CN112622200A

CN112622200A - Machining die for producing vehicle door handrail decoration strip base

Info

Publication number: CN112622200A
Application number: CN202110263163.9A
Authority: CN
Inventors: 黄洁钦; 干洋洪; 黄金申; 黄宏辉; 吴照生
Original assignee: Ningbo Fareast Mould Making Co ltd
Current assignee: Ningbo Fareast Mould Making Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-04-09
Anticipated expiration: 2041-03-11
Also published as: CN112622200B

Abstract

The application relates to a processing mold for producing a base of a vehicle door handrail decoration strip, which comprises a core plate, a cavity plate and a hot runner plate, wherein a first core pulling assembly is arranged on the core plate, a second core pulling assembly is arranged on the cavity plate, the first core pulling assembly comprises a first sliding block, and a positioning block inserted in a clamping groove is arranged on the upper end surface of the first sliding block; the front end of the second sliding block is inserted into the annular plate and is used for pulling the first sliding block to be separated from the clamping groove; the third sliding block is inserted in the decoration strip base and is separated from the decoration strip base after being pulled by the second sliding block; the driving oil cylinder pulls the second sliding block, and the elastic locking block is arranged on the core plate and used for limiting the sliding of the third sliding block; the second core pulling assembly comprises a shaping block and a drawing block, and the upper end of the drawing block is fixed on the hot runner plate. This application has the mold processing and can realize loosing core in a plurality of directions to the ornamental strip base, and then avoids causing the effect of drawing the damage to ornamental strip base overall structure.

Description

Machining die for producing vehicle door handrail decoration strip base

Technical Field

The application relates to the field of auto-parts production moulds, in particular to a processing mould for producing a base of a vehicle door handrail decoration strip.

Background

At present, along with the improvement of living standard and the acceleration of rhythm, the automobile has become indispensable vehicle in life, and in order to guarantee the whole neatness of the inside of the automobile, the automobile is generally required to be provided with a decorative plate except for a window part.

For example, in the door handle trim base 46 disclosed in fig. 2, since one or more plastic cases need to be fixed to the trim base 46, it is necessary to provide an annular plate 47 in the recessed portion of the trim base 46, and to provide a catching groove 48 in a wall of the annular plate 47.

In view of the above-mentioned related art, since the fastening groove is disposed in the inner space of the base of the trim strip, and such products are generally produced by an injection mold, the inventor believes that the annular plate with the fastening groove is easily torn when the core plate and the cavity plate are subjected to core pulling.

Disclosure of Invention

In order to avoid causing the product to tear when loosing core, this application provides a mold processing for producing door handrail ornamental strip base.

The application provides a mold processing for producing door handrail ornamental strip base adopts following technical scheme:

a processing mold for producing a base of a vehicle door handrail decoration strip comprises a core plate, a cavity plate and a hot runner plate, wherein a first core-pulling assembly is arranged on the core plate, a second core-pulling assembly is arranged on the cavity plate,

the first loose core assembly comprises:

the upper end surface of the first sliding block is provided with a positioning block inserted in the clamping groove;

the front end of the second sliding block is inserted into the annular plate and used for pulling the first sliding block to be separated from the clamping groove;

the third sliding block is inserted in the decoration strip base and is separated from the decoration strip base after being pulled by the second sliding block;

the driving oil cylinder pulls the second sliding block, and the elastic locking block is arranged on the core plate and used for limiting the third sliding block to slide;

the second loose core assembly comprises: the hot runner plate comprises a shaping block and a drawing block, wherein the shaping block is inserted at the other end of the annular plate, the drawing block is used for controlling the shaping block to be separated from the annular plate, and the upper end of the drawing block is fixed on the hot runner plate.

