CN111640621A

CN111640621A - Bending device and bending method for machining protective tube

Info

Publication number: CN111640621A
Application number: CN202010397665.6A
Authority: CN
Inventors: 丁水珍; 韩涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-09-08

Abstract

The invention relates to a bending device for machining a protective tube, which comprises a material fixing assembly, a base, an extending cylinder, a moving block, a turning cylinder, a gear rack group and a bending piece, wherein the material fixing assembly is arranged on the base; the base is fixed on the frame, the moving block is movably connected to the base, the extension cylinder is arranged on the base, and the telescopic end of the extension cylinder is connected with the moving block; the movable block is provided with an installation vertical plate, the overturning cylinder is arranged on the side of the installation vertical plate, the installation vertical plate is further provided with a slide rail, and the bending piece is rotatably connected to the side of the installation vertical plate. The invention has the advantages of one-time bending and accurate and controllable bending radian.

Description

Bending device and bending method for machining protective tube

Technical Field

The invention relates to the technical field of production of protective tubes, in particular to a bending device for processing a protective tube.

Background

In electronic products, some electronic products need to connect a fuse in a circuit to protect the working safety of the circuit, and the fuse is generally plugged on an electronic circuit board; current types of fuse tubes generally include vertical fuse tubes and horizontal fuse tubes. Vertical protective tube passes through the mode setting of electrode welding on the circuit board, because the PCB board needs the demand of structure smallness, so need improve the protective tube welding methods commonly used, reduce the distance between the original paper as far as possible, bend one section of protective tube, become two electrodes side by side to reduce spatial structure.

The patent with the patent name of a combined type protective tube bushing forming device, which is disclosed by the Chinese intellectual property office and has the publication number of CN208903939U, comprises a controller and a rotating disc, wherein a plurality of clips for clamping a bushing are annularly arranged on the periphery of the rotating disc at equal intervals, the device comprises a rotating disc, a sleeve feeding mechanism, a protective tube feeding mechanism, a limiting mechanism, a heat shrinkage mechanism for performing heat shrinkage on a protective tube penetrating through the sleeve, a vertical forming mechanism for performing vertical protective tube forming on the protective tube after heat shrinkage, a vertical protective tube blanking mechanism for blanking the vertical protective tube, pin cutting mechanisms for cutting two ends of the protective tube after heat shrinkage, a horizontal forming mechanism for performing horizontal protective tube forming on the protective tube after heat shrinkage and a horizontal protective tube blanking mechanism for blanking the horizontal protective tube.

The prior art fuse sticker forming machine has the following technical problems: 1. the bending radian of the protective tube is difficult to control, and the protective tube needs to be bent for multiple times; 2. the electrode terminal of the protective tube is easy to bend when being cut, the cutting waste material blanking in the vertical posture is difficult to determine, and the waste material is difficult to collect; 3. the action of sticking the gummed paper on the surface of the cylindrical protective tube is difficult; 4. the action of clamping and loosening the fuse tube is complex, and the structure of arranging a plurality of finger cylinders is complex.

Disclosure of Invention

The purpose of the invention is: aiming at the problems that the bending radian of the protective tube in the prior art is difficult to control and the protective tube needs to be bent for multiple times, the bending device for processing the protective tube is provided, wherein the bending radian is accurate and controllable.

The purpose of the invention is realized by adopting the following technical scheme:

a bending device for machining a protective tube comprises a material fixing assembly, a base, an inserting cylinder, a moving block, a turning cylinder, a gear rack group and a bending piece, wherein the material fixing assembly is arranged on the base; the base is fixed on the frame, the moving block is movably connected to the base, the extension cylinder is arranged on the base, and the telescopic end of the extension cylinder is connected with the moving block; the movable block is provided with an installation vertical plate, the overturning cylinder is arranged on the side of the installation vertical plate, the installation vertical plate is also provided with a slide rail, and the bending piece is rotatably connected to the side of the installation vertical plate; the bending piece is in a round shaft shape, two slender round shafts are arranged at the end part of the bending piece, the first round shaft is arranged at the axle center of the end part of the bending piece, the second round shaft is arranged at the eccentric position of the end part of the bending piece, a gap is reserved between the first round shaft and the second round shaft, and the gap is used for an electrode of the protective tube to pass through.

