CN213055824U

CN213055824U - Stable form mould runner shearing mechanism

Info

Publication number: CN213055824U
Application number: CN202021178529.XU
Authority: CN
Inventors: 仇军成
Original assignee: Taicang Qiujing Plastic Mould Co ltd
Current assignee: Taicang Qiujing Plastic Mould Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-27
Anticipated expiration: 2030-06-23

Abstract

The utility model belongs to the technical field of injection mold, more specifically say, relate to a stable form mould runner shearing mechanism. The device comprises a fixed template, a fixed die block, a fixed die core, a movable template, a movable module and a movable die core; when the die is closed, the fixed die core and the movable die core are matched to form a die cavity for product molding; one end of the die cavity is also connected with a buffer cavity, and the buffer cavity is arranged on one side of the fixed die core; a flow channel is led out from one side of the fixed mold core from the buffer cavity; an electric heating head is also embedded on the inner wall of the buffer cavity; a transverse tool rest hole is formed in the movable mould block, a tool rest can be arranged in the tool rest hole in a sliding manner, and the tool rest extends into the movable mould core; one end of the knife rest close to the movable die core is marked as a front end, the other end of the knife rest is marked as a tail end, a cutter is fixed at the front end of the knife rest, and the cutter penetrates through the movable die core and separates the die cavity from the buffer cavity. The utility model relates to a rationally, compact structure, runner when can will moulding plastics convenient and reliable cuts off, and the tangent plane is level and smooth, and fashioned product does not need secondary operation, has higher practical value.

Description

Stable form mould runner shearing mechanism

Technical Field

The utility model belongs to the technical field of injection mold, more specifically say, relate to a stable form mould runner shearing mechanism.

Background

An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting materials into plastic products of various shapes by using a molding die. In the process of moulding plastics, need control the volume of injecting into the material at every turn, in addition, the product all carries out the demolding simultaneously with the runner usually, and the runner that persists on with the product through subsequent cutting process is amputated again, has so both increased the cost, has reduced work efficiency again, and simultaneously, subsequent cutting work may cause the deformation of product or even damage to influence product quality.

Disclosure of Invention

Not enough to prior art exists, the utility model provides a stable form mould runner shearing mechanism.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a stable type die sprue shearing device comprises a fixed die plate, a fixed die block fixed on the fixed die plate, a fixed die core embedded in the fixed die block, a movable die plate, a movable die block fixed on the movable die plate and a movable die core embedded in the movable die block; when the die is closed, the fixed die core and the movable die core are matched to form a die cavity for product molding; one end of the die cavity is also connected with a buffer cavity, and the buffer cavity is arranged on one side of the fixed die core; a flow channel is led out from one side of the fixed mold core from the buffer cavity and is used for injecting injection molding liquid; an electric heating head is also embedded on the inner wall of the buffer cavity; a transverse tool rest hole is formed in the movable mould block, a tool rest can be arranged in the tool rest hole in a sliding manner, and the tool rest extends into the movable mould core; one end of the tool rest close to the movable mold core is marked as a front end, the other end of the tool rest is marked as a tail end, a cutter is fixed at the front end of the tool rest, and the cutter penetrates through the movable mold core and separates the mold cavity from the buffer cavity; in the knife rest hole, a reset pressure spring for withdrawing the knife rest is sleeved on the knife rest; a longitudinal sliding block hole is also formed in the movable module; a sliding block capable of longitudinally sliding is arranged in the sliding block hole, and the end part of the sliding block is wedge-shaped; the sliding block is driven by a telescopic oil cylinder arranged at the top of the movable module; the tail end of the knife rest extends out of the knife rest hole and into the sliding block hole, and the tail end of the knife rest is abutted to the end part of the sliding block in the shape of a wedge. The utility model discloses the during operation, after the die cavity is filled and reach the assigned pressure to the liquid of moulding plastics, flexible hydro-cylinder stretches out downwards and promotes the slider and move down, and slider top pushes away the motion of knife rest to the front end, and cutter synchronous motion thereupon separates die cavity and cushion chamber, accomplishes the cutting. In addition, the electric heating head is embedded in the inner wall of the buffer cavity to maintain the temperature of the buffer cavity so as to facilitate cutting. After the injection molding liquid in the mold cavity is solidified into a product, the telescopic oil cylinder is withdrawn upwards, and then the cutter is withdrawn towards the movable mold core under the action of the reset pressure spring.

The utility model discloses a further preferred scheme is, the terminal surface of the tail end of knife rest is the slope form, and the angle of inclination the same with the slider tip.

