CN1467046A

CN1467046A - Bi-directional forging molding equipment

Info

Publication number: CN1467046A
Application number: CNA02141176XA
Authority: CN
Inventors: 林正焕
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-08
Filing date: 2002-07-08
Publication date: 2004-01-14
Anticipated expiration: 2022-07-08
Also published as: CN1227081C

Abstract

A bidirectional forging machine features that a movable bench is reciprocating left and right once to manufacture two products. The rotation of a cam can drive the cutting knife and clamping clippers to do straight line movement. When the positions of plastic supporters are mutually exchanged, the rear end of a supporting bolt is driven by the primarily shaped raw material to separate it from the inner surface of mechanical main body and make the supporting bolt move up and down, resulting in high consistence of products and a long service life of the supporting bolt.

Description

Two-way forging and forming device

Technical field

The present invention relates to a kind of two-way forging and forming device (bidirectional forging formeddevice), at its both sides Moving jack horse bump mold (strokes molding) is arranged respectively, when Moving jack horse (carriage) move left and right, can clash into raw material, produce product thus.

Background technology

Generally speaking, fastenings such as anchor, bolt and screw; And electric parts all is to make by forging and forming device is a large amount of as igniter nozzle and machinery rotation axle.Forging and forming device allows two bumps clash into raw material continuously and to produce product with mold.It is the mode that relevant unidirectional (unidirectional) forging and forming device manufactures a product that relevant technology is arranged with it, it moves around with mold support (holder) frame a bump in a side of Moving jack horse, first and second bumps are done continuous moving with upper end and lower end that mold is placed on bump mold support, therefore when Moving jack horse moves around, can alternately clash into the raw material of inserting mold (die).

In order to allow first and second bumps can alternately clash into raw material with mold, bump mold support is placed on the front end of Moving jack horse so that move up and down.Perhaps, bump mold support is motionless, and mold is done from main body and moved up and down.In any case in unidirectional forging and forming device, Moving jack horse must be operated and just finish a product for twice, so reduced production efficiency.

In order to enhance productivity, develop and a kind of forging and forming device, its first bump is the central authorities that are placed on bump mold support with mold, second bump mold is to be placed on top and the bottom of first bump with mold, and mold is placed on the top and bottom of mold support moving up and down.In this forging and forming device, whenever the Moving jack horse operation is once just carried out two steps, simultaneously so can finish a product.In this case, productivity ratio just has been multiplied.Yet,, also very limited to the raising of productivity ratio because clash into an end that all only is placed on Moving jack horse with mold and mold.

Therefore, applicant of the present invention has invented a kind of two-way forging and forming device, wherein first and second bumps are the relative both sides that are placed on the Moving jack horse that moves forward and backward along final drive shaft with mold, install mold support that upper and lower side has a moulding hole simultaneously and move up and down clashing into to make of the top and the bottom of mold with respect to first and second.This two-way forging and forming device has been obtained Korean Patent, and the patent No. is 64547 (notification number is 93-4056).In this two-way forging and forming device, because Moving jack horse moves forward and backward once, the mold that is positioned at axle head can be made two products, and its productivity ratio will improve four times compared with relevant unidirectional forging and forming device.

But, so two-way forging and forming device has following problem.

At first, operate cutter and clamp (tongs), power transmission shaft is moved from rotating the mobile straight line that changes over a glider cam plate by a cam lever, raw material should be cut in cutter and clamp straight line move, in this case, power loss can increase, and manufacturing cost also can increase because of the structure of complexity.And the raw material that downcuts when cutter is because clamp when impaired, and machine still remains on cut state.Because this reason, when clamp was delivered to the moulding hole of mold support with raw material, raw material was the lateral margin place that is placed on the mold support.

Secondly, when if the raw material that is put into mold support moulding hole is clashed into mold by first bump, raw material just is pushed through in the moulding hole, the support pin (support pin) of reverse mobile mold support inside, an end of support pin hangs in the keyhole on the main wall as a result, in this case, in case the mold support is activated and moves up and down, one end of support pin will clash with main wall, an end of the support pin of therefore can wearing and tearing.

The 3rd, be when support pin one end heavy wear, to carry out if forge, the support pin length that supports elementary bump raw material so can shorten gradually, so the raw material in the moulding hole of packing into is and then elongated, causes the main body moulding long and head end moulding that be positioned at outside the moulding hole is little.

