CN113275458A

CN113275458A - Continuous strip forming manufacturing process for forming motor iron core

Info

Publication number: CN113275458A
Application number: CN202110828645.4A
Authority: CN
Inventors: 蒋震林; 余文勇; 蒋海斌; 周红香; 邬恒飞; 许林根
Original assignee: Ningbo Zhenyu Technology Co Ltd
Current assignee: Ningbo Zhenyu Technology Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-08-20
Anticipated expiration: 2041-07-22
Also published as: CN113275458B

Abstract

The invention discloses a strip material continuous forming manufacturing process for forming a motor iron core, which is characterized in that a strip material is conveyed between an upper die and a lower die of a strip material blanking continuous die and is conveyed towards the strip material separating direction in a continuous stepping mode; the strip material punching and separating device comprises a first forming area, a blanking and separating device and a blanking and separating device, wherein the first forming area of a strip material is blanked to form a plurality of first groove types and a plurality of second groove types, the second forming area of the strip material is blanked to form a plurality of third groove types, a plurality of fourth groove types and separating holes, the blanking and separating device performs separating blanking action to realize positive and negative blanking, a continuous blanking process is utilized to blank a strip material to form four motor iron core strips which are mutually penetrated and connected in a pairwise mode, then the strip material is blanked through the mutual matching of an upper blanking structure and a lower blanking structure, the first male die is matched with a second blanking cavity, and the second male die is matched with the first blanking cavity to realize positive and negative simultaneous blanking, so that the four motor iron core strip material connecting parts are blanked and effectively separated, the material utilization rate is further improved, the production efficiency is improved, the manufacturing cost is reduced, and the market competitiveness of products is improved.

Description

Continuous strip forming manufacturing process for forming motor iron core

Technical Field

The invention relates to the technical field of continuous blanking of a belt material for forming a motor iron core, in particular to a continuous forming manufacturing process of the belt material for forming the motor iron core.

Background

At present, a strip material of a continuous blanking die is used for blanking so as to blank two strip materials 100 for motor cores from a strip material 200 and relatively form the strip materials on the strip materials 100, and based on the influence of a blanking process, other steel sheets except products in continuous blanking become waste materials, so that the material utilization rate is low, and only two strip materials (as shown in fig. 1) can be formed by one-time blanking, so that the production efficiency is low; if more product bars 200 need to be produced simultaneously, the number of continuous blanking devices must be doubled at least, and the requirement on the number of punching machines is increased, so that the production mode seriously wastes resources, increases the production cost, and causes low product market competitiveness.

Disclosure of Invention

The invention aims to provide a belt material continuous forming manufacturing process for forming a motor iron core, which is designed for solving the defects of the prior art and can improve the material utilization rate and the production efficiency.

The technical scheme of the invention is as follows: the continuous strip material forming process for forming motor iron core includes the following steps:

step a, feeding, namely conveying a strip material between an upper die and a lower die of a strip material blanking continuous die, and continuously conveying the strip material in a stepping mode in a strip material separation direction;

b, in the continuous stepping conveying process, respectively blanking and forming a plurality of first groove types and a plurality of second groove types in a first forming area of the strip, wherein the first groove types and the second groove types are arranged in a staggered mode, a first convex column is formed between every two first groove types in the first groove types, a second convex column is formed between every two second groove types in the second groove types, the first convex columns are inserted and connected into the second groove types, and the second convex columns are inserted and connected into the first groove types; respectively blanking and forming a plurality of third groove types and a plurality of fourth groove types in a second forming area of the strip, wherein the third groove types and the fourth groove types are arranged in a staggered manner, a third convex column is formed between every two third groove types in the plurality of third groove types, a fourth convex column is formed between every two fourth groove types in the plurality of fourth groove types, so that the third convex columns are inserted and connected in the fourth groove types, and the fourth convex columns are inserted and connected in the third groove types; blanking and forming a plurality of separating holes arranged at intervals between a first forming area and a second forming area of the strip, wherein the separating holes are positioned between a second groove type and a fourth groove type;

c, in the continuous stepping conveying process, the blanking and separating device performs separating blanking action, performs forward blanking on the part needing to be separated between the first convex column and the second groove type to separate the part needing to be separated, and performs reverse blanking on the part needing to be separated between the second convex column and the first groove type to separate the part needing to be separated; and punching the part needing to be separated between the third convex column and the fourth groove type in the forward direction to separate the part needing to be separated between the third convex column and the fourth groove type, punching the part needing to be separated between the fourth convex column and the third groove type in the reverse direction to separate the part needing to be separated between the fourth convex column and the third groove type, and punching the cutting parts among the plurality of separating holes to form four strip materials in a separated state on the strip material.

Preferably, in the step b, a first straight-edge hole group, a second straight-edge hole group and a plurality of groups of first groove-shaped hole groups arranged at intervals are formed in the first forming area of the strip, the first groove-shaped hole group is positioned between the first straight-edge hole group and the second straight-edge hole group, the first straight-edge hole group comprises a plurality of first straight-edge holes arranged at intervals, the second straight-edge hole group comprises a plurality of second straight-edge holes arranged at intervals, the first groove-shaped hole group comprises three first groove-shaped holes arranged at intervals, the first straight-edge holes and the second straight-edge holes are arranged in a staggered mode, the upper ends of the three first groove-shaped holes in each first groove-shaped hole group respectively correspond to two ends of one first straight-edge hole and one end of the other first straight-edge hole, the lower ends of the three first groove-shaped holes in each first groove-shaped hole group respectively correspond to one end of one second straight-edge hole and two ends of the other second straight-edge hole, so as to form a first groove type, a second groove type, a first convex column and a second convex column;

forming a third straight edge hole group, a fourth straight edge hole group and a plurality of groups of second groove-shaped hole groups arranged at intervals in a second forming area of the strip, wherein the second groove-shaped hole group is positioned between the third straight edge hole group and the fourth straight edge hole group, the third straight edge hole group comprises a plurality of third straight edge holes arranged at intervals, the fourth straight edge hole group comprises a plurality of fourth straight edge holes arranged at intervals, the second groove-shaped hole group comprises three second groove-shaped holes arranged at intervals, and the third straight edge holes and the fourth straight edge holes are arranged in a staggered manner, so that the lower ends of the three second groove-shaped holes in each second groove-shaped hole group respectively correspond to two ends of one third straight edge hole and one end of the other third straight edge hole, and the upper ends of the three second groove-shaped holes in each second groove-shaped hole group respectively correspond to one end of one fourth straight edge hole and one end of the other fourth straight edge hole, thereby forming a third groove shape and a fourth groove shape, A third convex column and a fourth convex column.

