CN218456028U - Gluing mechanism on gluing machine of chip capacitor - Google Patents

Abstract

The utility model discloses a gluing mechanism on a gluing machine of a paster capacitor in the technical field of capacitor gluing, which comprises a frame, a butt joint cover plate, a cylinder guide block and a limiting block; the frame is a body of the adhesive tape sticking machine; the rear side of the butt joint cover plate is provided with a step-shaped gluing edge, the rear side of the bottom of the gluing edge is an upward-raised inclined plane, and the thickness of the front side of the gluing edge is larger than that of the rear side; butt joint apron bottom has set up a cylinder guide block, two spacing rotating blocks and two board side gag lever posts, can carry out automatic pad pasting to paster electric capacity with high automatic structure, the glued membrane is worn out and is spread conveniently, effectively avoid the glued membrane to glue each other glutinous, and do not need people's manual operation moreover, as long as manual spreading opening, whole book all can be stable spreads, and do not need the hand to stretch into the inside operation of frame, can directly open the butt joint apron, with convenient the spreading of glued membrane, operating space is big, can be more accurate spread the glued membrane.

Description

Gluing mechanism on gluing machine of chip capacitor

Technical Field

The utility model relates to an electric capacity rubberizing technical field especially relates to a mechanism is glued to lid on paster electric capacity's the rubberizing machine.

Background

After the miniature patch capacitor chip is produced, the miniature patch capacitor chip needs to be protected by adhesive tape, so that the inside of the miniature patch capacitor chip is prevented from being damaged. The capacitor chip is generally of a sheet structure, and needs to be subjected to subsequent processing after being glued, and finally the larger sheet capacitor chip is cut into tiny capacitor chip grains.

When this kind of equipment rubberizing, generally need two people with the even expansion of glued membrane, and also useful machine is produced in order to use manpower sparingly at present, but this kind of equipment is all fairly simple, carries out the rubberizing to paster electric capacity in order to can spreading the glued membrane in the frame, and consequently the platform that needs to spread is level and smooth, needs the gap little moreover, avoids electric capacity to drop or the propelling movement process stretches into inside the frame.

At present, a small groove is formed, an adhesive film in a rack is stretched out, the operation of stretching the adhesive film from the rack is very inconvenient due to the fact that the groove is small, the adhesive film is arranged in the rack, the adhesive film is more inconvenient and more tedious than manual adhesive tape sticking when being torn out, the adhesive film is very easy to stick on equipment and is very easy to tear, the adhesive film is difficult to wear out from a winding drum, the operation is complicated, and the machine production is violated to bring convenience and originality.

Based on this, the utility model designs a mechanism is glued to lid on paster electric capacity's the coating machine to solve above-mentioned problem.

Disclosure of Invention

An object of the utility model is to provide a mechanism of gluing on paster electric capacity's rubberizing machine, can be with the structure of high automation, carry out automatic pad pasting to paster electric capacity, the glued membrane is worn out and is spread conveniently, effectively avoid the glued membrane to glue each other glutinous, and need not people manually operation moreover, as long as manual spreading opening, the whole roll all can be stable spreads, and do not need the hand to stretch into frame internal operation, can directly open the butt joint apron, with the convenient spreading of glued membrane, operating space is big, can be more accurate spread the glued membrane.

The utility model discloses a realize like this: the utility model provides a mechanism is glued to lid on paster electric capacity's rubberizing machine, includes:

the device comprises a frame, a butt joint cover plate, a cylinder guide block and a limiting block;

the frame is a body of the adhesive tape sticking machine;

the butt joint cover plate is a flat plate, a step-shaped gluing edge is arranged on the rear side of the butt joint cover plate, the rear side of the bottom of the gluing edge is an upward raised inclined plane, and the thickness of the front side of the gluing edge is larger than that of the rear side;

the bottom of the butt joint cover plate is provided with an air cylinder guide block, two limiting rotating blocks and two plate-side limiting rods;

a flip cylinder is also arranged below the butt joint cover plate, one end of the flip cylinder is connected with the rack, and the other end of the flip cylinder is rotatably connected with the cylinder guide block through a rotating shaft;

the two limiting blocks are fixedly arranged on the rack, the two limiting rotating blocks are respectively arranged on the left side and the right side of the butt joint cover plate, each limiting block is rotatably connected with one limiting rotating block through a rotating shaft, the butt joint cover plate is arranged on the limiting blocks in a turnover mode through the limiting rotating blocks, and the rotating axes of the two limiting rotating blocks are overlapped;

the two plate-side limiting rods are symmetrically arranged on the left side and the right side of the bottom of the butt joint cover plate, a limiting adjusting screw is mounted on each limiting block, the limiting adjusting screw can be locked on the limiting blocks in a stretching and lifting mode through threads, the upper ends of the limiting adjusting screws extend out of the tops of the limiting blocks, and the two plate-side limiting rods can be covered on the two limiting adjusting screws in a one-to-one correspondence mode in a separated mode.

Further, the thickness on rubberizing limit is less than half of butt joint apron thickness, the thickness of the front side on rubberizing limit is greater than the thickness of rear side, the front side thickness on rubberizing limit is no longer than 5mm, the last side on rubberizing limit is no longer than 1mm along thickness, butt joint apron is the rectangle flat board, the angle of lifting up on the inclined plane of rubberizing limit is 45.

Furthermore, the butt joint cover plate is a rectangular flat plate, the rotating axis of the limiting rotating block is parallel to the front side edge of the butt joint cover plate, and the interval between the rotating axis of the limiting rotating block and the front side edge of the butt joint cover plate is not more than 2cm.

Furthermore, the lower end of the plate-side limiting rod is wrapped by a cylindrical buffer sleeve, the top of the limiting adjusting screw rod is provided with a cylindrical buffer rubber sleeve, the lower end of the limiting adjusting screw rod is locked with the limiting block through a nut, and the limiting block and the limiting adjusting screw rod are in transition fit with each other through butt threads.

