CN217514425U - Die set - Google Patents

Abstract

The embodiment of the utility model discloses mould relates to the technical field of moulding plastics. The mold comprises a first mold body and a second mold body which are arranged in an enclosing mode to form an injection molding cavity. The mould is still including locating the sliding block set spare between first die body and the second die body, is equipped with the runner in the sliding block set spare, runner and injection molding chamber intercommunication, so make the injection molding material can get into the injection molding chamber through the runner, form the injection molding, the injection molding material in the runner solidifies and forms the solidification structure of connecting on the injection molding. The sliding block component can slide relative to the first die body and the second die body so as to separate the flow channel from the injection molding cavity. At this moment, the injection molding is fixed in the injection molding cavity by the restriction of the first die body and the second die body, and the solidification structure is fixed in the runner by the restriction of the sliding block component, so that when the runner is separated from the injection molding cavity, the solidification structure can be separated from the injection molding, and the injection molding does not move relative to the first die body and the second die body during separation, thereby avoiding the injection molding from deforming in the separation process.

Description

Die set

Technical Field

The utility model relates to a technical field that moulds plastics especially relates to a mould.

Background

The existing mold generally adopts a runner mechanism to inject injection molding materials into an injection molding cavity so as to form an injection molding part in the injection molding cavity. The injection molding is in the cooling process, and the injection molding that is arranged in sprue gate or runner body also can solidify thereupon, and the solidification structure of formation can be connected on the injection molding, and when ejecting by the mould behind the injection molding drawing of patterns, the solidification structure can be ejecting together with the injection molding. Consequently, follow-up needs artifically will solidify structure and injection molding separation and will the junction polish, increase the cost of labor, reduced production efficiency.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a mold, and the technical problem that the injection molding part needs to be separated from the solidification structure manually in the existing injection molding process is solved.

In order to solve the technical problem, the utility model discloses a technical scheme be:

the utility model provides a mold, includes first die body, second die body and sliding block set spare, first die body with the second die body is enclosed and is established the chamber of moulding plastics, first die body with the second die body can be followed first direction relative movement to realize the die that opens and shuts, sliding block set spare is located first die body with between the second die body, be equipped with the runner in the sliding block set spare, the runner with mould plastics the chamber intercommunication, sliding block set spare can be relative first die body with the second die body slides, so that the runner with mould plastics the chamber separation.

In some embodiments of the mold, the runner includes a body and a gate, the body communicates with the injection molding cavity through the gate, and the slider assembly includes a bending protrusion, and the bending protrusion bends toward one side of the runner opposite to the separation direction of the injection molding cavity to form the gate.

In some embodiments of the mold, the bending protrusion comprises a first plane and a second plane, the gate comprises a first end communicating with the injection cavity, the first plane and the first end are located in the same plane, the sliding direction of the sliding block assembly relative to the first mold body and the second mold body is parallel to the plane, the second plane intersects the first plane to form a tip located at the first end, and the tip is located in the plane.

In some embodiments of the mold, the slide assembly further comprises a guide projection located at and projecting into the gate.

In some embodiments of the mold, the guide projection includes a third plane parallel to an extending direction of the gate, and a guide surface extending from the body to the third plane.

In some embodiments of the mold, the slide block assembly includes a first slide block and a second slide block, the first slide block is disposed on the first mold body, the second slide block is disposed on the second mold body, the first slide block and the second slide block are enclosed to form the flow channel, and the mold further includes a driving block, the driving block can drive the first slide block to slide relative to the first mold body, and further drive the second slide block to slide relative to the second slide block through the first slide block, so that the flow channel is separated from the injection molding cavity.

In some embodiments of the mold, a first guide portion is disposed on the first slide block, a second guide portion is disposed on the second slide block, the first guide portion and the second guide portion can be attached to and relatively slide with each other during mold closing so that the second slide block is close to the first slide block to form the runner, and the first guide portion and the second guide portion can be attached to and relatively slide with each other during mold opening so that the second slide block is far from the first slide block, and the runner is exposed to the first slide block on the side of the first slide block.