Preferably, the blanking separating device comprises an upper blanking structure and a lower blanking structure, the upper blanking structure comprises an unloading assembly, a first elastic telescopic mechanism, two rows of cutting assemblies and two first female dies, each cutting assembly comprises a first male die, each unloading assembly is mounted on the corresponding first elastic telescopic mechanism, the first male dies and the corresponding first female dies penetrate through the corresponding unloading assemblies, and first blanking cavities are formed in the corresponding first female dies;

the lower punching structure comprises a second elastic telescopic mechanism, a third elastic telescopic mechanism and a second convex die, the second cavity corresponds to the position of a blanking area with two rows of cutting groups, the position of a first female die corresponds to the position of a third cavity, two first female dies are respectively provided with a second male die, the position of the first blanking cavity corresponds to the position of the second male die, the second female die is fixed in the second cavity, the second female die is provided with second blanking cavities corresponding to the positions and the number of the first male dies, material supporting blocks are arranged in the second blanking cavities and are mounted on a second elastic expansion mechanism, a first movable discharging plate is arranged in the third cavity, the third elastic expansion mechanism is connected with the first movable discharging plate, the second male die penetrates through the first movable discharging plate, and a second gap is reserved between the lower side surface of the first movable discharging plate and the lower inner wall of the third cavity;

during separation, the two first male dies and the two first female dies extend out of the discharging assembly, the two first male dies punch the first protruding columns in the second groove type and the third protruding columns in the fourth groove type respectively to enable the protruding columns and the groove types to be separated from each other, the first protruding columns and the third protruding columns enter two second punching cavities respectively, the two material supporting blocks support the first protruding columns and the third protruding columns respectively, meanwhile, the two first female dies respectively push and press the two first movable discharging plates to enable the two second male dies to extend out of the first movable discharging plates respectively, and punch the second protruding columns in the first groove type and the fourth protruding columns in the third groove type respectively to enable the protruding columns and the groove types to be separated from each other.

Preferably, the specific molding step of the groove shape is as follows:

b1, blanking a first straight edge hole group in the first forming area of the bar stock and blanking a third straight edge hole group in the second forming area of the bar stock in the continuous stepping conveying process, wherein the third straight edge hole position of the third straight edge hole group corresponds to the first straight edge hole position of the first straight edge hole group;

b2, blanking a second straight edge hole group in the first forming area of the strip material and blanking a fourth straight edge hole group in the second forming area of the strip material based on the blanking forming in the b1 in the continuous stepping conveying process, wherein the fourth straight edge hole position of the fourth straight edge hole group corresponds to the second straight edge hole position of the second straight edge hole group;

and b3, forming a first groove-shaped hole group, a third groove-shaped hole group and a fourth groove-shaped hole group between the first straight edge hole group and the second straight edge hole group on the strip material based on the blanking forming in the step b2 in the continuous stepping conveying process.

Preferably, before step b1, prefabricated holes are punched and formed on the upper side, the lower side and the middle part of the strip, groove top holes are correspondingly formed in step b2 according to the three prefabricated holes formed on the strip, and the groove top holes are used as guiding holes for guiding the strip by the guiding pins in the continuous stepping conveying process.

Preferably, in step b1 or step b2 or step b3, a separation hole is formed beside the hole at the middle position of the strip.

Preferably, the upper cutting structure further comprises a separation blanking male die corresponding to the width of the separation hole, the lower cutting structure further comprises a recess corresponding to the position of the separation blanking male die, or the lower cutting structure further comprises a separation blanking male die corresponding to the width of the separation hole, the upper cutting structure further comprises a recess corresponding to the position of the separation blanking male die, and the separation blanking male die acts to blank the connection position of the end part of the separation hole so as to separate the first forming area from the second forming area.

Preferably, the blanking device further comprises a fourth elastic telescopic mechanism, the first female die comprises a guide through hole and a material pushing hole, the guide through hole is located beside the first blanking cavity, a guide pin is arranged in the guide through hole, the fourth elastic telescopic mechanism is connected with the guide pin, and a material pushing rod is arranged in the material pushing hole.

Preferably, the discharging assembly comprises recesses at two corresponding sides of a blanking area with two rows of cutting groups, at least one part of the first female die is sunk into the recesses, a plurality of bulges are arranged on the inner walls of the recesses, a plurality of first blanking cavities are arranged, and the bulges are correspondingly inserted into the first blanking cavities; a row of cutting groups are positioned beside the recess and arranged in parallel; the other row of cutting groups are positioned beside the other recess and arranged in parallel; the position of the bulge and the position of the first male die are arranged in a staggered manner; the second punch is also provided in plurality, and the second blanking cavity is also provided in plurality.

Preferably, the discharging assembly further comprises a discharging plate seat and a second movable discharging plate which are fixed to each other, the discharging plate seat is fixedly connected with the lower end of the first elastic telescopic mechanism, two through holes corresponding to the two first female dies in position are formed in the discharging plate seat respectively, the first female dies penetrate through the through holes, and depressions corresponding to the positions are formed in two corresponding side faces, close to one inner wall of the cutting group, of the two through holes and corresponding to the second movable discharging plate.

