CN113148333A

CN113148333A - Reciprocating type packing machine

Info

Publication number: CN113148333A
Application number: CN202110510230.2A
Authority: CN
Inventors: 王国宇
Original assignee: Zhengzhou Yongyida Machinery Equipment Co ltd
Current assignee: Zhengzhou Yongyida Machinery Equipment Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-07-23
Anticipated expiration: 2041-05-11
Also published as: CN113148333B

Abstract

The invention belongs to the technical field of packaging machines, and particularly relates to a reciprocating type packaging machine which comprises a rack, wherein a knife box is connected to the rack, and the knife box is connected with a first reciprocating driving device; the rack is also connected with a conveying device matched with the knife box; the cutter box comprises an upper cutter beam which is horizontally arranged, a lower cutter beam which is parallel to the upper cutter beam is arranged right below the upper cutter beam, and the upper cutter beam and the lower cutter beam are also connected with a second reciprocating driving device; the bottom end of the upper knife beam is connected with an upper knife holder, and the top end of the lower knife beam is connected with a lower knife holder; the invention provides an easily adjustable and wear-resistant reciprocating packaging machine.

Description

Reciprocating type packing machine

Technical Field

The invention belongs to the technical field of packaging machines, and particularly relates to a reciprocating type packaging machine.

Background

Most of the existing packing machines adopt belt type reciprocating, knife boxes of the packing machines are mostly driven by belts, and the belt driving can cause large load of a reciprocating motor and low transmission efficiency; the mechanical reciprocating structure of some packaging machines adopts a shaping machine structure, the mechanical reciprocating stroke of the shaping machine structure is limited, a cam needs to be replaced, and the mechanical reciprocating structure is not easy to synchronize with a packaging film; the knife box fixing technology of the existing packaging machine causes the knife box to be too heavy and clumsy to move, and the knife box is lifted manually and is inconvenient to adjust; the existing packaging machine has mixed structure, poor stability and difficult maintenance; the packing machine needs a spring to buffer the sealing cutter seat, the buffer spring of the existing packing machine is arranged between the cutter seat and the cutter beam, the inertia of the cutter seat is small, the pressure is provided by the spring, and the pressure is unstable; the sealing tool apron needs a sliding shaft for buffering, the existing sliding shaft is a copper sleeve sliding shaft and is provided with an oil-free bushing, and the defects of low precision, large resistance, large noise, easy blocking and the like are presented, so that the end sealing quality is influenced.

Disclosure of Invention

The invention aims to provide a reciprocating type packaging machine which is easy to adjust, stable in sealing pressure and resistant to abrasion.

Based on the purpose, the invention adopts the following technical scheme:

a reciprocating type packing machine comprises a frame, wherein a knife box is connected to the frame, and the knife box is connected with a first reciprocating driving device; the rack is also connected with a conveying device matched with the knife box; the cutter box comprises an upper cutter beam which is horizontally arranged, a lower cutter beam which is parallel to the upper cutter beam is arranged right below the upper cutter beam, and the upper cutter beam and the lower cutter beam are also connected with a second reciprocating driving device; the bottom end of the upper knife beam is connected with an upper knife holder, and the top end of the lower knife beam is connected with a lower knife holder.

Further, the rack comprises a fixing plate which is vertically arranged, and a vertical first sliding rail is arranged on the fixing plate; a first sliding block is arranged on the first sliding rail, a vertical first side plate is fixedly connected to the first sliding block, and the first side plate moves along the first sliding rail; the first side plate is connected with a lifting device; the lifting device comprises a first motor fixedly connected to the fixing plate, the first motor is connected with a first lead screw vertically arranged, a connecting block is connected to the first lead screw in a threaded mode, and the connecting block is fixedly connected with the cutter box.

Further, the first reciprocating driving device comprises a reciprocating fixed plate fixedly connected with the first side plate, a reciprocating swing mechanism connected with the cutter box is arranged on the reciprocating fixed plate, the reciprocating swing mechanism comprises an adjustable reciprocating plate horizontally arranged, and the adjustable reciprocating plate is of a long plate structure; the middle part of the adjustable reciprocating plate is hinged with a vertical fixed shaft; the adjustable reciprocating plate is also provided with a first sliding chute and a second sliding chute which are positioned at two sides of the fixed shaft; the length directions of the first sliding chute and the second sliding chute are consistent with the length direction of the adjustable reciprocating plate, and the first sliding chute and the second sliding chute are arranged symmetrically about the center of the fixed shaft; a second sliding block is arranged in the first sliding groove and connected with a reciprocating mechanism; a third sliding block is arranged in the second sliding groove and connected with the knife box.

Furthermore, the second sliding block and the third sliding block are both bearings, the second sliding block slides along the first sliding groove, and the third sliding block slides along the second sliding groove; the third sliding block is connected with a knife box plate, and the knife box plate is connected to the bottom end of the knife box; the first reciprocating driving device is arranged below the knife box; the first side plate is fixedly connected with a fifth horizontal sliding rail, the knife box is connected onto the fifth sliding rail, the knife box is fixedly connected with an eighth sliding block, the eighth sliding block is connected onto the fifth sliding rail, and the knife box extends the fifth sliding rail to move.

