CN220627645U - Jig with functions of rubberizing and blanking - Google Patents

Abstract

The utility model relates to the technical field of non-standard tool fixture design, in particular to a fixture with functions of rubberizing and blanking, which comprises a force bearing frame, a rubberizing function part and a pushing and blanking function part. The rubberizing functional part is loaded by a bearing frame and comprises a lower template, an upper template, a first negative pressure gas supply unit and a second negative pressure gas supply unit. The first negative pressure gas supply unit is matched with the lower template, and the metal material belt is adsorbed on the lower template. The second negative pressure gas supply unit is matched with the upper template, and the pressure-sensitive double faced adhesive tape is adsorbed on the upper template. When the upper template is positioned relative to the lower template, the pressure-sensitive double-sided adhesive tape can be bonded with the metal material belt under the action of pressure, and the metal material belt is positioned and kept in a flattened state due to opposite extrusion. After the pressure-sensitive double-sided adhesive is bonded, the push-up blanking functional part acts, and the weak connection area preset on the metal material belt is torn off due to the push-up force, so that a plurality of decorative key finished products with good quality can be separated in batches.

Description

Jig with functions of rubberizing and blanking

Technical Field

The utility model relates to the technical field of non-standard tool jig design, in particular to a jig with functions of rubberizing and blanking.

Background

The decorative key is sleeved on the key body to play a role in decoration. As shown in fig. 1, the decoration key is an assembly, and is mainly composed of a decoration key metal piece and a pressure-sensitive double-sided adhesive tape. As shown in fig. 2, a set groove is formed in the decorative key metal piece, and a pressure-sensitive double-sided tape is also pre-adhered in the set groove in order to improve the bonding strength with the key body.

For the current state of the industry, the preparation process of the decorative key is approximately as follows: firstly, forming a metal material belt, performing a profiling operation on a metal strip by means of a profiling die to form a plurality of decorative key metal pieces thereon, and then performing a blanking operation on the metal strip by means of a blanking die; then, transferring the metal material strips to a rubberizing station, putting the pressure-sensitive double-sided adhesive tapes into the sleeving grooves of the metal pieces of the decorative keys piece by piece, and performing pressure-applying adhesion by means of a rubberizing jig; then, the metal material strips are transferred to a cutting and blanking station, and connecting metal between each decorative key metal piece and the frame is cut off by means of a blanking jig, so that finished decorative key products can be prepared in batches. The preparation process has the following problems that 1) the whole efficiency of the production line is low, and more workers are required to be equipped, so that the manufacturing cost of single products is high; 2) In the blanking station, the metal material belt is required to be positioned again, the positioning error cannot be eliminated, the cutting deviation amount is inevitably exceeded, the periphery of a part of finished product of the decorative key is provided with metal burrs (caused by insufficient cutting amount) or concave notches (caused by excessive cutting amount), and a large amount of manpower and material resources are consumed for finishing in the follow-up process; 3) The production line is relatively long, occupies a large space field, and is unfavorable for the overall planning and layout of workshops. Thus, a technician is required to solve the above problems.

Disclosure of Invention

Therefore, in view of the above-mentioned existing problems and drawbacks, the subject group of the present utility model gathers related data, and through multiple evaluations and consideration, and continuous experiments and modifications by subject group personnel, the tool with both the rubberizing and blanking functions is finally generated.

In order to solve the technical problems, the utility model relates to a jig with functions of rubberizing and blanking, which is used for bonding pressure-sensitive double-sided adhesive tapes in a sleeved groove of a decorative key metal piece. The jig with the functions of rubberizing and blanking comprises a bearing frame, a rubberizing functional part and a push-up blanking functional part. The rubberizing functional part is loaded by a bearing frame and comprises a lower template, an upper template, a first negative pressure gas supply unit and a second negative pressure gas supply unit. The first negative pressure gas supply unit is matched with the lower template, and a metal material belt on which a plurality of decorative key metal pieces are distributed in a whole way is adsorbed on the lower template under the action of negative pressure effect. The second negative pressure gas supply unit is matched with the upper template, and the pressure-sensitive double faced adhesive tape is adsorbed on the upper template under the action of negative pressure effect. When the upper template is positioned relative to the lower template, the pressure-sensitive double-sided adhesive tape can be bonded with the metal material belt under the action of pressure, and the metal material belt is positioned and kept in a flattened state due to opposite extrusion. The ejector blanking function is also borne by the load-carrying frame and cooperates with the rubberizing function. After the pressure-sensitive double-sided adhesive is bonded, the pushing and blanking functional part acts, and the weak connection area preset on the metal material belt is torn off under the action of pushing force, so that a plurality of decorative key finished products bonded with the pressure-sensitive double-sided adhesive are separated concomitantly.

