CN210436521U

CN210436521U - Injection molding equipment for machining precision mold

Info

Publication number: CN210436521U
Application number: CN201921099007.8U
Authority: CN
Inventors: 凌建德; 梁柱芬; 廖潮汉
Original assignee: Shenzhen Jietu Electrical Appliances Co Ltd
Current assignee: Shenzhen Jietu Electrical Appliances Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-01
Anticipated expiration: 2029-07-15

Abstract

The utility model provides an injection moulding device for precision mold processing. According to the technical scheme, the screw propulsion mechanism is innovatively improved, and the bin wall vibrator is arranged in the cylinder body, so that the material is favorably lowered in the hopper on one hand, and the discharge of bubbles in the material propulsion process can be promoted on the other hand. On the basis, the utility model adopts a semi-open type mould structure, a fixed body is contacted with a base, an upper mould half shell and a lower mould half shell are arranged on the fixed body, and a detachable central position-occupying body is arranged in the two mould half shells, through the mutual matching of the above structures, not only the forming effect on the melting material is achieved, but also the split type disassembly of the mould is realized; after the material molding and cooling are finished, the half shell and the central retainer of the mold can be conveniently disassembled, so that the molded material is only contacted with the fixed body, and the ejector rod can eject the material conveniently.

Description

Injection molding equipment for machining precision mold

Technical Field

The utility model relates to an injection moulding device technical field, concretely relates to injection moulding device for precision mold processing.

Background

The injection molding equipment is also called an injection molding machine, and is the main molding equipment for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. At present, injection molding equipment generally comprises an injection system, a mold closing system, a hydraulic transmission system, an electrical control system, a lubricating system, a heating and cooling system, a safety monitoring system and the like, wherein the injection system and the mold closing system are core working modules of the injection system and the mold closing system. In the injection molding equipment in the prior art, materials are hung on the wall in the process of being pushed by a screw, so that the material accounting is influenced, and the injection effect is influenced by easily generating bubbles. In addition, the mold of the existing injection molding equipment is not sufficiently opened, and still has a large contact area with the material in an opening state, so that ejection and demolding of the material are not facilitated.

Disclosure of Invention

The utility model discloses aim at to prior art's technical defect, provide an injection moulding device for precision mold processing to solve prior art's injection moulding device and there is the technical problem of wall built-up phenomenon at the in-process material that utilizes the screw rod to impel.

The utility model discloses another technical problem that solves is that its mould of prior art's injection moulding device is difficult to realize abundant opening.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

an injection molding device for processing a precise mold comprises a case, a cover plate, through holes, a motor, a bearing, a driving gear, a first transition gear, a transition shaft, a second transition gear, a driven shaft, a reducing screw, a cylinder body, a hopper, an outer sleeve, a heating ring, a base, an ejector rod and a mold, wherein the case is connected with the cover plate, the cover plate is provided with a plurality of through holes, a rotating shaft of the motor is connected with the bearing, the rotating shaft of the motor is connected with the driving gear, the driving gear is in meshing transmission with the first transition gear, the first transition gear is connected with the transition shaft, the transition shaft is also connected with the second transition gear, the second transition gear is in meshing transmission with the driven gear, the driven gear is connected with the driven shaft, the driven shaft is connected with the reducing screw, the reducing screw is sleeved in the cylinder body, the side, the side wall of the cylinder body is further connected with a heating ring and a bin wall vibrator, the cylinder body is sleeved in the outer sleeve, the front end of the cylinder body is connected with a base, an ejector rod is arranged in the base, and the front end of the base is connected with a mold.

Preferably, the base has a cavity therein, the ram is disposed in the cavity, and the ram is located on the axis of the cylinder.

Preferably, the mold comprises a fixing body, mold half shells, a central occupying body and a cavity, wherein the fixing body is connected to the front end of the base, the mold half shells are connected to the upper side and the lower side of the front end of the fixing body respectively, the central occupying body is connected to the mold half shells, the central occupying body is located between the two mold half shells, and the fixing body, the mold half shells and the central occupying body jointly enclose the cavity.

Preferably, the driving gear, the first transition gear, the second transition gear and the driven gear are all located in the machine box.

Preferably, the outer wall of the cylinder body is also connected with a raised head made of heat-resistant silica gel, and the cylinder body is in contact with the outer sleeve through the raised head.

In the above technical solution, the reducing screw is a reducing cylinder with helical blades surrounding the outer edge, and the helical blades have the same outer diameter, that is, the orthographic projections of the reducing screws are located on the same circle. Because the diameter of the central column of the reducing screw rod is smaller at the rear end and larger at the front end, the containing space of materials is gradually reduced in the process of being pushed forwards by the screw rod, and the effect of pressurization is achieved.

