CN111284083B

CN111284083B - Woven bag manufacturing and folding processing equipment

Info

Publication number: CN111284083B
Application number: CN202010131747.6A
Authority: CN
Inventors: 萧思丽; 李艳芝
Original assignee: Shenyang Liwei Plastic Industry Co ltd
Current assignee: Shenyang Liwei Plastic Industry Co.,Ltd.
Priority date: 2020-02-29
Filing date: 2020-02-29
Publication date: 2021-09-21
Anticipated expiration: 2040-02-29
Also published as: CN111284083A

Abstract

The invention relates to a folding processing device for manufacturing woven bags, which comprises a bottom plate, an adjusting device, a folding device and a winding mechanism, wherein the adjusting device and the folding device are installed at the left end of the upper surface of the bottom plate, the adjusting device is positioned at the left side of the folding device, the winding mechanism is installed at the right end of the upper surface of the bottom plate, and the folding device is positioned at the left side of the winding mechanism. The invention can solve the problem that the folded woven bag can be folded in half when the folded woven bag is used in the production process of the woven bag, the woven bag can be symmetrically folded only by symmetrical a symmetrical line of the woven bag and the height of the bottom edge of the triangular folded part when the woven bag is folded, the requirement on the placement position of the woven bag is high, the woven bag is not easy to adjust, and when other sizes of woven bags are required, the folded part needs to be selected and replaced, so a long conveying device needs to be arranged, and the folded woven bag can utilize excessive resources.

Description

Woven bag manufacturing and folding processing equipment

Technical Field

The invention relates to the field of woven bag processing, in particular to a folding processing device for woven bag manufacturing.

Background

The woven bag is also called snake skin bag, is one kind of plastic and is used for packaging, and the raw material of the woven bag is various chemical plastic raw materials such as polyethylene, polypropylene and the like. Woven bags have a wide range of applications, are mainly used for packaging and packing various articles, and have wide industrial applications. The woven bag has wide application range, is mainly used for packing and packaging various articles, and has wide application in the industry; the plastic woven bag is made by using resin as main material and through extrusion, stretching into flat filament, weaving and bag making. The composite plastic woven bag is made by using plastic woven cloth as a base material and compounding the base material by a casting method. The packaging bag is used for packaging powdery or granular solid materials and flexible articles. The composite plastic woven bag is divided into a two-in-one bag and a three-in-one bag according to the main material composition. According to the sewing method, the sewing machine is divided into a bottom sewing bag, an edge sewing bottom bag, a pocket inserting bag and an adhesive sewing bag.

At present, in the production process of woven bags, a folding machine is used for folding woven bags, the existing folding machine generally conveys the woven bags from a to-be-folded woven bag roll to a folding part, the folding part is generally formed by an inclined triangle, the triangle is arranged into an isosceles triangle, the vertex angle of the triangular folding part is arranged on the edge of the bottom of the folding machine and is fixed in a bracket, the woven bags are conveyed from top to bottom through the surface of the triangular folding part and pass through the vertex angle of the triangular folding part, because the upper end and the lower end of the woven bags are straightened by a conveying device, when the woven bags pass through the corners of the triangular folding part, the woven bags can be tightly attached to the surface of the triangular folding part, when the woven bags are conveyed to the vertex angle of the triangular folding part on the surface of the triangular folding part, because the contact surface of the triangular folding part and the woven bags is smaller and smaller, when the woven bags pass through the vertex angle, the braided bag can use the line that the fixed angle of triangle-shaped folded part passed through on the braided bag to fold as the broken line, folds, then carries the braided bag of rigging machine with conveyor and collects to roll up on the braided bag. According to the method, when the woven bag is folded, the symmetrical line of the woven bag is symmetrical to the height of the bottom edge of the triangular folding part, so that the woven bag can be symmetrically folded, the requirement on the placing position of the woven bag is high, the woven bag is not easy to adjust, when the woven bag with other sizes needs to be replaced, the folding part needs to be selected, a long conveying device needs to be arranged, and excessive resources can be utilized for folding the woven bag.