The technical scheme is adopted: when the core plate and the cavity plate are closed, molten plastic is injected between the core plate and the cavity plate through the hot runner to be cooled and formed into the vehicle door trim strip base, when the formed trim strip base needs to be taken out, the hot runner plate drives the cavity plate to be separated from the core plate, meanwhile, the second drawing block is drawn by the hot runner plate, and the drawing block draws the shaping block to be drawn out from the annular plate in the trim strip base. And then, a driving oil cylinder in the first core pulling assembly operates to pull the second sliding block to move on the third sliding block, on one hand, the second sliding block is moved out of the annular plate, and simultaneously the first sliding block is pulled to force the positioning block on the first sliding block to fall off from the clamping groove, and finally, the second sliding block drives the third sliding block to move on the core plate, so that the third sliding block is separated from the decoration strip base, and finally, the decoration strip base is separated, an elastic locking block arranged on the core plate plays a role in positioning the third sliding block on the core plate, and the phenomenon that the decoration strip base is formed after the third sliding block excessively slides is avoided. The step-by-step movement of the first sliding block, the second sliding block and the third sliding block can effectively avoid the pulling crack of the product caused by the mold during core pulling.

Optionally, the elastic locking block includes an insertion block inserted into the core plate, a locking bolt for positioning the insertion block, and an elastic member located between the lower end of the insertion block and the core plate, the third slider is slidably disposed on the core plate and provided with a sliding hole sleeved on the insertion block, and a side end surface of the insertion block is limited on a hole wall of the sliding hole.

The technical scheme is adopted: the upper end of the plug-in block in the elastic locking block protrudes out of the upper end face of the core plate, so that when the third sliding block slides on the core plate, the plug-in block can limit the hole wall of the sliding hole, and the maximum propelling distance of the third sliding block is ensured. The arrangement of the insertion block can realize that the first slide block and the second slide block continue to advance on the third slide block when the driving oil cylinder continues to advance.

Optionally, the front end of the second slider is inserted into the front end of the third slider and faces the sliding hole, a driving block is arranged in the sliding hole, a first guide inclined plane is arranged at the lower end of the driving block, a second guide inclined plane which can be tightly abutted against the first guide inclined plane is arranged at the upper end of the insertion block, and the driving block moves onto the hole wall of the sliding hole and then drives the third slider to move.

The technical scheme is adopted: the second sliding block can be inserted onto the third sliding block continuously through the driving oil cylinder after the third sliding block is limited. When the whole first core pulling assembly needs to be removed, the driving oil cylinder drives the second sliding block to move on the third sliding block, after the lower end of the driving block in the second sliding block is abutted to the inserting block, the driving block can press the inserting block downwards, the driving block can continue to slide on the upper end face of the inserting block, and finally after the end face of the driving block moves to the hole wall of the sliding hole, the driving block drives the whole third sliding block to move on the core plate.

Optionally, an insertion hole for the second slider to be inserted is formed in the front end of the third slider, a sliding groove which is obliquely arranged is formed in the outer end face of the second slider, the first slider is arranged in an L shape, the horizontal section of the first slider slides on the sliding groove in a limiting manner, a positioning block is arranged on the upper end face of the horizontal section of the first slider, and a non-slip block which is used for positioning the vertical section of the first slider and then forces the first slider to slide on the sliding groove is arranged on the insertion hole.

The technical scheme is adopted: the horizontal segment of first slider slides and sets up on the sliding groove that the second slider set up, on the other hand has restricted first slider to shift out from in the plug-in hole owing to the setting of limited slip piece in the plug-in hole, and then when the second slider moves continuously, first slider can only be compelled to move on the sliding groove, because the setting of sliding groove slope, make the locating piece on the first slider can take place ascending removal in vertical direction for the buckle groove, the structure that the locating piece can drop and can not stimulate whole annular plate in the buckle inslot promptly, and then effectively avoided tearing of annular plate.

Optionally, the insertion hole includes a connection hole for inserting the anti-slip block, the anti-slip block is fixed in the connection hole through a connection bolt, the lower end face of the anti-slip block is positioned on the outer end face of the second slider, and the front end face of the anti-slip block abuts against the end face of the vertical section of the first slider.