In the above technical solution, the case is used for carrying the main structure of the device, the cover plate thereon is used for opening the case, and the through holes can play a certain role in heat dissipation. The motor provides power for the rotation of the reducing screw rod, and the transmission function is realized through the following processes: the motor axis is connected on the bearing, and the driving gear rotates under the epaxial drive of motor to it is rotatory to drive first transition gear, because first transition gear and second transition gear are connected respectively on the transition axle, therefore drive the rotation of second transition gear, thereby drive driven gear and driven shaft and rotate, and then drive the reducing screw and rotate. The hopper on the side wall of the cylinder body is used for adding materials, and the bin wall vibrator on the side wall of the cylinder body is helpful for the descending of the materials in the hopper, and can expel air bubbles in the material pushing process; the heating ring on the side wall of the cylinder body performs a hot melting effect on the material. The outer sleeve plays a role in protecting the cylinder body. After the materials are pressurized in the cylinder body, the materials are sprayed into the mold from the front end through the base, after the materials are molded and cooled in the mold, the mold is opened, and the molded materials are ejected out through the ejector rods.

In the base, the cavity serves as a spray channel for the molten material and at the same time serves to carry the plunger. The mold consists of a fixed body, a mold half shell and a central position occupying body, wherein the fixed body is connected with the base and bears the upper and lower mold half shells, the central position occupying body plays roles in occupying and shaping, and the fixed body, the mold half shell and the central position occupying body jointly enclose a cavity which is the shape to be formed. After the material molding and cooling are finished, the half shell and the central retainer of the mold can be conveniently detached, so that the molded material is only contacted with the fixed body, and the ejector rod can eject the material conveniently.

Drawings

Fig. 1 is a schematic structural view of the whole of the present invention;

FIG. 2 is a schematic view of a partial structure of the mold of the present invention;

in the figure:

Detailed Description

The following will describe in detail specific embodiments of the present invention. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Example 1

An injection molding device for processing a precision mold is shown in fig. 1 and fig. 2, and comprises a case 1, a cover plate 2, a through hole 3, a motor 4, a bearing 5, a driving gear 6, a first transition gear 7, a transition shaft 8, a second transition gear 9, a driven gear 10, a driven shaft 11, a reducing screw 12, a cylinder body 13, a hopper 14, an outer sleeve 15, a heating ring 16, a base 17, an ejector rod 18 and a mold 19, wherein the case 1 is connected with the cover plate 2, the cover plate 2 is provided with a plurality of through holes 3, a rotating shaft of the motor 4 is connected to the bearing 5, the rotating shaft of the motor 4 is connected with the driving gear 6, the driving gear 6 is in meshing transmission with the first transition gear 7, the first transition gear 7 is connected to the transition shaft 8, the transition shaft 8 is also connected with the second transition gear 9, the second transition gear 9 is in meshing transmission with the driven gear 10, the driven gear 10 is, the driven shaft 11 is connected with a reducing screw 12, the reducing screw 12 is sleeved in a cylinder body 13, a hopper 14 is connected to the side wall of the cylinder body 13, a heating ring 16 and a bin wall vibrator are further connected to the side wall of the cylinder body 13, the cylinder body 13 is sleeved in an outer sleeve 15, a base 17 is connected to the front end of the cylinder body 13, an ejector rod 18 is arranged in the base 17, and a mold 19 is connected to the front end of the base 17. The base 17 has a cavity 171 therein, the ram 18 is disposed in the cavity 171, and the ram 18 is located on the axis of the cylinder 13. The mold 19 comprises a fixing body 191, mold half shells 192, a central position occupying body 193 and a cavity 194, wherein the fixing body 191 is connected to the front end of the base 17, the mold half shells 192 are connected to the upper side and the lower side of the front end of the fixing body 191 respectively, the central position occupying body 193 is connected to the mold half shells 192, the central position occupying body 193 is located between the two mold half shells 192, and the fixing body 191, the mold half shells 192 and the central position occupying body 193 jointly enclose the cavity 194. The driving gear 6, the first transition gear 7, the second transition gear 9 and the driven gear 10 are all positioned in the machine case 1. The outer wall of the cylinder body 13 is also connected with a raised head made of heat-resistant silica gel, and the cylinder body 13 is in contact with the outer sleeve 15 through the raised head.

The working principle of the device is as follows: the case 1 is used for carrying the main structure of the device, the cover plate 2 on the case 1 is used for opening the case 1, and the through holes 3 can play a certain role in heat dissipation. The motor 4 provides power for the rotation of the reducing screw 12, and the transmission function is realized through the following processes: the middle shaft of the motor 4 is connected to the bearing 5, the driving gear 6 is driven by the middle shaft of the motor 4 to rotate, so that the first transition gear 7 is driven to rotate, and the first transition gear 7 and the second transition gear 9 are respectively connected to the transition shaft 8, so that the second transition gear 9 is driven to rotate, the driven gear 10 and the driven shaft 11 are driven to rotate, and the reducing screw 12 is driven to rotate. The hopper 14 on the side wall of the cylinder body 13 is used for feeding materials, and the bin wall vibrator on the side wall of the cylinder body is used for helping the materials in the hopper 14 to descend and simultaneously removing air bubbles in the material pushing process; the heating ring 16 on the side wall of the cylinder body 13 performs a hot melting function on the materials. The outer sleeve 15 protects the cylinder. The material is pressurized in the cylinder 13, and then injected into the mold 19 from the front end through the base 17, and after molding and cooling in the mold 19, the mold 19 is opened and the molded material is ejected by the ejector pin 18.