Further, the reciprocating mechanism comprises a shaft cam, the shaft cam comprises a rotating shaft, and the rotating shaft is connected with a second motor; the rotating shaft is also provided with a reciprocating groove which is of a spiral structure and is of a closed annular structure; a fourth sliding block is arranged in the reciprocating groove, a fifth sliding block is connected to the fourth sliding block, the fifth sliding block is connected with a horizontal second sliding rail, and the second sliding rail is fixedly connected to the reciprocating fixing plate; the fifth slide block is connected with the second slide block; a first connecting plate is fixedly connected to the fifth sliding block, the first connecting plate is connected with the second sliding block, and the second motor is fixedly connected to the reciprocating fixed plate; the reciprocating mechanism is arranged below the adjustable reciprocating plate, and the fourth sliding block is a bearing.

Further, the fixed shaft is connected with a position adjusting mechanism, the position adjusting mechanism comprises an adjusting plate connected with the bottom end of the fixed shaft, a threaded hole is formed in the adjusting plate, a second lead screw is screwed in the threaded hole and is perpendicular to the second slide rail, and the second lead screw is connected with a third motor; the second screw rod is connected with a first driven gear, the first driven gear is in threaded connection with a first driving gear, and the first driving gear is connected with a third motor; the adjusting plate is horizontally arranged, and the bottom end of the adjusting plate is connected with a sixth sliding block; the bottom end of the sixth sliding block is connected with a horizontally arranged third sliding rail, and the third sliding rail is parallel to the second screw rod; the position adjusting mechanism further comprises an anti-moving cylinder matched with the first driving gear, and after the position of the first driving gear is adjusted, the anti-moving cylinder extends out to abut against the first driving gear to fix the first driving gear.

Further, the knife box comprises a pair of second side plates which are symmetrically arranged, and any one of the second side plates is vertically arranged; a vertical fourth sliding rail is fixedly connected to any one second side plate, two ends of the upper cutter beam and two ends of the lower cutter beam are connected to the fourth sliding rail, and the upper cutter beam and the lower cutter beam move along the fourth sliding rail; the upper knife beam and the lower knife beam are fixedly connected with seventh sliding blocks, and the seventh sliding blocks are connected to the fourth sliding rails; two first through holes are formed in any one second side plate, two ends of the upper knife beam are fixedly connected with a pair of upper knife beam connecting shafts, and two ends of the lower knife beam are fixedly connected with a pair of lower knife beam connecting shafts; the first connecting rod connecting shaft, the second connecting rod connecting shaft, the upper knife beam connecting shaft and the lower knife beam connecting shaft are all perpendicular to the second side plate, and the upper knife beam connecting shaft and the lower knife beam connecting shaft are all arranged in the first through hole.

Furthermore, the second reciprocating driving device comprises a driving main shaft connected to the two second side plates, and the driving main shaft is arranged right below the lower cutter beam and parallel to the lower cutter beam; both ends of the driving main shaft are connected with bearing mechanisms, and the driving main shaft is connected with a fourth motor; a second driven gear is arranged on the driving main shaft, a second driving gear is meshed and connected below the second driven gear, and the second driving gear is connected with a fourth motor; two ends of the driving main shaft are connected with a pair of first crank slide block mechanisms; the pair of first crank sliding block mechanisms comprise a pair of first connecting rods connected to two ends of the driving main shaft, and any one first connecting rod is hinged with a first connecting rod connecting shaft parallel to the driving main shaft; a pair of second connecting rods is hinged to the pair of first connecting rod connecting shafts, and one end, far away from the first connecting rod connecting shafts, of any second connecting rod is hinged to the lower cutter beam connecting shaft.

Furthermore, the second reciprocating driving device also comprises a pair of second slider-crank mechanisms connected to the pair of first connecting rod connecting shafts, each second slider-crank mechanism comprises a third connecting rod fixedly connected with the first connecting rod connecting shaft, one end of each third connecting rod, which is far away from the first connecting rod connecting shaft, is hinged with a fourth connecting rod, each third connecting rod is hinged with a second connecting rod connecting shaft, and each second connecting rod connecting shaft is hinged with a fourth connecting rod; one end of any fourth connecting rod, which is far away from the third connecting rod, is hinged on the upper tool beam connecting shaft; the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are all parallel to the second side plate, and the pair of first slider-crank mechanisms, the pair of second slider-crank mechanisms and the pair of side plates are all symmetrically arranged; the first crank block mechanism and the second crank block mechanism are arranged on one side, away from the upper knife beam and the lower knife beam, of the second side plate.

Furthermore, any fourth connecting rod comprises an upper connecting section hinged with the upper knife beam connecting shaft and a lower connecting section hinged with the second connecting rod connecting shaft, and a buffer mechanism is arranged between any upper connecting section and the lower connecting section; any upper connecting section is positioned above the lower connecting section, the top end of any upper connecting section is hinged with the upper knife beam connecting shaft, and the bottom end of any lower connecting section is hinged with the second connecting rod connecting shaft; any buffer mechanism comprises buffer bearing steel fixedly connected with the bottom end of the upper connecting section, and any buffer bearing steel is of a cylindrical structure parallel to the lower connecting section; the top of arbitrary lower linkage segment has all linked firmly linear bearing, and arbitrary linear bearing all overlaps and establish on buffering bearing steel, and the bottom of arbitrary buffering bearing steel has all linked firmly the stopper, all is provided with buffer spring between arbitrary stopper and the linear bearing, and linear bearing and stopper are connected respectively to buffer spring's both ends.

Furthermore, the reciprocating fixed plate is of an L-shaped structure and comprises a second connecting plate parallel to the first side plate, the second connecting plate is fixedly connected with the first side plate, the reciprocating fixed plate further comprises a third connecting plate fixedly connected with the second connecting plate, the third connecting plate is horizontally arranged at the bottom end of the second connecting plate, and the second connecting plate is arranged below the adjustable reciprocating plate; the second slide rail links firmly on the second connecting plate, and the second motor all links firmly on the top of third connecting plate with the third slide rail, and the third motor links firmly in the bottom of third connecting plate, and the anti-moving cylinder is connected on the third connecting plate.

