Three-servo double-screw high-precision hot plate plastic welding machine

Abstract

The utility model discloses a three servo double screw rod high accuracy hot plate plastic welding machine, including frame, electric cabinet, operation display screen, upper mould frame, upper mould servo drive mechanism, lower mould frame, lower mould servo drive mechanism, hot mould frame and hot mould servo drive mechanism, the upper mould frame is located in the inside upper portion of frame, and the lower mould frame is located in the inside lower portion of frame, and the hot mould frame sets up in the middle part of frame, and three drive mechanism structures are exactly the same, and the upper mould servo drive mechanism includes servo motor, belt pulley, a plurality of tension pulleys, a pair of driven wheels, a pair of screw rods and a pair of screw rod bearings, and the belt pulley transmission is connected on the output shaft of servo motor, tension pulley, driven wheel, and the screw rod transmission is arranged on the driven wheel, and the screw rod bearing is sleeved on the screw rod, and the upper and lower mould frame and hot mould frame all drive through double screw rod and select servo motor, and the whole stability is good, and it is difficult to shift, and the motion precision is high, and it is not necessary to repeat correction, and the operation is convenient and simple, and the yield is high, and effectively satisfy the use requirement.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment, and specifically relates to a high-precision hot plate plastic welding machine with three servo double screws, which has good stability, high precision, high yield, and simple and convenient operation. Background Technology

[0002] Some injection molded products are composed of multiple plastic sheets. After the plastic sheets are produced, they need to be welded together using a welding machine. The plastic sheets are then placed in upper and lower mold frames for fixation, with a hot mold frame in the middle. During operation, the upper and lower mold frames and the hot mold frame all need to move. Currently, the movement of the upper and lower mold frames and the hot mold frame is generally achieved by a cylinder or a motor-driven single lead screw. Both of these drives can meet certain usage requirements, but they also have significant drawbacks. When the cylinder pushes directly, the air pressure is not stable enough, resulting in poor movement accuracy. The lead screw driven by the motor is located in the middle, making it prone to deviation during the drive process, resulting in poor movement accuracy. The sides will vibrate and tilt when subjected to impact forces, requiring repeated corrections. This makes the operation cumbersome and inconvenient, and the yield rate of the welded products is low, failing to effectively meet usage requirements.

[0003] The technical problem to be solved by this utility model is to provide a high-precision hot plate plastic welding machine with three servo double screws, which features double screw drive at both ends, high motion accuracy, good stability and low deviation, no need for repeated calibration, convenient and simple operation, high yield, and effectively meets the requirements of use. Utility Model Content

[0004] To address the problems of unstable air pressure, poor motion accuracy, and the fact that the motor-driven lead screw is located in the middle and prone to deviation during operation, causing vibration and tilting when subjected to impact forces, requiring repeated corrections, cumbersome operation, low yield of welded products, and inability to effectively meet usage requirements in the prior art, this utility model adopts the following technical solution: This utility model provides a high-precision hot plate plastic welding machine with three servo double screws, including a frame, an electrical control box, an operation display screen, an upper mold frame, an upper mold servo drive mechanism, a lower mold frame, a lower mold servo drive mechanism, a hot mold frame, and a hot mold servo drive mechanism. The electrical control box is located at the bottom of the frame, and the operation display screen is located at the front end of the frame. The upper mold frame is located inside the upper part of the frame, and the upper mold servo drive mechanism is located at the top of the frame and drives the upper mold frame to move vertically. The lower mold frame is located inside the lower part of the frame, and the lower mold servo drive mechanism is located at the bottom of the frame and drives the lower mold frame to move vertically. The hot mold frame is slidably mounted on a pair of guide rails in the middle of the frame via a pair of sliders. The pair of guide rails are symmetrically arranged on the machine. On the central support plate inside the frame, the hot mold servo drive mechanism is located at the rear of the frame and drives the hot mold frame to move horizontally. The upper mold servo drive mechanism, the lower mold servo drive mechanism, and the hot mold servo drive mechanism have the same structure. The upper mold servo drive mechanism includes a servo motor, pulleys, several tensioning pulleys, a pair of driven pulleys, a pair of lead screws, and a pair of lead screw bearings. The pair of driven pulleys are located at both ends of the top of the frame. The several tensioning pulleys are distributed in the middle of the top of the frame. The pulleys are driven and connected to the output shaft of the servo motor, the tensioning pulleys, and the driven pulleys. The pair of lead screws are driven and connected to the pair of driven pulleys. The pair of lead screw bearings are sleeved on the pair of lead screws and fixedly connected to the upper mold frame.

