CN211437676U

CN211437676U - A punch press for LED lamp support burst processing

Info

Publication number: CN211437676U
Application number: CN202020022559.5U
Authority: CN
Inventors: 王赞成; 李宁博; 匡保兴; 王春富
Original assignee: Jiangxi Pengbowei Technology Co ltd
Current assignee: Jiangxi Pengbowei Technology Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-09-08
Anticipated expiration: 2030-01-07

Abstract

A punch press for slicing and processing an LED lamp support comprises an upper die and a lower die, wherein the LED lamp support which is not sliced is positioned between the upper die and the lower die, and the lower die comprises a base, a forming and separating knife edge arranged on the base and a prepressing insert penetrating through the forming and separating knife edge and the base; the upper die comprises a fixed seat and a guide seat, a forming separation punch is arranged in the fixed seat, one end of the forming separation punch is connected with the driving assembly, the other end of the forming separation punch is a punch, and cutters are respectively formed on two sides of the tail end of the punch; the LED lamp support comprises a metal substrate and a lamp bead support arranged on the metal substrate, and the lamp bead support is connected with the metal substrate through a metal strip. The utility model discloses a cutter in the shaping separation punching pin adopts the mode of tearing to directly cut off the metal strip in order to form the soldering tin foot to improved production efficiency, and cut off the in-process and not produce the waste material, reduced manufacturing cost, in addition, cut off the in-process and make soldering tin foot downwarping, the dog-ear processing of the follow-up soldering tin foot of being convenient for.

Description

A punch press for LED lamp support burst processing

Technical Field

The utility model relates to a LED lamp encapsulation technical field, in particular to a punch press that is used for LED lamp support burst to process.

Background

In the manufacturing process of the LED lamp beads, in order to realize mass production, a plurality of LED lamp supports are generally formed by injection molding on a metal substrate, then a plurality of relatively independent LED lamp beads are formed after operations such as die bonding and glue dispensing are carried out on the LED lamp supports, and finally blanking is carried out, so that the LED lamp beads are separated from the metal substrate to form the independent LED lamp beads.

In the small-spacing display screens used in the market at present, the LED lamp supports are mostly arranged in 20 rows by 36 rows, and the external size is 60mm by 144 mm. In the punching and blanking process of the product, the soldering tin feet in the LED lamp support are punched through the punch, namely, the connecting strip between the LED lamp support and the metal substrate is jacked by the two forming sub-knife edges from the lower part, and meanwhile, the forming separation punch punches from top to bottom, so that the tail end of the soldering tin feet of the LED lamp support is separated from the metal substrate, and meanwhile, the separated redundant waste materials drop from the two forming sub-knife edges.

The cross section of above-mentioned shaping separation punching pin is square, make along the direction of working, must keep certain distance between two adjacent LED lamp support, this has just also caused adjacent LED lamp support position on metal substrate and must pull open great distance, make the LED lamp support quantity that can produce simultaneously on a slice of metal substrate reduce, lead to production efficiency low, and the in-process of blanking can produce the waste material, thereby it is more to lead to the final waste material of a slice of metal substrate, the waste of production material is serious, and production cost increases.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a punch press for LED lamp support burst processing changes the cutting mode of soldering tin foot through the structure that changes the shaping separation punching pin in the punch press to improve production efficiency, reduce the waste material and produce reduction in production cost.

A punch press for processing LED lamp brackets in a slicing way comprises an upper die and a lower die, wherein the LED lamp brackets which are not sliced are positioned between the upper die and the lower die,

the lower die comprises a base, a forming separation knife edge and at least one row of prepressing inserts, wherein the forming separation knife edge is arranged on the base and is close to the upper die;

the upper die comprises a fixed seat and a guide seat which are connected, a forming separation punch corresponding to the position of the pre-pressing insert is arranged in the fixed seat, one end of the forming separation punch is connected with a driving assembly, the other end of the forming separation punch is a punch, and two sides of the tail end of the punch respectively penetrate through the guide seat and extend towards the direction of the lower die to form a cutter;

the LED lamp support comprises a metal substrate and a plurality of rows of lamp bead supports arranged on the metal substrate, the lamp bead supports are connected with the metal substrate through metal strips, and when stamping is carried out, the connection positions of the metal strips and the metal substrate are cut off by the cutter, so that the cut-off positions of the metal strips are bent downwards to form the soldering tin feet of the lamp bead supports.

