A rapid positioning mechanism for plastic mold production and processing

Abstract

The utility model provides a kind of quick positioning mechanism for plastic mould production and processing, it is related to positioning mechanism technical field, including the lower die seat of inside being provided with guide pillar and the upper die seat of inside being provided with guide bush, the bottom of the upper die seat is fixedly installed with laser transmitter, the lower coaxial of the laser transmitter is provided with laser receiver. The utility model has the advantages that: the laser transmitter and laser receiver of coaxial distribution are respectively arranged in the upper die seat and the lower die seat of plastic mould, laser signal is emitted to laser receiver using laser transmitter, the positioning accuracy of upper die seat and lower die seat is judged by the processing of laser signal to laser receiver, and the continuity of continuous detection is facilitated to the large interval positioning of large opening mould by the continuity detection of laser emission, whether misplacement in mould closing process is judged using the linearity of laser, the accuracy of mould positioning is guaranteed, and it is beneficial to improve the accuracy and accuracy of mould quick positioning.

Description

Technical Field

[0001] This utility model relates to the field of positioning mechanism technology, and in particular to a rapid positioning mechanism for plastic mold production and processing. Background Technology

[0002] Plastic molds are tools used for the mass production of plastic products. Molten plastic raw material is injected into the mold cavity, and after cooling and solidification, a product conforming to the shape of the cavity is obtained. They are widely used in many fields such as electronics, automobiles, home appliances, medical devices, and daily necessities, and are core equipment in the plastics industry. During the plastic mold production process, a rapid positioning mechanism is needed to position the mold, preventing it from shifting during the reaming process and affecting processing accuracy, thereby improving production efficiency.

[0003] However, existing quick positioning mechanisms for plastic molds usually have a limited positioning range. When the mold opening size is large, the large spacing makes it inconvenient to position the mold after it is closed, and it is also inconvenient to detect the position of the mold. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a quick positioning mechanism for plastic mold production and processing, so as 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 rapid positioning mechanism for plastic mold manufacturing, including a lower mold base with guide pillars inside and an upper mold base with guide sleeves inside. A tapered positioning pin for guiding and positioning is fixedly installed inside the lower mold base. An alignment positioning hole is opened inside the upper mold base to align with the tapered positioning pin. A magnetic attraction block is provided on the surface of the tapered positioning pin. An adsorption guide strip made of stainless steel is provided inside the alignment positioning hole. A laser emitter is fixedly installed at the bottom of the upper mold base, and a coaxial arrangement is provided below the laser emitter. The system includes a laser receiver, and both the laser emitter and receiver are signal-connected to a microcontroller unit for signal processing and automated control. An electrical control box is installed at one end of the lower mold base to automatically detect and control the internal structure of the mold. The microcontroller unit is located inside the electrical control box, which can also house various electronic components and control modules to detect data inside the mold. The electrical control box is signal-connected to the control system on the mold production line to ensure the overall stability of the mold operation. The microcontroller unit is signal-connected to an alarm device. Mold closing guide plates that assist in guiding the upper mold base are fixedly installed at both ends of the lower mold base.

[0006] Preferably, in any of the above embodiments, the conical positioning pin and the centering positioning hole are coaxially distributed, and the interior of the conical positioning pin and the centering positioning hole are respectively provided with connecting grooves for fixing the adsorption traction block and the adsorption guide strip.

[0007] The above technical solution is adopted: the conical positioning pin and the centering positioning hole are coaxially distributed, and the initial centering is achieved by the conical surface guidance. The internal connecting grooves of the two fix the adsorption traction block (neodymium iron boron magnet) and the adsorption guide strip (stainless iron material) respectively. When the mold is closed, the magnetic force pulls the upper mold base to automatically correct the offset, reducing the positioning error caused by mechanical wear.

[0008] Preferably, in any of the above embodiments, the adsorption traction block is located above the lower mold base, the adsorption guide strip is fixedly installed inside the upper mold base, the conical positioning pin and the laser receiver are vertically distributed on adjacent sides of the lower mold base, the laser receiver is located at the top of the lower mold base, and the laser generator and the laser receiver are coaxially distributed.