Preferably, the material fixing assembly comprises a folded plate, a limiting finger cylinder and a limiting block; spacing finger cylinder is installed on the folded plate, and the stopper is installed at two removal ends of spacing finger cylinder, and the stopper is outstanding to side, and the top is left the space and is given the rotation of the piece of bending, the relative one side of stopper be provided with the arc breach.

Preferably, the gear rack group comprises a gear and a rack which are meshed with each other, the rack is movably matched in the sliding rail, the bending piece is fixed with the gear, and the rack is connected with the telescopic end of the overturning cylinder.

The utility model provides a bending method for vertical protective tube, use foretell bending device, spacing finger cylinder drives the stopper and is close to each other, make vertical protective tube electrode be located the arc breach, carry on spacingly, then stretch into the cylinder extension and shift out the movable block, make the piece of bending stretch into in the protective tube electrode, first round axle and second round axle block the electrode of protective tube, then the cylinder extension that overturns, drive gear rack group work, make the piece of bending rotate one hundred eighty degrees, bend the electrode, then the piece of bending withdraws from the side.

A vertical fuse sticker forming machine comprises a rack, and a rotary clamp device, a braid disassembling device, a straightening device, a cutting device, a sticker device and a bending device which are arranged on the rack; the rotary clamp device is arranged in the middle of the rack, and the braid removing device, the straightening device, the cutting device, the paper pasting device and the bending device are sequentially arranged on the periphery of the rotary clamp device in a surrounding manner; the rotary clamp device is provided with a plurality of stations which are respectively a feeding station, a straightening station, a cutting station, a paper pasting station, a bending station and a discharging station; the braid stripping device corresponds to a feeding station, the straightening device corresponds to a straightening station, the cutting device corresponds to a cutting station, the pasting device corresponds to a pasting station, and the bending device corresponds to a bending station; a hopper is arranged below the blanking station; the bending device adopts the technical scheme to manufacture the fuse tube.

Preferably, the rotary fixture device is used for clamping the protective tube and rotationally moving the protective tube, the braid removing device is used for removing the protective tube from the braid to achieve feeding, the straightening device is used for straightening an end electrode of the protective tube, the cutting device is used for cutting the redundant part of the electrode, the paper pasting device is used for pasting gummed paper on the surface of the protective tube, and the bending device is used for bending the electrode of the protective tube.

The bending device for machining the protective tube, which adopts the technical scheme, has the advantages that: the bending is carried out by arranging a first round shaft and a second round shaft, wherein the first round shaft is used as a rotation center, the second round shaft is used as a bending part, so that the bending radian is related to the diameter of the first round shaft, and the radian of multiple times of bending is kept uniform; the bending piece is adopted for bending once, so that the bending speed is improved compared with a method of bending for multiple times; the lower end of the bending part is limited by the limiting block, so that bending is prevented, and the bending quality is improved.

The vertical fuse sticker forming machine adopting the technical scheme and the working method thereof have the advantages that:

1. the rotary clamp device drives the clamp assembly to rotate by arranging the rotary disc, so that the conveying is realized, the conveying efficiency of the protective tube is improved, the clamp assembly is matched with the driving assembly for use, the clamp assembly is not provided with a power source, the normally closed clamping force is kept through a torsion spring, the structure is light, and the opening and closing can be realized through the driving assembly at a specified station; the clamp assembly realizes synchronous movement of the two clamping jaws in a mode that the two racks are arranged on the two sides of the gear, and compared with a mode that the two racks are pressed through cylindrical springs respectively, the motion synchronism of the clamping jaws on the two sides driven by the torsion springs and the gear racks is high.

2. The cutting device is used for pressing the electrode terminal of the fuse tube by arranging the pressing cutter block, and cutting is carried out after pressing, so that the electrode terminal is prevented from being bent by shearing force, and the straightness of the electrode terminal of the fuse tube is kept; cooperate with the portion of keeping off through setting up the cutter piece, form the cavity of an slope, the cavity bottom is the blade holder, is provided with the blanking hole in the blade holder, and the waste material after will cutting continues to promote from side, falls from the blanking hole and realizes collecting, confirms the blanking direction of waste material, is convenient for collect.

3. The paper sticking device sticks paper by a rolling sticking method, the fuse tube is clamped by clamping fingers and then rotates, so that the sticking paper is coated on the fuse tube, and the gluing process is completed; the adhesive tape is sent out, fixed and cut in the feeding direction, so that the continuous feeding of the adhesive tape is realized, and the adhesive tape sticking efficiency is improved; compared with a mode of pasting glue on release paper, the method for pasting the glue has higher utilization rate of the glue paper, avoids the procedure of stripping the glue paper and improves the efficiency of pasting the glue paper; the paper pressing block of the groove type reduces the paper pressing area, prevents the adhesive tape from being stuck, and improves the adhesive tape feeding efficiency.

