CN211993978U

CN211993978U - Floor sweeper part injection mold

Info

Publication number: CN211993978U
Application number: CN202020219899.7U
Authority: CN
Inventors: 廖艳婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-11-24
Anticipated expiration: 2030-02-27

Abstract

An injection mold for sweeper parts comprises a sprue bushing, a heat insulation plate, a panel, a water gap plate, an A plate, a B plate, a face needle plate, a bottom needle plate, square iron, a bottom plate, a front mold core detachably connected with the A plate, a front mold insert detachably connected with the front mold core, a rear mold core detachably connected with the B plate, a rear mold insert detachably connected with the rear mold core and sliding block assemblies arranged around the rear mold core, wherein the front mold core, the front mold insert, the rear mold core, the rear mold insert and the sliding block assemblies jointly enclose a mold cavity, and the structure of the mold cavity is the same as that of the sweeper parts, the size of the main flow channel is the product of the size of the sweeper component and the material shrinkage of the sweeper component, the top surface of the A plate is provided with a trapezoidal main flow channel, and the A plate is communicated with the squirt nozzle, the inverted cone-shaped sub-runner is also arranged on the A plate, the large end of the inverted cone-shaped sub-runner is communicated with the main runner, and the small end of the inverted cone-shaped sub-runner penetrates through the A plate and extends into the die cavity.

Description

Floor sweeper part injection mold

Technical Field

The utility model relates to an injection moulding technical field specifically is a quick-witted part injection mold sweeps floor.

Background

Along with the continuous improvement of the living standard of people, the sweeper product is accepted by more and more people and becomes an indispensable cleaning helper in families, and the sweeper product can also be developed from primary intelligence to a higher intelligent degree and gradually replace manual cleaning. The parts of the sweeper often have more curved surfaces to make the sweeper attractive, and more ribs and side holes to ensure the use strength and the use function of the sweeper. However, the curved surface, ribs, side holes and other structures need higher cost if being formed by machining, and are not beneficial to batch production.

Injection molding is a processing technology in which a material in a molten state is injected into a mold cavity, and the material is cooled to obtain a product. The structure such as convenient shaping processing curved surface, rib and side opening still do benefit to batch production when, practice thrift the cost and product interchangeability is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

For solving the above problem, the utility model provides a quick-witted part injection mold sweeps floor can the inside complex structure of quick-witted part of sweeping floor of shaping, practices thrift cost and product interchangeability height.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an injection mold for sweeper parts comprises a sprue bushing, a heat insulation plate, a panel, a water gap plate, an A plate, a B plate, a face needle plate, a bottom needle plate, square iron, a bottom plate, a front mold core detachably connected with the A plate, a front mold insert detachably connected with the front mold core, a rear mold core detachably connected with the B plate, a rear mold insert detachably connected with the rear mold core and a sliding block assembly arranged around the rear mold core, wherein the top surface of the front mold core is provided with a first boss which is consistent with the sweeper part structure to form a mold core, the front mold insert, the rear mold core, the rear mold insert and the sliding block assembly jointly enclose a mold cavity, the mold cavity structure is the same as the sweeper part, the size of the mold cavity is the product of the sweeper part size and the sweeper part material shrinkage rate, the top surface of the A plate is provided with a trapezoidal main runner communicated with the sprue bushing, and the A plate is also provided with an inverted, the big end of the inverted cone-shaped branch channel is communicated with the main channel, and the small end of the inverted cone-shaped branch channel penetrates through the A plate and extends into the cavity of the mold.

Preferably, the front mold core is provided with two groups of water transporting holes with the aperture of 8mm, wherein one group of water transporting holes is arranged around the periphery of the plastic part, the other group of water transporting holes is arranged at the corresponding position of the first boss, and the distance from the water transporting holes to the surface of the plastic part is 12-15 mm.

Preferably, the slider assembly comprises a slider insert, a slider seat, an inclined guide post and a guide rail, the slider insert is fixedly connected to the slider seat, the second bosses are arranged on the left side and the right side of the slider seat, the bottom surface of the guide rail abuts against the top surfaces of the second bosses, the guide rail is fixedly connected to the B plate, the inclined guide post is fixedly connected to the A plate and extends into the slider seat, and the slider seat and the slider insert can be kept away from or close to the rear mold core to slide together by the acting force of the inclined guide post on the slider seat.

Preferably, the rear mold core is provided with a tiger mouth boss, the front mold core is provided with a corresponding tiger mouth groove, and the tiger mouth boss is matched with the tiger mouth groove to avoid dislocation of the mold core during mold closing.

Preferably, the tiger's mouth boss and the tiger's mouth groove are both provided with a hanging ring hole.

Preferably, the top surface of the squirt nozzle is 9-12mm higher than the top surface of the heat insulation plate.

Preferably, an exhaust groove is formed in the parting surface of the rear mold core along the periphery of the mold cavity and is divided into two sections, wherein the section close to the mold cavity is 0.02mm deep, and the section far away from the mold cavity is 0.3mm deep.