In some embodiments of the mold, the slide block assembly further includes a first elastic member disposed between the second mold body and the second slide block, and when the mold is closed, the first elastic member can be compressed onto the second mold body by the second slide block, and when the mold is opened, the first elastic member can drive the second slide block so that the second guide portion can be engaged with the first guide portion.

In some embodiments of the mold, the slide block assembly further includes a first ejector and a second elastic member, the first slider is provided with a first through hole, the first through hole penetrates through the first slider, the first through hole has a second end communicated with the flow channel, the first ejector is accommodated in the first through hole, the second elastic member is accommodated in the first through hole and located between the first ejector and the first slider, the second elastic member can abut the first ejector against the first mold body, so that one end of the first ejector is complementary to the second end, the mold body further includes a first ejection mechanism, the first ejection mechanism is located in the first mold body, and the first ejection mechanism can drive the first ejector to compress the second elastic member and extend out from the second end after the mold is opened.

In some embodiments of the mold, the driving block is slidable relative to the first mold body, and a sliding direction of the driving block relative to the first mold body intersects with a sliding direction of the first sliding block relative to the first mold body.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the mould of above-mentioned scheme except possessing splendid injection moulding efficiency, it can also avoid artifical with injection molding and solidification structure separation. Specifically, the mold comprises a first mold body and a second mold body which enclose a forming injection molding cavity. The first die body and the second die body can move relatively along a first direction to realize opening and closing of the die. The mould is still including locating the sliding block set spare between first die body and the second die body, is equipped with the runner in the sliding block set spare, runner and injection molding chamber intercommunication, so make the injection molding material can get into the injection molding chamber through the runner, form the injection molding, simultaneously, the injection molding material in the runner solidifies and forms the solidification structure of connecting on the injection molding. Further, the slide block assembly can slide relative to the first mold body and the second mold body so as to separate the flow channel from the injection molding cavity. At the moment, the injection molding piece is limited by the first mold body and the second mold body and fixed in the injection molding cavity, and the solidification structure is limited by the sliding block assembly and fixed in the flow channel, so that when the flow channel is separated from the injection molding cavity, the solidification structure and the injection molding piece can be separated, and the injection molding piece does not move relative to the first mold body and the second mold body during separation, so that the injection molding piece is prevented from deforming in the separation process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of a mold in one embodiment;

FIG. 2 is a top view of the mold shown in FIG. 1;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of the portion B in FIG. 3;

FIG. 5 is an enlarged view of the portion C of FIG. 4;

FIG. 6 is a schematic view of the mold of FIG. 1 with the second mold body removed and the injection molded part and the solidified part in position;

FIG. 7 is an enlarged view of the portion D of FIG. 6;

FIG. 8 is an enlarged view of section E of FIG. 6;

FIG. 9 is a schematic view of the mold shown in FIG. 1 with the second mold body removed;

FIG. 10 is an enlarged view of the portion F of FIG. 9;

fig. 11 is an enlarged schematic view of the portion G in fig. 9.

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 efforts belong to the protection scope of the present invention.

Please refer to fig. 1 to 5 together, the mold of the present invention will now be described. The mold includes a first body 10, a second body 20, and a slide assembly 30. The first mold body 10 and the second mold body 20 enclose an injection molding cavity 40. The first and second bodies 10, 20 are relatively movable in a first direction to effect opening and closing of the mold. I.e., the first and second bodies 10, 20 are moved toward one another in a first direction to effect mold clamping. The first mold body 10 and the second mold body 20 are moved away from each other in a first direction to open the mold. Further, the slide block assembly 30 is arranged between the first mold body 10 and the second mold body 20, a flow passage 50 is arranged in the slide block assembly 30, the flow passage 50 is communicated with the injection molding cavity 40, and the slide block assembly 30 can slide relative to the first mold body 10 and the second mold body 20 so that the flow passage 50 is separated from the injection molding cavity 40. In this embodiment, the first direction is parallel to the direction indicated by the arrow X in fig. 1. The first mold body 10 may be a back mold and the second mold body 20 may be a front mold.

