阅读说明：本技术 一种金属加工厂用于高端装备制造的金属轴开槽孔设备 (Metal shaft grooving device for high-end equipment manufacturing in metal processing plant ) 是由 温伟扬 于 2021-08-25 设计创作，主要内容包括：本发明涉及一种金属轴开槽孔设备,尤其涉及一种金属加工厂用于高端装备制造的金属轴开槽孔设备。本发明的技术问题是：提供一种能够实现夹紧固定金属和自动开槽的金属加工厂用于高端装备制造的金属轴开槽孔设备。一种金属加工厂用于高端装备制造的金属轴开槽孔设备,包括有底板、放置座、固定导轨架、滑动导轨架、连接座和电动钻孔机,底板一侧设有放置座,底板顶部四侧均设有固定导轨架,固定导轨架之间滑动式连接有滑动导轨架,滑动导轨架上滑动式连接有连接座,连接座上设有电动钻孔机。通过调节机构和升降机构之间的配合,可以调节电动钻孔机的位置,对金属轴不同的部位进行开槽。(The invention relates to a metal shaft slotting device, in particular to a metal shaft slotting device for manufacturing high-end equipment in a metal processing factory. The technical problem of the invention is that: the metal shaft slotting device for manufacturing high-end equipment is provided with a metal shaft slotting device which can clamp and fix metal and realize automatic slotting in a metal processing factory. The utility model provides a metalwork factory is used for high-end equipment to make metal axle fluting hole equipment, including the bottom plate, place the seat, fixed guide frame, sliding guide frame, connecting seat and electric drilling machine, bottom plate one side is equipped with places the seat, and four sides at bottom plate top all are equipped with fixed guide frame, and slidingtype is connected with sliding guide frame between the fixed guide frame, and the sliding type is connected with the connecting seat on the sliding guide frame, is equipped with electric drilling machine on the connecting seat. Through the cooperation between adjustment mechanism and the elevating system, can adjust the position of electric drill, carry out the fluting to the different positions of metal axle.)

1. The utility model provides a metal axle fluting hole equipment that metalworking factory is used for high-end equipment to make, which is characterized by, including bottom plate (1), place seat (2), fixed guide frame (3), sliding guide frame (4), connecting seat (5), electric drill (6), adjustment mechanism (7) and elevating system (8), bottom plate (1) one side is equipped with places seat (2), four sides at bottom plate (1) top all are equipped with fixed guide frame (3), sliding connection has sliding guide frame (4) between fixed guide frame (3), sliding connection has connecting seat (5) on sliding guide frame (4), be equipped with electric drill (6) on connecting seat (5), be equipped with adjustment mechanism (7) on sliding guide frame (4), be equipped with elevating system (8) between bottom plate (1) and sliding guide frame (4).

2. The metal shaft grooving device for high-end equipment manufacturing in a metal processing plant according to claim 1, wherein the adjusting mechanism (7) comprises a first positioning rod (71), a sliding plate (72), a first return spring (73), a clamping block (74) and a hand lever (75), two first positioning rods (71) are slidably connected to two sides of the sliding guide frame (4), the sliding plate (72) is slidably connected between the two first positioning rods (71), the first return spring (73) is arranged between two sides of the sliding plate (72) and the first positioning rods (71), the hand lever (75) is arranged on the outer side of the sliding plate (72), and the clamping block (74) is arranged on the inner side of the sliding plate (72).

3. The metal shaft grooving device for high-end equipment manufacturing in a metal processing plant according to claim 2, wherein the lifting mechanism (8) comprises a first fixing frame (81), an air cylinder (82), a connecting frame (83) and a second return spring (84), the first fixing frame (81) is connected between two sides of the bottom plate (1), the air cylinder (82) is arranged in the middle of the first fixing frame (81), the connecting frame (83) is arranged between the bottom of the air cylinder (82) and the sliding guide rail frame (4), and the second return spring (84) is arranged between two sides of the top of the connecting frame (83) and the first fixing frame (81).