Compared with the prior art, the utility model discloses in, adopt the mode of tearing to directly cut off the metal strip in order to form the soldering tin foot through the cutter in the shaping separation punching pin to improved production efficiency, and cut off the in-process and not produced the waste material, reduced manufacturing cost, in addition, cut off the in-process and make soldering tin foot downwarping, the dog-ear processing of the follow-up soldering tin foot of being convenient for.

Furthermore, the cross section of the tail end of the punch is a U-shaped section, the knife edges of the cutters are inner inclined planes, and the distance between the inner inclined planes on the two sides is gradually increased from the upper die to the lower die.

Furthermore, the bottom of the guide seat protrudes outwards to form a guide boss, and a guide hole penetrating through the guide seat is formed in the guide boss;

the guide hole comprises a guide hole positioned in the guide seat and a protection hole positioned in the guide boss and communicated with the guide hole, the tail end of the cutter penetrates through the protection hole and protrudes out of the end face of the guide boss, and the diameter of the guide hole is gradually increased from the lower die to the upper die;

the end face of the guide boss is provided with a first accommodating groove, and the first accommodating groove is located between the two protection holes.

Furthermore, the top of the forming separation knife edge protrudes outwards to form a knife edge boss corresponding to the guide boss, and a forming separation hole for accommodating the pre-pressing insert to pass through is formed in the knife edge boss.

Furthermore, the top of the pre-pressing mold insert is flush with the top of the knife edge boss, the middle of the top is concave to form a second accommodating groove, two sides of the top form an outer inclined surface, when stamping processing is carried out, the top of the lamp bead support is located in the first accommodating groove, the bottom of the lamp bead support is located in the second accommodating groove, after the cutter cuts off the connection part of the metal strip and the metal substrate, the soldering tin pin of the lamp bead support is located between the inner inclined surface and the outer inclined surface.

Furthermore, the bottom of the prepressing insert penetrates through the base and is sequentially connected with the prepressing ejector pin and the prepressing spring.

Furthermore, the LED lamp support after the separation is provided with (20-40) rows (30-50) of lamp bead supports in an array.

Drawings

Fig. 1 is a schematic structural view of a punch press for slicing and processing an LED lamp bracket according to the present invention;

FIG. 2 is a schematic view of the separation punch of FIG. 1 for cutting off solder fillets;

fig. 3 is a schematic view illustrating a step of bending a solder foot of a single lamp bead support in fig. 1.

Description of the main element symbols:

upper die	10	Fixed seat	101
				Guiding seat	102	Guide boss	103
First holding tank	1031	Guiding hole	104
				Guide hole	1041	Protective hole	1042
Lower die	11	Base seat	111
				Forming separating knife edge	112	Knife edge boss	113
Shaped separation orifice	114	LED lamp support	12
				Metal substrate	121	Lamp bead support	122
Metal strip	123	Solder pin	124
				Pre-broken line	125	Prepressing insert	13
Second holding tank	131	Outer inclined plane	132
				Forming separating punch	14	Punch head	141
Cutting knife	142	Inner inclined plane	143
				Prepressing thimble	15	Prepressing spring	16