As a further improvement of the disclosed solution, the load-carrying frame comprises a top plate, a bottom plate and a supporting unit. The top plate is positioned right above the bottom plate and is parallel to the bottom plate. The support unit is composed of a plurality of support columns which are propped against between the top plate and the bottom plate. The upper surface of the top plate is used as a mounting datum for the lower die plate and both are locked by means of fasteners.

As a further improvement of the technical scheme disclosed by the utility model, the ejection blanking functional part comprises a telescopic hydraulic cylinder, a mounting substrate and a pushing cutter unit. The mounting substrate is positioned right below the top plate and is parallel to the top plate. The telescopic hydraulic cylinder is used for driving the mounting base plate to execute lifting movement, and the telescopic hydraulic cylinder is vertically mounted on the bottom plate. The pushing cutter unit is used for pushing and tearing the metal material belt and consists of a front pushing cutter and a rear pushing cutter. The front pushing cutter and the rear pushing cutter are vertically arranged on the top wall of the mounting substrate, and the front pushing cutter and the rear pushing cutter are spaced along the front-rear direction by a set distance. The top plate is provided with a first long-strip-shaped process gap for the front-mounted pushing cutter to freely pass through and a second long-strip-shaped process gap for the rear-mounted pushing cutter to freely pass through. The lower template is provided with a third long strip-shaped process gap which is used for the front-positioned pushing knife to freely pass through and is in positive alignment with the first long strip-shaped process gap, and a fourth long strip-shaped process gap which is used for the rear-positioned pushing knife to freely pass through and is in positive alignment with the second long strip-shaped process gap. The upper template is respectively provided with a front cutter avoiding groove which keeps alignment with the front cutter and a rear cutter avoiding groove which keeps alignment with the rear cutter.

As a further improvement of the technical scheme disclosed by the utility model, a plurality of profiling grooves for arranging decorative key metal pieces on the metal material belt are formed on the top wall of the lower template between the third strip-shaped process notch and the fourth strip-shaped process notch. The profiling grooves cooperate to realize the adsorption positioning of the metal material belt. A plurality of bosses matched with the profile of the profiling groove are formed on the top wall of the upper template. The bosses cooperate to realize the adsorption positioning of the pressure-sensitive double faced adhesive tape.

As a further improvement of the disclosed solution, the first negative pressure gas supply unit comprises a first negative pressure generator, a first hose and a first quick connector. The first quick connector adopts a screw pair connection mode to realize the insertion with the lower template, and a first air passage communicated with each profiling groove is formed in the lower template in a matched mode. The first negative pressure generator is used for continuously generating negative pressure air, and the negative pressure air is supplied to the first air passage by means of the first hose and the first quick connector. The second negative pressure gas supply unit comprises a second negative pressure generator, a second hose and a second quick connector. The second quick connector adopts a screw pair connection mode to realize the insertion with the upper template, and a second air passage communicated with each boss is formed in the upper template in a matched mode. The second negative pressure generator is used for continuously generating negative pressure air, and the negative pressure air is supplied to the second air passage by means of the second hose and the second quick connector.

As a further improvement of the technical scheme disclosed by the utility model, the ejection blanking functional part also comprises a guide unit. When the telescopic hydraulic cylinder is activated, the guide unit causes the mounting substrate to directionally perform a displacement motion in the up-down direction. The guide unit is composed of a left guide rod and a right guide rod. The left guide rod and the right guide rod are arranged along the left-right direction, are inserted on the top plate and extend downwards for a set length. The mounting base plate is respectively provided with a left-arranged guide structure for the left-arranged guide rod to freely pass through and a right-arranged guide structure for the right-arranged guide rod to freely pass through.

As a further improvement of the technical scheme disclosed by the utility model, the left-arranged guide structure is preferably a left-arranged guide through hole which is arranged on the mounting substrate and is matched with the outer diameter of the left-arranged guide rod. The right-placed guide structure is preferably a right-placed guide through hole which is formed on the mounting substrate and is matched with the outer diameter of the right-placed guide rod in size.

Of course, as another modification of the above technical solution, the left-placed guiding structure may also be a left-placed antiwear guiding sleeve embedded in the left side of the mounting substrate and matched with the left-placed guiding rod. The right-placed guide structure can also be preferably a right-placed wear-resistant guide sleeve which is embedded on the right side of the mounting substrate and is matched with the right-placed guide rod for application.