Further, the bearing mechanism comprises cylindrical roller bearings or needle roller bearings sleeved at two ends of the driving main shaft.

Furthermore, the bearing mechanism can also be set as a double-bearing mechanism, the two ends of the driving main shaft are both provided with the double-bearing mechanism, and the double-bearing mechanism comprises a first bearing and a second bearing which are sleeved at one end of the driving main shaft; a circular hole channel which is coaxial with the driving main shaft is arranged on the end surface of the driving main shaft; the driving main shaft is also provided with a second through hole communicated with the round hole channel, the second through hole is vertical to the round hole channel, and the second through hole is arranged between the first bearing and the second bearing; a baffle ring is arranged between the first bearing and the second bearing. The baffle ring is a circular ring-shaped member which is coaxially arranged with the first bearing and the second bearing, and the inner diameter of the baffle ring is larger than the inner diameters of the outer rings of the first bearing and the second bearing; the first bearing and the second bearing are respectively clung to two ends of the baffle ring.

Further, the outer diameter of the baffle ring is equal to the outer diameters of the first bearing and the second bearing; the baffle ring is sleeved with a fixed flange coaxial with the baffle ring, and the first bearing and the second bearing are both arranged in the fixed flange; the flange is fixedly connected with the outer rings of the first bearing and the second bearing, the flange is also fixedly connected with the outer ring surface of the baffle ring, and the flange is fixedly connected on the second side plate; threads are arranged in the circular hole channel, and an oil filling nozzle is screwed in the circular hole channel.

Furthermore, a plurality of second through holes are formed in the driving main shaft and are uniformly distributed in the circumferential direction around the circular hole channel.

Compared with the prior art, the invention has the following beneficial effects:

the first reciprocating driving device can drive the cutter box to reciprocate, and the second reciprocating driving device can drive the upper cutter beam and the lower cutter beam to perform sealing action, so that the cutter box automatically reciprocates to seal; the lifting device can automatically adjust the upper position and the lower position of the knife box, so that the labor is reduced, and the efficiency is improved.

The first reciprocating driving device is connected with the adjustable reciprocating plate through the reciprocating mechanism, and drives the knife box to reciprocate through the swinging of the adjustable reciprocating plate so as to automatically seal the knife box; the shaft cam is adopted to drive the adjustable reciprocating plate to swing, the structure is simple, the installation is easy, and the transmission efficiency is high compared with belt transmission; the reciprocating groove drives the fourth sliding chute, so that the abrasion is small, and the service life of the machine is prolonged; a third motor of the position adjusting mechanism can drive a first driving gear to rotate, the first driving gear drives a first driven gear to rotate, the first driven gear drives a second lead screw to rotate, the second lead screw drives an adjusting plate to move, the adjusting plate drives a fixed shaft and a sixth sliding block to move, and the fixed shaft moves along the direction of a third sliding rail under the limitation of the sixth sliding block; the fixed shaft drives the adjustable reciprocating plate to move, the first sliding groove and the second sliding groove on the adjustable reciprocating plate move, the second sliding block and the third sliding block are kept still, the distance between the second sliding block and the fixed shaft is changed, the second sliding block drives the swing amplitude of the first sliding groove to change, the first sliding groove drives the swing amplitude of the second sliding groove to change, and the change of the swing amplitude of the second sliding groove can cause the change of the reciprocating stroke of the third sliding block; meanwhile, the distance between the third sliding block and the fixed shaft is changed, so that the second sliding groove can drive the moving stroke of the third sliding block to change, and finally the moving stroke of the third sliding block driving the knife box to reciprocate on the fifth sliding rail is changed; the moving stroke of the knife box can be adjusted only by starting the third motor, the adjusting method is simple and quick, labor can be saved, and the production efficiency can be improved.

The driving main shaft drives the upper tool beam and the lower tool beam through the first slider-crank mechanism and the second slider-crank mechanism, compared with belt transmission, the transmission efficiency is higher, and the upper tool beam and the lower tool beam move more synchronously; because the driving main shaft needs to drive the upper tool beam and the lower tool beam simultaneously, the bearing stress on the driving main shaft is larger, and the double bearing mechanisms are arranged at the two ends of the driving main shaft, compared with a single bearing structure, the double bearing mechanisms can reduce the bearing stress, so that the bearing is more wear-resistant; the circular hole channel is matched with the second through hole and the oil filling nozzle, lubricating oil can be added into the first bearing and the second bearing, the first bearing and the second bearing are convenient to maintain, and the service life is prolonged; the first through hole is formed in the second side plate, so that the first slider-crank mechanism and the second slider-crank mechanism can be arranged on one side, away from the upper knife beam and the lower knife beam, of the second side plate, and meanwhile, the first reciprocating driving device is arranged below the knife box, so that the structure of the packaging machine can be more compact, the size of the packaging machine is reduced, and the space is effectively utilized; a buffer mechanism between the upper tool apron and the upper tool beam is arranged on the fourth connecting rod, so that the upper tool beam stably applies pressure to the upper tool apron, the pressure between the upper tool apron and the lower tool apron is stable, and the sealing effect is good; the linear bearing is matched with the buffer bearing steel, so that the motion directions of the upper connecting section and the lower connecting section are kept consistent, and the lower connecting section is ensured to stably transmit force to the upper knife beam; the upper connecting section is connected with the lower connecting section through the buffer spring, so that the upper knife beam can be buffered by the buffer spring when moving to the upper limit position and the lower limit position, the force generated when the upper knife beam collides with other parts is reduced, the abrasion of the parts such as the upper knife beam is reduced, and the service life of the packaging machine is prolonged; the upper linear bearing and the buffer bearing steel are in rolling friction, so that the friction resistance is small, the noise is low, the clamping is not easy to occur, and the pressure is stable.