To sum up, implement the embodiment of the utility model provides a, will have following beneficial effect: the mould of above-mentioned scheme except possessing splendid injection moulding efficiency, it can also avoid the manual work to separate injection molding 2 and solidification structure 3. Specifically, the mold includes a first mold body 10 and a second mold body 20 that enclose an injection molding cavity 40. The first and second mold bodies 10, 20 are relatively movable in a first direction to open and close the mold. The mould still includes locating the slider assembly 30 between first die body 10 and the second die body 20, is equipped with runner 50 in the slider assembly 30, and runner 50 communicates with injection molding cavity 40, so makes the injection molding material can get into injection molding cavity 40 through runner 50, forms injection molding 2, and simultaneously, the injection molding material in runner 50 solidifies and forms the solidification structure 3 of connecting on injection molding 2. Further, the slide assembly 30 is slidable relative to the first mold block 10 and the second mold block 20 to separate the flow channel 50 from the injection cavity 40. At this time, the injection molding part 2 is limited by the first mold body 10 and the second mold body 20 and fixed in the injection molding cavity 40, and the solidification structure 3 is limited by the slide block assembly 30 and fixed in the flow channel 50, so that when the flow channel 50 is separated from the injection molding cavity 40, the solidification structure 3 can be separated from the injection molding part 2, and the injection molding part 2 is prevented from moving relative to the first mold body 10 and the second mold body 20 during separation, so that the injection molding part 2 is prevented from deforming during separation.

In one embodiment, as shown in fig. 4, 5, 9 and 10, the runner 50 includes a body 51 and a gate 52. The body 51 communicates with the injection cavity 40 through a gate 52. I.e. the injection moulding material can enter the injection moulding cavity 40 through the body 51 and the gate 52 in sequence. Further, the slider assembly 30 includes bent protrusions 311. The bent boss 311 is bent toward the side of the runner 50 opposite to the separation direction of the injection molding cavity 40 to form a gate 52. When protruding 311 buckle direction of buckling and injection molding 2 and the separation of solidification structure 3 promptly, slider component 30's moving direction is unanimous for can form the breach in protruding 311 department of buckling when the injection molding solidifies, thereby form the weak point between injection molding 2 and solidification structure 3, when conveniently driving slider component 30, injection molding 2 and solidification structure 3 form the crackle in breach department, and simultaneously, protruding 311 of buckling can be with the crack extension until injection molding 2 with solidify structure 3 complete separation. In this embodiment, the slide block assembly 30 is moved in the direction of arrow Y in fig. 4 to separate the flow passage 50 from the injection cavity 40, and therefore, the bent protrusion 311 is provided on the side of the flow passage 50 facing the direction of arrow Y. It will be appreciated that in other embodiments, the slide assembly 30 is moved in a direction away from the arrow Y in fig. 4 to separate the flow channel 50 from the injection molding cavity 40, and the bending protrusion 311 is required to be disposed on the side of the flow channel 50 opposite to the arrow Y.

In one embodiment, as shown in FIG. 5, bent boss 311 includes a first flat 3111 and a second flat 3112, and gate 52 includes a first end 521 in communication with injection mold cavity 40. The first plane 3111 is coplanar with the first end 521. The sliding direction of the slide block assembly 30 relative to the first die body 10 and the second die body 20 is parallel to the same plane. Second plane 3112 intersects first plane 3111 to form a tip 3113 at first end 521, and tip 3113 lies in the same plane. So can further inject the shape of breach, further promote injection molding 2 and solidify the separation effect between the structure 3, avoid producing the burr.

In one embodiment, with continued reference to FIG. 5, the slider assembly 30 further includes guide projections 321. Guide projection 321 is located at gate 52 and projects into gate 52. So can compress the injection molding material and pass through sprue 52 fast through the setting of guide protrusion 321 to reduce and buckle protruding 311 and hinder the influence of injection molding material to injection molding efficiency.

