CN208550201U - A kind of dotter - Google Patents

Abstract

The utility model discloses a kind of dotters, are used for a kind of extruded-riveted special button being made of a surface buckle and two bottom buckles；Including feeding mechanism, punching mechanism, dotter structure and base；Feeding mechanism includes two for conveying the lower conveying conduit of bottom buckle；Punching mechanism is equipped with the upper mold transmission shaft that can be moved back and forth along the vertical direction；Dotter structure includes upper die holder and lower die holder；Upper die holder is fixed at the lower end of upper mold transmission shaft, which is provided with two bottom buckle locating slots docked respectively with the discharge end for conveying conduit under two；Lower die holder is fixed on base and is correspondingly arranged in below upper die holder, to place surface buckle for positioning；Feeding mechanism, punching mechanism, dotter structure are assembled on base.The dotter is applied to the riveted for the special button that surface buckle needs to cooperate with two bottom buckles, and high degree of automation is easy to operate, is conducive to improve enterprises production efficiency and reduces cost of labor.

Description

A kind of dotter

Technical field

The utility model relates to shoes industry technical field of processing equipment, and in particular to a kind of dotter.

Background technique

It is more and more to look forward in face of the continuous promotion of the labour market situation and manufacturing industry human cost that get worse Industry selects the production model of mechanical intelligent, meanwhile, with the raising that consumer samples, more and more shoes can all stamp spy Different buttonhole achievees the purpose that beautify shoes, and the length of this special buttonhole is longer, therefore, the length of required button Corresponding longer, in order to improve button stability extruded-riveted on fabric, the surface buckle of the button needs to match with two bottom buckles It closes and fixes, and equipment used by factory cannot achieve the extruded-riveted operation of automation of this kind of special button at present, it can only It is operated using manual dotter, production efficiency is low, produces required high labor cost, is unfavorable for meeting the production of enterprise Demand.

Utility model content

The purpose of the utility model is to overcome drawbacks described above present in background technique or problems, provide one kind and beat button Machine, the dotter are applied to the riveted for the special button that surface buckle needs to cooperate with two bottom buckles, high degree of automation, operation letter Just, be conducive to improve enterprises production efficiency and reduce cost of labor.

To reach above-mentioned purpose, the utility model adopts the following technical solution:

A kind of dotter is used for a kind of extruded-riveted special button being made of a surface buckle and two bottom buckles；Including Feeding mechanism, punching mechanism, dotter structure and base；The feeding mechanism includes two for conveying the lower delivery chute of bottom buckle Road；The punching mechanism is equipped with the upper mold transmission shaft that can be moved back and forth along the vertical direction；The dotter structure include upper die holder and Lower die holder；The upper die holder is fixed at the lower end of upper mold transmission shaft, which is provided with two and conveys conduit under two respectively Discharge end docking bottom buckle locating slot；The lower die holder is fixed on base and is correspondingly arranged in below upper die holder, with Surface buckle is placed for positioning；The feeding mechanism, punching mechanism, dotter structure are assembled on base.

Further, the feeding mechanism includes two conveying conduit units and corresponding with two conveying conduit units respectively Two hoppers being arranged；It is each it is described conveying conduit unit be used for connect one of hopper discharge end and one of them under it is defeated The feed end of conduit is sent, for accepting one bottom buckle of the bottom buckle in hopper and delivery chute pipeline in one step conveying downwards.

Further, each conveying conduit unit includes upper conveying conduit, passage piece and the first driving element；It is described The upper end of upper conveying conduit connects with hopper, and lower end is docked with conveying conduit interval；The passage piece is installed in delivery chute Between road and lower conveying conduit, the relief hole passed through for bottom buckle which is provided with；The fixing end of first driving element with it is upper defeated Send conduit and/or lower conveying conduit affixed, driving end and passage piece are affixed, and it is mobile with driving passage piece, make resigning thereon Hole is connected to or is staggered with upper conveying conduit and lower conveying conduit.

Further, be equipped in the hopper the second driving element and with the output end of the second driving element is affixed stirs Part；Second driving element drives shifting part rotation, and the bottom buckle in hopper is dialed to the discharge port of hopper and is slid extremely It conveys in conduit unit.

