Injection molding mechanism for injection mold

Abstract

The present invention relates to the field of injection molding technology, and discloses an injection molding mechanism for an injection mold, wherein an injection molding channel is provided in an injection molding head, and a joint is provided on the injection molding head corresponding to the outlet of the injection molding channel; a nozzle assembly which is in an overall bent shape is connected to the joint, and a plurality of wrenches are hinged on the circumference of the joint, and the wrenches have protruding couplings, and the plurality of wrenches are closed together for the couplings to clamp the nozzle assembly. By applying the technical solution of the present invention, the plurality of wrenches are turned upward and closed (folded) toward the nozzle assembly at the same time, and the nozzle assembly can be clamped with the couplings thereon, so as to achieve docking between the nozzle assembly and the injection molding head. In the above, it is more convenient to operate the plurality of wrenches to flip and achieve clamping, and it is faster to release the clamped nozzle assembly at the same time. The position adjustment of the injection molding mechanism for the injection mold is convenient and quick, and it can quickly achieve docking with the pouring port, and further achieve better docking after fine position adjustment, thereby avoiding the occurrence of overflow.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to an injection molding mechanism for an injection mold. Background Art

[0002] The molten plastic is injected into the mold through the nozzle, and the plastic is cooled in the mold to produce a plastic product. In the prior art, the nozzle is usually installed vertically. If the surface of some plastic products is an inclined surface, and the pouring port of the injection mold is set on the inclined surface. This makes it impossible for the nozzle to completely dock with the pouring port, and overflow may occur. In addition, even if the nozzle is set to a bent shape, due to changes in the injection mold or slight adjustments to the injection molded product, the bending angle of the nozzle may not be able to fully match the pouring port, and overflow may occur; or the position adjustment of the nozzle becomes more cumbersome. The above-mentioned overflow not only causes a waste of raw materials, but also the high-temperature overflow may scald the operator. In addition, the overflow has some adverse effects on the injection molding process, such as the overflow dripping and sticking to the mold, affecting the normal use of the mold; the overflow dripping on the plastic product, the plastic product is burned and deformed, causing it to be scrapped. Summary of the invention

[0003] The present invention aims to provide an injection molding mechanism for an injection mold to solve the above-mentioned technical problems in the prior art that the position adjustment of the nozzle is complicated and it is difficult to connect with the pouring port.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] An injection mechanism for an injection mold comprises an injection head; an injection channel is provided in the injection head, and a joint is provided on the injection head corresponding to the outlet of the injection channel; a nozzle assembly which is bent as a whole is connected to the joint, and a plurality of wrenches are hinged on the circumference of the joint, the wrenches have protruding coupling pieces, and the plurality of wrenches are closed to clamp the coupling pieces to the nozzle assembly.

[0006] According to the injection molding mechanism for the injection mold, a plurality of pairs of evenly spaced ears are connected to the circumference of the joint, and a ring is passed through the ears; the ring is coaxially arranged with the joint.

[0007] According to the injection molding mechanism for the injection mold, the first end of each of the wrenches is connected to a rotating sleeve, the rotating sleeve is located between each pair of supporting ears, and the rotating sleeve is arranged outside the ring to form a rotational fit with the ring.

[0008] According to the injection molding mechanism for the injection mold, the second ends of the plurality of wrenches are simultaneously sleeved with the same clamping hoop, and the clamping hoop is contracted to pull the wrench to clamp the nozzle assembly.

[0009] According to the injection molding mechanism for the injection mold, the second end of each of the wrenches is provided with a limit slot in cooperation with the clamp, and the limit slot is provided on a side of the wrench away from the nozzle assembly.

[0010] According to the injection molding mechanism for the injection mold, a chuck that cooperates with the engaging piece is provided at the joint between the nozzle assembly and the joint.

[0011] According to the injection molding mechanism for the injection mold, the nozzle assembly includes an elbow and a nozzle body; the first end of the elbow is connected to the joint, and the second end of the elbow is connected to the nozzle body; the chuck is connected to the first end of the elbow and is coaxially arranged with the first end of the elbow.

[0012] According to the injection molding mechanism for the injection mold, the nozzle assembly includes a nozzle body; the nozzle body is bent, and the inlet end of the nozzle body is connected to the joint; the chuck is arranged at the inlet end of the nozzle body and is coaxially arranged with the inlet end of the nozzle body.