The technical scheme is adopted: the non-slip block can be connected with the connecting hole in the inserting hole in a detachable mode through the connecting bolt, on one hand, the first sliding block is convenient to place in the inserting hole, on the other hand, the front end face of the non-slip block is guaranteed to be capable of limiting the vertical section of the first sliding block, and the first sliding block is guaranteed to stably move in the sliding groove.

Optionally, both sides of the bottom end of the sliding groove are provided with limiting grooves, and the lower end of the horizontal section of the first sliding block is embedded in the sliding guide bar in the limiting groove.

The technical scheme is adopted: the limiting groove arranged on the sliding groove limits the sliding guide strip, so that the first sliding block can be separated from the second sliding block, the first sliding block can only directionally slide on the second sliding block, and the first sliding block can be vertically separated from the clamping groove.

Optionally, the core plate is provided with a fixing seat for fixing the driving oil cylinder, the fixing seat is provided with a first limit switch and a second limit switch, and the second slider is connected with a moving plate located between the first limit switch and the second limit switch.

The technical scheme is adopted: the arrangement of the first limit switch and the second limit switch can ensure the propelling stroke and the resetting stroke of the driving oil cylinder, and the damage to each part of the die caused by the excessive movement of the second sliding block is avoided.

Optionally, the shaping block is provided with a shaping block towards one end of the annular plate, the cavity plate is provided with a directional slot, and the shaping block is inserted and slid in the directional slot.

The technical scheme is adopted: the shaping piece realizes the shaping to ring slab other end structure through the setting of shaping piece on the one hand, and on the other hand has injectd the shaping piece and has directionally slided on the directional slot on the die cavity board, avoids being pulled the piece and peels off from the die cavity board.

Optionally, a guide oblique block with a T-shaped cross section is arranged at the lower end of the drawing block, the guide oblique block is inserted into a guide chute arranged at one end of the shaping block, which is far away from the annular plate, and the shaping block is inserted into the annular plate after the end surface of the guide oblique block abuts against the chute wall of the guide chute.

The technical scheme is adopted: the guide oblique block arranged at the lower end of the drawing block is inserted into the guide oblique slot arranged on the shaping block, and when the drawing block is pulled upwards along with the hot runner plate, the shaping block can only be forced to slide on the directional slot due to the arrangement of the directional slot in the cavity plate, namely the shaping block is stripped from the annular plate. When the hot runner plate and the cavity plate are closed, the drawing block can press the whole shaping block on the directional slot, namely the shaping block is positioned in the annular plate.

Optionally, hot runner plate outer wall is provided with first drag hook, be provided with the second drag hook on the core board, be provided with the elastic locating plate on the die cavity board, the elastic locating plate is located the terminal surface of the outside one end of die cavity board is provided with first inclined plane and another terminal surface and is provided with first plane, first drag hook orientation the one end of second drag hook is provided with second inclined plane and the other end is provided with the third inclined plane, the second drag hook orientation the one end of first drag hook is provided with fourth inclined plane and the other end is provided with the second plane.

Through adopting above-mentioned technical scheme, injection molding machine pulling core board because the second drag hook is spacing by the elastic positioning board, and then pulls the separation of die cavity board and hot runner board again, along with continue pulling first drag hook oppression elastic positioning board and inwards move, the separation of elastic positioning board and second drag hook, die cavity board and core board alternate segregation this moment realizes the die sinking of whole mould.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the first core-pulling assembly, the core pulling of the mold on the decoration strip base in multiple directions is realized, and further the tearing of the integral structure of the decoration strip base is avoided;

2. through the structural arrangement of the first sliding block, the second sliding block and the third sliding block, the first sliding block, the second sliding block and the third sliding block can be driven to operate step by step only by one driving oil cylinder without adopting a plurality of power sources;

3. the core plate and the cavity plate can be locked through the elastic positioning plate, so that mutual separation is avoided, the stability of the mold during injection molding is ensured, and the product quality is ensured.