Further, the punching mechanism includes driving part, brake component, clutch and transmission parts；The driving The output shaft of component is connect with clutch and the coaxial rotation stop of transmission parts；The brake component is for blocking or disconnecting clutch； The transmission parts in brake component disconnecting clutch with the output shaft of driving part for rotating and driving upper mold transmission shaft It moves up and down.

Further, the driving part includes third driving element, driving wheel and driven wheel；The third driving element Output shaft and driving wheel it is coaxially affixed, to drive its rotation；Tensioning has transmission belt between the driving wheel and driven wheel；It is described The output shaft that transmission shaft forms the driving part is coaxially connected on driven wheel.

Further, the clutch is equipped with holding portion；The brake component includes baffle and the 4th driving element；Institute It states baffle and the output end of the 4th driving element is affixed, clamping is driven by the 4th driving element or be detached from holding portion.

Further, the transmission parts include cam mechanism and swing rod；The driving link and driving portion of the cam mechanism The output end rotation stop of part connects, and the upper end of driven member is equipped with sliding slot；The shaft of the swing rod is articulated on base, one end hinge It is connected in sliding slot, the upper end of the other end and upper mold transmission shaft is hinged.

Further, foot pedal is installed on the base；First driving element, the second driving element and 4 wheel driven Dynamic element is stepping cylinder, by stepping on footboard drives operation.

Further, the third driving element is motor.

From the above description of the utility model, it can be seen, compared with the existing technology, what the utility model had is following beneficial Effect:

1, in the technical program, there are two bottom buckle locating slots for setting on the upper die holder in dotter, to place for positioning Bottom buckle；Bottom buckle locating slot is docked with the discharge end of lower conveying conduit, to guarantee that punching mechanism drives by upper die holder to under When die holder cooperates, it is extruded-riveted and fixed that two bottom buckles on upper die holder can buckle foot cooperation with two of the surface buckle on lower die holder In on fabric, which obviate the step of operating twice is needed, raising production efficiency, the degree of automation are higher, so as to effective Ground reduces cost of labor.

2, feeding mechanism include two hoppers under the discharge end and one of them for being respectively used to connect one of hopper Two conveying conduit units of the feed end of conduit are conveyed, and controls only one primary bottom buckle and is delivered in lower conveying conduit, To realize reliably extruded-riveted movement.

3, convey in conduit unit, drive passage piece mobile when the starting of the first driving element so that relief hole with it is upper defeated Send the discharge end of conduit to be connected with lower conveying conduit, when the first driving element in place after horse back return namely relief hole with The discharge end of upper conveying conduit is then staggered at once again after being connected with lower conveying conduit, so that guaranteeing can be with only one bottom Button slides into lower conveying conduit, and structure is simple, easy to operate.

4, it by the way that the second driving element and shifting part are arranged in hopper, can be fallen in time with the bottom buckle guaranteed in hopper Enter in supreme conveying conduit, avoids the occurrence of vacant in conveying conduit and influence the phenomenon that beating button quality appearance.

5, the structure of punching mechanism is simple, high degree of automation, guarantees that upper mold can be moved up and down reliably.

6, in driving part, by setting driving wheel and driven wheel, it ensure that the output shaft output of third driving element Movement stability, in addition, may also function as the effect for adjusting revolving speed so that the revolving speed of the output shaft of driving part meet it is practical Demand.

7, by setting brake component, to realize clamping or disengaging to clutch, when brake component is clamped clutch, The output shaft of driving part stops operating, and transmission parts do not move；It is run when under driving of the brake component in the 4th driving element And when disconnecting clutch, the output shaft of driving part is rotated, and transmission parts is driven to run, so that upper mold transmission shaft drives upper mold Seat upper and lower displacement, structure is simple, function is reliable.

8, transmission parts drive swing rod to swing by cam mechanism, and drive the upper and lower displacement of upper mold transmission shaft, knot by swing rod Structure is simple, reliable in action.

9, the first driving element, the second driving element and third driving element are all made of stepping cylinder, to guarantee its equal energy Enough move preset distance, reliability when movement is higher, by stepping on footboard drives operation, it is easy to operate and It is laborsaving.