At last, the support pin wearing and tearing reduce the precision and the uniformity of shaped article gradually because repeatable operation makes, so make the quality variation of product.Simultaneously, if support pin is because bump causes the coupling part seriously to be cut or wear and tear and disconnect or damages, then forming step must stop to repair damage, and this also makes the productivity ratio reduction.

Summary of the invention

Therefore, the present invention is directed to two-way forging and forming device, substantially solve the problem that one or more above-mentioned restriction and inconvenience because of correlation technique cause.

An object of the present invention is to provide a kind of two-way forging and forming device, its power that is used to operate the steel wire cutter transmits, and is simple in structure and can not cause power loss, therefore can save manufacturing cost.

Another object of the present invention provides a kind of two-way forging and forming device, and the cutting raw material can accurately be clamped and be moved to the clamp of its design, therefore can more desirably clash into raw material.

Other purpose of the present invention provides a kind of two-way forging and forming device, it is designed to rotate and when intercoursing when two mold support positions, one end that can prevent to support the support pin of elementary shaped article is worn and torn easily or is impaired, therefore improves the productivity ratio and the uniformity of product.

Other feature and advantage of the present invention will occur in following description, and a part can obviously easily be seen from describe, and a part can be learnt by implementing the present invention.Target of the present invention and other advantages can be from here written description and the structure that provides especially of claim and accompanying drawing and understood and realize.

In order to realize these and other benefits, and according to purpose of the present invention, description as detailed and summary, two-way forging and forming device of the present invention comprises: the left side and the right

Moving jack horse

120 and 120a, be connected in and connect round bar (connecting rods) 121 and 121a, can move reciprocatingly together by the power of the crank axle that is positioned at final drive shaft 110 central authorities (crank shaft) 111; Mold support (molding holder) 130 and 130a are installed in the front end of Moving

jack horse

120 and 120a, and be equipped with the

second bump mold

132 and 133 on clashing into mold 131 in first of central authorities, mold support (die holder) 140 and 140a are installed into the both sides that can move up and down in main body 100, be used for resisting mold support 130 and 130a, and in the scope in moulding hole, top and bottom, supply with mold (die) 141 and 142; Cutter 160 and 160a and clamp 161 and 161a are used to cut raw material 210 and raw material 210 are filled in the moulding hole, top and bottom of mold 141 and 142;

Support pin

144 and 145 is installed in the moulding hole, is used for supporting raw material 210; Bolt mold in addition (pin dies) 177 and 178 is mounted, respectively by pair of cams 171 and 172,

round bar

173 and 174 and connecting rod 175 and 176 operate

support pin

144 and 145, whenever so the mold of mold support 130 and 130a at left and right directions bump raw material once, follow-up shaped article just can create from

mold support

140 and 140a respectively, rotate off and on because of ratchet gear (ratchet gears) 182 and 182a invar cable connecting rod (steel wirelinks) 180 and 180a and control module (control units) 181 and 181a, push raw material to cutter, wherein helical gear 112 is ends that are installed on final drive shaft 110, pair of

cams

164 and 165 is installed on asessory shaft (auxiliary shafts) 162 and the 162a, accept power by helical gear 163 and the 163a that is vertically mounted on the helical gear 112, the end of cutter 160 and 160a and clamp 161 and 161a is to be promoted by

cam

164 and 165, auxiliary simultaneously bolt mold (auxiliary pin die) 190 and 191 of auxiliary connecting rods (auxiliary link) are installed on connecting rod 175,176 and the upper end, between the lower

end bolt mold

177 and 178, can be in the end

operation support pin

144 and 145 that new raw material is inserted, so auxiliary bolt mold 190 promotes the support pin of contact main body 100 inwalls successively and passes through auxiliary circle lever arm (auxiliary rods arms) 192 and separate with inwall to separate support pin with 193, auxiliary circle lever arm 192 and 193 is the ends that are installed on

round bar

173 and 174, rotatable connecting rod 175 and 176 forms a monolithic entity each other in a short length.

Must be appreciated that the detailed description of general description in front and back all is example and explanation, and be the further explanation that purpose provides claim of the present invention.

Description of drawings

Describe the present invention in detail below with reference to accompanying drawing, the identical label in the accompanying drawing is represented components identical.

Fig. 1 is a perspective view of the present invention, shows forging and forming device according to an embodiment of the invention.

