CN114750370A - Vehicle window glass bracket mould - Google Patents

Abstract

The application discloses a vehicle window glass bracket mold which comprises a fixed mold, a movable mold, a first side loose core, a second side loose core and a fixed assembly, wherein the fixed mold comprises a fixed mold body and a movable mold body; a boss is protruded on the movable die, and the length of the boss is equal to that of the internal thread hole; the first side loose core is provided with a mounting hole; the fixing assembly comprises a positioning column, an elastic piece and an elastic clamping piece; the positioning column can be axially and slidably arranged in the mounting hole, one end of the positioning column, which is far away from the nut, protrudes out of the limiting part, and the limiting part is used for limiting the positioning column to be separated from the mounting hole; one end of the positioning column, which is close to the nut, is provided with a positioning part which is used for being matched with the internal threaded hole, and the outer side wall of the positioning part is provided with an installation groove; the elastic piece is arranged in the mounting hole and used for forcing the positioning column to slide towards the direction close to the nut; the elastic clamping piece is arranged in the mounting groove and used for clamping the nut on the positioning portion. When the vehicle window glass bracket mold is used for assembling the nut, the assembling precision is higher, and injection molding waste products are not easy to occur.

Description

Vehicle window glass bracket mould

Technical Field

The application relates to the technical field of molds, in particular to a vehicle window glass bracket mold.

Background

At present, when automobile window glass is assembled, the U-shaped groove on the bracket is clamped on the automobile window glass through the adhesive, the pin hole on the bracket is aligned with the hole position on the automobile window glass, the pin penetrates through the pin hole and the hole position to realize the installation and fixation between the bracket and the automobile window glass, and finally, the bracket is installed and fixed on the glass lifter through the bolt.

However, the existing window glass bracket mold has the following defects: (1) during injection molding, the nut needs to be manually assembled in a forming cavity on a mold, so that the manual assembly efficiency is low, the assembly is easy to have errors, and the rejection rate is high; (2) because the nut generally keeps flat in the shaping intracavity, and lack on the mould and carry out the component fixed to the nut, when the compound die, lead to the mounted position of nut to change easily, the assembly precision is poor to the waste product of moulding plastics appears easily.

Disclosure of Invention

An object of this application is to provide a window glass bracket mould that the assembly precision is high, is difficult for appearing the waste product of moulding plastics.

Another object of the application is to provide a degree of automation is high, and assembly efficiency is high, and the assembly precision is high, and the window glass bracket mould that the rejection rate is low.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows: a vehicle window glass bracket mould comprises a fixed mould, a movable mould, a first side loose core and a second side loose core, wherein the first side loose core and the second side loose core can be arranged on the fixed mould in a sliding manner, and a forming cavity for forming a bracket is enclosed among the fixed mould, the movable mould, the first side loose core and the second side loose core; a boss for being matched with the nut internal thread hole is protruded on the movable die, and the length of the boss is equal to that of the internal thread hole; the first side loose core is provided with a mounting hole aligned with the internal thread hole; the die further comprises a fixing assembly, wherein the fixing assembly comprises a positioning column, an elastic piece and an elastic clamping piece; the positioning column is axially slidably arranged in the mounting hole, one end of the positioning column, which is far away from the nut, protrudes out of a limiting part, and the limiting part is used for limiting the positioning column to be separated from the mounting hole; one end of the positioning column, which is close to the nut, is provided with a positioning part which is used for being matched with the internal threaded hole, and the outer side wall of the positioning part is provided with a mounting groove; the elastic piece is arranged in the mounting hole and used for forcing the positioning column to slide towards the direction close to the nut; the elastic clamping piece is arranged on the mounting groove and is used for clamping the nut on the positioning part; when the movable die moves towards the direction close to the fixed die, the boss pushes the positioning column to slide towards the direction far away from the nut through the positioning part, and when the positioning part and the elastic clamping part move to the outside of the internal thread hole, the boss is matched with the internal thread hole.

Preferably, the number of the mounting grooves is at least two, and the at least two mounting grooves are arranged at equal intervals along the circumferential direction of the positioning part; the elastic clamping piece comprises at least two elastic ribs, and the at least two elastic ribs are arranged in the mounting groove in a one-to-one correspondence manner; one end of the elastic rib is fixed on the positioning column or the positioning part, and an arch part used for clamping the nut on the positioning part is formed at the other end of the elastic rib. The advantages are that: when will the nut cover is in when location portion, the inner wall in internal thread hole forces the elasticity muscle takes place deformation, so that hunch portion holds completely in the mounting groove, thereby makes hunch portion can pass completely the internal thread hole, until the nut with location portion complete adaptation back, the elasticity muscle resumes deformation, makes hunch portion contradict keep away from on the internal thread hole the one end of reference column, thereby will the nut presss from both sides tightly in location portion, in order to restrict the nut with produce relative motion between the location portion. When the boss promotes during location portion, the inner wall in internal thread hole also can force the elasticity muscle takes place to deform, makes arch portion can hold completely in the mounting groove, thereby makes location portion and the elasticity muscle can break away from completely the internal thread hole.