10, third driving element is that motor realizes the transmission to transmission parts in simple structure.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the utility model embodiment, make below to required in embodiment description Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is the structural schematic diagram of the utility model embodiment dotter；

Fig. 2 is the structural schematic diagram of lower conveying conduit and conveying conduit unit in the utility model embodiment；

Fig. 3 is the structural schematic diagram of transmission parts in the utility model embodiment；

Fig. 4 is the working principle structural schematic diagram of punching mechanism in the utility model embodiment.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.Obviously, described embodiment is the preferred embodiment of the utility model, and is not to be seen as to it The exclusion of his embodiment.Based on the utility model embodiment, those skilled in the art are not before making creative work Every other embodiment obtained is put, is fallen within the protection scope of the utility model.

In claims of the utility model, specification and above-mentioned attached drawing, unless otherwise specifically limited, term is such as used " first ", " second " or " third " etc. is provided to distinguish different objects, be not use to describe a particular order.

In claims of the utility model, specification and above-mentioned attached drawing, unless otherwise specifically limited, for orientation Word, such as using term " center ", " transverse direction ", " longitudinal direction ", "horizontal", " vertical ", "top", "bottom", "inner", "outside", "upper", The indicating positions such as "lower", "front", "rear", "left", "right", " clockwise ", " counterclockwise " or positional relationship are based on shown in attached drawing Orientation and positional relationship, and be merely for convenience of narration the utility model and simplify description, rather than indication or suggestion is signified Device or element must have a particular orientation or be constructed and operated in a specific orientation, so can not be interpreted as limitation this The specific protection scope of utility model.

In claims of the utility model, specification and above-mentioned attached drawing, unless otherwise specifically limited, term is such as used " affixed " or " being fixedly connected ", should broadly understood, i.e., between the two without any company of displacement relation and relative rotation relationship Connect mode, that is to say, that including being unremovably fixedly connected with, being removably secured connection, be linked together and by other dresses It sets or element is fixedly connected.

In claims of the utility model, specification and above-mentioned attached drawing, such as using term " includes ", " having " and Their deformation, it is intended that " including but not limited to ".

Referring to Fig. 1 to Fig. 4, Fig. 1 to Fig. 4 shows the structural schematic diagram of the utility model embodiment dotter.Extremely such as Fig. 1 Shown in Fig. 4, in the utility model embodiment, dotter is used for a kind of extruded-riveted special button, and the special button is by one Surface buckle and two bottom buckles are constituted, and in the utility model, dotter includes feeding mechanism 1, punching mechanism 2, dotter structure 3 and base 4；Feeding structure, punching mechanism 2, dotter structure 3 are assembled on base 4.

Wherein, feeding mechanism 1 includes the lower conveying conduit 11, conveying conduit unit 12 and hopper 13 that quantity is two, Feeding structure is made of two transfer passages, every transfer passage by one of hopper 13, conveying conduit unit 12 and under it is defeated Conduit 11 is sent in turn switch on to be formed.

Specifically, lower conveying conduit 11 is used to convey bottom buckle, and sequentially into conveying one；Each conveying conduit unit 12 is used In the feed end of the discharge end for connecting one of hopper 13 and one of them lower conveying conduit 11, for accepting in hopper 13 Bottom buckle and downwards conveying conduit 11 once conveying one bottom buckle.

Each conveying conduit unit 12 includes upper conveying conduit 121, passage piece 122 and the first driving element 123；Upper conveying The upper end of conduit 121 connects with hopper 13, and lower end is docked with conveying conduit interval；Passage piece 122 is installed in conveying conduit Between 121 and lower conveying conduit 11, the relief hole 1220 passed through for bottom buckle which is provided with；The fixing end of first driving element 123 Affixed with upper conveying conduit 121 and/or lower conveying conduit 11, driving end and passage piece 122 are affixed, elapse piece 122 with driving It is mobile, so that relief hole 1220 thereon is connected to or is staggered with upper conveying conduit 121 and lower conveying conduit 11.It should be appreciated that first The fixing end of driving element 123 should be affixed with the outer wall of upper conveying conduit 121 and/or lower conveying conduit 11, without that should stop For conveying the channel of bottom buckle in it.

Preferably, the first driving element 123 is stepping cylinder.

In the present embodiment, hopper 13 is equipped with feeding port and storage chamber；The lower end of storage chamber is equipped with discharge port；Hopper 13 The second driving element and the shifting part affixed with the output end of the second driving element are equipped in storage chamber, the second driving element is used for Shifting part rotation is driven, the bottom buckle that the bottom buckle in 13 storage chamber of hopper is pushed is dialed into discharge port and slides supreme delivery chute In road 121.Preferably, the second driving element is stepping cylinder.