4. The bending device bends by arranging a first circular shaft and a second circular shaft, wherein the first circular shaft is used as a rotation center, the second circular shaft is used as a bending part, so that the bending radian is related to the diameter of the first circular shaft, and the multiple bending radians are kept uniform; the bending piece is adopted for bending once, so that the bending speed is improved compared with a method of bending for multiple times; the lower end of the bending part is limited by the limiting block, so that bending is prevented, and the bending quality is improved.

Drawings

Fig. 1 is an exploded view of a vertical fuse sticker molding machine according to an embodiment of the present invention.

Fig. 2 is an exploded view of the rotary jig device.

Fig. 3 is an exploded view of the clamp assembly.

Fig. 4 is an exploded view of the braid stripping device.

Fig. 5 is an exploded view of the straightening apparatus.

Fig. 6 is an exploded view of the cutting device.

Fig. 7 is an exploded view of the decal device.

Fig. 8 is an exploded view of the bending apparatus.

Fig. 9 is a structural view of the vertical fuse.

Detailed Description

As shown in fig. 1, a vertical fuse sticker forming machine comprises a frame 1, and a rotary clamp device 2, a braid stripping device 3, a straightening device 4, a cutting device 5, a sticker device 6 and a bending device 7 which are arranged on the frame 1; the rotary clamp device 2 is arranged in the middle of the frame 1, and the braid removing device 3, the straightening device 4, the cutting device 5, the sticker device 6 and the bending device 7 are sequentially arranged on the periphery of the rotary clamp device 2 in a surrounding manner; the rotary clamp device 2 is provided with a plurality of stations, namely a feeding station 201, a straightening station 202, a cutting station 203, a sticker station 204, a bending station 205 and a blanking station 206; the braid disassembling device 3 corresponds to a feeding station 201, the straightening device 4 corresponds to a straightening station 202, the cutting device 5 corresponds to a cutting station 203, the sticker device 6 corresponds to a sticker station 204, and the bending device 7 corresponds to a bending station 205; a hopper is arranged below the blanking station 206.

The device comprises a rotary clamp device 2, a braid disassembling device 3, a straightening device 4, a cutting device 5, a pasting device 6 and a bending device 7, wherein the rotary clamp device 2 is used for clamping a protective tube and carrying out rotary movement, the braid disassembling device 3 is used for disassembling the protective tube from a braid to realize feeding, the straightening device 4 is used for straightening an end electrode of the protective tube, the cutting device 5 is used for cutting redundant parts of the electrode, the pasting device 6 is used for pasting gummed paper on the surface of the protective tube, and the bending device 7 is used for bending the electrode of the protective tube. The paper sticking device 6 is a bending device for processing the protective tube.

As shown in fig. 2 and 3, the rotary clamping device 2 comprises a servo motor 21, a cam divider 22, a rotary disc 23, a fixed disc 24, a clamping assembly 25 and a driving assembly 26; the cam divider 22 is arranged on the frame, and the output end of the servo motor 21 is connected with the input shaft of the cam divider 22 through a belt; the upper end of the cam divider 22 is provided with a rotating shaft part and a fixed shaft part which are coaxial, the rotating disc 23 is arranged on the rotating shaft part, the fixed disc 24 is arranged on the fixed shaft part, and the fixed disc 24 is positioned above the rotating disc 23; six stations are arranged on the periphery of the rotating disc 23, namely a feeding station 201, a straightening station 202, a cutting station 203, a sticker station 204, a bending station 205 and a blanking station 206; anchor clamps subassembly 25 evenly install a week at rolling disc 23, drive assembly 26 install in the frame, drive assembly 26 is provided with the multiunit, corresponds the anchor clamps subassembly 25 below of material loading station 201, sticker station 204 and unloading station 206 respectively. The clamp assembly 25 is used for clamping a fuse tube, and the driving assembly 26 is used for releasing the clamped fuse tube.