Drawings

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

FIG. 2 is a schematic structural view of embodiment 1 of the present invention;

fig. 3 is a schematic view of a lifting device according to embodiment 1 of the present invention;

FIG. 4 is a schematic view of a first reciprocating drive apparatus of embodiment 1 of the present invention;

FIG. 5 is a schematic view of a reciprocating mechanism according to embodiment 1 of the present invention;

fig. 6 is a schematic view of a knife cassette of embodiment 1 of the invention;

fig. 7 is a side view of a knife box of embodiment 1 of the invention;

fig. 8 is a schematic structural view of a fourth connecting rod according to embodiment 1 of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8;

fig. 10 is a schematic view of a double bearing mechanism of embodiment 3 of the present invention;

fig. 11 is a schematic distribution diagram of second through holes according to embodiment 4 of the present invention.

In the figure: the device comprises a rack 1, a knife box 2, a first reciprocating driving device 3, a conveying device 4, a lifting device 5, a double-bearing mechanism 6, a fixing plate 101, a first slide rail 102, a first slide block 103, a first side plate 104, an upper knife beam 201, a lower knife beam 202, an upper knife holder 203, a lower knife holder 204, a second side plate 205, a fourth slide rail 206, a seventh slide block 207, a first through hole 208, an upper knife beam connecting shaft 209, a lower knife beam connecting shaft 210, a driving spindle 211, a fourth motor 212, a second driven gear 213, a second driving gear 214, a first connecting rod 215, a first connecting rod connecting shaft 216, a second connecting rod 217, a third connecting rod 218, a fourth connecting rod 219, a second connecting rod connecting shaft 220, an upper connecting section 221, a lower connecting section 222, buffering bearing steel 223, a UU bearing 224, a limiting block 225, a buffering spring 226, a second connecting plate 301, an adjustable reciprocating plate 302, a fixing shaft 303, a first chute 304, a second chute 305, a fixing shaft 305, a second chute 102, a second connecting shaft 220, a second connecting shaft, The device comprises a second slider 306, a third slider 307, a fifth slide rail 308, an eighth slider 309, a third connecting plate 310, a rotating shaft 311, a second motor 312, a reciprocating groove 313, a fourth slider 314, a fifth slider 315, a second slide rail 316, a first connecting plate 317, an adjusting plate 318, a second screw rod 319, a third motor 320, a first driven gear 321, a first driving gear 322, a sixth slider 323, a third slide rail 324, a motion-preventing cylinder 325, a connecting knife box plate 326, a first motor 501, a first screw rod 502, a connecting block 503, a fixing flange 601, a retaining ring 602, a first bearing 603, a second bearing 605, a circular hole channel 606, a second through hole 607 and an oil filling nozzle 608.

Detailed Description

Example 1

A reciprocating type packing machine is shown in figures 1, 2 and 6 and comprises a frame 1, wherein a knife box 2 is connected to the frame 1, and a first reciprocating driving device 3 is connected to the knife box 2; the rack 1 is also connected with a conveying device 4 matched with the knife box 2, and the conveying device 4 feeds materials into the knife box 2; the knife box 2 comprises an upper knife beam 201 which is horizontally arranged, a lower knife beam 202 which is parallel to the upper knife beam 201 is arranged right below the upper knife beam 201, and the upper knife beam 201 and the lower knife beam 202 are also connected with a second reciprocating driving device; the bottom end of the upper knife beam 201 is connected with an upper knife holder 203, and the top end of the lower knife beam 202 is connected with a lower knife holder 204.

As shown in fig. 3, the rack 1 includes a vertically arranged fixed plate 101, and a vertical first slide rail 102 is arranged on the fixed plate 101; a first sliding block 103 is arranged on the first sliding rail 102, a vertical first side plate 104 is fixedly connected to the first sliding block 103, and the first side plate 104 moves along the first sliding rail 102; the first side plate 104 is connected with a lifting device 5; the lifting device 5 comprises a first motor 501 fixedly connected to the fixing plate 101, the first motor 501 is connected with a vertically arranged first screw rod 502, the first screw rod 502 is connected with a connecting block 503 in a threaded manner, and the connecting block 503 is fixedly connected with the knife box 2.

As shown in fig. 2, 4 and 5, the first reciprocating driving device 3 includes a reciprocating fixed plate 101 fixedly connected to the first side plate 104, a reciprocating swing mechanism connected to the knife box 2 is disposed on the reciprocating fixed plate 101, the reciprocating swing mechanism includes an adjustable reciprocating plate 302 horizontally disposed, and the adjustable reciprocating plate 302 is a long plate structure; the middle part of the adjustable reciprocating plate 302 is hinged with a vertical fixed shaft 303; the adjustable reciprocating plate 302 is further provided with a first sliding chute 304 and a second sliding chute 305 which are positioned at two sides of the fixed shaft 303; the length directions of the first sliding chute 304 and the second sliding chute 305 are consistent with the length direction of the adjustable reciprocating plate 302, and the first sliding chute 304 and the second sliding chute 305 are arranged in central symmetry around the fixed shaft 303; a second sliding block 306 is arranged in the first sliding chute 304, and the second sliding block 306 is connected with a reciprocating mechanism; a third sliding block 307 is arranged in the second sliding chute 305, the top end of the third sliding block 307 is connected with a connecting knife box plate 326, and the top end of the connecting knife box plate 326 is connected with the knife box 2.

