CN210910959U - Printer pressurization tooth mould - Google Patents

Abstract

The utility model belongs to the technical field of molds, in particular to a printer pressurizing tooth mold, which comprises a fixed mold plate, a fixed mold core, a movable mold plate, a movable mold core and an injection mold main frame body; a fixed cavity and a movable cavity are respectively arranged between the fixed die core and the movable die core, and a main runner is arranged on the injection die main frame body; the fixed cavity is matched with the tooth-shaped part at the front part of the pressurizing tooth, and the movable cavity is matched with the mounting part at the rear part of the pressurizing tooth; a sub-channel communicated with the main channel is arranged between the fixed die core and the movable die core, and two latent channels are obliquely dug in the movable die core at the sub-channel; the movable mould core is provided with two feed holes at the position of the movable mould cavity in a penetrating way, and the two latent flow passages are respectively communicated with the two feed holes; the injection mold main frame body is provided with two first ejector pins which respectively extend into the two feeding holes; the push-out end of the first ejector pin is close to the latent runner and can push the pressurizing tooth to be separated from the driven cavity during film discharging; the pressurizing tooth mold of the printer can ensure that the pressurizing tooth is smoothly demoulded and stably processed.

Description

Printer pressurization tooth mould

Technical Field

The utility model belongs to the technical field of the mould, especially, relate to a printer pressurization tooth mould.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. The blank is formed into a tool with a specific shape and size under the action of external force.

One end of the printer pressurizing tooth is provided with a sawtooth-shaped tooth part, the sawtooth-shaped tooth part is structurally influenced, when a die is subjected to film discharging, the sawtooth-shaped tooth part is easily adhered to a problem to be solved in a shaping cavity, and the printer pressurizing tooth is difficult to demould, so that the printer pressurizing tooth cannot be normally processed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a printer pressurization tooth mould aims at solving the technical problem of the printer pressurization tooth drawing of patterns difficulty among the prior art.

In order to achieve the above object, an embodiment of the present invention provides a printer pressing tooth mold, which includes a fixed mold plate, a fixed mold core, a movable mold plate, a movable mold core and an injection mold main frame body; the fixed die plate and the movable die plate are respectively arranged in the injection die main body, the fixed die core and the movable die core are respectively arranged in the fixed die plate and the movable die plate, a fixed die cavity and a movable die cavity are respectively arranged between the fixed die core and the movable die core, and a main runner is arranged on the injection die main frame; the method is characterized in that: the fixed cavity is matched with the tooth-shaped part at the front part of the pressurizing tooth, and the movable cavity is matched with the mounting part at the rear part of the pressurizing tooth; a sub-channel communicated with the main channel is arranged between the fixed die core and the movable die core, and two latent channels are obliquely dug in the movable die core at the sub-channel; the movable mould core is provided with two feeding holes at the movable mould cavity in a penetrating way, and the two latent flow passages are respectively communicated with the two feeding holes; two first ejector pins are arranged on the injection mold main frame body and respectively extend into the two feeding holes; the push-out end of the first ejector pin is close to the latent runner and can push the pressurizing tooth to be separated from the movable cavity during film discharging.

Optionally, a second thimble hole penetrates through the movable cavity between the two feeding holes; a second thimble is arranged on the injection mold main frame body and extends into the second thimble hole; the pushing end of the second ejector pin is flush with the second ejector pin hole, and the pressing tooth can be pushed to be separated from the movable cavity during film discharging.

Optionally, the sub-runners are arranged in a U shape; the sub-runners are respectively provided with the latent runners at two ends of the U shape, and the sub-runners are communicated with the main runner in the middle of the U shape.

Optionally, a plurality of third thimble holes are formed in the movable mold core in the diversion channel in a penetrating manner; a plurality of third ejector pins are arranged on the injection mold main frame body, and each third ejector pin correspondingly extends into one third ejector pin hole; the pushing end of the third ejector pin is flush with the third ejector pin hole, and the shunting channel can be pushed to be separated from the movable cavity during film discharging.

Optionally, the fixed mold core comprises a fixed mold core mounting plate, a first insert and a second insert; a first insert mounting hole is formed in the fixed die core mounting plate in a penetrating mode, and the first insert is accommodated in the first insert mounting hole; two second insert mounting holes are arranged on the first insert in a penetrating manner side by side; one end of the second insert is provided with a sawtooth-shaped end matched with the tooth-shaped part of the pressurizing tooth, and the two second inserts are respectively accommodated in the mounting holes of the two second inserts, so that the first insert forms the fixed cavity at the mounting holes of the two second inserts.

