow the cool air into the injection molding machine tool 1 from the conical opening 71. At the same time, the drive motor 74 is activated, and the rotation of the output shaft of the drive motor 74 drives the screw 73 connected to it to rotate. The rotation of the screw 73 causes the T-block 75 connected to it to move along the inner wall of the mounting groove 72. The movement of the T-block 75 causes the slider 77 to move along the surface of the guide rail 76. At the same time, the movement of the slider 77 is driven by the mounting ring 79. The conical opening 71 moves to facilitate the uniform entry of cold air into the injection molding machine tool 1 for heat dissipation. When the limit sensor 718 detects the position of the T-block 75, the drive motor 74 stops running and the servo motor 716 starts. The rotation of the output shaft of the servo motor 716 drives the bidirectional lead screw 715 connected to it to rotate. The rotation of the bidirectional lead screw 715 drives the two extrusion plates 717 connected to it to move relative to each other along the inner wall of the concave seat 714. As the two extrusion plates 717 approach the extrusion cap 711, it is convenient for lubricating oil to enter the T-block 75 through the oil inlet 713.

[0043] When the mold sensor and machine tool temperature sensor 4 detect that the temperature of the mold and injection molding machine tool 1 does not drop or drops too slowly, the controller triggers the alarm 8 to remind the operator.

[0044] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An injection mold temperature detection alarm device, comprising an injection machine bed (1) and a left mold (2) and a right mold (3) arranged inside the injection machine bed (1), characterized in that: A machine tool temperature sensor (4) is installed on the upper surface of the injection molding machine tool (1), a mold temperature sensor (5) is installed on the surface of the left mold (2), a water cooling mechanism is provided on the surface of the left mold (2), and an air cooling mechanism is provided on one side surface of the injection molding machine tool (1). The water cooling mechanism includes a water tank (6) containing coolant, and the heat of the injection mold is transferred through the circulating flow of coolant in the water tank (6). The air-cooling mechanism includes a folded air outlet pipe (7) for transporting cold air. A conical opening (71) is fixedly sleeved at one end of the folded air outlet pipe (7) near the injection molding machine tool (1). The cold air blown out through the conical opening (71) dissipates heat from the injection molding machine tool (1).

2. The injection mold temperature detection alarm apparatus of claim 1, wherein: The water cooling mechanism also includes a water cooling block (61) disposed on one side of the left mold (2). The water cooling block (61) has a serpentine water channel (62) inside. The two ends of the serpentine water channel (62) extend to an inlet pipe (63) and an outlet pipe (64) respectively. The injection molding machine tool (1) has a water storage tank (6) inside. A water pump (65) is installed on the upper surface of the water storage tank (6). The suction end of the water pump (65) extends into the interior of the water storage tank (6). The outlet end of the water pump (65) is fixedly connected to one end of the inlet pipe (63). A valve (66) is installed on the outer surface of the inlet pipe (63). One end of the outlet pipe (64) is fixedly connected to the surface of the water storage tank (6).

3. The injection mold temperature detection alarm apparatus of claim 1, wherein: The air-cooling mechanism also includes a mounting groove (72) formed on the surface of the injection molding machine tool (1). A screw (73) is mounted on the inner wall of the mounting groove (72) via a bearing. A drive motor (74) is fixedly mounted on the surface of the injection molding machine tool (1). One end of the output shaft of the drive motor (74) is fixedly sleeved with one end of the screw (73). A T-shaped block (75) is threaded onto the surface of the screw (73). The surface of the T-shaped block (75) is connected to the inner wall of the mounting groove (72). The wall slides and snaps together. A guide rail (76) is fixedly installed on the outer surface of the mounting groove (72). A slider (77) is provided on the guide rail (76). One side surface of the T-shaped block (75) is fixedly connected to one side surface of the slider (77). An L-shaped plate (78) is fixedly connected to the other side surface of the slider (77). An mounting ring (79) is fixedly sleeved on the surface of the conical opening (71). The surface of the mounting ring (79) is fixedly connected to the surface of the L-shaped plate (78).

4. The injection mold temperature detection alarm apparatus of claim 3, wherein: The injection molding machine tool (1) has a bracket (710) fixedly installed on the upper surface near the mounting groove (72). A rubber cap (711) containing lubricating oil is provided on one side of the upper surface of the bracket (710). A dropper (712) is fixedly connected to the lower surface of the rubber cap (711). An oil inlet (713) is opened on the upper surface of the T-shaped block (75).

5. The injection mold temperature detection alarm apparatus of claim 4, wherein: A concave seat (714) is fixedly installed on the upper surface of the bracket (710). A bidirectional lead screw (715) is installed on the inner wall of the concave seat (714) through a bearing. A servo motor (716) is fixedly installed on one side surface of the concave seat (714). One end of the output shaft of the servo motor (716) is fixedly sleeved with one end of the bidirectional lead screw (715). The surface of the bidirectional lead screw (715) is symmetrically threaded with extrusion plates (717). The rubber cap (711) is located between the two extrusion plates (717).

6. The injection mold temperature detection alarm apparatus of claim 5, wherein: A limit sensor (718) is fixedly installed on the lower surface of the bracket (710), and the limit sensor (718) is connected to the servo motor (716) through electrical circuits.

7. The injection mold temperature detection alarm apparatus of claim 1, wherein: An alarm (8) is fixedly installed on the upper surface of the controller of the injection molding machine (1). The alarm (8) is connected to the mold temperature sensor (5) and the machine tool temperature sensor (4) through electrical circuits.

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