Drawings

Fig. 1 is a schematic structural view of a processing mold.

Fig. 2 is a schematic structural view of a vehicle door armrest trim strip base in the related art.

Fig. 3 is a schematic structural view of the core plate and the first core back assembly.

Fig. 4 is an exploded view of the core plate and the first core back assembly.

Fig. 5 is a schematic structural view of the elastic locking block in the second slider and the third slider.

Fig. 6 is a schematic structural view of the first core back assembly.

Fig. 7 is a schematic view of the portion a shown in fig. 3.

Fig. 8 is a schematic drawing of the core pulling process of the first core pulling assembly and the decoration strip base.

Fig. 9 is a schematic structural view of the second core back assembly.

Fig. 10 is a schematic structural diagram of the drawing block and the shaping block.

Fig. 11 is an enlarged schematic view of a portion B shown in fig. 1.

Fig. 12 is a schematic structural view of the first hook, the second hook and the elastic positioning plate.

Description of reference numerals: 1. a core plate; 1-1, placing a groove; 2. a cavity plate; 3. a hot runner plate; 4. a first slider; 5. positioning blocks; 6. a second slider; 7. a third slider; 8. a driving oil cylinder; 9. an elastic locking block; 10. a shaping block; 11. drawing the block; 12. an insertion block; 13. locking the bolt; 14. an elastic member; 15. a sliding hole; 16. a drive block; 17. a first guide slope; 18. a second guide slope; 19. inserting holes; 20. a sliding groove; 21. a slip-resistant block; 22. connecting holes; 23. a limiting groove; 24. sliding the guide bar; 25. a fixed seat; 26. a first limit switch; 27. a second limit switch; 28. moving the plate; 29. forming a block; 30. orienting the slot; 31. a guide oblique block; 32. a guide chute; 33. a first draw hook; 34. a second draw hook; 35. an elastic positioning plate; 36. a first inclined plane; 37. a first plane; 38. a second inclined plane; 39. a third inclined plane; 40. a second plane; 41. a fourth slope; 42. an upper fixing plate; 43. a lower fixing plate; 44. a first press plate block; 45. a second press plate block; 46. a decorative strip base; 47. an annular plate; 48. a snap groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-12.

The embodiment of the application discloses a mold processing for producing a base of a vehicle door handrail decoration strip. Referring to fig. 1 and 2, the processing mold for producing the base of the door handle trim includes, in order, an upper fixing plate 42, a hot runner plate 3, a cavity plate 2, a core plate 1, and a lower fixing plate 43. Two forming cavities for producing the decoration strip base 46 are formed between the cavity plate 2 and the core plate 1, two groups of first core-pulling assemblies for forming the annular plate 47 in the decoration strip base 46 and the clamping grooves 48 in the annular plate 47 are arranged on two sides of the core plate 1, and two groups of second core-pulling assemblies for forming one end of the annular plate 47 in the decoration strip base 46 are arranged on the cavity plate 2. The arrangement of the first core pulling assembly and the second core pulling assembly enables a ring of annular plates 47 to be arranged on the side face of the decoration strip base 46, meanwhile, the buckling grooves 48 can be arranged on the plate wall of the annular plates 47, and four buckling grooves 48 are arranged on the annular plates 47 in the scheme.

Referring to fig. 3 and 4, the first core pulling assembly includes a first slider 4, a second slider 6, a third slider 7, a driving cylinder 8 fixed on the core plate 1, and an elastic locking block 9 preset on the core plate 1. The core plate 1 is provided with a placing groove 1-1 for the third sliding block 7 to insert and slide, and in order to avoid the third sliding block 7 from separating from the placing groove 1-1, two first pressing plates 44 tightly pressed on the upper end surface of the third sliding block 7 are arranged on the two sides of the placing groove 1-1 of the core plate 1. The core plate 1 is provided with a fixed seat 25 at the outer side of the placing groove 1-1, the driving oil cylinder 8 is fixed on the fixed seat 25, and the front end of a piston rod in the driving oil cylinder 8 is arranged towards the placing groove 1-1. On the other hand, the first sliding block 4 is provided with four blocks which are respectively arranged at the upper end and the lower end of the front side of the second sliding block 6, meanwhile, the second sliding block 6 is arranged on the third sliding block 7 in a directional sliding mode, and the tail end of the second sliding block is fixedly connected with a piston rod of the driving oil cylinder 8.