In one embodiment, with continued reference to fig. 5, the guide projection 321 includes a third plane 3211 and a guide plane 3212. The third plane 3211 is parallel to the direction of extension of the gate 52, i.e., the third plane 3211 is parallel to the direction of movement of the injection molding compound. The guide protrusion 321 protrudes into the gate 52, so that the radial dimension of the moving path of the injection molding material can be reduced, and the third plane 3211 can increase the length range of the reduction of the radial dimension of the moving path, so as to rectify the injection molding material again, and avoid the influence on the injection molding effect caused by the fluctuation generated by the reduction of the radial dimension of the moving path. Further, the guide surface 3212 extends from the body 51 toward the third plane 3211. This results in a more smooth flow of the injection molded part 2 into the reduced radial dimension of the aforementioned path of travel. In this embodiment, one end of the third plane 3211 extends to the first end 521, which serves to guide the molding compound into the injection cavity 40. Further, since the bending protrusion 311 and the guiding protrusion 321 are oppositely arranged to form the pouring gate 52, the size of the first end 521 is smaller, which is more beneficial for separating the injection molded part 2 from the solidification structure 3.

In one embodiment, the slider assembly 30 may be a unitary structure. In the present embodiment, the slide block assembly 30 may be a separate structure. Specifically, as shown in fig. 4, the slider assembly 30 includes a first slider 31 and a second slider 32. The first slide block 31 is disposed on the first mold block 10. The second slide 32 is disposed on the second mold block 20. The first slider 31 and the second slider 32 are enclosed to form a flow channel 50. In this embodiment, the bending protrusion 311 is located on the first slider 31, and the guiding protrusion 321 is located on the second slider 32. Further, the mold further includes a drive block 60. The driving block 60 can drive the first slide block 31 to slide relative to the first mold block 10, and then drive the second slide block 32 to slide relative to the second slide block 32 through the first slide block 31, so that the flow channel 50 is separated from the injection molding cavity 40. This enables the solidification structure 3 to be compressed at the beginning of separation of the injection molded part 2 and the solidification structure 3, in order to facilitate the generation of cracks between the injection molded part 2 and the solidification structure 3.

In one embodiment, as shown in fig. 4, the first slider 31 is provided with a first guide portion 312. The second slider 32 is provided with a second guide portion 322. During mold clamping, the first guide 312 and the second guide 322 can be brought into contact with each other and relatively slide so that the second slider 32 approaches the first slider 31 to form the runner 50. When the mold is opened, the first guide portion 312 and the second guide portion 322 can be engaged with each other and relatively slide, so that the second slider 32 is separated from the first slider 31, and the flow path 50 is exposed to the first slider 31 at the side of the first slider 31. The first guide part 312 and the second guide part 322 are matched to improve the stability of the matching between the first sliding block 31 and the second sliding block 32, and the size precision of the formed flow channel 50 is improved, so that the separation effect of the subsequent injection molding part 2 and the solidification structure 3 is improved. In this embodiment, the first guide portion 312 and the second guide portion 322 are in an insertion relationship during mold clamping, so as to perform a positioning function for mold clamping, and further ensure the dimensional accuracy of the runner 50, especially the dimensional accuracy of the sprue gate 52. Further, the abutting surfaces of the first guide portion 312 and the second guide portion 322 are inclined to the first direction.

In one embodiment, as shown in fig. 4, the slider assembly 30 further includes a first elastic member 33. The first elastic member 33 is disposed between the second mold body 20 and the second slide 32. When the mold is closed, the first elastic member 33 can be compressed onto the second mold 20 by the second slider 32, so that a driving force for driving the second slider 32 can be generated. When the mold is opened, the first elastic element 33 can drive the second slider 32, so that the second guide portion 322 can be attached to the first guide portion 312, and the first slider 31 and the second slider 32 can be stably separated. In this embodiment, the second slider 32 is provided with a sunken groove, and when the mold is closed, the second elastic member can be accommodated in the sunken groove when the second slider 32 compresses the second mold body 20, so that the side of the second slider 32 provided with the sunken groove can be attached to the second mold body 20, and the accuracy of the flow channel 50 is further improved. Meanwhile, the limit of the sinking groove can improve the accuracy of the elastic direction of the first elastic piece 33 driving the second sliding block 32, and the second sliding block 32 is prevented from deviating from the preset sliding path and being locked. Further, as shown in fig. 4, fig. 6 and fig. 7, a first press block 21 is disposed on the second die body 20, the first press block 21 can press the second slide block 32 on the second die body 20, so as to improve the stability of the sliding of the second slide block 32 relative to the second die body 20, a first sliding portion located between the first press block 21 and the second die body 20 is disposed on the second slide block 32, and the first press block 21 presses the second slide block 32 on the second die body 20 through the first sliding portion. In this embodiment, the first elastic member 33 is a spring, elastic rubber or elastic sheet.