The utility model has the advantages that: 1. the utility model carries out step-by-step bearing and positioning on four different states of the paster capacitor rubberizing through the raw material frame, the butt joint cover plate, the glue pressing frame and the finished product frame, so that the paster capacitor can be rubberized smoothly, automatic assembly line operation is formed step by step, and the rubberizing automation degree is high;

2. through the positioning of the material blocking rod and the lifting of the raw material frame, the positioning is not influenced, so that the device can position and bear each laminated chip capacitor, the position of the chip capacitor is fixed, the precision of automatic film pasting is high, the chip capacitor is not easy to be pasted askew, the adhesive films are effectively prevented from being mutually laminated and adhered to the chip capacitors, and the adhesive films can be prevented from arching and not adhering during attaching;

3. through the butt joint apron of flip formula, can be convenient turn over tear the glued membrane and spread on moulding frame, moulding rubberizing mechanism and cutting bed, the operation of spreading the glued membrane is simple and easy very much, does not need stretching out in little follow gap, effectively avoids the glued membrane to adhere in other positions of equipment, easy operation, in addition the glued membrane is spread and is accomplished the back, and the butt joint apron lid closes.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

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

fig. 2 is a schematic view of the whole structure of the inside of the frame of the present invention;

FIG. 3 is a schematic view of the internal back structure of the present invention;

FIG. 4 is a schematic view of the bottom structure of the butt-joint cover plate of the present invention;

FIG. 5 is a schematic view of the top structure of the butt-joint cover plate of the present invention;

FIG. 6 is another overall perspective view of the present invention;

FIG. 7 is a schematic view of the structure of the adhesive film cutting device of the present invention;

FIG. 8 is a schematic view of the structure of the glue pressing and sticking mechanism of the present invention;

FIG. 9 is a schematic side view of the adhesive film cutting device of the present invention;

fig. 10 is a schematic view of the cutting slide rail structure of the present invention;

fig. 11 is the structure diagram of the raw material frame of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-cutting film device, 11-cutting table, 111-cutting seam, 12-pressing block, 13-antislip strip, 14-cutting groove, 15-cutting lifting drive, 16-cutting slide rail, 17-blade, 18-blade sliding table, 2-feeding sucker, 21-raw material frame, 211-striker rod, 212-raw material lifting motor, 22-butt cover plate, 221-upper adhesive tape, 222-flip cylinder, 223-limiting block, 224-plate side limiting rod, 225-limiting adjusting screw, 226-cylinder guide block, 227-limiting rotating block, 23-feeding lifting cylinder, 24-feeding translation guide rail, 25-raw material bottom plate, 3-discharging sucker, 31-pressing frame, 32-finished product frame, 33-discharging lifting cylinder, 34-discharging translation guide rail, 35-discharging lifting motor, 36-lifting slide rail, 4-pressing adhesive mechanism, 41-adhesive-adhering plate, 42-pressing roller, 43-pressing adhesive cylinder, 44-pressing adhesive bracket, 5-winding film winding drum, 51-winding drum, 52-pressing drum, 52-tensioning roller, and 6-total switch.

Detailed Description

Referring to fig. 1 to 11, the present invention provides a technical solution: the utility model provides a mechanism is glued to lid on paster electric capacity's rubberizing machine, includes: the frame 6, the butt joint cover plate 22, the cylinder guide block 226 and the limiting block 223;

the frame 6 is a body of the adhesive tape sticking machine;

the butt joint cover plate 22 is a flat plate, a step-shaped gluing edge 221 is arranged on the rear side of the butt joint cover plate 22, the rear side of the bottom of the gluing edge 221 is an upward-raised inclined surface, and the thickness of the front side of the gluing edge 221 is larger than that of the rear side;

the bottom of the butt joint cover plate 22 is provided with a cylinder guide block 226, two limit rotating blocks 227 and two plate side limit rods 224;

a flip cylinder 222 is further installed below the butt-joint cover plate 22, one end of the flip cylinder 222 is connected with the frame 6, and the other end of the flip cylinder 222 is rotatably connected with a cylinder guide block 226 through a rotating shaft;

two limiting blocks 223 are provided, the two limiting blocks 223 are fixedly mounted on the frame 6, the two limiting rotating blocks 227 are respectively arranged on the left side and the right side of the butt joint cover plate 22, each limiting block 223 is rotatably connected with one limiting rotating block 227 through a rotating shaft, the butt joint cover plate 22 can be mounted on the limiting blocks 223 through the limiting rotating blocks 227 in a turnover mode, and the rotating axes of the two limiting rotating blocks 227 are overlapped;

the two plate-side limiting rods 224 are symmetrically arranged at the left side and the right side of the bottom of the butt joint cover plate 22, each limiting block 223 is provided with a limiting adjusting screw 225, the limiting adjusting screws 225 can be locked on the limiting blocks 223 in a lifting manner through threads, the upper ends of the limiting adjusting screws 225 extend out of the tops of the limiting blocks 223, and the two plate-side limiting rods 224 can be correspondingly covered on the two limiting adjusting screws 225 in a separated one-to-one manner;

the thickness of rubberizing limit 221 is less than half of butt joint apron 22 thickness, the thickness of the front side of rubberizing limit 221 is greater than the thickness of rear side, the front side thickness of rubberizing limit 221 is no longer than 5mm, the last side of rubberizing limit 221 is along thickness no longer than 1mm, butt joint apron 22 is the rectangle flat board, the upward raise angle that raises the inclined plane of rubberizing limit 221 is 45.

The butt joint cover plate 22 is a rectangular flat plate, the rotation axis of the limiting rotation block 227 is parallel to the front side edge of the butt joint cover plate 22, and the interval between the rotation axis of the limiting rotation block 227 and the front side edge of the butt joint cover plate 22 is not more than 2cm.

The lower end of the plate-side limiting rod 224 is wrapped by a cylindrical buffer sleeve, the top of the limiting adjusting screw 225 is provided with a cylindrical buffer rubber sleeve, the lower end of the limiting adjusting screw 225 is locked with the limiting block 223 through a nut, and the butt joint threads of the limiting block 223 and the limiting adjusting screw 225 are transition fit threads.