The clamp assembly 25 comprises a mounting frame 251, a ball 253, a clamping jaw 254, a rack 255 and a gear 256; a sliding rod 252 is arranged in the mounting frame 251, the rack 255 is movably matched in the sliding rod 252, the rack 255 is meshed at two sides of a gear 256, the gear 256 is rotatably connected in the mounting frame 251, and a torsion spring is arranged at the hinged position of the gear 256 and the mounting frame 251; the clamping jaw 254 is arranged on the rack 255, the ball 253 is arranged at the end part of the clamping jaw 254, and the ball 253 is positioned at the outer side of the mounting frame 251; the clamping jaws 254 are oppositely arranged, the end parts of the clamping jaws 254 are clamping parts 2541, the inner side of one clamping part 2541 is provided with a V-shaped groove, the inner side of the other clamping part 2541 is provided with a V-shaped convex block, a round hole is reserved in the middle part of the two clamping parts after being folded, and an electrode of the protective tube is positioned in the round hole.

The driving assembly 26 comprises a driving cylinder 261, a driving sharp block 262 and a guide block 263; the driving tip block 262 is installed at the telescopic end of the driving cylinder 261, a vertical groove is formed in the guide block 263, the driving tip block 262 is matched in the vertical groove in the guide block 263, the top of the driving tip block 262 is in the shape of an isosceles triangle, and the driving tip block 262 is located below the ball 253.

When the rotary clamp device 2 works, the servo motor 21 drives the cam divider 22 to work, so that the rotary disc 23 rotates sixty degrees each time to drive the clamp assembly 25 to rotate, and when the feeding station 201, the sticker station 204 and the blanking station 206 are carried out, the driving cylinder 261 of the driving assembly 26 drives the driving pointed block 262 to ascend, the driving pointed block 262 pushes the balls 253 to expand outwards, so that the two clamping jaws 254 are separated, and the operations of loading, clamping and blanking of the fuse tube can be carried out; after the driving tip 262 descends, the torsion spring drives the gear 256 to rotate, so that the two racks 255 are pressed inwards to clamp the fuse tube.

The rotary clamp device 2 solves the problems that the actions of clamping and loosening the protective tube are complicated, and the structure of arranging a plurality of finger cylinders is complex, the rotary disc 23 is arranged to drive the clamp assembly 25 to rotate, so that the conveying is realized, the conveying efficiency of the protective tube is improved, the clamp assembly 25 is matched with the driving assembly 26 for use, the clamp assembly 25 is not provided with a power source, the normally closed clamping force is kept through a torsion spring, the structure is light, and the opening and closing can be realized through the driving assembly 26 at a specified station; the clamp assembly 25 realizes synchronous movement of the two clamping jaws 254 by arranging two racks on two sides of the gear, and compared with a mode of pressing the two clamping jaws 254 respectively through cylindrical springs, the movement synchronism of the clamping jaws 254 on two sides driven by the torsion springs and the racks and the gears is high.

As shown in fig. 4, the braid stripping device 3 includes a substrate 31, a braid stripping mechanism 32, a sliding seat 33, a traversing cylinder 34, a sliding block 35, a moving material receiving frame 361, a fixed material receiving frame 362, a rotating cylinder 37, a finger cylinder 38 and a clamping block 39; the braid disassembling mechanism 32 is arranged on the substrate 31, the sliding block 35 is movably matched on the sliding seat 33, the transverse moving cylinder 34 is fixed on the sliding seat 33, and the telescopic end of the transverse moving cylinder 34 is connected with the sliding block 35; a longitudinal moving cylinder is arranged on the sliding block 35, a movable material receiving frame 361 is arranged at the telescopic end of the longitudinal moving cylinder, and material placing grooves 363 are arranged at two ends of the movable material receiving frame 361; the fixed material receiving frame 362 is fixed on the sliding seat 33; a rotary cylinder 37 is installed on the base plate 31, a finger cylinder 38 is installed at a rotating end of the rotary cylinder 37, and clamping blocks 39 are provided at both moving ends of the finger cylinder 38.

When the braid stripping device 3 works, the movable material receiving frame 361 is connected with the discharge end of the braid stripping mechanism 32, the movable material receiving frame 361 carries the received protective tube and places the protective tube on the fixed material receiving frame 362, then the finger cylinder 38 is rotated by the rotary cylinder 37, the clamping block 39 clamps the end part of the protective tube, and the protective tube is turned over and lifted, so that feeding is realized.