Optionally, a first limiting groove is formed in one end, far away from the fixed cavity, of the first insert mounting hole, and a first limiting block is convexly arranged at one end, far away from the fixed cavity, of the first insert; the first limiting block is mounted in the first limiting groove in an adaptive mode.

Optionally, a second limiting groove is dug in one end, far away from the fixed cavity, of each of the two second insert mounting holes, and a second limiting block is convexly arranged at one end, far away from the fixed cavity, of each of the two second inserts; the two second limiting blocks are respectively installed in the two second limiting grooves in an adaptive mode.

Optionally, a movable mold core mounting groove matched with the movable mold core is formed in the middle of the movable mold plate in an excavating mode; the movable mold core is accommodated in the movable mold core mounting groove and is fixedly mounted on the movable mold plate through a plurality of second bolts.

Optionally, a fixed mold core mounting groove matched with the fixed mold core is formed in the middle of the fixed mold plate in an excavating mode; the fixed mold core is accommodated in the fixed mold core mounting groove and is fixedly mounted on the fixed mold plate through a plurality of first bolts.

Optionally, the fixed die core and the movable die core are both provided with cooling water channels.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the printer pressurization tooth mould have one of following technological effect at least: during injection molding, plastic enters the fixed cavity and the movable cavity through the main runner, the sub-runner, the two latent runners and the two feed holes in sequence, so that the fixed cavity and the movable cavity are filled with the plastic; during the die sinking, the cover half benevolence with the in-process that movable mould benevolence separated, because the rear portion of fashioned pressurization tooth with the feed port the subchannel with the fashioned runner plastic of sprue department is even mutually, can stimulate the profile of tooth portion of fashioned pressurization tooth to follow the design intracavity and break away from, makes the profile of tooth portion of pressurization tooth is from the demolding of design intracavity smoothly, then the first thimble of injection mold main part the second thimble with the third thimble pushes away respectively the fashioned runner plastic of feed port department the installation department of pressurization tooth with the fashioned runner plastic of sprue department follows runner plastic of runner department the runner plastic of runner is followed movable mould benevolence is last to be released, makes simultaneously the pressurization tooth with the separation of the fashioned runner plastic of sprue department makes the pressurization tooth follows smoothly the drawing of patterns in the movable mould intracavity, accomplishes the processing to the pressurization tooth. Therefore, the printer pressurizing tooth die can enable the pressurizing tooth to be smoothly demoulded, and the stable processing of the pressurizing tooth is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a printer pressing tooth mold according to an embodiment of the present invention.

Fig. 2 is an exploded view of a printer pressure tooth mold according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a front mold of a pressing tooth mold of a printer according to an embodiment of the present invention.

Fig. 4 is an exploded view of a core insert of a press tooth mold for a printer according to an embodiment of the present invention.

Fig. 5 is another exploded view of a core insert of a press tooth mold for a printer according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a rear mold structure of a pressing tooth mold of a printer according to an embodiment of the present invention.

Fig. 7 is an enlarged view of the point B in fig. 7 according to the present invention.

Fig. 8 is a sectional view taken along the line a-a in fig. 7 according to the present invention.

Fig. 9 is a schematic structural view of a pressing tooth mold of a printer according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the injection mold comprises a fixed mold plate 10, a fixed mold core 20, a fixed mold cavity 200, a fixed mold core mounting plate 210, a first insert mounting hole 211, a first limit groove 212, a first insert 220, a second insert mounting hole 221, a first limit block 222, a second limit groove 223, a second insert 230, a sawtooth-shaped end 231, a second limit block 232, a branch flow passage 240, a movable mold plate 30, a movable mold core 40, a movable mold cavity 400, a latent flow passage 410, a feed hole 420, a third thimble hole 430, a second thimble hole 440, an injection mold main frame body 50, a main flow passage 51, a first thimble 52, a push plate 53, a third thimble 54, a second thimble 55, a pressurizing tooth 60, a tooth-shaped portion 61 and a mounting portion 62.

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 by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the 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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1 to 3, a printer pressure tooth mold is provided, which includes a fixed mold plate 10, a fixed mold core 20, a movable mold plate 30, a movable mold core 40, and an injection mold main frame 50.

