A pressure forming device for bushing pretreatment

Abstract

The application relates to the technical field of injection molding devices, in particular to a pressure forming device for bushing pretreatment, which is characterized in that the bottom of an injection cylinder is fixedly connected with an upper spraying disc, the inside of the injection cylinder is fixedly connected with an upper suction disc, the bottom of the upper suction disc is fixedly connected with a connecting bottom ring, the top of the upper spraying disc is fixedly connected with a connecting top ring, the bottom of the connecting bottom ring and the top of the connecting top ring are both rotationally connected with rotating inner rings, the two rotating inner rings are rotationally connected with each other, the outside of the rotating inner rings is fixedly connected with four extrusion inclined plates, the inside of the rotating inner rings is fixedly connected with inner push columns at equal intervals, the outside of the injection cylinder is connected with an injection port, and the top of the injection cylinder is fixedly connected with a rotating motor. The unique structural design can uniformly extrude and discharge the plastic, the forming temperature and pressure distribution are accurately controlled, the defects of uneven internal structure, cracks or deformation of the bushing are effectively avoided, and the yield and reliability of the product are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding devices, and particularly relates to a pressure forming device for bushing pretreatment. BACKGROUND

[0002] Plastic bushings are widely used in the fields of mechanical manufacturing, automobile industry and electronic equipment, etc., as shock-absorbing, sealing or supporting elements, and the performance thereof directly affects the reliability and service life of the overall equipment.

[0003] In the prior art, manual pressing or simple hydraulic equipment is often used for bushing pretreatment, and there are problems such as complicated operation, low forming precision and low efficiency, for example, the traditional pressure forming device is difficult to accurately control the pressure distribution and forming temperature, which leads to uneven internal structure of the bushing, and cracks or deformation defects are prone to occur, thereby affecting the product yield; therefore, the present application provides a pressure forming device for bushing pretreatment. SUMMARY

[0004] The present application aims to provide a pressure forming device for bushing pretreatment to solve the problems raised in the background.

[0005] The technical scheme of the present application is: a pressure forming device for bushing pretreatment, comprising an injection cylinder, the bottom of the injection cylinder is fixedly connected with an upper spraying disc, the inside of the injection cylinder is fixedly connected with an upper suction disc, the bottom of the upper suction disc is fixedly connected with a connecting bottom ring, the top of the upper spraying disc is fixedly connected with a connecting top ring, the bottom of the connecting bottom ring and the top of the connecting top ring are both rotationally connected with a rotating inner ring, the two rotating inner rings are rotationally connected with each other, the outside of the rotating inner ring is fixedly connected with four extrusion inclined plates, the inside of the rotating inner ring is fixedly connected with inner push columns at equal intervals, the outside of the injection cylinder is connected with an injection port, the top of the injection cylinder is fixedly connected with a rotating motor, the output end of the rotating motor is fixedly connected with a motor rotating roller, the inside of the injection cylinder is fixedly connected with a fixed inner cylinder, the inside of the fixed inner cylinder is fixedly connected with an upper groove ring, the inside of the fixed inner cylinder is fixedly connected with a lower groove ring, the outside of the motor rotating roller is slidably connected with a connecting sliding plate, one side of the connecting sliding plate is fixedly connected with a guide column, the bottom of the connecting sliding plate is fixedly connected with a pushing piece, the guide column is slidably connected between the upper groove ring and the lower groove ring, the bottom of the upper groove ring is provided with four arc-shaped grooves, the top of the lower groove ring is provided with a clamping groove matched with the bottom of the upper groove ring; in use: plastic is injected through the injection port, the motor rotating roller is controlled to rotate by the rotating motor, the guide column is controlled to move between the upper groove ring and the lower groove ring, so as to control the height of the pushing piece, initially, the extrusion inclined plates on the outside of the two rotating inner rings are matched two by two, and the rear extrusion inclined plate covers the discharge port of the upper spraying disc at the bottom, and the front extrusion inclined plate covers the discharge port at the top, then the pushing piece pushes the inner push column at the top to move, drives the front extrusion inclined plate to rotate, so that the discharge port at the top is opened, plastic is sucked in, when the front extrusion inclined plate contacts the other extrusion inclined plate, the pushing piece moves downward, pushes the rear extrusion inclined plate to move, extrudes the gap between the two extrusion inclined plates, closes the discharge port of the upper suction disc, and makes plastic extrude through the discharge port of the upper spraying disc, the distance between the extrusion inclined plates on the outside of the two rotating inner rings is repeatedly controlled, and uniform extrusion and discharging are carried out.