Disclosure of Invention

The invention aims to provide a folding processing device for manufacturing woven bags, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a folding processing device for manufacturing woven bags comprises a bottom plate, an adjusting device, a folding device and a winding mechanism, wherein the adjusting device and the folding device are installed at the left end of the upper surface of the bottom plate, the adjusting device is located on the left side of the folding device, the winding mechanism is installed at the right end of the upper surface of the bottom plate, and the folding device is located on the left side of the winding mechanism; wherein:

the adjusting device comprises an installation frame, a guide roller, a sector gear, a transition gear, an adjusting gear, a latch, a T-shaped plate, a rotating shaft rod, an adjusting turntable and an output front end, sliding grooves are symmetrically arranged at the front and back of the left end of the upper surface of the bottom plate, sliding blocks are slidably installed in the sliding grooves, the installation frame is installed on the sliding blocks, the inner wall of the right end of each sliding groove is connected with the installation frame through an electric push rod, the guide roller is arranged between the front and back of the installation frame, the sector gears are symmetrically installed at two ends of the guide roller, the transition gear is symmetrically installed on the inner wall of the front and back of the installation frame, the sector gear is meshed with the transition gear, the adjusting gear and the latch are installed on the inner wall of the front of the installation frame, the adjusting gear is located inside the latch, the transition gear is meshed with the adjusting gear, the adjusting gear is meshed with the latch, the T-shaped plate is installed on the inner wall of the lower end of the installation frame, the adjusting gear is connected with the T-shaped plate through the rotating shaft rod, the right end of the rotating shaft rod penetrates through the mounting frame to be connected with the adjusting turntable, the left end of the rotating shaft rod is sleeved with a return spring, and the right end of the guide roller is provided with an output front end;

the folding device comprises a trapezoidal frame, an angle adjusting mechanism, a downward adjusting mechanism and a forming mechanism, wherein a plurality of angle adjusting mechanisms are sequentially arranged in the trapezoidal frame from left to right;

the winding mechanism comprises a winding roller and a winding motor, baffle plates are symmetrically arranged at the right end of the trapezoidal frame up and down, the winding roller is installed between the baffle plates, and the lower end of the winding roller is connected with an output shaft of the winding motor.

As a further scheme of the invention: the angle adjusting mechanism comprises an upper adjusting groove, an adjusting moving block, a lower adjusting groove, a regulating screw block, a regulating screw rod, an adjusting rod, a telescopic plate, a rolling rod and a soft rubber pad, wherein the upper adjusting groove is formed in the upper inner wall of the trapezoidal frame, the adjusting moving block is symmetrically installed in the upper adjusting groove from front to back, the adjusting sliding rod is arranged in the upper adjusting groove, the adjusting moving block is penetrated through the regulating sliding rod, the lower adjusting groove is formed in the lower inner wall of the trapezoidal frame, the regulating screw block is symmetrically arranged in the lower adjusting groove from front to back, the regulating screw rod is arranged in the lower adjusting groove, the regulating screw block is penetrated through the regulating screw rod, the adjusting moving block is connected with the regulating screw block through the adjusting rod, the middle of the upper end of the lower adjusting groove is connected with the adjusting rod through the telescopic plate, the rolling rod is arranged on the telescopic plate, the soft rubber pad is connected between the telescopic plate, and the groove block is arranged in the middle of the soft rubber pad.

As a further scheme of the invention: the downward regulating mechanism comprises a fine regulating gear set, a fine regulating screw rod, a rectangular frame, a T-shaped rod and a sheet wheel, wherein a long plate is arranged at the top of the trapezoidal frame, the fine regulating gear set is installed on the long plate, the lower part of the fine regulating gear set is connected with the top end of the fine regulating screw rod, the bottom end of the fine regulating screw rod is connected with the rectangular frame, the rectangular frame is sequentially provided with the plurality of T-shaped rods from left to right, a buffer spring is sleeved between the inner wall of the lower end of the rectangular frame and the upper end of the T-shaped rod, and the bottom end of the T-shaped rod is provided with the sheet wheel.

As a further scheme of the invention: the forming mechanism comprises an upper forming groove, a forming moving block, a lower forming groove, a forming wire block, a forming lead screw, a forming wheel, a soldering iron ring and a forming roller, the inner wall is provided with the upper forming groove on the right end of the trapezoid frame, the forming moving block is symmetrically installed in the upper forming groove in the front and back direction, the forming sliding rod is arranged in the upper forming groove, the forming moving block is penetrated by the forming sliding rod, the lower inner wall of the right end of the trapezoid frame is provided with the lower forming groove, the forming wire block is symmetrically arranged in the lower forming groove in the front and back direction, the forming lead screw is arranged in the lower forming groove, the forming wire block is penetrated by the forming lead screw, the forming wheel is arranged on the forming wire block, the forming iron ring is arranged on the outer side of the forming wheel, the forming roller is installed on the forming wheel, and the forming moving block is connected with the top end of the forming roller.