4. The metal shaft grooving device for high-end equipment manufacturing in a metal processing plant according to claim 3, characterized by further comprising a clamping mechanism (9), wherein the clamping mechanism (9) comprises a guide rail seat (91), a sliding connection block (92), a clamping block (93), a third return spring (94), a second positioning rod (95), a support spring (96) and a pressing block (97), the guide rail seat (91) is arranged on both sides of the top of the bottom plate (1), the sliding connection block (92) is connected to the guide rail seat (91) in a sliding manner, the third return spring (94) is arranged between the bottom of the sliding connection block (92) and the guide rail seat (91) on the same side, the clamping block (93) is arranged on the inner side of the sliding connection block (92), the second positioning rod (95) is arranged on the top of the sliding connection block (92), the pressing block (97) is connected to the second positioning rod (95) in a sliding manner, the pressing block (97) is connected with the sliding guide rail frame (4), and supporting springs (96) are arranged between the bottom of the pressing block (97) and the sliding connecting block (92) on the same side.

5. The metal shaft slotting device for manufacturing high-end equipment in a metal processing plant according to claim 4, further comprising a feeding mechanism (10), wherein the feeding mechanism (10) comprises a second fixing frame (101), a storage box (102), a guide plate (103), a fixed sleeve ring (104), a material shifting wheel (105), an elastic clamping pin (106) and a hand-operated disc (107), the second fixing frame (101) is arranged on each of two sides of the rear portion of the bottom plate (1), the storage box (102) is connected between the tops of the second fixing frames (101), the guide plate (103) is arranged on one side of the front portion of the storage box (102), the fixed sleeve ring (104) is connected on each of two sides of the front portion of the storage box (102), the material shifting wheel (105) is rotatably connected between the fixed sleeve rings (104), the elastic clamping pin (106) is arranged on each of the tops of the fixed sleeve rings (104), and a first spring is arranged between the lower portion of the elastic clamping pin (106) and the fixed sleeve ring (104) on the same side, hand-operated discs (107) are arranged on both sides of the material poking wheel (105).

6. The metal shaft grooving device for high-end equipment manufacturing in a metal processing plant according to claim 5, characterized by further comprising a linkage mechanism (11), wherein the linkage mechanism (11) comprises an installation frame (111), a transmission shaft (112), a transmission belt set (113), a connection shaft (114), a ratchet wheel (115), a third positioning rod (116), an L-shaped frame (117), a fourth reset spring (118) and an elastic ratchet block (119), the installation frame (111) is arranged on each of two sides of the storage box (102), the transmission shaft (112) is rotatably connected to the installation frame (111), the connection shaft (114) is arranged on each of the outer sides of the hand-operated disc (107), the transmission belt set (113) is arranged between the connection shaft (114) and the transmission shaft (112) on the same side, the ratchet wheel (115) is arranged on each of the inner sides of the transmission shafts (112), the third positioning rod (116) is slidably connected to one side of the installation frame (111), the top of the third positioning rod (116) is provided with an L-shaped frame (117), a fourth reset spring (118) is arranged between the bottom of the L-shaped frame (117) and the mounting frame (111) on the same side, the L-shaped frame (117) is connected with an elastic ratchet block (119) in a sliding mode, and a second spring is arranged between one side of the elastic ratchet block (119) and the L-shaped frame (117) on the same side.

7. A metal axle notching apparatus for high end equipment fabrication in a metal processing plant according to claim 6, the blanking mechanism (12) comprises a top block frame (121), a connecting rod (122), a guide sleeve (123), a pull rod frame (124), a guide seat (125), a fixing block (126) and a fifth reset spring (127), the top block frame (121) is connected onto a guide plate (103) in a sliding mode, the connecting rod (122) is arranged on two sides of the top block frame (121), the guide sleeve (123) is connected onto the connecting rod (122) in a sliding mode, the pull rod frame (124) is connected between one sides of the guide sleeve (123), the guide seat (125) is arranged on two sides of the front portion of a bottom plate (1), the guide seat (125) is connected with the pull rod frame (124) in a sliding mode, the fixing block (126) is arranged on two sides of the pull rod frame (124), and the fifth reset spring (127) is arranged between the fixing block (126) and the guide seat (125) on the same side.

8. A metal axle notching apparatus for high end equipment manufacturing in a metal processing plant, according to claim 7, characterized in that the top block shelf (121) is rectangular.

Technical Field

The invention relates to a metal shaft slotting device, in particular to a metal shaft slotting device for manufacturing high-end equipment in a metal processing factory.