The utility model discloses a further preferred scheme is that, the middle section of knife rest is equipped with the cardboard for with the pressure spring joint that resets.

The utility model discloses a further preferred scheme is that, the one end that the knife rest hole is close to the movable mould core still is equipped with the apron that covers the knife rest hole, and apron central authorities leave the through-hole that supplies the knife rest to pass.

The utility model has the further preferred proposal that the whole cutter is in the shape of a long strip plate, the bottom surface of the cutter is parallel to the top surface and is in the horizontal direction, and the cutter head of the cutter is formed by connecting a vertical surface and an inclined surface; and the vertical surface is connected with one side of the bottom surface, and the inclined surface is connected with one side of the top surface. When the cutter with the shape is used for cutting, the injection molding liquid at the cutter head can return quickly, the cutting resistance is small, and the tangent plane is smooth.

The utility model discloses a further preferred scheme is, the contained angle of inclined plane and top surface is 150.

The utility model has the further preferable proposal that the section of the buffer cavity is semicircular, and a notch is arranged at the junction of the buffer cavity and the die cavity; the notch corresponds to the vertical surface of the cutter; when the cutter extends out, the vertical surface is just clamped into the notch, and the bottom surface seals the die cavity. The arrangement can enable the tangent plane to be smooth and flat without burrs or wiredrawing.

Has the advantages that: compared with the prior art, the utility model provides a stable form mould runner shearing mechanism, reasonable in design, compact structure, the runner when can will moulding plastics conveniently and reliably cuts off, and the tangent plane levels smoothly, and fashioned product does not need secondary operation, has higher practical value.

Drawings

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

FIG. 2 is a schematic view showing the extended state of the cutter according to the present invention;

FIG. 3 is a schematic view of the cutter return state of the present invention

Fig. 4 is a schematic view of the fit between the notch and the cutter of the present invention.

In the figure, a fixed die plate 01, a fixed die block 02, a fixed die core 03, a movable die plate 04, a movable die block 05, a movable die core 06, a die cavity 07, a buffer cavity 08, a flow channel 09, a tool rest hole 10, a tool rest 11, a cutter 12, a reset pressure spring 13, a sliding block hole 14, a sliding block 15, a telescopic oil cylinder 16 drive, an electric heating head 081, a notch 082, a cover plate 101, a clamping plate 111, a bottom surface 121, a top surface 122, a vertical surface 123 and an inclined surface 124.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A stable type mold gate shearing device is shown in figures 1 to 4 and comprises a fixed mold plate 01, a fixed mold block 02 fixed on the fixed mold plate 01, a fixed mold core 03 embedded in the fixed mold block 02, a movable mold plate 04, a movable mold block 05 fixed on the movable mold plate 04, and a movable mold core 06 embedded in the movable mold block 05; when the die is closed, the fixed die core 03 and the movable die core 06 are matched to form a die cavity 07 for product molding; one end of the die cavity 07 is also connected with a buffer cavity 08, and the buffer cavity 08 is arranged on one side of the fixed die core 03; a flow channel 09 is led out from one side of the fixed mold core 03 from the buffer cavity 08 and is used for injecting injection molding liquid; an electric heating head 081 is also embedded in the inner wall of the buffer cavity 08; a transverse tool rest hole 10 is formed in the movable die block 05, a tool rest 11 is slidably arranged in the tool rest hole 10, and the tool rest 11 extends into the movable die core 06; one end of the tool rest 11 close to the movable mold core 06 is marked as a front end, the other end is marked as a tail end, a cutter 12 is fixed at the front end of the tool rest 11, and the cutter 12 penetrates through the movable mold core 06 and separates the mold cavity 07 from the buffer cavity 08; in the knife rest hole 10, a reset pressure spring 13 for enabling the knife rest 11 to withdraw is also sleeved on the knife rest 11; a longitudinal slide block hole 14 is also formed in the movable module 05; a sliding block 15 capable of longitudinally sliding is arranged in the sliding block hole 14, and the end part of the sliding block 15 is wedge-shaped; the slide block 15 is driven by a telescopic oil cylinder 16 arranged at the top of the movable module 05; the tail end of the knife rest 11 extends out of the knife rest hole 10 and into the sliding block hole 14, and the tail end of the knife rest 11 is abutted to the end of the sliding block 15 in a wedge shape.

In this embodiment, the end surface of the trailing end of the tool holder 11 is inclined at the same angle as the end of the slider 15.

In this embodiment, the middle section of the tool holder 11 is provided with a clamping plate 111 for being clamped with the return compression spring 13.