As a further improvement of the technical scheme disclosed by the utility model, the ejection blanking functional part also comprises a pressing locking unit. When the upper template is completed with the falling and fixing action, the upper template is tightly attached to the lower template under the action of the downward pressure from the downward pressing and locking unit. The pressing locking unit comprises a left telescopic rotary hydraulic cylinder and a right telescopic rotary hydraulic cylinder. The left telescopic rotary hydraulic cylinder and the right telescopic rotary hydraulic cylinder are respectively and detachably fixed on the left side and the right side of the lower die plate. The left side and the right side of the lower template are respectively provided with a left avoidance through hole for the piston rod of the left telescopic rotary hydraulic cylinder to freely pass through and a right avoidance through hole for the piston rod of the right telescopic rotary hydraulic cylinder to freely pass through. A left process notch which is beneficial to the installation of the left telescopic rotary hydraulic cylinder and a right process notch which is beneficial to the installation of the right telescopic rotary hydraulic cylinder are respectively arranged on the left side and the right side of the top plate.

As a further improvement of the technical scheme disclosed by the utility model, the rubberizing functional part also comprises a limiting unit. The limiting unit is used for ensuring that the upper die plate accurately falls down relative to the lower die plate and comprises a left limiting pin and a right limiting pin. The left-position limiting pin and the right-position limiting pin are oppositely positioned along the left-right direction and are inserted on the lower die plate, and correspondingly, the upper die plate is provided with a left-position limiting pin hole matched with the left-position limiting pin and a right-position limiting pin hole matched with the right-position limiting pin.

By adopting the technical scheme, the disclosed jig organically fuses the rubberizing function part and the ejection blanking function part, so that the operation of sequentially bonding the pressure-sensitive double-sided adhesive in the sleeved groove of the decorative key metal piece and the operation of removing the redundant metal part to independently form the decorative key finished product can be sequentially completed at the same station, and therefore, the disclosed jig has the following beneficial technical effects in practical application:

1) The whole production efficiency of the production line can be greatly improved, the number of required equipment workers can be greatly reduced, and the manufacturing cost of the jig is reduced by 40% compared with that of a single-function jig, so that good bedding is made for the reduction of the manufacturing cost of finished products of decorative keys;

2) Because the pressure-sensitive double-sided adhesive tape bonding operation and the ejection blanking operation are concentrated at the same station, the metal material belt is not required to be subjected to secondary positioning, and the same positioning reference is used, so that the occurrence probability of exceeding the standard of the cutting deviation amount can be effectively reduced, and the finished product of the formed decorative key is ensured to have good appearance quality;

3) On the premise of ensuring the quality of finished products of the decorative keys, the production line can be effectively integrated, the total length of the decorative key production line can be effectively shortened, and the layout of workshops is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a finished product of a decorative key according to the present utility model.

Fig. 2 is a schematic perspective view of a metal member for a decorative key according to the present utility model.

Fig. 3 is a schematic perspective view of a metal strip according to the present utility model.

Fig. 4 is a schematic perspective view of a fixture with functions of rubberizing and blanking in the utility model.

Fig. 5 is a top view of fig. 4.

Fig. 6 is a cross-sectional view A-A of fig. 5.

Fig. 7 is a B-B cross-sectional view of fig. 6.

Fig. 8 is a schematic perspective view of a force-bearing frame in the jig with the functions of rubberizing and blanking.

Fig. 9 is a schematic perspective view of a lower die plate in the fixture with the functions of rubberizing and blanking.

Fig. 10 is a perspective view of an upper die plate in the jig with the functions of rubberizing and blanking.

Fig. 11 is a schematic perspective view of another view angle of the upper die plate in the jig with the functions of rubberizing and blanking.