Preferably, one end of the arch part deviating from the positioning column is bent inwards to form a supporting part, and the supporting part abuts against the inner wall of the mounting groove. The advantages are that: the supporting part can be effectively right the hunch-up portion supports to improve the elasticity of elasticity muscle, prevent the elasticity muscle takes place moulding deformation, thereby is favorable to prolonging the life of elasticity muscle.

Preferably, chamfers or fillets are arranged at two ends of the internal thread hole and/or at one end, far away from the positioning column, of the positioning portion and/or at one end, far away from the movable mold, of the boss. The advantages are that: when the both ends in internal thread hole are provided with chamfer or fillet, the boss with relevant position on location portion also can be equipped with chamfer or fillet, through the mutual butt cooperation between chamfer and the chamfer or between fillet and the fillet, can further improve the boss with between the internal thread hole and location portion with positioning accuracy between the internal thread hole. When one end, far away from the positioning column, of the positioning part is provided with a chamfer or a fillet, the internal thread hole can easily penetrate through the positioning part, and therefore the assembling difficulty of the nut can be reduced. When the end of the boss, which is far away from the movable die, is provided with a chamfer or a fillet, the boss is convenient to be inserted into the internal thread hole more easily, and the boss is prevented from impacting the nut due to small errors.

Preferably, the second side loose core comprises two side loose blocks, the two side loose blocks are connected to the fixed die in a sliding manner, and threaded holes are formed in the two side loose blocks in a penetrating manner along the sliding direction; the die further comprises a driving assembly, wherein the driving assembly comprises a screw, a gear and a rack; the screw rod is rotatably arranged on the fixed die and is provided with a bidirectional thread for connecting the two threaded holes in a threaded manner; the gear is coaxially arranged on the screw rod, the gear is meshed with the rack, and one end of the rack is arranged on the movable die; when the movable die moves towards the direction close to or away from the fixed die, the rack drives the screw rod to rotate through the gear, so that the two side pumping blocks are forced to be close to or away from each other. The advantages are that: compared with the traditional single side core pulling, the two side core pulling blocks which are oppositely arranged are shorter in sliding distance when the mold is opened, so that the mold opening efficiency can be improved. In addition, under the action of the driving assembly, when the movable die moves towards the direction of approaching the fixed die, the rack drives the screw rod to rotate through the gear, so that the two side pumping blocks are automatically forced to approach each other; in a similar way, when the movable die moves towards the direction away from the fixed die, the rack drives the screw rod to rotate through the gear, so that the two side pulling blocks are automatically forced to be away from each other, a separate driving component does not need to be arranged for each side pulling block, and the cost is lower.

Preferably, the number of the first side loose cores is two, and the two first side loose cores are symmetrically arranged; each first side loose core corresponds to one screw and at least two forming cavities, and each forming cavity corresponds to two side loose blocks; at least two groups of bidirectional threads are arranged on each screw rod, and each group of bidirectional threads are used for being matched with the threaded holes in the two side pulling blocks. The advantages are that: the layout mode can reasonably utilize the space of the mold, and improve the number of single injection molding products (namely the brackets), thereby improving the production efficiency.

Preferably, the mold further comprises an ejection assembly, wherein the ejection assembly comprises a top plate, an ejector rod and a driving piece; one end of the fixed die, which is far away from the movable die, is provided with a through hole for communicating the forming cavity, and the ejector rod is connected to the through hole in a sliding manner; one end of the ejector rod is fixed on the top plate, and the other end of the ejector rod is flush with the inner wall of the forming cavity; the driving piece is arranged between the fixed die and the top plate, and the driving piece drives the ejector rod to slide in the through hole through the top plate. The advantages are that: after the mold is opened, the top plate is driven to move towards the fixed mold direction through the driving piece so as to drive the ejector rod to slide in the through hole, and therefore an injection molding product (namely the bracket) can be automatically ejected out.

Preferably, the die further comprises a feeding assembly, wherein the feeding assembly comprises a feeding table, a positioning piece, a manipulator and a clamping piece; the positioning piece is arranged on the feeding table and used for positioning the nut on the feeding table; the clamping piece is arranged on the manipulator, and the manipulator is used for driving the clamping piece to move, so that the nut on the feeding table is clamped on the positioning part by the clamping piece. The advantages are that: the nut can be automatically assembled under the action of the feeding assembly; specifically, the nut is placed on the positioning piece, and the nut is positioned on the feeding table through the positioning piece; then the clamping piece is driven by the manipulator to move to the position of the positioning piece, so that the nut is clamped by the clamping piece; and finally, the clamping piece is driven to move to the position of the positioning part through the manipulator so as to automatically sleeve and connect the nut on the positioning part.