Punching mechanism 2 includes driving part 21, brake component 22, clutch 23, transmission parts 24 and upper mold transmission shaft 25.

The output end of driving part 21 connects with clutch 23 and the coaxial rotation stop of transmission parts 24；Brake component 22 is for stopping Or disconnecting clutch 23；Transmission parts 24 are used to turn the output shaft of driving part 21 in 22 disconnecting clutch 23 of brake component It moves and upper mold transmission shaft 25 is driven to move up and down, to realize that upper mold transmission shaft 25 moves back and forth along the vertical direction.

Specifically, driving part 21 includes third driving element 211, driving wheel 212 and driven wheel 213；Third driving member The output shaft of part 211 is coaxial affixed with driving wheel 212, to drive its rotation；There is tensioning between driving wheel 212 and driven wheel 213 Transmission belt 214；The output shaft that transmission shaft 2131 forms above-mentioned driving part 21 is coaxially connected on driven wheel 213.In this reality Apply in example, the size of driven wheel 213 is greater than the size of driving wheel 212, with to the revolving speed by 211 output shaft of third driving element into Row slows down.Preferably, third driving element 211 is motor.

In the present embodiment, clutch 23 is equipped with holding portion；Brake component 22 includes baffle 221 and the 4th driving element 222；Baffle 221 and the output end of the 4th driving element 222 are affixed, drive clamping by the 4th driving element 222 or are detached from holding Portion.Preferably, the 4th driving element 222 in the present embodiment is stepping cylinder.

Transmission parts 24 include cam mechanism 241 and swing rod 242；Wherein, the driving link 2411 in cam mechanism 241 and drive The output end rotation stop of dynamic component 21 connects, the rotation section that the driven member 2412 in cam mechanism 241 is cooperated due to driving link 2411 It is constituted with mandril portion, rotation section drives the upper end upper and lower displacement in mandril portion, the upper end in mandril portion under the action of driving link 2411 Equipped with sliding slot 2410, the shaft of swing rod 242 is articulated on base 4, and to form fulcrum, one end of swing rod 242 is articulated with sliding slot In 2410, the upper end of the other end and upper mold transmission shaft 25 is hinged；Upper mold transmission shaft 25 is vertically arranged, therefore, when swing rod 242 exists When one end in sliding slot 2410 moves up, the one end connecting with upper mold transmission shaft 25 is moved down；Conversely, when swing rod 242 is in sliding slot When one end in 2410 moves up, the one end connecting with upper mold transmission shaft 25 is moved down.

Preferably, in the present embodiment, one end that swing rod 242 is articulated in sliding slot 2410 is connected with reset spring, resets The other end of spring is connect with mandril portion, so that the one end hinged with sliding slot 2410 of swing rod 242 resets again after moving up.

Dotter structure 3 includes upper die holder 31 and lower die holder 32；Upper die holder 31 is fixed at the lower end of upper mold transmission shaft 25, It which is provided with two bottom buckle locating slots docked respectively with the discharge end for conveying conduit 11 under two；Lower die holder 32 is fixed at On base 4 and it is correspondingly arranged in the lower section of upper die holder 31, to place surface buckle for positioning.

In the present embodiment, it is installed with foot pedal 40 on base 4, for stepping on and driving each stepping cylinder operation setting Distance；Each stepping cylinder is homing after the distance of operation setting.Each stepping cylinder is through pressure regulator valve and power supply and foot The switch connection of pedal 40, when foot pedal 40 is stepped on, power supply is connected, and solenoid valve obtains electric, and each stepping cylinder is respectively run once.