[0009] The above technical solution is adopted: the adsorption traction block is embedded in the upper part of the conical positioning pin, and the adsorption guide strip is arranged in a ring on the inner wall of the centering positioning hole. When the two are closed and in contact with the top surface of the conical positioning pin, a magnetic force is generated, which pulls the upper mold base to move towards the center (the moving speed increases as the distance decreases). The magnetic positioning and the mechanical conical positioning form a two-level positioning of "coarse adjustment + fine adjustment", which shortens the centering time and improves the positioning repeatability accuracy.

[0010] Preferably, in any of the above embodiments, the surfaces of both the laser generator and the laser receiver are provided with mounting bases for protection and fixation, and the interior of the mounting base is provided with a protective rubber pad with a central opening.

[0011] The above technical solution is adopted: the laser emitter and laser receiver are coaxially distributed and fixed by a mounting base (aluminum alloy material). The protective rubber pad (silicone material) seals the center opening to prevent dust contamination. During the mold closing process, the laser receiver detects the beam offset in real time. When the offset is too large, the micro-control unit triggers an alarm to ensure positioning accuracy.

[0012] Preferably, in any of the above solutions, the alarm is fixedly installed at one end of the bottom of the lower mold base, and a display screen connected to the microcontroller unit is provided on one side of the alarm.

[0013] The above technical solution is adopted: the alarm is fixed at the bottom of the lower mold base and connected to the micro-control unit. When the positioning deviation exceeds the limit, an audible and visual alarm is issued. The display screen on the same side displays the offset and mold closing progress in real time, which makes it convenient for operators to make timely adjustments and reduce the scrap rate.

[0014] Preferably, in any of the above embodiments, the mold closing guide plate is fixedly installed at both ends of the lower mold base by bolts, the top of the mold closing guide plate is provided with a 10-degree tilt angle, the tilt angle is located above the lower mold base, and a pressure detection plate that is connected to the microcontroller unit is fixedly installed inside the mold closing guide plate.

[0015] The above technical solution is adopted: the mold closing guide plate is fixed to both ends of the lower mold base with bolts, and the top end is inclined at 10° to form a guide slope. When the mold opening gap is large, it guides the upper mold base to be initially aligned. The installation reliability of the mold closing guide plate is tested by using pressure testing plates.

[0016] Preferably, in any of the above embodiments, the pressure detection piece includes a pressure sensor connected to the microcontroller unit and an extrusion piece that bears pressure. The pressure sensor is fixedly installed inside the mold closing guide plate, and the detection end of the pressure sensor is fixedly installed with the extrusion piece located inside the mold closing guide plate.

[0017] The above technical solution is adopted: the pressure sensor is embedded inside the mold closing guide plate, the extrusion plate protrudes from the surface of the guide plate, and the mold closing guide plate generates a pressure signal when it contacts the lower mold base during installation. The microcontroller unit judges whether the mold closing guide plate is loose by the pressure change curve. When abnormal pressure fluctuation occurs, the mold closing guide plate is immediately disassembled and maintained.

[0018] In the open mold state, the upper mold base descends, and the 10° tilt angle of the mold closing guide plate guides its initial alignment. The pressure detection plate monitors the contact pressure. When the mold closing gap is small, the adsorption traction block and the adsorption guide strip generate magnetic force, pulling the upper mold base to make a fine adjustment towards the center. The laser emitter emits a beam to the laser receiver, which detects the offset in real time and transmits it to the microcontroller unit. The conical positioning pin is inserted into the centering positioning hole, and the mechanical conical surface achieves precise positioning. The magnetic force helps to eliminate the final gap. If the positioning deviation exceeds the limit, the alarm sounds, the mold closing action is paused, and the microcontroller unit presets a threshold to ensure mold safety.

[0019] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0020] 1. Coaxially distributed laser emitters and laser receivers are installed inside the upper and lower mold bases of the plastic mold. The laser emitter emits laser signals to the laser receiver, and the laser receiver processes the laser signals to determine the positioning accuracy of the upper and lower mold bases. The continuous detection of laser emission facilitates continuous detection of positioning with large gaps in the mold opening. The linearity of the laser is used to determine whether the mold is misaligned during the mold closing process, ensuring the positioning accuracy of the mold and improving the accuracy and precision of rapid mold positioning.