Preferably, the positioning element comprises two V-shaped plates, the two V-shaped plates are oppositely arranged on the feeding table at intervals, and a positioning area for positioning at least one nut is formed between the two V-shaped plates. The advantages are that: at least one nut can be stacked through the positioning area formed between the two V-shaped plates so as to realize the positioning between the nut and the feeding table; in addition, a plurality of nuts can be stacked in the positioning area at one time, so that the stacking efficiency can be improved; in addition, through two space between the V-shaped board, for both the holder centre gripping the nut provides operating space, also for manual stacking or robot stacking the nut provides operating space.

Preferably, at least one outer side surface of the nut is provided with a groove; the clamping piece is a pneumatic finger which comprises two clamping arms, and at least one clamping arm is provided with a bulge used for being matched with the groove. The advantages are that: on one hand, the stability of clamping the nut by the two clamping arms can be improved through the mutual matching between the protrusions and the grooves; on the other hand, under the action of the groove, the position of the injection molding product (namely, the bracket) corresponding to the groove is filled with plastic, so that the stability of mutual combination between the nut and the bracket is improved.

Compared with the prior art, the beneficial effect of this application lies in: (1) when the nut is assembled, the nut is assembled on the positioning part, and the positioning part is matched with the internal thread hole so as to position the nut on the first side loose core; the nut is clamped on the positioning part through the elastic clamping part so as to limit the relative movement between the nut and the positioning part (namely the first side core-pulling part) during mold closing, the assembling precision of the nut is improved, and injection molding waste products are not easy to occur.

(2) When the die is closed, the first side core-pulling is firstly driven to slide, so that the nut moves into the forming cavity along with the first side core-pulling; and then the movable die is driven to move towards the direction close to the fixed die, and the boss pushes the positioning column to slide towards the direction far away from the nut through the positioning part. In the sliding process of the positioning column, the boss gradually enters the internal threaded hole, and the positioning part gradually breaks away from the internal threaded hole to prevent the nut from displacing in the forming cavity, so that the assembling precision of the nut is ensured; during the process that the positioning column part slides out of the internal threaded hole, the elastic clamping part deforms so as to be completely accommodated in the mounting groove. Because the length of the boss is equal to that of the internal thread hole, the boss can just push the positioning part and the elastic clamping part out of the internal thread hole completely, and one end of the boss, far away from the movable die, cannot extend out of the internal thread hole, at the moment, the positioning part loses the positioning effect on the nut completely, and the boss is just matched with the internal thread hole, so that the positioning effect of the positioning part on the nut can be completely replaced.

(3) During the die sinking, because the boss will location portion and elastic clamping piece has been released completely outside the internal thread hole, promptly location portion and elastic clamping piece hold completely in the mounting hole, then taking out when the first side is loosed core, the internal thread hole can not be right location portion and elastic clamping piece's motion produces the interference, makes the first side is loosed core and can be carried location portion and elastic clamping piece earlier with injection moulding product (promptly the bracket) separation to can prevent that the interference phenomenon from appearing in the drawing of patterns process.

Drawings

Fig. 1 is a perspective view of a vehicle window glass carrier mold provided in the present application.

Fig. 2 is an enlarged view of a part of the structure in fig. 1 provided in the present application.

Fig. 3 is a perspective view of two first side loose cores in fig. 2 provided by the present application.

Fig. 4 is a partial enlarged view at I in fig. 3 provided herein.

Fig. 5 is an exploded view of the structures of fig. 4 provided herein.

Fig. 6 is an enlarged view of a portion of the structure in fig. 5 provided herein.

Fig. 7 is another perspective view of the moving mold of fig. 1 provided herein.

Fig. 8 is a partial enlarged view at II in fig. 7 provided herein.

Fig. 9 is a perspective view of a loading assembly provided in the present application.

Fig. 10 is a partial enlarged view at III in fig. 9 provided herein.

Fig. 11 is an exploded view of the structures of fig. 10 provided in the present application.

Fig. 12 is a schematic loading view of the loading assembly of fig. 9 provided herein.

Fig. 13 is an enlarged view of a portion of fig. 12 at IV as provided herein.

Fig. 14 is a diagram of a mold clamping process of the window glass carrier mold of fig. 1 provided in the present application.

Fig. 15 is a partial enlarged view of fig. 14 at V provided herein.

Fig. 16 is an enlarged view of a portion of fig. 14 at VI provided herein.

Fig. 17 is a view showing a mold clamping state of the window glass carrier mold of fig. 1 according to the present application.

Fig. 18 is an enlarged view of a portion of VII in fig. 17 provided herein.

FIG. 19 is a view of the mold cavity of FIG. 18 with a carrier injected therein as provided by the present application.

Fig. 20 is a perspective view of the bracket of fig. 19 provided herein.