As shown in fig. 5, the straightening device 4 includes a support plate 41, a straightening cylinder 42 and a straightening column 43; the support plate 41 is installed on the fixed plate 24, the straightening cylinder 42 is vertically installed on the support plate 41, the straightening column 43 is movably connected to the side of the support plate 41, the straightening column 43 is connected with the telescopic end of the straightening cylinder 42, a through pore is formed in the straightening column 43, and an inner conical surface is formed on the lower end face of the straightening column 43.

As shown in fig. 6, the cutting device 5 includes a fixed slot seat 51, a cutting cylinder 52, a cutter block 53, a cutter pressing block 54 and a cutter seat 55; the fixed slot seat 51 is arranged on the fixed disc 24, a sliding slot 511 is arranged in the fixed slot seat 51, the end part of the fixed slot seat 51 is a blocking part 512, a gap is reserved between the blocking part 512 and the fixed slot seat 51, and the inner side of the blocking part 512 is an inclined plane; the cutting knife block 53 is movably matched with the sliding groove 511 of the fixed groove seat 51, the cutting air cylinder 52 is fixed on the fixed groove seat 51, the telescopic end of the cutting air cylinder 52 is connected with the cutting knife block 53, the end part of the cutting knife block 53 is an inclined blade surface, and the inclined angle of the blade surface is matched with the inclined plane on the inner side of the blocking part 512; the pressing knife block 54 is movably matched in the sliding groove 511, and the pressing knife block 54 is positioned below the cutting knife block 53; the pressing knife block 54 is provided with a long groove 541, and the side edge of the pressing knife block 54 is a flat pressing part 542 for pressing an electrode of the fuse tube; a convex shaft is arranged on the lower end face of the cutter block 53, the convex shaft is matched with the groove pair formed by the long groove 541, a spring is arranged between the convex shaft and the long groove 541, the spring presses the cutter pressing block 54 outwards, and a pressing part 542 of the cutter pressing block 54 protrudes out of the edge face of the cutter block 53; the cutter holder 55 is arranged right below the blocking part 512, a step 551 is arranged in the cutter holder 55, a blanking hole 552 is formed in the step 551, and the side surface of the step 551 corresponds to the blade surface of the cutter block 53; a blanking slide rail 56 is arranged below the tool apron 55, and the blanking slide rail 56 corresponds to the blanking hole 552.

When the cutting device 5 works, the protective tube is vertically arranged, the cutting cylinder 52 extends to drive the cutter block 53 and the cutter pressing block 54 to be pushed out, the electrode of the protective tube is pressed through the cutter pressing block 54 at first, then the spring is compressed, the cutter block 53 continues to extend out, the cutter block 53 and the cutter holder 55 realize cutting of the protective tube, the cut waste materials are continuously ejected out from the inclined surface of the cutter block 53, and the waste materials fall into the blanking slide rail 56 at the blanking hole 552 to realize blanking.

The cutting device 5 solves the problems that the electrode terminal of the protective tube is easy to bend when being cut, the cutting waste material blanking is difficult to determine in the vertical posture, and the waste material is difficult to collect; the electrode terminal of the fuse tube is compressed by the pressing knife block 54, and the electrode terminal is cut after being compressed, so that the electrode terminal is prevented from being bent by shearing force, and the straightness of the electrode terminal of the fuse tube is kept; cooperate with fender portion 512 through setting up cutter piece 53, form the cavity of an slope, the cavity bottom is blade holder 55, is provided with blanking hole 552 in the blade holder 55, and the waste material after will cutting continues to promote from side, falls from blanking hole 552 and realizes collecting, confirms the blanking direction of waste material, the collection of being convenient for.

As shown in fig. 7, the paper pasting device 6 includes a mounting base 61, a lifting cylinder 62, a rotating assembly 63, a paper pressing assembly 64, a cutting assembly 65, a paper pulling assembly 66 and a gummed paper turntable 67; the mounting seat 61 is fixed on the fixed disc 24, the lifting cylinder 62 is vertically mounted on the mounting seat 61, the rotating assembly 63 is movably connected to the mounting seat 61 through a sliding rail, and the rotating assembly 63 is connected with the telescopic end of the lifting cylinder 62; the mounting seat 61 is provided with a backing plate 611, the paper pressing component 64 is arranged on the mounting seat 61, the paper pressing component 64 corresponds to the side of the backing plate 611, and the cutting component 65 is arranged on the side of the backing plate 611; the paper pulling assembly 66 is mounted on the frame, the paper pulling assembly 66 corresponds to the discharge direction of the adhesive tape on the side of the backing plate 611, the adhesive tape rotating disc 67 is arranged on the mounting base 61, and the adhesive tape is sent out from the discharge end of the adhesive tape rotating disc 67, passes through the backing plate 611 and then is connected with the paper pulling assembly 66; the paper pressing component 64 is used for pressing the adhesive paper on the backing plate 611, the cutting component 65 is used for cutting the adhesive paper, the paper pulling component 66 is used for clamping the end part of the adhesive paper to realize feeding, and the rotating component 63 is used for clamping the protective tube and rotating.