1-a force-bearing frame; 11-top plate; 111-a first elongated process gap; 112-a second elongated process gap; 113-left process notch; 114-right process notch; 12-a bottom plate; 13-a support unit; 131-supporting columns; 2-a rubberizing function part; 21-lower template; 211-a third elongated process gap; 212-fourth elongated process indentations; 213-profiling grooves; 214-a first airway; 215-left avoiding through holes; 216-right avoiding through holes; 22-upper template; 221-boss; 222-a second airway; 223-front knife avoiding groove; 224-rear knife-avoiding groove; 225-left limiting pin holes; 226-right limit pin holes; 23-a first negative pressure gas supply unit; 231-a first quick connector; 24-a second negative pressure gas supply unit; 241-a second quick connector; 25-a limiting unit; 251-left limit pin; 252-right limit pin; 3-pushing and blanking functional parts; 31-a telescopic hydraulic cylinder; 32-mounting a substrate; 321-left-placed guide structure; 3211-left-arranged antiwear guide sleeve; 322-right guide structure; 3221-right-arranged antiwear guide sleeve; 33-a pushing cutter unit; 331-a front pushing knife; 332-a rear pushing knife; 34-a guide unit; 341-left guide bar; 342-right guide bar; 35-pressing down the locking unit; 351-left telescopic rotary hydraulic cylinder; 352-right telescopic rotary hydraulic cylinder.

Detailed Description

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "upper", "lower", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The present disclosure is further described in detail below with reference to specific embodiments, and fig. 4, 5 and 6 show a schematic perspective view, a plan view and A-A cross-sectional views of a jig with both the rubberizing and blanking functions in the present disclosure, which are mainly composed of a load-carrying frame 1, a rubberizing function portion 2, a push blanking function portion 3 and the like. The rubberizing functional portion 2 is borne by the bearing frame 1 and comprises a lower die plate 21, an upper die plate 22, a first negative pressure gas supply unit 23 and a second negative pressure gas supply unit 24. As shown in fig. 9, the top wall of the lower die plate 21 is formed with a plurality of profiling grooves 213 for placing the decorative key metal pieces arranged on the metal strip. The first negative pressure gas supply unit 23 is matched with the lower template 21, and a plurality of decorative key metal pieces arranged on the metal material belt can be stably adsorbed in the profiling grooves 213 corresponding to the decorative key metal pieces under the negative pressure effect. As shown in fig. 10 and 11, a plurality of bosses 221 are formed on the top wall of the upper die plate 22 to match the profile groove profile 213. The second negative pressure gas supply unit 24 is matched with the upper template 22, and a plurality of pressure-sensitive double-sided adhesive tapes are adsorbed on the boss 221 in a one-to-one correspondence under the negative pressure effect. When the upper die plate 22 is positioned relative to the lower die plate 21, the pressure-sensitive double-sided adhesive tape is bonded with the metal material strip under the action of the downward pressure of the boss 221, and the metal material strip is positioned and kept in a flattened state due to the opposite extrusion of the lower die plate 21 and the upper die plate 22. The push-up blanking function part 3 is also loaded by the bearing frame 1 and cooperates with the rubberizing function part 2 for tearing the weak connection area preset on the metal material belt to form a bedding for the batch forming of the finished products of the decorative keys.

The preparation process flow of the finished product of the decorative key is approximately as follows: 1) Preparing a metal material belt; performing profiling operation on the metal strip by means of a profiling die to form a plurality of decorative key metal pieces thereon, and then performing blanking operation on the metal strip by means of a blanking die to hollowed out the metal strip, removing non-process-necessary areas to enable direct connection between adjacent decorative key metal pieces to be lost, reducing the connection strength between the decorative key metal pieces and the frame, and facilitating independent separation molding of the subsequent decorative key metal pieces (as shown in fig. 3); 2) A feeding stage; the second negative pressure gas supply unit 24 maintains a start state, and a worker sequentially sticks a plurality of pressure-sensitive double-sided tapes to the boss 221 of the upper template 22, and is favorable for maintaining stable positioning of the air negative pressure effect; subsequently, the same worker places the metal strip on the lower die plate 21 and ensures that each of the decorative key metal pieces thereon is kept aligned with the profiling groove 213, and concomitantly activates the first negative pressure gas supply unit 23 to ensure stable adsorption of each of the decorative key metal pieces; or, two workers are utilized to cooperatively divide work; 3) A rubberizing stage; the worker positions the upper template 22 on the lower template 21, and the pressure-sensitive double-sided adhesives are stably adhered to the bottom wall of the sleeving groove of the decorative key metal piece opposite to the upper template due to the pressure effect; when the upper die plate 22 is set, the alignment accuracy with the lower die plate 21 needs to be strictly controlled; 4) A blanking stage; the ejector blanking function part 3 acts, and the preset weak connection area on the metal material belt is torn off due to the ejector force, so that a plurality of finished products of the decorative keys bonded with the pressure-sensitive double-sided adhesive tape are separated concomitantly (as shown in fig. 1).