The second slider 306 and the third slider 307 are both bearings, and the axes of the second slider 306 and the third slider 307 are vertically arranged; the second slider 306 slides along the first sliding groove 304, and the third slider 307 slides along the second sliding groove 305; the third slide block 307 is connected with a knife box 2 plate, and the knife box 2 plate is connected with the bottom end of the knife box 2; the first reciprocating drive 3 is disposed below the magazine 2. The first side plate 104 is further fixedly connected with a horizontal fifth sliding rail 308, the knife box 2 is connected to the fifth sliding rail 308, the knife box 2 is fixedly connected with an eighth sliding block 309, the eighth sliding block 309 is connected to the fifth sliding rail 308, and the knife box 2 moves along the fifth sliding rail 308.

As shown in fig. 4 and 5, the reciprocating mechanism includes a shaft cam, the shaft cam includes a rotating shaft 311, and the rotating shaft 311 is connected to a second motor 312; the rotating shaft 311 is also provided with a reciprocating groove 313, the reciprocating groove 313 is of a spiral structure, and the reciprocating groove 313 is of a closed annular structure; a fourth sliding block 314 is arranged in the reciprocating groove 313, a fifth sliding block 315 is connected to the fourth sliding block 314, the fifth sliding block 315 is connected with a horizontal second sliding rail 316, and the second sliding rail 316 is fixedly connected to the reciprocating fixed plate 101; the fifth slider 315 is connected to the second slider 306; a first connecting plate 317 horizontally arranged is fixedly connected to the fifth sliding block 315, the first connecting plate 317 is connected to the second sliding block 306, and the second motor 312 is fixedly connected to the reciprocating fixed plate 101; the reciprocating mechanism is disposed below the adjustable reciprocating plate 302, and the fourth slider 314 is a bearing.

As shown in fig. 4 and 5, the fixed shaft 303 is connected with a position adjusting mechanism, the position adjusting mechanism includes an adjusting plate 318 connected with the bottom end of the fixed shaft 303, a threaded hole is formed in the adjusting plate 318, a second screw rod 319 is screwed in the threaded hole, the second screw rod 319 is perpendicular to the second slide rail 316, and the second screw rod 319 is connected with a third motor 320; the second screw 319 is connected with a first driven gear 321, the first driven gear 321 is in threaded connection with a first driving gear 322, and the first driving gear 322 is connected with a third motor 320; the adjusting plate 318 is horizontally arranged, and the bottom end of the adjusting plate 318 is connected with a sixth sliding block 323; the bottom end of the sixth sliding block 323 is connected with a horizontally arranged third sliding rail 324, and the third sliding rail 324 is parallel to the second screw rod 319; the position adjusting mechanism further comprises an anti-moving air cylinder 325 matched with the first driving gear 322, and after the position of the first driving gear 322 is adjusted, the anti-moving air cylinder 325 extends out to abut against the first driving gear 322 to fix the first driving gear 322.

As shown in fig. 4 and 5, the reciprocating fixed plate 101 is an L-shaped structure, the reciprocating fixed plate 101 includes a second connecting plate 301 parallel to the first side plate 104, the second connecting plate 301 is fixedly connected to the first side plate 104, the reciprocating fixed plate 101 further includes a third connecting plate 310 fixedly connected to the second connecting plate 301, the third connecting plate 310 is horizontally disposed at the bottom end of the second connecting plate 301, and the second connecting plate 301 is disposed below the adjustable reciprocating plate 302; the second slide rail 316 is fixedly connected to the second connecting plate 301, the second motor 312 and the third slide rail 324 are fixedly connected to the top end of the third connecting plate 310, the third motor 320 is fixedly connected to the bottom end of the third connecting plate 310, and the anti-moving cylinder 325 is connected to the third connecting plate 310.

As shown in fig. 6 and 7, the knife box 2 includes a pair of symmetrically disposed second side plates 205, and any one of the second side plates 205 is disposed vertically; a vertical fourth sliding rail 206 is fixedly connected to any one second side plate 205, two ends of the upper knife beam 201 and the lower knife beam 202 are connected to the fourth sliding rail 206, and the upper knife beam 201 and the lower knife beam 202 move along the fourth sliding rail 206; the upper knife beam 201 and the lower knife beam 202 are fixedly connected with a seventh sliding block 207, and the seventh sliding block 207 is connected to a fourth sliding rail 206; two first through holes 208 are formed in any one second side plate 205, a pair of upper knife beam connecting shafts 209 are fixedly connected to two ends of an upper knife beam 201, and a pair of lower knife beam connecting shafts 210 are fixedly connected to two ends of a lower knife beam 202; the first connecting rod connecting shaft 216, the second connecting rod connecting shaft 220, the upper knife beam connecting shaft 209 and the lower knife beam connecting shaft 210 are all perpendicular to the second side plate 205, and the upper knife beam connecting shaft 209 and the lower knife beam connecting shaft 210 are all arranged in the first through hole 208.