Compared with the prior art, the invention has the following advantages:

can solve at present in the production process of weaving the bag, to the braided bag fifty percent discount, the use is that following problem can appear in the fifty percent discount chance, when carrying out the braided bag folding, need be symmetrical line of braided bag and the high symmetry on the base of triangle-shaped fifty percent discount portion, just enable the braided bag symmetry folding, it is higher to the locating place requirement of braided bag, also be difficult to adjust, carry out other sizes along with the braided bag when needs, will carry out the selection change to the discount portion, so need set up longer conveyor, can utilize too much resource to the folding of braided bag like this.

When the device works, the adjusting device can respectively adjust the distance and the angle of the woven bag from the folding device, the electric push rod pushes the mounting frame to move to a position suitable for the folding device, and then the turntable is adjusted to adjust the angle between the output front end and the folding device, so that the woven bag cannot be deviated and damaged at the edge when entering the folding device; the fifty percent discount device is when the braided bag fifty percent discount, and the angle of angle modulation mechanism with the braided bag fifty percent discount process that diminishes gradually, down regulation mechanism can clearly roll extrusion out with the position of braided bag fifty percent discount, and forming mechanism heats the position of braided bag fifty percent discount for the braided bag is fifty percent discount completely, keeps this state and can not appear skewing in the subsequent course of working of convenient braided bag always, leads to the later stage to make up the problem.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the front cross-sectional plan structure of the present invention;

FIG. 3 is a schematic view of the present invention in a partially enlarged plan view at A of FIG. 2;

FIG. 4 is a schematic plan view of a cross-section of the angling mechanism of the present invention;

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 4.

A folding processing device for manufacturing woven bags comprises a bottom plate 1, an adjusting device 2, a folding device 3 and a winding mechanism 4, wherein the adjusting device 2 and the folding device 3 are installed at the left end of the upper surface of the bottom plate 1, the adjusting device 2 is located on the left side of the folding device 3, the winding mechanism 4 is installed at the right end of the upper surface of the bottom plate 1, and the folding device 3 is located on the left side of the winding mechanism 4; wherein:

the adjusting device 2 comprises a mounting frame 20, a guide roller 21, a sector gear 22, a transition gear 23, an adjusting gear 24, a latch 25, a T-shaped plate 26, a rotating shaft rod 27, an adjusting turntable 28 and an output front end 29, sliding chutes 10 are symmetrically arranged at the front and back of the left end of the upper surface of the bottom plate 1, sliding blocks 11 are arranged in the sliding chutes 10 in a sliding manner, the mounting frame 20 is mounted on the sliding blocks 11, the inner wall of the right end of the sliding chutes 10 is connected with the mounting frame 20 through an electric push rod 12, the guide roller 21 is arranged between the front and back of the mounting frame 20, the sector gears 22 are symmetrically mounted at two ends of the guide roller 21, the transition gear 23 is symmetrically mounted on the front and back inner walls of the mounting frame 20, the sector gears 22 are meshed with the transition gear 23, the adjusting gear 24 and the latch 25 are mounted on the front inner wall of the mounting frame 20, the adjusting gear 24 is positioned in the latch 25, the transition gear 23 is meshed with the adjusting gear 24, the latch 25 is meshed with the adjusting gear 24, a T-shaped plate 26 is mounted on the inner wall of the lower end of the mounting frame 20, the adjusting gear 24 is connected with the T-shaped plate 26 through a rotating shaft rod 27, the right end of the rotating shaft rod 27 penetrates through the mounting frame 20 to be connected with an adjusting turntable 28, a return spring is sleeved on the left end of the rotating shaft rod 27, and an output front end 29 is arranged at the right end of the guide roller 21; during specific work, the manual work rotates regulation carousel 28, the angle regulation through cooperation between the gear with output front end 29 and fifty percent discount device 3 is to suitable position, restart electric putter 12 will export the distance between front end 29 and the fifty percent discount device 3 and adjust suitably, can make the braided bag from the guide roll 21 conveying come into fifty percent discount device 3 when having certain transition like this, can not lead to the impaired of braided bag, can also change the braided bag of different specifications according to actual requirement and carry out fifty percent discount processing, and the device easy operation, high durability and convenient use.