In practical operation, bottom buckle is transferred to two hoppers 13；Then, surface buckle positioning is placed in lower die holder 32 On, it is needed in surface buckle with the button foot of bottom buckle riveted upward；Power on, step on foot pedal 40, at this point, the second driving element starts And shifting part is driven to stir once, so that bottom buckle slides in supreme conveying conduit 121 through 13 discharge port of hopper, meanwhile, first drives Dynamic element 123 runs and drives passage piece 122 mobile, so that relief hole 1220 and upper conveying conduit 121 and lower conveying conduit 11 Return after being connected, when connection, a bottom buckle in upper conveying conduit 121 is slid into lower conveying conduit 11, as a result, two sides Bottom buckle in lower conveying conduit 11 can slide to upper die holder 31；At this point, there is also movement be the 4th driving element 222 Also operation is generated, and drives the holding portion of 221 disconnecting clutch 23 of baffle, third driving element 211 runs and drives driving wheel 212 and driven wheel 213 rotate, thus drive transmission shaft 2131 rotate, be installed in the master of the cam mechanism 241 on transmission shaft 2131 Moving part 2411 rotates, to drive the upper end of driven member 2412 to move up, swing rod 242 itself and sliding slot under the pushing and pressing of driven member 2412 2410 hinged one end move up, and swing rod 242 drives upper mold transmission shaft 25 to move down with the hinged one end of upper mold transmission shaft 25, upper die holder 31 press with the cooperation of lower die holder 32, to realize the extruded-riveted of surface buckle and bottom buckle.

It can be seen from above-described embodiment that being arranged on upper die holder 31 in the technical solution of the utility model in dotter There are two bottom buckle locating slots, to place bottom buckle for positioning；Bottom buckle locating slot is docked with the discharge end of lower conveying conduit 11, thus Guarantee that punching mechanism 2 drives by upper die holder 31 to when cooperating with lower die holder 32, two bottom buckles on upper die holder 31 can be under Two button feet cooperation of surface buckle on die holder 32 is extruded-riveted and is fixed on fabric, and which obviate the steps for needing to operate twice Suddenly, it is higher that production efficiency, the degree of automation are improved, so as to be effectively reduced cost of labor.

Feeding mechanism 1 includes two hoppers 13 and be respectively used to connect the discharge end of one of hopper 13 and one of them Two conveying conduit units 12 of the feed end of lower conveying conduit 11, and control only one primary bottom buckle and be delivered to lower delivery chute In road 11, to realize reliably extruded-riveted movement.

It conveys in conduit unit 12, drives passage piece 122 mobile when the starting of the first driving element 123, so that relief hole 1220 with it is upper conveying conduit 121 discharge end and lower conveying conduit 11 be connected, when the first driving element 123 in place after horse back Subsequent horse back again after return namely relief hole 1220 are connected with the discharge end of upper conveying conduit 121 and lower conveying conduit 11 It is staggered, to guarantee to slide into only one bottom buckle in lower conveying conduit 11, structure is simple, easy to operate.

By the way that the second driving element and shifting part are arranged in hopper 13, to guarantee that the bottom buckle in hopper 13 can be in time It falls into supreme conveying conduit 121, avoids the occurrence of vacant in conveying conduit 121 and influence the phenomenon that beating button quality appearance.

The structure of punching mechanism 2 is simple, high degree of automation, guarantees that upper mold can be moved up and down reliably.

In driving part 21, by setting driving wheel 212 and driven wheel 213, the defeated of third driving element 211 ensure that The stability of the movement of shaft output, in addition, may also function as the effect for adjusting revolving speed, so that the output shaft of driving part 21 turns Speed meets actual demand.

By the way that brake component 22 is arranged, to realize clamping or disengaging to clutch 23, when brake component 22 is clamped clutch When device 23, the output shaft of driving part 21 stops operating, and transmission parts 24 do not move；When brake component 22 is in the 4th driving element When running simultaneously disconnecting clutch 23 under 222 driving, the output shaft rotation of driving part 21, and transmission parts 24 is driven to run, So that upper mold transmission shaft 25 drives 31 upper and lower displacement of upper die holder, structure is simple, function is reliable.

Transmission parts 24 are driven swing rod 242 to swing by cam mechanism 241, and drive upper mold transmission shaft 25 by swing rod 242 Upper and lower displacement, structure is simple, reliable in action.

First driving element 123, the second driving element and third driving element 211 are all made of stepping cylinder, to guarantee it Preset distance can be moved, reliability when movement is higher, by stepping on the driving operation of foot pedal 40, operation It is easy and laborsaving.

Third driving element 211 is that motor realizes the transmission to transmission parts 24 in simple structure.

In summary it analyzes, technical solution disclosed by the utility model solves whole technical problems listed by specification, Realize corresponding technical effect.