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a punching machine for processing LED lamp holder slices according to an embodiment of the present invention includes an upper die 10 and a lower die 11, and an un-sliced LED lamp holder 12 is located between the upper die 10 and the lower die 11, wherein,

the lower die 11 comprises a base 111, a forming separation knife edge 112 arranged on the base 111 and close to the upper die 10, and at least one row of prepressing inserts 13 penetrating through the forming separation knife edge 112 and the base 111;

the upper die 10 comprises a fixed seat 101 and a guide seat 102 which are connected, a forming separation punch 14 corresponding to the position of the pre-pressing insert 13 is arranged in the fixed seat 101, one end of the forming separation punch 14 is connected with a driving assembly, the other end of the forming separation punch is a punch 141, and two sides of the tail end of the punch 141 respectively penetrate through the guide seat 102 and extend towards the lower die 11 to form a cutter 142;

the LED lamp support 12 includes a metal substrate 121, and a plurality of rows of lamp bead supports 122 disposed on the metal substrate 121, where the lamp bead supports 122 are connected to the metal substrate 121 through metal strips 123, and when performing stamping, the cutting knife 142 cuts off the connection between the metal strips 123 and the metal substrate 121, so that the cut-off portions of the metal strips 123 are bent downward to form the solder legs 124 of the lamp bead supports 122.

In this embodiment, two rows of the pre-pressing inserts 13 are disposed in the lower die 11, and two rows of the forming separating punches 14 are correspondingly disposed in the upper die 10, so as to improve the processing efficiency. It is understood that in other embodiments, the number of rows of the pre-pressing inserts 13 and the forming separating punches 14 may be set according to actual processing requirements.

In addition, in this embodiment, two cutting blades 142 are formed on each side of the end of each punch 141, which just corresponds to the number of the solder legs 124 on both sides of each bead support 122, so as to facilitate the cutting process. It is understood that in other embodiments, the number of the cutting blades 142 may be correspondingly set according to the number of the solder tails 124.

Referring to fig. 2, the end of the punch 141 has a U-shaped cross-section to enhance the coupling strength between the cutter 142 and the punch 141.

In a preferred embodiment of the present invention, the edge of the cutting knife 142 is an inner inclined surface 143, and the distance between the inner inclined surfaces 143 on both sides is gradually increased from the upper die 10 to the lower die 11, so as to ensure that the cutting knife 142 has sufficient sharpness, and facilitate the cutting processing of the solder fillet 124.

Referring to fig. 2, the bottom of the guide seat 102 protrudes outward to form a guide boss 103, and a guide hole 104 penetrating through the guide seat 102 is formed in the guide boss 103.

Specifically, the pilot hole 104 includes a pilot hole 1041 located in the pilot seat 102, and a guard hole 1042 located in the pilot boss 103 and communicated with the pilot hole 1041, where the guard hole 1042 has a function of preventing the cutter 142 from deforming after being subjected to resistance in a cutting process of the solder foot 124, and a tail end of the cutter 142 passes through the guard hole 1042 and protrudes out of an end face of the pilot boss 103, so that the solder foot 124 is bent downward primarily when performing cutting and processing, and a diameter of the pilot hole 1041 is gradually increased from the lower die 11 to the upper die 10, so as to facilitate positioning and enable the cutter 142 and the punch 141 to smoothly enter the pilot hole 1041.

Further, the end surface of the guiding boss 103 is provided with a first receiving groove 1031, the first receiving groove 1031 is located between the two protection holes 1042, and the first receiving groove 1031 is used for receiving the top of the lamp bead support 122 to avoid interference in the cutting process. It should be noted that, in the present invention, the first receiving groove 1031 can receive one lamp bead support 122, and it can be understood that, in other embodiments, the width of the first receiving groove 1031 can be increased to receive two or more lamp bead supports 122, and the specific width can be set according to the actual process.

In a preferred embodiment of the present invention, the top of the forming separation blade 112 protrudes outward to form a blade boss 113 corresponding to the position of the guide boss 103, and the blade boss 113 is provided with a forming separation hole 114 for accommodating the pre-pressing mold insert 13. The knife edge boss 113 is used for supporting a non-processing part in the cutting process, so that the cutting processing is convenient.