And the rubberizing equipment of paster electric capacity includes: the device comprises a cutting glue film device 1, a feeding sucker 2, a discharging sucker 3, a glue pressing and sticking mechanism 4, a gluing reel 51, a film winding reel 5 and a rack 6;

the frame 6 is provided with a flat raw material frame 21, a butt joint cover plate 22, a glue pressing frame 31 and a finished product frame 32 from front to back in sequence, and the raw material frame 21, the butt joint cover plate 22, the glue pressing frame 31 and the finished product frame 32 are all horizontally arranged; the raw material frame 21 and the finished product frame 32 can be vertically erected on the machine frame 6;

the feeding sucker 2 and the discharging sucker 3 are both clamps with vacuum suckers arranged at the bottoms, the feeding sucker 2 and the discharging sucker 3 are both independently erected on the frame 6, the feeding sucker 2 can move up and down to translate between the raw material frame 21 and the butt joint cover plate 22, and the discharging sucker 3 can move up and down to translate between the rubber pressing frame 31 and the finished product frame 32;

the adhesive pressing and sticking mechanism 4 and the adhesive film cutting device 1 are arranged between the butt cover plate 22 and the adhesive pressing frame 31, and the adhesive pressing and sticking mechanism 4 is arranged at the front end of the adhesive film cutting device 1;

the glue pressing and sticking mechanism 4 comprises a glue sticking plate 41 and a glue pressing roller 42, and the glue pressing roller 42 can be lifted and loosened to be tightly pressed right above the glue sticking plate 41;

the adhesive film cutting device 1 comprises a cutting table 11, a pressing block 12, a cutting lifting drive 15 and a blade 17, wherein the blade 17 is horizontally and transversely arranged on the cutting table 11 in a sliding manner, and the pressing block 12 can be lifted and loosened through the cutting lifting drive 15 and is tightly pressed on the cutting table 11;

the adhesive tape pasting plate 41 is connected to the rear end of the butt joint cover plate 22, the adhesive tape pasting plate 41 is seamlessly connected to the front end of the cutting table 11, the cutting table 11 is connected to the rear end of the adhesive pressing frame 31, and the adhesive tape pasting plate 41, the butt joint cover plate 22, the cutting table 11 and the adhesive pressing frame 31 are on the same horizontal plane;

the gluing winding drum 51 and the film winding drum 5 are both arranged inside the frame 6, the gluing winding drum 51 and the film winding drum 5 synchronously rotate, and a PLC (programmable logic controller) is arranged in the frame 6;

cutting glued membrane device 1, material loading sucking disc 2, the sucking disc of unloading 3, moulding rubberizing mechanism 4, rubberizing reel 51 and wind membrane reel 5 and all be connected with the PLC controller, can be with high automatic structure, carry out automatic pad pasting to paster electric capacity, the glued membrane is worn out and is spread conveniently, effectively avoid the glued membrane to stick each other, and do not need people manual operation, can accomplish the glued membrane by oneself and spread, and along the gap between the paster electric capacity, the operation of automatic orderly cutting glued membrane, the location of each paster electric capacity is more accurate simultaneously, and the cutting is to press the paster electric capacity stably, effectively avoid the slip of blade to cut bad paster electric capacity, more conveniently realized automatic rubberizing to paster electric capacity, effectively avoid paster electric capacity to be cut bad.

The gluing device comprises a gluing plate 41, a gluing roller 42, a gluing cylinder 43, a gluing support 44, a bearing, a gluing roller 42 and a butt cover plate 22, wherein the gluing plate 41 is a horizontal flat plate, the gluing roller 42 is a rubber round roller, the gluing cylinder 43 is fixedly erected above the gluing plate 41, the gluing cylinder 43 is vertically telescopic, the lower end of the gluing cylinder 43 is provided with the gluing support 44, two ends of the gluing roller 42 are horizontally and rotatably arranged below the gluing support 44 through the bearing, the gluing roller 42 is horizontally arranged, and the rotating axis of the gluing roller 42 is parallel to the rear side edge of the butt cover plate 22;

the desired gap width can be freely adjusted through the connecting gap between the rubberizing plates 41 and the butt joint frame 22, the position of the rubberizing plates 41 can be adjusted through the position locked by bolts, or the mounting position of the butt joint frame 22 can be adjusted, the range of the gap between the rubberizing plates 41 and the butt joint frame 22 is 0.2mm-3.5mm, and the gap pressure of the pressing time can be precisely controlled;

the connecting gap between the cutting table 11 and the rubber pressing frame 31 is not more than 1mm, and the rotation axis of the rubber pressing roller 42 is vertical to the advancing direction of the sheet-shaped chip capacitor on the same horizontal plane, so that a rubber film can be stably and tightly attached to the chip capacitor;

the raw material frame 21 is arranged at the front end of the frame 6, a raw material lifting motor 212 is installed at the bottom of the raw material frame 21, the raw material lifting motor 212 is stably erected inside the frame 6, a raw material base plate 25 is arranged below the raw material frame 21, the raw material base plate 25 is horizontally and stably erected on the frame 6, the raw material frame 21 is horizontally lifted above the raw material base plate 25 through the raw material lifting motor 212, a material blocking rod 211 is vertically arranged on the side edge of the raw material base plate 25, the material blocking rod 211 is a vertical long rod, a kidney-shaped hole is formed in the side edge of the raw material base plate 25, the material blocking rod 211 can be stably locked in the kidney-shaped hole of the raw material base plate 25 through bolts in a horizontally adjustable position mode, the material blocking rod 211 vertically extends out of the raw material frame 21, and the raw material frame 21 is perpendicular to the plane where the raw material frame 21 and the raw material base plate 25 are located;

a feeding lifting cylinder 23 is mounted at the top of the feeding sucker 2, the telescopic end of the feeding lifting cylinder 23 is vertically arranged, a feeding translation guide rail 24 is horizontally arranged on the rack 6, the feeding translation guide rail 24 is horizontally erected above the feeding sucker 2, the feeding translation guide rail 24 extends from the front side edge of the raw material rack 21 to the rear side edge of the butt joint cover plate 22, the fixed end of the feeding lifting cylinder 23 is mounted on the feeding translation guide rail 24 in a sliding manner, the feeding lifting cylinder 23 moves horizontally on the feeding translation guide rail 24 through a motor, and can continuously send the temporarily stored chip capacitors to the rear end for film pasting, so that production line type film pasting can be continuously implemented;

the butt joint cover plate 22 is a rectangular flat plate, the rear side of the butt joint cover plate 22 is provided with a step-shaped gluing edge 221, the thickness of the gluing edge 221 is smaller than half of the thickness of the butt joint cover plate 22, the rear side of the bottom of the gluing edge 221 is an upward raised inclined surface, the thickness of the front side of the gluing edge 221 is larger than that of the rear side, the thickness of the front side of the gluing edge 221 is not more than 5mm, and the thickness of the last side edge of the gluing edge 221 is not more than 1mm;