In one embodiment, as shown in fig. 4, the slider assembly 30 further includes a first ejector member 34 and a second elastic member 35. The first slider 31 is provided with a first through hole. The first through hole penetrates the first slider 31. The first through hole has a second end communicating with the flow passage 50. The first ejector member 34 is received in the first through hole. The second elastic member 35 is accommodated in the first through hole and located between the first ejecting member 34 and the first slider 31, and the second elastic member 35 can abut the first ejecting member 34 against the first mold body 10, so that one end of the first ejecting member 34 is complementary to the second end. Namely, the first slide block 31, the second slide block 32 and the first ejector 34 are enclosed to form a flow channel 50.

Further, the mold body also includes a first ejection mechanism 70. The first ejection mechanism 70 is located in the first mold body 10. The first ejection mechanism 70 can drive the first ejection member 34 to compress the second elastic member 35 and extend from the second end after the mold is opened. After the first sliding block 31 and the second sliding block 32 are separated, the first ejection part 34 can be driven by the first ejection mechanism 70 to extend out from the second end so as to eject the solidification structure 3 out of the flow channel 50, so that the injection molding can be continued conveniently, and the production efficiency is improved. In this embodiment, a first limiting member 341 connected to the first slider 31 is disposed at an end of the first through hole away from the second end, and the first limiting member 341 is configured to prevent the first ejecting member 34 from coming out of the first through hole and ensure accuracy of the first ejecting member 34 complementing the second end. The first ejection mechanism 70 can drive the first ejection member 34 in a delayed manner, that is, after the injection molded part 2 is separated from the solidification structure 3 and the first slider 31 is separated from the second slider 32, the first ejection member 34 is driven, the first mold body 10 is provided with a first through groove, and the first ejection mechanism 70 is accommodated in the first through groove. After the injection molding 2 is separated from the solidification structure 3, the first through groove can be opposite to the first through hole, that is, the first through groove can be opposite to the first through hole by sliding the first sliding block 31 relative to the first mold body 10. In this embodiment, the second elastic element 35 is a spring, elastic rubber or elastic sheet.

In one embodiment, as shown in fig. 4, 6 and 9, the driving block 60 can slide relative to the first mold body 10, and the sliding direction of the driving block 60 relative to the first mold body 10 intersects with the sliding direction of the first slide block 31 relative to the first mold body 10, so that the slide block assembly 30 and the driving block 60 can be more compact, and the driving and driving away from too long can be avoided, and the space for avoiding the driving block 60 can be increased. In this embodiment, the sliding direction of the driving block 60 relative to the first mold block 10 is perpendicular to the sliding direction of the first slide block 31 relative to the first mold block 10. The driving block 60 is matched with the first sliding block 31 through a T-shaped groove and a T-shaped block 313 to drive the first sliding block 31 through the driving block 60, so that the driving stability is improved, and the integral volume of the die is reduced. In this embodiment, the T-shaped groove is located on the driving block 60, and the T-shaped block 313 is located on the first sliding block 31. Meanwhile, the first die body 10 is provided with the first guide part 11, the driving block 60 is provided with the second guide part 61, and the stability of the driving part sliding relative to the first die body 10 is improved through the matching of the first guide part 11 and the second guide part 61. In this embodiment, the first guide 11 is provided with a groove portion, and the second guide 61 is provided with a sliding protrusion engaged with the groove portion. Further, the first die body 10 is further provided with a second pressing block 12, the second pressing block 12 is located on one side of the driving block 60 away from the T-shaped groove and can press the driving block 60 on the first guiding portion 312 together with the T-shaped block 313, so that the sliding stability of the driving block 60 is ensured, and the stability of the driving block 60 driving the first sliding block 31 is further improved. In this embodiment, as shown in fig. 6 and 9, the mold further includes a driving unit 80, and the driving unit 80 is configured to drive the driving block 60 to slide relative to the first mold body 10. Meanwhile, the first mold body 10 is further provided with a limiting protrusion to limit the sliding range of the driving block 60.