The fixture disclosed by the utility model organically fuses the rubberizing function part and the ejection blanking function part, so that the operation of sequentially bonding the pressure-sensitive double-sided adhesive in the sleeved groove of the decorative key metal piece and the operation of removing the redundant metal part to independently form a finished decorative key product can be sequentially completed by the metal material belt at the same station, and therefore, the fixture at least has the following beneficial technical effects in practical application:

1) The whole production efficiency of the production line can be greatly improved, the number of required equipment workers can be greatly reduced, and the manufacturing cost of the jig is reduced by 40% compared with that of a single-function jig, so that good bedding is made for the reduction of the manufacturing cost of finished products of decorative keys;

2) Because the pressure-sensitive double-sided adhesive tape bonding operation and the ejection blanking operation are concentrated at the same station, the metal material belt is not required to be subjected to secondary positioning, and the same positioning reference is used, so that the occurrence probability of exceeding the standard of the cutting deviation amount can be effectively reduced, and the finished product of the formed decorative key is ensured to have good appearance quality;

3) On the premise of ensuring the quality of finished products of the decorative keys, the production line can be effectively integrated, the total length of the decorative key production line can be effectively shortened, and the layout of workshops is facilitated.

As shown in fig. 8, the load-carrying frame 1 is mainly composed of a top plate 11, a bottom plate 12, a supporting unit 13, and the like. Wherein the top plate 11 is located directly above the bottom plate 12 and is kept parallel to the bottom plate 12. The support unit 13 is composed of 4 diagonally distributed support columns 131 which are abutted between the top plate 11 and the bottom plate 12. The upper surface of the top plate 11 is used as a mounting reference surface of the lower die plate 21, and both are locked by means of fasteners. Thus, on the one hand, the structural strength of the bearing frame 1 is ensured to meet the application requirements so as to ensure reliable burden on the lower die plate 21, the upper die plate 22, the first negative pressure gas supply unit 23 and the second negative pressure gas supply unit 24; on the other hand, the manufacturing cost is effectively reduced, the dead weight of the structure is lightened, and the design structure is simplified as much as possible.

In order to ensure that the upper die plate 22 always has good positioning accuracy relative to the lower die plate 21 in the process of performing the drop displacement, and further ensure that the pressure-sensitive double-sided adhesive tape is correctly attached to each decorative key metal piece, the rubberizing function portion 2 may be further optimized in structure, and as shown in fig. 5 and 6, the rubberizing function portion 2 is additionally provided with a limiting unit 25. The limiting unit 25 is used for ensuring that the upper die plate 22 falls down accurately relative to the lower die plate 21, and comprises a left limiting pin 251 and a right limiting pin 252. The left and right position-limiting pins 251 and 252 are oppositely positioned along the left and right directions and are respectively inserted on the lower die plate 21, and correspondingly, the upper die plate 22 is respectively provided with a left position-limiting pin hole 225 adapted to the left position-limiting pin 251 and a right position-limiting pin hole 226 adapted to the right position-limiting pin 252 (as shown in fig. 10 and 11).

As shown in fig. 6 and 7, the ejector blade blanking function unit 3 is mainly composed of a telescopic hydraulic cylinder 31, a mounting board 32, a blade unit 33, and the like. The mounting board 32 is located directly below the top plate 11 and is parallel to the top plate 11. The telescopic hydraulic cylinder 31 is used to drive the mounting base plate 32 to perform a lifting motion, and is vertically mounted on the base plate 12. The pushing blade unit 33 is used for pushing and tearing the metal strip, and is composed of a front pushing blade 331 and a rear pushing blade 332. The front pushing blade 331 and the rear pushing blade 332 are both vertically mounted on the top wall of the mounting substrate 32, and are spaced apart by a set distance along the front-rear direction. As shown in fig. 8, a first elongated process gap 111 through which the front pushing blade 331 freely passes and a second elongated process gap 112 through which the rear pushing blade 332 freely passes are formed on the top plate 11. As shown in fig. 9, a third elongated process gap 211 for the front pushing blade 331 to freely pass through and align with the first elongated process gap 111, and a fourth elongated process gap 212 for the rear pushing blade 332 to freely pass through and align with the second elongated process gap 112 are formed on the lower die plate 21. As shown in fig. 10 and 11, the upper die plate 22 is provided with a front cutter avoiding groove 223 which is aligned with the front cutter 331 and a rear cutter avoiding groove 224 which is aligned with the rear cutter 332. After the rubberizing operation is finished, the telescopic hydraulic cylinder 31 is started, the mounting substrate 32 upwards performs displacement movement under the action of pushing force, the front pushing cutter 331 sequentially penetrates through the first long strip-shaped process notch 111 and the third long strip-shaped process notch 211 until part of the front pushing cutter penetrates into the front shielding cutter groove 223, meanwhile, the front pushing cutter 332 sequentially penetrates through the second long strip-shaped process notch 112 and the fourth long strip-shaped process notch 212 until part of the front pushing cutter penetrates into the rear shielding cutter groove 224, and in the process, the preset weak connection areas on the front side and the rear side of the metal material belt are torn due to the pushing force, and a plurality of decorative key finished products adhered with the pressure-sensitive double-sided adhesive tape are separated in batches.