(III) advantageous effects

The utility model provides a quick-witted part injection mold sweeps floor possesses following beneficial effect: the mold core is required to be processed and molded according to the part structure of the sweeper, then the mold core is installed to form a mold cavity which is consistent with the whole part structure of the sweeper, then the injection mold is fixed on an injection molding machine, a nozzle of the injection molding machine is abutted against a sprue bushing, molten plastic flows into a trapezoidal main runner through the sprue bushing, then the molten plastic is injected from a sub-runner and fills the whole mold cavity, and then the mold is subjected to pressure maintaining and cooling to obtain a plastic part after mold opening. And products with the same structure and size can be obtained by continuously opening and closing the dies. The main runner adopts the trapezoidal cross section, has both made things convenient for processing, reduces the processing cost, can reduce calorific loss and loss of pressure again. Meanwhile, the sub-runners are of inverted cone structures, and when the die is opened, the small ends of the sub-runners can be pulled off and pulled out of the sub-runner holes.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic structural view of a sweeper part of the present invention;

figure 2 shows a perspective view of a mold of an embodiment of the present invention;

figure 3 shows a cross-sectional view of an embodiment of the invention;

fig. 4 shows a schematic structural view of a front mold core in an embodiment of the present invention;

FIG. 5 is a schematic view of a rear mold insert according to an embodiment of the present invention;

fig. 6 shows a schematic structural diagram of the slider assembly in an embodiment of the present invention.

In the figure: 1 sprue, 2 heat insulating boards, 3 panels, 4 water gap plates, 5A plates, 6B plates, 7 face needle plates, 8 bottom needle plates, 9 square iron, 10 bottom plates, 11 front mold cores, 12 front mold inserts, 13 rear mold cores, 14 rear mold inserts, 15 slider assemblies, 110 tiger's mouth grooves, 130 tiger's mouth bosses, 131 exhaust grooves, 151 slider inserts, 152 slider seats, 153 inclined guide columns and 154 guide rails.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-6, the embodiment of the present invention provides an injection mold for sweeper parts, which comprises a sprue bush 1, a heat insulation board 2, a panel 3, a nozzle plate 4, an a plate 5, a B plate 6, a face pin plate 7, a bottom pin plate 8, square iron 9, a bottom plate 10, a front mold core 11 detachably connected with the a plate 5, a front mold insert 12 detachably connected to the front mold core 11, a rear mold core 13 detachably connected with the B plate 6, a rear mold insert 14 detachably connected to the rear mold core 13, and a slide block assembly 15 disposed around the rear mold core 13, wherein the top surface of the front mold core 11 is provided with a first boss in accordance with the sweeper part structure to form a mold core, the front mold core 11, the front mold insert 12, the rear mold core 13, the rear mold insert 14, and the slide block assembly 15 together enclose a mold cavity, the mold cavity structure is the same as the sweeper part, and the size is the product of the sweeper part size and the sweeper part shrinkage rate, the top surface of the A plate 5 is provided with a trapezoidal main runner which is communicated with the sprue bushing 1, the A plate 5 is also provided with an inverted cone-shaped sub-runner, the large end of the inverted cone-shaped sub-runner is communicated with the main runner, and the small end of the inverted cone-shaped sub-runner penetrates through the A plate 5 and extends into the cavity of the mold.

According to the scheme, the mold core is required to be processed and molded according to the part structure of the sweeper, then the mold core is installed to form a mold cavity which is identical to the whole part structure of the sweeper, then the injection mold is fixed on an injection molding machine, a nozzle of the injection molding machine is abutted to the sprue bushing 1, molten plastic flows into the trapezoidal main runner through the sprue bushing 1, then the molten plastic is injected from the sub-runner and fills the whole mold cavity, and after pressure maintaining and cooling of the mold, the mold is opened to obtain the plastic part. And products with the same structure and size can be obtained by continuously opening and closing the dies. The main runner adopts the trapezoidal cross section, has both made things convenient for processing, reduces the processing cost, can reduce calorific loss and loss of pressure again. Meanwhile, the sub-runners are of inverted cone structures, and when the die is opened, the small ends of the sub-runners can be pulled off and pulled out of the sub-runner holes.

Further, in order to improve the cooling effect of the mold, thereby shortening the cooling time of the product and improving the production efficiency, the front mold core 11 is provided with two groups of water transporting holes with the aperture of 8mm, wherein one group is arranged around the periphery of the plastic part, the other group is arranged at the corresponding position of the first boss, and the distance from the water transporting holes to the surface of the plastic part is 12-15 mm.