Fig. 2 is the plane according to forging and forming device of the present invention.

Fig. 3 is the state diagram that asessory shaft and cam wheel (cam wheels) are installed among the present invention.

Fig. 4 is the state perspective view that auxiliary circle lever arm, auxiliary connecting rod and the auxiliary bolt mold between height round bar and connecting rod among the present invention installed.

Fig. 5 A is the schematic diagram of explanation operating procedure of the present invention to 5F.

Fig. 6 is the perspective view that ratchet gear passes through wirerope connecting rod mode of operation.

The specific embodiment

Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing, as just example.

With the same way as in the correlative technology field, as depicted in figs. 1 and 2, forging and forming device of the present invention, comprise and connect round bar 121 and 121a, its left side and right side with the crank axle that is positioned at final drive shaft 110 central authorities (crank shaft) 111 cooperates, can follow the rotation of crank axle to move reciprocatingly point-blank, Moving jack horse (carriages) 120 and 120a are connected in connecting rod 121 and 121a, mold support 130 and 130a then are installed in the front end of Moving

jack horse

120 and 120a, be the first bump mold 131 in the central, the latter has the

second bump mold

132 and 133 at the position, top and bottom; The both sides that mold support 140 and 140a are installed on main body 100 correspond to mold support 130 and 130a, the cam tracks 151 that connects a sub-gear 150 by connecting plate 112 moves up and down, and mold (dies) 141 and 142 is moved up and down together.

Forging and forming device of the present invention further comprises cutter 160 and 160a, be used for cutting raw material 210, and alternately load raw material 210 in the height moulding hole of the mold 141 that moves up and down and 142, support

144 and 145 is contained in the moulding hole, can support or release raw material 210; Bolt mold (pin ties) 177 and 178 is installed in the moulding hole at position, top and bottom of main body 100, makes by the cam 171 of driving shaft (driven shafts) 170 and 170a and the 172 paired round bars 173 that rotate and 174 and connecting rod 175 and 176

rotational support bolts

144 and 145 respectively.

As shown in Figure 2, when ratchet gear 182 and 182a invar cable connecting rod (steel wire links) 180 and 180a and control module 181 and 181a turn round and off and on a predetermined angular turn, feed roll (feeding rollers) 183 and 183a also rotate against the power of ratchet gear 182 and 182a, and wirerope 200 and 200a the two enter in the embedded hole by feed roll 183 and 183a.If wirerope 200 and 200a are cut cutter 160 and 160a cutting respectively, whenever mold support 130 and the 130a of Moving

jack horse

120 and 120a carry out the bump program, and cut wirerope 200 and 200a just alternately are filled in the moulding hole of mold 141 and 142 by clamp (tongs) 160 and 160a.The such structure of the present invention is to be consistent with relevant technology.

Be referring to figs. 2 and 3 the correlation technique part that is different among the present invention, a helical gear 112 is installed in an end place of final drive shaft 110, and pair of

cams wheel

164 and 165 is installed on asessory shaft 162 and the 162a, the latter accepts to pass the power of coming by helical gear 163 and 163a perpendicular to helical gear 112, so the rear end of cutter 160 and 160a and clamp 161 and 161a are promoted by

cam wheel

164 and 165.

As mentioned above, because the

cam wheel

164 and 165 of operation cutter 160 and 160a and clamp 161 and 161a just merely is installed on asessory shaft 162 and the 162a, if taking other prior art lobe plates and cam wheel to install by a connecting rod compares, cutter 160 and 160a and clamp 161 and 161a can accurately operate also can be manufactured simply, therefore, save manufacturing cost and also improved productivity ratio.

Have again, because rotatablely moving of

cam wheel

164 and 165 is that the straight line that directly changes into cutter 160 and 160a and clamp 161 and 161a moves, with moving of being done in the prior art, (cam the wheel) → straight line that rotatablely moves moves (lobe plate) → straight line and moves (cutter and clamp), come relatively, kinetic equation loss can not take place, and the noise that the cam wheel generates when driving can reduce.