In the figure: 1. fixing a mold; 11. a through hole; 2. moving the mold; 21. a boss; 22. a core bar; 3. a first side is used for pulling cores; 31. mounting holes; 32. a hydraulic cylinder; 4. a second side core is pulled; 41. a side drawing block; 411. a threaded hole; 5. a fixing assembly; 51. a positioning column; 511. a limiting part; 512. a positioning part; 513. mounting grooves; 52. an elastic member; 53. a resilient clamping member; 531. an elastic rib; 532. an arching portion; 533. a support portion; 6. a drive assembly; 61. a screw; 62. a gear; 63. a rack; 7. ejecting the assembly; 71. a top plate; 72. a top rod; 73. a drive member; 8. a feeding assembly; 81. a feeding table; 82. a positioning member; 821. a V-shaped plate; 83. a clamping member; 831. clamping arms; 832. a protrusion; 100. a bracket; 101. a pin hole; 200. a nut; 201. an internally threaded bore; 202. and (4) a groove.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments described below or between the technical features may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present application. The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1 to 8, an embodiment of the present application provides a mold for a vehicle window glass bracket 100, including a fixed mold 1, a movable mold 2, a first side core-pulling 3 and a second side core-pulling 4, where the first side core-pulling 3 and the second side core-pulling 4 are both slidably disposed in the fixed mold 1, and a molding cavity for molding the bracket 100 is enclosed among the fixed mold 1, the movable mold 2, the first side core-pulling 3 and the second side core-pulling 4. As shown in fig. 7 and 8, a boss 21 for fitting the internal thread hole 201 of the nut 200 is projected on the movable mold 2, and the length of the boss 21 is equal to the length of the internal thread hole 201 (i.e., the length of the boss 21 in the axial direction of the internal thread hole 201 is equal to the axial length of the internal thread hole 201, i.e., the length of the boss 21 in the axial direction of the internal thread hole 201 is equal to the thickness of the nut 200 in the axial direction of the internal thread hole 201). As shown in fig. 5, the first side core 3 is provided with a mounting hole 31 aligned with the female screw hole 201. As shown in fig. 3, 4 and 5, the mold further includes a fixing assembly 5, the fixing assembly 5 including a positioning post 51, an elastic member 52 and an elastic clamping member 53; as shown in fig. 13, the positioning post 51 is axially slidably disposed in the mounting hole 31, one end of the positioning post 51 away from the nut 200 protrudes from a limiting portion 511, and the limiting portion 511 is used for limiting the positioning post 51 to be separated from the mounting hole 31; one end of the positioning column 51 close to the nut 200 is provided with a positioning part 512 adapted to the internal threaded hole 201, and the outer side wall of the positioning part 512 is provided with a mounting groove 513; the elastic piece 52 is arranged in the mounting hole 31, and the elastic piece 52 is used for forcing the positioning column 51 to slide towards the direction close to the nut 200; the elastic clamping piece 53 is provided in the mounting groove 513, and the elastic clamping piece 53 is used to clamp the nut 200 to the positioning part 512. As shown in fig. 18, when the movable mold 2 moves toward the fixed mold 1, the boss 21 pushes the positioning post 51 to slide in a direction away from the nut 200 by the positioning part 512, and the boss 21 fits into the female screw hole 201 until the positioning part 512 and the elastic clamping member 53 move out of the female screw hole 201.

As shown in fig. 15, when assembling the nut 200, it is only necessary to assemble the nut 200 to the positioning part 512, by the mutual engagement between the positioning part 512 and the female screw hole 201, so as to position the nut 200 on the first side core back 3; and the nut 200 is clamped on the positioning part 512 by the elastic clamping part 53, so that the relative movement between the nut 200 and the positioning part 512 (namely, the first side core pulling 3) is limited during mold closing, the assembly precision of the nut 200 is improved, and injection molding waste products are not easy to occur.

As shown in fig. 18, during mold closing, the first side core pulling 3 slides, so that the nut 200 moves into the molding cavity along with the first side core pulling 3; the movable mold 2 is driven to move toward the fixed mold 1, and the boss 21 pushes the positioning post 51 to slide away from the nut 200 through the positioning portion 512. In the sliding process of the positioning column 51, the boss 21 gradually enters the internal threaded hole 201, and the positioning part 512 gradually disengages from the internal threaded hole 201, so that the nut 200 is prevented from displacing in the forming cavity, and the assembling precision of the nut 200 is ensured; during the process of sliding the positioning column 51 out of the internally threaded hole 201, the elastic clamping piece 53 is deformed so as to be completely accommodated in the mounting groove 513. Because the length of the boss 21 is equal to that of the internal thread hole 201, the boss 21 can just push out the positioning portion 512 and the elastic clamping member 53 completely out of the internal thread hole 201, and the end of the boss 21 far away from the movable die 2 does not extend out of the internal thread hole 201, at this time, the positioning portion 512 completely loses the positioning effect on the nut 200, and the boss 21 is just adapted to the internal thread hole 201, so that the positioning effect of the positioning portion 512 on the nut 200 can be completely replaced.

