Novel two-trigger locking mechanism for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a novel two-trigger locking mechanism for an injection molding machine, which comprises a main oil cylinder, a clasping mechanism is arranged on one side of the main oil cylinder, a pull rod is arranged on one side, far away from the main oil cylinder, of the clasping mechanism, and the clasping mechanism comprises a bottom plate, an auxiliary oil cylinder, a sliding plate, a band-type brake, a spring seat and a spring. The sliding plate is arranged on one side of the bottom plate, spring seats are arranged on the two sides of the top of the sliding plate, grooves are formed in the opposite sides of the two spring seats, the auxiliary oil cylinder is installed on the outer wall of one band-type brake, arc-shaped grooves are formed in the opposite sides of the two band-type brakes, first continuous trapezoidal teeth are arranged on the pull rod, and second continuous trapezoidal teeth are arranged on the arc-shaped grooves. The utility model has the advantages of simple structure, low use cost, more convenience and quickness in die replacement, long service life and high safety, can automatically find the band-type brake closing position only by adjusting the high-pressure position, and improves the overall working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a novel double-trigger locking mechanism for injection molding machines. Background Art

[0002] An injection molding machine heats plastic raw material to a molten state, injects it into a mold, and solidifies it during cooling. It is widely used in the production of plastic products such as household plastics, electronic components, and automotive parts. The operating principle of an injection molding machine consists of four basic steps: plasticization, injection, pressure holding, and cooling. The "trigger" in an injection molding machine generally refers to the triggering device used to control different steps or actions during the machine's operation.

[0003] The biggest challenge in the development of two-trigger machines is alignment during the machine adjustment process. Changing the mold during use is complex, requires high technical skills, and results in low efficiency. No solution has yet been proposed for these technical issues. Utility Model Content

[0004] In response to the problems in the related technology, the utility model proposes a new two-trigger locking mechanism for injection molding machines to overcome the above-mentioned technical problems existing in the existing related technology. The purpose of the utility model is to make mold replacement more convenient and quick. It only needs to adjust the high-pressure position to automatically find the brake closing position. It has a long service life, high safety, and improves overall work efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of double-trigger locking mechanism for an injection molding machine, comprising a main oil cylinder, a clamping mechanism is provided on one side of the main oil cylinder, a pull rod is provided on the side of the clamping mechanism away from the main oil cylinder, the clamping mechanism comprises a base plate, an auxiliary oil cylinder, a slide plate, a brake, a spring seat and a spring, the slide plate is provided on one side of the base plate, spring seats are provided on both sides of the top of the slide plate, grooves are provided on opposite sides of the two spring seats, two brakes are provided, and are symmetrically arranged, one end of the spring is fixedly connected to the inner wall of the groove, and the other end of the spring is fixedly connected to the bottom of one side of the brake, the auxiliary oil cylinder is installed on the outer wall of one of the brakes, and arc grooves are provided on opposite sides of the two brakes, continuous trapezoidal teeth one are provided on the pull rod, and continuous trapezoidal teeth two are provided on the arc groove.

[0006] Preferably, the continuous trapezoidal tooth 1 and the continuous trapezoidal tooth 2 are meshed with each other.

[0007] Preferably, the spring seat and the slide plate are fixedly connected by bolts, and the base plate and the slide plate are fixedly connected.

[0008] Preferably, a sensor is also provided on the brake.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] This utility model provides a novel two-trigger locking mechanism for injection molding machines. By providing a clamping mechanism, the brake moves linearly along the axial direction of the drawbar under the pressure of the master cylinder. When the continuous trapezoidal teeth 1 and 2 align, the brakes on both sides, under the action of springs, clamp the drawbar inward, completing the locking. When the mechanism is unlocked, the master cylinder pressure is released, and the push rod on the auxiliary cylinder pushes out to resist the spring force, separating the brakes on both sides and completing the unlocking. The locking and unlocking process of the mechanism is automatically aligned, eliminating the need for manual adjustment. The self-positioning brake solves the problems of complex data and mold adjustment and high technical requirements, improving efficiency and making mold replacement more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of the clamping mechanism of the utility model;

[0012] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the brake and the pull rod of the utility model.