In one embodiment, as shown in fig. 7 and 11, the mold further has a channel 314, the mold further includes a pouring mechanism 90, the first slide 31 and the second mold body 20 enclose the channel 314, and the pouring mechanism 90 communicates with an end of the body 51 away from the pouring gate 52 through the channel 314. After solidification of the injection molding compound, a solidified part 4 integrated with the solidification structure 3 can be formed in the channel 314. By providing channel 314, the casting mechanism 90 can be kept away from slider assembly 30, avoiding interference of casting mechanism 90 with the mold opening and closing and sliding of slider assembly 30.

In one embodiment, the slide block assembly 30 further includes a second ejector and a third elastic member, the first slide block 31 is provided with a second through hole, the second through hole penetrates through the first slide block 31, the second through hole has a third end 3141 communicated with the channel 314, the second ejector is accommodated in the second through hole, the third elastic member is accommodated in the second through hole and located between the second ejector and the first slide block 31, and the third elastic member can abut the second ejector against the first mold body 10, so that one end of the second ejector is complementary to the third end 3141, that is, the first slide block 31, the second mold body 20 and the second ejector surround to form the channel 314. Furthermore, the die body also comprises a second ejection mechanism, the second ejection mechanism is positioned in the first die body 10, and the second ejection mechanism can drive the second ejection member to compress the third elastic member and extend out of the third end 3141 after the die is opened. After the second mold body 20 and the first sliding block 31 are separated, the second ejection piece can be driven by the second ejection mechanism to extend out of the third end 3141 to abut against the solidification part 4, and the solidification structure 3 and the solidification part 4 are ejected out together with the first ejection piece 34, so that the injection molding is conveniently continued, and the production efficiency is improved. In this embodiment, a second limiting member connected to the first slider 31 is disposed at an end of the second through hole away from the third end 3141, and the second limiting member is used to prevent the second ejector from coming out of the second through hole and ensure the precision of the second ejector complementing the third end 3141. The second ejection mechanism can drive the second ejection piece in a delayed manner, namely, the second ejection piece is driven after the injection molding piece 2 is separated from the solidification structure 3 and the first slide block 31 is separated from the second slide block 32, the first mold body 10 is provided with a second through groove, and the second ejection mechanism is accommodated in the second through groove. After the injection molded part 2 is separated from the solidification structure 3, the second through-groove can be opposite to the second through-hole, that is, the second through-groove can be opposite to the second through-hole by sliding the first slide block 31 relative to the first mold block 10. In this embodiment, the third elastic member is a spring, elastic rubber or a spring sheet.

In one embodiment, as shown in FIG. 7, the second mold body 20 is provided with grooves. The groove extends from the channel 314 into the second body 20 and is disposed opposite the third end 3141 in the direction of movement of the second ejector. So make congeal can form lug 5 on the firmware 4 to improve congeal firmware 4 intensity, prevent that the second liftout piece will congeal firmware 4 when ejecting because of congeal firmware 4 intensity is not enough with its destruction, the piece pollution mould that forms. Meanwhile, the second end is formed at a position where the strength of the solidification structure 3 is high. In this embodiment, an included angle is formed between the channel 314 and the flow channel 50, and the second end is disposed near the joint of the channel 314 and the flow channel 50, so that the risk that the solidification structure 3 is damaged by the first ejection member 34 is reduced, and the structural integrity of the solidification structure 3 and the solidification member 4 after ejection is ensured.

In one embodiment, as shown in fig. 8, the mold further includes a limit switch 13 and a trigger 315. The limit switch 13 includes a first contact 131 and a second contact 132. The trigger 315 is disposed on the first slider 31. When the mold is closed, the trigger 315 contacts the first contact 131 to indicate that the mold closing is completed. When the runner 50 is separated from the injection molding cavity 40, the trigger 315 moves with the first slider 31 to contact the second contact 132 to indicate that the separation is complete. So move to different positions through first slider 31 and can indicate automatically whether to target in place the removal, conveniently carry out next process.