As shown in fig. 6 and 7, the second reciprocating driving device includes a driving main shaft 211 connected to the two second side plates 205, the driving main shaft 211 is directly below the lower tool beam 202 and is parallel to the lower tool beam 202, a bearing mechanism is disposed on the driving main shaft 211, and the bearing mechanism includes needle bearings sleeved at two ends of the driving main shaft; the driving main shaft 211 is connected with a fourth motor 212; a second driven gear 213 is arranged on the driving main shaft 211, a second driving gear 214 is engaged and connected below the second driven gear 213, and the second driving gear 214 is connected with a fourth motor 212; two ends of the driving main shaft 211 are connected with a pair of first crank slider mechanisms; the pair of first crank slider mechanisms comprise a pair of first connecting rods 215 fixedly connected to two ends of the driving spindle 211, and any one of the first connecting rods 215 is hinged with a first connecting rod connecting shaft 216 parallel to the driving spindle 211; a pair of second connecting rods 217 is hinged to the pair of first connecting rod connecting shafts 216, and one end, far away from the first connecting rod connecting shafts 216, of any one second connecting rod 217 is hinged to the lower tool beam connecting shaft 210; any first connecting rod 215 is shorter than the second connecting rod 217.

As shown in fig. 6 and 7, the second reciprocating driving device further includes a pair of second slider-crank mechanisms connected to the pair of first connecting rod connecting shafts 216, each second slider-crank mechanism includes a third connecting rod 218 fixedly connected to the first connecting rod connecting shaft 216, one end of each third connecting rod 218, which is far away from the first connecting rod connecting shaft 216, is hinged to a fourth connecting rod 219, each third connecting rod 218 is hinged to a second connecting rod connecting shaft 220, and each second connecting rod connecting shaft 220 is hinged to a fourth connecting rod 219; one end of any fourth connecting rod 219 away from the third connecting rod 218 is hinged to the upper tool beam connecting shaft 209; any fourth connecting bar 219 is longer than the third connecting bar 218; the first connecting rod 215, the second connecting rod 217, the third connecting rod 218 and the fourth connecting rod 219 are all parallel to the second side plate 205 and are all in a long plate structure, and a pair of first slider-crank mechanisms, a pair of second slider-crank mechanisms and a pair of side plates are all symmetrically arranged; the first link connecting shaft 216 and the second link connecting shaft 220 are perpendicular to the second side plate 205.

As shown in fig. 8 and 9, each fourth connecting rod 219 includes an upper connecting section 221 hinged to the upper blade connecting shaft 209, and further includes a lower connecting section 222 hinged to the second connecting rod connecting shaft 220, and a buffer mechanism is disposed between each upper connecting section 221 and each lower connecting section 222; any upper connecting section 221 is positioned above the lower connecting section 222, the top end of any upper connecting section 221 is hinged with the upper knife beam connecting shaft 209, and the bottom end of any lower connecting section 222 is hinged with the second connecting rod connecting shaft 220; each buffer mechanism comprises buffer bearing steel 223 fixedly connected with the bottom end of the upper connecting section 221, and each buffer bearing steel 223 is of a cylindrical structure parallel to the lower connecting section 222; the top end of any lower connecting section 222 is fixedly connected with a linear bearing, any linear bearing is a UU bearing 224, any linear bearing is sleeved on a buffering bearing steel 223, the bottom end of any buffering bearing steel 223 is fixedly connected with a limiting block 225, and a buffering spring 226 is arranged between any limiting block 225 and the linear bearing.

Example 2

In the embodiment, the reciprocating packaging machine adopting the following method is used for adjusting the up-down position of the knife box 2, and the adjusting method is as follows, the first motor 501 is started, the first motor 501 drives the first lead screw 502 to rotate, the first lead screw 502 drives the connecting block 503 to move, the connecting block 503 drives the first side plate 104 to move, the first side plate 104 drives the knife box 2 to move up and down, and finally the up-down position of the knife box 2 is adjusted.

When the packaging machine works, the second motor 312 rotates and drives the shaft cam to rotate, the reciprocating groove 313 on the shaft cam rotates, and the reciprocating groove 313 drives the fourth sliding block 314 to reciprocate; the fourth slider 314 drives the fifth slider 315 to reciprocate on the second slide rail 316, the fifth slider 315 drives the second slider 306 to reciprocate through the first connecting plate 317, the second slider 306 drives the first sliding chute 304 to reciprocate, since the first sliding chute 304 and the second sliding chute 305 are respectively symmetrically disposed on two sides of the fixed shaft 303, the reciprocating swing of the first sliding chute 304 drives the reciprocating swing of the second sliding chute 305, the second sliding chute 305 drives the third slider 307 to reciprocate in the second sliding chute 305, and the third slider 307 drives the knife box 2 to reciprocate on the fifth slide rail 308 through the connecting knife box plate 326.

The moving stroke of the reciprocating movement of the knife box 2 can be adjusted by starting the third motor 320, the third motor 320 drives the first driving gear 322 to rotate, the first driving gear 322 drives the first driven gear 321 to rotate, the first driven gear 321 drives the second lead screw to rotate, the second lead screw 319 drives the adjusting plate 318 to move, the adjusting plate 318 drives the fixed shaft 303 and the sixth slider 323 to move, and the fixed shaft 303 moves along the direction of the third slide rail 324 under the limitation of the sixth slider 323; the fixed shaft 303 drives the adjustable reciprocating plate 302 to move, the first sliding groove 304 and the second sliding groove 305 on the adjustable reciprocating plate 302 move, the second sliding block 306 and the third sliding block 307 are kept still, the distance between the second sliding block 306 and the fixed shaft 303 changes, the second sliding block 306 drives the swing amplitude of the first sliding groove 304 to change, the first sliding groove 304 drives the swing amplitude of the second sliding groove 305 to change, and the swing amplitude change of the second sliding groove 305 can cause the reciprocating stroke change of the third sliding block 307; meanwhile, the distance between the third sliding block 307 and the fixed shaft 303 is changed, which also causes the second sliding chute 305 to drive the moving stroke of the third sliding block 307 to change, and finally the moving stroke of the third sliding block 307 driving the knife box 2 to reciprocate on the fifth sliding rail 308 changes; after the adjustment is completed, the anti-moving cylinder 325 is started, and the anti-moving cylinder 325 extends out to prop against the first driving gear 322 to fix the first driving gear 322.