The invention designs a continuous forming manufacturing process of a belt material for forming a motor iron core, which utilizes a continuous blanking process to blank a belt material to form four belt materials for the motor iron core, wherein the four belt materials are mutually penetrated and connected in pairs, and then the belt materials are mutually closed through an upper blanking structure and a lower blanking structure, and then the forward and reverse simultaneous blanking is realized through the matching of a first male die and a second blanking cavity and the matching of the second male die and the first blanking cavity, so that the connection parts of the four belt materials for the motor iron core are effectively separated by blanking, the material utilization rate is further improved, the production efficiency is improved, the manufacturing cost is reduced, and the market competitiveness of products is improved.

Drawings

FIG. 1 is a schematic diagram of a prior art structure for blanking two strips;

FIG. 2 is a flow diagram of the blanking process of the present invention;

FIG. 3 is a general structural schematic view (one);

FIG. 4 is a schematic view of an upper blanking structure;

FIG. 5 is a schematic view of a lower sanction structure;

FIG. 6 is a schematic view of the overall structure (two);

FIG. 7 is a schematic view (III) of the overall structure;

FIG. 8 is a schematic view (one) of the first cavity;

FIG. 9 is a schematic view (two) of the first cavity;

fig. 10 is a schematic of the structure for forming four strips.

The first straight edge hole group 300, the second straight edge hole group 400, the first groove-shaped hole group 500, the third straight edge hole group 600, the fourth straight edge hole group 700, the second groove-shaped hole group 800, the upper die 901 and the lower die 902;

a first groove type 101, a second groove type 102, a third groove type 103, a fourth groove type 104, a first convex column 105, a second convex column 106, a third convex column 107, a fourth convex column 108 and a part to be separated 109;

the punching die comprises a first forming area 201, a second forming area 202, a first straight-edge hole 203, a second straight-edge hole 204, a third straight-edge hole 205, a fourth straight-edge hole 206, a first groove-shaped hole 207, a second groove-shaped hole 208, a prefabricated hole 209, a groove top hole 210, a separating punching male die 211, a separating hole 212, a limiting plate 213 and a through hole 214;

a recess 221, a protrusion 222;

an upper die holder 1, a discharging component 2, a first male die 3, a first female die 4, a first blanking cavity 41, a guide through hole 42, a material pushing hole 43, a guide pin 5, a material pushing rod 6, a fourth elastic telescopic mechanism 7, a first through hole 70, a second plugging fixing piece 71, a second spring 72, a lower die holder 8, a lower die plate 81, a lower backing plate 82, a lower die fixing plate 83, a fixing plate 9, a second concave cavity 91 and a third concave cavity 92, the device comprises a first movable stripper plate 10, an upper die plate 11, a counter bore 111, an upper padding plate 12, an upper die fixing plate 13, a first elastic telescopic mechanism 14, a first blocking fixing part 141, a first spring 142, an elastic pressing pin 143, a second blanking cavity 15, a material supporting block 16, a second elastic telescopic mechanism 17, a third elastic telescopic mechanism 18, a second male die 19, a first gap 20, a stripper plate seat 21, a second movable stripper plate 22, a second gap 23, a second female die 24 and a cutting group 30;

a third blocking fixture 161, a third spring 162, a connecting rod 163, a flap-type rod 164;

a second via 811 and a third via 812.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example (b):

as shown in fig. 2, the continuous forming process of the strip for forming the motor core described in this embodiment includes the following specific steps:

step a, feeding, namely conveying the strip material 200 between an upper die 901 and a lower die 902 of a strip blanking continuous die, and continuously conveying the strip material in a stepping mode towards the separation direction of the strip material 100; the blanking method is characterized in that the upper die 901 and the lower die 902 are closed once every step of conveying of the strip material 200 to complete a blanking task, and the blanking speed is determined according to the step conveying speed.

B, in the continuous stepping conveying process, respectively blanking and forming a plurality of first groove types 101 and a plurality of second groove types 102 in a first forming area 201 of the strip 200, wherein the first groove types 101 and the second groove types 102 are arranged in a staggered mode, a first convex column 105 is formed between every two first groove types 101 in the plurality of first groove types 101, a second convex column 106 is formed between every two second groove types 102 in the plurality of second groove types 102, so that the first convex column 105 is inserted and connected into the second groove types 102, and the second convex column 106 is inserted and connected into the first groove types 101; respectively blanking and forming a plurality of third groove types 103 and a plurality of fourth groove types 104 in a second forming area 202 of the strip material 200, wherein the third groove types 103 and the fourth groove types 104 are arranged in a staggered manner, a third convex column 107 is formed between every two third groove types 103 in the plurality of third groove types 103, a fourth convex column 108 is formed between every two fourth groove types 104 in the plurality of fourth groove types 104, so that the third convex columns 107 are inserted and connected in the fourth groove types 104, and the fourth convex columns 108 are inserted and connected in the third groove types 103; a plurality of separating holes 212 are punched and formed between the first forming area 201 and the second forming area 202 of the bar material 200, and the separating holes 212 are located between the second trough type 102 and the fourth trough type 104. Four motor iron core strips 100 which are mutually and alternately connected in a pairwise mode are formed by forming the first groove type 101, the second groove type 102, the third groove type 103 and the fourth groove type 104, and therefore four preformed strips can be formed only by forming the groove types, and forming efficiency is improved.