[0013] Beneficial effects of the present invention:

[0014] By applying the technical solution of the present invention, after multiple wrenches are flipped upward and closed (folded) toward the nozzle assembly at the same time, the nozzle assembly can be clamped with the aid of the joint pieces thereon to achieve docking of the nozzle assembly with the injection molding head. In the above, it is more convenient to operate multiple wrenches to flip and achieve clamping, and it is faster to release the clamped nozzle assembly at the same time. In other words, the nozzle assembly can be quickly loosened, and then the nozzle assembly can be rotated so that the nozzle outlet of the nozzle assembly rotates around the central axis of the joint, so as to find a position that better matches the pouring port; after that, the wrench is operated to fix the injection molding head (joint). Thereafter, the nozzle assembly can be loosened and the position can be finely adjusted again to ensure better coordination with the pouring port and avoid overflow. In summary, the position adjustment of the injection molding mechanism used for the injection mold is convenient and quick, and can quickly achieve docking with the pouring port, and further achieve better docking through fine position adjustment to avoid the occurrence of overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0016] Figure 2 This is a schematic diagram of the coordination between the ring and the lug (viewed from above);

[0017] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the middle A part;

[0018] Figure 4 yes Figure 1 Schematic diagram of the path for rotating and adjusting the position of the middle nozzle assembly (the double-dotted line is the path);

[0019] Figure 5 is a structural schematic diagram of Embodiment 2 of the present invention;

[0020] Figure 6 yes Figure 5 Schematic diagram of the path for rotating and adjusting the position of the middle nozzle assembly (the double-dotted line is the path);

[0021] Figure 7 yes Figure 5 A partial enlarged schematic diagram of the middle B part;

[0022] Reference numerals:

[0023] Injection head 1, injection channel 2, joint 3, ring 4, lug 5, wrench 6, chuck 7, joint 8, limit slot 9, elbow 10, nozzle body 11, nozzle assembly 12, rotating sleeve 13, clamp 14, and diverter plate 15. DETAILED DESCRIPTION

[0024] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0025] Please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0026] Embodiment 1

[0027] See also Figure 1-Figure 4 The present invention provides an injection molding mechanism for an injection mold, comprising an injection head 1; an injection molding channel 2 is provided in the injection head 1, and a joint 3 is provided on the injection head 1 corresponding to the outlet of the injection molding channel 2; a nozzle assembly 12 which is bent as a whole is connected to the joint 3, and a plurality of wrenches 6 are hinged on the circumference of the joint 3, and the wrench 6 has a protruding coupling piece 8, and the plurality of wrenches 6 are closed to be used for the coupling piece 8 to clamp the nozzle assembly 12.

[0028] The injection molding mechanism for the injection mold further has the following improvements:

[0029] The injection head 1 may be disc-shaped, and a threaded connector 3 may be provided at the inlet of the injection channel 2 for connection with an injection molding machine.

[0030] like Figure 2 , the circumference of the joint 3 is connected with multiple pairs of evenly spaced lugs 5, and the lugs 5 are penetrated with a ring 4; the ring 4 is coaxially arranged with the joint 3. The first end of each of the wrenches 6 is connected with a rotating sleeve 13, the rotating sleeve 13 is located between each pair of lugs 5, and the rotating sleeve 13 is sleeved outside the ring 4 to form a rotational fit with the ring 4. At the same time, the second ends of the multiple wrenches 6 are simultaneously sleeved with the same clamp 14, and the clamp 14 is contracted to pull the wrench 6 to clamp the nozzle assembly 12.

[0031] In the above, the second end of each of the wrenches 6 is provided with a limit slot 9 in cooperation with the clamp 14, and the limit slot 9 is provided on the side of the wrench 6 away from the nozzle assembly 12. And grooves are provided on both sides of the limit slot 9 corresponding to the side of the clamp 14, and the grooves can further limit the side of the clamp 14.

[0032] Reference Figure 7 In addition, the nozzle assembly 12 and the joint 3 are provided with a chuck 7 that cooperates with the joint 8. When the joint 8 is pulled by the wrench 6, the joint 8 pushes the chuck 7 and engages with the chuck 7 to achieve the joint. Of course, the nozzle assembly 12 and the joint 3 should be equipped with a sealing gasket.

[0033] The nozzle assembly 12 can be arranged in two ways: first, Figure 1 , the nozzle assembly 12 includes an elbow 10 and a nozzle body 11; the first end of the elbow 10 is connected to the joint 3, and the second end of the elbow 10 is connected to the nozzle body 11; the chuck 7 is connected to the first end of the elbow 10 and is coaxially arranged with the first end of the elbow 10. Second, the nozzle assembly 12 includes a nozzle body 11; the nozzle body 11 is bent, and the inlet end of the nozzle body 11 is connected to the joint 3; the chuck 7 is arranged at the inlet end of the nozzle body 11 and is coaxially arranged with the inlet end of the nozzle body 11.