The rotating assembly 63 comprises a lifting block 631, a rotating motor 632, a synchronous belt assembly 633, a clamping cylinder 634 and a clamping finger 635; the side surface of the lifting block 631 is movably connected to the mounting base 61 through a sliding rail, the rotating motor 632 is mounted on the lifting block 631, the lifting block 631 is hinged to a rotating shaft block 636, and the output end of the rotating motor 632 is connected with the rotating shaft block 636 through a synchronous belt assembly 633; the clamping cylinder 634 is mounted on the rotating shaft block 636, the clamping fingers 635 are arranged at two moving ends of the clamping cylinder 634, arc grooves are formed in the clamping fingers 635, and protective tubes are arranged in the arc grooves; the rotating shaft block 636 is also provided with a sensing piece, the lifting block 631 is provided with a corresponding sensor, and the sensor and the sensing piece control the rotating angle of the rotating shaft block 636.

The paper pressing assembly 64 comprises a paper pressing cylinder 641 and a paper pressing block 642, the paper pressing cylinder 641 is arranged on the mounting seat 61 through a T-shaped block 643, the paper pressing block 642 is arranged at the telescopic end of the paper pressing cylinder 641, the paper pressing block 642 is in a groove shape, and protrusions at two ends of the groove shape are used for pressing the adhesive paper.

The cutting assembly 65 comprises a cutting cylinder 651 and a cutter 652; the cutting blade 652 is installed at the telescopic end of the cutting cylinder 651, and the cutting blade 652 is located at the side of the pad 611.

The paper pulling assembly 66 comprises a paper pulling cylinder 661, a paper clamping cylinder 662 and a paper clamping block 663; the paper pulling cylinder 661 is mounted on the frame through the vertical plate 664, the paper clamping cylinder 662 is mounted at the telescopic end of the paper pulling cylinder 661, and the paper clamping block 663 is mounted at the two movable ends of the paper clamping cylinder 662.

When the paper pasting device 6 works, the adhesive paper is placed in the adhesive paper rotating disc 67, the adhesive paper is arranged on the side of the backing plate 611, the end part of the adhesive paper is clamped by the paper clamping block 663 at first, the adhesive paper is led out through the paper drawing cylinder 661, and the drawn adhesive paper leans against the surface of the protective tube; the paper pressing cylinder 641 drives the paper pressing block 642 to push out after being led out, two ends of the paper pressing block 642 press the adhesive paper, and meanwhile, the cutter 652 cuts off the other end of the sticker; then, the lifting cylinder 62 drives the rotating assembly 63 to descend, the upper end electrode terminal of the fuse tube is clamped by the two clamping fingers 635, the rotating motor 632 rotates to drive the fuse tube to rotate, and the middle part of the fuse tube is wound with gummed paper.

The paper sticking device 6 solves the problem that the action of sticking adhesive paper on the surface of the cylindrical protective tube is difficult, paper sticking is carried out by a rolling sticking method, the protective tube is clamped by clamping fingers 635 and then rotated, so that the sticking paper is coated on the protective tube, and the adhesive sticking process is completed; the adhesive tape is sent out, fixed and cut in the feeding direction, so that the continuous feeding of the adhesive tape is realized, and the adhesive tape sticking efficiency is improved; compared with a mode of pasting glue on release paper, the method for pasting the glue has higher utilization rate of the glue paper, avoids the procedure of stripping the glue paper and improves the efficiency of pasting the glue paper; the paper pressing block 642 in the groove shape reduces the paper pressing area, prevents the adhesive paper from being stuck and improves the adhesive paper feeding efficiency.