Referring to fig. 2, the top of the pre-pressing insert 13 is flush with the top of the knife-edge boss 113, the middle of the top is recessed to form a second receiving groove 131, two sides of the top form an outer inclined surface 132, when performing stamping, the top of the lamp bead support 122 is located in the first receiving groove 1031, the bottom of the lamp bead support 122 is located in the second receiving groove 131, and after the cutter 142 cuts off the connection between the metal strip 123 and the metal substrate 121, the solder foot of the lamp bead support 122 is located between the inner inclined surface 143 and the outer inclined surface 132.

It should be noted that, in the present invention, the second receiving groove 131 is used for receiving the bottom of the lamp bead support 122, avoiding the interference in the cutting process. The second receiving groove 131 can receive one lamp bead support 122, and it can be understood that in other embodiments, the width of the second receiving groove 131 can be increased to receive two or more lamp bead supports 122, and the specific number can be set according to an actual process.

Further, the outer inclined surface 132 serves to form a receiving space with the mold separation hole 114 to receive the solder leg 124 and the cutting blade 142 bent during the cutting process.

The utility model discloses an in the preferred embodiment, the bottom of pre-compaction mold insert 13 is run through base 111 is connected with pre-compaction thimble 15 and pre-compaction spring 16 in proper order, pre-compaction thimble 15 and pre-compaction spring 16 realize right the support of pre-compaction mold insert 13.

Referring to fig. 1 and fig. 3, a processing method for processing LED lamp bracket slices is implemented by using the above punch press for processing LED lamp bracket slices, and the processing method includes:

step S100, sending the LED lamp supports which are not subjected to the slicing into a punch press, cutting off the connection part of the metal strip 123 of each lamp bead support 122 in the LED lamp supports 12 which are not subjected to the slicing and the metal substrate 121 by a forming separation punch 14 in the punch press, so that the cut-off part of the metal strip 123 is bent downwards to form a soldering tin foot 124 of each lamp bead support 122;

in this step, the metal strip 123 is directly cut off by the cutting knife in the forming separation punch 14 in a tearing mode to form the solder feet 124, so that the production efficiency is improved, no waste is generated in the cutting process, the production cost is reduced, and in addition, the solder feet 124 are bent downwards in the cutting process, so that the subsequent corner folding processing of the solder feet 124 is facilitated.

Step S200, a pre-folding line 125 is formed on the lower surface of the soldering tin foot 124 of each lamp bead support 122 by a folding line punch in the punch press;

in this step, the pre-folding line 125 is used to prevent the solder leg 124 from breaking during the subsequent corner folding process of the solder leg 124.

Step S300, bending the soldering tin foot 124 bent downwards of each lamp bead bracket 122 gradually downwards from the position of the pre-folding line 125 by a punch press, so that the bending section of the soldering tin foot 124 from the position of the pre-folding line 125 to the tail end is perpendicular to the metal substrate 121;

specifically, in this step, when the solder tail 124 is bent downward from the pre-bending line 125, the solder tail 124 is bent to 45 ° and then to 90 °, so as to avoid the solder tail 124 from breaking during the subsequent corner-folding process of the solder tail 124.

Step S400, the punch press bends the soldering tin foot 124 of each lamp bead support 122 downwards gradually from the connecting part of the soldering tin foot 124 and the lamp bead support 122, so that the bending section of the soldering tin foot 124 from the position of the pre-bending line 125 to the tail end is parallel to the metal substrate 121;

specifically, in this step, when the solder foot 124 is bent gradually downward from the joint between the solder foot 124 and the bead support 122, the solder foot 124 is bent to 30 °, then bent to 55 °, and then bent to 90 °, so as to avoid the solder foot 124 from breaking during subsequent corner folding processing of the solder foot 124.