Wherein, the injection mold body frame body 50 is the common injection mold body frame body among the injection mold, for ripe all prior art, often uses in the injection moulding of all kinds of parts, so to its structure the utility model discloses do not carry out the repeated description one by one here.

The fixed mold plate 10 and the movable mold plate 30 are respectively installed in the injection mold main body 50, the fixed mold core 20 and the movable mold core 40 are respectively installed in the fixed mold plate 10 and the movable mold plate 30, a fixed mold cavity 200 and a movable mold cavity 400 are respectively arranged between the fixed mold core 20 and the movable mold core 40, and a main runner 51 is arranged on the injection mold main frame 50. Cooling water channels (not shown) are respectively formed on the cavity plate 20 and the cavity plate 40, so that the pressing teeth 60 formed in the cavity plate 200 and the cavity plate 400 are rapidly cooled.

Referring to fig. 9, the pressing tooth 60 includes a tooth portion 61 and a mounting portion 62 connected to the tooth portion 61.

Referring to fig. 3, 6, 7 and 8, the fixed cavity 200 is adapted to the tooth-shaped portion 61 at the front of the pressing tooth 60, and the movable cavity 400 is adapted to the mounting portion 62 at the rear of the pressing tooth 60. A sub-channel 240 communicating with the main channel 51 is arranged between the cavity insert 20 and the cavity insert 40, and two latent channels 410 are obliquely dug in the cavity insert 40 at the sub-channel 240; specifically, in this embodiment, the latent runner 410 has a conical shape, which facilitates the flow of plastic and demolding. The movable mold core 40 is provided with two feed holes 420 at the movable mold cavity 400, and the two latent runners 410 are respectively communicated with the two feed holes 420. The injection mold main frame body 50 is provided with two first ejector pins 52, and the two first ejector pins 52 respectively extend into the two feed holes 420; specifically, the mounting end of the first thimble 52 is fixedly mounted on the pushing plate 53 of the injection mold main frame. The pushing end of the first ejector pin 52 is close to the latent runner 410 and can push the pressing tooth 60 to be separated from the movable die cavity 400 during film discharging.

Referring to fig. 6 to 8, a plurality of third pin holes 430 penetrate through the movable die core 400 at the diversion channel 240. A plurality of third ejector pins 54 are arranged on the injection mold main frame body 50, and each third ejector pin 54 correspondingly extends into one third ejector pin hole 430. Specifically, in this embodiment, three third ejector pins 54 are provided, and the three third ejector pins 54 are uniformly distributed at the diversion channel 240. The mounting end of the third thimble 54 is fixedly mounted on the pushing plate 53 of the injection mold main frame 50. The pushing end of the third thimble 54 is flush with the third thimble hole 430, and can push the runner 240 to separate from the movable cavity 400 during film discharging. The three third ejector pins 54 push the runner plastic molded at the sub-runner 240, so as to ensure that the runner plastic molded at the sub-runner 240 can be smoothly separated from the cavity 40.

Further, referring to fig. 6 to 8, a second thimble hole 440 is formed in the movable die cavity 400 between the two feed holes 420. A second thimble 55 is arranged on the injection mold main frame body 50, and the second thimble 55 extends into the second thimble hole 440; specifically, the mounting end of the second thimble 55 is fixedly mounted on the pushing plate 53 of the injection mold main frame body 50. The pushing end of the second ejector pin 55 is flush with the second ejector pin hole 440, and can push the pressing tooth 60 to be separated from the movable die cavity 400 during film discharging. The arrangement of the second ejector pin 55 is increased, and when the mold is opened, the second ejector pin 55 and the first ejector pin 52 simultaneously push the pressurizing tooth 60, so that the pressurizing tooth 60 can be smoothly separated from the movable mold cavity 400, and the mold can have enough demolding force.

Further, referring to fig. 6 to 8, the sub-runners 240 are disposed in a "U" shape. The sub-runners 240 are provided with the latent runners 410 dug at both ends of the U-shape, and the sub-runners 240 are communicated with the main runner 51 at the middle of the U-shape. The U-shaped runner 240 facilitates uniform and rapid flow of plastic into the fixed cavity 200 and the movable cavity 400.