[0014] In the accompanying drawings: 1. Master cylinder; 2. Clamping mechanism; 201. Base plate; 202. Auxiliary cylinder; 203. Slide plate; 204. Holding brake; 205. Spring seat; 206. Spring; 207. Groove; 208. Arc groove; 3. Pull rod. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0016] Example 1

[0017] See also Figure 1-3The utility model proposes a technical solution for a novel two-trigger locking mechanism for an injection molding machine: a novel two-trigger locking mechanism for an injection molding machine, comprising a main oil cylinder 1, a clamping mechanism 2 is provided on one side of the main oil cylinder 1, a pull rod 3 is provided on the side of the clamping mechanism 2 away from the main oil cylinder 1, the clamping mechanism 2 comprises a bottom plate 201, an auxiliary oil cylinder 202, a slide plate 203, a brake 204, a spring seat 205 and a spring 206, the slide plate 203 is provided on one side of the bottom plate 201, and springs are provided on both sides of the top of the slide plate 203. Spring seat 205, a groove 207 is provided on the opposite side of the two spring seats 205, two brakes 204 are provided, and are symmetrically arranged, one end of the spring 206 is fixedly connected to the inner wall of the groove 207, and the other end of the spring 206 is fixedly connected to the bottom of one side of the brake 204, the auxiliary oil cylinder 202 is installed on the outer wall of one brake 204, and an arc groove 208 is provided on the opposite side of the two brakes 204, a continuous trapezoidal tooth 1 is provided on the pull rod 3, and a continuous trapezoidal tooth 2 is provided on the arc groove 208.

[0018] In this embodiment, the brake 204 is connected and fixed to the master cylinder 1 via the base plate 201 , and the slide plate 203 supports and constrains the brake 204 so that it slides closely against the slide plate 203 .

[0019] See also Figure 3 As shown, further, the continuous trapezoidal tooth 1 and the continuous trapezoidal tooth 2 are meshed with each other.

[0020] See also Figure 1 As shown, further, the spring seat 205 and the slide plate 203 are fixedly connected by bolts, and the base plate 201 and the slide plate 203 are fixedly connected.

[0021] Furthermore, a sensor is provided on the brake 204 .

[0022] In this embodiment, a sensor (not shown in the figure) is provided at each brake 204 station to improve the safety and prevent accidents.

[0023] The working principle of this utility model:

[0024] When locking, the brake 204 moves linearly along the axial direction of the pull rod 3 under the drive of the main oil cylinder 1 increase in pressure. When the continuous trapezoidal tooth 1 and the continuous trapezoidal tooth 2 are aligned, the brakes 204 on both sides fasten the pull rod 3 inward under the action of the spring 206 to complete the locking; when the mechanism is unlocked, the main oil cylinder 1 increases pressure and releases pressure, and the push rod on the auxiliary oil cylinder 202 pushes out to resist the elastic force of the spring 206 to separate the brakes 204 on both sides, completing the unlocking. The locking and unlocking processes of the mechanism are all automatically aligned, and no manual adjustment is required. The self-positioning brake solves the problems of adjusting data, complex mold adjustment, and high technical requirements, thereby improving efficiency.

[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of two-trigger locking mechanism for injection molding machine, characterized in that: The invention comprises a main oil cylinder (1), a clamping mechanism (2) is provided on one side of the main oil cylinder (1), a pull rod (3) is provided on the side of the clamping mechanism (2) away from the main oil cylinder (1), the clamping mechanism (2) comprises a bottom plate (201), an auxiliary oil cylinder (202), a slide plate (203), a brake (204), a spring seat (205) and a spring (206), the slide plate (203) is provided on one side of the bottom plate (201), spring seats (205) are provided on both sides of the top of the slide plate (203), and the two spring seats (205) are provided on opposite sides. A groove (207) is provided, and two brakes (204) are provided and symmetrically arranged. One end of the spring (206) is fixedly connected to the inner wall of the groove (207), and the other end of the spring (206) is fixedly connected to the bottom of one side of the brake (204). The auxiliary oil cylinder (202) is installed on the outer wall of one of the brakes (204). An arc groove (208) is provided on the opposite sides of the two brakes (204). A continuous trapezoidal tooth 1 is provided on the pull rod (3), and a continuous trapezoidal tooth 2 is provided on the arc groove (208).

2. The novel double-trigger locking mechanism for an injection molding machine according to claim 1, characterized in that: The continuous trapezoidal tooth 1 and the continuous trapezoidal tooth 2 are meshed with each other.

3. The novel double-trigger locking mechanism for an injection molding machine according to claim 1, characterized in that: The spring seat (205) and the slide plate (203) are fixedly connected by bolts, and the base plate (201) and the slide plate (203) are fixedly connected.

4. The novel double-trigger locking mechanism for an injection molding machine according to claim 1, characterized in that: A sensor is also provided on the holding brake (204).

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