As shown in fig. 19, when the mold is opened, if the positioning portion 512 or the elastic clamp 53 is still located in the female screw hole 201, the positioning portion 512 or the elastic clamp 53 interferes with the female screw hole 201, and the first side core back 3 cannot be extracted (that is, the first side core back 3 cannot be extracted downward); and when the movable mold 2 is separated, the bracket 100 cannot be taken out to the right. However, when the mold is opened, since the boss 21 has completely pushed the positioning portion 512 and the elastic clamping member 53 out of the internal thread hole 201, that is, the positioning portion 512 and the elastic clamping member 53 are completely accommodated in the mounting hole 31, when the first side core back 3 is drawn out, the internal thread hole 201 does not interfere with the movement of the positioning portion 512 and the elastic clamping member 53, so that the first side core back 3 can carry the positioning portion 512 and the elastic clamping member 53 to be separated from the injection molded product (that is, the bracket 100) first, and thus the interference phenomenon in the demolding process can be prevented.

It should be noted that the elastic member 52 is a conventional member, such as a spring or other member with sufficient elasticity, and will not be described in detail herein. In addition, as shown in fig. 20, in the prior art, the pin hole 101 on the bracket 100 is not necessarily provided, and when the pin hole 101 is not provided, the window glass can be directly fixed in the U-shaped groove on the bracket 100 by an adhesive; in other words, the core bar 22 for molding the pin hole 101 is not necessarily provided; as shown in fig. 17 and 18, when it is desired to mold the pin hole 101, the core bar 22 is further provided on the movable die 2 such that the core bar 22 moves together with the movable die 2, i.e., the core bar 22 is equivalent to a part of the movable die 2. Further, the slidable mounting of the first side core 3 is a conventional one, and for example, as shown in fig. 2 and 3, the first side core 3 is slidably mounted in a slide groove of the fixed mold 1 by a slider, and a hydraulic cylinder 32 is provided to drive the first side core 3 to automatically slide.

Referring to fig. 5 and 6, in some embodiments of the present application, there are at least two mounting grooves 513, and at least two mounting grooves 513 are disposed at equal intervals along a circumferential direction of the positioning part 512; the elastic clamping piece 53 comprises at least two elastic ribs 531, and the at least two elastic ribs 531 are arranged in the mounting groove 513 in a one-to-one correspondence manner; as shown in fig. 13, one end of the elastic rib 531 is fixed to the positioning post 51 (or the positioning portion 512), and the other end of the elastic rib 531 is formed with an arch portion 532 for clamping the nut 200 to the positioning portion 512. When the nut 200 is sleeved on the positioning portion 512, the inner wall of the internal thread hole 201 forces the elastic rib 531 to deform, so that the arched portion 532 is completely accommodated in the installation groove 513, so that the arched portion 532 can completely pass through the internal thread hole 201, and after the nut 200 is completely matched with the positioning portion 512, the elastic rib 531 restores to deform, so that the arched portion 532 abuts against one end of the internal thread hole 201, which is far away from the positioning column 51, so that the nut 200 is clamped on the positioning portion 512, and the relative movement between the nut 200 and the positioning portion 512 is limited. When the boss 21 pushes the positioner 512, the inner wall of the internal thread hole 201 can also force the elastic rib 531 to deform, so that the arch portion 532 can be completely accommodated in the mounting groove 513, and thus the positioner 512 and the elastic rib 531 can be completely separated from the internal thread hole 201. In addition, the elastic force of the elastic clamping member 53 only needs to ensure that the nut 200 can be stably clamped on the positioning portion 512, and the elastic force of the elastic member 52 needs to ensure that the positioning portion 512 and the elastic clamping member 53 can be completely pushed out of the mounting hole 31 through the positioning post 51, so that the elastic force of the elastic member 52 is much greater than the elastic force of the elastic clamping member 53, and when the nut 200 is assembled, the elastic clamping member 53 is deformed first to ensure that the nut 200 does not push the positioning portion 512 through the arched portion 532.

Referring to fig. 13, in some embodiments of the present application, one end of the arch 532 offset from the positioning pillar 51 is bent inward to form a supporting portion 533, and the supporting portion 533 abuts against an inner wall of the mounting groove 513. The support portion 533 can effectively support the arch portion 532, so as to improve the elasticity of the elastic rib 531, prevent the elastic rib 531 from undergoing plastic deformation, and thus be beneficial to prolonging the service life of the elastic rib 531.