The folding device 3 comprises a ladder-shaped frame 30, an angle adjusting mechanism 31, a downward adjusting mechanism 32 and a forming mechanism 33, wherein the angle adjusting mechanisms 31 are sequentially arranged in the ladder-shaped frame 30 from left to right, the downward adjusting mechanism 32 is arranged above the ladder-shaped frame 30, the forming mechanism 33 is arranged at the right end of the ladder-shaped frame 30, support plates are symmetrically arranged at the left end of the ladder-shaped frame 30 from top to bottom, and mounting rollers 301 are arranged between the support plates; during specific work, the woven bag that adjusting device 2 conveying was come, when carrying out the fifty percent discount to it, the process of fifty percent discount is required, and the angle of woven bag fifty percent discount reduces under angle modulation mechanism 31's effect from the front backward gradually, and down modulation mechanism 32 cooperates angle modulation mechanism 31 to roll out the crease line in the middle of the woven bag, is woven by forming mechanism 33 again and is the shaping processing of rearmost for the woven bag crease is effective for a long time, makes things convenient for going on of follow-up work of making up.

The angle adjusting mechanism 31 comprises an upper adjusting groove 310, an adjusting moving block 311, a lower adjusting groove 312, an adjusting thread block 313, an adjusting screw 314, an adjusting rod 315, a telescopic plate 316, a rolling rod 317 and a soft rubber pad 318, the upper inner wall of the trapezoidal frame 30 is provided with the upper adjusting groove 310, the adjusting moving block 311 is symmetrically arranged in the upper adjusting groove 310 in the front-back direction, an adjusting slide rod 3100 is arranged in the upper adjusting groove 310, the adjusting moving block 311 is penetrated by the adjusting slide rod 3100, the lower inner wall of the trapezoidal frame 30 is provided with the lower adjusting groove 312, the adjusting thread blocks 313 are symmetrically arranged in the lower adjusting groove 312 in the front-back direction, the adjusting screw 314 is arranged in the lower adjusting groove 312, the adjusting thread blocks 313 are penetrated by the adjusting screw rod 314, the adjusting moving block 311 is connected with the adjusting thread blocks 313 through the adjusting rod 315, the middle part of the upper end of the lower adjusting groove 312 is connected with the adjusting rod 315 through the telescopic plate 316, the rolling rod 317 is arranged on the telescopic plate 316, the soft rubber pad 318 is connected between the telescopic plates 316, a groove block 3180 is arranged in the middle of the soft rubber pad 318; during specific work, the adjusting screw 314 is rotated to enable the adjusting screw block 313 to be folded or separated, then the adjusting rod 315 moves to drive the telescopic plate 316 to extend and shorten, and angle adjustment during folding of the woven bag is achieved.

The downward adjusting mechanism 32 comprises a fine adjusting gear set 320, a fine adjusting screw rod 321, a rectangular frame 322, T-shaped rods 323 and sheet wheels 324, a long plate 303 is arranged at the top of the trapezoidal frame 30, the fine adjusting gear set 320 is installed on the long plate 303, the lower part of the fine adjusting gear set 320 is connected with the top end of the fine adjusting screw rod 321, the bottom end of the fine adjusting screw rod 321 is connected with the rectangular frame 322, the rectangular frame 322 is sequentially provided with a plurality of T-shaped rods 323 from left to right, a buffer spring is sleeved between the inner wall of the lower end of the rectangular frame 322 and the upper ends of the T-shaped rods 323, and the sheet wheels 324 are arranged at the bottom ends of the T-shaped rods 323; during specific work, the fine adjustment gear set 320 is rotated to drive the rectangular frame 322 to move up and down through the fine adjustment screw rod 321, so that the sheet wheel 324 at the bottom end of the T-shaped rod 323 is matched with the groove block 3180 to realize crease depth of the woven bag.