C, in the continuous stepping conveying process, the blanking and separating device performs a separating and blanking action, performs forward blanking on the part 109 to be separated between the first convex column 105 and the second groove type 102 to separate the two parts, and performs reverse blanking on the part 109 to be separated between the second convex column 106 and the first groove type 101 to separate the two parts; the part 109 to be separated between the third convex column 107 and the fourth groove type 104 is punched in the forward direction to separate the two parts, the part 109 to be separated between the fourth convex column 108 and the third groove type 103 is punched in the reverse direction to separate the two parts, and the cutting parts among the plurality of separation holes 212 are punched to form four strips 100 in a separated state on the strip 200; the belt material 100 for the four motor iron cores which are connected in a pairwise and mutually penetrating manner is made in a positive and negative punching manner, so that the technical problems that the belt material 100 for the four motor iron cores which are connected in a pairwise and mutually penetrating manner is still mutually penetrated after being punched due to equidirectional punching, and the manufacturing cost is caused by adding a manual splitting station for manual splitting after punching forming are solved, therefore, the manufacturing cost is low in the positive and negative punching manner, and the punching and cutting efficiency is high; in addition, the blanking separating device can be integrally arranged at the last blanking station of the strip blanking continuous die, or externally arranged at the last blanking station of the strip blanking continuous die and synchronously acts with the strip blanking continuous die.

In step b, a first straight-edge hole group 300, a second straight-edge hole group 400 and a plurality of groups of first groove-shaped hole groups 500 arranged at intervals are formed in the first forming area 201 of the strip material 200, the first groove-shaped hole group 500 is positioned between the first straight-edge hole group 300 and the second straight-edge hole group 400, the first straight-edge hole group 300 comprises a plurality of first straight-edge holes 203 arranged at intervals, the second straight-edge hole group 400 comprises a plurality of second straight-edge holes 204 arranged at intervals, the first groove-shaped hole group 500 comprises three first groove-shaped holes 207 arranged at intervals, the first straight-edge holes 203 and the second straight-edge holes 204 are arranged in a staggered mode, the upper ends of the three first groove-shaped holes 207 in each first groove-shaped hole group 500 respectively correspond to two ends of one first straight-edge hole 203 and one end of the other first straight-edge hole 203, and the lower ends of the three first groove-shaped holes 207 in each first groove-shaped hole group 500 respectively correspond to one end of one second straight-edge hole 204 and two ends of the other straight-edge holes 204, forming a first groove type 101, a second groove type 102, a first convex column 105 and a second convex column 106; forming a third straight-edge hole group 600, a fourth straight-edge hole group 700 and a plurality of groups of second slotted hole groups 800 arranged at intervals in a second forming area 202 of the strip 200, wherein the second slotted hole group 800 is positioned between the third straight-edge hole group 600 and the fourth straight-edge hole group 700, the third straight-edge hole group 600 comprises a plurality of third straight-edge holes 205 arranged at intervals, the fourth straight-edge hole group 700 comprises a plurality of fourth straight-edge holes 206 arranged at intervals, the second slotted hole group 800 comprises three second slotted holes 208 arranged at intervals, the third straight-edge holes 205 and the fourth straight-edge holes 206 are arranged in a staggered manner, so that the lower ends of the three second slotted holes 208 in each second slotted hole group 800 respectively correspond to both ends of one third straight-edge hole 205 and one end of another third straight-edge hole 205, and the upper ends of the three second slotted holes 208 in each second slotted hole group 800 respectively correspond to one end of one fourth straight-edge hole 206 and one end of another fourth straight-edge hole 206, and a third groove type 103, a fourth groove type 104, a third boss 107 and a fourth boss 108 are formed. The waste material with the corresponding shape is removed by a punching mode according to the shape of the actual groove shape, so that a corresponding groove shape is formed.

Preferably, the specific molding step of the trough shape is performed in the following order:

b1, blanking a first straight-edge hole group 300 in the first forming area 201 of the bar material 200 and blanking a third straight-edge hole group 600 in the second forming area 202 of the bar material 200 in the continuous stepping conveying process, wherein the third straight-edge hole 205 of the third straight-edge hole group 600 corresponds to the first straight-edge hole 203 of the first straight-edge hole group 300 in position;

b2, blanking a second straight-edge hole group 400 in the first forming area 201 of the bar material 200 and blanking a fourth straight-edge hole group 700 in the second forming area 202 of the bar material 200 based on the blanking in the b1 in the continuous stepping conveying process, wherein the position of the fourth straight-edge hole 206 of the fourth straight-edge hole group 700 corresponds to the position of the second straight-edge hole 204 of the second straight-edge hole group 400;

step b3, in the continuous step-by-step conveying process, based on the blanking forming in step b2, forming a first groove-shaped hole group 500, a third groove-shaped hole group 600 and a fourth groove-shaped hole group 700 between the first straight-edge hole group 300 and the second straight-edge hole group 400 on the bar 200.

The groove-shaped specific forming step ensures that the groove-shaped forming is reliable, so as to solve the technical problem that the product is scrapped because the strip material 200 is easy to deform in one-step forming.

As shown in fig. 3-10, in the present embodiment, it is preferable to integrate a blanking and separating device at the final blanking station of the strip blanking continuous die, where the blanking and separating device includes an upper blanking structure and a lower blanking structure, the upper blanking structure includes a discharging assembly 2, a first elastic telescopic mechanism 14, two rows of cutting sets 30 and two first female dies 4, the cutting sets 30 include a first male die 3, the discharging assembly 2 is mounted on the first elastic telescopic mechanism 14, the first male die 3 and the first female dies 4 penetrate through the discharging assembly 2, and a first blanking cavity 41 is disposed on the first female dies 4; the lower punching structure comprises a second elastic telescoping mechanism 17, a third elastic telescoping mechanism 18, a second male die 19, a second cavity 91 and a third cavity 92 positioned at two corresponding sides of the second cavity 91, the second cavity 91 corresponds to the punching region with two rows of cutting groups 30, the position of a first female die 4 corresponds to the position of the third cavity 92, the two first female dies are respectively provided with the second male die, the position of a first punching cavity 41 corresponds to the position of the second male die 19, a second female die 24 is fixed in the second cavity 91, the second female die 24 is provided with second punching cavities 15 corresponding to the positions and the number of the first male dies 3, a material supporting block 16 is arranged in the second punching cavities 15, the material supporting block 16 is arranged on the second elastic telescoping mechanism 17, a first movable discharging plate 10 is arranged in the third cavity 92, the third elastic telescoping mechanism 18 is connected with a first movable discharging plate 10, the second male die 19 penetrates through the first movable discharging plate 10, a second gap 23 exists between the lower side surface of the first movable stripper plate 10 and the lower inner wall of the third cavity 92; wherein, the first punch 3, the second punch 19, the first blanking cavity 41, the second blanking cavity 15 and the protrusion 222 in the recess 221 are respectively provided with four or more than four.