The description of description above and embodiment for explaining scope of protection of the utility model, but is not constituted to this reality With the restriction of novel protected range.By the enlightenment of the utility model or above-described embodiment, those of ordinary skill in the art are combined Common knowledge, the ordinary technical knowledge of this field and/or the prior art pass through logical analysis, reasoning or limited examination Test it is available to the modification of the utility model embodiment or in which a part of technical characteristic, equivalent replacement or other improvements, It should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of dotter is used for a kind of extruded-riveted special button being made of a surface buckle and two bottom buckles；Its feature It is: including feeding mechanism, punching mechanism, dotter structure and base；

The feeding mechanism includes two for conveying the lower conveying conduit of bottom buckle；

The punching mechanism is equipped with the upper mold transmission shaft that can be moved back and forth along the vertical direction；

The dotter structure includes upper die holder and lower die holder；The upper die holder is fixed at the lower end of upper mold transmission shaft, thereon If there are two the bottom buckle locating slots docked respectively with the discharge end for conveying conduit under two；The lower die holder is fixed at base It goes up and is correspondingly arranged in below upper die holder, to place surface buckle for positioning；

The feeding mechanism, punching mechanism, dotter structure are assembled on base.

2. a kind of dotter as described in claim 1, it is characterized in that: the feeding mechanism include two conveying conduit units with Two hoppers that conduit unit is correspondingly arranged are conveyed with two respectively；

Each conveying conduit unit be used to connect one of hopper discharge end and one of them lower conveying conduit into End is expected, for accepting one bottom buckle of the bottom buckle in hopper and delivery chute pipeline in one step conveying downwards.

3. a kind of dotter as claimed in claim 2, it is characterized in that: each conveying conduit unit includes upper delivery chute Road, passage piece and the first driving element；

The upper end of the upper conveying conduit connects with hopper, and lower end is docked with conveying conduit interval；The passage piece is installed in Between upper conveying conduit and lower conveying conduit, the relief hole passed through for bottom buckle which is provided with；The fixation of first driving element End is affixed with upper conveying conduit and/or lower conveying conduit, and driving end and passage piece are affixed, with driving passage piece movement, makes it On relief hole be connected to or be staggered with upper conveying conduit and lower conveying conduit.

4. a kind of dotter as claimed in claim 3, it is characterized in that: being equipped with the second driving element in the hopper and with second The affixed shifting part of the output end of driving element；Second driving element drives shifting part rotation, by the bottom buckle in hopper It dials to the discharge port of hopper and slides to conveying conduit unit.

5. a kind of dotter as claimed in claim 4, it is characterized in that: the punching mechanism include driving part, brake component, Clutch and transmission parts；

The output shaft of the driving part is connect with clutch and the coaxial rotation stop of transmission parts；The brake component for stop or Disconnecting clutch；The transmission parts are for rotating and driving with the output shaft of driving part in brake component disconnecting clutch Upper mold transmission shaft moves up and down.

6. a kind of dotter as claimed in claim 5, it is characterized in that: the driving part includes third driving element, active Wheel and driven wheel；The output shaft and driving wheel of the third driving element are coaxially affixed, to drive its rotation；The driving wheel and Tensioning has transmission belt between driven wheel；The output that transmission shaft forms the driving part is coaxially connected on the driven wheel Axis.

7. a kind of dotter as claimed in claim 5, it is characterized in that: the clutch is equipped with holding portion；

The brake component includes baffle and the 4th driving element；The baffle and the output end of the 4th driving element are affixed, by 4th driving element driving clamping is detached from holding portion.

8. a kind of dotter as claimed in claim 5, it is characterized in that: the transmission parts include cam mechanism and swing rod；Institute The output end rotation stop of the driving link and driving part of stating cam mechanism connects, and the upper end of driven member is equipped with sliding slot；The swing rod Shaft be articulated on base, one end is articulated in sliding slot, and the upper end of the other end and upper mold transmission shaft is hinged.

9. a kind of dotter as claimed in claim 7, it is characterized in that: being installed with foot pedal on the base；

First driving element, the second driving element and the 4th driving element are stepping cylinder, foot-operated by stepping on Plate driving operation.

10. a kind of dotter as claimed in claim 6, it is characterized in that: the third driving element is motor.