The forming mechanism 33 comprises an upper forming groove 330, a forming moving block 331, a lower forming groove 332, a forming wire block 333, a forming screw rod 334, a forming wheel 335, a soldering iron ring 336 and a forming roller 337, the upper inner wall of the right end of the trapezoidal frame 30 is provided with the upper forming groove 330, the forming moving blocks 331 are symmetrically installed in the upper forming groove 330 in the front-back direction, a forming slide rod 3300 is arranged in the upper forming groove 330, the forming moving block 331 is penetrated through by the forming slide rod 3300, the lower inner wall of the right end of the trapezoidal frame 30 is provided with the lower forming groove 332, the forming wire blocks 333 are symmetrically arranged in the lower forming groove 332 in the front-back direction, the forming screw rod 334 is arranged in the lower forming groove 332, the forming wire block 333 is penetrated through by the forming screw rod 334, the forming wheel 335 is arranged on the forming wire block 333, the soldering iron ring 336 is arranged on the outer side of the forming wheel 335, the forming roller 337 is installed on the forming wheel 335, and the forming moving block 331 is connected with the top end of the forming roller 337; during specific work, the distance between the forming wheels 335 is adjusted by rotating the forming screw 334, so that the iron ring 336 can be attached to the crease of the woven bag, then the crease is heated, the crease of the woven bag can be kept for a long time, and the woven bag can be conveniently sewn or used in the future.

The winding mechanism 4 comprises a winding roller 40 and a winding motor 41, baffle plates 302 are symmetrically arranged at the right end of the trapezoidal frame 30 from top to bottom, the winding roller 40 is arranged between the baffle plates 302, and the lower end of the winding roller 40 is connected with an output shaft of the winding motor 41; during specific work, the winding motor rotates 41 to drive the winding roller 40 to rotate, and the woven bag which is folded is wound.

The working principle of the invention is as follows:

according to the specification of the woven bag, firstly, the adjusting device 2 is adjusted, the adjusting turntable 28 is manually rotated, the angle between the output front end 29 and the folding device 3 is adjusted to a proper position through the matching between the gears, then, the electric push rod 12 is started to adjust the distance between the output front end 29 and the folding device 3 properly, then, the folding device 3 is adjusted, the woven bag conveyed by the adjusting device 2 needs a folding process when being folded, the folding angle from front to back is gradually reduced under the action of the angle adjusting mechanism 31, the lower adjusting mechanism 32 is matched with the angle adjusting mechanism 31 to roll a crease line in the middle of the woven bag, and then, the forming mechanism 33 is used for carrying out the last forming treatment on the woven bag, so that the crease line of the woven bag is effective for a long time, finally, the rolling motor rotates 41 to drive the rolling roller 40 to rotate, and the woven bag which is folded is rolled.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a braided bag preparation fifty percent discount processing equipment, includes bottom plate (1), adjusting device (2), fifty percent discount device (3) and winding mechanism (4), its characterized in that: the left end of the upper surface of the bottom plate (1) is provided with an adjusting device (2) and a folding device (3), the adjusting device (2) is positioned on the left side of the folding device (3), the right end of the upper surface of the bottom plate (1) is provided with a winding mechanism (4), and the folding device (3) is positioned on the left side of the winding mechanism (4); wherein:

the adjusting device (2) comprises a mounting frame (20), a guide roller (21), sector gears (22), transition gears (23), adjusting gears (24), clamping teeth (25), T-shaped plates (26), a rotating shaft rod (27), an adjusting turntable (28) and an output front end (29), sliding chutes (10) are symmetrically arranged at the front and back of the left end of the upper surface of the bottom plate (1), sliding blocks (11) are slidably mounted in the sliding chutes (10), the mounting frame (20) is mounted on the sliding blocks (11), the inner wall of the right end of the sliding chutes (10) is connected with the mounting frame (20) through electric push rods (12), the guide roller (21) is arranged between the front and back of the mounting frame (20), the sector gears (22) are symmetrically mounted at two ends of the guide roller (21), the transition gears (23) are symmetrically mounted on the front and back inner walls of the mounting frame (20), and the sector gears (22) are meshed with the transition gears (23), an adjusting gear (24) and a latch (25) are mounted on the front inner wall of the mounting frame (20), the adjusting gear (24) is located inside the latch (25), the transition gear (23) is meshed with the adjusting gear (24), the adjusting gear (24) is meshed with the latch (25), a T-shaped plate (26) is mounted on the inner wall of the lower end of the mounting frame (20), the adjusting gear (24) is connected with the T-shaped plate (26) through a rotating shaft rod (27), the right end of the rotating shaft rod (27) penetrates through the mounting frame (20) to be connected with an adjusting turntable (28), a reset spring is sleeved on the left end of the rotating shaft rod (27), and an output front end (29) is arranged at the right end of the guide roller (21);