When the structure is adopted to separate four strip materials 100 which are mutually inserted and connected in pairs, an upper die 901 and a lower die 902 of the strip material blanking continuous die are closed, two first male dies 3 and two first female dies 4 extend out of the unloading assembly 2, the two first male dies 3 respectively blank a first convex column 105 in a second groove type 102 and a third convex column 107 in a fourth groove type 104, so that the convex columns and the groove types are mutually separated, the first convex column 105 and the third convex column 107 respectively enter two second blanking cavities 15, and two material supporting blocks 16 respectively support the first convex column 105 and the third convex column 107, so that the strip materials 200 are prevented from being deformed; meanwhile, the two first female dies 4 respectively press the two first movable discharging plates 10, so that the two second male dies 19 respectively extend out of the first movable discharging plates 10, and punch the second convex cylinder 106 in the first groove type 101 and the fourth convex cylinder 108 in the third groove type 103 respectively, so that the convex cylinders and the groove types are separated from each other to form reverse cutting punching, and the first movable discharging plates 10 have the function of preventing the reverse strips 200 from deforming. After the forward and reverse blanking is finished, the upper die is lifted and retreated, and all parts return to the original positions. The strip material 200 returns the strip material 200 to the original position through the reset function of the first movable discharging plate 10, the second movable discharging plate 22 and the material supporting block 16, and the strip material 200 is guaranteed to be normally fed forwards. In this process, the strip 200 is simultaneously blanked in forward and reverse directions to form the separate strips 100, thereby completing the blanking process of the strip 200.

Based on the above, the upper die 901 of the strip blanking progressive die comprises an upper die base 1, a first elastic telescopic mechanism 14 is installed in the upper die base 1, a first gap 20 is reserved between the lower side surface of the upper die base 1 and the upper side surface of the discharging assembly 2, the discharging assembly 2 is installed on the upper die base 1 through the first elastic telescopic mechanism 14, and a first female die 4 and a first male die 3 are fixed at the lower part of the upper die base 1. Lower mould 902 of belting blanking progressive die includes die holder 8 and fixed plate 9, fixed plate 9 is fixed in the upper portion of die holder 8, set up second cavity 91 on the fixed plate 9 and with the third cavity 92 that first die 4 position corresponds, second elastic expansion mechanism 17 and third elastic expansion mechanism 18 are installed on die holder 8, upper portion on the die holder 8 is fixed with the second terrace die 19 that corresponds with first blanking chamber 41 position, there is second clearance 23 between the downside of first activity stripper 10 and the lower inner wall of third cavity 92. The blanking that its structure set up is more synchronous with the continuous blanking of belting 100 during the separation to make product shaping and separation efficiency higher, promote performance.

The upper die holder 1 sequentially comprises an upper die plate 11, an upper backing plate 12 and an upper die fixing plate 13 from top to bottom, the upper die plate 11, the upper backing plate 12 and the upper die fixing plate 13 are fixedly connected with one another through bolts, and the first male die 3 and the first female die 4 are fixed on the upper die fixing plate 13 through bolts; the discharging assembly 2 is positioned below the upper die fixing plate 13, and a first gap 20 exists between the discharging assembly and the upper die fixing plate; first elastic telescoping mechanism 14 is installed in cope match-plate pattern 11, the subassembly 2 of unloading includes the unloading board seat 21 and the second activity stripper 22 of reciprocal anchorage, unloading board seat 21 is fixed continuous with the lower extreme of first elastic telescoping mechanism 14, be provided with two perforation 214 that correspond with two first die 4 positions respectively on the unloading board seat 21, first die 4 runs through perforation 214, two corresponding both sides face that are close to an inner wall of second activity stripper 22 avris and second activity stripper 22 on perforating 214 all are provided with sunken 221, and the sunken 221 position of two places corresponds. The reasonable strip material 100 that makes each four motor core separate reliably with its structural design, promotes performance.

The first elastic telescopic mechanism 14 comprises a first spring 142, a first blocking fixing part 141 and a spring pin 143, the upper template 11 is provided with a counter bore 111, and the first blocking fixing part 141 is fixed at a port of an upper hole part of the counter bore 111; the elastic pressing pin 143 penetrates through the lower hole part of the counter bore 111 and then is fixedly connected with the limiting plate 213 on the discharging plate seat 21, and the step at the upper end of the elastic pressing pin 143 is in contact with the step in the counter bore 111 for limiting; the first spring 142 is arranged in the upper hole part of the counter bore 111, and two ends of the first spring 142 respectively abut against the upper end surface of the elastic pressing pin 143 and the first blocking fixing piece 141, so that the structure of the discharging plate seat 21 is compressed and then provides an automatic resetting function through the first spring 142, and the using performance is improved; meanwhile, the elastic pressing pin 143 and the spring are fixed in the upper die plate 11, and the height of the discharging plate seat 21 and the discharging plate is adjusted to a proper height through the height adjustment of the limiting plate 213, so that the effects of protecting the male die and pressing the strip material 200 are achieved.