Further, the first contact 131 and the second contact 132 are respectively provided with a first roller 1311 and a second roller 1321, and the trigger 315 is provided with a first guide surface for contacting the first roller 1311 and a second guide surface for contacting the second roller 1321. In this embodiment, the triggering member 315 is located between the first roller 1311 and the second roller 1321. The first guide surface and the second guide surface are located on both sides of the trigger 315 in the sliding direction of the first slider 31. The first guide surface contacts the first roller 1311, thereby driving the first contact 131 to be opened. The second guide surface contacts the second roller 1321, thereby driving the second contact 132 to open. The above arrangement can reduce the impact of the trigger 315 on the first and second contacts 131 and 132, thereby improving the life of the first and second contacts 131 and 132. It is understood that in other embodiments, the first contact 131 and the second contact 132 may also be laser sensors, and the position indication of the first slider 31 is realized by the trigger 315 blocking the laser light emitted from the first contact 131 and the second contact 132.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, all equivalent variations of the present invention are intended to be covered by the present invention.

Claims (10)

1. The mold is characterized by comprising a first mold body, a second mold body and a sliding block assembly, wherein the first mold body and the second mold body are surrounded to form an injection molding cavity, the first mold body and the second mold body can move relatively along a first direction to realize opening and closing of the mold, the sliding block assembly is arranged between the first mold body and the second mold body, a flow channel is arranged in the sliding block assembly and communicated with the injection molding cavity, and the sliding block assembly can slide relative to the first mold body and the second mold body to enable the flow channel to be separated from the injection molding cavity.

2. The mold of claim 1, wherein the runner comprises a body and a gate, the body communicates with the injection molding cavity through the gate, and the slider assembly comprises a bending protrusion, and the bending protrusion is bent toward a side of the runner opposite to a separation direction of the injection molding cavity to form the gate.

3. The mold of claim 2, wherein said bending protrusion includes a first flat surface and a second flat surface, said gate includes a first end in communication with said injection molding cavity, said first flat surface is coplanar with said first end, a sliding direction of said slide assembly relative to said first and second mold bodies is parallel to said flat surfaces, said second flat surface intersects said first flat surface to form a tip at said first end, said tip is in said flat surfaces.

4. The mold of claim 2, wherein the slide assembly further comprises a guide projection located at and projecting into the gate.

5. The mold according to claim 4, wherein the guide projection comprises a third plane parallel to an extending direction of the gate and a guide surface extending from the body to the third plane.

6. The mold of claim 4, wherein the slide assembly comprises a first slide and a second slide, the first slide is disposed on the first mold body, the second slide is disposed on the second mold body, the first slide and the second slide enclose the flow channel, and the mold further comprises a driving block, the driving block can drive the first slide to slide relative to the first mold body, and further drive the second slide to slide relative to the second slide through the first slide, so that the flow channel is separated from the injection molding cavity.

7. The mold according to claim 6, wherein a first guide portion is provided on the first slide, and a second guide portion is provided on the second slide, and when the mold is closed, the first guide portion and the second guide portion can be brought into contact with each other and relatively slide to bring the second slide close to the first slide, thereby forming the runner, and when the mold is opened, the first guide portion and the second guide portion can be brought into contact with each other and relatively slide to bring the second slide away from the first slide, thereby exposing the runner to the first slide on the side of the first slide.

8. The mold of claim 7, wherein the slide assembly further comprises a first resilient member disposed between the second body and the second slide, the first resilient member being compressible by the second slide onto the second body when the mold is closed and being capable of driving the second slide to enable the second guide to engage the first guide when the mold is opened.

9. The mold of claim 8, wherein the slide assembly further comprises a first ejector and a second resilient member, the first slide block is provided with a first through hole which penetrates through the first slide block and is provided with a second end communicated with the flow passage, the first ejecting piece is accommodated in the first through hole, the second elastic piece is accommodated in the first through hole and is positioned between the first ejecting piece and the first sliding block, the second elastic piece can enable the first ejecting piece to be abutted against the first die body, such that one end of the first ejector member is complementary to the second end, the mold block further comprising a first ejector mechanism, the first ejection mechanism is located on the first die body and can drive the first ejection piece to compress the second elastic piece and extend out of the second end after the die is opened.

10. The mold of claim 6, wherein the drive block is slidable relative to the first mold body, wherein a direction of sliding movement of the drive block relative to the first mold body intersects a direction of sliding movement of the first slide relative to the first mold body.

Images