Step S500, correcting the soldering tin foot 124 of each lamp bead support 122 by a punch press so that the inner side surface of the soldering tin foot 124 from the joint of the soldering tin foot 124 and the lamp bead support 122 to the pre-folding line 125 is attached to the side surface of the lamp bead support 122, and the inner side surface of the soldering tin foot 124 from the pre-folding line 125 to the tail end is attached to the bottom of the lamp bead support 122;

it should be noted that the step of correcting the solder foot 124 of each bead support 122 by the punch press specifically includes:

step S5001, correcting a bending section from a connecting part of the soldering tin foot 124 and the lamp bead support 122 to a pre-bending line 125 through a punch;

step S5002, correcting a bending section from the position of the pre-bending line 125 to the tail end through a punch;

step S5003, correcting the arc shape of the solder foot 124 in the width direction by a punch;

step S5004, the arc shape of the solder tail 124 in the length direction is corrected by the punch.

It should be noted that, the correction steps need to be performed in sequence, so as to avoid a gap between the solder foot 124 and the bottom of the lamp bead support 122, or a position of the solder foot 124 is shifted, so that the electrical connection of the solder foot 124 is in poor contact, which may cause a dead lamp or a circuit connected through the patterned screen after the rear end is pasted with the screen.

Step S600, when the LED lamp support 122 which is not subjected to the slicing reaches a preset length after being cut and subjected to the corner folding processing, the punch cuts at each preset length to form the sliced LED lamp support 122.

It is further clear and definite that, the utility model discloses in, carry out burst processing back through the punch press, the array is equipped with (20 ~ 40) row in the LED lamp support 122 after the burst (30 ~ 50) lamp pearl support. Specifically, the number of rows may be 28 (30 to 40 columns) or 32 (40 to 50 columns).

In this embodiment, the number of rows may be 28 × 32, 28 × 34, 28 × 36, 28 × 38, or 32 × 50, 32 × 48, 32 × 46, 32 × 44. Through calculating statistics, through the utility model discloses the LED lamp support of making can practice thrift copper product quantity 30% ~ 40%, and lifting efficiency promotes 200% ~ 250%.

To sum up, the utility model discloses a cutter 142 in shaping separation punching pin 14 adopts the tearing mode directly to cut off metal strip 123 in order to form soldering tin foot 124 to improved production efficiency, and did not produce the waste material in the cutting process, reduced manufacturing cost, in addition, made soldering tin foot 124 downwarping in the cutting process, the dog-ear processing of the follow-up soldering tin foot 124 of being convenient for.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a punch press for LED lamp support burst processing which characterized in that: comprises an upper die and a lower die, wherein the LED lamp bracket which is not sliced is positioned between the upper die and the lower die,

2. The punching machine for slicing the LED lamp holder according to claim 1, wherein a cross section of a distal end of the punch is a U-shaped section, a blade of the cutter is an inner inclined surface, and a distance between the inner inclined surfaces at both sides gradually increases from the upper die to the lower die.

3. The punch press for slicing the LED lamp bracket according to claim 2, wherein the bottom of the guide seat protrudes outwards to form a guide boss, and a guide hole penetrating through the guide seat is formed in the guide boss;

4. The punch press for slicing the LED lamp holder according to claim 3, wherein the top of the forming and separating knife edge protrudes outward to form a knife edge boss corresponding to the guide boss, and a forming and separating hole for allowing the pre-pressing insert to pass through is formed in the knife edge boss.

5. The punch press for slicing the LED lamp holder according to claim 4, wherein the top of the pre-pressing insert is flush with the top of the knife-edge boss, the middle of the top is concave to form a second receiving groove, two sides of the top form an outer inclined surface, when the punch press is performed, the top of the lamp bead holder is located in the first receiving groove, the bottom of the lamp bead holder is located in the second receiving groove, and after the cutter cuts off the joint between the metal strip and the metal substrate, the soldering tin foot of the lamp bead holder is located between the inner inclined surface and the outer inclined surface.

6. The punch press for slicing the LED lamp holder according to claim 1, wherein the bottom of the pre-pressing insert penetrates through the base to be sequentially connected to the pre-pressing ejector pin and the pre-pressing spring.

7. The punching machine for LED lamp support slicing processing according to claim 1, wherein the LED lamp supports after slicing are provided with (20-40) rows (30-50) of lamp bead supports in an array.