[0021] 2. Adsorption traction blocks and adsorption guide strips are respectively installed inside the conical positioning pins and centering positioning holes for positioning the mold. By utilizing the magnetic traction and magnetic field force between the adsorption traction blocks and adsorption guide strips, the mold can be aligned more quickly and accurately, reducing the alignment deviation caused by structural wear and improving the positioning accuracy.

[0022] 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

[0023] 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:

[0024] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the lower mold base according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the upper mold base according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the first cross-sectional structure of the lower mold base according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the second-direction cross-sectional structure of the lower mold base according to an embodiment of the present utility model;

[0029] Figure 6 According to the embodiments of this utility model Figure 5 Enlarged structural diagram at point A;

[0030] Among them: 1-lower mold base, 2-upper mold base, 3-conical positioning pin, 4-centering positioning hole, 5-adsorption traction block, 6-adsorption guide strip, 7-laser emitter, 8-laser receiver, 9-alarm, 10-mold closing guide plate, 11-mounting base, 12-protective rubber pad, 13-pressure detection plate, 131-pressure sensor, 132-extrusion plate. Detailed Implementation

[0031] 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.

[0032] like Figures 1-6As shown in the figure, a quick positioning mechanism for plastic mold production and processing according to an embodiment of the present invention includes a lower mold base 1 with a guide post inside and an upper mold base 2 with a guide sleeve inside. A tapered positioning pin 3 for guiding and positioning is fixedly installed inside the lower mold base 1. A centering positioning hole 4 is opened inside the upper mold base 2 to center and position with the tapered positioning pin 3. A magnetic adsorption traction block 5 is provided on the surface of the tapered positioning pin 3. An adsorption guide strip 6 made of stainless iron is provided inside the centering positioning hole 4. A laser emitter 7 is fixedly installed at the bottom of the upper mold base 2, and a laser receiver is coaxially arranged below the laser emitter 7. 8. Both the laser emitter 7 and the laser receiver 8 are connected to a microcontroller unit for signal processing and automated control. An electrical control box for automated detection and control of the internal structure of the mold is set at one end of the lower mold base 1. The microcontroller unit is set inside the electrical control box, and various electronic components and control modules can also be set inside the electrical control box to realize data detection inside the mold. The electrical control box is connected to the control system on the mold production line to ensure the overall stability of the mold operation. The microcontroller unit is connected to an alarm 9 for alarm. Mold closing guide plates 10 are fixedly installed at both ends of the lower mold base 1 to assist the upper mold base 2 in guiding.

[0033] Preferably, in any of the above schemes, the conical positioning pin 3 and the centering positioning hole 4 are coaxially distributed, and the interior of the conical positioning pin 3 and the centering positioning hole 4 are respectively provided with connecting grooves for fixing the adsorption traction block 5 and the adsorption guide strip 6.

[0034] The above technical solution is adopted: the conical positioning pin 3 and the centering positioning hole 4 are coaxially distributed, and the initial centering is achieved by the conical surface guide. The internal connecting grooves of the two fix the adsorption traction block 5 (neodymium iron boron magnet) and the adsorption guide strip 6 (stainless iron material) respectively. When the mold is closed, the magnetic force pulls the upper mold base 2 to automatically correct the offset, reducing the positioning error caused by mechanical wear.

[0035] Preferably, in any of the above schemes, the adsorption traction block 5 is located above the lower mold base 1, the adsorption guide strip 6 is fixedly installed inside the upper mold base 2, the conical positioning pin 3 and the laser receiver 8 are vertically distributed on the adjacent sides of the lower mold base 1, the laser receiver 8 is located at the top of the lower mold base 1, and the laser generator 7 and the laser receiver 8 are coaxially distributed.

[0036] The above technical solution is adopted: the adsorption traction block 5 is embedded in the upper part of the conical positioning pin 3, and the adsorption guide strip 6 is arranged in a ring on the inner wall of the centering positioning hole 4. When the two are closed and attached to the top surface of the conical positioning pin 3, they generate a magnetic force, which pulls the upper mold base 2 to move towards the center (the moving speed increases as the distance decreases). The magnetic positioning and mechanical conical positioning form a two-level positioning of "coarse adjustment + fine adjustment", which shortens the centering time and improves the positioning repeatability accuracy.