[0005] Preferably, guide posts are provided at all four corners of the upper mold frame and the lower mold frame.

[0006] Preferably, the upper mold servo drive mechanism, the lower mold servo drive mechanism, and the hot mold servo drive mechanism are all provided with protective covers.

[0007] Preferably, the frame is provided with casters at all four corners of its bottom.

[0008] Preferably, the front end face of the frame is provided with a number of function buttons.

[0009] Preferably, the frame is provided with double doors on both sides and the rear side for easy maintenance.

[0010] The advantages of this utility model are as follows: the upper and lower mold frames and the hot mold frame are all driven by double lead screws and servo motors, which has good overall stability, is not easy to deviate, has high motion accuracy, does not require repeated calibration, is convenient and simple to operate, has a high yield rate, and effectively meets the usage requirements. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0012] Figure 2 This is a partially enlarged schematic diagram of the upper mold servo drive mechanism in this utility model.

[0013] Figure 3 This is a schematic diagram of the rear side view of this utility model. Detailed Implementation

[0014] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Please see Figure 1 A high-precision hot plate plastic welding machine with three servo twin-screw screws includes a frame 1, an electrical control box 2, an operation display screen 3, an upper mold frame 4, an upper mold servo drive mechanism 5, a lower mold frame 6, a lower mold servo drive mechanism 7, a hot mold frame 8, and a hot mold servo drive mechanism 9. The electrical control box 2 is located at the bottom of the frame 1 and controls the entire equipment circuitry. The operation display screen 3 is located at the front end of the frame 1 and allows for parameter setting and modification. The upper mold frame is located inside the upper part of the frame, and the upper mold servo drive mechanism is located at the top of the frame and drives the upper mold frame vertically. The upper mold servo drive mechanism moves upwards. The lower mold frame is located inside the lower part of the machine frame. The lower mold servo drive mechanism is located at the bottom of the machine frame and drives the lower mold frame to move vertically. The hot mold frame is slidably mounted on a pair of guide rails in the middle of the machine frame via a pair of sliders. The pair of guide rails are symmetrically arranged on the central support plate inside the machine frame. The hot mold servo drive mechanism is located on the rear side of the machine frame and drives the hot mold frame to move horizontally. The upper mold servo drive mechanism, lower mold servo drive mechanism, and hot mold servo drive mechanism have completely identical structures. Therefore, this application will only describe the upper mold servo drive mechanism in detail. Figure 2 As shown, the upper mold servo drive mechanism 5 includes a servo motor 51, a pulley 52, several tensioning pulleys 53, a pair of driven pulleys 54, a pair of lead screws 55, and a pair of lead screw bearings 56. The pair of driven pulleys are located at both ends of the top of the frame, and the several tensioning pulleys are distributed in the middle of the top of the frame. The pulleys are connected to the output shaft of the servo motor, the tensioning pulleys, and the driven pulleys. The pair of lead screws are correspondingly driven through the pair of driven pulleys, and the pair of lead screw bearings are correspondingly sleeved on the pair of lead screws and fixedly connected to the upper mold frame. In this way, the servo motor drives the double lead screws to move the upper mold frame in the vertical direction. It is not easy to deviate during movement. Even if the sides are impacted by external forces, there is no need for repeated correction. The movement accuracy is higher, the quality of the welded products is better, and the yield rate is higher.

[0016] like Figure 3 As shown, guide posts 13 are provided at the four corners of the upper mold frame 4 and the lower mold frame 6. The guide posts guide the movement to ensure a smoother and more precise process.