During injection molding, plastic enters the fixed cavity 200 and the movable cavity 400 through the main runner 51, the sub-runner 240, the two latent runners 410 and the two feeding holes 420 in sequence, so that the fixed cavity 200 and the movable cavity 400 are filled with the plastic; when the mold is opened, in the process of separating the stationary mold core 200 from the moving mold core 400, since the rear portion of the molded pressing tooth 60 is adhered to the feed hole 420, the runner 240 and the runner plastic molded in the main runner 51, the tooth-shaped portion 61 of the molded pressing tooth 60 is pulled to be separated from the stationary mold cavity 200, so that the tooth-shaped portion 61 of the pressing tooth 60 is smoothly released from the molding cavity 200, and then the first thimble 52, the second thimble 55 and the third thimble 54 of the injection mold main body 50 respectively push the runner plastic molded in the feed hole 420, the mounting portion 62 of the pressing tooth 60 and the runner plastic molded in the runner 240, so as to push the runner plastic and the pressing tooth 60 out of the moving mold core 40, and simultaneously separate the pressing tooth 60 from the runner plastic molded in the runner 240, so that the pressing tooth 60 is smoothly released from the moving mold cavity 400, the pressing teeth 60 are finished. Therefore, the press tooth die of the printer can smoothly release the press tooth 60, and ensures stable processing of the press tooth 60.

Referring to fig. 3 to 5, the cavity plate 20 includes a cavity plate mounting plate 210, a first insert 220 and a second insert 230. The core mounting plate 210 has a first insert mounting hole 211 formed therethrough, and the first insert 220 is received in the first insert mounting hole 211. Two second insert mounting holes 221 are arranged in the first insert 220 in a row and penetrate through the first insert. One end of the second insert 230 is provided with a sawtooth end 231 adapted to the tooth-shaped portion 61 of the pressing tooth 60, and the two second inserts 230 are respectively accommodated in the two second insert mounting holes 221, so that the first insert 220 forms the fixed cavity 200 at the two second insert mounting holes 221. The serrated end 231 is machined on the second insert 230, the second insert 230 is assembled to the first insert 220, and finally the second insert 230 and the first insert 220 are assembled to the stationary core mounting plate 210, so that the machining difficulty of the stationary cavity 200 can be reduced, and the dimensional accuracy of the stationary cavity 200 can be increased.

Further, referring to fig. 3 to 5, the first insert mounting hole 211 is provided with a first limiting groove 212 at an end away from the fixed cavity 200, and the first insert 220 is convexly provided with a first limiting block 222 at an end away from the fixed cavity 200. The first stopper 222 is adapted to fit into the first stopper groove 212. The first insert 220 passes through the first insert mounting hole 211, the first stopper 222 is fittingly mounted in the first stopper groove 212, and the cavity plate 10 is mounted with the cavity plate 20, so that the first insert 220 is fixedly mounted on the cavity plate 20.

Further, referring to fig. 3 to 5, a second limiting groove 223 is dug at one end of each of the second insert mounting holes 221 far away from the fixed cavity, and a second limiting block 232 is convexly disposed at one end of each of the second inserts 230 far away from the fixed cavity. The two second limiting blocks 232 are respectively installed in the two second limiting grooves 223 in an adaptive manner. The second insert 230 passes through the second insert mounting hole 221, the second stopper 232 is fittingly mounted in the second stopper groove 223, and the cavity plate 20 is mounted on the cavity plate 10, so that the second insert 230 and the first insert 220 are fixedly mounted on the cavity plate 20, and the mounting manner is simple and stable, and the second insert 230 is conveniently removed for maintenance and replacement.

And a fixed mold core mounting groove matched with the fixed mold core 20 is formed in the middle of the fixed mold plate 10 in an excavating mode. The stationary mold core 10 is accommodated in the stationary mold core mounting groove and is fixedly mounted on the stationary mold plate by a plurality of first bolts. The cavity plate 20 is fixedly installed in the cavity plate installation groove of the cavity plate 10 by a plurality of first bolts, so that the cavity plate 20 is convenient to install, and the first insert 220 and the second insert 230 are convenient to be taken down from the cavity plate 20 for maintenance and replacement. Specifically, the fixed die plate 10 is provided with a first bolt through hole, and the first bolt penetrates through the first bolt through hole and is in threaded connection with the fixed die core 20.

Similarly, a movable mold core mounting groove matched with the movable mold core 40 is dug in the middle of the movable mold plate 30. The movable mold core 40 is accommodated in the movable mold core mounting groove and is fixedly mounted on the movable mold plate 30 through a plurality of second bolts, so that the movable mold core 40 is convenient to mount.