And, as shown in Figures 2 and 3, when cutter 160 and 160a pass cutting raw material 210 gently, in peripheral wall, be formed with keyhole (pin hole), so bolt mold 168 and 168a are just filled in and are come out from keyhole, bolt mold 168 and 168a are filled in and come out to lean on the action of connecting rod 167 and 167a from keyhole, the latter is then operated by another cam wheel 166 and the 166a that are installed in asessory shaft 162 and 162a one end points, the action of bolt mold 168 and 168a is when the raw material 210 that the displacement of clamp folder is moved, and passes raw material 210 gently.In this simultaneously, in connecting rod 167 and 167a, form a hole 169, just can not hinder wirerope 200 and 200a, enter among connecting rod 167 and the 167a by feed roll 183 and 183a.Then, wirerope 200 and 200a can be according to entering among connecting rod 167 and the 167a by hole 169 like that as desired.So bolt mold 168 and 168a are only operated by the rotation of connecting rod 167 and 167a, do not hamper wirerope 200 and 200a.

When cutter 160 and 160a cutting raw material 210, bolt mold 168 and 168a pass raw material 210 gently, and the connecting rod 167 and the 167a of cam wheel 166 and 166a operation rotate.Therefore, cutting raw material 210 is clamped by clamp 161 and 161a, and its end is separated with peripheral wall.The result is, clamped by clamp 161 and 161a when raw material 210, and the moulding hole that moves on to mold 141 and 142 is clashed into, and can keep its stability.Connecting rod 167 and 167a return to original position by an elastic device such as spring with it after driving bolt mold 168 and 168a.

Can operate in order to make the

support pin

144 and 145 in the moulding hole that is installed in mold 141 and 142, in the present invention, as shown in Figure 4 and Figure 5, an auxiliary bolt mold (auxiliary pin die) 190 is installed between the existing top and bottom bolt mold of being located in the main body 100 177 and 178; An auxiliary connecting rod 191 that is used for operating auxiliary bolt mold 190 is installed between existing connecting rod 175 and 176; Auxiliary circle lever arm (auxiliary rod arms) 192 and 193 places the end of

round bar

173 and 174, and the latter can operate existing connecting rod 175 and 176; Auxiliary circle lever arm 192 and 193 turns round together, and has short length.Whenever

round bar

173 and 174 running connecting rods 175 and 176, auxiliary circle lever arm 192 and 193 just forwards auxiliary connecting rod 191 in turn to.

Among aforesaid the present invention, support

144 and 145 position, and be installed in mold support 140 and the top and bottom mold 141 of 140a and 142 moulding hole up and down, and the position of auxiliary bolt mold 190, reaching

bolt mold

177 and 178 will be described in detail, and with reference to figure 5A to Fig. 5 F.

Shown in Fig. 5 A, when left mold support 140a moves up, the support pin 144 in moulding hole and 145 are positioned at the fronts of the bolt mold 177 and the middle auxiliary bolt mold 190 of upper end; When right mold support 140 moves down, the fronts of the auxiliary bolt mold 190 in the middle of the support pin 144 in moulding hole and 145 are positioned at and the bolt mold 178 of lower end.

The flow process of product manufactured according to the present invention will be in explanation down.

Left side mold support 140a is positioned at the summit at an absolute center, and right mold support 140 then is positioned at the end point at an absolute center, so crank axle 111 rotates according to the direction of arrow (direction left) of Fig. 5 A.

Shown in Fig. 5 A, raw material 210 is cut after cutter 160 cutting, is received in the moulding hole, upper end of sky of right mold support 140, moves down.A kind of situation is the front that the raw material 21 of doing elementary bump in moulding hole, lower end is positioned at lower end bolt mold 178, and crank axle 111 is turn right fully (as the direction of arrow), thus right Moving jack horse 120 move right, shown in Fig. 5 B.

Shift to the right when Moving jack horse (carriage) 120, first bump that is positioned at central authorities promotes the moulding hole that a new raw material 210 enters the upper end with mold 131, and clashes into this raw material, finishes elementary forming step.In this simultaneously, when raw material 210 was pushed into, the support pin 144 in the moulding hole moved backward, therefore, and the inwall of the back end in contact main body 100 of support pin 144.Second bump of lower end in moulding hole, lower end inner impact raw material 210, is finished a continuous level forming step with 133 of molds.