Referring to fig. 4 and 5, the elastic locking block 9 includes an insertion block 12 inserted into a through hole formed in the core plate 1, a spring serving as an elastic member 14 is provided between the insertion block 12 and the core plate 1 located at the bottom of the through hole, the insertion block 12 is fixed in the through hole by a locking bolt 13, the upper end of the insertion block 12 protrudes out of the through hole and is located in the placement groove 1-1, and the insertion block 12 axially jumps in the through hole. On the other hand, a sliding hole 15 is formed in the third sliding block 7 and sleeved on the elastic locking block 9, the cross section of the sliding hole 15 is preferably rectangular, the third sliding block 7 cannot be limited by the elastic locking block 9 when sliding outwards due to the arrangement of the sliding hole 15, but can be limited by the side wall of the sliding hole 15, and meanwhile, when the third sliding block 7 slides towards the center of the core plate 1, the vertical end face of the inserting block 12 can abut against the hole wall of the sliding hole 15, so that the third sliding block 7 is limited, and the third sliding block 7 is effectively prevented from excessively sliding.

Referring to fig. 3, 5 and 6, the upper end of the third slider 7 is provided with an insertion hole 19, the second slider 6 is inserted into the insertion hole 19, and the third slider 7 is further provided with a second pressing plate block 45 located on the upper end surface of the second slider 6 outside the insertion hole 19, so that when the second slider 6 is pulled out from the insertion hole 19, the third slider 7 can still limit the second slider 6. The second slider 6 is vertically inserted with a driving block 16, the upper end of the driving block 16 is fixedly connected with the second slider 6, the lower end of the driving block is inserted into the sliding hole 15, and when the driving block 16 moves to the end face, far away from the core plate 1, of the sliding hole 15, the end face can be pressed tightly, so that the third slider 7 is driven to slide on the core plate 1.

Referring to fig. 5, in order to avoid the interference between the driving block 16 and the insertion block 12, the lower end of the driving block 16 is provided with a first guiding inclined surface 17, and the upper end of the insertion block 12 near the driving block 16 is provided with a second guiding inclined surface 18, when the driving block 16 moves above the insertion block 12, the driving block 16 can press down the insertion block 12, and then slide on the upper end surface of the insertion block 12, and finally move to the hole wall of the sliding hole 15. When the second sliding block 6 is pushed forward, the driving block 16 is separated from the inserting block 12, and the third sliding block 7 is limited again after the inserting block 12 is reset.

Referring to fig. 6 and 7, the first slider 4 is L-shaped, the horizontal section of the first slider 4 is inserted into a sliding groove 20 formed in the front end of the second slider 6, the sliding groove 20 is obliquely arranged on the second slider 6, the oblique direction is towards the middle of the top end of the second slider 6, and the upper end face of the horizontal section of the first slider 4 is provided with a positioning block 5 for forming a buckling groove 48 on the annular plate 47. The limiting groove 23 communicated with the sliding groove 20 is further formed in the two sides of the bottom of the sliding groove 20, and meanwhile, the sliding guide strips 24 embedded in the limiting groove 23 are arranged on the two sides of the lower end of the first sliding block 4, so that the first sliding block 4 can only slide along the extending direction of the sliding groove 20.