When the upper tool beam 201 and the lower tool beam 202 work, the main driving shaft 211 drives the first connecting rod 215 of the first slider-crank mechanism to rotate, the first connecting rod 215 drives the first connecting rod connecting shaft 216 to rotate, the first connecting rod connecting shaft 216 drives the second connecting rod 217 to move, and the second connecting rod 217 drives the lower tool beam 202 to reciprocate on the fourth sliding rail 206 through the lower tool beam connecting shaft 210; meanwhile, the first connecting rod connecting shaft 216 drives the third connecting rod 218 of the second slider-crank mechanism to rotate, the third connecting rod 218 drives the fourth connecting rod 219 to move, and the fourth connecting rod 219 drives the upper knife beam 201 to reciprocate on the fourth slide rail 206 through the upper knife beam connecting shaft 209; when the fourth connecting rod 219 drives the upper tool beam 201 to move, the lower connecting section 222 drives the UU bearing 224 to move on the buffer bearing steel 223, the UU bearing 224 extrudes the spring, the spring generates elasticity and drives the limiting block 225 to move, the limiting block 225 drives the buffer bearing steel 223 to move, and the buffer bearing rod steel drives the upper connecting section 221 and the upper tool beam 201 to move; buffer spring 226 plays the cushioning effect when last sword roof beam 201 goes up and down, and reducing wear is rolling friction between UU bearing 224 and the buffering bearing steel 223, and reducing wear improves the part life-span.

Example 3

Compared with embodiment 1, the bearing mechanism of the present embodiment is two double bearing mechanisms 6 disposed at both ends of the driving main shaft 211, and as shown in fig. 10, each double bearing mechanism 6 includes a first bearing 603 and a second bearing 605 sleeved at one end of the driving main shaft 211; a circular hole channel 606 which is coaxial with the driving main shaft 211 is arranged on the end surface of the driving main shaft 211; the driving main shaft 211 is further provided with a second through hole 607 communicated with the circular hole channel 606, the second through hole 607 is perpendicular to the circular hole channel 606, and the second through hole 607 is arranged between the first bearing 603 and the second bearing 605; a retainer ring 602 is disposed between the first bearing 603 and the second bearing 605. The retainer ring 602 is an annular member provided coaxially with the first bearing 603 and the second bearing 605, and the inner diameter of the retainer ring 602 is larger than the inner diameter of the outer rings of the first bearing 603 and the second bearing 605; the first bearing 603 and the second bearing 605 are respectively attached to two ends of the retainer ring 602.

The outer diameter of the retainer ring 602 is equal to the outer diameter of the first bearing 603 and the second bearing 605; a fixed flange 601 coaxial with the baffle ring 602 is sleeved on the baffle ring 602, and the first bearing 603 and the second bearing 605 are both arranged in the fixed flange 601; the flange is fixedly connected with the outer rings of the first bearing 603 and the second bearing 605, and is also fixedly connected with the outer ring surface of the baffle ring 602; threads are arranged in the circular hole passage 606, and an oil filling nozzle 608 is screwed in the circular hole passage 606.

When the packaging machine is not started, lubricating oil can be added into the circular hole channel 606 through the oil filling nozzle 608, after the main driving shaft 211 rotates, the lubricating oil is subjected to centrifugal force, moves towards the side arc surface direction of the main driving shaft 211 along the second through hole 607, enters a gap between the first bearing 603 and the second bearing 605, and finally the lubricating oil in the second through hole 607 extrudes the lubricating oil between the first bearing 603 and the second bearing 605 into the first bearing 603 and the second bearing 605, so that the first bearing 603 and the second bearing 605 are lubricated.

Example 4

Compared with the embodiment 3, the driving spindle 211 of the present embodiment is provided with three second through holes 607, and as shown in fig. 11, the three second through holes 607 are uniformly distributed around the circular hole passage 606 in a circumference. The working procedure of this example is the same as example 3.

Claims

1. A reciprocating type packing machine comprises a rack and is characterized in that a knife box is connected to the rack, and a first reciprocating driving device is connected to the knife box; the knife box comprises an upper knife beam which is horizontally arranged, a lower knife beam which is parallel to the upper knife beam is arranged under the upper knife beam, and the upper knife beam and the lower knife beam are further connected with a second reciprocating driving device.

2. The reciprocating packaging machine as claimed in claim 1, wherein the frame includes a vertically disposed fixed plate on which a vertical first slide rail is disposed; a first sliding block is arranged on the first sliding rail, and a vertical first side plate is fixedly connected to the first sliding block; the first side plate is connected with a lifting device; the lifting device comprises a first motor fixedly connected to the fixing plate, the first motor is connected with a first lead screw vertically arranged, the first lead screw is connected with a connecting block in a threaded mode, and the connecting block is fixedly connected with the knife box.