Next, shown in Fig. 5 C, if the rotation of crank axle 111 clockwise directions, right Moving jack horse 120 separates with mold support (die holder) 140, and end link 175 was with operation bolt mold 176 under the round bar 174 of cam 172 operations simultaneously promoted.So shown in Fig. 5 C, support pin 145 strikes in the bolt mold 178, the product that promotes moulding goes to the outside of mobile raw material 210 (continuous level shaping raw material) to the moulding hole, lower end of right mold support 140.When round bar 174 in the running, the short auxiliary circle lever arm 193 of length promotes the auxiliary connecting rod 191 in central authorities gently.When auxiliary connecting rod 191 promotes auxiliary bolt mold 190 in central authorities gently, the support pin 144 of the inwall that connects main body 100 is shifted in the rear end of auxiliary bolt mold 190, then, support pin 144 promote forward in the moulding hole elementary shaping raw material 210 (in this moment, elementary shaping raw material is drawn forward out slightly), so raw material 210 separates with main body inner wall, enter fully in the moulding hole.

In above mechanically actuated, a new raw material 210 is cut cutter 160a cutting, inserts in the moulding hole, lower end of left mold support 140a, shown in Fig. 5 C.In this moment elementary bump raw material 210 be received in the moulding hole, upper end.In this case, when left Moving jack horse 120a clashes into step, shown in accompanying drawing five C, first bump that is positioned at central authorities promotes with mold 130 that new raw materials 210 advance, moulding hole, lower end, and clashes into raw material: 110 finish elementary forming step.Second bump in the upper part, is finished continuous level bump step at moulding hole, upper end inner impact raw material 210 with mold 312JA.

In this case, shown in Fig. 5 E, when the rotation of crank axle (crank Shaft) 111 clockwise directions, the movable moving stand 120a in a left side is separated with mold support (die holder) 140a, raw material 210 (continuous level shaping raw material) in the moulding hole, upper end of left mold support (die holder) 140a, just is discharged to outside, moulding hole.In other words, if promote to go up the end link 175 bolt mold 177 of turning round by the round bar 173 of cam 171 operation, just shown in Fig. 5 E, support pin 144 is clashed into by bolt mold 177, the continuous level shaping raw material 210 of promotion in left mold support 140a makes raw material 210 be pushed out the moulding hole.When round bar 173 runnings, the short left redundant round bar arm 192 of length promotes to be positioned at the auxiliary connecting rod 191 of central authorities gently.

When auxiliary connecting rod 191 promoted auxiliary bolt mold 190 in central authorities gently, the support pin 145 of the inwall that connects main body 100 was shifted in the rear end of auxiliary bolt mold 190.Then, support pin 145 promotes the elementary shaping raw material 210 in the moulding hole forward, so the inwall of raw material 210 and main body 100 separates, enters fully in the moulding hole.

By describing up till now, when crank axle 111 rotates one time, make the process of a product respectively at the top and bottom of

mold support

140 and 140a mold 141 and 142 places.Shown in Fig. 5 F, the location of

mold support

140 and 140a is the running by the connecting plate (link plate) 152 of the cam tracks 151 that is connected in driven gear (slave gear) 150, so under this kind pattern, left side mold support 140a can slide along main body 100 inwalls, and be positioned in an absolute centre bottom, and right mold support 140 can slide along main body 100 inwalls, and is positioned in top, an absolute center.Therefore, come in their position just exchange, different with the original state shown in Fig. 5 A.

When mold support 140 and 140a slide and during the top and bottom place-exchange of

mold support

140 and 140a, support

144 and 145 is supporting elementary shaping raw material 210 just separates with main body 100 inwalls, enters then in the moulding hole along main body 100 inwalls.According to this situation, support pin 144 does not contact main body 100 inwalls with 145 first end points, so support pin can not wear and tear or damage.

Shown in Fig. 5 F, when the position of

mold support

140 and 140a changed, new raw material 210 was filled in the moulding hole below the right mold support 140.In this case, if crank axle 111 clockwise directions rotate, in moulding hole, lower end, finish elementary forming step with mold 131 promotion raw materials 210 at first bump of right Moving jack horse 120 central authorities.During this time, second bump that is positioned at upper end position is finished continuous level forming step with the elementary shaping raw material 210 of mold 132 bumps.

Above action is shown in Fig. 5 B, corresponding to the flow process before the position change of mold support 140 and 140a.The latter then is that following mode is carried out, and it is just to change after through the flow process of Fig. 3 C to Fig. 5 E that the position of mold support 140 shown in Fig. 5 F and 140a changes.If these flow processs all successfully repeat, whenever, as long as and the crank axle 111 that rotates together of main drive shaft 110 rotate, from

mold support

140 and 140a respectively one add up to two product and just can create.