Referring to fig. 6 and 7, the first slider 4 and the second slider 6 are inserted into the insertion hole 19 of the third slider 7, and the third slider 7 is further provided with a stopper 21 for positioning the first slider 4. The upper end of the anti-slip block 21 is fixed in a connecting hole 22 arranged on the inserting hole 19 through a bolt, the front side end face of the lower end of the anti-slip block 21 is used for positioning the vertical section of the first slide block 4, and the lower end face of the lower end is positioned on the upper end face of the second slide block 6.

Referring to fig. 8, when the first slider 4 and the second slider 6 are installed, the four first sliders 4 slide into the sliding groove 20 formed at the front end of the second slider 6, then are integrally inserted into the insertion hole 19 of the third slider 7, and finally the anti-slip block 21 is inserted and fixed into the connection hole 22, and the front end of the anti-slip block 21 abuts against the end surface of the vertical section of the first slider 4, so that the sliding of the first slider 4 in the horizontal direction is limited. When the second slider 6 slides outwards on the third slider 7, the first slider 4 cannot move in the horizontal direction and can only move in the vertical direction relative to the core plate 1, and then the positioning block 5 is separated from the clamping groove 48 on the decoration strip base 46, so that core pulling is realized.

In order to ensure the stroke distance of the second slider 6, referring to fig. 3 or 8, the fixed base 25 is further provided with a first limit switch 26 and a second limit switch 27, which may be schneider limit switches in the prior art, model XCMN2102L 1. Meanwhile, a movable plate 28 is fixed at the upper end of the second slider 6, the structure of the movable plate 28 is not limited, and as long as one end of the movable plate is located between the first limit switch 26 and the second limit switch 27, and the movable plate 28 triggers the first limit switch 26 or the second limit switch 27, the driving oil cylinder 8 stops driving the second slider 6, so that the stability of the whole core pulling process is ensured.

Referring to fig. 9 and 10, the second core pulling assembly includes two fixing blocks 10 respectively inserted into the annular plate 47 on the base 46 of the trim strip, and two pulling blocks 11 respectively controlling the movement of the two fixing blocks 10, and the upper ends of the two pulling blocks 11 are fixed on the hot runner plate 3 to move together with the hot runner plate 3. Wherein the lower end of the drawing block 11 is provided with a guide inclined block 31, the section of the guide inclined block 31 is T-shaped, meanwhile, the vertical section of the guide inclined block 31 is integrally arranged on the end surface of the lower end of the drawing block 11, and the inclination angle is consistent with the arrangement angle of the decorative strip base 46 on the cavity plate 2. On the other hand, the shaping block 10 is provided with a guide chute 32 for inserting the guide chute 31, so that the relative sliding of the drawing block 11 on the shaping block 10 is realized.

Referring to fig. 9 and 10, the cavity plate 2 is provided with an orientation insertion slot 30, the tail end of the orientation insertion slot 30 is positioned at the part of the decoration strip base 46 where the annular plate 47 is positioned, and then when the forming block 29 arranged at the front end of the shaping block 10 is inserted into the orientation insertion slot 30, the shaping block can be directly inserted into the annular plate 47. The directional slot 30 has the purpose of limiting the moving direction of the shaping block 10, when the drawing block 11 moves together with the hot runner plate 3, the drawing block 11 moves vertically relative to the cavity plate 2, and then the drawing block 11 drives the shaping block 10 to slide in the directional slot 30, so that the core pulling step of the shaping block 10 and the annular plate 47 is realized.

The hot runner plate 3 is fixed on the injection molding machine through an upper fixing plate 42, and the movement of the hot runner plate 3 on the cavity plate 2 is described as relative movement, and the specific movement mode is as follows: and pulling the core plate 1 fixed by the lower fixing plate 43 by the injection molding machine to move, driving the cavity plate 2 to move by the core plate 1, and relatively separating the cavity plate 2 from the hot runner plate 3, namely performing core-pulling on the cavity plate 2 by the second core-pulling assembly.