As shown in fig. 4 and 5, the first negative pressure gas supply unit 23 is mainly composed of a first negative pressure generator (not shown), a first hose (not shown), a first quick connector 231, and the like. The first quick connector 231 takes the form of a screw pair connection to realize the insertion with the lower die plate 21, and the first air passage 214 (shown in fig. 9) communicated with each profiling groove 213 is formed in the lower die plate 21 correspondingly. The first negative pressure generator is used for continuously generating negative pressure air, and the negative pressure air is supplied to the first air channel 214 by means of the first hose and the first quick connector 231, so that after each decorative button metal piece falls down in the profiling groove 213, the decorative button metal piece is stably adsorbed by the negative pressure of the air, the adsorption force is a planar force, and the deformation phenomenon caused by the local overrun adsorption force is effectively avoided.

As shown in fig. 4 and 5, the second negative pressure gas supply unit 24 is mainly composed of a second negative pressure generator, a second hose, a second quick connector 241, and the like. The second quick connector 241 takes the form of a screw pair connection to achieve the insertion with the upper die plate 22, and correspondingly, a second air passage 222 (as shown in fig. 10 and 11) communicated with each boss 221 is formed inside the upper die plate 22. The second negative pressure generator is used for continuously generating negative pressure air, and the second hose and the second quick connector 241 are used for supplying negative pressure air to the second air channel 222, so that after the pressure-sensitive double-sided adhesives are contacted with the corresponding bosses 221, the pressure-sensitive double-sided adhesives are stably adsorbed under the action of negative pressure of the air, the adsorption force is a planar force, deformation phenomena caused by the fact that the local part of the pressure-sensitive double-sided adhesives are subjected to the action of excessive adsorption force are effectively avoided, and finally, the pressure-sensitive double-sided adhesives can be flatly attached to the sleeved grooves of the decorative key metal pieces.

As shown in fig. 6 and 7, the ejector blanking function unit 3 is further provided with a guide unit 34. When the telescopic cylinder 31 is activated, the mounting base plate 32 is directionally displaced in the up-down direction with the aid of the guide unit 34. The guide unit 34 is composed of a left guide bar 341 and a right guide bar 342. The left guide bar 341 and the right guide bar 342 are aligned in the left-right direction, are inserted into the top plate 11, and extend downward by a predetermined length. The mounting substrate 32 is provided with a left guide structure 321 through which the left guide bar 341 freely passes and a right guide structure 322 through which the right guide bar 342 freely passes. For the present embodiment, the left-hand guiding structure 321 is preferably a left-hand wear-resistant guiding sleeve 3211 embedded in the left side of the mounting base plate 32 and applied in cooperation with the left-hand guiding rod 341. The right guide structure 322 is preferably a right wear guide sleeve 3221 embedded in the right side of the mounting base plate 32 for mating with the right guide rod 342.

Of course, as another modification of the above-mentioned embodiment, the left guiding structure 321 may be a left guiding through hole (not shown) formed on the mounting substrate 32 and adapted to the outer diameter of the left guiding rod 341. The right guide structure 322 is preferably a right guide through hole (not shown) formed in the mounting substrate 32 and adapted to the outer diameter of the right guide rod 342. It should be noted that, in the process of performing blanking for a long period of time, the left-placed guide through hole and the right-placed guide through hole are extremely liable to wear due to repeated friction force, and thus the aperture size or the outer shape thereof is caused to be out of tolerance, and eventually the directional movement accuracy of the mounting substrate 32 tends to be deteriorated. In view of this, when the mounting substrate 32 is drilled by machining, a heat treatment operation is performed on the vicinity of the entire or left-hand and right-hand guide through holes to enhance the abrasion resistance thereof.

