High-precision electronic control horizontal injection molding machine mold closing device
By adopting a high-precision electronically controlled mold clamping device in a horizontal injection molding machine, the stepper motor and screw are used to achieve precise movement of the moving template, and combined with the shock absorption mechanism, the problem of precise control of the traditional injection mold clamping system is solved, and the accuracy of mold fit and mold clamping effect are improved.
Patent Information
- Application Number
- CN202421192638.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The mold clamping system of traditional horizontal injection molding machines is driven by oil cylinders, and the propulsion position cannot be accurately controlled, resulting in insufficient fit or excessive extrusion of the mold.
A high-precision electronically controlled horizontal injection molding machine mold clamping device is adopted, including a stepper motor, a screw, a slider and a shock absorbing mechanism. The stepper motor drives the screw to make the moving template move accurately, and a shock absorbing mechanism is set on the moving template to reduce impact.
The high-precision fit of the mold is achieved, which avoids excessive extrusion and reduces damage between the templates through the shock absorbing mechanism, improving the mold clamping effect.
Smart Images
Figure CN222590604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding machines, in particular to a high-precision electric-controlled horizontal injection molding machine mold clamping device. Background Art
[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. After the mold is closed, sufficient clamping force is supplied to the mold to resist the cavity pressure generated by the molten plastic entering the mold cavity, to prevent the mold from opening and causing the product to be in a bad state. The clamping system of the traditional horizontal injection molding machine is driven by an oil cylinder, and the position of the push cannot be accurately controlled, resulting in insufficient mold fit or excessive extrusion. Utility Model Content
[0003] The utility model aims to solve the problems in the prior art and proposes a high-precision electric-controlled horizontal injection molding machine mold clamping device.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A high-precision electric-controlled horizontal injection molding machine clamping device comprises a frame, a fixed platen and a movable platen, two polished rods are respectively connected between the frame, the fixed platen and the movable platen on both sides, the frame is connected with a driving mechanism; the driving mechanism comprises a stepping motor and a screw rod; the screw rod passes through the frame, the fixed platen and the movable platen in sequence; and a slider is connected to the screw rod; the slider is fixedly connected to the movable platen; a shock absorbing mechanism is connected to the movable platen; the shock absorbing mechanism comprises a positioning rod; a shock absorbing spring is connected to the outer side of the positioning rod; and a positioning groove matching the positioning rod is provided on the fixed platen.
[0006] Preferably, two screw rods are provided; and the two screw rods are respectively arranged between two polished rods on the same side.
[0007] Preferably, both ends of the screw rod are rotatably connected to the fixed mold plate and the frame respectively; and the movable mold plate moves on the screw rod via a slider.
[0008] Preferably, a transmission mechanism is connected between the stepper motor and the lead screw; the transmission mechanism includes a gear disc 1 and two gear discs 2; the gear disc 1 is connected to the output end of the stepper motor; the two gear discs 2 are respectively fixedly connected to one end of the two lead screws close to the stepper motor.
[0009] The outer side of the first toothed disc is meshed with the two second toothed discs; the two second toothed discs are symmetrically arranged on both sides of the lower end of the first toothed disc; and the size of the first toothed disc is larger than that of the second toothed disc.
[0010] Preferably, a shock absorbing groove is provided at the open end of the positioning groove; and the depth of the shock absorbing groove is greater than the shortest length of the shock absorbing spring when it is compressed.
[0011] Compared with the prior art, the utility model provides a high-precision electric-controlled horizontal injection molding machine mold clamping device, which has the following beneficial effects:
[0012] The high-precision electric-controlled horizontal injection molding machine mold clamping device has a holding torque through the stepper motor itself. The holding torque of the motor can be used to lock the motor when the power is on, so as to keep the transmission screw from rotating. Combined with the self-locking ability of the transmission screw itself, it can be ensured that the movable template will not be displaced by itself, and the mold can be fully fitted without excessive extrusion. A shock-absorbing mechanism is provided on the movable template to reduce shock when the movable template is clamped with the fixed template, which can reduce the impact between the movable template and the fixed template, reduce the damage between the templates, and thus increase the clamping effect between the templates.
[0013] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 It is a structural schematic diagram of the fixed template and the movable template in the utility model;
[0016] Figure 3 It is a side structural schematic diagram of the movable template in the utility model;
[0017] Figure 4 It is a structural schematic diagram of the transmission mechanism in the utility model.
[0018] In the figure: 10 frame, 11 fixed platen, 12 movable platen, 13 polished rod, 21 stepping motor, 22 lead screw, 23 slider, 30 shock absorbing mechanism, 31 positioning rod, 32 shock absorbing spring, 33 positioning slot, 34 shock absorbing slot, 40 transmission mechanism, 41 gear disc one, 42 gear disc two. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0021] Reference Figure 1-4 A high-precision electric-controlled horizontal injection molding machine clamping device comprises a frame 10, a fixed platen 11 and a movable platen 12, two polished rods 13 are respectively connected between the two sides of the frame 10, the fixed platen 11 and the movable platen 12, and a driving mechanism is connected to the frame 10; the driving mechanism comprises a stepping motor 21 and a screw rod 22; the screw rod 22 passes through the frame 10, the fixed platen 11 and the movable platen 12 in sequence; and a slider 23 is connected to the screw rod 22; the slider 23 is fixedly connected to the movable platen 12; two screw rods 22 are provided; and the two screw rods 22 are respectively arranged between the two polished rods 13 on the same side; the two ends of the screw rod 22 are respectively connected to the fixed platen 11 and the frame 10 for rotation; the movable platen 12 moves on the screw rod 22 through the slider 23, and the screw rod 22 is driven to rotate by the stepping motor 21, so that the movable platen 12 moves.