Further, the rear end of the just-demolded pressing tooth 60 is connected with the runner plastic formed at the feeding hole 420, and the runner plastic formed at the feeding hole 420 can be cut off from the pressing tooth 60 by adopting a shearing mode, so that the complete pressing tooth 60 can be obtained finally.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims (10)

1. A printer pressurizing tooth mold comprises a fixed mold plate, a fixed mold core, a movable mold plate, a movable mold core and an injection mold main frame body; the fixed die plate and the movable die plate are respectively arranged in the injection die main body, the fixed die core and the movable die core are respectively arranged in the fixed die plate and the movable die plate, a fixed die cavity and a movable die cavity are respectively arranged between the fixed die core and the movable die core, and a main runner is arranged on the injection die main frame; the method is characterized in that: the fixed cavity is matched with the tooth-shaped part at the front part of the pressurizing tooth, and the movable cavity is matched with the mounting part at the rear part of the pressurizing tooth; a sub-channel communicated with the main channel is arranged between the fixed die core and the movable die core, and two latent channels are obliquely dug in the movable die core at the sub-channel; the movable mould core is provided with two feeding holes at the movable mould cavity in a penetrating way, and the two latent flow passages are respectively communicated with the two feeding holes; two first ejector pins are arranged on the injection mold main frame body and respectively extend into the two feeding holes; the push-out end of the first ejector pin is close to the latent runner and can push the pressurizing tooth to be separated from the movable cavity during film discharging.

2. The printer pressure tooth die of claim 1, wherein: a second thimble hole penetrates through the movable cavity between the two feeding holes; a second thimble is arranged on the injection mold main frame body and extends into the second thimble hole; the pushing end of the second ejector pin is flush with the second ejector pin hole, and the pressing tooth can be pushed to be separated from the movable cavity during film discharging.

3. The printer pressure tooth die of claim 1, wherein: the sub-runners are arranged in a U shape; the sub-runners are respectively provided with the latent runners at two ends of the U shape, and the sub-runners are communicated with the main runner in the middle of the U shape.

4. The printer pressure tooth die of claim 3, wherein: the movable mould core is provided with a plurality of third thimble holes at the shunting passage in a penetrating way; a plurality of third ejector pins are arranged on the injection mold main frame body, and each third ejector pin correspondingly extends into one third ejector pin hole; the pushing end of the third ejector pin is flush with the third ejector pin hole, and the shunting channel can be pushed to be separated from the movable cavity during film discharging.

5. The printer pressure tooth die of claim 1, wherein: the fixed mold core comprises a fixed mold core mounting plate, a first insert and a second insert; a first insert mounting hole is formed in the fixed die core mounting plate in a penetrating mode, and the first insert is accommodated in the first insert mounting hole; two second insert mounting holes are arranged on the first insert in a penetrating manner side by side; one end of the second insert is provided with a sawtooth-shaped end matched with the tooth-shaped part of the pressurizing tooth, and the two second inserts are respectively accommodated in the mounting holes of the two second inserts, so that the first insert forms the fixed cavity at the mounting holes of the two second inserts.

6. The printer pressure tooth die of claim 5, wherein: a first limiting groove is formed in one end, far away from the fixed cavity, of the first insert mounting hole, and a first limiting block is convexly arranged at one end, far away from the fixed cavity, of the first insert; the first limiting block is mounted in the first limiting groove in an adaptive mode.

7. The printer pressure tooth die of claim 5, wherein: a second limiting groove is dug in one end, far away from the fixed cavity, of each of the two second insert mounting holes, and a second limiting block is convexly arranged at one end, far away from the fixed cavity, of each of the two second inserts; the two second limiting blocks are respectively installed in the two second limiting grooves in an adaptive mode.

8. The printer pressure tooth die of claim 1, wherein: a fixed die core mounting groove matched with the fixed die core is formed in the middle of the fixed die plate in an excavating mode; the fixed mold core is accommodated in the fixed mold core mounting groove and is fixedly mounted on the fixed mold plate through a plurality of first bolts.

9. The printer pressure tooth die of claim 1, wherein: a movable mold core mounting groove matched with the movable mold core is formed in the middle of the movable mold plate in an excavating mode; the movable mold core is accommodated in the movable mold core mounting groove and is fixedly mounted on the movable mold plate through a plurality of second bolts.

10. The printer pressure tooth die of claim 1, wherein: and cooling water channels are arranged on the fixed die core and the movable die core.

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