Finally, as shown in fig. 4, 5 and 6, the push-up blanking function portion is further provided with a push-down locking unit 35. When the upper die plate 22 completes the falling action, the upper die plate 22 is tightly attached to the lower die plate 21 under the action of the downward pressure from the downward pressure locking unit 35, so that the phenomenon that the upper die plate 22 is separated from the lower die plate 21 in advance due to insufficient dead weight to resist the pushing force in the process of executing the cutting blanking operation is avoided. The push-down locking unit 35 includes a left-side telescopic rotary hydraulic cylinder 351 and a right-side telescopic rotary hydraulic cylinder 352. The left telescopic rotary cylinder 351 and the right telescopic rotary cylinder 352 are detachably fixed to the left and right sides of the lower die plate 21, respectively. Left-side avoidance holes 215 through which the piston rods of the left-side telescopic rotary hydraulic cylinders 351 pass freely and right-side avoidance holes 216 through which the piston rods of the right-side telescopic rotary hydraulic cylinders 352 pass freely are respectively formed on the left and right sides of the lower die plate 21 (as shown in fig. 9). Left process notches 113 for facilitating the loading of the left telescopic rotary hydraulic cylinder 351 and right process notches 114 for facilitating the loading of the right telescopic rotary hydraulic cylinder 352 are respectively formed on the left and right sides of the top plate 11 (as shown in fig. 8). In practical application, when the upper die plate 22 falls down relative to the lower die plate 21, the left telescopic rotary hydraulic cylinder 351 and the left telescopic rotary hydraulic cylinder 351 are driven simultaneously, and the piston rods of the left telescopic rotary hydraulic cylinder 351 have an axial telescopic function and a circumferential rotary motion, so that the two left pressing plates and the right pressing plates matched with the piston rods can be cooperated to stably press the upper die plate 22.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The fixture with the functions of rubberizing and blanking is used for adhering the pressure-sensitive double-sided adhesive tape into a sleeved groove of a decorative key metal piece, and is characterized by comprising a force bearing frame, a rubberizing functional part and a pushing blanking functional part; the rubberizing functional part is borne by the bearing frame and comprises a lower template, an upper template, a first negative pressure gas supply unit and a second negative pressure gas supply unit; the first negative pressure gas supply unit is matched with the lower template, and a metal material belt on which a plurality of decorative key metal pieces are integrally arranged is adsorbed on the lower template under the action of negative pressure effect; the second negative pressure gas supply unit is matched with the upper template, and the pressure-sensitive double-sided adhesive tape is adsorbed on the upper template under the action of negative pressure effect; after the upper die plate falls down relative to the lower die plate, the pressure-sensitive double-sided adhesive tape can be bonded with the metal material belt under the action of pressure, and the metal material belt is positioned and kept in a flattened state due to opposite extrusion; the ejection blanking functional part is also borne by the bearing frame and cooperates with the rubberizing functional part; after the pressure-sensitive double-sided adhesive is bonded, the push-push blanking functional part acts, and the weak connection area preset on the metal material belt is torn off under the push force action, so that a plurality of decorative key finished products bonded with the pressure-sensitive double-sided adhesive are separated concomitantly.

2. The jig with the rubberizing and blanking functions according to claim 1, wherein the force bearing frame comprises a top plate, a bottom plate and a supporting unit; the top plate is positioned right above the bottom plate and is parallel to the bottom plate; the supporting unit is composed of a plurality of supporting columns propped against between the top plate and the bottom plate; the upper surface of the top plate is used as a mounting reference surface for the lower die plate, and both are locked by means of fasteners.

3. The jig with the functions of rubberizing and blanking according to claim 2, wherein the ejection blanking function part comprises a telescopic hydraulic cylinder, a mounting substrate and a pushing cutter unit; the mounting substrate is positioned right below the top plate and is parallel to the top plate; the telescopic hydraulic cylinder is used for driving the mounting substrate to execute lifting movement, and is vertically arranged on the bottom plate; the pushing cutter unit is used for pushing and tearing the metal material belt and consists of a front pushing cutter and a rear pushing cutter; the front pushing cutter and the rear pushing cutter are vertically arranged on the top wall of the mounting substrate, and the front pushing cutter and the rear pushing cutter are spaced by a set distance along the front-rear direction; a first strip-shaped process gap for the front pushing cutter to freely pass through and a second strip-shaped process gap for the rear pushing cutter to freely pass through are formed in the top plate; a third strip-shaped process notch which is used for the front-mounted pushing cutter to freely pass through and is in positive alignment with the first strip-shaped process notch and a fourth strip-shaped process notch which is used for the rear-mounted pushing cutter to freely pass through and is in positive alignment with the second strip-shaped process notch are formed in the lower die plate; the upper template is respectively provided with a front cutter avoiding groove which keeps alignment with the front cutter and a rear cutter avoiding groove which keeps alignment with the rear cutter.