As shown in fig. 8, the bending device includes a material fixing assembly 71, a base 72, an extending cylinder 73, a moving block 74, a turning cylinder 75, a rack and pinion set 76 and a bending member 77; the material fixing component 71 is arranged on the fixed disc 24, the material fixing component 71 is used for clamping a fuse tube, the base 72 is fixed on the frame, the moving block 74 is movably connected to the base 72, the stretching cylinder 73 is arranged on the base 72, and the telescopic end of the stretching cylinder 73 is connected with the moving block 74; the moving block 74 is provided with an installation vertical plate 78, the overturning cylinder 75 is arranged on the side of the installation vertical plate 78, the installation vertical plate 78 is further provided with a slide rail, the gear rack group 76 comprises a gear and a rack which are meshed with each other, the rack is movably matched in the slide rail, the bending piece 77 is rotatably connected on the side of the installation vertical plate 78, and the bending piece 77 is fixed with the gear; the bending piece 77 is in a circular shaft shape, two slender circular shafts are arranged at the end part of the bending piece 77, the first circular shaft 771 is arranged at the axis of the end part of the bending piece 77, the second circular shaft 772 is arranged at the eccentric position of the end part of the bending piece 77, a gap is reserved between the first circular shaft 771 and the second circular shaft 772, and the gap is used for an electrode of the fuse tube to pass through; the material fixing assembly 71 comprises a folded plate 711, a limiting finger cylinder 712 and a limiting block 713; the limiting finger cylinder 712 is mounted on the folded plate 711, the limiting block 713 is mounted at two moving ends of the limiting finger cylinder 712, the limiting block 713 protrudes towards the side, a space is reserved above the limiting block 713 for the bending piece 77 to rotate, an arc-shaped notch is formed in one side, opposite to the limiting block 713, of the limiting block 713, and the arc-shaped notch is used for arranging a safety tube electrode.

The bending device when working, spacing finger cylinder 712 drives stopper 713 and is close to each other, make vertical protective tube electrode be located the arc breach, carry on spacingly, then stretch into cylinder 73 extension and shift out movable block 74, make the piece 77 of bending stretch into in the protective tube electrode, first circle axle 771 and second circle axle 772 block the electrode of protective tube, then upset cylinder 75 extension, drive gear rack group 76 work, make the piece 77 of bending rotate one hundred eighty degrees, bend the electrode, then the piece 77 of bending withdraws from the side.

The bending device solves the problems that the bending radian of the protective tube is difficult to control and the protective tube needs to be bent for multiple times; bending is performed by arranging a first circular shaft 771 and a second circular shaft 772, wherein the first circular shaft 771 serves as a rotation center, the second circular shaft 772 serves as a bending component, so that the bending radian is related to the diameter of the first circular shaft 771, and the radian of multiple times of bending is kept uniform; the bending piece 77 is adopted for bending once, so that the bending speed is improved compared with a method of bending for multiple times; the lower end of the bending part is limited by a limiting block 713, so that bending is prevented, and the bending quality is improved.

The vertical fuse tube shown in fig. 9 is processed by a vertical fuse tube sticker forming machine, and the vertical fuse tube sticker forming machine is processed sequentially through the following steps when in work:

feeding: the movable material receiving frame 361 is connected with the discharge end of the braid removing mechanism 32, the movable material receiving frame 361 carries the received protective tubes and places the protective tubes on the fixed material receiving frame 362, then the rotary cylinder 37 rotates the finger cylinder 38, so that the clamping blocks 39 clamp the end parts of the protective tubes to turn over and lift the protective tubes, and feeding is realized;

(II) straightening and cutting: the straightening cylinder 42 drives the straightening column 43 to descend, the protective tube is vertically arranged, the cutting cylinder 52 extends to drive the cutter block 53 and the cutter pressing block 54 to push out, the electrode of the protective tube is pressed through the cutter pressing block 54 at first, then the spring is compressed, the cutter block 53 continuously extends out, the cutter block 53 and the cutter holder 55 realize cutting of the protective tube, the cut waste materials are continuously ejected out through the inclined surface of the cutter block 53 and fall into the blanking slide rail 56 at the blanking hole 552 to realize blanking;

and (III) rubberizing: the gummed paper is placed in the gummed paper turntable 67, the gummed paper is arranged on the side of the backing plate 611, the end part of the gummed paper is clamped by the paper clamping block 663 firstly, the gummed paper is led out through the paper pulling cylinder 661, and the drawn paster leans against the surface of the protective tube; the paper pressing cylinder 641 drives the paper pressing block 642 to push out after being led out, two ends of the paper pressing block 642 press the adhesive paper, and meanwhile, the cutter 652 cuts off the other end of the sticker; then, the lifting cylinder 62 drives the rotating assembly 63 to descend, the upper end electrode terminal of the protective tube is clamped by the two clamping fingers 635, the rotating motor 632 rotates to drive the protective tube to rotate, and the middle part of the protective tube is wound with gummed paper;