the bottom of the butt joint frame 22 is provided with an air cylinder guide block 226, two limiting rotating blocks 227 and two plate-side limiting rods 224, the left and right sides below the butt joint frame 22 are respectively and fixedly provided with one limiting rotating block 227, the rack 6 is provided with two limiting blocks 223, the two limiting blocks 223 are positioned below the butt joint frame 22, one limiting rotating block 227 is rotatably connected with one limiting block 223 through a rotating shaft, the rotating axes of the two limiting rotating blocks 227 are overlapped, the rotating axis of the limiting rotating block 227 is parallel to the front side edge of the butt joint frame 22, and the butt joint frame 22 is rotatably installed on the limiting block 223 through the limiting rotating block 227;

a flip cylinder 222 is further installed below the docking frame 22, one end of the flip cylinder 222 is connected with the frame 6, and the other end of the flip cylinder 222 is rotatably connected with a cylinder guide block 226 through a rotating shaft with a fixed position;

the two plate-side limiting rods 224 are symmetrically arranged on the left side and the right side of the bottom of the butt joint cover plate 22, the lower end of the plate-side limiting rod 224 is wrapped by a cylindrical buffer sleeve, each limiting block 223 is provided with a limiting adjusting screw 225, the limiting adjusting screws 225 can be locked on the limiting blocks 223 in a stretching and lifting mode through threads, the upper ends of the limiting adjusting screws 225 extend out of the tops of the limiting blocks 223, the tops of the limiting adjusting screws 225 are provided with cylindrical buffer rubber sleeves, the two plate-side limiting rods 224 can be correspondingly covered on the two limiting adjusting screws 225 in a separating mode respectively, the butt joint cover plate 22 can be opened or covered on the limiting blocks 223 through a limiting rotating block 227, the back side of the butt joint cover plate 22 is lifted when the butt joint cover plate is opened, the butt joint cover plate 22 can be opened in a turning mode to place and press down the butt joint cover plate 22, the glue film is sealed, the butt joint cover plate 22 can be locked through a flip cylinder 222, the equipment can be kept stable and cannot shake when the equipment runs, and the equipment can be loosened and cannot run smoothly after a conventional operation time;

the cutting glue film device 1 comprises a cutting table 11, a pressing block 12, an anti-slip strip 13, a cutting lifting drive 15, a cutting slide rail 16, a blade 17 and a blade sliding table 18;

the cutting slide rail 16 is horizontally and fixedly arranged on the rack 6 along the left-right direction, the cutting slide rail 16 is positioned under the cutting table 11, the cutting table 11 is a flat plate which is horizontally erected, the cutting table 11 is tightly connected between the adhesive tape pasting plate 41 and the adhesive tape pressing frame 31, a cutting slit 111 is formed in the cutting table 11, the cutting slit 111 is formed along the left-right direction of the cutting table 11, the width of the cutting slit 111 in the front-back direction is not more than 5mm, the cutting slide rail 16 and the cutting slit 111 are in the same vertical plane, the cutting slide rail 16 and the cutting slit 111 are perpendicular to the advancing direction of the adhesive tape on the same horizontal plane, the blade sliding table 18 is horizontally and slidably arranged on the cutting slide rail 16 through an air cylinder, the blade 17 is locked on the blade sliding table 18 through a bolt, and the top of the blade 17 is exposed above the cutting table 11 through the cutting slit 111;

the cutting lifting drive 15 is stably erected right above the cutting table 11, the pressing block 12 is connected to a telescopic end of the cutting lifting drive 15, the cutting lifting drive 15 drives the pressing block 12 to lift above the cutting table 11, the bottom of the pressing block 12 is kept horizontal, a cutting groove 14 is transversely formed in the bottom of the pressing block 12, the cutting groove 14 and the cutting slit 111 are in the same vertical plane, the front width and the rear width of the cutting groove 14 and the front width and the rear width of the cutting slit 111 are the same, two anti-slip strips 13 are further arranged at the bottom of the pressing block 12, the two anti-slip strips 13 are distributed on the front side and the rear side of the cutting groove 14, the anti-slip strips 13 are rubber strips, the edges of the anti-slip strips 13 and the cutting groove 14 are parallel, the height of the blade 17 extending out of the cutting table 11 is smaller than the height of the cutting groove 14, accurate cutting can be performed on a glue film between two chip capacitors, if the anti-slip strips 13 cannot press the chip capacitors, the glue film can be pressed, neat cutting can be performed, and the cutting of the blade 17 can be prevented from sliding during cutting even if the transverse cutting force of the cutting blade 17 cannot bring the transverse cutting force, the glue film, the cutting blade can be prevented from being damaged;

a discharging translation guide rail 34 is horizontally erected on the frame 6, a discharging lifting cylinder 33 is installed at the top of the discharging sucker 3, the discharging lifting cylinder 33 vertically extends and retracts, the discharging sucker 3 is installed at the extending end of the discharging lifting cylinder 33, and the fixed end of the discharging lifting cylinder 33 is installed in the discharging translation guide rail 34;

the finished product frame 32 is mounted on a lifting slide rail 36, the lifting slide rail 36 is mounted in the rack 6, the lifting slide rail 36 is further provided with a discharging lifting motor 35, and the discharging lifting motor 35 is used for driving the finished product frame 32 to ascend and descend, so that the paster capacitor after rubberizing is convenient to collect;

a plurality of tensioning rollers 52 are further arranged between the gluing roller 51 and the film winding roller 5, the axes of the tensioning rollers 52 are all horizontally arranged, the tensioning rollers 52 are all rubber rollers, and a glue film between the gluing roller 51 and the film winding roller 5 is tightened through the tensioning rollers 52, so that the glue film and a protective layer are conveniently separated, and the glue film and the protective layer are all tightened to be conveyed along respective paths.