3. The reciprocating packaging machine as claimed in claim 2, wherein the first reciprocating driving device includes a reciprocating fixed plate fixedly connected with the first side plate, the reciprocating fixed plate is provided with a reciprocating swing mechanism connected with the knife box, the reciprocating swing mechanism includes an adjustable reciprocating plate horizontally arranged, and the adjustable reciprocating plate is of a long plate structure; the middle part of the adjustable reciprocating plate is hinged with a vertical fixed shaft; the adjustable reciprocating plate is also provided with a first sliding chute and a second sliding chute which are positioned at two sides of the fixed shaft; a second sliding block is arranged in the first sliding groove and connected with a reciprocating mechanism; and a third sliding block is arranged in the second sliding groove and connected with the knife box.

4. The reciprocating packaging machine as claimed in claim 3, wherein the reciprocating mechanism includes a shaft cam including a rotating shaft to which a second motor is connected; the rotating shaft is provided with a reciprocating groove, the reciprocating groove is of a spiral structure, and the reciprocating groove is of a closed annular structure; and a fourth sliding block is arranged in the reciprocating groove, a fifth sliding block is connected onto the fourth sliding block, the fifth sliding block is connected with a horizontal second sliding rail, and the second sliding rail is fixedly connected onto the reciprocating fixed plate.

5. The reciprocating type packaging machine as claimed in claim 4, wherein a position adjusting mechanism is connected to the fixed shaft, the position adjusting mechanism includes an adjusting plate connected to a bottom end of the fixed shaft, the adjusting plate is provided with a threaded hole, a second lead screw is threaded in the threaded hole and perpendicular to the second slide rail, and the second lead screw is connected to a third motor; the bottom end of the adjusting plate is connected with a sixth sliding block; the bottom end of the sixth sliding block is connected with a horizontally arranged third sliding rail, and the third sliding rail is parallel to the second screw rod; the position adjusting mechanism further comprises a movement-preventing cylinder.

6. The reciprocating packaging machine as claimed in claim 5, wherein said knife box includes a pair of symmetrically disposed second side plates, either of said second side plates being vertically disposed; a vertical fourth sliding rail is fixedly connected to any one of the second side plates, two ends of the upper knife beam and two ends of the lower knife beam are connected to the fourth sliding rail, and the upper knife beam and the lower knife beam move along the fourth sliding rail; two first through holes are formed in any one of the second side plates, a pair of upper knife beam connecting shafts is fixedly connected to two ends of the upper knife beam, and a pair of lower knife beam connecting shafts is fixedly connected to two ends of the lower knife beam; the upper knife beam connecting shaft and the lower knife beam connecting shaft are both perpendicular to the second side plate, and are both arranged in the first through hole.

7. The reciprocating packaging machine as claimed in claim 6, wherein the second reciprocating drive means includes a drive spindle connected to the two second side plates, the drive spindle being disposed directly below and parallel to the lower knife beam; bearing mechanisms are arranged at two ends of the driving main shaft, and the driving main shaft is connected with a fourth motor; two ends of the driving main shaft are connected with a pair of first crank sliding block mechanisms; the pair of first crank sliding block mechanisms comprise a pair of first connecting rods connected to two ends of the driving spindle, and any one of the first connecting rods is hinged with a first connecting rod connecting shaft parallel to the driving spindle; and a pair of second connecting rods is hinged to the first connecting rod connecting shaft, and one ends, far away from the first connecting rod connecting shaft, of the second connecting rods are hinged to the lower cutter beam connecting shaft.

8. The reciprocating packaging machine as claimed in claim 7, wherein said second reciprocating drive means further comprises a pair of second slider-crank mechanisms connected to a pair of first link connecting shafts, any of said second slider-crank mechanisms comprising a third link fixedly connected to the first link connecting shafts, and any of said third link having an end remote from the first link connecting shafts hinged to a fourth link; one end of any one fourth connecting rod, which is far away from the third connecting rod, is hinged to the upper tool beam connecting shaft; the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are all parallel to the second side plate.

9. The reciprocating packaging machine as claimed in claim 8, wherein any one of said fourth connecting rods includes an upper connecting section hinged to the upper knife beam connecting shaft, and further includes a lower connecting section hinged to the second connecting rod connecting shaft, and a buffering mechanism is provided between any one of said upper and lower connecting sections; the top end of any upper connecting section is hinged with the upper knife beam connecting shaft, and the bottom end of any lower connecting section is hinged with the second connecting rod connecting shaft; any one of the buffer mechanisms comprises buffer bearing steel fixedly connected with the bottom end of the upper connecting section, and any one of the buffer bearing steel is of a cylindrical structure parallel to the lower connecting section; and the top end of the lower connecting section is fixedly connected with a linear bearing, the linear bearing is sleeved on buffering bearing steel, the bottom end of the buffering bearing steel is fixedly connected with a limiting block, and a buffering spring is arranged between the limiting block and the linear bearing.

10. The reciprocating packaging machine as claimed in claim 9, wherein the reciprocating fixed plate is of an L-shaped configuration, the reciprocating fixed plate includes a second connecting plate parallel to the first side plate, the second connecting plate is fixedly connected to the first side plate, the reciprocating fixed plate further includes a third connecting plate fixedly connected to the second connecting plate, the third connecting plate is horizontally disposed at a bottom end of the second connecting plate, the second connecting plate is disposed below the adjustable reciprocating plate; the second slide rail links firmly on the second connecting plate, and the second motor all links firmly on the top of third connecting plate with the third slide rail, and the third motor links firmly in the bottom of third connecting plate, and the anti-moving cylinder is connected on the third connecting plate.