The lower die base 8 comprises a lower die plate 81, a lower backing plate 82 fixed on the lower die plate 81 and a lower die fixing plate 83, and the fixing plate 9 is stacked on the upper side surface of the lower die fixing plate 83 and fixedly connected with the lower die plate 81; a second through hole 811 and a third through hole 812 are arranged on the lower template 81, a second elastic telescopic mechanism 17 is arranged in the second through hole 811, a third elastic telescopic mechanism 18 is arranged in the third through hole 812, the second elastic telescopic mechanism 17 and the third elastic telescopic mechanism 18 both comprise a third spring 162, a third blocking fixing member 161 and a connecting rod 163, the second through hole 811 and the third through hole 812 are both provided with the third spring 162, the third blocking fixing member 161 and the connecting rod 163, the third blocking fixing member 161 in the second through hole 811 and the third through hole 812 blocks the lower ports of the second through hole 811 and the third through hole 161, the threaded third blocking fixing member 161 is fixed by adopting threaded connection, and two ends of the third spring 162 are respectively connected with the third blocking fixing member 161 and the connecting rod 163; the material supporting block 16 penetrates through the lower backing plate 82, the lower die fixing plate 83 and the fixing plate 9 and then abuts against the connecting rod 163 of the second elastic telescopic mechanism 17, and the step of the material supporting block 16 is in contact with the lower side surface of the fixing plate 9 for limiting; a notch-shaped rod 164 is arranged on a connecting rod 163 of the third elastic telescopic mechanism 18, the longitudinal part of the notch-shaped rod 164 penetrates through the lower backing plate 82, the lower die fixing plate 83 and the fixing plate 9 and then is fixedly connected with the first movable discharging plate 10, and the transverse part of the notch-shaped rod 164 is limited on the lower side surface of the lower backing plate 82. The structure is reasonably arranged, and a reliable floating effect of the material supporting block 16 and the first movable stripper plate 10 is provided, so that each motor iron core can be conveniently blanked and separated by the belt material 100.

In this embodiment, before step b1, prefabricated holes 209 are punched on the upper side, the lower side and the middle of the strip 200, three prefabricated holes 209 formed on the strip 200 are correspondingly formed into a slot top hole 210 in step b2, and the slot top hole 210 is used as a pilot hole for pilot pin to pilot the strip 200 in the continuous stepwise conveying process. Based on the fact that displacement feeding is needed after blanking of the strip material 200, after feeding, a guide pin on the strip material blanking continuous die is inserted into a guide hole to guide the position of the strip material 200 before blanking, and the situation of staggered blanking is prevented.

In the present embodiment, the separation hole 212 is formed beside the hole at the central position of the bar 200 in step b1 or step b2 or step b 3. The blanking arrangement of the separator holes 212 facilitates the final effective separation of the four strips 100 at the separation station.

In this embodiment, the upper cutting structure further includes a separate blanking punch 211 corresponding to the width of the separation hole 212, the lower cutting structure further includes a recess corresponding to the position of the separate blanking punch 211, or the lower cutting structure further includes a separate blanking punch 211 corresponding to the width of the separation hole 212, the upper cutting structure further includes a recess corresponding to the position of the separate blanking punch 211, and the separate blanking punch 211 acts to blank the connection of the end of the separation hole 212 to separate the first molding zone 201 from the second molding zone 202. The structure setting only needs to carry out blanking on the connecting part of the end part of the pre-blanked forming separation hole 212, so that the blanking separation effect is better, and the efficiency is high.

In this embodiment, the upper die plate 11 is provided with a fourth elastic telescopic mechanism 7, the first female die 4 includes a pilot through hole 42 and a material pushing hole 43 located beside the first blanking cavity 41, a pilot pin 5 is arranged in the pilot through hole 42, the fourth elastic telescopic mechanism 7 is connected with the pilot pin, and a material pushing rod 6 is arranged in the material pushing hole 43. After the strip material 200 is sent to the designated position, the upper die is driven by the punch to move downwards, the guide pin 5 nail firstly enters the guide hole of the strip material 200, and the strip material 200 is accurately fixed in place.

Preferably, the fourth elastic telescopic mechanism 7 comprises a second spring 72 and a second blocking fixing piece 71, the upper template 11 is provided with a first through hole 70, and the second blocking fixing piece 71 is fixed at the upper port of the first through hole 70; the second spring 72 is arranged in the first through hole 70, and two ends of the second spring respectively abut against the upper backing plate 12 and the second plugging fixing piece 71; and the upper end of the guide pin 5 penetrates through the upper backing plate 12 and is fixedly connected with the lower end of the second spring 72, so that the telescopic performance of the guide pin 5 is realized, and after the upper blanking structure and the lower blanking structure are closed, the guide pin 5 can retract, but still is inserted into the guide hole of the strip material 200, and the accurate blanking position of the strip material 200 is ensured.

In this embodiment, the discharging assembly 2 includes a recess 221 located at two corresponding sides of the blanking region having two rows of cutting sets 30, and at least a portion of the first female die 4 is sunk into the recess 221, a plurality of protrusions 222 are disposed on an inner wall of the recess 221, a plurality of first blanking cavities 41 are disposed, and the protrusions 222 are correspondingly inserted into the first blanking cavities 41; a row of cutting groups 30 are located beside a recess 221 and arranged in parallel with each other; the other row of cutting groups 30 are positioned beside the other recess 221 and arranged in parallel with each other; the position of the bulge 222 and the position of the first male die 3 are arranged in a staggered manner; the second punch 19 is also provided in plurality, and the second blanking chamber 15 is also provided in plurality. The structure is arranged according to the corresponding arrangement of the interpenetration positions of the four motor iron cores which are mutually and interpenetrated and connected by the belt material 100, so that the blanking and the separation are reliable. Wherein, the first punch 3, the second punch 19, the first blanking cavity 41, the second blanking cavity 15 and the protrusion 222 in the recess 221 are respectively provided with four or more than four.