Background

Present metal drilling equipment in the market is not convenient for fix the metal when using, so when driling to the metal, the situation of rocking can appear in the metal to lead to the drilling equipment to appear the situation that drilling effect is not good when driling to the metal, most metal drilling equipment does not have the fluting function in addition, has certain limitation when in-service use.

Therefore, in order to achieve a better hole forming effect, a metal shaft slotting device which can clamp and fix metal and realize automatic slotting and is used for manufacturing high-end equipment is developed at present.

Disclosure of Invention

In order to overcome the defects that the metal can shake during the slotting and the fixing is difficult to realize, the invention has the technical problems that: the metal shaft slotting device for manufacturing high-end equipment is provided with a metal shaft slotting device which can clamp and fix metal and realize automatic slotting in a metal processing factory.

The utility model provides a metalwork factory is used for high-end metal axle fluting hole equipment of making of equipping, comprising a base plate, place the seat, fixed guide frame, sliding guide frame, the connecting seat, electronic drilling machine, adjustment mechanism and elevating system, bottom plate one side is equipped with places the seat, four sides at bottom plate top all are equipped with fixed guide frame, slidingtype connection has sliding guide frame between the fixed guide frame, sliding connection has the connecting seat on the sliding guide frame, be equipped with electronic drilling machine on the connecting seat, be equipped with adjustment mechanism on the sliding guide frame, be equipped with elevating system between bottom plate and the sliding guide frame.

Further explaining, adjustment mechanism includes first locating lever, sliding plate, first reset spring, fixture block and hand lever, and the equal slidingtype in sliding guide rail frame both sides is connected with two first locating levers, and the equal slidingtype is connected with the sliding plate between two first locating levers, all is equipped with first reset spring between sliding plate both sides and the first locating lever, and the sliding plate outside all is equipped with the hand lever, and the sliding plate inboard all is equipped with the fixture block.

Further, the lifting mechanism comprises a first fixing frame, an air cylinder, a connecting frame and a second reset spring, the first fixing frame is connected between the two sides of the bottom plate, the air cylinder is arranged in the middle of the first fixing frame, the connecting frame is arranged between the bottom of the air cylinder and the sliding guide rail frame, and the second reset spring is arranged between the two sides of the top of the connecting frame and the first fixing frame.

Further explain, still including clamping mechanism, clamping mechanism is including the guide rail seat, sliding connection piece, the clamp splice, third reset spring, the second locating lever, supporting spring and briquetting, bottom plate top both sides all are equipped with the guide rail seat, all sliding connection has sliding connection piece on the guide rail seat, all be equipped with third reset spring between the guide rail seat of sliding connection piece bottom and homonymy, the sliding connection inboard all is equipped with the clamp splice, the sliding connection piece top all is equipped with the second locating lever, all sliding connection has the briquetting on the second locating lever, briquetting and sliding connection put up the connection, all be equipped with supporting spring between the sliding connection piece of briquetting bottom and homonymy.

Further explain, still including the feed supplement mechanism, the feed supplement mechanism is including the second mount, the storage box, the deflector, the fixed lantern ring, the kickoff wheel, elasticity bayonet lock and hand rocking disc, bottom plate rear portion both sides all are equipped with the second mount, be connected with the storage box between the second mount top, anterior one side of storage box is equipped with the deflector, the anterior both sides of storage box all are connected with the fixed lantern ring, the rotary type is connected with the kickoff wheel between the fixed lantern ring, fixed lantern ring top all is equipped with the elasticity bayonet lock, all be equipped with first spring between the fixed lantern ring of elasticity bayonet lock lower part and homonymy, the kickoff wheel both sides all are equipped with the hand rocking disc.

Further explain, still including link gear, link gear is including the mounting bracket, the transmission shaft, transmission belt group, the connecting axle, the ratchet, the third locating lever, L type frame, fourth reset spring and elasticity ratchet piece, the storage box both sides all are equipped with the mounting bracket, equal rotary type is connected with the transmission shaft on the mounting bracket, the hand dish outside all is equipped with the connecting axle, all be equipped with transmission belt group between the transmission shaft of connecting axle and homonymy, the transmission shaft inboard all is equipped with the ratchet, the equal slidingtype in mounting bracket one side is connected with the third locating lever, third locating lever top all is equipped with L type frame, all be equipped with fourth reset spring between the mounting bracket of L type frame bottom and homonymy, all slidingtype is connected with elasticity ratchet piece on the L type frame, all be equipped with the second spring between the L type frame of elasticity piece ratchet one side and homonymy.