[0037] Preferably, in any of the above solutions, the surfaces of both the laser generator 7 and the laser receiver 8 are provided with mounting bases 11 for protection and fixation, and the interior of the mounting base 11 is provided with a protective rubber pad 12 with a central opening.

[0038] The above technical solution is adopted: the laser emitter 7 and the laser receiver 8 are coaxially distributed and fixed by the mounting base 11 (aluminum alloy material). The protective rubber pad 12 (silicone material) seals the center opening to prevent dust contamination. During the mold closing process, the laser receiver detects the beam offset in real time. When the offset is too large, the micro-control unit triggers the alarm 9 for early warning to ensure positioning accuracy.

[0039] Preferably, of any of the above solutions, the alarm 9 is fixedly installed at one end of the bottom of the lower mold base 1, and a display screen connected to the microcontroller unit is provided on one side of the alarm 9.

[0040] The above technical solution is adopted: the alarm 9 is fixed at the bottom of the lower mold base 1 and connected to the micro-control unit. When the positioning deviation exceeds the limit, an audible and visual alarm is issued. The display screen on the same side displays the offset and mold closing progress in real time, which makes it convenient for operators to make timely adjustments and reduce the scrap rate.

[0041] Preferably, in any of the above schemes, the mold closing guide plate 10 is fixedly installed at both ends of the lower mold base 1 by bolts, the top of the mold closing guide plate 10 is provided with a 10-degree tilt angle, the tilt angle is located above the lower mold base 1, and a pressure detection plate 13 connected to the microcontroller unit is fixedly installed inside the mold closing guide plate 10.

[0042] Using the above technical solution: the mold closing guide plate 10 is fixed to both ends of the lower mold base 1 by bolts, and the top end is inclined at 10° to form a guide slope. When the mold opening gap is large, it guides the upper mold base 2 to be initially aligned. The installation reliability of the mold closing guide plate 10 is tested by the pressure detection plate 13.

[0043] Preferably, in any of the above solutions, the pressure detection piece 13 includes a pressure sensor 131 connected to the microcontroller unit and an extrusion piece 132 that bears pressure. The pressure sensor 131 is fixedly installed inside the mold closing guide plate 10, and the extrusion piece 132 located inside the mold closing guide plate 10 is fixedly installed at the detection end of the pressure sensor 131.

[0044] The above technical solution is adopted: the pressure sensor 131 is embedded inside the mold closing guide plate 10, the extrusion plate 132 protrudes from the surface of the guide plate, and the mold closing guide plate 10 generates a pressure signal when it contacts the lower mold base during installation. The microcontroller unit judges whether the mold closing guide plate 10 is loose by the pressure change curve. When abnormal pressure fluctuation occurs, the mold closing guide plate 10 is immediately disassembled and maintained.

[0045] The working principle of this utility model is as follows: A quick positioning mechanism for plastic mold production and processing.

[0046] When the upper mold base 2 moves downward, the mold closing guide plates 10 at both ends of the lower mold base 1 are initially guided by a 10° tilt angle. After the extrusion plate 132 of the pressure detection plate 13 is pressed, the pressure sensor 131 transmits the signal to the microcontroller unit. When the gap narrows, the adsorption traction block 5 on the surface of the conical positioning pin 3 and the adsorption guide strip 6 in the centering positioning hole 4 generate magnetic force, pulling the upper mold base 2 to center. The laser emitted by the laser emitter 7 is received by the laser receiver 8, which detects the offset in real time and feeds it back to the microcontroller unit. If the offset exceeds the limit, the microcontroller unit controls the alarm 9 to sound an alarm. Finally, the conical positioning pin 3 is inserted into the centering positioning hole 4 to complete the precise positioning.