In a specific embodiment of the present invention:

the embodiment of the utility model provides a cover gluey mechanism on rubberizing machine through providing a paster electric capacity, the utility model provides a technical problem be: 1. at present, the paster capacitor is glued manually, the speed is low, the efficiency is low, the glue film is originally a winding drum, one side of the glue film is smooth and non-stick, the other side of the glue film is provided with a glue adhesion surface, but a protective layer without glue is adhered to the glue adhesion surface, the protective layer on the glue film needs to be torn when the paster capacitor is glued, at the moment, the glue film needs to be torn by both hands, but the paster capacitor cannot be fixed, if the paster capacitor is fixed, the glue film easily generates static electricity because of thinking the protective layer, if the paster capacitor cannot be kept pressed and spread all the time, the glue films are mutually adhered, the torn glue film is scrapped, and the operation is very troublesome; 2. after the adhesive film is tightly attached to the chip capacitor, the adhesive film needs to be cut and needs to be cut orderly, the adhesive film is prevented from attaching the other surface of the chip capacitor, the adhesive film can only be adhered to cover one surface of the chip capacitor, and the cutting is very difficult to cut orderly, so that the operation can be finished by at least two skilled workers, time and labor are wasted, the effect is not good, and once the adhesive film is deflected, the chip capacitor is easily cut to be damaged, and the chip capacitor is damaged; 3. in some existing semi-automatic devices, when a chip capacitor is fed, a worker needs to stare at the device all the time, the positioning of the chip capacitor is difficult to align, the chip capacitor is reduced along with production, a bearing raw material frame 21 needs to continuously rise, the chip capacitor is easy to slide, so that a glue film is dislocated when being attached, and the chip capacitor is easy to slide off, so that the chip capacitor sliding off a machine table in the whole piece is broken; 4. the rubberizing platform of conventional equipment rubberizing requires high stability, therefore only open on the rubberizing platform, be used for stretching out the glued membrane and cover the laminating, such hole can not be too big, the width generally can not exceed 2mm, it is very difficult that the hole of width passes the glued membrane like this, only the glued membrane can stretch out, and the protective layer needs to wind on another winding film reel 5, in order to avoid taking away the protective layer during the cutting, the protective layer of glued membrane also can not stretch out at the platform of rubberizing, and the glued membrane has viscidity and can adhere in the gap when stretching out, bring very big difficulty for the glued membrane to spread, once this gap is too big, the glued membrane goes out to glue unstably, the glued membrane easily sticks askew, and once the gap exceeds 2mm once, the thickness of paster electric capacity also only has 2-3mm, and the paster electric capacity has toughness, stretch into this gap of rubberizing very easily when pressing the glued membrane, therefore this gap generally controls at about 0.5mm, the advancing of this gap just can not hinder the paster electric capacity totally, reduce the fault rate of production, but the paster electric capacity normally advances, either can's normal advancing, it is very difficult to install the paster to pass through, it is very difficult to install the two kinds of rubberizing platform or the easy to appear just to go into, the paster 51, it is difficult to go into very easily.

The technical problem that utility model solved is: carry out the rubberizing to the paster electric capacity through the automation of this device to the glued membrane is spread conveniently, and paster electric capacity location is accurate, and degree of automation is high.

The realized technical effects are as follows: 1. the utility model carries out step-by-step bearing and positioning on four different states of the paster capacitor rubberizing through the raw material frame 21, the butt joint cover plate 22, the glue pressing frame 31 and the finished product frame 32, so that the paster capacitor can be rubberized smoothly, automatic assembly line operation is formed step by step, and the rubberizing automation degree is high;

2. through the positioning of the material blocking rod 211 and the lifting of the raw material frame 21, the positioning is not influenced, so that the device can position and bear each laminated chip capacitor, the position of the chip capacitor is fixed, the precision of automatic film lamination is high, the film lamination is not easy to incline, and the adhesive films are effectively prevented from being laminated and adhered to the chip capacitors;

3. butt joint apron 22 through the flip formula, can be convenient turn over pull out the glued membrane and spread on moulding frame 31, moulding rubberizing mechanism 4 and cutting bed 11, the operation of spreading the glued membrane is simple very much, need not stretch out the spreading from the gap with the glued membrane a bit, can directly open the butt joint apron 22 that blocks the glued membrane, effectively avoid glued membrane adhesion in other positions of equipment, after the glued membrane is spreaded and is accomplished, butt joint apron 22 lid closes, moreover, the butt joint apron 22 of this device has the automatic function of opening and closing with automatic upset lid, make it can operate more portably, and can carry out the taut of continuation through flip cylinder 222 to butt joint apron 22, make its position and angle remain stable, and can not appear shaking and rocking when equipment operation, and through stopper 223, the cooperation of gag lever post 224 and spacing adjusting screw 225, can adjust the final locking angle of butt joint apron 22, make its operation and adjustment that can stabilize, it is more convenient to use, it is also more convenient to adjust, equipment operation is more stable.

The embodiment of the utility model provides an in technical scheme for solving above-mentioned problem, the general thinking is as follows:

for better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.

When the utility model is manufactured and installed, the frame 6 is manufactured firstly, the frame 6 is a frame structure welded by steel square pipes, and the frame 6 is additionally provided with a sheet metal cabinet door after the internal equipment is completely installed;

a PLC (programmable logic controller) is required to be arranged in the rack 6, the PLC is a conventional device, a raw material bottom plate 25 is required to be stably erected on one side of the front end of the rack 6, the raw material bottom plate 25 is rectangular, the raw material bottom plate 25 is fixed on a platform at the top of the rack 6, all side lengths of the raw material bottom plate 25 are slightly larger than all side lengths of a chip capacitor, and in order to be suitable for various chip capacitors of different models, the size of the raw material bottom plate 25 is required to be larger than the sizes of all the chip capacitors, namely, due to adaptability, the conventional chip capacitor adhesive equipment cannot accurately stably support the chip capacitors, waist-shaped holes are formed in all sides of the raw material bottom plate 25, vertical material blocking rods 211 are arranged in the waist-shaped holes through bolts, the material blocking rods 211 are required to be perpendicular to the plane of the raw material bottom plate 25 and horizontally arranged, the material blocking rods 211 can horizontally slide and adjust in the waist-shaped holes of the raw material bottom plate 25 through the bolts, and the left side and the rear side of the raw material bottom plate 25 are provided with the material blocking rods 211, so that positioning can be realized, the convenience and the positioning is stable, and the positioning can be suitable for the chip capacitors of various different sizes;

the raw material lifting motor 212 is additionally arranged at the bottom of the raw material bottom plate 25, a vertical guide rail is arranged on the inner side of the raw material bottom plate 25, the raw material frame 21 is arranged above the raw material bottom plate 25, the raw material frame 21 is a square flat plate, the raw material frame 21 is driven by the raw material lifting motor 212 and is arranged in the guide rail on the inner side of the raw material bottom plate 25, so that the raw material frame 21 can be driven by the raw material lifting motor 212 to vertically lift above the raw material bottom plate 25, the raw material frame 21 is always kept horizontal, the material blocking rod 211 extends above the raw material frame 21 to block raw materials, and the raw material frame 21 only needs to be provided with vertical baffles on the front side and the right side;