In this embodiment, a cover plate 101 covering the tool holder hole 10 is further disposed at one end of the tool holder hole 10 close to the movable mold core 06, and a through hole for the tool holder 11 to pass through is reserved in the center of the cover plate 101.

In this embodiment, the cutter 12 is in the shape of a strip plate, the bottom surface 121 of the cutter 12 is parallel to the top surface 122 and is in the horizontal direction, and the cutter head of the cutter 12 is formed by connecting a vertical surface 123 and an inclined surface 124; the vertical surface 123 is connected to the bottom surface 121 side, and the inclined surface 124 is connected to the top surface 122 side.

In this embodiment, the inclined surface 124 and the top surface 122 form an angle of 150 °.

In this embodiment, the section of the buffer cavity 08 is semicircular, and a notch 082 is arranged at the junction between the buffer cavity 08 and the mold cavity 07; notch 082 corresponds to vertical face 123 of cutter 12; when the cutters 12 are extended, the vertical surfaces 123 snap into the notches 082 and the cavity 07 is closed by the bottom surfaces 121.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stable form mould runner shearing mechanism which characterized in that: the die comprises a fixed die plate (01), a fixed die block (02) fixed on the fixed die plate (01), a fixed die core (03) embedded in the fixed die block (02), a movable die plate (04), a movable die block (05) fixed on the movable die plate (04), and a movable die core (06) embedded in the movable die block (05); when the die is closed, the fixed die core (03) and the movable die core (06) are matched to form a die cavity (07) for product molding; one end of the die cavity (07) is also connected with a buffer cavity (08), and the buffer cavity (08) is arranged on one side of the fixed die core (03); a flow channel (09) is led out from one side of the fixed mold core (03) from the buffer cavity (08) and is used for injecting injection molding liquid; an electric heating head (081) is also embedded in the inner wall of the buffer cavity (08); a transverse tool rest hole (10) is formed in the movable module (05), a tool rest (11) is slidably arranged in the tool rest hole (10), and the tool rest (11) extends into the movable mold core (06); one end of the tool rest (11) close to the movable mold core (06) is marked as a front end, the other end of the tool rest is marked as a tail end, a cutter (12) is fixed at the front end of the tool rest (11), and the cutter (12) penetrates through the movable mold core (06) and separates the mold cavity (07) from the buffer cavity (08); in the knife rest hole (10), a reset pressure spring (13) for enabling the knife rest (11) to withdraw is further sleeved on the knife rest (11); a longitudinal sliding block hole (14) is also formed in the movable module (05); a sliding block (15) capable of longitudinally sliding is arranged in the sliding block hole (14), and the end part of the sliding block (15) is wedge-shaped; the sliding block (15) is driven by a telescopic oil cylinder (16) arranged at the top of the movable module (05); the tail end of the knife rest (11) extends out of the knife rest hole (10) and extends into the sliding block hole (14), and the tail end of the knife rest (11) is abutted to the end part of the sliding block (15) in a wedge shape.

2. A stabilized mold gate shearing device according to claim 1, wherein: the end face of the tail end of the tool rest (11) is inclined, and the inclination angle of the end face of the tool rest is the same as that of the end part of the sliding block (15).

3. A stabilized mold gate shearing device according to claim 1, wherein: and a clamping plate (111) is arranged in the middle section of the tool rest (11) and is used for being clamped with the reset pressure spring (13).

4. A stabilized mold gate shearing device according to claim 3, wherein: one end of the tool rest hole (10) close to the movable mold core (06) is further provided with a cover plate (101) covering the tool rest hole (10), and a through hole for the tool rest (11) to pass through is reserved in the center of the cover plate (101).

5. A stabilized mold gate shearing device according to claim 1, wherein: the cutter (12) is integrally in a strip plate shape, the bottom surface (121) and the top surface (122) of the cutter (12) are parallel and in a horizontal direction, and the cutter head of the cutter (12) is formed by connecting a vertical surface (123) and an inclined surface (124); the vertical surface (123) is connected to one side of the bottom surface (121), and the inclined surface (124) is connected to one side of the top surface (122).

6. A stabilized mold gate shearing device according to claim 5, wherein: the inclined surface (124) and the top surface (122) form an included angle of 150 degrees.

7. A stabilized mold gate shearing device according to claim 5, wherein: the section of the buffer cavity (08) is semicircular, and a notch (082) is arranged in the buffer cavity (08) and at the junction of the buffer cavity and the die cavity (07); the notch (082) corresponds to a vertical face (123) of the cutter (12); when the cutting knife (12) extends, the vertical surface (123) is just clamped into the notch (082), and the bottom surface (121) seals the die cavity (07).