In the base 17, a cavity 171 serves as a jetting passage for the molten material and at the same time serves to carry the ram 18. The mold 19 is composed of a fixing body 191, mold half shells 192 and a central position occupying body 193, wherein the fixing body 191 is connected with the base 17 and bears the upper and lower mold half shells 192, the central position occupying body 193 plays a role in occupying and shaping, the fixing body 191, the mold half shells 192 and the central position occupying body 193 jointly enclose a cavity 194, and the cavity 194 is a shape to be shaped. After the material is formed and cooled, the half-shell 192 and the central retainer 193 of the mold can be conveniently disassembled, so that the formed material is only contacted with the fixing body 191, and the material can be ejected by the ejector rod 18 more conveniently.

Example 2

An injection molding device for processing a precision mold is shown in fig. 1 and fig. 2, and comprises a case 1, a cover plate 2, a through hole 3, a motor 4, a bearing 5, a driving gear 6, a first transition gear 7, a transition shaft 8, a second transition gear 9, a driven gear 10, a driven shaft 11, a reducing screw 12, a cylinder body 13, a hopper 14, an outer sleeve 15, a heating ring 16, a base 17, an ejector rod 18 and a mold 19, wherein the case 1 is connected with the cover plate 2, the cover plate 2 is provided with a plurality of through holes 3, a rotating shaft of the motor 4 is connected to the bearing 5, the rotating shaft of the motor 4 is connected with the driving gear 6, the driving gear 6 is in meshing transmission with the first transition gear 7, the first transition gear 7 is connected to the transition shaft 8, the transition shaft 8 is also connected with the second transition gear 9, the second transition gear 9 is in meshing transmission with the driven gear 10, the driven gear 10 is, the driven shaft 11 is connected with a reducing screw 12, the reducing screw 12 is sleeved in a cylinder body 13, a hopper 14 is connected to the side wall of the cylinder body 13, a heating ring 16 and a bin wall vibrator are further connected to the side wall of the cylinder body 13, the cylinder body 13 is sleeved in an outer sleeve 15, a base 17 is connected to the front end of the cylinder body 13, an ejector rod 18 is arranged in the base 17, and a mold 19 is connected to the front end of the base 17.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A injection moulding equipment for precision mold processing, its characterized in that includes quick-witted case (1), apron (2), through-hole (3), motor (4), bearing (5), driving gear (6), first transition gear (7), transition axle (8), second transition gear (9), driven gear (10), driven shaft (11), reducing screw (12), cylinder body (13), hopper (14), outer sleeve (15), heating ring (16), base (17), ejector pin (18), mould (19), wherein be connected with apron (2) on quick-witted case (1), a plurality of through-holes (3) have been seted up on apron (2), the pivot of motor (4) is connected on bearing (5), be connected with driving gear (6) in the pivot of motor (4), driving gear (6) and first transition gear (7) meshing transmission, first transition gear (7) are connected on transition axle (8), still be connected with second transition gear (9) on transition axle (8), second transition gear (9) and driven gear (10) meshing transmission, driven gear (10) are connected on driven shaft (11), driven shaft (11) are connected with reducing screw (12), reducing screw (12) cup joint in cylinder body (13), are connected with hopper (14) on the lateral wall of cylinder body (13), still are connected with heating ring (16) and bulkhead vibrator on the lateral wall of cylinder body (13), cylinder body (13) cup joint in outer sleeve (15), are connected with base (17) at the front end of cylinder body (13), be provided with ejector pin (18) in base (17), be connected with mould (19) at the front end of base (17).

2. An injection molding apparatus for precision mold tooling as claimed in claim 1, wherein said base (17) has a cavity (171) therein, said ejector pin (18) being disposed in the cavity (171), said ejector pin (18) being located on the axis of the cylinder (13).

3. The injection molding apparatus for precision mold processing according to claim 1, wherein the mold (19) comprises a fixing body (191), a mold half-shell (192), a center retainer (193), and a cavity (194), wherein the fixing body (191) is connected to a front end of the base (17), the mold half-shell (192) is connected to upper and lower sides of the front end of the fixing body (191), the center retainer (193) is connected to the mold half-shell (192), the center retainer (193) is located between the two mold half-shells (192), and the fixing body (191), the mold half-shell (192), and the center retainer (193) jointly enclose the cavity (194).

4. The injection molding apparatus for precision mold machining according to claim 1, wherein the driving gear (6), the first transition gear (7), the second transition gear (9), and the driven gear (10) are all located in the housing (1).

5. An injection molding apparatus for precision mold tooling as claimed in claim 1, wherein a boss of heat resistant silicone is attached to the outer wall of the cylinder (13) through which the cylinder (13) contacts the outer sleeve (15).