the rear side of the raw material frame 21 is provided with a butt joint cover plate 22, a feeding translation guide rail 24 is horizontally erected above the raw material frame 21 and the butt joint cover plate 22, the front and rear directions of the feeding translation guide rail 24 extend to cover the ranges of the raw material frame 21 and the butt joint cover plate 22, the fixed end of a feeding lifting cylinder 23 is arranged in the feeding translation guide rail 24 in a sliding mode through a dovetail groove, the telescopic end of the feeding lifting cylinder 23 is vertically and downwards arranged, a feeding sucker 22 is arranged on the telescopic end of the feeding lifting cylinder 23, the feeding sucker 22 is horizontally arranged, the feeding sucker 22 is a flat plate, the bottom of the feeding sucker 22 is provided with a sucker hole, and the sucker hole of the feeding sucker 22 is connected with an external negative pressure pipeline and is controlled by a PLC (programmable logic controller);

then, a butt joint cover plate 22 of the flip cover needs to be manufactured, the butt joint cover plate 22 is a flat plate, a step-shaped upper adhesive edge 221 is arranged on the rear side edge of the butt joint cover plate 22, the thickness of the upper adhesive edge 221 is less than half of the normal thickness of the butt joint cover plate 22, therefore, the upper adhesive edge 221 and the butt joint cover plate 22 are step-shaped, the rear side edge of the upper adhesive edge 221 is inclined upwards to form an inclined plane which is raised upwards, the rear side edge of the upper adhesive edge 221 is flush with the adhesive plate 41, two limit blocks 223 need to be manufactured, the limit blocks 223 are arranged on the left side and the right side of the butt joint cover plate 22, the two limit blocks 223 are symmetrically arranged below the butt joint cover plate 22, the limit blocks 223 are fixed on the rack 6, then the two limit rotating blocks 227 are arranged at the bottom of the butt joint cover plate 22 to ensure that the axes of the two limit rotating blocks 227 are on the same straight line, the axes of the limit rotating blocks 227 are arranged on the front side of the butt joint cover plate 22, the axis of the limit rotating blocks 227 is parallel to the front side edge of the butt joint cover plate 22, then the limit rotating blocks 227 are rotatably arranged in the limit rotating blocks 227, and the limit rotating blocks 227 fixed in the limit blocks 223, and the limit cover plate 22 is opened or closed by the limit rotating blocks 223;

an air cylinder guide block 226 is installed at the bottom of the butt joint cover plate 22, the air cylinder guide block 226 is rotatably connected with the telescopic end of the flip cover air cylinder 222 through a conventional bolt, the projection of the air cylinder guide block 226 and the rotating shaft of the flip cover air cylinder 222 on the butt joint cover plate 22 is parallel to the axis of the limit rotating block 227, only the air cylinder guide block 226 is arranged close to the rear end of the butt joint cover plate 22, and the fixed end of the flip cover air cylinder 222 is stably erected on the machine frame 6;

two plate-side limiting rods 224 are further required to be fixed at the bottom of the butt joint cover plate 22, the plate-side limiting rods 224 are stainless steel rods, cylindrical rubber buffer sleeves are wrapped outside and at the bottom of the butt joint cover plate, a limiting adjusting screw 225 is further required to be mounted on each limiting block 223, the top of each limiting adjusting screw 225 extends above the corresponding limiting block 223, the limiting adjusting screw 225 is lifted on the corresponding limiting block 223 through threads and is locked through threads and an external nut when the limiting adjusting screw 225 is not moved, the rubber buffer sleeves are further sleeved on the tops of the limiting adjusting screws 225, when the butt joint cover plate 22 is covered, each limiting adjusting screw 225 is abutted against one plate-side limiting rod 224 in a butt joint mode to form impact limiting, and limiting is performed through the lower end of the plate-side limiting rod 224 and the limiting adjusting screw 225; the flip cylinder 222 is used for driving the butt joint cover plate 22 to flip or cover;

a gluing reel 51, a film winding reel 5 and a plurality of tensioning rollers 52 are arranged in a rack 6, the gluing reel 51, the film winding reel 5 and the tensioning rollers 52 are all rotating rollers, the gluing reel 51 and the film winding reel 5 are both independently driven by motors, the tensioning rollers 52 are driven rollers, the tensioning rollers 52 are all rubber rollers, the gluing reel 51 is a reel raw material of a glue film, a glue layer of the glue film needs to be torn open, the glue film needs to be stretched out from a gap between a gluing edge 221 of a butt joint cover plate 22 and a gluing plate 41, a protective layer of the glue film needs to be wound and recovered through the film winding reel 5, the torn protective layer and the tightening of the glue film need to be tightened by the tensioning rollers 52, the glue film can be stretched straight and continuously upwards to extend out of the butt joint cover plate 22, and the protective layer of the glue film needs to be tightened by the tensioning rollers 52 and then wound around the film winding reel 5;

and the glue film between the gluing winding drum 51 and the film winding drum 5 stretches out and is arranged on the tops of the rubberizing plate 41 and the cutting table 11, and a PLC (programmable logic controller) is arranged in the machine frame 6.

Then, a glue pressing and sticking mechanism 4 is arranged on the rear side of the butt joint cover plate 22, the structure of the glue pressing and sticking mechanism 4 is simple, the extending glue film is pressed, stuck and covered on the surface mount capacitor, the glue pressing and sticking mechanism 4 comprises a glue sticking plate 41, the glue sticking plate 41 is a fixing plate which is horizontally arranged, the glue sticking plate 41 is fixedly arranged on the rack 6, and the glue sticking plate 41 is required to be kept horizontal on the same plane with the butt joint cover plate 2 in a covering state;

set up moulding cylinder 43 above the adhesive-coated sheet 41, moulding cylinder 43's stiff end stable frame is established in frame 6, moulding cylinder 43's the vertical flexible of flexible end, and moulding support 44 has been locked to moulding cylinder 43's lower extreme, moulding support 44 is rectangular shape structure, moulding support 44 level erects directly over adhesive-coated sheet 4, and moulding support 44 passes through the vertical lift of moulding cylinder 43 drive, moulding support 44 both sides are through bearing installation moulding roller 42, moulding roller 42 can rotate along the horizontally axis, moulding roller 42 position keeps fixed with moulding support 44.