Further, in order to better realize the lateral forming of the product, the slider assembly 15 includes a slider insert 151, a slider seat 152, an inclined guide post 153 and a guide rail 154, the slider insert 151 is fixedly connected to the slider seat 152, the left and right sides of the slider seat 152 are provided with a second boss, the bottom surface of the guide rail 154 abuts against the top surface of the second boss, the guide rail 154 is fixedly connected to the B plate 6, the inclined guide post 153 is fixedly connected to the a plate 5, and the inclined guide post 153 extends into the slider seat 152, and the slider seat 152 and the slider insert 151 can be kept away from or slide close to the back mold core 13 together by the acting force of the inclined guide post 153 on the slider seat 152.

Furthermore, in order to improve the dimensional accuracy of the product and better protect the mold cavity, the rear mold core 13 is provided with a tiger's mouth boss 130, the front mold core 11 is provided with a corresponding tiger's mouth groove 110, and the tiger's mouth boss 130 is matched with the tiger's mouth groove 110 to avoid the dislocation of the mold core during mold closing.

Furthermore, in order to facilitate the processing and carrying of the mold insert, the tiger's mouth boss 130 and the tiger's mouth groove 110 are both provided with a ring eye.

Furthermore, in order to conveniently mount the mould on the injection molding machine, the top surface of the squirt nozzle 1 is 9-12mm higher than the top surface of the heat insulation plate 2.

Further, in order to avoid the air trapping of the mold cavity and obtain unqualified products, the parting surface of the rear mold core 13 is provided with an exhaust groove 131 along the periphery of the mold cavity, the exhaust groove 131 is divided into two sections, one section close to the mold cavity is 0.02mm deep, and the other section far away from the mold cavity is 0.3mm deep. Being close to one section dark 0.02mm setting of die cavity, then can effectually avoiding the mould die cavity to leak gluey to do not influence product appearance, keep away from one section dark 0.3mm setting of die cavity, then the discharge die cavity combustion gas that can be better.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick-witted part injection mold sweeps floor, includes purt mouth (1), heat insulating board (2), panel (3), mouth of a river board (4), A board (5), B board (6), face faller (7), end faller (8), square iron (9) and bottom plate (10), its characterized in that still includes: the floor sweeping machine is characterized in that a front mold core (11) detachably connected with a plate A (5), a front mold insert (12) detachably connected onto the front mold core (11), a rear mold core (13) detachably connected with a plate B (6), a rear mold insert (14) detachably connected onto the rear mold core (13) and sliding block assemblies (15) arranged on the periphery of the rear mold core (13) are arranged, a first boss consistent with a part structure of the floor sweeping machine is arranged on the top surface of the front mold core (11) to form a mold core, the front mold core (11), the front mold insert (12), the rear mold core (13), the rear mold insert (14) and the sliding block assemblies (15) jointly enclose a mold cavity, the mold cavity structure is the same as that of the floor sweeping machine part, the size of the mold core is the product of the size of the floor sweeping machine part and the material shrinkage rate of the floor sweeping machine part, a trapezoidal sprue is arranged on the top surface of the plate A (, still be equipped with the back taper subchannel on A board (5), back taper subchannel main aspects and sprue switch-on, the tip passes A board (5) and stretches into the mould die cavity.

2. The injection mold for parts of floor sweeping machine according to claim 1, wherein the front mold core (11) is provided with two groups of water transporting holes with 8mm pore diameter, one group is arranged around the periphery of the plastic part, the other group is arranged at the corresponding position of the first boss, and the distance from the water transporting holes to the surface of the plastic part is 12-15 mm.

3. The injection mold for sweeper parts according to claim 1, wherein the slider assembly (15) comprises a slider insert (151), a slider seat (152), an inclined guide post (153) and guide rails (154), the slider insert (151) is fixedly connected to the slider seat (152), second bosses are arranged on the left side and the right side of the slider seat (152), the bottom surface of each guide rail (154) abuts against the top surface of each second boss, the guide rails (154) are fixedly connected to the B plate (6), the inclined guide post (153) is fixedly connected to the A plate (5) and extends into the slider seat (152), and the slider seat (152) and the slider insert (151) can be far away from or close to the rear mold core (13) to slide together through the action force of the inclined guide post (153) on the slider seat (152).

4. The injection mold for the sweeper component according to claim 1, wherein the rear mold core (13) is provided with a tiger's mouth boss (130), the front mold core (11) is provided with a corresponding tiger's mouth groove (110), and the tiger's mouth boss (130) is matched with the tiger's mouth groove (110) to avoid mold core dislocation during mold closing.

5. The sweeper part injection mold as claimed in claim 4, wherein the first web boss (130) and the first web recess (110) are provided with a ring eye.

6. The sweeper component injection mold according to claim 1, wherein the top surface of the sprue bushing (1) is 9-12mm higher than the top surface of the heat insulation plate (2).

7. The sweeper part injection mold according to claim 1, characterized in that an exhaust groove (131) is formed in the parting surface of the rear mold core (13) along the periphery of the mold cavity, and the exhaust groove (131) is divided into two sections, wherein the section close to the mold cavity is 0.02mm deep, and the section far away from the mold cavity is 0.3mm deep.