[0034] Embodiment 2

[0035] See also Figure 5-Figure 7 The present invention provides an injection molding mechanism for an injection mold, comprising an injection head 1; at least two nozzle assemblies 12 are connected to the injection head 1; an injection channel 2 connected to the nozzle assembly 12 is provided in the injection head 1; a joint 3 is provided on the injection head 1 corresponding to the outlet of the injection channel 2; the nozzle assembly 12 which is bent as a whole is connected to the joint 3, and a plurality of wrenches 6 are hinged on the circumference of the joint 3, and the wrench 6 has a protruding coupling member 8, and the plurality of wrenches 6 are closed for the coupling member 8 to clamp the nozzle assembly 12.

[0036] The injection molding mechanism for the injection mold further has the following improvements:

[0037] Reference Figure 2 The circumference of the joint 3 is connected with a plurality of pairs of evenly spaced lugs 5, and a ring 4 is passed through the lugs 5; the ring 4 is coaxially arranged with the joint 3. The first end of each of the wrenches 6 is connected with a rotating sleeve 13, which is located between each pair of lugs 5, and the rotating sleeve 13 is sleeved outside the ring 4 to form a rotational fit with the ring 4.

[0038] The second ends of the plurality of wrenches 6 are simultaneously sleeved with the same clamp 14, and the clamp 14 is contracted to pull the wrench 6 to clamp the nozzle assembly 12. The second end of each wrench 6 is matched with the clamp 14 to be provided with a limit slot 9, and the limit slot 9 is opened on the side of the wrench 6 away from the nozzle assembly 12.

[0039] A chuck 7 that cooperates with the joint 8 is provided at the joint between the nozzle assembly 12 and the joint 3 .

[0040] The nozzle assembly 12 can be arranged in two ways: first, Figure 5 , the nozzle assembly 12 includes an elbow 10 and a nozzle body 11; the first end of the elbow 10 is connected to the joint 3, and the second end of the elbow 10 is connected to the nozzle body 11; the chuck 7 is connected to the first end of the elbow 10 and is coaxially arranged with the first end of the elbow 10. Second, the nozzle assembly 12 includes a nozzle body 11; the nozzle body 11 is bent, and the inlet end of the nozzle body 11 is connected to the joint 3; the chuck 7 is arranged at the inlet end of the nozzle body 11 and is coaxially arranged with the inlet end of the nozzle body 11.

[0041] like Figure 6 The injection head 1 can be in a strip shape, and in this case the injection head 1 is called a manifold 15. A threaded connector 3 can be provided at the inlet of the injection channel 2 for connection with the injection molding machine. The multiple nozzle assemblies 12 connected to the injection head 1 can be independently rotated to complete position adjustment to match the pouring port and achieve more comprehensive docking.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An injection molding mechanism for an injection mold, characterized in that: The invention comprises an injection head; an injection channel is provided in the injection head, and a joint is provided on the injection head corresponding to the outlet of the injection channel; a nozzle assembly which is bent as a whole is connected to the joint, and a plurality of wrenches are hinged on the circumference of the joint, and a protruding joint is provided on the wrench, and the plurality of wrenches are closed to clamp the joint to the nozzle assembly, and the nozzle outlet of the nozzle assembly rotates around the central axis of the joint; The circumference of the joint is connected with a plurality of pairs of evenly spaced lugs, and the lugs are provided with rings; the rings are coaxially arranged with the joint; The first end of each of the wrenches is connected to a rotating sleeve, which is located between each pair of lugs and is sleeved outside the ring to form a rotational fit with the ring; The second ends of the plurality of wrenches are simultaneously sleeved with the same clamping hoop, and the clamping hoop is contracted to pull the wrench to clamp the nozzle assembly; The second end of each of the wrenches is provided with a limit slot in cooperation with the clamp, and the limit slot is provided on a side of the wrench away from the nozzle assembly; A chuck that cooperates with the joint piece is arranged at the jointing position of the nozzle assembly and the joint.

2. The injection molding mechanism for an injection mold according to claim 1, characterized in that: The nozzle assembly comprises an elbow and a nozzle body; the first end of the elbow is butted with the joint, and the second end of the elbow is butted with the nozzle body; the chuck is connected to the first end of the elbow and is coaxially arranged with the first end of the elbow.

3. The injection molding mechanism for an injection mold according to claim 1, characterized in that: The nozzle assembly comprises a nozzle body; the nozzle body is bent, and the inlet end of the nozzle body is butted with the joint; the chuck is arranged at the inlet end of the nozzle body and is coaxially arranged with the inlet end of the nozzle body.

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