[0006] Preferably, the outer movable sleeve of the injection molding cylinder is provided with a guide outer cylinder, the inner side of the guide outer cylinder is fixedly connected with an outer mold cylinder, the inner side of the outer mold cylinder is fixedly connected with an inner mold column, the outer wall of the inner mold column is movably connected with an inner mold bottom ring, the bottom of the inner mold bottom ring is fixedly connected with an inner sliding shaft, the inner sliding shaft is slidably connected with the bottom of the outer mold cylinder, a compression spring is installed between the inner mold bottom ring and the inner wall of the bottom of the outer mold cylinder, the outer side of the inner sliding shaft is movably connected with the compression spring, the bottom of the inner sliding shaft is fixedly connected with a reset push disc, the reset push disc is located at the bottom of the outer mold cylinder, and a push cylinder is installed at the bottom of the outer mold cylinder.

[0007] The present application improves the pressure forming device for bushing pretreatment, which has the following improvements and advantages compared with the prior art.

[0008] Firstly, the pressure forming device for bushing pretreatment is used to inject plastic through an injection port, control the rotation of the motor rotating roller through a rotating motor, control the movement of the guide column between the upper groove ring and the lower groove ring, control the height of the push piece, and the two extrusion inclined plates on the outer side of the two rotating inner rings are initially attached to each other, and the rear extrusion inclined plate covers the discharge port of the bottom upper spray disc, and the front extrusion inclined plate covers the discharge port at the top, then the push piece moves the inner push column at the top to drive the front extrusion inclined plate to rotate, so that the discharge port at the top is opened to suck in plastic, when the front extrusion inclined plate contacts the other extrusion inclined plate, the push piece moves downward to move the rear extrusion inclined plate, extrudes the gap between the two extrusion inclined plates, closes the discharge port of the upper suction disc, and makes the plastic extrude through the discharge port of the upper spray disc, and the distance between the two extrusion inclined plates on the outer side of the two rotating inner rings is repeatedly controlled to uniformly extrude the material;

[0009] Secondly, the pressure forming device for bushing pretreatment is used to uniformly extrude the material in the inner side of the injection molding cylinder, extrude the inner mold bottom ring downward, make the plastic gather between the outer mold cylinder and the inner mold column, make the inner mold bottom ring move downward, after cooling to a certain temperature, make the guide outer cylinder separate from the outer side of the injection molding cylinder, move to the top of the push cylinder, push the reset push disc upward to reset, and push out the molded object.

[0010] Summary: The pressure forming device for bushing pretreatment has a unique structure design, which can uniformly extrude the plastic, and can effectively avoid the defects such as uneven internal structure, cracks or deformation of the bushing by accurately controlling the molding temperature and pressure distribution, thereby improving the yield and reliability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0011] The application will be further explained in connection with the accompanying drawings and embodiments:

[0012] Figure 1 is a schematic diagram of the three-dimensional structure of the application.

[0013] Figure 2 is a schematic diagram of the structure of the rotary motor of the application.

[0014] Figure 3 is a schematic diagram of the structure of the injection molding cylinder of the application.

[0015] Figure 4 is a schematic diagram of the structure of the motor roller of the application.

[0016] Figure 5 is a schematic diagram of the structure of the extrusion inclined plate of the application.

[0017] Figure 6 is a schematic diagram of the structure of the guide outer cylinder of the application.

[0018] Figure 7 is a schematic diagram of the structure of the inner mold bottom ring of the application.

[0019] Explanation of reference signs:

[0020] 1, injection molding cylinder; 2, guide outer cylinder; 3, rotary motor; 4, injection molding port; 5, push cylinder; 6, fixed inner cylinder; 7, motor roller; 8, connecting sliding plate; 9, guide column; 10, push plate; 11, upper groove ring; 12, lower groove ring; 13, upper suction disc; 14, upper spray disc; 15, connecting top ring; 16, connecting bottom ring; 17, rotating inner ring; 18, inner push column; 19, extrusion inclined plate; 20, outer mold cylinder; 21, compression spring; 22, inner mold column; 23, inner mold bottom ring; 24, inner sliding shaft; 25, reset push disc. DETAILED DESCRIPTION

[0021] The application will be further explained in connection with the accompanying drawings and embodiments:

[0022] The application provides a pressure forming device for bushing pretreatment by improvement. The technical scheme of the application is:

[0023] As Figures 1-7As shown, a bushing pretreatment pressure forming device, including injection cylinder 1, the bottom of injection cylinder 1 is fixedly connected with upper spray disc 14, the inside of injection cylinder 1 is fixedly connected with upper suction disc 13, the bottom of upper suction disc 13 is fixedly connected with connecting bottom ring 16, the top of upper spray disc 14 is fixedly connected with connecting top ring 15, the bottom of connecting bottom ring 16 and the top of connecting top ring 15 are both rotationally connected with rotating inner ring 17, two rotating inner rings 17 are rotationally connected with each other, the outside of rotating inner ring 17 is fixedly connected with four extrusion inclined plates 19, the inside of rotating inner ring 17 is equidistantly fixedly connected with inner push column 18, the outside of injection cylinder 1 is communicated with injection port 4, the top of injection cylinder 1 is fixedly connected with rotating motor 3, the output end of rotating motor 3 is fixedly connected with motor rotating roller 7, the inside of injection cylinder 1 is fixedly connected with fixed inner cylinder 6, the inside of fixed inner cylinder 6 is fixedly connected with upper groove ring 11, the inside of fixed inner cylinder 6 is fixedly connected with lower groove ring 12, the outside of motor rotating roller 7 is slidingly clamped with connecting sliding plate 8, one side of connecting sliding plate 8 is fixedly connected with guide column 9, the bottom of connecting sliding plate 8 is fixedly connected with push pressing piece 10, guide column 9 is slidingly clamped between upper groove ring 11 and lower groove ring 12, the bottom of upper groove ring 11 is provided with four arc-shaped grooves, the top of lower groove ring 12 is provided with clamping groove which is matched with the bottom of upper groove ring 11; When in use: inject plastic through injection port 4, control motor rotating roller 7 to rotate through rotating motor 3, control guide column 9 to move between upper groove ring 11 and lower groove ring 12, so as to control the height of push pressing piece 10, initially, the extrusion inclined plates 19 on the outside of two rotating inner rings 17 are matched two by two, and the rear extrusion inclined plate 19 covers the discharge port of bottom upper spray disc 14, and the front extrusion inclined plate 19 covers the discharge port at the top, then push pressing piece 10 pushes inner push column 18 at the top to move, drives the front extrusion inclined plate 19 to rotate, so as to open the discharge port at the top, and suck in plastic, when the front extrusion inclined plate 19 contacts another extrusion inclined plate 19, push pressing piece 10 moves downward, pushes the rear extrusion inclined plate 19 to move, extrudes the gap between two extrusion inclined plates 19, closes the discharge port of upper suction disc 13, and makes plastic extrude through the discharge port of upper spray disc 14, so as to repeatedly control the distance between the extrusion inclined plates 19 on the outside of two rotating inner rings 17, and uniformly extrude the discharge.

[0024] Further, the outer side movable sleeve of the injection cylinder 1 has a guide outer cylinder 2, the inner side of the guide outer cylinder 2 is fixedly connected with an outer mold cylinder 20, the inner side of the outer mold cylinder 20 is fixedly connected with an inner mold column 22, the outer wall of the inner mold column 22 is movably connected with the inner wall of the outer mold cylinder 20, the bottom of the inner mold column 22 is fixedly connected with an inner mold bottom ring 23, the inner mold bottom ring 23 is movably connected with the inner wall of the bottom of the outer mold cylinder 20, the inner wall of the bottom of the inner mold bottom ring 23 is movably connected with an inner slide shaft 24, the inner slide shaft 24 is movably connected with the bottom of the outer mold cylinder 20, the inner wall of the bottom of the inner mold bottom ring 23 is movably connected with a compression spring 21, the outer side of the inner slide shaft 24 is movably connected with the compression spring 21, the bottom of the inner slide shaft 24 is fixedly connected with a reset push disc 25, the reset push disc 25 is located at the bottom of the outer mold cylinder 20, and the bottom of the outer mold cylinder 20 is movably connected with a push cylinder 5.