A cutting adhesive film device 1 is also required to be installed, and the cutting adhesive film device 1 is arranged at the rear end of the adhesive pressing device 4; the adhesive film cutting device 1 comprises a horizontally-arranged cutting table 11 and a cutting table 11 flat plate, wherein the cutting table 11 needs to be flush with the adhesive tape pasting plate 41 and needs to be in seamless connection, a cutting slit 111 is formed in the middle of the cutting table 11, the cutting slit 111 is formed in the left and right direction, and the cutting slit 111 needs to be perpendicular to the advancing direction of an adhesive film and a chip capacitor; the cutting table 11 is fixed on the frame 6, and a cutting slide rail 16 is arranged below the cutting table 11; the cutting slide rail 16 also needs to be fixed in the rack 6, a blade sliding table 18 is arranged on the cutting slide rail 16 in a sliding manner through a dovetail groove, the sliding direction of the blade sliding table 18 also transversely slides along the left-right direction, a vertical blade 17 is locked on the blade sliding table 18 through a bolt, the blade 17 slides on the cutting slide rail 16 along with the blade sliding table 18, the cutting slide rail 16 is positioned under the cutting seam 111 and is parallel to each other in the same vertical plane, and thus the blade 17 transversely slides and cuts in the cutting seam 111;

a cutting lifting drive 15 is required to be erected at the top of the cutting table 11, the top of the cutting lifting drive 15 is fixed on the rack 6, the bottom of the cutting lifting drive 15 is a telescopic end, the cutting lifting drive 15 is a vertically telescopic cylinder, a pressing block 12 is installed at the telescopic end at the bottom of the cutting lifting drive 15, 12 pressing blocks are horizontally arranged in a long strip-shaped block structure, the rest cutting seams 111 of the pressing block 12 are parallel in the same vertical plane, the pressing block 12 is positioned right above the cutting seams 111, a cutting groove 14 is formed at the bottom of the pressing block 12, a long strip-shaped groove 14 of the cutting groove is formed, the cutting groove 14 is parallel to the cutting seams 111, anti-skid strips 13 are fixedly arranged on the front side and the rear side of the cutting groove 14 respectively, and the anti-skid strips 13 are also parallel to the opening edges of the cutting groove 14;

a glue pressing frame 31 is erected at the rear end of the cutting table 11, the glue pressing frame 31 is fixed on the rack 6, the glue pressing frame 31 needs to be closely connected with the cutting table 11 on the same height plane, a finished product frame 32 is erected at the rear end of the glue pressing frame 31, a vertical discharging translation guide rail 36 needs to be installed at the rearmost end of the rack 6, the finished product frame 32 is vertically arranged on the discharging translation guide rail 36 in a sliding mode, and the finished product frame 32 is driven by a discharging lifting motor 36 to lift along the discharging translation guide rail 36;

horizontal installation translation guide rail 34 of unloading above moulding frame 31 and finished product frame 32, translation guide rail 34 of unloading is improved level and is slided and establish the lift cylinder 33 of unloading, the flexible end of lift cylinder 33 bottom of unloading erects the sucking disc 3 of unloading, the sucking disc 3 of unloading is the same with material loading sucking disc 2 structure, only the sucking disc 3 of unloading is used for absorbing the finished product paster electric capacity that the pad pasting was accomplished, the sucking disc 3 of unloading is through solitary motor at translation guide rail 34 upper level drive of unloading, material loading sucking disc 2 is also through solitary motor drive horizontal migration on material loading translation guide rail 24. Thus the installation of the device is completed.

The cutting glue film device 1, the feeding sucker 2, the discharging sucker 3, the glue pressing and sticking mechanism 4, the gluing reel 51 and the film winding reel 5 are all connected with a PLC (programmable logic controller), and the control mode belongs to conventional connection and control in the field.

When the utility model is used, the surface mount capacitors are required to be flatly placed on the raw material rack 21, dozens of pieces can be stacked, the raw material rack 21 is lowered to the lowest position through the raw material lifting motor 212 so as to accommodate more surface mount capacitors, then the PLC controller starting equipment in the frame 6 is controlled, and the main switch 61 is required to be arranged in the frame 6 so as to facilitate emergency use;

then, an adhesive film reel is required to be arranged on the upper adhesive reel 51, then, a more reel-shaped adhesive film is unfolded, the adhesive film reel is the same as a transparent adhesive, one side of the adhesive film reel has an adhesive surface and the other side is smooth, a protective layer is covered on the adhesive surface of the adhesive film, the protective layer is separated from the adhesive film, the flip cover plate 22 is controlled to be lifted by the flip cylinder 222, the adhesive surface of the adhesive film extends upwards and spreads towards the rear side of the butt cover plate 22, the protective layer is wound around the adhesive film reel to form a barrel for recycling, the adhesive film and the protective layer are tensioned through the tensioning rollers 52, the tensioning rollers 52 are required to be tensioned at all turning and scattering points, the tensioning rollers 52 cannot be in contact with the adhesive surface of the adhesive film, the flip cylinder 222 retracts and covers the butt cover plate 22, the butt cover plate 22 is horizontally erected at the top of the limiting block 223 and cannot be impacted and shaken, the butt cover plate 22 is tensioned through the flip cylinder 222, the abutting cover plate 22 is effectively prevented from being impacted and shaken when the device runs, the device, stable running, and the side can be supported by the matching of the limiting rod 224 and the limiting adjusting screw 225, so as to avoid the pulling height of the butt cover plate 22 being too low;

after the chip capacitors on the raw material frame 21 are sucked by the feeding sucker 2, the feeding sucker 2 rises under the action of the feeding lifting cylinder 23, the feeding lifting cylinder 23 is driven by the rodless cylinder to slide towards the rear side on the feeding translation guide rail 24, the feeding lifting cylinder 23 stops above the butt joint cover plate 22, the feeding lifting cylinder 23 is started again to extend, the chip capacitors sucked by the feeding sucker 2 are horizontally placed on the butt joint cover plate 22, positioning is required to be accurate, and the chip capacitors on the raw material frame 21 are positioned and clamped through the material blocking rod 211, so that the chip capacitors with different sizes can be applied;