Carry as described above, two-way forging and forming device according to the present invention has the following advantages:

Because rotating cam is installed in the helical gear asessory shaft that connects main drive shaft, cutter and clamp move according to the rotation of asessory shaft on a mutual straight line that moves.Power loss can not take place and compares with related art in situation like this, and it moves order and moves for rotation → straight line → and straight line moves, and noise is remarkable must to be reduced.

Secondly, when cutter cut raw material to move a predetermined distance, the situation that clamp is clamped raw material is, bolt mold in the keyhole takes shape in main body, promote raw material gently through connecting rod, so raw material is just stably inserted in the moulding hole of mold support by the cam wheel running that is positioned at the asessory shaft end.

Equally, when the position of mold support exchanged mutually, just separated with main body inner wall the rear end of the support pin that is promoted by elementary shaping raw material, and move up and down.So, prevent that the rear end of support pin and main body inner wall from bumping, therefore can prevent support pin wearing and tearing or damage.

At last, because increase the service time of support pin, change the cycle of support pin and can delay.Therefore, do not change another support pin because the running of shaped device can not be stopped often, productivity ratio can improve.

Foregoing concrete structure only is for example, may not be interpreted as limitation of the present invention.Technology of the present invention can be applied to the instrument and equipment of other types at once.Description of the invention is only to be as example, rather than the scope of restriction patent application.Can have those of ordinary skill in the art and variously to substitute, to revise and to change.

Claims

1, two-way forging and forming device comprises:

Be connected the left and right Moving jack horse that round bar (121,121a) connects (120,120a), the power of its crank axle (111) by accepting to be positioned at final drive shaft (110) central authorities is reciprocating therewith;

Be installed in the mold support (130,130a) of the front end of Moving jack horse (120,120a), and have second bump with mold (132,133), its first bump that is positioned at central authorities is with on the mold (130);

Mold support (140,140a), it is mounted at the two ends of main body (100) and can moves up and down, and opposite with mold support (130,130a), and is provided with mold (141,142) in moulding hole, top and bottom;

Cutter (160,160a) and clamp (161,161a) are used for cutting raw material (210) and raw material are filled in the moulding hole, top and bottom of mold (141,142);

Support pin (144,145) is installed in the moulding hole, is used for supporting raw material (210); And

Bolt mold (pin dies) (177,178) be mounted, it is by pair of cams (171,172), round bar (173,174) and connecting rod (175,176) operate support pin (144 respectively, 145), so whenever when ratchet gear (182,182a) by wirerope connecting rod (180,180a) and control module (181,181a) turn round off and on and make feed roll (183,183a) with former expect fill the cutter place, as long as mold support (130, mold 130a) left to right bump raw material once, a continuous level shaped article is just respectively from mold support (140,140a) manufactured come out

Wherein, a helical gear (112) is installed in an end of main drive shaft (110), pair of cams wheel (164,165) be installed in asessory shaft (162,162a), they are the helical gear (163 of (112) from Vertical Meshing in helical gear, 164) accept power, cutter (160, rear end 160a) and clamp (161,161a) by cam wheel (164,165) promote, an auxiliary bolt mold simultaneously (190) is installed in connecting rod (175 with an auxiliary connecting rod (191), 176) with top and bottom bolt mold (177,178) between, can be received in the rear end operation support pin (144 at place at a new raw material, 145), so auxiliary bolt mold (190) is by auxiliary circle lever arm (192,193) replace the support pin that promotes contact main body (100) inwall, support pin is separated with inwall, auxiliary circle lever arm (192,193) be installed on operator link (175,176) round bar (173,174) end forms a monolithic entity mutually in short distance.

2, two-way forging and forming device according to claim 1, it is characterized in that, bolt mold (168, be to be installed in cutter (160 movably 168a), 160a) in the peripheral wall that cutting and promotion raw material (210) are located, so bolt mold (168,168a) promote raw material, make clamp (161,161a) can under a situation slightly forward, clamp raw material (210), while connecting rod (167, be to be rotatably mounted to be fixed on asessory shaft (162 167a), cam wheel (166 162a), 166a), so bolt mold and connecting rod (167,167a) connect, and with cam wheel (166, rotation unanimity 166a).