4. The fixture with the functions of rubberizing and blanking according to claim 3, wherein a plurality of profiling grooves for placing decorative key metal pieces arranged on a metal material belt are formed on the top wall of the lower template between the third strip-shaped process notch and the fourth strip-shaped process notch; the profiling grooves cooperate to realize the adsorption positioning of the metal material belt; a plurality of bosses matched with the profile of the profiling groove are formed on the top wall of the upper template; the bosses cooperate to realize the adsorption positioning of the pressure-sensitive double faced adhesive tape.

5. The fixture with the functions of rubberizing and blanking according to claim 4, wherein the first negative pressure gas supply unit comprises a first negative pressure generator, a first hose and a first quick connector; the first quick connector adopts a screw pair connection mode to realize the insertion of the lower template, and a first air passage communicated with each profiling groove is formed in the lower template in a matched manner; the first negative pressure generator is used for continuously generating negative pressure air and supplying the negative pressure air to the first air channel by means of the first hose and the first quick connector; the second negative pressure gas supply unit comprises a second negative pressure generator, a second hose and a second quick connector; the second quick connector adopts a screw pair connection mode to realize the insertion of the upper template, and a second air passage communicated with each boss is formed in the upper template in a matched manner; the second negative pressure generator is used for continuously generating negative pressure air and supplying the negative pressure air to the second air passage by means of the second hose and the second quick connector.

6. The jig with both rubberizing and blanking functions according to claim 3, wherein the push-push blanking function part further comprises a guiding unit; when the telescopic hydraulic cylinder is started, the guide unit enables the mounting substrate to directionally perform displacement movement along the up-down direction; the guide unit consists of a left guide rod and a right guide rod; the left guide rod and the right guide rod are positioned along the left-right direction, are inserted on the top plate and extend downwards for a set length; the mounting substrate is respectively provided with a left-arranged guide structure for the left-arranged guide rod to freely pass through and a right-arranged guide structure for the right-arranged guide rod to freely pass through.

7. The fixture with the rubberizing and blanking functions according to claim 6, wherein the left-placed guide structure is a left-placed guide through hole which is arranged on the mounting substrate and is matched with the outer diameter of the left-placed guide rod in size; the right-placed guide structure is a right-placed guide through hole which is formed in the mounting substrate and is matched with the outer diameter of the right-placed guide rod in size.

8. The jig with the rubberizing and blanking functions according to claim 6, wherein the left-placed guide structure is a left-placed wear-resistant guide sleeve embedded at the left side of the mounting substrate and matched with the left-placed guide rod for application; the right-placed guide structure is a right-placed wear-resistant guide sleeve embedded on the right side of the mounting substrate and matched with the right-placed guide rod.

9. The fixture with the functions of rubberizing and blanking according to claim 3, wherein the ejection blanking function part further comprises a pressing locking unit; when the upper template finishes the falling and fixing action, the upper template is tightly attached to the lower template under the action of the downward pressure from the downward pressure locking unit; the pressing locking unit comprises a left telescopic rotary hydraulic cylinder and a right telescopic rotary hydraulic cylinder; the left telescopic rotary hydraulic cylinder and the right telescopic rotary hydraulic cylinder are respectively and detachably fixed on the left side and the right side of the lower die plate; a left avoidance through hole for the piston rod of the left telescopic rotary hydraulic cylinder to freely pass through and a right avoidance through hole for the piston rod of the right telescopic rotary hydraulic cylinder to freely pass through are respectively formed on the left side and the right side of the lower template; the left and right sides of the top plate are respectively provided with a left process gap which is beneficial to the loading of the left telescopic rotary hydraulic cylinder and a right process gap which is beneficial to the loading of the right telescopic rotary hydraulic cylinder.

10. The jig with both rubberizing and blanking functions according to any one of claims 1 to 9, wherein the rubberizing function portion further includes a limiting unit; the limiting unit is used for ensuring that the upper die plate falls down accurately relative to the lower die plate and comprises a left limiting pin and a right limiting pin; the left limiting pin and the right limiting pin are oppositely positioned along the left-right direction and are inserted on the lower die plate, and correspondingly, the upper die plate is provided with a left limiting pin hole matched with the left limiting pin and a right limiting pin hole matched with the right limiting pin.