Further explanation, still including unloading mechanism, unloading mechanism is including ejector pad frame, the connecting rod, the uide bushing, the pull rod frame, the guide holder, fixed block and fifth reset spring, sliding connection has ejector pad frame on the deflector, ejector pad frame both sides all are equipped with the connecting rod, all sliding connection has the uide bushing on the connecting rod, be connected with the pull rod frame between uide bushing one side, the anterior both sides of bottom plate all are equipped with the uide bushing, guide holder and pull rod frame sliding connection, pull rod frame both sides all are equipped with the fixed block, all be equipped with fifth reset spring between the guide holder of fixed block and homonymy.

Further, the top block frame is rectangular.

The invention has the beneficial effects that: 1. through the cooperation between adjustment mechanism and the elevating system, can adjust the position of electric drill, carry out the fluting to the different positions of metal axle.

2. Through the cooperation between feed supplement mechanism and the clamping mechanism, can realize interval feed supplement, at the fluting in-process simultaneously, can press from both sides tightly the metal axle to the metal axle shifts.

3. Through the cooperation between link gear and the unloading mechanism, can realize the effect of interval automatic discharging and manual unloading.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the adjusting mechanism of the present invention.

Fig. 3 is a schematic perspective view of the lifting mechanism of the present invention.

Fig. 4 is a schematic perspective view of the clamping mechanism of the present invention.

FIG. 5 is a schematic perspective view of the feeding mechanism of the present invention.

Fig. 6 is a schematic perspective view of the linkage mechanism of the present invention.

Fig. 7 is a schematic perspective view of the blanking mechanism of the present invention.

Fig. 8 is an enlarged view of part a of the present invention.

Reference numbers in the drawings: 1: bottom plate, 2: placing seat, 3: fixed guide rail frame, 4: sliding guide rail bracket, 5: connecting seat, 6: electric drill, 7: adjustment mechanism, 71: first positioning rod, 72: sliding plate, 73: first return spring, 74: a latch, 75: hand lever, 8: elevating system, 81: first mount, 82: cylinder, 83: connecting frame, 84: second return spring, 9: clamping mechanism, 91: rail seat, 92: sliding connection block, 93: clamping block, 94: third return spring, 95: second positioning rod, 96: support spring, 97: briquetting, 10: feed supplement mechanism, 101: second mount, 102: storage case, 103: guide plate, 104: fixing collar, 105: kick-off wheel, 106: resilient bayonet, 107: hand-operated disc, 11: linkage, 111: mounting frame, 112: drive shaft, 113: drive belt set, 114: connecting shaft, 115: ratchet, 116: third positioning rod, 117: l-shaped frame, 118: fourth return spring, 119: elastic ratchet block, 12: unloading mechanism, 121: top block rack, 122: connecting rod, 123: guide sleeve, 124: tie bar frame, 125: guide holder, 126: fixed block, 127: fifth return spring, 13: a metal shaft.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.

Example 1

The utility model provides a metal axle fluting equipment that metalworking factory is used for high-end equipment to make, as shown in fig. 1-3, including bottom plate 1, place seat 2, fixed guide rail frame 3, sliding guide rail frame 4, connecting seat 5, electric drilling machine 6, adjustment mechanism 7 and elevating system 8, be equipped with in the middle of the bottom plate 1 and place seat 2, four sides at 1 top of bottom plate all are equipped with fixed guide rail frame 3, slidingtype is connected with sliding guide rail frame 4 between the fixed guide rail frame 3, sliding connection has connecting seat 5 on the sliding guide rail frame 4, be equipped with electric drilling machine 6 on the connecting seat 5, be equipped with adjustment mechanism 7 on the sliding guide rail frame 4, be equipped with elevating system 8 between bottom plate 1 and the sliding guide rail frame 4.