[0022] The movable template 12 is connected with a shock absorbing mechanism 30; the shock absorbing mechanism 30 includes a positioning rod 31; a shock absorbing spring 32 is connected to the outer side of the positioning rod 31; a positioning groove 33 matching the positioning rod 31 is provided on the fixed template 11; a shock absorbing groove 34 is provided at the open end of the positioning groove 33; and the depth of the shock absorbing groove 34 is greater than the shortest length of the shock absorbing spring 32 when compressed, so that the movable template 12 and the fixed template 11 are damped when the mold is closed, which can reduce the impact between the movable template 12 and the fixed template 11, reduce the damage between the templates, and make the movable template 12 and the fixed template 11 close together, thereby increasing the mold closing effect between the templates.
[0023] A transmission mechanism 40 is connected between the stepping motor 21 and the lead screw 22; the transmission mechanism 40 includes a gear disc 1 41 and two gear discs 2 42; the gear disc 1 41 is connected to the output end of the stepping motor 21; the two gear discs 2 42 are respectively fixedly connected to one end of the two lead screws 22 close to the stepping motor 21, and the outer side of the gear disc 1 41 is meshed with the two gear discs 2 42; the two gear discs 2 42 are symmetrically arranged on both sides of the lower end of the gear disc 1 41; and the size of the gear disc 1 41 is larger than that of the gear disc 2 42, and the large-sized gear disc 1 41 drives the two gear discs 2 42 to rotate synchronously at the same time, so that the two lead screws 22 rotate synchronously, ensuring that the force on both ends of the moving template 12 is uniform.
[0024] The biggest difference between the stepper motor 21 and other control motors is that it receives digital control signals (electric pulse signals) and converts them into corresponding angular displacements or linear displacements. It itself is an actuator that completes digital mode conversion; and its angular displacement is strictly proportional to the number of input pulses and is synchronized with the pulses in time; therefore, as long as the number of pulses, frequency and phase sequence of the motor windings are controlled, the required angle of rotation, speed and direction can be obtained; the utility model adopts a stepper motor, and the position of the moving template 12 can be accurately controlled to ensure that the mold fits fully and does not over-extrusion.
[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-precision electronically controlled horizontal injection molding machine mold clamping device, comprising a frame (10), a fixed platen (11) and a movable platen (12), wherein two polished rods (13) are respectively connected between the two sides of the frame (10), the fixed platen (11) and the movable platen (12), characterized in that: The frame (10) is connected with a driving mechanism; the driving mechanism comprises a stepping motor (21) and a screw rod (22); the screw rod (22) passes through the frame (10), the fixed plate (11) and the movable plate (12) in sequence; and the screw rod (22) is connected with a slider (23); the slider (23) is fixedly connected to the movable plate (12); the movable plate (12) is connected with a shock absorbing mechanism (30); the shock absorbing mechanism (30) comprises a positioning rod (31); a shock absorbing spring (32) is connected to the outer side of the positioning rod (31); and a positioning groove (33) matching the positioning rod (31) is provided on the fixed plate (11).
2. A high-precision electronically controlled horizontal injection molding machine mold clamping device according to claim 1, characterized in that: Two screw rods (22) are provided, and the two screw rods (22) are respectively arranged between two polished rods (13) on the same side.
3. The high-precision electronically controlled horizontal injection molding machine mold clamping device according to claim 1, characterized in that: The two ends of the screw rod (22) are rotatably connected to the fixed die plate (11) and the frame (10) respectively; the movable die plate (12) moves on the screw rod (22) via a slider (23).
4. The high-precision electronically controlled horizontal injection molding machine mold clamping device according to claim 1, characterized in that: A transmission mechanism (40) is connected between the stepping motor (21) and the lead screw (22); the transmission mechanism (40) comprises a first gear disc (41) and two second gear discs (42); the first gear disc (41) is connected to the output end of the stepping motor (21); the two second gear discs (42) are respectively fixedly connected to one end of the two lead screws (22) close to the stepping motor (21).
5. A high-precision electronically controlled horizontal injection molding machine mold clamping device according to claim 4, characterized in that: The outer side of the toothed disc 1 (41) is meshedly connected with the two toothed discs 2 (42); the two toothed discs 2 (42) are symmetrically arranged on both sides of the lower end of the toothed disc 1 (41); and the size of the toothed disc 1 (41) is larger than the size of the toothed disc 2 (42).
6. The high-precision electronically controlled horizontal injection molding machine mold clamping device according to claim 1, characterized in that: A shock absorbing groove (34) is provided at the open end of the positioning groove (33); and the depth of the shock absorbing groove (34) is greater than the shortest length of the shock absorbing spring (32) when it is compressed.