[0025] Working principle: in use: through the injection port 4, plastic is injected, the rotating motor 3 controls the rotation of the motor roller 7, the guide column 9 is controlled to move between the upper groove ring 11 and the lower groove ring 12, thereby controlling the height of the push piece 10, initially, the two extrusion inclined plates 19 on the outer side of the two rotating inner rings 17 are in close contact, and the rear extrusion inclined plate 19 covers the discharge port of the bottom upper spray disc 14, and the front extrusion inclined plate 19 covers the discharge port at the top, then the push piece 10 pushes the inner push column 18 at the top to move, thereby driving the front extrusion inclined plate 19 to rotate, so that the discharge port at the top is opened, and plastic is sucked in, when the front extrusion inclined plate 19 contacts the other extrusion inclined plate 19, the push piece 10 moves downward, thereby pushing the rear extrusion inclined plate 19 to move, extruding the gap between the two extrusion inclined plates 19, closing the discharge port of the upper suction disc 13, and making the plastic extrude through the discharge port of the upper spray disc 14, and the distance between the two extrusion inclined plates 19 on the outer side of the two rotating inner rings 17 is repeatedly controlled, thereby uniformly extruding the material, through the injection cylinder 1, the inner mold bottom ring 23 is extruded downward, the plastic is gathered between the outer mold cylinder 20 and the inner mold column 22, the inner mold bottom ring 23 moves downward, when cooled to a certain temperature, the plastic is formed, the guide outer cylinder 2 is separated from the outer side of the injection cylinder 1, moves to the top of the push cylinder 5, pushes the reset push disc 25 to reset upward, and the formed object is pushed out.

[0026] The above description enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Accordingly, the present application is not to be limited to the embodiments shown herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure forming device for bushing pre-treatment, comprising an injection-molding cylinder (1), characterized in that: The bottom of the injection cylinder (1) is fixedly connected with an upper spraying disc (14), the inside of the injection cylinder (1) is fixedly connected with an upper suction disc (13), the bottom of the upper suction disc (13) is fixedly connected with a connecting bottom ring (16), the top of the upper spraying disc (14) is fixedly connected with a connecting top ring (15), the bottom of the connecting bottom ring (16) and the top of the connecting top ring (15) are both rotationally connected with a rotating inner ring (17), the two rotating inner rings (17) are rotationally connected with each other, the outer side of the rotating inner ring (17) is fixedly connected with four extrusion inclined plates (19), and the inner side of the rotating inner ring (17) is equidistantly fixedly connected with an inner pushing column (18). The outside of the injection cylinder (1) is communicated with an injection port (4), the top of the injection cylinder (1) is fixedly connected with a rotating motor (3), the output end of the rotating motor (3) is fixedly connected with a motor rotating roller (7), and the inside of the injection cylinder (1) is fixedly connected with a fixed inner cylinder (6). The inside of the fixed inner cylinder (6) is fixedly connected with an upper groove ring (11), the inside of the fixed inner cylinder (6) is fixedly connected with a lower groove ring (12), the outer side of the motor rotating roller (7) is slidably connected with a connecting sliding plate (8), one side of the connecting sliding plate (8) is fixedly connected with a guide column (9), the bottom of the connecting sliding plate (8) is fixedly connected with a pushing piece (10), and the guide column (9) is slidably connected between the upper groove ring (11) and the lower groove ring (12). The bottom of the upper groove ring (11) is provided with four arc-shaped grooves, and the top of the lower groove ring (12) is provided with clamping grooves matched with the bottom of the upper groove ring (11).

2. The pressure forming apparatus for bushing pretreatment according to claim 1, characterized by: The outside of the injection cylinder (1) movably has a guide outer cylinder (2), the inside of the guide outer cylinder (2) is fixedly connected with an outer mold cylinder (20), and the inside of the outer mold cylinder (20) is fixedly connected with an inner mold column (22).

3. The pressure forming apparatus for bushing pretreatment according to claim 2, wherein: An inner mold bottom ring (23) is movably connected between the outer wall of the inner mold column (22) and the inner wall of the outer mold cylinder (20), the bottom of the inner mold bottom ring (23) is fixedly connected with an inner sliding shaft (24), the inner sliding shaft (24) is slidably connected to the bottom of the outer mold cylinder (20), a compression spring (21) is installed between the inner mold bottom ring (23) and the bottom inner wall of the outer mold cylinder (20), and the compression spring (21) is movably sleeved on the outer side of the inner sliding shaft (24).

4. The pressure forming apparatus for bushing pretreatment according to claim 3, wherein: The bottom of the inner sliding shaft (24) is fixedly connected with a reset pushing disc (25), the reset pushing disc (25) is located at the bottom of the outer mold cylinder (20), and a pushing cylinder (5) is installed at the bottom of the outer mold cylinder (20).

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