Referring to fig. 18, in some embodiments of the present application, both ends of the internal threaded hole 201 and/or one end of the positioning portion 512 away from the positioning column 51 and/or one end of the boss 21 away from the movable mold 2 are provided with chamfers or fillets. When the both ends of internal thread hole 201 were provided with chamfer or fillet, corresponding position on boss 21 and location portion 512 also can be equipped with chamfer or fillet, through between chamfer and the chamfer or between fillet and the fillet mutually support the cooperation, can further improve the positioning accuracy between boss 21 and the internal thread hole 201 and between location portion 512 and the internal thread hole 201. When the positioning portion 512 is provided with a chamfer or a fillet at the end away from the positioning column 51, the internal thread hole 201 can easily pass through the positioning portion 512, so that the assembling difficulty of the nut 200 can be reduced. When the end of the boss 21, which is far away from the moving die 2, is provided with a chamfer or a fillet, the boss 21 can be inserted into the internal thread hole 201 more easily, and the collision of the boss 21 with the nut 200 due to a small error is avoided.

Referring to fig. 14, 15 and 16, in some embodiments of the present application, the second side core back 4 includes two side core back blocks 41, the two side core back blocks 41 are slidably connected to the fixed mold 1, and threaded holes 411 are formed through the two side core back blocks 41 along the sliding direction; as shown in fig. 16, the mold further comprises a driving assembly 6, the driving assembly 6 comprising a screw 61, a gear 62 and a rack 63; the screw 61 is rotatably arranged on the fixed die 1, and the screw 61 is provided with a bidirectional thread for connecting the two threaded holes 411 in a threaded manner; the gear 62 is coaxially arranged on the screw 61, the gear 62 is meshed with the rack 63, and one end of the rack 63 is arranged on the movable mold 2; when the movable mold 2 moves towards or away from the fixed mold 1, the rack 63 drives the screw 61 to rotate through the gear 62, so that the two side pumping blocks 41 are forced to approach or move away from each other. Compared with the traditional single side core pulling, the two side pulling blocks 41 which are oppositely arranged have shorter sliding distance when the mold is opened, so that the mold opening efficiency can be improved. In addition, under the action of the driving assembly 6, when the movable mold 2 moves towards the direction of approaching the fixed mold 1, the rack 63 drives the screw rod 61 to rotate through the gear 62, so as to automatically force the two side pulling blocks 41 to approach each other; similarly, when the movable mold 2 moves away from the fixed mold 1, the rack 63 drives the screw 61 to rotate through the gear 62, so as to automatically force the two side pulling blocks 41 to move away from each other, and thus, a separate driving component does not need to be arranged for each side pulling block 41, and the cost is lower.

Referring to fig. 2, 12 and 17, in some embodiments of the present application, the number of the first side loose cores 3 is two, and the two first side loose cores 3 are symmetrically arranged; each first side loose core 3 is correspondingly provided with a screw 61 and at least two forming cavities, and each forming cavity is correspondingly provided with two side loose blocks 41; at least two groups of bidirectional threads are arranged on each screw rod 61, and each group of bidirectional threads are used for being matched with the threaded holes 411 on the two side pulling blocks 41. The layout mode can reasonably utilize the space of the mold, and the number of single injection molding products (namely the brackets 100) is increased, so that the production efficiency is improved.

Referring to fig. 2, 17 and 19, in some embodiments of the present application, the mold further comprises an ejection assembly 7, the ejection assembly 7 comprising a top plate 71, ejector pins 72 and a drive 73; one end of the fixed die 1, which is far away from the movable die 2, is provided with a through hole 11 for communicating with the forming cavity, and the ejector rod 72 is connected to the through hole 11 in a sliding manner; one end of the ejector rod 72 is fixed on the top plate 71, and the other end of the ejector rod 72 is flush with the inner wall of the forming cavity; the driving member 73 is disposed between the fixed mold 1 and the top plate 71, and the driving member 73 drives the push rod 72 to slide in the through hole 11 through the top plate 71. After the mold is opened, the driving member 73 drives the top plate 71 to move towards the fixed mold 1 so as to drive the ejector rod 72 to slide in the through hole 11, and thus the injection molding product (namely the bracket 100) can be automatically ejected. Of course, when the ejection mechanism is not provided, the carriage 100 may be taken out manually or by other equipment (e.g., a robot). The driving member 73 is conventional in itself, and may be, for example, a cylinder, an oil cylinder, or the like.

Referring to fig. 9, 10 and 11, in some embodiments of the present application, the mold further includes a feeding assembly 8, and the feeding assembly 8 includes a feeding table 81, a positioning member 82, a robot arm and a clamping member 83; the positioning piece 82 is arranged on the feeding table 81, and the positioning piece 82 is used for positioning the nut 200 on the feeding table 81; the clamping member 83 is disposed on a manipulator, and the manipulator is configured to drive the clamping member 83 to move, so that the clamping member 83 clamps the nut 200 on the feeding table 81 to the positioning portion 512. As shown in fig. 12 and 13, under the action of the feeding assembly 8, the nut 200 can be automatically assembled; specifically, the nut 200 is placed on the positioning member 82, and the nut 200 is positioned on the loading platform 81 through the positioning member 82; then, the clamping member 83 is driven by the manipulator to move to the position of the positioning member 82, so that the nut 200 is clamped by the clamping member 83; and finally, the clamping piece 83 is driven by the manipulator to move to the position of the positioning part 512, so that the nut 200 is automatically sleeved on the positioning part 512.