Preferably, the discharging assembly 2 further includes a discharging plate seat 21 and a second movable discharging plate 22 fixed to each other, the discharging plate seat 21 is fixedly connected to the lower end of the first elastic expansion mechanism 14, two through holes 214 corresponding to the positions of the two first female dies 4 are formed in the discharging plate seat 21, the first female dies 4 penetrate through the through holes 214, and recesses 221 corresponding to each other in position are formed in two corresponding side faces of the second movable discharging plate 22 and an inner wall of the two through holes 214 close to the cutting group 30. The upper die continues downwards, the second movable discharging plate 22 compresses the material belt, and the strip material 200 is prevented from moving up and down, so that the separation blanking is stable and reliable, and the use performance is improved.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims

1. The continuous belt material forming and manufacturing process for forming the motor iron core is characterized by comprising the following specific steps of:

step a, feeding, namely conveying a strip material (200) between an upper die (901) and a lower die (902) of a strip blanking continuous die, and continuously conveying the strip material (100) in a stepping mode in the separating direction;

b, in the continuous stepping conveying process, respectively blanking and forming a plurality of first groove types (101) and a plurality of second groove types (102) in a first forming area (201) of the strip material (200), wherein the first groove types (101) and the second groove types (102) are arranged in a staggered mode, a first convex column (105) is formed between every two first groove types (101) in the first groove types (101), a second convex column (106) is formed between every two second groove types (102) in the second groove types (102), the first convex columns (105) are inserted and connected into the second groove types (102), and the second convex columns (106) are inserted and connected into the first groove types (101); respectively blanking and forming a plurality of third groove types (103) and a plurality of fourth groove types (104) in a second forming area (202) of the strip material (200), wherein the third groove types (103) and the fourth groove types (104) are arranged in a staggered manner, a third convex column (107) is formed between every two third groove types (103) in the plurality of third groove types (103), a fourth convex column (108) is formed between every two fourth groove types (104) in the plurality of fourth groove types (104), so that the third convex columns (107) are inserted and connected in the fourth groove types (104), and the fourth convex columns (108) are inserted and connected in the third groove types (103); blanking and forming a plurality of separating holes (212) arranged at intervals between a first forming area (201) and a second forming area (202) of the strip material (200), wherein the separating holes (212) are positioned between a second groove type (102) and a fourth groove type (104);

c, in the continuous stepping conveying process, the blanking and separating device performs separating blanking action, performs forward blanking on a part (109) to be separated between the first convex column (105) and the second groove type (102) to separate the two parts, and performs reverse blanking on the part (109) to be separated between the second convex column (106) and the first groove type (101) to separate the two parts; the part (109) to be separated between the third convex column (107) and the fourth groove type (104) is punched in the forward direction to separate the part and the part, to be separated, between the fourth convex column (108) and the third groove type (103) is punched in the reverse direction to separate the part and the part, to be separated, between the plurality of separation holes (212) is punched, and therefore four strips (100) in a separated state are formed on the strip material (200).

2. The continuous forming process of the strip for forming the motor iron core according to claim 1, wherein in step b, a first straight hole group (300), a second straight hole group (400) and a plurality of first slotted hole groups (500) spaced apart from each other are formed in the first forming region (201) of the strip (200), the first slotted hole group (500) is located between the first straight hole group (300) and the second straight hole group (400), the first straight hole group (300) comprises a plurality of first straight holes (203) spaced apart from each other, the second straight hole group (400) comprises a plurality of second straight holes (204) spaced apart from each other, the first slotted hole group (500) comprises three first slotted holes (207) spaced apart from each other, and the first straight holes (203) and the second straight holes (204) are offset from each other, such that the upper ends of the three first slotted holes (207) in each first slotted group (500) are respectively offset from the two ends of the first straight holes (203) and the other straight holes (204) One end of each side hole (203) corresponds to one end of each first groove-shaped hole group (500), and the lower ends of three first groove-shaped holes (207) in each first groove-shaped hole group correspond to one end of one second straight-side hole (204) and two ends of the other second straight-side hole (204) respectively to form a first groove shape (101), a second groove shape (102), a first convex column (105) and a second convex column (106);

forming a third straight edge hole group (600), a fourth straight edge hole group (700) and a plurality of groups of second groove-shaped hole groups (800) which are arranged at intervals in a second forming area (202) of the strip material (200), wherein the second groove-shaped hole group (800) is positioned between the third straight edge hole group (600) and the fourth straight edge hole group (700), the third straight edge hole group (600) comprises a plurality of third straight edge holes (205) which are arranged at intervals, the fourth straight edge hole group (700) comprises a plurality of fourth straight edge holes (206) which are arranged at intervals, the second groove-shaped hole group (800) comprises three second groove-shaped holes (208) which are arranged at intervals, the third straight edge holes (205) and the fourth straight edge holes (206) are arranged in a staggered mode, and the lower ends of the three second groove-shaped holes (208) in each second groove-shaped hole group (800) respectively correspond to the two ends of one third straight edge hole (205) and one end of the other third straight edge hole (205), and the upper ends of three second groove-shaped holes (208) in each second groove-shaped hole group (800) respectively correspond to one end of a fourth straight-edge hole (206) and one end of another fourth straight-edge hole (206) to form a third groove shape (103), a fourth groove shape (104), a third convex column (107) and a fourth convex column (108).