[0017] The upper mold servo drive mechanism, the lower mold servo drive mechanism, and the hot mold servo drive mechanism are all equipped with protective covers 14, which makes the operation and use of the equipment safer.

[0018] Furthermore, the frame is equipped with casters 15 at each of the four corners at the bottom, allowing the equipment to be moved to different locations for use, making operation more convenient.

[0019] Furthermore, the front face of the frame is provided with several function buttons 16. By setting function buttons such as start, emergency stop, etc., the operation is more convenient, simple and safe.

[0020] Meanwhile, the frame is equipped with double doors 17 on both sides and the rear side for easy maintenance. The double doors can be opened for maintenance, which is convenient and simple.

[0021] The advantages of this utility model are as follows: the upper and lower mold frames and the hot mold frame are all driven by double lead screws and servo motors, which has good overall stability, is not easy to deviate, has high motion accuracy, does not require repeated calibration, is convenient and simple to operate, has a high yield rate, and effectively meets the usage requirements.

[0022] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A high-precision hot plate plastic welding machine with three servo twin lead screws, characterized in that: The system includes a frame (1), an electrical control box (2), an operation display screen (3), an upper mold frame (4), an upper mold servo drive mechanism (5), a lower mold frame (6), a lower mold servo drive mechanism (7), a hot mold frame (8), and a hot mold servo drive mechanism (9). The electrical control box (2) is located at the bottom of the frame (1), the operation display screen (3) is located at the front end of the frame (1), the upper mold frame (4) is located inside the upper part of the frame (1), and the upper mold servo drive mechanism (5) is located on the upper part of the frame (1). The upper mold frame (4) is located at the top and drives the lower mold frame (6) to move vertically. The lower mold frame (6) is located inside the lower part of the frame (1). The lower mold servo drive mechanism (7) is located at the bottom of the frame (1) and drives the lower mold frame (6) to move vertically. The hot mold frame (8) is slidably mounted on a pair of guide rails (11) in the middle of the frame (1) via a pair of sliders (81). The pair of guide rails (11) are symmetrically mounted on the middle support plate (12) inside the frame (1). The hot mold servo drive mechanism (9) is located on the rear side of the frame (1) and drives the hot mold frame (8) to move horizontally. The upper mold servo drive mechanism (5), the lower mold servo drive mechanism (7), and the hot mold servo drive mechanism (9) have the same structure. The upper mold servo drive mechanism (5) includes a servo motor (51), a pulley (52), several tensioning wheels (53), a pair of driven wheels (54), a pair of lead screws (55), and a pair of lead screw bearings (56). The driven wheels (54) are located at both ends of the top of the frame (1), and the tensioning wheels (53) are distributed in the middle of the top of the frame (1). The pulley (52) is connected to the output shaft of the servo motor (51), the tensioning wheel (53), and the driven wheel (54). The pair of lead screws (55) are correspondingly driven through the pair of driven wheels (54), and the pair of lead screw bearings (56) are correspondingly sleeved on the pair of lead screws (55) and fixedly connected to the upper mold frame (4).

2. The high-precision hot plate plastic welding machine with three servo twin lead screws according to claim 1, characterized in that: Guide posts (13) are provided at the four corners of the upper mold frame (4) and the lower mold frame (6).

3. The high-precision hot plate plastic welding machine with three servo twin lead screws according to claim 1, characterized in that: The upper mold servo drive mechanism (5), the lower mold servo drive mechanism (7), and the hot mold servo drive mechanism (9) are all provided with protective covers (14).

4. The high-precision hot plate plastic welding machine with three servo twin lead screws according to claim 1, characterized in that: The frame (1) has four casters (15) on its bottom corners.

5. The high-precision hot plate plastic welding machine with three servo twin lead screws according to claim 1, characterized in that: The front end face of the frame (1) is provided with several function buttons (16).

6. The high-precision hot plate plastic welding machine with three servo twin lead screws according to claim 1, characterized in that: The frame (1) is provided with double doors (17) on both sides and the rear side for easy maintenance.

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