Referring to fig. 10 and 11, in some embodiments of the present disclosure, the positioning member 82 includes two V-shaped plates 821, and the two V-shaped plates 821 are disposed opposite to and spaced apart from the feeding table 81, so that a positioning region for positioning at least one nut 200 is formed between the two V-shaped plates 821. At least one nut 200 can be stacked through a positioning area formed between the two V-shaped plates 821 to realize the positioning between the nut 200 and the feeding table 81; in addition, a plurality of nuts 200 can be stacked in the positioning area at one time, so that stacking efficiency can be improved; in addition, an operating space is provided for the clamping member 83 to clamp the nut 200 and for the manual or robot stacking of the nut 200 through a gap between the two V-shaped plates 821. It should be noted that, when the plurality of clamping members 83 simultaneously clamp the nuts 200, the number of the nuts 200 stacked in the corresponding plurality of positioning areas is preferably the same, so that the plurality of clamping members 83 perform the clamping operation at the same height.

Referring to fig. 11, in some embodiments of the present application, at least one outer side of the nut 200 is provided with a groove 202; the clamping member 83 is a pneumatic finger, the pneumatic finger includes two clamping arms 831, and at least one clamping arm 831 is provided with a protrusion 832 for fitting the groove 202. On one hand, the stability of the two clamping arms 831 clamping the nut 200 can be improved through the mutual matching between the protrusions 832 and the grooves 202; on the other hand, under the action of the groove 202, the position of the injection molded product (i.e., the bracket 100) corresponding to the groove 202 is filled with plastic, so that the stability of the mutual combination between the nut 200 and the bracket 100 is improved. Preferably, the two clamping arms 831 are provided with protrusions 832, and six outer side surfaces of the nut 200 are provided with grooves 202, so that the stacking direction of the nut 200 does not need to be distinguished, and the operation is more convenient.

The using method of the die comprises the following steps of: the method comprises a feeding step, a mold closing step and a mold opening step.

A feeding step: as shown in fig. 10, the nuts 200 are stacked in the positioning area formed between the two V-shaped plates 821, and then the clamping member 83 (i.e., the pneumatic finger) is driven by the manipulator to move to the position of the positioning area, so that the two clamping arms 831 of the pneumatic finger are clamped on the uppermost nut 200 through the gap between the two V-shaped plates 821; as shown in fig. 12 and 13, the clamping member 83 (i.e. the pneumatic fingers) is driven by the robot to clamp the nut 200 onto the positioning portion 512, so that the arched portion 532 on the elastic rib 531 clamps the nut 200 onto the positioning portion 512, and then the two clamping arms 831 on the two pneumatic fingers are released, thereby completing the loading automatically.

A mold closing step: as shown in fig. 14 and 15, the first side core back 3 is driven by the hydraulic cylinder 32 to perform mold clamping, and in the process, due to the clamping action of the arch part 532, relative movement between the nut 200 and the positioning part 512 is not generated, so that the assembling precision of the nut 200 is high; referring to fig. 15 and fig. 16, the movable mold 2 is driven to perform mold closing, that is, the movable mold 2 drives the rack 63 to move synchronously, the rack 63 is meshed with the gear 62, so as to drive the screw 61 to rotate, under the action of the bidirectional screw, to force the two side pulling blocks 41 arranged oppositely to move oppositely, until the movable mold 2 closes, the two side pulling blocks 41 also close the mold synchronously (as shown in fig. 17 and fig. 18).

Opening the mold: as shown in fig. 18, after the raw material in the molding cavity is cooled to form the bracket 100, the first side core pulling 3 is driven by the hydraulic cylinder 32 to perform demolding, so that the first side core pulling 3 is separated from the bracket 100, in the process, since the length of the boss 21 is just equal to the length of the internal threaded hole 201 (that is, the length of the boss 21 along the axial direction of the internal threaded hole 201 is equal to the axial length of the internal threaded hole 201, that is, the length of the boss 21 along the axial direction of the internal threaded hole 201 is equal to the thickness of the nut 200 along the axial direction of the internal threaded hole 201), the boss 21 can just eject the positioning portion 512 and the elastic clamping rib out of the internal threaded hole 201, and one end of the boss 21, which is far away from the movable mold 2, cannot protrude out of the internal threaded hole 201, so as to avoid interference on the movement of the positioning portion 512, the elastic clamping member 53 and the first side core pulling 3; then, the movable die 2 is driven to perform demolding (when the core rod 22 is arranged, the core rod 22 moves along with the movable die 2), so that the movable die 2 (the core rod 22) is separated from the bracket 100, and meanwhile, the rack 63 drives the screw rod 61 to rotate through the rack 63, so that the two corresponding side pulling blocks 41 are far away from each other, and the two side pulling blocks 41 are separated from the bracket 100; finally, the top plate 71 is driven to move by the driving member 73, and the top plate 71 pushes the ejector rods 72 to eject the bracket 100 from the fixed mold 1.