Referring to fig. 11 and 12, two first draw hooks 33 are arranged at two ends of the hot runner plate 3, two second draw hooks 34 are arranged on the core plate 1, an elastic positioning plate 35 matched with the first draw hooks 33 and the second draw hooks 34 is arranged on the cavity plate 2 in the middle, the elastic positioning plate 35 is inserted into the cavity plate 2 and is fixedly connected through a spring, and the elastic positioning plate 35 is inserted into the cavity plate 2 and moves on the cavity plate 2. Two end faces at the outer end of the elastic positioning plate 35 are respectively provided with a first inclined face 36 and a first plane 37, the first inclined face 36 is arranged on the end face far away from the first draw hook 33, the first plane 37 is arranged on the end face close to the first draw hook 33, a second inclined face 38 is arranged on the end face, close to the elastic positioning plate 35, of the first draw hook 33, one end far away is provided with a third inclined face 39, a fourth inclined face 41 is arranged on the end face, close to the first draw hook 33, of the second draw hook 34, and a second plane 40 is arranged on the end face far away.

The embodiment of the application discloses an implementation principle of a mold for producing a base of a vehicle door handrail decoration strip is as follows: when the injection molding machine pulls the core plate 1, the second plane 40 on the second draw hook 34 on the core plate 1 and the first plane 37 on the elastic positioning plate 35 are abutted against each other for positioning, so that the core plate 1 pulls the cavity plate 2 to move together, the hot runner plate 3 is separated from the cavity plate 2, along with the continuous pulling of the cavity plate 2, the second inclined plane 38 on the first draw hook 33 presses the first inclined plane 36 on the elastic positioning plate 35, the elastic positioning plate 35 moves towards the middle of the cavity plate 2, the elastic positioning plate 35 and the second draw hook 34 are staggered with each other, the second draw hook 34 is unlocked, at the moment, the hot runner plate 3 limits the cavity plate 2 through the second core pulling assembly, after the core plate 1 is continuously pulled, the core plate 1 is separated from the cavity plate 2, the die opening of the die is realized, finally, the first core pulling assembly is operated, and the decoration strip base 46 finishes the core pulling in multiple directions. When injection molding is needed again, the core plate 1 moves towards the cavity plate 2, the cavity plate 2 is pressed on the hot runner plate 3 together, and the mold is closed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mold processing for producing door handrail ornamental strip base, includes coreboard (1), cavity board (2), hot runner plate (3), its characterized in that: the core plate (1) is provided with a first core-pulling component, the cavity plate (2) is provided with a second core-pulling component,

the first loose core assembly comprises:

the upper end surface of the first sliding block (4) is provided with a positioning block (5) inserted in the clamping groove (48);

the front end of the second sliding block (6) is inserted into the annular plate (47) and used for pulling the first sliding block (4) to be separated from the clamping groove (48);

the third sliding block (7) is inserted into the decorative strip base (46) and is separated from the decorative strip base (46) after being pulled by the second sliding block (6);

the driving oil cylinder (8) pulling the second sliding block (6) and the elastic locking block (9) are arranged on the core plate (1) and used for limiting the sliding of the third sliding block (7);

the second loose core assembly comprises: the hot runner plate comprises a shaping block (10) used for being inserted into the other end of the annular plate (47), and a drawing block (11) used for controlling the shaping block (10) to be separated from the annular plate (47), wherein the upper end of the drawing block (11) is fixed on the hot runner plate (3).

2. The processing mold for producing the vehicle door armrest trim strip base as claimed in claim 1, wherein: the elastic locking block (9) comprises an inserting block (12) inserted into the core plate (1), a locking bolt (13) for positioning the inserting block (12) and an elastic piece (14) positioned between the lower end of the inserting block (12) and the core plate (1), the third sliding block (7) is arranged on the core plate (1) in a sliding mode and provided with a sliding hole (15) sleeved on the inserting block (12), and the side end face of the inserting block (12) is limited on the hole wall of the sliding hole (15).