the folding device (3) comprises a ladder-shaped frame (30), a plurality of angle adjusting mechanisms (31), a down-adjusting mechanism (32) and a forming mechanism (33), wherein the angle adjusting mechanisms (31) are sequentially arranged in the ladder-shaped frame (30) from left to right, the down-adjusting mechanism (32) is arranged above the ladder-shaped frame (30), the forming mechanism (33) is arranged at the right end of the ladder-shaped frame (30), support plates are symmetrically arranged at the left end of the ladder-shaped frame (30) from top to bottom, and mounting rollers (301) are mounted between the support plates;

the winding mechanism (4) comprises a winding roller (40) and a winding motor (41), baffle plates (302) are symmetrically arranged at the right end of the trapezoidal frame (30) up and down, the winding roller (40) is installed between the baffle plates (302), and the lower end of the winding roller (40) is connected with an output shaft of the winding motor (41).

2. The folding processing equipment for manufacturing the woven bags according to claim 1, which is characterized in that: the angle adjusting mechanism (31) comprises an upper adjusting groove (310), an adjusting moving block (311), a lower adjusting groove (312), an adjusting thread block (313), an adjusting screw rod (314), an adjusting rod (315), a telescopic plate (316), a rolling rod (317) and a soft rubber pad (318), the upper inner wall of the trapezoidal frame (30) is provided with the upper adjusting groove (310), the adjusting moving block (311) is symmetrically installed in the upper adjusting groove (310) front and back, an adjusting sliding rod (3100) is arranged in the upper adjusting groove (310), the adjusting moving block (311) is penetrated by the adjusting sliding rod (3100), the lower inner wall of the trapezoidal frame (30) is provided with the lower adjusting groove (312), the adjusting thread block (313) is symmetrically arranged in the lower adjusting groove (312) front and back, the adjusting screw rod (314) is arranged in the lower adjusting groove (312), the adjusting thread block (313) is penetrated by the adjusting screw rod (314), the adjusting moving block (311) is connected with the adjusting thread block (313) through the adjusting rod (315), the middle part of the upper end of the lower adjusting groove (312) is connected with the adjusting rod (315) through a telescopic plate (316), a rolling rod (317) is arranged on the telescopic plate (316), a soft rubber cushion (318) is connected between the telescopic plates (316), and a groove block (3180) is arranged in the middle of the soft rubber cushion (318).

3. The folding processing equipment for manufacturing the woven bags according to claim 1, which is characterized in that: down-regulating mechanism (32) are including fine setting gear train (320), fine setting lead screw (321), rectangle frame (322), T-bar (323) and piece wheel (324), trapezoidal frame (30) top is provided with long board (303), install fine setting gear train (320) on long board (303), fine setting gear train (320) below is connected with fine setting lead screw (321) top, fine setting lead screw (321) bottom is connected with rectangle frame (322), rectangle frame (322) turn right from a left side and set gradually a plurality of T-bar (323), buffer spring has been cup jointed between rectangle frame (322) lower extreme inner wall and T-bar (323) upper end, T-bar (323) bottom is provided with piece wheel (324).

4. The folding processing equipment for manufacturing the woven bags according to claim 1, which is characterized in that: the forming mechanism (33) comprises an upper forming groove (330), a forming movable block (331), a lower forming groove (332), a forming wire block (333), a forming screw rod (334), a forming wheel (335), a soldering iron ring (336) and a forming roller (337), the upper inner wall of the right end of the trapezoidal frame (30) is provided with the upper forming groove (330), the forming movable block (331) is symmetrically installed in the upper forming groove (330) from front to back, a forming slide rod (3300) is arranged in the upper forming groove (330), the forming movable block (331) is penetrated by the forming slide rod (3300), the lower inner wall of the right end of the trapezoidal frame (30) is provided with the lower forming groove (332), the forming wire block (333) is symmetrically arranged in the lower forming groove (332) from front to back, the forming screw rod (334) is arranged in the lower forming groove (332), the forming wire block (333) is penetrated by the forming screw rod (334), the forming wheel (335) is arranged on the forming wire block (333), an iron ring (336) is arranged on the outer side of the forming wheel (335), a forming roller (337) is arranged on the forming wheel (335), and a forming moving block (331) is connected with the top end of the forming roller (337).