The foregoing has described the principles, principal features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. A vehicle window glass bracket mould comprises a fixed mould, a movable mould, a first side loose core and a second side loose core, wherein the first side loose core and the second side loose core can be arranged on the fixed mould in a sliding manner, and a forming cavity for forming a bracket is enclosed among the fixed mould, the movable mould, the first side loose core and the second side loose core; the nut die is characterized in that a boss for being matched with an internal thread hole of a nut is protruded on the movable die, and the length of the boss is equal to that of the internal thread hole; the first side loose core is provided with a mounting hole aligned with the internal thread hole;

the die further comprises a fixing assembly, wherein the fixing assembly comprises a positioning column, an elastic piece and an elastic clamping piece; the positioning column is axially slidably arranged in the mounting hole, one end of the positioning column, which is far away from the nut, protrudes out of a limiting part, and the limiting part is used for limiting the positioning column to be separated from the mounting hole; one end of the positioning column, which is close to the nut, is provided with a positioning part which is used for being matched with the internal threaded hole, and the outer side wall of the positioning part is provided with a mounting groove; the elastic piece is arranged in the mounting hole and used for forcing the positioning column to slide towards the direction close to the nut; the elastic clamping piece is arranged on the mounting groove and is used for clamping the nut on the positioning part; when the movable die moves towards the direction close to the fixed die, the boss pushes the positioning column to slide towards the direction far away from the nut through the positioning part, and when the positioning part and the elastic clamping part move to the outside of the internal thread hole, the boss is matched with the internal thread hole.

2. The mold according to claim 1, wherein there are at least two of the mounting grooves, and at least two of the mounting grooves are arranged at equal intervals in a circumferential direction of the positioning part; the elastic clamping piece comprises at least two elastic ribs, and the at least two elastic ribs are arranged in the mounting groove in a one-to-one correspondence manner; one end of the elastic rib is fixed on the positioning column or the positioning part, and an arch part used for clamping the nut on the positioning part is formed at the other end of the elastic rib.

3. The mold according to claim 2, wherein an end of the arch portion deviating from the positioning column is bent inward to form a supporting portion, and the supporting portion abuts against an inner wall of the mounting groove.

4. The mold according to claim 1, wherein chamfers or fillets are arranged at two ends of the internal thread hole and/or at one end of the positioning part far away from the positioning column and/or at one end of the boss far away from the movable mold.

5. The mold according to claim 1, wherein the second side core comprises two side core pieces, the two side core pieces are slidably connected to the fixed mold, and threaded holes are formed in the two side core pieces in a sliding direction; the die further comprises a driving assembly, wherein the driving assembly comprises a screw, a gear and a rack; the screw rod is rotatably arranged on the fixed die and is provided with a bidirectional thread for connecting the two threaded holes in a threaded manner; the gear is coaxially arranged on the screw rod, the gear is meshed with the rack, and one end of the rack is arranged on the movable die; when the movable die moves towards the direction close to or away from the fixed die, the rack drives the screw rod to rotate through the gear, so that the two side pumping blocks are forced to be close to or away from each other.

6. The mold according to claim 5, characterized in that the number of the first side loose cores is two, and the two first side loose cores are symmetrically arranged; each first side loose core is provided with one corresponding screw and at least two corresponding forming cavities, and each forming cavity is provided with two corresponding side loose blocks; at least two groups of bidirectional threads are arranged on each screw rod, and each group of bidirectional threads are used for being matched with the threaded holes in the two side pumping blocks.

7. The mold of claim 1, further comprising an ejection assembly comprising a top plate, a ram, and a drive; one end of the fixed die, which is far away from the movable die, is provided with a through hole for communicating the forming cavity, and the ejector rod is connected to the through hole in a sliding manner; one end of the ejector rod is fixed on the top plate, and the other end of the ejector rod is flush with the inner wall of the forming cavity; the driving piece is arranged between the fixed die and the top plate, and the driving piece drives the ejector rod to slide in the through hole through the top plate.

8. The mold of any one of claims 1-7, further comprising a loading assembly comprising a loading table, a positioning member, a robot, and a clamping member; the positioning piece is arranged on the feeding table and used for positioning the nut on the feeding table; the clamping piece is arranged on the manipulator, and the manipulator is used for driving the clamping piece to move, so that the nut on the feeding table is clamped on the positioning part by the clamping piece.

9. The mold according to claim 8, wherein the positioning member comprises two V-shaped plates, and the two V-shaped plates are oppositely and separately arranged on the feeding table, so that a positioning area for positioning at least one nut is formed between the two V-shaped plates.

10. The mold of claim 8, wherein at least one outer side of the nut is provided with a groove; the clamping piece is a pneumatic finger, the pneumatic finger comprises two clamping arms, and at least one clamping arm is provided with a bulge used for adapting to the groove.

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