[0047] Compared with the prior art, the present invention has the following advantages:

[0048] 1. A laser emitter 7 and a laser receiver 8 are coaxially distributed inside the upper mold base 2 and lower mold base 1 of the plastic mold, respectively. The laser emitter 7 emits a laser signal to the laser receiver 8. The laser receiver 8 processes the laser signal to determine the positioning accuracy of the upper mold base 2 and lower mold base 1. The continuous detection of laser emission facilitates continuous detection of positioning with large gaps in the mold opening. The linearity of the laser is used to determine whether the mold is misaligned during the mold closing process, ensuring the positioning accuracy of the mold and improving the accuracy and precision of rapid mold positioning.

[0049] 2. Adsorption traction block 5 and adsorption guide strip 6 are respectively installed inside the conical positioning pin 3 and the centering positioning hole 4 for positioning the mold. By utilizing the magnetic traction and magnetic field force between the adsorption traction block 5 and the adsorption guide strip 6, the mold can be aligned more quickly and accurately, reducing the centering deviation caused by structural wear and improving the positioning accuracy.

Claims

1. A quick positioning mechanism for plastic mold manufacturing, comprising a lower mold base (1) with guide pillars inside and an upper mold base (2) with guide sleeves inside, wherein a tapered positioning pin (3) for guiding and positioning is fixedly installed inside the lower mold base (1), and a centering positioning hole (4) for centering and positioning with the tapered positioning pin (3) is opened inside the upper mold base (2), characterized in that: The surface of the tapered positioning pin (3) is provided with an adsorption traction block (5) made of magnets. The interior of the centering positioning hole (4) is provided with an adsorption guide strip (6) made of stainless iron. A laser emitter (7) is fixedly installed at the bottom of the upper mold base (2). A laser receiver (8) is coaxially arranged below the laser emitter (7). Both the laser emitter (7) and the laser receiver (8) are signal connected to a microcontroller unit for signal processing and automatic control. The microcontroller unit is signal connected to an alarm (9) for alarm. Mold closing guide plates (10) that assist the upper mold base (2) are fixedly installed at both ends of the lower mold base (1).

2. The quick positioning mechanism for plastic mold production and processing as described in claim 1, characterized in that: The conical positioning pin (3) and the centering positioning hole (4) are coaxially distributed. The conical positioning pin (3) and the centering positioning hole (4) are respectively provided with connecting grooves for fixing the adsorption traction block (5) and the adsorption guide strip (6).

3. The quick positioning mechanism for plastic mold production and processing as described in claim 2, characterized in that: The adsorption traction block (5) is located above the lower mold base (1), the adsorption guide strip (6) is fixedly installed inside the upper mold base (2), the conical positioning pin (3) and the laser receiver (8) are vertically distributed on the adjacent sides of the lower mold base (1), the laser receiver (8) is located at the top of the lower mold base (1), and the laser emitter (7) and the laser receiver (8) are coaxially distributed.

4. The quick positioning mechanism for plastic mold production and processing as described in claim 3, characterized in that: The laser emitter (7) and the laser receiver (8) are both provided with mounting bases (11) for protection and fixation, and the interior of the mounting base (11) is provided with a protective rubber pad (12) with a central opening.

5. The quick positioning mechanism for plastic mold production and processing as described in claim 4, characterized in that: The alarm (9) is fixedly installed at one end of the bottom of the lower mold base (1), and a display screen connected to the micro-control unit is provided on one side of the alarm (9).

6. The quick positioning mechanism for plastic mold production and processing as described in claim 5, characterized in that: The mold closing guide plate (10) is fixedly installed at both ends of the lower mold base (1) by bolts. The top of the mold closing guide plate (10) is provided with a 10-degree tilt angle, which is located above the lower mold base (1). A pressure detection plate (13) connected to the micro-control unit signal is fixedly installed inside the mold closing guide plate (10).

7. The quick positioning mechanism for plastic mold production and processing as described in claim 6, characterized in that: The pressure detection plate (13) includes a pressure sensor (131) connected to the microcontroller unit and an extrusion plate (132) that bears pressure. The pressure sensor (131) is fixedly installed inside the mold closing guide plate (10), and the extrusion plate (132) located inside the mold closing guide plate (10) is fixedly installed at the detection end of the pressure sensor (131).

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