(IV) bending: the limiting finger cylinder 712 drives the limiting block 713 to approach each other, so that the vertical fuse electrode is located in the arc-shaped gap for limiting, then the vertical fuse electrode extends into the cylinder 73 to move out the moving block 74, the bending piece 77 extends into the fuse electrode, the first circular shaft 771 and the second circular shaft 772 clamp the electrode of the fuse, then the overturning cylinder 75 extends to drive the gear rack group 76 to work, the bending piece 77 rotates one hundred eighty degrees to bend the electrode, and then the bending piece 77 is withdrawn from the side;

(V) blanking: at the blanking station 206, the driving cylinder 261 of the driving assembly 26 drives the driving tip block 262 to ascend, the driving tip block 262 pushes the ball 253 to expand outwards, so that the two clamping jaws 254 are separated, the clamped fuse tube is released, and the fuse tube falls into a hopper for collection.

Claims

1. A bending device for processing a protective tube is characterized by comprising a material fixing component (71), a base (72), an extending cylinder (73), a moving block (74), a turning cylinder (75), a rack and pinion group (76) and a bending piece (77); the base (72) is fixed on the rack, the moving block (74) is movably connected to the base (72), the stretching cylinder (73) is arranged on the base (72), and the telescopic end of the stretching cylinder (73) is connected with the moving block (74); an installation vertical plate (78) is arranged on the moving block (74), the overturning cylinder (75) is arranged on the side of the installation vertical plate (78), a sliding rail is further arranged on the installation vertical plate (78), and the bending piece (77) is rotatably connected to the side of the installation vertical plate (78); bend piece (77) become the circular shaft form, the tip of bending piece (77) is provided with two long and thin circular shafts, first circular shaft (771) sets up in the axle center department of bending piece (77) tip, second circular shaft (772) sets up the eccentric position at bending piece (77) tip, first circular shaft (771) and second circular shaft (772) between leave the space, the electrode that this space supplied the protective tube passes.

2. The bending device for processing the protective tube according to claim 1, wherein the sizing assembly (71) comprises a folded plate (711), a finger limiting cylinder (712) and a limiting block (713); spacing finger cylinder (712) are installed on folded plate (711), and stopper (713) are installed at the both ends that move of spacing finger cylinder (712), and stopper (713) are outstanding to the side, and the top is left the space and is given bending piece (77) and rotate, the relative one side of stopper (713) be provided with the arc breach.

3. The bending device for machining the fuse tube as claimed in claim 1, wherein the gear rack set (76) comprises a gear and a rack which are meshed with each other, the rack is movably matched in a sliding rail, the bending piece (77) is fixed with the gear, and the rack is connected with the telescopic end of the overturning air cylinder (75).

4. A bending method for a vertical fuse is characterized in that the bending device of claim 1 is used, a limiting finger cylinder (712) drives a limiting block (713) to approach each other, a vertical fuse electrode is located in an arc-shaped notch to be limited, then the limiting finger cylinder extends into a cylinder (73) to extend to move out a moving block (74), a bending piece (77) extends into the fuse electrode, a first circular shaft (771) and a second circular shaft (772) clamp the electrode of the fuse, then a turnover cylinder (75) extends, a driving gear rack group (76) works, the bending piece (77) rotates one hundred eighty degrees, the electrode is bent, and then the bending piece (77) is withdrawn from the side.

5. A vertical fuse sticker forming machine is characterized by comprising a rack (1), and a rotary clamp device (2), a braid disassembling device (3), a straightening device (4), a cutting device (5), a sticker device (6) and a bending device (7) which are arranged on the rack (1); the bending device (7) is according to claim 1.

6. The vertical fuse tube sticker forming machine according to claim 1, wherein the rotary clamp device (2) is used for clamping a fuse tube and rotationally moving the fuse tube, the braid removing device (3) is used for removing the fuse tube from a braid to achieve feeding, the straightening device (4) is used for straightening an end electrode of the fuse tube, the cutting device (5) is used for cutting redundant parts of the electrode, the sticker device (6) is used for pasting gummed paper on the surface of the fuse tube, and the bending device (7) is used for bending the fuse tube electrode.