3. The processing mold for producing the vehicle door armrest trim strip base as claimed in claim 2, wherein: the front end of the second sliding block (6) is inserted into the front end of the third sliding block (7) in a plugging mode, a driving block (16) is arranged in the sliding hole (15) and faces the front end of the third sliding block (7), a first guide inclined plane (17) is arranged at the lower end of the driving block (16), a second guide inclined plane (18) which can be tightly abutted to the first guide inclined plane (17) is arranged at the upper end of the inserting block (12), and the driving block (16) moves to the hole wall of the sliding hole (15) to drive the third sliding block (7) to move.

4. The processing mold for producing the vehicle door armrest trim strip base as claimed in claim 3, wherein: the sliding block mechanism is characterized in that an inserting hole (19) for inserting the second sliding block (6) is formed in the front end of the third sliding block (7), a sliding groove (20) which is obliquely arranged is formed in the outer end face of the second sliding block (6), the first sliding block (4) is arranged in an L shape, the horizontal section of the first sliding block (4) slides on the sliding groove (20) in a limiting mode, a positioning block (5) is arranged on the upper end face of the horizontal section of the first sliding block (4), and a sliding stopping block (21) for positioning the vertical section of the first sliding block (4) and then forcing the first sliding block (4) to slide on the sliding groove (20) is arranged on the inserting hole (19).

5. The processing mold for producing a vehicle door armrest trim strip base as claimed in claim 4, wherein: the inserting hole (19) comprises a connecting hole (22) for inserting the anti-slip block (21), the anti-slip block (21) is fixed in the connecting hole (22) through a connecting bolt, the lower end face of the anti-slip block (21) is positioned on the outer end face of the second sliding block (6), and the front end face of the anti-slip block abuts against the end face of the vertical section of the first sliding block (4).

6. The processing mold for producing a vehicle door armrest trim strip base as claimed in claim 4, wherein: the sliding guide rail is characterized in that limiting grooves (23) are formed in two sides of the bottom end of the sliding groove (20), and the lower end of the horizontal section of the first sliding block (4) is embedded in sliding guide bars (24) in the limiting grooves (23).

7. The processing mold for producing the vehicle door armrest trim strip base as claimed in claim 1, wherein: the core plate (1) is provided with a fixed seat (25) used for fixing the driving oil cylinder (8), a first limit switch (26) and a second limit switch (27) are arranged on the fixed seat (25), and a moving plate (28) located between the first limit switch (26) and the second limit switch (27) is connected to the second sliding block (6).

8. The processing mold for producing the vehicle door armrest trim strip base as claimed in claim 1, wherein: the shaping block (10) faces one end of the annular plate (47) and is provided with a shaping block (29), the cavity plate (2) is provided with an orientation slot (30), and the shaping block (29) is inserted and slides in the orientation slot (30).

9. The processing mold for producing a vehicle door armrest trim strip base as claimed in claim 8, wherein: the lower end of the drawing block (11) is provided with a guide inclined block (31) with a T-shaped section, the guide inclined block (31) is inserted into a guide inclined groove (32) formed in one end, far away from the annular plate (47), of the shaping block (10), the end face of the guide inclined block (31) abuts against the groove wall of the guide inclined groove (32), and then the shaping block (29) is inserted into the annular plate (47).

10. The processing mold for producing the vehicle door armrest trim strip base as claimed in claim 1, wherein: hot runner plate (3) outer wall is provided with first drag hook (33), be provided with second drag hook (34) on core board (1), be provided with elastic locating plate (35) on cavity board (2), elastic locating plate (35) are located the terminal surface of the outside one end of cavity board (2) is provided with first inclined plane (36) and another terminal surface is provided with first plane (37), first drag hook (33) orientation the one end of second drag hook (34) is provided with second inclined plane (38) and the other end is provided with third inclined plane (39), second drag hook (34) orientation the one end of first drag hook (33) is provided with fourth inclined plane (41) and the other end is provided with second plane (40).