The adjusting mechanism 7 comprises a first positioning rod 71, a sliding plate 72, a first return spring 73, a clamping block 74 and a hand lever 75, wherein the front side and the rear side of the sliding guide rail frame 4 are both connected with the two first positioning rods 71 in a sliding manner, the sliding plate 72 is connected between the two first positioning rods 71 in a sliding manner, the first return spring 73 is arranged between the two sides of the sliding plate 72 and the first positioning rods 71, the hand lever 75 is arranged on the outer side of the sliding plate 72, and the clamping block 74 is arranged on the inner side of the sliding plate 72.

The lifting mechanism 8 comprises a first fixing frame 81, a cylinder 82, a connecting frame 83 and a second reset spring 84, the first fixing frame 81 is connected between the left side and the right side of the bottom plate 1, the cylinder 82 is arranged in the middle of the first fixing frame 81, the connecting frame 83 is arranged between the bottom of the cylinder 82 and the sliding guide rail frame 4, and the second reset spring 84 is arranged between the left side and the right side of the top of the connecting frame 83 and the first fixing frame 81.

When people need to groove a groove hole on the metal shaft 13, firstly, the metal shaft 13 is placed on the placing seat 2, people need to groove a groove on a certain position on the metal shaft 13, the position of the electric drilling machine 6 is adjusted, the hand lever 75 and the sliding plate 72 are manually moved outwards to drive the clamping block 74 to move outwards, the first return spring 73 is compressed to separate the clamping block 74 from the connecting seat 5, so that the connecting seat 5 and the electric drilling machine 6 can be moved leftwards and rightwards, the sliding plate 72 and the parts above are moved simultaneously, so that the connecting seat 5, the electric drilling machine 6, the sliding plate 72 and the parts above are moved to the specified positions, the hand lever 75 is loosened, the hand lever 75, the sliding plate 72 and the clamping block 74 are moved inwards to return under the action of the first return spring 73, so that the clamping block 74 clamps the connecting seat 5, the electric drilling machine 6 is started, the control cylinder 82 is extended to drive the connecting frame 83, the sliding guide rail frame 4 and the parts above to move downwards, the second return spring 84 is stretched to make the electric drilling machine 6 perform slotting on the metal shaft 13, after completion, the control cylinder 82 is shortened, meanwhile, under the action of the second return spring 84, the connecting frame 83, the sliding guide rail frame 4 and the above components are driven to move upwards to be reset, then, the electric drilling machine 6 is closed, and the metal shaft 13 is taken out.

Example 2

On the basis of embodiment 1, as shown in fig. 4 to 8, the device further comprises a clamping mechanism 9, the clamping mechanism 9 comprises a guide rail seat 91, a sliding connection block 92, a clamping block 93, a third return spring 94, a second positioning rod 95, a supporting spring 96 and a pressing block 97, the guide rail seat 91 is arranged on the left side and the right side of the top of the front side of the bottom plate 1, the sliding connection block 92 is connected to the guide rail seat 91 in a sliding manner, the third return spring 94 is arranged between the bottom of the sliding connection block 92 and the guide rail seat 91 on the same side, the clamping block 93 is arranged on the inner side of the sliding connection block 92, the second positioning rod 95 is arranged on the top of the sliding connection block 92, the pressing block 97 is connected to the sliding guide rail frame 4, and the supporting spring 96 is arranged between the bottom of the pressing block 97 and the sliding connection block 92 on the same side.

The sliding guide rail frame 4 moves downwards to drive the pressing block 97 to move downwards, so that the supporting spring 96, the second positioning rod 95 and the sliding connection block 92 move downwards, the third return spring 94 is compressed, the clamping block 93 moves downwards to clamp the metal shaft 13, then the pressing block 97 continues to move downwards, the supporting spring 96 is compressed, the sliding guide rail frame 4 moves upwards to drive the pressing block 97 to move upwards, and the sliding connection block 92 and the clamping block 93 are driven to move and reset under the action of the third return spring 94 and the supporting spring 96.