3. The strip continuous forming manufacturing process for forming the motor iron core is characterized in that the blanking and separating device comprises an upper blanking structure and a lower blanking structure, the upper blanking structure comprises a discharging assembly (2), a first elastic telescopic mechanism (14), two rows of cutting groups (30) and two first female dies (4), each cutting group (30) comprises a first male die (3), the discharging assembly (2) is installed on the first elastic telescopic mechanism (14), the first male die (3) and the first female die (4) penetrate through the discharging assembly (2), and a first blanking cavity (41) is formed in each first female die (4);

the lower punching structure comprises a second elastic telescopic mechanism (17), a third elastic telescopic mechanism (18), a second convex die (19), a second concave cavity (91) and third concave cavities (92) positioned at two corresponding sides of the second concave cavity (91), the second concave cavity (91) corresponds to the punching region with two rows of cutting groups (30), the position of a first concave die (4) corresponds to the position of the third concave cavity (92), the two first concave dies (4) are respectively provided with the second convex die (19), the position of a first punching cavity (41) corresponds to the position of the second convex die (19), the second concave cavity (91) is internally fixed with a second concave die (24), the second concave die (24) is provided with second punching cavities (15) corresponding to the positions and the number of the first convex dies (3), a material supporting block (16) is arranged in the second punching cavity (15), and the material supporting block (16) is arranged on the second elastic telescopic mechanism (17), a first movable discharging plate (10) is arranged in the third cavity (92), a third elastic telescopic mechanism (18) is connected with the first movable discharging plate (10), a second male die (19) penetrates through the first movable discharging plate (10), and a second gap (23) is reserved between the lower side surface of the first movable discharging plate (10) and the lower inner wall of the third cavity (92);

when in separation, the two first male dies (3) and the two first female dies (4) extend out of the discharging assembly (2), the two first male dies (3) punch a first convex column (105) in the second groove type (102) and a third convex column (107) in the fourth groove type (104) respectively to separate the convex columns from the groove types, the first convex column (105) and the third convex column (107) enter two second punching cavities (15) respectively, the two material supporting blocks (16) support the first convex column (105) and the third convex column (107) respectively, meanwhile, the two first female dies (4) respectively press the two first movable stripper plates (10), so that the two second male dies (19) respectively extend out of the first movable stripper plate (10), and respectively punching a second convex column (106) in the first groove type (101) and a fourth convex column (108) in the third groove type (103) to separate the convex columns and the groove types from each other.

4. The continuous molding manufacturing process of the belt material for molding the motor iron core as claimed in claim 2, wherein the specific molding step of the groove shape is as follows:

b1, blanking a first straight edge hole group (300) in a first forming area (201) of the bar stock (200) and blanking a third straight edge hole group (600) in a second forming area (202) of the bar stock (200) in the continuous stepping conveying process, wherein the position of a third straight edge hole (205) of the third straight edge hole group (600) corresponds to the position of a first straight edge hole (203) of the first straight edge hole group (300);

b2, in the continuous stepping conveying process, based on the blanking forming of the b1, blanking and forming a second straight edge hole group (400) in the first forming area (201) of the bar stock (200), blanking and forming a fourth straight edge hole group (700) in the second forming area (202) of the bar stock (200), wherein the position of a fourth straight edge hole (206) of the fourth straight edge hole group (700) corresponds to the position of a second straight edge hole (204) of the second straight edge hole group (400);

and b3, forming a first groove-shaped hole group (500), a third groove-shaped hole group (600) and a fourth groove-shaped hole group (800) between the first straight edge hole group (300) and the second straight edge hole group (400) on the strip (200) based on the blanking forming in the b2 in the continuous stepping conveying process.

5. The continuous forming process of the belt material for forming the motor core according to claim 4, wherein before the step b1, the preformed holes (209) are punched at the upper side, the lower side and the middle of the bar material (200), the three preformed holes (209) formed on the bar material (200) are correspondingly formed into the slot top holes (210) in the step b2, and the slot top holes (210) are used as guiding holes for guiding the bar material (200) by the guiding pins in the continuous stepping conveying process.

6. The continuous molding process of a motor core molding strip according to claim 5, wherein in step b1 or step b2 or step b3, a separation hole (212) is formed beside the hole at the central position of the bar (200).

7. The strip continuous forming manufacturing process for forming the motor iron core is characterized in that the upper cutting structure further comprises a separated blanking male die (211) corresponding to the width of the separation hole (212), the lower cutting structure further comprises a recess corresponding to the position of the separated blanking male die (211), or the lower cutting structure further comprises a separated blanking male die (211) corresponding to the width of the separation hole (212), the upper cutting structure further comprises a recess corresponding to the position of the separated blanking male die (211), and the separated blanking male die (211) acts to blank the joint of the end part of the separation hole (212) so as to separate the first forming area (201) from the second forming area (202).

8. The continuous forming and manufacturing process of the belt material for forming the motor iron core according to claim 3, characterized by further comprising a fourth elastic telescoping mechanism (7), wherein the first female die (4) comprises a guide through hole (42) and a material pushing hole (43) which are located beside the first blanking cavity (41), a guide pin (5) is arranged in the guide through hole (42), the fourth elastic telescoping mechanism (7) is connected with the guide pin (5), and a material pushing rod (6) is arranged in the material pushing hole (43).

9. The continuous molding manufacturing process of the belt material for forming the motor iron core according to the claim 3, characterized in that the unloading assembly (2) comprises a recess (221) at two corresponding sides of the blanking area with two rows of cutting groups (30), and at least a part of the first female die (4) sinks into the recess (221), a plurality of protrusions (222) are arranged on the inner wall of the recess (221), the first blanking cavities (41) are arranged in plurality, and the protrusions (222) are correspondingly inserted into the first blanking cavities (41); a row of cutting groups (30) are positioned beside a recess (221) and are arranged in parallel; the other row of cutting groups (30) are positioned beside the other recess (221) and are arranged in parallel; the position of the bulge (222) and the position of the first male die (3) are arranged in a staggered manner; the second punch (19) is also provided in plurality, and the second blanking cavity (15) is also provided in plurality.

10. The continuous strip forming and manufacturing process for forming the motor iron core according to claim 9, wherein the discharging assembly (2) further comprises a discharging plate seat (21) and a second movable discharging plate (22) which are fixed to each other, the discharging plate seat (21) is fixedly connected to the lower end of the first elastic telescoping mechanism (14), two through holes (214) corresponding to the two first female dies (4) are formed in the discharging plate seat (21), the first female dies (4) penetrate through the through holes (214), and recesses (221) corresponding to each other in position are formed in one inner wall of each through hole (214) close to the cutting group (30) and two corresponding side faces of the second movable discharging plate (22).