after the chip capacitor on the butt joint cover plate 22 is stably arranged, the front end of the chip capacitor needs to be aligned and adhered to a glue film extending out of the rear side of the butt joint cover plate 22 by the feeding sucker 2, the rear side edge of the chip capacitor is adhered to the glue film, the glue film is tightly pressed on the top of the chip capacitor at the moment, the bottom of the chip capacitor is adhered to the glue film, the chip capacitor is continuously rotated and moved backwards by the glue film 42 on the glue plate 41, at the moment, when the first chip capacitor moves backwards, the glue film completely covers and adheres the bottom of the chip capacitor, the glue film is exposed out of the rear side of the passed chip capacitor, the feeding sucker 2 absorbs the second chip capacitor again, the second chip capacitor is adhered to the glue film exposed in a section width after being aligned, and the gap between the second chip capacitor and the first chip capacitor does not exceed the width of the cutting groove 14, so that the chip capacitor is continuously adhered to the glue film, and is continuously conveyed backwards in a rolling manner by the glue film 42;

then the first chip capacitor attached to the adhesive film is continuously conveyed and passes through a station of the adhesive film cutting device 1, the foremost end edge of the chip capacitor is positioned at the edge of the cutting seam 111, then the pressing block 12 is controlled to press down, the pressing block 12 presses the front end of the chip capacitor tightly, the rear side of the chip capacitor is already positioned on the adhesive pressing frame 31 and is laid flat, the first chip capacitor is pressed by the anti-slip strip 13 on the rear side of the pressing block 12 at the moment, the second anti-slip strip is pressed by the anti-slip strip 13 on the front side at the moment, the air cylinder of the blade sliding table 18 is controlled to push and pull the blade 17 on the cutting slide rail 16 once, the adhesive film between the first chip capacitor and the second chip capacitor which pass through is cut off, the first chip capacitor is then sucked by the discharging sucker 3 and then clamped by the discharging sucker 3 and then placed on the finished product frame 32, the continuous cutting is completed by the adhesive tape, the chip capacitor attached to the finished product frame 32 through the discharging sucker 3, and the loading sucker 2 on the front end continuously abuts against the cover plate 22 to attach the adhesive tape;

along with the paster electric capacity constantly increases on the finished product frame 32, the elevator motor 35 of unloading constantly controls finished product frame 32 and reduces, holds more paster electric capacities, and finished product frame 32 does not need the control position precision, only need stably accept can.

The device has the advantages of high rubberizing efficiency, convenient die penetration, no redundant action in work, small clearance, less scrapped glue film amount and higher production continuity.

The front-back direction refers to the direction of the chip capacitor in the advancing direction of the device, the starting point is front, the end point is back, the raw material frame 21 locked by the device is the starting point bearing the chip capacitor, namely the front side, and the finished product frame 32 is the end point bearing the chip capacitor, namely the back side; the left-right direction and the transverse direction are both along the left-right direction, and the left-right direction refers to the left side and the right side of the direction in which the patch capacitor advances.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims (4)

1. The utility model provides a mechanism is glued to lid on paster electric capacity's rubberizing machine which characterized in that includes: the device comprises a rack (6), a butt joint cover plate (22), a cylinder guide block (226) and a limiting block (223);

the rack (6) is a body of the adhesive tape sticking machine;

the butt joint cover plate (22) is a flat plate, a step-shaped gluing edge (221) is arranged on the rear side of the butt joint cover plate (22), the rear side of the bottom of the gluing edge (221) is an upward raised inclined surface, and the thickness of the front side of the gluing edge (221) is larger than that of the rear side;

the bottom of the butt joint cover plate (22) is provided with an air cylinder guide block (226), two limiting rotating blocks (227) and two plate-side limiting rods (224);

a flip cylinder (222) is further mounted below the butt joint cover plate (22), one end of the flip cylinder (222) is connected with the rack (6), and the other end of the flip cylinder (222) is rotatably connected with a cylinder guide block (226) through a rotating shaft;

the number of the limiting blocks (223) is two, the two limiting blocks (223) are fixedly mounted on the rack (6), the two limiting rotating blocks (227) are respectively arranged on the left side and the right side of the butt joint cover plate (22), each limiting block (223) is rotatably connected with one limiting rotating block (227) through a rotating shaft, the butt joint cover plate (22) can be mounted on the limiting blocks (223) in a turnover mode through the limiting rotating blocks (227), and the rotating axes of the two limiting rotating blocks (227) are overlapped;

the two plate-side limiting rods (224) are symmetrically arranged on the left side and the right side of the bottom of the butt joint cover plate (22), each limiting block (223) is provided with a limiting adjusting screw (225), the limiting adjusting screws (225) can be locked on the limiting blocks (223) in a stretching and lifting mode through threads, the upper ends of the limiting adjusting screws (225) extend out of the tops of the limiting blocks (223), and the two plate-side limiting rods (224) can be covered on the two limiting adjusting screws (225) in a one-to-one correspondence mode in a separated mode.

2. The cover gum mechanism on paster electric capacity's rubberizing machine of claim 1, characterized by: the thickness on rubberizing limit (221) is less than half of butt joint apron (22) thickness, the thickness of the front side on rubberizing limit (221) is greater than the thickness of rear side, the front side thickness on rubberizing limit (221) is no longer than 5mm, the last side of rubberizing limit (221) is no longer than 1mm along thickness, butt joint apron (22) are the rectangle flat board, the uplift angle on rubberizing limit (221) uplift inclined plane is 45.

3. The cover rubber mechanism on coating machine of paster electric capacity of claim 1, its characterized in that: the butt joint cover plate (22) is a rectangular flat plate, the rotating axis of the limiting rotating block (227) is parallel to the front side edge of the butt joint cover plate (22), and the interval between the rotating axis of the limiting rotating block (227) and the front side edge of the butt joint cover plate (22) is not more than 2cm.

4. The cover rubber mechanism on coating machine of paster electric capacity of claim 1, its characterized in that: the lower end of the plate-side limiting rod (224) is wrapped by a cylindrical buffer sleeve, the top of the limiting adjusting screw rod (225) is provided with a cylindrical buffer rubber sleeve, the lower end of the limiting adjusting screw rod (225) is locked with a limiting block (223) through a nut, and butt joint threads of the limiting block (223) and the limiting adjusting screw rod (225) are transition fit threads.

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