Still including feed supplement mechanism 10, feed supplement mechanism 10 is including second mount 101, storage box 102, deflector 103, the fixed lantern ring 104, kick-off wheel 105, elastic bayonet lock 106 and hand dish 107, the 1 rear portion left and right sides of bottom plate all is equipped with second mount 101, be connected with storage box 102 between the second mount 101 top, the anterior downside of storage box 102 is equipped with deflector 103, the anterior left and right sides of storage box 102 all is connected with the fixed lantern ring 104, the rotary type is connected with kick-off wheel 105 between the fixed lantern ring 104, fixed lantern ring 104 top all is equipped with elastic bayonet lock 106, all be equipped with first spring between the fixed lantern ring 104 of elastic bayonet lock 106 lower part and homonymy, the kick-off wheel 105 left and right sides all is equipped with hand dish 107.

When people need to supplement materials, the metal shaft 13 is placed on the storage box 102, then the hand-cranking plate 107 is manually rotated to drive the material stirring wheel 105 to rotate, so that the elastic clamping pin 106 is pushed upwards, the first spring is compressed, when one metal shaft 13 is moved forwards, the elastic clamping pin 106 is just in contact with a groove formed in the material stirring wheel 105, and under the action of the first spring, the elastic clamping pin 106 moves downwards to clamp the material stirring wheel 105, so that the materials can be supplemented.

The material storage box is characterized by further comprising a linkage mechanism 11, the linkage mechanism 11 comprises an installation frame 111, a transmission shaft 112, a transmission belt set 113, a connection shaft 114, a ratchet wheel 115, a third positioning rod 116, an L-shaped frame 117, a fourth reset spring 118 and an elastic ratchet block 119, the installation frame 111 is arranged on the left side and the right side of the upper portion of the front side of the material storage box 102, the transmission shaft 112 is rotatably connected to the installation frame 111, the connection shaft 114 is arranged on the outer side of the hand-operated disc 107, the transmission belt set 113 is arranged between the connection shaft 114 and the transmission shaft 112 on the same side, the transmission belt set 113 is composed of two belt pulleys and a belt, the two belt pulleys are respectively connected to the connection shaft 114 and the transmission shaft 112, the belt is wound between the two belt pulleys, the ratchet wheel 115 is arranged on the inner side of the transmission shaft 112, the third positioning rod 116 is slidably connected to the front side of the installation frame 111, the L-shaped frame 117 is arranged on the top, the fourth reset spring 118 is arranged between the bottom of the L-shaped frame 117 and the installation frame 111 on the same side, the L-shaped frames 117 are all connected with elastic ratchet blocks 119 in a sliding mode, and springs are arranged between the front sides of the elastic ratchet blocks 119 and the L-shaped frames 117 on the same side.

When the sliding guide rail frame 4 moves downwards, under the action of the fourth return spring 118, the L-shaped frame 117, the elastic ratchet block 119 and the second spring are driven to move downwards, so that the elastic ratchet block 119 continuously moves back and forth, the second spring is adaptively deformed, the sliding guide rail frame 4 moves upwards to drive the L-shaped frame 117, the elastic ratchet block 119 and the second spring to move upwards, the fourth return spring 118 is stretched, so that the ratchet 115, the transmission shaft 112 and the transmission belt set 113 rotate, and the material shifting wheel 105 rotates, so that the metal shaft 13 slides downwards to perform feeding.

The blanking mechanism 12 comprises a top block frame 121, a connecting rod 122, a guide sleeve 123, a pull rod frame 124, a guide seat 125, a fixing block 126 and a fifth reset spring 127, the top block frame 121 is connected to the guide plate 103 in a sliding mode, the connecting rod 122 is arranged on each of the left side and the right side of the top block frame 121, the guide sleeve 123 is connected to each of the connecting rods 122 in a sliding mode, the pull rod frame 124 is connected between the front sides of the guide sleeves 123, the guide seats 125 are arranged on each of the left side and the right side of the front portion of the bottom plate 1, the guide seats 125 are connected with the pull rod frame 124 in a sliding mode, the fixing blocks 126 are arranged on each of the left side and the right side of the pull rod frame 124, and the fifth reset spring 127 is arranged between the fixing blocks 126 and the guide seats 125 on the same side.

When blanking is needed, the pull rod frame 124 moves forward to drive the connecting rod 122 and the top block frame 121 to move upwards, the metal shaft 13 is ejected out, the fifth return spring 127 is compressed, then the handle is released, and the pull rod frame 124 is driven to move backwards to be reset under the action of the fifth return spring 127, so that the connecting rod 122 and the top block frame 121 are driven to move downwards to be reset.

The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.